CN210661313U

CN210661313U - Wheel-side speed reducer of drive axle of loader

Info

Publication number: CN210661313U
Application number: CN201920912192.1U
Authority: CN
Inventors: 蔡军; 曾辉; 任高奇
Original assignee: Lonking Fujian Bridge Box Co Ltd
Current assignee: Lonking Fujian Bridge Box Co Ltd
Priority date: 2019-06-17
Filing date: 2019-06-17
Publication date: 2020-06-02
Anticipated expiration: 2029-06-17

Abstract

The utility model discloses a wheel-side reducer of a loader drive axle, which comprises an inner gear ring, a planet wheel, a support shaft, a left retainer ring, a right retainer ring, a bearing and a nut; the planet gear is meshed with the inner gear ring; the inner gear is arranged on a support shaft serving as a fixed part in a spline fit mode, fit gaps exist between the inner gear ring and the support shaft in the axial direction and the radial direction after installation, the left check ring is arranged on the left end face of the inner spline of the inner gear ring, and the right check ring is arranged on the right end face of the inner spline of the inner gear ring so as to limit axial force and play of the inner gear ring, so that self-adaptive adjustment can be achieved when the planet gear and the inner gear ring are engaged and unbalanced in the working process, and the load balancing performance; the bearing is installed on the shaft diameter of the supporting shaft, the nut is installed on the left end face of the bearing, and the gap of the bearing is directly adjusted through the nut. The utility model discloses but when the unbalance loading appears in the meshing of planet wheel and ring gear self-adaptation adjustment, guaranteed the equal load capacity of ring gear and planet wheel, greatly reduced ring gear and planet wheel fault rate.

Description

Wheel-side speed reducer of drive axle of loader

Technical Field

The utility model relates to an engineering machine tool reduction gear equipment, concretely relates to loader transaxle wheel reduction gear.

Background

at present, the wheel-side speed reducer of a drive axle of a domestic mainstream loader adopts an NGW structure and is used for transmitting larger torque, wherein an inner spline of an inner gear ring is matched with an outer spline of a support shaft, one end of the inner gear ring is attached to a bearing, the other end of the inner gear ring is locked on the support shaft by a round nut, and the inner gear ring is fixedly arranged.

Disclosure of Invention

The utility model aims at overcoming above-mentioned defect, providing a simple structure, preparation and maintenance cost are low, use reliable, longe-lived a loader transaxle wheel reduction gear to solve following two point problems that exist among the prior art: firstly, an inner gear ring is installed and then a nut pushes the inner gear ring to a bearing end face and is locked, the inner gear ring is installed and then fixed, theoretically, the inner gear ring is meshed with three planet wheels simultaneously when working, but the accuracy of the inner gear ring cannot be guaranteed, the three planet wheels cannot be well meshed simultaneously when in use, the inner gear ring is prone to unbalance loading when used under severe working conditions, and finally the inner gear ring is damaged; and secondly, due to the same reason, instantaneous stress concentration is easily caused to the planet wheel when the planet wheel is used under a severe working condition, and finally the planet wheel is damaged and fails.

In order to achieve the purpose, the utility model relates to a loader drive axle wheel reduction gear comprises an inner gear ring, a planet wheel, a support shaft, a left retainer ring, a right retainer ring, a bearing and a nut; the planet gear is meshed with the inner gear ring; the inner gear ring is arranged on a support shaft serving as a fixed part in a spline fit mode, fit gaps exist between the inner gear ring and the support shaft in the axial direction and the radial direction after installation, the left check ring is arranged on the left end face of an inner spline of the inner gear ring, and the right check ring is arranged on the right end face of the inner spline of the inner gear ring so as to limit axial force and play of the inner gear ring, so that self-adaptive adjustment can be realized when the planetary gear and the inner gear ring are engaged and unbalanced in the working process, and the load balancing; the bearing is installed on the shaft diameter of the supporting shaft, the nut is installed on the left end face of the bearing, and the gap of the bearing is directly adjusted through the nut.

The loader drive axle wheel reduction gear with the structure has the following technical characteristics and beneficial effects:

1. according to the wheel-side reducer structure of the loader drive axle, when the nuts are locked, the nuts are not in direct contact with the inner gear ring, the bearing gap is directly adjusted through the nuts, the inner gear ring is not completely locked after assembly, but a certain axial gap and a certain radial gap exist between the matching splines of the inner gear ring and the support shaft, and the inner gear ring is directly limited by the left retainer ring and the right retainer ring to move under axial stress, so that the self-adaptive adjustment can be realized when unbalance loading occurs in work, the load balancing performance of the inner gear ring is ensured, the failure rate of the inner gear ring is reduced, and.

2. After the wheel-side reducer structure of the drive axle of the loader is assembled, the inner gear ring can be adjusted in a self-adaptive mode, so that the load balancing performance of three planet wheels is ensured, the faults of the planet wheels are reduced, and the enterprise income is increased.

Drawings

Fig. 1 is a schematic structural diagram of a main sectional view of a wheel reduction gear of a drive axle of a loader.

Reference numerals: the device comprises an inner gear ring 1, a planet wheel 2, a support shaft 3, a left retainer ring 4, a right retainer ring 5, a bearing 6 and a nut 7.

Detailed Description

The following describes a wheel reduction gear of a drive axle of a loader in further detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1, the wheel-side reducer of the drive axle of the loader of the present invention comprises an inner gear ring 1, a planet wheel 2, a support shaft 3, a left retainer ring 4, a right retainer ring 5, a bearing 6 and a nut 7; the planet gear 2 is meshed with the inner gear ring 1; the inner gear ring 1 is installed on a support shaft 3 serving as a fixed part in a spline fit mode, fit gaps exist between the inner gear ring 1 and the support shaft 3 in the axial direction and the radial direction after installation, the left check ring 4 is installed on the left end face of an inner spline of the inner gear ring 1, and the right check ring 5 is installed on the right end face of the inner spline of the inner gear ring 1 to limit axial movement of the inner gear ring 1; the bearing 6 is installed on the shaft diameter of the supporting shaft 3, the nut 7 is installed on the left end face of the bearing 6, and the gap of the bearing 6 is directly adjusted through the nut 7 during assembly.

According to the wheel-side reducer structure of the loader drive axle with the structure, the nut 7 is not in contact with the inner gear ring 1, and the gap of the bearing 6 is directly adjusted by the nut; the inner gear ring 1 directly limits axial movement through a left retainer ring 4 and a right retainer ring 5, the inner gear ring 1 and the support shaft 3 are in spline fit, and a small amount of axial and radial gaps exist after installation. In the work, when the meshing of the planet gear 2 and the inner gear ring has unbalance loading, the self-adaptive adjustment can be carried out, the load balancing performance of the inner gear ring 1 and the planet gear 2 is ensured, the failure rate of the inner gear ring 1 and the planet gear 2 can be greatly reduced, and the enterprise benefit is increased.

Claims

1. A wheel-side reducer of a drive axle of a loader comprises an inner gear ring, a planet wheel, a support shaft, a bearing and a nut; the planet gear is meshed with the inner gear ring; the method is characterized in that: it also comprises a left check ring and a right check ring; the inner gear ring is arranged on a support shaft serving as a fixed part in a spline fit mode, fit gaps exist between the inner gear ring and the support shaft in the axial direction and the radial direction after installation, the left check ring is arranged on the left end face of an inner spline of the inner gear ring, and the right check ring is arranged on the right end face of the inner spline of the inner gear ring so as to limit axial force and play of the inner gear ring, so that self-adaptive adjustment can be carried out when the planetary gear and the inner gear ring are engaged and unbalanced in the working process, and the load; the bearing is installed on the shaft diameter of the supporting shaft, the nut is installed on the left end face of the bearing, and the gap of the bearing is directly adjusted through the nut.