A motor-driven cartridge servo valve
A motor-driven, servo valve technology, applied in the hydraulic field, can solve the problems of complex structure of the cartridge servo valve, troublesome debugging and maintenance, complicated control system, etc., and achieve the effects of easy debugging and maintenance, low cost and simple operation.
Active Publication Date: 2016-08-03
AEMETEC
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The structure of this cartridge servo valve is complicated, and two position sensors need to be installed on the valve core and the servo valve core to realize multi-closed-loop control.
In order to meet the hydraulic oil requirements of the servo valve, it is also necessary to configure an independent high-filtration oil source, and its control system is also more complicated, debugging and maintenance are more troublesome, the cost is higher, and the price is more expensive
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
[0026] Such as figure 2 As shown, a motor-driven cartridge servo valve provided by the present invention includes a valve body 1, a valve core 2, a gland 3 with a nut and an oil return port, a valve core controller 4, and a motor support 5. Sliding coupling 6, motor 7, spring 8, etc., valve body 1 has flow channels such as P, B, O, etc., spool controller 4 has multiple steps and is installed in spool 2, spool 2 There is a channel on the top to guide the high-pressure oil from P to the step of the spool controller 4. There is a screw thread at one end of the spool controller 4, which matches the nut on the gland 3. The upper part of the spool 2 A spring 8 is installed, and the spring 8 is encapsulated in the valve body 1 by the gland 3, and the gland 3 is connected with the valve body 1 through bolts.
[0027] When the motor rotates, the slide coupling drives the sliding key to move, thereby driving the spool controller 4 to move axially, and the spool 2 tracks the spool cont...
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
An inserting servo valve driven by a motor comprises a motor, a valve element controller, a pressing cover, a valve body and a valve element. The valve body and the valve element are provided with flow channels. The valve element is mounted in the valve body, and the flow channels of the valve element match with those of the valve body. The pressing cover is fixedly mounted on the valve body and is provided with a return opening and a nut. The valve element controller is mounted in the valve element and is connected with the motor; the upper end of the valve element controller is provided with a screwed buckle, and the valve element controller is connected to the nut of the pressing cover through the screw in a matching manner. The inserting server valve driven by the motor is simple to control, low in cost and high in practicality; if a flow monitoring device and a position detecting device are added, the rotating speed, rotating angle and direction of the motor can be controlled in real time, so that direction, speed and position of an cylinder can be controlled accurately, functions of a proportional valve and a server valve are completed, and a multifunctional valve is realized.
Description
technical field [0001] The invention relates to the hydraulic field, in particular to a motor-driven cartridge servo valve. Background technique [0002] In fluid transmission, the three-way or multi-way plug-in servo valve has the advantages of simple structure and large flow rate, and is widely used in hydraulic systems, especially the hydraulic control of heavy-duty hosts, which is inseparable from the three-way or multi-way plug-in servo valve. Servo valve installed, such as figure 1 As shown, the traditional three-way or multi-way cartridge servo valve uses the existing servo valve and servo cylinder principle to make the piston stem of the servo cylinder into a valve core, and controls the displacement of the piston rod to control the valve opening, thereby controlling the output. flow. This cartridge servo valve has a complicated structure, and two position sensors need to be installed on the spool and the servo spool to realize multi-closed-loop control. In order ...
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): F15B13/02
Inventor 杨世祥杨涛杨帆李桂英
Owner AEMETEC