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Multifunctional bolt group comprehensive test bench and measurement and control system

A technology of comprehensive test bench and bolt group, applied in the direction of measuring device, testing of mechanical components, testing of machine/structural components, etc., can solve the problems of complicated operation, reducing the workload of bolt testing, and single function of bolt testing bench, etc. Achieve the effect of improving test efficiency, reducing test workload, enhancing R&D strength and economic benefits

Pending Publication Date: 2018-04-20
CHONGQING HAO HAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the common bolt test benches on the market mainly include tension bolt test benches, overturning moment bolt test benches and shear bolt test benches. Intuitively, the research and development of an intelligently controlled comprehensive bolt test bench is of great significance to reduce the workload of bolt tests, improve test efficiency, and obtain accurate stress change processes of bolts under load.

Method used

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  • Multifunctional bolt group comprehensive test bench and measurement and control system
  • Multifunctional bolt group comprehensive test bench and measurement and control system
  • Multifunctional bolt group comprehensive test bench and measurement and control system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The multifunctional bolt group comprehensive test bench is characterized in that: it mainly includes a bench 1, a base 7, a hydraulic cylinder 10, a mounting table 11, an overturning test plate 12, a shear test plate 13 and a tensile test plate 14.

[0049] The platform 1 includes a top plate and a support column. Four support columns support the top plate above the base 7.

[0050] A hydraulic cylinder 10 that can slide horizontally is installed below the top plate. The piston rod of the hydraulic cylinder 10 faces the installation platform 11 installed on the base 7 . In the embodiment, the hydraulic cylinder 10 is installed on the stepping motor slide table 2. The stepper motor slide table 2 includes a slide rail fixed below the top plate. There is a slider on the slide rail. The slider is driven by a stepping motor. Described hydraulic cylinder 10 is fixed below the slide block.

[0051] The mounting table 11 is a hollow cube hollowed out on all sides. A meta...

Embodiment 2

[0068] Based on the multifunctional bolt group comprehensive test method of the test bench described in embodiment 1:

[0069] Such as Figure 5 As shown, eight tested bolts can be set. In order to accurately measure the stress change process of the bolts under different loads, this embodiment is Figure 5 Five strain gauges are symmetrically arranged in the position shown (the strain gauges are installed on the measured bolts), which is convenient for comparative analysis of the change process of bolt stress under different loads, so as to obtain accurate bolt stress change data.

[0070] include:

[0071] Overturning test:

[0072] Such as figure 2 As shown, the mounting table 11 is rotated to figure 2 In the position shown, the plate surface of the support plate is perpendicular to the upper surface of the base 7, the support column 5 is locked with the mounting table 11, the hydraulic cylinder 10 slides to the handle of the overturning plate 12 through the stepping m...

Embodiment 3

[0079] The multifunctional bolt group measurement and control system based on the test method described in embodiment 2 is characterized in that, comprising the following steps:

[0080] The working process of the measurement and control system of the multifunctional bolt group comprehensive test bench is as follows: Figure 7 shown. The hydraulic principle of the hydraulic cylinder action used in this embodiment is as follows: Figure 6 As shown, after the motor 19 starts, it drives the pump 18 to input high-pressure oil to the system. The speed regulating valve 21 controls the flow rate of hydraulic oil input in the hydraulic cylinder 24 to achieve the purpose of controlling the speed of the hydraulic cylinder. The system uses the telescopic tension and compression spring 26 of the hydraulic cylinder 24, so that the spring can apply the required test load to the optional installation platform 11 of the bolt connection mechanism. The adjustable throttle valve 10 controls t...

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PUM

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Abstract

The invention discloses a multifunctional bolt group test bench and a measurement and control system. The multifunctional bolt group test bench mainly includes a rack, a base, a hydraulic cylinder, aninstallation table, an overturn test board, a shear test board and a tensile test board. A multifunctional bolt group comprehensive test method based on the test bench includes overturn test, shear test and tensile test. The multifunctional bolt group test bench and the measurement and control system designed by the invention can reduce the workload of bolt test, improve the test efficiency, obtain accurate stress change data of bolts after loading, provide basic data for enterprises researching, developing and producing bolts and related materials, and enhance the research and development strength and economic benefit of relevant enterprises.

Description

technical field [0001] The invention relates to the detection of mechanical properties of mechanical parts. Background technique [0002] Bolt connection is a widely used connection form in machines, and it is often a detachable connection. It is widely used in the mechanical field, such as the flange connection of hydraulic cylinders in fluid transmission, the connection between cylinder head and cylinder block in automobile engines, etc. How to accurately test and analyze the different stress changes caused by the bolt group under the action of static load or dynamic load is an important problem faced by engineers and technicians. [0003] At present, the common bolt test benches on the market mainly include tension bolt test benches, overturning moment bolt test benches and shear bolt test benches. It is intuitively shown that the research and development of an intelligently controlled comprehensive bolt test bench is of great significance to reduce the workload of bolt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 杨岩梁举科
Owner CHONGQING HAO HAN TECH CO LTD