Electronic weighing scale of loader

A technology for loaders and electronic scales, applied to special scales, measuring devices, mechanically driven excavators/dredgers, etc., can solve the problems of increasing the cost of electronic scales, and the acceleration sensor is easily damaged, so as to achieve simple structure and increase weight The effect of measurement accuracy and cost reduction

Inactive Publication Date: 2010-01-20
SHANXI XINYUAN AUTOMATIC INSTR
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Problems solved by technology

[0003] The technical problem solved by the present invention is: when the acceleration sensor is installed on the loader bucket in order to correct the weight measurement deviation caused by the acceleration when the bucket moves in view of the prior art, the acceleration sensor is easily damaged and the electronic scale is increased. To solve the problem of cost, provide a loader electronic scale with simple structure and low cost, which can achieve high weighing accuracy in the dynamic environment of the loader bucket

Method used

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  • Electronic weighing scale of loader

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Embodiment Construction

[0010] The loader electronic scale includes a loader arm 1, a hydraulic push rod 2, a pressure sensor 3, and a secondary instrument 4 installed in the loader cab, and a load cell 5 is arranged on the loader arm 1, The load cell 5 is electrically connected to the secondary instrument 4 , the fixed end of the load cell 5 is fixedly connected to the arm body of the loader boom 1 , and the load end of the load cell 5 is provided with a weight 6 . When the loader is working, if the vehicle body is tilted, the boom 1 of the loader is also tilted at the same angle, and the load cell 5 and the bucket installed on the boom 1 of the loader are also tilted at the same angle at the same time. The vertical downward component force of the weight of the counterweight 6 and the vertical downward component force of the material weight in the bucket change in the same ratio. According to this ratio, the secondary instrument 4 is composed of the load cell 5 and the pressure sensor. 3. Compensati...

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Abstract

The present invention discloses a loader electronic scale A which belongs to the weighting and metering device and settles the problems of easy being damaged of the acceleration transducer and cost increasing of the electronic scale when the loader bucket is arranged with an acceleration transducer in the existing technique for modifying the measurement deviation caused by the acceleration in the movement of the bucket, the loader electronic scale comprises a loader large arm (1), a hydraulic push rod (2), a pressure sensor (3) and a secondary instrument (4) arranged in the steering room of the loader; the loader large arm (1) is arranged with a weighting transducer (5) which is electrically connected with the secondary instrument (4), the fixed end of the weighting transducer (5) is permanently connected on the arm body of the loader large arm (1), and the weighting end of the weighting transducer (5) is arranged with a heavy block (6). 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 weighing measuring instrument, in particular to an electronic weighing system of 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 accelerat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01G19/08G01G19/14E02F3/36
Inventor 梁跃武
Owner SHANXI XINYUAN AUTOMATIC INSTR
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