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A device and method for testing the tangential stiffness of the joint surface of the wheel disc

A technology of tangential stiffness and joint surface, which is used in measuring devices, using stable tension/pressure to test the strength and strength characteristics of materials, etc., to achieve the effects of easy implementation, convenient operation and simple structure

Inactive Publication Date: 2020-01-14
SHANGHAI INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a device and method for testing the tangential stiffness of the joint surface of the wheel disc, which solves the technical problem that there is still a lack of a device and method for testing the tangential stiffness of the joint surface of the wheel disc in the prior art

Method used

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  • A device and method for testing the tangential stiffness of the joint surface of the wheel disc
  • A device and method for testing the tangential stiffness of the joint surface of the wheel disc
  • A device and method for testing the tangential stiffness of the joint surface of the wheel disc

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Embodiment Construction

[0056] A specific embodiment will be described in detail below in conjunction with the accompanying drawings.

[0057] Please refer to figure 1 , a device for testing the tangential stiffness of the joint surface of the wheel disc, comprising a universal testing machine 1, a tie rod rotor 2, a digital display dial indicator 1 3, a digital display dial indicator 2 4 and a computer 7, and the universal testing machine 1 has its own The pressure sensor is connected with computer 7 by data line 6, can directly read pressure value from computer 7; The first 3 and the digital display dial indicator two 4 are located on both sides of the upper pressure head 105, the middle part of the frame 101 is provided with a movable beam 102, and two support blocks 104 are arranged at intervals on the beam 102, and the tie rod rotor 2 is horizontally set up on the two supports. On the block 104, the tie rod rotor 2 is located directly below the upper indenter 105. During the test, the crossbeam...

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Abstract

The invention relates to a device and a method for testing tangential rigidity of a junction surface of a wheel disc. The device comprises a universal testing machine, a pull rod rotor, a digital dial gauge I, a digital dial gauge II and a computer, wherein a pressure sensor arranged on the universal testing machine is connected with the computer by a data line; the universal testing machine further comprises a rack; an upper press head is arranged on the top of the rack; the digital dial gauge I and the digital dial gauge II are respectively positioned at two sides of the upper press head; a movable cross beam is arranged in the middle of the rack; two support blocks are arranged on the cross beam at an interval; the pull rod rotor is horizontally erected on the two support blocks; the pull rod rotor is positioned just under the upper press head. After the technical scheme is adopted, the technical problem that a device and a method which are used for testing the tangential rigidity of the junction surface of the wheel disc are lacked in the prior art can be solved.

Description

technical field [0001] The invention relates to a wheel disc of a disc tie rod rotor, in particular to a device and method for testing the tangential stiffness of the joint surface of the wheel disc. Background technique [0002] Disk-type circumferential tie-rod rotors are widely used in the field of gas turbines because of their ease of processing and cooling channel design. The disc-type circumferential tie rod rotor is formed by passing through the multi-stage wheel discs through several circumferential tie rods, and compressing the wheel discs by applying pre-tightening force to the circumferential tie rods. There are a large number of joint surfaces between the wheel discs, so that the mechanical The structure or system has discontinuity, which affects the overall performance of the mechanical system to a large extent, leading to the complexity of the problem. As an important part of the overall stiffness of the mechanical structure of the joint surface, the tangentia...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0019
Inventor 李俊南张锁怀吕超颖
Owner SHANGHAI INST OF TECH
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