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Calibration device of large weighing apparatus

A weighing instrument and large-scale technology, which is applied in the field of verification structure of large weighing instruments, can solve the problems of time-consuming and labor-intensive verification, insufficient accuracy, and huge verification workload, and achieves a simple structure, saves costs, and improves work efficiency and safety. Effect

Active Publication Date: 2012-07-04
FUJIAN METROLOGY INST
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Problems solved by technology

[0027] The beneficial effect of the verification structure of a large-scale weighing apparatus of the present invention is that: adopting the verification structure to verify the large-scale weighing apparatus can solve the problem of using standard weights or standard weights and substitutes or other non-weight type weighing apparatus verification devices in the prior

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  • Calibration device of large weighing apparatus
  • Calibration device of large weighing apparatus
  • Calibration device of large weighing apparatus

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Embodiment Construction

[0036] Please refer to figure 2 and Figure 4 , a verification structure 100 of a large-scale weighing apparatus according to the present invention, comprising at least verification units 101 consistent with the number of load cells 201 of the weighing apparatus 200 under test and a foundation 102 for supporting each verification unit 101, on which a The foundation pit 1021 for accommodating the weighing apparatus 200 under test, and the foundation 102 on both sides of the foundation pit 1021 are respectively provided with foundation embedded boards 1022; each verification unit 101 includes a foundation embedded board 1022 Base 1011, a pair of booster cylinders 1013 centered on a pressure bearing plate 1012, a cantilever beam 1014 including a fixed end 10141 and a free end 10142, a force sensor 1015, and a pair centered on the force sensor 1015 The ball head pressure block 1016, the pressure bearing plate 1012 is placed on the weighing platform 202 of the weighing instrument...

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Abstract

The invention provides a calibration device of a large weighing apparatus. The calibration device comprises calibration units and a base, wherein the number of the calibration unit is at least accordant with that of weighing sensors of the calibrated weighing apparatus; the base is used for supporting each calibration unit; a foundation pit used for accommodating the calibrated weighing apparatus is arranged on the base; base pre-burying boards are respectively arranged on the bases which are arranged on the two sides of the foundation pit; each calibration unit comprises a pedestal fixedly arranged on the base pre-burying boards, a force applying oil cylinder, a cantilever beam with a fixed end and a free end, a force sensor and a ball head pressing block; a bearing board is arranged on a weighing platform of the calibrated weighing apparatus; the force sensor is arranged on a piston of the force applying oil cylinder; the fixed end of the cantilever beam is fixedly arranged on the pedestal; and the free end of the cantilever beam is positioned above a ball head bearing pad and is contacted with the ball head bearing pad. The calibration device has the advantages that the working efficiency and the security of the large weighing apparatus are highly improved, the cost is saved and the structure is simple.

Description

【Technical field】 [0001] The invention relates to a device structure in the technical field of metrology verification, in particular to a verification structure of a large weighing apparatus. 【Background technique】 [0002] Fixed electronic scales are currently the most mature weighing and measuring instruments in the world. They are measuring instruments with a large quantity and a wide range. The process control of trade settlement and weighing process in the production process is an ideal measurement equipment for enterprises to improve the modernization level of weighing measurement. The working principle of the fixed electronic scale is to place the object to be weighed or the truck on the scale platform. Under the action of gravity, the scale platform transmits the gravity to the swing support (steel ball, pressure head, etc.), so that the elastic body of the load cell produces Deformation, the strain gauge bridge attached to the elastic body loses balance, outputs an...

Claims

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Application Information

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IPC IPC(8): G01G23/01
Inventor 姚进辉许航林建辉王秀荣郭贵勇赖征创
Owner FUJIAN METROLOGY INST
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