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Digital reversing valve driven by servo motor

A servo motor and reversing valve technology, applied in valve details, valve devices, multi-port valves, etc., can solve problems such as flow pulsation and uneven force on the valve core.

Inactive Publication Date: 2022-06-24
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of vibration, flow pulsation and uneven force on the valve core existing in the existing servo motor-driven digital reversing valve, and propose a servo motor-driven digital reversing valve

Method used

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  • Digital reversing valve driven by servo motor
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specific Embodiment approach 1

[0024] Specific embodiment one: the following combination figure 1 Describing this embodiment, a servo motor-driven digital directional valve described in this embodiment includes: an absolute encoder 1, a servo motor 2, a limit block 6, a valve body 9, a valve core 10, a threaded connecting rod 12, Screw sleeve 13 and servo motor controller;

[0025] The absolute encoder 1 is used to detect the rotational displacement of the output shaft of the servo motor 2, and send the detected rotational displacement signal of the output shaft to the servo motor controller, and the servo motor controller is used to control the servo according to the rotational displacement signal of the output shaft. Rotational displacement of motor 2;

[0026] One end of the screw sleeve 13 is sleeved on the output shaft of the servo motor 2, the screw sleeve 13 rotates with the output shaft of the servo motor 2, the other end of the screw sleeve 13 is internally threaded with a threaded connecting rod ...

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Abstract

The invention discloses a digital reversing valve driven by a servo motor, and relates to the technical field of hydraulic and pneumatic transmission control valves. The problems of vibration, flow pulsation and uneven stress of a valve element of an existing digital reversing valve driven by a servo motor are solved, the valve element is sleeved with a valve body, the valve body is an O-shaped meso-position function three-position four-way valve body, and when the valve element is located at the meso-position of the valve body, the valve element is driven by the servo motor to rotate. A working cavity A, a working cavity B, an oil inlet P and an oil return opening T of the O-shaped meso-position function three-position four-way valve body are not communicated with one another, a servo motor rotates to drive a threaded sleeve to rotate, the threaded sleeve rotates to drive a threaded connecting rod to move leftwards or rightwards in the axial direction, when a valve element moves rightwards, the working cavity A of the O-shaped meso-position function three-position four-way valve body is communicated with the oil return opening T, the working cavity B is communicated with the oil inlet P, and the working cavity A is communicated with the oil return opening T; the working cavity B works; when the valve element moves leftwards, the working cavity A is communicated with the oil inlet P, the working cavity B is communicated with the oil return opening T, and the working cavity A works. The reversing valve is suitable for oil reversing.

Description

technical field [0001] The invention relates to the technical field of digital reversing valves, in particular to a servo motor-driven digital reversing valve. Background technique [0002] At present, hydraulic transmission technology has made significant progress in achieving high speed, high efficiency, low noise, digitization, and intelligence. The hydraulic system is composed of power components, actuators, control components, and auxiliary components. As a control component in the hydraulic control system, the hydraulic valve controls the oil flow direction in the hydraulic system, adjusts the flow rate and system pressure of the hydraulic system, and changes the hydraulic pressure. The working state of the actuator. Hydraulic valve is divided into slide valve, poppet valve and ball valve according to the valve core structure. The traditional hydraulic technology combined with modern electronic information technology digitizes the hydraulic components, changes the dr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K11/07F16K31/04F16K31/50F16K47/02F16K47/04
CPCF16K31/50F16K11/065F16K31/047F16K27/04F16K3/314F15B13/02
Inventor 张健王晓晶张洋
Owner NORTHEAST FORESTRY UNIVERSITY
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