CN206466009U - steering assembly - Google Patents
steering assembly Download PDFInfo
- Publication number
- CN206466009U CN206466009U CN201720163351.3U CN201720163351U CN206466009U CN 206466009 U CN206466009 U CN 206466009U CN 201720163351 U CN201720163351 U CN 201720163351U CN 206466009 U CN206466009 U CN 206466009U
- Authority
- CN
- China
- Prior art keywords
- steering gear
- packing ring
- steering
- mounting hole
- steering assembly
- 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 discloses a kind of steering assembly, including steering gear housing and the steering gear rack being arranged in the steering gear housing body, the steering gear rack connects draw-in bar spherical shell, the draw-in bar spherical shell is provided with packing ring adjacent to the side of the steering gear housing, mounting hole is formed with the packing ring, the mounting hole is sheathed on the steering gear rack, and is offered on the packing ring and cracking that the mounting hole is connected.The steering assembly that the utility model is provided, can effectively buffering collision of closed and the noise produced and vibrations, lifting vehicle NVH quality；In addition, packing ring of the present utility model can also effectively discharge the stress for hitting and producing, and then avoid producing fracture.
Description
Technical field
The utility model is related to electric power steering technical field, more particularly to a kind of steering assembly.
Background technology
Electric power steering (EPS) is in the car using more and more extensively, compared to traditional hydraulic power-assisted steering, with knot
Structure is simple, arrangement convenience, fuel-economizing, small noise the advantages of.Electric power steering feel when low speed is turned to is light, during high speed steering
Assist rate is more steady, improves vehicle operational performance.
Mechanical gear rack steering gear is the important component of electric boosting steering system, and the effect of steering gear is exactly
The power-assisted that EPS is produced is applied to wheel, realizes and turns to.In the prior art, steering gear middle rack stroke generally by
Position-limit mechanism is realized, when steering wheel or so gets to a fixing turn respectively, left and right draw-in bar ball inside steering assembly
Shell can hit the limited step on steering gear housing, and then realize spacing.
Because the stroke limit structure on steering gear housing is aluminum casting, draw-in bar spherical shell is metal material, therefore when side
When getting to extreme position to disk, draw-in bar spherical shell is certain to strike stroke limit structure, produces strike note.Steering wheel, which is beaten, to be got over
It hurry up, this sound is fiercer and can be delivered on steering wheel, cause vibrations, influence riding experience, reduce the NVH quality of vehicle.
There is another design in the prior art, a rubber block is covered on interior spherical shell of pull rod, the rubber block is one
Individual cylindrical enclosed construction, can prevent the spacing housing of bulb from directly being contacted with metal spacing block and producing collision.But work as direction
When disk urgency steering effort is excessive or turns to left and right maximum angle, draw-in bar spherical shell is fiercely rushed with steering gear housing generation moment
Hit, because the rubber block is enclosed construction, stress can not discharge during stress, so that its compression, long-time stress
When the easy fragmentation of rubber block, cause steering gear function to be affected.
Utility model content
The purpose of this utility model is to provide a kind of steering assembly, to solve the problems of the prior art, can delay
Shock vibrations when steering wheel gets to extreme position are rushed, and are avoided that block fragmentation.
The utility model provides a kind of steering assembly, including steering gear housing and is arranged in the steering gear housing body
Steering gear rack, the steering gear rack connects draw-in bar spherical shell, and the draw-in bar spherical shell is adjacent to the steering gear housing
Side, which is provided with packing ring, the packing ring, is formed with mounting hole, and the mounting hole is sheathed on the steering gear rack, and described
Offered on packing ring and cracking that the mounting hole is connected.
Steering assembly as described above, these, it is preferred to, the boss of radial direction, institute are provided with the inside of the packing ring
State the groove for being provided with and coordinating with the boss on steering gear rack.
Steering assembly as described above, these, it is preferred to, the quantity of the boss is two.
Steering assembly as described above, these, it is preferred to, the company of two boss and the central point of the packing ring
Line is straight line.
Steering assembly as described above, these, it is preferred to, it is described to crack for linear structure.
Steering assembly as described above, these, it is preferred to, it is described crack where straight line and two boss
Line is mutually perpendicular to.
Steering assembly as described above, these, it is preferred to, the outside of the packing ring is circle.
Steering assembly as described above, these, it is preferred to, the size of the mounting hole is less than the steering gear rack
The section of upper and mounting hole mating part.
Steering assembly as described above, these, it is preferred to, the packing ring is by glass fibre reinforced nylon material system
Into.
Steering assembly as described above, these, it is preferred to, the draw-in bar spherical shell and the steering gear rack screw thread
Connection.
Steering assembly of the present utility model, is provided with packing ring, institute in interior spherical shell of pull rod adjacent to the side of steering gear housing
State and mounting hole is formed with packing ring, the mounting hole is sheathed on steering gear rack, and offered on the packing ring and the peace
What dress hole was connected cracks.When steering wheel beat to draw-in bar spherical shell and steering gear housing close to when, pass through packing ring and steering gear housing
Contact-impact, and hit not by draw-in bar spherical shell, due to the structure and material property of packing ring itself, it can effectively buffer and hit
The noise for hitting and producing and vibrations, lift vehicle NVH quality.
Further, since cracking of being connected with mounting hole is offered on the packing ring, can be effective when packing ring is knocked stress
The stress produced is hit in release, and it will not produce stress concentration in a circumferential direction, and then be avoided that generation fracture, improve it
Service life.
Brief description of the drawings
The structure chart for the steering assembly that Fig. 1 provides for the utility model embodiment；
Fig. 2 is the structure chart of the packing ring of embodiment illustrated in fig. 1；
Fig. 3 is the installment state figure of the packing ring of embodiment illustrated in fig. 1.
Description of reference numerals：
1- steering gear housing 11- end face 2- steering gear rack 20- grooves
3- draw-in bar spherical shell 4- packing ring 40- mounting holes 41- cracks 42- boss
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and can not be construed to of the present utility model
Limitation.
The structure chart for the steering assembly that Fig. 1 provides for the utility model embodiment；Fig. 2 is the pad of embodiment illustrated in fig. 1
The structure chart of circle；Fig. 3 is the installment state figure of the packing ring of embodiment illustrated in fig. 1.
Fig. 1 is refer to, the utility model embodiment provides a kind of steering assembly, will during the effect of the steering assembly
The power-assisted that EPS is produced is applied to wheel, realizes and turns to.
The steering assembly of the embodiment includes steering gear housing 1 and the steering gear rack being arranged in steering gear housing 1
2, the connection draw-in bar of steering gear rack 2 spherical shell 3, draw-in bar spherical shell 3 is provided with packing ring 4, packing ring adjacent to the side of steering gear housing 1
Mounting hole 40 is formed with 4, mounting hole 40 is sheathed on steering gear rack 2, and offers what is connected with mounting hole 40 on packing ring 4
Crack 41.It can be connected through a screw thread between foregoing draw-in bar spherical shell 3 and steering gear rack 2, concrete structure is referred to existing and changed
The technology entered.
When steering wheel is moved, steering gear rack 2 is translated relative to steering gear housing 1.And when steering wheel gets to the limit
During position, the end face 11 of draw-in bar spherical shell 3 and steering gear housing 1 against.The end face part of steering gear housing 1 typically uses cast aluminium
Part, and draw-in bar spherical shell 3 typically uses metal material.In order to avoid directly touching between draw-in bar spherical shell 3 and steering gear housing 1
Hit, be provided with interior spherical shell of pull rod 3 adjacent to the side of steering gear housing 1 on packing ring 4, packing ring 4 and be formed with mounting hole 40, the installation
Hole 40 is sheathed on steering gear rack 2.
The packing ring 4 can be made up of a variety of possible materials, be preferably made up of glass fibre reinforced nylon material, with high-strength
The good advantage of degree, impact resistance, toughness and heat endurance.
When steering wheel beat to draw-in bar spherical shell 3 and steering gear housing 1 close to when, contacted by packing ring 4 with steering gear housing 1
Collision, and hits not by draw-in bar spherical shell 3, due to the structure and material property of packing ring 4 itself, can effective buffering collision of closed
And the noise produced and vibrations, lift vehicle NVH quality.
Further, since offered on the packing ring 4 connected with mounting hole 40 crack 41, when packing ring 4 is knocked stress,
The stress for hitting and producing can be effectively discharged, thus stress concentration will not be produced in a circumferential direction, and then is avoided that generation is broken,
Improve service life, it is ensured that the product reliability of the packing ring 4.
Further, the size of mounting hole 40 is less than the section with the mating part of mounting hole 40 on steering gear rack 2.Due to
41, therefore the packing ring 4 flexible deformation in assembling of cracking connected with mounting hole 40 is offered on packing ring 4, by mounting hole 40
Be sized to smaller, be able to can block on steering gear rack 2 tighter, be difficult to loosen in motion process, stability
More preferably.
The packing ring 4 can be arranged on steering gear rack 2 and draw-in bar spherical shell 3 using various ways.Preferably, refer to
Fig. 2 to Fig. 3, the inner side of packing ring 4 is provided with the groove for being provided with and coordinating with boss 42 on the boss 42 of radial direction, steering gear rack 2
20.By the cooperation of the boss 42 and groove 20, stably packing ring 4 can be stuck on steering gear rack 2.
The quantity of boss 42 can be one or more, and preferably its quantity is two.Two boss 42 can be located at relative
Position, by 2 points of support stress, packing ring 4 is sleeved on steering gear rack 2.Specifically, in two boss 42 and packing ring 4
The line of heart point is straight line, and compact conformation is attractive in appearance, uniform force.
Crack 41 can be straight line, curve or various polymorphic structures, its quantity can also be a variety of possibility.It is preferred that the vertical masonry joint
One is only provided with, and it is linear structure, positioned at the radial direction and the Internal and external cycle of insertion packing ring 4 of packing ring 4, is easy to preferably release
Put the stress for hitting and producing, it is to avoid produce stress concentration in a circumferential direction.
In addition, the line of the straight line and two boss 42 at 41 places of cracking is mutually perpendicular to, it is easy to fabricate, and can guarantee that
It is more uniformly stressed.The outside of packing ring 4 is circle so that the cirque structure of semi open model, overall structure is integrally formed in packing ring 4
It is compact attractive in appearance.
The steering assembly that the utility model embodiment is provided, when steering wheel is beaten to draw-in bar spherical shell 3 and steering gear housing 1
When close, by packing ring 4 and the contact-impact of steering gear housing 1, and hit not by draw-in bar spherical shell 3, due to packing ring 4 itself
Structure and material property, can effectively buffering collision of closed and the noise produced and vibrations, lift vehicle NVH quality.Further, since
Offered on the packing ring 4 connected with mounting hole 40 crack 41, when packing ring 4 is knocked stress, can effectively discharge shock production
Raw stress, and then generation fracture is avoided that, its service life and reliability are improved, will not fail too fast and shadow because of packing ring 4
Ring steering gear function.
Construction of the present utility model, feature and action effect is described in detail according to the embodiment shown in schema above, with
Upper described is only preferred embodiment of the present utility model, but the utility model is not to limit practical range shown in drawing, it is every according to
According to the made change of conception of the present utility model, or the equivalent embodiment of equivalent variations is revised as, still without departing from specification and figure
, all should be in protection domain of the present utility model when showing covered spirit.
Claims (10)
1. a kind of steering assembly, including steering gear housing and the steering gear rack being arranged in the steering gear housing body, described
Steering gear rack connects draw-in bar spherical shell, it is characterised in that the draw-in bar spherical shell is set adjacent to the side of the steering gear housing
It is equipped with packing ring, the packing ring and is formed with mounting hole, the mounting hole is sheathed on the steering gear rack, and on the packing ring
Offer and cracking that the mounting hole is connected.
2. steering assembly according to claim 1, it is characterised in that the convex of radial direction is provided with the inside of the packing ring
The groove coordinated with the boss is provided with platform, the steering gear rack.
3. steering assembly according to claim 2, it is characterised in that the quantity of the boss is two.
4. steering assembly according to claim 3, it is characterised in that the central point of two boss and the packing ring
Line be straight line.
5. steering assembly according to claim 4, it is characterised in that described to crack for linear structure.
6. steering assembly according to claim 5, it is characterised in that it is described crack where straight line and two it is described convex
The line of platform is mutually perpendicular to.
7. the steering assembly according to claim any one of 1-6, it is characterised in that the outside of the packing ring is circle.
8. the steering assembly according to claim any one of 1-6, it is characterised in that the size of the mounting hole is less than institute
State the section with mounting hole mating part on steering gear rack.
9. the steering assembly according to claim any one of 1-6, it is characterised in that the packing ring is by glass fiber reinforcement
Nylon material is made.
10. the steering assembly according to claim any one of 1-6, it is characterised in that the draw-in bar spherical shell and described
Steering gear rack is threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163351.3U CN206466009U (en) | 2017-02-22 | 2017-02-22 | steering assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720163351.3U CN206466009U (en) | 2017-02-22 | 2017-02-22 | steering assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206466009U true CN206466009U (en) | 2017-09-05 |
Family
ID=59708559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720163351.3U Expired - Fee Related CN206466009U (en) | 2017-02-22 | 2017-02-22 | steering assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206466009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555777A (en) * | 2018-11-30 | 2019-04-02 | 丰业迪睦斯（芜湖）汽车部件有限公司 | Car door handle fastening bolt gasket fixed structure |
-
2017
- 2017-02-22 CN CN201720163351.3U patent/CN206466009U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555777A (en) * | 2018-11-30 | 2019-04-02 | 丰业迪睦斯（芜湖）汽车部件有限公司 | Car door handle fastening bolt gasket fixed structure |
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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 |
Granted publication date: 20170905 Termination date: 20200222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |