A two-way cartridge type vibration control valve

A vibration control and cartridge valve technology, which is applied to fluid pressure actuation devices, servo motor components, mechanical equipment, etc., can solve the problems of high production cost, many hydraulic components, and complex structure of two-way cartridge vibration control valves. , to achieve the effect of low production cost, increased service life and shortened vibration stop time
CN103511375BActive Publication Date: 2015-09-16PERMCOTIANJINHYDRAULIC INC
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
PERMCOTIANJINHYDRAULIC INC
Publication Date
2015-09-16

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Abstract

The invention relates to a two-way plug-in mounting type vibration control valve which comprises a valve body and an electric hydraulic control loop, wherein the valve body is inserted into a valve body inserting cavity, and the electric hydraulic control loop is composed of a two-way plug-in mounting type valve, a control cover plate, a two-position two-way hydraulic control direction valve, an overflow valve and the like and controls the operation of a hydraulic motor. The electric hydraulic control loop comprises a direction dividing loop controlling the hydraulic motor to rotate forward or reversely, a dividing loop controlling the hydraulic motor to stop rotating forward or reversely and a dividing loop providing overload protection for forward rotation or reverse rotation of the hydraulic motor. According to the two-way plug-in mounting type vibration control valve, the hydraulic shock can be relieved when a road roller starts vibrating, carries out amplitude of variation and stops vibrating, the peak pressure of a hydraulic system is reduced, and the working reliability and durability of a hydraulic element are improved. Due to the fact that the road roller automatically stops vibrating through hydraulic control, the vibrating stopping time is shortened, the probability that the whole road roller is resonant when the road roller stops vibrating is avoided, and the working quality of the road roller and the comfort of a driver are improved. The whole hydraulic system is simple in structure and small in number of elements, the control performance is improved, and cost is reduced.
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Description

technical field

[0001] The invention relates to a two-way plug-in vibration control valve, in particular to a two-way plug-in vibration control valve for controlling the operation of a hydraulic motor on a vibratory road roller. Background technique

[0002] In order to reduce the cost, the vibrating device of the domestic vibratory roller adopts the open hydraulic transmission and control system with constant pump (mostly gear pump) as the power source, which is relatively common. During the vibration start and stop process of the vibratory roller, the vibration frequency and vibration acceleration of the vibratory wheel have a change process from small to large or from large to small. During this short transition process, the vibration parameters of the vibratory wheel It is different from its vibration characteristics when it works in a steady state. In addition, the vibrating hydraulic motor starts with load when it works. It is easy to form a high-pressure impact on the...

Claims

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