CN108343435A - It is a kind of that there is the coalcutter for drawing running part double protecting device and its guard method - Google Patents
It is a kind of that there is the coalcutter for drawing running part double protecting device and its guard method Download PDFInfo
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- CN108343435A CN108343435A CN201810275011.9A CN201810275011A CN108343435A CN 108343435 A CN108343435 A CN 108343435A CN 201810275011 A CN201810275011 A CN 201810275011A CN 108343435 A CN108343435 A CN 108343435A
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- limit square
- square device
- coalcutter
- hauling
- wear
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- 230000002633 protecting effect Effects 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims description 10
- 238000012806 monitoring device Methods 0.000 claims abstract description 31
- 230000009467 reduction Effects 0.000 claims abstract description 30
- 238000005299 abrasion Methods 0.000 claims description 23
- 238000012544 monitoring process Methods 0.000 claims description 14
- 239000003245 coal Substances 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/04—Safety devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/24—Remote control specially adapted for machines for slitting or completely freeing the mineral
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Braking Arrangements (AREA)
- Retarders (AREA)
Abstract
A kind of coalcutter with traction running part double protecting device, including hauling ＆ running motor (1) and walking reduction box (2) and limit square device (4), the limit square device (4) connects hauling ＆ running motor (1) and walking reduction box (2) by torque axis (5), the limit square device (4) and the walking reduction box (2) are located at the heteropleural of the hauling ＆ running motor (1), it further include limit square device tool-wear monitoring device (3), the limit square device tool-wear monitoring device (3) is mounted between limit square device (4) and hauling ＆ running motor (1), limit square device tool-wear monitoring device (3) monitors that limit square device (4) reaches or close to after wear-out life, alarm signal can be sent to the coalcutter control terminal by limiting square device tool-wear monitoring device (3), and it links with hauling ＆ running motor and sends stoppage protection signal.
Description
Technical field
The present invention relates to a kind of coalcutter more particularly to a kind of coalcutters with traction running part protective device.
Background technology
Currently, the failure rate of coalcutter in use is higher, referring to Fig. 1, the coal mining that the prior art provides is shown
Machine running part is driven the section view graph structure of output mechanism.As shown, the Walk Part of Shearer power take-off mechanism includes：It is electronic
Machine 1 and walking reduction box 2.Motor 1 is directly connected to the high speed shaft end of walking reduction box, motor using the gear way of output
Output shaft is located at coalcutter close to walking reduction box side, and protected mode is motor electic protection.By long-term observation and reality
Border operation feedback is it is found that down-hole coal excavation machine travel running part gear-box damage at present is frequent, and the working space of underground is narrow, electricity
For machine output shaft on the inside of coalcutter, each maintenance needs dismantle motor so that and it is very inconvenient for the maintenance of coalcutter, cause existing
There is coalcutter the reason of high failure rate occur, for mainly its structure there are still some defects, main following points are insufficient：
1) traction running part motor is directly output to walking reduction box high gear, and electrical overloads protection lag causes to go
It is frequent to walk reduction box damage；
2) cutting depth and the speed of travel are all by manual or wireless remotecontrol when coalcutter feed cutting coal
Operation, worker do not account for the hardness and roller depth of cut and the speed of travel of cutting object adequately, cause to cut
The opposition that entire coalcutter is subject to when cutting is excessive and is damaged to entire shearer haulage running part；
3) for coalcutter when walking on scrapper conveyor since underground work condition is more severe, driving wheel often has generation
Clamping stagnation scene occur, cause itself huge inertia of entire coalcutter all to impact walking reduction box, cause driving wheel with
And the walking unnecessary damage of reduction box, and since this operating mode belongs to accident, operating process needs to use special work
Walking monitoring is carried out as security official, increase staff's danger and increases labor intensity, wastes human resources.
In order to solve the problems, such as that above-mentioned easily damaged and repair is inconvenient, CN203175558U discloses a kind of continuous coal mining
Machine cutting speed reducer torque deceleration mechanism, including cutting motor, friction limit square device, torque axis and cutting speed reducer, cutting
The armature spindle of motor is hollow shaft, and a torque axis is equipped in armature spindle, and the output end of armature spindle is limited by external splines and friction
The input unit of square device connects, and one end of torque axis is connect by external splines with the output device of friction limit square device, torque axis
The other end is connect by external splines with the input terminal of cutting speed reducer.In this way, limit square device is used for protective effect, meanwhile, limit square device
It is arranged on the outside of motor, is convenient for detachable maintaining, still, such protective device is still insufficient, this is because through
Cross inventor for a long time observation and summarize, find limit square device wear-out life it is often limited, limit square device setting torque value with
Usage time increase, protecting effect can decay, to cause protective effect insufficient.
Therefore, it is necessary to a kind of protection techniques of the new traction running part for coalcutter, can be for a long time to coalcutter
Traction running part is protected, and is realized the effective protection to coalcutter in any case any time, is avoided damaging.
Invention content
In view of this, the present invention proposes a kind of traction running part double protecting device for coalcutter, including it is dual
Torque limiting device is protected, the traction walking reduction box and hauling ＆ running motor of the coalcutter are connected to, it is described by monitoring in real time
The torque loads that walking reduction box is born, to control power transmission of the traction electric machine to traveling speed reducer.
An embodiment according to the present invention provides a kind of coalcutter with traction running part double protecting device, packet
Hauling ＆ running motor (1) and walking reduction box (2) and limit square device (4) are included, the limit square device (4) is connected by torque axis (5)
Hauling ＆ running motor (1) and walking reduction box (2), the limit square device (4) and the walking reduction box (2) separation are walked in traction
Motor (1) both sides, when reduction box (2) of walking is encountered more than setting torque value, limit square device (4) carries out torque protection, and walking subtracts
Fast case is only transmitted by the torque to setting torque, and impulsive torque is absorbed by limit square device (4), it is characterised in that：It further include limit
Square device tool-wear monitoring device (3), the limit square device tool-wear monitoring device (3) are mounted on limit square device (4) and hauling ＆ running motor (1)
Between, limit square device tool-wear monitoring device (3) monitors that limit square device (4) reaches or close to after wear-out life, limits square device wear monitoring
Device (3) can send alarm signal to the coalcutter control terminal, and link with hauling ＆ running motor and send stoppage protection letter
Number.
According to another embodiment of the present invention, the big splined end of limit square device (4) passes through spline form and hauling ＆ running motor (1)
Connection, and be fixed on hauling ＆ running motor (1) output spline, small splined end and the torque axis (5) of limit square device (4) pass through flower
Key-shaped formula connects, and another splined end of torque axis (5) is connect with walking reduction box (2).
An embodiment according to the present invention, limit square device tool-wear monitoring device (3) includes locating ring (6), wears follower peg
(7), preloading spring (8), spline end plate (9), friction plate (10), friction plate (11), sensor (12), locating ring (6) setting exist
One end of follower peg (7) is worn, abrasion follower peg (7) realizes abrasion follower peg (7) by the diameter bore on spline end plate (9)
The other end be connected to the outer end face of friction plate, the inner face of friction plate is in contact with friction plate (11), on spline end plate (9)
Diameter bore in be provided with preloading spring (8), for that will wear the other end conflict of follower peg (7) to the outer end of friction plate
Face, sensor (12) are mounted on by fixing bracket on hauling ＆ running motor (1) end face.
An embodiment according to the present invention, the limit square device tool-wear monitoring device (3) includes two sensors (12), described
Two sensors (12) are installed with symmetrical position, to avoid judging problem by accident caused by friction plate unbalance stress.
An embodiment according to the present invention, the sensor (12) are proximity sensor.
An embodiment according to the present invention, the limit square device tool-wear monitoring device (3) includes current monitoring control unit, right
The electric current of hauling ＆ running motor (1) corresponds to control response in real time.
An embodiment according to the present invention, the current monitoring control unit are wireless control, make the protection of limit square device (4)
Linkage is realized with the normal use of hauling ＆ running motor (1).
An embodiment according to the present invention provides a kind of method that coalcutter carries out duplicate protection, it is characterised in that：With
Friction plate (11) with respect to skid abrasion and thickness is thinning, under the pressure of preloading spring (8), abrasion follower peg (7) pre-
It follows friction plate (10) to move with using toward wear-side under the pressure of tight spring 8, while driving and being fixed on abrasion follower peg (7)
On locating ring (6) shrink inward, sensor (12) realizes the degree of wear by monitoring the positions of locating ring (6) in real time
Detection.
An embodiment according to the present invention provides a kind of method that coalcutter carries out duplicate protection, it is characterised in that：Limit
After square device tool-wear monitoring device (3) monitors that limit square device (4) reaches wear-out life, limit square device tool-wear monitoring device (3) can be to institute
It states coalcutter control terminal and sends alarm signal, and link with hauling ＆ running motor and send stoppage protection signal.
An embodiment according to the present invention provides a kind of method that coalcutter carries out duplicate protection, it is characterised in that：Only
When the left and right sides sensor simultaneously receive signal, retransmit stopping signal to movable motor (1) come realize reliable shutdown protect,
Avoid erroneous judgement problem caused by friction plate unbalance stress.
Description of the drawings
Attached drawing 1 shows the section view graph structure of the traction running part power output of the coalcutter of the prior art；
Attached drawing 2 shows the front view knot for the Walk Part of Shearer transmission output mechanism that first embodiment of the invention provides
Structure；
Attached drawing 3 is the section view graph structure of the Walk Part of Shearer transmission output mechanism provided shown in Fig. 2；
Attached drawing 4 is the Walk Part of Shearer limit square device wear monitoring linkage mechanism enlarged partial sectional view provided shown in Fig. 3
Structure.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
According to the long-term observation and summary of inventor, it is found that the wear-out life of limit square device 4 is limited, limit square device is with making
With the increase of time and wear extent, protecting effect can decay, and inventive concept of the invention is exactly to put forward for the defect,
Setting limit square device tool-wear monitoring device 3 on square device 4 and hauling ＆ running motor 2 is limited, when monitoring that the abrasion of limit square device 4 reaches setting
When threshold value, limit square device tool-wear monitoring device 3 gives 1 latch signal of hauling ＆ running motor, and hauling ＆ running motor cuts off self-lock protection, really
Limit square device is protected not because abrasion torque decaying causes continued wear to fail, realizes electric security protector.
Referring to Fig. 2, the main view graph structure of Walk Part of Shearer transmission output mechanism provided by the invention is shown.As schemed
Show, which includes：Square device tool-wear monitoring device 3 is limited to be arranged in limit square device (4) and traction row
Between walking motor (1), limit square device 4 is connected to by torque axis 5 between hauling ＆ running motor 1 and walking reduction box 2, limit square device 4
It is located at walking reduction box homonymy with hauling ＆ running motor, in the technical scheme, limit square device 4 preferentially turns round walking reduction box
Square setting protection, when reduction box of walking is encountered more than setting torque value, limit square device 4 carries out torque protection, and walking reduction box is only
It is transmitted by the torque to setting torque, impulsive torque is absorbed by limit square device 4, this provides first and protects again, with time limit square
Device tool-wear monitoring device 3 controls signal to movable motor 1 and carries out power-off duplicate protection, realizes limit square device 4 and hauling ＆ running motor 1
Linkage protection, to realize that second protects again.
Referring to Fig. 3,4 big splined end of limit square device is connect by spline form with hauling ＆ running motor 1, and is fixed on traction row
Walk on 1 output spline of motor, the small splined end of limit square device 3 is connect with torque axis 5 by spline form, torque axis 5 it is another
Splined end is connect with walking reduction box 2, is exported change direction arrangement by hauling ＆ running motor, is realized that maintenace point is located at coalcutter
Side is controlled, General Maintenance and maintenance are convenient for.
Referring to diagram 4, the following detailed description of the limit square device tool-wear monitoring device 3 in the application, limit square device wear monitoring dress
It includes locating ring 6 to set 3, wears follower peg 7, preloading spring 8, spline end plate 9, friction plate 10, friction plate 11, sensor 12.It is fixed
Position ring 6 is arranged in one end of abrasion follower peg 7, and abrasion follower peg 7 realizes that abrasion is servo-actuated by the diameter bore on spline end plate 9
The other end of pin 7 is connected to the outer end face of friction plate, and the inner face of friction plate is in contact with friction plate 11, on spline end plate 9
Diameter bore in be provided with preloading spring, for will wear follower peg 7 the other end conflict to friction plate outer end face.Sensing
Device 12 is installed to by fixing bracket on the end face of hauling ＆ running motor so that the position that sensor 12 stretches out will cross locating ring
6, the distance for leaving locating ring 6 is the wear-out life threshold value of setting.In preferred mode, 10% residue can be further reserved
Amount, to do sth. in advance a point discovery wear-out life relatively, rather than has waited until that wear-out life can just be known.
Locating ring 6 is detected in real time by sensor 12, when limiting square device generation normal operating of protection, limits square device
Internal friction piece 11 can be rotated relative to opposite skid of friction plate 10, opposite with friction plate 11 thus shock isolation load
It skids and wears and thickness is thinning, in limiting square device under the pressure of preloading spring 8, be mounted on limit square device input spline end plate 9
Abrasion follower peg 7 followed under the pressure of preloading spring 8 friction plate 10 with use toward wear-side move, while drive be fixed on
Locating ring 6 in abrasion follower peg 7 is shunk inward, and when locating ring 6 is by sensor 12, sensor 12 generates sensing letter
Number, and then realize degree of wear detection.By limiting the real-time monitoring of square device tool-wear monitoring device 3, when locating ring 6 is by sensor 12
It monitors to have arrived at monitoring location namely predetermined attrition value, illustrates that limiting square device 4 has reached wear-out life, or
Wear-out life has been approached, limit square device 4 is needed replacing or has been paid attention to.Limit square is monitored for limit square device tool-wear monitoring device 3
After device 4 reaches wear-out life, limit square device tool-wear monitoring device 3 can send alarm signal to coalcutter control terminal, and with traction
Movable motor linkage sends stoppage protection signal.
The above embodiment limits square device failure after can having solved the problems, such as abrasion to be solved by this invention, still,
Inventor is found that new problem again, may cause to limit square device abrasion prison due to the vibrations of limit square device or unbalance stress, occasional
The protection signal that device 3 sends out mistake is surveyed, production efficiency is inevitably affected, may be led to solve above-mentioned unbalance stress
The offset issue of cause inventors herein proposes the technical solution further improved, uses two sensors 12 with symmetrical position
Mounting means, only when the sensor of the left and right sides simultaneously receive signal, retransmit stopping signal to hauling ＆ running motor 1 to realize
Reliable shutdown is protected, and erroneous judgement problem caused by friction plate unbalance stress is thus effectively prevented.
In the above-mentioned technical solutions, limit square device tool-wear monitoring device 3, such as proximity sensor can be used.Meanwhile limiting square device
Tool-wear monitoring device 3 may include current monitoring control unit, and control response is corresponded in real time to the electric current of hauling ＆ running motor 1, also
Can be wireless control, the normal use of the protection and hauling ＆ running motor 1 that make limit square device 4 realizes linkage.
In the above-mentioned technical solutions, hauling ＆ running motor 1 can be conventional motor, or variable-frequency motor.
Technical scheme of the present invention is described in detail in the figures above, it is contemplated that in the related technology, for shearer haulage row
The protection for walking portion is insufficient, easily causes the damage of walking reduction box and driving wheel, and therefore, the present invention provides one kind for mining
Machine travel running part double protecting device and a kind of coalcutter, the torque that can be subject in the traction running part of coalcutter are excessive
When, stop traction walking motion in time and avoids damaging to carry out effective protection to coalcutter.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the present invention can have various change and change.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of coalcutter with traction running part double protecting device, including hauling ＆ running motor (1) and walking reduction box
(2) and limit square device (4), the limit square device (4) connect hauling ＆ running motor (1) and walking reduction box by torque axis (5)
(2), the limit square device (4) and the walking reduction box (2) separation are in the both sides of hauling ＆ running motor (1), when walking reduction box
(2) when encountering more than setting torque value, limit square device (4) carries out torque protection, and walking reduction box is only by the power to setting torque
Square transmits, and impulsive torque is absorbed by limit square device (4), it is characterised in that：Further include limit square device tool-wear monitoring device (3), it is described
It limits square device tool-wear monitoring device (3) to be arranged between the limit square device and the hauling ＆ running motor, the limit square device abrasion prison
It surveys device (3) and monitors that limit square device (4) reaches or close to after wear-out life, limit square device tool-wear monitoring device (3) can be adopted to described
Coal machine control terminal sends alarm signal, and links with hauling ＆ running motor and send stoppage protection signal.
2. the coalcutter with traction running part double protecting device according to claim 1, it is characterised in that：Limit square device
(4) big splined end is connect by spline form with hauling ＆ running motor (1), and is fixed on hauling ＆ running motor (1) output spline
On axis, the small splined end of limit square device (4) is connect with torque axis (5) by spline form, another splined end and row of torque axis (5)
Walk reduction box (2) connection.
3. the coalcutter with traction running part double protecting device according to claim 1 or 2, it is characterised in that：Limit
Square device tool-wear monitoring device (3) includes locating ring (6), abrasion follower peg (7), preloading spring (8), spline end plate (9), friction plate
(10), friction plate (11), sensor (12), in one end of abrasion follower peg (7), abrasion follower peg (7) is logical for locating ring (6) setting
The diameter bore crossed on spline end plate (9) realizes that the other end of abrasion follower peg (7) is connected to the outer end face of friction plate, friction plate
Inner face be in contact with friction plate (11), preloading spring is provided in the diameter bore on spline end plate (9), for will grind
The other end conflict of follower peg (7) is damaged to the outer end face of friction plate, sensor (12) is mounted on traction by fixing bracket and walks
On motor (1) end face, and locating ring (6) is crossed in the position that sensor (12) stretches out.
4. the coalcutter with traction running part double protecting device according to claim 3, it is characterised in that：The biography
Sensor (12) includes two, and described two sensors are installed with symmetrical position, to avoid erroneous judgement problem.
5. the coalcutter with traction running part double protecting device according to claim 1 or 2 or 4, it is characterised in that：
The limit square device tool-wear monitoring device (3) is proximity sensor.
6. the coalcutter with traction running part double protecting device according to claim 1 or 2 or 4, it is characterised in that：
The limit square device tool-wear monitoring device (3) includes current monitoring control unit, is corresponded in real time to the electric current of hauling ＆ running motor (1)
Control response.
7. the coalcutter with traction running part double protecting device according to claim 6, it is characterised in that：The electricity
Stream monitoring and controlling unit is wireless control, and the normal use of the protection and hauling ＆ running motor (1) that make limit square device (4) realizes connection
It is dynamic.
8. a kind of method that the coalcutter of any claim carries out duplicate protection in 3-7 using claim, it is characterised in that：
With friction plate (11) with respect to skid abrasion and thickness is thinning, under the pressure of preloading spring (8), abrasion follower peg (7) exist
It follows friction plate (10) to move with using toward wear-side under the pressure of preloading spring (8), while driving that be fixed on abrasion servo-actuated
Locating ring (6) on pin (7) is shunk inward, and sensor (12) realizes abrasion journey by monitoring locating ring (6) position in real time
Degree detection.
9. a kind of method that the coalcutter of any claim carries out duplicate protection in 1-7 using claim, it is characterised in that：
After limit square device tool-wear monitoring device (3) monitors that limit square device (4) reaches wear-out life, limit square device tool-wear monitoring device (3) can be to
The coalcutter control terminal sends alarm signal, and links with hauling ＆ running motor and send stoppage protection signal.
10. a kind of method that the coalcutter of any claim carries out duplicate protection in 4-7 according to claim, feature exist
In：Only when the sensor of the left and right sides simultaneously receive signal, retransmit stopping signal to movable motor (1) to realize reliable shutdown
Protection, avoids erroneous judgement problem caused by friction plate unbalance stress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275011.9A CN108343435B (en) | 2018-03-30 | 2018-03-30 | Coal mining machine with traction traveling part double protection device and protection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275011.9A CN108343435B (en) | 2018-03-30 | 2018-03-30 | Coal mining machine with traction traveling part double protection device and protection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108343435A true CN108343435A (en) | 2018-07-31 |
| CN108343435B CN108343435B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810275011.9A Active CN108343435B (en) | 2018-03-30 | 2018-03-30 | Coal mining machine with traction traveling part double protection device and protection method thereof |
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