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Two-way cartridge type vibration control valve

A technology of vibration control and cartridge valve, which is applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve the problems of component structure and hydraulic system complexity, and achieve shortened vibration stop time, simple hydraulic system, and improved The effect of oil permeability

Active Publication Date: 2014-12-17
PERMCOTIANJINHYDRAULIC INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that the two-way plug-in vibration control valve in the prior art has many components, and the structure of the components and the hydraulic system are complicated, so as to provide a valve with fewer components and a simpler system. Two-way cartridge vibration control valve

Method used

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  • Two-way cartridge type vibration control valve
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  • Two-way cartridge type vibration control valve

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Embodiment Construction

[0031] The following embodiments will be used to further illustrate the present invention with reference to the accompanying drawings.

[0032] Such as Figure 1-3 As shown, a two-way cartridge type vibration control valve of this embodiment includes:

[0033] The valve body is formed with a cartridge cavity, an oil inlet port P communicating with the oil outlet of the hydraulic pump, an oil return port T communicating with the oil tank of the hydraulic system, and the first oil at both ends of the hydraulic motor. The first working interface A and the second working interface B connected with the second oil port;

[0034] The main circuit, which is inserted in the cartridge cavity of the valve body, includes a pilot directional control circuit composed of four 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 interface A, and contr...

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Abstract

The invention discloses a two-way cartridge type vibration control valve which comprises a valve body, a direction control branch loop, a vibration stop branch loop and a safe branch loop. The direction control branch loop is inserted in the valve body and formed by four two-way cartridge valves and the like. The hydraulic impact of a road roller in the vibration starting process is reduced, the peak pressure of a hydraulic system is lowered, the work reliability and durability of a hydraulic element are improved, the vibration stop time is shortened, and the operation quality of the road roller and the comfort feeling of a driver are improved. Compared with the prior art, a two-way cartridge valve and a control cover plate component of the two-way cartridge valve are omitted, the size is reduced, and the hydraulic system is simpler, more convenient to maintain and lower in production cost. Meanwhile, in the two-way cartridge type vibration control valve, an adjusting flow valve is arranged between the branch oil path position, communicated with the first two-way cartridge valve and the fourth two-way cartridge valve, of an oil inlet connector and an oil return connector, and the vibration frequency of the road roller can be adjusted when needed.

Description

Technical field [0001] The invention relates to a two-way cartridge type vibration control valve, in particular to a two-way cartridge type vibration control valve on a vibratory roller that controls the operation of a hydraulic motor. Background technique [0002] At present, the application of open hydraulic transmission and control system with fixed pump (mostly gear pump) as the power source for the vibration device of domestic single-drum vibratory roller is relatively common. When the vibratory roller starts to vibrate, its vibrating hydraulic motor is started with load, which causes a high-pressure impact on the hydraulic system during the vibrating stage of the roller. This instantaneous high pressure will affect the pumps, valves, motors and pipelines in the hydraulic system. Causes undesirable noises, causes damage to hydraulic components and loose pipe connections, resulting in leakage and environmental pollution. According to statistical analysis, more than 60% of the...

Claims

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Application Information

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IPC IPC(8): F15B13/02
Inventor 郭熛邰小琴冯鹏王育春
Owner PERMCOTIANJINHYDRAULIC INC
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