Full hydraulic constant-power closed type driving system of tooth roller type breaker

Abstract

The invention belongs to the technical field of tooth roller type breakers, and particularly relates to a full hydraulic constant-power closed type driving system of a tooth roller type breaker. The system comprises a control module and a hydraulic system, the hydraulic system comprises two sets of main oil paths of the same structure, two sets of control oil paths and one set of oil supplementingoil path, each main oil path comprises a bidirectional variable plunger pump, oil ports A and B of the bidirectional variable plunger pumps are connected with oil ports C and D of hydraulic motors, pressure sensors are mounted on oil paths A and B of the main oil paths, the hydraulic system transmits signals to the control module through the pressure sensors according to the pressure signals generated by running loads, the control module controls a servo variable assembly to act on a servo variable oil cylinder to achieve displacement changes of the bidirectional variable plunger pumps, the hydraulic system works according to a constant power control program set by the control module, the system operates under the constant power, a tooth roller can automatically change the breaking speedand the breaking strength according to the breaking load, and the aims of energy saving and production efficiency improving are achieved.

Description

technical field [0001] The invention relates to a fully hydraulic constant power closed drive system of a toothed-roll crusher, belonging to the technical field of the toothed-roll crusher. Background technique [0002] The toothed roller crusher is mainly used in the crushing of coal and calcium carbonate in mines. The toothed roller crusher is equipped with different crushing teeth, which can be used for crushing various materials in industrial waste, domestic waste, construction waste and ceramic industry. [0003] The toothed roller crusher has double toothed roller and multi toothed roller crushing structure. For the double toothed roller crusher, the two toothed rollers rotate relative to each other, and the crushing teeth installed on the double shaft rotate alternately to crush the materials entering the double toothed roller crusher. The main engine of the double-toothed roller crusher is mainly powered by a motor, which is connected to a torque-limiting hydraulic...

AI Technical Summary

Problems solved by technology

[0006] 2. The motor cannot convert the crushing speed according to the load

The AC motor runs at a constant speed and cannot automatically adjust the speed according to the size of the crushing force

[0007] 3. The crushing force of the toothed roller crusher driven by the motor is a constant value, and the crushing force cannot be automatically selected according to the difficulty of crushing the material, resulting in low production efficiency and high energy consumption

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