CN219927785U - Steering structure and vehicle - Google Patents

Abstract

The utility model discloses a steering structure and a vehicle, wherein the steering structure comprises: rack, casing, gear, input shaft and elastic component. The shell is sleeved on the periphery of the rack; the gear and the input shaft are of an integrated structure, and the gear of the integrated structure is meshed with the rack; the elastic piece is sleeved on the periphery of the rack and is positioned at the end part of the rack; when the input shaft is stressed, the gear is meshed with the rack, so that the rack moves linearly relative to the shell until the elastic piece is in contact with the shell and is compressed. According to the steering structure provided by the embodiment of the utility model, the service life of the steering structure can be prolonged, the structure is simple, and the use aspect is realized.

Description

Steering structure and vehicle

Technical Field

The utility model relates to the technical field of automobile manufacturing, in particular to a steering structure and a vehicle.

Background

The mechanical steering machine comprises a pull rod, a rack, a shell, a steering input shaft and an anti-collision block, wherein the rack is arranged in the shell and is connected with the steering input shaft through a gear-rack pair, and the left end and the right end of the rack are respectively connected with the pull rod through the anti-collision block. The torque output by the steering wheel and the power-assisted motor is transmitted to a steering input shaft of the mechanical steering machine through an intermediate shaft, the steering input shaft converts the rotating torque into linear motion of a rack relative to the shell through a gear-rack meshing mode, and then the linear motion is transmitted to a wheel control arm through a pull rod, so that the whole vehicle steering is finally realized.

In the related art, although the power assistance provided by the power assistance motor is weakened when the steering gear works to the left and right extreme positions, some impact force still exists, and since the anti-collision block is made of metal or plastic, abrasion phenomenon can occur after multiple impacts, thereby reducing the service life of the steering gear and increasing the cost of replacing the steering gear again, so there is room for improvement.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, a first object of the present utility model is to provide a steering structure, which can prolong the service life.

A second object of the utility model proposes a vehicle.

A first aspect of the present utility model proposes a steering structure comprising: the gear rack comprises a rack, a shell, a gear, an input shaft and an elastic piece, wherein the shell is sleeved on the periphery of the rack; the gear and the input shaft are of an integrated structure, and the gear of the integrated structure is meshed with the rack; the elastic piece is sleeved on the periphery of the rack and is positioned at the end part of the rack; when the input shaft is stressed, the gear is meshed with the rack, so that the rack moves linearly relative to the shell until the elastic piece is in contact with the shell and is compressed.

According to an embodiment of the present utility model, the steering structure further includes: the inner ball seat is provided with a first matching part in the axial direction of the rack, the inner ball seat is provided with a second matching part in the axial direction of the rack, and the first matching part is matched with the second matching part and coaxially corresponds to the elastic piece.

In some embodiments, the first mating portion is recessed inwardly to form a threaded bore having an internal thread, and the second mating portion is raised outwardly toward the threaded bore to form a post having an external thread, the post mating with the threaded bore.

In some embodiments, the steering structure further comprises: the limiting piece is annular, and the limiting piece is sleeved on the periphery of the rack and coaxially corresponds to the elastic piece.

In some embodiments, the inner ball seat has a stop portion that forms a shoulder location with an end of the rack for the definition of the spring position.

In some embodiments, the elastic member is disposed between the inner ball seat and the retainer.

In some embodiments, the resilient member is a buffer spring.

In some embodiments, the steering structure further comprises: the connecting rod is provided with a connecting ball protruding outwards, one end of the inner ball seat, deviating from the rack, is provided with an inwards concave hole, and the concave hole is matched with the connecting ball.

In some embodiments, the stop is a cylindrical end surface.

A second aspect of the utility model proposes a vehicle comprising the steering arrangement.

According to the steering structure provided by the embodiment of the utility model, the elastic pieces are arranged at the two ends of the rack, the rack moves linearly relative to the shell when the rack is meshed with the gear racks, and when the rack moves linearly relative to the shell to a limit position, the elastic pieces are in contact with the shell and compress, so that the absorption of kinetic energy is realized, and the service life of the steering structure is prolonged.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of a steering structure according to an embodiment of the present utility model.

Reference numerals:

the turning to the structure 100 is performed,

the rotation of the rack 10, the threaded hole 101,

the housing 20, the elastic member 30, the stopper 31,

the ratio of the gear 40, the input shaft 41,

inner ball seat 50, boss 501, concave hole 502, limit part 503,

a link 60, a connection ball 601.

Detailed Description

Embodiments of the present utility model 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 only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "plate thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Turning to structure 100 according to an embodiment of the present utility model is described below in conjunction with FIG. 1.

As shown in fig. 1, a first aspect of the present disclosure proposes a steering structure 100 including: rack gear 10, housing 20, gear 40, input shaft 41, and elastic member 30. The shell 20 is sleeved on the periphery of the rack 10; the gear 40 and the input 41 are in an integral structure, and the gear 40 of the integral structure is meshed with the rack 10; the elastic piece 30 is sleeved on the periphery of the rack 10 and is positioned at the end part of the rack 10; when the input shaft 41 is stressed, the gear 40 is meshed with the rack 10, so that the rack 10 moves linearly relative to the housing 20 until the elastic member 30 contacts and compresses with the housing 20.

It can be understood that the rack 10 is cylindrical, the elastic member 30 is spiral, and the elastic member 30 is sleeved on both the left and right ends (left and right directions as shown in fig. 1) of the rack 10, and the purpose of the elastic member 30 as a buffer member is to prolong the service life of the steering structure 100 and reduce the replacement cost. Specifically, for example, the input shaft 41 is stressed, the input shaft 41 engages the rack 10 through the gear 40 to form a linear motion, for example, a linear motion or a reciprocating linear motion, of the rack 10 relative to the housing 20, and when the rack 10 moves to a limit position relative to the housing 20, the elastic member 30 contacts the housing 20 and compresses the elastic member 30 to absorb kinetic energy, thereby realizing a buffering effect, improving the service life of the steering structure 100, and saving replacement cost.

According to the steering structure 100 of the embodiment of the utility model, the elastic members 30 are arranged at the two ends of the rack 10, the elastic members 30 enable the rack 10 to move linearly relative to the housing 20 when the rack 10 is meshed with the rack 10 of the gear 40, and when the rack 10 moves linearly relative to the housing 20 to a limit position, the elastic members 30 are in contact with and compress the housing 20, so that kinetic energy is absorbed, and the service life of the steering structure 100 is prolonged.

In order to ensure that the elastic member 30 can be compressed, the steering structure 100 further includes: the inner ball seat 50 has a first mating portion in the axial direction of the rack 10, and the inner ball seat 50 has a second mating portion in the axial direction, and the first mating portion mates with the second mating portion and coaxially corresponds to the elastic member 30.

It will be appreciated that the inner ball socket 50 is detachably connected to the rack 10, for example, by screwing, the elastic member 30 is compressed to the inner ball socket 50, i.e. the compression of the elastic member 30 is performed on the inner ball socket 50, for example, the inner ball socket 50 is fixed, the elastic member 30 is compressed to the inner ball socket 50 by the housing 20, and the inner ball socket 50 realizes the limitation of the compressed position of the elastic member 30.

In some embodiments, for the purpose of compressing the elastic member 30 onto the inner ball socket 50 on the one hand, and for the purpose of easy assembly and disassembly on the other hand, the first engaging portion is recessed inward to form the threaded hole 101 having the internal thread, and the second engaging portion is protruded outward toward the direction of the threaded hole 101 to form the boss 501 having the external thread, and the boss 501 is engaged with the threaded hole 101.

In some embodiments, to facilitate compression of the resilient member 30 by the housing 20 and to define the extent of the resilient member 30, the steering structure 100 further includes: the limiting piece 31, the limiting piece 31 is annular, and the limiting piece 31 is sleeved on the periphery of the rack 10 and coaxially corresponds to the elastic piece 30.

It can be understood that the limiting member 31 is used for limiting the range of the elastic member 30, and in addition, the housing 20 is convenient to contact so as to compress the elastic member 30, the housing 20 contacts with the limiting member 31 first, and the elastic member 30 is compressed onto the inner ball seat 50 by the limiting member 31, so that kinetic energy is absorbed, and the service life of the steering structure 100 is further prolonged.

In some embodiments, for compression of the elastic member 30 onto the inner head piece 50, the inner head piece 50 has a stopper 503, the stopper 503 and the end of the rack 10 forming a shoulder location, the shoulder being used for defining the position of the elastic member 30.

In some embodiments, compression of the resilient member 30 and retention of the resilient member 30 are ensured. The elastic member 30 is disposed between the inner ball seat 50 and the stopper 31.

In some embodiments, the elastic member 30 is a buffer spring in order to buffer the impact force.

In some embodiments, steering structure 100 further comprises: connecting rod 60, connecting rod 60 has outwardly protruding connecting ball 601 thereon, and inner ball seat 50 has inwards concave recess 502 in the end that faces away from rack 10, recess 502 and connecting ball 601 cooperation.

In some embodiments, the stop 503 of the steering structure 100 is a cylindrical end surface in order for the spring to be compressed against the stop.

A second aspect of the utility model proposes a vehicle comprising the steering arrangement 100.

The steering structure 100 and other described structures and operations according to embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail herein. The vertical direction, the horizontal direction, and the front-rear direction are defined by the vertical direction, the horizontal direction, and the front-rear direction in the drawing.

In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact by another feature 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.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A steering structure, characterized by comprising: the shell is sleeved on the periphery of the rack;

the gear and the input shaft are of an integrated structure, and the gear of the integrated structure is meshed with the rack;

the elastic piece is sleeved on the periphery of the rack and is positioned at the end part of the rack;

when the input shaft is stressed, the gear is meshed with the rack, so that the rack moves linearly relative to the shell until the elastic piece is in contact with the shell and is compressed.

2. The steering structure according to claim 1, characterized by further comprising: the inner ball seat is provided with a first matching part in the axial direction of the rack, the inner ball seat is provided with a second matching part in the axial direction of the rack, and the first matching part is matched with the second matching part and coaxially corresponds to the elastic piece.

3. The steering structure according to claim 2, wherein the first engaging portion is recessed inward to form a threaded hole having an internal thread, and the second engaging portion is raised outward toward the threaded hole to form a boss having an external thread, the boss being engaged with the threaded hole.

4. The steering structure according to claim 2, characterized by further comprising: the limiting piece is annular, and the limiting piece is sleeved on the periphery of the rack and coaxially corresponds to the elastic piece.

5. The steering structure according to claim 4, wherein the inner ball seat has a stopper portion that forms a shoulder position with an end of the rack, the shoulder being used for the defining of the position of the elastic member.

6. The steering structure according to claim 5, wherein the elastic member is provided between the inner ball seat and the stopper.

7. The steering structure according to claim 2, wherein the elastic member is a cushion spring.

8. The steering structure according to claim 2, characterized by further comprising: the connecting rod is provided with a connecting ball protruding outwards, one end of the inner ball seat, deviating from the rack, is provided with an inwards concave hole, and the concave hole is matched with the connecting ball.

9. The steering structure according to claim 6, wherein the stopper portion is a cylindrical end surface.

10. A vehicle comprising a steering arrangement according to any one of claims 1-9.