CN2782934Y - Four-column hydraulic prop with anti-impact air bag - Google Patents
Four-column hydraulic prop with anti-impact air bag Download PDFInfo
- Publication number
- CN2782934Y CN2782934Y CN 200520071386 CN200520071386U CN2782934Y CN 2782934 Y CN2782934 Y CN 2782934Y CN 200520071386 CN200520071386 CN 200520071386 CN 200520071386 U CN200520071386 U CN 200520071386U CN 2782934 Y CN2782934 Y CN 2782934Y
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- CN
- China
- Prior art keywords
- pressure
- air bag
- air bags
- damage
- reduced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000035939 shock Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 230000034994 death Effects 0.000 description 2
- 231100000517 death Toxicity 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Images
Abstract
The utility model relates to a four-column hydraulic prop with an anti-impact air bag, particularly a prop of a mine coal face which is suitable for impacting mine pressure. Air bags fully filled with compressible high-pressure gas are additionally arranged in the hydraulic cavities of four movable columns. The air bags can also repeatedly inject gas. When the pressure is reduced, the air bags can be automatically reset. Therefore, the hydraulic support is protected from damage. When the pressure is reduced, the air bags can be automatically reset. Therefore, the hydraulic prop is protected from damage. The utility model has the advantages of less disposable investment, less time saving, labor saving, good impact resistance, repeated use and low cost using cost. The damage of ordinary supports and the casualty of staffs can be reduced.
Description
Technical field
The utility model relates to shock resistance air bag four-column type hydraulic support, is particularly useful for taking place the supporting of the mine coal-cutting work plane of impulsion pressure.
Background technology
Along with the increasing of the coal mining degree of depth, the problem of impulsion pressure becomes increasingly conspicuous, and has caused personnel's the injures and deaths and the loss of equipment.The four-column type hydraulic support is the common equipment of coal-face under the coal mine, and impulsion pressure takes place to cause the detonation of hydraulic support often and destroys, and can not re-use, and causes bigger economic loss and personnel's injures and deaths.Present colliery scene is installed big flow pressure-relief valve mainly for common hydraulic support and is protected, and effect is unsatisfactory.The support post big flow pressure-relief valve of power that is hit suddenly of living then plays the effect of fast pressure relief when impulsion pressure takes place, and support contracts under fast and makes support exempt from destruction like this, and still this method effect is unsatisfactory, and emulsion overflows easily fast and hurts sb.'s feelings.Thereby press for new shock proof hydraulic support and replace common hydraulic support.
Summary of the invention
In view of the problem that prior art exists, the purpose of this utility model provides a kind of existing original support function, and the shock resistance air bag four-column type hydraulic support of fast pressure relief is arranged again.
The utility model shock resistance air bag four-column type hydraulic support, it comprises the front-axle beam that is connected the back timber leading section, four posts alive that the caving shield that rearward end connects and middle part are connected at interval, caving shield and four posts alive are connected on the base, be respectively equipped with the high-pressure gasbag that is full of compressible gases at high pressure in the cylinder body of described four posts alive, high-pressure gasbag is made by rubber, and high-pressure gasbag is provided with charge valve.
The utility model shock resistance air bag four-column type hydraulic support is best suited for the supporting of the mine coal-cutting work plane that impulsion pressure takes place.Employing increases the air bag that is full of compressible gases at high pressure in four post hydraulic cavities alive, air bag also can carry out qi of chong channel ascending adversely repeatedly.Compare with common hydraulic support, it not only has all functions of common hydraulic support, can resist top board dynamic pressure (as periodic weighting) again and wait other dynamic phenomenon, thereby also can use at general mine.When impulsion pressure takes place suddenly by the live quick contraction of air bag in the post hydraulic cavities of support; absorbed the impact energy that top board discharges; pass through simulated test; when pressure that unexpected increase support is born; air bag can shrink fast; avoided the detonation or the destruction of support, thereby protected hydraulic support, made support when being subjected to external impact force suddenly, can avoid damaging.It has disposable less investment; At the mine that impulsion pressure easily takes place, the workman does not need to pay extra work, settles at one go, has saved workman's muscle power; Air bag when impulsion pressure takes place in the pillar can shrink fast, can automatically reset when pressure diminishes, and can repeatedly use, and greatly reduces use cost, can reduce the loss and the casualties of ordinary stent, has practicality widely.
Description of drawings
Accompanying drawing is the utility model structure chart.
Among the figure: front-axle beam-1 back timber-2 base-3 caving shield-4 post-5 air bag-6 alive
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
The utility model shock resistance air bag four-column type hydraulic support, it is by front-axle beam 1, back timber 2, base 3, caving shield 4, post 5 alive and high-pressure gasbag 6 are formed, front-axle beam 1 is connected back timber 2 leading sections, and caving shield 4 is connected the rearward end of back timber 2, and the post 5 of living is set to four, its plunger end is hinged on the back timber 2, its cylinder base is hinged on the base 3, and the bottom of caving shield 4 is hinged on the base 3 by hinge bar, and the high-pressure gasbag 6 that is full of compressible gases at high pressure is housed respectively in the cylinder body of four posts 5 alive, high-pressure gasbag 6 is made by rubber, and charge valve is housed on the air bag.Crushing that support post hydraulic cavities alive inner high voltage air bag 6 retraction strokes and impact cause adapts, when taking place suddenly, shrinks fast impulsion pressure by the air bag 6 in the cylinder hydraulic chamber of support post 5 alive, absorb the impact energy that top board discharges, thereby adapted to different mine working conditions.
Claims (2)
1. shock resistance air bag four-column type hydraulic support, it comprises the front-axle beam (1) that is connected back timber (2) leading section, four posts alive (5) that the caving shield (4) that rearward end connects and middle part are connected at interval, caving shield (4) and four posts alive (5) are connected on the base (3), it is characterized in that: be respectively equipped with the high-pressure gasbag (6) that is full of compressible gases at high pressure in the cylinder body of described four posts alive (5).
2. shock resistance air bag four-column type hydraulic support according to claim 1, it is characterized in that: described high-pressure gasbag (6) is made by rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071386 CN2782934Y (en) | 2005-04-26 | 2005-04-26 | Four-column hydraulic prop with anti-impact air bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071386 CN2782934Y (en) | 2005-04-26 | 2005-04-26 | Four-column hydraulic prop with anti-impact air bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2782934Y true CN2782934Y (en) | 2006-05-24 |
Family
ID=36767920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520071386 Expired - Fee Related CN2782934Y (en) | 2005-04-26 | 2005-04-26 | Four-column hydraulic prop with anti-impact air bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2782934Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056383A (en) * | 2019-05-05 | 2019-07-26 | 天地科技股份有限公司 | A kind of hydraulic support flexible side protecting device |
| CN110295929A (en) * | 2019-05-23 | 2019-10-01 | 天地科技股份有限公司 | A kind of hydraulic support checking motion |
| CN111878139A (en) * | 2020-08-05 | 2020-11-03 | 山东建筑大学 | Contractible water bag supporting leg and water bag unloading type anti-impact support |
-
2005
- 2005-04-26 CN CN 200520071386 patent/CN2782934Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056383A (en) * | 2019-05-05 | 2019-07-26 | 天地科技股份有限公司 | A kind of hydraulic support flexible side protecting device |
| CN110295929A (en) * | 2019-05-23 | 2019-10-01 | 天地科技股份有限公司 | A kind of hydraulic support checking motion |
| CN110295929B (en) * | 2019-05-23 | 2021-11-19 | 天地科技股份有限公司 | Hydraulic support anti-impact device |
| CN111878139A (en) * | 2020-08-05 | 2020-11-03 | 山东建筑大学 | Contractible water bag supporting leg and water bag unloading type anti-impact support |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060524 |