CN211573770U - Oil-free screw host driven by double motors - Google Patents
Oil-free screw host driven by double motors Download PDFInfo
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- CN211573770U CN211573770U CN201922394517.4U CN201922394517U CN211573770U CN 211573770 U CN211573770 U CN 211573770U CN 201922394517 U CN201922394517 U CN 201922394517U CN 211573770 U CN211573770 U CN 211573770U
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Abstract
The utility model relates to a bi-motor driven does not have oily screw rod host computer, including cloudy rotor (1), the positive rotor (2) that are located the compression chamber, its characterized in that: the female rotor (1) is driven by a first motor (3), and a motor shaft of the first motor (3) is integrally formed with the female rotor (1), the male rotor (2) is driven by a second motor (4), and a motor shaft of the second motor (4) is integrally formed with the male rotor (2); the first motor (3) and the second motor (4) are connected with a control system (5) in an electric signal mode, and the control system (5) controls the synchronous operation of the female rotor (1) and the male rotor (2); the utility model has the advantages that: the motor and the rotor are integrally designed, and the motor has the advantages of simple structure and high transmission efficiency.
Description
Technical Field
The utility model belongs to the technical field of do not have oily screw rod host computer, especially, relate to a bi-motor drive does not have oily screw rod host computer.
Background
The oil-free screw air compressor is a more machine type commonly used in the market of the air compressor at present, and the screw air compressor comprises a double screw and a single screw; the air compressor machine of twin-screw that generally uses in the existing market, the twin-screw is more reasonable, stable in the design. As a main machine compression cavity of the oilless screw air compressor is not lubricated and cooled, a male rotor and a female rotor cannot be in direct contact with each other, and the transmission between the male rotor and the female rotor of the conventional oilless screw main machine is realized by a synchronous gear 6 as shown in the attached drawing 1; because the synchronous gear 6 needs to be cooled by lubricating oil, the design of the oil circuit of the main engine is relatively complex; meanwhile, in order to ensure the clearance between the rotors, the requirements on the processing and assembling processes of the synchronous gear 6 are higher, and the energy loss of the gear transmission is about 1 percent; and the male rotor and the female rotor are respectively connected with a driving shaft of the motor through a coupling 7, so that certain loss is generated in the transmission process and the transmission rotating speed difference.
Disclosure of Invention
An object of the utility model is to overcome the not enough of prior art existence, and provide a bi-motor drive's oily screw rod host computer to simple structure gets off at the discontiguous condition of negative and positive rotor and realizes the synchronous operation, and reduces the assembly process requirement that does not have oily screw rod.
The purpose of the utility model is accomplished through the following technical scheme, this kind of two motor drive's oily screw rod host computer of no oil includes female rotor, the male rotor that is located the compression chamber, female rotor is driven by first motor, and the motor shaft of first motor with female rotor integrated into one piece, male rotor is driven by the second motor, and the motor shaft of second motor with male rotor integrated into one piece; the first motor and the second motor are connected with a control system in an electric signal mode, and the control system controls the synchronous operation of the female rotor and the male rotor.
Preferably, the first motor is disposed at one side of the female rotor, the second motor is disposed at one side of the male rotor, and the first motor and the second motor are distributed at the same side.
Preferably, the first motor is disposed at one side of the female rotor, the second motor is disposed at one side of the male rotor, and the first motor and the second motor are distributed in a corresponding manner.
Preferably, the rotor shafts of the female rotor and the male rotor and the motor shaft of the motor are integrally cast and molded coaxially.
Preferably, the control system comprises a driver and a controller, the driver is divided into a first driver and a second driver, the first driver is connected with the first motor in an electric signal mode, and the second driver is connected with the second motor in an electric signal mode; the first driver and the second driver are respectively connected with the controller in an electric signal mode.
Preferably, the first driver and the second driver are both servo drivers.
Preferably, the first motor and the second motor are both servo motors.
The utility model has the advantages that: 1. the motor and the rotor are integrally designed, the existing coupling connection is omitted, and the motor has the advantages of simple structure and high transmission efficiency; 2. the motor passes through the driver and is controlled by the controller to synchronously operate, the existing synchronous gear operating state is cancelled, the gear transmission loss can be reduced, and the assembly process of the oil-free screw rod host is simpler and more convenient; 3. the servo motor, the servo driver and the servo controller are adopted, so that the gap between the rotors can be detected, the manual detection error is reduced, and the synchronous operation is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a conventional oil-free screw main unit.
Fig. 2 is a schematic structural diagram of the oil-free screw host of the present invention.
Fig. 3 is a schematic structural diagram of the oil-free screw host of the present invention.
The reference numbers in the drawings are respectively: 1. a female rotor; 2. a male rotor; 3. a first motor; 4. a second motor; 5. a control system; 6. a synchronizing gear; 7. a coupling; 8. a rotor shaft; 9. a motor shaft; 5-1, a first driver; 5-2, a second driver; 5-3, and a controller.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings: the utility model comprises a female rotor 1 and a male rotor 2 which are positioned in a compression cavity, wherein the female rotor 1 is driven by a first motor 3, a motor shaft of the first motor 3 and the female rotor 1 are integrally formed, the male rotor 2 is driven by a second motor 4, and a motor shaft of the second motor 4 and the male rotor 2 are integrally formed; the rotor shafts 8 of the female rotor 1 and the male rotor 2 and the motor shaft 9 of the motor are integrally cast and molded by coaxial cores, namely the rotor shaft 8 of the female rotor 1 is coaxial with the motor shaft 9 of the first motor, and the rotor shaft 8 of the male rotor 2 is coaxial with the motor shaft 9 of the second motor 4; the advantages are that: with motor and rotor integrated design, cancelled the current coupling joint that passes through, have simple structure, advantage that transmission efficiency is high, simultaneously, can cancel synchronous gear for oil-free screw rod host assembly process is more simplistic.
As shown in fig. 2, the first motor 3 is disposed at one side of the female rotor 1, the second motor 4 is disposed at one side of the male rotor 2, and the first motor 3 and the second motor 4 are distributed at the same side; therefore, the structure of the whole oil-free screw main machine is more compact, and the assembly is more convenient.
As shown in fig. 3, the first motor 3 is disposed at one side of the female rotor 1, the second motor 4 is disposed at one side of the male rotor 2, and the first motor 3 and the second motor 4 are distributed correspondingly; the assembly of the male rotor and the female rotor in the oil-free screw rod main machine is more diversified, so that different space requirements are met.
First motor 3, second motor 4 are connected with control system 5 through the mode of electric signal to by control system 5 control female rotor 1, the synchronous operation of male rotor 2, specific: the control system 5 comprises a driver and a controller 5-3, the driver is divided into a first driver 5-1 and a second driver 5-2, the first driver 5-1 is connected with the first motor 3 in an electric signal mode, and the second driver 5-2 is connected with the second motor 4 in an electric signal mode; the first driver 5-1 and the second driver 5-2 are respectively connected with the controller 5-3 in an electric signal mode; the advantages are that: the motor passes through the driver and is controlled its synchronous operation by the controller, has cancelled and has now passed through synchronous gear running state, can reduce gear drive loss to make oil-free screw rod host assembly process more simple and convenient.
The first driver 5-1 and the second driver 5-2 are both servo drivers; the first motor 3 and the second motor 4 are both servo motors; the controller 5-3 is a servo controller or a PLC controller; the servo motor, the servo driver and the servo controller are adopted, so that the gap between the rotors can be detected, the manual detection error is reduced, and the synchronous operation is ensured.
The utility model discloses a second motor 4 on the male rotor 2 is controlled by second driver 5-2 to finally by controller 5-3 control speed, male rotor 2's rotational speed operation is followed to first motor 3 on the cloudy rotor 1, and cloudy rotor 1 is for the synchronous phase angle of male rotor 2 obtains through the phase angle that the segmentation between the current rotor was predetermine to second motor 4 on the male rotor 2 through controller 5-3, in order to guarantee the absolute synchronous operation of two rotors, can not scrape each other.
The present invention is not limited to the above embodiments, and any change is made on the shape or material composition, and all the structural designs provided by the present invention are all the deformation of the present invention, which should be considered within the protection scope of the present invention.
Claims (7)
1. The utility model provides a two motor drive's oily screw rod host computer, is including being located negative rotor (1), positive rotor (2) of compression intracavity, its characterized in that: the female rotor (1) is driven by a first motor (3), and a motor shaft of the first motor (3) is integrally formed with the female rotor (1), the male rotor (2) is driven by a second motor (4), and a motor shaft of the second motor (4) is integrally formed with the male rotor (2); the first motor (3) and the second motor (4) are connected with the control system (5) in an electric signal mode, and the control system (5) controls the synchronous operation of the female rotor (1) and the male rotor (2).
2. An oil-free screw main body driven by two motors as claimed in claim 1, wherein: the first motor (3) is arranged on one side of the female rotor (1), the second motor (4) is arranged on one side of the male rotor (2), and the first motor (3) and the second motor (4) are distributed on the same side.
3. An oil-free screw main body driven by two motors as claimed in claim 1, wherein: the first motor (3) is arranged on one side of the female rotor (1), the second motor (4) is arranged on one side of the male rotor (2), and the first motor (3) and the second motor (4) are distributed correspondingly.
4. An oil-free screw main body driven by two motors as claimed in claim 1, wherein: and the rotor shafts (8) of the female rotor (1) and the male rotor (2) and the motor shaft (9) of the motor are integrally cast and molded by coaxial cores.
5. An oil-free screw main body driven by two motors as claimed in claim 1, wherein: the control system (5) comprises a driver and a controller (5-3), the driver is divided into a first driver (5-1) and a second driver (5-2), the first driver (5-1) is connected with the first motor (3) in an electric signal mode, and the second driver (5-2) is connected with the second motor (4) in an electric signal mode; the first driver (5-1) and the second driver (5-2) are respectively connected with the controller (5-3) in an electric signal mode.
6. An oil-free screw main body driven by two motors as claimed in claim 5, wherein: the first driver (5-1) and the second driver (5-2) are both servo drivers.
7. An oil-free screw main body driven by two motors as claimed in claim 1, wherein: the first motor (3) and the second motor (4) are servo motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394517.4U CN211573770U (en) | 2019-12-27 | 2019-12-27 | Oil-free screw host driven by double motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922394517.4U CN211573770U (en) | 2019-12-27 | 2019-12-27 | Oil-free screw host driven by double motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211573770U true CN211573770U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922394517.4U Active CN211573770U (en) | 2019-12-27 | 2019-12-27 | Oil-free screw host driven by double motors |
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| CN (1) | CN211573770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503257A (en) * | 2021-08-12 | 2021-10-15 | 四川莱斯特真空科技有限公司 | Oil-free vacuum pump driven synchronously by double motors |
-
2019
- 2019-12-27 CN CN201922394517.4U patent/CN211573770U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503257A (en) * | 2021-08-12 | 2021-10-15 | 四川莱斯特真空科技有限公司 | Oil-free vacuum pump driven synchronously by double motors |
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