CN206231441U - Motor vehicle power steering stgear - Google Patents
Motor vehicle power steering stgear Download PDFInfo
- Publication number
- CN206231441U CN206231441U CN201621334996.0U CN201621334996U CN206231441U CN 206231441 U CN206231441 U CN 206231441U CN 201621334996 U CN201621334996 U CN 201621334996U CN 206231441 U CN206231441 U CN 206231441U
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- CN
- China
- Prior art keywords
- ring seal
- annular groove
- motor vehicle
- power steering
- section
- 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.)
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- Sealing Devices (AREA)
Abstract
The utility model belongs to motor vehicle power steering stgear technical field, discloses a kind of motor vehicle power steering stgear.It is mainly characterized in that：Housing including the valve body with deep-hole oil channel, O-ring seal and with lower channel, annular groove is provided with the valve body lower surface combined with the housing, the annular groove is located at the outside of the deep-hole oil channel and lower channel, and the O-ring seal is located in the annular groove.So, when housing compresses O-ring seal, O-ring seal is fixed on annular groove periphery, O-ring seal is not easily moveable, and O-ring seal surrounding is contacted with annular groove, and sealing area is big, even if after O-ring seal deformation, also not resulting in oil leak, the service life of O-ring seal is extended.
Description
Technical field
The utility model belongs to sealing mechanism technical field, more particularly to a kind of motor vehicle power steering stgear.
Background technology
It is with annular shape in shell channel upper end in motor vehicle power steering stgear in motor vehicle power steer field
Step, is provided with O-ring seal on circular step, O-ring seal section with diameter greater than shoulder height, by valve body end face
Compress sealing of the O-ring seal realization to oil circuit.Above-mentioned motor vehicle shell of power steering gear and valve body oil channel sealing mechanism exist with
Lower defect：First, time rear O-ring seal long produces permanent deformation, elasticity reduces, and causes a certain proportion of permeability phenomenon, makes
Into pollution, serious meeting produces oil leak, hydraulic performance decline；Second, after O-ring seal is compressed, only in O-ring seal upper and lower surfaces
Sealing is realized, sealing surface is small, hour is become in O-ring seal elasticity, be easy for causing oil leak, sealing effectiveness is poor；Third, fluid sealant
Circle fixed effect is poor, is easily deformed, and causes oil leak.
Utility model content
Problem to be solved in the utility model is just to provide a kind of long service life, good sealing effect, does not allow easy oil leakage, subtracts
The motor vehicle power steering stgear of of low pollution.
To solve the above problems, the technical scheme that the utility model motor vehicle power steering stgear is used for：Including with depth
The valve body of hole oil duct, O-ring seal and the housing with lower channel, are provided with the valve body lower surface combined with the housing
Annular groove, the annular groove is located at the outside of the deep-hole oil channel and lower channel, and the O-ring seal is located at the annular
In groove.
Its additional technical feature is：
The annular groove rectangular cross-section, the O-ring seal section is circle, and the depth of the annular groove is less than
The diameter in O-ring seal section, the diameter of the cross-sectional width more than O-ring seal section of the annular groove, whole annular groove
Area of section slightly larger than O-ring seal area of section.
Motor vehicle power steering stgear provided by the utility model compared with prior art, with advantages below：First, by
In the housing including the valve body with deep-hole oil channel, O-ring seal and with lower channel, under the valve body combined with the housing
Annular groove is provided with surface, the annular groove is located at the outside of the deep-hole oil channel and lower channel, the O-ring seal
In the annular groove, so, when housing compresses O-ring seal, O-ring seal is fixed on annular groove periphery, sealing
Cushion rubber is not easily moveable, and O-ring seal surrounding is contacted with annular groove, and sealing area is big, even if after O-ring seal deformation,
Oil leak is not resulted in, the service life of O-ring seal is extended；Second, due to the annular groove rectangular cross-section, it is described close
Sealing ring cross-section is circle, the diameter of the depth less than O-ring seal section of the annular groove, the section of the annular groove
Width is more than the diameter in O-ring seal section, and the area of section of whole annular groove is slightly larger than the area of section of O-ring seal, this
Sample, after compaction, O-ring seal upper and lower surface is extruded, and annular groove bottom is tightly attached to above, and housing is tightly attached to below
Surface, and the side of O-ring seal is close on the side wall of annular groove, O-ring seal periphery be nearly all attached to annular groove and
On housing contact surface, sealing area is greatly increased, and sealing effectiveness is further improved, it is to avoid the generation of oil leakage phenomenon, fluid sealant
Circle service life is greatly prolonged.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model motor vehicle power steering stgear；
Fig. 2 is the enlarged drawing of valve body and housing junction.
Specific embodiment
Structure and use with reference to the accompanying drawings and detailed description to the utility model motor vehicle power steering stgear is former
Reason is described in further details.
As shown in Figure 1 and Figure 2, the structural representation of the utility model motor vehicle power steering stgear, the utility model motor vehicle
Power steering stgear includes with the valve body 2 of deep-hole oil channel 1, O-ring seal 3 and the housing 5 with lower channel 4, with the knot of housing 5
Annular groove 6 is provided with the lower surface of the valve body 2 of conjunction, annular groove 6 is located at the outside of deep-hole oil channel 1 and lower channel 4, sealing
Cushion rubber 3 is located in annular groove 6.So, when housing 5 compresses O-ring seal 3, O-ring seal is fixed on the periphery of annular groove 6
3, O-ring seal 3 is not easily moveable, and the surrounding of O-ring seal 3 is contacted with annular groove 6, and sealing area is big, even if fluid sealant
After circle deformation, oil leak is not resulted in yet, extend the service life of O-ring seal.
The rectangular cross-section of annular groove 6, the section of O-ring seal 3 is circle, and the depth of annular groove 6 is less than fluid sealant
Enclose the diameter in 3 sections, the diameter of the cross-sectional width more than the section of O-ring seal 3 of annular groove 6, the section of whole annular groove 6
Slightly larger than the area of section of O-ring seal 3, so, after compaction, the upper and lower surface of O-ring seal 3 is extruded area, above tightly
The bottom of annular groove 6 is attached to, the surface of housing 5 is tightly attached to below, and the side of O-ring seal 3 is close to annular groove 6
Side wall on, O-ring seal periphery is nearly all attached on annular groove and housing contact surface, and sealing area is greatly increased, sealing effect
Fruit is further improved, it is to avoid the generation of oil leakage phenomenon, and O-ring seal service life is greatly prolonged.
Protection domain of the present utility model is not limited solely to above-described embodiment, as long as structure and the utility model motor vehicle
Power steering stgear structure is identical, just falls in the scope of the utility model protection.
Claims (2)
1. motor vehicle power steering stgear, including the valve body with deep-hole oil channel, O-ring seal and the housing with lower channel, it is special
Levy and be：Annular groove is provided with the valve body lower surface combined with the housing, the annular groove is located at the deep hole
The outside of oil duct and lower channel, the O-ring seal is located in the annular groove.
2. motor vehicle power steering stgear according to claim 1, it is characterised in that：The annular groove rectangular cross-section,
The O-ring seal section is circle, the diameter of the depth less than O-ring seal section of the annular groove, the annular groove
Diameter of the cross-sectional width more than O-ring seal section, the section face of the area of section of whole annular groove slightly larger than O-ring seal
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621334996.0U CN206231441U (en) | 2016-12-07 | 2016-12-07 | Motor vehicle power steering stgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621334996.0U CN206231441U (en) | 2016-12-07 | 2016-12-07 | Motor vehicle power steering stgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206231441U true CN206231441U (en) | 2017-06-09 |
Family
ID=58979051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621334996.0U Active CN206231441U (en) | 2016-12-07 | 2016-12-07 | Motor vehicle power steering stgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206231441U (en) |
-
2016
- 2016-12-07 CN CN201621334996.0U patent/CN206231441U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |