Advantages of the Fully Suspended Electronic Belt Scale

Electronic belt scales are devices designed for continuous weighing and measurement of industrial bulk materials. They have become an indispensable scientific measurement method in the automated and serialized loading and unloading processes of bulk cargo. With the development of society and science and technology, the accuracy requirements for material measurement are becoming increasingly stringent. To enhance the accuracy of electronic belt scales, improvements must be made to the scale frame, sensors, and instrumentation.

Sensor technology is advancing rapidly, with domestic sensors now offering high sensitivity and accuracy, reaching levels of 0.05% to 0.02%. As technology progresses, smart display instruments have evolved significantly, featuring simpler internal hardware, advanced software, rich and comprehensive functionalities, and enhanced stability and reliability, with accuracy levels reaching 0.03% to 0.02%. However, the scale frames of electronic belt scales have relatively lagged behind. In comparison, the accuracy of scale frames is lower than that of instruments. Therefore, the scale frame is a crucial factor in improving the accuracy and performance of electronic belt scales, as well as in researching their calibration methods. Based on a summary of market measurement needs and our extensive experience, Guonuo Technology has designed and developed the fully suspended high-precision electronic belt scale.

There are various types of electronic belt scales, classified by the number of rollers (single-roller or multi-roller) or by the scale frame type (suspended or lever). Currently, most manufacturers still produce lever-type scales, predominantly double-lever multi-roller frames. Although these frames offer relatively high structural accuracy, they involve multiple mechanical force transmission links, leading to measurement errors. Lever-type frames are not entirely obsolete and can still be used in applications where high accuracy is not required. However, in scenarios requiring high accuracy, such as trade settlements, lever-type frames fall short.

The fully suspended electronic belt scale employs a fully suspended multi-roller frame, which differs from mechanical lever transmission. It utilizes a special connection method for high-precision sensors, cleverly suspending the weighing frame within the belt conveyor space. This eliminates the lever force transmission links, allowing each unit to be independent yet freely combinable. This design completely eliminates the measurement errors and faults associated with lever-type force transmission, ensuring normal operation even in environments with vibration or uneven material distribution. It significantly enhances the accuracy and stability of the electronic belt scale.

The fully suspended multi-roller frame directly transmits force through four weighing sensors, eliminating mechanical transmission links. These four sensors offer high sensitivity and consistent output. Compared to lever-type frames, the fully suspended design provides more efficient monitoring signals. Under the same conditions of material flow, roller spacing, and belt speed, the total effective force on the weighing sensors is greater in the fully suspended frame, improving its accuracy.

The fully suspended frame consists of weighing rollers, supports, and a scale frame. The scale frame is suspended within the belt conveyor frame through four sensors. To prevent movement, adjustable limiters are used to connect the scale frame to the belt conveyor frame. This design eliminates fulcrums and torque, has no moving or wearing parts, avoids rubber aging issues, and ensures long-term reliable and stable operation.

In terms of installation and debugging, the fully suspended frame structure is simpler and more convenient. The frame adopts rectangular formed tubing, providing sufficient rigidity while reducing weight. Installation time for the suspended frame is significantly less than that for lever-type frames. Additionally, the suspended frame has a smaller horizontal surface area, accumulating less dust and eliminating the need for frequent cleaning, thereby reducing maintenance requirements.

Extensive practical applications across multiple industries, fields, and settings have demonstrated that the fully suspended high-precision electronic belt scale offers high measurement accuracy and stable performance, making it suitable for applications requiring high flow rates and high accuracy.