CN116972157A - Steering gear rack and pinion clearance adjustment mechanism - Google Patents

Steering gear rack and pinion clearance adjustment mechanism Download PDF

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Publication number
CN116972157A
CN116972157A CN202310950934.0A CN202310950934A CN116972157A CN 116972157 A CN116972157 A CN 116972157A CN 202310950934 A CN202310950934 A CN 202310950934A CN 116972157 A CN116972157 A CN 116972157A
Authority
CN
China
Prior art keywords
steering gear
pressing block
embedded
screw plug
groove
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.)
Pending
Application number
CN202310950934.0A
Other languages
Chinese (zh)
Inventor
唐学东
汪朋
任宇辉
罗世成
姚学森
李海亮
胡杰
迟玉华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jianghuai Automobile Group Corp
Original Assignee
Anhui Jianghuai Automobile Group Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Anhui Jianghuai Automobile Group Corp filed Critical Anhui Jianghuai Automobile Group Corp
Priority to CN202310950934.0A priority Critical patent/CN116972157A/en
Publication of CN116972157A publication Critical patent/CN116972157A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D3/00Steering gears
    • B62D3/02Steering gears mechanical
    • B62D3/12Steering gears mechanical of rack-and-pinion type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D3/00Steering gears
    • B62D3/02Steering gears mechanical
    • B62D3/12Steering gears mechanical of rack-and-pinion type
    • B62D3/123Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D3/00Steering gears
    • B62D3/02Steering gears mechanical
    • B62D3/12Steering gears mechanical of rack-and-pinion type
    • B62D3/126Steering gears mechanical of rack-and-pinion type characterised by the rack
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H19/00Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • F16H19/043Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack for converting reciprocating movement in a continuous rotary movement or vice versa, e.g. by opposite racks engaging intermittently for a part of the stroke
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/0006Vibration-damping or noise reducing means specially adapted for gearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/12Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H57/12Arrangements for adjusting or for taking-up backlash not provided for elsewhere
    • F16H2057/126Self-adjusting during operation, e.g. by a spring
    • F16H2057/127Self-adjusting during operation, e.g. by a spring using springs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Dampers (AREA)

Abstract

The invention belongs to the technical field of automobiles, and discloses a gear-rack gap adjusting mechanism of a steering gear, which comprises a pressing block, a spiral spring and an adjusting screw plug, wherein the pressing block is arranged in a steering gear shell in a sliding manner, one end of the pressing block is abutted against a rack, a first rubber ring and a second rubber ring are embedded in the side wall of the pressing block, the first rubber ring and the second rubber ring are in interference fit with the inner wall of the steering gear shell, a buffer pad is embedded in one end of the pressing block, which is opposite to the rack, one end of the spiral spring is abutted against the pressing block, the position of the adjusting screw plug is adjustably arranged in the steering gear shell, one end of the adjusting screw plug is abutted against one end of the spiral spring, which is opposite to the pressing block, and one end of the adjusting screw plug, which is abutted against the spiral spring, is abutted against the buffer pad. The steering gear rack gap adjusting mechanism can relieve collision noise between the steering gear shells generated by radial swing of the pressing blocks, and can effectively buffer impact of the pressing blocks on the adjusting screw plugs.

Description

Steering gear rack and pinion clearance adjustment mechanism
Technical Field
The invention relates to the technical field of automobiles, in particular to a steering gear rack clearance adjusting mechanism.
Background
As technology advances and environmental protection pressure increases, electric power steering systems become the standard for automobiles. The electric power steering system not only can provide good operation comfort, but also can avoid the problem of oil pollution in the maintenance process of the hydraulic power steering system. However, since the electric power steering system is mechanically driven, there is inevitably mechanical wear between the components, thereby generating driving or impact noise. In an electric power steering system, the rack and pinion engagement point is one of the sources of noise. Because the force transmitted by the gear and the rack is larger, the gear and the rack inevitably have tooth surface abrasion, the meshing clearance at the meshing position of the gear and the rack is enlarged after the tooth surface abrasion, and meanwhile, when the rack generates larger impact on the pressing block during working, the pressing block collides with the adjusting screw plug and the steering gear shell to generate noise.
The gear-rack press block gap noise reduction structure commonly adopted in the existing steering system applies acting force to the steering gear press block through a spiral spring, the press block pushes the rack, the rack and the pinion are always contacted, gap compensation is achieved, and impact noise is relieved. However, in the existing steering system, a single rubber O-shaped rubber ring is adopted at the contact surface of the pressing block and the steering gear shell to reduce impact noise, and noise generated by the pressing block and the steering gear shell due to radial swing in the sliding process cannot be effectively reduced.
Accordingly, there is a need for a steering gear rack and pinion lash adjustment mechanism that addresses the above-described issues.
Disclosure of Invention
The invention aims to provide a steering gear rack gap adjusting mechanism which can relieve collision noise between the steering gear and a steering gear shell caused by radial swing of a pressing block and can effectively buffer impact of the pressing block on an adjusting screw plug.
To achieve the purpose, the invention adopts the following technical scheme:
a steering gear rack and pinion gap adjustment mechanism comprising:
the pressing block is arranged in the steering gear shell in a sliding manner, one end of the pressing block is abutted to the rack, a first rubber ring and a second rubber ring are embedded in the side wall of the pressing block, the first rubber ring and the second rubber ring are in interference fit with the inner wall of the steering gear shell, and a buffer pad is embedded in one end, deviating from the rack, of the pressing block;
one end of the spiral spring is abutted with the pressing block;
the adjusting screw plug is arranged in the steering gear shell in a position-adjustable mode, one end of the adjusting screw plug is abutted to one end, away from the pressing block, of the spiral spring, and one end, abutted to the spiral spring, of the adjusting screw plug is abutted to the cushion pad.
Optionally, a first annular groove and a second annular groove are formed in the side wall of the pressing block, a part of the first rubber ring is embedded in the first annular groove, and a part of the second rubber ring is embedded in the second annular groove.
Optionally, the first ring groove and the second ring groove are formed along the circumferential direction of the pressing block.
Optionally, a third annular groove is formed at one end of the pressing block, which is close to the adjusting screw plug, a fourth annular groove aligned with the third annular groove is formed at the adjusting screw plug, one end of the buffer pad is embedded into the third annular groove, and the other end of the buffer pad is embedded into the fourth annular groove.
Optionally, the shape of the cushion pad is in an annular cylinder shape matched with the third annular groove.
Optionally, a first spring groove is formed at one end of the pressing block, which is close to the adjusting screw plug, a second spring groove aligned with the first spring groove is formed at the adjusting screw plug, one end of the spiral spring is embedded into the first spring groove, and the other end of the spiral spring is embedded into the second spring groove.
Optionally, the first spring groove is formed along an axis of the pressing block.
Optionally, the pressing block is provided with a first through hole communicated with the first spring groove, the adjusting screw plug is provided with a second through hole communicated with the second spring groove, and the second through hole is embedded with a rubber plug.
Optionally, an external thread is provided on the outer wall of the adjusting screw plug, and an internal thread in threaded engagement with the external thread is provided on the steering gear housing.
Optionally, the external thread is in threaded connection with a lock nut, and the lock nut abuts against the steering gear housing.
The invention has the beneficial effects that:
according to the steering gear rack gap adjusting mechanism, the first rubber ring and the second rubber ring are embedded in the side wall of the pressing block, and are in interference fit with the inner wall of the steering gear shell, so that impact collision between the pressing block and the steering gear shell can be buffered when the pressing block is impacted by a rack, and collision noise between the pressing block and the steering gear shell, which is generated by radial swing of the pressing block, is relieved; the buffer cushion is embedded at one end, deviating from the rack, of the pressing block and is abutted with the adjusting screw plug, and impact of the pressing block on the adjusting screw plug can be effectively buffered.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the description of the embodiments of the present invention, and it should be apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to the contents of the embodiments of the present invention and these drawings without inventive effort for those skilled in the art.
FIG. 1 is a schematic diagram of a steering gear rack and pinion gap adjustment mechanism provided by the present invention;
FIG. 2 is a schematic view of the structure of the briquette according to the present invention;
FIG. 3 is a schematic view of the structure of the adjusting screw plug of the present invention;
FIG. 4 is a schematic view of the structure of the first rubber ring according to the present invention;
FIG. 5 is a schematic view of a second rubber ring according to the present invention;
FIG. 6 is a schematic view of the structure of the cushion of the present invention.
In the figure:
10. a steering gear housing; 20. a rack; 30. a gear;
100. briquetting; 110. a first rubber ring; 120. the second rubber ring; 130. a cushion pad; 140. a first ring groove; 150. a second ring groove; 160. a third ring groove; 170. a first spring groove; 180. a first through hole; 200. a coil spring; 300. adjusting a screw plug; 310. a fourth ring groove; 320. a second spring groove; 330. a second through hole; 340. a rubber plug; 350. and (5) locking the nut.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
As shown in fig. 1 to 6, the present invention provides a steering gear rack and pinion gap adjustment mechanism including a pressing block 100, a coil spring 200, and an adjustment screw 300.
Wherein, briquetting 100 slides and sets up in steering gear casing 10, briquetting 100's one end and rack 20 butt, briquetting 100's lateral wall inlays and is equipped with first rubber ring 110 and second rubber ring 120, first rubber ring 110 and second rubber ring 120 and steering gear casing 10's inner wall interference fit, briquetting 100 is inlayed and is equipped with blotter 130 to the one end that deviates from rack 20, coil spring 200's one end and briquetting 100 butt, adjustment plug 300 position-adjustable sets up in steering gear casing 10, adjustment plug 300's one end and coil spring 200 deviate from briquetting 100's one end butt, and adjustment plug 300 and coil spring 200's one end and blotter 130 butt.
According to the steering gear rack gap adjusting mechanism provided by the invention, the first rubber ring 110 and the second rubber ring 120 are embedded in the side wall of the pressing block 100, the first rubber ring 110 and the second rubber ring 120 are in interference fit with the inner wall of the steering gear shell 10, and when the pressing block 100 is impacted by the rack 20, impact collision between the pressing block 100 and the steering gear shell 10 can be buffered, so that collision noise between the pressing block 100 and the steering gear shell 10 caused by radial swing is relieved; the buffer pad 130 is embedded at one end, away from the rack 20, of the pressing block 100, and the buffer pad 130 is abutted against the adjusting screw plug 300, so that impact of the pressing block 100 on the adjusting screw plug 300 can be effectively buffered.
In some embodiments, the side wall of the pressing block 100 is provided with a first ring groove 140 and a second ring groove 150, a part of the first rubber ring 110 is embedded in the first ring groove 140, a part of the second rubber ring 120 is embedded in the second ring groove 150, and the first rubber ring 110 and the second rubber ring 120 can be accommodated by arranging the first ring groove 140 and the second ring groove 150. Illustratively, the first ring groove 140 and the second ring groove 150 open in the circumferential direction of the compact 100. In a preferred embodiment, the first ring groove 140 and the second ring groove 150 are respectively located at two ends of the sidewall of the pressing block 100 in the axial direction. The first rubber ring 110 and the second rubber ring 120 may be, but not limited to, O-type rubber rings.
In some embodiments, the end of the pressing block 100 near the adjusting screw plug 300 is provided with the third ring groove 160, the adjusting screw plug 300 is provided with the fourth ring groove 310 aligned with the third ring groove 160, one end of the cushion pad 130 is embedded into the third ring groove 160, and the other end of the cushion pad 130 is embedded into the fourth ring groove 310, and by setting the third ring groove 160 and the fourth ring groove 310, the cushion pad 130 can be accommodated. Illustratively, the cushion pad 130 has an annular cylindrical shape matching the third annular groove 160, so that the compact 100 can achieve good noise reduction in both the axial and radial directions. The cushion pad 130 may be, but not limited to, a nylon material, and the cushion pad 130 of the nylon material has a characteristic of high rigidity and is capable of better relieving impact.
In order to ensure the stability of the coil spring 200, a first spring groove 170 is formed at one end of the pressing block 100, which is close to the adjusting screw plug 300, a second spring groove 320 aligned with the first spring groove 170 is formed at the adjusting screw plug 300, one end of the coil spring 200 is embedded into the first spring groove 170, and the other end of the coil spring 200 is embedded into the second spring groove 320, so that the coil spring 200 is prevented from being separated in the working process. As a preferred technical solution, the first spring groove 170 is formed along the axis of the pressing block 100, so that the acting force of the coil spring 200 on the pressing block 100 can be converged in the axis direction of the pressing block 100, and further the swinging condition of the pressing block 100 caused by the coil spring 200 is reduced.
Optionally, the pressing block 100 is provided with a first through hole 180 communicated with the first spring groove 170, the adjusting screw plug 300 is provided with a second through hole 330 communicated with the second spring groove 320, the second through hole 330 is embedded with a rubber plug 340, through the structure, the first through hole 180 is communicated with the second through hole 330, the purpose of pressure relief through the second through hole 330 is achieved, and the second through hole 330 is sealed through the rubber plug 340 after pressure relief.
In some embodiments, the outer wall of the adjusting screw 300 is provided with external threads, and the steering gear housing 10 is provided with internal threads that are screw-fitted with the external threads, and by rotating the adjusting screw 300, the elastic force of the coil spring 200 can be adjusted. As a preferable technical solution, the locking nut 350 is screwed on the external thread, the locking nut 350 is abutted against the steering gear housing 10, the locking nut 350 can lock the adjusting plug 300, so as to avoid loosening of the adjusting plug 300 and ensure the reliability of the adjusting plug 300.
The steering gear rack gap adjusting mechanism provided by the invention has the following action principle:
in the working process of the steering gear, impact force from the power-assisted end to the gear 30 and reverse impact force from the load end can be acted on the pressing block 100 through the rack 20, the spiral spring 200 can relieve axial impact of the pressing block 100, and when the impact is large, the pressing block 100 still possibly collides with the adjusting screw plug 300 to generate noise, the impact force is buffered through the buffer pad 130, and noise generated when the pressing block 100 collides with the adjusting screw plug 300 can be effectively avoided; meanwhile, since both ends of the cushion pad 130 are respectively embedded in the third ring groove 160 and the fourth ring groove 310, and the cushion pad 130 is annular and cylindrical, the cushion pad 130 can play a role in guiding movement, and can prevent the oscillation of the pressing block 100 to a certain extent; in the radial direction, the impact noise of the pressing block 100 on the steering gear shell 10 in the radial direction is relieved through the first rubber ring 110 and the second rubber ring 120 inlaid in the first annular groove 140 and the second annular groove 150, the noise from the swinging direction of the pressing block 100 can be reduced, and the double rubber ring structure formed by the first rubber ring 110 and the second rubber ring 120 has a certain vibration isolation effect; the adjusting screw plug 300 is in threaded connection with the internal thread of the steering gear housing 10 through the external thread, and the locking nut 350 locks the adjusting screw plug 300, so that the adjusting screw plug 300 can be fixed on the steering gear housing 10 in a limited way, and the rubber plug 340 is plugged into the second through hole 330 to realize sealing.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (10)

1. A steering gear rack and pinion gap adjustment mechanism, comprising:
the pressing block is arranged in the steering gear shell in a sliding manner, one end of the pressing block is abutted to the rack, a first rubber ring and a second rubber ring are embedded in the side wall of the pressing block, the first rubber ring and the second rubber ring are in interference fit with the inner wall of the steering gear shell, and a buffer pad is embedded in one end, deviating from the rack, of the pressing block;
one end of the spiral spring is abutted with the pressing block;
the adjusting screw plug is arranged in the steering gear shell in a position-adjustable mode, one end of the adjusting screw plug is abutted to one end, away from the pressing block, of the spiral spring, and one end, abutted to the spiral spring, of the adjusting screw plug is abutted to the cushion pad.
2. The steering gear rack and pinion gap adjustment mechanism of claim 1 wherein the side wall of the press block is provided with a first annular groove and a second annular groove, a portion of the first rubber ring is embedded in the first annular groove, and a portion of the second rubber ring is embedded in the second annular groove.
3. The steering gear rack gap adjustment mechanism according to claim 2, wherein the first ring groove and the second ring groove are opened along a circumferential direction of the press block.
4. The steering gear rack gap adjustment mechanism according to claim 1, wherein a third annular groove is formed in one end of the pressing block, which is close to the adjustment screw plug, a fourth annular groove aligned with the third annular groove is formed in the adjustment screw plug, one end of the cushion pad is embedded into the third annular groove, and the other end of the cushion pad is embedded into the fourth annular groove.
5. The steering gear rack gap adjustment mechanism according to claim 4, wherein the cushion pad has an annular cylindrical shape that matches the third annular groove.
6. The steering gear rack gap adjustment mechanism according to claim 1, wherein a first spring groove is formed in one end of the pressing block, which is close to the adjustment screw plug, a second spring groove aligned with the first spring groove is formed in the adjustment screw plug, one end of the coil spring is embedded into the first spring groove, and the other end of the coil spring is embedded into the second spring groove.
7. The steering gear rack gap adjustment mechanism of claim 6, wherein the first spring slot is open along an axis of the press block.
8. The steering gear rack gap adjustment mechanism according to claim 6, wherein the press block is provided with a first through hole communicated with the first spring groove, the adjustment screw plug is provided with a second through hole communicated with the second spring groove, and the second through hole is embedded with a rubber plug.
9. The steering gear rack gap adjustment mechanism according to claim 1, wherein an outer wall of the adjustment screw plug is provided with an external thread, and the steering gear housing is provided with an internal thread that is screw-fitted with the external thread.
10. The steering gear rack gap adjustment mechanism of claim 9, wherein the external thread is threadably connected with a lock nut that abuts the steering gear housing.
CN202310950934.0A 2023-07-31 2023-07-31 Steering gear rack and pinion clearance adjustment mechanism Pending CN116972157A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310950934.0A CN116972157A (en) 2023-07-31 2023-07-31 Steering gear rack and pinion clearance adjustment mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310950934.0A CN116972157A (en) 2023-07-31 2023-07-31 Steering gear rack and pinion clearance adjustment mechanism

Publications (1)

Publication Number Publication Date
CN116972157A true CN116972157A (en) 2023-10-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310950934.0A Pending CN116972157A (en) 2023-07-31 2023-07-31 Steering gear rack and pinion clearance adjustment mechanism

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117208069A (en) * 2023-11-09 2023-12-12 豫北转向系统(新乡)股份有限公司 Steering gear adjusting body structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117208069A (en) * 2023-11-09 2023-12-12 豫北转向系统(新乡)股份有限公司 Steering gear adjusting body structure

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