CN1031809C - Digital-control full-electric operating extensible actuating cylinder - Google Patents
Digital-control full-electric operating extensible actuating cylinder Download PDFInfo
- Publication number
- CN1031809C CN1031809C CN 91108278 CN91108278A CN1031809C CN 1031809 C CN1031809 C CN 1031809C CN 91108278 CN91108278 CN 91108278 CN 91108278 A CN91108278 A CN 91108278A CN 1031809 C CN1031809 C CN 1031809C
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- electric machine
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Abstract
The present invention relates to a numerically controlled all-electric execution telescopic functional cylinder which is suitable for devices such as hoisting machines, mechanical arms, machine tools, etc. to replace a hydraulic oil cylinder. The functional cylinder is provided with a screw rod, nuts, a decelerator and an electric machine. The present invention is characterized in that the electric machine is a rare-earth permanent magnet electric machine and is provided with a fixed sleeve barrel and a telescopic sleeve barrel which are connected glidingly, and the electric machine, the decelerator, the screw rod and the nuts are respectively fixed in the two sleeve barrels; the electric machine is connected with a variable-frequency inversion power supply, a standard industrial control interface, a fitting module which is inserted into the standard industrial control interface, and a central control computer which is connected through a serial port. The numerically controlled all-electric execution telescopic functional cylinder adopts electromechanical integrated all-electric control execution, so the present invention has the advantages of higher control precision, larger output power and low cost.
Description
A kind of digital-control full-electric operating extensible actuating cylinder, it is applicable in the equipment such as Hoisting Machinery, mechanism hand, machine tool feed, is used to replace hydraulic jack, realizes move operation.
In hoist, mechanism hand and machine tool feed equipment, adopt hydraulic jack to realize the shift action operation now more.Because of using hydraulic jack to need a whole set of hydraulic power unit and electrohydraulic control dispatch control system, structure is huge, complicated, adds the leakage problems of hydraulic oil, makes that the application of hydraulic operation system is not really desirable.Simultaneously, because the seepage of hydraulic oil, the displacement accuracy of hydraulic jack is not very high, and bigger drift is arranged.In some highi degree of accuracy action systems, as the feeding system of precision machine tool, adopt stepper motor to add the form of nut screw, also realized full electricity execution shift action.But, because the output power of stepper motor is less, and efficient is very low, make it to be used for the place of the big implementation capacity of requirement on the one hand.On the other hand, the pulse power supply complex structure of stepper motor, the cost costliness also makes its application be restricted.
The objective of the invention is to invent a kind of digital-control full-electric operating extensible actuating cylinder of electromechanical integration, can use numeral to control, do-part is made of one to replace hydraulic jack, and is simple in structure, and bigger output power is arranged, with low cost.
The present invention as shown in Figure 1, it has leading screw 1, nut 2, retarder 3, motor 4, it is characterized in that: motor 4 is rare-earth permanent magnet rotor motors, fixed muffle 5 is arranged, end in the fixed muffle 5 is fixed with motor 4 and retarder 3, extension sleeve 6 is arranged in its other end, fixed muffle 5 uses with extension sleeve 6 and is slidingly connected, nut 2 is fixed in extension sleeve 6 inside and leading screw 1 engagement that is connected in retarder 3, the input end of motor 4 is connected to adjustable frequency inverter power 7, standard industrial control 8 is arranged, in standard industrial control 8, be inserted with and be connected in adjustable frequency inverter power 7 and its adaptation module of controlling 9, standard industrial control 8 by the standard serial communication interface with can link to each other with the common central control computer 10 of miscellaneous equipment.
The present invention is fixed in the place that needs to produce relative displacement to the fixed muffle 5 and the two ends of extension sleeve 6 in use, replaces the hydraulic jack position.When requiring two ends apart from change, central control computer 10 sends address gating signal, passes in the standard industrial control 8 by the standard serial communication interface, by the adaptation module 9 of standard industrial control 8 gating adjustable frequency inverter power 7.Central control computer 10 as requested or the software setting calculate requirement travelling speed the frequency values of corresponding motor rotation speed value and required power supply, send controlled frequency numerical value by standard serial port and give adaptation module 9, latch and control the output of frequency-adjustable power supply 7 by adaptation module 9.When adaptation module 9 latched, central control computer 10 integration that picks up counting can obtain the shift value of any time.When requiring motion of the present invention to satisfy some displacements----time relationship (or Velocity-time relation, acceleration-time relationship), can calculate corresponding frequency of supply-time graph by the controlled time graph that requires by central control computer 10, after discrete, constantly send the frequency of supply value of current time with the method for time interruption, receive and control break constantly by adaptation module 9, make motion of the present invention satisfy controlled requirement.
Among the present invention, motor 4 adopts the rare-earth permanent magnet rotor motor, by adjustable frequency inverter power 7 power supplies.Because rare-earth permanent-magnet electric machine is a kind of synchronous motor, its rotating speed is consistent with the frequency of input power supply, can regulate rotating speed of motor by the frequency of regulating the input power supply on the one hand, on the other hand, by integration to power supply frequency, also just can obtain the revolution of motor, reach the purpose of positioning control.Because rareearth magnetic material has higher magnetic energy product value, the volume of motor can be less, and power is bigger, particularly the starting torque of rare-earth permanent magnet rotor motor is very big, when speed change, particularly during low speed, be difficult for " throwing switch " phenomenon takes place, higher open loop control accuracy is arranged.
The present invention uses central control computer and standard industrial control to add the electromechanical integrated structure of this standard of actuator, adopt the incoming frequency of control rare-earth permanent magnet rotor motor to control its output speed and revolution, and directly drive feed screw nut and pay by the retarder back of slowing down, it is mobile that rotation is become, do not need hydraulic power system, reached the purpose that full electricity is carried out, simple in structure, with low cost.Because the rare-earth permanent magnet rotor motor has bigger output power and bigger starting torque, thereby output power of the present invention is bigger, structure is little, can adapt to the place of the big implementation capacity of requirement, replaces hydraulic jack.
The fixed muffle 5 among the present invention and the effect one of extension sleeve 6 are to make motor 4, retarder 3, nut 2 and leading screw 1 fuse and shield, the 2nd, and for increasing the pressurized stability of leading screw 1.Thereby fixed muffle 5 and extension sleeve 6 all should have certain intensity and rigidity.
Retarder 3 among the present invention can use multistage common retarder, also can use harmonic gear reducer, can also use as " a kind of high-ratio differential speed reducer " of number of patent application as CN91103847, and very high reduction speed ratio and very little volume are arranged.In the present invention, retarder 3 and motor 4 can also be made of one, and are the structure of CN91216028 " a kind of differential reducing electric winch " as number of patent application, and the output of its reel output becoming leading screw is got final product.
In the present invention, standard industrial control 8 can be selected the I/O K32 of U.S. ME company (MECHATRONIC EQUIPMENT INC.) for use, or the PB16AH of U.S. OPTO22 company.The adaptation module 9 that inserts in the standard industrial control 8 can be the DA3 module of U.S. OPTO22 company.Central control computer 10 can beauty competition state ME company PCS-1 industrial process Control work station, also can select the LC4 controller of U.S. OPTO22 company for use.Adjustable frequency inverter power 9 among the present invention can be selected the G5 or the G7 series inverter of Japanese fuji company for use, and also can adopt as the patent No. is the structure of CN89209067 " a kind of high-power numerical control pressure regulation and converter plant ".
Claims (1)
1. digital-control full-electric operating extensible actuating cylinder, it has leading screw 1, nut 2, retarder 3, motor 4, it is characterized in that: motor 4 is rare-earth permanent magnet rotor motors, fixed muffle 5 is arranged, end in the fixed muffle 5 is fixed with motor 4 and retarder 3, extension sleeve 6 is arranged in its other end, fixed muffle 5 uses with extension sleeve 6 and is slidingly connected, nut 2 is fixed in extension sleeve 6 inside and leading screw 1 engagement that is connected in retarder 3, the input end of motor 4 is connected to adjustable frequency inverter power 7, standard industrial control 8 is arranged, in standard industrial control 8, be inserted with and be connected in adjustable frequency inverter power 7 and its adaptation module of controlling 9, standard industrial control 8 by the standard serial communication interface with can link to each other with the common central control computer 10 of miscellaneous equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108278 CN1031809C (en) | 1991-12-20 | 1991-12-20 | Digital-control full-electric operating extensible actuating cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91108278 CN1031809C (en) | 1991-12-20 | 1991-12-20 | Digital-control full-electric operating extensible actuating cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1073753A CN1073753A (en) | 1993-06-30 |
| CN1031809C true CN1031809C (en) | 1996-05-15 |
Family
ID=4909191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91108278 Expired - Fee Related CN1031809C (en) | 1991-12-20 | 1991-12-20 | Digital-control full-electric operating extensible actuating cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031809C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101284629B (en) * | 2008-06-10 | 2010-06-09 | 齐齐哈尔轨道交通装备有限责任公司 | Overhead crane |
| CN106391899A (en) * | 2016-12-12 | 2017-02-15 | 南陵宝恒野生葛种植专业合作社 | Mechanical clamping arm for automatic stamping line |
-
1991
- 1991-12-20 CN CN 91108278 patent/CN1031809C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1073753A (en) | 1993-06-30 |
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| 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 |