CN207333179U - A kind of power assistance pump for steering - Google Patents
A kind of power assistance pump for steering Download PDFInfo
- Publication number
- CN207333179U CN207333179U CN201720359044.2U CN201720359044U CN207333179U CN 207333179 U CN207333179 U CN 207333179U CN 201720359044 U CN201720359044 U CN 201720359044U CN 207333179 U CN207333179 U CN 207333179U
- Authority
- CN
- China
- Prior art keywords
- groove
- oil
- oil seal
- limiting groove
- blade
- 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
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims description 18
- 239000006071 cream Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 38
- 238000005299 abrasion Methods 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model discloses a kind of power assistance pump for steering, it is good to aim to provide a kind of transmission effect, abrasion to blade is lacked, it is dust-proof, oil sealing effect is good and the power assistance pump for steering of high lubricating effect, its key points of the technical solution are that stator is equipped with some limit protrusions, formed with limiting groove between two adjacent limit protrusions, limiting groove includes two groove inner walls and slot bottom, two groove inner walls and slot bottom are in arc-shaped, the circular arc opening direction of two groove inner walls is towards outside limiting groove, the circular arc opening direction of slot bottom is towards in limiting groove, the rotor is equipped with the connection bump being adapted with limiting groove, the blade is provided with oil groove below the forward surface in blade rotary motion direction, the depth of oil groove is between 0.2 0.21mm, the utility model is suitable for technical field of automobile accessories.
Description
Technical field
A kind of technical field of automobile accessories is the utility model is related to, more specifically, it relates to a kind of power assistance pump for steering.
Background technology
Automobile booster pump refers to a kind of component for contributing to automotive performance to be lifted and stablized, and power steering is mainly that assistance is driven
The person of sailing makees automobile steering adjustment, mitigates the firmly intensity for beating steering wheel for driver.Certainly, peace of the power-assisted steering in running car
Also have certain effect on Quan Xing, economy.
At present, the power assistance pump for steering of in the market, it includes the pump housing, and the main shaft being arranged in the pump housing, the pump housing are set
There are installation cavity and postposition chamber, main shaft includes being placed in the connecting pin in installation cavity, is additionally provided with and is arranged on connecting pin in installation cavity
Preceding oil distribution casing, hub disk and stator, rotor and blade before being placed between oil distribution casing and hub disk, the postposition chamber include according to
The left back of secondary connection puts chamber and right postposition chamber, and left back intracavitary of putting is equipped with outside framework oil seal, and right postposition intracavitary is equipped with bearing, postposition chamber
Opening is equipped with circlip.The fiting effect between rotor and stator in traditional power assistance pump for steering is poor, easily occurs
Skid, so as to reduce transmission effect, and scraping can not form oil film between blade base angle and rotor slot, before the notch direction of motion
Side is easy to wear, rotor slot and the heavy wear problem of blade mainly occurs；And the dust-proof and oil sealing effect of traditional outside framework oil seal
It is all the problem of presently, there are that fruit is poor and poor to the lubricant effect of main shaft.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide one kind transmission effect it is good, to blade
Abrasion lack, dust-proof, oil sealing effect is good and the power assistance pump for steering of high lubricating effect.
To achieve the above object, the utility model provides following technical solution：A kind of power assistance pump for steering, including the pump housing,
And the main shaft in the pump housing is arranged at, the pump housing is equipped with installation cavity and postposition chamber, and main shaft includes the company being placed in installation cavity
End is connect, before the preceding oil distribution casing being arranged on connecting pin, hub disk are additionally provided with installation cavity and is placed between oil distribution casing and hub disk
Stator, rotor and blade, the postposition chamber include it is sequentially connected it is left back put chamber and right postposition chamber, left back intracavitary of putting is equipped with
Outside framework oil seal, right postposition intracavitary are equipped with bearing, and the opening of postposition chamber is equipped with circlip, it is characterized in that：Set on the stator
There are some limit protrusions, include two groove inner walls and slot bottom formed with limiting groove, limiting groove between two adjacent limit protrusions,
Two groove inner walls and slot bottom are in arc-shaped, and the circular arc opening directions of two groove inner walls is towards outside limiting groove, the circular arc opening of slot bottom
Towards in limiting groove, the rotor is equipped with the connection bump being adapted with limiting groove in direction, and the blade is revolved in blade
Turn to be provided with oil groove below the forward surface of the direction of motion, the depth of oil groove is between 0.2-0.21mm.
By using above-mentioned technical proposal, stator is equipped with some limit protrusions, passes through the limit convex being equipped with stator
Rise, and formed with limiting groove between two adjacent limit protrusions, and limiting groove includes two groove inner walls and slot bottom, pass through by
Two groove inner walls and slot bottom are respectively provided with arc-shaped, further by the circular arc opening direction of two groove inner walls towards outside limiting groove,
For the circular arc opening direction of slot bottom towards in limiting groove, rotor is equipped with the connection bump being adapted with limiting groove, pass through by
The different circular arc opening directions towards setting so that rotor then adds between the two when being coordinated with limiting groove
Stability is connected to, and the circular arc opening direction groove inner wall of different directions and slot bottom then have connection bump preferable cladding
Effect, then further ensure good transmission effect, and blade is provided with oil below the forward surface in blade rotary motion direction
Groove, oil groove is set up below the direction of motion forward surface of blade, hydraulic pressure suspension is formed using the back pressure of pocket bottom, with blade bottom
Angle (in front of blade movement direction) and the frictional force of rotor slot side form reaction force, subtract the frictional force at blade base angle
It is small, abrasion of the rotor slot at blade base angle (in front of blade movement direction) place is reduced, and by the depth of oil groove in 0.2-
Between 0.21mm, then further ensuring reduces abrasion, so as to increase service life.
The utility model is further arranged to：The outside framework oil seal includes skeleton and the oil sealing for being arranged on the skeleton outer surface
Body, oil seal body include dustproof lip and oil seal lip, and dustproof lip and oil seal lip are contradicted with main shaft, and oil seal lip offsets relative to main shaft
The opposite side for touching side is equipped with spring groove, is equipped with spring in spring groove, oil seal lip is in arc-shaped, between dustproof lip and oil seal lip
Formed with Support, Support is in arc-shaped.
By using above-mentioned technical proposal, outside framework oil seal includes skeleton and the oil seal body for being arranged on the skeleton outer surface, is
The dust-proof effect and oil sealing effect of increase outside framework oil seal, because oil seal body includes dustproof lip and oil seal lip, and dustproof lip
Contradicted with oil seal lip with main shaft, the conflict effect between main shaft is better, then more can guarantee that good dust-proof effect and oil
Effect is sealed, further, oil seal lip is equipped with spring groove relative to the opposite side of the inconsistent side of main shaft, and in spring groove
Equipped with spring, the elastic force of spring, further increases to contradicting effect between oil seal lip and main shaft, and oil seal lip is in circular arc
Shape, the oil seal lip that convex structure is set then reduce the abrasion to itself, and under the fastening effect of spring, arc structure
The effect that is bonded between main shaft is then further ensured, and passes through shape formed with Support between dustproof lip and oil seal lip
Into Support so that in power under spring action, there is support effect good enough, Support is in arc-shaped, and
There is more preferable arc-shaped elastic support effect in the Support of arc-shaped, and has good recovery capability, and then adds skeleton
The using effect and oil sealing effect of oil sealing.
The utility model is further arranged to：Formed with shoe cream room between the installation cavity and preceding oil distribution casing.
By using above-mentioned technical proposal, formed with shoe cream room between installation cavity and preceding oil distribution casing, by installation cavity with before
The shoe cream room formed between oil distribution casing, then further increase the lubricant effect to main shaft, so that the abrasion to main shaft is reduced,
And then improve service life.
Brief description of the drawings
Fig. 1 removes rear cover structure schematic diagram for a kind of power assistance pump for steering embodiment of the utility model.
Fig. 2 is structure enlargement diagram at A in a kind of Fig. 1 of power assistance pump for steering embodiment of the utility model.
Fig. 3 is a kind of schematic cross-sectional view of power assistance pump for steering embodiment of the utility model.
Fig. 4 is structure enlargement diagram at B in a kind of Fig. 3 of power assistance pump for steering embodiment of the utility model.
Fig. 5 is a kind of structure diagram of power assistance pump for steering embodiment blade of the utility model.
Reference numeral in figure, 1- stators, 10- limiting grooves, 101- groove inner walls, 102- slot bottoms, 2- rotors, 3- blades, 30-
Oil groove, 40- skeletons, 41- oil seal bodies, 42- dustproof lips, 43- oil seal lips, 44- springs, 45- Support, oil distribution casing before 5-, 6- storages
Oil pocket.
Embodiment
A kind of power assistance pump for steering embodiment of the utility model is described further referring to figs. 1 to Fig. 4.
A kind of power assistance pump for steering, including the pump housing, and the main shaft being arranged in the pump housing, the pump housing be equipped with installation cavity with
And postposition chamber, main shaft include being placed in the connecting pin in installation cavity, and the preceding oil distribution casing being arranged on connecting pin is additionally provided with installation cavity
5th, hub disk and stator 1, rotor 2 and blade 3 before being placed between oil distribution casing 5 and hub disk, postposition chamber include sequentially connected
Left back to put chamber and right postposition chamber, left back intracavitary of putting is equipped with outside framework oil seal, and right postposition intracavitary is equipped with bearing, and the opening of postposition chamber is set
Flexible baffle ring, stator 1 are equipped with some limit protrusions, and by the limit protrusion being equipped with stator, and two is adjacent spacing
Formed with limiting groove 10 between protrusion, and limiting groove 10 includes two groove inner walls 101 and slot bottom 102, by by two grooves
Wall 101 and slot bottom 102 are respectively provided with arc-shaped, further by the circular arc opening direction of two groove inner walls 101 towards limiting groove
Outside 10, towards in limiting groove 10, rotor is equipped with the connection being adapted with limiting groove 10 for the circular arc opening direction of slot bottom 102
Protrusion, passes through the circular arc opening directions for setting different directions so that rotor 2 then increases when being coordinated with limiting groove 10
The stability that is connected between the two is added, and the circular arc opening direction groove inner wall 101 of different directions and slot bottom 102 are then to even
Connecing protrusion has preferable covered effect, then further ensures good transmission effect, blade 3 is in 3 rotary motion side of blade
To forward surface below be provided with oil groove 30, set up oil groove 30 below the direction of motion forward surface of blade 3, utilize pocket bottom
Back pressure form hydraulic pressure suspension, form anti-work with 3 base angle of blade (blade movement direction in front of) and the frictional force of rotor slot side
Firmly, reduce the frictional force at 3 base angle of blade, reduce mill of the rotor slot at 3 base angle of blade (in front of blade movement direction) place
Damage, and by the depth of oil groove between 0.2-0.21mm, then further ensuring reduces abrasion, so as to increase using the longevity
Life.
The utility model is further arranged to, and outside framework oil seal includes skeleton 40 and the oil sealing for being arranged on 40 outer surface of skeleton
Body 41, in order to increase the dust-proof effect of outside framework oil seal and oil sealing effect, because oil seal body includes dustproof lip 42 and oil seal lip 43,
And dustproof lip 42 and oil seal lip 43 are contradicted with main shaft, the conflict effect between main shaft is better, then more can guarantee that good
Dust-proof effect and oil sealing effect, further, oil seal lip 43 are equipped with bullet relative to the opposite side of the inconsistent side of main shaft
Spring groove, and spring 44 is equipped with spring groove, the elastic force of spring 44, further increases to being contradicted between oil seal lip 43 and main shaft
Effect, and oil seal lip 43 is in arc-shaped, the oil seal lip 43 that convex structure is set then reduce the abrasion to itself, and
Under the fastening effect of spring 44, arc structure then further ensures the effect that is bonded between main shaft, and 42 He of dustproof lip
Formed with Support 45 between oil seal lip 43, pass through the Support 45 of formation so that in power under spring action, have
Good support effect enough, Support 45 is in arc-shaped, and the Support 45 of arc-shaped has more preferable arc-shaped elastic to support
Effect, and there is good recovery capability, and then add the using effect and oil sealing effect of outside framework oil seal.
The utility model is further arranged to, and formed with shoe cream room 6 between installation cavity and preceding oil distribution casing 5, passes through installation cavity
The shoe cream room 6 formed between preceding oil distribution casing 5, then further increase the lubricant effect to main shaft, so as to reduce to main shaft
Abrasion, and then improve service life.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, the skill of this area
Art personnel carry out common variations and alternatives in the range of technical solutions of the utility model should all be included in the guarantor of the utility model
In the range of shield.
Claims (3)
1. a kind of power assistance pump for steering, including the pump housing, and the main shaft being arranged in the pump housing, the pump housing be equipped with installation cavity and after
Chamber is put, main shaft includes being placed in the connecting pin in installation cavity, and preceding oil distribution casing, the hub disk being arranged on connecting pin are additionally provided with installation cavity
And stator, rotor and blade before being placed between oil distribution casing and hub disk, the postposition chamber include sequentially connected left back put
Chamber and right postposition chamber, left back intracavitary of putting are equipped with outside framework oil seal, and right postposition intracavitary is equipped with bearing, and the opening of postposition chamber is equipped with elasticity
Baffle ring, it is characterized in that：The stator is equipped with some limit protrusions, formed with limiting groove, limit between two adjacent limit protrusions
Position groove includes two groove inner walls and slot bottom, and two groove inner walls and slot bottom are in arc-shaped, the circular arc opening direction court of two groove inner walls
To outside limiting groove, towards in limiting groove, the rotor is equipped with and is adapted with limiting groove for the circular arc opening direction of slot bottom
Connection bump, the blade is provided with oil groove below the forward surface in blade rotary motion direction, and the depth of oil groove is in 0.2-
Between 0.21mm.
2. a kind of power assistance pump for steering according to claim 1, it is characterized in that：The outside framework oil seal includes skeleton and is arranged on
The oil seal body of the skeleton outer surface, oil seal body include dustproof lip and oil seal lip, and dustproof lip and oil seal lip are contradicted with main shaft, oil sealing
Lip is equipped with spring groove relative to the opposite side of the inconsistent side of main shaft, and spring is equipped with spring groove, and oil seal lip is in arc-shaped,
Formed with Support between dustproof lip and oil seal lip, Support is in arc-shaped.
3. a kind of power assistance pump for steering according to claim 1, it is characterized in that：Formed between the installation cavity and preceding oil distribution casing
There is shoe cream room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359044.2U CN207333179U (en) | 2017-04-07 | 2017-04-07 | A kind of power assistance pump for steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359044.2U CN207333179U (en) | 2017-04-07 | 2017-04-07 | A kind of power assistance pump for steering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207333179U true CN207333179U (en) | 2018-05-08 |
Family
ID=62376033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720359044.2U Expired - Fee Related CN207333179U (en) | 2017-04-07 | 2017-04-07 | A kind of power assistance pump for steering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207333179U (en) |
-
2017
- 2017-04-07 CN CN201720359044.2U patent/CN207333179U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180508 |