CN216130951U - Support device suitable for shield type caving coal hydraulic support - Google Patents
Support device suitable for shield type caving coal hydraulic support Download PDFInfo
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- CN216130951U CN216130951U CN202122585595.XU CN202122585595U CN216130951U CN 216130951 U CN216130951 U CN 216130951U CN 202122585595 U CN202122585595 U CN 202122585595U CN 216130951 U CN216130951 U CN 216130951U
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Abstract
The utility model discloses a support device suitable for a shield type caving coal hydraulic support, which comprises a hydraulic support top beam, a hydraulic support front upright post, a base front upright post and a connecting device. The utility model provides a device for a hydraulic support, which can rapidly adjust the stress state of the hydraulic support by using a self hydraulic system, can effectively solve the problem of support front beam head lowering caused by top leakage and roof fall of a fully mechanized top coal caving working surface, and avoids the hidden troubles of continuous gangue leakage and roof fall of the fully mechanized top coal caving working surface and the like.
Description
Technical Field
The utility model relates to the field of fully mechanized coal mining face top coal caving support equipment, in particular to an improved device of a hydraulic support, and more particularly relates to a support device suitable for a shield type top coal caving hydraulic support.
Background
Fully-mechanized top coal caving and one of thick coal seam coal mining technologies are characterized in that a longwall working face with the mining height of two to three meters is arranged along the bottom of a coal seam in the thick coal seam, mining is carried out by a conventional method, and top coal above a support is broken into discrete bodies under the action of mine pressure or by assisting a manual loosening method, then the top coal is discharged from the rear of the support and is conveyed out of the working face through a scraper conveyor. At present, a hydraulic support is a device for mainly maintaining a top plate of a coal face, when a front beam leaks and falls off the top of the top plate of the face, the front beam of the hydraulic support is often in a head-lowering state, and the orderly propulsion of the face and the maintenance of the top plate of the face are not facilitated. When the broken gangue leakage of the top plate is serious, the load distribution of the top of the support is uneven, so that the hydraulic support presents a bad posture that the front column is low and the rear column is high, the hydraulic support cannot correctly and evenly bear the load of the overlying strata, the top plate on the upper part of the front beam of the support continuously leaks the gangue and the top, if the adjustment is not timely, a vicious circle is formed, and the safety production of a coal face is seriously damaged. When the front beam leaks the waste rock seriously, the defects of the existing hydraulic support can not utilize a self hydraulic system to quickly recover the posture of a normally supported top plate.
SUMMERY OF THE UTILITY MODEL
The utility model provides a support device suitable for a shield type caving coal hydraulic support, and aims to solve the problem that the existing hydraulic support cannot rapidly recover the posture of a normally supported roof by using a hydraulic system of the hydraulic support.
The technical scheme provided by the utility model is as follows: a kind of support device suitable for the hydraulic support of shield-type caving coal, including hydraulic support back timber, hydraulic support front pillar, base front pillar and junction device; the base front column is connected with the hydraulic prop through a connecting device.
Preferably, a groove a is formed in the front section of the top beam of the hydraulic support; a flexible cushion block is arranged in the groove a;
preferably, the top end of the hydraulic prop is provided with a tooth-shaped structure; a protective handle is arranged at the upper part of the column body of the hydraulic prop; the protective handle is provided with a protective chain; the protective handle is connected with the top beam of the hydraulic support through a protective chain; and the middle part of the column body of the hydraulic prop is provided with an emulsion injection hole.
Preferably, the upper part of the connecting device is provided with a groove c; pin shaft holes are correspondingly formed in the inner walls of the two sides of the groove c, and pin shafts are installed in the pin shaft holes in a matched mode; the bottom of the hydraulic prop is rotatably connected with the groove c through a pin shaft hole and a pin shaft;
preferably, the bottom of the connecting device is provided with a groove b; jackscrews are arranged on the inner walls of the two sides of the groove b; the groove b is fixedly connected with the top of the front column of the base through a jackscrew.
Preferably, the base front pillar 11 and the base are integrally cast and fixedly connected.
The utility model has the beneficial effects that: the utility model provides a device for a hydraulic support, which can rapidly adjust the stress state of the hydraulic support by using a self hydraulic system, can effectively solve the problem of support front beam head lowering caused by top leakage and roof fall of a fully mechanized top coal caving working surface, and avoids the problems of continuous gangue leakage and roof fall of the fully mechanized top coal caving working surface and the like.
Drawings
In order to more clearly explain the technical solution and the specific embodiments of the present invention, the following description is further provided with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the structural principle of the present invention.
Fig. 2 is a schematic view of the connecting structure of the connecting device and the front column of the base.
Fig. 3 is a schematic view of the structure of the connecting device of the present invention.
Fig. 4 is a schematic view of the structure of the hydraulic prop of the present invention.
In the figure: 1. a groove a; 2. a flexible cushion block; 3. a guard chain; 4. a protective handle; 5. a hydraulic prop; 6. an emulsion injection hole; 7. a pin shaft hole; 8. a connecting device; 9. a groove b; 10. Carrying out top thread; 11. a base front pillar; 12. a front upright post of the hydraulic support; 13. a tooth-shaped structure; 14. hydraulic support top beam, 15. And (c) a groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, the utility model provides a support device suitable for a shield-type caving coal hydraulic support, which comprises a hydraulic support top beam 14, a hydraulic support front upright post 12, a base front post 11 and a connecting device 8; the base front column 11 is connected with the hydraulic prop 5 through a connecting device 8; the stress state of the hydraulic support is changed by utilizing the expansion and contraction of the structure of the hydraulic prop 5, so that a good support function is realized.
A groove a1 is formed in the front section of the top beam 14 of the hydraulic support; a flexible cushion block 2 is arranged in the groove a 1; when the hydraulic prop 5 extends to prop against the structure of the flexible supporting pad 2, the friction force of the contact surface between the top of the hydraulic prop 5 and the support can be increased, and the hydraulic prop 5 is prevented from collapsing in the support supporting process;
the top end of the hydraulic prop 5 is provided with a tooth-shaped structure 13; the upper part of the column body of the hydraulic prop 5 is provided with a protective handle 4; the protective handle 4 is provided with a protective chain 3; the protective handle 4 is connected with a hydraulic support top beam 14 through a protective chain 3; and the middle part of the column body of the hydraulic support column 5 is provided with an emulsion injection hole 6.
The upper part of the connecting device 8 is provided with a groove c 15; the inner walls of the two sides of the groove c15 are correspondingly provided with pin shaft holes 7, and pin shafts are arranged in the pin shaft holes 7 in a matching manner; the bottom of the hydraulic prop 5 is rotatably connected with the groove c15 through a pin shaft hole 7 and a pin shaft;
the bottom of the connecting device 8 is provided with a groove b 9; the inner walls of the two sides of the groove b9 are provided with jackscrews 10; the groove b9 is fixedly connected with the top of the base front pillar 11 through a jackscrew 10.
And the base front column 11 and the base are integrally cast and fixedly connected.
When the device is used, high-pressure emulsion is injected into the hydraulic support 5 through the emulsion injection hole 6, so that the tooth-shaped structure 13 extends out to prop against the flexible cushion block 2 in the groove a1, and the protective handle 4 is connected with the top of the hydraulic support 5 by using the protective chain 3; then annotate liquid in hydraulic prop 5 in the back and forth stand of lift hydraulic support to change the stress state of whole support, thereby realize adjusting whole hydraulic support's stress state rapidly, effectively solve the full-mechanized coal caving working face because of the support front beam low-head problem that the top leaks the sky roof fall and arouses, avoid causing the full-mechanized coal face to continuously leak the cash roof fall scheduling problem.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A kind of support device suitable for the hydraulic support of shield-type caving coal, including hydraulic support back timber, hydraulic support front pillar, base front pillar and junction device; the hydraulic support is characterized in that the base front column is connected with the hydraulic support through a connecting device; the top end of the hydraulic prop is provided with a tooth-shaped structure; a protective handle is arranged at the upper part of the column body of the hydraulic prop; the protective handle is provided with a protective chain; the protective handle is connected with the top beam of the hydraulic support through a protective chain; and the middle part of the column body of the hydraulic prop is provided with an emulsion injection hole.
2. The support device suitable for the shield type hydraulic support for caving coal as claimed in claim 1, wherein the front section of the top beam of the hydraulic support is provided with a groove a; and a flexible cushion block is arranged in the groove a.
3. The device of claim 1, wherein the upper part of the connecting device is provided with a groove c; pin shaft holes are correspondingly formed in the inner walls of the two sides of the groove c, and pin shafts are installed in the pin shaft holes in a matched mode; the bottom of the hydraulic prop is rotatably connected with the groove c through a pin shaft hole and a pin shaft.
4. The handrail device suitable for the shield type hydraulic support for caving coal as claimed in claim 1, wherein the bottom of the connecting device is provided with a groove b; jackscrews are arranged on the inner walls of the two sides of the groove b; the groove b is fixedly connected with the top of the front column of the base through a jackscrew.
5. The device of claim 1, wherein the front pillar of the base is fixedly connected with the base in an integral casting manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122585595.XU CN216130951U (en) | 2021-10-27 | 2021-10-27 | Support device suitable for shield type caving coal hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122585595.XU CN216130951U (en) | 2021-10-27 | 2021-10-27 | Support device suitable for shield type caving coal hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216130951U true CN216130951U (en) | 2022-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122585595.XU Active CN216130951U (en) | 2021-10-27 | 2021-10-27 | Support device suitable for shield type caving coal hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216130951U (en) |
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2021
- 2021-10-27 CN CN202122585595.XU patent/CN216130951U/en active Active
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