Steering gear shell, automobile steering gear and automobile

Abstract

According to the steering gear shell, the automobile steering gear and the automobile, the steering gear shell comprises a rack installation part used for installing a rack and a plurality of machine head gear installation parts, the machine head gear installation parts are installed on the rack installation part and connected into a whole, and the machine head axes of the machine head gear installation parts are sequentially arranged at intervals in the first direction; and each machine head gear mounting part is used for mounting a machine head gear. Due to the fact that the steering gear shell is provided with the multiple machine head gear installation parts with the machine head axes sequentially arranged at intervals, when the machine head gears assembled in the machine head gear installation parts are matched with the racks assembled in the rack installation parts in a meshed mode, different modulus can be achieved; the steering gear shell can be applied to automobile steering gears with different machine head gear and rack modules, so that the steering gear shell can be matched with the automobile steering gears of different automobile types, generalization of the steering gear shell is achieved, and the steering gear shell has the function of reducing cost.

Description

Technical Field

[0001] The present application relates to the technical field related to automobile parts, and in particular to a steering gear housing, an automobile steering gear and an automobile. Background Art

[0002] The automobile steering gear is an important actuator for the vehicle to complete the steering function. It connects the steering transmission mechanism and the wheels, and feeds back the driver's steering intention to the corresponding steering wheel in a timely and accurate manner. The automobile steering gear usually includes a steering gear housing, a head gear and a rack mounted on the steering gear housing, and the head gear and the rack mesh with each other. Among them, the adjustment of the modulus when the head gear and the rack mesh with each other will affect the linear angle transmission ratio of the whole vehicle, and further affect the steering sensitivity of the vehicle using the automobile steering gear.

[0003] At present, the modulus adjustment of the head gear and the rack in the existing automobile steering gear is limited. If the modulus adjustment is too large, the misalignment between the head gear and the steering gear housing is too large, the structural reserve is limited, and the force and durability performance deteriorate. Therefore, in order to adapt to different models, the existing automobile steering gear usually needs to be newly developed and prepared separately for the steering gear housing. Since the steering gear housing generally adopts a cast aluminum alloy structure, the mold cost is high and the process flow is complicated, which will increase the cost of the enterprise. Utility Model Content

[0004] In view of this, it is necessary to provide a steering gear housing, a vehicle steering gear and a vehicle that can solve the above-mentioned technical problems.

[0005] In order to solve the above technical problems, this application provides the following technical solutions:

[0006] A steering gear housing is used in an automobile steering gear; it is characterized in that the steering gear housing comprises:

[0007] A rack mounting portion, used for mounting the rack;

[0008] A plurality of machine head gear mounting parts are mounted on the rack mounting part and connected as a whole, and the machine head axis of each of the machine head gear mounting parts is arranged in sequence along the first direction at intervals, wherein each of the machine head gear mounting parts is used to mount a machine head gear.

[0009] It can be understood that since the steering gear housing has a plurality of head gear mounting parts which are arranged in sequence along the head axis, the head gear installed in each head gear mounting part and the rack installed in the rack mounting part can have different modules when meshing with each other, that is, the steering gear housing can be applied to automobile steering gears with different head gear and rack modules, so that the steering gear housing can be adapted to automobile steering gears of different models, and the steering gear housing can be made universal, which has the effect of reducing costs.

[0010] In one embodiment, a plurality of the machine head gear mounting portions are arranged overlappingly in sequence along the first direction.

[0011] It can be understood that arranging the multiple head gear mounting parts in an overlapping manner in sequence along the first direction can reduce the overall volume of the multiple head gear mounting parts, thereby reducing the installation space required for assembling the steering gear housing.

[0012] In one embodiment, the number of the nose gear mounting parts is configured to be three.

[0013] It can be understood that the number of the head gear mounting parts is configured to be three, so that the steering gear housing can be adapted to the steering gears of three different types of automobiles.

[0014] In one embodiment, a plurality of the machine head gear mounting parts are connected to form a solid structure, and each of the machine head gear mounting parts can be processed and formed with a machine head gear mounting hole, and the machine head gear mounting hole can be used for inserting the machine head gear.

[0015] In one embodiment, the steering gear housing is configured as an integral aluminum alloy casting.

[0016] It is understandable that the steering gear housing is configured as an integrated aluminum alloy casting, so that the steering gear housing can be manufactured in one piece through a mold, which has the effect of reducing costs and can achieve lightweighting of the steering gear housing.

[0017] In one of the embodiments, the steering gear housing is further formed with a pre-tightening valve mounting portion, and the pre-tightening valve mounting portion is used for mounting a pre-tightening valve.

[0018] It can be understood that by integrating the pre-tightening valve mounting portion on the steering gear housing, the pre-tightening valve can be installed on the steering gear housing, and the pre-tightening valve can be used to tighten the machine head gear and the rack.

[0019] The present application also claims protection for an automobile steering gear, comprising a rack, a head gear and the steering gear housing described above, wherein the rack is mounted on the rack mounting portion, and the head gear is selectively mounted on the head gear mounting portion and meshes with the rack;

[0020] Wherein, the modules of the machine head gear installed on each of the machine head gear mounting parts and the rack when they are meshed are different.

[0021] It can be understood that by selectively installing one of the head gears on the head gear mounting portion and meshing with the rack, and the modules between the head gear and the rack are different when the two are meshing, it can be specifically realized that the steering gear housing can be applied to automobile steering gears with different head gear and rack modules, so that the steering gear housing can be adapted to automobile steering gears of different models.

[0022] In one embodiment, the automobile steering gear further comprises two rotating connecting members, and the head gear can be rotatably connected to the steering gear housing through the two rotating connecting members;

[0023] Wherein, the two rotating connecting parts are distributed on both sides of the rack along the axial direction of the machine head gear.

[0024] It can be understood that two rotating connecting parts are arranged between the nose gear and the steering gear housing, so that the nose gear is rotatably mounted on the steering gear housing.

[0025] In one embodiment, the automobile steering gear further comprises a sealing cover, which is sleeved on the head gear and is sealed with the steering gear housing.

[0026] It can be understood that the sealing cover mounted on the head gear is sealed and connected to the steering gear housing, which can seal the steering gear housing and prevent grease leakage.

[0027] The present application also seeks protection for a car comprising the above-mentioned car steering gear.

[0028] Due to the application of the above solution, the present application has the following advantages compared with the prior art:

[0029] The steering gear housing, automobile steering gear and automobile sought to be protected in the present application have a plurality of head gear mounting parts which are arranged in sequence along the head axis, so that the head gears installed in each head gear mounting part and the racks installed in the rack mounting part can have different modules when meshing with each other, that is, the steering gear housing can be applied to automobile steering gears with different head gear and rack modules, thereby making the steering gear housing adaptable to automobile steering gears of different models and realizing the standardization of the steering gear housing, which has the effect of reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the structure of a steering gear housing provided in one embodiment of the present application;

[0032] Figure 2 A schematic diagram of the structure of a vehicle steering gear provided in one embodiment of the present application;

[0033] Figure 3 A schematic diagram of a partial assembly of a vehicle steering gear provided in one embodiment of the present application;

[0034] Figure 4 A partial exploded view of a vehicle steering gear provided in one embodiment of the present application.

[0035] Figure numerals: 100, automobile steering gear; 10, steering gear housing; 101, machine head axis; 11, rack mounting part; 12, machine head gear mounting part; 13, preload valve mounting part; 20, rack; 30, machine head gear; 40, preload valve; 50, rotating connecting part; 60, cover. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0041] The steering gear housing 10 for which protection is sought in the present application is applied to a steering gear 100 of an automobile.

[0042] like Figures 1 to 4 As shown, a steering gear housing 10 provided in an embodiment of the present application comprises a rack mounting portion 11 for mounting a rack 20 and a plurality of head gear mounting portions 12, wherein the plurality of head gear mounting portions 12 are mounted on the rack mounting portion 11 and connected as a whole, and a head axis 101 of each head gear mounting portion 12 is arranged in sequence along a first direction and spaced apart from each other, wherein each head gear mounting portion 12 is used for mounting a head gear 30 respectively.

[0043] It can be understood that since the steering gear housing 10 has multiple head gear mounting parts 12 arranged in sequence with the head axis 101, the head gear 30 installed in each head gear mounting part 12 and the rack 20 installed in the rack mounting part 11 can have different modules when meshing, that is, the steering gear housing 10 can be applied to automobile steering gears 100 with different modules of head gears 30 and racks 20, so that the steering gear housing 10 can be adapted to automobile steering gears 100 of different models, and the steering gear housing 10 can be made universal, which has the effect of reducing costs.

[0044] In one embodiment, the steering gear housing 10 is configured as an integrated aluminum alloy casting. In other words, the steering gear housing 10 is configured as an integrated aluminum alloy casting, so that the steering gear housing 10 can be prepared in one piece through a mold, which has the effect of reducing costs and can achieve lightweight steering gear housing 10.

[0045] like Figure 1 , Figure 2 As shown, in one embodiment, a plurality of machine head gear mounting portions 12 are connected to form a solid structure, and each machine head gear mounting portion 12 can be processed and formed with a machine head gear mounting hole (not shown), into which the machine head gear 30 can be inserted.

[0046] It can be understood that the head gear mounting part 12 of the steering gear housing 10 of the present application is designed with a structural reservation in the initial state. According to the requirements of different vehicle models, one of the multiple head gear mounting parts 12 can be selected for punching and a head gear mounting hole can be formed. The head gear 30 is inserted into the corresponding head gear mounting hole and meshes with the rack 20. In this way, the head gear 30 assembled in the head gear mounting part 12 and the rack 20 assembled in the rack mounting part 11 can have different modules when they mesh. At the same time, it can ensure that the head gear 30 and the steering gear housing 10 are coaxial, ensuring the force and durability performance.

[0047] like Figure 1 As shown, in one embodiment, a plurality of head gear mounting parts 12 are arranged in an overlapping manner in sequence along the first direction. In other words, the plurality of head gear mounting parts 12 are arranged in an overlapping manner in sequence along the first direction, so that the overall volume of the plurality of head gear mounting parts 12 can be reduced, thereby reducing the installation space required for the assembly of the steering gear housing 10.

[0048] like Figure 1 , Figure 2 As shown, in one embodiment, the number of the head gear mounting parts 12 is configured as three. That is to say, the number of the head gear mounting parts 12 is configured as three, so that the steering gear housing 10 can be adapted to three different types of vehicle steering gears 100. Of course, for those skilled in the art, the number of the head gear mounting parts 12 is not limited to three, and the number of the head gear mounting parts 12 can also be configured as two, four, etc. The specific number can be set according to actual use requirements, which will not be elaborated here.

[0049] like Figure 1 , Figure 2As shown, in one embodiment, the steering gear housing 10 is further formed with a pre-tightening valve mounting portion 13, and the pre-tightening valve mounting portion 13 is used to mount the pre-tightening valve 40. That is, by integrating the pre-tightening valve mounting portion 13 on the steering gear housing 10, the steering gear housing 10 can be mounted with the pre-tightening valve 40, and the pre-tightening valve 40 can be used to press the head gear 30 and the rack 20.

[0050] like Figures 2 to 4 As shown, the present application also provides an automobile steering gear 100, comprising a rack 20, a head gear 30 and the above-mentioned steering gear housing 10, wherein the rack 20 is mounted on the rack mounting portion 11, and the head gear 30 is selectively mounted on the head gear mounting portion 12 and meshed with the rack 20; wherein the modules of the head gear 30 mounted on each head gear mounting portion 12 and meshed with the rack 20 are different. In other words, by selectively mounting one of the head gears 30 on the head gear mounting portion 12 and meshing with the rack 20, and the modules of the head gear 30 and the rack 20 are different when they mesh, the steering gear housing 10 can be applied to automobile steering gears 100 with different modules of the head gear 30 and the rack 20, so that the steering gear housing 10 can be adapted to automobile steering gears 100 of different models.

[0051] like Figure 3 , Figure 4 As shown, in one embodiment, the automobile steering gear 100 further includes two rotating connectors 50, and the head gear 30 can be rotatably connected to the steering gear housing 10 through the two rotating connectors 50; wherein the two rotating connectors 50 are distributed on both sides of the rack 20 along the axial direction of the head gear 30. That is, two rotating connectors 50 are provided between the head gear 30 and the steering gear housing 10, so that the head gear 30 is rotatably mounted on the steering gear housing 10. Here, the two rotating connectors 50 can be configured as bearings.

[0052] like Figure 3 , Figure 4 As shown, in one embodiment, the automobile steering gear 100 further includes a cover 60, which is mounted on the head gear 30 and is sealed to the steering gear housing 10. That is, the cover 60 mounted on the head gear 30 is sealed to the steering gear housing 10, which can seal the steering gear housing 10 and prevent grease leakage.

[0053] The present application also provides a car (not shown), comprising the car steering gear 100 described above.

[0054] In summary, the steering gear housing 10, automobile steering gear 100 and automobile that are requested to be protected in the present application, because the steering gear housing 10 has a plurality of head gear mounting parts 12 arranged in sequence with a head axis 101, so that the head gear 30 installed in each head gear mounting part 12 and the rack 20 installed in the rack mounting part 11 can have different modules when meshing, that is, the steering gear housing 10 can be applied to automobile steering gears 100 with different modules of head gears 30 and racks 20, so that the steering gear housing 10 can be adapted to automobile steering gears 100 of different models, and the steering gear housing 10 can be made universal, which has the effect of reducing costs.

[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A steering gear housing, used in an automobile steering gear; characterized in that: The steering gear housing (10) comprises: A rack mounting portion (11), used for mounting the rack (20); A plurality of machine head gear mounting parts (12) are mounted on the rack mounting part (11) and connected as a whole, and a machine head axis (101) of each of the machine head gear mounting parts (12) is arranged in sequence and spaced apart along a first direction, wherein each of the machine head gear mounting parts (12) is used to mount a machine head gear (30) respectively.

2. The steering gear housing according to claim 1, characterized in that: The plurality of machine head gear mounting parts (12) are arranged in an overlapping manner in sequence along the first direction.

3. The steering gear housing according to claim 2, characterized in that: The number of the machine head gear mounting parts (12) is configured to be three.

4. The steering gear housing according to claim 2, characterized in that: A plurality of the machine head gear mounting parts (12) are connected to form a solid structure, and each of the machine head gear mounting parts (12) can be processed and formed with a machine head gear mounting hole, and the machine head gear mounting hole can be used for inserting the machine head gear (30).

5. The steering gear housing according to claim 1, characterized in that: The steering gear housing (10) is configured as an integral aluminum alloy casting.

6. The steering gear housing according to claim 1, characterized in that: The steering gear housing (10) is also formed with a preload valve mounting portion (13), and the preload valve mounting portion (13) is used for mounting a preload valve (40).

7. An automobile steering gear, characterized in that: It comprises a rack (20), a head gear (30) and a steering gear housing (10) according to any one of claims 1 to 6, wherein the rack (20) is mounted on the rack mounting portion (11), and the head gear (30) is selectively mounted on the head gear mounting portion (12) and meshes with the rack (20); Wherein, the modules of the machine head gear (30) mounted on each machine head gear mounting portion (12) and the rack (20) are different when the two are meshed.

8. The automotive steering gear according to claim 7, characterized in that: The automobile steering gear (100) further comprises two rotating connecting members (50), and the head gear (30) can be rotatably connected to the steering gear housing (10) via the two rotating connecting members (50); Wherein, the two rotating connecting members (50) are distributed on both sides of the rack (20) along the axial direction of the machine head gear (30).

9. The automotive steering gear according to claim 7, characterized in that: The automobile steering gear (100) further comprises a sealing cover (60), wherein the sealing cover (60) is sleeved on the head gear (30) and is sealedly connected to the steering gear housing (10).

10. An automobile, characterized in that: An automobile steering gear (100) comprising any one of claims 7 to 9.

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