CN205589295U - Auto electric power assisted steering ware - Google Patents
Auto electric power assisted steering ware Download PDFInfo
- Publication number
- CN205589295U CN205589295U CN201620453247.3U CN201620453247U CN205589295U CN 205589295 U CN205589295 U CN 205589295U CN 201620453247 U CN201620453247 U CN 201620453247U CN 205589295 U CN205589295 U CN 205589295U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- electric power
- housing
- nut
- assisted steering
- 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
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Abstract
The utility model provides an auto electric power assisted steering ware belongs to auto -parts technical field. Structure that it had solved current auto electric power assisted steering ware stable and turn to problem that the effect is not good inadequately. This auto electric power assisted steering ware, which comprises a housin, linked firmly the screw rod to the axial and the screw rod level transversely sets up on the casing, the outside threaded connection of screw rod has the steering nut, between the inside wall of steering nut and the lateral wall of screw rod the equipartition have can circulating rolling the ball, be equipped with department of tooth profile no. 1 on the lateral wall of steering nut, the axial links firmly and turns to the rocking arm axle and turn to the downside of rocking arm position of axle in the screw rod on the casing, turn to the rocking arm axle and the screw rod is perpendicular sets up, the lateral wall that turns to the rocking arm axle is equipped with department of tooth profile no. 2 and department of tooth profile no. 1 and department of tooth profile two -phase meshing. This auto electric power assisted steering ware has stable in structure and turns to the better advantage of effect.
Description
Technical field
This utility model belongs to technical field of automobile, relates to a kind of steering gear, especially
It it is a kind of vehicle electric power-assisted steering device.
Background technology
Vehicle electric power-assisted steering device is that a kind of direct dependence motor provides the dynamic of auxiliary torque
Power steering, in order to help driver to solve the problem that handling maneuver burden is the heaviest,
Main by torque sensor, vehicle speed sensor, motor, reducing gear and Electronic Control list
The compositions such as unit, mechanical driving important during wherein reducing gear is steering gear.
A kind of automobile steering device (application number: 2008 as disclosed in Chinese patent
10203885.X), including left and right steering linkage, steering gear housing, turn to power shaft and
Little gear, left push rod, right push rod and a cam, cam central authorities are provided with one and engage with little gear
Ring gear, be connected on steering gear housing the central rotatable of ring gear, ring gear
Periphery is provided with one section of leftmost curve groove and one section of right side graph groove；One end of left push rod is provided with a left side
Bearing pin, left bearing pin inserts in leftmost curve groove, the other end of left push rod and left steering pull bar phase
Hinged；One end of right push rod is provided with right bearing pin, and right bearing pin inserts in right side graph groove, and the right side pushes away
The other end of bar is hinged with right turn pull bar.But this automobile steering device passes through cam mechanism band
Dynamic left push rod realizes turning to the swing of right push rod, and therefore its structure is not sufficiently stable and turns to effect
The most bad.
Summary of the invention
The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that
A kind of Stability Analysis of Structures and the preferable vehicle electric power-assisted steering device of turning efficiency.
The purpose of this utility model can be realized by following technical proposal: a kind of automobile electricity
Dynamic power-assisted steering device, including housing, described housing is axially fixed with screw rod and described
The horizontal horizontally set of screw rod, the outside screw of described screw rod connects steering nut, institute
It is evenly equipped with and can follow between medial wall and the lateral wall of described screw rod of the steering nut stated
The ball that ring rolls, it is characterised in that the lateral wall of described steering nut is provided with tooth
Shape portion one, described housing is axially fixed with pitman shaft and described pitman arm
Axle is positioned at the downside of described screw rod, and described pitman shaft is vertical with described screw rod
Arranging, the lateral wall of described pitman shaft is provided with toothed region two and described toothed region
One is meshed with described toothed region two.
Operationally, driven by motor screw rod rotates, by the screw thread of screw rod Yu steering nut
It is connected, drives steering nut to rotate, owing to the lateral wall of steering nut is provided with toothed region one,
By engaging of toothed region one and toothed region two, pitman shaft is driven to rotate, it is achieved vapour
The turning function of car, owing to being provided with ball between steering nut and the lateral wall of screw rod, because of
This has, and structure is more stable and the preferable advantage of turning efficiency.
In above-mentioned a kind of vehicle electric power-assisted steering device, described pitman shaft
The end of one end is embedded with the load adjuster in column, the middle part of described load adjuster
Threaded have bolt, and the outer end of described bolt is threaded nut and described spiral shell
Mother is positioned at the outside of described housing.By arranging load adjuster, regulate pitman arm
The degree of tightness of axle, has and regulates conveniently advantage.
In above-mentioned a kind of vehicle electric power-assisted steering device, described housing is provided with and props up
Pushing out ring, the lateral wall of described support ring fixes with described housing, and described turns to
Rocker arm shaft passes support ring.By arranging above-mentioned support ring, reduce pitman shaft
Abrasion, improve service life.
In above-mentioned a kind of vehicle electric power-assisted steering device, the middle part of described support ring
It is equipped with through hole, with the support between the pitman shaft described in one end and described housing
The quantity of ring is 1 to 3.
In above-mentioned a kind of vehicle electric power-assisted steering device, described housing is provided with axle
Hold lid and described bearing cap is fixedly connected with described housing by screw, described bearing
Covering location has bearing, one end of described screw rod to be fixedly connected with the inner of described bearing.
By arranging end cap and bearing, screw rod is made to have preferable locating effect.
In above-mentioned a kind of vehicle electric power-assisted steering device, the upside of described housing sets
Having peep-hole, threaded on described peep-hole have plug.By arranging peep-hole,
Can be easy to the parts in housing are observed, have and use conveniently advantage.
Compared with prior art, this one vehicle electric power-assisted steering device has the advantage that
1, it is provided with toothed region one due to the lateral wall of steering nut, by toothed region one and tooth
The engagement in shape portion two, drives pitman shaft to rotate, it is achieved the turning function of automobile, by
Between steering nut and the lateral wall of screw rod, it is provided with ball, therefore there is structure the most steady
Determine and the preferable advantage of turning efficiency；
2, by arranging load adjuster, the degree of tightness of regulation pitman shaft, there is regulation
Conveniently advantage；
3, by arranging peep-hole, it is possible to be easy to the parts in housing are observed, tool
Use conveniently advantage.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of this kind of vehicle electric power-assisted steering device.
Fig. 2 is another cross-sectional schematic of this kind of vehicle electric power-assisted steering device.
In figure, 1, housing；2, screw rod；3, steering nut；3a, toothed region one；4、
Ball；5, pitman shaft；5a, toothed region two；6, load adjuster；7, bolt；
8, nut；9, support ring；10, bearing；11, bearing cap；12, plug.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model
Technical scheme be further described, but this utility model is not limited to these embodiments.
As illustrated in fig. 1 and 2, a kind of vehicle electric power-assisted steering device, including housing 1, shell
Axially being fixed with the screw rod 2 that horizontal cross is arranged on body 1, the outside screw of screw rod 2 is even
It is connected to steering nut 3, between medial wall and the lateral wall of screw rod 2 of steering nut 3 all
Be furnished with can the ball 4 of circulating rolling, the lateral wall of steering nut 3 is provided with toothed region
One 3a, housing 1 is axially fixed with pitman shaft 5, and pitman shaft 5 is positioned at spiral shell
The downside of bar 2, pitman shaft 5 is vertically arranged with screw rod 2, pitman shaft 5
Lateral wall is provided with toothed region two 5a, toothed region one 3a and is meshed with toothed region two 5a.
The end of one end of pitman shaft 5 is embedded with the load adjuster 6 in column, carries
The middle part of lotus adjustor 6 is threaded bolt 7, and the outer end of bolt 7 is threaded to be had
Nut 8, nut 8 is positioned at the outside of housing 1, regulates the degree of tightness of pitman shaft 5,
Have and regulate conveniently advantage.
Housing 1 is provided with support ring 9, and the lateral wall of support ring 9 fixes with housing 1,
Pitman shaft 5 is through support ring 9.The middle part of support ring 9 is equipped with through hole, same
The quantity of the support ring 9 between end pitman shaft 5 and housing 1 is 1 to 3, fall
The low abrasion of pitman shaft 5, improves service life.
It is solid with housing 1 phase by screw that housing 1 is provided with bearing cap 11 and bearing cap 11
Even, on bearing cap 11, there is the inner of bearing 10, one end of screw rod 2 and bearing 10 location
It is fixedly connected with.The upside of housing 1 is provided with peep-hole, and threaded on peep-hole have plug 12,
Can be easy to the parts in housing 1 are observed, have and use conveniently advantage.
Operationally, driven by motor screw rod 2 rotates, by screw rod 2 and steering nut 3
Screw thread be connected, drive steering nut 3 rotate, owing to the lateral wall of steering nut 3 sets
There is toothed region one 3a, by engaging of toothed region one 3a and toothed region two 5a, drive and turn
Rotate to rocker arm shaft 5, it is achieved the turning function of automobile, due to steering nut 3 and screw rod
Be provided with ball 4 between the lateral wall of 2, therefore have that structure is more stable and turning efficiency relatively
Good advantage.
Specific embodiment described herein is only for example to this utility model spirit
Explanation.This utility model person of ordinary skill in the field can be to described concrete
Embodiment is made various amendment or supplements or use similar mode to substitute, but not
Spirit of the present utility model can be deviateed or surmount model defined in appended claims
Enclose.
Although the most more employing housing 1, screw rod 2, steering nut 3, toothed region
One 3a, ball 4, pitman shaft 5, toothed region two 5a, load adjuster 6, spiral shell
The terms such as bolt 7, nut 8, support ring 9, bearing 10, bearing cap 11, plug 12,
But it is not precluded from using the probability of other term.These terms are used to be only used to more
Describe and explain essence of the present utility model easily；It is construed as any attached
The restriction added is all contrary with this utility model spirit.
Claims (6)
1. a vehicle electric power-assisted steering device, including housing (1), described housing (1)
On be axially fixed with screw rod (2) and described screw rod (2) horizontal cross and arrange, described spiral shell
The outside screw of bar (2) connects steering nut (3), the inner side of described steering nut (3)
Being evenly equipped with between the lateral wall of wall and described screw rod (2) can the ball of circulating rolling
(4), it is characterised in that the lateral wall of described steering nut (3) is provided with toothed region one
(3a) pitman shaft (5) and described turning to axially it are fixed with on, described housing (1)
Rocker arm shaft (5) is positioned at the downside of described screw rod (2), described pitman shaft (5) and institute
The screw rod (2) stated is vertically arranged, and the lateral wall of described pitman shaft (5) is provided with profile of tooth
Portion two (5a) and described toothed region one (3a) are meshed with described toothed region two (5a).
A kind of vehicle electric power-assisted steering device the most according to claim 1, its feature
Being, the end of one end of described pitman shaft (5) is embedded with the load in column and adjusts
Device (6), the middle part of described load adjuster (6) is threaded bolt (7), described
The outer end of bolt (7) is threaded has nut (8) and described nut (8) to be positioned at described
The outside of housing (1).
A kind of vehicle electric power-assisted steering device the most according to claim 1, its feature
Being, described housing (1) is provided with support ring (9), the outside of described support ring (9)
Wall fixes with described housing (1), and described pitman shaft (5) passes support ring
(9)。
A kind of vehicle electric power-assisted steering device the most according to claim 3, its feature
Being, the middle part of described support ring (9) is equipped with through hole, shakes with turning to described in one end
The quantity of the support ring (9) between arm axle (5) and described housing (1) is 1 to 3.
5. turn according to a kind of motorcar electric power-assisted described in claim 1 or 2 or 3 or 4
To device, it is characterised in that described housing (1) is provided with bearing cap (11) and described axle
Hold lid (11) to be fixedly connected with described housing (1) by screw, described bearing cap (11)
There is bearing (10) upper location, and one end of described screw rod (2) is interior with described bearing (10)
End is fixedly connected with.
6. turn according to a kind of motorcar electric power-assisted described in claim 1 or 2 or 3 or 4
To device, it is characterised in that the upside of described housing (1) is provided with peep-hole, and described peeps
Threaded on window have plug (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620453247.3U CN205589295U (en) | 2016-05-18 | 2016-05-18 | Auto electric power assisted steering ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620453247.3U CN205589295U (en) | 2016-05-18 | 2016-05-18 | Auto electric power assisted steering ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205589295U true CN205589295U (en) | 2016-09-21 |
Family
ID=56931109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620453247.3U Expired - Fee Related CN205589295U (en) | 2016-05-18 | 2016-05-18 | Auto electric power assisted steering ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205589295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407029A (en) * | 2019-08-20 | 2021-02-26 | 浙江世宝股份有限公司 | High-efficiency large-torque mechanical steering gear device |
| CN113443002A (en) * | 2021-06-04 | 2021-09-28 | 浙江万安泵业有限公司 | Electric power steering device of commercial vehicle |
-
2016
- 2016-05-18 CN CN201620453247.3U patent/CN205589295U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112407029A (en) * | 2019-08-20 | 2021-02-26 | 浙江世宝股份有限公司 | High-efficiency large-torque mechanical steering gear device |
| CN113443002A (en) * | 2021-06-04 | 2021-09-28 | 浙江万安泵业有限公司 | Electric power steering device of commercial vehicle |
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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 |
Granted publication date: 20160921 Termination date: 20170518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |