CN115107860A - Steering gear rack briquetting mechanism, steering gear and vehicle - Google Patents

Steering gear rack briquetting mechanism, steering gear and vehicle Download PDF

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Publication number
CN115107860A
CN115107860A CN202110299522.6A CN202110299522A CN115107860A CN 115107860 A CN115107860 A CN 115107860A CN 202110299522 A CN202110299522 A CN 202110299522A CN 115107860 A CN115107860 A CN 115107860A
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CN
China
Prior art keywords
rack
steering
steering gear
briquetting mechanism
curved surface
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
CN202110299522.6A
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Chinese (zh)
Inventor
夏建飞
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HL Mando Corp
Original Assignee
Mando 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 Mando Corp filed Critical Mando Corp
Priority to CN202110299522.6A priority Critical patent/CN115107860A/en
Publication of CN115107860A publication Critical patent/CN115107860A/en
Pending legal-status Critical Current

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    • 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
    • B62D3/126—Steering gears mechanical of rack-and-pinion type characterised by the rack
    • 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

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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)
  • Transmission Devices (AREA)

Abstract

The invention relates to a steering gear rack briquetting mechanism, a steering gear and a vehicle, wherein the steering gear rack briquetting mechanism is arranged in a steering gear shell and comprises: a support seat having a first end proximate to the rack and a second end fixed to a plug screw on the steering housing; and the supporting seat elastic piece can be elastically and telescopically arranged at the first end of the supporting seat and abuts against the rack. Therefore, the steering engine rack briquetting mechanism provided by the embodiment of the invention can solve the problems that the compensation effect is gradually reduced and the rack clearance of the steering engine is increasingly increased after the steering engine works for a long time, can reduce noise and improve the comfort of a driver when driving a vehicle; in addition, compared with the prior art, the steering gear rack briquetting mechanism provided by the embodiment of the invention has a simple structure and can save cost.

Description

Steering gear rack briquetting mechanism, steering gear and vehicle
Technical Field
The invention relates to the technical field of vehicle steering machines, in particular to a steering machine rack briquetting mechanism, a steering machine and a vehicle, and particularly relates to the steering machine rack briquetting mechanism, the steering machine and the vehicle, which are simple in structure, beneficial to noise control and capable of saving cost.
Background
When a driver operates a steering wheel, the steering engine helps the driver to reduce the effort during steering, and the purpose of easily and conveniently driving a vehicle is achieved.
The steering engine has the following working principle that when a driver applies torque to a steering wheel, the torque is transmitted to a steering engine gear through a steering column and applies acting force to a steering engine rack meshed with the steering engine gear, so that the steering engine rack makes linear motion and drives a steering pull rod, and finally the wheel hub is driven to rotate by the pull rod, so that deflection motion of a tire is realized.
However, a rack gap is generally generated due to influences such as actual machining accuracy, assembly, and wear after a long time use. Conventionally, a rack clearance compensation mechanism is provided in a steering gear so that a rack clearance of the steering gear can be adjusted.
As shown in fig. 1, a conventional steering rack press mechanism is mounted on a steering housing 11, and a coil spring 13 is provided at one end of a support base 12 for providing a preload force. The other end of the spiral spring 13 is connected with the screw plug, and when a locking nut arranged at the tail end of the screw plug is screwed, the gap between the teeth of the steering engine is fixed; when the lock nut is loosened and the plug screw is adjusted, the plug screw compresses the coil spring 13, and the coil spring 13 presses the rack 14 through the support base 12 to achieve the compensation of the rack clearance.
However, because the coil spring is not strictly limited, displacement sometimes occurs, and after the existing steering gear rack press block mechanism providing pretightening force works for a long time, the compensation effect gradually decreases, the rack clearance of the steering gear is increased more and more, and then abnormal sound is generated, so that not only the performance of the steering gear is influenced, but also the comfort of a driver when driving a vehicle is influenced.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a rack briquetting mechanism of a steering engine, which aims to solve the problems that the existing rack briquetting mechanism of the steering engine is not ideal in clearance compensation effect, not beneficial to noise and high in cost.
A second objective of the present invention is to provide a steering gear and a vehicle including the above steering gear rack press block mechanism, so as to solve the problems that the existing steering gear rack press block mechanism has an undesirable effect on clearance compensation, is not favorable for noise, and has a high cost.
(II) technical scheme
In order to solve the above technical problem, in one aspect, the present invention provides a rack press block mechanism of a steering gear, which is disposed in a steering gear housing, the rack press block mechanism of the steering gear comprising: a support seat having a first end proximate to the rack and a second end fixed to a plug screw on the steering housing; and the supporting seat elastic piece can be elastically and telescopically arranged at the first end of the supporting seat and abuts against the rack.
Optionally, the end surface of the first end is concavely formed into a first curved surface, and a setting part for setting the supporting seat elastic element is formed in the center of the first curved surface.
Alternatively, the setting portion is formed perpendicularly to the end face of the second end from the center of the end face of the first end.
Optionally, the support seat elastic member comprises: a support seat elastic part which is formed inside the first curved surface as a second curved surface bent towards the first end and can elastically deform; and a moving part extending from the center of the surface of the support seat elastic part to the first end and moving in the setting part.
Optionally, the radius of curvature of the second curved surface in the unstressed state is larger than the radius of curvature of the first curved surface, and the moving portion is located at a first position in the setting portion.
Optionally, the second curved surface is attached to the first curved surface in a stressed state, and the moving portion is located at a second position in the setting portion, wherein the second position is deeper than the first position.
Alternatively, the length of the moving part is shorter than the depth of the setting part.
On the other hand, the invention also provides a steering engine which comprises the steering engine rack briquetting mechanism.
In another aspect, the invention further provides a vehicle, which comprises the steering gear rack briquetting mechanism.
(III) advantageous effects
Compared with the prior art, the invention has the following advantages: the invention provides a rack briquetting mechanism of a steering engine, which is arranged in a steering engine shell and comprises: a support seat having a first end proximate to the rack and a second end fixed to a plug screw on the steering housing; and the supporting seat elastic piece can be elastically and telescopically arranged at the first end of the supporting seat and abuts against the rack. Therefore, the steering engine rack briquetting mechanism provided by the embodiment of the invention not only can solve the problems that the compensation effect is gradually reduced and the rack clearance of the steering engine is gradually increased after the steering engine works for a long time, but also can reduce noise and improve the comfort of a driver when driving a vehicle; in addition, compared with the prior art, the steering gear rack briquetting mechanism provided by the embodiment of the invention has a simple structure and can save cost.
Drawings
The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic view showing a structure of a rack press mechanism of a steering gear according to the prior art;
fig. 2 is a schematic structural view showing a rack pressing mechanism of a steering gear according to an embodiment of the present invention;
FIG. 3 is a perspective view showing a rack press mechanism of a steering gear according to an embodiment of the invention;
FIG. 4 is a schematic diagram illustrating a steering gear rack press mechanism in an unstressed condition according to an embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a steering gear rack press block mechanism under a force condition according to an embodiment of the present invention;
in the figure: 11: a housing; 12. 21: a supporting seat; 13: a coil spring; 14, 24: a rack; 210: a setting part; 22: a support seat elastic member; 221: a support base elastic part; 222: a moving part; 31: a first curved surface; 32: a second curved surface; 41: a first position; 42: a second position. .
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality", and "a plurality" mean two or more unless otherwise specified.
Fig. 2 is a schematic structural view showing a rack pressing mechanism of a steering gear according to an embodiment of the present invention; FIG. 3 is a perspective view showing a rack press mechanism of a steering gear according to an embodiment of the invention; FIG. 4 is a schematic diagram illustrating a steering gear rack press mechanism in an unstressed condition according to an embodiment of the present invention; fig. 5 is a schematic diagram showing a rack briquetting mechanism of a steering gear according to an embodiment of the invention under a force condition.
According to an embodiment of the present invention, there is provided a steering gear rack 24 weight mechanism that is provided in a steering gear housing and may include: a support seat having a first end proximate to the rack 24 and a second end fixed to a plug screw on the steering housing; and a support seat elastic member 22 elastically and telescopically arranged at the first end of the support seat and abutted against the rack 24.
Specifically, referring to fig. 2 and 3, the steering rack 24 weight mechanism is provided in the steering gear housing, and one end, i.e., a first end, of the support base of the steering rack 24 weight mechanism is located against the rack 24; the other end of the support base, i.e., the second end, is connected to the plug screw.
The second end may be fixedly connected to the plug screw, the end surface of the first end may be recessed toward the second end to form a first curved surface 31, and a setting portion 210 for setting the support seat elastic element 22 may be formed at a central position of the first curved surface 31, and the setting portion 210 may extend vertically from the center of the first curved surface 31 to the end surface of the second end through the inside of the support seat.
Further, in contrast to the prior art, the rack bar 24 pressing block mechanism of the steering gear according to the embodiment of the present invention replaces the coil spring by the support seat elastic member 22 to obtain elastic potential energy for compensating for the gap, and the support seat elastic member 22 is elastically and telescopically provided at the first end of the support seat to be able to provide an elastic force to the rack bar 24.
Specifically, the support seat elastic member 22 may include a support seat elastic portion 221 and a moving portion 222, wherein the support seat elastic portion 221 is formed of an elastically deformable material, is located inside the first curved surface 31, and is bent to form the second curved surface 32, and in an initial state, i.e., an unstressed state, as shown in fig. 4, a radius of curvature of the second curved surface 32 is larger than a radius of curvature of the first curved surface 31, so that both ends of the support seat elastic portion 221 may abut against the first curved surface 31 and a gap may be formed between the first curved surface 31 and the support seat elastic portion 221; the moving portion 222 is formed to extend from the center of the surface of the support seat elastic portion 221 to a first end and is disposed in the setting portion 210, the setting portion 210 is formed as a moving channel of the moving portion 222, and the length of the moving portion 222 may be shorter than the depth of the setting portion 210.
As shown in fig. 4 and 5, when the pressing mechanism of the steering rack 24 according to the embodiment of the present invention is in the initial state, i.e., the unstressed state, since the radius of curvature of the second curved surface 32 is larger than that of the first curved surface 31, both ends of the support seat elastic portion 221 are located inside the first curved surface 31 and form a gap with the first curved surface 31, the moving portion 222 is partially located in the setting portion 210, and the remaining portion is located in the gap formed by the support seat elastic portion 221 and the first curved surface 31, and at this time, the moving portion 222 is located at the first position 41 in the setting portion 210.
When the rack bar 24 pressing mechanism of the steering gear according to the embodiment of the present invention is in a stressed state, that is, when the rack bar 24 comes into contact with, the support seat elastic portion 221 is gradually deformed and moves toward the first curved surface 31, and finally, the second curved surface 32 completely conforms to the shape of the first curved surface 31, and the moving portion 222 is also completely built in the setting portion 210, at which time the moving portion 222 is located at the second position 42 in the setting portion 210.
That is, when the rack 24 locking mechanism of the steering gear is in the initial state to the final state, the support seat elastic portion 221 is gradually deformed by the influence of the rack 24, and finally the second curved surface 32 and the first curved surface 31 are completely attached to each other, and the moving portion 222 is gradually moved from the first position 41 to the second position 42, and finally completely placed in the installation portion 210.
Through the structure, when the steering engine is used for a long time, abrasion occurs between the rack and the gear shaft, and the gap is increased, good gap compensation effect can be realized through the elastic potential energy of the elastic part of the supporting seat, and the rack pressing block mechanism of the steering engine has a simple structure, is beneficial to noise control, and has relatively low manufacturing cost.
In another aspect, the invention further provides a steering gear, which comprises the steering gear rack briquetting mechanism according to the embodiment of the invention, so that the noise can be reduced and the cost can be reduced while the steering gear rack clearance is effectively compensated.
In still another aspect, the invention further provides a vehicle including the steering rack briquetting mechanism according to the embodiment of the invention, so that noise can be reduced and cost can be saved while the steering rack clearance is effectively compensated.
Compared with the prior art, the invention has the following advantages: the invention provides a rack briquetting mechanism of a steering gear, which is arranged in a steering gear shell, and comprises: a support seat having a first end proximate to the rack and a second end fixed to a plug screw on the steering housing; and the supporting seat elastic piece can be elastically and telescopically arranged at the first end of the supporting seat and abuts against the rack. Therefore, the steering engine rack briquetting mechanism provided by the embodiment of the invention can solve the problems that the compensation effect is gradually reduced and the rack clearance of the steering engine is increasingly increased after the steering engine works for a long time, can reduce noise and improve the comfort of a driver when driving a vehicle; in addition, compared with the prior art, the steering gear rack briquetting mechanism provided by the embodiment of the invention has a simple structure and can save cost.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (9)

1. The utility model provides a steering gear rack briquetting mechanism, sets up in steering gear casing which characterized in that:
the rack briquetting mechanism of the steering gear comprises:
a support seat having a first end proximate to the rack and a second end secured to a plug screw on the steering housing; and
the supporting seat elastic piece is elastically and telescopically arranged at the first end of the supporting seat and abuts against the rack.
2. The steering rack briquetting mechanism of claim 1, wherein:
the end face of the first end is concavely formed into a first curved surface, and a setting part for setting the supporting seat elastic piece is formed in the center of the first curved surface.
3. The steering rack briquetting mechanism of claim 2, wherein:
the setting portion is formed perpendicularly to the end face of the second end from the center of the end face of the first end.
4. The steering rack briquetting mechanism of claim 3, wherein:
the supporting seat elastic piece includes:
a support seat elastic portion that is formed inside the first curved surface as a second curved surface that is curved toward the first end and that is elastically deformable; and
and a moving part extending from the center of the surface of the elastic part of the support seat to the first end and moving in the setting part.
5. The steering rack briquetting mechanism of claim 4, wherein:
the curvature radius of the second curved surface in an unstressed state is larger than that of the first curved surface, and the moving part is located at a first position in the setting part.
6. The steering rack briquetting mechanism of claim 5, wherein:
the second curved surface is attached to the first curved surface in a stressed state, the moving part is located at a second position in the setting part, and the second position is deeper than the first position.
7. The steering rack briquetting mechanism of claim 6, wherein:
the length of the moving part is shorter than the depth of the setting part.
8. A steering machine characterized by:
comprising a steering rack briquetting mechanism according to any of claims 1 to 7.
9. A vehicle, characterized in that:
comprising a steering rack briquetting mechanism according to any of claims 1 to 7.
CN202110299522.6A 2021-03-22 2021-03-22 Steering gear rack briquetting mechanism, steering gear and vehicle Pending CN115107860A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110299522.6A CN115107860A (en) 2021-03-22 2021-03-22 Steering gear rack briquetting mechanism, steering gear and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110299522.6A CN115107860A (en) 2021-03-22 2021-03-22 Steering gear rack briquetting mechanism, steering gear and vehicle

Publications (1)

Publication Number Publication Date
CN115107860A true CN115107860A (en) 2022-09-27

Family

ID=83324118

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110299522.6A Pending CN115107860A (en) 2021-03-22 2021-03-22 Steering gear rack briquetting mechanism, steering gear and vehicle

Country Status (1)

Country Link
CN (1) CN115107860A (en)

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Address after: Gyeonggi Do, South Korea

Applicant after: Hanna Wandu Co.,Ltd.

Address before: Gyeonggi Do, South Korea

Applicant before: MANDO Corp.

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