CN201078237Y - Single expansion suspending type hydraulic pressure upright post - Google Patents
Single expansion suspending type hydraulic pressure upright post Download PDFInfo
- Publication number
- CN201078237Y CN201078237Y CNU2007200409860U CN200720040986U CN201078237Y CN 201078237 Y CN201078237 Y CN 201078237Y CN U2007200409860 U CNU2007200409860 U CN U2007200409860U CN 200720040986 U CN200720040986 U CN 200720040986U CN 201078237 Y CN201078237 Y CN 201078237Y
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- Prior art keywords
- oil cylinder
- type hydraulic
- post
- hole
- hydraulic vertical
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- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 11
- 239000002131 composite material Substances 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000005065 mining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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Abstract
A single-telescopic suspended hydraulic column comprises a top cover, a cylinder sleeve, an oil cylinder, a plunger, a base, a guiding ring and a sealing element; wherein, an upper end of the top cover is an ear plate or a hemispheroid and a lower end of the base is an ear plate or a hemispheroid. The top cover is arranged on the plunger and the oil cylinder is positioned in the base. A lower part of the plunger is sleeved in the oil cylinder; the cylinder sleeve is disposed between an external part of the plunger and an end of the oil cylinder; a liquid in and out through hole with a variable seal cavity of small capacity is positioned on the cylinder sleeve and an oil seal is arranged on the liquid in and out through hole. The utility model is suitable for using on a hydraulic support of coal mineral underground composite coal winning mechanized working face and has the advantages of reasonable and compact structure, weldless structure, good stability, high intensity, large bearing capacity and working stroke, light weight, good bearing capacity, safe, reliable and convenient operation, long service life and low cost.
Description
Technical field
The utility model relates to a kind of single extension suspended type hydraulic vertical prop, is particularly useful for the hydraulic support that the machinery of performing comprehensive coal mining under the coal mine of mine chemical industry is made face.
Background technology
Hydraulic support is that performing comprehensive coal mining machinery chemical industry is made one of face imperative equipment under the coal mine.The hydraulic support that uses in the China's coal-mine is by the different standing supports that are divided into design feature of its support pattern to top board, shield, chock shield, caving roof coal hydraulic support, light hydraulic support, extraordinary hydraulic support etc., and hydraulic vertical prop be hydraulic support can safe and effective supported face top board critical component.The use of hydraulic support has brought great benefit for the safe back production and the High-efficient Production of coal-face.The hydraulic vertical prop that uses on the hydraulic support is mainly combined by live post and welding such as piston, oil cylinder and base at present, its complex process, the production difficulty is big, the cost of production height, and weld seam is the weakest link of the hydraulic vertical prop of hydraulic support, specifically sees " the coal mine support handbook chapter 4 second joint content that the Coal Industry Press published in 1993 and 2006 publish.Thereby following problem appears in long-term The field: 1) because hydraulic vertical prop has welding line structure, the commissure will produce fine crack in the manufacturing process of weld seam, fine crack is expanded fast under the effect of highly pressurised liquid and is made welding seam failure, thereby causes the roof fall casualty accident; 2) when face roof is pressed, to press in the hydraulic vertical prop of hydraulic support to increase, oil cylinder inner surface will produce radial displacement makes the oil cylinder internal diameter become big, causes the sealing on the piston loose, thereby reveals in producing.Along with the deep mining in colliery, the frequency of bump increases, and now will increase fast with internal leakage on the hydraulic vertical prop and welding seam failure, that is to say, internal leakage and welding seam failure are the existing main potential safety hazards that exists with hydraulic vertical prop.Therefore, improvement and the substantial new technical products to existing hydraulic support hydraulic vertical prop has realistic meaning and historic significance.
The utility model content
The purpose of this utility model is the deficiency that overcomes in the prior art, provides a kind of simple in structure, no weld seam, and no piston, no internal leakage, safety is good, the intensity height, cost is low, the single extension suspended type hydraulic vertical prop that the life-span is long.
Single extension suspended type hydraulic vertical prop of the present utility model, it is that otic placode or hemispheroidal top cover, cylinder sleeve, oil cylinder, the post of living, lower end are that otic placode or hemispheroidal base, guide ring and seal constitute by the upper end, wherein the upper end is located on the post alive for the hemispheroidal top cover of otic placode, it is in otic placode or the hemispheroidal end Cuo that oil cylinder is located at the lower end, post alive bottom is contained in the oil cylinder, is combined into a bigger variable seal chamber by connecting steel wire, clip and guide ring; Cylinder sleeve be located at post alive outside with oil cylinder between, form a less variable seal chamber by clip and guide ring, seal; The lower end is the liquid in-out through hole that otic placode or hemispheroidal base are provided with the bigger variable seal chamber of connection, and the liquid in-out through hole is respectively equipped with oil sealing; Cylinder sleeve is provided with the liquid in-out through hole that is communicated with less variable seal chamber, is respectively equipped with oil sealing on the liquid in-out through hole.
Described post lower outer diameter alive is provided with the groove of settling clip, and clip is provided with seal in both sides up and down; Described guide ring is located on the excircle of clip, and between the oil cylinder inner surface for being slidingly matched; Described upper end is that otic placode or hemispheroidal top cover are provided with connecting hole; Described lower end is that otic placode or hemispheroidal base are provided with connecting hole or two halves connect blind hole; The liquid in-out through hole of described cylinder sleeve is provided with oil sealing; Be equipped with oil sealing on the liquid in-out through hole of described base; Described post alive and oil cylinder are made with metal or glass-reinforced plastic material.
Single extension suspended type hydraulic vertical prop of the present utility model is applicable to that performing comprehensive coal mining machinery chemical industry is done on the hydraulic support of face, compared with prior art under the coal mine, it is simple in structure, compact and reasonable, no weld seam, no piston, no internal leakage, safety is good, good stability, the intensity height of post alive, supporting capacity is big, and impulse stroke is big, column in light weight, good airproof performance, the antiseptic property height removes and installs conveniently, good stability, easy to use, the life-span is long, and cost is low, alleviate working strength of workers greatly, had practicality widely.
Description of drawings
Fig. 1 is the utility model embodiment one main shape assumption diagram of looking.
Fig. 2 is the utility model embodiment one sectional structure chart.
Fig. 3 is the utility model embodiment two sectional structure charts.
Fig. 4 is the utility model embodiment three main shape assumption diagrams of looking.
Fig. 5 is the utility model embodiment three sectional structure charts.
Fig. 6 is the utility model embodiment four sectional structure charts.
Fig. 7 is the utility model embodiment five main shape assumption diagrams of looking.
Fig. 8 is the utility model embodiment five sectional structure charts.
Fig. 9 is the utility model embodiment six sectional structure charts.
The specific embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Embodiment one, Fig. 1 are shown in Figure 2, and the main upper end of single extension suspended type hydraulic vertical prop is compositions such as hemispheroidal base 5, clip 16 and guide ring, seal, connection steel wire for hemispheroidal top cover 1, cylinder sleeve 2, oil cylinder 3, the post 4 of living, lower end.The upper end is located on the post 4 alive for hemispheroidal top cover 1, has the connecting hole that connects the hydraulic support back timber on the top cover 1, and this connecting hole is a through hole; Top cover 1 is provided with seal 12 with the contact surface of the post 4 of living, and is provided with and is connected steel wire 11 with what top cover 1 and work post 4 linked together; The post 4 of living is contained in the oil cylinder 3, it is in the hemispheroidal base 5 that oil cylinder 3 bottoms are located at the lower end, hemispheroidal base 5 is provided with the two halves that connect the hydraulic support bottom girder and connects blind hole, and be provided with the liquid in-out through hole 19 and 21 that is communicated with in oil cylinder 3 and the post 4 alive, oil sealing 25,26 is housed respectively on the liquid in-out through hole 19 and 21; Base 5 is provided with seal 7 and is connected steel wire 9 with the contact surface of oil cylinder 3, and base 5 is connected steel wire 9 with oil cylinder 3 usefulness and links together.Have a groove on the post 4 bottom cylindricals alive, be provided with clip 16 in the groove, be provided with guide ring 17 in the border groove of clip 16, the both sides up and down of clip 16 are provided with seal 15 and 18; Living is provided with cylinder sleeve 2 between post 4 outsides and the exit, oil cylinder 3 upper end, and cylinder sleeve 2 is provided with the liquid in-out through hole 20 and 22 that is communicated with in the oil cylinder 3, and oil sealing 27,28 is housed respectively on the liquid in-out through hole 20 and 22; Cylinder sleeve 2 is provided with seal 10, dust ring 14 and guide ring 13 with post 4 contact surfaces of living, and cylinder sleeve 2 is provided with seal 6 and is connected steel wire 8 with oil cylinder 3 contact surfaces.Form a bigger variable seal chamber by top cover 1, live post 4, base 5, oil cylinder 3 and clip 16, guide ring, seal; Form a less variable seal chamber by oil cylinder 3, cylinder sleeve 2, post 4 alive and clip 16, guide ring, seal, integral body has constituted the single extension suspended type hydraulic vertical prop structure.
Embodiment two, shown in Figure 3, basic identical with embodiment one structure, the difference internal diameter entrance, post 4 top that is to live is provided with to suspend and cover 23, suspend cover 23 be provided with one or more groups seal 24 between post 4 internal diameters alive cooperate.
Embodiment three, Fig. 4 are shown in Figure 5, and be basic identical with embodiment one structure, and difference is that the upper end of top cover 1 is an otic placode, has the connecting hole that connects the hydraulic support back timber on the otic placode.
Embodiment four, Fig. 4 are shown in Figure 6, and be basic identical with the structure of embodiment three, and the difference internal diameter entrance, post 4 top that is to live is provided with to suspend and cover 23, suspend cover 23 be provided with one or more groups seal 24 between post 4 internal diameters alive cooperate.
Embodiment five, Fig. 7 are shown in Figure 8, and be basic identical with the structure of embodiment three, and difference is that the bottom of base 5 is an otic placode, has the connecting hole that connects the hydraulic support bottom girder on the otic placode.
Embodiment six, Fig. 7 are shown in Figure 9, and be basic identical with the structure of embodiment five, and the difference internal diameter entrance, post 4 top that is to live is provided with to suspend and cover 23, suspend cover 23 be provided with one or more groups seal 24 between post 4 internal diameters alive cooperate.
The course of work: when the column setting prop, highly pressurised liquid enters in post 4 cavitys alive by liquid in-out through hole 19,21, along with the injection of liquid, the liquid of the annular housing that post 4 alive and oil cylinder are 3 flows back to fuel tank by liquid in-out through hole 20,22, thereby reaches the purpose of setting prop.
When post fell in column, highly pressurised liquid injected liquid by liquid in-out through hole 20 or 22 in the annular housing of live 3 of post 4 and oil cylinders, and along with the injection of liquid, the liquid in the post 4 of living are let out oil sump tank by liquid in-out through hole 19 or 21, thereby reach the purpose of falling post.
The every injection of highly pressurised liquid and releasing once, column just supports and falls post once, and hydraulic vertical prop is just finished a working cycles like this.
Claims (9)
1. single extension suspended type hydraulic vertical prop, it is characterized in that: it is that otic placode or hemispheroidal top cover (1), cylinder sleeve (2), oil cylinder (3), the post (4) of living, lower end are that otic placode or hemispheroidal base (5), guide ring and seal constitute by the upper end, wherein the upper end is located on the post alive (4) for otic placode or hemispheroidal top cover (1), it is in otic placode or the hemispheroidal end Cuo (5) that oil cylinder (3) is located at the lower end, post (4) bottom of living is contained in the oil cylinder (3), becomes a bigger variable seal chamber by clip (16) and guide ring (17), seal combination; Cylinder sleeve (2) be located at post alive (4) outside with oil cylinder (3) between, form a less variable seal chamber by clip (16) and guide ring (13,17), seal; The lower end is the liquid in-out through hole (19,21) that otic placode or hemispheroidal base (5) are provided with the bigger variable seal chamber of connection; Cylinder sleeve (2) is provided with the liquid in-out through hole (20,22) that is communicated with less variable seal chamber.
2. single extension suspended type hydraulic vertical prop according to claim 1 is characterized in that: internal diameter entrance, described post alive (4) top is provided with the lid (23) that suspends, and is provided with one or more groups seal (24) between the suspension lid (23) and post (4) internal diameter of living cooperate.
3. single extension suspended type hydraulic vertical prop according to claim 1 is characterized in that: described post alive (4) lower outer diameter is provided with the groove of settling clip (16), and clip (16) both sides up and down is provided with seal (15,18).
4. according to claim 1 or 3 described single extension suspended type hydraulic vertical props, it is characterized in that: described guide ring (17) is located on the excircle of clip (16), and between oil cylinder (3) inner surface for being slidingly matched.
5. single extension suspended type hydraulic vertical prop according to claim 1 is characterized in that: described upper end is that otic placode or hemispheroidal top cover (1) are provided with connecting hole.
6. single extension suspended type hydraulic vertical prop according to claim 1 is characterized in that: described lower end is that otic placode or hemispheroidal base (5) are provided with connecting hole or two halves connect blind hole.
7. single extension suspended type hydraulic vertical prop according to claim 1 is characterized in that: the liquid in-out through hole of described cylinder sleeve (2) (20,22) is provided with oil sealing (27,28).
8. single extension suspended type hydraulic vertical prop according to claim 1 is characterized in that: be equipped with oil sealing (25,26) on the liquid in-out through hole of described base (5) (19,21).
9. single extension suspended type hydraulic vertical prop according to claim 1 is characterized in that: described post alive (4) and oil cylinder (3) are made with metal or glass-reinforced plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200409860U CN201078237Y (en) | 2007-07-27 | 2007-07-27 | Single expansion suspending type hydraulic pressure upright post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200409860U CN201078237Y (en) | 2007-07-27 | 2007-07-27 | Single expansion suspending type hydraulic pressure upright post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201078237Y true CN201078237Y (en) | 2008-06-25 |
Family
ID=39570299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200409860U Expired - Fee Related CN201078237Y (en) | 2007-07-27 | 2007-07-27 | Single expansion suspending type hydraulic pressure upright post |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201078237Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704959A (en) * | 2012-07-09 | 2012-10-03 | 中国矿业大学 | Hinged type suspension hydraulic column |
-
2007
- 2007-07-27 CN CNU2007200409860U patent/CN201078237Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704959A (en) * | 2012-07-09 | 2012-10-03 | 中国矿业大学 | Hinged type suspension hydraulic column |
| CN102704959B (en) * | 2012-07-09 | 2015-04-29 | 中国矿业大学 | Hinged type suspension hydraulic column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jinhu Xiaoqingqing Electromechanical Device Co., Ltd. Assignor: China University of Mining & Technology Contract fulfillment period: 2004.6.10 to 2027.5.23 Contract record no.: 2008320001069 Denomination of utility model: Single extension suspended type hydraulic vertical prop Granted publication date: 20080625 License type: General permission Record date: 20081027 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: COMMON LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2004.6.10 TO 2027.5.23; CHANGE OF CONTRACT Name of requester: JINHU XIAOQINGQING ELECTROMECHANICAL EQUIPMENT CO. Effective date: 20081027 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20100727 |