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Rotary bending fatigue tester

A bending fatigue and testing machine technology, applied in the direction of applying repetitive force/pulsation force to test the strength of materials, can solve the problems of strict size and shape requirements, limited application, etc., and achieve the effect of easy operation, low cost and good self-control performance

Inactive Publication Date: 2008-08-06
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the disadvantage of this testing machine is that it has strict requirements on the size and shape of the sample, and it can only perform fatigue tests on samples of several sizes and shapes, thus limiting its application on light metals such as magnesium alloys

Method used

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Embodiment Construction

[0022] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0023] As shown in Figure 1, the present embodiment includes: a support 5, a motor system, a control system, a loading system, and a balance system, wherein the motor system, the control system and the balance system are fixed on the support 5, and the load system passes through the balance system Suspended in the air. The motor system is used to drive the fatigue sample 14 to rotate, the control system is used for the connection of various parts and the operation of the whole equipment and to record the test data, the loading system is used to clamp the sample 14 and...

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Abstract

A rotating bending fatigue tester belonging to the material testing technical field comprises a machine base, an electric machine system, a control system, a balancing system and a loading system. The electric machine system, the control system and the balancing system are fixed on the machine base, while the loading system is suspended in the air through the balancing system. The electric machine system is used to drive a fatigue test sample to rotate, the control system is used to connect the components, run the whole device and record the sample data, the loading system is used to hold the sample and provide a load, while the balancing system is used to balance out the weight which holds the sample and is suspended on one end in the air in the loading system. The invention is applicable to carrying out the rotating bending high cycle fatigue test of the magnesium alloy standard sample with a maximal rotating speed of 6000r / Min, thereby greatly saving test time and cost. Furthermore, the rotating bending fatigue tester can grasp samples of various sizes and shapes meeting the state standard with accurate experimental data, simple structure, and easy operation.

Description

technical field [0001] The invention relates to equipment in the technical field of testing, in particular to a rotating bending fatigue testing machine for testing the fatigue life and fatigue strength of metal materials. Background technique [0002] Fatigue testing machine is a kind of testing equipment for testing the fatigue life and fatigue strength of metal (or non-metal) materials, mainly including hydraulic servo type, electromagnetic type and mechanical type. Among them, the hydraulic servo fatigue testing machine is a more advanced testing device, but the price is high. In addition, when working at low frequency, the power consumption is large and the cost is high, so it needs to be used in conjunction with other low frequency fatigue testing machines. The frequency of the electromagnetic fatigue testing machine is high, and it is mainly used in the test of the fatigue performance of ferrous metals with good fatigue performance. Most of the mechanical test equipm...

Claims

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Application Information

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IPC IPC(8): G01N3/34
Inventor 刘文才董杰张平翟春泉
Owner SHANGHAI JIAO TONG UNIV
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