CN103401353A - Oil-cooled screw air compressor coaxial with motor - Google Patents
Oil-cooled screw air compressor coaxial with motor Download PDFInfo
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- CN103401353A CN103401353A CN2013103189788A CN201310318978A CN103401353A CN 103401353 A CN103401353 A CN 103401353A CN 2013103189788 A CN2013103189788 A CN 2013103189788A CN 201310318978 A CN201310318978 A CN 201310318978A CN 103401353 A CN103401353 A CN 103401353A
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- air compressor
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- driving shaft
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Abstract
The invention relates to an oil-cooled screw air compressor coaxial with a motor, which comprises an air compressor host and a circulating oil system. The tail part of the air compressor host is provided with a machine body bracket; a motor shell is arranged on the machine body bracket in a centering mode; the motor shell is provided with a cooling interlayer; the inner wall of the motor shell is provided with a motor stator; a motor rotor is arranged in the motor shell; the motor rotor is fastened with a driving shaft of the air compressor host so as to form one whole body; the cooling interlayer on the motor shell is communicated with the circulating oil system by an oil pipe. According to the invention, the rotor of the motor is arranged on the driving shaft of the air compressor host, so that the transmission efficiency of the motor achieves 100 percent; the oil-cooled screw air compressor fulfills the aim of integrating the motor with the air compressor host into one whole body, so that the motor is not provided with a bearing, fault points of the motor are eliminated and no maintenance of the motor is implemented.
Description
Technical field
The present invention relates to a kind of screw air compressor.
Background technology
Energy-saving and emission-reduction are long term objects in the Chinese national economy evolution, and the aspects such as reliability of reduction unit noise, raising product are also very important rings.At present, the air compressor industry is to drive air compressor main machine with ventilated motor basically, and motor and main frame respectively are integrated; For the direct connection machine, be to connect by center rest and shaft coupling, the axiality of two machines is that the elastic compensating by the accuracy of manufacture of center rest and shaft coupling is guaranteed, not only assembling is complicated, cost is high, and reduced transmission efficiency, affected the reliability of product.Ventilated motor is to disperse by the air-flow that self-contained fan produces the heat that produces in the excitation process, and rotation speed of the fan is synchronizeed with motor, and the noise that so not only because of air current flow, produces can't be avoided, and motor bearings also can form larger noise; And for the frequency conversion screw air compressor, due to the cooling air quantitative limitation, generating unit speed is unsuitable too low, thereby has limited the tuning range of unit.
Summary of the invention
In order to overcome existing air-cooled screw air compressor, the oil cooling that the invention provides a kind of and motor coaxle is screw air compressor but.
The technical scheme that the present invention solves its technical problem is: with but screw air compressor of the oil cooling of motor coaxle, comprise air compressor main machine and recycle oil system, the afterbody of described air compressor main machine is provided with the body carriage, on described body carriage, centering is equipped with electric machine casing, and described electric machine casing is provided with cooling sandwith layer;
The inwall of described electric machine casing is provided with motor stator, is provided with rotor in described electric machine casing, thus the fastening formation of the driving shaft of described rotor and described air compressor main machine one; Cooling sandwith layer on described electric machine casing and described recycle oil system are by oil pipe UNICOM.
Further, the driving shaft of described air compressor main machine stretches in described electric machine casing, described rotor is placed on the driving shaft of described air compressor main machine, and the driving shaft of described air compressor main machine is connected by a bolt that is penetrated by the rotor afterbody with described rotor.
Further, the rear end face of described body carriage is provided with seal box, and described body carriage is provided with the return port that is positioned at described seal box the place ahead.
By oil pipe, the cold oil of motor is incorporated into the recycle oil system of air compressor, and utilized the pressure official post cold oil of air compressor self constantly to circulate.Cold oil is taken away the heat that produces in the motor excitation process by the cooling sandwith layer of motor.
Beneficial effect of the present invention is: 1. the present invention is arranged on the rotor of motor on the driving shaft of air compressor main machine, makes its transmission efficiency reach 100 ﹪; 2. the present invention has reached the purpose that motor and air compressor main machine are integrated, and electromotor no axis is held, and has eliminated the fault point of motor, has realized the non-maintaining of motor; 3. fundamentally eliminated the noise of cooling air and motor bearings, the complete machine noise is further reduced; 4. it is cooling that motor adopts cold oil, can effectively utilize the recycle oil system of air compressor unit, thereby improve the low-speed characteristic of motor, enlarged the air feed scope of unit; 5. cancelled center rest and the shaft coupling of unit, made mechanism compacter, this when guaranteeing main frame and motor coaxle degree, has further reduced manufacturing cost.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 1, with but screw air compressor of the oil cooling of motor coaxle, comprise air compressor main machine 1 and recycle oil system, the afterbody of described air compressor main machine is provided with body carriage 2, on described body carriage 2, centering is equipped with electric machine casing 3, and described electric machine casing 3 is provided with cooling sandwith layer 4.
The inwall of described electric machine casing 2 is provided with motor stator 5, is provided with rotor 6 in described electric machine casing 1, thus the fastening formation of driving shaft 7 one of described rotor 6 and described air compressor main machine.The driving shaft 7 of air compressor main machine described in the present embodiment stretches in described electric machine casing 3, described rotor 6 is placed on the driving shaft 7 of described air compressor main machine, and the driving shaft 7 of described air compressor main machine is connected by a bolt 8 that is penetrated by the rotor afterbody with described rotor 6.
Cooling sandwith layer 4 on described electric machine casing passes through oil pipe UNICOM with described recycle oil system.
By oil pipe, the cold oil of motor is incorporated into the recycle oil system of air compressor, and utilized the pressure official post cold oil of air compressor self constantly to circulate.Cold oil takes away by the cooling sandwith layer 4 of motor the heat that produces in the motor excitation process.
In the present embodiment, the rear end face of described body carriage 2 is provided with seal box 9, and described body carriage is provided with the return port 10 that is positioned at described seal box 9 the place aheads.If air compressor main machine produces leakage because of seal fails, the oily sealed box 9 of leakage is tackled rear by return port 10 outflow motors.
Claims (3)
1. with but screw air compressor of the oil cooling of motor coaxle, comprise air compressor main machine and recycle oil system, it is characterized in that: the afterbody of described air compressor main machine is provided with the body carriage, on described body carriage, centering is equipped with electric machine casing, and described electric machine casing is provided with cooling sandwith layer;
The inwall of described electric machine casing is provided with motor stator, is provided with rotor in described electric machine casing, thus the fastening formation of the driving shaft of described rotor and described air compressor main machine one;
Cooling sandwith layer on described electric machine casing and described recycle oil system are by oil pipe UNICOM.
2. but screw air compressor of the oil cooling of as claimed in claim 1 and motor coaxle, it is characterized in that: the driving shaft of described air compressor main machine stretches in described electric machine casing, described rotor is placed on the driving shaft of described air compressor main machine, and the driving shaft of described air compressor main machine is connected by a bolt that is penetrated by the rotor afterbody with described rotor.
3. but screw air compressor of the oil cooling of as claimed in claim 1 or 2 and motor coaxle, it is characterized in that: the rear end face of described body carriage is provided with seal box, and described body carriage is provided with the return port that is positioned at described seal box the place ahead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103189788A CN103401353A (en) | 2013-07-27 | 2013-07-27 | Oil-cooled screw air compressor coaxial with motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103189788A CN103401353A (en) | 2013-07-27 | 2013-07-27 | Oil-cooled screw air compressor coaxial with motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103401353A true CN103401353A (en) | 2013-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103189788A Pending CN103401353A (en) | 2013-07-27 | 2013-07-27 | Oil-cooled screw air compressor coaxial with motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103401353A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322716A (en) * | 2014-06-11 | 2016-02-10 | 上海汉钟精机股份有限公司 | Motor cooling structure for direct connection screw compressor |
| CN106151044A (en) * | 2016-08-22 | 2016-11-23 | 珠海格力电器股份有限公司 | Cover plate, compressor and air-conditioner |
| CN107359746A (en) * | 2017-08-16 | 2017-11-17 | 泛亚气体技术（无锡）有限公司 | Oil-cooled motor for compressor |
| DE102022107419A1 (en) | 2022-03-28 | 2023-09-28 | Tianjin Gasin-Donghui Preservation Technologies Co., Ltd | Thermostatic twin-screw refrigeration and compression unit with a wide temperature range |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1826887A2 (en) * | 2006-02-24 | 2007-08-29 | General Electric Company | Methods and apparatus for using an electrical machine to transport fluids through a pipeline |
| EP1921402A2 (en) * | 2006-11-01 | 2008-05-14 | Honeywell International, Inc. | Electrical motor cooling jacket resistor |
| CN201162674Y (en) * | 2008-01-29 | 2008-12-10 | 岑焕军 | Novel direct connection screw type air compressor |
| CN202586605U (en) * | 2012-05-22 | 2012-12-05 | 宁波德曼压缩机有限公司 | Oil cooling motor for compressor and frequency conversion oil-injection threaded-rod air compressor comprising oil cooling motor |
| CN202900662U (en) * | 2012-11-12 | 2013-04-24 | 苏州通润驱动设备股份有限公司 | Integrated screw air compressor |
| CN203398927U (en) * | 2013-07-27 | 2014-01-15 | 宁波德曼压缩机有限公司 | Oil-cooled screw air compressor coaxial with motor |
-
2013
- 2013-07-27 CN CN2013103189788A patent/CN103401353A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1826887A2 (en) * | 2006-02-24 | 2007-08-29 | General Electric Company | Methods and apparatus for using an electrical machine to transport fluids through a pipeline |
| EP1921402A2 (en) * | 2006-11-01 | 2008-05-14 | Honeywell International, Inc. | Electrical motor cooling jacket resistor |
| CN201162674Y (en) * | 2008-01-29 | 2008-12-10 | 岑焕军 | Novel direct connection screw type air compressor |
| CN202586605U (en) * | 2012-05-22 | 2012-12-05 | 宁波德曼压缩机有限公司 | Oil cooling motor for compressor and frequency conversion oil-injection threaded-rod air compressor comprising oil cooling motor |
| CN202900662U (en) * | 2012-11-12 | 2013-04-24 | 苏州通润驱动设备股份有限公司 | Integrated screw air compressor |
| CN203398927U (en) * | 2013-07-27 | 2014-01-15 | 宁波德曼压缩机有限公司 | Oil-cooled screw air compressor coaxial with motor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322716A (en) * | 2014-06-11 | 2016-02-10 | 上海汉钟精机股份有限公司 | Motor cooling structure for direct connection screw compressor |
| CN106151044A (en) * | 2016-08-22 | 2016-11-23 | 珠海格力电器股份有限公司 | Cover plate, compressor and air-conditioner |
| CN107359746A (en) * | 2017-08-16 | 2017-11-17 | 泛亚气体技术（无锡）有限公司 | Oil-cooled motor for compressor |
| CN107359746B (en) * | 2017-08-16 | 2023-08-22 | 泛亚气体技术（无锡）有限公司 | Oil-cooled motor for compressor |
| DE102022107419A1 (en) | 2022-03-28 | 2023-09-28 | Tianjin Gasin-Donghui Preservation Technologies Co., Ltd | Thermostatic twin-screw refrigeration and compression unit with a wide temperature range |
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Application publication date: 20131120 |