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Auxiliary frame of wheel loader

A technology for wheel loaders and subframes, which is applied to vehicle parts, transportation and packaging, and substructures. It can solve problems such as subframe cracking and fracture, improve strength and stability, and improve stress distribution. The effect of meeting the strength requirements

Inactive Publication Date: 2014-01-15
SHAANXI SHENGMAI PETROLEUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the use of the loader, the subframe cracked, specifically, the weld between the backing plate and the connecting plate cracked, and the weld between the beam and the connecting plate also cracked; the bottom of the hinge pin hole of the beam appeared fracture

Method used

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  • Auxiliary frame of wheel loader
  • Auxiliary frame of wheel loader
  • Auxiliary frame of wheel loader

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as image 3 with 4 As shown, the sub-frame of the wheel loader of the present invention is composed of a bottom plate 1, a cross beam 2, a connecting plate 3, and a block 6. The four bottom plates 1 are welded together through the cross beam 2 and the connecting plate 3. The holes on the bottom plate 1 are used for The rear axle is fixed, and the hinge pin hole 5 on the cross beam 2 is used to install the hinge pin, and the sub-frame and the rear frame are hinged together through the hinge pin.

[0015] The present invention combines the connecting plate 3 and the backing plate into one part, and there is a cut in the middle of the part to give way to the rear axle, so that the welding seam between the connecting plate 3 and the backing plate can be eliminated, thereby solving the problem of the connection plate 3 and the backing plate. Cracking of the weld between the plates.

[0016] In addition, a reinforcing plate 7 is added, which connects the connecting plate 3, t...

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PUM

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Abstract

The invention relates to an auxiliary frame of a loader. An auxiliary frame of a wheel loader comprises four bottom plates welded together through beams and linkage plates, the bottom plates are provided with holes used for fixing rear axles, the beams are provided with hinge joint pin holes used for installation of hinge joint hinge pins, and the bottoms of the linkage plates are provided with check blocks. The auxiliary frame is characterized in that notches are formed in the middles of the linkage plates. Accordingly, because reinforcing plates and stressed areas of the beams are increased, strength and stability of the auxiliary frame are integrally improved; the requirement of the auxiliary frame for strength is met, and stress distribution is improved.

Description

Technical field [0001] The invention relates to a subframe of a loader. Background technique [0002] The working conditions of wheel loaders are complex and changeable, and they bear various forces and moments during operation and walking. Therefore, the structural strength analysis of the loader is very important. [0003] Such as figure 1 As shown, the existing wheel loader subframe is composed of a bottom plate, a beam, a connecting plate, a backing plate, and a block. The four bottom plates are welded together by the cross beam and the connecting plate. The holes on the bottom plate are used to fix the rear axle. The hinge pin hole on the beam is used to install the hinge pin, and the sub-frame and the rear frame are hinged together through the hinge pin. During the use of the loader, the subframe cracked, specifically the weld between the backing plate and the connecting plate, and the weld between the beam and the connecting plate also cracked; the bottom of the hinge pin ...

Claims

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Application Information

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IPC IPC(8): B62D21/18
Inventor 王耀斌
Owner SHAANXI SHENGMAI PETROLEUM
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