CN104329253A - Efficient permanent magnet synchronous screw main-engine - Google Patents
Efficient permanent magnet synchronous screw main-engine Download PDFInfo
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- CN104329253A CN104329253A CN201410477131.9A CN201410477131A CN104329253A CN 104329253 A CN104329253 A CN 104329253A CN 201410477131 A CN201410477131 A CN 201410477131A CN 104329253 A CN104329253 A CN 104329253A
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- host
- permanent magnet
- housing
- motor
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Abstract
The invention discloses an efficient permanent magnet synchronous screw main-engine which comprises an integrated housing composed of a motor housing and a main-engine housing, a fan arranged at one side of a motor end-cap, a rotor body arranged inside the motor housing, a connecting shaft disposed on the rotor body, a rotor mounted on the rotor body, a stator arranged on the outside of the rotor and an exhaust cover disposed at one side of the main-engine housing, wherein the connecting shaft and a male rotor are firmly connected by the use of a locking screw through spiral through-holes. According to the invention, length of the main-engine shaft of the efficient permanent magnet synchronous screw main-engine is shortened a half of that of an original main-engine shaft, a motor shaft for the connection between the main engine and the motor is omitted, and two motor bearings are omitted. Material of the whole permanent magnet synchronous screw main-engine is saved, and the overall installation time is shortened by 25% than that of existing equipment.
Description
Technical field
The present invention relates to air compressor technical field, be specifically related to the synchronous screw host of a kind of efficient permanent magnet.
Background technique
Air compressor (English is: aircompressor), it is the device mechanical energy of prime mover (normally motor) being converted to gas pressure energy, it is compressed-air actuated pressure generator, the core component of its gas compressor is compressor host, the volume-variation of the teeth groove of the working principle negative and positive rotor that to be the compression of air be by being installed on engagement parallel to each other in casing and reaching, rotor is secondary to rotate and makes the gas between rotor teeth groove constantly produce periodic volume-variation and along rotor axis in the casing of its precision-fit, discharge side is pushed to by suction side, complete suction, compression, be vented three working procedure.
Current, prime mover of traditional screw air compressor adopts asynchronous motor usually, coupling is utilized to drive or utilize belt, the speedup of gear drives, it has following shortcoming: 1, the rotating speed of asynchronous motor is fixing, when compressor is fully loaded with work, asynchronous motor working efficiency reaches the highest, when compressor section load or no-load work, asynchronous motor is still with the rotary speed working of full load, efficiency reduction is even in idle running, and the load factor that compressor uses hardly may more than 90%, and then make its complete machine energy consumption high, efficiency is low and local temperature is too high, 2, because asynchronous motor volume ratio is larger, and need to drive compressor host work by coupling, cause machine shape size larger, consider from the angle of the whole compressor unit manufacturing small volume, wherein comprise the bearing for fixed electrical machinery in compressor unit, add manufacture difficulty obviously unreasonable.The shortcoming simultaneously utilizing the speedup of belt or gear to drive shows as compressor except needing one for holding except the gear-box of overdrive gear, also need many component, such as rotating and supporting the bearing of overdrive gear and the running shaft for installing this overdrive gear, there is accelerating function and for the belt of transferring power and belt pulley etc., make its complex structure and the cost of production of compressor increases.
Therefore, based on the problems referred to above, the invention provides the synchronous screw host of a kind of efficient permanent magnet.
Summary of the invention
Goal of the invention: object of the present invention provides a kind of efficient permanent magnet synchronous screw host, solve that existing double-screw air compressor volume is large, complex structure and use time local heating value high, less stable shortcoming, stability during raising work and air compressing efficiency, reduce production cost.
Technological scheme: the invention discloses the synchronous screw host of a kind of efficient permanent magnet, comprise the integrated casing structure be made up of motor housing and host housing, and be arranged on the electric motor end cap of motor housing side, and be arranged on the fan of electric motor end cap side, and the rotor body be arranged in motor housing, and the coupling shaft be arranged on rotor body, and the rotor be arranged on rotor body, and the stator be arranged on outside rotor, and be arranged on the exhaust cap of host housing side, and the male rotor be arranged in host housing, female rotor, and be arranged on host housing bosom for supporting the first male rotor bearing of male rotor, and for supporting the second male rotor bearing of the male rotor the other end, and be arranged on the inner two ends of host housing for supporting the first female rotor axle of female rotor, second female rotor axle, wherein, one end of described coupling shaft, male rotor is respectively arranged with spiral through hole, and coupling shaft, male rotor are fastenedly connected by spiral through hole locking screw.
The synchronous screw host of efficient permanent magnet of the present invention also comprises the locking nut for connecting motor housing, host housing, and the screw hole locking nut that wherein locking nut is arranged by motor housing, host housing inside is fastenedly connected.
The synchronous screw host of efficient permanent magnet of the present invention also comprises the first rotor bearing locating slot be arranged in host housing, the second rotor bearing locating slot and bearing positioning block, wherein, the first rotor bearing locating slot, the second rotor bearing locating slot are respectively used to the location to the second female rotor axle, the second male rotor bearing, are fixed the second female rotor axle, the second male rotor bearing by bearing positioning block.
The first rotor bearing locating slot of the present invention, the second rotor bearing locating slot are set to U-shaped, and inside U-shaped groove and bottom is respectively arranged with latch; Described bearing positioning block is set to T-shaped.
Coupling shaft described in the present invention is diminished shaft, and the tapering socket ratio of this coupling shaft is 1:10, adopts diminished shaft to connect more stable.
The flabellum of fan described in the present invention becomes butterfly, the flabellum of butterfly is conducive to the quick heat radiating of motor, make whole the motor feels hot efficiency step-down, when being used in particular for solving motor low cruise, temperature sharply rises the problem causing permanent magnet to lose efficacy, make electric machine temperature rise be in less than 60 DEG C always, also making the temperature of motor entirety when running up 15-20 ° lower than the motor temperature of standing state simultaneously, remaining on less than 55 DEG C, make life of product improve 3-4 doubly.
Shell described in the present invention is provided with circular arc shaggy block, protruding area: recessed area is 7:1, improves the heat diffusion area of shell, accelerates heat dissipation rate, improves working life.
Beneficial effect:
Compared with prior art, the synchronous screw host of a kind of efficient permanent magnet of the present invention has the following advantages:
1, the advocate peace connection of motor of permanent-magnet synchronous screw rod eliminates center rest and coupling, connect by means of only boss rod between main frame and motor, the length reduction of boss rod is the half of original host axle, connection between main frame and motor eliminates motor shaft, eliminate two motor bearingss, achieve main frame and motor integration synchronized links, net synchronization capability is more excellent, make whole permanent-magnet synchronous screw host more material saving, the integral installation time shortens 25% than existing equipment;
2, in permanent-magnet synchronous screw host, main frame and the connection of motor are that tapering is connected, tapering socket ratio is 1:10, make main frame and motor connection reliability is good, synchronism is excellent, make the noise produced in motor whole service process be reduced to less than 60 decibels simultaneously, ensure to meet environmental protection production requirement;
3, permanent-magnet synchronous screw host arranges butterfly fan at motor tail end, make whole the motor feels hot efficiency step-down, when being used in particular for solving motor low cruise, temperature sharply rises the problem causing permanent magnet to lose efficacy, make electric machine temperature rise be in less than 60 DEG C always, also make the temperature of motor entirety when running up 15-20 ° lower than the motor temperature of standing state simultaneously, remain on less than 55 DEG C, make life of product improve 3-4 doubly;
4, the shell of main frame and motor adopts integrated casing structure, host housing and these two shells of motor housing is merged into a shell, optimizes overall structure, make motor volume reduce more than 5%;
5, shell is provided with circular arc shaggy block, protruding area: recessed area is 7:1, improves the heat diffusion area of shell, accelerates heat dissipation rate, improves working life.Simultaneously structure of the present invention is simple, cost of production is low, easily promote.
Accompanying drawing explanation
Fig. 1 is the structural representation of the synchronous screw host of a kind of efficient permanent magnet of the present invention;
Wherein in figure, sequence number is as follows: 1-motor housing, 2-electric motor end cap, 3-fan, 4-rotor body, 5-coupling shaft, 6-rotor, 7-stator, 8-host housing, 9-locking nut, 10-exhaust cap, 11-male rotor, 12-female rotor, 13-locking screw, 14-first male rotor bearing, 15-second male rotor bearing, 16-first female rotor axle, 17-second female rotor axle, 18-the first rotor bearing locating slot, 19-second rotor bearing locating slot, 20-bearing positioning block.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further.
The synchronous screw host of a kind of efficient permanent magnet as shown in Figure 1, comprise the integrated casing structure be made up of motor housing 1 and host housing 8, and be arranged on the electric motor end cap 2 of motor housing 1 side, and be arranged on the fan 3 of electric motor end cap 2 side, and the rotor body 4 be arranged in motor housing 1, and the coupling shaft 5 be arranged on rotor body 4, and the rotor 6 be arranged on rotor body 4, and the stator 7 be arranged on outside rotor 6, and be arranged on the exhaust cap 10 of host housing 8 side, and the male rotor 11 be arranged in host housing 8, female rotor 12, and be arranged on host housing 8 bosom for supporting the first male rotor bearing 14 of male rotor 11, and for supporting the second male rotor bearing 15 of male rotor 11 the other end, and be arranged on the inner two ends of host housing 8 for supporting the first female rotor axle 16 of female rotor 12, second female rotor axle 17, wherein, one end of coupling shaft 5, male rotor 11 is respectively arranged with spiral through hole, and coupling shaft 5, male rotor 11 are fastenedly connected by spiral through hole locking screw 13.
Preferred further, efficient double-screw air compressor also comprises the locking nut 9 for connecting motor housing 1, host housing 8, the screw hole locking nut 9 that wherein locking nut 9 is arranged by motor housing 1, host housing 8 inside is fastenedly connected, and forms integrated casing structure and beautiful shape; The synchronous screw host of efficient permanent magnet also comprises and is arranged on the first rotor bearing locating slot 18, second rotor bearing locating slot 19 in host housing 8 and bearing positioning block 20, wherein, the first rotor bearing locating slot 18, second rotor bearing locating slot 19 is respectively used to the location to the second female rotor axle 17, second male rotor bearing 15, by bearing positioning block 20, second female rotor axle 17, second male rotor bearing 15 is fixed, its install simple, fixing-stable reliable, greatly improves air compressor working life; The first rotor bearing locating slot 18, second rotor bearing locating slot 19 is set to U-shaped, and inside U-shaped groove and bottom is respectively arranged with latch, and bearing positioning block 20 is set to T-shaped, is convenient to assembling and demolition and maintenance.
The synchronous screw host of efficient permanent magnet of this structure, rotor body 4 embeds in rotor 6 and namely embed powerful permanent magnet, effectively reduce the internal loss of motor, electric efficiency reference value has exceeded the international peak efficiency classification standard of IE4, takes embedded structure on the one hand, reluctance torque is utilized, when low cruise, still can keep higher electric efficiency, motor volume is little on the other hand, be 1/3 of common frequency modulation motor size, be convenient to install.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, and these improvement also should be considered as protection scope of the present invention.
Claims (7)
1. the synchronous screw host of efficient permanent magnet, it is characterized in that: comprise the integrated casing structure be made up of motor housing (1) and host housing (8), and be arranged on the electric motor end cap (2) of motor housing (1) side, and be arranged on the fan (3) of electric motor end cap (2) side, and the rotor body (4) be arranged in motor housing (1), and the coupling shaft (5) be arranged on rotor body (4), and the rotor (6) be arranged on rotor body (4), and be arranged on the stator (7) in rotor (6) outside, and be arranged on the exhaust cap (10) of host housing (8) side, and the male rotor (11) be arranged in host housing (8), female rotor (12), and be arranged on host housing (8) bosom for supporting the first male rotor bearing (14) of male rotor (11), and for supporting the second male rotor bearing (15) of male rotor (11) the other end, and be arranged on host housing (8) inner two ends for supporting the first female rotor axle (16) of female rotor (12), second female rotor axle (17), wherein, one end of described coupling shaft (5), male rotor (11) is respectively arranged with spiral through hole, and coupling shaft (5), male rotor (11) are fastenedly connected by spiral through hole locking screw (13).
2. the synchronous screw host of a kind of efficient permanent magnet according to claim 1, it is characterized in that: the synchronous screw host of described efficient permanent magnet also comprises the locking nut (9) for connecting motor housing (1), host housing (8), the screw hole locking nut (9) that wherein locking nut (9) is arranged by motor housing (1), host housing (8) inside is fastenedly connected.
3. the synchronous screw host of a kind of efficient permanent magnet according to claim 1, it is characterized in that: the synchronous screw host of described efficient permanent magnet also comprises the first rotor bearing locating slot (18) be arranged in host housing (8), second rotor bearing locating slot (19) and bearing positioning block (20), wherein, the first rotor bearing locating slot (18), second rotor bearing locating slot (19) is respectively used to the second female rotor axle (17), the location of the second male rotor bearing (15), by bearing positioning block (20) to the second female rotor axle (17), second male rotor bearing (15) is fixed.
4. the synchronous screw host of a kind of efficient permanent magnet according to claim 3, is characterized in that: described the first rotor bearing locating slot (18), the second rotor bearing locating slot (19) are set to U-shaped, and inside U-shaped groove and bottom is respectively arranged with latch; Described bearing positioning block (20) is set to T-shaped.
5. the synchronous screw host of a kind of efficient permanent magnet according to claim 1, is characterized in that: described coupling shaft (5) is diminished shaft, and the tapering socket ratio of this coupling shaft is 1:10.
6. the synchronous screw host of a kind of efficient permanent magnet according to claim 1, is characterized in that: the flabellum of described fan becomes butterfly.
7. the synchronous screw host of a kind of efficient permanent magnet according to claim 1, is characterized in that: described shell is provided with circular arc shaggy block, protruding area: recessed area is 7:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477131.9A CN104329253A (en) | 2014-09-18 | 2014-09-18 | Efficient permanent magnet synchronous screw main-engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477131.9A CN104329253A (en) | 2014-09-18 | 2014-09-18 | Efficient permanent magnet synchronous screw main-engine |
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| Publication Number | Publication Date |
|---|---|
| CN104329253A true CN104329253A (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410477131.9A Pending CN104329253A (en) | 2014-09-18 | 2014-09-18 | Efficient permanent magnet synchronous screw main-engine |
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| CN (1) | CN104329253A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156297A (en) * | 2015-10-09 | 2015-12-16 | 浙江商业机械厂有限公司 | Efficient energy-saving semi-closed refrigerating compressor |
| CN105680609A (en) * | 2016-03-29 | 2016-06-15 | 宁波菲仕电机技术有限公司 | Air compressor-used direct-driven permanent magnet synchronous motor |
| CN110073109A (en) * | 2016-12-15 | 2019-07-30 | 开利公司 | Helical-lobe compressor with magnetic gear |
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| CN201031797Y (en) * | 2007-04-29 | 2008-03-05 | 崔炳如 | Totally enclosed double screws type ammonia refrigerating compressor |
| CN201827074U (en) * | 2010-07-27 | 2011-05-11 | 苏州通润驱动设备股份有限公司 | Twin-screw air compressor |
| CN202867198U (en) * | 2012-11-07 | 2013-04-10 | 王俊杰 | Low-pressure oil-injection screw compressor |
| 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 |
| CN203130499U (en) * | 2013-03-15 | 2013-08-14 | 珠海格力电器股份有限公司 | Screw compressor |
| CN203430780U (en) * | 2013-08-13 | 2014-02-12 | 福建雪人压缩机科技有限公司 | Semi-closed variable-frequency high-speed screw refrigerating compressor |
| CN204082541U (en) * | 2014-09-18 | 2015-01-07 | 苏州欧能螺杆技术有限公司 | Efficient stable permanent-magnet synchronous screw host |
-
2014
- 2014-09-18 CN CN201410477131.9A patent/CN104329253A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201031797Y (en) * | 2007-04-29 | 2008-03-05 | 崔炳如 | Totally enclosed double screws type ammonia refrigerating compressor |
| CN201827074U (en) * | 2010-07-27 | 2011-05-11 | 苏州通润驱动设备股份有限公司 | Twin-screw air compressor |
| CN202867198U (en) * | 2012-11-07 | 2013-04-10 | 王俊杰 | Low-pressure oil-injection screw compressor |
| 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 |
| CN203130499U (en) * | 2013-03-15 | 2013-08-14 | 珠海格力电器股份有限公司 | Screw compressor |
| CN203430780U (en) * | 2013-08-13 | 2014-02-12 | 福建雪人压缩机科技有限公司 | Semi-closed variable-frequency high-speed screw refrigerating compressor |
| CN204082541U (en) * | 2014-09-18 | 2015-01-07 | 苏州欧能螺杆技术有限公司 | Efficient stable permanent-magnet synchronous screw host |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156297A (en) * | 2015-10-09 | 2015-12-16 | 浙江商业机械厂有限公司 | Efficient energy-saving semi-closed refrigerating compressor |
| CN105680609A (en) * | 2016-03-29 | 2016-06-15 | 宁波菲仕电机技术有限公司 | Air compressor-used direct-driven permanent magnet synchronous motor |
| CN110073109A (en) * | 2016-12-15 | 2019-07-30 | 开利公司 | Helical-lobe compressor with magnetic gear |
| CN110073109B (en) * | 2016-12-15 | 2021-10-29 | 开利公司 | Screw compressor with magnetic gear |
| US11293438B2 (en) | 2016-12-15 | 2022-04-05 | Carrier Corporation | Screw compressor with magnetic gear |
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Application publication date: 20150204 |
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