CN111101986A - Mining hydraulic prop - Google Patents
Mining hydraulic prop Download PDFInfo
- Publication number
- CN111101986A CN111101986A CN201911165752.2A CN201911165752A CN111101986A CN 111101986 A CN111101986 A CN 111101986A CN 201911165752 A CN201911165752 A CN 201911165752A CN 111101986 A CN111101986 A CN 111101986A
- Authority
- CN
- China
- Prior art keywords
- cylinder body
- plunger
- hydraulic prop
- mining hydraulic
- top plate
- 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
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000003245 coal Substances 0.000 description 2
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
-
- 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
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 circular top plate; and the upper part of the top plate is fixedly provided with connecting sleeves in the center and the circumferential direction surrounding the center, and a short strut is inserted into each connecting sleeve in a matching manner. The support column is provided with a plurality of supporting points, the number of the supporting points can be selected according to actual conditions, and various underground supporting requirements can be met.
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. The existing hydraulic prop is simple in structure and generally only provided with one supporting point, the underground supporting conditions are various, and sometimes the hydraulic prop of one supporting point cannot meet the supporting requirement.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a mining hydraulic prop which is provided with a plurality of supporting points, the number of the supporting points can be selected according to the actual situation, and the underground requirements of various supports can be met.
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 circular top plate;
and the upper part of the top plate is fixedly provided with connecting sleeves in the center and the circumferential direction surrounding the center, and a short strut is inserted into each connecting sleeve in a matching manner.
Preferably, the number of connecting sleeves is five.
Preferably, the short strut is provided with external threads on the outer part of the lower part thereof, the connecting sleeve is provided with internal threads inside thereof, and the short strut is fixedly connected with the connecting sleeve through thread matching.
According to the invention, the plurality of connecting sleeves are arranged on the top plate, and the short struts are connected in a matched manner through the threads, so that one hydraulic strut is provided with a plurality of supporting points, the number and the arrangement mode of the short struts can be selected according to actual conditions, and various supporting requirements can be met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a top view of the present invention.
In the figure: 1. the piston comprises a plunger, 2, a cylinder body, 3, a base, 4, a handle body, 5, a piston head, 6, a connecting sleeve, 7, a valve seat, 8, a three-way valve, 9, a liquid injection channel, 10, a short strut, 11 and a top plate.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1 and 2, 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 plunger;
the top end of the plunger 1 is fixedly connected with a circular top plate 11;
the upper part of the top plate 11 is fixed with connecting sleeves 6 at the center and on the circumference surrounding the center, and a short strut 10 is inserted in each connecting sleeve 6 in a matching way.
The number of connecting sleeves 6 is five.
The outer portion of the lower portion of the short strut 10 is provided with external threads, the inner portion of the connecting sleeve 6 is provided with internal threads, and the short strut 10 is fixedly connected with the connecting sleeve 6 through thread matching.
Through set up a plurality of connecting sleeve on the roof to be connected with the stub through screw-thread fit, thereby can make a hydraulic prop have a plurality of support points, can select the quantity and the mode of arranging of stub according to actual conditions, thereby can satisfy multiple needs of strutting.
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 circular top plate;
and the upper part of the top plate is fixedly provided with connecting sleeves in the center and the circumferential direction surrounding the center, and a short strut is inserted into each connecting sleeve in a matching manner.
2. A mining hydraulic prop according to claim 1, characterized in that the number of connecting sleeves is five.
3. A mining hydraulic prop according to claim 1 or 2, characterized in that the lower part of the stub prop is externally provided with an external thread and the interior of the connecting sleeve is provided with an internal thread, the stub prop being fixedly connected with the connecting sleeve by means of a screw-thread fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165752.2A CN111101986A (en) | 2019-11-25 | 2019-11-25 | Mining hydraulic prop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911165752.2A CN111101986A (en) | 2019-11-25 | 2019-11-25 | Mining hydraulic prop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111101986A true CN111101986A (en) | 2020-05-05 |
Family
ID=70420856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911165752.2A Pending CN111101986A (en) | 2019-11-25 | 2019-11-25 | Mining hydraulic prop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111101986A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003106099A (en) * | 2001-09-28 | 2003-04-09 | Okumura Corp | Detachable destressing apparatus for box culvert tunnel, and method for mounting the apparatus in box culvert tunnel |
| US20080308777A1 (en) * | 2007-06-15 | 2008-12-18 | Mccaleb Howard L | Modular jack apparatus for lifting floors and other structures |
| CN204436419U (en) * | 2015-02-04 | 2015-07-01 | 中国矿业大学 | Simple and easy interim hydraulic pressure advanced stand device |
| CN204552775U (en) * | 2015-04-10 | 2015-08-12 | 孙圣明 | A kind of temporary support device for coal mine heading |
| CN105569694A (en) * | 2016-01-13 | 2016-05-11 | 江苏华海钢结构有限公司 | Hydraulic prop for mining |
| CN207660629U (en) * | 2017-09-29 | 2018-07-27 | 高会国 | A kind of mine individual hydraulic prop |
| CN108625887A (en) * | 2018-06-15 | 2018-10-09 | 韦立会 | A kind of mine hydraulic prop |
| CN208057135U (en) * | 2018-03-07 | 2018-11-06 | 山东科技大学 | A kind of mining floated type single hydraulic prop stay device |
| CN208486900U (en) * | 2018-06-08 | 2019-02-12 | 刘云龙 | Adjustable supporting is used in a kind of support of coal mine roadway |
| CN208900115U (en) * | 2018-10-09 | 2019-05-24 | 徐州中安科技股份有限公司 | A kind of mine individual hydraulic prop |
| CN110080809A (en) * | 2019-04-28 | 2019-08-02 | 贵州大学 | A kind of coal mining preventing swaying mine hole support device |
-
2019
- 2019-11-25 CN CN201911165752.2A patent/CN111101986A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003106099A (en) * | 2001-09-28 | 2003-04-09 | Okumura Corp | Detachable destressing apparatus for box culvert tunnel, and method for mounting the apparatus in box culvert tunnel |
| US20080308777A1 (en) * | 2007-06-15 | 2008-12-18 | Mccaleb Howard L | Modular jack apparatus for lifting floors and other structures |
| CN204436419U (en) * | 2015-02-04 | 2015-07-01 | 中国矿业大学 | Simple and easy interim hydraulic pressure advanced stand device |
| CN204552775U (en) * | 2015-04-10 | 2015-08-12 | 孙圣明 | A kind of temporary support device for coal mine heading |
| CN105569694A (en) * | 2016-01-13 | 2016-05-11 | 江苏华海钢结构有限公司 | Hydraulic prop for mining |
| CN207660629U (en) * | 2017-09-29 | 2018-07-27 | 高会国 | A kind of mine individual hydraulic prop |
| CN208057135U (en) * | 2018-03-07 | 2018-11-06 | 山东科技大学 | A kind of mining floated type single hydraulic prop stay device |
| CN208486900U (en) * | 2018-06-08 | 2019-02-12 | 刘云龙 | Adjustable supporting is used in a kind of support of coal mine roadway |
| CN108625887A (en) * | 2018-06-15 | 2018-10-09 | 韦立会 | A kind of mine hydraulic prop |
| CN208900115U (en) * | 2018-10-09 | 2019-05-24 | 徐州中安科技股份有限公司 | A kind of mine individual hydraulic prop |
| CN110080809A (en) * | 2019-04-28 | 2019-08-02 | 贵州大学 | A kind of coal mining preventing swaying mine hole support device |
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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: 20200505 |
|
| RJ01 | Rejection of invention patent application after publication |