Vibrating screen with hydraulic cylinder

Abstract

The invention discloses a vibrating screen with a hydraulic cylinder, which belongs to screening equipment and can be widely used for screening and classifying ores, coals and other non-metal materials. The vibrating screen comprises a screen body, a screen body excitation beam, a pump station system, a base frame, the hydraulic cylinder, a fixed component, a bracket and a damping spring, wherein the screen body is supported on the bracket by the damping spring. The vibrating screen is characterized in that: one end of a hydraulic oil pipe is connected with the pump station system, while the other end is connected with the hydraulic cylinder; and the hydraulic cylinder is fixed on the base frame and is connected with the screen body excitation beam through the fixed component. The hydraulic cylinder can drive a plurality of types of vibration equipment through excitation and can realize stepless speed adjustment to the maximum of 1,000 times per minute, vibration parameters of the hydraulic cylinder are adjustable, are easy to control, and can ensure that a screening machine runs stably without resonances; besides, one pump station system can drive a plurality of hydraulic cylinders to perform excitation, and can increase the exciting force and meet the needs of a heavy-type efficient vibrating screen.

Description

technical field [0001] The invention relates to a hydraulic oil cylinder vibrating screen, which belongs to screening equipment and can be widely used in screening and grading of ore, coal and other non-metallic materials. Background technique [0002] At present, most of the known vibrating screens are excited by mechanical eccentric inertial vibration. The main advantages are simple structure, low price and easy manufacture, but there are the following problems: (1) The vibration parameters, namely frequency, amplitude and processing capacity are not enough. (2) Long start-up and shutdown time, serious resonance phenomenon, resulting in damage to the screen body and seriously affecting the life of the machine body; (3) Limited by the specification parameters of ordinary motors, it is difficult to achieve the requirements of some materials. Low frequency high amplitude vibration. Contents of the invention [0003] The object of the present invention is to overcome the sh...

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Problems solved by technology

[0002] At present, most of the known vibrating screens are excited by mechanical eccentric inertial vibration. The main advantages are simple structure, low price and easy manufacture, but there are the following problems: (1) The vibration parameters, namely frequency, amplitude and processing capacity are not enough. (2) Long start-up and shutdown time, serious resonance phenomenon, resulting in damage to the screen body and seriously affecting the life of the machine body; (3) Limited by the specification parameters of ordinary motors, it is difficult to achieve the requirements of some materials. Low frequency high amplitude vibration

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