Loader drive axle wheel-side bearing clearance adjusting structure

By adopting a pre-tightening structure with thread fit in the side bearing of the loader drive axle wheel, the adjustment of the gasket is eliminated, the assembly process is simplified and the cost is reduced, and the problems of cumbersome assembly and complex material management in the prior art are solved, and the problem of Structural simplicity and reliability.

CN222351374UActive Publication Date: 2025-01-14LONGGONG FUJIAN QIAOXIANG CO LTD
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Patent Information

Application Number
CN202323561609.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-26
Publication Date
2025-01-14
Estimated Expiration
2033-12-26

AI Technical Summary

Technical Problem

In the existing loader drive axle wheel side bearing clearance adjustment structure, adjusting gaskets are used to control the bearing clearance, resulting in cumbersome assembly and complex material management, which increases production and maintenance costs.

Method used

The wheel-side bearing pre-tightening structure is adopted with threaded fit. The clearance between the right bearing and the left bearing is adjusted by the fixed torsion locking ring support disc. The adjustment gasket is eliminated, which simplifies the assembly process and reduces the workload of material management. .

Benefits of technology

It achieves the effect of simple and compact structure, convenient and efficient assembly, low production and maintenance costs and reliable operation, solves the problems of cumbersome assembly and material management, and reduces the production and maintenance costs of the drive axle.

✦ Generated by Eureka AI based on patent content.

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Abstract

A supporting shaft thread is arranged on the circumferential face of the left end of a supporting shaft, a supporting shaft locking notch is formed in the upper portion of the left end face of the supporting shaft, and an inner hole thread of a gear ring supporting disc and the supporting shaft thread are installed at the left end of the supporting shaft in a thread fit mode. The right end face of the gear ring supporting disc is attached to the left bearing. The locking gasket is fixed to the gear ring supporting disc through the upper screw and the lower screw, it is ensured that the locking gasket is clamped into the supporting shaft locking notch so that the effect of preventing the threads from loosening can be achieved, and a wheel edge bearing pre-tightening structure matched with the threads is formed. The hub reduction gear assembly is simple and compact in structure, convenient and efficient to assemble, low in manufacturing and maintenance cost and reliable in operation, and solves the problem that the manufacturing and maintenance cost of a drive axle is increased due to tedious assembly and material management when an adjusting gasket is adopted to control the bearing clearance of the hub reduction gear assembly in the prior art.
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Description

Technical Field

[0001] The utility model relates to the technical field of wheel side assemblies of loader drive axles, in particular to a clearance adjustment structure of wheel side bearings of loader drive axles. Background Art

[0002] Among the existing wheel reducer bearing clearance adjustment structures of loaders, there is a method of using an adjusting gasket to control the bearing clearance. This structure has the following disadvantages: using an adjusting gasket to control the bearing clearance of the wheel reducer assembly requires dimensional measurement for each assembly, and has high requirements for related dimensions. At the same time, it is necessary to add multiple specifications of adjusting gasket materials, which not only makes assembly cumbersome, but also increases the workload of material management, thereby increasing the manufacturing and maintenance costs of the drive axle. Summary of the invention

[0003] The purpose of the utility model is to solve the above defects and provide a loader drive axle wheel side bearing clearance adjustment structure which has a simple and compact structure, convenient and efficient assembly, low manufacturing and maintenance costs, and reliable operation, so as to solve the problem that the prior art uses adjusting gaskets to control the bearing clearance of the wheel side reducer assembly, which is complicated in assembly and material management and thus increases the manufacturing and maintenance costs of the drive axle.

[0004] To achieve the above purpose, the utility model loader driving axle wheel side bearing clearance adjustment structure comprises a wheel shell 1, a ring gear support plate 2, an upper screw 3, a stop washer 4, a lower screw 5, a support shaft 7, a right bearing 9 and a left bearing 10; the wheel shell 1 is assembled and supported on the support shaft 7 through the right bearing 9 and the left bearing 10; the left end circumferential surface of the support shaft 7 is provided with a support shaft thread 8, and the upper part of the left end surface of the support shaft 7 is provided with a support shaft stop notch 6, the inner hole thread of the ring gear support plate 2 and the support shaft thread 8 are installed on the left end of the support shaft 7 through thread matching, and the right end surface of the ring gear support plate 2 is fitted with the left bearing 10; the stop washer 4 is fixed to the ring gear support plate 2 by the upper screw 3 and the lower screw 5, and ensures that the stop washer 4 is stuck in the support shaft stop notch 6 to prevent the thread from loosening, so as to form a thread matching wheel side bearing preload structure.

[0005] The above-mentioned loader drive axle wheel side bearing clearance adjustment structure has the following technical characteristics and beneficial effects by optimizing the design on the original structure:

[0006] 1. The adjusting gasket in the prior art is eliminated, and a threaded wheel bearing pre-tightening structure is adopted. During assembly, the clearance between the right bearing 9 and the left bearing 10 can be ensured by torsionally locking the gear ring support plate 2, thereby improving the assembly performance of the drive axle, reducing the manufacturing and maintenance costs of the drive axle, and solving the problem of complicated assembly and material management in the prior art of using adjusting gaskets to control the bearing clearance of the wheel reducer assembly, thereby increasing the manufacturing and maintenance costs of the drive axle.

[0007] 2. Simple and compact structure, convenient and efficient assembly, low production and maintenance costs, and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 The utility model is a main sectional structural schematic diagram of a wheel side bearing clearance adjustment structure of a loader driving axle.

[0009] Figure numerals: wheel housing 1, ring gear support plate 2, upper screw 3, stop washer 4, lower screw 5, support shaft stop notch 6, support shaft 7, support shaft thread 8, right bearing 9, left bearing 10. DETAILED DESCRIPTION

[0010] The specific implementation method of the wheel side bearing clearance adjustment structure of the loader drive axle of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0011] Figure 1 As shown, the wheel bearing clearance adjustment structure of the loader drive axle of the utility model comprises a wheel shell 1, a ring gear support plate 2, an upper screw 3, a stop washer 4, a lower screw 5, a support shaft 7, a right bearing 9 and a left bearing 10; the wheel shell 1 is assembled and supported on the support shaft 7 through the right bearing 9 and the left bearing 10; the left end circumferential surface of the support shaft 7 is provided with a support shaft thread 8, and the upper part of the left end surface of the support shaft 7 is provided with a support shaft stop notch 6, the inner hole thread of the ring gear support plate 2 and the support shaft thread 8 are installed on the left end of the support shaft 7 through thread matching, and the right end surface of the ring gear support plate 2 is fitted with the left bearing 10; the stop washer 4 is fixed to the ring gear support plate 2 by the upper screw 3 and the lower screw 5, and ensures that the stop washer 4 is stuck in the support shaft stop notch 6 to prevent the thread from loosening, so as to form a thread-matched wheel bearing preload structure.

[0012] The wheel side bearing clearance adjustment structure of the loader drive axle is optimized on the original structure, the adjustment gasket in the prior art is eliminated, and a threaded wheel side bearing preload structure is adopted. During assembly, the clearance between the right bearing 9 and the left bearing 10 can be ensured by torsionally locking the gear ring support plate 2, thereby improving the assembly performance of the drive axle, reducing the manufacturing and maintenance costs of the drive axle, and solving the problem of cumbersome assembly and material management in the prior art of using adjustment gaskets to control the bearing clearance of the wheel side reducer assembly, thereby increasing the manufacturing and maintenance costs of the drive axle.

Claims

1. A wheel bearing clearance adjustment structure for a loader drive axle, comprising a wheel housing (1), a gear ring support plate (2), a support shaft (7), a right bearing (9) and a left bearing (10); the wheel housing (1) is supported on the support shaft (7) by assembling the right bearing (9) and the left bearing (10); the characteristics are: It also includes an upper screw (3), a stop washer (4), and a lower screw (5); the left end circumferential surface of the support shaft (7) is provided with a support shaft thread (8), the upper portion of the left end surface of the support shaft (7) is provided with a support shaft stop notch (6), the inner hole thread of the gear ring support plate (2) and the support shaft thread (8) are installed on the left end of the support shaft (7) through thread matching, and the right end surface of the gear ring support plate (2) is made to fit with the left bearing (10); the stop washer (4) is fixed to the gear ring support plate (2) through the upper screw (3) and the lower screw (5), and ensures that the stop washer (4) is stuck in the support shaft stop notch (6) to prevent the thread from loosening, thereby forming a thread-matched wheel side bearing pre-tightening structure.