CN103775713A - Electronic control proportion hand shank circuit - Google Patents
Electronic control proportion hand shank circuit Download PDFInfo
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- CN103775713A CN103775713A CN201210400884.0A CN201210400884A CN103775713A CN 103775713 A CN103775713 A CN 103775713A CN 201210400884 A CN201210400884 A CN 201210400884A CN 103775713 A CN103775713 A CN 103775713A
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- connects
- pin
- potentiometer
- output port
- resistance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
Abstract
The invention relates to an electronic control proportion hand shank circuit. The electronic control proportion hand shank circuit is provided with three output ports, wherein the three output ports are respectively a gear output port C, an output port A and an output port B. The electronic control proportion hand shank circuit comprises a fuse wire, three resistors R1, R2 and R3, a micro switch and a potentiometer, wherein one end of the fuse wire is connected with a positive electrode of a power source, the other end of the fuse wire is connected with a common terminal COM of a micro switch, resistance value of the resistor R1 is larger than resistance value of the resistors R2 and R3, one end of the resistor R1 is connected with a normally open contact of the micro switch, the other end of the resistor R1 is connected with a foot 1 of the potentiometer and one end of the resistor R2, the other end of the resistor R2 is connected with one end of the resistor R3 and the output port B, the other end of the resistor R3 is connected with a negative electrode of the power source, the micro switch comprises the common terminal, a normally close contact and the normally open contact, the common terminal is connected with the fuse wire, the normally close contact is connected with the gear output port, the normally open contact is connected with one end of the resistor R1, the potentiometer is provided with three feet, a foot 1 of the potentiometer is connected with the other end of the resistor R1 and one end of the resistor R2, and a foot 2 of the potentiometer is connected with the output port A, and a foot 3 of the potentiometer is connected with the negative electrode of the power source.
Description
Technical field
The present invention relates to engineering machinery manipulation technology, particularly relate to a kind of automatically controlled ratio handle circuit.
Background technique
Engineering machinery mechanical proportional valve used on market, all control with single pole proportional control device and flexible axle, but not only the node of transmission is many, transmission efficiency is lower for this class driving mechanism, handle that strength is large and operating space is larger, and in use can produce idle stroke, therefore to utilize it to realize accurate control ratio more difficult.
Along with scientific and technological development, hydraulic pilot valve has been succeeded in developing and has generally been promoted beatting up U.S.A.In several years of future, hydraulic pilot valve will inevitably substitute traditional mechanical proportional valve, and the manipulation of this hydraulic pilot valve is no longer traditional single pole proportional control device and flexible axle, but a kind of automatically controlled ratio handle.But with regard to present circumstances, the most dependence of this automatically controlled ratio handle import, the one, price is higher, and the 2nd, the utilization ratio of this handle is not high, that is to say that the additional function of import handle is more, and the function applying to is little, simultaneously professional not strong.
As can be seen here, be badly in need of a kind of novel automatically controlled ratio handle and solve the problem of above-mentioned existence.
Summary of the invention
The object of the invention is to propose a kind of automatically controlled ratio handle circuit, can effectively improve the utilization ratio of automatically controlled ratio handle, and can reduce production costs.
The object of the invention is to realize by the following technical solutions.The automatically controlled ratio handle of the present invention circuit, it comprises safety fuse cutout, one end of this safety fuse cutout connects positive source, and the other end connects the common port COM of sensitive switch; Three resistance R 1, R2 and R3, the resistance of R1 is greater than R2 and R3, and its one end connects the normally opened contact of sensitive switch, and the other end connects the pin 1 of potentiometer and one end of R2, and the other end of R2 connects one end and the output port B of R3, and the other end of R3 connects power cathode; Sensitive switch, it comprises common port, normally-closed contact and normally opened contact, and this common port connects safety fuse cutout, and this normally-closed contact connects gear output terminal, and this normally opened contact connects one end of R1; And potentiometer, it has tripod, i.e. pin 1, pin 2 and pin 3, and the other end of pin 1 contact resistance R1 and one end of resistance R 2, pin 2 connects output port A, and pin 3 connects power cathode.
Object of the present invention can also realize by the following technical solutions.The automatically controlled ratio handle of the present invention circuit, it comprises safety fuse cutout, one end of this safety fuse cutout connects positive source, and the other end connects the common port COM of sensitive switch; Resistance R 1, its one end connects the normally opened contact of sensitive switch, the other end connect the pin 1 of the first potentiometer and the pin 1 of the second potentiometer '; Sensitive switch, it comprises common port, normally-closed contact and normally opened contact, and this common port connects safety fuse cutout, and this normally-closed contact connects gear output terminal, and this normally opened contact connects one end of R1; And two potentiometers, i.e. the first potentiometer and the second potentiometer, these two potentiometers all have tripod, the pin 1 of the pin 1 of the first potentiometer and the other end of resistance R 1 and the second potentiometer ' be connected, pin 2 connects output port A, and pin 3 connects power cathode, the pin 1 of the second potentiometer ' be connected with the other end of resistance R 1 and the pin 1 of the first potentiometer, pin 2 ' connection output port B, and pin 3 ' connection power cathode.
The present invention compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of automatically controlled ratio handle circuit of the present invention at least has following advantages and beneficial effect: a kind of automatically controlled ratio handle circuit of the present invention, it has three output ports and is respectively: gear output terminal C, output port A and output port B, in the time of handle initial position, handle does not make sensitive switch action, gear output terminal output supply voltage, output port A and output port B do not have voltage, in the time that handle leaves initial position, handle makes sensitive switch action, normally opened contact closure, normally-closed contact disconnects, therefore gear output terminal deenergization, handle is driving potentiometer rotation that potentiometer resistance is changed simultaneously, make output port A and output port B voltage change, thereby the size of current and the direction that flow through Proportional valve change.Thereby reduce the manufacture cost of automatically controlled ratio handle, and make it more professional.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to better understand technological means of the present invention, and can be implemented according to the content of specification, and for above and other object of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1 is the automatically controlled ratio handle of the present invention circuit the first embodiment's circuit diagram.
Fig. 2 is the automatically controlled ratio handle of the present invention circuit the second embodiment's circuit diagram.
Embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the embodiment of the automatically controlled ratio handle circuit proposing according to the present invention, be described in detail as follows.
As shown in Figure 1, be the automatically controlled ratio handle of the present invention circuit the first embodiment's circuit diagram, it comprises safety fuse cutout F, one end of this safety fuse cutout F connects positive source, and the other end connects the common port COM of sensitive switch K; Three resistance R 1, R2 and R3, the resistance of R1 is greater than R2 and R3, and its one end connects the normally opened contact K1 of sensitive switch K, and the other end connects the pin 1 of potentiometer RV and one end of R2, the other end of R2 connects one end and the output port B of R3, and the other end of R3 connects power cathode; Sensitive switch K, it comprises common port COM, normally opened contact K1 and normally-closed contact K2, and this common port COM connects safety fuse cutout F, and this normally-closed contact K2 connects gear output terminal C, and this normally opened contact K1 connects one end of R1; Potentiometer RV, it has tripod, i.e. pin 1, pin 2 and pin 3, the other end of pin 1 contact resistance R1 and one end of resistance R 2, pin 2 connects output port A, and pin 3 connects power cathode.
In the present embodiment, the resistance value of R1 is 51 Ω, and power is 25W, is the resistance of relatively high power; And the resistance value of R2 and R3 is all 31 Ω, power is 3W.Specifically, the resistance size of R1, R2 and R3 decides according to different product model, and the present invention does not limit its concrete model.
As shown in Figure 2, be the automatically controlled ratio handle of the present invention circuit the second embodiment's circuit diagram, it comprises safety fuse cutout F, one end of this safety fuse cutout F connects positive source, and the other end connects the common port COM of sensitive switch K; Resistance R 1, its one end connects the normally opened contact K1 of sensitive switch K, the other end connect the pin 1 of the first potentiometer RV1 and the pin 1 of the second potentiometer RV2 '; Sensitive switch K, it comprises common port COM, normally-closed contact K2 and normally opened contact K1, and this common port COM connects safety fuse cutout F, and this normally-closed contact K2 connects gear output terminal C, and this normally opened contact K1 connects one end of R1; And two potentiometers, i.e. the first potentiometer RV1 and the second potentiometer RV2, these two potentiometers all have tripod, the pin 1 of the pin 1 of the first potentiometer RV1 and the other end of resistance R 1 and the second potentiometer RV2 ' be connected, pin 2 connects output port A, and pin 3 connects power cathode, the pin 1 of the second potentiometer RV2 ' be connected with the other end of resistance R 1 and the pin 1 of the first potentiometer RV1, pin 2 ' connection output port B, and pin 3 ' connection power cathode.
In the present embodiment, the resistance value of R1 is 51 Ω, and power is 25W, is the resistance of relatively high power.Specifically, the resistance size of R1 decides according to different product model, and the present invention does not limit its concrete model.
Specifically, a kind of automatically controlled ratio handle circuit of the present invention, it has three output ports and is respectively: gear output terminal C, output port A, output port B.Gear output port C output high level in the time of handle initial position, output port A and the output of output port B no current; In the time that handle promotes forward, rotatable handle potentiometer makes output port A voltage be greater than output port B, and electric current flows into Proportional valve from output port A, then flows out to output port B from Proportional valve, and the angle of electric current and handle is directly proportional; In the time that handle promotes backward, handle counterrotating potentiometer makes output port A voltage be less than output port B, and electric current flows into Proportional valve from output port B, then flows out to output port A from Proportional valve, and the angle of electric current and handle is directly proportional.
The above, it is only preferred embodiment of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (2)
1. an automatically controlled ratio handle circuit, it has three output ports, and gear output terminal, output port A and output port B, is characterized in that, and it comprises:
Safety fuse cutout, one end of this safety fuse cutout connects positive source, and the other end connects the common port COM of sensitive switch;
Sensitive switch, it comprises common port, normally-closed contact and normally opened contact, and this common port connects safety fuse cutout, and this normally-closed contact connects gear output terminal, and this normally opened contact connects one end of R1;
Three resistance R 1, R2 and R3, the resistance of R1 is greater than R2 and R3, and its one end connects the normally opened contact of sensitive switch, and the other end connects the pin 1 of potentiometer and one end of R2, and the other end of R2 connects one end and the output port B of R3, and the other end of R3 connects power cathode; And
Potentiometer, it has tripod, i.e. pin 1, pin 2 and pin 3, the other end of pin 1 contact resistance R1 and one end of resistance R 2, pin 2 connects output port A, and pin 3 connects power cathode.
2. an automatically controlled ratio handle circuit, it has three output ports, and gear output terminal, output port A and output port B, is characterized in that, and it comprises:
Safety fuse cutout, one end of this safety fuse cutout connects positive source, and the other end connects the common port COM of sensitive switch;
Sensitive switch, it comprises common port, normally-closed contact and normally opened contact, and this common port connects safety fuse cutout, and this normally-closed contact connects gear output terminal, and this normally opened contact connects one end of R1;
Resistance R 1, its one end connects the normally opened contact of sensitive switch, the other end connect the pin 1 of the first potentiometer and the pin 1 of the second potentiometer '; And
Two potentiometers, i.e. the first potentiometer and the second potentiometer, these two potentiometers all have tripod, the pin 1 of the pin 1 of the first potentiometer and the other end of resistance R 1 and the second potentiometer ' be connected, pin 2 connects output port A, and pin 3 connects power cathode, the pin 1 of the second potentiometer ' be connected with the other end of resistance R 1 and the pin 1 of the first potentiometer, pin 2 ' connection output port B, and pin 3 ' connection power cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400884.0A CN103775713A (en) | 2012-10-19 | 2012-10-19 | Electronic control proportion hand shank circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210400884.0A CN103775713A (en) | 2012-10-19 | 2012-10-19 | Electronic control proportion hand shank circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103775713A true CN103775713A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210400884.0A Pending CN103775713A (en) | 2012-10-19 | 2012-10-19 | Electronic control proportion hand shank circuit |
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| CN (1) | CN103775713A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017887A (en) * | 2020-08-27 | 2020-12-01 | 乐清市通达有线电厂 | Micro-switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028572A (en) * | 1988-06-28 | 1990-01-12 | Matsushita Refrig Co Ltd | Damper open and close device |
| CN102506020A (en) * | 2011-09-29 | 2012-06-20 | 无锡市钻通工程机械有限公司 | Method for selecting electric control handles and designing parameters |
| CN202298732U (en) * | 2011-10-12 | 2012-07-04 | 徐震 | Electronic control handle for excavator |
| CN202884178U (en) * | 2012-10-19 | 2013-04-17 | 洛阳市黄河软轴控制器股份有限公司 | Electric proportion handle circuit |
-
2012
- 2012-10-19 CN CN201210400884.0A patent/CN103775713A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH028572A (en) * | 1988-06-28 | 1990-01-12 | Matsushita Refrig Co Ltd | Damper open and close device |
| CN102506020A (en) * | 2011-09-29 | 2012-06-20 | 无锡市钻通工程机械有限公司 | Method for selecting electric control handles and designing parameters |
| CN202298732U (en) * | 2011-10-12 | 2012-07-04 | 徐震 | Electronic control handle for excavator |
| CN202884178U (en) * | 2012-10-19 | 2013-04-17 | 洛阳市黄河软轴控制器股份有限公司 | Electric proportion handle circuit |
Non-Patent Citations (1)
| Title |
|---|
| 杨朋朋，刘雷: "某钻机电控手柄故障分析及相应软件的设计", 《地质装备》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017887A (en) * | 2020-08-27 | 2020-12-01 | 乐清市通达有线电厂 | Micro-switch |
| CN112017887B (en) * | 2020-08-27 | 2021-05-11 | 乐清市通达有线电厂 | Micro-switch |
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Application publication date: 20140507 |