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Creep test device

A creep test and screw technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of inability to load and unload the sensor, difficulty in measuring the creep and creep recovery of the sensor, and affecting the accurate calibration of the sensor.

Inactive Publication Date: 2010-12-29
KUNSHAN INNOVATION TESTING INSTR CO LTD
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Problems solved by technology

But none of them can realize a fast loading and unloading of the sensor, which brings certain difficulties to the measurement of creep and creep recovery of the sensor
Lever and hydraulic dynamometers also experience force fluctuations that affect accurate calibration of the sensor and even make it difficult to measure the creep characteristics of the sensor
[0007] In addition, due to a certain degree of sticking phenomenon in the deadweight dynamometer in the prior art, it will also adversely affect the creep test

Method used

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Embodiment Construction

[0015] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] figure 1 A schematic diagram of the structure of the force sensor calibration device is shown. like figure 1 The shown device includes a loading part 1 , a boom 2 and a weight synchronous loading and unloading device 3 .

[0017] The loading part 1 is used to apply load to the pressure or tension sensor to be calibrated, and its lower end is connected to the suspender 2; on the suspender 2, a plurality of weight driving mechanisms 3 are pierced.

[0018] figure 2 It is a schematic diagram of the structure of the loading part. like figure 2 As shown, the loading part 1 includes a motor 10 , a moving beam 12 , a reverse frame mechanism 13 and a screw 19 .

[0019] The moving beam 12 can move vertically along the threaded column 111 of the loading part 1 and can be fixed at any position of the thread, which has a tray 110 .

[0...

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Abstract

The invention relates to a creep test device for a dead standard force machine and is characterized by comprising a motor (10) and a screw (19). The screw (19) is in sliding connection with a reverse frame mechanism (13) of the dead standard force machine; the screw (19) and the reverse frame mechanism (13) are provided with mutually-matching limit components respectively so as to prevent the screw (19) and the reverse frame mechanism (13) separating from each other; and the motor (10) is used for driving the screw (19) and is in sliding connection of the reverse frame mechanism (13) of the dead standard force machine through the screw (19) so as to realize one-time loading or unloading for the creep test. The device can realize one-time fast loading / unloading during the creep test, namely that the device can be used as a hoisting device for initial loading and final loading of the creep test. Moreover, the device can avoid excessive force value fluctuation and reduce sticking so as to further improve the precision of the creep test.

Description

technical field [0001] The invention relates to a creep test device, in particular to a creep test device for a deadweight machine. [0002] The present invention also relates to a deadweight machine using the above-mentioned creep test device. Background technique [0003] The sensor is used to directly or indirectly contact the measured object, and convert the measured parameters into a signal that can be directly measured. It provides the system with the original information necessary for processing and decision-making, and is a key link in the modern detection system. With the emergence of various sensors, the production and measurement department is required to conduct comprehensive and accurate testing and verification, and provide consistent and reliable technical indicators. In the process of sensor testing, identification and calibration, the force standard machine, namely the force measuring machine, is the key equipment. [0004] The deadweight force measuring m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/12
Inventor 陶泽成
Owner KUNSHAN INNOVATION TESTING INSTR CO LTD
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