A maintenance-free thrust washer structure for heavy-duty mining front axle steering knuckle
By adopting maintenance-free thrust gasket structure on the steering knuckle of the front axle for heavy-duty mining, the problems of traditional thrust bearings in the application of heavy-duty mining front axle for heavy-duty mining are solved, and more uniform stress and higher vehicle reliability are achieved.
Patent Information
- Application Number
- CN202411605778.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-04-01
AI Technical Summary
Traditional thrust bearing structures have problems such as space limitations, high failure rate and high maintenance costs in heavy-duty mining front axle applications.
The maintenance-free thrust gasket structure is adopted, including a cover plate, a nylon bushing, a steel gasket and a nylon gasket. It is fixedly connected to the steering joint through the cover plate. The nylon bushing cooperates with the lower middle hole of the steering joint to form a closed space to reduce friction loss and bear axial load.
It achieves a more uniform stress, improves the stability and reliability of vehicle driving, reduces weight and installation costs, and avoids later maintenance and maintenance needs.
Smart Images
Figure CN119737448A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of mining vehicle axles, in particular to a maintenance-free thrust washer structure of a heavy-load mining front axle steering knuckle. Background Art
[0002] Thrust washer is one of the main parts on the steering axle of the car. It can make the car run stably and transmit the driving direction sensitively. Its function is to replace the thrust bearing, bear the front load of the car, support and drive the front wheel to rotate around the kingpin to make the car turn. The main structure is the traditional thrust bearing structure.
[0003] The conventional thrust bearing structure is to install the thrust bearing at the upper plane 8 of the steering knuckle (see Figure 1 ); The existing problems are: 1. Due to limited space, thrust bearings are generally non-standard bearings and are expensive; 2. When used for heavy-loaded mining front axles, due to space limitations, the thrust bearing design size is limited and the thrust bearing failure rate is very high. Summary of the invention
[0004] The object of the present invention is to overcome the shortcomings of the above-mentioned prior art and to provide a maintenance-free thrust washer for a heavy-duty mining front axle steering knuckle.
[0005] The technical solution provided by the present invention is: a maintenance-free thrust washer structure for a heavy-duty mining front axle steering knuckle, comprising a cover plate and a nylon bushing, wherein a groove is arranged in the middle of the cover plate, the groove corresponds to the middle hole at the lower part of the steering knuckle, and the nylon bushing is located in the middle hole at the lower part of the steering knuckle; the cover plate is fixedly connected to the steering knuckle; the special feature is that a steel gasket is arranged in the middle groove of the cover plate, and a nylon gasket is arranged on the steel gasket; an oil seal is arranged at the top end of the nylon bushing, and the nylon bushing and the oil seal are located in the middle hole at the lower part of the steering knuckle.
[0006] Furthermore, the steel gasket and nylon gasket are flat gasket structures.
[0007] The beneficial effects of the present invention are as follows: 1. A maintenance-free thrust washer structure is used to replace the traditional non-standard thrust bearing structure, which results in more uniform force, better vehicle driving stability and higher reliability; 2. The present invention is light in weight, easy and quick to install, and low in cost, and does not require maintenance during later use. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of an existing non-standard thrust bearing structure; Figure 2 It is a schematic diagram of the structure of the present invention; Figure 3 It is a schematic diagram of the steering knuckle structure of the present invention; Figure 4 It is a schematic diagram of the cover plate structure of the present invention; Figure 5 It is a schematic diagram of the bushing structure of the present invention; Figure 6 It is a schematic diagram of the structure of the nylon gasket and the steel gasket of the present invention.
[0009] In the figure: 1, steering knuckle, 2, cover plate, 3, bushing, 4, oil seal, 5, nylon gasket, 6, steel gasket, 7, bolt, 8, upper plane of steering knuckle. DETAILED DESCRIPTION
[0010] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings.
[0011] like Figure 2 , 3 , 4, 5, 6, a maintenance-free thrust washer structure for a heavy-duty front axle steering knuckle for mining, comprising a cover plate 2, a nylon bushing 3, an oil seal 4, a nylon gasket 5, a steel gasket 6, and a bolt 7; a groove is provided in the middle of the cover plate 2, and the groove corresponds to the middle hole at the lower part of the steering knuckle 1; a steel gasket 6 is installed in the middle groove of the cover plate 2, and a nylon gasket 5 is installed on the steel gasket 6, and the steel gasket 6 and the nylon gasket 5 are a flat gasket structure; a nylon bushing 3 is installed in the middle hole at the lower part of the steering knuckle 1, and an oil seal 4 is arranged at the top end of the nylon bushing 3, the nylon bushing 3 and the oil seal 4 are located in the middle hole at the lower part of the steering knuckle 1, and the nylon bushing 3 is a cylinder with an inner hole, and the inner hole cooperates with the kingpin; a threaded hole is processed on the upper end face of the cover plate 2, and is fixedly connected to the threaded hole at the lower end face of the steering knuckle 1 by a bolt 7.
[0012] The present invention discloses a maintenance-free thrust washer structure for a heavy-duty mining front axle steering knuckle. The working principle is as follows: when the front axle is working, under the action of the oil seal, a relatively closed space is formed at the lower part of the steering knuckle, which can effectively prevent the entry of external mud, water and dust. In the process of the steering knuckle swinging back and forth around the kingpin, the nylon washer and the steel washer play the role of reducing friction loss of the thrust bearing and bearing the axial load.
[0013] It should be understood that the technical features not elaborated in detail in this specification belong to the prior art. Although the implementation methods of the present invention are described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific implementation methods, which are merely illustrative and not restrictive. Ordinary technicians in this field can make more forms under the enlightenment of the present invention without departing from the scope of protection of the present invention and the claims, which are all within the protection scope of the present invention.
Claims
1. A maintenance-free thrust washer structure for a heavy-duty front axle steering knuckle for mining, comprising a cover plate (2) and a nylon bushing (3), wherein a groove is provided in the middle of the cover plate (2), the groove corresponds to a middle hole at the lower part of the steering knuckle (1), and the nylon bushing (3) is located in the middle hole at the lower part of the steering knuckle (1); the cover plate (2) is fixedly connected to the steering knuckle (1); and the characteristics are as follows: A steel gasket (6) is arranged in the middle groove of the cover plate (2), and a nylon gasket (5) is arranged on the steel gasket (6); an oil seal (4) is arranged at the top end of the nylon bushing (3), and the nylon bushing (3) and the oil seal (4) are located in the middle hole at the lower part of the steering knuckle (1).
2. A heavy-duty mining front axle steering knuckle maintenance-free thrust washer structure according to claim 1, characterized in that: The steel gasket (6) and the nylon gasket (5) are flat gasket structures.