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Motion redundancy face shovel excavating mechanism containing lengthened arm

A technology of lengthening the arm and redundancy, applied in the direction of mechanically driven excavators/dredgers, etc., can solve the problems of small driving force arm, single structure, high energy consumption, etc., achieve large driving force arm, improve flexibility, reduce The effect of energy consumption

Inactive Publication Date: 2012-10-10
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the front shovel hydraulic excavator technology of foreign manufacturers is relatively mature, their product structure is relatively simple, and the problem of large energy consumption due to small driving force arm has not been solved.

Method used

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  • Motion redundancy face shovel excavating mechanism containing lengthened arm
  • Motion redundancy face shovel excavating mechanism containing lengthened arm
  • Motion redundancy face shovel excavating mechanism containing lengthened arm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] exist figure 1 In the three-dimensional schematic diagram of Embodiment 1 of the mobile redundant front shovel excavating mechanism with extended arms shown, the frame 1 and the lower end of the boom 3 are hinged through the hinge R1, and the upper end of the boom and the end of the extended arm 4 are hinged through the hinge R3 Hinged, the other end of the extended arm is hinged with one end of the stick 5 through a hinge R5, and the other end of the stick is hinged with a part of the bucket 6 through a hinge R8. The other part of the bucket is hinged with the cylinder liner ends of a pair of bucket hydraulic cylinders 7 through a hinge R9, and the piston rod ends of the pair of bucket hydraulic cylinders are hinged with the middle part of the above-mentioned elongated arm through a hinge R4. The middle part of the above-mentioned boom is hinged with the cylinder liner ends of a pair of boom hydraulic cylinders 2 through a hinge R2, and the piston rod ends of the pair ...

Embodiment 2

[0016] exist figure 2 In the three-dimensional schematic diagram of the embodiment 2 of the movement-redundant front shovel excavating mechanism containing the extended arm, a pair of cylinder liner ends of the drive hydraulic cylinder 9 with movement redundancy and another part on the arm 5 The ends of the piston rods of the pair of driving hydraulic cylinders are hinged with another part on the boom 3 through the hinge R11. The connections of other parts are all the same as in Embodiment 1.

Embodiment 3

[0018] exist image 3 In the three-dimensional schematic diagram of the embodiment 3 of the movement redundant front shovel excavating mechanism containing the extended arm, a pair of cylinder liner ends of the drive hydraulic cylinder 9 with movement redundancy and another part on the extended arm 4 The hinge R6 is hinged, and the ends of the piston rods of the pair of driving hydraulic cylinders are hinged with another part on the frame 1 through the hinge R11. The connections of other parts are all the same as in Embodiment 1.

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Abstract

A motion redundancy face shovel excavating mechanism containing a lengthened arm comprises a tandem connection mechanism formed by a frame, a movable arm, a lengthened arm, a hopper rod and a bucket which are sequentially hinged, and four pairs of driving hydraulic cylinders are fully and symmetrically arranged on the two sides of the tandem connection mechanism. The frame is hinged with the lower end of the movable arm, the upper end of the movable arm is hinged with one end of the lengthened arm, the other end of the lengthened arm is hinged with one end of the hopper rod, and the other end of the hopper rod is hinged with one part of a bucket; another part of the bucket is hinged with one end of each of the pair of bucket hydraulic cylinders, and the other end of the pair of the bucket hydraulic cylinders is hinged with the middle of the lengthened arm; the middle of the movable arm is hinged with one end of the pair of movable arm hydraulic cylinder, and the other end of the pair of movable arm hydraulic cylinder is hinged with the frame; the hopper rod is hinged with one end of the hopper rod hydraulic cylinder, and the other end of the hopper hoper hydraulic cylinder is hinged with the frame; and a pair of hydraulic cylinders for driving motion redundancy can adopt various connection ways. The motion redundancy face shovel excavating mechanism containing the lengthened arm has the characteristics of motion redundancy, large driving force arm and large space, and can achieve heavy load excavation.

Description

technical field [0001] The invention relates to an excavator, in particular to a hydraulic excavating mechanism for a front shovel. Background technique [0002] Large-scale front shovel hydraulic excavator is the main tool for mining in open-pit coal mines, and its excavating working device is the main component to complete various functions of the excavator. There are few domestic studies on the working device of hydraulic front shovel excavator. Chinese patent CN200520035287.8 involves a A hydraulic excavator front shovel operating device horizontal pushing mechanism, characterized by the hinged bucket cylinder piston rod and the front end of the boom, the rear part of the arm is hinged with the front end of the boom, the bucket is hinged with the front end of the arm, and the bucket is connected with the bucket cylinder. The ends of the cylinder are hinged, and the hinge points form a four-bar mechanism with a quadrilateral structure in the air. Major foreign manufactur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/34E02F3/38E02F3/42
Inventor 丁华锋曹文熬陈子明付鸿晔王园园曹宇
Owner YANSHAN UNIV
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