Steering drive axle main speed reducer shell of backhoe loader

Abstract

The utility model discloses a main speed reducer shell of a steering drive axle of a loader-digger. The main speed reducer shell comprises a speed reducer shell bag, a mounting flange, a bearing cover mounting seat and a swing frame mounting shaft with a bearing mounting hole, a receding notch is formed in the upper inclined surface of the reduction shell bag, and the receding notch is in an arc shape and used for receding when the steering oil cylinder is installed. The steering oil cylinder is simple and compact in structure, low in manufacturing and maintenance cost, long in service life and safe and reliable in operation, interference between the steering oil cylinder and other parts can be avoided when the whole machine is assembled, and the problem that a steering oil cylinder on a drive axle of a loader-digger in the prior art interferes with a main speed reducer shell or a whole machine frame when the whole machine is assembled is solved.

Description

Technical Field

[0001] This utility model relates to the field of excavator loader drive axle technology, specifically to a main reducer housing for an excavator loader steering drive axle. Background Technology

[0002] Because backhoe loader steering drive axles require steering functionality, they typically incorporate steering cylinders to facilitate easier and more responsive steering, improving driving comfort. However, in one type of backhoe loader steering drive axle, the main reducer housing lacks a clearance for the steering cylinder. To avoid interference with the main reducer housing during installation, the steering cylinder needs to be raised. However, this raised steering cylinder on the drive axle interferes with the machine frame during overall assembly. Therefore, to meet the overall machine layout requirements, it is necessary to optimize the design of the main reducer housing of the backhoe loader steering drive axle. Summary of the Invention

[0003] The purpose of this utility model is to provide a main reducer housing for the steering drive axle of an excavator loader that has a simple and compact structure, avoids interference between the steering cylinder and other components during the assembly of the whole machine, has low manufacturing and maintenance costs, long service life, and safe and reliable operation, and solves the problem of interference between the steering cylinder on the drive axle of the excavator loader and the main reducer housing or the whole machine frame during the assembly of the whole machine.

[0004] To achieve the above objectives, the main reducer housing of the steering drive axle of the excavator loader of this utility model includes a reducer housing 1, a mounting flange 2, a bearing cover mounting seat 3, and a swing frame mounting shaft 4 with bearing mounting holes 5; a clearance notch 7 is provided on the upper inclined surface of the reducer housing 1, which is arc-shaped and is used to make way for the steering cylinder 8 during installation.

[0005] The lower inclined surface of the shell-reducing package 1 is provided with a reinforcing rib 6 at the transition connection between it and the mounting flange 2. There are two reinforcing ribs 6, one on the lower left inclined surface and one on the lower right inclined surface of the shell-reducing package 1, arranged symmetrically to ensure the strength of the shell-reducing package 1.

[0006] The main reducer housing of the excavator loader's steering drive axle, with the above-mentioned structure optimized to meet the overall machine layout requirements, has the following technical features and beneficial effects:

[0007] 1. A clearance notch 7 is added to the reducer housing 1 to facilitate the inward installation of the steering cylinder, so as to meet the needs of the overall machine's spatial structure layout. This effectively solves the problem of interference between the steering cylinder on the drive axle of the existing excavator loader and the main reducer housing or the overall machine frame during the assembly of the machine. At the same time, a reinforcing rib is added to the reducer housing 1 to ensure the strength of the main reducer housing.

[0008] 2. The structure is simple and compact, with low manufacturing and maintenance costs, safe and reliable operation, and long service life. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of the main reducer housing of the steering drive axle of the excavator loader according to this utility model.

[0010] Figure 2 This is a schematic diagram of the main structure of the main reducer housing of the steering drive axle of the excavator loader according to this utility model.

[0011] Figure 3 This is a three-dimensional structural diagram of a steering cylinder mounted on a drive axle.

[0012] Reference numerals: 1. Reduction housing; 2. Mounting flange; 3. Bearing cover mounting seat; 4. Front swing frame mounting shaft; 5. Bearing mounting hole; 6. Reinforcing rib; 7. Displacement notch; 8. Steering cylinder; 9. Input flange; 10. Axle housing; 11. Swing shaft mounting hole. Detailed Implementation

[0013] The main reducer housing of the excavator loader steering drive axle of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0014] Figures 1-2 As shown, the main reducer housing of the steering drive axle of the excavator loader of this utility model includes a reducer housing 1, a mounting flange 2, a bearing cover mounting seat 3, a swing frame mounting shaft 4 with bearing mounting holes 5, and reinforcing ribs 6. A clearance notch 7 is provided on the upper inclined surface of the reducer housing 1. The clearance notch 7 is arc-shaped and is used to make way for the steering cylinder 8 during installation. Reinforcing ribs 6 are provided at the transition connection between the lower inclined surface of the reducer housing 1 and the mounting flange 2. There are two reinforcing ribs 6, one on the lower left inclined surface and one on the lower right inclined surface of the reducer housing 1, which are symmetrically arranged to ensure the strength of the reducer housing 1.

[0015] Figure 3 As shown, the steering cylinder 8 is mounted on the axle housing 10. Because there is a clearance notch 7 on the main reducer housing of the main reducer assembly 9, the steering cylinder can be installed inward. This allows the outer circle of the steering cylinder 8 to be lower than the height of the swing shaft mounting hole 11 from the ground after installation, ensuring that it does not interfere with the swing shaft of the frame connected to the machine, nor with the main reducer assembly 9. This effectively solves the problem of interference between the steering cylinder on the drive axle of the existing excavator loader and the main reducer housing or the machine frame during the assembly of the machine. In addition, by adding reinforcing ribs to the reducer housing 1, the strength of the main reducer housing is ensured.

Claims

1. A main reducer housing for a steering drive axle of an excavator loader, comprising a housing (1), a mounting flange (2), a bearing cover mounting seat (3), and a swing frame mounting shaft (4) with bearing mounting holes (5); characterized in that, A clearance notch (7) is provided on the upper inclined surface of the reducing housing (1). The clearance notch (7) is arc-shaped and is used to make way for the steering cylinder (8) during installation.

2. The main reducer housing of the excavator loader steering drive axle according to claim 1, characterized in that, The lower inclined surface of the shell-reducing package (1) is provided with a reinforcing rib (6) at the transition connection between the lower inclined surface and the mounting flange (2). There are two reinforcing ribs (6), one on the lower left inclined surface and one on the lower right inclined surface of the shell-reducing package (1), arranged symmetrically to ensure the strength of the shell-reducing package (1).

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