CN206608401U - A kind of hydraulic support column seal with annular groove attachment structure - Google Patents
A kind of hydraulic support column seal with annular groove attachment structure Download PDFInfo
- Publication number
- CN206608401U CN206608401U CN201720312030.5U CN201720312030U CN206608401U CN 206608401 U CN206608401 U CN 206608401U CN 201720312030 U CN201720312030 U CN 201720312030U CN 206608401 U CN206608401 U CN 206608401U
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- CN
- China
- Prior art keywords
- step groove
- wall
- sleeve
- inwall
- interstage sleeve
- Prior art date
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Abstract
The utility model discloses a kind of hydraulic support column seal with annular groove attachment structure, including guide sleeve and interstage sleeve, the upper port inwall of outer cylinder can be provided with first step groove and the second step groove below first step groove, the internal diameter of first step groove is more than the internal diameter of second step groove, guide sleeve is assemblied in first step groove bottom and second step groove, the inwall and interstage sleeve outer wall on first step groove top offer rectangular thread, interstage sleeve outer wall thread is connected to first step groove top, the outer wall of the inwall of guide sleeve and the inwall of interstage sleeve with inner cylinder tube has gap, interstage sleeve lower end is contacted with being oriented to set upper side top pressure.The seal carried in the utility model on guide sleeve is separated with the rectangular thread structure of interstage sleeve outer wall, is realized that the sealing mating surface of guide sleeve does not rotate in assembling with interstage sleeve, can effectively be prevented guide sleeve sealing surface wear, it is ensured that its sealing property.
Description
Technical field
The utility model belongs to mine hydraulic bracket technical field, more particularly to a kind of hydraulic support column seal with annular groove
Attachment structure.
Background technology
In fully-mechanized mining working, hydraulic support column is to ensure that working face is able to smoothly enter as major support members
Capable key, and the sealing at hydraulic support column cylinder mouthful is the key for ensureing hydraulic support column normal work.
In the design of existing hydraulic support column, the seal with annular groove type of attachment of hydraulic support column mainly has guiding
Cover for overall threaded connection, card key connection and steel wire connection.Guide sleeve reduces card key connection side for overall threaded connection
The number of parts of formula, is conducive to improving production efficiency, but guide sleeve interior sealing rotates with guide sleeve and damages close when there is assembling
The problem of envelope, particularly after column is repeatedly repaired, the sealing surface in guide sleeve is gradually worn out, and gradually loses sealing function,
So as to influence the normal development of fully-mechanized mining working.Guide sleeve is seldom the problem of there is dismounting inconvenience by the way of steel wire connection
Use.
Therefore, the abrasion of guide sleeve inner sealing surface how is avoided, can realize that the convenient disassembly of guide sleeve just turns into again and need badly
The problem of solution.
Utility model content
There is provided a kind of hydraulic support column seal with annular groove in order to solve weak point of the prior art for the utility model
Attachment structure, the structure makes the sealing in guide sleeve be separated with rectangular thread structure, realizes that guide sleeve interior sealing mating surface is assembled
When do not rotated with guide sleeve, can effectively prevent guide sleeve sealing surface wear, it is ensured that its sealing property.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：A kind of hydraulic support column cylinder mouthful
Hermetical connecting structure, described hydraulic support column includes vertically arranged outer cylinder and inner cylinder tube, outer cylinder and inner cylinder tube
It is hollow structure and equal open top structure, inner cylinder tube is coaxial to be arranged in outer cylinder, outside outer cylinder inwall and inner cylinder tube
There is gap, described Hermetical connecting structure includes guide sleeve and interstage sleeve between wall, the upper port inwall of outer cylinder can be provided with the
One step groove and the second step groove below first step groove, the internal diameter of first step groove are more than the interior of second step groove
Footpath, guide sleeve is assemblied in first step groove bottom and second step groove, and the inwall and interstage sleeve outer wall on first step groove top are equal
Offer rectangular thread, interstage sleeve outer wall thread is connected to first step groove top, the inwall of guide sleeve and the inwall of interstage sleeve with
The outer wall of inner cylinder tube has gap, and interstage sleeve lower end is contacted with being oriented to set upper side top pressure；
Guide sleeve inwall is provided with is slidingly sealed the lower guide ring of cooperation and on lower guide ring with inner casing drum outer wall
The inner seal ring of side, guide sleeve outer wall is provided with the static sealing ring being connected with second step groove inner wall sealing；Interstage sleeve inwall is installed
There are the upper guide ring and the dust-proof seal ring above upper guide ring that cooperation is slidingly sealed with inner casing drum outer wall, interstage sleeve outer wall
The exterior seal ring being connected with first step groove inner wall sealing is installed at neighbouring outer cylinder upper port.
Interstage sleeve upper end outer circumferential edge is fixedly connected with the locating ring above outer cylinder, and the external diameter of locating ring is more than the
The internal diameter of one step groove, locating ring with interstage sleeve is integrally manufactured forms, locating ring lower surface contacts and passed through with outer cylinder upper surface
The backing-up screw connection that axial direction is set.
Using above-mentioned technical proposal, the utility model is directed to set and interstage sleeve split is manufactured and is respectively mounted, and guide sleeve is taken
Axial direction with lower guide ring, inner seal ring and static sealing ring along outer cylinder is not rotatably mounted between outer cylinder body and inner cylinder tube
Gap in；Interstage sleeve carries upper guide ring, dust-proof seal ring and exterior seal ring and is threadedly coupled to by rotation in first step groove
Wall, interstage sleeve lower end top pressure is oriented to set upper side, after interstage sleeve is rotated in place, screws on backing-up screw.First step groove and second step groove
Structure it is corresponding with the outer wall construction of guide sleeve, interstage sleeve lower end be oriented to set upper side top pressure contact and first step groove and second
Ledge structure between step groove can limit guide sleeve and fix in the axial direction, it is ensured that sealed reliability.
In summary, the utility model has the advantages that the rectangular thread knot of the seal carried on guide sleeve and interstage sleeve outer wall
Structure is separated, and is realized that the sealing mating surface of guide sleeve does not rotate in assembling with interstage sleeve, can effectively be prevented guide sleeve sealing surface wear,
Ensure its sealing property.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in figure 1, a kind of hydraulic support column seal with annular groove attachment structure of the present utility model, described hydraulic pressure branch
Erecting post includes vertically arranged outer cylinder 1 and inner cylinder tube 2, and outer cylinder 1 and inner cylinder tube 2 are hollow structure and top is spacious
Mouth structure, inner cylinder tube 2 is coaxial to be arranged in outer cylinder 1, has gap 3, institute between the inwall of outer cylinder 1 and the outer wall of inner cylinder tube 2
The Hermetical connecting structure stated includes guide sleeve 4 and interstage sleeve 5, and the upper port inwall of outer cylinder 1 can be provided with first step groove and be located at
Second step groove below first step groove, the internal diameter of first step groove is more than the internal diameter of second step groove, and guide sleeve 4 is assemblied in
In first step groove bottom and second step groove, the inwall and the outer wall of interstage sleeve 5 on first step groove top offer rectangular thread
6, the outer wall thread of interstage sleeve 5 is connected to first step groove top, and the inwall of guide sleeve 4 and the inwall of interstage sleeve 5 are outer with inner cylinder tube 2
Wall has gap, and the lower end of interstage sleeve 5 is contacted with the upper end top pressure of guide sleeve 4.
The inwall of guide sleeve 4, which is provided with, is slidingly sealed the lower guide ring 7 of cooperation with the outer wall of inner cylinder tube 2 and positioned at lower guide ring
The inner seal ring 8 of 7 tops, the outer wall of guide sleeve 4 is provided with the static sealing ring 9 being connected with second step groove inner wall sealing；In interstage sleeve 5
Wall is provided with the upper guide ring 10 that cooperation is slidingly sealed with the outer wall of inner cylinder tube 2 and the dust seal positioned at the upper top of guide ring 10
Circle 11, the outer wall of interstage sleeve 5 is provided with the exterior seal ring 12 being connected with first step groove inner wall sealing at the upper port of outer cylinder 1.
The upper end outer circumferential edge of interstage sleeve 5 is fixedly connected with the locating ring 13 positioned at the top of outer cylinder 1, the external diameter of locating ring 13
More than the internal diameter of first step groove, locating ring 13 with interstage sleeve 5 is integrally manufactured forms, the lower surface of locating ring 13 and the upper end of outer cylinder 1
The backing-up screw 14 that face contacts and set by axial direction is connected.
The utility model is directed to set 4 and the split of interstage sleeve 5 manufacture and is respectively mounted, and guide sleeve 4 carries time guide ring 7, interior
The axial direction of sealing ring 8 and static sealing ring 9 along outer cylinder 1 is not rotatably mounted to the gap 3 between outer cylinder body and inner cylinder tube 2
It is interior；Interstage sleeve 5 carries upper guide ring 10, dust-proof seal ring 11 and exterior seal ring 12 and is threadedly coupled to by rotation in first step groove
Wall, the upper end of 5 lower end top pressure guide sleeve of interstage sleeve 4, after interstage sleeve 5 is rotated in place, screws on backing-up screw 14.First step groove and second
The structure of rank groove is corresponding with the outer wall construction of guide sleeve 4, and the lower end of interstage sleeve 5 is contacted and first step with the upper end top pressure of guide sleeve 4
Ledge structure between groove and second step groove can limit guide sleeve 4 and fix in the axial direction, it is ensured that sealed reliability.
The present embodiment not makees any formal limitation, every foundation to shape of the present utility model, material, structure etc.
Any simple modification, equivalent variations and modification that technical spirit of the present utility model is made to above example, belong to this reality
With the protection domain of new technique scheme.
Claims (2)
1. a kind of hydraulic support column seal with annular groove attachment structure, described hydraulic support column includes vertically arranged outer
Cylinder barrel and inner cylinder tube, outer cylinder and inner cylinder tube are hollow structure and equal open top structure, and the coaxial installation of inner cylinder tube is outside
In cylinder barrel, there is gap between outer cylinder inwall and inner casing drum outer wall, it is characterised in that：Described Hermetical connecting structure includes leading
To set and interstage sleeve, the upper port inwall of outer cylinder can be provided with first step groove and the second step below first step groove
Groove, the internal diameter of first step groove is more than the internal diameter of second step groove, and guide sleeve is assemblied in first step groove bottom and second step
In groove, the inwall and interstage sleeve outer wall on first step groove top offer rectangular thread, and interstage sleeve outer wall thread is connected to First
Rank groove top, the inwall of guide sleeve and the inwall of interstage sleeve have with the outer wall of inner cylinder tube on gap, interstage sleeve lower end and guide sleeve
Hold top pressure contact；
Guide sleeve inwall is provided with is slidingly sealed the lower guide ring of cooperation and above lower guide ring with inner casing drum outer wall
Inner seal ring, guide sleeve outer wall is provided with the static sealing ring being connected with second step groove inner wall sealing；Interstage sleeve inwall is provided with
The upper guide ring and the dust-proof seal ring above upper guide ring of cooperation are slidingly sealed with inner casing drum outer wall, interstage sleeve outer wall is neighbouring
The exterior seal ring being connected with first step groove inner wall sealing is installed at outer cylinder upper port.
2. a kind of hydraulic support column seal with annular groove attachment structure according to claim 1, it is characterised in that：On interstage sleeve
End outer circumferential edges are fixedly connected with the locating ring above outer cylinder, and the external diameter of locating ring is more than the interior of first step groove
Footpath, locating ring with interstage sleeve is integrally manufactured forms, locating ring lower surface contacts with outer cylinder upper surface and set by axial direction
Backing-up screw connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720312030.5U CN206608401U (en) | 2017-03-28 | 2017-03-28 | A kind of hydraulic support column seal with annular groove attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720312030.5U CN206608401U (en) | 2017-03-28 | 2017-03-28 | A kind of hydraulic support column seal with annular groove attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608401U true CN206608401U (en) | 2017-11-03 |
Family
ID=60174369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720312030.5U Expired - Fee Related CN206608401U (en) | 2017-03-28 | 2017-03-28 | A kind of hydraulic support column seal with annular groove attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219988A (en) * | 2019-05-22 | 2019-09-10 | 河南理工大学 | A kind of high working face hydraulic support column cylinder mouth new type sealing device |
-
2017
- 2017-03-28 CN CN201720312030.5U patent/CN206608401U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219988A (en) * | 2019-05-22 | 2019-09-10 | 河南理工大学 | A kind of high working face hydraulic support column cylinder mouth new type sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20190328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |