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Digital servo hydraulic motor

A hydraulic motor, digital technology, applied in servometer circuits, fluid pressure actuation devices, fluid pressure actuation system components, etc., can solve problems such as limited applications, achieve easy integration and linkage, increase output power, and achieve integration and linkage effect

Inactive Publication Date: 2016-11-09
王林翔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By using a pump-controlled motor system, the overall energy efficiency of the system can be greatly improved, but each motor needs a single hydraulic pump and motor, which limits its application
[0004] In addition, various actuator components and units used in industrial robots and automated production lines also require actuators to have high power density, high torque output, high reliability, high protection, small size, and easy installation and maintenance. , while traditional hydraulic motors are difficult to meet the above requirements

Method used

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Such as figure 1 shown. In the digital control system 1, the outgoing signal is amplified by the power amplifier 2 and reaches the stepper motor of the rotary oil distribution valve 6 to control the movement of the stepper motor. The accumulator 3 is connected with the oil supply circuit, and the oil discharge groove 7 is connected with the oil return circuit 4 . In order to make the structure simple, an oil supply tank 5 is designed inside the rotary oil distribution valve, and the pressure oil is in the oil supply tank. Whenever an oil distribution piston moves to make the oil supply pipeline 8 communicate with the oil supply tank 5, the pressure oil flows to the plunger 9 . Similarly, the equipped valve is provided with an oil discharge groove 7, and when the slide valve 6 moves so that the oil supply pipeline 8 communicates with the oil discharge groove, ...

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Abstract

The invention provides a digital servo hydraulic motor. A stepping motor is adopted in the digital servo hydraulic motor to drive a cam mechanism to control a set of flow distributing sliding valves to act in sequence, pressure oil is sequentially distributed to different plunger cavities of a radial plunger motor according to a certain rule, and meanwhile hydraulic oil in other plunger cavities is sequentially led to an oil returning path (an oil tank). The output end is integrated with a cycloidal-pin wheel speed reduction mechanism to achieve low-speed output, the rotating speed is further reduced, and the stepping angle of the digital servo hydraulic motor is reduced. According to the basic principle, the stepping motor is utilized for driving the cam mechanism to rotate, an oil distributing valve element located at the specific angle is pushed, the reversing operation is conducted, and therefore the pressure oil entering the plunger cavities of the radial plunger motor is controlled. Switching control is conducted on the movement of each plunger, stepping output is achieved, low-speed output is achieved through the cycloidal-pin wheel speed reduction mechanism, and a servo control function is achieved.

Description

technical field [0001] The invention relates to a digital servo hydraulic motor (hereinafter referred to as a digital hydraulic motor) composed of a stepping motor, a radial slide valve oil distribution mechanism, a radial plunger motor, a speed reduction mechanism and a digital control system. More precisely, the present invention relates to an integrated, high-speed motor consisting of a micro stepper motor, a cam structure, a slide valve type distribution oil circuit system, a radial plunger hydraulic motor, a cycloidal pinwheel deceleration mechanism, and a controller. Precision digital servo hydraulic motor. Background technique [0002] As a hydraulic actuator, the hydraulic motor can convert hydraulic energy into mechanical energy to do work externally. It has a large power-to-weight ratio, and is especially suitable for driving rotary motion under heavy loads. It is widely used in injection molding machinery, ships, hoists, construction machinery, construction machi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B21/02
CPCF15B21/02F15B2211/00
Inventor 王林翔
Owner 王林翔
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