CN204082541U - Efficient stable permanent-magnet synchronous screw host - Google Patents
Efficient stable permanent-magnet synchronous screw host Download PDFInfo
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- CN204082541U CN204082541U CN201420537169.6U CN201420537169U CN204082541U CN 204082541 U CN204082541 U CN 204082541U CN 201420537169 U CN201420537169 U CN 201420537169U CN 204082541 U CN204082541 U CN 204082541U
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Abstract
The utility model discloses a kind of efficient stable permanent-magnet synchronous screw host, comprise the integrated casing be made up of motor housing and host housing, and be arranged on the fan of electric motor end cap side, and the rotor body be arranged in motor housing, and be arranged on the coupling shaft on rotor body, and be arranged on the rotor on rotor body, and the stator be arranged on outside rotor, and be arranged on the exhaust cap of host housing side, wherein, coupling shaft, male rotor are fastenedly connected by spiral through hole locking screw.In the utility model, 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, make whole permanent-magnet synchronous screw host more material saving, the integral installation time shortens 25% than existing equipment.
Description
Technical field
The utility model relates to air compressor technical field, is specifically related to a kind of efficient stable permanent-magnet synchronous screw host.
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 utility model provides a kind of efficient stable permanent-magnet synchronous screw host.
Model utility content
Model utility object: the purpose of this utility model provides a kind of efficient stable 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: a kind of efficient stable permanent-magnet synchronous screw host, 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 technical program, described efficient stable permanent-magnet synchronous screw host 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 technical program, described efficient stable permanent-magnet synchronous screw host 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 technical program, described the first rotor bearing locating slot, 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.
Compared with prior art, the beneficial effect of a kind of efficient stable permanent-magnet synchronous screw host of the present utility model is:
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 rotor axis of electric 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, to be provided with circular arc soon concavo-convex for shell, protruding area, and recessed area is 7:1, improves the heat diffusion area of shell, accelerates heat dissipation rate, improves working life.Simultaneously the utility model structure is simple, cost of production is low, easily promote.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of efficient stable permanent-magnet synchronous screw host of the present utility model;
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 utility model further.
A kind of efficient stable permanent-magnet synchronous screw host 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; Efficient stable permanent-magnet synchronous screw host 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 efficient stable permanent-magnet synchronous screw host 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 preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvement, these improvement also should be considered as protection domain of the present utility model.
Claims (4)
1. an efficient stable permanent-magnet synchronous screw host, 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. a kind of efficient stable permanent-magnet synchronous screw host according to claim 1, it is characterized in that: described efficient stable permanent-magnet synchronous screw host 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. a kind of efficient stable permanent-magnet synchronous screw host according to claim 1, it is characterized in that: described efficient stable permanent-magnet synchronous screw host 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. a kind of efficient stable permanent-magnet synchronous screw host according to claim 3, it 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537169.6U CN204082541U (en) | 2014-09-18 | 2014-09-18 | Efficient stable permanent-magnet synchronous screw host |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420537169.6U CN204082541U (en) | 2014-09-18 | 2014-09-18 | Efficient stable permanent-magnet synchronous screw host |
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| Publication Number | Publication Date |
|---|---|
| CN204082541U true CN204082541U (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420537169.6U Active CN204082541U (en) | 2014-09-18 | 2014-09-18 | Efficient stable permanent-magnet synchronous screw host |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329253A (en) * | 2014-09-18 | 2015-02-04 | 苏州欧能螺杆技术有限公司 | Efficient permanent magnet synchronous screw main-engine |
| CN106499631A (en) * | 2016-11-04 | 2017-03-15 | 西安航空动力控制科技有限公司 | A kind of roots blower |
| CN106939888A (en) * | 2017-04-28 | 2017-07-11 | 湖北富升智能装备股份有限公司 | The helical-lobe compressor directly driven without frame permagnetic synchronous motor |
-
2014
- 2014-09-18 CN CN201420537169.6U patent/CN204082541U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329253A (en) * | 2014-09-18 | 2015-02-04 | 苏州欧能螺杆技术有限公司 | Efficient permanent magnet synchronous screw main-engine |
| CN106499631A (en) * | 2016-11-04 | 2017-03-15 | 西安航空动力控制科技有限公司 | A kind of roots blower |
| CN106939888A (en) * | 2017-04-28 | 2017-07-11 | 湖北富升智能装备股份有限公司 | The helical-lobe compressor directly driven without frame permagnetic synchronous motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG JUFENG MACHINERY MANUFACTURING CO., LTD. Free format text: FORMER OWNER: SUZHOU E-POWER TECHNOLOGY CO., LTD. Effective date: 20150824 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150824 Address after: 511464 Guangdong city of Guangzhou province Panyu District Shiji Town Gold Mountain CRE Animation Industrial Park C1, C7, C17 Patentee after: GUANGDONG JUFENG MACHINERY MANUFACTURING CO., LTD. Address before: Chengxiang Taicang City Industrial Park, Suzhou City, Jiangsu province 215400 Donglin science and Technology Industrial Park No. 5 MediaTek Patentee before: SUZHOU E-POWER ROTOR TECHNOLOGY CO., LTD. |