CN113123814A - Automatic lock-falling lifting limiting mechanism for vertical dismounting machine - Google Patents
Automatic lock-falling lifting limiting mechanism for vertical dismounting machine Download PDFInfo
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- CN113123814A CN113123814A CN202110539904.1A CN202110539904A CN113123814A CN 113123814 A CN113123814 A CN 113123814A CN 202110539904 A CN202110539904 A CN 202110539904A CN 113123814 A CN113123814 A CN 113123814A
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- 230000000670 limiting effect Effects 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 230000009471 action Effects 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/60—Devices for withdrawing props or chocks
- E21D15/603—Devices for withdrawing props or chocks by means of hydraulic devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
- E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Geochemistry & Mineralogy (AREA)
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- Clamps And Clips (AREA)
Abstract
The invention belongs to the technical field of maintenance of mining equipment, and particularly relates to an automatic lock-falling lifting limiting mechanism for a vertical type dismounting machine, which comprises a supporting device, wherein the supporting device comprises a base, lifting oil cylinders are arranged at two ends of the base, a chain wheel is rotatably connected to the top end of each lifting oil cylinder, a chain is sleeved on each chain wheel, one end of each chain is connected with the base, the other end of each chain is connected with a clamping device, supporting seats are arranged at four corners of the top end of each clamping device, a rotating device is rotatably connected to each supporting seat and comprises a rotating shaft, a connecting rod is arranged at the end, close to a stop block, of each rotating shaft. The lifting device is simple in structure and convenient to operate, the lifting height of the clamping device can be conveniently judged when the clamping device is lifted through the matching of the pawl and the rack under the action of the lifting oil cylinder, and when the clamping device stops moving, the rack limits the pawl so as to limit the clamping device.
Description
Technical Field
The invention belongs to the technical field of maintenance of mining equipment, and particularly relates to an automatic lock-falling lifting limiting mechanism for a vertical dismounting machine.
Background
The hydraulic support is supporting equipment commonly used in the coal fully-mechanized mining industry, the safety and stability of the hydraulic support directly influence the production efficiency, but in an underground humid environment, devices such as a stand column and a jack of the hydraulic support are easily rusted to influence the operation of the hydraulic support, further influence the working efficiency, and the oil cylinder needs to be disassembled and assembled during maintenance. The lifting mechanism of the existing disassembly and assembly machine adopts a steel wire rope and a fixed pulley to be matched with a lifting oil cylinder for lifting, but part of the lifting mechanism of the vertical disassembly and assembly machine is arranged underground, the steel wire rope is easy to corrode and break, frequent maintenance is needed, and the use is inconvenient.
Disclosure of Invention
The invention aims to provide an automatic lock-falling lifting limiting mechanism for a vertical dismounting machine, which has simple structure and convenient operation, under the action of a lifting oil cylinder, a clamping device is convenient to judge the lifting height when lifting through the matching of a pawl and a rack, and the rack limits the pawl when the clamping device stops moving, thereby limiting the clamping device.
The automatic lock-falling lifting limiting mechanism for the vertical type disassembling and assembling machine comprises a supporting device, wherein the supporting device comprises a base, one end of the base is provided with two first stand columns, the other end of the base is provided with two second stand columns, racks are arranged on the opposite sides of the two first stand columns and the opposite sides of the two second stand columns, pawl teeth are obliquely arranged on the racks, stop blocks are arranged at the upper ends of the first stand columns and the second stand columns respectively, the stop blocks and the racks are arranged on the same side of the first stand columns or the second stand columns, oil cylinder chain lifting devices are arranged at the two ends of the base respectively, each oil cylinder chain lifting device comprises a lifting oil cylinder, the top end of each lifting oil cylinder is rotatably connected with a chain wheel, a chain is sleeved on each chain wheel, one end of each chain is connected with the base, the other end of each chain is connected with a clamping device, the clamping devices are used, clamping device top four corners all is equipped with the supporting seat, it is connected with rotating device to rotate on the supporting seat, rotating device includes the axis of rotation, the axis of rotation is close to the dog end and is equipped with the connecting rod, keeps away from the dog end and is connected with the ejector pad connecting rod, the ejector pad connecting rod is kept away from dog end sliding connection and is had thrust unit, the connecting rod is kept away from to rotate the axle head and is rotated and be connected with the gyro wheel, gyro wheel and first stand or second stand sliding connection, and the gyro wheel is corresponding with the dog, it is equipped with cam and torsional spring in proper order to be close to promotion connecting rod end in the axis of rotation, the one end of torsional spring is connected with the axis of rotation, and the other end is connected with the supporting seat, be equipped with spacing platform on the.
The pushing device comprises a pushing block, a chute is arranged on the pushing block, the chute is connected with a connecting rod of the pushing block in a sliding way, a baffle is arranged at the top end of the pushing block, and the bottom of the push block is provided with a push rod, the middle part of the push rod is connected with a clamping device in a sliding way, the middle part of the push rod is sleeved with a return spring, when the lifting oil cylinder pushes the clamping device to move to the upper ends of the first upright post and the second upright post, the limit table on the cam is attached to the baffle plate on the push block, when the lifting oil cylinder pulls the clamping device to move to the lower ends of the first upright post and the second upright post, the bottom end of the push rod is in contact with the bottom plate, when the lifting oil cylinder continues to pull the clamping device to move downwards, the push rod and the push block do not move, the push rod, the push block and the cam move relatively, the limiting table on the cam is separated from the baffle on the push block, the rotating shaft rotates reversely under the action of the torsion spring, and the pawl, the connecting rod and the cam are driven to return.
Preferably, the bottom surface of the stop block is obliquely arranged, and when the lifting oil cylinder drives the clamping device to move upwards and the connecting rod drives the roller to move to the bottom surface of the stop block, the connecting rod can slowly rotate.
Preferably, when the limiting table is attached to the baffle, the torque of the torsion spring is increased.
The invention also comprises other steps which can ensure that the automatic lock-falling lifting limiting mechanism for the vertical dismounting machine can be normally used, and the steps are conventional technical means in the field. In addition, the technical means which are not limited in the invention adopt the conventional technical means in the field.
When the clamping device is used, a workpiece to be disassembled is placed in the clamping device, when the clamping device needs to drive the workpiece to be disassembled to move upwards, the piston rod of the lifting oil cylinder extends, the clamping device is driven to move upwards through the chain, the pawl slides on the rack, the clamping device can ascend gradually, in the process that the pawl slides on the rack, when the height of one pawl tooth is increased per liter, the pawl collides with the rack, the height of the clamping device can be judged according to the collision sound, and when the clamping device ascends to a certain height and stops ascending, the pawl tooth has a limiting effect on the pawl, so that the clamping device can be prevented from moving downwards.
When the clamping device needs to drive a workpiece to be disassembled and assembled to move downwards, a piston rod of the lifting oil cylinder extends, the clamping device is driven by the chain to move to the upper ends of the first upright post and the second upright post, the roller wheel is connected with the bottom end of the stop block in a rolling manner, when the lifting oil cylinder continues to drive the clamping device to move upwards by the chain, the top end of the push block is contacted with the cross beam, the push block moves, the stop block pushes the connecting rod to deflect a certain angle, the connecting rod drives the rotating shaft to rotate, the rotating shaft drives the torsion spring to twist, the torque of the torsion spring is increased, the rotating shaft drives the cam to rotate, a limiting table on the cam is matched with a baffle on the push block, the limiting table is tightly combined with the push block under the torque action of the torsion spring, the rotating shaft drives the pawl to rotate, the pawl is separated from the rack, the piston rod of the lifting oil cylinder is shortened, the bottom end of the push rod is in contact with the bottom plate, when the lifting oil cylinder drives the clamping device to continuously move downwards through the chain, the clamping device drives the rotating shaft, the cam and the torsion spring to move downwards, the cam and the push block move relatively, the limiting table on the cam is separated from the baffle on the push block, the rotating shaft rotates under the action of the torsion spring and drives the pawl, the connecting rod and the cam to return, and the pawl is in contact with the rack.
The lifting oil cylinder has the advantages that the structure is simple, the operation is convenient, the clamping device can conveniently judge the lifting height of the clamping device when the clamping device is lifted through the matching of the pawl and the rack under the action of the lifting oil cylinder, and the rack limits the pawl when the clamping device stops moving, so that the clamping device is limited.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the support device of the present invention;
FIG. 3 is a schematic view of the pushing means and the rotating means of the present invention;
fig. 4 is a schematic view of the structure of the cam of the present invention.
Detailed Description
The present invention will be described more clearly with reference to specific embodiments, which are provided herein for the purpose of illustration only and are not to be construed as limiting the invention. All other embodiments, which can be obtained by those skilled in the art without any inventive step based on the embodiments of the present invention, should be included in the scope of the present invention.
Examples
As shown in fig. 1 to 4, the automatic lock-falling lifting limiting mechanism for a vertical type dismounting machine comprises a supporting device, the supporting device comprises a base 1, one end of the base 1 is provided with two first upright columns 2, the other end of the base 1 is provided with two second upright columns 3, racks 4 are respectively arranged on the opposite sides of the two first upright columns 2 and the opposite sides of the two second upright columns 3, pawl teeth are obliquely arranged on the racks 4, stoppers 5 are respectively arranged at the upper ends of the first upright columns 2 and the second upright columns 3, the stoppers 5 and the racks 4 are arranged on the same side of the first upright columns 2 or the second upright columns 3, cylinder chain lifting devices are respectively arranged at the two ends of the base 1, each cylinder chain lifting device comprises a lifting cylinder 18, the top end of the lifting cylinder 18 is rotatably connected with a chain wheel 23, a chain 22 is sleeved on the chain wheel 23, one end of the chain 22 is connected with the base 1, the clamping device 6 is used for clamping a workpiece to be disassembled and assembled, the first stand column 2 and the second stand column 3 are both connected with the clamping device 6 in a sliding manner, supporting seats 17 are arranged at four corners of the top end of the clamping device 6, a rotating device is connected to the supporting seats 17 in a rotating manner and comprises a rotating shaft 19, a connecting rod 15 is arranged at the end, close to the stop block 5, of the rotating shaft 19, a push block connecting rod is connected with the end, far away from the stop block 5, of the push block connecting rod, a pushing device is connected to the end, far away from the rotating shaft 19, of the connecting rod 15, a roller 14 is connected with the rotating shaft 19 in a rotating manner, the roller 14 is connected with the first stand column 2 or the second stand column 3 in a sliding manner, the roller 14 corresponds to the stop block 5, a cam 20 and a torsion spring 13 are sequentially arranged at the end, close, a pawl 16 is arranged in the middle of the rotating shaft 19, the pawl 16 is connected with the rack 4 in a sliding mode, and cross beams 8 are arranged at the upper ends of the first upright post 2 and the second upright post 3.
The pushing device comprises a pushing block 9, a sliding groove is arranged on the pushing block 9 and is in sliding connection with a pushing block connecting rod, a baffle 12 is arranged at the top end of the pushing block 9, a push rod 10 is arranged at the bottom of the pushing block 9, the middle of the push rod 10 is in sliding connection with a clamping device 6, a return spring 11 is sleeved at the middle of the push rod 10, when a lifting oil cylinder 18 pushes the clamping device 6 to move to the upper ends of the first upright post 2 and the second upright post 3, a limiting platform 21 on a cam 20 is attached to the baffle 12 on the pushing block 9, when the lifting oil cylinder 18 pulls the clamping device 6 to move to the lower ends of the first upright post 2 and the second upright post 3, the bottom end of the push rod 10 is in contact with the bottom plate 1, when the lifting oil cylinder 18 continues to pull the clamping device 6 to move downwards, the push rod 10 and the pushing block 9 do not move, the push rod 10 and the pushing block 9 move relative to the cam, the rotating shaft 19 rotates reversely under the action of the torsion spring 13, and the rotating shaft 19 drives the pawl 16, the connecting rod 15 and the cam 20 to return.
The bottom surface of the stop block 5 is obliquely arranged, and when the lifting oil cylinder 18 drives the clamping device to move upwards and the connecting rod 15 drives the roller 14 to move to the bottom surface of the stop block 5, the connecting rod 15 can slowly rotate.
When the limit table 21 is fitted to the baffle 12, the torque of the torsion spring 13 is increased.
When the clamping device 6 is used, a workpiece to be disassembled and assembled is placed in the clamping device 6, when the clamping device 6 needs to drive the workpiece to be disassembled and assembled to move upwards, the piston rod of the lifting oil cylinder 18 extends, the clamping device 6 is driven to move upwards through the chain 22, the pawl 16 slides on the rack 4, the clamping device 6 can be gradually lifted, in the process that the pawl 16 slides on the rack 4, when the height of one pawl tooth is increased per liter, the pawl 16 collides with the rack 4, the height of the clamping device 6 can be judged according to collision sound, and when the clamping device 6 is lifted to a certain height and stops lifting, the pawl tooth has a limiting effect on the pawl 16, and the clamping device 4 can be prevented from moving downwards.
When the clamping device 6 needs to drive a workpiece to be disassembled and assembled to move downwards, a piston rod of the lifting cylinder 18 extends, the chain 22 drives the clamping device 6 to move to the upper ends of the first upright post 2 and the second upright post 3, the roller 14 is in rolling connection with the bottom end of the stop block 5, when the lifting cylinder 18 continues to drive the clamping device 6 to move upwards through the chain 22, the top end of the push block 9 is in contact with the cross beam 8, the push block 9 moves, the stop block 5 pushes the connecting rod 15 to deflect a certain angle, the connecting rod 15 drives the rotating shaft 19 to rotate, the rotating shaft 19 drives the torsion spring 13 to twist, so that the torque of the torsion spring 13 is increased, the rotating shaft 19 drives the cam 20 to rotate, the limit table 21 on the cam 20 is matched with the baffle 12 on the push block 9, the limit table 21 is tightly combined with the push block 9 under the torque of the torsion spring 13, and the rotating shaft 19 drives, when a piston rod of the lifting oil cylinder 18 is shortened and the clamping device 6, the rotating shaft 19 and the pushing device are driven by the chain 22 to move downwards to the lower ends of the first upright post 2 and the second upright post 3, the bottom end of the push rod 10 is in contact with the bottom plate 1, when the lifting oil cylinder 18 drives the clamping device 6 to move downwards continuously by the chain 22, the clamping device 6 drives the rotating shaft 9, the cam 20 and the torsion spring 13 to move downwards, the cam 20 and the push block 9 move relatively, the limiting table 21 on the cam 20 is separated from the baffle 12 on the push block 9, the rotating shaft 19 rotates under the action of the torsion spring 13 and drives the pawl 16, the connecting rod 15 and the cam 20 to return, and the pawl 16 is in contact with the.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (4)
1. The automatic lock-falling lifting limiting mechanism for the vertical type disassembling and assembling machine comprises a supporting device, wherein the supporting device comprises a base, one end of the base is provided with two first stand columns, the other end of the base is provided with two second stand columns, racks are arranged on the opposite sides of the two first stand columns and the opposite sides of the two second stand columns, pawl teeth are obliquely arranged on the racks, stop blocks are arranged at the upper ends of the first stand columns and the second stand columns respectively, the stop blocks and the racks are arranged on the same side of the first stand columns or the second stand columns, oil cylinder chain lifting devices are arranged at the two ends of the base respectively, each oil cylinder chain lifting device comprises a lifting oil cylinder, the top end of each lifting oil cylinder is rotatably connected with a chain wheel, a chain is sleeved on each chain wheel, one end of each chain is connected with the base, the other end of each chain is connected with a clamping device, the clamping devices are used, clamping device top four corners all is equipped with the supporting seat, it is connected with rotating device to rotate on the supporting seat, rotating device includes the axis of rotation, the axis of rotation is close to the dog end and is equipped with the connecting rod, keeps away from the dog end and is connected with the ejector pad connecting rod, the ejector pad connecting rod is kept away from dog end sliding connection and is had thrust unit, the connecting rod is kept away from to rotate the axle head and is rotated and be connected with the gyro wheel, gyro wheel and first stand or second stand sliding connection, and the gyro wheel is corresponding with the dog, it is equipped with cam and torsional spring in proper order to be close to promotion connecting rod end in the axis of rotation, the one end of torsional spring is connected with the axis of rotation, and the other end is connected with the supporting seat, be equipped with spacing platform on the.
2. The automatic lock-falling lifting limiting mechanism for the vertical type disassembling and assembling machine according to claim 1, characterized in that: the pushing device comprises a pushing block, a sliding groove is formed in the pushing block and is in sliding connection with a pushing block connecting rod, a baffle is arranged at the top end of the pushing block, a pushing rod is arranged at the bottom of the pushing block, the middle of the pushing rod is in sliding connection with the clamping device, and a return spring is sleeved at the middle of the pushing rod.
3. The automatic lock-falling lifting limiting mechanism for the vertical type disassembling and assembling machine according to claim 1, characterized in that: the bottom surface of the stop block is obliquely arranged.
4. The automatic lock-falling lifting limiting mechanism for the vertical type disassembling and assembling machine according to claim 2, characterized in that: when the limiting table is attached to the baffle, the torque of the torsion spring is increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110539904.1A CN113123814A (en) | 2021-05-18 | 2021-05-18 | Automatic lock-falling lifting limiting mechanism for vertical dismounting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110539904.1A CN113123814A (en) | 2021-05-18 | 2021-05-18 | Automatic lock-falling lifting limiting mechanism for vertical dismounting machine |
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| Publication Number | Publication Date |
|---|---|
| CN113123814A true CN113123814A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110539904.1A Pending CN113123814A (en) | 2021-05-18 | 2021-05-18 | Automatic lock-falling lifting limiting mechanism for vertical dismounting machine |
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| CN (1) | CN113123814A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000698A (en) * | 2021-11-11 | 2022-02-01 | 国网河南省电力公司宜阳县供电公司 | Convenient to use's column switch overhauls auxiliary device |
-
2021
- 2021-05-18 CN CN202110539904.1A patent/CN113123814A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114000698A (en) * | 2021-11-11 | 2022-02-01 | 国网河南省电力公司宜阳县供电公司 | Convenient to use's column switch overhauls auxiliary device |
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