Electronic weighing scale C of loader

Abstract

The present invention discloses a loader electronic scale C which belongs to the weighting and metering device and settles the technical problem of big error caused by modifying the weighting and measuring value by installing proximity switch on the loader and detecting the position of the bucket with a disconnected point form in the existing technique. The electronic scale comprises a loader large arm (1), a hydraulic push rod (2), a pressure sensor (3) and a secondary instrument (4), a teeth bar (5) is arranged between the loader large arm (1) and the loader body, one end of the teeth bar (5) is permanently connected to the loader large arm (1), and the other end of the teeth bar (5) is moveably arranged on the loader body and is engaged with the gear (6); the loader body is also arranged with a rotary encoder (7) and the gear (6) is arranged on the mechanical input end of the rotary encoder (7), and the electric output end of the rotary encoder (7) is electrically connected to the secondary instrument (4). The electronic scale of the invention has the advantages of simple structure, convenient maintenance, and increasing the metering accuracy of the loader electronic scale.

Description

technical field [0001] The invention relates to a measuring instrument, in particular to an electronic weighing system for a loader. Background technique [0002] Loader electronic scales are generally measured by hydraulic transmission. This measurement method is to install a pressure sensor for measuring liquid pressure in the oil inlet pipeline of the boom cylinder on the loader bucket to measure the load on the bucket. The quality sensing signal is received by the secondary instrument and converted to display the contained mass. This measurement method can not be popularized due to low measurement accuracy and poor reliability due to oil temperature, pollution, wear of the gasket and dynamic factors of dynamic weighing during travel. The patent application number is 200410079234.6, which discloses a bucket position measurement switch group composed of a lifting force sensor group, a proximity switch, a computer automatic measurement control unit and an acceleration sens...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: according to the prior art, several proximity switches are used to dynamically detect the position of the bucket in the form of discontinuous points to correct the weighing and measuring error of the electronic scale of the loader, and the correction of the measuring error cannot be done in all directions Uninterrupted real-time tracking of each position of the bucket when it is loaded, the correction of the weighing measurement deviation is limited, and the weighing accuracy is not high. At the same time, the proximity switch in the prior art is installed on the working surface of the loader, which is easily damaged Provide a loader electronic scale C with simple structure and low cost, which can achieve high weighing accuracy under the dynamic environment of the loader bucket

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