CN219428219U - Steering gear shell and automobile steering gear - Google Patents

Abstract

The utility model provides a steering gear shell and an automobile steering gear, wherein the steering gear shell comprises a rack cast aluminum body, a middle connecting pipe and an adapter sleeve, a first end of the middle connecting pipe is connected with the rack cast aluminum body, a second end of the middle connecting pipe is connected with the adapter sleeve, and the outer wall of the first end of the middle connecting pipe is inwards recessed to form a groove and/or the outer wall of the first end of the middle connecting pipe is outwards protruded to form a convex block. Simple structure, processing is convenient, through the setting of lug or recess, further increases rack cast aluminium body and middle takeover mating surface's frictional resistance, prevents that middle takeover from appearing becoming flexible at the steering gear during operation, influences the joint strength between the spare part to influence steering gear reliability, increaseed steering gear and applied motorcycle type, can satisfy the motorcycle type that front axle full load is less than or equal to 930KG, reduced steering gear cost, adaptation market needs.

Description

Steering gear shell and automobile steering gear

Technical Field

The utility model relates to the technical field of automobile steering, in particular to a steering gear shell and an automobile steering gear.

Background

The automobile steering device assembly is a steering device of an automobile steering system, the shell is a key part in the steering device, and the connection strength and the cost of the steering device are directly related to the cost of the automobile steering device and the steering device.

The shell of the existing steering gear has two structures, one is integrally cast and formed, and the other is formed by combining and die-casting the middle connecting pipe. The cost of the integrated shell is about 60 elements/piece higher than that of the middle connecting pipe combined forming shell, the pressure of die casting equipment is 2 times that of the die casting equipment, and the investment cost and the maintenance cost of the die casting equipment are higher than those of the die casting equipment. In the case of highly competitive market situations, the diverter is therefore generally formed from a central connecting piece assembly, with the strength requirement being met.

The prior middle connecting pipe combined forming shell adopts a smooth cylindrical surface to carry out interference fit with a rack cast aluminum body, so that the connection strength of the steering gear during working is ensured, but the interference is not allowed to be infinite because of the assembly feasibility, so the connection strength is limited, and the connection mode is only suitable for a micro vehicle (the full load of a front axle is less than or equal to 750 Kg) and is not suitable for a vehicle with a larger full load of the front axle.

In view of this, a new solution is needed to solve the above technical problems.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a steering gear shell and an automobile steering gear, which have simple structures and further strengthen the connection strength of a middle connecting pipe and a rack cast aluminum body.

In order to achieve the above object, according to a first aspect of the present utility model, there is provided a steering gear housing including a rack cast aluminum body, a middle adapter tube, and an adapter sleeve, wherein a first end of the middle adapter tube is connected to the rack cast aluminum body, a second end of the middle adapter tube is connected to the adapter sleeve, and an outer wall of the first end of the middle adapter tube is concaved inward to form a groove and/or an outer wall of the first end of the middle adapter tube is convexly protruded outward to form a protrusion.

In a further technical scheme, the side wall of the first end of the middle connecting pipe is inwards recessed to form a groove.

In a further technical scheme, the grooves are spiral grooves, and the spiral grooves are arranged on the outer wall of the middle connecting pipe in a surrounding mode.

In a further technical scheme, the cross section of the groove is triangular, trapezoidal, arc-shaped or rectangular.

In a further technical scheme, the side wall of the first end of the middle connecting pipe protrudes outwards to form a convex block.

In a further technical scheme, the lug is a spiral lug, and the spiral lug is arranged around the outer wall of the middle connecting pipe.

In a further technical scheme, the cross section of the convex block is triangular, trapezoidal, arc-shaped or rectangular.

In a second aspect, the utility model also provides an automobile steering gear, comprising the steering gear shell.

Compared with the prior art, the utility model has the following technical effects: the steering gear shell is simple in structure and convenient to process, friction resistance of the matching surface of the rack cast aluminum body and the middle connecting pipe is further increased through the arrangement of the protruding blocks or the grooves, the middle connecting pipe is prevented from loosening during the working of the steering gear, connection strength between parts is affected, reliability of the steering gear is affected, the applicable vehicle type of the steering gear is improved, the vehicle type with the front axle full load being less than or equal to 930KG can be met, cost of the steering gear is reduced, and market requirements are met.

An automobile steering gear comprises all technical schemes of a steering gear shell, so that the description is omitted.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a steering gear.

Fig. 2 is a schematic diagram of the structure of the intermediate nipple.

Fig. 3 is a schematic structural view of the housing.

Description of main reference numerals:

1-rack cast aluminum body, 2-middle connecting pipe, 21-groove, 22-bump and 3-adapter sleeve.

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", "lateral", "length", "width", "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, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Example 1

Referring to fig. 1-3, a steering gear housing comprises a rack cast aluminum body 1, a middle connecting pipe 2 and an adapter sleeve 3, wherein a first end of the middle connecting pipe 2 is connected with the rack cast aluminum body 1, a second end of the middle connecting pipe 2 is connected with the adapter sleeve 3, an outer wall of the first end of the middle connecting pipe 2 is inwards sunken to form a groove 21, and an outer wall of the first end of the middle connecting pipe 2 is outwards protruded to form a convex block 22. Simple structure, processing is convenient, through the setting of lug 22 or recess 21, further increases rack cast aluminium body 1 and middle takeover 2 frictional resistance on mating surface, prevents that middle takeover 2 from appearing becoming flexible at the steering gear during operation, influences the joint strength between the spare part to influence steering gear reliability, increased steering gear suitable motorcycle type, can satisfy the motorcycle type that front axle full load is less than or equal to 930KG, reduced steering gear cost, adaptation market needs.

In a further embodiment, the side wall of the first end of the intermediate adapter tube 2 is recessed inwards to form a groove 21. The connection strength between the middle connecting pipe 2 and the rack cast aluminum body 1 is increased by the arrangement of the grooves 21.

In a further embodiment, the groove 21 is a spiral groove, and the spiral groove is circumferentially disposed on the outer wall of the intermediate connection pipe 2. The spiral groove provided around can further increase the connection strength between the intermediate connection pipe 2 and the rack cast aluminum body 1.

In further embodiments, the cross section of the groove 21 is triangular, trapezoidal, arc-shaped or rectangular. In other embodiments, the cross-section of the recess 21 may be pentagonal, hexagonal, etc.

In a further embodiment, the side wall of the first end of the intermediate adapter tube 2 protrudes outwards to form a bump 22. The connection strength between the middle connecting pipe 2 and the rack cast aluminum body 1 is increased by the arrangement of the grooves 21.

In a further embodiment, the protrusion 22 is a spiral protrusion 22, and the spiral protrusion 22 is circumferentially disposed on the outer wall of the intermediate connection pipe 2. The spiral groove provided around can further increase the connection strength between the intermediate connection pipe 2 and the rack cast aluminum body 1.

In further embodiments, the cross-section of the bump 22 is triangular, trapezoidal, curved, or rectangular. In other embodiments, the cross-section of the recess 21 may be pentagonal, hexagonal, etc.

Example 2

This embodiment differs from embodiment 1 in that: the outer wall of the first end of the intermediate connection tube 2 is recessed inwards to form a groove 21, and the embodiment is not provided with a bump 22, and other details are not repeated. The friction resistance of the matching surfaces of the rack cast aluminum body 1 and the middle connecting pipe 2 is enhanced through the arrangement of the grooves 21.

Example 3

This embodiment differs from embodiment 1 in that: the outer wall of the first end of the intermediate connection tube 2 protrudes outwards to form a bump 22", and the recess 21 is not provided in this embodiment, and other details are not repeated. The friction resistance of the matching surfaces of the rack cast aluminum body 1 and the middle connecting pipe 2 is enhanced by the arrangement of the convex blocks 22.

Example 4

An automobile steering gear comprises the steering gear shell. The stability of the steering gear can be further enhanced through the arrangement of the steering gear shell, and the steering gear can be suitable for various vehicle types.

In the description of the present specification, a description referring to terms "one embodiment," "some 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art, provided that they meet the objectives of the utility model, such as: different combinations of specific embodiments, different combinations of distinguishing features.

Claims (8)

1. The utility model provides a steering gear casing, includes rack cast aluminum body, middle takeover and adapter sleeve, middle takeover first end with rack cast aluminum body connects, middle takeover second end with adapter sleeve connects, its characterized in that: the outer wall of the first end of the middle connecting pipe is inwards sunken to form a groove and/or the outer wall of the first end of the middle connecting pipe is outwards protruded to form a convex block.

2. A steering gear housing according to claim 1, wherein: the side wall of the first end of the intermediate adapter tube is recessed inwards to form a groove.

3. A steering gear housing according to claim 2, wherein: the groove is a spiral groove, and the spiral groove is arranged on the outer wall of the middle connecting pipe in a surrounding mode.

4. A steering gear housing according to claim 2, wherein: the cross section of the groove is triangular, trapezoidal, arc-shaped or rectangular.

5. A steering gear housing according to claim 1, wherein: the side wall of the first end of the middle connecting pipe protrudes outwards to form a convex block.

6. A steering gear housing according to claim 5, wherein: the lug adopts a spiral lug, and the spiral lug is arranged around the outer wall of the middle connecting pipe.

7. A steering gear housing according to claim 5, wherein: the cross section of the convex block is triangular, trapezoidal, arc-shaped or rectangular.

8. An automobile steering gear, characterized in that: comprising a steering gear housing according to any one of claims 1-7.