CN212928742U

CN212928742U - Loader transaxle wheel limit planet wheel axle construction

Info

Publication number: CN212928742U
Application number: CN202022199659.8U
Authority: CN
Inventors: 蔡军; 任高奇; 卜习燕
Original assignee: Lonking Fujian Bridge Box Co Ltd
Current assignee: Lonking Fujian Bridge Box Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-04-09
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a wheel-side planetary wheel shaft structure of a loader drive axle, which comprises a wheel-side end cover and a planetary wheel shaft; the planet wheel is arranged on a planet wheel shaft through a roller bearing assembly, and the roller bearing assembly is limited through a retainer ring so as to ensure that the roller bearing assembly is not loosened; the wheel edge end cover and the planet wheel shaft are split, and the planet wheel shaft is of an independent flange type; a plurality of evenly distributed screw holes are arranged on the wheel rim end cover and fixed on the wheel rim end cover through screws; the single flange type planet wheel shaft is formed by forging a 20CrMnTi material and then performing carburizing and quenching treatment so as to improve rigidity. The utility model provides a four stands of wheel limit end cover need forge the shaping many times among the prior art and lead to the cost of manufacture high, four stand roots of wheel limit end cover easily cause stress concentration to cause the problem that the fault rate is high.

Description

Loader transaxle wheel limit planet wheel axle construction

Technical Field

The utility model relates to a loader transaxle wheel reduction gear assembly, concretely relates to loader transaxle wheel limit goes out the wheel axle construction.

Background

At present, the wheel-side speed reducer of a drive axle of a domestic loader adopts an NGW structure for transmitting larger torque, wherein a wheel-side end cover of one type of loader is of a forged steel structure, the wheel-side end cover is provided with four upright posts, a planet wheel shaft of a common structure is replaced by the four upright posts, and a planet wheel is assembled on the upright posts of the wheel-side end cover by adopting a roller bearing assembly for transmitting the torque. The loader drive axle wheel-side planetary wheel shaft structure has the following defects: the four upright posts of the wheel-side end cover are manufactured by forging, and the four upright posts are high in height and large in section size difference, so that the four upright posts can be formed by forging for multiple times, and the manufacturing cost is high; and secondly, the root parts of the four upright posts of the wheel edge end cover easily cause stress concentration, and the failure rate is high.

Disclosure of Invention

The utility model aims at overcoming above-mentioned defect, provide a simple structure, preparation and maintenance cost are low, use safe and reliable's loader transaxle wheel limit and move wheel axle construction to solve among the prior art four stands of wheel limit end cover and need forge the shaping many times and lead to the cost of manufacture high, four stand roots of wheel limit end cover easily arouse stress concentration to cause the problem that the fault rate is high.

In order to achieve the purpose, the wheel-side planetary wheel shaft structure of the loader drive axle comprises a wheel-side end cover and a planetary wheel shaft; the planet wheel is arranged on a planet wheel shaft through a roller bearing assembly, and the roller bearing assembly is limited through a retainer ring so as to ensure that the roller bearing assembly is not loosened; the wheel edge end cover and the planet wheel shaft are split, and the planet wheel shaft is of an independent flange type; a plurality of evenly distributed screw holes are arranged on the wheel rim end cover and fixed on the wheel rim end cover through screws; the single flange type planet wheel shaft is formed by forging a 20CrMnTi material and then performing carburizing and quenching treatment so as to improve rigidity.

The wheel-side planetary wheel shaft structure of the loader drive axle is provided with the independent flange type planetary wheel shaft, and is locked to the wheel-side end cover by the bolts, so that the wheel-side planetary wheel shaft structure has the following technical characteristics and beneficial effects:

1. according to the wheel-side end cover and planet wheel shaft split design in the wheel-side planet wheel shaft structure of the loader drive axle, the single flange type planet wheel shaft is locked to the wheel-side end cover through bolts to replace four stand columns in the prior art, and due to the fact that the difference of the cross sections of the wheel-side end covers is small, the forging process is simple, the processing cost is low, and the cost performance is high.

2. The single flange type planet wheel shaft is designed by carburizing and quenching by adopting a 20CrMnTi material, has high hardness, good strength and toughness, high reliability and low failure rate, and can obviously reduce the after-sale maintenance cost.

3. Simple structure, convenient installation and low manufacturing and maintenance cost.

Drawings

Fig. 1 is the main schematic sectional view of the wheel-side planetary wheel shaft structure of the loader drive axle of the present invention.

Reference numerals: wheel limit end cover 1, planet wheel axle 2, screw 3, planet wheel 4, retaining ring 5, roller bearing assembly 6.

Detailed Description

The structure of the wheel-side planetary wheel axle of the loader drive axle of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, the wheel-side planetary wheel axle structure of the loader drive axle of the utility model comprises a wheel-side end cover 1 and a planetary wheel axle 2; the planet wheel 4 is arranged on the planet wheel shaft 2 through a roller bearing assembly 6, and the roller bearing assembly 6 is limited through a retainer ring 5 to ensure that the roller bearing assembly 6 is not loosened; the wheel-side end cover 1 and the planet wheel shaft 2 are split, the planet wheel shaft 2 is of an independent flange type, is forged by a 20CrMnTi material and then is subjected to carburizing and quenching treatment, a plurality of uniformly distributed screw holes are formed in the planet wheel shaft, and the planet wheel shaft is fixed on the wheel-side end cover 1 through screws 3.

When the loader driving axle hub planetary gear shaft structure works, the planetary gear 4 is used for transmitting torque, and because the hub end cover 1 and the planetary gear shaft 2 in the loader driving axle hub planetary gear shaft structure are designed in a split mode, the hub end cover 1 is not provided with four upright posts, the section difference of the hub end cover 1 is smaller, the forging process is simple and easy to realize, and the processing cost is low; in addition, the planet wheel shaft 2 is designed by carburizing and quenching by adopting a 20CrMnTi material, so that the rigidity is good, the reliability is high, the failure rate and the maintenance cost are reduced, and the enterprise income is increased.

Claims

1. A loader transaxle wheel limit planet wheel axle construction, it includes wheel limit end cap and planet wheel axle; the planet wheel is arranged on a planet wheel shaft through a roller bearing assembly, and the roller bearing assembly is limited through a retainer ring so as to ensure that the roller bearing assembly is not loosened; the method is characterized in that: the wheel edge end cover and the planet wheel shaft are split, and the planet wheel shaft is of an independent flange type; a plurality of evenly distributed screw holes are arranged on the wheel rim end cover and fixed on the wheel rim end cover through screws.