Hydraulic multifunctional test stand for heading machine

A multi-functional, test-bed technology, applied in the testing of fluid pressure actuation systems, mechanical equipment, fluid pressure actuation devices, etc., can solve the problems of system pollution, no hydraulic system, etc., to improve system efficiency, advanced control methods, Small footprint effect

Active Publication Date: 2016-02-10
TAIYUAN INST OF CHINA COAL TECH & ENG GROUP +1
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  • Claims
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Problems solved by technology

[0003] In order to solve the problem that there is no test device for the hydraulic system of the roadheader in the prior art, and the debugging of the hydraulic system needs to be installed on the

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  • Hydraulic multifunctional test stand for heading machine
  • Hydraulic multifunctional test stand for heading machine
  • Hydraulic multifunctional test stand for heading machine

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Embodiment Construction

[0030] The specific embodiment of the present invention will be further described in conjunction with the accompanying drawings.

[0031] 1. Working principle of LS and LUDV system:

[0032] At present, the hydraulic system of our roadheader generally adopts the load sensing control system, that is, the LS load feedback control technology. The system usually consists of a variable displacement pump and a load sensing multi-way valve. With the load sensing variable system, the pump can automatically adjust the swash plate swing angle of the variable pump through the load pressure of the LS port according to the load, so that the flow of the pump is always equal to the flow required by the actuator. When the load pressure rises, the swing angle of the pump is automatically adjusted smaller, and the flow rate of the pump decreases. On the contrary, the swing angle of the pump increases, and the output flow becomes larger.

[0033] However, LS load sensing technology also has d...

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Abstract

The invention belongs to the technical field of test equipment of a hydraulic system in coal mine heading equipment, particularly relates to a hydraulic multifunctional test stand for a heading machine, and solves the problems that working hours are wasted and pollution to the system is caused due to the fact that the test device for the hydraulic system for the heading machine is absent in the prior art, and the hydraulic system is required to be mounted on the whole machine for debugging. The hydraulic multifunctional test stand comprises a main test module unit which comprises a hydraulic pump test module, a hydraulic motor test module, a hydraulic oil cylinder test module and a hydraulic valve test module. According to the hydraulic multifunctional test stand, early-stage component test research is provided for the heading machine in aspect of an advanced technology, and a design and development period of the whole machine is shortened, so that the product seizes the market in first time. Meanwhile, using performances of key components of the heading machine also can be improved, so that the reliability of the whole machine is improved, the maximal effect of the heading machine is brought into play, and the core competitive capacity, on the market, of the heading machine product is improved. The hydraulic multifunctional test stand has a relatively great market prospect.

Description

technical field [0001] The invention belongs to the technical field of testing equipment for hydraulic systems in coal mine tunneling equipment, and in particular relates to a hydraulic multifunctional test bench for a tunneling machine. Background technique [0002] With the development of my country's hydraulic industry, the hydraulic system has been widely used in the field of coal mining machinery in my country. For example, the hydraulic system of the roadheader adopts a load-sensitive control system composed of a load-sensitive variable pump and a load-sensitive proportional multi-way valve for the first time (ie LS, LUDV system), the system has been widely used in the domestic roadheader industry due to its reliable performance, compact structure and multi-function. The application of this technology has greatly improved the performance of domestic roadheaders, accumulated rich technical experience for the development of roadheaders in my country, and laid a technical ...

Claims

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Application Information

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IPC IPC(8): F15B19/00
CPCF15B19/007
Inventor 权钰云闫晶邵晋敏葛秦龙毛继伟白雪峰刘子靖刘茵吴晋军王瑶
Owner TAIYUAN INST OF CHINA COAL TECH & ENG GROUP
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