Four-connecting-rod two-oil-cylinder single-side movable arm structure of skid steer loader and lifting method

A skid steer loader and four-bar linkage technology, applied in the direction of earth mover/shovel, mechanically driven excavator/dredger, construction, etc., can solve the problem of low work efficiency and failure to fully utilize the vertical lifting working device function, the long stroke of the boom, etc., to achieve the effect of high work efficiency

Active Publication Date: 2021-09-03
XCMG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional vertical lift skid steer loaders are limited by the stroke and installation distance of the boom cylinder, that is, to ensure that the boom can be lowered at a low position, and to ensure a certain unloading height and unloading distance, which does not fully play the role of the vertical lifting working device
And because the boom stroke is longer, the lifting time is longer, resulting in low work efficiency

Method used

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  • Four-connecting-rod two-oil-cylinder single-side movable arm structure of skid steer loader and lifting method
  • Four-connecting-rod two-oil-cylinder single-side movable arm structure of skid steer loader and lifting method
  • Four-connecting-rod two-oil-cylinder single-side movable arm structure of skid steer loader and lifting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] combine figure 1 As shown, a four-link two-cylinder skid steer loader unilateral boom structure includes a frame 1, a boom 2, a connecting rod 3, a boom cylinder 4, a dump cylinder 5, a conversion cylinder 6, and a bucket 7 . The boom 2 is hinged to the conversion cylinder 6 at point C, the boom 2 and the boom cylinder 4 are hinged at point E, the boom 2 and the connecting rod 3 are hinged at point B, the boom 2 and the bucket cylinder 5 are hinged at point G, and Arm 2 and bucket 7 are hinged at point H. Transformation cylinder 6 and frame 1 are hinged at point D; boom cylinder 4 and frame 1 are hinged at point F; connecting rod 3 and frame 1 are hinged at point A; dump cylinder 5 and bucket 7 are hinged at point I. The boom 2, the connecting rod 3, the conversion cylinder 6 and the dump cylinder 5 are located on the same side of the vehicle frame 1, so that the number of the boom lifting cylinders is still two, which avoids increasing the cost.

[0026] In this emb...

Embodiment 2

[0029] A lifting method, the skid steer loader uses a four-link two-cylinder skid steer loader unilateral boom structure in the embodiment;

[0030] like figure 2 As shown, when vertical lifting is required: the conversion cylinder 6 is kept in a high-pressure tension state, and the conversion cylinder 6 is at the maximum stroke position, so that the skid steer loader can complete the vertical lifting work;

[0031] like image 3 As shown, when a larger unloading height is required: after the boom 2 is lifted to the highest position, the control conversion cylinder 6 shrinks, so that the boom 2 continues to lift to achieve a higher unloading height;

[0032] like Figure 4 As shown, when there is no need for vertical lifting: control the conversion cylinder 6 and the boom cylinder 4 to contract simultaneously, which can make the lifting speed faster and complete the lifting operation more efficiently; the operating speed ratio of the conversion cylinder 6 and the boom cylin...

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Abstract

The invention discloses a four-connecting-rod two-oil-cylinder single-side movable arm structure of a skid steer loader and a lifting method, and belongs to the technical field of engineering machinery. The single-side movable arm structure comprises a frame and a movable arm, a bucket and a tipping bucket oil cylinder are arranged at the front end of the movable arm, a conversion oil cylinder and a movable arm oil cylinder are hinged to the rear end of the movable arm, the movable arm oil cylinder is located on the front side of the conversion oil cylinder, the other end of the conversion oil cylinder and the other end of the movable arm oil cylinder are hinged to the frame, and connecting rods are hinged between the movable arm and the frame. According to the single-side movable arm structure, various operation modes can be provided according to the working conditions, needed unloading height and unloading distance are achieved, when vertical lifting operation is not needed, the movable arm oil cylinder and the variable oil cylinder can work at the same time, and higher working efficiency and low-position rise force are acquired.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a four-link two-cylinder skid steer loader single-side boom structure and a lifting method. Background technique [0002] The skid steer loader is a small and compact loader. The unloading height and unloading distance are very important performance parameters of the skid steer loader. The unloading height refers to the distance between the tip of the bucket and the ground in the unloading state, and the unloading distance refers to the distance between the tip of the bucket and the tire in the unloading state. [0003] Traditional vertical lift skid steer loaders are limited by the stroke and installation distance of the boom cylinder, that is, to ensure that the boom can be lowered at a low position, and to ensure a certain unloading height and unloading distance, which does not fully play the role of the vertical lifting working device . And because the boom st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/28E02F3/36E02F3/42
CPCE02F3/28E02F3/36E02F3/425
Inventor 宋男韩标魏勋利许鹏宋全朱福平颜颖
Owner XCMG CONSTR MACHINERY
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