Two-way load manipulator electro-hydraulic actuator unit for shield machine single hob replacement
An electro-hydraulic actuator and mechanical arm technology, applied in mechanical equipment, servo meter circuits, fluid pressure actuating devices, etc., can solve the problem of less application of industrial robots, and achieve high reliability, good installation and maintenance, high power high density effect
Active Publication Date: 2021-10-19
ZHEJIANG UNIV
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Electro-Hydrostatic Actuator (EHA) is an integrated actuator that highly integrates discrete components such as motors, pumps, valves, cylinders, and actuators. Compared with traditional motor servo control systems, it has a small size , large hydraulic output force, flexible control, etc., have been fully developed in the flight control systems of large airliners and advanced fighters, but are rarely used in industrial robots.
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
[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and the specific implementation process.
[0039] Such as figure 1 As shown, the specific implementation device includes an electro-hydraulic actuator 100 and a hydraulic cylinder 200, and the electro-hydraulic actuator 100 and the hydraulic cylinder 200 are connected;
[0040] The electro-hydraulic actuator 100 includes an EHA servo motor 101, an EHA valve block 114, an EHA oil tank 111, and an EHA bidirectional high-pressure plunger pump 120. The EHA servo motor 101 and the EHA oil tank 111 are installed on both sides of the EHA valve block 114 through bolts. The oil tank 111 is filled with oil and is equipped with an EHA bidirectional high-pressure plunger pump 120. The output shaft of the EHA servo motor 101 passes through the center hole of the EHA valve block 114 and is coaxial with the input shaft of the EHA bidirectional high-pressure plunger pump 120 in...
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 invention discloses an electro-hydraulic actuator unit of a bidirectional load manipulator used for replacing a single hob of a shield machine. It includes electro-hydraulic actuator and hydraulic cylinder, and the connection between electro-hydraulic actuator and hydraulic cylinder; electro-hydraulic actuator includes servo motor, valve block, oil tank and bidirectional high-pressure plunger pump, and the servo motor and oil tank are installed on both sides of the valve block. On the side, the fuel tank is filled with oil and equipped with a bidirectional high-pressure plunger pump. The output shaft of the servo motor passes through the center hole of the valve block and is coaxially connected with the input shaft of the bidirectional high-pressure plunger pump in the fuel tank. The invention provides an electro-hydraulic actuator unit with high integration, high power density, high reliability and good installation and maintainability for the tool changing mechanical arm.
Description
technical field [0001] The invention relates to an electro-hydraulic actuator of a mechanical arm in the field of hydraulic robots, in particular to an electro-hydraulic actuator unit of a mechanical arm used for replacing a single hob of a full-face tunneling machine. Background technique [0002] During the construction process of the full-face tunnel boring machine, the tool consumption is large and the replacement is frequent. The tool change operation time accounts for more than 10% of the tunnel construction period. The existing tool change work mainly relies on manual work, and it is operated in construction environments such as large buried depth and high water pressure. Potential safety hazards are large, and major safety accidents such as casualties are prone to occur. According to statistics, nearly 70% of tunnel construction safety accidents in China are directly related to manual tool change operations. With the increase in the amount of tunnel construction pro...
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 Patents(China)
IPC IPC(8): F15B15/18F15B15/20F15B15/28F15B15/26F15B21/02F15B21/041E21D9/087
CPCE21D9/087F15B15/18F15B15/202F15B15/26F15B15/2815F15B21/02F15B21/041F15B2015/268F15B2211/615
Inventor 谢海波朱涛杨华勇
Owner ZHEJIANG UNIV