CN204299997U - A kind of rotating disc type electrohydraulic servo valve controlled by driven by servomotor - Google Patents
A kind of rotating disc type electrohydraulic servo valve controlled by driven by servomotor Download PDFInfo
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- CN204299997U CN204299997U CN201420613770.9U CN201420613770U CN204299997U CN 204299997 U CN204299997 U CN 204299997U CN 201420613770 U CN201420613770 U CN 201420613770U CN 204299997 U CN204299997 U CN 204299997U
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- servomotor
- servo valve
- servo
- slave computer
- rotating disc
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Abstract
The rotating disc type electrohydraulic servo valve controlled by driven by servomotor, be can be used in the high servo-control system of required precision.Embodiment of the present utility model, not only can meet the structural requirement of servo valve under poor working conditions, can also promote the performance and used life of servo valve; The servo valve of host computer, slave computer, servo controller, servomotor, shaft coupling, band turntable structure is comprised by the main body of the rotating disc type electrohydraulic servo valve of servomotor Direct driver.It is control signal order that host computer and slave computer are used to required data transformations; Servo controller is used to connect slave computer and servomotor, plays the effect improving control accuracy; Servomotor provides active rotation power; Shaft coupling is used for connecting servomotor and the servo valve being with turntable structure.This utility model key design external servomotor of application provides power to control the structure of servo valve inner stream flow, instead of dependence servo valve inner magnet field force in the past to provide the structure of power.
Description
Technical field
The utility model relates to a kind of rotating disc type electrohydraulic servo valve by servomotor Direct driver.
Background technology
At present, the structural design for servo valve has carried out a lot of correlative study, and it mainly concentrates on electrohydraulic servo valve aspect.Traditional servo valve is all convert the electrical signal to as displacement signal by inner torque-motor or force motor; Its hydraulic amplifier structure many employings side valve type, nozzle baffle type and jet pipe type, its leakage rate causes more greatly error to become large; The rotating disc type servo valve compact internal structure of recent appearance is complicated, once go wrong in running, and maintenance trouble, cost is higher; Generic servo valve relies on external impressed current control under magnetic field force effect to produce error, therefore in some occasions higher to servo valve control required precision, adopt the utility model by the rotating disc type electrohydraulic servo valve of servomotor Direct driver, operate steadily, control accuracy is high.
Servomotor, servo valve, control device effectively combine by the rotating disc type electrohydraulic servo valve of the servomotor Direct driver that the utility model relates to, thus realize the operating accuracy and the reliability that improve the operation of servomotor direct drive servovalve, meet high-precision applications demand.
Utility model content
The purpose of this utility model is to provide a kind of rotating disc type electrohydraulic servo valve by servomotor Direct driver, improves and improves traditional servo valve structure.
Comprised by the agent structure of the rotating disc type electrohydraulic servo valve of driven by servomotor: host computer (1), slave computer (2), servo controller (3), servomotor (4), shaft coupling (5), the servo valve (6) of rotary-disk type structure, the turntable structure (7) on servo valve; Described host computer (1) is directly connected with slave computer (2), slave computer (2) is connected with servo controller (3), servo controller (3) is connected with servomotor (4), the rotation of servomotor (4) is controlled by servo controller (3), servomotor (4) is connected by shaft coupling (5) with the servo valve (6) of band turntable structure, one end of shaft coupling (5) connects servomotor (4), and the other end connects turntable structure (7);
Whole system adopts closed-loop control, sends instruction flow to slave computer by Artificial Control host computer, and slave computer obtains after instruction and exports control signal by servo controller, and slave computer also can fetch equipment status data change into data signal and feed back to host computer; Servomotor starts after receiving drive singal to rotate, and synchronously drives dial rotation by shaft coupling simultaneously; This servo valve controls the traffic channel of the inner each flow mouth of rotating disk and servo valve inside just contact area by dial rotation controls its flow; By requiring to input corresponding control program further on host computer to the difference of flow.
The beneficial effects of the utility model: by the design of the rotating disc type electrohydraulic servo valve to servomotor Direct driver, utilize closed-loop control system can control the rotation of servomotor in real time, the good dynamic characteristics of effective raising system in SERVO CONTROL process, positioning precision and operation stability; By the design of using servomotor to control rotating disc type servo valve, not only can meet the structural requirement of servo valve under poor working conditions, the performance and used life of servo valve can also be promoted; Utilize the design of external servomotor direct drive servovalve structure, effectively solve the transformation that current servo motor direct-drive servo valve grows out of nothing, also for technology further develop and improve provide certain reference.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the utility model by the rotating disc type electrohydraulic servo valve of servomotor Direct driver.
Fig. 2 is the structural representation that servo valve inside contacts with rotating disk.
Fig. 3 is the structural representation that rotating disk is connected with inside.
Fig. 4 is the overall structure block diagram of utility model works process.
Wherein: 1-host computer, 2-slave computer, 3-servo controller, 4-servomotor, 5-shaft coupling, 6-is with the servo valve of turntable structure, 7-rotating disk.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further:
A kind of overall structure schematic diagram by the rotating disc type servo valve of servomotor Direct driver as shown in Figure 1, mainly comprises the servo valve 6 of host computer 1, slave computer 2, servo controller 3, servomotor 4, shaft coupling 5, band turntable structure.Figure 2 shows that rotating disc type servo valve internal structure schematic diagram.Its concrete operating process is as follows: A) on host computer, input dependent instruction; B) host computer and slave computer are directly connected dependent instruction are flowed to slave computer; C) slave computer is connected with servo controller, and the instruction that host computer sends by slave computer is construed to corresponding time sequence signal and exports control signal to control servo controller; D) servo controller is connected with servomotor, and servo controller is carried the signal of coming to control servomotor by slave computer and rotated; E) other end of servomotor is connected by shaft coupling with the servo valve of band turntable structure; F) one end of shaft coupling connects servomotor, and the other end connects in the rotating shaft of turntable structure; G) servomotor causes the contact area of each flow mouth of rotating disk inside and the traffic channel of servo valve inside change and control its flow with this after driving turntable structure to rotate by rotating shaft.
By requiring to input corresponding control program to control further on host computer to the difference of flow, this servo-drive system slave computer also can read corresponding device status data and change into data signal and feed back to host computer, and these two aspects forms closed loop feedback mechanism.
Designed by the utility model of the rotating disc type electrohydraulic servo valve of above-mentioned servomotor Direct driver, a kind of high-precision servo valve arrangement of stable performance can be obtained, the good dynamic characteristics of effective raising system in SERVO CONTROL process, positioning precision and operation stability.
Claims (2)
1., by the rotating disc type electrohydraulic servo valve that driven by servomotor controls, it is characterized in that:
Comprised by the agent structure of the rotating disc type electrohydraulic servo valve of driven by servomotor: host computer (1), slave computer (2), servo controller (3), servomotor (4), shaft coupling (5), the servo valve (6) of rotary-disk type structure, the turntable structure (7) on servo valve; Described host computer (1) is directly connected with slave computer (2), slave computer (2) is connected with servo controller (3), servo controller (3) is connected with servomotor (4), the rotation of servomotor (4) is controlled by servo controller (3), servomotor (4) is connected by shaft coupling (5) with the servo valve (6) of band turntable structure, one end of shaft coupling (5) connects servomotor (4), and the other end connects turntable structure (7);
Whole system adopts closed-loop control, sends instruction flow to slave computer by Artificial Control host computer, and slave computer obtains after instruction and exports control signal by servo controller, and slave computer also can fetch equipment status data change into data signal and feed back to host computer; Servomotor starts after receiving drive singal to rotate, and synchronously drives dial rotation by shaft coupling simultaneously; This servo valve controls the traffic channel of the inner each flow mouth of rotating disk and servo valve inside just contact area by dial rotation controls its flow; By requiring to input corresponding control program further on host computer to the difference of flow.
2. a kind of rotating disc type electrohydraulic servo valve controlled by driven by servomotor according to claim 1, be is characterized in that: adopt external servomotor (4) to substitute traditional control mode; Shaft coupling is used to realize synchronous axial system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420613770.9U CN204299997U (en) | 2014-10-09 | 2014-10-09 | A kind of rotating disc type electrohydraulic servo valve controlled by driven by servomotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420613770.9U CN204299997U (en) | 2014-10-09 | 2014-10-09 | A kind of rotating disc type electrohydraulic servo valve controlled by driven by servomotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204299997U true CN204299997U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420613770.9U Active CN204299997U (en) | 2014-10-09 | 2014-10-09 | A kind of rotating disc type electrohydraulic servo valve controlled by driven by servomotor |
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| Country | Link |
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| CN (1) | CN204299997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265711A (en) * | 2014-09-11 | 2015-01-07 | 镇江四联机电科技有限公司 | Turntable electro-hydraulic servo valve directly driven by servo motor |
| CN107237915A (en) * | 2017-06-09 | 2017-10-10 | 镇江四联机电科技有限公司 | A kind of servo valve of closed-loop control flow |
-
2014
- 2014-10-09 CN CN201420613770.9U patent/CN204299997U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265711A (en) * | 2014-09-11 | 2015-01-07 | 镇江四联机电科技有限公司 | Turntable electro-hydraulic servo valve directly driven by servo motor |
| CN107237915A (en) * | 2017-06-09 | 2017-10-10 | 镇江四联机电科技有限公司 | A kind of servo valve of closed-loop control flow |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |