CN205836925U - Little cylinder diameter power steering stgear automatic relieving valve - Google Patents
Little cylinder diameter power steering stgear automatic relieving valve Download PDFInfo
- Publication number
- CN205836925U CN205836925U CN201620558464.9U CN201620558464U CN205836925U CN 205836925 U CN205836925 U CN 205836925U CN 201620558464 U CN201620558464 U CN 201620558464U CN 205836925 U CN205836925 U CN 205836925U
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- Prior art keywords
- stroke valve
- power steering
- axial line
- cylindrical
- valve rod
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Abstract
A kind of little cylinder diameter power steering stgear automatic relieving valve, relates to automobile power steering.This little cylinder diameter power steering stgear automatic relieving valve includes stroke valve rod, stroke valve seat, stroke valve slide bar, the cylindrical of stroke valve rod is Φ 8H7/u7 interference fit with the endoporus of stroke valve seat, its endoporus is two shoulder holes, making 65 ° of positive and negative deviations of tapering 1 °, the horn mouth of degree of depth 1.2mm in imperial palace bore ends, to make this horn mouth out-of-roundness be 0.006mm, roughness is 1.6；Its endoporus of stroke valve seat is two shoulder holes, its aperture and the cylindrical interference fit of stroke valve rod, makees M12 × 1.25 screw thread at its cylindrical；Stroke valve slide bar is three multidiameters, is the sphere of 3.75mm at the catch cropping radius R of middle big axle cylindrical with smallest end axle, with stroke valve rod horn mouth at cone match.This utility model is applicable to little cylinder diameter, high-quality power steering stgear, compact conformation, good airproof performance, automatic centering.This utility model can be widely popularized and apply to power steering stgear manufacturing enterprise.
Description
Technical field
This utility model relates to automobile power steering technical field, and a kind of little cylinder diameter power steering stgear unloads automatically
Lotus valve.
Background technology
Electric automobile is in high-speed development period at present, and electric automobile is the highest to the pressure requirements of steering pump motor, so
Power steering stgear is installed automatic relieving valve, is that a kind of effective minimizing electric vehicle rotary is to the means of Oil pump electrical machinery fault.But mesh
The automatic deloading defective valve of front power steering stgear, is underproof most common pattern in power steering stgear test；And city at present
Little cylinder diameter power steering stgear unloader product is not still had on field.For described above, the applicant develop a kind of compact conformation,
Good airproof performance, can automatically adjust installation centering, it is adaptable to the automatic relieving valve of cylinder diameter less than 80 little cylinder diameter power steering stgear, full
Foot high-quality power steering stgear demand.
According to retrieval, domestic not yet have the patent application identical with this utility model.
Summary of the invention
For described above, this utility model provides a kind of compact conformation, good airproof performance, can automatically adjust installation centering
Property, it is adaptable to the little cylinder diameter of cylinder diameter less than 80, the little cylinder diameter power steering stgear automatic relieving valve of high-quality power steering stgear demand.
This utility model solves its technical problem and be the technical scheme is that this little cylinder diameter power steering stgear automatic deloading
Valve includes stroke valve rod, stroke valve seat, stroke valve slide bar, and the cylindrical of described stroke valve rod and the endoporus of stroke valve seat are Φ
8H7/u7 interference fit, to make stroke valve rod outside diameter be Φ 8u7, cylindricity is 0.008mm, roughness is 0.8, and its endoporus is
Two shoulder holes, little endoporus axial line relative to axial line A malalignment be Φ 0.15mm, roughness be 1.6, its big endoporus axle center
Line relative to axial line A malalignment be Φ 0.10mm, roughness be 1.6, imperial palace nose end make 65 ° of positive and negative deviations of tapering 1 °,
The horn mouth of degree of depth 1.2mm, to make this horn mouth out-of-roundness be 0.006mm, roughness is 1.6；Described its endoporus of stroke valve seat
It is two shoulder holes, its aperture and the cylindrical interference fit of stroke valve rod so that it is hole diameter is Φ 8H7, cylindricity is
0.008mm, roughness are 0.8, and its macropore axial line is Φ 0.15mm relative to aperture axial line B malalignment, the trip valve
Seat cylindrical axial line relative to aperture axial line B malalignment be Φ 0.15mm, roughness be 1.6, its cylindrical make M12 ×
1.25 screw thread；Described stroke valve slide bar is three multidiameters, its smallest end axle and the small end endoporus matched in clearance of stroke valve rod, slightly
Rugosity is 0.8, and its small end axle is Φ 0.15mm with the malalignment of smallest end axle axial line C, and the major axial diameter in the middle of it is Φ
7.5mm overgauge 0.3mm, is the sphere of 3.75mm at the catch cropping radius R of big axle cylindrical Yu smallest end axle, makes this sphere out-of-roundness
For the malalignment of 0.008mm and axial line C be Φ 0.02mm and with stroke valve rod horn mouth at cone match；By stroke valve
After bar and stroke valve seat interference fit are integrated, reinstall stroke valve slide bar, be installed in the tooth of little cylinder diameter power steering stgear
On bar piston.
The beneficial effects of the utility model are:
1. this utility model provides a kind of little cylinder diameter power steering stgear automatic relieving valve, meets the little cylinder of cylinder diameter less than 80
Footpath, the demand of high-quality power steering stgear, have also been enlarged the scope of application of automatic relieving valve.
2. this utility model uses the stroke valve rod conical surface and the sealing structure of stroke valve slide bar mating spherical surfaces, greatly improves
Unloader stroke valve rod and stroke valve slide bar not sealing effectiveness when straight line, it is to avoid the inefficacy of randomness.
3. this utility model solves the electric powered steering Oil pump electrical machinery of electric motor car because of the matter of power steering stgear automatic relieving valve
Amount problem and the fault that occurs.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is stroke valve rod structural representation of the present utility model.
Fig. 3 is stroke valve holder structure schematic diagram of the present utility model.
Fig. 4 is stroke valve Slide bar structure schematic diagram of the present utility model.
Detailed description of the invention
The utility model is described in further detail to utilize drawings and Examples.
As it can be seen, this utility model little cylinder diameter power steering stgear automatic relieving valve include stroke valve rod 1, stroke valve seat 2,
Stroke valve slide bar 3, the cylindrical of described stroke valve rod 1 and the endoporus of stroke valve seat 2 are Φ 8H7/u7 interference fit, make stroke valve
Bar 1 outside diameter is Φ 8u7, cylindricity is 0.008mm, roughness is 0.8, and its endoporus is two shoulder holes, little endoporus axial line
Relative to axial line A malalignment be Φ 0.15mm, roughness be 1.6, its big endoporus axial line is the most coaxial relative to axial line A
Degree is 1.6 for Φ 0.10mm, roughness, makees 65 ° of positive and negative deviations of tapering 1 °, the horn mouth of degree of depth 1.2mm at imperial palace nose end, makes this
Horn mouth out-of-roundness is 0.006mm, roughness is 1.6；Described its endoporus of stroke valve seat 2 is two shoulder holes, its aperture and row
The cylindrical interference fit of journey valve rod 1 so that it is hole diameter is Φ 8H7, cylindricity is 0.008mm, roughness is 0.8, its macropore
Axial line is Φ 0.15mm relative to aperture axial line B malalignment, and the cylindrical axial line of the trip valve seat 2 is relative to small hole shaft
Heart line B malalignment is Φ 0.15mm, makees M12 × 1.25 screw thread at its cylindrical；Described stroke valve slide bar 3 is three multidiameters,
Its smallest end axle and the small end endoporus matched in clearance of stroke valve rod 1, roughness is 0.8, its small end axle and smallest end axle axial line C
Malalignment be Φ 0.15mm, the major axial diameter in the middle of it is Φ 7.5mm overgauge 0.3mm, in big axle cylindrical and smallest end
The catch cropping radius R of axle is the sphere of 3.75mm, and the malalignment making this sphere out-of-roundness be 0.008mm and axial line C is Φ
0.02mm and with stroke valve rod 1 horn mouth at cone match；After stroke valve rod 1 and stroke valve seat 2 interference fit are integrated,
Reinstall stroke valve slide bar 3, be installed on the rack piston of little cylinder diameter power steering stgear.
Claims (1)
- The least cylinder diameter power steering stgear automatic relieving valve, it is characterised in that: this little cylinder diameter power steering stgear automatic relieving valve includes Stroke valve rod (1), stroke valve seat (2), stroke valve slide bar (3), the cylindrical of described stroke valve rod (1) and stroke valve seat (2) Endoporus is Φ 8H7/u7 interference fit, and to make stroke valve rod (1) outside diameter be Φ 8u7, cylindricity is 0.008mm, roughness is 0.8, its endoporus is two shoulder holes, little endoporus axial line relative to axial line A malalignment be Φ 0.15mm, roughness be 1.6, Its big endoporus axial line relative to axial line A malalignment be Φ 0.10mm, roughness be 1.6, make tapering 65 ° at imperial palace nose end Positive and negative deviation 1 °, the horn mouth of degree of depth 1.2mm, to make this horn mouth out-of-roundness be 0.006mm, roughness is 1.6；Described stroke Valve seat (2) its endoporus is two shoulder holes, its aperture and the cylindrical interference fit of stroke valve rod (1) so that it is hole diameter is Φ 8H7, cylindricity are 0.008mm, roughness is 0.8, and its macropore axial line is Φ relative to aperture axial line B malalignment 0.15mm, the cylindrical axial line of the trip valve seat (2) is Φ 0.15mm relative to aperture axial line B malalignment, at its cylindrical Make M12 × 1.25 screw thread；Described stroke valve slide bar (3) is three multidiameters, in the small end of its smallest end axle and stroke valve rod (1) Interporal lacuna coordinates, and roughness is 0.8, and its small end axle is Φ 0.15mm with the malalignment of smallest end axle axial line C, and middle is big Shaft diameter is Φ 7.5mm overgauge 0.3mm, is the sphere of 3.75mm at the catch cropping radius R of big axle cylindrical Yu small end axle, makes this ball Face out-of-roundness be the malalignment of 0.008mm and axial line C be Φ 0.02mm and with stroke valve rod (1) horn mouth at the conical surface join Close；After stroke valve rod (1) and stroke valve seat (2) interference fit being integrated, reinstall stroke valve slide bar (3), be installed in On the rack piston of little cylinder diameter power steering stgear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558464.9U CN205836925U (en) | 2016-06-08 | 2016-06-08 | Little cylinder diameter power steering stgear automatic relieving valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620558464.9U CN205836925U (en) | 2016-06-08 | 2016-06-08 | Little cylinder diameter power steering stgear automatic relieving valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205836925U true CN205836925U (en) | 2016-12-28 |
Family
ID=58153477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620558464.9U Expired - Fee Related CN205836925U (en) | 2016-06-08 | 2016-06-08 | Little cylinder diameter power steering stgear automatic relieving valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205836925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428216A (en) * | 2021-06-07 | 2021-09-24 | 东科克诺尔商用车制动技术有限公司 | Split type automatic stroke unloading valve |
-
2016
- 2016-06-08 CN CN201620558464.9U patent/CN205836925U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113428216A (en) * | 2021-06-07 | 2021-09-24 | 东科克诺尔商用车制动技术有限公司 | Split type automatic stroke unloading valve |
| CN113428216B (en) * | 2021-06-07 | 2025-03-18 | 东科克诺尔商用车制动技术有限公司 | A split type automatic stroke unloading valve |
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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: 20161228 Termination date: 20210608 |