CN109436084A - A kind of automobile gear rack gear backlash of steering gear adjustment mechanism - Google Patents
A kind of automobile gear rack gear backlash of steering gear adjustment mechanism Download PDFInfo
- Publication number
- CN109436084A CN109436084A CN201811481808.0A CN201811481808A CN109436084A CN 109436084 A CN109436084 A CN 109436084A CN 201811481808 A CN201811481808 A CN 201811481808A CN 109436084 A CN109436084 A CN 109436084A
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- CN
- China
- Prior art keywords
- gear
- rack gear
- adjustment
- arc
- adjusting body
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
- B62D3/12—Steering gears mechanical of rack-and-pinion type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/26—Racks
- F16H55/28—Special devices for taking up backlash
- F16H55/283—Special devices for taking up backlash using pressure yokes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gears, Cams (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of automobile gear rack gear backlash of steering gear adjustment mechanisms, including the shell with orthogonal first shaft hole and the second axis hole, the gear set being made of rack and pinion is equipped in first shaft hole, adjusting body is equipped in second axis hole, the adjusting body front end is abutted with the back of rack gear, rear end is equipped with slot, conical helical spring is successively arranged in slot, adjustment bolt and locking nut, the adjustment bolt is set in conical helical spring, and it is threadedly coupled with shell and locking nut, it is pressed on conical helical spring in adjusting body slot, conical helical spring in impaction state releases stress, and then adjust gear, the inter-lobe clearance of rack gear, the configuration of the present invention is simple, manufacturing cost is low, it is quick and easy for installation, it is compact-sized, tuning performance is good, the back lash of steering assembly can be effectively reduced , optimize the performances such as gap, noise, the vibration of rack and pinion steering gear.
Description
Technical field
The present invention relates to a kind of automobile gear rack gear backlash of steering gear adjustment mechanisms, belong to Automotive Steering Technology field.
Background technique
Rack pinion steering system is a kind of steering mechanism that car, jubilee wagen generally use comprising is mounted on gold
Belong to the rack-gear type gear set in pipe, each increment of rack gear all protrusions connect together outside metal tube, and with drag link.One
Pinion gear is connected in steering shaft, and when rotation vehicle steering wheel, the rotation of diverter gear makes the rack gear being engaged with axially
It is mobile.On the steering arm of the drag link steering shaft of each increment of rack gear, steering wheel rotary motion is converted to by wheel by rack gear
Be driven required for linear movement, thus make left and right drag link drive knuckle left-right rotation, make steered wheel realize deflection and
Realize motor turning.
The position sense in the middle position of rack and pinion steering gear assembly is one of key property of manoeuvereability of automobile, while noise
Performance is also the key property of automobile steering system, if the gap of diverter is excessive, between the steering wheel that will lead to automobile
Gap becomes larger, and leads to the problem of looseness and abnormal sound；, whereas if the gap of diverter is smaller, and it is forward and inverse to will lead to steering assembly
Torque becomes larger, and the operating torque of automobile can be made to become larger, and causes its aligning torque to become larger and is deteriorated with return performance, influences automobile
Maneuvering performance.The gap of existing rack and pinion steering gear adjust and compensation system by adjusting body, adjustment spring, adjustment plug screw,
The spare parts such as locking nut composition, it is mainly responsible for the adjustment of backlash of steering gear.Because gap occurs in abrasion between wheel and rack
Afterwards, it is applied to adjustment pressing force of the spring using mounted in rack gear back, the adjustment plug screw at driver pinion, can eliminated automatically
Inter-lobe clearance, the rigidity of steering system not only can be improved in this, can also prevent from generating impact and noise when work.But it is existing
Some gap adjustment are poor with compensation system stability, and comfort is low, and can only guarantee the normal back lash at automobilism initial stage,
After a period of time, modulated overall wear amount, the performance for adjusting spring etc. influence, and adjustment effect is poor, leads to back lash mistake
Greatly, automobile steering system generates the problems such as looseness, abnormal sound, poor return performance.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of this automobile gear rack gear backlash of steering gear adjustment mechanisms, can
With overcome the deficiencies in the prior art.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions: a kind of automobile gear rack gear
Backlash of steering gear adjustment mechanism is equipped in first shaft hole including the shell with orthogonal first shaft hole and the second axis hole
The gear set being made of rack and pinion, is equipped with adjusting body in the second axis hole, and the adjusting body front end is equipped with and mutually fits with rack gear
The arcuate structure matched, the arcuate structure are abutted with the back of rack gear, and rear end is equipped with slot, are successively arranged trochoid spiral in slot
Spring, adjustment bolt and locking nut；The end of the adjustment bolt is equipped with external screw thread, sets on the second axis hole and locking nut
There is the internal screw thread to match, the adjustment bolt is set in conical helical spring, and is connected with shell and locking nut screw thread
It connects, is pressed on conical helical spring in adjusting body slot.
At least provided with an annular groove on the rear end surface and external peripheral surface of aforementioned adjusting body, annular groove is interior equipped with O-shaped
Rubber ring.
1~2 O rubber-type circle is equipped in the rear end surface of aforementioned adjusting body；On the external peripheral surface of the adjusting body
Equipped with 1~3 O rubber-type circle.
The material of said o rubber ring is NR or BR or NBR or HNBR rubber material.
Compatible arc adjustment liner is equipped between the arcuate structure of aforementioned adjusting body front end and the back of rack gear.
Opened up in the middle part of the arcuate structure of aforementioned adjusting body front end it is jagged, arc adjustment liner middle part be equipped with it is matching
Protrusion, arc adjustment liner snapped by its protrusion on the arcuate structure of adjusting body front end.
Aforementioned arc adjustment liner is concentric design relative to the arcuate structure of adjusting body, and is eccentric knot relative to rack gear
Structure design.
Aforementioned arc adjustment pads two sections of arc panels both with respect to rack gear bias of the design that is structure as a whole, and two arcs
Shape plate is symmetrical arranged with respect to its middle part protrusion.
The radius of two sections of arc panels of aforementioned arc adjustment liner is R, and the diameter of rack gear is D, the circle of two sections of arc panels
The heart to the center of circle of rack gear deviation away from for 0~3mm；The value of the radius R of two sections of arc panels is with R/D=50%~65% design；Two sections of arcs
The thickness value of shape plate is 0.5~5mm.
Aforementioned arc adjustment liner is PTFE material.
Compared with the prior art, the invention discloses a kind of automobile gear rack gear backlash of steering gear adjustment mechanism, packets
Shell is included, it is interior to be equipped with the gear set being made of rack and pinion, it is equipped at the back of rack gear by adjusting body, trochoid spiral bullet
The adjustment mechanism of spring, adjustment bolt and locking nut composition, the arcuate structure of adjusting body front end is connected to rack gear back when installation,
Conical helical spring is placed in the slot of rear end, and is matched by adjusting the threaded connection between bolt, locking nut and shell three
Conjunction is pressed in the slot of adjusting body rear end, when the inter-lobe clearance of gear, rack gear is excessive, the trochoid spiral bullet in impaction state
Spring releases stress, and then adjusts the inter-lobe clearance of gear, rack gear.
The configuration of the present invention is simple, manufacturing cost is low, quick and easy for installation, compact-sized, and tuning performance is good, with following
Advantage:
(1) replace cylindrical spring common in the prior art that can hold with good cushion performance using conical helical spring
By compared with big load, deformation range is wider, and adjusting accuracy is high, between the engagement that can not only significantly reduce steering assembly
Gap reduces the between cog abrasion of rack-and-pinion, improves the service life of steering assembly, and for the inter-lobe clearance of rack-and-pinion
It can also complete to adjust when larger, adjusting range is wide；In addition, would be even more beneficial to avoid adjusting body and adjust by conical helical spring
The collision of whole plug screw, it is more advantageous for eliminating or mitigating resonance, and then the stability of diverter is improved, reduce diverter noise.
(2) it on the rear end surface and external peripheral surface of the adjusting body at least provided with an annular groove, is set in annular groove
There is O-shaped rubber ring, not only reduces adjusting body abrasion, eliminate noise, and improve the guiding stationarity of the adjustment mechanism.
(3) compatible arc adjustment lining is equipped between the arcuate structure of the adjusting body front end and the back of rack gear
Pad, the arc adjustment liner is PTFE material, preferably improves noise resistance effect, reduces the mill between adjusting body and rack gear
Damage；Also, arc adjustment pads opposite rack gear and designs for eccentric structure, so that rack gear is adjusted cushion fit with arc and is more close to,
So that its adjustment effect is more preferable, the back lash of steering assembly is significantly reduced, rack and pinion steering gear is optimized
The performances such as gap, noise, vibration.
Detailed description of the invention
Fig. 1 the structural representation of present invention.
Fig. 2 is conical helical spring structural schematic diagram in Fig. 1.
Fig. 3 is the stiffness curve figure of conical helical spring in Fig. 2.
Fig. 4 is the partial enlargement diagram of part A in Fig. 1.
Fig. 5 is the sizing structural schematic diagram of Fig. 4.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description:
As shown in Figure 1, a kind of automobile gear rack gear backlash of steering gear adjustment mechanism, including shell 1, shell 1 is interior to be equipped with mutually
Vertical first shaft hole 101 and the second axis hole 102 is equipped with the gear set being made of rack gear 2 and gear 3 in first shaft hole 101,
It is equipped in the second axis hole 102 and is equipped with arcuate structure 401 compatible with rack gear 2, institute with adjusting body 4,4 front end of adjusting body
It states arcuate structure 401 to abut with the back of rack gear 2, rear end is equipped with slot 402, is successively arranged conical helical spring in slot 402
6, adjustment bolt 5 and locking nut 7；The end of the adjustment bolt 5 is equipped with external screw thread, the second axis hole 102 and locking nut 7
It is equipped with the internal screw thread that matches, when installation, conical helical spring 6 is placed in the slot 402 of adjusting body, trochoid spiral is made
Spring 6 is socketed in adjustment bolt 5, and is threadedly coupled adjustment bolt 5 with shell and locking nut, adjusts adjustment bolt 5
Afterwards, it is pressed on conical helical spring 6 in adjusting body slot 402.
As shown in Figures 2 and 3, the rigid kF of the conical helical spring 6 is variate, and rigidity can be gradually increased, so adjusting
The rigidity characteristic line of whole spring is no longer just straight line, and becomes the increasing curve of slope, is had good
Cushion performance, can bear compared with big load, deformation range is wider, is applicable to the biggish feelings of inter-lobe clearance of rack gear 2 and gear 3
Condition.
As shown in figure 4, at least provided with an annular groove, ring on the rear end surface and external peripheral surface of the adjusting body 4
O-shaped rubber ring is equipped in shape slot, it is preferable that offer 1~2 annular groove in the rear end surface of the adjusting body 4, interior installation
There is No.1 O rubber-type circle 8；1~3 annular groove is offered on the external peripheral surface of the adjusting body 4, is mounted therein with No. two
O rubber-type circle 9；The material of the No.1 O rubber-type circle 8 and No. two O rubber-type circles 9 is NR or BR or NBR or HNBR rubber material
Material.
As shown in Figure 4 and Figure 5, it is equipped between the arcuate structure 401 of the adjusting body and the back of rack gear 2 compatible
Arc adjustment liner 10, the arc adjustment liner 10 are concentric design relative to the arcuate structure 401 of adjusting body, and relative to
Rack gear 2 designs for eccentric structure, specifically, jagged, arc adjustment lining is opened up in the middle part of the arcuate structure 401 of the adjusting body
Matching protrusion is equipped in the middle part of pad 10, arc adjustment liner 10 snaps onto the arcuate structure of adjusting body front end by its protrusion
On 401, it is bonded the arcuate structure 401 of adjustment 10 external arcs of liner and adjusting body completely；The arc adjustment liner 10 is one
The arc panel eccentric both with respect to rack gear 2 of two sections of body structure design, and two arc panels are symmetrical arranged with respect to its middle part protrusion,
Away from for b, b's is set for the deviation in the center of circle of the center of circle of two sections of symmetrically arranged arc panels of arc adjustment liner 10 to rack gear 2
Evaluation is 0~3mm；The radius of two sections of arc panels of the arc adjustment liner 10 is R, and the diameter of rack gear is D, and R/D's sets
Evaluation is 50%~65%；The design value of 10 thickness t of the arc adjustment liner is 0.5~5mm.
The eccentric structure design of the arc adjustment liner 10 makes rack gear 2 adjust 10 cooperation of liner with arc and is more close to,
Also the abrasion in use process is reduced；The arc adjustment liner 10 is PTFE material, improves noise resistance effect.
Claims (10)
1. a kind of automobile gear rack gear backlash of steering gear adjustment mechanism, including with orthogonal first shaft hole (101) and
The shell (1) of two axis holes (102), (101) are equipped with the gear set being made of rack gear (2) and gear (3) in first shaft hole, special
Sign is: being equipped with adjusting body (4) in the second axis hole (102), adjusting body (4) front end is equipped with compatible with rack gear (2)
Arcuate structure (401), the arcuate structure (401) abut with the back of rack gear (2), and rear end is equipped with slot (402), slot
(402) conical helical spring (6), adjustment bolt (5) and locking nut (7) are successively arranged in；The end of the adjustment bolt (5)
It is equipped with external screw thread, the second axis hole (102) and locking nut (7) are equipped with the internal screw thread to match, and the adjustment bolt (5) is worn
It covers in conical helical spring (6), and is threadedly coupled with shell (1) and locking nut (7), press conical helical spring (6)
Tightly in adjusting body slot (402).
2. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 1, it is characterised in that: the adjustment
At least provided with an annular groove on the rear end surface and external peripheral surface of body (4), annular groove is interior to be equipped with O-shaped rubber ring.
3. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 2, it is characterised in that: in the tune
The rear end surface of whole (4) is equipped with 1~2 O rubber-type circle；1~3 O is equipped on the external peripheral surface of the adjusting body (4)
Rubber-type circle.
4. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 3, it is characterised in that: described O-shaped
The material of rubber ring is NR or BR or NBR or HNBR rubber material.
5. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 1, it is characterised in that: in the tune
Compatible arc adjustment liner (10) is equipped between the arcuate structure (401) of whole front end and the back of rack gear (2).
6. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 5, it is characterised in that: in the tune
It opens up jagged in the middle part of the arcuate structure (401) of whole front end, matching protrusion is equipped in the middle part of arc adjustment liner (10),
Arc adjustment liner (10) is snapped on the arcuate structure (401) of adjusting body front end by its protrusion.
7. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 6, it is characterised in that: the arc
Adjustment liner (10) is concentric design relative to the arcuate structure (401) of adjusting body, and is set relative to rack gear (2) for eccentric structure
Meter.
8. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 7, it is characterised in that: the arc
Adjustment liner (10) is structure as a whole two sections of arc panels both with respect to rack gear (2) bias of design, and two arc panels are opposite
Its middle part protrusion is symmetrical arranged.
9. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 8, it is characterised in that: the arc
The radius of two sections of arc panels of adjustment liner (10) is R, and the diameter of rack gear is D, the center of circle of two sections of arc panels to rack gear (2)
The deviation in the center of circle is away from for 0~3mm；The value of the radius R of two sections of arc panels is with R/D=50%~65% design；The thickness of two sections of arc panels
Value is 0.5~5mm.
10. automobile gear rack gear backlash of steering gear adjustment mechanism according to claim 9, it is characterised in that: the arc
Shape adjustment liner (10) is PTFE material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481808.0A CN109436084A (en) | 2018-12-05 | 2018-12-05 | A kind of automobile gear rack gear backlash of steering gear adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811481808.0A CN109436084A (en) | 2018-12-05 | 2018-12-05 | A kind of automobile gear rack gear backlash of steering gear adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109436084A true CN109436084A (en) | 2019-03-08 |
Family
ID=65557702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811481808.0A Pending CN109436084A (en) | 2018-12-05 | 2018-12-05 | A kind of automobile gear rack gear backlash of steering gear adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109436084A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110562320A (en) * | 2019-10-22 | 2019-12-13 | 杭州精是智能科技有限公司 | steering gear for stably controlling driving direction of automobile after tire burst |
| CN112298339A (en) * | 2019-07-30 | 2021-02-02 | 株式会社万都 | Steering engine rack clearance compensation mechanism, steering engine and vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990028481U (en) * | 1997-12-26 | 1999-07-15 | 양재신 | Steering Gear Structure for Vehicle Noise Reduction |
| CN201739467U (en) * | 2010-06-30 | 2011-02-09 | 富奥汽车零部件股份有限公司 | Mechanism for adjusting engaging clearance between gear and a rack of steering gear |
| CN103832465A (en) * | 2012-11-27 | 2014-06-04 | 重庆长安汽车股份有限公司 | Abnormal sound prevention structure of automobile mechanical steering gear |
| CN203946158U (en) * | 2014-07-02 | 2014-11-19 | 豫北转向系统股份有限公司 | A kind of automobile steering device is adjusted the structure of body |
| CN107215384A (en) * | 2016-03-22 | 2017-09-29 | 福特环球技术公司 | Vehicle steering mechanism |
| CN209208851U (en) * | 2018-12-05 | 2019-08-06 | 贵州长江汽车有限公司 | A kind of automobile gear rack gear backlash of steering gear adjustment mechanism |
-
2018
- 2018-12-05 CN CN201811481808.0A patent/CN109436084A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990028481U (en) * | 1997-12-26 | 1999-07-15 | 양재신 | Steering Gear Structure for Vehicle Noise Reduction |
| CN201739467U (en) * | 2010-06-30 | 2011-02-09 | 富奥汽车零部件股份有限公司 | Mechanism for adjusting engaging clearance between gear and a rack of steering gear |
| CN103832465A (en) * | 2012-11-27 | 2014-06-04 | 重庆长安汽车股份有限公司 | Abnormal sound prevention structure of automobile mechanical steering gear |
| CN203946158U (en) * | 2014-07-02 | 2014-11-19 | 豫北转向系统股份有限公司 | A kind of automobile steering device is adjusted the structure of body |
| CN107215384A (en) * | 2016-03-22 | 2017-09-29 | 福特环球技术公司 | Vehicle steering mechanism |
| CN209208851U (en) * | 2018-12-05 | 2019-08-06 | 贵州长江汽车有限公司 | A kind of automobile gear rack gear backlash of steering gear adjustment mechanism |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112298339A (en) * | 2019-07-30 | 2021-02-02 | 株式会社万都 | Steering engine rack clearance compensation mechanism, steering engine and vehicle |
| CN110562320A (en) * | 2019-10-22 | 2019-12-13 | 杭州精是智能科技有限公司 | steering gear for stably controlling driving direction of automobile after tire burst |
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