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Piezoelectric type dynamic strip-shaped weighing plate

A weighing plate, piezoelectric technology, applied in the field of vehicle axle-loaded strip weighing plate, can solve the problems of expensive counterfeiting, weighing sensor manufacturing, and complicated assembly process, and achieve convenient debugging and installation, simple structure, and dynamic large scale effect

Inactive Publication Date: 2010-01-13
江西省哲辉创新科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the counterfeiting of this system is expensive, and the manufacturing and assembly process of the load cell is relatively complicated.

Method used

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  • Piezoelectric type dynamic strip-shaped weighing plate
  • Piezoelectric type dynamic strip-shaped weighing plate
  • Piezoelectric type dynamic strip-shaped weighing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Below in conjunction with accompanying drawing, structural principle and working principle of the present utility model are described in detail.

[0020] refer to Figure 1 , The weighing bar-shaped weighing plate involved in the present invention mainly includes: an upper cover plate 1, a lower cover plate 2, and a structured quartz crystal group 4 composed of three parts. The whole structure is combined by the upper cover plate 1 and the lower cover plate 2 by fastening the pre-tightening bolts 3. In order to achieve the sealing effect, the joint is sealed by welding. The cross section of the upper cover plate 1 and the lower cover plate 2 is I-shaped, and the junction of the upper cover plate 1 and the lower cover plate 2 is provided with a concave groove, and a structured quartz crystal group 4 is installed in the concave groove, and the electric charge generated by it Lead out via electrode 6. The entire strip-shaped weighing plate is installed inside the groove ...

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Abstract

The invention discloses a piezoelectric type dynamic strip-shaped weighing plate, which mainly comprises an upper cover plate, a lower cover plate and a structured quartz crystal set. The piezoelectric type dynamic strip-shaped weighing plate is characterized in that the upper cover plate and the lower cover plate are combined together by fastening a pretension bolt, the section of the upper cover plate and the section of the lower cover plate are both in I shapes, a groove is arranged at the combination part of the upper cover plate and the lower cover plate, the structured quartz crystal set is installed in the groove, and a deduced electrode is arranged on the quartz crystal set. In the invention, a piezoelectric quartz is utilized as a sensitive element, a structured element is embedded into a beam structure which is designed in an optimized mode so as to construct the strip-shaped weighing plate used for dynamically weighing a vehicle, and a separate structure is adopted, thereby the invention has the advantages of simple structure, convenient processing, debugging and installation, large dynamic range, high measurement accuracy and the like.

Description

technical field [0001] The invention relates to a bar-shaped weighing plate loaded on a vehicle axle, in particular to a quartz weighing plate used for dynamic weighing of a vehicle based on the piezoelectric effect. Background technique [0002] Weigh in motion (WIM) is an important part of intelligent transportation system. Quickly and accurately measuring the axle load of automobiles is of great significance to the operation, management, maintenance and law enforcement of highways. Especially after entering the 1990s, with the development of the economy, the problem of vehicle overloading in transportation has become increasingly serious, and these problems have seriously affected the safety of road transportation and the service life of road systems, making the maintenance costs of road transportation facilities excessively increased. The traditional overload detection requires the vehicle to be stopped for inspection, which greatly reduces the measurement efficiency. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G19/03
Inventor 李晓宝赵立波梁建强刘小勇吴伟民胡琼清刘红生何耀忠赵玉龙张碧波张良吉吴典泽刘旭彭恢湘
Owner 江西省哲辉创新科技有限公司
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