CN205315022U - Mining hollow pillar - Google Patents
Mining hollow pillar Download PDFInfo
- Publication number
- CN205315022U CN205315022U CN201520509818.6U CN201520509818U CN205315022U CN 205315022 U CN205315022 U CN 205315022U CN 201520509818 U CN201520509818 U CN 201520509818U CN 205315022 U CN205315022 U CN 205315022U
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- ring
- orienting sleeve
- seal ring
- little
- dynamic seal
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Abstract
The utility model provides a mining hollow pillar, relate to coal mine hydraulic support telescoping mast, cylinder body bottom overcoat has outer guide ring and piston movable sealing ring in this stand, well cylinder body is through outer guide ring and piston movable sealing ring and the contact of outside cylinder inner wall, the hollow post of living is through outer guide ring and piston movable sealing ring and outside cylinder inner wall or the contact of well cylinder body inner wall, the uide bushing is through interior guide ring, piston rod movable sealing ring and dustproof sealing ring and well cylinder body outer wall or the hollow post outer wall contact of living, the uide bushing passes through static seal circle and outside cylinder inner wall or the contact of well cylinder body inner wall, hollow pillar will live the hydraulic pressure force's that the post receives position and rise to the post column cap terminal surface of living by traditional at the post plunger bottom face of living, live the tradition in the stress of post and become " drawing " by " pushing away " to improved post alive itself the guidance quality can, strengthened the anti bending property of whole of stand, reduced the weight of stand simultaneously, practiced thrift material cost and processing cost.
Description
Technical field
The utility model relates to a kind of mining hollow column, refers in particular to for coal-mine hydraulic support hydraulic pressure single-telescopic prop and Hydraulic Double telescopic column.
Background technology
Column a kind of plays a supportive role between hydraulic support foundation and back timber, mainly for support back timber provides an anchorage force, is main stressed member, is also to provide the major parts of support action simultaneously. Require the features such as high strength, highly reliable, long service life. The traditional column used on current coal-mine hydraulic support is mechanical extension bar prop, hydraulic pressure single-telescopic prop and Hydraulic Double telescopic column.
The hydraulic pressurization mode of above-mentioned three kinds of traditional columns is the same, all hydraulic pressure power is loaded into the plunger end face of post alive and (or) middle cylinder body, the result that loading causes like this is that the moment that the middle cylinder body of column and internal force (hydraulic pressure power) point of application of post of living make use (post column cap of living) to external force (offset loading force) is very big, like this, even if column is lived, post column cap is subject to less offset loading force, can make column that bigger unbalance loading occurs, thus cause column cylinder, cylinder mouth or orienting sleeve distortion, flexible motion is done under by the effect of offset loading force, the serious damage that the sealing of column causes, even inboard wall of cylinder block is also caused and seriously pull phenomenon. such loading regime post that makes to live is in the state of " pushing away ", owing to the guidance quality of " pushing away " state is not good, causes that the intensity of tradition column is not high, reliability is low, reduces the work-ing life of tradition column. therefore, develop a kind of novel column or tradition column is improved, and the colliery column meeting production requirement is very important.
Summary of the invention
The purpose of this utility model is to overcome weak point of the prior art, it is provided that a kind of novel hollow column, is applicable to coal-mine hydraulic support hydraulic pressure single-telescopic prop and Hydraulic Double telescopic column.
The technical problems to be solved in the utility model is realized by following scheme:
A kind of mining hollow column, is divided into single flexible hollow column and two flexible hollow column, and the described list hollow column that stretches comprises outer cylinder body; Described two flexible hollow columns comprise outer cylinder body, middle cylinder body and big orienting sleeve, and described middle cylinder base overcoat has outer guiding ring and piston dynamic seal ring, and middle cylinder body is by outer guiding ring and piston dynamic seal ring and outer cylinder body contact internal walls; Big orienting sleeve inner sleeve has imperial palace guiding ring, the big dynamic seal ring of piston rod and big dust-proof seal ring, and big orienting sleeve is contacted with middle outer wall of cylinder block with big dust-proof seal ring by lead ring, the big dynamic seal ring of piston rod of imperial palace; Big orienting sleeve overcoat has big orienting sleeve static sealing ring, and big orienting sleeve is by big orienting sleeve static sealing ring and outer cylinder body contact internal walls; It is characterized in that: the described list hollow column that stretches also comprises: hollow post alive, orienting sleeve, wherein:
The bottom overcoat of described hollow post alive has outer guiding ring and piston dynamic seal ring, and hollow post alive is by outer guiding ring and piston dynamic seal ring and outer cylinder body contact internal walls;
Described orienting sleeve inner sleeve has interior guiding ring, piston rod dynamic seal ring and dust-proof seal ring, and orienting sleeve is contacted with hollow column outer wall alive by interior guiding ring, piston rod dynamic seal ring and dust-proof seal ring;
Described orienting sleeve overcoat has orienting sleeve static sealing ring, and orienting sleeve is by orienting sleeve static sealing ring and outer cylinder body contact internal walls;
Described two flexible hollow column also comprises: hollow post alive, little orienting sleeve, wherein:
Described hollow column bottom alive overcoat has outer guiding ring and piston dynamic seal ring, and hollow post alive is contacted with middle inboard wall of cylinder block with piston dynamic seal ring by outer guiding ring;
Described little orienting sleeve inner sleeve has little interior guiding ring, the little dynamic seal ring of piston rod and little dust-proof seal ring, and little orienting sleeve is contacted with hollow column outer wall alive with little dust-proof seal ring by little interior guiding ring, the little dynamic seal ring of piston rod;
Described little orienting sleeve overcoat has little orienting sleeve static sealing ring, and little orienting sleeve is contacted with middle inboard wall of cylinder block by little orienting sleeve static sealing ring.
Further, described post hollow alive is welded by screw thread and solder design by column jecket and column cap, is provided with outer guiding annular groove and piston dynamic seal groove bottom column jecket, and column cap side is provided with the inlet opening of filling deicing fluid.
Further, described outer guiding ring is installed in outer guiding annular groove;
Further, described piston dynamic seal ring is installed in piston dynamic seal groove.
Further, described inlet opening is provided with screw plug.
Further, it is provided with static sealing ring between described screw plug and inlet opening.
Useful effect
1, hollow column described in the utility model is adopted, by the hydraulic pressure power position suffered by post of living by traditional column cap end face rising to post alive at (plunger) end face at the bottom of post of living, the strained condition of post alive for tradition is turned into " drawing " from " pushing away ", improve the steering capability of post alive itself, improve the global reliability of column.
2, hollow column described in the utility model is adopted, thus shorten the moment that hydraulic pressure power is subject to external force (offset loading force) Resultant force to post of living greatly, the very big shortening of moment, significantly improves the offset load resistance of post column cap alive, enhances the overall resistance to bending energy of column.
3, adopt hollow column described in the utility model, reduce the weight of column, saved material cost and tooling cost.
Accompanying drawing explanation
Fig. 1 is that a kind of mining list stretches the structural representation of hollow column;
1, outer cylinder body, 2, outer guiding ring, 3, piston dynamic seal ring, 4, hollow post alive, 5, orienting sleeve static sealing ring, 6, interior guiding ring, 7, piston rod dynamic seal ring, 8, dust-proof seal ring, 9, orienting sleeve, 10, screw plug, 11, static sealing ring, 12, column cap, 13, weld seam, 14, inlet opening, 15, screw thread, 16, column jecket, 17, outer guiding annular groove, 18, piston packing groove.
Fig. 2 is the structural representation of a kind of mining two flexible hollow column;
1, outer cylinder body, 2, middle cylinder body, 3, lead outside hollow post alive ring, 4, lead outside middle cylinder ring, 5, hollow column piston dynamic seal ring alive, 6, middle cylinder piston dynamic seal ring, 7, enter back liquid deep hole, 8, hollow post alive, 9, big orienting sleeve, 10, little orienting sleeve, 11, imperial palace guiding ring, 12, little interior guiding ring, 13, the big dynamic seal ring of piston rod, 14, big orienting sleeve static sealing ring, 15, big dust-proof seal ring, 16, the little dynamic seal ring of piston rod, 17, little orienting sleeve static sealing ring, 18, little dust-proof seal ring, 19, screw plug, 20, static sealing ring, 21, column cap, 22, inlet opening, 23, weld seam, 24, screw thread, 25, column jecket, 26, outer guiding annular groove, 27, piston packing groove.
Embodiment
By reference to the accompanying drawings, the utility model is described further:
According to shown in Fig. 1, a kind of mining list stretches the structure of hollow column, comprises outer cylinder body 1, hollow post 4 alive, orienting sleeve 9 and screw plug 10, and each sealing-ring (2,3,5,6,7,8).
Hollow post alive 4 is become with weld seam 13 connecting welding by screw thread 15 with column cap 12 by column jecket 16, is provided with outer guiding annular groove 17 and piston packing groove 18 bottom column jecket 16. Described outer guiding ring 2 is installed in outer guiding annular groove 17, and described piston dynamic seal ring 3 is installed in piston packing groove 18. Hollow post alive 4 is by outer guiding ring 2 and piston dynamic seal ring 3 and outer cylinder body 1 contact internal walls. Orienting sleeve 9 inner sleeve has interior guiding ring 6, piston rod dynamic seal ring 7 and dust-proof seal ring 8, and orienting sleeve 9 is by interior guiding ring 6, piston rod dynamic seal ring 7 and dust-proof seal ring 8 and hollow post 4 wall contacts alive. Orienting sleeve 9 overcoat has orienting sleeve static sealing ring 5, and orienting sleeve 9 is by orienting sleeve static sealing ring 5 and outer cylinder body 1 contact internal walls. Column cap 12 side is provided with the inlet opening 14 of filling deicing fluid, and inlet opening 14 is real by static sealing ring 11 seal plug with screw plug 10 when hollow column normal operation.
According to shown in Fig. 2, the structure of a kind of mining two flexible hollow column, comprise outer cylinder body 1, middle cylinder body 2, hollow post 8 alive, big orienting sleeve 9, little orienting sleeve 10 and screw plug 19, and each sealing-ring (3,4,5,6,11,12,13,14,15,16,17,18,20).
Bottom middle cylinder body 2, overcoat leads outside having middle cylinder ring 4 and middle cylinder piston dynamic seal ring 6, and middle cylinder body 2 is by ring 4 and middle cylinder piston dynamic seal ring 6 and outer cylinder body 1 contact internal walls of leading outside middle cylinder.
Hollow post alive 8 is become with weld seam 23 connecting welding by screw thread 24 with column cap 21 by column jecket 25, is provided with outer guiding annular groove 26 and piston packing groove 27 bottom column jecket 25. The ring 3 that leads outside described post hollow alive is installed in outer guiding annular groove 26, described column piston dynamic seal ring 5 hollow alive is installed in piston packing groove 27, and hollow post 8 alive is by ring 3 and hollow column piston dynamic seal ring alive 5 and outer cylinder body 1 contact internal walls of leading outside hollow post alive. Column cap 21 side is provided with the inlet opening 22 of filling deicing fluid, and inlet opening 22 is real by static sealing ring 20 seal plug with screw plug 19 when hollow column normal operation.
Big orienting sleeve 9 inner sleeve has imperial palace guiding ring 11, the big dynamic seal ring 13 of piston rod and big dust-proof seal ring 15, and big orienting sleeve 9 is by imperial palace guiding ring 11, the big dynamic seal ring of piston rod 13 and big dust-proof seal ring 15 and middle cylinder body 2 wall contacts. Big orienting sleeve 9 overcoat has big orienting sleeve static sealing ring 14, and big orienting sleeve 9 is by big orienting sleeve static sealing ring 14 and outer cylinder body 1 contact internal walls.
Little orienting sleeve 10 inner sleeve has little interior guiding ring 12, the little dynamic seal ring of piston rod 16 and little dust-proof seal ring 18, and little orienting sleeve 10 is by little interior guiding ring 12, the little dynamic seal ring of piston rod 16 and little dust-proof seal ring 18 and hollow post 8 wall contacts alive. Little orienting sleeve 10 overcoat has little orienting sleeve static sealing ring 17, and little orienting sleeve 10 is by little orienting sleeve static sealing ring 17 and middle cylinder body 2 contact internal walls.
Claims (5)
1. a mining hollow column, is divided into single flexible hollow column and two flexible hollow column, and the described list hollow column that stretches comprises outer cylinder body; Described two flexible hollow columns comprise outer cylinder body, middle cylinder body and big orienting sleeve, and described middle cylinder base overcoat has outer guiding ring and piston dynamic seal ring, and middle cylinder body is by outer guiding ring and piston dynamic seal ring and outer cylinder body contact internal walls; Big orienting sleeve inner sleeve has imperial palace guiding ring, the big dynamic seal ring of piston rod and big dust-proof seal ring, and big orienting sleeve is contacted with middle outer wall of cylinder block with big dust-proof seal ring by lead ring, the big dynamic seal ring of piston rod of imperial palace; Big orienting sleeve overcoat has big orienting sleeve static sealing ring, and big orienting sleeve is by big orienting sleeve static sealing ring and outer cylinder body contact internal walls; It is characterized in that: the described list hollow column that stretches also comprises: hollow post alive, orienting sleeve, wherein:
The bottom overcoat of described hollow post alive has outer guiding ring and piston dynamic seal ring, and hollow post alive is by outer guiding ring and piston dynamic seal ring and outer cylinder body contact internal walls;
Described orienting sleeve inner sleeve has interior guiding ring, piston rod dynamic seal ring and dust-proof seal ring, and orienting sleeve is contacted with hollow column outer wall alive by interior guiding ring, piston rod dynamic seal ring and dust-proof seal ring;
Described orienting sleeve overcoat has orienting sleeve static sealing ring, and orienting sleeve is by orienting sleeve static sealing ring and outer cylinder body contact internal walls;
Described two flexible hollow column also comprises: hollow post alive, little orienting sleeve, wherein:
Described hollow column bottom alive overcoat has outer guiding ring and piston dynamic seal ring, and hollow post alive is contacted with middle inboard wall of cylinder block with piston dynamic seal ring by outer guiding ring;
Described little orienting sleeve inner sleeve has little interior guiding ring, the little dynamic seal ring of piston rod and little dust-proof seal ring, and little orienting sleeve is contacted with hollow column outer wall alive with little dust-proof seal ring by little interior guiding ring, the little dynamic seal ring of piston rod;
Described little orienting sleeve overcoat has little orienting sleeve static sealing ring, and little orienting sleeve is contacted with middle inboard wall of cylinder block by little orienting sleeve static sealing ring.
2. the mining hollow column of one according to claim 1, it is characterized in that: described post hollow alive is welded by screw thread and solder design by column jecket and column cap, being provided with outer guiding annular groove and piston dynamic seal groove bottom column jecket, column cap side is provided with the inlet opening of filling deicing fluid.
3. the mining hollow column of one according to claim 1 and 2, it is characterised in that: described outer guiding ring is installed in outer guiding annular groove; Described piston dynamic seal ring is installed in piston dynamic seal groove.
4. the mining hollow column of one according to claim 2, it is characterised in that: described inlet opening is provided with screw plug.
5. the mining hollow column of one according to claim 4, it is characterised in that: it is provided with static sealing ring between described screw plug and inlet opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509818.6U CN205315022U (en) | 2015-07-08 | 2015-07-08 | Mining hollow pillar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520509818.6U CN205315022U (en) | 2015-07-08 | 2015-07-08 | Mining hollow pillar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205315022U true CN205315022U (en) | 2016-06-15 |
Family
ID=56188021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520509818.6U Expired - Fee Related CN205315022U (en) | 2015-07-08 | 2015-07-08 | Mining hollow pillar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205315022U (en) |
-
2015
- 2015-07-08 CN CN201520509818.6U patent/CN205315022U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20170708 |