Speed control apparatus for hydraulic actuator
A technology of speed control device and hydraulic actuator, which is applied in fluid pressure actuation device, transmission device control, pump control, etc., and can solve the problems of reduced service life, reduced actuator 1 efficiency, reduced durability, etc.
Inactive Publication Date: 2004-08-18
SAMSUNG HEAVY IND CO LTD
View PDF0 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the case where the pressure of the actuator 1 is set to a low state, the efficiency of the actuator 1 is reduced, conversely, in the case where the pressure of the actuator 1 is set to a high state, the Overloading occurs in the actuator of the device so as to reduce its durability and reduce the life of the product
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The configuration of a speed control device for a hydraulic actuator according to a preferred embodiment of the present invention will be described below with reference to the accompanying drawings.
[0024] image 3 is a diagram of a speed control device for a hydraulic actuator according to the present invention; Figure 4 is according to the invention image 3 The enlarged view of the multi-speed modulating control valve in ; Figure 5 is the main part in the structure of the speed control device for the hydraulic actuator according to the present invention.
[0025] In order to simplify the description, the same components as those of the conventional art will be given the same reference numerals.
[0026] As shown in the figure, the speed control device for a hydraulic actuator according to the present invention includes: a hydraulic pressure source (not shown) such as a hydraulic pump; An actuator 1 that rotates, stops, or reverses rotation; a reversing valve ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The speed control apparatus for a hydraulic actuator includes a hydraulic source, an actuator connected with the hydraulic source and driven based on a supply of an operation oil, a direction switching valve which is switchably installed in a flow path between the hydraulic source and the actuator, an inclination piston which is installed between a parallel flow path in parallel connected with a flow path in a supply side of the actuator and the actuator for thereby controlling an inclination angle of an inclination plate of the actuator, a multi-step adjusting inclination piston which is driven when an operation oil is supplied, and adjusts an inclination angle of an inclination plate of the actuator based on multiple steps, and a multi-step adjusting control valve which is switchably installed in a flow path between the parallel flow path and the multi-step adjusting inclination piston, controls an operation oil supplied to the multi-step adjusting inclination piston, and adjusts a speed of the actuator. The multi-step adjusting control valve is formed of a first zone in which the actuator is rotated at a high speed, a second zone in which the actuator is rotated at an intermediate speed, and a third zone in which the actuator is rotated at a low speed.
Description
technical field [0001] The present invention relates to a speed control device for a hydraulic actuator, which is set inside the actuator such as a hydraulic motor, or connected to the outside of the actuator, and can adjust the speed of the actuator through multiple gears. speed, the present invention relates in particular to a speed control device for a hydraulic actuator, which is capable of distributing the load acting on the hydraulic actuator and regulating the speed of the hydraulic actuator according to the load condition of the actuator, Thereby improving the sensitivity. Background technique [0002] figure 1 diagram representing a hydraulic actuator with a conventional speed control device, figure 2 yes figure 1 An enlarged view of the control valve in Fig. [0003] As shown in the drawing, the speed control device for a hydraulic actuator includes: a hydraulic pressure source (not shown) such as a hydraulic pump; Stopping and counter-rotating actuator 1, a ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): F15B11/02F04B49/00F15B7/02F15B11/04F15B15/22F16H61/42F16H61/423
CPCF16H61/42F04B49/002F16H61/423F15B15/22
Inventor 周永模
Owner SAMSUNG HEAVY IND CO LTD