Wear-resistant and shock-resistant universal joint bearing for steering column of light truck

Abstract

The utility model provides a wear-resistant and shock-resistant universal joint bearing for a steering column of a light truck, and belongs to the technical field of automobile manufacturing, and the universal joint comprises a cross shaft, a universal joint shaft shell, universal joint rubber, a universal joint buffer piece and a universal joint roller pin. Wherein the cross shaft comprises a plurality of shaft arms; the plurality of universal joint shaft housings are respectively arranged on the shaft arms; the universal joint rubber is arranged between each universal joint shaft shell and the cross shaft and is used for sealing and dust prevention between each universal joint shaft shell and the cross shaft; the universal joint buffering pieces are arranged between the shaft arms and the universal joint shaft shells and used for preventing abnormal sound caused by direct contact and collision between the shaft arms and the universal joint shaft shells; and the plurality of universal joint roller pins are arranged between each universal joint shaft shell and each shaft arm and are used for enabling each universal joint shaft shell to move. The universal joint can prevent abnormal sound, multi-aspect flexible transmission of the steering column is achieved, and transmission stability and continuity of the steering column are improved.

Description

Technical Field

[0001] This application relates to the field of automotive manufacturing technology, and more specifically, to a wear-resistant and shock-resistant universal joint bearing for a light truck steering column. Background Technology

[0002] The steering column is the mechanism that connects the vehicle's steering wheel and steering gear, transmitting torque between them. The upper and lower sections of the steering column are connected by two forks and a universal joint. If the universal joint is pressed into the fork hole, there may be a small axial or radial clearance, or axial or radial clearance may occur due to fatigue. When the vehicle is driving on a bumpy road, there will be relative movement between the universal joint housing and the fork hole. The driver will feel the movement inside the lower end of the steering column in the steering wheel, resulting in a poor driving experience.

[0003] The existing universal joint bearing has a small interference fit between the shaft housing and the cross hole of the fork, resulting in a small gap between the shaft housing and the fork hole. When the vehicle is driving on a bumpy road, there will be relative movement between the two, which will cause abnormal noise from the steering column.

[0004] Therefore, there is an urgent need for a universal joint bearing that can prevent abnormal noises, realize flexible transmission in multiple directions of the steering column, and improve the stability and continuity of transmission. Utility Model Content

[0005] This application aims to address at least one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, this application provides a wear-resistant and vibration-resistant universal joint bearing for a light truck steering column, which can prevent abnormal noise, realize multi-directional flexible transmission of the steering column, and improve transmission stability and continuity.

[0007] This application provides a wear-resistant and vibration-resistant universal joint bearing for a light truck steering column, comprising a cross shaft, a universal joint housing, universal joint rubber, universal joint buffer components, and universal joint needle rollers. The cross shaft includes multiple shaft arms; multiple universal joint housings are disposed on each shaft arm; multiple universal joint rubbers are disposed between each universal joint housing and the cross shaft for sealing and dust prevention between the two; multiple universal joint buffer components are disposed between each shaft arm and each universal joint housing to prevent direct contact and impact that could cause abnormal noise; and multiple universal joint needle rollers are disposed between each universal joint housing and each shaft arm to allow movement of each universal joint housing.

[0008] In some embodiments, four of each of the shaft arm, universal joint housing, universal joint rubber, universal joint buffer and universal joint needle roller are provided, divided into four groups, and distributed in a cross shape on the cross shaft.

[0009] In some embodiments, each universal joint housing is a hollow cylindrical shape, surrounding each shaft arm, and each universal joint needle roller is provided between each universal joint housing and each shaft arm.

[0010] In some embodiments, one end of the rubber of each universal joint is disposed inside the universal joint housing, and the other end is rotatably connected to each cross shaft.

[0011] In some embodiments, the cross shaft is provided with a groove that allows the universal joint rubber to rotate and engage.

[0012] In some embodiments, each universal joint housing is made of alloy steel; each universal joint buffer is made of polyurethane.

[0013] In some embodiments, one end of each universal joint buffer is embedded inside each shaft arm, and the other end is connected to the inner end face of each universal joint housing.

[0014] In some embodiments, the outer end face of each universal joint needle roller is connected to the inner end face of each universal joint housing, and the inner end face of each universal joint needle roller is connected to the outer end face of each shaft arm.

[0015] In some embodiments, each universal joint needle roller consists of a group of multiple needle rollers, and the needle rollers are elongated cylindrical in shape.

[0016] In some embodiments, the universal joint bearing further includes: a spline fork, fixedly connected to two opposite universal joint housings; and a sleeve fork, fixedly connected to two opposite universal joint bearings; the spline fork and the sleeve fork are alternately distributed on the outside of the cross shaft.

[0017] Compared with the prior art, the technical solution provided in this application includes at least the following technical effects:

[0018] This application provides a wear-resistant and vibration-resistant universal joint bearing for a light truck steering column, which prevents abnormal noises, enables flexible multi-directional transmission of the steering column, and improves transmission stability and continuity. The universal joint has multiple shaft arms arranged perpendicularly to each other to form a cross shape, allowing the universal joint to transmit power flexibly in multiple directions. The universal joint housing is made of alloy steel, which has high strength and minimal deformation after riveting, ensuring a tight fit between the housing and the shaft arms and reducing torsional vibration. A universal joint rubber mat is placed between the housing and the universal joint to absorb axial and radial impacts, isolate direct friction, and reduce the wear rate. The universal joint buffer is made of polyurethane and embedded in the inner hole of the shaft arm, providing buffer space and preventing direct contact between the shaft arm and housing from causing abnormal noises and wear. The universal joint needle rollers provide support and guidance for the movement of the housing, allowing it to rotate flexibly relative to the universal joint, improving transmission stability.

[0019] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall structure of the universal joint bearing according to some embodiments of this application;

[0022] Figure 2 Exploded perspective view of a universal joint bearing according to some embodiments of this application;

[0023] Figure 3 Exploded plan view of a universal joint bearing according to some embodiments of this application;

[0024] Figure 4 This is a schematic diagram of the spline fork and sleeve fork according to some embodiments of this application.

[0025] in, Figures 1 to 4 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0026] 100. Cross shaft; 200. Universal joint housing; 300. Universal joint rubber; 400. Universal joint buffer; 500. Universal joint needle roller; 600. Spline fork; 700. Sleeve fork. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0029] The following reference Figures 1 to 4 This application describes a wear-resistant and shock-resistant universal joint bearing for a light truck steering column, provided according to some embodiments.

[0030] like Figure 2As shown, the wear-resistant and shock-resistant light truck steering column universal joint bearing provided according to some embodiments of this application includes a cross shaft 100, a universal joint housing 200, a universal joint rubber 300, a universal joint buffer 400, and universal joint needle rollers 500. The cross shaft 100 includes multiple shaft arms; multiple universal joint housings 200 are disposed on each shaft arm; multiple universal joint rubbers 300 are disposed between each universal joint housing 200 and the cross shaft 100 for sealing and dust prevention between them; multiple universal joint buffers 400 are disposed between each shaft arm and each universal joint housing 200 to prevent direct contact and impact between the shaft arm and the universal joint housing 200, thus preventing abnormal noise; and multiple universal joint needle rollers 500 are disposed between each universal joint housing 200 and each shaft arm to allow movement of each universal joint housing 200.

[0031] In this embodiment, the cross shaft 100 has multiple shaft arm structures, which are perpendicularly distributed to form a cross shape; the universal joint housing 200 is respectively installed on each shaft arm and rotatably connected to the shaft arm; the universal joint rubber 300 is disposed on the inner end face of the universal joint housing 200 and rotatably connected to the cross shaft 100. Its main function is to achieve a seal between the universal joint housing 200 and the cross shaft 100, preventing dust, moisture and other impurities from entering the universal joint; the universal joint buffer 400 is press-fitted into the inner hole of the shaft arm, and one end contacts the inner end face of the universal joint housing 200, providing a buffer space between the shaft arm and the universal joint housing 200 to prevent direct contact and impact from causing abnormal noise and wear; the universal joint needle roller 500 provides support and guidance for the movement of the universal joint housing 200, so that the universal joint housing 200 can rotate flexibly relative to the cross shaft 100.

[0032] In some possible embodiments, such as Figure 1-3 As shown, there are four of each of the shaft arm, universal joint housing 200, universal joint rubber 300, universal joint buffer 400 and universal joint needle roller 500, which are arranged in four groups and distributed in a cross shape on the cross shaft 100.

[0033] In this embodiment, the shaft arm, universal joint housing 200, universal joint rubber 300, universal joint buffer 400, and universal joint needle roller 500 are arranged in a cross shape, which enables the universal joint to flexibly transmit power in multiple directions. During the driving of the light truck, no matter what steering angle the vehicle is in, the universal joint can effectively transmit power, ensure the normal operation of the steering system, and improve the vehicle's handling performance and driving stability.

[0034] In some possible embodiments, such as Figure 2 , Figure 3As shown, each universal joint housing 200 is a hollow cylindrical shape, surrounding each shaft arm, and each universal joint needle roller 500 is provided between each universal joint housing 200 and each shaft arm.

[0035] In this embodiment, the universal joint housing 200 is mounted around the outside of the shaft arm, enabling the universal joint housing 200 to rotate stably around the shaft arm. The tight fit between the housing and the shaft arm reduces torsional vibration and improves the response speed and accuracy of the steering system.

[0036] In some possible embodiments, such as Figure 2 As shown, one end of each universal joint rubber 300 is disposed on the inner side of each universal joint housing 200, and the other end is rotatably connected to each cross shaft 100.

[0037] In this embodiment, the universal joint rubber 300 is disposed at the connection between the universal joint housing 200 and the cross shaft 100 to prevent dust and moisture from entering the interior of the universal joint. The universal joint rubber 300 can absorb the axial and radial impact of the cross shaft 100, reducing the vibration transmitted to the steering wheel. At the same time, the universal joint rubber 300 isolates the direct friction between the universal joint housing 200 and the cross shaft 100, thereby reducing the wear rate.

[0038] In some possible embodiments, such as Figure 2 As shown, the cross shaft 100 is provided with a groove that allows the universal joint rubber 300 to rotate and engage.

[0039] In this embodiment, the slot ensures that the universal joint rubber 300 and the cross shaft 100 do not slide relative to each other during rotation, preventing the rubber from twisting or falling off, and the slot can improve the sealing effect of the universal joint rubber 300.

[0040] In some possible embodiments, each universal joint housing 200 is made of alloy steel; each universal joint buffer 400 is made of polyurethane.

[0041] In this embodiment, the universal joint housing 200 is made of alloy steel, which has higher strength than ordinary carbon steel and can greatly reduce the deformation of the universal joint housing 200 after riveting; the universal joint buffer 400 is made of polyurethane material, which can absorb impact.

[0042] In some possible embodiments, such as Figure 2 As shown, one end of each universal joint buffer 400 is embedded inside each shaft arm, and the other end is connected to the inner end face of each universal joint housing 200.

[0043] In this embodiment, the universal joint buffer 400 is used to supplement the gap between the cross shaft 100 and the universal joint housing 200, reduce the axial clearance, thereby facilitating the control of the universal joint torsional clearance and greatly reducing the probability of abnormal noise during movement.

[0044] In some possible embodiments, such as Figure 2 As shown, the outer end face of each universal joint needle roller 500 is connected to the inner end face of each universal joint housing 200, and the inner end face of each universal joint needle roller 500 is connected to the outer end face of each shaft arm.

[0045] In this embodiment, the universal joint needle roller 500 provides power transmission to the universal joint housing 200, improving the rotational stability of the universal joint housing 200, thereby improving the rotational smoothness of the steering column.

[0046] In some possible embodiments, such as Figure 2 As shown, each universal joint needle roller 500 consists of multiple needle rollers forming a needle roller group, and the needle rollers are slender cylindrical in shape.

[0047] In this embodiment, a single needle roller assembly contains multiple needle rollers arranged in a circular array along the universal joint axis, which can evenly distribute the load and ensure transmission stability.

[0048] In some possible embodiments, such as Figure 4 As shown, the universal joint bearing also includes: a spline fork 600, which is fixedly connected to two opposite universal joint housings 200; a sleeve fork 700, which is fixedly connected to two opposite universal joint housings 200; the spline fork 600 and the sleeve fork 700 are staggered on the outside of the cross shaft 100.

[0049] In this embodiment, the spline fork 600 and the sleeve fork 700 are staggered at 90° on the outside of the cross shaft 100, that is, the spline fork 600 and the sleeve fork 700 are riveted to the outer end face of the universal joint housing 200 respectively, which improves the connection stability and thus connects with the steering tube and steering column for stable transmission.

[0050] When this wear-resistant and vibration-resistant light truck steering column universal joint bearing is in operation, the spline fork 600 and sleeve fork 700 are connected to the universal joint housing 200. The spline fork 600 and sleeve fork 700 transmit external forces to the cross shaft 100. The cross shaft 100 drives the universal joint housing 200 to rotate through the universal joint needle roller 500. The universal joint rubber 300 absorbs axial and radial impacts to prevent vibration from being transmitted to the steering wheel. The universal joint buffer 400 provides buffer space to reduce direct contact between the shaft arm and the housing. Since the shaft arm, universal joint housing 200, universal joint rubber 300, universal joint buffer 400 and universal joint needle roller 500 are arranged in a cross shape, the universal joint can flexibly transmit power in multiple directions, ensuring the continuity and stability of power transmission during the steering process of the light truck.

[0051] In this application, it should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The term "multiple" refers to two or more, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0055] In this application, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A wear and shock resistant light truck steering column universal joint bearing, characterized by, Comprise: A cross shaft (100) comprising a plurality of shaft arms; A plurality of universal joint shaft housings (200) arranged on each of the shaft arms; A plurality of universal joint rubbers (300) arranged between each of the universal joint shaft housings (200) and the cross shaft (100) for sealing and dustproof between each of the universal joint shaft housings (200) and the cross shaft (100); A plurality of universal joint buffers (400) arranged between each of the shaft arms and each of the universal joint shaft housings (200) for preventing each of the shaft arms and the universal joint shaft housings (200) from directly contacting and knocking to produce abnormal sound; A plurality of universal joint rollers (500) arranged between each of the universal joint shaft housings (200) and each of the shaft arms for providing movement of each of the universal joint shaft housings (200).

2. The universal joint bearing according to claim 1, wherein: The shaft arms, the universal joint shaft housings (200), the universal joint rubbers (300), the universal joint buffers (400) and the universal joint rollers (500) are respectively provided with 4 groups, which are cross-distributed on the cross shaft (100).

3. The universal joint bearing according to claim 2, wherein: Each of the universal joint shaft housings (200) is hollow and surrounds each of the shaft arms, and each of the universal joint shaft housings (200) and each of the shaft arms is provided with each of the universal joint rollers (500).

4. The universal joint bearing according to claim 2, wherein: Each of the universal joint rubbers (300) is arranged at one end of the inner side of each of the universal joint shaft housings (200) and the other end is rotatably connected with each of the cross shafts (100).

5. The universal joint bearing according to claim 1, wherein: The cross shaft (100) is provided with a clamping groove allowing the universal joint rubber (300) to rotate and cooperate.

6. The universal joint bearing according to claim 3, wherein: Each of the universal joint shaft housings (200) is made of alloy steel; Each of the universal joint buffers (400) is made of polyurethane.

7. The universal joint bearing according to claim 5, wherein: One end of each of the universal joint buffers (400) is embedded in the inside of each of the shaft arms, and the other end is connected with the inner end face of each of the universal joint shaft housings (200).

8. The universal joint bearing according to claim 2, wherein: The outer end face of each of the universal joint rollers (500) is connected with the inner end face of each of the universal joint shaft housings (200), and the inner end face of each of the universal joint rollers (500) is connected with the outer end face of each of the shaft arms.

9. The universal joint bearing according to claim 8, wherein: Each of the universal joint rollers (500) is composed of a plurality of rollers to form a roller group, and the rollers are in the shape of an elongated cylinder.

10. The gimbal bearing of claim 1, wherein, The universal joint bearing further comprises: A spline yoke (600) fixedly connected with two opposite universal joint shaft housings (200); A sleeve yoke (700) fixedly connected with two opposite universal joint shaft housings (200); The spline yoke (600) and the sleeve yoke (700) are staggered outside the cross axle (100).

Images