CN109648039B - Multi-station continuous shot blasting equipment for hoisting chain - Google Patents
Multi-station continuous shot blasting equipment for hoisting chain Download PDFInfo
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- CN109648039B CN109648039B CN201910103568.9A CN201910103568A CN109648039B CN 109648039 B CN109648039 B CN 109648039B CN 201910103568 A CN201910103568 A CN 201910103568A CN 109648039 B CN109648039 B CN 109648039B
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- shot blasting
- supporting roller
- roller
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- 238000005422 blasting Methods 0.000 title claims abstract description 100
- 239000000428 dust Substances 0.000 claims abstract description 63
- 238000007599 discharging Methods 0.000 claims abstract description 40
- 238000003860 storage Methods 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 239000006187 pill Substances 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 210000002445 nipple Anatomy 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010024796 Logorrhoea Diseases 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21L—MAKING METAL CHAINS
- B21L15/00—Finishing or dressing chains or chain links, e.g. removing burr material, calibrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
- B24C3/083—Transfer or feeding devices; Accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/08—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces
- B24C3/10—Abrasive blasting machines or devices; Plants essentially adapted for abrasive blasting of travelling stock or travelling workpieces for treating external surfaces
- B24C3/14—Apparatus using impellers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/006—Treatment of used abrasive material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chain Conveyers (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a hoisting chain multi-station continuous shot blasting device which comprises a machine case, a centrifugal fan, a shot blasting machine, a bucket lifting device, a shot dust separator, a shot storage bin, a multi-directional screw conveyor, a chain feeding and discharging device, wherein the first supporting roller and the fourth supporting roller are arranged in a shot blasting area of the machine case, the height of the second supporting roller is higher than that of the first supporting roller and the fourth supporting roller, the third supporting roller is slightly lower than that of the first supporting roller and the fourth supporting roller, a plurality of chain feeding and discharging driving chain wheels are respectively arranged on the chain feeding and discharging supporting rollers side by side, a hoisting chain between the chain feeding and discharging driving chain wheels is arranged in a torsion state, the first hoisting chain section of each hoisting chain between the first supporting roller and the second supporting roller is loose, and the second hoisting chain section between the second supporting roller and the third hoisting chain section between the third supporting roller and the fourth supporting roller are all tensioned. The invention can treat the outer surface of the hoisting chain and the inner dead angle between links, and has compact longitudinal dimension and high work efficiency of shot blasting treatment.
Description
[ Field of technology ]
The invention relates to a hoisting chain multi-station continuous shot blasting device, and belongs to the technical field of hoisting chain shot blasting.
[ Background Art ]
Along with the continuous enhancement of national importance and the improvement of environmental protection problems, social responsibility drives enterprises to actively follow up with the implementation of environmental improvement policies. In the lifting industry, the problem of surface cleaning treatment of a lifting chain is that the production mode of firstly discharging and then treating is changed into a cleaner and more environment-friendly production mode, namely, the traditional barrel throwing and rolling mode is changed into an environment-friendly treatment method.
The hoisting chain for the hoisting hoist is a high-precision chain with a short chain ring, the diameter of the chain ring is 4-12 mm, the hoisting chain is an indispensable ring of a hoisting hoist product, and various indexes of the quality of the hoisting chain are directly related to the service performance of the hoisting hoist. The shot blasting treatment of the hoisting chain has the following purposes: removing rust, welding burrs and quenching oxide layers/skins on the surface, so that the surface of the lifting chain has a certain finish, and eliminating surface defects of the lifting chain; and the second is: the internal quality of the hoisting chain is improved, namely, the quenching residual stress is removed, and the surface compressive stress and the fatigue resistance of the material are improved; thirdly, it is: the subsequent coating quality of the surface of the lifting chain is improved, namely, a surface capable of improving the adhesive force of the coating is provided, and blackening, electrophoresis or zinc coating treatment is carried out according to the process requirement so as to improve the corrosion resistance of the surface of the lifting chain.
The technical staff in the hoisting industry know that the existing barrel throwing and rolling technology has the following technical defects:
1. The surface treatment quality of the inner arc angle (inner R dead angle) position of the short chain ring and the short chain ring connected has a large technical defect;
2. The capacity of the throwing barrel is deeply limited, and the maximum capacity of the throwing barrel is 100m long as a lifting chain;
3. The processing technology of the swinging drum is extremely easy to cause the defects of time and labor waste of the knotting process of the hoisting chain after knotting;
4. the problems of high labor intensity, low work efficiency, high energy consumption, high noise, dust flying, air pollution and the like are serious.
[ Invention ]
The invention aims to provide a multi-station continuous shot blasting device for a lifting chain, which not only can treat the outer surface of the lifting chain, but also can treat the inner dead angle between chain rings.
Therefore, the invention provides the following technical scheme:
the hoisting chain multi-station continuous shot blasting equipment comprises a shot storage bin, a machine case positioned below Chu Wancang, a longitudinal screw conveyor arranged at the bottom of the machine case, a lower transverse screw conveyor, a bucket lifting device, an upper transverse screw conveyor, a shot dust separator, a chain feeding device and a chain discharging device, wherein a centrifugal fan is arranged at the top of the machine case, the interior of the machine case is sequentially divided into a front sealing area, a shot blasting area and a rear sealing area, the lower parts of the front sealing area and the rear sealing area are respectively communicated with the lower parts of the shot blasting areas, an air outlet of the centrifugal fan is communicated with the rear sealing area, chain feeding carrier rollers of the chain feeding device and chain discharging carrier rollers of the chain discharging device are respectively and rotatably arranged at two sides of the front sealing area and two sides of the rear sealing area, the chain feeding carrier roller is in transmission connection with the chain discharging carrier roller, the lower transverse screw conveyor is connected with the tail part of the longitudinal screw conveyor, the lower end of the bucket lifting device is connected with one end of the lower transverse screw conveyor, the upper end of the bucket lifting device is connected with the upper transverse screw conveyor, the upper port of the pill-dust separator is communicated with the upper transverse screw conveyor, the lower port of the pill-dust separator is communicated with Chu Wancang, four steel pill material control valves are respectively arranged at the bottom of the pill storage bin, an upper pill impeller, another upper pill impeller, a lower pill impeller and another lower pill impeller are respectively arranged in the pill throwing area at intervals, and the four pill impellers are connected with the corresponding steel pill material control valves one by one, and the improvement point is that: the shot blasting area is rotationally provided with four mutually parallel support rollers, a first support roller, a second support roller, a third support roller and a fourth support roller are sequentially arranged between an inlet of the adjacent shot blasting area and an outlet of the adjacent shot blasting area, the first support roller and the fourth support roller are at the same height, the second support roller is positioned above the first support roller and the fourth support roller, and the third support roller is slightly lower than the first support roller and the fourth support roller; the feeding idler and the discharging idler are respectively provided with a plurality of chain feeding driving sprockets and a plurality of chain discharging driving sprockets side by side, each continuously advancing lifting chain is meshed with the chain feeding driving sprocket and sequentially passes through a front sealing area, a first supporting roller, a second supporting roller, a third supporting roller, a fourth supporting roller and a rear sealing area, each lifting chain is meshed with the chain discharging driving sprocket, wherein each lifting chain is arranged in a torsion state in the installation process before advancing, the lifting chain between the chain feeding driving sprocket and the chain discharging driving sprocket, the first lifting chain section between the first supporting roller and the second supporting roller is in a loose string state in the advancing process, and the second lifting chain section between the second supporting roller and the third lifting chain section between the third supporting roller and the fourth supporting roller are in a tensioning state.
An upper shot blasting device and a lower shot blasting device which are adjacent to the inlet of the shot blasting area are respectively positioned above and below the first lifting chain section in the loose string state; another upper shot blast apparatus adjacent the shot blast area exit is located above the second and third lifting chain sections, and another lower shot blast apparatus is located below the third lifting chain section.
On the basis that the lifting chain passes through the shot blasting area through optimized tensioning, string loosening and twisting travelling tracks, the positions of four shot blasting machines are correspondingly optimized, the effective shot blasting function of shot blasting can be utilized to the greatest extent, the shot blasting machines can be used for blasting high-speed dense steel shot bundles to perform three-dimensional and omnibearing uniform striking on each point position on the inner surface and the outer surface of the lifting chain, the lifting chain is free of dead angles and dead points in treatment, and the shot blasting cleaning quality and treatment efficiency are improved.
The Chu Wan chambers are arranged in a split mode, the two pill storage chambers and one pill and dust separator form a delta-shaped layout, and the upper ports of the two pill storage chambers are respectively communicated with the pill and dust separator.
And after Chu Wancang pieces of ball blasting devices are arranged, four steel ball material control valves can be arranged at the bottom of each ball storage bin, and four ball blasting devices matched with the four steel ball material control valves of each ball storage bin are arranged in the ball blasting area, so that the ball blasting density is improved.
The invention also comprises a steel shot material recoverer arranged outside the case, wherein the top of the case is provided with a main exhaust pipe, the outlets arranged at the top of the front sealing area and the top of the rear sealing area are respectively communicated with the main exhaust pipe, one end of the main exhaust pipe far away from the case is communicated with an air inlet of the steel shot material recoverer, and the bottom end of the steel shot material recoverer is provided with a shot discharging port.
Because a small amount of steel shots which do not fall to the bottom of the shot blasting area during shot blasting can be ejected into the front sealing area and the rear sealing area, the steel shots are conveyed to the steel shot recoverer through the main exhaust pipe and then collected, and then can be added into the shot storage bin again for reuse.
The dust generated by the small specific gravity oxide skin dust, rust dust and steel shot material in the rear sealing area and the shot blasting area after flying enters the main exhaust pipe through two outlets under the action of the centrifugal fan and is conveyed into the steel shot material recoverer for transfer.
The invention also comprises a multi-pulse multi-layer filter bag dedusting system arranged outside the chassis, the multi-pulse multi-layer filter bag dedusting system comprises a dedusting fan, a multi-pulse generator, a pulse controller connected with the multi-pulse generator through an electric signal, and a multi-layer filter bag, wherein the multi-layer filter bag is communicated with the steel shot material recoverer through an exhaust connecting pipe, the bag opening of the multi-layer filter bag is communicated with the air suction opening of the dedusting fan, the air outlet of the dedusting fan discharges clean air to the outside through an exhaust pipe, and the bottom end of the multi-layer filter bag is provided with a dust drain opening.
The multi-pulse multi-layer filter bag dust collection system has strong dust cleaning effect and high efficiency, dust-containing gas is purified after the air subjected to shot blasting treatment is treated by the multi-pulse multi-layer filter bag dust collection system, the dust emission concentration is low, and the pollution to the atmospheric environment can be avoided.
The upper part of the pill dust separator is communicated with the main exhaust pipe through a dust conveying pipe.
Dust in a mixed corrosion state conveyed into the shot dust separator can be discharged into the main exhaust pipe after being separated, so that the cleanliness of shot materials after ejection treatment is improved, and cleaner shot materials are conveyed to the shot storage bin. Wherein, the dust in the mixed erosion state comes from oxide scale dust with larger specific gravity at the bottom of the shot blasting chamber, rust dust and dust generated by crushing steel shots.
The lower part of the pill dust separator is communicated with a crushed aggregates discharge pipe.
The burrs and broken steel shots conveyed into the shot dust separator are directly discharged from the crushed material discharge pipe after sedimentation treatment, so that the load of a subsequent multi-pulse multi-layer filter bag dust collection system is reduced, and the service life of the system can be prolonged. Wherein, burr, garrulous steel shot come from the shot-blasting room bottom.
The transmission connection of the chain inlet carrier roller and the chain outlet carrier roller is driven by a motor of the chain outlet device.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the ball dust separator can be used for carrying out sedimentation separation treatment on broken steel balls which are generated partially after the steel ball material is ejected and a large amount of dust which is generated by breaking the steel balls.
2. The space layout of the four supporting rollers is optimally arranged, which is beneficial to prolonging the passing length of the hoisting chain in the shot blasting area, thus shortening the depth dimension of the shot blasting area and leading the chassis to occupy small field, wherein,
The arrangement of the first supporting roller and the second supporting roller can enable the first lifting chain section between the two rollers to be in a loose string state just after entering the shot blasting area, the inner dead angle of the chain ring connected with the chain ring is exposed, the outer surface of the chain ring can be cleaned during shot blasting treatment, the inner dead angle can be more subjected to shot blasting jet cleaning, rust, welding burrs and quenching oxide layers and dirt at the inner dead angle can be rapidly removed under the wind force of the centrifugal fan after shot blasting, and therefore the problem that the inner dead angle of the chain ring connected with the chain ring cannot be subjected to shot blasting treatment during shot blasting in the prior art is solved;
the third supporting roller and the fourth supporting roller are arranged, so that the second lifting chain section and the third lifting chain section can be subjected to shot blasting treatment in a tensioning state.
3. The lifting chain is in a torsion state and passes through the shot blasting area and the rear sealing area, so that the lifting chain not only realizes the uniform shot blasting treatment at multiple angles and greatly reduces the contact treatment area of shot blasting leakage, but also receives the wind force of the centrifugal fan at multiple angles after shot blasting, and is beneficial to the full falling-off of oxide skin and rust attached to the lifting chain.
4. The continuous through type simultaneous shot blasting treatment of a plurality of hoisting chains is high in work efficiency, the problem of length limitation of the shot blasting treatment of the hoisting chains is solved, and the defects that knotting is easy to occur in the hoisting chain treatment process, and time and labor are wasted in the knotting-free treatment and the labor intensity is high are overcome.
[ Description of the drawings ]
The invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
[ Detailed description ] of the invention
Referring to fig. 1, the multi-station continuous shot blasting device for the crane chain comprises a shot storage bin 7, a machine case 1 positioned below the machine case Chu Wancang, a longitudinal screw conveyor 51, a lower transverse screw conveyor 52, a bucket lifting device 53, an upper transverse screw conveyor 54, a shot dust separator 6, a chain feeding device 2 and a chain discharging device 4 for conveying the crane chain K, wherein a centrifugal fan M is arranged at the top of the machine case 1, the interior of the machine case 1 is sequentially divided into a front sealing area 11, a shot blasting area 12 and a rear sealing area 13, the lower parts of the front sealing area and the rear sealing area are respectively communicated with the lower parts of the shot blasting areas, an air outlet of the centrifugal fan M is communicated with the rear sealing area 13, the chain feeding carrier roller 21 of the chain feeding device 2 and the chain discharging carrier roller 41 of the chain discharging device 4 are respectively and rotatably arranged on two sides of the front sealing area 11 and two sides of the rear sealing area 13, the chain feeding carrier roller 21 is in transmission connection with the chain discharging carrier roller 41, the lower transverse screw conveyor is connected with the tail part of the longitudinal screw conveyor, the lower end of the bucket lifting device is connected with one end of the lower transverse screw conveyor, the upper end of the bucket lifting device is connected with the upper transverse screw conveyor, the upper port of the pill dust separator is communicated with the upper transverse screw conveyor, the lower port of the pill dust separator is communicated with Chu Wancang, four steel pill control valves 71, 72, 73 and 74 are arranged at intervals on the bottom of the pill storage bin 7, and one upper pill impeller P1, the other upper pill impeller P3, one lower pill impeller P2 and the other lower pill impeller P4 are respectively arranged in the pill throwing area at intervals.
An upper shot blasting machine P1 is connected with a shot control valve 72 through a shot conveying nipple h 11; the other upper shot blasting machine P3 is connected with a shot control valve 73 through a shot conveying nipple h 12; a lower shot blasting machine P2 is connected with a shot control valve 71 through a shot conveying long connecting pipe h 21; the other lower shot blasting machine P4 is connected with a shot control valve 74 through a shot conveying long connecting pipe h 22.
Wherein, shot conveying short connecting pipes h11 and shot conveying long connecting pipes h21 and h22 extend into the shot blasting area 12.
The improvement points are as follows: the shot blasting area 12 is rotationally provided with four mutually parallel support rollers, a first support roller 31, a second support roller 32, a third support roller 33 and a fourth support roller 34 are sequentially arranged between an inlet of the adjacent shot blasting area and an outlet of the adjacent shot blasting area, the first support roller and the fourth support roller are at the same height, the second support roller is positioned above the first support roller and the fourth support roller, and the third support roller is slightly lower than the first support roller and the fourth support roller; the chain feeding idler 21 and the chain discharging idler 41 are respectively provided with a plurality of chain feeding driving sprockets 20 and a plurality of chain discharging driving sprockets 40 which are used for meshing driving a plurality of lifting chains, each continuously travelling lifting chain is meshed with the chain feeding driving sprocket 20 and sequentially passes through the front sealing area 11, the first supporting roller 31, the second supporting roller 32, the third supporting roller 33, the fourth supporting roller 34 and the rear sealing area 13, each lifting chain is meshed with the chain discharging driving sprocket 40 for discharging, wherein,
During the installation of each hoist chain K before traveling (running), the hoist chain between the in-chain drive sprocket 20 and the out-chain drive sprocket 40 is installed in a twisted state, and during traveling, each hoist chain K is in a loose string state in the first hoist chain segment K1 between the first support roller 31 and the second support roller 32, in a second hoist chain segment K2 between the second support roller 32 and the third support roller 33, and in a tensioned state in the third hoist chain segment K3 between the third support roller 33 and the fourth support roller 34.
The screw conveyor has the characteristics of longitudinal, lower transverse and upper transverse multidirectional screw conveying; the chain feeding device 2 comprises a bracket 22 symmetrically fixed at two sides of the front sealing area 11, and bearing seats (not shown) arranged at two ends of the bracket 22 and used for supporting the chain feeding carrier roller 21; the chain discharging device 4 comprises a bracket 42 symmetrically fixed at two sides of the rear sealing area 13, and bearing seats (not shown) mounted at two ends of the bracket 42 for supporting the chain discharging carrier roller 41.
A through hole (not shown in the figure) for the steel shot to fall is formed in the bottom of the shot blasting area 12, so that the steel shot can fall into the longitudinal screw conveyor 51 conveniently; the longitudinal screw conveyor is used for collecting steel shot materials falling to the bottom of the shot blasting area 12; the lower transverse screw conveyor 52 is for receiving steel shot from the longitudinal screw conveyor; the bucket elevator 53 is used for elevating the steel shot conveyed from the lower transverse screw conveyor; the upper transverse screw conveyor 54 conveys the steel shot it receives from the bucket elevator to the shot separator 6; the pill dust separators are used for carrying out sedimentation separation treatment on a certain amount of conveyed crushed steel shots and a large amount of dust, wherein the upward dust is discharged into the main exhaust pipe H through the dust conveying pipe H1, the sunken crushed steel shots are directly discharged through the crushed material discharge pipe H0, and on the other hand, intact steel shot materials flow to the bottoms of the pill dust separators 6 and enter the pill storage bin for recycling under the action of the pill material control valve, and the pill material control valve is used for controlling the conveying amount of the steel shot materials.
The air outlet of the centrifugal fan M is communicated with a blowing device (not shown) arranged at the upper part of the rear sealing area through an air outlet pipe, a lifting chain K passing through the rear sealing area 13 is positioned below the blowing device, the centrifugal fan M sends wind power into the rear sealing area 13, and the wind power of the blowing device acts on the lifting chain.
The longitudinal screw conveyor 51 is arranged in the longitudinal direction of the chassis 1; a lower transverse screw conveyor 52 is arranged below the rear sealing zone 13; the bucket elevator 53 is located on an outboard side of the rear seal area 13, this embodiment on the left outboard side (looking toward the front seal area); the pellet separator 6 is located below the upper transverse screw conveyor 54.
The steel shot control valves have the same structure and can be used universally, and the four steel shot control valves respectively arranged in each shot storage bin 7 correspond to four shot blasters.
During the loading installation (before travelling), the lifting chains K are first mounted in engagement to the chain-feeding drive sprocket 20, then through the front sealing zone 11, then to the first support roller 31, the second support roller 32, the third support roller 33, the fourth support roller 34, then through the rear sealing zone 13, whereupon the lifting chains K are repeatedly twisted in one direction, and finally the lifting chains K are mounted in engagement to the chain-discharging drive sprocket 40. After the above operations are all completed, the device can be started to perform continuous shot blasting operation, and the continuously advancing lifting chain K is always in a torsion state between the chain feeding driving sprocket and the chain discharging driving sprocket during shot blasting.
To facilitate the twisting of the plurality of hoist chains K, V-grooves (not shown) are formed in each support roller at intervals.
The lifting chains K are slightly loosely fed into the front sealing area 11 and enter the shot blasting area 12 in a loose string state (i.e. the lifting chains K are in a loose string state in the first lifting chain sections K1 of the first and second support rollers 31, 32), the lifting chains K are in the second lifting chain sections K2 of the second and third support rollers 32, 33 and the lifting chains K are in the third lifting chain sections K3 of the third and fourth support rollers 33, 34, the tension is gradually increased, and finally the lifting chains K pass through the rear sealing area 13 in a fully tensioned state.
An upper shot blasting device P1 and a lower shot blasting device P2 which are adjacent to the shot blasting area inlet are respectively positioned above and below the first lifting chain section K1 in the loose string state; another upper shot-blasting machine P3 adjacent to the shot-blasting zone outlet is located above the second and third lifting chain sections K2, K3, while another lower shot-blasting machine P4 is located below the third lifting chain section K3.
One upper shot blasting machine P1 and one lower shot blasting machine P2 are not only used for processing the outer surface of each lifting chain but also used for processing the inner dead angle between chain rings, and the other upper shot blasting machine P3 and the other lower shot blasting machine P4 are used for further processing the outer surface of each lifting chain.
The Chu Wan chambers are arranged in a split mode, the two pill storage chambers and one pill and dust separator 6 form a delta-shaped layout, and the upper ports of the two pill storage chambers are respectively communicated with the pill and dust separator 6.
Only one pill storage bin is visible in the illustration, namely the left hand pill storage bin 7.
The invention also comprises a steel shot material recoverer 8 arranged outside the machine case 1, wherein a main exhaust pipe H is arranged at the top of the machine case 1, an outlet 110 at the top of the front sealing area and an outlet 130 at the top of the rear sealing area are respectively communicated with the main exhaust pipe H, one end of the main exhaust pipe H, which is far away from the machine case 1, is communicated with an air inlet of the steel shot material recoverer 8, and a shot discharging port 80 is arranged at the bottom end of the steel shot material recoverer 8.
A steel shot recycling bin 81 is arranged right below the shot discharging opening 80.
The invention also comprises a multi-pulse multi-layer filter bag dedusting system 9 arranged outside the machine case, wherein the multi-pulse multi-layer filter bag dedusting system 9 comprises a dedusting fan 91, a multi-pulse generator 92, a pulse controller 93 electrically connected with the multi-pulse generator 92 and a multi-layer filter bag 94, the multi-layer filter bag 94 is communicated with the steel shot recycling device 8 through an exhaust pipe H2, the bag opening of the multi-layer filter bag 94 is communicated with the air suction opening of the dedusting fan 91, the air exhaust opening of the dedusting fan 91 discharges clean air to the outside through an exhaust pipe 95, and the bottom end of the multi-layer filter bag 94 is provided with a dust exhaust opening 940.
The multi-pulse generator 92 and the pulse controller 93 are respectively arranged above the front surface of the multi-pulse multi-layer filter bag dust collection system 9, and the dust collection fan 91 and the exhaust pipe 95 which are connected with each other are arranged at the top of the multi-layer filter bag dust collection system 9; a dust collection tub 96 is placed right below the dust drain opening 940.
The dust removal efficiency of the system is close to 99.5%, and compared with the barrel throwing and rolling mode in the prior art, the dust emission pollution environment is greatly reduced.
The upper part of the pill dust separator 6 is communicated with the main exhaust pipe H through a dust conveying pipe H1.
The lower part of the pill dust separator 6 is communicated with a crushed aggregates discharge pipe H0.
The driving connection of the chain feeding roller 21 and the chain discharging roller 41 is driven by a motor MT of the chain discharging device 4.
The longitudinal screw conveyor 51 is driven by a motor M1; the lower lateral screw conveyor 52 is driven by a motor (not shown); the bucket elevator 53 is driven by a motor M3; the upper lateral screw conveyor 54 is driven by a motor M4.
The shot blasting method is suitable for shot-blasting treatment of short section moment hoisting chains of various specifications.
The multi-station continuous shot blasting equipment for the lifting chain has high production capacity, can process up to 20 lifting chains simultaneously, can further strengthen the surface strength (compressive stress strengthening effect) of the lifting chain, and has the surface appearance quality reaching the metal natural color.
Claims (6)
1. A multi-station continuous shot blasting device for a crane chain comprises a shot storage bin, a chassis positioned below Chu Wancang, a longitudinal screw conveyor arranged at the bottom of the chassis, a lower transverse screw conveyor, a bucket lifting device, an upper transverse screw conveyor, a shot dust separator, a chain feeding device and a chain discharging device, wherein a centrifugal fan is arranged at the top of the chassis,
The interior of the case is sequentially divided into a front sealing area, a shot blasting area and a rear sealing area, the lower parts of the front sealing area and the rear sealing area are respectively communicated with the lower parts of the shot blasting areas, the air outlet of the centrifugal fan is communicated into the rear sealing area,
The chain feeding carrier roller of the chain feeding device and the chain discharging carrier roller of the chain discharging device are respectively and rotatably arranged at two sides of the front sealing area and two sides of the rear sealing area, the chain feeding carrier roller is in transmission connection with the chain discharging carrier roller and is driven by a motor of the chain discharging device,
The lower transverse screw conveyor is connected with the tail part of the longitudinal screw conveyor, the lower end of the bucket type lifting device is connected with one end of the lower transverse screw conveyor, the upper end of the bucket type lifting device is connected with the upper transverse screw conveyor, the upper port of the pill-dust separator is communicated with the upper transverse screw conveyor, the lower port of the pill-dust separator is communicated with Chu Wancang,
Chu Wancang are respectively provided with four shot control valves at the bottom, an upper shot blasting device, another upper shot blasting device, a lower shot blasting device and another lower shot blasting device are respectively arranged in the shot blasting area at intervals, the four shot blasting devices are connected with the corresponding shot control valves one by one,
The method is characterized in that: the shot blasting area is rotationally provided with four mutually parallel support rollers, a first support roller, a second support roller, a third support roller and a fourth support roller are sequentially arranged between an inlet of the adjacent shot blasting area and an outlet of the adjacent shot blasting area, the first support roller and the fourth support roller are at the same height, the second support roller is positioned above the first support roller and the fourth support roller, and the third support roller is slightly lower than the first support roller and the fourth support roller;
The feeding idler roller and the discharging idler roller are respectively provided with a plurality of chain feeding driving chain wheels and a plurality of chain discharging driving chain wheels in parallel, each continuously advancing lifting chain is meshed with the chain feeding driving chain wheels and sequentially passes through the front sealing area, the first supporting roller, the second supporting roller, the third supporting roller, the fourth supporting roller and the rear sealing area, each lifting chain is meshed with the chain discharging driving chain wheels for discharging,
In the process of installing each lifting chain before traveling, the lifting chain between the chain feeding driving sprocket and the chain discharging driving sprocket is installed in a torsion state, and in the process of traveling,
The first lifting chain section between the first supporting roller and the second supporting roller is in a loose string state, the second lifting chain section between the second supporting roller and the third lifting chain section between the third supporting roller and the fourth supporting roller are in a tensioning state,
An upper shot blasting device and a lower shot blasting device which are adjacent to the inlet of the shot blasting area are respectively positioned above and below the first lifting chain section in the loose string state; another upper shot blast apparatus adjacent the shot blast area exit is located above the second and third lifting chain sections, and another lower shot blast apparatus is located below the third lifting chain section.
2. The hoisting chain multi-station continuous shot blasting equipment according to claim 1, wherein two shot storage bins are arranged in a split mode, the two shot storage bins and one shot dust separator form a delta-shaped layout, and upper ports of the two shot storage bins are respectively communicated with the shot dust separator.
3. The hoist chain multi-station continuous shot blasting apparatus according to claim 1 or 2, characterized in that: still including locating the outside steel shot material recoverer of quick-witted case, quick-witted case top installation main exhaust column, the export that front seal district top, back seal district top part set up communicates main exhaust column respectively, and the one end that main exhaust column kept away from quick-witted case is linked together with the air intake of steel shot material recoverer, sets up at the bottom of steel shot material recoverer and lets out the ball mouth.
4. A hoist chain multi-station continuous shot blasting apparatus according to claim 3, wherein: the multi-pulse multi-layer filter bag dust collection system comprises a dust collection fan, a multi-pulse generator, a pulse controller connected with the multi-pulse generator through an electric signal, and a multi-layer filter bag, wherein the multi-layer filter bag is communicated with a steel shot material recoverer through an exhaust pipe, a bag opening of the multi-layer filter bag is communicated with an air suction opening of the dust collection fan, an air exhaust opening of the dust collection fan discharges clean air to the outside through an exhaust pipe, and a dust exhaust opening is formed in the bottom end of the multi-layer filter bag.
5. The hoist chain multi-station continuous shot blasting apparatus of claim 4, characterized in that: the upper part of the pill dust separator is communicated with the main exhaust pipe through a dust conveying pipe.
6. The hoist chain multi-station continuous shot blasting apparatus of claim 4, characterized in that: the lower part of the pill dust separator is communicated with a crushed aggregates discharge pipe.
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| CN201910103568.9A CN109648039B (en) | 2019-01-23 | 2019-01-23 | Multi-station continuous shot blasting equipment for hoisting chain |
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| CN110016538A (en) * | 2019-05-27 | 2019-07-16 | 安吉长虹制链有限公司 | Tow chain processing technology for chain production |
| CN110791638B (en) * | 2019-11-23 | 2021-08-06 | 徐香娥 | Processing technology of trailer chain |
| CN111037477B (en) * | 2019-12-31 | 2021-09-14 | 绩溪山合机械有限公司 | Shot blasting equipment for chain machining |
| CN112025533A (en) * | 2020-09-17 | 2020-12-04 | 周开言 | Otolaryngology branch of academic or vocational study is with processing equipment of cutting |
| CN114367429A (en) * | 2021-12-21 | 2022-04-19 | 江苏亚星锚链股份有限公司 | Chain anti-corrosion treatment method |
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