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Device and method for measuring contact load of moving object

A technology for measuring devices and moving objects, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problem of inability to obtain local loads, achieve compact structure, convenient operation, and avoid the waste of materials.

Active Publication Date: 2022-03-01
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The applicant provides a measuring device and method for measuring the contact load of a reasonable moving object in view of the fact that the partial load during the actual movement of the similar piston-sleeve sliding structure cannot be obtained in the above-mentioned existing production technology, especially the contact load. In this way, the dynamic measurement of the contact load of the workpiece during the movement process can be realized, and the mechanical environment of the workpiece in the actual operation process can be accurately perceived, which is convenient for improving the refinement of the structural design, carrying out the optimal design, and providing a technical solution for the development of related test designs

Method used

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  • Device and method for measuring contact load of moving object
  • Device and method for measuring contact load of moving object
  • Device and method for measuring contact load of moving object

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The measuring method of the measuring device of the moving body contact load of the present embodiment comprises the following steps:

[0065] The first step, preparation work:

[0066] Design the specific structural forms of the fixed load measuring device 2 and the sliding load measuring device 3 according to the measurement requirements;

[0067] Make the sliding measurement body 301 and the fixed measurement body 201 according to the design drawings;

[0068] Install the strain sensitive element 6 on the weakened groove 302 of the slip measurement body 301;

[0069] Install the strain sensitive element 6 on the bottom surface of the counterbore 204 of the fixed measuring body 201;

[0070] The second step, coefficient calibration:

[0071] The strain sensitive elements 6 of the fixed measuring body 201 and the sliding measuring body 301 are respectively composed of measuring circuits, and connected with the electrical signal amplification and acquisition equipmen...

Embodiment 2

[0085] The measuring method of the measuring device of the moving body contact load of the present embodiment comprises the following steps:

[0086] The first step, preparation work:

[0087] Design the specific structural forms of the fixed load measuring device 2 and the sliding load measuring device 3 according to the measurement requirements;

[0088] According to the design drawings, the slip measurement body 301 is made. The slip measurement body 301 is a cylindrical structure with a weakened groove 302 inside.

[0089] Make the fixed measuring body 201 according to the design drawings, the fixed measuring body 201 is a ring structure, the fixed measuring body 201 is provided with a counterbore 204, the counterbore 204 is vertically arranged along the horizontal axis, and the number of the counterbore 204 is four;

[0090] The strain-sensitive element 6 is installed on the bottom of the weakened groove 302 of the slip measurement body 301, arranged evenly, and the numb...

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Abstract

The invention relates to a device and method for measuring the contact load of a moving object, and the device comprises a piston rod, one end of the piston rod is provided with a piston, the piston and the piston rod extend into a sleeve with an opening at one end, the periphery of the piston is in contact fit with the inner wall of the sleeve, and the piston is connected with the piston rod through a sliding load measurement device. A fixed load measuring device is installed on the end face of the opening of the sleeve, the sliding load measuring device measures the contact force of the piston and the piston rod in the sliding motion, and the fixed load measuring device measures the contact force of the piston rod and the end face of the opening of the sleeve in the relative motion process. Therefore, dynamic measurement of the contact load of the workpiece in the movement process is achieved, the mechanical environment of the workpiece in the actual operation process is accurately sensed, the refinement degree of structural design is conveniently improved, optimization design is conveniently carried out, and meanwhile a technical scheme is provided for development of related test design.

Description

technical field [0001] The invention relates to the technical field of load experiments and tests, in particular to a measuring device and a measuring method for contact loads of moving objects. Background technique [0002] The load of the workpiece during operation is an important parameter concerned in the structural design optimization process. The traditional design method is to simplify the operating environment of the workpiece, obtain the individual stress of each component through static strength tests or numerical simulations, and multiply by A certain safety factor, and then design and optimization method, this method can guarantee the safety of the workpiece structure within a certain range, for the local load, especially the contact load, which is received during the actual movement of the workpiece, this method cannot be obtained, so Lack of certain accuracy, and contact load is the primary cause of workpiece wear and damage, resulting in shortened actual servi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
CPCG01L5/00
Inventor 陈佳慧许统华李博王宝寿
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)