The digital weighbridge manufactured by the company is roughly the same as the digital weighbridge manufactured by the company. However, in terms of details, the company's platform has many features and differences in mechanical and electrical construction. The analysis is as follows:

1. Load cell

The company's load cell and cable are integrated. The cable has a thick wire diameter and the same length (not required to be cut during installation; the load cell elastic body is fitted with a pair of ball bowls and two upper and lower ends). , that is, the axis of the load cell is 3-stage, so the upper and lower ends do not move relative to the scale body and the foundation; the rotation of the load cell about its own axis depends on the two round steel and sensor housings that are threaded on the bottom plate. The one round fit of the interference fit is limited.

Advantages: Each load cell has the same communication impedance and low impedance, which is beneficial to improve the stability of the scale; the ball bowl is inside the load cell, no wind, rain, dust erosion problem, the ball bowl has less friction resistance, the weighing platform The swaying is flexible, which is conducive to the resetting of the labor point, which is beneficial to reduce the repeatability error of the scale and improve the stability of the scale; the upper and lower ends of the load cell have no relative movement with the scale body and the foundation, that is, there is no wear and can be avoided. Maintenance of the foundation and replacement of the load cell connector; the anti-weighing sensor rotates around the axis of the three round steel without damage, no maintenance or replacement.

Disadvantage: Once the cable is damaged, the entire weighing sensor may be scrapped.

2. Weighing platform

The company's weighing platform is modular in design and bolted to each other. When assembling the weighing platform, the weighing platform is positioned by a gyro-shaped steel device. The adjusting platform of the scale body limiting bolt, the cavity for placing the cable and the junction box, and the mechanism for hoisting the weighing platform are designed on the side of the weighing platform. Convenient to use the position mechanism of the jack.

Advantages: When the weighing platform and the weighing platform are hoisted and assembled, the positioning gyro head is inserted downwards into the first fixed weighing platform. Since the gyro's foot is only one point, the second weighing platform and the gyro cooperate with the positioning aperture larger than the gyro. The diameter of the head is a little, so the scale platform and the weighing platform are not properly aligned when assembled. It is easy to enter the correct position by the guiding action of the gyro cone surface; since there is a mechanism for lifting the weighing platform, the spreader can be used. There are many types, so the lifting of the weighing platform is quick and convenient. With the position mechanism of the jack, the jacks of various specifications can be basically used, which is quite flexible and convenient. 2 pieces of the fixed scale body clearance adjusting cavity cover are removed. Fixing the bolts can adjust the limit gap of the scale body, which is quite convenient and fast.

3. Junction box

The company's junction box uses plug-in shrapnel terminals.

Advantages: It is convenient and quick to connect the wires without screwing, and the vibration will not loosen the contact of the terminal of the terminal, and the reliability is high.

4. Instrument

The company's instrumentation is powerful, and the sockets for plug-in and peripheral devices connected to the load cell are air outlets.

Advantages: When checking the scale, if the error is too large or the error is large, you need to use the range adjustment function to calibrate. Press the OK button to complete the calibration immediately. The calibration accuracy is high. Because the aviation socket is factory-customized, the reliability is reliable. High, not easy to go wrong, easy and fast connection;

Disadvantages: The software of the instrument is complex and difficult to understand, and human-machine communication is difficult.

5 Conclusion

The company's floor scale is superior in terms of ease of installation, repair and maintenance, and many details; from the quality of the installation, the company's installation engineers' technical level, rigorous work attitude and serious spirit are far higher or better than Other companies, so the installation quality of the company's weighbridge is much higher than that of other companies. Since the details of the company's various aspects have been done better, the platform has been used for two years, and the measurement stability is very good. We use 90, each 1t M1 weight for verification every half year, linear error, repeatability error, partial deviation. The load error is less than 20kg. According to such metering performance, the calibration index value can be calculated according to 20kg. According to the requirements of the national verification regulations, the scale with a maximum weighing of 120t can be calculated according to 50kg, so the current situation Look, the verification number has reached 6000, which is much higher than the requirements of the national verification regulations for the Class III scale, which further proves the details of the success or failure.