CN203979000U - Oil cylinder split guide sleeve structure - Google Patents
Oil cylinder split guide sleeve structure Download PDFInfo
- Publication number
- CN203979000U CN203979000U CN201420131350.7U CN201420131350U CN203979000U CN 203979000 U CN203979000 U CN 203979000U CN 201420131350 U CN201420131350 U CN 201420131350U CN 203979000 U CN203979000 U CN 203979000U
- Authority
- CN
- China
- Prior art keywords
- guide sleeve
- gland
- oil cylinder
- sleeve structure
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000004907 gland Anatomy 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of oil cylinder split guide sleeve structure, the outer end of guide sleeve is provided with gland, between gland and outer casing wall, is threaded.The exterior edge face of guide sleeve is provided with dismounting screw.Between gland and interior casing wall, be provided with dust ring and guide ring.Because guide sleeve and gland are splits, can mutually float, therefore can make up the seal leakage causing because of coaxiality deviation and easy accessibility.
Description
Technical field
The utility model relates to a kind of coal mine hydraulic supporting parts, relates in particular to a kind of oil cylinder split guide sleeve structure.
Background technique
Along with continuing to increase of fully mechanized mining face mining rate, the working resistance trend ultimate development of hydraulic support, the column of φ 400mm cylinder diameter can not meet design requirement completely, and the column of φ 420, φ 450, φ 500 cylinder diameters has all been applied in product, and the column of φ 530 cylinder diameters has also started research and development.
As shown in Figure 1, the structure 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 Mei Ji manufactory; But, because cylinder barrel, guide sleeve are all annular, along with the continuous increase of cylinder diameter, after fine finishing due to the effect of internal stress, its deviation from circular from is also increasing, add the frictional force of dynamic and static sealing and guide ring, more difficult when installation, and in use, guide sleeve is subject to the uneven loading action of post alive or middle cylinder, meeting integrated deflection, the large side in gap just there will be the phenomenon of leakage, and this problem is perplexing each Mei Ji manufactory for a long time.
Model utility content
The purpose of this utility model is to provide the oil cylinder split guide sleeve structure that can avoid the seal leakage causing because of coaxiality deviation.
The purpose of this utility model is achieved through the following technical solutions:
Oil cylinder of the present utility model split guide sleeve structure, the outer end of guide sleeve is provided with gland, between described gland and outer casing wall, is threaded.
The technological scheme being provided by above-mentioned the utility model can be found out, the oil cylinder that the utility model embodiment provides split guide sleeve structure, because guide sleeve and gland are splits, can mutually float, therefore can make up the seal leakage causing because of coaxiality deviation.
Brief description of the drawings
Fig. 1 is the structural representation of the overall guide sleeve structure of oil cylinder of the prior art;
The oil cylinder that Fig. 2 provides for the utility model embodiment structural representation of split guide sleeve structure.
In figure:
01. guide ring, 02. guide sleeve motive sealing, 03. guide sleeve static seal, 04. guide sleeve, 05. dust ring;
1. guide ring, 2. guide sleeve static seal, 3. guide sleeve motive sealing, 4. guide sleeve, 5. gland, 6. dust ring.
Embodiment
To be described in further detail the utility model embodiment below.
Oil cylinder of the present utility model split guide sleeve structure, its preferably embodiment be:
The outer end of guide sleeve is provided with gland, between described gland and outer casing wall, is threaded.
The exterior edge face of described guide sleeve is provided with dismounting screw.
Between described gland and interior casing wall, be provided with dust ring.
Between described gland and interior casing wall, be provided with guide ring.
The utility model improves from the cylinder mouth structure of simple in structure, economic and practical angle column, has designed split guide sleeve.This structure one is released, and is just subject to user's accreditation, exports Australian Y204 support and refreshing eastern Y213 support for my company at present.
Specific embodiment, as shown in Figure 2:
Cylinder mouth comprises guide sleeve 4 and gland 5, and guide sleeve plays main leading role, and gland is used for fixing guide sleeve.In the time there is deviation in the each endoporus of cylinder barrel or the each outer circles of guide sleeve, because guide sleeve and gland are splits, can mutually float, therefore can make up the seal leakage causing because of coaxiality deviation;
Because overall guide sleeve structure of the prior art is threaded, the guide ring on it, motive sealing, static seal, dust ring are rotated in its installation, unloading process, because producing heat with cylinder barrel friction, sealability are impacted; And the utility model changes guide sleeve after split into, on guide sleeve, be drilled with dismounting screw, when installation, be directly pressed into, when dismounting, directly extract, without rotation, Sealing is played to certain protective action;
Be convenient to install, the gland of fixed guide cover is threaded, and there is no motive sealing and static seal on it, only has the guide ring of dust ring and scratch proof, and frictional force between cylinder barrel is very little, mounts and dismounts all very convenient.
The above; it is only preferably embodiment of the utility model; but protection domain of the present utility model is not limited to this; any be familiar with those skilled in the art the utility model disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in 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 (3)
1. an oil cylinder split guide sleeve structure, is characterized in that, the outer end of guide sleeve is provided with gland, between described gland and outer casing wall, is threaded;
The exterior edge face of described guide sleeve is provided with dismounting screw.
2. oil cylinder according to claim 1 split guide sleeve structure, is characterized in that, between described gland and interior casing wall, is provided with dust ring.
3. oil cylinder according to claim 2 split guide sleeve structure, is characterized in that, between described gland and interior casing wall, is provided with guide ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131350.7U CN203979000U (en) | 2014-03-21 | 2014-03-21 | Oil cylinder split guide sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131350.7U CN203979000U (en) | 2014-03-21 | 2014-03-21 | Oil cylinder split guide sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203979000U true CN203979000U (en) | 2014-12-03 |
Family
ID=51976452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420131350.7U Expired - Lifetime CN203979000U (en) | 2014-03-21 | 2014-03-21 | Oil cylinder split guide sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203979000U (en) |
Cited By (2)
| 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 |
| CN105156398A (en) * | 2015-08-25 | 2015-12-16 | 中国铝业股份有限公司 | Single-action plunger type large hydraulic cylinder capable of being maintained quickly |
-
2014
- 2014-03-21 CN CN201420131350.7U patent/CN203979000U/en not_active Expired - Lifetime
Cited By (2)
| 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 |
| CN105156398A (en) * | 2015-08-25 | 2015-12-16 | 中国铝业股份有限公司 | Single-action plunger type large hydraulic cylinder capable of being maintained quickly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203831341U (en) | Seal ring assembling lead-in tool | |
| CN203979000U (en) | Oil cylinder split guide sleeve structure | |
| CN104493780A (en) | Water dispenser sealing ring installing device | |
| CN203269458U (en) | Cylinder opening structure of bottom-lifting jack | |
| CN204283464U (en) | One allows pressure anchor cable | |
| CN203973145U (en) | A kind of device for quickly disassembling of mining supporting upright post | |
| CN204371829U (en) | Oil cylinder three sections four formula split guide sleeve structures | |
| CN105375681A (en) | Connection mechanism between servo motor and speed reducer | |
| CN104500496A (en) | Three-section four-piece split guide sleeve structure for oil cylinder | |
| CN202572270U (en) | Oil seal installer | |
| CN204213373U (en) | A kind of no-arbitrary pricing inside screw non-rising stem type gate valve | |
| CN205001515U (en) | Design has bearing seal of labyrinth seals structure | |
| CN204686788U (en) | The provision for disengagement of a kind of torque-converters transfer gear | |
| CN203847039U (en) | Well head protective device | |
| CN204366878U (en) | Water dispenser sealing ring erecting device | |
| CN203936500U (en) | A kind of cutter sweep | |
| CN203935870U (en) | A kind of anti-slip type pressure roller | |
| CN202326502U (en) | Air cylinder capable of preventing piston rod from rotating | |
| CN203374637U (en) | Sliding bearing | |
| CN206548009U (en) | A kind of umbrella for adjusting umbrella surface size | |
| CN205231934U (en) | Coupling mechanism between servo motor and speed reducer | |
| CN203926753U (en) | A kind of pipe gasket | |
| CN204186357U (en) | A kind of Petroleum screen tube being convenient for changing screen cloth | |
| CN204351373U (en) | The bookcase in adjustable inside space | |
| CN205248759U (en) | Anti -explosion cable seal joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |
|
| CX01 | Expiry of patent term |