Half axle gear gasket adjusting structure of differential mechanism of drive axle of loading machine

By adding a copper clearance adjustment shim to the bottom of the anti-rotation shim of the half-shaft gear, the problem of increased clearance caused by wear of the half-shaft gear in the drive axle of the loader was solved. This resulted in a simple, easy-to-assemble, and highly reliable adjustment structure, which improved the service life and reliability of the loader.

CN223524348UActive Publication Date: 2025-11-07LONGGONG FUJIAN QIAOXIANG CO LTD
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Patent Information

Application Number
CN202520009976.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-03
Publication Date
2025-11-07
Estimated Expiration
2035-01-03

AI Technical Summary

Technical Problem

The existing loader drive axle differential half-shaft gear uses only one anti-rotation shim to adjust the tooth backlash, which leads to severe wear under overload conditions. This causes the clearance between the half-shaft gear and the bevel gear to increase, resulting in abnormal noise and potentially gear tooth breakage, damaging the differential and reducing its service life.

Method used

Add a copper clearance adjustment shim to the bottom of the anti-rotation shim of the half-shaft gear. Select different thicknesses according to actual needs to adjust the side clearance between the half-shaft gear and the bevel gear. Use the elasticity of copper to release the clearance and avoid wear.

Benefits of technology

This effectively avoids abnormal noise and gear damage caused by increased clearance between the half-shaft gear and the bevel gear, improves the service life and reliability of the drive axle, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a half axle gear gasket adjusting structure of a loader drive axle differential mechanism. The half axle gear gasket adjusting structure comprises a bevel gear gasket, a bevel gear, a cross shaft, a differential mechanism shell, a copper gap adjusting gasket, a half axle gear anti-rotation gasket and a half axle gear. The bevel gear and the bevel gear gasket are sequentially arranged on the cross shaft in a sleeved mode. The copper gap adjusting shim with the corresponding thickness is selected according to the backlash value of the half axle gear and the bevel gear, the copper gap adjusting shim is installed in the differential mechanism shell, then the half axle gear anti-rotation shim is placed, and then the half axle gear is installed. The semi-axle gear gasket is simple and compact in structure, convenient to assemble and reliable to use, and solves the problems that the fit clearance between the semi-axle gear and a bevel gear is easily enlarged to cause abnormal sound and even damage to the differential due to tooth breaking of the gear because only one anti-rotation semi-axle gear gasket is used for adjusting the gear backlash of the semi-axle gear of the existing loader drive axle differential.
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Description

TECHNICAL FIELD

[0001] The utility model relates to loader drive axle differential mechanism half axle gear assembly technical field, concretely relates to loader drive axle differential mechanism half axle gear gasket adjusting structure. BACKGROUND

[0002] The wheel loader is often overloaded because of the large density of the load in the working conditions of part iron powder and coal powder, for example, the actual load of the 6-ton loader is often more than 6 tons. The load of the loader is all borne on the drive axle, and the half axle gear inside the differential mechanism will bear the maximum load when the loader is turning, so the side clearance between the half axle gear and the bevel gear is particularly important. The half axle gear gasket of the prior art loader drive axle differential mechanism half axle gear is generally only used to adjust the side clearance, and the defects are as follows: when the loader is overloaded, the half axle gear presses the half axle gear gasket under the action of the load, and the gasket is worn, and the wear will become more and more serious after continuous operation, which causes the clearance between the half axle gear and the bevel gear to become larger, resulting in abnormal noise, and even gear tooth damage and differential mechanism damage, and the service life of the drive axle is reduced, especially for the 6-ton or more large-tonnage loader. SUMMARY

[0003] The utility model discloses a kind of half axle gear gasket adjusting structures of loader drive axle differential mechanism, to solve the problem that the prior art loader drive axle differential mechanism half axle gear is only used to adjust the side clearance by half axle gear gasket, which is prone to cause the clearance between the half axle gear and the bevel gear to become larger, resulting in abnormal noise, even gear tooth damage and differential mechanism damage.

[0004] To achieve the above object, the utility model loader drive axle differential mechanism half axle gear gasket adjusting structure includes bevel gear gasket 1, bevel gear 2, cross shaft 3, differential mechanism shell 4, copper material clearance adjusting gasket 5, half axle gear anti-rotation gasket 6 and half axle gear 7;Bevel gear 2 and bevel gear gasket 1 are successively sleeved into cross shaft 3;According to the side clearance value of half axle gear 7 and bevel gear 2, copper material clearance adjusting gasket 5 of corresponding thickness is selected, and the copper material clearance adjusting gasket 5 is loaded into differential mechanism shell 4, and then half axle gear anti-rotation gasket 6 is placed, and half axle gear 7 is loaded.

[0005] The utility model loader drive axle differential mechanism half axle gear gasket adjusting structure adds a copper material adjusting gasket at the bottom of half axle gear anti-rotation gasket, and has the following technical features and beneficial effects:

[0006] 1. The bottom of the half shaft gear anti-rotation pad 6 is increased with a copper gap adjusting pad 5, since the copper material is softer than the steel material, the gap can be released and rebounded after being pressed, thus avoiding the problem that the half shaft gear and bevel gear are prone to cause the gear backlash to be too large, thus causing abnormal sound and even gear tooth damage and differential damage due to the wear between the half shaft gear pad and the half shaft gear in the prior art;

[0007] 2. The copper adjusting pad 5 can be flexibly set with multiple thickness specifications according to the actual situation, so as to meet the needs of different side gap values of the half shaft gear 7 and the bevel gear 2.

[0008] 3. The structure is simple, compact, easy to assemble, low in maintenance cost and reliable in use. DETAILED DESCRIPTION

[0009] Figure 1 is the main sectional view structure schematic diagram of the loader drive axle differential half shaft gear pad adjusting structure.

[0010] The bevel gear pad 1, the bevel gear 2, the cross shaft 3, the differential housing 4, the copper gap adjusting pad 5, the half shaft gear anti-rotation pad 6 and the half shaft gear 7. DETAILED DESCRIPTION

[0011] The specific embodiments of the loader drive axle differential half shaft gear pad adjusting structure will be further described in detail below with reference to the drawings.

[0012] Figure 1 As shown in the drawings, the loader drive axle differential half shaft gear pad adjusting structure comprises a bevel gear pad 1, a bevel gear 2, a cross shaft 3, a differential housing 4, a copper gap adjusting pad 5, a half shaft gear anti-rotation pad 6 and a half shaft gear 7; the bevel gear 2 and the bevel gear pad 1 are sequentially sleeved into the cross shaft 3; the copper gap adjusting pad 5 with a corresponding thickness is selected according to the side gap value of the half shaft gear 7 and the bevel gear 2, and the copper gap adjusting pad 5 is installed into the differential housing 4, and then the half shaft gear anti-rotation pad 6 is installed, and finally the half shaft gear 7 is installed.

[0013] When the loader works, the half shaft gear 7 rotates to drive the bevel gear 2 to rotate, and the bevel gear 2 rotates around the cross shaft 3; the half shaft gear 7 bears the turning pressure when turning, at this time the copper gap adjusting pad 5 adjusts the gear side gap, since the copper material is softer than the steel material, the gap can be released and rebounded after being pressed, thus avoiding the problem that the half shaft gear and bevel gear are prone to cause the gear backlash to be too large, thus causing abnormal sound and even gear tooth damage and differential damage due to the wear between the half shaft gear pad and the half shaft gear in the prior art, greatly reducing the damage failure of the drive axle main transmission assembly, and improving the service life and reliability of the drive axle.

Claims

1. A loader drive axle differential half axle gear washer adjusting structure, which comprises a bevel gear washer (1), a bevel gear (2), a cross shaft (3), a differential housing (4), a half axle gear anti-rotation washer (6) and a half axle gear (7); the bevel gear (2) and the bevel gear washer (1) are sequentially sleeved into the cross shaft (3); characterized in that: It also includes copper gap adjustment pad (5); according to the backlash value of bevel gear (2) and half shaft gear (7), select the corresponding thickness of copper gap adjustment pad (5), and put the copper gap adjustment pad (5) into the differential housing (4), and then put the half shaft gear anti rotation pad (6), and then put in the half shaft gear (7). ​