How to detect the phenomenon of inaccurate weighing of electronic loadometer?

Traditional detection methods:

1. Partial load detection

In the international recommendation R76 "Non-Automatic weighing apparatus" and JJG555-96 "General Verification Regulations for Non-automatic weighing apparatus"

The loadometer partial load detection is based on "the number of bearing points to determine the amount of weight applied; And Jordan farmar to

Apply to the position above each support point, taking care not to form unnecessary stacking in the placement area if used singly

The weights can be put in the center; If multiple small weights are used, distribute them evenly throughout the area.

This method can achieve the purpose of adjusting the loadometer's off-loading. It is a guarantee bar for mechanical weights

The consistency of the bar - to - force ratio ensures the consistency of the output voltage signal of the weighing sensor for the electronic weigher.

2. Weighing detection

The traditional weighing test method is to start with no load, apply the test load gradually, and then step by step in the opposite order

Unload the test load to zero. If the platform is composed of three loaders, the recommended method is as follows:

(1) Method of weighing rolling load

When the conditions are suitable, rolling loads should be used to test the off-loading of the loadometer. As the current track scale deviation

The loading test method is the same. The method is: at different positions of the starting, middle and end of the load carrier, the load is not greater than

0.8 times the scale, equivalent to the commonly used centralized rolling measurement load. The rolling load is used to test the off-loading of the loadometer.

You can kill two birds with one stone. Firstly, it can make the output voltage signal size of the weighing sensor consistent; Second, it can simulate

The stiffness of the load carrier in actual use.

(2) Detect the weighing according to the centralized loading method

According to the traditional method of detection and weighing, all the 100t weights of * weigher were placed at 18m long, 3.4m wide, and the dead weight was

When the three-stage bearing platform at 15.84t is used, the average load q per unit length is 64.36kg/cm, and the deformation of the bearing platform is

0.26 cm. In this way, the electronic weighter composed of three stages of the carrier, the weight of the scale, are added to one of the

On the area of the section, the effect is close to that of the two axes acting on the central part of the load carrier at 32t, respectively. The question is, if you want to follow

If the weighing load is applied to the three stages respectively, the workload will increase twice.