CN202659624U - Hydraulic oil cylinder guide sleeve - Google Patents
Hydraulic oil cylinder guide sleeve Download PDFInfo
- Publication number
- CN202659624U CN202659624U CN 201220249367 CN201220249367U CN202659624U CN 202659624 U CN202659624 U CN 202659624U CN 201220249367 CN201220249367 CN 201220249367 CN 201220249367 U CN201220249367 U CN 201220249367U CN 202659624 U CN202659624 U CN 202659624U
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- CN
- China
- Prior art keywords
- hydraulic oil
- guide sleeve
- oil cylinder
- ring
- groove
- 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 - Fee Related
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- Actuator (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The utility model discloses a hydraulic oil cylinder guide sleeve comprising a guide sleeve body, wherein the inner wall of the guide sleeve body is provided with a sealing ring groove, a guide ring groove and a dustproof ring groove, and a sealing ring, a guide ring, and a dustproof ring which are matched with a piston rod are respectively arranged in the three grooves. The guide sleeve is characterized in that a step is processed on a side face of the sealing ring groove to form an oil storing groove. Therefore, hydraulic oil in the hydraulic oil cylinder enters the sealing ring through the oil storing groove, tension is formed on the sealing ring, the sealing ring can be well sealed with the guiding sleeve and the piston rod, hydraulic oil is prevented from leaking, and sealing property of the oil cylinder is improved. Meanwhile, as the hydraulic oil can not leak outside, actual pressure of the hydraulic oil cylinder is basically equal to rated pressure and safe use of the hydraulic oil cylinder is ensured. Besides, the oil storing groove is simple in structure and convenient to process.
Description
Technical field
The utility model relates to the component of hydraulic jack, is specially a kind of guide sleeve of hydraulic jack.
Background technique
Guide sleeve for hydraulic oil cylinder is as the vital part of hydraulic jack, and it is installed in the cylinder tube front end, and piston rod is led and seals.It and the quality that is directly determining cylinder seal that cooperates of piston rod.The sealing means of existing guide sleeve for hydraulic oil cylinder and piston rod namely relies on the seal ring in the seal groove to seal as shown in Figure 3.After hydraulic jack uses a period of time, seal ring is owing to exist certain gap between wearing and tearing and the guide sleeve, and the hydraulic oil under this kind sealing means flows away from the surface of contact of seal ring and piston rod, can not form tension force to seal ring, therefore hydraulic oil can be revealed from the gap location between seal ring and the guide sleeve, makes hydraulic jack the hydraulic oil leakage phenomenon occur.Simultaneously, this situation can make the actual pressure of hydraulic jack less than rated pressure, thereby affects the safe handling of hydraulic jack.
Summary of the invention
Problem to be solved in the utility model provides a kind of guide sleeve for hydraulic oil cylinder, and hydraulic oil opens seal ring, with the guide sleeve close contact, thereby has avoided hydraulic jack the hydraulic oil leakage phenomenon to occur.
A kind of guide sleeve for hydraulic oil cylinder of the utility model, comprise the guide sleeve body, the inwall of guide sleeve body is provided with seal groove, guiding annular groove, dustproof ring recess, in three grooves seal ring, guide ring, the dust ring that matches with piston rod is housed respectively, it is characterized in that: the side at seal groove is processed with step surface, forms oil storage tank.
The utility model is by processing a step in the seal groove side, form oil storage tank, hydraulic oil in the hydraulic jack is entered in the seal ring by oil storage tank, seal ring is formed tension force, seal ring and guide sleeve and piston rod all can be sealed well, avoid hydraulic oil to leak, improved the sealability of oil cylinder.Simultaneously, because hydraulic oil can not leak, make the actual pressure of hydraulic jack be substantially equal to rated pressure, guaranteed the safe handling of hydraulic jack.In addition this novel oil storage tank simple in structure, be convenient to processing.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the schematic representation of this Novel hydraulic cylinder guide sleeve.
Fig. 2 is the enlarged diagram at A place among Fig. 1.
Fig. 3 is the schematic representation of existing guide sleeve for hydraulic oil cylinder.
Among the figure: 1-oil storage tank, 2-guide sleeve body, 3-seal groove, 4-guiding annular groove, the dustproof ring recess of 5-.
Embodiment
From Fig. 1, Fig. 2 as can be known, the utility model guide sleeve for hydraulic oil cylinder, comprise guide sleeve body 2, the inwall of guide sleeve body 2 is provided with seal groove 3, guiding annular groove 4, dustproof ring recess 5, in three grooves seal ring, guide ring, the dust ring that matches with piston rod is housed respectively, side at seal groove 3 is processed with step surface, forms oil storage tank 1.
Wherein, oil storage tank 1 processing is on the side of seal groove 3 contiguous oil-feed directions.Like this, when hydraulic oil when direction flows from left to right as shown in fig. 1, hydraulic oil can enter into oil storage tank 1 better, seal ring is formed tension force, itself and inside and outside piston rod and guide sleeve all can be sealed well, thereby avoided hydraulic jack the hydraulic oil leakage phenomenon to occur, improved the sealability of oil cylinder.Simultaneously, because hydraulic oil can not leak, make the actual pressure of hydraulic jack be substantially equal to rated pressure, guaranteed the safe handling of hydraulic jack.In addition this novel oil storage tank 1 simple in structure, be convenient to processing.
Especially when the pressure of hydraulic oil hanged down, the oil storage tank in this novel guide sleeve can also reduce the resistance that hydraulic oil enters Sealing, acts on more remarkable.
The action range of this novel this structure is not limited to the introduction in this specification, and the structure of this novel middle oil storage tank of every utilization and principle play seal action, all within this novel protection domain.
Claims (2)
1. guide sleeve for hydraulic oil cylinder, comprise guide sleeve body (2), the inwall of guide sleeve body (2) is provided with seal groove (3), guiding annular groove (4), dustproof ring recess (5), in three grooves seal ring, guide ring, the dust ring that matches with piston rod is housed respectively, it is characterized in that: the side at seal groove (3) is processed with step surface, forms oil storage tank (1).
2. guide sleeve for hydraulic oil cylinder according to claim 1 is characterized in that: oil storage tank (1) processing is on the side of the contiguous oil-feed direction of seal groove (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249367 CN202659624U (en) | 2012-05-30 | 2012-05-30 | Hydraulic oil cylinder guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249367 CN202659624U (en) | 2012-05-30 | 2012-05-30 | Hydraulic oil cylinder guide sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659624U true CN202659624U (en) | 2013-01-09 |
Family
ID=47454533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249367 Expired - Fee Related CN202659624U (en) | 2012-05-30 | 2012-05-30 | Hydraulic oil cylinder guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659624U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705295A (en) * | 2012-05-30 | 2012-10-03 | 马鞍山市裕华机械制造有限公司 | Guide sleeve of hydraulic oil cylinder |
-
2012
- 2012-05-30 CN CN 201220249367 patent/CN202659624U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705295A (en) * | 2012-05-30 | 2012-10-03 | 马鞍山市裕华机械制造有限公司 | Guide sleeve of hydraulic 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 |
Granted publication date: 20130109 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |