Rotary reversing valve, block forming machine rotary hydraulic vibration platform and method

Abstract

The present disclosure provides a rotary reversing valve, a rotary hydraulic vibration platform of a block forming machine and a method thereof, based on a matched valve body and a valve core, the valve core can rotate in the valve body, and the valve core located inside the valve body The upper and lower ends of the valve core are respectively provided with bearings, the valve body is provided with a hollow valve chamber, the inner edge of the valve chamber is provided with bearing grooves at positions corresponding to the bearings, and the inner edge of the valve chamber is provided with different valves at different positions. Oil port, the valve core is provided with several oil passages, by controlling the rotation position of the valve core relative to the valve body, the relationship between different oil passages and oil ports can be changed, the oil flow direction can be changed, and the transmission of oil in different oil ports can be realized. The direction can be reversed multiple times in one rotation cycle, which greatly increases the vibration frequency.

Description

technical field [0001] The disclosure relates to a rotary reversing valve, a rotary hydraulic vibration platform of a block forming machine and a method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] Vibration is a common physical phenomenon. The reciprocating motion of an object near the equilibrium position is vibration. Vibration is widely used in industry. Using vibration can easily complete many processes and improve production efficiency. According to statistics, there are many types of vibrating machinery. Less than a few hundred types, typical such as high-frequency hydraulic vibrators, vibration crushers, hydraulic impact drills, vibration testing machines, etc. There are good applications, and vibration is also one of the applications in the process of block forming. Vibrators used in industry can be divided into mechanical,...

AI Technical Summary

Problems solved by technology

Vibrators used in industry can be divided into mechanical, electric and hydraulic; due to their own limitations, mechanical and electric vibrators are difficult to meet today's increasingly high requirements for excitation frequency and output force, while traditional hydraulic vibrators The vibrator is mostly controlled by a servo valve, and its performance will also be limited by the frequency response characteristics of the servo valve itself.

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