CN110700866A - Mining hydraulic prop - Google Patents
Mining hydraulic prop Download PDFInfo
- Publication number
- CN110700866A CN110700866A CN201911081649.XA CN201911081649A CN110700866A CN 110700866 A CN110700866 A CN 110700866A CN 201911081649 A CN201911081649 A CN 201911081649A CN 110700866 A CN110700866 A CN 110700866A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- plunger
- connecting lug
- mining hydraulic
- handle body
- 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.)
- Pending
Links
- 238000005065 mining Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims abstract description 4
- 239000007924 injection Substances 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 239000003245 coal Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
Images
Classifications
-
- 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
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/512—Arrangement of valves
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/517—Extension elements
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Actuator (AREA)
Abstract
A mining hydraulic prop comprises a plunger and a cylinder body, wherein the bottom and the top of the cylinder body are respectively provided with a base and a handle body, the plunger is slidably arranged in an inner cavity of the cylinder body and is in sliding sealing fit with the inner wall of the cylinder body through a piston head arranged at the lower end of the plunger, the periphery of the lower part of the cylinder body is sleeved with a valve seat, a three-way valve is arranged in the valve seat, the three-way valve is communicated with the bottom of the inner cavity of the cylinder body through a liquid injection channel arranged on the cylinder body, and the handle body is in sliding sealing fit with the outer cylindrical surface of the plunger and is; the top end of the plunger is fixedly connected with a top plate; the lower part of the top plate is respectively connected with a connecting lug plate A on two sides of the plunger, the upper end of the handle body is respectively connected with a connecting lug plate B on two sides of the piston, and the connecting lug plates A are connected with the connecting lug plates B through elastic connecting pieces. The normal recovery of post can be guaranteed to this pillar, can improve the factor of safety of strutting the operation to can guarantee to strut the work efficiency of operation.
Description
Technical Field
The invention relates to mining equipment, in particular to a mining hydraulic prop.
Background
The single hydraulic prop is used as support equipment for underground roadways and working faces of coal mines, and the performance of the single hydraulic prop plays an extremely important role in safety production of coal mines. In actual use, blocking often occurs, so that the plunger cannot be normally recovered, the working efficiency of underground supporting operation is seriously affected, and potential safety hazards are brought.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a mining hydraulic prop which can ensure the normal recovery of a movable prop, improve the safety coefficient of supporting operation and ensure the working efficiency of the supporting operation.
In order to achieve the purpose, the invention provides a mining hydraulic prop, which comprises a plunger and a cylinder body, wherein the bottom and the top of the cylinder body are respectively provided with a base and a handle body, the plunger is slidably arranged in an inner cavity of the cylinder body and is in sliding sealing fit with the inner wall of the cylinder body through a piston head arranged at the lower end of the plunger, the periphery of the lower part of the cylinder body is sleeved with a valve seat, a three-way valve is arranged in the valve seat, the three-way valve is communicated with the bottom of the inner cavity of the cylinder body through a liquid injection channel arranged on the cylinder body, and the handle body is in sliding sealing fit with the outer cylindrical surface of;
the top end of the plunger is fixedly connected with a top plate;
the lower part of the top plate is respectively connected with a connecting lug plate A on two sides of the plunger, the upper end of the handle body is respectively connected with a connecting lug plate B on two sides of the piston, and the connecting lug plates A are connected with the connecting lug plates B through elastic connecting pieces.
The elastic connecting piece is a tension spring.
The elastic connecting piece is a high-strength elastic rope.
The invention uses the spring to connect the handle body and the top plate at the top end of the plunger, which can provide elastic restoring force for the plunger, thereby pulling the plunger back to the cylinder body in time when the jam occurs. The normal recovery of post can be guaranteed to this pillar, can improve the factor of safety of strutting the operation to can guarantee to strut the work efficiency of operation.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure: 1. plunger, 2, cylinder body, 3, base, 4, handle body, 5, piston head, 6, connection otic placode A, 7, disk seat, 8, three way valve, 9, notes liquid passageway, 10, connection otic placode B, 11, elasticity connecting piece.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, a mining hydraulic prop comprises a plunger 1 and a cylinder body 2, wherein the bottom and the top of the cylinder body 2 are respectively provided with a base 3 and a handle body 4, the plunger 1 is slidably arranged in the inner cavity of the cylinder body 2 and is in sliding sealing fit with the inner wall of the cylinder body 2 through a piston head 5 arranged at the lower end of the plunger 1, the periphery of the lower part of the cylinder body 2 is sleeved with a valve seat 7, a three-way valve 8 is arranged in the valve seat 7, the three-way valve 8 is communicated with the bottom of the inner cavity of the cylinder body 2 through a liquid injection channel 9 arranged on the cylinder body 2, and the handle body 4 is in sliding sealing fit with the outer cylindrical surface of the;
the top end of the plunger 1 is fixedly connected with a top plate;
the lower part of the top plate is respectively connected with a connecting lug plate A6 at two sides of the plunger 1, the upper end of the handle body 4 is respectively connected with a connecting lug plate B10 at two sides of the piston, and the connecting lug plate A6 is connected with a connecting lug plate B10 through an elastic connecting piece 11.
The elastic connecting piece 11 is a tension spring.
The elastic connecting piece 11 is a high-strength elastic rope.
The handle body is connected with the top plate at the top end of the movable column through the spring, so that the elastic restoring force can be provided for the movable column, and the movable column can be pulled back into the cylinder body in time when jamming occurs. The normal recovery of post can be guaranteed to this pillar, can improve the factor of safety of strutting the operation to can guarantee to strut the work efficiency of operation.
Claims (3)
1. A mining hydraulic prop comprises a plunger and a cylinder body, wherein the bottom and the top of the cylinder body are respectively provided with a base and a handle body, the plunger is slidably arranged in an inner cavity of the cylinder body and is in sliding sealing fit with the inner wall of the cylinder body through a piston head arranged at the lower end of the plunger, the mining hydraulic prop is characterized in that the periphery of the lower part of the cylinder body is sleeved with a valve seat, a three-way valve is arranged in the valve seat, the three-way valve is communicated with the bottom of the inner cavity of the cylinder body through a liquid injection channel arranged on the cylinder body, and the handle body is in sliding sealing fit with the outer cylindrical surface of;
the top end of the plunger is fixedly connected with a top plate;
the lower part of the top plate is respectively connected with a connecting lug plate A on two sides of the plunger, the upper end of the handle body is respectively connected with a connecting lug plate B on two sides of the piston, and the connecting lug plates A are connected with the connecting lug plates B through elastic connecting pieces.
2. The mining hydraulic strut of claim 1, wherein the resilient connecting member is a tension spring.
3. The mining hydraulic strut of claim 1, wherein the resilient connecting member is a high strength resilient cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911081649.XA CN110700866A (en) | 2019-11-07 | 2019-11-07 | Mining hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911081649.XA CN110700866A (en) | 2019-11-07 | 2019-11-07 | Mining hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110700866A true CN110700866A (en) | 2020-01-17 |
Family
ID=69204536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911081649.XA Pending CN110700866A (en) | 2019-11-07 | 2019-11-07 | Mining hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110700866A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053595A (en) * | 1990-01-15 | 1991-08-07 | 中央冶金建筑托拉斯 | Jack |
| DE4401480C2 (en) * | 1993-07-14 | 1996-03-21 | Vos Richard Grubenausbau Gmbh | Removal stamp with integrated valve sleeve for a pressure relief valve |
| CN2579864Y (en) * | 2002-01-17 | 2003-10-15 | 洪友军 | Raising device for waste well pipe and raising machine composed of it |
| CN2581418Y (en) * | 2002-11-12 | 2003-10-22 | 燕山大学 | Electric hydraulic screw jack |
| CN201198446Y (en) * | 2008-04-18 | 2009-02-25 | 江晓星 | Claw type jack |
| CN102242636A (en) * | 2010-05-11 | 2011-11-16 | 乔言海 | Single hydraulic pillar |
| CN105569694A (en) * | 2016-01-13 | 2016-05-11 | 江苏华海钢结构有限公司 | Hydraulic prop for mining |
| CN209244591U (en) * | 2018-11-05 | 2019-08-13 | 陕西陕煤韩城矿业有限公司 | Gob side entry retaining Special individual hydraulic prop |
-
2019
- 2019-11-07 CN CN201911081649.XA patent/CN110700866A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1053595A (en) * | 1990-01-15 | 1991-08-07 | 中央冶金建筑托拉斯 | Jack |
| DE4401480C2 (en) * | 1993-07-14 | 1996-03-21 | Vos Richard Grubenausbau Gmbh | Removal stamp with integrated valve sleeve for a pressure relief valve |
| CN2579864Y (en) * | 2002-01-17 | 2003-10-15 | 洪友军 | Raising device for waste well pipe and raising machine composed of it |
| CN2581418Y (en) * | 2002-11-12 | 2003-10-22 | 燕山大学 | Electric hydraulic screw jack |
| CN201198446Y (en) * | 2008-04-18 | 2009-02-25 | 江晓星 | Claw type jack |
| CN102242636A (en) * | 2010-05-11 | 2011-11-16 | 乔言海 | Single hydraulic pillar |
| CN105569694A (en) * | 2016-01-13 | 2016-05-11 | 江苏华海钢结构有限公司 | Hydraulic prop for mining |
| CN209244591U (en) * | 2018-11-05 | 2019-08-13 | 陕西陕煤韩城矿业有限公司 | Gob side entry retaining Special individual hydraulic prop |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104879145A (en) | Mechanically-extendable constant-resistance shrinkable high-strength single prop | |
| CN204267061U (en) | For the compressing cylinder that allows of anchor pole and anchor cable | |
| CN204200248U (en) | A kind of coal mine hydraulic supporting column pilot operated check valve | |
| CN207087779U (en) | Crawler buffer spring mounting device of large crawler bulldozer | |
| CN110700866A (en) | Mining hydraulic prop | |
| CN202047846U (en) | Inserted hard-sealed manual reversing valve with automatic resetting device | |
| CN103510905A (en) | Underground stratification testing sampling instrument variable-diameter packing structure | |
| CN202544871U (en) | Manual change valve with spring return plug-in hard seal | |
| CN204004614U (en) | A kind of compound Pilot operated check valve | |
| CN107882514B (en) | Release type compensator | |
| CN203962006U (en) | Manual backwashing filter device core assembly | |
| KR101498468B1 (en) | Nitrogen gas charge valve for hydraulic breaker | |
| CN202544872U (en) | Sealing manual reversing valve with spring resetting cartridge valve pad | |
| CN204098834U (en) | A kind of oil tube anchor device | |
| CN205237978U (en) | Novel be used for valve installation draw disk seat instrument | |
| CN210509233U (en) | Shock-resistant upright post with high-elasticity detachable device | |
| CN220687363U (en) | Elastic anti-impact device for single telescopic upright post | |
| CN204299602U (en) | Spring rod-pulling type hydraulic support anti-impact device | |
| CN204663421U (en) | Hole sealing tube clamping device | |
| CN203463121U (en) | Plug-in type conical surface rigidity seal hydraulic control one-way valve | |
| CN209083273U (en) | A kind of underground reversing arrangement | |
| CN201972658U (en) | Blanking plug in oil pipe | |
| CN203230441U (en) | Two-way lock for plug-in hard-sealing balance jack | |
| CN202867399U (en) | Hydraulic cylinder piston and piston rod structure | |
| CN201924943U (en) | Hydraulic control one-way valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200117 |
|
| RJ01 | Rejection of invention patent application after publication |