Strength testing device

A technology of strength testing and cylinder body, which is applied in the direction of measuring devices, testing of mechanical components, testing of machine/structural components, etc., to achieve the effects of simple structure, avoiding damage to electric devices, and convenient operation

Inactive Publication Date: 2015-05-20
TIANJIN AIKETE MEASUREMENT CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no mechanical strength testing device with a rea

Method used

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Embodiment

[0020] Such as figure 1 , 2 As shown, this embodiment discloses a strength testing device, which includes a base 1 and a cylinder 3 installed on the base;

[0021] There is a cavity 9 inside the cylinder, in which an adjusting lead screw 2, a compression sleeve 4, a thrust rod 6, and a cam 7 are sequentially installed along the axis of the cylinder. internal thread, the adjusting screw rod passes through the opening and extends into the cavity, and the adjusting screw rod is threadedly connected with the opening;

[0022] The compression sleeve is sleeved on one end of the thrust rod, and the inner cavity of the compression sleeve is tubular or cylindrical, and a blocking part is arranged in the cavity, and the extending end of the adjusting screw rod abuts against the blocking part; Driven, the compression sleeve can move horizontally on the thrust rod;

[0023] The other end of the thrust rod is provided with a limiting boss 10, which is integrally formed with the thrust ...

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PUM

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Abstract

The invention provides a strength testing device including a base and a cylinder body arranged on the base. A cavity is arranged inside the cylinder body; an adjusting screw rod, a compression sleeve, a thrust rod, and a cam are successively arranged in the cavity along the axial direction of the cylinder body; the adjusting screw rod penetrates through the cylinder body and extends into the cavity; the compression sleeve sleeves one end of the thrust rod; a blocking part is arranged in the compression sleeve; the extending-in end of the adjusting screw rod abuts against the blocking part; under the driving of the adjusting screw rod, the compression sleeve can horizontally slide on the thrust rod; the other end of the thrust rod is provided a position-specified boss which is integrated with the thrust rod; a spring is arranged between the compression sleeve and the thrust rod; the spring is sleeved with the thrust rod; the two ends of the spring respectively abut against the compression sleeve and the position-specified boss; the cam is arranged on the axis of the cylinder body and is elliptical in shap; the distance from the shaft hole to the position-specified boss is equal to the length of the semi-minor axis of the cam; and the strength testing device is further provided with a transmission shaft which is vertical to the axis of the cylinder body, penetrates through the cylinder body, and has one end fixed to the cam.

Description

technical field [0001] The invention relates to a strength testing device of an electric device. Background technique [0002] The electric device (also known as the electric actuator) is the driving device of the electric valve, which is used to control the opening and closing of the valve. It is an indispensable driving device for remote, centralized and automatic control of the valve. It is widely used in power stations, petrochemical , metallurgy, mining and public utilities and other fields, so the mechanical strength test of the device is required before the electric device is put into use. [0003] The mechanical strength test is that after the electric device outputs about 2 times the rated output torque value in a short period of time, all internal bearing parts should not be deformed or damaged. At present, there is no mechanical strength testing device with a reasonable structure to test the mechanical strength of the electric device. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): G01M13/00
Inventor 曹式录高亮亮王婷婷张丽芳高洪庆
Owner TIANJIN AIKETE MEASUREMENT CONTROL TECH
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