CN204371829U - Oil cylinder three sections four formula split guide sleeve structures - Google Patents
Oil cylinder three sections four formula split guide sleeve structures Download PDFInfo
- Publication number
- CN204371829U CN204371829U CN201420801534.XU CN201420801534U CN204371829U CN 204371829 U CN204371829 U CN 204371829U CN 201420801534 U CN201420801534 U CN 201420801534U CN 204371829 U CN204371829 U CN 204371829U
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- guide sleeve
- cylinder
- sections
- gland
- ring
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Abstract
The utility model discloses a kind of oil cylinder three sections four formula split guide sleeve structures, comprise the guide sleeve, cylinder cap, the gland that are arranged in successively from inside to outside between the outer inside wall of cylinder and inner casing outer wall, the inwall of guide sleeve and cylinder cap is respectively equipped with guide ring, be connected by square threaded form between cylinder cap with the outer inside wall of cylinder, the outer inside wall of cylinder at cylinder cap external port place is provided with three-clove style snap ring.The inwall of guide sleeve is provided with guide sleeve motive sealing, and the outer wall of guide sleeve is provided with guide sleeve static seal.The outer wall of gland is provided with dust-proof O shape circle near the position of snap ring.The inwall of gland is provided with dust-proof seal ring near the position of external port.Cylinder mouth place dust ring is provided with between the flange of gland external port and the cylinder mouth of outer shell.Structure is reliable, Perfect in shape and function, be convenient to maintenance.
Description
Technical field
The utility model relates to a kind of coal-mine hydraulic support parts, particularly relates to a kind of oil cylinder three sections four formula split guide sleeve structures.
Background technique
Oil cylinder is the important leverage of hydraulic equipment bulk life time working life.Along with continuing to increase of coal mine fully-mechanized mining working mining rate, the work cycle number of times trend ultimate development of hydraulic support, the continuous increase of working resistance, the manufacture of oil hydraulic cylinder requires high-end, accurate day by day, and is easy to dismounting and maintenance.
As shown in Figure 1, the conventional construction of oil cylinder mouth of the prior art is overall guide sleeve structure, and guide sleeve is connected with cylinder mouth by square threaded form, this relatively simple for structure, is widely used at present by each producer.
At least there is following shortcoming in above-mentioned prior art:
Because cylinder barrel, guide sleeve are all annular, and axial processing length is longer, along with the continuous increase of diameter, due to the effect of internal stress after fine finishing, its deviation from circular from is also in increase, adding cylinder mouth place has the frictional force of dynamic and static sealing and guide ring to concentrate on integrated type guide sleeve, all more difficult during installation and removal; And in use, guide sleeve is subject to living the uneven loading action of post or middle cylinder, can integrated deflection, large side, gap just there will be the phenomenon of leakage; Owing to only leaning on several pieces of screw checks, square threaded form has the effect of transmission axial force and vibrations, in hydraulic support using process, locking inefficacy usually occurs, the phenomenon that guide sleeve entirety loosens; Moreover, because dust-proof static seal can not play one's part to the full, the water of oil cylinder outside can slowly infiltrate in guide sleeve gap, forms corrosion, continues to utilize after affecting oil cylinder dismounting and part maintenance.These problem long-standing problem Zhe Ge manufacturing firm above.
Model utility content
The purpose of this utility model is to provide that a kind of structure is reliable, Perfect in shape and function, be convenient to oil cylinder three sections four the formula split guide sleeve structures that keep in repair.
The purpose of this utility model is achieved through the following technical solutions:
Oil cylinder of the present utility model three sections four formula split guide sleeve structures, comprise the guide sleeve, cylinder cap, the gland that are arranged in successively from inside to outside between the outer inside wall of cylinder and inner casing outer wall, the inwall of described guide sleeve and cylinder cap is respectively equipped with guide ring, be connected by square threaded form between described cylinder cap with the outer inside wall of cylinder, the outer inside wall of cylinder at described cylinder cap external port place is provided with snap ring.
The technological scheme provided as can be seen from above-mentioned the utility model, the oil cylinder that the utility model embodiment provides three sections four formula split guide sleeve structures, owing to comprising the guide sleeve, cylinder cap, the gland that are arranged in successively from inside to outside between the outer inside wall of cylinder and inner casing outer wall, the inwall of guide sleeve and cylinder cap is respectively equipped with guide ring, be connected by square threaded form between cylinder cap with the outer inside wall of cylinder, the outer inside wall of cylinder at cylinder cap external port place is provided with snap ring, and structure is reliable, Perfect in shape and function, be convenient to maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of integrated type guide sleeve structure in prior art;
The structural representation of oil cylinder three sections four the formula split guide sleeve structures that Fig. 2 provides for the utility model embodiment.
In figure:
11. guide sleeves, 12. backing-up screws, 13. dust-proof seal rings, 14. guide sleeve static seals, 15. guide rings, 16. guide sleeve motive sealings;
1. gland, 2. cylinder mouth place dust ring, 3. dust-proof seal ring, 4. dust-proof O shape circle, 5. snap ring, 6. cylinder cap, 7. guide ring, 8. guide sleeve static seal, 9. guide sleeve motive sealing, 10. guide sleeve.
Embodiment
To be described in further detail the utility model embodiment below.
Oil cylinder of the present utility model three sections four formula split guide sleeve structures, its preferably embodiment be:
Comprise the guide sleeve, cylinder cap, the gland that are arranged in successively from inside to outside between the outer inside wall of cylinder and inner casing outer wall, the inwall of described guide sleeve and cylinder cap is respectively equipped with guide ring, be connected by square threaded form between described cylinder cap with the outer inside wall of cylinder, the outer inside wall of cylinder at described cylinder cap external port place is provided with snap ring.
The inwall of described guide sleeve is provided with twice guide ring, is provided with guide sleeve motive sealing between twice guide ring, and the outer wall of described guide sleeve is provided with guide sleeve static seal.
The outer wall of described gland is provided with dust-proof O shape circle near the position of described snap ring.
The inwall of described gland is provided with dust-proof seal ring near the position of external port.
The external port of described gland is provided with flange, and described flange is pressed in the cylinder mouth place of outer shell, and is provided with cylinder mouth place dust ring between the cylinder mouth of described flange and described outer shell.
Described snap ring is three-clove style snap ring.The exterior edge face of described guide sleeve, cylinder cap and gland is respectively equipped with dismounting screw.
Oil cylinder of the present utility model three sections four formula split guide sleeve structures, structure is reliable, Perfect in shape and function, be convenient to maintenance, and on ZY9000/22/45D type high-end hydraulic support product, experiment uses, reaches the using effect of expection.
Specific embodiment:
As shown in Figure 2, cylinder mouth comprises 1 three sections, guide sleeve 10, cylinder cap 6 and gland, add snap ring 5 totally four major parts, guide sleeve plays main leading role, cylinder cap is used for fixing guide sleeve and bears axial force and vibrations, snap ring (three-clove style) prevents from cylinder cap from loosening screwing out, and snap ring to be limited in annular groove and to be provided with dust sealing band by gland.When a certain amount of deviation appears in inner hole of cylinder or each part outer coaxality, because guide sleeve, cylinder cap, gland are splits, mutually can float, therefore significantly can improve the sealing strip place phenomenon of leakage because machining deviation causes.
In prior art, because overall guide sleeve (as Fig. 1) structure is threaded, guide ring on it, motive sealing, static seal, dust ring rotate in its installation, unloading process simultaneously, because producing heat with cylinder barrel friction, in addition sealing material produces circumferential deformation turning in process, certainly will impact sealability; And after the utility model changes guide sleeve into split, guide sleeve is drilled with dismounting screw, is directly pressed into during installation, directly extract during dismounting, without the need to rotating, certain protective action is served to Sealing.
The utility model is convenient to installation and removal, the cylinder cap of fixed guide cover is that square threaded form connects, and it does not have motive sealing and static seal, only has the guide ring of scratch proof, and frictional force between gland place only dust sealing band and cylinder barrel is also very little, it is all time saving and energy saving than conventional construction to mount and dismount.
The three seals circle at the utility model gland place strengthens the ability of the dust-proof and anti-environmental liquids seepage of oil cylinder, farthest avoids the corrosion of cylinder barrel and guide sleeve, cylinder cap, gland, extends the working life of component and oil cylinder entirety.
The utility model cylinder cap is spacing by snap ring, fundamentally prevent guide sleeve part loosening deviate from, the v thread cooperation at gland place has itself certain loosens function, also has cylinder mouth place dust ring also can play locking effect after compaction; Eliminate the screw check that conventional construction is conventional simultaneously, substantially increase anti-loosening property and the reliability of oil cylinder mouth, avoid environmental liquids to infiltrate oil cylinder from cylinder mouth and screw hole and cause backing-up screw and other part corrosions.
The utility model, owing to changing original overall guide sleeve into three sections of four formulas, reduces the complexity and reject rate that add man-hour, also only can change individual part wherein, because this reducing the cost produced and keep in repair when maintenance and renewal part.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the change that can expect easily or replacement, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (7)
1. an oil cylinder three sections four formula split guide sleeve structures, it is characterized in that, comprise the guide sleeve, cylinder cap, the gland that are arranged in successively from inside to outside between the outer inside wall of cylinder and inner casing outer wall, the inwall of described guide sleeve and cylinder cap is respectively equipped with guide ring, be connected by square threaded form between described cylinder cap with the outer inside wall of cylinder, the outer inside wall of cylinder at described cylinder cap external port place is provided with snap ring.
2. oil cylinder according to claim 1 three sections four formula split guide sleeve structures, it is characterized in that, the inwall of described guide sleeve is provided with twice guide ring, is provided with guide sleeve motive sealing between twice guide ring, and the outer wall of described guide sleeve is provided with guide sleeve static seal.
3. oil cylinder according to claim 2 three sections four formula split guide sleeve structures, is characterized in that, the outer wall of described gland is provided with dust-proof O shape circle near the position of described snap ring.
4. oil cylinder according to claim 3 three sections four formula split guide sleeve structures, it is characterized in that, the inwall of described gland is provided with dust-proof seal ring near the position of external port.
5. oil cylinder according to claim 4 three sections four formula split guide sleeve structures, it is characterized in that, the external port of described gland is provided with flange, and described flange is pressed in the cylinder mouth place of outer shell, and is provided with cylinder mouth place dust ring between the cylinder mouth of described flange and described outer shell.
6. three sections four the formula split guide sleeve structures of the oil cylinder according to any one of claim 1 to 5, it is characterized in that, described snap ring is three-clove style snap ring.
7. three sections four the formula split guide sleeve structures of the oil cylinder according to any one of claim 1 to 5, it is characterized in that, the exterior edge face of described guide sleeve, cylinder cap and gland is respectively equipped with dismounting screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801534.XU CN204371829U (en) | 2014-12-16 | 2014-12-16 | Oil cylinder three sections four formula split guide sleeve structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801534.XU CN204371829U (en) | 2014-12-16 | 2014-12-16 | Oil cylinder three sections four formula split guide sleeve structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371829U true CN204371829U (en) | 2015-06-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420801534.XU Expired - Fee Related CN204371829U (en) | 2014-12-16 | 2014-12-16 | Oil cylinder three sections four formula split guide sleeve structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500496A (en) * | 2014-12-16 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Three-section four-piece split guide sleeve structure for oil cylinder |
-
2014
- 2014-12-16 CN CN201420801534.XU patent/CN204371829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500496A (en) * | 2014-12-16 | 2015-04-08 | 中煤北京煤矿机械有限责任公司 | Three-section four-piece split guide sleeve structure for oil cylinder |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161216 |