CN209041557U - A kind of oil sealing of hydraulic pump - Google Patents
A kind of oil sealing of hydraulic pump Download PDFInfo
- Publication number
- CN209041557U CN209041557U CN201821763957.1U CN201821763957U CN209041557U CN 209041557 U CN209041557 U CN 209041557U CN 201821763957 U CN201821763957 U CN 201821763957U CN 209041557 U CN209041557 U CN 209041557U
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- China
- Prior art keywords
- lip
- annular matrix
- hydraulic pump
- annular
- support ring
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Abstract
The utility model discloses a kind of oil sealings of hydraulic pump, including annular matrix, annular matrix is internally embedded the metallic framework for being equipped with annular, the section of metallic framework is in the L-type of inside bending, the lip of annular matrix is provided with the support ring abutted with metallic framework, the top of support ring is provided with the lip to annular matrix inner inclination, and lubrication thin slice is pasted on lip.The annular matrix structure of sealing ring substantially increases the non-deformability of lip using its high rigidity feature using high voltage bearing hardness formula nitrile rubber；In addition high-strength nylon support ring is used, to support the lip for bearing high pressure, avoiding being turned to outside causes to leak；Lip has attached the lubrication thin slice of polytetrafluoroethylene (PTFE), improves the sealing ring service life using its wear-resisting property.
Description
Technical field
The utility model relates to hydraulic pump technical field of sealing technology, in particular to a kind of oil sealing of hydraulic pump.
Background technique
Currently, the sealing of lubricating oil in hydraulic pump is often maintained using common lip-type packing in the market, due to part
Hydraulic pump requires the use occasion of high load, and oil pressure is higher in actual condition, and the rubber of lip can be firmly under ultra-high pressure condition
It is fitted on axis, is worn quickly, in addition even cannot withstand high pressure, cause from the overturning of the lip waist location of sealing ring weakness
Seal failure.
Utility model content
The utility model is intended to solve one of above-mentioned technical problem in the related technology at least to a certain extent.For this purpose,
The utility model proposes a kind of oil sealings for the applying working condition of resistance to super-pressure of hydraulic pump, have high durometer rubber structure, from
And improve sealing stability.
To achieve the above object, the technical solution of the utility model is as follows:
A kind of oil sealing of hydraulic pump, including annular matrix, annular matrix are internally embedded the metal bone for being equipped with annular
Frame, the section of metallic framework are in the L-type of inside bending, and the lip of annular matrix is provided with the support ring abutted with metallic framework,
The top of support ring is provided with the lip to annular matrix inner inclination, and lubrication thin slice is pasted on lip.
It is further improved according to the above technical scheme, the manufacture material of annular matrix includes high rigidity butyronitrile rubber
Glue.
It is further improved according to the above technical scheme, the manufacture material of support ring includes nylon.
It is further improved according to the above technical scheme, the manufacture material for lubricating thin slice includes polytetrafluoroethylene (PTFE).
It is further improved according to the above technical scheme, the head tank of annular is provided with above lip.
The beneficial effects of the utility model are: the utility model includes annular matrix, annular matrix is internally embedded installation
There is the metallic framework of annular, the section of metallic framework is in the L-type of inside bending, and the lip of annular matrix is provided with and metallic framework
The support ring of abutting, the top of support ring are provided with the lip to annular matrix inner inclination, lubrication thin slice are pasted on lip.
The annular matrix structure of sealing ring is substantially increased using high voltage bearing hardness formula nitrile rubber using its high rigidity feature
The non-deformability of lip；In addition high-strength nylon support ring is used, to support the lip for bearing high pressure, avoids being turned to outer
Side causes to leak；Lip has attached the lubrication thin slice of polytetrafluoroethylene (PTFE), improves the sealing ring service life using its wear-resisting property.
Detailed description of the invention
It is described further below in conjunction with attached drawing and example.
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Referring to Fig.1, a kind of oil sealing of hydraulic pump, including annular matrix 1, being internally embedded for annular matrix 1 are equipped with ring
The metallic framework 2 of shape, the section of metallic framework 2 are in the L-type of inside bending, and the lip of annular matrix 1 is provided with and metallic framework 2
The support ring 3 of abutting, the top of support ring 3 are provided with the lip to 1 inner inclination of annular matrix, and it is thin that lubrication is pasted on lip
Piece 4.1 structure of annular matrix of sealing ring is mentioned using high voltage bearing hardness formula nitrile rubber using its high rigidity feature significantly
The high non-deformability of lip；In addition high-strength nylon support ring 3 is used, to support the lip for bearing high pressure, avoids turning over
Going to outside causes to leak；Lip has attached the lubrication thin slice 4 of polytetrafluoroethylene (PTFE), improves the sealing ring longevity using its wear-resisting property
Life.Wherein, 1 inner wall of annular matrix is maintained to be made of the sealing radial force of axis two parts in the present embodiment: 1. by cutting into
The lip internal diameter magnitude of interference of type；2. the pressure for acting on lip from hydraulic pump internal oil pressure is utilized, self-tightening type diameter is formed
Xiang Li.Rubber uses the high voltage bearing nitrile rubber of high rigidity, avoids excessive compressive deformation.
Further, the manufacture material of the annular matrix 1 in the present embodiment is set as high hardness butadiene-acrylonitrile rubber.
Further, the manufacture material of the support ring 3 in the present embodiment is set as nylon.
Further, the manufacture material of the lubrication thin slice 4 in the present embodiment is set as polytetrafluoroethylene (PTFE).It is arranged in lip position
Firm polytetrafluoroethylene (PTFE) lubrication thin slice 4 is attached, under ultra-high pressure condition, even if lip is embraced on axis by pressure effect, poly- four
The low-friction coefficient reason of vinyl fluoride itself, will not form biggish friction torque, and friction Temperature Rise is small, improves service life.
Further, the head tank 5 of annular is provided with above the lip in the present embodiment.Pressure inside hydraulic pump is made
When using head tank 5, lip is easier to hold tightly on axis, and the self-tightening type radial force of formation is bigger, better tightness.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (5)
1. a kind of oil sealing of hydraulic pump, it is characterised in that: including annular matrix, being internally embedded for the annular matrix is equipped with
The metallic framework of annular, the section of the metallic framework are in the L-type of inside bending, and the lip of the annular matrix is provided with and gold
Belong to the support ring that skeleton abuts, the top of the support ring is provided with the lip to annular matrix inner inclination, on the lip
It is pasted with lubrication thin slice.
2. a kind of oil sealing of hydraulic pump according to claim 1, it is characterised in that: the manufacture material of the annular matrix
Including high hardness butadiene-acrylonitrile rubber.
3. a kind of oil sealing of hydraulic pump according to claim 1, it is characterised in that: the manufacture material packet of the support ring
Include nylon.
4. a kind of oil sealing of hydraulic pump according to claim 1, it is characterised in that: the manufacture material of the lubrication thin slice
Including polytetrafluoroethylene (PTFE).
5. a kind of oil sealing of hydraulic pump according to claim 1, it is characterised in that: be provided with ring above the lip
The head tank of shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821763957.1U CN209041557U (en) | 2018-10-29 | 2018-10-29 | A kind of oil sealing of hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821763957.1U CN209041557U (en) | 2018-10-29 | 2018-10-29 | A kind of oil sealing of hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209041557U true CN209041557U (en) | 2019-06-28 |
Family
ID=67040072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821763957.1U Active CN209041557U (en) | 2018-10-29 | 2018-10-29 | A kind of oil sealing of hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209041557U (en) |
-
2018
- 2018-10-29 CN CN201821763957.1U patent/CN209041557U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 529000 Building 1, No. 289, Lianhai Road, Jianghai District, Jiangmen City, Guangdong Province (multiple photos of one site) Patentee after: Guangdong Xinhui Technology Co.,Ltd. Address before: 529000 Ground Floor, No. 114, Longxi Road, High tech Development Zone, Jianghai District, Jiangmen City, Guangdong Province Patentee before: JIANGMEN XINHUI SEALING TECHNOLOGY Co.,Ltd. |