How should these spare parts for electronic belt scales be selected?

Electronic belt scale is used for belt conveyors to transport bulk bulk materials in the process of weighing and measuring, in the port, mining, building materials, chemical, environmental protection, grain and other industries have been widely used. Electronic belt scales are generally composed of scale frames, instruments, load cells, and speed sensors, and the performance of these spare parts determines the measurement accuracy that the belt scale itself can achieve. In order to improve the accuracy and stability of the electronic belt scale, it is necessary to consider the performance of these spare parts, and how to choose?

1. Scale frame

The scale frame of the electronic belt scale should try to choose an effective weighing section long, stable, force transfer into a linear, strong bearing scale frame, when installing the scale frame, try to level it, and should regularly clean the ash and material on it when using it, so as not to affect the change of skin weight.

2. Idler roller

The roller of the electronic belt scale should be selected from the roller with flexible rotation and small beating, and the group of rollers should be as uniform as possible, and the surface of the roller should be smooth to reduce friction.

3. Load cell

The load cell is mainly used to weigh the load signal of the material on the weighing electronic belt scale, which is directly related to the weighing result. When selecting a load cell, a sensor with good linearity should be selected, and pre-pressure should be added to make the sensor work in the linear area. The number of sensors is selected according to the support point of the scale body, and the sensor range is determined according to the maximum weight of the electronic belt scale, the number of sensors, the self-weight of the scale body, the maximum bias load that may be generated, the material flow and other comprehensive factors. The load cell design can be designed with an optional seal to prevent dust from entering the sensor interior and affecting the operation. Regarding the load cell signal, the digital signal is more anti-interference and the weighing is more accurate than the analog signal sensor.

4. Speed sensor

The velocimetry sensor should try to select a sensor without edge effect, DC pulse, prevent interference to ensure accuracy, and reduce external environmental interference. The tachometer structure can be selected from a two-wheel structure, which is more accurate than the single-wheel structure speed measurement.

5. Signal line

The signal lines of the load cell and the speed sensor of the electronic belt scale should be shielded cable to reduce interference and improve the accuracy of the load signal and speed signal.

6. Secondary instrument

Electronic belt scale instrument to choose simple operation, complete display data, with communication functions, powerful products, such as one-click zero, large storage capacity, queryable historical data, etc., functional compensation can help improve the measurement accuracy, with communication capabilities can achieve data sharing, to provide support for management.