CN205936669U - Stand with card key formula jar mouth dustproof mechanism - Google Patents
Stand with card key formula jar mouth dustproof mechanism Download PDFInfo
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- CN205936669U CN205936669U CN201620955736.9U CN201620955736U CN205936669U CN 205936669 U CN205936669 U CN 205936669U CN 201620955736 U CN201620955736 U CN 201620955736U CN 205936669 U CN205936669 U CN 205936669U
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Abstract
The utility model relates to a stand with card key formula jar mouth dustproof mechanism. The dustproof effect of jar mouth of current stand is poor, easy wearing and tearing. For this reason, this stand with card key formula jar mouth dustproof mechanism, including outer shell, well jar and the post of living, three's ring overlaps mutually, its characterized in that: be equipped with one -level sealing ring and second -level sealing ring between well jar and the outer shell jar mouth and between post alive and the well jar mouth, it has the twice annular to open on the outer inside wall of cylinder, sets up first calorie of key and first retaining ring in the twice annular respectively. Still being equipped with the cylinder cap on the port of outer shell and well jar, opening the annular caulking groove that has the cross -section to be L shape on the outer side hole wall of cylinder cap central through hole, annular caulking groove is embedded to have the cross -section to be the dust sealing pad that L appeared. The utility model has the advantages of dustproof effectual, wearing and tearing are few, effectively guarantee the life that the pole is sealed, extensively be applicable to in the mining industry production such as colliery.
Description
Technical field
This utility model is related to a kind of column with card key formula cylinder mouth dust-proof mechanism.
Background technology
The working resistance that hydraulic support is mainly dependence column to the supporting of top board to be realized, and column is that support is realized propping up
Support and the critical piece carrying, column is a kind of thrust hydraulic cylinder, mainly by parts groups such as cylinder body, piston, piston rod, fairleads
Become, typically acted on by high pressure during use, its Performance And Reliability directly affects the Performance And Reliability of hydraulic support,
And then affect safety and the production efficiency of fully-mechanized mining working.
With the development of hydraulic support, all many-sides such as the length of column, cylinder diameter, sealing, pattern propose many new
Requirement, promote the structure of column more rationally and have a great development.And wherein have a class column cylinder mouth to tie for card key formula
Structure, such column processing is simple, is easy to assemble, and also allows for keeping in repair.At present, the card key formula that the fully mechanized mining supporter in each colliery adopts is stood
Post is more, the no any preventer of most column cylinder mouth, leads to following several situation to happen occasionally：One cylinder mouth corrosion is serious,
When gug repairs column, the interstage sleeve of cylinder mouth, card key and elastic spring can not be removed, and cause part column to be removed using destructive, lead
Maintenance cost is caused to increase；Two during lifting support, the debris such as cinder of cylinder mouth remaining are to bar footpath chromium plating regions wear for it
Seriously, so lead to rod seal physical life shorten.
Comprehensive case above, in order to improve the service life of product, increases dust guard in the cylinder mouth of such column, can have
The service life of the prolongation product of effect, is easy to keep in repair in mining face under mine and changes, structure is simple, low cost simultaneously.
Utility model content
The technical problems to be solved in the utility model is the drawbacks described above how overcoming prior art, provides one kind to have card
The column of keyed cylinder mouth dust-proof mechanism.
For solving above-mentioned technical problem, originally there is the column of card key formula cylinder mouth dust-proof mechanism, including outer shell, middle cylinder and work
Post, three's ring ring be nested it is characterised in that：It is provided with primary seal ring and second-level sealing ring, outer shell between middle cylinder and outer shell cylinder mouth
Twice annular groove is had on inwall, in twice annular groove, is respectively provided with the first card key and the first back-up ring,
The described outer inside wall of cylinder is provided with shoulder, and primary seal ring front end is provided with corresponding annular chuck, and has annular groove, should
It is provided with the outer static seal of one-level in annular groove；Primary seal ring front end annular chuck is stuck on shoulder, and primary seal ring rear end is stuck in
In one card key, primary seal ring medial surface has three annular grooves, is provided with flower bud shape sealing ring in middle annular groove, divides in the annular groove of both sides
It is not embedded with guide ring；
Second-level sealing ring front end is provided with ladder chuck, and this ladder chuck is made up of one-level chuck and two grades of chuck, and two grades close
The one-level chuck of seal ring is stuck in the first card key, forms an annular groove, be provided with this annular groove between two grades of chuck and the first card key
Two grades of outer static seals；Second-level sealing ring rear end is stuck on the first back-up ring, and second-level sealing ring medial surface has an annular groove, this annular groove
Inside it is embedded with dust seal respectively；
Cylinder cap is additionally provided with outer cylinder port, cylinder cap has central through hole and multiple positioning through hole, and positioning through hole is around center
Through hole is uniformly distributed, and outer shell cylinder mouth end face has with positioning through hole one by one relative to blind hole, the hole wall of this blind hole has interior spiral shell
Stricture of vagina, and it is furnished with screw, this screw through positioning through hole, cylinder cap is fixed on the port of outer shell, the apertura lateralis of cylinder cap central through hole
The L-shaped annular caulking groove in section is had on wall, annular caulking groove is embedded with the L-shaped dust seal in section,
It is provided with primary seal ring and second-level sealing ring between live post and middle cylinder cylinder mouth, the middle inside wall of cylinder has twice annular groove,
It is respectively provided with the second card key and the second back-up ring in twice annular groove,
The described middle inside wall of cylinder is provided with shoulder, and primary seal ring front end is provided with corresponding annular chuck, and has annular groove, should
It is provided with the outer static seal of one-level in annular groove；Primary seal ring front end annular chuck is stuck on shoulder, and primary seal ring rear end is stuck in
In two card keys, primary seal ring medial surface has three annular grooves, is provided with flower bud shape sealing ring in middle annular groove, divides in the annular groove of both sides
It is not embedded with guide ring；
Second-level sealing ring front end is provided with corresponding annular chuck, and has annular groove, is provided with two grades of outer static seals in this annular groove；
Second-level sealing ring front end annular chuck is stuck in the second card key, and second-level sealing ring rear end is stuck on the second back-up ring, second-level sealing ring
Medial surface has an annular groove, is embedded with dust seal in this annular groove respectively；
Cylinder cap is additionally provided with middle cylinder port, cylinder cap has central through hole and multiple positioning through hole, and positioning through hole is around center
Through hole is uniformly distributed, and middle cylinder cylinder mouth end face has with positioning through hole one by one relative to blind hole, the hole wall of this blind hole has interior spiral shell
Stricture of vagina, and it is furnished with screw, this screw through positioning through hole, cylinder cap is fixed on the port of middle cylinder, the apertura lateralis of cylinder cap central through hole
The L-shaped annular caulking groove in section is had on wall, annular caulking groove is embedded with the L-shaped dust seal in section.
It is so designed that, rational in infrastructure between each several part, sealing is compact, sets up cylinder cap, bolt connection between cylinder cap and cylinder barrel,
Cylinder cap internal diameter be respectively provided with middle cylinder external diameter, live post outer diameter contact face together with L-shaped dust seal, can be effectively ensured outer shell and
Not remaining cinder and sewage between middle cylinder, between middle cylinder and live post, protect to cylinder mouth, reduce the debris pair such as corrosion and cinder
The friction in bar footpath chromium plating region scratches, and effectively extends service life, reduces frequency of maintenance, and good sealing effect.
As optimization, the dust seal exposed parts on cylinder cap are in tapered sleeve shape.Be so designed that, can effectively prevent dust fall,
The impurity such as cinder enter inside cylinder mouth, using more safe and reliable.
This utility model has the column of card key formula cylinder mouth dust-proof mechanism, and the cleannes of cylinder mouth not easy rusting can be effectively ensured
Erosion；During lifting support, reduce the abrasions to external diameter of rod body chromium plating area for the debris such as cinder, the making of rod seal is effectively ensured
With the life-span, it is widely used in the Mining Market such as colliery.
Brief description
Below in conjunction with the accompanying drawings the column originally with card key formula cylinder mouth dust-proof mechanism is described further：
Fig. 1 is that cylinder oral area branch office portion's cross-section structure of the column embodiment one originally with card key formula cylinder mouth dust-proof mechanism shows
It is intended to；
In figure：1 is outer shell, 2 is middle cylinder, 3 is live post, 4 is primary seal ring, 5 is second-level sealing ring, 6 is the first card key,
7 is the first back-up ring, 8 is shoulder, 9 is annular chuck, 10 is the outer static seal of one-level, 11 is guide ring, 12 is one-level chuck, 13 are
Two grades of chuck, 14 be cylinder cap, 15 be screw, 16 be dust seal, 17 be two grades of outer static seals, 18 be flower bud shape sealing ring, 19
For the second card key, 20 be the second back-up ring.
Specific embodiment
Embodiment one：As shown in figure 1, the column originally with card key formula cylinder mouth dust-proof mechanism includes outer shell 1, middle cylinder 2 and
Live post 3, three's ring ring be nested it is characterised in that：It is provided with primary seal ring 4 and second-level sealing ring between middle cylinder 2 and outer shell 1 cylinder mouth
5, outer shell 1 inwall has twice annular groove, in twice annular groove, is respectively provided with the first card key 6 and the first back-up ring 7,
Described outer shell 1 inwall is provided with shoulder 8, and primary seal ring 4 front end is provided with corresponding annular chuck 9, and has ring
Groove, is provided with the outer static seal 10 of one-level in this annular groove；Primary seal ring 4 front end annular chuck 9 is stuck on shoulder 8, primary seal ring 4
Rear end is stuck in the first card key 6, and primary seal ring 4 medial surface has three annular grooves, is provided with flower bud shape sealing ring in middle annular groove
18, it is embedded with guide ring 11 in the annular groove of both sides respectively；
Second-level sealing ring 5 front end is provided with ladder chuck, and this ladder chuck is made up of one-level chuck 12 and two grades of chuck 13, and two
The one-level chuck 12 of level sealing ring 5 is stuck in the first card key 6, forms an annular groove between two grades of chuck 13 and the first card key 6, should
It is provided with two grades of outer static seals 17 in annular groove；Second-level sealing ring 5 rear end is stuck on the firstth back-up ring 7, and second-level sealing ring 5 medial surface is opened
There is an annular groove, in this annular groove, be embedded with dust seal 16 respectively；
Cylinder cap 14 is additionally provided with outer shell 1 port, cylinder cap 14 has central through hole and multiple positioning through hole, positioning through hole around
Central through hole is uniformly distributed, and outer shell 1 cylinder mouth end face has with positioning through hole one by one relative to blind hole, the hole wall of this blind hole has
Female thread, and it is furnished with screw 15, this screw 15 cylinder cap 14 is fixed on the port of outer shell 1, in cylinder cap 14 through positioning through hole
The L-shaped annular caulking groove in section is had on the outside hole wall of heart through hole, annular caulking groove is embedded with the L-shaped dust seal in section
16,
It is provided with primary seal ring 4 and second-level sealing ring 5 between live post 3 and middle cylinder 2 cylinder mouth, middle cylinder 2 inwall has twice
Annular groove, is respectively provided with the second card key 19 and the second back-up ring 20 in twice annular groove,
Described middle cylinder 2 inwall is provided with shoulder 8, and primary seal ring 4 front end is provided with corresponding annular chuck 9, and has ring
Groove, is provided with the outer static seal 10 of one-level in this annular groove；Primary seal ring 4 front end annular chuck 9 is stuck on shoulder 8, primary seal ring 4
Rear end is stuck in the second card key 19, and primary seal ring 4 medial surface has three annular grooves, is provided with flower bud shape sealing ring in middle annular groove
18, it is embedded with guide ring 11 in the annular groove of both sides respectively；
Second-level sealing ring 5 front end is provided with corresponding annular chuck 9, and has annular groove, is provided with two outer static seals in this annular groove
17；Second-level sealing ring 5 front end annular chuck 9 is stuck in the second card key 19, and second-level sealing ring 5 rear end is stuck on the second back-up ring 20,
Second-level sealing ring 5 medial surface has an annular groove, is embedded with dust seal 16 in this annular groove respectively；
Cylinder cap 14 is additionally provided with middle cylinder 2 port, cylinder cap 14 has central through hole and multiple positioning through hole, positioning through hole around
Central through hole is uniformly distributed, and middle cylinder 2 cylinder mouth end face has with positioning through hole one by one relative to blind hole, the hole wall of this blind hole has
Female thread, and it is furnished with screw 15, this screw 15 cylinder cap 14 is fixed on the port of middle cylinder 2, in cylinder cap 14 through positioning through hole
The L-shaped annular caulking groove in section is had on the outside hole wall of heart through hole, annular caulking groove is embedded with the L-shaped dust seal in section
16.
Dust seal 16 exposed parts on cylinder cap 14 are in tapered sleeve shape.
Claims (2)
1. a kind of column with card key formula cylinder mouth dust-proof mechanism, including outer shell, middle cylinder and live post, three's ring ring is nested, and it is special
Levy and be：It is provided with primary seal ring and second-level sealing ring between middle cylinder and outer shell cylinder mouth, the outer inside wall of cylinder has twice annular groove, two
It is respectively provided with the first card key and the first back-up ring in road annular groove,
The described outer inside wall of cylinder is provided with shoulder, and primary seal ring front end is provided with corresponding annular chuck, and has annular groove, this annular groove
Inside it is provided with the outer static seal of one-level；Primary seal ring front end annular chuck is stuck on shoulder, and primary seal ring rear end is stuck in the first card
On key, primary seal ring medial surface has three annular grooves, is provided with flower bud shape sealing ring in middle annular groove, embedding respectively in the annular groove of both sides
There is guide ring；
Second-level sealing ring front end is provided with ladder chuck, and this ladder chuck is made up of one-level chuck and two grades of chuck, second-level sealing ring
One-level chuck be stuck in the first card key, between two grades of chuck and the first card key formed an annular groove, be provided with two grades in this annular groove
Outer static seal；Second-level sealing ring rear end is stuck on the first back-up ring, and second-level sealing ring medial surface has an annular groove, and this annular groove embeds
There is dust seal；
Cylinder cap is additionally provided with outer cylinder port, cylinder cap has central through hole and multiple positioning through hole, and positioning through hole is around central through hole
It is uniformly distributed, outer shell cylinder mouth end face has with positioning through hole one by one relative to blind hole, the hole wall of this blind hole has female thread, and
It is furnished with screw, this screw through positioning through hole, cylinder cap is fixed on the port of outer shell, on the outside hole wall of cylinder cap central through hole
Have the L-shaped annular caulking groove in section, annular caulking groove is embedded with the L-shaped dust seal in section,
It is provided with primary seal ring and second-level sealing ring between live post and middle cylinder cylinder mouth, the middle inside wall of cylinder has twice annular groove, twice
It is respectively provided with the second card key and the second back-up ring in annular groove,
The described middle inside wall of cylinder is provided with shoulder, and primary seal ring front end is provided with corresponding annular chuck, and has annular groove, this annular groove
Inside it is provided with the outer static seal of one-level；Primary seal ring front end annular chuck is stuck on shoulder, and primary seal ring rear end is stuck in the second card
On key, primary seal ring medial surface has three annular grooves, is provided with flower bud shape sealing ring in middle annular groove, embedding respectively in the annular groove of both sides
There is guide ring；
Second-level sealing ring front end is provided with corresponding annular chuck, and has annular groove, is provided with two grades of outer static seals in this annular groove；Two grades
Sealing ring front end annular chuck is stuck in the second card key, and second-level sealing ring rear end is stuck on the second back-up ring, inside second-level sealing ring
Face has an annular groove, and this annular groove is embedded with dust seal；
Cylinder cap is additionally provided with middle cylinder port, cylinder cap has central through hole and multiple positioning through hole, and positioning through hole is around central through hole
It is uniformly distributed, middle cylinder cylinder mouth end face has with positioning through hole one by one relative to blind hole, the hole wall of this blind hole has female thread, and
It is furnished with screw, this screw through positioning through hole, cylinder cap is fixed on the port of middle cylinder, on the outside hole wall of cylinder cap central through hole
Have the L-shaped annular caulking groove in section, annular caulking groove is embedded with the L-shaped dust seal in section.
2. there is the column of card key formula cylinder mouth dust-proof mechanism as claimed in claim 1 it is characterised in that：Dust-proof close on cylinder cap
Packing exposed parts are in tapered sleeve shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955736.9U CN205936669U (en) | 2016-08-26 | 2016-08-26 | Stand with card key formula jar mouth dustproof mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620955736.9U CN205936669U (en) | 2016-08-26 | 2016-08-26 | Stand with card key formula jar mouth dustproof mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936669U true CN205936669U (en) | 2017-02-08 |
Family
ID=57953796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620955736.9U Active CN205936669U (en) | 2016-08-26 | 2016-08-26 | Stand with card key formula jar mouth dustproof mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936669U (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 |
-
2016
- 2016-08-26 CN CN201620955736.9U patent/CN205936669U/en active Active
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 |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Gang Inventor after: Liu Anfeng Inventor after: Li Quanhui Inventor after: Zhang Yundong Inventor after: Chang Wentao Inventor after: Yang Zhaowei Inventor before: Zhou Gang Inventor before: Liu Anfeng Inventor before: Li Quanyun Inventor before: Zhang Yundong Inventor before: Chang Wentao Inventor before: Yang Zhaowei |