Two-way plug-in mounting type vibration control valve
A vibration control and cartridge valve technology, which is applied in fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of many hydraulic components, complex structure of two-way cartridge vibration control valves, and high production costs. Achieve the effect of low production cost, shorten the vibration stop time and improve the service life
Active Publication Date: 2014-01-15
PERMCOTIANJINHYDRAULIC INC
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Problems solved by technology
[0004] For this reason, the technical problem to be solved by the present invention is that the structure of the two-way plug-in vibration control valve in the prior art is complicated, the hydraulic components need to be used are many, and the production cost is high. Lower cost two-way cartridge type vibration control valve
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[0032] Such as figure 1 As shown, a two-way cartridge type vibration control valve in this embodiment includes
[0033] The valve body is formed with a plug-in cavity, an oil inlet port (P) connected to the oil outlet of the hydraulic pump, an oil return port T connected to the oil return tank of the hydraulic system, and the oil return port T connected to the oil return tank at both ends of the hydraulic motor. The first working port A connected to the first oil port and the second oil port, and the second working port B;
[0034] The main circuit, the main circuit is inserted in the insertion chamber of the valve body, including a direction control circuit composed of five two-way cartridge valves and a three-position four-way electromagnetic reversing valve, wherein
[0035] The first two-way cartridge valve 1 is arranged between the oil inlet port P and the first working port A to control the liquid supply from the oil inlet port P to the first working port A, and the thi...
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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.
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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IPC IPC(8): F15B13/02
Inventor 郭熛王育青邰小琴戴明翰
Owner PERMCOTIANJINHYDRAULIC INC
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