CN206753899U - A kind of steering pump of low noise low pulse - Google Patents
A kind of steering pump of low noise low pulse Download PDFInfo
- Publication number
- CN206753899U CN206753899U CN201720466051.2U CN201720466051U CN206753899U CN 206753899 U CN206753899 U CN 206753899U CN 201720466051 U CN201720466051 U CN 201720466051U CN 206753899 U CN206753899 U CN 206753899U
- Authority
- CN
- China
- Prior art keywords
- mrow
- msub
- rotor
- interval angles
- mfrac
- 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.)
- Active
Links
Landscapes
- Rotary Pumps (AREA)
Abstract
The utility model discloses a kind of steering pump of low noise low pulse,Including the pump housing provided with discharge chambe,Pump shaft on the pump housing,And the stator in discharge chambe,Rotor,Blade,Pump shaft connects rotor by spline and rotor driven rotates in stator,The rotor is circumferentially arranged with some rotor slots,The blade is arranged in rotor slot and rotated with rotor,The quantity of the rotor slot is 12,Interval angles are provided between adjacent two rotor slot,Clockwise direction of the two decile semicircles of rotor along rotor is followed successively by the first interval angles,Second interval angles,3rd interval angles,4th interval angles,5th interval angles,The angle of second interval angles is less than the first interval angles and the 3rd interval angles and simultaneously greater than the 4th interval angles,4th interval angles,5th interval angles,The angle of 6th interval angles is successively decreased along rotor clockwise direction.The utility model effectively reduces noise and the pulsation of steering pump.
Description
Technical field
It the utility model is related to steering pump.
Background technology
With developing rapidly for Domestic Automotive Industry, people are to the performance of automobile and the comfortableness of driving and the ratio of performance to price
It is required that more and more higher.To meet that people to the sensitive requirement of motor turning, have used electronic-controlled power steering to help in automobile steering system
Power pump.In order to meet requirements at the higher level of the people to performance of automotive steering system, each producer all constantly employ new technology, green wood
Material, new technology, and reduce the noise of steering pump and pulse and the performance of automobile and the comfortableness of driving are had a major impact.
Utility model content
Technical problem to be solved in the utility model is exactly a kind of steering pump of low noise low pulse, can effectively be dropped
The noise of low steering pump and pulsation, ensure that power steering is stable.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：A kind of steering of low noise low pulse
Oil pump, including the pump housing provided with discharge chambe, the pump shaft on the pump housing, and stator, rotor, leaf in discharge chambe
Piece, pump shaft connect rotor and rotor driven by spline and rotated in stator, the rotor circumferentially arranged with some rotor slots,
The blade is arranged in rotor slot and rotated with rotor, and the quantity of the rotor slot is 12, is set between adjacent two rotor slot
There are an interval angles, the clockwise direction of two decile semicircles of rotor along rotor is followed successively by the first interval angles, the second angular interval
Degree, the 3rd interval angles, the 4th interval angles, the 5th interval angles, the angle of second interval angles are less than the first interval
Angle and the 3rd interval angles and simultaneously greater than the 4th interval angles, between the 4th interval angles, the 5th interval angles, the 6th
Successively decrease every the angle of angle along rotor clockwise direction.
Preferably, first interval angles are 36 degree, second interval angles are 29.8 degree, the 3rd interval
Angle is 31.3 degree, and the 4th interval angles are 29.5 degree, and the 5th interval angles are 27.7 degree, the 6th angular interval
Spend for 25.7 degree.
Preferably, the easement curve between the minor axis and major diameter of the stator is
As 0≤φ≤α1When
Work as α1During≤φ≤α
R- stator curves major diameter in formula
Γ-stator curve minor axis
The crank degree of φ-stator curve
α130 ° of the great circle arc angle of-stator curve
α324 ° of the great circle arc angle of-stator curve.
Preferably, the pump shaft is arranged in pump housing axis hole by composite bush.
Preferably, the composite bush is provided with screw type oil-way.
The technical solution adopted in the utility model, the blade mounting groove on rotor is arranged to 12 not repetitional structures, 12
Bar not decile groove rotor by not decile groove eliminate the pump housing resonance caused by noise, its intrinsic frequency is tended to be reasonable,
Intrinsic frequency is deviateed the multiple frequency of its rotating speed fundamental frequency, avoid its forbidden zones of frequencies, so as to effectively reduce steering pump
Noise and pulsation.
Therefore, the utility model can effectively reduce noise and the pulsation of steering pump, ensure that power steering is stable, improve
The service life of boosting pump for car steering, the comfortableness and security for making driving are improved.
Brief description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is cross-sectional view of the present utility model；
Fig. 2 is the structural representation of rotor；
Fig. 3 is the structural representation of stator；
Fig. 4 is the easement curve between the minor axis and major diameter of stator.
Embodiment
As shown in figure 1, the steering pump of low noise low pulse, including the pump housing provided with discharge chambe, on the pump housing
Pump shaft 1, traffic security ontrol valve assembly 11, and stator 16 in discharge chambe, rotor 17, blade 18, preceding oil distribution casing 4,
Oil distribution casing 7 afterwards, sealed between traffic security ontrol valve assembly 11 and pump housing valve opening by O-ring 12, stator 16, it is preceding with oil
Disk 4, rear oil distribution casing 7 are concatenated by alignment pin 5.The spill port of the pump housing is by blocking 6 interference seals, open rearward end and by the envelope of bonnet 13
Close, there are two O-ring seals 8 and 9 to seal between bonnet 13 and pump housing bottom, bonnet 13 is stopped spacing by back-up ring 10.Pump shaft leads to
Cross outside framework oil seal 2 and composite bush 3 is arranged in pump housing axis hole.Holddown spring 14 is provided between oil distribution casing 7 and bonnet 13 afterwards.Pump
Axle connects rotor by spline and rotor driven rotates in stator, and the rotor is described circumferentially arranged with some rotor slots
Blade is arranged in rotor slot and rotated with rotor.
Driven by engine pump shaft 1 rotates, and pump shaft 1 connects rotor driven 17 by spline and rotated, the blade 18 in rotor slot
As rotor rotates, the radial motion simultaneously of blade 18 is realized by specific curves on stator 16, so as to realize suction pressure oil, is being passed through
Flow control valve realizes that flow keeps relative stability with rotation speed change.
Wherein, the composite bush is provided with screw type oil-way.Remove on the orthodox car power steering pump pump housing
Rolling bearing, using the composite bush for having oil-way, it is possible to achieve the requirement of the dynamic lubrication of composite bush, to meet steering wheel
It can require.
The all fluorubber of O-ring seal (F385, shore a hardness 80~85) material, improves the reliable of product
Property.Outside framework oil seal is exposed framework oil seal (material is fluorubber), using double-lip seal form, prevents inside and outside two layers of leakage,
The reliability of shaft end seal is improved, highest heatproof can reach 240 degrees Celsius；
Valve seat assembly is 2 layers of filter structure of band, can filter the impurity in oil product, avoid card valve caused by product impurity,
Very fast phenomenon is worn, improves the life-span of product.
As shown in Fig. 2 the quantity of rotor slot is 12, interval angles are provided between adjacent two rotor slot, two of rotor
Clockwise direction of the decile semicircle along rotor is followed successively by between the first interval angles, the second interval angles, the 3rd interval angles, the 4th
Every angle, the 5th interval angles, the angles of second interval angles is less than the first interval angles and the 3rd interval angles and same
When be more than the 4th interval angles, the 4th interval angles, the 5th interval angles, the angle of the 6th interval angles are along rotor up time
Successively decrease in pin direction.
Preferably, first interval angles are 36 degree, second interval angles are 29.8 degree, the 3rd interval
Angle is 31.3 degree, and the 4th interval angles are 29.5 degree, and the 5th interval angles are 27.7 degree, the 6th angular interval
Spend for 25.7 degree.
As shown above, the blade mounting groove on rotor is arranged to 12 not repetitional structures, steering can be effectively reduced
The noise of pump and pulsation.
Stator major diameter is the maximum radius of stator inner circle, and stator minor axis is the least radius of stator inner circle, in the prior art,
Easement curve between stator major diameter and minor axis has various ways.Most it is initially using accelerating and decerating curve, according to this mistake
Cross curve and easily produce hard impact, that is, velocity variations impact, in order to solve this problem, later changed into curve of equal velocity
Sine and cosine curve, although this easement curve solves the problems, such as hard impact, but soft impact does not solve, for the purposes of solving
The problem of soft impact, Archimedes's easement curve is used again, but fail the technical problem for solving hard impact and soft impact simultaneously.
Therefore, be the technical problem that solves hard impact and soft impact, as shown in Figure 3 and Figure 4, the minor axis and major diameter of stator it
Between easement curve be designed as
As 0≤φ≤α1When
Work as α1During≤φ≤α
R- stator curves major diameter in formula
Γ-stator curve minor axis
The crank degree of φ-stator curve
α130 ° of the great circle arc angle of-stator curve
α324 ° of the great circle arc angle of-stator curve.
By above-mentioned Curve Design, can solve Stator transitional curve and produce hard impact and the technical problem of soft impact, make
The movement velocity of blade is steady, and acceleration change is gentle.Because original structure stator is using accelerating and decerating curve, this kind
Curve inherently exist it is soft rush phenomenon, the especially changeover portion in curve, the overall acceleration of curve passes through matlab software meters
Calculate as 0.0041, it is 0.0011 that new state curve entirety acceleration calculates smaller by matlab softwares.
Above-mentioned curve constrains the speed and acceleration magnitude at curve both ends when boundary condition is established in design, so new shape
State Stator transitional curve is not only smooth continuous in curve own range, and is not also mutated on end points, is a kind of comprehensive
The good curve of energy, can obtain preferable low noise sound effective value.
In addition, stator uses Cr12MoV die steel materials, solve powdered metallurgical material stator curved surface and pull phenomenon, have
Effect improves the wearability and product useful life longevity of stator curved surface.
Claims (5)
1. a kind of steering pump of low noise low pulse, including the pump housing provided with discharge chambe, the pump shaft on the pump housing, and
Stator, rotor, blade in discharge chambe, pump shaft connects rotor by spline and rotor driven rotates in stator, described
Circumferentially arranged with some rotor slots, the blade is arranged in rotor slot and rotated with rotor rotor, it is characterised in that：It is described
The quantity of rotor slot is 12, is provided with interval angles between adjacent two rotor slot, and two decile semicircles of rotor are along the suitable of rotor
Clockwise is followed successively by the first interval angles, the second interval angles, the 3rd interval angles, the 4th interval angles, the 5th angular interval
Degree, the angle of second interval angles are less than the first interval angles and the 3rd interval angles and simultaneously greater than the 4th angular interval
Degree, the 4th interval angles, the 5th interval angles, the angle of the 6th interval angles are successively decreased along rotor clockwise direction.
A kind of 2. steering pump of low noise low pulse according to claim 1, it is characterised in that：First angular interval
Spend for 36 degree, second interval angles are 29.8 degree, and the 3rd interval angles are 31.3 degree, and the 4th interval angles are
29.5 degree, the 5th interval angles are 27.7 degree, and the 6th interval angles are 25.7 degree.
A kind of 3. steering pump of low noise low pulse according to claim 1, it is characterised in that：The minor axis of the stator
Easement curve between major diameter is
As 0≤φ≤α1When
<mrow>
<mi>P</mi>
<mo>=</mo>
<mi>&Gamma;</mi>
<mo>+</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mo>&times;</mo>
<mfrac>
<mrow>
<mn>2</mn>
<mrow>
<mo>(</mo>
<mi>R</mi>
<mo>-</mo>
<mi>r</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mrow>
<mo>(</mo>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mo>+</mo>
<msub>
<mi>&alpha;</mi>
<mn>3</mn>
</msub>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>&times;</mo>
<msup>
<mi>&phi;</mi>
<mn>2</mn>
</msup>
</mrow>
Work as α1During≤φ≤α
<mrow>
<mi>P</mi>
<mo>=</mo>
<mi>&Gamma;</mi>
<mo>+</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mo>&times;</mo>
<mfrac>
<mrow>
<mn>2</mn>
<mrow>
<mo>(</mo>
<mi>R</mi>
<mo>-</mo>
<mi>r</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<msub>
<mi>&alpha;</mi>
<mn>3</mn>
</msub>
<mrow>
<mo>(</mo>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mo>+</mo>
<msub>
<mi>&alpha;</mi>
<mn>3</mn>
</msub>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>&times;</mo>
<msup>
<mi>&phi;</mi>
<mn>2</mn>
</msup>
<mo>+</mo>
<mfrac>
<mrow>
<mn>2</mn>
<mrow>
<mo>(</mo>
<mi>R</mi>
<mo>-</mo>
<mi>r</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mrow>
<mo>(</mo>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mo>+</mo>
<msub>
<mi>&alpha;</mi>
<mn>3</mn>
</msub>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>&times;</mo>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mo>&times;</mo>
<mi>&phi;</mi>
<mo>+</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<mo>&times;</mo>
<mfrac>
<mrow>
<mn>2</mn>
<mrow>
<mo>(</mo>
<mi>R</mi>
<mo>-</mo>
<mi>r</mi>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mrow>
<mo>(</mo>
<msub>
<mi>&alpha;</mi>
<mn>1</mn>
</msub>
<mo>+</mo>
<msub>
<mi>&alpha;</mi>
<mn>3</mn>
</msub>
<mo>)</mo>
</mrow>
</mrow>
</mfrac>
<mo>&times;</mo>
<msubsup>
<mi>&alpha;</mi>
<mn>1</mn>
<mn>2</mn>
</msubsup>
</mrow>
R- stator curves major diameter in formula
- stator curve minor axis
The crank degree of φ-stator curve
α130 ° of the great circle arc angle of-stator curve
α324 ° of the great circle arc angle of stator curve.
A kind of 4. steering pump of low noise low pulse according to claim 1, it is characterised in that：The pump shaft passes through multiple
Bushing is closed to be arranged in pump housing axis hole.
A kind of 5. steering pump of low noise low pulse according to claim 4, it is characterised in that：On the composite bush
Provided with screw type oil-way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466051.2U CN206753899U (en) | 2017-04-28 | 2017-04-28 | A kind of steering pump of low noise low pulse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720466051.2U CN206753899U (en) | 2017-04-28 | 2017-04-28 | A kind of steering pump of low noise low pulse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206753899U true CN206753899U (en) | 2017-12-15 |
Family
ID=60615435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720466051.2U Active CN206753899U (en) | 2017-04-28 | 2017-04-28 | A kind of steering pump of low noise low pulse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206753899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299897A (en) * | 2017-04-28 | 2017-10-27 | 全兴精工集团有限公司 | A kind of steering pump of low noise low pulse |
-
2017
- 2017-04-28 CN CN201720466051.2U patent/CN206753899U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107299897A (en) * | 2017-04-28 | 2017-10-27 | 全兴精工集团有限公司 | A kind of steering pump of low noise low pulse |
| CN107299897B (en) * | 2017-04-28 | 2019-10-01 | 全兴精工集团有限公司 | A kind of steering pump of low noise low pulse |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10550842B2 (en) | Epitrochoidal type compressor | |
| EP2472115B1 (en) | Spherical expansion compressor adapted to variable working conditions | |
| CN101603530A (en) | Scroll gas-liquid multiphase mixing transmission pump | |
| CN208040698U (en) | A kind of screw compressor | |
| CN201057122Y (en) | Strong-sealing high-speed stream cycloid hydraulic motor and high-pressure rotating shaft seal | |
| CN109026710A (en) | A kind of Roots's hydrogen circulating pump radial seal and Roots's hydrogen circulating pump | |
| CN206753899U (en) | A kind of steering pump of low noise low pulse | |
| CN106762609B (en) | A kind of high-tension shielding Gerotor pump | |
| CN108662424A (en) | A kind of rotor-type oil pump that can improve cavitation erosion | |
| CN107299897B (en) | A kind of steering pump of low noise low pulse | |
| CN204402923U (en) | A kind of low noise liquid-ring vacuum pump | |
| CN102434382A (en) | Radial piston rolling ball type end face valve low-speed high-torque hydraulic motor | |
| CN203322697U (en) | Connecting rod type variable-displacement engine oil pump | |
| CN100504072C (en) | Centrifugal pump mouth ring sealing device | |
| CN208719808U (en) | A kind of rotor-type oil pump that can improve cavitation erosion | |
| CN109000141A (en) | A kind of rotor-type oil pump can be reduced abrasion | |
| CN2903483Y (en) | Gaseous, solid, liquid three phase delivering pump | |
| CN201125867Y (en) | Rotary vane type automobile air conditioner compressor | |
| CN204627981U (en) | Be provided with the gear oil pump side plate of damping hole | |
| CN209925200U (en) | Planetary rotary vane pump | |
| CN210218212U (en) | Inclined three-dimensional synchronous fluid machine | |
| CN103671087A (en) | Pumps with revolving piston structure, related products and part of embodiments | |
| CN208901053U (en) | A kind of rotor-type oil pump can be reduced abrasion | |
| CN208718912U (en) | A kind of outer rotor can be reduced abrasion | |
| CN106678081A (en) | Torque flow pump capable of reducing pressure pulsation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |