CN220769501U - Anti-collision energy absorbing device and anti-collision device for hydraulic support upright post - Google Patents
Anti-collision energy absorbing device and anti-collision device for hydraulic support upright post Download PDFInfo
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- CN220769501U CN220769501U CN202322625685.6U CN202322625685U CN220769501U CN 220769501 U CN220769501 U CN 220769501U CN 202322625685 U CN202322625685 U CN 202322625685U CN 220769501 U CN220769501 U CN 220769501U
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- hydraulic support
- cylinder body
- absorbing device
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- 238000005065 mining Methods 0.000 abstract description 9
- 239000011435 rock Substances 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model belongs to the field of mining machinery, and relates to a collision and energy-absorbing device for a hydraulic support upright post and a collision and energy-absorbing device. The utility model provides the anti-collision energy-absorbing device for the hydraulic support upright post, which has a simple structure and is convenient to install, and the normal use of the hydraulic support upright post is ensured.
Description
Technical Field
The utility model belongs to the field of mining machinery, relates to a collision-preventing and energy-absorbing device and a collision-preventing device, and particularly relates to a collision-preventing and energy-absorbing device and a collision-preventing device for a hydraulic support upright post.
Background
Coal rock with high elastic potential energy on an underground roadway and a mining working face can generate rock burst under the influence of external factors, the tops of the roadway and the mining working face are sunk at the moment of releasing the rock burst, underground fully-mechanized mining equipment is damaged, and casualties are caused. In order to prevent the underground rock burst from damaging, the main mode at present is to support the roadway and the mining working face by adopting a hydraulic support, and the power source of the hydraulic support is from the upright post. The acting force generated by the impact ground pressure is resisted by the existing support, the pressure relief is controlled and realized mainly through the safety valve arranged on the upright post, but the acting force time received by the hydraulic support belongs to the millisecond level, the opening time of the safety valve cannot be reached, the pressure relief cannot be timely realized, the upright post of the support is expanded, pressed, sealed and damaged, and the like, so that the hydraulic support cannot be normally used.
Disclosure of Invention
In order to solve the technical problems in the background art, the utility model provides the anti-collision energy-absorbing device for the hydraulic support upright post, which has the advantages of simple structure and convenience in installation, and ensures the normal use of the hydraulic support upright post, and the anti-collision device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a hydraulic support stand is with scour protection energy-absorbing device which characterized in that: the anti-impact energy-absorbing device for the hydraulic support upright post comprises a base, a first bowl body and a second bowl body, wherein the first bowl body and the second bowl body are sequentially arranged on the base from top to bottom.
The first bowl body and the second bowl body are identical in structure.
The first bowl body comprises a large opening end and a small opening end opposite to the large opening end; the small opening end of the first bowl body is connected with the small opening end of the second bowl body; the large opening end of the second bowl body is arranged on the base; the external diameter of the big mouth end of the first bowl body is smaller than the external diameter of the base.
The first bowl body and the second bowl body are of an integrated structure.
A streamline structure is arranged between the first bowl body and the second bowl body.
A cavity type structure is formed among the first bowl body, the second bowl body and the base.
An anti-collision device based on the anti-collision energy-absorbing device for the hydraulic support upright post is characterized in that: the anti-collision device comprises an anti-collision cylinder body and an anti-collision energy-absorbing device for the upright post of the hydraulic support; the anti-collision cylinder body is of a cylindrical structure with an opening at the upper part; the hydraulic support upright post is arranged in the anti-impact cylinder body along the axial direction of the anti-impact cylinder body by using an anti-impact energy-absorbing device and is connected with the bottom of the anti-impact cylinder body; the height of the anti-impact energy-absorbing device for the hydraulic support upright post is lower than that of the anti-impact cylinder body.
The anti-collision cylinder body comprises a fixed base and a cylinder body fixedly arranged on the fixed base; the hydraulic support upright post is arranged in the cylinder body along the axial direction of the cylinder body by using the anti-impact energy-absorbing device and is connected with the bottom of the cylinder body; the height of the anti-impact energy-absorbing device for the hydraulic support upright post is lower than that of the cylinder body.
The anti-collision cylinder body also comprises a triangular supporting piece; two sides of the triangular support piece are respectively connected with the fixed base and the cylinder; the triangular support pieces are multiple and uniformly distributed in the circumferential direction of the cylinder.
The anti-collision device also comprises a guide sleeve; the guide sleeve is in a circular ring shape; the inner diameter of the guide sleeve is the same as that of the anti-collision cylinder body; the end face of the guide sleeve is provided with guide teeth, and the upper surface of the anti-collision cylinder body is provided with guide grooves matched with the guide teeth; the guide sleeve is arranged on the anti-collision cylinder body through the guide teeth and the guide grooves.
The utility model has the advantages that:
the utility model provides a collision and energy absorption device for a hydraulic support upright post and a collision and energy absorption device, wherein the collision and energy absorption device for the hydraulic support upright post comprises a base, a first bowl body and a second bowl body, and the first bowl body and the second bowl body are sequentially arranged on the base from top to bottom. According to the utility model, the anti-collision cylinder body and the upright post lever bottom structure are added at the lower end of the upright post cylinder bottom, so that the upright post cylinder bottom can be arranged in the anti-collision cylinder body, and the anti-collision energy absorbing device is arranged between the upright post cylinder bottom and the anti-collision cylinder body, thereby being convenient for timely replacement. The method comprises the steps of assembling a stand column cylinder bottom and a scour prevention cylinder body, loading the stand column cylinder bottom into the scour prevention cylinder body, guiding and sealing the upper end surface of the cylinder body by using a scour prevention guide sleeve, and finally connecting the guide sleeve with the scour prevention cylinder body by using an angle steel welding mode. The utility model has the advantages of simple and reliable structure, convenient installation, lower cost and simple process, can prolong the service life of the stand column of the hydraulic support, reduces the use cost for customers, and is convenient for popularization and application. The utility model can greatly reduce the impact load born by the upright post, achieve the effect of protecting the upright post, improve the bottom stress condition of the upright post of the mining hydraulic support, reduce the influence of rock burst on the upright post, improve the supporting stability of the hydraulic support, ensure the safe and efficient exploitation of the underground mining working surface and prolong the service life of the hydraulic support.
Drawings
FIG. 1 is a schematic structural view of a shock-resistant and energy-absorbing device for a hydraulic support upright post;
FIG. 2 is a schematic cross-sectional view of the impact-resistant and energy-absorbing device for the hydraulic support upright post;
FIG. 3 is a schematic view of the use state of the impact protection device according to the present utility model;
FIG. 4 is a schematic cross-sectional view of an impact device according to the present utility model;
FIG. 5 is a schematic view of a structure of an impact cylinder used in the impact device according to the present utility model;
fig. 6 is a schematic view of the structure of the cylinder bottom of the upright post used in the present utility model.
Wherein:
1-a base; 2-a first bowl; 3-a second bowl; 4-an anti-collision cylinder body; 5-triangular support pieces; 6-fixing the base; 7-a cylinder; 8-a guide sleeve; 9-an anti-impact energy absorbing device; 10-guide teeth.
Detailed Description
Referring to fig. 1 and 2, the utility model provides a shock-proof and energy-absorbing device for a hydraulic support upright post, which comprises a base 1, a first bowl body 2 and a second bowl body 3, wherein the first bowl body 2 and the second bowl body 3 are sequentially arranged on the base 1 from top to bottom. According to the utility model, the impact load generated by the two bowl bodies is buffered in a first stage (the action of the first bowl body 2) and a second stage (the action of the second bowl body 3), so that the impact load is absorbed, and the support stability of the stand column of the hydraulic support is improved.
The first bowl body 2 and the second bowl body 3 adopted by the utility model have the same structure, and the first bowl body 2 comprises a large-mouth end and a small-mouth end opposite to the large-mouth end; the small opening end of the first bowl body 2 is connected with the small opening end of the second bowl body 3; the large opening end of the second bowl body 3 is arranged on the base 1; the outer diameter of the large opening end of the first bowl body 2 is smaller than the outer diameter of the base 1.
The first bowl body 2 and the second bowl body 3 are of an integral structure, for example, the first bowl body 2 and the second bowl body 3 can be formed at one time in a 3D printing manner, the first bowl body 2 and the second bowl body 3 can be formed respectively first, then the first bowl body 2 and the second bowl body 3 are welded together, and the specific forming process is a conventional means in the art, and the utility model is not repeated. Preferably, a streamline structure is arranged between the first bowl body 2 and the second bowl body 3. A cavity structure is formed among the first bowl body 2, the second bowl body 3 and the base 1.
Referring to fig. 3 and 4, the utility model provides a collision preventing and absorbing device for a hydraulic support upright post, and also provides a collision preventing and absorbing device based on the collision preventing and absorbing device for the hydraulic support upright post, wherein the collision preventing and absorbing device comprises a collision preventing cylinder body 4 and the collision preventing and absorbing device 9 for the hydraulic support upright post, which is described above; the anti-collision cylinder body 4 is a cylindrical structure with an upper opening; the hydraulic support upright post is arranged in the anti-impact cylinder body along the axial direction of the anti-impact cylinder body by an anti-impact energy absorbing device and is connected with the bottom of the anti-impact cylinder body; the height of the anti-impact energy-absorbing device for the hydraulic support upright post is lower than that of the anti-impact cylinder body.
Referring to fig. 5, the impact cylinder includes a fixed base 6 and a cylinder 7 fixedly provided on the fixed base 6; the hydraulic support upright post is arranged in the cylinder body along the axial direction of the cylinder body by using the anti-impact energy-absorbing device and is connected with the bottom of the cylinder body; the height of the anti-impact energy-absorbing device for the hydraulic support upright post is lower than that of the cylinder body. The anti-collision cylinder body also comprises a triangular supporting plate 5; two sides of the triangular support piece 5 are respectively connected with the fixed base 6 and the cylinder; the triangular support pieces 5 are a plurality of, and a plurality of triangular support pieces 5 are evenly distributed in the circumferential direction of the cylinder.
The anti-collision device also comprises a guide sleeve 8; the guide sleeve 8 is in a circular ring shape; the inner diameter of the guide sleeve 8 is the same as that of the anti-collision cylinder body; the end face of the guide sleeve 8 is provided with guide teeth 10, and the upper surface of the anti-collision cylinder body is provided with guide grooves matched with the guide teeth 10; the guide sleeve 8 is arranged on the anti-collision cylinder body through the guide teeth 10 and the guide grooves. When the hydraulic support is used, the guide sleeve 8 is sleeved outside the column cylinder bottom (shown in fig. 6), then the guide sleeve 8 is arranged on the anti-impact cylinder body through the guide teeth 10 and the guide grooves, and the column cylinder bottom is arranged in the anti-impact cylinder body and fixedly connected with the anti-impact energy absorbing device through the hydraulic support column. The anti-impact energy-absorbing device for the hydraulic support upright post is arranged between the upright post cylinder bottom and the anti-impact cylinder body, so that the hydraulic support upright post is convenient to replace in time.
When the underground mining working face is subjected to rock burst, the generated impact load is transmitted to the upper end of the upright post through the top beam and acts on the cylinder bottom of the upright post, the safety valve cannot be opened in a quick response mode due to the transience of the rock burst, pressure relief is carried out, the structure of the hydraulic support can be damaged due to the rigid support of the support, and the stability of the hydraulic support is reduced. When the impact-resistant and energy-absorbing device for the hydraulic support stand column is arranged below the stand column cylinder bottom, most impact load is acted on the impact-resistant and energy-absorbing device for the hydraulic support stand column by the stand column, deformation occurs in the allowable stress range of materials, the impact load absorption effect is achieved, and the support stability of the hydraulic support stand column is improved.
Claims (10)
1. The utility model provides a hydraulic support stand is with scour protection energy-absorbing device which characterized in that: the anti-impact energy-absorbing device for the hydraulic support upright post comprises a base, a first bowl body and a second bowl body, wherein the first bowl body and the second bowl body are sequentially arranged on the base from top to bottom.
2. The impact-resistant and energy-absorbing device for a hydraulic support column according to claim 1, wherein: the first bowl body and the second bowl body are identical in structure.
3. The impact-resistant and energy-absorbing device for a hydraulic support column according to claim 2, wherein: the first bowl body comprises a large opening end and a small opening end opposite to the large opening end; the small opening end of the first bowl body is connected with the small opening end of the second bowl body; the large opening end of the second bowl body is arranged on the base; the external diameter of the big mouth end of the first bowl body is smaller than the external diameter of the base.
4. A hydraulic bracket post impact and energy absorbing device according to claim 3, wherein: the first bowl body and the second bowl body are of an integrated structure.
5. The impact-resistant and energy-absorbing device for a hydraulic support column according to claim 4, wherein: and a streamline structure is arranged between the first bowl body and the second bowl body.
6. The impact and energy absorbing device for a hydraulic support column according to any one of claims 1 to 5, wherein: and a cavity type structure is formed among the first bowl body, the second bowl body and the base.
7. A collision preventing device based on the collision preventing and absorbing device for the hydraulic support upright post according to claim 6, which is characterized in that: the anti-collision device comprises an anti-collision cylinder body and an anti-collision energy-absorbing device for the hydraulic support upright post according to claim 6; the anti-collision cylinder body is of a cylindrical structure with an opening at the upper part; the hydraulic support upright post is arranged in the anti-impact cylinder body along the axial direction of the anti-impact cylinder body by using an anti-impact energy-absorbing device and is connected with the bottom of the anti-impact cylinder body; the height of the anti-impact energy-absorbing device for the hydraulic support upright post is lower than that of the anti-impact cylinder body.
8. The impact device of claim 7, wherein: the anti-collision cylinder body comprises a fixed base and a cylinder body fixedly arranged on the fixed base; the hydraulic support upright post is arranged in the cylinder body along the axial direction of the cylinder body by using the anti-impact energy-absorbing device and is connected with the bottom of the cylinder body; the height of the anti-impact energy-absorbing device for the hydraulic support upright post is lower than that of the cylinder body.
9. The impact device of claim 8, wherein: the anti-collision cylinder body further comprises a triangular supporting plate; two sides of the triangular support piece are respectively connected with the fixed base and the cylinder; the triangular support pieces are multiple and uniformly distributed in the circumferential direction of the cylinder.
10. The impact protection device according to claim 7 or 8 or 9, characterized in that: the anti-collision device also comprises a guide sleeve; the guide sleeve is in a circular ring shape; the inner diameter of the guide sleeve is the same as that of the anti-collision cylinder body; the end face of the guide sleeve is provided with guide teeth, and the upper surface of the anti-collision cylinder body is provided with guide grooves matched with the guide teeth; the guide sleeve is arranged on the anti-collision cylinder body through the guide teeth and the guide grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322625685.6U CN220769501U (en) | 2023-09-26 | 2023-09-26 | Anti-collision energy absorbing device and anti-collision device for hydraulic support upright post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322625685.6U CN220769501U (en) | 2023-09-26 | 2023-09-26 | Anti-collision energy absorbing device and anti-collision device for hydraulic support upright post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220769501U true CN220769501U (en) | 2024-04-12 |
Family
ID=90614141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322625685.6U Active CN220769501U (en) | 2023-09-26 | 2023-09-26 | Anti-collision energy absorbing device and anti-collision device for hydraulic support upright post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220769501U (en) |
-
2023
- 2023-09-26 CN CN202322625685.6U patent/CN220769501U/en active Active
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