A pneumatic variable load multi-source impact test device

A technology of impact experiment and variable load, which is applied in the direction of testing the strength of materials with one impact force, which can solve the problems of poor adjustability and achieve the effect of various impact modes

Active Publication Date: 2022-02-11
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a pneumatic variable load multi-source impact test device, which indirectly controls the impact of the cylinder by controlling the on-off of the solenoid valve through the software module, so as to solve the problem of poor adjustability of the traditional impact test means

Method used

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  • A pneumatic variable load multi-source impact test device
  • A pneumatic variable load multi-source impact test device
  • A pneumatic variable load multi-source impact test device

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Experimental program
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Effect test

Embodiment 1

[0057] This embodiment is a pneumatic variable load multi-source impact test device, including hardware modules and software modules, as shown in the accompanying drawings. This device makes the single-chip microcomputer control the on-off of the solenoid valve to indirectly control the impact of the cylinder through the software module, and does not expand the impact source (N=1), as follows:

[0058] The hardware module is composed of an air compressor 2, a cock valve 3, a pressure regulating valve 4, a shunt joint 5, a power module 1, a single-chip microcomputer 12, a solenoid valve 6, and a cylinder 9. The air compressor 2, single-chip microcomputer 12, and solenoid valve 6 are all wired and electrically connected to the power module 1; the air compressor 2, cock valve 3, pressure regulating valve 4, shunt joint 5, solenoid valve 6, and cylinder 9 connected to each other by air ducts. In particular, the power supply module 1 supplies AC220V, DC5V, and DC12V to the air com...

Embodiment 2

[0071] On the basis of Embodiment 1, the cylinder 9 is changed to a standard cylinder SC63×25, and its theoretical output table is as follows:

[0072] Table 2 Standard cylinder SC63×25 theoretical output table

[0073]

[0074] The unit of force in Table 2 is N. The calculation method of the actual output value is the same as that of the standard cylinder SC32×25 in Embodiment 1.

Embodiment 3

[0076] On the basis of Embodiment 1, one impact source is expanded, and the total number of impact sources is two, that is, N=2.

[0077] After the splitter joint 5 divides the gas delivered by the air guide tube 16 , it is delivered to the solenoid valves 6 , 7 through the air guide tubes 18 , 19 .

[0078] Further, the single-chip microcomputer 12 controls the on-off of the solenoid valves 6, 7, and further controls the impact of the cylinders 9, 10.

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Abstract

The invention discloses a pneumatic variable load multi-source impact test device, which comprises a hardware module and a software module. The hardware module consists of an air compressor, a plug valve, a pressure regulating valve, a shunt joint, a solenoid valve, a cylinder, a single-chip microcomputer, and a power supply module. Among them, the cylinder is the impact actuator, which has the characteristics of flexible installation and support for expansion. By adjusting the position and quantity of the cylinder, the position and angle of multi-source impact can be set; the software module can realize the impact number, impact time and impact. load control. The invention aims to provide a multi-degree-of-freedom, low-frequency, variable-load multi-source impact experimental device for impact monitoring research.

Description

technical field [0001] The invention relates to a pneumatic variable load multi-source impact test device, which belongs to the field of structural state monitoring. Background technique [0002] Materials and their components are often impacted by different types of loads during service, resulting in damage or structural deformation of materials and components, resulting in deterioration of their mechanical properties and potential safety hazards. Therefore, it is of great significance to carry out condition monitoring (especially impact monitoring) on ​​materials and their structures. [0003] At present, the widely used impact devices include: drop hammer impact damage device, vibration exciter device and hand-held impact hammer, etc. However, the existing impact devices have single impact direction, poor controllability of impact load and time, and expansion of impact point. The difficulty and other shortcomings limit the research of impact monitoring to a certain exten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/30
CPCG01N3/30
Inventor 李鹏彭嘉潮黄刘伟黄培炜刘根柱
Owner EAST CHINA JIAOTONG UNIVERSITY
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