CN203176036U - Digital prefill valve - Google Patents
Digital prefill valve Download PDFInfo
- Publication number
- CN203176036U CN203176036U CN 201320066078 CN201320066078U CN203176036U CN 203176036 U CN203176036 U CN 203176036U CN 201320066078 CN201320066078 CN 201320066078 CN 201320066078 U CN201320066078 U CN 201320066078U CN 203176036 U CN203176036 U CN 203176036U
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- CN
- China
- Prior art keywords
- valve
- lead screw
- digital
- servo motor
- valve element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a digital prefill valve. The digital prefill valve comprises a valve body and a valve element, wherein a flange is arranged at the rear end of the valve element and is fixedly connected with a lead screw nut, the rear end of the valve body is fixedly connected with a servo motor and then is fixedly connected with a lead screw, the lead screw and the lead screw nut are in transmission connection, and the servo motor is connected with a driving device and a PLC. According to the digital prefill valve, the PLC outputs a signal to the stepping driving device through a program, the signal is converted and then is transmitted to the linear stepping servo motor and is converted into the angular displacement of the lead screw, the linear displacement of the lead screw nut is achieved, the flange and the valve element can move forwards, and the valve element is opened and oil flows back; when the valve element is closed, the PLC sends a signal to enable the linear stepping servo motor to rotate oppositely, the lead screw nut drives the flange to move backwards, the valve element is in contact with the valve body, the stepping servo motor outputs torque, and the close contact between the valve element and the valve body is guaranteed. The digital prefill valve has the advantages that the digitization of a traditional hydraulic cylinder is achieved and the improvement of the traditional hydraulic technique is promoted.
Description
Technical field
The utility model relates to a kind of digital liquid-filling valve, belongs to the hydraulic equipment technical field.
Background technique
Liquid-filling valve is a kind of at hydraulic pressure sector application and executive component widely thereof, traditional liquid-filling valve is to promote valve core movement by a single small cylinder, open to making spool, fluid is back in the fuel tank fast, in the time of need closing, small cylinder stops oil-feed, and spool and small cylinder piston rod are returned to the origin-location under the effect of spring force.The small cylinder action of this structure needs a small-sized traditional hydraulic station, and preparation is got up and trouble and cost height.
The model utility content
The purpose of this utility model is to provide a kind of digital liquid-filling valve, realizes digitizing, the automation of traditional liquid-filling valve, cuts down finished cost, and simplifies workman's control operation, promotes the conventional hydraulic development of technology.
To achieve these goals, the technical solution of the utility model is: a kind of digital liquid-filling valve, comprise valve body, spool, described spool rear end arranges flange, fixedly connected feed screw nut behind the described flange, the fixedly connected actuating motor of described valve rear end, the fixedly connected screw mandrel of described actuating motor, cavity and feed screw nut that described screw mandrel puts in valve body are in transmission connection, and described actuating motor is connected with driver, and described driver connects PLC can compile controller.
Further, described actuating motor is the linear type step-servo motor.
Further, described driver is step actuator.
Digital liquid-filling valve of the present utility model, PLC can compile controller and output signal to step actuator by programming, step actuator is passed to the linear type step-servo motor after the output signal of PLC is transformed, the linear type step-servo motor is converted into the leading screw angular displacement to the electrical pulsing signal that receives, feed screw nut is converted to straight-line displacement by the angular displacement of leading screw, thereby realize that flange drives spool and moves forward, after spool was opened like this, fluid refluxed.When needing spool to close by the time, controller sends signal and makes the counter-rotating of linear type step-servo motor, at this moment, it is mobile backward that feed screw nut drives flange, contacts with valve body until spool, then, step-servo motor is exported certain moment again, guarantees closely to contact between spool and the valve body.The digital liquid-filling valve of this structure has not only been cancelled complicated design of Hydraulic System and the design of various manifold block and processing, but also field adjustable has repeatedly been cancelled.Simplify workman's operation, easily realize control.Thereby the processing cost of greatly reducing and working strength of workers.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is further described below in conjunction with accompanying drawing and specific embodiment.
As shown in Figure 1, digital liquid-filling valve of the present utility model, comprise valve body 8, spool 7, described spool 7 rear ends arrange flange 6, the described flange 6 fixedly connected feed screw nuts 5 in back, the fixedly connected actuating motor 3 in described valve body 8 rear ends, described actuating motor 3 fixedly connected screw mandrels 4, cavity and feed screw nut 5 that described screw mandrel 4 puts in valve body 8 are in transmission connection, and described actuating motor 3 is connected with driver 2, and described driver 2 connects PLC and can compile controller 1.
Described actuating motor 3 is the linear type step-servo motor.
Described driver 2 is step actuator.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model all falls within the protection domain of the present utility model.
Claims (3)
1. digital liquid-filling valve, comprise valve body, spool, it is characterized in that: described spool rear end arranges flange, fixedly connected feed screw nut behind the described flange, the fixedly connected actuating motor of described valve rear end, cavity and feed screw nut that the fixedly connected screw mandrel of described actuating motor, described screw mandrel put in valve body are in transmission connection, described actuating motor is connected with driver, and described driver connects PLC can compile controller.
2. digital liquid-filling valve according to claim 1, it is characterized in that: described actuating motor is the linear type step-servo motor.
3. digital liquid-filling valve according to claim 1, it is characterized in that: described driver is step actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066078 CN203176036U (en) | 2013-02-05 | 2013-02-05 | Digital prefill valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320066078 CN203176036U (en) | 2013-02-05 | 2013-02-05 | Digital prefill valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176036U true CN203176036U (en) | 2013-09-04 |
Family
ID=49072739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320066078 Expired - Fee Related CN203176036U (en) | 2013-02-05 | 2013-02-05 | Digital prefill valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762918A (en) * | 2017-03-13 | 2017-05-31 | 重庆江东机械有限责任公司 | A kind of quick response topping up valve system with position control |
-
2013
- 2013-02-05 CN CN 201320066078 patent/CN203176036U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762918A (en) * | 2017-03-13 | 2017-05-31 | 重庆江东机械有限责任公司 | A kind of quick response topping up valve system with position control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130904 Termination date: 20160205 |