CN201110286Y - Compound oil cylinder - Google Patents
Compound oil cylinder Download PDFInfo
- Publication number
- CN201110286Y CN201110286Y CNU200720046771XU CN200720046771U CN201110286Y CN 201110286 Y CN201110286 Y CN 201110286Y CN U200720046771X U CNU200720046771X U CN U200720046771XU CN 200720046771 U CN200720046771 U CN 200720046771U CN 201110286 Y CN201110286 Y CN 201110286Y
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- oil
- guide head
- oil guide
- cylinder
- piston
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Abstract
The utility model discloses a compound cylinder which has simple structure and convenient control and can change the material-pushing frequency and the material-pushing travel of centrifugal machines, which comprises a cylinder body, wherein a cavity is arranged in the cylinder, a piston is rotationally arranged in the cavity and separates the cavity into a left and a right cavities, an oil guide head core is arranged on the open end of the left cavity on the cylinder body, a stroke lever and a push rod are respectively arranged on both ends of the piston, wherein the stroke lever is crossly arranged in the oil guide head core, the push rod is crossly arranged in a hollow spindle which is mutually fixed with the cylinder body, an oil guide head body is rotationally sleeved on the outer wall of the oil guide head core, two oil ports are arranged on one side of the oil guide head body, the oil guide head body is fixed on a stand, two oil transportation channels which are respectively communicated with the two oil ports and the left and the right cavities of the oil cylinder are arranged in the oil guide head body and the cylinder body, and a closing joint is arranged on the outside of the stroke lever. The compound cylinder enlarges the using scope and improves the operation dependability of the piston material-pushing centrifugal machine.
Description
Technical field
The utility model relates to a kind of composite oil cylinder that is used for piston push centrifuge.
Background technique
Piston material pushing formula centrifuge is dried with its filter cake, characteristics such as quality is pure, output is big, continuous running have obtained utilization widely.In order to realize continuous pusher, the pusher dish of piston material pushing formula centrifuge is except rotating with speed in the same way with rotary drum, and also reciprocating vertically, this normally realizes by hydraulic jack.The push rod that is arranged on piston one side end be located in cylinder body and with the fixing hollow spindle of cylinder body in; The end of hollow spindle is connected with the rotary drum of centrifuge, and the push rod in the hollow spindle is connected with pusher dish in the rotary drum, and cylinder block is connected with piston with guide rod or lateral pin.Its working procedure is: drive by belt in cylinder block, hollow spindle and the drum rotating process at motor, piston in the oil cylinder is along with cylinder block rotates together, simultaneously, piston does reciprocating linear motion together with push rod and the pusher dish that is arranged on the push rod under the promotion of hydraulic oil.In this process, the oil path control system of the hydraulic jack in the piston material pushing formula centrifuge is to guarantee that centrifuge is continuous, the key of stable operation.Initial hydraulic system is made up of some independent valve members and pipeline, and system disperses to leak easily.Adopting composite oil cylinder and multiple throte valve is a significant improvement of piston material pushing formula centrifuge, has saved a large amount of pipelines, compact structure, and the stability of work improves.But the commutation of piston radially slides the change oil circuit along inner valve stem and realizes that noise is big by commutation valve rod bump oil cylinder end face, outer valve rod in this oil cylinder, and the vibration that eccentric load causes is also big; In addition, owing to be clearance seal between piston and the oil cylinder, internal leakage is serious, so only be suitable for the system of big flow low oil pressure.After this, change piston into the guiding valve commutation that endwisely slips, since still clearance seal between piston and the oil cylinder, the main shaft middle part oil distributor oil-feed mode of employing, system's internal and outernal leakage is still very serious, and the oil cylinder volume is big, also only is suitable for the system of big flow low oil pressure.On piston, set up organic piston ring later on again, adopt oil cylinder rear portion oil transportation mode, dwindled the oil cylinder volume, improved system oil pressure,, have to adopt complex structure, the high motive sealing form of required precision in order to keep the block bearing at system oil pressure, lubricated rear portion.In a word, the structure of these composite oil cylinders is all too complicated, make manufacturing, assembling difficulty increase, raising along with centrifuge speed, wearing and tearing between the counterpart strengthen, day-to-day maintenance increases, and the hydraulic system of said structure can only regulate the pusher frequency of centrifuge, can't change the pusher stroke of centrifuge.
The model utility content
Technical problem to be solved in the utility model is: a kind of simple in structure, control is convenient and can change the composite oil cylinder of centrifuge pusher frequency and pusher stroke.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of simple in structure, control is convenient and can change the composite oil cylinder of centrifuge pusher frequency and pusher stroke, comprise: cylinder body, be provided with cavity in the cylinder body, the piston that is movably arranged in the cavity is separated into left and right two chambeies with cavity, opening end in left chamber on the cylinder body is provided with Oil Guide head core, the two ends of piston are respectively arranged with stroke lever and push rod, stroke lever is located in the Oil Guide head core, push rod be located in cylinder body and the hollow spindle that fixes with cylinder body in; Movable sheath is provided with Oil Guide head body on the outer wall of Oil Guide head core, and a side of Oil Guide head body is provided with two hydraulic fluid ports, and Oil Guide head body is fixed on the support, is provided with two oil transportation channels that are communicated with two hydraulic fluid ports and the left and right chamber of oil cylinder respectively in Oil Guide head core and the cylinder body; The arranged outside of stroke lever has near head.
Also be provided with an axial guide rod in above-mentioned cylinder body and the Oil Guide head core, the piston activity is located on this root guide rod.
Above-mentioned Oil Guide head body is movably set on the Oil Guide head core by bearing.
The beneficial effects of the utility model are: the utility model has been simplified the structure of composite oil cylinder greatly, the Oil Guide head body that is provided with the hydraulic oil import and export maintains static, sealing is easy and reliable, has reduced the inside and outside leakage of hydraulic system, helps the reduction means volume and improves system oil pressure; Overhanging stroke lever can be adjusted the pusher stroke, has enlarged the using scope and the operating reliability of piston push centrifuge.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1, push rod 2, hollow spindle, 3, cylinder body, 31, left chamber, 32, right chamber, 33, cross oil-piping, 4, piston, 6, bearing, 7, Oil Guide head body, 8, Oil Guide head core, 81, first oil transport pipeline radially, 82, second oil transport pipeline radially, the 83, the 3rd oil transport pipeline radially, 84, the first axial oil transport pipeline, 85, the second axial oil transport pipeline, 9, stroke lever, 91, limited ring, 92, near head, 10, first near switch, 11, second near switch, 12, first hydraulic fluid port, 13, second hydraulic fluid port, 14, guide rod, 15, motor.
Embodiment
Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.
As shown in Figure 1, a kind of composite oil cylinder described in the utility model, comprise: cylinder body 3, be provided with cavity in the cylinder body 3, the piston 4 that is movably arranged in the cavity is separated into left chamber 31 and right chamber 32 with cavity, be provided with the organic piston ring that is used for the sealing of the cavity of cylinder body 3 in the circular groove of piston 4, opening end in left chamber 31 on the cylinder body 3 is provided with Oil Guide head core 8, and (Oil Guide head core 8 has double action: first effect is to serve as end cap, be used for the sealing in left chamber 31, another effect is that oil circuit is set), the two ends of piston 4 are respectively arranged with stroke lever 9 and push rod 1, stroke lever 9 is located in the Oil Guide head core 8, push rod 1 be located in cylinder body 3 and the hollow spindle 2 that fixes with cylinder body 3 in; Be provided with Oil Guide head body 7 by pair of bearings 6 movable sheaths on the outer wall of Oil Guide head core 8, the sidepiece of Oil Guide head body 7 is provided with first hydraulic fluid port 12 and 13 two hydraulic fluid ports of second hydraulic fluid port, in Oil Guide head core 8 and the cylinder body 3 the two-way oil transportation channel is set, radially form by oil transport pipeline 81 and the first axial oil transport pipeline 84 by first in the Oil Guide head core 8 that communicates for first oil transportation channel, first radially oil transport pipeline 81 communicate with first hydraulic fluid port 12, the first axial oil transport pipeline 84 communicates with left chamber 31, second oil transportation channel by second in the Oil Guide head core 8 that communicates radially oil transport pipeline 82 and the second axial oil transport pipeline 85 and the 3rd radially the oil-piping 33 of crossing in oil transport pipeline 83 and the cylinder body 3 form, second radially oil transport pipeline 82 communicate with second hydraulic fluid port 13, cross oil-piping 33 and be connected with right chamber 32; The outboard end of described stroke lever 9 is provided with limited ring 91, and limited ring 91 is provided with approaching 92.Described Oil Guide head body 7 is fixed on the centrifuge support usually; Also be provided with an axial guide rod 14 in the described piston 4, guide rod 14 activities are located in the Oil Guide head core 8.During practical application, can be provided with near 92 course a pair of with matchingly near switch 10 and 11, this is to linking to each other with the 3-position 4-way electromagnetic switch valve controling circuit of control oil channel with 11 near switch 10; First hydraulic fluid port 12 and second hydraulic fluid port 13 link to each other with the throttle valve of oil pipe and control oil channel commutation, 3-position 4-way solenoid directional control valve, oil sump etc. respectively.
Working principle of the present utility model is: motor 15 rotates together by the rotary drum that belt drives in cylinder body 3, Oil Guide head core 8 and hollow spindle 2 and the centrifuge; Cylinder body 3 rotates together by the pusher dish that guide rod 14 drives in piston 4 and push rod 1 and the bowl; When stroke lever 9 move near switch 11 near 92 the time, send instruction near switch, 3-position 4-way electromagnetic switch valve events, make hydraulic oil from oil sump through selector valve, throttle valve is from hydraulic fluid port 12 oil-feeds of Oil Guide head body 7, hydraulic fluid oil is along hydraulic fluid port 12, radially oil transport pipeline 81 and the first axial oil transport pipeline 84 constantly enter in the left chamber 31 via first, meanwhile, hydraulic fluid oil in the right chamber 32 is then via crossing oil-piping 33, the 3rd oil transport pipeline 83 radially, the second axial oil transport pipeline 85 and second radially oil transport pipeline 82 continuously outflows hydraulic fluid port 13, through throttle valve, selector valve flows back in the oil sump, and piston 4 just moves under the promotion of hydraulic fluid oil like this, make that push rod 1 is extrapolated; When moving near switch 10 (being the right dead point of piston 4 strokes) of stroke lever 9 near 92, the oil circuit control circuit sends instruction, the commutation of 3-position 4-way solenoid directional control valve, and the flow direction of the hydraulic oil just in time flow direction with above-mentioned is opposite, make push rod 1 inwardly withdraw, do not repeat them here.Like this, just realized the reciprocal pusher process of push rod 1.
The utility model has been simplified the structure of composite oil cylinder greatly, and the Oil Guide head body 7 that is provided with hydraulic fluid port 12 and 13 maintains static, and sealing is easy and reliable, has reduced the inside and outside leakage of hydraulic system, helps dwindling the oil cylinder volume and improves system oil pressure; The utility model is provided with the two-way oil transportation channel, and be provided with stroke lever 9 with push rod 1 a relative side on the piston 4, stroke lever 9 is provided with approaching 92, making can be a pair of with matching near switch 10 and 11 by being provided with on approaching 92 course, by oil circuit control circuit, the ducted solenoid directional control valve of control setting between hydraulic fluid port and oil sump that links to each other near switch 10 and 11 being changed the trend of oil with this, promote piston 4 and move to the left or to the right, thus the reciprocal pusher process of realization push rod 1; And can control very convenient by changing this to regulate the stroke of push rod 1 near the relative position of switch 10 and 11; In addition, owing to adopted two hydraulic fluid port turnover hydraulic oil of fixed Oil Guide head body 7, make the sealing of whole hydraulic system simple and easy reliable, help improving operating oil pressure, thereby can in a big way, adjust the pusher frequency of centrifuge by changing oil pressure, be particularly advantageous in some feed separation and need have enlarged the using scope and the operating reliability of piston push centrifuge by improving the occasion that the pusher frequency strengthens centrifuge processing amount.
Claims (3)
1. composite oil cylinder, comprise: cylinder body, be provided with cavity in the cylinder body, the piston that is movably arranged in the cavity is separated into left and right two chambeies with cavity, it is characterized in that: the opening end in left chamber on the cylinder body is provided with Oil Guide head core, the two ends of piston are respectively arranged with stroke lever and push rod, and stroke lever is located in the Oil Guide head core, push rod be located in cylinder body and the hollow spindle that fixes with cylinder body in; Movable sheath is provided with Oil Guide head body on the outer wall of Oil Guide head core, and a side of Oil Guide head body is provided with two hydraulic fluid ports, is provided with two oil transportation channels that are communicated with two hydraulic fluid ports and the left and right chamber of oil cylinder respectively in Oil Guide head core and the cylinder body; The arranged outside restraining position ring block of described stroke lever, limited ring is provided with near head.
2. composite oil cylinder as claimed in claim 1 is characterized in that: also be provided with an axial guide rod in described cylinder body and the Oil Guide head core, the piston activity is located on this root guide rod.
3. composite oil cylinder as claimed in claim 1 or 2 is characterized in that: described Oil Guide head body is movably set on the Oil Guide head core by bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720046771XU CN201110286Y (en) | 2007-09-18 | 2007-09-18 | Compound oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720046771XU CN201110286Y (en) | 2007-09-18 | 2007-09-18 | Compound oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201110286Y true CN201110286Y (en) | 2008-09-03 |
Family
ID=39894816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200720046771XU Expired - Lifetime CN201110286Y (en) | 2007-09-18 | 2007-09-18 | Compound oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201110286Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140002B (en) * | 2007-09-18 | 2012-01-25 | 江苏牡丹离心机制造有限公司 | Compound oil cylinder |
| CN102635605A (en) * | 2012-04-27 | 2012-08-15 | 深圳市华星光电技术有限公司 | Safety pin |
| CN102773171A (en) * | 2012-08-07 | 2012-11-14 | 江苏华大离心机股份有限公司 | Hydraulic pushing driving device in piston pushing centrifuge |
| CN104368454A (en) * | 2014-11-26 | 2015-02-25 | 四川北方硝化棉股份有限公司 | Front guide sleeve lubricating system of piston pushing centrifugal acid drive machine |
-
2007
- 2007-09-18 CN CNU200720046771XU patent/CN201110286Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101140002B (en) * | 2007-09-18 | 2012-01-25 | 江苏牡丹离心机制造有限公司 | Compound oil cylinder |
| CN102635605A (en) * | 2012-04-27 | 2012-08-15 | 深圳市华星光电技术有限公司 | Safety pin |
| CN102773171A (en) * | 2012-08-07 | 2012-11-14 | 江苏华大离心机股份有限公司 | Hydraulic pushing driving device in piston pushing centrifuge |
| CN102773171B (en) * | 2012-08-07 | 2013-09-11 | 江苏华大离心机股份有限公司 | Hydraulic pushing driving device in piston pushing centrifuge |
| CN104368454A (en) * | 2014-11-26 | 2015-02-25 | 四川北方硝化棉股份有限公司 | Front guide sleeve lubricating system of piston pushing centrifugal acid drive machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20080903 Effective date of abandoning: 20070918 |