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A narrow plate weighing device

A weighing device and narrow plate technology, applied in measurement devices, weighing, weighing equipment using elastically deformable parts, etc., can solve the problems of low dynamic response frequency, low stiffness, slow rebound speed, etc., to achieve dynamic The effect of high response frequency, high measurement accuracy and firm connection

Active Publication Date: 2021-06-29
KELI SENSING TECH NINGBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Bending plate axle load scales are thin in thickness, low in rigidity, large in deformation under the load of the wheel axle, slow in rebound speed, and low in dynamic response frequency, and are often not suitable for axle load weighing of high-speed running vehicles. At the same time, the bending plate axle load scale The accuracy of the system is also difficult to guarantee

Method used

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  • A narrow plate weighing device
  • A narrow plate weighing device
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Embodiment

[0020] see Figure 1 to Figure 3 , a narrow plate weighing device, comprising a plate body 1, the lower side of the plate body 1 is fixedly connected with anchor screws 16; the plate body 1 is provided with a plurality of cavities 2 parallel to each other, and the cavities 2 pass through the plate body At both ends, the edge of the plate body 1 is covered with a sealing layer 15; the plate body 1 forms a column 9 between the cavities 2, the bottom surface of the cavity 2 is fixed with a limit block 3, and the cavity 2 is filled with There is a damping material 14; the limit block 3 is linear, the limit block 3 is located on the axis of the cavity 2, the width of the column 9 is a, and the width of the limit block 3 is b, b>a; The upper side of the limiting block 3 is in clearance fit with the top surface of the cavity 2, the side wall of the column 9 is provided with a first strain gauge 4, the side wall of the limiting block 3 is provided with a second strain gauge 5, the fir...

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Abstract

The invention discloses a narrow plate weighing device, which relates to the technical field of weighing devices; it comprises a plate body, on which a plurality of cavities parallel to each other are arranged, and the plate body forms upright columns between the cavities. A first strain gauge is provided on the side wall of the column, and the first strain gauge is located on a first Wheatstone bridge. Surface clearance fit, the side wall of the limit block is provided with a second strain gauge, the second strain gauge is located on a second Wheatstone bridge, the negative pole of the output voltage terminal of the second Wheatstone bridge is connected to the first The negative pole of the output voltage terminal of a Wheatstone bridge is connected, the positive pole of the output voltage terminal of the second Wheatstone bridge is connected with the positive pole of the output voltage terminal of the first Wheatstone bridge, and the output voltage of the second Wheatstone bridge A relay is provided between the terminal and the output voltage terminal of the first Wheatstone bridge. The present invention has high dynamic response frequency.

Description

technical field [0001] The invention belongs to the technical field of weighing devices, in particular to a narrow plate weighing device. Background technique [0002] The wide application of overload detection devices provides a reasonable, economical and fast solution to control overloaded transportation and protect the safety of roads and bridges. The commonly used weighing devices are bent plate type and flat type. [0003] Bending plate axle load scales are thin in thickness, low in rigidity, large in deformation under the load of the wheel axle, slow in rebound speed, and low in dynamic response frequency, and are often not suitable for axle load weighing of high-speed running vehicles. At the same time, the bending plate axle load scale System accuracy is also difficult to guarantee. Contents of the invention [0004] The purpose of the present invention is to overcome the shortcoming of low dynamic response frequency in the prior art, and propose a narrow plate we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/03G01G3/14G01G3/142
CPCG01G3/1404G01G3/1414G01G3/142G01G19/035
Inventor 詹铭坚姚玉明柯建东胡文辉
Owner KELI SENSING TECH NINGBO CO LTD
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