CN2103691U - Autocontroller for electro-hydraulic speed-regulating clutch - Google Patents
Autocontroller for electro-hydraulic speed-regulating clutch Download PDFInfo
- Publication number
- CN2103691U CN2103691U CN 91226229 CN91226229U CN2103691U CN 2103691 U CN2103691 U CN 2103691U CN 91226229 CN91226229 CN 91226229 CN 91226229 U CN91226229 U CN 91226229U CN 2103691 U CN2103691 U CN 2103691U
- Authority
- CN
- China
- Prior art keywords
- transmitter
- clutch
- speed
- electro
- pressure
- 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.)
- Granted
Links
Images
Abstract
The utility model relates to an automatic control device for an electro-hydraulic speed-regulating clutch. Comprising an electronic controller, an electro-hydraulic proportional valve, a rotation speed signal gear wheel and a rotation speed transmitter, the utility model is also provided with a pressure transmitter, or a flow transmitter, or a temperature transmitter or a liquid level transmitter, and an alarm device. The utility model carries out processing the output signals of each transmitter by the electronic controller, which is executed by the electro-hydraulic proportional valve, and consequently each controlled parameter obtains control and regulation. The automatic control device can realize two-parameter control, and has the alarm function of automatically monitoring, enlarging the applied range of the clutch, and the use of users is also very convenient.
Description
The utility model relates to a kind of automatic controller of stepless speed regulation clutch.
Variable-speed clutch is a kind of novel stepless speed-regulating device that gets up according to liquid viscosity transmission theoretical developments.Because this clutch start is steady, easy to operate, reliable, cheap, is best suited for the regulation and control that resemble blower fan, this class power of pump and the proportional work mechanism of rotating speed cube and energy-conservation, thereby quite is welcomed by many users.The automatic controller of existing variable-speed clutch, generally can be divided into three kinds of machine liquid rotating speed control type and electric liquid rotating speed control types, the former is as Chinese patent application (application number 86100396, application number 86104095), mainly be to utilize centrifugal governor mechanism that the output shaft rotating speed is converted to centrifugal force to go to regulate and the impacting force of control oil channel systemic effect to the oil cylinder piston, to change the combination degree of master and slave friction plate, reach the purpose of speed governing and speed stabilizing.The latter such as Chinese patent application (application number 86104607) are to fix a tach signal gear on output shaft, utilize this gear and speed probe and rotating speed transmitter rotating speed to be converted to the dc signal that is directly proportional with it, deliver to electronic controller, then through relatively amplifying, be used to control electro-hydraulic proportional valve or electrohydraulic control or servomotor and go to control and regulate the impacting force of control oil channel systemic effect to the oil cylinder piston, reach the purpose of speed governing and speed stabilizing with the combination degree that changes master and slave friction plate.
The control gear of above-mentioned variable-speed clutch all is the rotating speed that utilizes output shaft as Control Parameter, and this is appropriate to some machinery as winch, generator etc.But concerning blower fan, this class major control object of pump, not the most appropriate just.Because their optimization control parameter is not rotating speed but pressure, flow, temperature or liquid level.Because the Control Parameter of existing variable-speed clutch automatic controller only limits to rotating speed, this just makes the application area of variable-speed clutch be restricted.And what the electronic controller of existing variable-speed clutch adopted is amplifier rather than regulator, therefore regulates and control the also difficult needs that satisfy various different users of performance.In addition, automatic controller does not have monitoring alarm, and difficult in time the discovery handled when lubrication pressure and fuel tank temperature anomaly, also makes to apply to be affected.
The purpose of this utility model is to overcome the deficiency on the above-mentioned prior art, a kind of improvement of automatic controller is provided, and it should be able to be according to user's needs, control and regulate different Control Parameter, and can monitor the working condition of clutch, to enlarge the application area of variable-speed clutch.
The utility model provides following technological scheme:
This automatic controller comprises gathers pressure transmitter or flow transmitter or temperature transmitter or the fluid level transmitter that controlled parameter signal is used, and comprises electronic controller, electro-hydraulic proportional valve.The signal output part of each transmitter inserts the input end of the electronic controller that is used to control electro-hydraulic proportional valve, its signal is delivered to electro-hydraulic proportional valve after comparing, handle, amplifying, by the pressure of electro-hydraulic proportional valve control and adjusting connection variable-speed clutch oil cylinder and piston oil-way system, reach adjusting and stable by the purpose of governor pressure, flow, temperature and liquid level.
Further specify below in conjunction with embodiment shown in the drawings.
Fig. 1 is the structural representation and the automatic controller schematic diagram thereof of variable-speed clutch.
Fig. 2 is the annexation schematic representation of each parts of electronic controller in the automatic controller.
Fig. 3 is a kind of circuit theory diagrams of regulator.
Fig. 4 is the another kind of circuit theory diagrams of regulator.
As shown in Figure 1, this automatic controller has only a controlled parameter, or by governor pressure or controlled flow or by controlling temperature or controlled liquid level, and controlled pressure transmitter 19 and controlled flow transmitter 20 are contained in the outlet end of pump 27 usually.Controlled temperature transmitter 21 and controlled fluid level transmitter 26 generally are contained in the groove 25 (H is a liquid level).According to user's technological process needs,, select one of its above-mentioned transmitter for use by optimal parameter control principle.Behind pump work, converting the dc signal that is directly proportional with its value to, and this signal delivered to regulator 30 in the electronic controller 17 by governor pressure or controlled flow or by one of controlling temperature or controlled liquid level by selected transmitter.This electronic controller as shown in Figure 2, it is by given link 29, regulator 30, power amplifier 31, warning device 32, display unit 35 and compositions such as 36, and control signal is carried out algebraic operation through regulator, ratio, integration, differential synthesis are delivered to electro-hydraulic proportional valve 14 after the power amplification.Electro-hydraulic proportional valve is by control and regulate the pressure that is communicated with clutch oil cylinder and piston oil-way system, change the combination degree between the master and slave friction plate 15,16 of clutch, to change the rotating speed of output shaft 18, also be the rotating speed of pump, reach adjusting and stable by the purpose of governor pressure, flow, temperature, liquid level.
In order to enlarge the application area of this control gear, also can set up speed-adjusting and control system, its controlled parameter is the rotating speed of output shaft 18, its signal is from the tach signal gear 23 that is loaded on the variable-speed clutch output shaft 18, the speed probe 22 on the clutch housing and be loaded on rotating speed transmitter 34 in the electronic controller 17.When clutch output shaft rotates, produce the dc signal be directly proportional with rotating speed, and this signal is delivered to regulator 30 in the electronic controller 17 through switch S.Control signal is carried out algebraic manipulation through regulator, ratio, integration, differential synthesis, deliver to electro-hydraulic proportional valve 14 after the power amplification, electro-hydraulic proportional valve is by control and regulate the pressure that is communicated with clutch oil cylinder and piston oil-way system, change combination degree between the master and slave friction plate 15,16 of clutch to change the rotating speed of output shaft 18, also be the rotating speed of pump, reach the purpose of regulating and stablizing controlled rotating speed.
As shown in Figure 2, regulator 30 receives the signal of sending here from one of pressure, flow, temperature, fluid level transmitter 19,20,21,26 and rotating speed transmitter 34 by switch S, process contrasts with the signal that given link 29 is sent into, algebraic operation, and ratio, integration, differential synthesis, deliver to electro-hydraulic proportional valve 14 after the power amplification, go to carry out control and adjusting task by this valve.Meanwhile, each transmitter also connects display unit 35, the control electric current of each Control Parameter and electro-hydraulic proportional valve can be shown at any time.
Said display unit can be pointer-type or digital display device, and these all can directly be buied from the market.Given link generally adopts the adjustable potentiometer bleeder circuit, regulator then is the active correction circuit of being made up of operational amplifier and RC network generally, Fig. 3 and shown in Figure 4 be wherein two kinds of ratios, integration, differential regulator circuit, regulate the needs that its parameter can satisfy various different users.These are typical circuit, can oneself make, and also available standards unit (outsourcing piece) combines by modular system.
In addition, said regulator can adopt one or several.If with one, then constitute single close-loop automatic adjustment system, as shown in Figure 1 and Figure 2; If use two or more, then constitute two closed loops or many close-loop automatic adjustment system.
In the variable-speed clutch shown in Figure 1, speed-regulating part is a driving shaft (input shaft) 1, active friction plate 15, and from movable friction plate 16, driven shaft (output shaft) 18.Master and slave friction plate can rotate relatively, also can move vertically.The speed regulating control parts are oil cylinder and piston 12, return spring 28.Piston can be followed master and slave friction plate rotation, also can move vertically.The control oil channel system is control oil pump 3, safety valve 6, oil purifier 7, two-position three way magnetic valve 10, Twoway valves 11 etc.Its effect is to provide the oil pressure that needs for oil cylinder and piston.Twoway valves 11 is established (when the automatic controller fault, available Twoway valves excises electro-hydraulic proportional valve, makes variable-speed clutch be in synchronous operation) for excising electro-hydraulic proportional valve.Lubricant passage way system comprises lubricant pump 2, cooler 4, oil purifier 5, safety valve 9 etc.Its effect is lubricated and each rotation component of cooling variable-speed clutch.Said structure is all basic identical with existing variable-speed clutch.
By Fig. 1, Fig. 2 also as can be known, this automatic controller also is provided with oil cylinder working-pressure transmitter 13, lubrication pressure transmitter 8, fuel tank temperature transmitter 24, and display unit 36 and warning device 32.Make oil cylinder working-pressure, lubrication pressure, the fuel tank temperature of variable-speed clutch all can show.When lubrication pressure is low excessively, when the fuel tank temperature is crossed high abnormal conditions and occurred, can carry out sound by warning device 32, light is reported to the police, and also can send reduction of speed or halt instruction.In addition, this automatic controller also is equipped with two-position three way magnetic valve controller 33, is used to control two-position three way magnetic valve 10, with the big inertia work mechanism of unloaded quick starting.Above-mentioned said all kinds of transmitters (pressure, flow, temperature, liquid level) and alarm all can adopt existing product, directly buy from market.
Control mode of the present utility model can be divided into constant, principle and process when tracking and program control constant control are: if controlled parameter is a pressure, then delivered to regulator 30 behind the dc signal that governor pressure converts to its value is directly proportional by 19 of pressure transmitters.The given signal that this dc signal is sent here as reverse feedback and given link 29 carries out algebraic operation, ratio, integration, differential synthesis, after amplifying, power amplifier 31 delivers to electro-hydraulic proportional valve 14, with control with regulate oil-way system and affact pressure on the oil cylinder piston, change the combination degree between the master and slave friction plate 15,16, making the rotating speed of driven shaft 18, also is that the rotating speed of pump obtains changing, and reaches adjusting and stable by the purpose of governor pressure.The size that is just depended on given signal by governor pressure, when given signal is zero, the control electric current of electro-hydraulic proportional valve also is zero, the oil of control oil channel system is almost all fallen by the electro-hydraulic proportional valve overflow, so the pressure of control oil channel is minimum, return spring 28 is piston 12 pushed home, the gap maximum between the master and slave friction plate, the rotating speed of driven shaft and pump is minimum, and controlled force value is also minimum.When given signal increases, along with the increase of electro-hydraulic proportional valve control electric current, the oil mass that control oil channel is fallen by the electro-hydraulic proportional valve overflow also just reduces, and the control oil pressure also promptly increases, the rotating speed of driven shaft and pump also increases thereupon, also increased by governor pressure thereupon, when regulating system reaches balance, by governor pressure with regard to stable operation at a certain setting value, after the control oil pressure reaches a certain value, master and slave drive part is combined as a whole, and at this moment the rotating speed of driven shaft and pump is the highest, also is peak by governor pressure.If when making controlled variation in pressure because of certain factor affecting, for example, reduce because of flow adds the controlled pressure of ambassador, the dc signal of controlled pressure transmitter output also reduces thereupon, thereby the difference of given signal and controlled pressure feedback signal is strengthened, regulator is made rapid response, the control electric current of power amplifier output strengthens, and the control oil pressure raises, and the rotating speed of driven shaft and pump raises, flow strengthens, and makes by governor pressure and gets back to original setting value rapidly.If raise because of flow reduces to make by governor pressure, stabilization process is identical, just changes in the opposite direction.As long as variable-speed clutch operates within the speed adjustable range, no matter the influence of which kind of factor, automatic controller can both guarantee that controlled pressure stability is operated in setting pressure.If controlled is flow, temperature, liquid level, also right.
If controlled parameter is a rotating speed, perhaps, when being damaged by the transmitter of governor pressure, flow, temperature, liquid level, can change rotating speed over to by switch S at once and control automatically, at this moment, then by tach signal gear 23, speed probe 22, rotating speed converted to deliver to rotating speed transmitter 34 behind sine wave that frequency is directly proportional with rotating speed or the electrical pulsing signal and convert the dc signal that is directly proportional with rotating speed to and deliver to regulator 30,, reach and regulate and the purpose of stabilized (steady-state) speed through the working procedure identical with pressure control.Rotating speed just depends on the size of given signal, and regulating method is also identical with pressure control.When a certain cause influence rotation speed change, regulate also identical with pressure control with stabilization process.
Because the utility model possesses two-parameter adjusting function, thereby make variable-speed clutch can be widely used in the regulation and control of blower fan and pump and other field and energy-conservation.China has more than 2,000 ten thousand of blower fan and pumps at present, if wherein 1/4th apply, its social benefit and economic benefit also are very huge.In addition, owing to also have the function of automatic monitoring and warning, the user uses and feels very convenient.
Claims (5)
1, a kind of electrohydaulic speed governor automatic control device of clutch, comprise and be used to control and communicate with oil cylinder and the piston electro-hydraulic proportional valve 14 of oil-way system pressure of adjusting, be used to control the electronic controller 17 of electro-hydraulic proportional valve, it is characterized in that this automatic controller also is provided with pressure transmitter 19 or flow transmitter 20 or temperature transmitter 21 or fluid level transmitter 26 that the controlled parameter signal of collection is used, the signal output part of all transmitters all inserts the input end of electronic controller.
2, by the said electrohydaulic speed governor automatic control device of clutch of claim 1, it is characterized in that this device also comprises the tach signal gear 33 that is installed on variable-speed clutch output axle head, be installed on the speed probe 22 on the clutch housing, rotating speed transmitter 34, the signal output part of this rotating speed transmitter and electronic controller input end join.
3, by claim 1 or 2 said electrohydaulic speed governor automatic control device of clutch, it is characterized in that said electronic controller comprises given link 29, regulator 30, and power amplifier 31.
4,, it is characterized in that this device also comprises oil cylinder working-pressure transmitter 13, lubrication pressure transmitter 8 and fuel tank temperature transmitter 24 that the collection monitor signal is used by the said electrohydaulic speed governor automatic control device of clutch of claim 3.
5, by the said electrohydaulic speed governor automatic control device of clutch of claim 4, it is characterized in that this device also comprises monitoring display unit 35,36, and warning device 32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91226229 CN2103691U (en) | 1991-09-25 | 1991-09-25 | Autocontroller for electro-hydraulic speed-regulating clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91226229 CN2103691U (en) | 1991-09-25 | 1991-09-25 | Autocontroller for electro-hydraulic speed-regulating clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2103691U true CN2103691U (en) | 1992-05-06 |
Family
ID=4932351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91226229 Granted CN2103691U (en) | 1991-09-25 | 1991-09-25 | Autocontroller for electro-hydraulic speed-regulating clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2103691U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339602C (en) * | 2004-12-15 | 2007-09-26 | 中国船舶重工集团公司第七一一研究所 | Speed regulating clutch control system with pilot type servo valve |
| CN101782132A (en) * | 2010-03-09 | 2010-07-21 | 泰州科美达汽车科技发展有限公司 | Two-stage automatic gear shift transmission device |
| CN111271390A (en) * | 2020-01-17 | 2020-06-12 | 荣成华东锻压机床股份有限公司 | Automatic measurement and control device for clutch lubrication of mechanical press |
-
1991
- 1991-09-25 CN CN 91226229 patent/CN2103691U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339602C (en) * | 2004-12-15 | 2007-09-26 | 中国船舶重工集团公司第七一一研究所 | Speed regulating clutch control system with pilot type servo valve |
| CN101782132A (en) * | 2010-03-09 | 2010-07-21 | 泰州科美达汽车科技发展有限公司 | Two-stage automatic gear shift transmission device |
| CN111271390A (en) * | 2020-01-17 | 2020-06-12 | 荣成华东锻压机床股份有限公司 | Automatic measurement and control device for clutch lubrication of mechanical press |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103670750B (en) | Power limit matching control system, method, device and engineering machinery | |
| CN101871477B (en) | Intermediate-pressure control two-position variable axial plunger hydraulic motor | |
| CN102537328B (en) | Utilize the system and method for Hydraulic fluid lubricates variator components | |
| JPS61502114A (en) | Hydrostatic vehicle control device | |
| JPH07208343A (en) | Liquid-operated power controller | |
| CN1959067A (en) | Speed adjustment control system of steam turbine | |
| CN2187705Y (en) | Liquid viscosity speed-regulating clutch | |
| GB2452287A (en) | Improvements in Compressors Control | |
| CN201671983U (en) | Energy-saving high-precision automatic frequency modulation back-pressure type hydroviscous variable speed clutch | |
| CN204804926U (en) | Heat dissipation control system and excavator | |
| CN201292954Y (en) | Water pump and/or blower fan highly effective energy-conserving control system | |
| CN104149779B (en) | Vehicle power matching system with hydraulic mechanical stepless gearbox | |
| CN101561021B (en) | Applications-oriented control device of speed-regulating clutch and control method thereof | |
| CN102878152B (en) | Power control method and device of hydraulic system, and the hydraulic system | |
| CN2103691U (en) | Autocontroller for electro-hydraulic speed-regulating clutch | |
| US4851723A (en) | Coolant pump system for variable speed generators | |
| CN102235361A (en) | Method and device for constant pressure control of screw air compressor | |
| CN201027714Y (en) | Hydraulic equipment controlled by servo motor | |
| CA2463662A1 (en) | Method for optimizing the operation of a plurality of compressor assemblies of a natural-gas compression station | |
| CN2378619Y (en) | Constant-pressure variable thin oil lubricating apparatus | |
| CN105221278A (en) | Based on the rotary drilling rig control system of global power coupling | |
| CN110905672B (en) | Real-time power matching method of hydraulic system adapting to different rotating speeds of engine | |
| CN2673954Y (en) | Limiting load adjusting device for full hydraulic bulldozer | |
| CN2186329Y (en) | Mechanical-hydraulic mixed speed regulating device | |
| CN2735051Y (en) | Liquid viscosity variable speed clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |