Load determination method for test hinge points of pressing frame of hydraulic support based on virtual prototype technology

A virtual prototype technology and hydraulic support technology are applied in the field of determining the hinge point load of the hydraulic support press frame test, which can solve problems such as lack of in-depth research, and achieve the effect of avoiding manpower and material resources and shortening the product design cycle.

Pending Publication Date: 2020-12-08
NORTHEASTERN UNIV
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Problems solved by technology

[0005] According to the survey, in previous studies, finite element software was usually used to conduct static analysis on it to obtain the stress cloud map of the support in a certain state and the strain data at key positions. The relationship over time has not been studied in depth

Method used

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  • Load determination method for test hinge points of pressing frame of hydraulic support based on virtual prototype technology
  • Load determination method for test hinge points of pressing frame of hydraulic support based on virtual prototype technology
  • Load determination method for test hinge points of pressing frame of hydraulic support based on virtual prototype technology

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Embodiment Construction

[0023] The following is attached Figure 1-6 Shown, the present invention is further described.

[0024] The method for determining the hinge point load of hydraulic support press frame test based on virtual prototype technology includes the following steps:

[0025] S1, through the general assembly drawing of a type of hydraulic support, extract the positional relationship between the hinge points and the exact coordinate spacing size, and establish a simplified three-dimensional model diagram of the type of hydraulic support with roof protection, as shown in figure 1 shown. It consists of a top beam 1, a column 2, a balance jack 3, a cover beam 4, a rear link 5, a front link 6, and a base 7. Top beam 1 is hinged to cover beam 2, one end of top beam 1 is hinged to column 2, one end of top beam 1 is hinged to balance jack 3, the other end of cover beam 4 is hinged to balance jack 3, and one end of cover beam 4 is hinged to rear connecting rod 5. Shield beam 4 is hinged with...

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Abstract

The invention belongs to the field of hydraulic support pressure frame test hinge point load determination, and particularly relates to a load determination method for test hinge points of a pressingframe of a hydraulic support based on virtual prototype technology, which comprises the following steps: S1, extracting the position size of a final assembly hinge point to establish a simplified three-dimensional model of the hydraulic support; wherein the support three-dimensional model is used for providing structural consistency for a virtual prototype for establishing a hinge point load determination method; S2, installing loading cushion blocks at the two ends of a top beam and used for arranging the positions of test pressing blocks of the pressing frame; S3, establishing a model hingepoint connection relationship which is used for establishing a connection relationship of all joints of lifting action of the virtual prototype for a pressure frame test; and S4, adding driving and cushion block loading parameters for setting of parameters such as lifting action and loading force of the hydraulic bracket and the penetration depth of the pressing block. Based on the virtual prototype technology, the virtual prototype model of the lifting support is established, the method for determining the base hinge point load change in the movement process is provided, and feedback is provided for hydraulic support design engineers.

Description

technical field [0001] The invention belongs to the field of determination of hinge point loads of hydraulic support frame press tests, in particular to a method for determining hinge point loads of hydraulic support frame press tests based on virtual prototype technology. Background technique [0002] Hydraulic support plays an important role in the mining of coal mines and other mines. As a mine mining support machine, its main function is to support the rock and soil layer, ensure the safety of the mine during mining, and provide workers with operating space during the mining process. , to ensure the safe operation of excavators and scraper conveyors, and to prevent rock and soil from falling off, so its safety needs to be attached great importance to. [0003] Because the top beam bears the pressure load of the rock and soil layer, the load at the hinge point changes greatly during the process of lifting and lowering the frame until it stabilizes, and accidents are inevi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20E21D23/16
CPCE21D23/16G06F30/20
Inventor 罗忠杨洪朋马辉韩清凯杨东升林君哲李响
Owner NORTHEASTERN UNIV
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