CN205780719U - Automobile steering device clearance adjustment mechanism - Google Patents
Automobile steering device clearance adjustment mechanism Download PDFInfo
- Publication number
- CN205780719U CN205780719U CN201620496989.4U CN201620496989U CN205780719U CN 205780719 U CN205780719 U CN 205780719U CN 201620496989 U CN201620496989 U CN 201620496989U CN 205780719 U CN205780719 U CN 205780719U
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- CN
- China
- Prior art keywords
- tooth bar
- rolled portion
- steering device
- adjustment mechanism
- automobile steering
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- 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.)
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Abstract
This utility model provides a kind of automobile steering device clearance adjustment mechanism, adapt to have in the intermeshing steering gear turning to and inputting little gear and tooth bar, it housing including being arranged on tooth bar side, roll is arranged in housing, to form the rolled portion coordinated with the rolling of tooth bar when tooth bar moves, and be formed in housing, and it is configured to the elastic pushing tow to rolled portion, so that rolled portion keeps the elastic adjustment portion contacted with tooth bar.After automobile steering device clearance adjustment mechanism of the present utility model can wear and tear turning to the site of engagement inputted between little wheel and rack, the gap forming abrasion is adjusted compensating, to ensure the positive engagement of tooth bar and little gear.And form rolling friction by using rolled portion to make between tooth bar and rolled portion, the frictional resistance between tooth bar and rolled portion can be reduced, thus the wear extent of tooth bar and rolled portion can be reduced, extend its service life, and there is preferable using effect.
Description
Technical field
This utility model relates to Automotive Steering Technology field, adjusts machine particularly to a kind of automobile steering device gap
Structure.
Background technology
In automobile steering system, steering gear plays a part transmit moment of torsion and change steering force direction, mesh
Before more common steering gear be rack and pinion steering gear, rack and pinion steering gear be by rack-and-pinion between
Engagement realize the transmission of power, but for a long time after work, the site of engagement between rack-and-pinion can produce relatively
Big abrasion, and make the back lash between rack-and-pinion become big, it not only results in abnormal sound and occurs, and impact is driven
Sail comfortableness, and along with the continuous increase in gap, will also result in part itself and damage, and affect and turn to merit
Energy.
Utility model content
In view of this, this utility model is directed to a kind of automobile steering device clearance adjustment mechanism, existing to solve
There is technical problem present in technology, and there is preferable usability.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of automobile steering device clearance adjustment mechanism, adapt to have intermeshing turn to the little gear of input and
In the steering gear of tooth bar, including:
Housing；
Rolled portion, in the housing being arranged on described tooth bar side of rolling, to be formed when described tooth bar moves
Rolling with described tooth bar coordinates；
Elastic adjustment portion, is formed in described housing, and is configured to the elastic pushing tow to described rolled portion,
So that described rolled portion keeps contacting with described tooth bar.
Further, be formed on described tooth bar outer surface along described tooth bar length direction arrange, be available for
The depressed part that described rolled portion is partially submerged into.
Further, the length that the length of described depressed part moves equal to described tooth bar, and in described depressed part
Two ends be respectively formed with and smooth be connected on the curved surface bottom described depressed part and between described tooth bar outer surface.
Further, the cross section of described depressed part is arc, and the outer surface of described rolled portion is recessed with described
The arc that the portion of falling into is suitable.
Further, on described depressed part cross section, because of in the middle part of described depressed part inside described tooth bar
Recessed, and and two-point contact between described rolled portion.
Further, in described depressed part, it is provided with oil storage tank.
Further, described elastic adjustment portion includes that described elastic adjustment portion includes being bolted in described housing
Adjust seat, and install the elastic component on described adjustment seat, described elastic component via adjustment block to described rolling
Dynamic portion applies elastic top thrust, is formed with the containing cavity of accommodating described rolled portion bottom described adjustment block.
Further, described containing cavity top has the arcwall face adapting to described rolled portion outer surface.
Further, it is respectively arranged at two ends with, in described rolled portion, the insertion axle inserted in described adjustment block, in institute
State and be folded with elastic ring between insertion axle and described adjustment block.
Further, between described adjustment block and described housing, it is folded with elastic ring.
Relative to prior art, this utility model has the advantage that
(1) automobile steering device clearance adjustment mechanism described in the utility model, when moving by being arranged on tooth bar
Formed with tooth bar and roll the rolled portion coordinated, and rolled portion is carried out elastic pushing tow, and make rolled portion and tooth
Bar keeps the elastic adjustment portion of contact, can wear and tear turning to the site of engagement inputted between little wheel and rack
After, the gap forming abrasion is adjusted compensating, to ensure the positive engagement of tooth bar and little gear.And
Form rolling friction by using rolled portion to make between tooth bar and rolled portion, rubbing between tooth bar and rolled portion can be reduced
Wipe resistance, thus the wear extent of tooth bar and rolled portion can be reduced, extend its service life, and have preferably
Using effect.
(2) depressed part is set, it is ensured that the reliability abutted between rolled portion with tooth bar.
(3) length that the length of depressed part is arranged to move with tooth bar is equal, and is formed at the two ends of depressed part
Curved surface, can make the rolled portion braking in depressed part end more steady.
(4) cross section of depressed part and the outer surface of rolled portion are arranged to suitable arc, can make rolled portion
More stable with contacting between depressed part.
(5) two-point contact between depressed part and rolled portion, can be easy to the automatic aligning of rolled portion.
(6) setting of oil storage tank, it is ensured that the lubricant effect between rolled portion and depressed part, both reducing
Between frictional resistance.
(7) containing cavity is set, mechanism's overall structure can be made more stable.The setting in containing cavity top curve face
The rolling that then can make rolled portion is more steady.
(8) by inserting the setting of axle, rolled portion installation in adjustment block can be easy to.Insert axle and adjustment
Sandwiched elastic ring between block, it is possible to decrease noise during relative motion between rolled portion and adjustment block.
(9) sandwiched elastic ring between adjustment block and housing, it is possible to decrease the friction noise between adjustment block and housing.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, this
The schematic description and description of utility model is used for explaining this utility model, is not intended that this practicality new
The improper restriction of type.In the accompanying drawings:
Fig. 1 is the structure diagram of the automobile steering device described in this utility model embodiment；
Fig. 2 is the structure diagram of the tooth bar described in this utility model embodiment；
Fig. 3 is the structure diagram of the gap adjusting mechanism described in this utility model embodiment；
Fig. 4 is the partial enlarged drawing in Fig. 3 at A；
Fig. 5 is the structure diagram of the adjustment block described in this utility model embodiment；
Fig. 6 is the half sectional view of the adjustment block described in this utility model embodiment；
Fig. 7 is the assembling schematic diagram of the adjustment block described in this utility model embodiment and rolled portion；
Fig. 8 is the overall half sectional view after adjustment block is assembled with rolled portion；
Fig. 9 is the tooth bar described in this utility model embodiment when moving to extreme position, rolled portion and curved surface
Cooperation schematic diagram；
Description of reference numerals:
1-turns to the little gear of input, 2-tooth bar, 21-depressed part, 22-curved surface, 23-oil storage tank, and 3-gap adjusts
Mechanism, 31-housing, 32-rolled portion, 321-inserts axle, 33-elasticity adjustment portion, and 331-adjusts seat, 332-
Adjustment block, 333-containing cavity, 334-arcwall face, 335-elastic component, 41-the first elastic ring, 42-second is elastic
Circle.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
This utility model relates to a kind of automobile steering device clearance adjustment mechanism, adapts to have intermeshing turn
In the steering gear inputting little gear and tooth bar, turn to, for adjusting, the engagement inputted between little wheel and rack
Gap, and make to turn to the back lash inputted between little wheel and rack to be maintained at optimum state.This motor turning
Device clearance adjustment mechanism overall structure includes housing, rolled portion and elastic adjustment portion.What rolled portion rolled sets
Put in the housing of tooth bar side, coordinate with the rolling of tooth bar to be formed when tooth bar moves, elastic adjustment portion
It is formed in housing, and is configured to the elastic pushing tow to rolled portion, so that rolled portion keeps contacting with tooth bar.
Form what rolling coordinated with tooth bar when this automobile steering device clearance adjustment mechanism moves by being arranged on tooth bar
Rolled portion, and rolled portion is carried out elastic pushing tow, and make rolled portion keep the elastic adjustment contacted with tooth bar
Portion, after can wearing and tearing turning to the site of engagement inputted between little wheel and rack, the gap that abrasion is formed
It is adjusted compensating, to ensure the positive engagement of tooth bar and little gear.And by using rolled portion to make tooth bar
And form rolling friction between rolled portion, the frictional resistance between tooth bar and rolled portion can be reduced, thus tooth can be reduced
Bar and the wear extent of rolled portion, extend its service life.
Based on design as above thought, the one of the automobile steering device clearance adjustment mechanism of the present embodiment is exemplary
As depicted in figs. 1 and 2, the side of its middle rack 2 inputs little gear 1 by tooth thereon with turning to structure
Being meshed, the opposite side at tooth bar 2 is provided with clearance adjustment mechanism 3, is realized by clearance adjustment mechanism 3
To tooth bar 2 with turn to and input the adjustment of back lash between little gear 1.In the present embodiment as in figure 2 it is shown,
Tooth bar 2 is formed the depressed part 21 of the length direction layout along tooth bar 2, aforesaid clearance adjustment mechanism
Rolled portion 32 in 3 is i.e. partially submerged in this depressed part 21, and realizes the abutting with tooth bar 2, in depression
Portion 21 is also equipped with oil storage tank 23, can increase the lubricating ability between rolled portion 32 and tooth bar 2.
, clearance adjustment mechanism includes housing 31 in the present embodiment as shown in Figure 3, in one end of housing 31
It is formed for the cavity turning to the little gear 1 of input and tooth bar 2 to insert, is additionally provided with above-mentioned in housing 31
Cavity is connected and runs through the through hole of housing 31 other end end, aforesaid rolled portion 32 and elasticity
Adjustment portion 33 is i.e. arranged in this through hole.The depressed part 21 being formed in the present embodiment on tooth bar 2 transversal
Face is set to arc, and corresponding rolled portion 32 also adapts to depressed part 21 and arc in middle part evagination.This
Outward, the depressed part 21 arrangement length on tooth bar 2 in the present embodiment, also equal with the movable length of tooth bar 2,
And also it is respectively formed with in smoothing junction in the bottom of depressed part 21 and tooth bar 2 at the two ends of depressed part 21
Curved surface 22 between outer surface.
Certainly, except making the length of depressed part 21 be equal to the movable length of tooth bar 2, it is possible to make depressed part
The length of 21 is more than the movable length of tooth bar 2 more than the movable length of tooth bar 2, the length at depressed part 21
Time, it may not be necessary to curved surface 22 as above is set at the two ends of depressed part 21.In the present embodiment recessed except making
Fall into portion 21 and rolled portion 32 is suitable arcuate structure, and as shown in Figure 4, in the horizontal stroke of depressed part 21
On cross section, the middle part along its width of depressed part 21 is also recessed to the inner side of tooth bar 2, so that
Depressed part 21 and the rolled portion 32 structure in two-point contact.Depressed part 21 and the two-point contact of rolled portion 32,
The automatic aligning of rolled portion 32 can be easy to, and rolled portion 32 can be made to be in more with contacting of depressed part 21
Smoothly under state.
The present embodiment Elastic adjustment portion 33 specifically includes the adjustment seat being bolted in via openings end in housing 31
331, it is provided with elastic component 335 adjusting to abut on seat 331, relative to adjusting seat 331, at elastic component 335
Opposite side be additionally provided with adjustment block 332, rolled portion 32 i.e. connects with adjustment block 332, thus can be in elasticity
The elasticity of part 335 is ordered about down and rolled portion 32 is pressed in the depressed part 21 on tooth bar 2.And by adjusting
The whole adjustment seat 331 distance that is spirally connected in housing 31, it is possible to adjust elastic component 335 and put on adjustment block 332
On the size of elastic acting force, to ensure that rolled portion 32 is on tooth bar 2 under the effect of elastic component 335
Reliably compress.
In the present embodiment, the structure of adjustment block is as shown in Figure 5 and Figure 6, in adjustment block 332 and rolled portion 32
Being formed with containing cavity 333 on the side end face connected, rolled portion 32 i.e. rolls and is placed in this containing cavity 333,
So that stable being arranged between tooth bar 2 and adjustment block 332 of rolled portion 32 can be made.And for making rolled portion 32 exist
Rolling in containing cavity 333 is the most steady, and in the present embodiment, the top at containing cavity 333 is also equipped with adaptation
Arcwall face 334 in rolled portion 32 appearance.Additionally, in being formed with containing cavity 333 in adjustment block 332
One end is additionally provided with the mounting groove that positioned opposite two are " U "-shaped, and as shown in Figures 7 and 8,
Also be respectively arranged with insertion axle 321 at the two ends of rolled portion 32, rolled portion 32 is i.e. existed by insertion axle 321
Rotation in mounting groove arranges and is connected in adjustment block 332.
For reducing the vibrating noise that rolled portion 32 produces when rolling in the present embodiment, on insertion axle 321 also
It is arranged with the first elastic ring 41, and during for avoiding adjustment block 332 to slide within the case 1, produces friction noise,
Also being arranged with the second elastic ring 42 on the periphery wall of adjustment block 332, the first elastic ring 41 and second is elastic
Circle uses rubber o-ring.The automobile steering device clearance adjustment mechanism of the present embodiment in use, passes through
Regulation adjusts seat 331, rolled portion 32 can be made to press on tooth bar 2 under the effect of elastic component 335, from
And ensure tooth bar 2 and turn to the engagement effect inputted between little gear 1.
When tooth bar 2 moves, as shown in Figure 9, when tooth bar 2 moves to extreme position, because of depressed part 21
Length identical with the length that tooth bar 2 moves, thus rolled portion 32 can be with the curved surface 22 of depressed part 21 end
Contact, because of the construction features of curved surface 22, can make rolled portion 32 produce the displacement to elastic component 335 side,
Now elastic component 335 is because being applied bigger active force to rolled portion 32 by compression, and this active force puts on
In rolled portion 32, thus can make the rolled portion braking in depressed part 21 end more steadily effectively.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (10)
1. an automobile steering device clearance adjustment mechanism, adapts to have intermeshing turning to and inputs little gear
(1) and in the steering gear of tooth bar (2), it is characterised in that including:
Housing (31)；
Rolled portion (32), in the housing (31) being arranged on described tooth bar (2) side of rolling, with in institute
State to be formed when tooth bar (2) moves and coordinate with the rolling of described tooth bar (2)；
Elastic adjustment portion (33), is formed in described housing (31), and is configured to described rolled portion (32)
Elastic pushing tow so that described rolled portion (32) and described tooth bar (2) keep contacting.
Automobile steering device clearance adjustment mechanism the most according to claim 1, it is characterised in that: in described
Be formed on tooth bar (2) outer surface along described tooth bar (2) length direction arrange, be available for described rolled portion
(32) depressed part (21) being partially submerged into.
Automobile steering device clearance adjustment mechanism the most according to claim 2, it is characterised in that: described recessed
Fall into the length length equal to described tooth bar (2) movement in portion (21), and in the two of described depressed part (21)
End is respectively formed with the smooth song being connected between described depressed part (21) bottom and described tooth bar (2) outer surface
Face (22).
Automobile steering device clearance adjustment mechanism the most according to claim 2, it is characterised in that: described recessed
The cross section falling into portion (21) is arc, and the outer surface of described rolled portion (32) is and described depressed part (21)
Suitable arc.
Automobile steering device clearance adjustment mechanism the most according to claim 4, it is characterised in that: in described
On depressed part (21) cross section, because of described depressed part (21) middle part to described tooth bar (2) inner side recessed,
And and two-point contact between described rolled portion (32).
Automobile steering device clearance adjustment mechanism the most according to claim 2, it is characterised in that: described
Oil storage tank (23) it is provided with in depressed part (21).
Automobile steering device clearance adjustment mechanism the most according to any one of claim 1 to 6, its feature
It is: described elastic adjustment portion (33) includes the adjustment seat (331) being bolted in described housing (31),
And installing the elastic component (335) on described adjustment seat (331), described elastic component (335) is via tune
Monoblock (332) applies elastic top thrust to described rolled portion (32), in described adjustment block (332) bottom
It is formed with the containing cavity (333) of accommodating described rolled portion (32).
Automobile steering device clearance adjustment mechanism the most according to claim 7, it is characterised in that: described appearance
Put chamber (333) top and there is the arcwall face (334) adapting to described rolled portion (32) outer surface.
Automobile steering device clearance adjustment mechanism the most according to claim 8, it is characterised in that: in described
Rolled portion (32) is respectively arranged at two ends with the insertion axle (321) inserted in described adjustment block (332), in described
Insert and be folded with elastic ring between axle (321) and described adjustment block (332).
Automobile steering device clearance adjustment mechanism the most according to claim 7, it is characterised in that: in institute
State and be folded with elastic ring between adjustment block (332) and described housing (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496989.4U CN205780719U (en) | 2016-05-27 | 2016-05-27 | Automobile steering device clearance adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620496989.4U CN205780719U (en) | 2016-05-27 | 2016-05-27 | Automobile steering device clearance adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205780719U true CN205780719U (en) | 2016-12-07 |
Family
ID=57408203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620496989.4U Active CN205780719U (en) | 2016-05-27 | 2016-05-27 | Automobile steering device clearance adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205780719U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741128A (en) * | 2017-01-04 | 2017-05-31 | 北京长安汽车工程技术研究有限责任公司 | A kind of steering gear Mesh Clearance Adjustment device |
| CN110000259A (en) * | 2019-04-30 | 2019-07-12 | 道尔顿(张家港)工业自动化设备有限公司 | A kind of Full-automatic tube bending machine bend pipe structure |
| CN114060485A (en) * | 2021-11-08 | 2022-02-18 | 中汽创智科技有限公司 | Clearance adjusting device and rack and pinion steering gear |
| CN115556816A (en) * | 2022-10-31 | 2023-01-03 | 东风汽车股份有限公司 | Automatic steering engine clearance adjusting device and automobile |
-
2016
- 2016-05-27 CN CN201620496989.4U patent/CN205780719U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741128A (en) * | 2017-01-04 | 2017-05-31 | 北京长安汽车工程技术研究有限责任公司 | A kind of steering gear Mesh Clearance Adjustment device |
| CN110000259A (en) * | 2019-04-30 | 2019-07-12 | 道尔顿(张家港)工业自动化设备有限公司 | A kind of Full-automatic tube bending machine bend pipe structure |
| CN114060485A (en) * | 2021-11-08 | 2022-02-18 | 中汽创智科技有限公司 | Clearance adjusting device and rack and pinion steering gear |
| CN115556816A (en) * | 2022-10-31 | 2023-01-03 | 东风汽车股份有限公司 | Automatic steering engine clearance adjusting device and automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |