The loading method of the machine is based on the principle of variable arm ratio double lever. Its basic feature is that the loading system is composed of two sets of lever systems: the main lever uses the principle of variable arm ratio to apply the load, and the auxiliary lever realizes the initial balance of the lever system. The principle of variable arm ratio loading is to use a single weight to move along the beam of the main lever to achieve the purpose of applying different loads to the test piece by changing the lever ratio, that is, to apply different sizes of loads by changing and controlling the position of the weight on the main lever. The loading device will automatically return the parallel bar system to the initial balance position after each level of load is applied. This method is easy to operate and no manual balancing is required for the specimen placement; By transforming the force control of the system into the precise control of displacement, a wider force range and a smaller force error can be obtained; The speed at which the load is applied can be changed by controlling the speed at which the weight is displaced, so that the loading efficiency can be very high.
Main technical indicators:
1. Loading force range: 10kN ~ 1000KN
2. Total weight weight: 20KN
3. Z large magnification ratio: 50
4. Weight displacement control resolution: 1 µ M
5. Positioning accuracy: 10 µ M
6. Relative error of force value: can be controlled within ± 0.01%
7. Machine Z high power: 2KW
8. The weight is divided into two parts. The small weight has a gravity of 5kn and can apply a force of 10kN ~ 250kN
9. The total gravity of large and small weights combined is 20KN, and the force value of 250kN ~ 1000KN can be applied
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