Weighing sensor

Abstract

The invention discloses a weighing sensor, which is characterized in that the weighing sensor comprises a housing and installing holes disposed at two sides of the housing; the installing holes are respectively connected to a body of an inverted barrel scale and an oil drum of an inverted barrel scale; the upper part of the housing is symmetrically provided with two U-shaped grooves, and a groove is disposed between the two U-shaped grooves; the lower part of the housing is symmetrically provided with two inverted-U-shaped holes, and a boss is disposed between the inverted-U-shaped holes; the groove and the boss are respectively provided with a weight induction chip; the induction chip is connected to a signal line, and the signal line extends outside of the sensor housing. The weighing sensor is advantageous in that the structure is simple and installation is convenient; with the arrangement of the installing holes at two sides, the back-and-forth connection effect of the sensor and the oil drum can be realized, and the action force of the oil drum on the sensor can be reduced; only one sensor is required for the inverted barrel scale, and the installation steps are simplified; the problem of data transmission with double sensors can be prevented, and measuring accuracy can be improved.

Description

technical field [0001] The invention relates to the field of weighing instruments, in particular to a weighing sensor. Background technique [0002] Inverted barrel scale, also known as oil barrel truck scale and oil barrel scale, is composed of an inverted barrel cart, a load cell and a weighing display instrument. The dump truck adopts channel steel door frame and wear-resistant nylon casters, and its surface structure is treated with anti-rust baking paint, which can slightly prevent the corrosion of chemical raw materials and moisture. [0003] After the oil drum is clamped and lifted by the inverted drum scale, it can flip or stay more than 180 degrees in the air, and can load and unload the oil drum on the car and stack it, so it is widely used in the handling and weighing of oil drums in chemical plants The process not only reduces the manual handling of oil drums, but also greatly improves the production efficiency and weighing efficiency of the factory. [0004] ...

AI Technical Summary

Problems solved by technology

[0004] When the existing load cell is in use, the load cell is connected up and down with the oil barrel, and its structural principle diagram is as follows figure 1 As shown, the lower left of the sensor a is connected to the car body b of the drum scale, and the upper right of the sensor a is connected to the oil drum holding device c. When holding the oil drum, the sensor a is affected by the gravity of the right oil drum, and the sensor a The annular hole d in the center is deformed. Due to the upper and lower connections, the force on the sensor a is asymmetrical, and the annular hole d undergoes a large deformation. The resistance strain gauge located above the annular hole d also undergoes a large deformation. range, resulting in inaccurate measurements and even damage to strain gauges

In order to withstand the gravity of the oil drum, the traditional inverted drum scale uses dual sensors instead of a single sensor. Due to signal interference, the dual sensors cause data transmission problems and affect the accuracy of weighing.

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