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Valve core of vane hydraulic motor controller

A hydraulic motor and controller technology, applied in the hydraulic field, can solve the problems of hydraulic reversing impact, large hydraulic clamping force, unreasonable matching clearance between valve core and valve body, and low control accuracy, so as to achieve balanced radial Effects of hydraulic pressure, prevention of reversing hydraulic clamping, and control of fluid noise

Inactive Publication Date: 2012-07-04
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the hydraulic reversing impact of the spool of the existing vane hydraulic motor controller, the large hydraulic clamping force, and the unreasonable cooperation gap between the spool and the valve body, resulting in large movement resistance and precise control of the spool. In view of the defects and deficiencies such as low precision and large leakage, a vane hydraulic motor controller spool is provided, and a plurality of triangular grooves are arranged radially on the outer surface of the spool, and the structure and quantity of the triangular grooves are optimized. Designed to minimize flow pulsation and control fluid noise

Method used

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  • Valve core of vane hydraulic motor controller
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  • Valve core of vane hydraulic motor controller

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] see figure 1 , the vane hydraulic motor controller spool of the present invention, the outer surface of the spool is provided with a triangular groove 1 along the radial direction, and the slope angle of the triangular groove 1 is 45 to 75 o , the number is 12 to 16. The triangular groove 1 is arranged on the controller spool, which can effectively reduce flow pulsation and control fluid noise. As the number of triangular grooves 1 increases, its functions of reducing flow pulsation and controlling fluid noise gradually increase, but when the number of triangular grooves 1 increases to a certain amount, the enhancement of its effect is very limited, and at the same time, the processing of the valve core is difficult And the structural cost is significantly increased, therefore, it is very important to set a reasonable number ...

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Abstract

The invention discloses a valve core of a vane hydraulic motor controller. Triangular grooves (1) are formed along the radial direction on the outer surface of the valve core, the slope angles of the triangular grooves (1) are 45 to 75 degrees, and 12 to 16 triangular grooves (1) are formed. According to the valve core of the vane hydraulic motor controller, by rationally designing the dimensions and the number of the triangular grooves, flow pulsation can be reduced maximally, fluid noise can be controlled maximally, and the processing difficulty and the structure cost of the valve core can be controlled.

Description

technical field [0001] The invention relates to a valve core of a blade hydraulic motor controller, in particular to a valve core of a blade hydraulic motor controller with low pressure and large displacement, and belongs to the field of hydraulic technology. Background technique [0002] The vane hydraulic motor is an important hydraulic actuator. It has small volume, small moment of inertia, and sensitive action. It is suitable for occasions with high speed, small torque and sensitive action requirements. Among them, low-pressure large-displacement vane hydraulic motors are often used in modern large-scale ship deck machinery, including towing winches and other products. As the core hydraulic components, their performance plays a decisive role in the overall performance of deck machinery. With the development of large-scale and super-large deck machinery, the output torque and control precision of the vane hydraulic motor are required to be higher, so the structure of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K47/02
Inventor 熊小平王荣军梁媛万晓红石磊方敏
Owner WUHAN MARINE MACHINERY PLANT
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