CN202468561U - Limitation control loop for PVG electro-hydraulic proportional valve - Google Patents
Limitation control loop for PVG electro-hydraulic proportional valve Download PDFInfo
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- CN202468561U CN202468561U CN2012201056551U CN201220105655U CN202468561U CN 202468561 U CN202468561 U CN 202468561U CN 2012201056551 U CN2012201056551 U CN 2012201056551U CN 201220105655 U CN201220105655 U CN 201220105655U CN 202468561 U CN202468561 U CN 202468561U
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- proportional valve
- hydraulic proportional
- remote controller
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Abstract
The utility model discloses a limitation control loop for a PVG electro-hydraulic proportional valve. The limitation control loop comprises a left limitation travel switch and a right limitation travel switch which are respectively arranged on a left rotation terminal and a right rotation terminal of an arm support, wherein the electric signal output ends of the left travel switch and the right travel switch are sequentially connected with the control signal input ends of a programmable logic controller (PLC), a remote controller and the PVG electro-hydraulic proportional valve; the PVG electro-hydraulic proportional valve is a single-coil and double-direction electromagnetic valve and comprises a working oil port A and a working oil port B; and the remote controller is an industrial wireless remote controller FST727P produced by the HBC company in Germany. Therefore, the limitation control loop realizes the limitation control of the conventional single-coil and double-direction PVG electro-hydraulic proportional valve well.
Description
Technical field
The utility model relates to a kind of PVG electro-hydraulic proportional valve of concrete sprayer tool hand, particularly a kind of spacing control loop that is used for the PVG electro-hydraulic proportional valve in concrete sprayer tool arm frame when revolution.
Background technique
As shown in Figure 1, concrete sprayer tool hand PVG electro-hydraulic proportional valve 1 commonly used is the solenoid valve of unicoil twocouese (actuator port A, B are arranged).The major function that it is realized is: feed hydraulic oil if set actuator port A, coil is connected direct current 6～12V voltage, and jib turns round left; Actuator port B feeds hydraulic oil, and coil is connected direct current 12～18V voltage, and jib is to right-hand rotation.The deficiency of this PVG electro-hydraulic proportional valve is: owing to adopt unicoil control, can not adopt traditional position limit switch to realize the left and right sides slewing limit control of jib.
The model utility content
The utility model technical problem to be solved is to the existing technology deficiency, a kind of spacing control loop that can realize the PVG electro-hydraulic proportional valve of safe and reliable spacing control to revolution about jib to be provided.
For solving the problems of the technologies described above; The technological scheme that the utility model adopted is: a kind of spacing control loop of PVG electro-hydraulic proportional valve; It comprises the left and right limitation travel switch of being located at the left and right revolution of jib terminal respectively, the be linked in sequence control signal input end of PLC, remote controller and PVG electro-hydraulic proportional valve of the electrical signal of this left and right position limit switch; This PVG electro-hydraulic proportional valve is the solenoid valve of unicoil twocouese, and it comprises actuator port A and actuator port B; This remote controller is the FST727P industrial radio remote controller that German HBC company produces.
Compared with prior art; The beneficial effect that the utility model had is: the utility model is introduced on the left and right limitation travel switch electrical signal basis at the control signal input end of existing PVG electro-hydraulic proportional valve; Increase PLC (programmable controller) and jointly control, thereby make the PVG electro-hydraulic proportional valve of existing unicoil twocouese pattern also can realize spacing control through position limit switch with Digiplex.
Description of drawings
Fig. 1 is the PVG electro-hydraulic proportional valve structural representation of existing unicoil control.
Fig. 2 is the spacing control loop schematic representation of the utility model PVG electro-hydraulic proportional valve.
Fig. 3 is spacing control principle figure for the utility model jib turns left.
Fig. 4 is the utility model control jib spacing control principle figure that turns right.
Embodiment
Like Fig. 2-shown in Figure 4; The spacing control loop of the utility model PVG electro-hydraulic proportional valve comprises the left and right limitation travel switch 2,3 of being located at the left and right revolution of jib terminal respectively, the be linked in sequence control signal input end of PLC (programmable controller) 4, remote controller 5 and PVG electro-hydraulic proportional valve 6 of the electrical signal of this left and right position limit switch 2,3.This PVG electro-hydraulic proportional valve 6 is solenoid valves of unicoil twocouese, and it comprises actuator port A and actuator port B.This remote controller 5 is FST727P industrial radio remote controllers that German HBC company produces; It has 24 way switch amounts and the output of 8 tunnel analog amounts; (or about) is operating as an analog output channel about its cross operating grip; Export direct current 6～12V or direct current 12～18V voltage respectively, thereby can reach hydraulic fluid port switching-over and the slow purpose that changes of hydraulic fluid port size.
Put in place when touching a left side or right lateral journey switch when a jib left side or right-hand rotation like this; The electrical signal of a left side or right lateral journey switch sends a signal to PLC; This signal of PLC identification is controlled remote controller again, and this remote controller can only be exported rightabout VDC, thereby reaches spacing purpose.
If when setting coil connection direct current 6～12V voltage of PVG electro-hydraulic proportional valve, its actuator port A feeds hydraulic oil, jib turns round left; Actuator port B fed hydraulic oil when the coil of PVG electro-hydraulic proportional valve was connected direct current 12～18V voltage, and jib is to right-hand rotation.As shown in Figure 3, when the coil of PVG electro-hydraulic proportional valve was connected direct current 6～12V voltage, actuator port A fed hydraulic oil; The jib revolution of turning left, run into the left limit position limit switch after, PLC sends signal; Forbid exporting direct current 6～12V voltage through remote controller, stop thereby jib is turned round left.At this moment, remote controller only allows to export direct current 12～18V voltage, and promptly the jib of concrete sprayer tool hand can only be to right-hand rotation.Otherwise, as shown in Figure 4, when the coil of PVG electro-hydraulic proportional valve is connected direct current 12～18V voltage; Actuator port B feeds hydraulic oil; Jib is toward right-hand rotation, run into the right limit position limit switch after, PLC sends signal; Forbid exporting direct current 12～18V voltage through remote controller, thereby jib is stopped to right-hand rotation.At this moment, remote controller only allows to export direct current 6～12V voltage, and promptly the jib of concrete sprayer tool hand can only turn round left.
Claims (1)
1. the spacing control loop of a PVG electro-hydraulic proportional valve; It is characterized in that comprising the left and right limitation travel switch of being located at the left and right revolution of jib terminal respectively, the be linked in sequence control signal input end of PLC, remote controller and PVG electro-hydraulic proportional valve of the electrical signal of this left and right position limit switch; This PVG electro-hydraulic proportional valve is the solenoid valve of unicoil twocouese, and it comprises actuator port A and actuator port B; This remote controller is the FST727P industrial radio remote controller that German HBC company produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201056551U CN202468561U (en) | 2012-03-20 | 2012-03-20 | Limitation control loop for PVG electro-hydraulic proportional valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201056551U CN202468561U (en) | 2012-03-20 | 2012-03-20 | Limitation control loop for PVG electro-hydraulic proportional valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468561U true CN202468561U (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201056551U Expired - Lifetime CN202468561U (en) | 2012-03-20 | 2012-03-20 | Limitation control loop for PVG electro-hydraulic proportional valve |
Country Status (1)
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| CN (1) | CN202468561U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925262A (en) * | 2014-05-06 | 2014-07-16 | 浙江科力车辆控制系统有限公司 | Cab hydraulic lifter allowed to be remotely and wirelessly controlled |
| CN103925261A (en) * | 2014-04-10 | 2014-07-16 | 中煤科工集团西安研究院有限公司 | Electrohydraulic-control anti-collision device for drilling machines |
| CN104279344A (en) * | 2013-07-11 | 2015-01-14 | 上海浦东汉威阀门有限公司 | Remote control automatic emptying valve |
-
2012
- 2012-03-20 CN CN2012201056551U patent/CN202468561U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279344A (en) * | 2013-07-11 | 2015-01-14 | 上海浦东汉威阀门有限公司 | Remote control automatic emptying valve |
| CN103925261A (en) * | 2014-04-10 | 2014-07-16 | 中煤科工集团西安研究院有限公司 | Electrohydraulic-control anti-collision device for drilling machines |
| CN103925261B (en) * | 2014-04-10 | 2015-11-18 | 中煤科工集团西安研究院有限公司 | A kind of rig electrichydraulic control anticollision device |
| CN103925262A (en) * | 2014-05-06 | 2014-07-16 | 浙江科力车辆控制系统有限公司 | Cab hydraulic lifter allowed to be remotely and wirelessly controlled |
| CN103925262B (en) * | 2014-05-06 | 2016-08-24 | 浙江科力车辆控制系统有限公司 | A kind of can the hydraulic cab lifting jack of wireless remote control |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 410014 Hunan province Changsha environmental science and Technology Park in Yuhua District Auto Road No. 6 Patentee after: Changsha Kodak intelligent equipment Limited by Share Ltd Address before: Huankeyuan auto road 410116 in Hunan province Changsha Yuhua District No. 6 Patentee before: Changsha KEDA Construction Machinery Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |