CN201696062U - Novel brace for suspended top beam hydraulic support - Google Patents
Novel brace for suspended top beam hydraulic support Download PDFInfo
- Publication number
- CN201696062U CN201696062U CN2010202385222U CN201020238522U CN201696062U CN 201696062 U CN201696062 U CN 201696062U CN 2010202385222 U CN2010202385222 U CN 2010202385222U CN 201020238522 U CN201020238522 U CN 201020238522U CN 201696062 U CN201696062 U CN 201696062U
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- plunger
- ring
- post
- cylinder body
- piston sleeve
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Abstract
The utility model discloses a novel brace for a suspended top beam hydraulic support, which comprises a cylinder body and a brace formed by a plunger piston sleeve and a plunger integrally welded and mounted inside the cylinder body; part of the outer diameter of the plunger inside the cylinder body is a reducing pipe section; the plunger piston sleeve is installed on the reducing pipe section; the outer diameter at the tail end of the plunger piston sleeve is provided with a section of reducing end; a seal ring is installed at the reducing end of the plunger piston sleeve; a baffle ring is installed on one side of the plunger in the position where a seal ring is arranged; and a radial concave ring groove and a bearing snap ring mounted in the concave ring groove are formed on the plunger at the tail end of the baffle ring. As the plunger piston sleeve is installed on the outer diameter of the plunger, the top of the plunger serves as the hydraulic supporting point is changed, and the support strength of the plunger is improved; and meanwhile, the seal ring is conveniently installed at the reducing end of the plunger piston sleeve, so that the brace has the advantages of convenient and fast installation and disassembly, labor conservation and convenient maintenance.
Description
Technical field
The utility model relates to the mine and supports facility, relates to a kind of new construction hydraulic prop for moving suspended top beam pillar of coal mine roadway specifically, has effectively improved the supporting intensity of hydraulic prop for moving suspended top beam pillar.
Background technology
At present, be used for colliery underworkings hydraulic prop for moving suspended top beam pillar, comprise that is decided the column cap that cylinder body and an end fixedly install, a movable tubbing is installed in cylinder body, the internal diameter of one end is pegged graft the plugging type plunger is set, by integrally welded, the other end is as support end, with be positioned at the abutting end of deciding cylinder body and movable tubbing seal be installed, be positioned at the oil pipe that adjustable pipe pillar middle part has an oil transportation and guide effect, what make that its oil pipe one end passes plunger and respective side decides the conducting of cylinder body cavity, and the oil pipe other end is communicated with the oil pipe of a fuel feeding valve of movable tubbing; The cavity that is positioned at the movable tubbing of piston opposite side is communicated with another oil pipe on the fuel feeding valve.During application,, act on plunger and movable tubbing moves back timber by oil pipe oiling to oil transportation and guide effect.In actual applications, install or change when producing, when keeping in repair, be installed in the mountain RunddichtringO on the plunger, the mountain RunddichtringO must be widened distortion,, otherwise can't install by the boss shoulder of plunger because of leaking.Like this, on the one hand,, simultaneously, also, reduced sealing effectiveness because of the mountain RunddichtringO widens distortion not only with the difficulty of installing; On the other hand, owing to be the plugging type plunger, it is little to make it the hydraulic oil receiving area, the low and poor stability of supporting intensity.So the hydraulic prop for moving suspended top beam pillar is the problem that presses for solution at present.
Summary of the invention
In view of above-mentioned present situation, the utility model provides a kind of new construction hydraulic prop for moving suspended top beam pillar, makes it have installation, convenient disassembly, has changed the hydraulic pressure strong point and has improved the supporting intensity of pillar.
Technical solution of the present utility model is: a kind of new construction hydraulic prop for moving suspended top beam pillar, comprise and decide cylinder body and interior installation thereof by the plunger bushing and the integrally welded pillar of forming of post of living, be positioned at described cylinder interior post alive external diameter some be the reducing pipeline section, erection column plug sleeve on its reducing pipeline section, the tail end external diameter of plunger bushing has one section reducing end, this plunger bushing reducing end is installed sealing ring, install at sealing ring on the post alive of a side baffle ring is installed, be positioned at the bearing snap ring that has concave ring groove radially on the post alive of baffle ring end and be installed in concave ring groove.Therefore, be installed in by plunger bushing on the external diameter of post alive, changed the strong point of column top alive, improved the supporting intensity of post alive as hydraulic pressure.Simultaneously, the reducing end of plunger bushing is installed sealing ring easily again, and it is quick, laborsaving, easy to maintenance to have an easy installation and removal.
The model that the sealing ring of indication is selected for use in above-mentioned is SH125*7.5.
According to These characteristics, spacing on the related baffle ring also is threaded, or has the arc concave ring groove and be installed in opening steel wire ring in the arc concave ring groove on post alive, the baffle ring on live post, baffle ring.
In a word, the new construction hydraulic prop for moving suspended top beam pillar that the utility model provides, by installation, the welding position that has changed plunger, carry at the top that makes the hydraulic pressure stress point be transferred to post inner chamber alive, helps improving the supporting intensity of post alive; In addition, change the mounting means of plunger and sealing ring, made things convenient for installing/dismounting, eliminated the distortion of sealing ring, the condition of leakage, improved the sealing effectiveness and the application life of sealing ring.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
The utility model will be further described below in conjunction with accompanying drawing embodiment.
See a kind of new construction hydraulic prop for moving suspended top beam pillar shown in Figure 1, comprise cylinder body 1, in cylinder body 1, install by the plunger bushing 5 and the post 6 integrally welded pillars of forming of living.This novel in, be positioned at described cylinder body 1 inside post alives 6 external diameter some be the reducing pipeline section, erection column plug sleeve 5 on its reducing pipeline section, by plunger bushing 5 two ends with work post 6 integrally welded.This novel plunger bushing 5 is arranged on the external diameter of post 6 alive, make hydraulic chamber between end to the top of post 6 alive, the piston and post 6 tops of living are stress surface, increased the stress surface of the hydraulic oil on top in plunger bushing 5, the post 6 alive, promptly changed the hydraulic pressure strong point, make on the stressed strong point and move, guaranteed support strength and stability.This is to implement this novel key.In this is novel, consider sealing ring 4 quick and convenient being installed on the plunger bushing 5, adopt the tail end external diameter of plunger bushing 5 to have one section reducing end equally, the internal diameter of these plunger bushing 5 reducing ends and sealing ring 4 is more approaching.So sealing ring 4 is easily installed on the plunger bushing 5, makes things convenient for installing/dismounting.Guarantee that sealing ring 4 has good spacing the cooperation with plunger bushing 5, and on the post alive 6 of sealing ring 4 installations one side, baffle ring 3 is installed.In the present embodiment, be positioned at the concave ring groove that has on the post alive 6 of baffle ring 3 ends radially, the bearing snap ring 2 that is used for baffle ring 3 location is installed in concave ring groove, prevented that the string of baffle ring 3 is moving or come off.During work, import hydraulic oil to post 6 inner chambers of living, post 6 alive is risen by the oil pipe of fuel feeding valve; To by cylinder body 1 and the cavity input hydraulic oil of living and forming between the post 6, make post 6 contractions alive by the oil pipe of the fuel feeding valve on the cylinder body 1.
According to above-mentioned application characteristic, the spacing of mentioned baffle ring 3 is to realize by the mode that bearing snap ring 2 is set in the concave ring groove that has on the post 6 of living.In addition, can also adopt engage thread to connect.As the internal thread that has by baffle ring 3, with being threaded that the post 6 of living has.
In like manner, bearing snap ring 2 can also be replaced to opening steel wire ring, promptly on live post 6, baffle ring 3, have the arc concave ring groove.During installation, make opening steel wire ring be positioned at arc concave ring groove on post 6 alive, the baffle ring 3.
Claims (2)
1. new construction hydraulic prop for moving suspended top beam pillar, comprise that cylinder body and interior installation thereof are by the plunger and the integrally welded pillar of forming of post of living, it is characterized in that, be positioned at the inner post alive (6) of described cylinder body (1) external diameter some be the reducing pipeline section, erection column plug sleeve (5) on its reducing pipeline section, the tail end external diameter of plunger bushing (5) has one section reducing end, sealing ring (4) is installed on it, the post alive (6) of one side is installed at sealing ring (4) is gone up installation baffle ring (3), be positioned at the bearing snap ring (2) that has concave ring groove radially on the terminal post alive (6) of baffle ring (3) and be installed in concave ring groove.
2. a kind of new construction hydraulic prop for moving suspended top beam pillar according to claim 1, it is characterized in that, spacing on the described baffle ring (3) is to be threaded, or on live post (6), baffle ring (3), have the arc concave ring groove and be installed in post alive (6), baffle ring (the opening steel wire ring in the arc concave ring groove on 30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202385222U CN201696062U (en) | 2010-06-22 | 2010-06-22 | Novel brace for suspended top beam hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202385222U CN201696062U (en) | 2010-06-22 | 2010-06-22 | Novel brace for suspended top beam hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696062U true CN201696062U (en) | 2011-01-05 |
Family
ID=43397302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202385222U Expired - Fee Related CN201696062U (en) | 2010-06-22 | 2010-06-22 | Novel brace for suspended top beam hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696062U (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 |
-
2010
- 2010-06-22 CN CN2010202385222U patent/CN201696062U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20110622 |