Lightweight design method and structure for movable arm of loading machine

A lightweight design and manoeuvring arm technology, applied in design optimization/simulation, instrumentation, geometric CAD, etc., can solve rare problems, achieve the effect of accurate force transmission path, improve product competitiveness, and rational layout

Pending Publication Date: 2021-07-16
XCMG CONSTR MACHINERY
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  • Claims
  • Application Information

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Problems solved by technology

The adjustment of the quantity and position of this material can make the structural support position under the condition of applied load, and ensure that the lightweight design can be realized under the constraints of rigidity and other constraints. However, the lightweight design method for multiple working conditions is currently researched not yet seen

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  • Lightweight design method and structure for movable arm of loading machine
  • Lightweight design method and structure for movable arm of loading machine
  • Lightweight design method and structure for movable arm of loading machine

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Embodiment Construction

[0056] Further detailed description will be described in conjunction with the accompanying drawings. The following examples are for more clearly explaining the technical solutions of the present invention without limiting the scope of the invention.

[0057] Such as Figure 1 ~ 3 One embodiment as shown, a light quantification design method of loading a motor arm, using the boom plate material to be Q550D, its yield limit is 550 MPa, and the maximum stress of the boom is 520 MPa in a single-working condition; including the following step:

[0058] Step 1: Dugered arm structure geometric model discretization, taking a hexahedral solid unit on the arm structure, establishing a finite element analysis model;

[0059] Step 2: Under the finite element analysis model, the initial structure of the boom structure under each working condition is subjected to finite element static analysis, and the initial value of the rigidity index is obtained;

[0060] Step 3: Based on the finite element ...

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Abstract

The invention discloses a lightweight design method and structure for a movable arm of a loading machine. The lightweight design method comprises the following steps: discretizing a geometric model; on the basis of structural finite element statics analysis of multiple working conditions, optimizing a force transfer path to obtain a lightweight design scheme simultaneously meeting the multiple working conditions; and performing lightweight scheme size rounding and multi-working-condition checking, calculating rigidity and strength data of a comprehensive working condition according to a working condition weight coefficient, completing result evaluation, and outputting a final lightweight scheme. The invention further discloses a structural form of the light-weight movable arm of the loading machine, the light-weight movable arm comprises two symmetrically-arranged movable arm plates, and a plurality of lightening holes are distributed in the movable arm plates. By optimizing, checking and evaluating the multi-working-condition force transmission path of the movable arm structure, reasonable layout of materials is achieved, the structural weight is greatly reduced, the research and development period is shortened, the control flexibility of the whole machine is improved, and the labor intensity of a user and the use cost are reduced on the premise that the requirements for structural rigidity and strength and easy machining and manufacturing performance are met.

Description

Technical field [0001] The present invention discloses a light quantization design method and a structure in which the motor arm is loaded, and the technical field of construction machinery loaders is disclosed. Background technique [0002] The loader is a shovel transport machinery for shovel or transporting coal, ore, loose soil, corn and other materials. It has the advantages of fast operating speed, high efficiency, good motor performance, and light operation. It has become a current mechanization project. An indispensable equipment. [0003] A typical loader workfinder is mainly composed of a bucket, an boom, a link, a rocker arm, a dummy cylinder, and an boom cylinder. The structure and performance of the working device directly affect the operating dimensions and performance parameters of the whole machine. Therefore, the rationality of the working device directly affects the production efficiency of the loader, workload, power and motion characteristics, work effect unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F30/23G06F119/14
CPCG06F30/17G06F30/23G06F2119/14
Inventor 孟令超李晓枫常立壮魏加洁张梦龙郁干张朝永
Owner XCMG CONSTR MACHINERY
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