CN218844344U - Anti-impact hydraulic support - Google Patents
Anti-impact hydraulic support Download PDFInfo
- Publication number
- CN218844344U CN218844344U CN202223032532.2U CN202223032532U CN218844344U CN 218844344 U CN218844344 U CN 218844344U CN 202223032532 U CN202223032532 U CN 202223032532U CN 218844344 U CN218844344 U CN 218844344U
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- support
- impact
- supporting
- shearing
- stand
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The utility model provides an impact-proof hydraulic support, cut the mechanism and install including base, stand, back timber, support the scour protection energy-absorbing mechanism at back timber top, the both ends of stand respectively with the base with the back timber is connected, be provided with the pressure release relief valve on the stand, it includes support cover, shearing post and shear plate to support to cut the mechanism, the shear plate sets up inside the top of support cover, the bottom of shearing post stretches into the top of supporting the cover and supporting on the shear plate, it is built-in to support to cut the mechanism scour protection energy-absorbing mechanism is inside, so that improve the static holding power of scour protection energy-absorbing mechanism. The anti-impact hydraulic support has the advantages of scientific design, capability of prolonging the unloading striving time of the safety valve, difficulty in damage of the stand column and high practicability.
Description
Technical Field
The utility model relates to a coal mine equipment, specific theory has related to a protecting against shock hydraulic support.
Background
The rock mass around a roadway or a working face is subjected to sudden and severe power damage due to instantaneous release of elastic deformation energy, and the occurrence frequency and the damage degree of the rock mass are increasingly severe along with increase of the mining depth of coal mine resources, so that the overall instability of a roadway supporting structure is often caused, and the safety production of a coal mine is seriously influenced.
The hydraulic support is an important supporting part in a roadway, the hydraulic support provides supporting force by means of a hydraulic upright post, the top of the hydraulic support is supported on a top plate of the roadway, a pressure relief safety valve is arranged on the hydraulic upright post, huge energy can be released at one moment when rock burst occurs, the time from the occurrence to the complete release of impact load is only a few milliseconds to a dozen milliseconds, the pressure relief safety valve is influenced by a mechanical state within the transient dynamic response time, the hydraulic support cannot be opened in time, or the instantaneous unloading capacity after the hydraulic support is opened cannot meet the requirements, so that the phenomena of bending of the upright post of the hydraulic support under pressure, breakage, cylinder explosion and the like occur, the normal supporting of the roadway is influenced, and the personal safety is endangered.
In order to solve the above problems, people are always seeking an ideal technical solution.
Disclosure of Invention
The utility model aims at the not enough of prior art to a protecting against shock hydraulic support that the design science, can prolong relief valve uninstallation time of striving for, stand are not fragile, the practicality is strong is provided.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: the utility model provides an impact-proof hydraulic support, includes base, stand, back timber, supports and shears the mechanism and install the scour protection energy-absorbing mechanism at back timber top, the both ends of stand respectively with the base with the back timber is connected, be provided with the pressure release relief valve on the stand, it includes to support shearing mechanism and supports cover, shearing post and shear plate to support shearing mechanism, the shear plate sets up inside the top of supporting the cover, the bottom of shearing post stretches into support the top of cover and support on the shear plate, it is built-in to support shearing mechanism inside the scour protection energy-absorbing mechanism, so that improve the static holding power of scour protection energy-absorbing mechanism.
Based on the above, the anti-impact energy absorption mechanism comprises a top plate, an upper energy absorption body and a lower energy absorption body, the top end of the shearing column is connected with the top plate, the bottom end of the supporting sleeve is in butt joint with the top beam, and the lower energy absorption body is installed on the top beam through a high-strength bolt.
Based on the above, the upper energy absorbing body and the lower energy absorbing body both adopt foam metal.
Based on the above, a limiting block and a limiting hole which are matched with each other are arranged between the bottom end of the support sleeve and the top beam.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model discloses a top beam top sets up scour protection energy-absorbing mechanism, and pass through support and cut the mechanism and strengthen the static holding power of scour protection energy-absorbing mechanism makes scour protection energy-absorbing mechanism can realize the stable support to the tunnel roof under static state, nevertheless when producing rock burst, the shear plate is at first cracked, scour protection energy-absorbing mechanism takes place to deform and absorbs the energy to extension impact load transmits the time of stand makes the pressure release can be accomplished to the release relief valve, the protection the stand is not crushed by the pressure, and it has the design science, can prolong the relief valve uninstallation and strive for the time, stand practicality is strong, not fragile advantage.
Drawings
Fig. 1 is a front view of the shock-proof hydraulic support of the present invention.
Fig. 2 is a side view of the impact-proof hydraulic support of the present invention.
Fig. 3 is an internal structure diagram of the middle anti-impact energy-absorbing mechanism of the present invention.
In the figure: 1. a base; 2. a column; 3. a top beam; 4. supporting the shearing mechanism; 5. the anti-impact energy absorption mechanism; 6. a pressure relief safety valve; 7. a limiting block; 8. a limiting hole; 9. a high-strength bolt; 41. a support sleeve; 42. shearing a column; 43. a shear plate; 51. a top plate; 52. an upper energy absorber; 53. a lower energy absorber.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
As shown in fig. 1-3, an impact-proof hydraulic support comprises a base 1, a stand column 2, a top beam 3, a supporting and shearing mechanism 4 and an impact-proof and energy-absorbing mechanism 5 installed at the top of the top beam 3, wherein two ends of the stand column 2 are respectively connected with the base 1 and the top beam 3, and a pressure relief valve 6 is arranged on the stand column 2.
The supporting and shearing mechanism 4 specifically comprises a supporting sleeve 41, a shearing column 42 and a shearing plate 43, wherein the shearing plate 43 is arranged inside the top end of the supporting sleeve 41, and the bottom end of the shearing column 42 extends into the top end of the supporting sleeve 41 and is supported on the shearing plate 43. The supporting and shearing mechanism 4 is arranged in the anti-impact and energy-absorption mechanism 5, so that the static supporting force of the anti-impact and energy-absorption mechanism 5 is improved.
Scour protection energy-absorbing mechanism 5 includes roof 51, the last energy-absorbing body 52 and the lower energy-absorbing body 53, cut the post 42 top with roof 51 is connected, go up the energy-absorbing body 52 with the lower energy-absorbing body 53 all adopts the foam metal, support cover 41 bottom with back timber 3 butt joint, support cover 41 bottom with be provided with mutually supporting stopper 7 and spacing hole 8 between the back timber 3 to avoid both transverse relative movement, the lower energy-absorbing body 53 is installed through high-strength bolt 9 on the back timber 3.
When the supporting and shearing mechanism 4 is used specifically, the static supporting force of the impact-resistant and energy-absorbing mechanism 5 is strengthened, so that the impact-resistant and energy-absorbing mechanism 5 can stably support a roadway roof in a static state, but when rock burst occurs, the shearing plate 43 is firstly broken, the upper energy-absorbing body 52 and the lower energy-absorbing body 53 collapse, and energy is absorbed, so that the time for transmitting impact load to the upright column 2 is prolonged, the pressure relief valve 6 completes pressure relief, and the upright column 2 is protected from being crushed.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the technical solution of the present invention, the present invention should be covered by the technical solution of the present invention.
Claims (4)
1. The utility model provides an impact-proof hydraulic support, includes base, stand and back timber, the both ends of stand respectively with the base with the back timber is connected, be provided with pressure release relief valve, its characterized in that on the stand: it still including supporting shearing mechanism and installing the scour protection energy-absorbing mechanism at back timber top, it is including supporting cover, shearing post and shear plate to support shearing mechanism, the shear plate sets up inside the top of supporting the cover, the bottom of shearing post stretches into the top of supporting the cover and supporting on the shear plate, it is built-in to support shearing mechanism scour protection energy-absorbing mechanism is inside, so that improve the static holding power of scour protection energy-absorbing mechanism.
2. An impact-resistant hydraulic mount as claimed in claim 1, wherein: the anti-impact energy absorption mechanism comprises a top plate, an upper energy absorption body and a lower energy absorption body, the top end of the shearing column is connected with the top plate, the bottom end of the supporting sleeve is in butt joint with the top beam, and the lower energy absorption body is installed on the top beam through a high-strength bolt.
3. An impact-resistant hydraulic mount as claimed in claim 2, wherein: the upper energy absorbing body and the lower energy absorbing body are both made of foam metal.
4. An impact-resistant hydraulic mount as claimed in claim 2 or claim 3 wherein: and a limiting block and a limiting hole which are matched with each other are arranged between the bottom end of the support sleeve and the top beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223032532.2U CN218844344U (en) | 2022-11-15 | 2022-11-15 | Anti-impact hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223032532.2U CN218844344U (en) | 2022-11-15 | 2022-11-15 | Anti-impact hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218844344U true CN218844344U (en) | 2023-04-11 |
Family
ID=87293956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223032532.2U Active CN218844344U (en) | 2022-11-15 | 2022-11-15 | Anti-impact hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218844344U (en) |
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2022
- 2022-11-15 CN CN202223032532.2U patent/CN218844344U/en active Active
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