CN110242296B - Locking device for clutch mechanism of coal mining machine - Google Patents
Locking device for clutch mechanism of coal mining machine Download PDFInfo
- Publication number
- CN110242296B CN110242296B CN201910645085.1A CN201910645085A CN110242296B CN 110242296 B CN110242296 B CN 110242296B CN 201910645085 A CN201910645085 A CN 201910645085A CN 110242296 B CN110242296 B CN 110242296B
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- limiting rod
- positioning
- groove
- clutch mechanism
- cylinder body
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- 239000003245 coal Substances 0.000 title abstract description 21
- 238000005065 mining Methods 0.000 title abstract description 18
- 238000000926 separation method Methods 0.000 claims abstract description 16
- 230000000670 limiting effect Effects 0.000 claims description 60
- 238000002955 isolation Methods 0.000 claims description 32
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 16
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
- E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down 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
-
- 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
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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)
- Mechanical Operated Clutches (AREA)
Abstract
The invention relates to a locking device of a clutch mechanism of a coal mining machine, which comprises a sleeve cup, a flexible shaft, a separation seat, an auxiliary plate and a bolt mechanism, wherein the sleeve cup and the flexible shaft are coaxially arranged, the inner wall of the sleeve cup is provided with a front radial annular groove and a rear radial annular groove and one or more axial grooves, the axial grooves are communicated with the radial annular grooves, the center of the separation seat is coaxially sleeved and fixed on the flexible shaft, a boss which radially extends outwards on the separation seat can rotate in the radial annular grooves and slide forwards and backwards in the axial grooves, the auxiliary plate is arranged behind the radial annular groove which is positioned forwards, the front end surfaces of the auxiliary plate and the sleeve cup are respectively provided with a positioning groove or a positioning hole, each positioning groove or each positioning hole is not positioned in the same radial direction with any axial groove, and the bolt mechanism arranged on the separation seat can backwards pass through a through hole on the separation seat to be inserted into the positioning groove or the positioning hole under the action of spring force. The invention can effectively and comprehensively solve the locking problem of the clutch mechanism of the coal mining machine and reduce the potential safety hazard of the coal mining working face.
Description
Technical Field
The invention relates to a locking device for a clutch mechanism of a coal mining machine, and belongs to the technical field of coal mining machine clutch.
Background
As a main large part of the roller coal mining machine, the left rocker arm and the right rocker arm drive the roller to rotate for coal cutting, wherein the clutch mechanism controls the connection and separation of the driving motor and the transmission system through the axial movement of the flexible shaft. The flexible shaft is connected with the driving motor and the transmission system through a spline. When the flexible shaft is driven to move to a position by the clutch mechanism handle, the spline of the flexible shaft is meshed with the spline of the transmission system, namely, the state that the driving motor is connected with the transmission system is achieved, and the motor drives the roller to rotate by the transmission system; when the flexible shaft is driven to move to another position by the handle, the spline of the flexible shaft is separated from the spline of the transmission system, namely, the driving motor is separated from the transmission system, and the motor cannot drive the transmission system and the roller at the moment.
For the problem of locking the position of the flexible shaft in the two states, it is common practice to machine a radial annular groove at two axial positions respectively, and design a separating seat on the flexible shaft at the same time, wherein the positions of the two radial annular grooves correspond to the axial positions of the flexible shaft in the two states respectively. When the flexible shaft moves to a certain position, the flexible shaft is limited in the axial direction after the rotary isolation seat enters one of the radial annular grooves. The method is free from problems under the conditions of stable working and small vibration of the coal mining machine, but when the coal quality is hard or faults are encountered, the coal cutting vibration of the coal mining machine is large, the clutch mechanism isolation seat can gradually rotate under the action of frequent large vibration, and when the clutch mechanism isolation seat rotates to an angular position capable of axially separating from the radial annular groove, the clutch mechanism isolation seat has no axial limiting effect. If the flexible shaft is automatically separated in the operation of the rocker arm, the flexible shaft and the transmission system are damaged, and the flexible shaft can fly out seriously, so that the personal safety of underground workers is endangered.
Disclosure of Invention
The invention aims to provide a locking device for a clutch mechanism of a coal mining machine, which can lock the position of the clutch mechanism of the coal mining machine in a 'off' state and a 'on' state, effectively and comprehensively solve the locking problem of the clutch mechanism of the coal mining machine and reduce the potential safety hazard of a coal mining working face in a pit.
The main technical scheme of the invention is as follows:
the utility model provides a coal-winning machine clutch mechanism locking device, includes sleeve cup, flexible axle, isolation seat, accessory plate, bolt mechanism and separation and reunion handle, sleeve cup and flexible axle coaxial arrangement, be equipped with two radial annular grooves and one or more axial slot around on the inner wall of sleeve cup, axial slot and two radial annular grooves intercommunication, the central coaxial sleeve of isolation seat is established and is fixed in the front portion of flexible axle, be equipped with one or more radial overhanging boss on the isolation seat, the boss can rotate in radial annular groove and in axial slot back and forth sliding, bolt mechanism includes barrel, fixed and seal the end cover of the front end of barrel, fore-and-aft direction runs through the gag lever post of barrel and precompressed in the barrel and cover on the gag lever post, the rear end laminating of barrel is fixed on the preceding terminal surface of isolation seat, the corresponding position on the isolation seat is provided with a through hole, the limit rod is provided with an annular boss, two ends of the spring are respectively abutted against the rear end face of the end cover and the front end face of the annular boss, the annular boss is positioned in the cylinder body and the rear end face is abutted against the front end face of the isolation seat in a natural state, the front end of the limit rod extends out of the cylinder body forwards, the rear end of the limit rod extends out of the isolation seat backwards through the through hole, the auxiliary plate is arranged behind the radial annular groove in the front, the front end face of the auxiliary plate and the inner side end face of the sleeve cup are respectively provided with one or a plurality of positioning grooves or positioning holes which are in plug-in fit with the rear end part of the limit rod at intervals in the circumferential direction, each positioning groove or positioning hole and any axial groove are not in the same radial direction, the clutch handle is arranged at the front end of the flexible shaft.
The maximum length of the rear end of the limiting rod, which can be inserted into the positioning groove or the positioning hole, is not greater than the working stroke of the spring.
The axial grooves can be arranged at 180 degrees in the circumferential direction, and the positioning grooves or the positioning holes are arranged in pairs and are symmetrically distributed relative to the connecting lines of the two axial grooves.
The front end of the limiting rod can be provided with a lifting handle.
One end of the lifting handle can be hinged with the limiting rod through a pin.
The part of the limiting rod, which is in front of the annular boss, is preferably of a stepped shaft structure with a thin front part and a thick rear part.
The cylinder body and the isolation seat can be welded and connected.
The end cover is preferably provided with external threads, the front section of the cylinder body is correspondingly provided with internal threads, and the end cover is in threaded connection with the cylinder body.
The positioning groove or the positioning hole on the auxiliary plate and the positioning groove or the positioning hole on the sleeve cup are not limited in position in the circumferential direction and can be the same or different.
The latter annular recess is preferably located axially next to the inner end face of the cup.
The beneficial effects of the invention are as follows:
the invention realizes reliable axial and circumferential position locking under the state of the flexible shaft spline and the spline connection of the transmission system, thereby avoiding the rotation of the isolation seat caused by vibration, avoiding the automatic separation of the flexible shaft in the operation of the rocker arm and remarkably improving the safety of equipment and operation.
Furthermore, since a reliable axial and circumferential position lock is still achieved in the state in which the flexible shaft is decoupled from the drive train, the safety risk in this state is avoided.
The invention can realize the position locking function of the clutch mechanism in the off state and the on state, has excellent operation performance, and is flexible and reliable.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the sleeve cup shown in FIG. 1;
fig. 4 is a schematic structural view of the stop lever shown in fig. 1.
Description of the drawings: 1-a sleeve cup; 2-clutch handles; 3-lifting handle; 4-a limiting rod; 5-end caps; 6-a spring; 7-a cylinder; 8-a separation seat; 9-a flexible shaft; 10-an auxiliary plate; 11-axial grooves; 12-radial annular groove; 13-positioning slots or positioning holes; 14-steps; 15-the rear end of the limiting rod; 16-annular boss.
Detailed Description
The invention discloses a locking device of a clutch mechanism of a coal mining machine, which comprises a sleeve cup 1, a flexible shaft 9, a separation seat 8, an auxiliary plate 10, a bolt mechanism and a clutch handle 2, wherein the sleeve cup and the flexible shaft are coaxially arranged, and the flexible shaft passes through the sleeve cup. The inner wall of the sleeve cup is provided with a front radial annular groove 12 and a rear radial annular groove and one or more axial grooves 11 which are respectively used for the axial limiting clutch mechanism and the circumferential limiting clutch mechanism, wherein the two radial annular grooves respectively correspond to the positions of the flexible shaft entering and exiting the transmission system. The axial groove communicates with both of the radial annular grooves. The center of the isolation seat is coaxially sleeved and fixed at the front part of the flexible shaft, so that the isolation seat and the flexible shaft can synchronously move and rotate. And one or more radially-extending bosses are arranged on the isolation seat, and can rotate in the radial annular groove and slide back and forth in the axial groove when the isolation seat rotates and moves back and forth along with the flexible shaft. The number of the bosses does not exceed the number of the axial grooves, and each boss is simultaneously provided with the axial grooves in sliding fit with the boss. In this embodiment, the isolation seat is in a strip shape, and two ends in the length direction are respectively provided with one boss. The bolt mechanism comprises a cylinder 7, an end cover 5 for fixing and closing the front end of the cylinder, a limiting rod 4 penetrating through the cylinder in the front-back direction and a spring 6 precompressed in the cylinder and sleeved on the limiting rod. The rear end of the cylinder body is attached and fixed to the front end face of the isolation seat, and the isolation seat seals the rear end of the cylinder body. In the embodiment shown in fig. 1, the rear end of the cylinder is attached to a bottom surface of a groove formed on the front end surface of the isolation seat. The corresponding position on the isolation seat, namely, the bottom surface of the groove is provided with a through hole, the limiting rod is provided with an annular boss 16, the space between the annular boss and the end cover is used as the movable area of the spring, and the two ends of the spring respectively lean against the rear end surface of the end cover and the front end surface of the annular boss. The annular boss is located in the barrel in a natural state, the rear end of the annular boss abuts against the front end face of the isolation seat (when the groove is formed, the rear end face of the annular boss abuts against the groove bottom face of the groove), the front end of the limiting rod extends out of the barrel forwards, and the rear end of the limiting rod extends out of the isolation seat backwards through the through hole. The auxiliary plate is arranged at the rear of the radial annular groove at the front, one or a plurality of positioning grooves or positioning holes 13 which are distributed at intervals in the circumferential direction and used for being in plug-in fit with the rear end 15 of the limiting rod are respectively arranged at the front end face of the auxiliary plate and the inner side end face of the sleeve cup, and the positioning grooves or the positioning holes are respectively used for circumferential limiting when the clutch mechanism is disengaged and enters the transmission system. Each positioning groove or positioning hole and any axial groove are not in the same radial direction. The clutch handle is arranged at the front end of the flexible shaft. The flexible shaft can be conveniently pushed and pulled and rotated by operating the separation handle, so that the separation seat is driven to move forwards and backwards and rotate circumferentially.
The using method of the locking device of the clutch mechanism of the coal mining machine comprises the following steps: when the motor and the transmission system are required to be linked, the limiting rod is pulled forwards, the rear end of the limiting rod is retracted forwards to be separated from the positioning groove or the positioning hole on the auxiliary plate, the limiting rod is rotated by a certain angle to enable the boss on the limiting rod to be aligned with the corresponding axial groove, then the clutch handle is operated to push the flexible shaft backwards into the transmission system, the limiting rod is moved backwards into the radial annular groove at the back, the limiting rod is rotated by a certain angle to enable the limiting rod to be opposite to a certain positioning groove or a positioning hole on the inner side end face of the sleeve cup in the axial direction, the boss on the limiting rod is separated from the corresponding axial groove at the moment, the limiting rod is released in the axial direction through the radial annular groove at the back, the limiting rod is ejected backwards to be inserted into the positioning groove or the positioning hole on the inner side end face of the sleeve cup under the action of the spring force, and the angular direction limiting of the limiting rod is achieved, and the clutch mechanism of the coal mining machine is in a 'combined' state and locked.
When the motor and the transmission system are required to be separated, the limiting rod is pulled forwards, the rear end of the limiting rod is retracted forwards to be separated from the positioning groove or the positioning hole on the inner side end surface of the sleeve cup, the limiting rod is rotated by a certain angle to enable the boss on the limiting rod to be aligned with the corresponding axial groove, then the flexible shaft is pulled forwards out of the transmission system through the clutch handle, the limiting rod moves forwards into the radial annular groove ahead, the limiting rod is rotated by a certain angle to enable the limiting rod to be opposite to one positioning groove or the positioning hole on the auxiliary plate in the axial direction, the boss on the limiting rod is separated from the corresponding axial groove at the moment, the limiting rod is released at last, the limiting rod is ejected backwards under the action of a spring force to be inserted into the positioning groove or the positioning hole on the auxiliary plate, and the angular limiting of the limiting rod is achieved.
The axial grooves also serve to guide the isolation mount and flexible shaft into and out of the drive train.
Each positioning groove or positioning hole and any axial groove are not in the same radial direction, and the positioning grooves or positioning holes and any axial groove are used for enabling the spacing seat and the flexible shaft to be axially limited, and then the spacing rod can be clamped into the positioning groove or the positioning hole, so that state locking of the clutch mechanism is completed.
In this embodiment, the positioning groove or the positioning hole on the inner side end surface of the sleeve is preferably non-penetrating, while the positioning groove or the positioning hole on the auxiliary plate is preferably penetrating. In either case, a certain depth should be ensured.
Because the bolt mechanism is adopted, the rear end part of the limiting rod is matched with the corresponding positioning groove or the positioning hole in a plugging manner, so that the reliable locking of the position of the flexible shaft is realized, the flexible shaft cannot deviate from the locking position even if the coal mining machine is in a state of large vibration, and the safety of the clutch mechanism is improved.
The maximum length of the rear end part of the limiting rod, which can be inserted into the positioning groove or the positioning hole, is not greater than the working stroke of the spring, so that the rear end of the limiting rod can smoothly enter and exit the positioning groove or the positioning hole 13.
As shown in fig. 2, the axial grooves may be two, preferably arranged 180 degrees from each other in the circumferential direction. The positioning grooves or positioning holes on the auxiliary plate and the inner side end surface of the sleeve cup are preferably arranged in pairs, for example, two, four or six, and are symmetrically distributed relative to the connecting lines of the two axial grooves, so that the position locking can be realized by rotating the same angle left and right, and the operation can be convenient and simplified. Of course, the detent grooves or the detent holes can also be provided asymmetrically, without affecting the locking.
The front end of the limit rod can be provided with a lifting handle 3 so as to facilitate the manual operation when the limit rod is pulled out and relaxed. The handle is adjacent to the clutch handle 2 and one hand can operate the handle while operating the clutch handle.
One end of the lifting handle can be hinged with the limiting rod through a connecting piece such as a pin.
The former part of the annular boss on the limiting rod is preferably a stepped shaft structure with a thin front part and a thick rear part, and a step 14 is arranged between the two steps.
The front end face of the isolation seat can be provided with a groove, the rear end of the cylinder body is wholly embedded into the groove, and the cylinder body and the isolation seat can be welded and connected. Before welding, the rear end of the cylinder body is just embedded into the groove, and the groove can facilitate the positioning of the cylinder body during welding.
The end cover is preferably provided with external threads, the front section of the cylinder body is correspondingly provided with internal threads, and the end cover is in threaded connection with the cylinder body.
The installation sequence of the bolt mechanism is as follows: firstly, the limiting rod 4 is arranged in the cavity, the spring 6 is arranged in the cavity, then the end cover 5 is screwed into the cylinder 7 after penetrating through the front end of the limiting rod, and finally, the lifting handle is arranged on the limiting rod, and the disassembly sequence is the reverse. The bolt mechanism has simple structure and convenient disassembly and assembly.
The positioning grooves or positioning holes on the auxiliary plate and the positioning grooves or positioning holes on the sleeve cup are not limited in position in the circumferential direction, and can be the same or different, but the radial distances from the axis of the flexible shaft are equal.
The latter annular recess is preferably located axially adjacent to the inner end face of the cup (i.e. the front end face of the inner end). The auxiliary plate is preferably the annular groove immediately forward from behind in the axial direction. Therefore, the rear end of the limiting rod can be reliably spliced and matched with the positioning groove or the positioning hole without being long, and the limiting rod is compact in structure and good in stress.
In this embodiment, the isolation seat is in a strip shape, and is centrally arranged in a plane where any cross section of the flexible shaft is located, and the auxiliary plate is located near a corner of the inner wall of the sleeve cup. The isolating seat can rotate along with the flexible shaft, at least one position exists in the same cross section, and the isolating seat is not overlapped with the auxiliary plate when rotating to the position, so that the isolating seat can be ensured not to interfere with the auxiliary plate in the pushing and pulling process along with the flexible shaft.
The outline of the positioning slot or positioning hole on the auxiliary board surface is a part of a circular outline, and two large semicircular positioning holes are shown in the embodiment of the figure.
The front and rear directions referred to herein correspond to the left and right directions, respectively, in the view of fig. 1.
Claims (8)
1. The utility model provides a coal-winning machine clutch mechanism locking device which characterized in that: comprises a sleeve cup, a flexible shaft, a separation seat, an auxiliary plate, a bolt mechanism and a clutch handle, wherein the sleeve cup and the flexible shaft are coaxially arranged, the inner wall of the sleeve cup is provided with a front radial annular groove, a rear radial annular groove and one or more axial grooves, the axial grooves are communicated with the two radial annular grooves, the center of the separation seat is coaxially sleeved and fixed at the front part of the flexible shaft, the separation seat is provided with one or more radially-extending bosses which can rotate in the radial annular grooves and slide back and forth in the axial grooves, the bolt mechanism comprises a cylinder body, an end cover for fixing and closing the front end of the cylinder body, a limiting rod penetrating through the cylinder body in the front-rear direction and a spring precompressed in the cylinder body and sleeved on the limiting rod, the rear end of the cylinder body is fixedly attached to the front end face of the separation seat, the cylinder body is welded with the isolation seat, a through hole is arranged at a corresponding position on the isolation seat, an annular boss is arranged on the limiting rod, two ends of the spring respectively lean against the rear end face of the end cover and the front end face of the annular boss, the annular boss is positioned in the cylinder body in a natural state, the rear end face of the annular boss leans against the front end face of the isolation seat, the front end of the limiting rod extends out of the cylinder body forwards, the rear end of the limiting rod extends out of the isolation seat backwards through the through hole, a lifting handle is arranged at the front end of the limiting rod, the auxiliary plate is arranged behind the radial annular groove in the front of the auxiliary plate, one or a plurality of positioning grooves or positioning holes for the insertion fit of the rear end part of the limiting rod are respectively arranged at intervals in the circumferential direction on the front end face of the auxiliary plate and the inner side end face of the sleeve cup, each positioning groove or each positioning hole and any axial groove are not in the same radial direction, and the clutch handle is arranged at the front end of the flexible shaft.
2. The shearer clutch mechanism locking device of claim 1, wherein: the maximum length of the rear end of the limiting rod, which can be inserted into the positioning groove or the positioning hole, is not greater than the working stroke of the spring.
3. The shearer clutch mechanism locking device of claim 2, wherein: the two axial grooves are arranged at 180 degrees in the circumferential direction, and the positioning grooves or the positioning holes are arranged in pairs and are symmetrically distributed relative to the connecting lines of the two axial grooves.
4. The shearer clutch mechanism locking device of claim 2, wherein: one end of the lifting handle is hinged with the limiting rod through a pin.
5. The shearer clutch mechanism locking device of claim 2, wherein: the part of the limiting rod in front of the annular boss is of a stepped shaft structure with a thin front part and a thick rear part.
6. The shearer clutch mechanism locking device of claim 2, wherein: the end cover is provided with external threads, the front section of the cylinder body is provided with internal threads, and the end cover is in threaded connection with the cylinder body.
7. The shearer clutch mechanism locking device of claim 2, wherein: the positioning groove or the positioning hole on the auxiliary plate is the same as or different from the positioning groove or the positioning hole on the sleeve cup in the circumferential direction.
8. The shearer clutch mechanism locking device of claim 1, 2, 3, 4, 5, 6 or 7, wherein: the latter radial annular groove is axially adjacent to the inner end face of the sleeve cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645085.1A CN110242296B (en) | 2019-07-17 | 2019-07-17 | Locking device for clutch mechanism of coal mining machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910645085.1A CN110242296B (en) | 2019-07-17 | 2019-07-17 | Locking device for clutch mechanism of coal mining machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110242296A CN110242296A (en) | 2019-09-17 |
| CN110242296B true CN110242296B (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910645085.1A Active CN110242296B (en) | 2019-07-17 | 2019-07-17 | Locking device for clutch mechanism of coal mining machine |
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| Country | Link |
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| CN (1) | CN110242296B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810065B (en) * | 2022-05-07 | 2022-11-29 | 四川华蓥山广能集团嘉华机械有限责任公司 | Permanent magnet direct-drive coal mining machine rocker arm suitable for steep dip angle coal seam and use method thereof |
| CN115507130A (en) * | 2022-09-13 | 2022-12-23 | 扎赉诺尔煤业有限责任公司 | Clutch mechanism for coal mining machine, coal mining machine and application method of clutch mechanism |
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|---|---|---|---|---|
| US4552001A (en) * | 1983-12-06 | 1985-11-12 | Medeco Security Locks, Inc. | High security T-handle assembly |
| CN201133122Y (en) * | 2007-12-01 | 2008-10-15 | 韩尚智 | Electronic mortise lock clutching structure |
| CN202266613U (en) * | 2011-10-20 | 2012-06-06 | 安徽山河矿业装备股份有限公司 | Cutting portion clutch device of coal mining machine |
| CN105113855A (en) * | 2015-09-21 | 2015-12-02 | 肖钧 | Engaging and disengaging mechanism of electronic core insertion lock |
| CN205822940U (en) * | 2016-07-08 | 2016-12-21 | 广东汇泰龙科技有限公司 | A kind of self calibration clutch |
| CN106640070A (en) * | 2017-01-26 | 2017-05-10 | 天地上海采掘装备科技有限公司 | Flexible shock absorption type clutch mechanism |
| CN210460656U (en) * | 2019-07-17 | 2020-05-05 | 天地科技股份有限公司上海分公司 | Locking device for clutch mechanism of coal mining machine |
-
2019
- 2019-07-17 CN CN201910645085.1A patent/CN110242296B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4552001A (en) * | 1983-12-06 | 1985-11-12 | Medeco Security Locks, Inc. | High security T-handle assembly |
| CN201133122Y (en) * | 2007-12-01 | 2008-10-15 | 韩尚智 | Electronic mortise lock clutching structure |
| CN202266613U (en) * | 2011-10-20 | 2012-06-06 | 安徽山河矿业装备股份有限公司 | Cutting portion clutch device of coal mining machine |
| CN105113855A (en) * | 2015-09-21 | 2015-12-02 | 肖钧 | Engaging and disengaging mechanism of electronic core insertion lock |
| CN205822940U (en) * | 2016-07-08 | 2016-12-21 | 广东汇泰龙科技有限公司 | A kind of self calibration clutch |
| CN106640070A (en) * | 2017-01-26 | 2017-05-10 | 天地上海采掘装备科技有限公司 | Flexible shock absorption type clutch mechanism |
| CN210460656U (en) * | 2019-07-17 | 2020-05-05 | 天地科技股份有限公司上海分公司 | Locking device for clutch mechanism of coal mining machine |
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