The explosion-proof Electronic scale for foundation pits adopts a resistance strain gauge weighing sensor, which consists of four weighing elastic bodies on the base as the sensor body. Resistance strain gauges are attached to the elastic body along the axial direction and are perpendicular to each other. When the sensor is under pressure, the elastic body undergoes a slight deformation, and the strain gauges attached to it also undergo a slight deformation. The deformation of the strain gauges causes a change in their resistance. In order to measure the change in resistance, the weighing sensor is connected to a bridge circuit. When there is no external force acting on the sensor, the bridge is balanced; When the sensor is subjected to external force, the voltage at the CD terminal is not equal. The voltage change is measured by an amplification circuit and converted into the corresponding mass value for display. The explosion-proof electronic scale is connected to a computer for centralized control, and all information is monitored by the upper management computer through a communication network to achieve optimal control. The entire weighing device has the advantages of decentralized monitoring of weighing instruments and centralized monitoring of computers, which not only achieves centralized management, operation, and display, but also achieves decentralized functionality, load, and hazard. Explosion proof electronic scales are based on new generation communication technology, management concepts, and industry characteristics of mineral product production and sales. Based on the idea of precise management, they achieve the goal of decentralized weighing in weighing rooms across regions, centralized management by weighing personnel, and prevention of cheating, solving the problem of weighing management.

The weighing scale adopts a base, and the top of the base is fixedly connected to the main body of the weighing platform. The bottom of the base is provided with a through port, and both sides of the top of the base cavity are fixedly connected to the Shendong push rod. The bottom of the electric push rod is fixedly connected to the moving plate, and the bottom of the moving plate is fixedly connected to the cross roller bearing seat. The bottom of the cross roller bearing seat is sleeved with a support column, and the bottom of the support column is connected to the walking wheel through the pin shaft. The two sides of the base cavity are vertically fixedly connected to the shell. The top of the shell cavity is fixedly connected to a spring, and the bottom of the spring is fixedly connected to the support plate. The inner side of the support plate is fixedly connected to a connecting block, and the inner side of the connecting block penetrates to the inner side of the shell and is fixedly connected to The sliding connection has a slider, and the inner side of the slider is fixedly connected to the outer side of the support plate. The bottom of the inner cavity of the shell is fixedly connected with a damping block, which is made of rubber material. The left side of the base is fixedly connected to a support beam, and the top of the support beam is fixedly connected to a weighing display. The input end of the weighing display is electrically connected to the output end of the weighing scale body through a wire. There are support blocks fixedly connected around the bottom of the weighing scale base, and shock-absorbing pads fixedly connected to the bottom of the support blocks. Both sides of the bottom of the mobile board are fixedly connected with springs, and the bottom of the spring is fixedly connected to the bottom of the inner cavity of the base.

Technical Parameters:

Table size: can be customized according to requirements

Accuracy level: OLML III, division value: ≥ 2000

Working temperature (℃): (Instrument -10 to+40) (Scale body -30 to+65)

Power supply: AC220V (-15% to+10%), frequency: 50 ± 1