Opening type anti-eccentric-loading three elastic cylinders load cell

A load sensor and eccentric loading technology, which is applied to the weighing equipment and measuring devices using electromagnetic balance, and can solve the problems such as the inability to guarantee the measurement accuracy of the sensor and the difficulty of on-site installation of the hollow cylindrical sensor.

Inactive Publication Date: 2007-09-12
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Due to the very harsh working environment of pumping wells, as a load sensor for long-term monitoring, it is very difficult to install the hollo

Method used

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  • Opening type anti-eccentric-loading three elastic cylinders load cell
  • Opening type anti-eccentric-loading three elastic cylinders load cell
  • Opening type anti-eccentric-loading three elastic cylinders load cell

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Embodiment Construction

[0012] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] Referring to Fig. 1, the present invention includes an open-type lower bearing plate 1, three identical high-strength manganese steel elastic columns 2, 4 and 6 are arranged on the lower bearing plate 1 and a positioning groove 3 is provided at the installation position of each elastic column , the three elastic columns 2, 4 and 6 are distributed in an equilateral triangle on the lower bearing plate 1, the amplifying circuit board 5 is vertically fixed on the lower bearing plate 1, and the side of the lower bearing plate 1 is connected to the curved housing 7 and has a fixed socket 9 The upper end of the three elastic columns 2, 4 and 6 is connected to the upper bearing plate 8, because the elastic columns 2, 4 and 6 will be slightly deformed after being loaded, the upper bearing plate 10 and the curved ...

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Abstract

This invention relates to a load transducer of open type, resisting eccentricity loaded and three elastic posts. Connect three selfsame elastic posts on the open type lower loading plate; built-in amplifying circuit board attach with three elastic posts; lower loading plate's side connect with curve type shell and strap; Upper end of three elastic posts attach upper loading plate; pros and cons of elastic post middlepiece all paste two piece strain gauge and connector; strain gauge's led feet monogamy connect with connector, connector by wire join to amplifying circuit board; this invention adopt open type low-short structure, via amplifying circuit board built-in load transducer to realize three elastic post's strain signal summation, even if load eccentricity will not impact accuracy of measurement. amplifying circuit panel gain precise load signal by amplify cumulative strain signal, and translate these signal into two-wire channel current signal to make remote transmission.

Description

technical field [0001] The invention relates to a load sensor, in particular to an open-type anti-eccentric loading three-elastic column load sensor. Background technique [0002] Load sensors are widely used in industrial field measurement and test technology, usually they need to be embedded in the structure under test to achieve load transmission and measurement. For the bar structure widely used in the industrial field, the hollow cylindrical sensor is usually used to measure the axial load of the bar, which requires opening one end of the bar to be tested, inserting the hollow cylindrical sensor and reconnecting the bar to be tested The difficulties are: 1. It is difficult to install, and it is often expensive to disassemble the measured structure at the industrial site; 2. It is difficult to control the position of the loading point, and the sensor usually works in an eccentric loading state. In order to make the hollow cylinder in the sensor The strain measurement po...

Claims

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Application Information

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IPC IPC(8): G01G7/02
Inventor 徐明龙卢天健陈振茂徐立勤
Owner XI AN JIAOTONG UNIV
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