CN208294866U - A kind of direct-drive type proportional servo valve - Google Patents
A kind of direct-drive type proportional servo valve Download PDFInfo
- Publication number
- CN208294866U CN208294866U CN201820590803.0U CN201820590803U CN208294866U CN 208294866 U CN208294866 U CN 208294866U CN 201820590803 U CN201820590803 U CN 201820590803U CN 208294866 U CN208294866 U CN 208294866U
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- China
- Prior art keywords
- torque
- motor
- controller
- spool
- proportional servo
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Abstract
The utility model discloses a kind of direct-drive type proportional servo valves, including valve body, torque-motor, the left end of the valve body is fixedly connected with controller, the right end of the valve body is connected with torque-motor, the side of the controller is provided with connector assembly, the controller upper end is provided with control panel, displacement sensor is provided in the controller, the induction end of institute's displacement sensors is connected directly with iron core push rod, the torque-motor is connected by pull rod with spool, the pull rod is provided with centralizing spring in torque-motor right end, the right end of the torque-motor is provided with the capsul to protect torque-motor.The utility model is scientific and reasonable, when torque-motor overcomes centralizing spring resistance band movable valve plug or so to deviate, to spool displacement real-time monitoring and torque-motor can be fed back to by the displacement sensor in the controller of setting, improve the precision and dynamic responding speed of proportional servo valve.
Description
Technical field
The utility model belongs to proportional servo valve technical field, and in particular to a kind of direct-drive type proportional servo valve.
Background technique
Current hydraulic drive field carries out the control of fluid flow frequently with proportional servo valve, and proportional servo valve has become
Indispensable one of element in automation field, therefore the quality of proportional servo valve has important shadow to the quality of product
It rings.Existing proportional servo valve is all made of proportion electro-magnet dragging spool and works, and based on open loop, is watched using the ratio of such mode
Taking valve, there is control accuracy difference, the low problems of dynamic response.
Utility model content
The purpose of this utility model is to provide a kind of direct-drive type proportional servo valves, to solve to propose in above-mentioned background technique
The technical issues of.
In order to solve the above technical problems, the utility model provides the following technical solutions: a kind of direct-drive type proportional servo valve, packet
Valve body, torque-motor are included, the left end of the valve body is fixedly connected with controller, and the right end of the valve body is connected with torque-motor,
The side of the controller is provided with connector assembly, and the controller upper end is provided with control panel, is provided with position in the controller
Displacement sensor, induction end and the iron core push rod of institute's displacement sensors are connected directly, and the torque-motor passes through pull rod and spool
It is connected, the pull rod is provided with centralizing spring in torque-motor right end.
Preferably, spool is provided in the valve body, the spool is connected by valve pocket with valve body, the left end of the spool
It is provided with the iron core push rod being connected directly with spool, the outer end of the iron core push rod is provided with sealing shroud, the right end of the spool
It is connected with one end of pull rod.
Preferably, institute's displacement sensors and control panel pass through electric connection.
Preferably, the valve shell is provided with oil inlet, oil outlet is connected to valve pocket inner cavity.
Preferably, the right end of the torque-motor is provided with the capsul to protect torque-motor.
Preferably, zeroing screw is provided in the control panel.
Compared with prior art, the utility model has the beneficial effects that the utility model is scientific and reasonable for structure, on a valve body left side
Setting one controller in end can pass through control when torque-motor overcomes centralizing spring resistance by pull rod band movable valve plug or so offset
The displacement sensor being connected in device processed with body cavity quickly detects spool displacement, and precision is high, and dynamic response is high, effectively controls
The output flow of valve body substantially increases the quality of proportional servo valve.
Detailed description of the invention
Fig. 1 is direct-drive type proportional servo valve structural schematic diagram.
In figure: 1- controller；2- zeroing screw；3- control panel；4- displacement sensor；5- sealing shroud；6- iron core push rod；7-
Connector assembly；8- valve pocket；9- spool；10- pull rod；11- torque-motor；12- centralizing spring；13- capsul.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, following examples provided by the utility model: a kind of direct-drive type proportional servo valve, including valve body, power
Square motor 11 is fixedly connected with the controller 1 moved to control valve core 9 in the left end of valve body, is connected in the right end of valve body
Torque-motor 11, to provide driving power to valve body；The side of controller 1 is provided with the connector assembly 7 of connection power supply, is controlling
1 upper end of device processed is provided with the control panel 3 of operation controller 1, and displacement sensor 4, displacement sensor 4 are provided in controller 1
Induction end be connected directly with iron core push rod 6, the other end of the separate induction end of displacement sensor 4 is connected with fixed link, torque
Motor 11 is connected by pull rod 10 with spool 9, and pull rod 10 is provided with centralizing spring 12, torque horse in 11 right end of torque-motor
It is deviated up to 11 by pull rod 10 with movable valve plug 9 or so after overcoming 12 resistance of centralizing spring.
Further, spool 9 is provided in valve body, spool 9 is connected with valve body by valve pocket 8, is set in the left end of spool 9
It is equipped with the iron core push rod 6 being connected directly with spool 9, the outer end of iron core push rod 6 is provided with the sealing to protect iron core push rod 6
Set 5, the right end of spool 9 is connected with one end of pull rod 10, and then is moved by pull rod 10 with movable valve plug 9.
Further, displacement sensor 4 and control panel 3, can be by control panels 3 to displacement sensor 4 by being electrically connected
It is operated.
Further, valve shell is provided with oil inlet, oil outlet is connected to 8 inner cavity of valve pocket.
Further, the right end of torque-motor 11 is provided with the capsul 13 to protect torque-motor 11.
Further, zeroing screw 2 is provided in control panel 3.
Further, valve body left and right ends are bolted to connection with controller 1, torque-motor 11.
Working principle: being powered on by connector assembly first, and when not input signal, centralizing spring makes spool be in middle position；
When controller is to torque-motor output signal, torque-motor provides driving force and overcomes centralizing spring according to the signal of input
Resistance, band movable valve plug left or right deviates, while the offset of spool can be monitored in real time by the displacement sensor that left end connects, together
When displacement sensor the spool displacement signal monitored is fed back into torque-motor again, torque-motor can be by feedback signal into one
Accurately band movable valve plug is mobile for step, thus further increases the precision and dynamic response of proportional servo valve, accurately controls ratio
The output flow of example servo valve.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
Claims (6)
1. a kind of direct-drive type proportional servo valve, including valve body, torque-motor (11), it is characterised in that: the left end of the valve body is solid
Surely it is connected with controller (1), the right end of the valve body is connected with torque-motor (11), and the side of the controller (1) is provided with
Connector assembly (7), controller (1) upper end are provided with control panel (3), are provided with displacement sensor in the controller (1)
(4), the induction end of institute's displacement sensors (4) is connected directly with iron core push rod (6), and the torque-motor (11) passes through pull rod
(10) it is connected with spool (9), the pull rod (10) is provided with centralizing spring (12) in torque-motor (11) right end.
2. a kind of direct-drive type proportional servo valve according to claim 1, it is characterised in that: be provided with spool in the valve body
(9), the spool (9) is connected by valve pocket (8) with valve body, and the left end of the spool (9) is provided with to be connected directly with spool (9)
Iron core push rod (6), the outer end of the iron core push rod (6) is provided with sealing shroud (5), the right end and pull rod of the spool (9)
(10) one end is connected.
3. a kind of direct-drive type proportional servo valve according to claim 1, it is characterised in that: institute's displacement sensors (4) and control
Disk (3) processed passes through electric connection.
4. a kind of direct-drive type proportional servo valve according to claim 1, it is characterised in that: the valve shell is provided with oil inlet
Mouth, oil outlet are connected to valve pocket (8) inner cavity.
5. a kind of direct-drive type proportional servo valve according to claim 1, it is characterised in that: the right end of the torque-motor (11)
It is provided with the capsul (13) to protect torque-motor.
6. a kind of direct-drive type proportional servo valve according to claim 1, it is characterised in that: be provided on the control panel (3)
It returns to zero screw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590803.0U CN208294866U (en) | 2018-04-24 | 2018-04-24 | A kind of direct-drive type proportional servo valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820590803.0U CN208294866U (en) | 2018-04-24 | 2018-04-24 | A kind of direct-drive type proportional servo valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294866U true CN208294866U (en) | 2018-12-28 |
Family
ID=64725680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820590803.0U Expired - Fee Related CN208294866U (en) | 2018-04-24 | 2018-04-24 | A kind of direct-drive type proportional servo valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294866U (en) |
-
2018
- 2018-04-24 CN CN201820590803.0U patent/CN208294866U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181228 Termination date: 20200424 |