Method and device for eliminating shutdown impact of vibration sieve

Abstract

The invention provides a method and a device for eliminating shutdown impact of a vibration sieve, belonging to vibration damping method and device. The vibration sieve is connected with a fixed bottom plate by a spring and is connected with a piston rod; a piston cylinder body is connected with the fixed bottom plate; a bypass electromagnetic valve is connected between a rod chamber oil hole and a rod-less chamber oil hole in the piston cylinder body; the rod chamber oil hole is connected with a damping electromagnetic valve that is connected with one end of a first absorber and a second absorber; the first absorber is connected in parallel with the second absorber; and the other ends of the first absorber and the second absorber are connected with the rod-less chamber oil hole. The method and the device have the advantages that the impact load generated by the vibration sieve is converted into hydraulic energy; the vibration energy is moved out of a vibration source; the vibration energy is absorbed by bidirectional self-tuning of the two absorbers, so that the impact load is instantaneously converted into the heat energy that is released; and the vibration impact force generated by shutdown is not directly acted on the motor and the vibration mechanism, thus reducing maintenance quantity and failure rate.

Description

technical field [0001] The invention relates to a vibration damping method and device, in particular to a method and device for eliminating the impact of a vibrating screen when it is shut down. Background technique [0002] The currently used vibrating screens, especially the vibrating screens with high-power vibrating sources, often have failures in the motor and vibration mechanism in the application. People usually think that this is the inherent shortcoming of the vibrating screen. Most of them adopt the method of increasing the amount of maintenance to delay the occurrence of failures. Important occasions are maintained on a daily basis. In fact, this is a misunderstanding of people's understanding, because the vibration energy needs a certain period of time to gradually decay during shutdown, and the vibration mechanism will stop working immediately, so that the vibration energy will generate an impact force on the vibration mechanism. Long-term impact, the fasteners...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method and device for eliminating the impact of the vibrating screen when the vibrating screen stops working, so as to solve the problem that when the vibrating screen stops working, the vibration energy is released to generate impact force that damages the vibrating mechanism, resulting in a high failure rate of equipment

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