CN1028681C - Fully electric controlled high power executive device - Google Patents
Fully electric controlled high power executive device Download PDFInfo
- Publication number
- CN1028681C CN1028681C CN 89104460 CN89104460A CN1028681C CN 1028681 C CN1028681 C CN 1028681C CN 89104460 CN89104460 CN 89104460 CN 89104460 A CN89104460 A CN 89104460A CN 1028681 C CN1028681 C CN 1028681C
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- motor
- rare
- control
- earth permanent
- magnet motor
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Abstract
The present invention relates to a high-power executive device with full-electric control, which is composed of a coaxial decelerator, a rare-earth permanent-magnet motor and a controllable reversing distributor. The controllable reversing distributor controls the electric supply to the rare-earth permanent-magnet motor by the controllable reversing distributor, so that the motor can change the rotating speed, or reverse or adapt to various loads according to requirements. Because the rare-earth permanent-magnet motor has great starting torque, small rotary inertia and a greater output power with the rotating speed controlled by the frequency of an electric source, the present invention can be used as a control and executive element for various mechanical movements and can also be used as a high-efficient energy-saving power source under various changing working conditions, such as a sport power source of a manipulator, a power source of a pumping unit for oil fields.
Description
A kind of fully electric controlled high power executive device, it can be used for doing the control system executive component of various mechanical actions, as if the motion-promotion force source of mechanical arm, the operating means of the various rudder faces of aircraft, also can be used for doing the high-efficient energy-saving power source under the various variable working condition conditions, as if the power source of oil-field oil pumper etc.
Mostly present mechanical action control actuating component is to adopt hydraulic cylinder, its control structure complexity, and efficient is low, needs servicing units such as a cover hydraulic power unit and fuel tank, and volume is big, also need solve heat dissipation problem.The system that has adopts stepper motor as executive component.Though stepper motor control accuracy height, output power is very little, can not be used for the bigger occasion of requirement control moment.On the other hand, as the power source that uses under the variable working condition situation, also mostly is AC motor or conventional DC motor.Because AC motor does not fit into variable working condition, can only select the motor of rated power more than or equal to maximum peak power for use, can not adjust self working state with the variation of load, thereby system effectiveness is low, energy loss is big.Therefore the conventional DC motivation is because rotating speed changes with load, and it is to low-response of control, and control is not easy, and is not suitable in the little and big applications of variable power of velocity variations, as if work on the oil-field oil pumper.
The present invention seeks to invent the complete automatically controlled actuating unit that a kind of available very little power controlling just can be controlled, its efficient height, simple in structure, output power is big.
Structure principle chart of the present invention as shown in Figure 1, it has coaxial speed reducer (1) and motor (2), it is characterized in that: motor (2) is a rare-earth permanent magnet motor, one controlled commutation divider (3) is arranged between motor (2) and power supply, and the three constitutes common power input, is carried out the mechanical energy output unit of light current control by control end.
Among the present invention, adopt controlled commutation divider (3) that rare-earth permanent magnet motor is controlled.Because this conventional DC motor of detent torque of rare-earth permanent magnet motor is much bigger, moment of inertia is little, can the real time altering rotating speed and turn to, and the supply frequency that the rotating speed of rare-earth permanent magnet motor is produced by controlled commutation divider is directly controlled, can regulate on a large scale, substantially do not have this pass with load, therefore improved dynamic response performance of the present invention.Because the moment of inertia of rare-earth permanent magnet motor is little, can be operated under the high rotational speed, generally can in 7000-10000 rev/min scope, like this, after coaxial speed reducer (2) deceleration, can obtain bigger torque.In the present invention, the control end of controlled commutation divider (3) can be complementary with the standard interface of Industrial Control Computer, controls with Industrial Control Computer, realizes the control of start and stop, rotating and the different rotating speeds of topworks.Since be to be used as power with rare-earth permanent magnet motor, the efficient height, simple in structure, saved a whole set of hydraulic power unit etc., reduce maintenance workload, strengthen reliability.Simultaneously, since rare-earth permanent magnet motor than the output power of stepper motor many, even can reach the power of common electric machine, and therefore not only can be used for doing the control actuating component of various mechanical actions, also can be used for the high-efficient energy-saving power source under the various variable working condition conditions.It can keep rotating speed constant or when rule changes on request power significantly change, even can also when negative output power, absorb energy back telegram in reply source.
Coaxial speed reducer among the present invention (1) can be the planet gear type speed reduction unit, also can be harmonic gear reducer, and its reduction gear ratio can be in the 20-200 scope.Controlled commutation divider (3) can be that its number of patent application of employing is pressure regulation and the inversion system of CN89104234.2, and its control end is directly to mate with the standard control interface of Industrial Control Computer to be connected.Controlled commutation divider (3) be by the high-power electronic switch of control end control (by) order of control output pulse, pulse repetition rate through and the control of pulse width.Because computing machine can require the output different with the generation of current system state according to difference, makes this device that part intelligence be arranged, but also conversion program easily.
Rare-earth permanent magnet motor among the present invention can with iron boron rare earth forever material do rotor.Root diameter can be smaller relatively, to reduce moment of inertia.Rotor should make one all-in-one-piece, increasing the intensity of rotor, the inertial force that the opposing rotor is produced at high speed rotating or when becoming for speed fast.
Claims (2)
1, a kind of fully electric controlled high power executive device, it has coaxial speed reducer (1) and motor (2), it is characterized in that: motor (2) is a rare-earth permanent magnet motor, one may command is arranged to divider (3) between motor (2) and power supply, the three constitutes common power input, is carried out the mechanical energy output unit of light current control by control end.
2, fully electric controlled high power executive device as claimed in claim 1 is characterized in that: the control end of controlled commutation divider (3) and the control interface of industrial control computer are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104460 CN1028681C (en) | 1989-07-07 | 1989-07-07 | Fully electric controlled high power executive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89104460 CN1028681C (en) | 1989-07-07 | 1989-07-07 | Fully electric controlled high power executive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1048618A CN1048618A (en) | 1991-01-16 |
| CN1028681C true CN1028681C (en) | 1995-05-31 |
Family
ID=4855559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89104460 Expired - Fee Related CN1028681C (en) | 1989-07-07 | 1989-07-07 | Fully electric controlled high power executive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028681C (en) |
-
1989
- 1989-07-07 CN CN 89104460 patent/CN1028681C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1048618A (en) | 1991-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |