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Self-powered dynamic weighing device based on magnetostrictive material and working method

A magnetostrictive material and dynamic weighing technology, applied in piezoelectric effect/electrostrictive or magnetostrictive motors, electromechanical devices, measuring devices, etc. Large area and other problems, to achieve the effect of easy installation, high sensitivity and small structure

Active Publication Date: 2021-04-20
HANGZHOU DIANZI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing dynamic weighing systems, such as: resistive dynamic weighing device, bent plate dynamic weighing device, etc., all have problems such as large equipment footprint, cumbersome installation, and large excavation area on the road surface for embedding wires.

Method used

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  • Self-powered dynamic weighing device based on magnetostrictive material and working method
  • Self-powered dynamic weighing device based on magnetostrictive material and working method
  • Self-powered dynamic weighing device based on magnetostrictive material and working method

Examples

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Effect test

Embodiment 1

[0032] Such as figure 1 and 2 As shown, a piezoelectric dynamic weighing device based on magnetostrictive materials includes a base 1, a support plate 6, a load-bearing column 17, a guide assembly, a weighing assembly and a self-powered assembly. Bearing column 17 adopts polymer nylon rubber. The weighing assembly includes a piezoelectric sensor 8 and a piezoelectric sheet holder 9 . Bolt holes are drilled on the ears extending from the bottom of the piezoelectric sheet holder 9, and the center position of the piezoelectric sheet holder 9 and the top surface of the base 1 is fixed with bolts. The top of the piezoelectric sheet holder 9 is provided with a sensor installation groove. A piezoelectric sensor 8 with a detection surface facing up is installed in the sensor installation groove. The piezoelectric sensor 8 includes four piezoelectric sheets connected in series; the signal output line of the piezoelectric sensor 8 is connected to the signal processing module. The s...

Embodiment 2

[0047] The difference between this embodiment and Embodiment 1 is that: the side of the blade of the impeller 12 is parallel to the axis of the impeller 12, so that the blade is easier to bend after touching the magnetostrictive rod 13-1, reducing capacity loss.

Embodiment 3

[0049] The difference between this embodiment and Embodiment 1 is that the final output gear is connected to the output shaft through a one-way bearing; so that the final output gear can only drive the output shaft to rotate in one direction, thereby avoiding the Output rotating shaft and impeller 12 continue to rotate.

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Abstract

The invention discloses a self-powered dynamic weighing device based on a magnetostrictive material and a working method. The device comprises a base, a supporting plate, a bearing column, a guide assembly, a weighing assembly and self-energizing assemblies. The weighing assembly is installed on the base. The guide assembly is installed on the base. A cross beam capable of sliding up and down is arranged in the guide assembly. The bearing column is fixed to the cross beam, the bottom end of the bearing column abuts against the weighing assembly, and the top end of the bearing column is fixed to the supporting plate. One or more energy supply arms are arranged on the cross beam. The energy supply arms are made of an elastic material. The number of the self-energizing assemblies corresponds to the number of the energy supply arms. The self-energizing assembly comprises a pushing plate, a transmission assembly, an impeller and a magnetostriction energy collection module. The magnetostriction energy collection module is installed on the base and comprises a magnetostriction rod, an induction coil and a permanent magnet. According to the working method, parameters such as the vehicle speed, the wheel distance and the axle number of the vehicle are measured and calculated by detecting the time of each wheel, and comprehensive data acquisition of vehicles passing through the road can be realized.

Description

technical field [0001] The patent of the present invention relates to the technical field of vehicle dynamic weighing, in particular to a self-powered dynamic weighing device based on magnetostrictive materials and a working method. Background technique [0002] In order to protect the road surface and bridges from being damaged by overweight vehicles, more and more roads are now carrying out weighing inspections on vehicles. The current mainstream weighing devices are divided into dynamic weighing and static weighing. Compared with dynamic weighing, static weighing is not affected by external force, so its error is relatively small, but it cannot measure its single axle weight. And when the vehicle is weighed, the passing speed of the lane decreases, resulting in a significant reduction in lane traffic efficiency and unnecessary traffic jams. The dynamic weighing is to complete the weighing detection when the vehicle is running normally, which saves the detection time and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03G01G23/00G01D21/02H02N2/18H02K35/04H02J7/34
Inventor 王云何流鲍秉德燕国良王翔黄依凡
Owner HANGZHOU DIANZI UNIV
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