CN202602498U - Dual-rotor soft-starting three-phase asynchronous brake motor - Google Patents
Dual-rotor soft-starting three-phase asynchronous brake motor Download PDFInfo
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- CN202602498U CN202602498U CN 201220197372 CN201220197372U CN202602498U CN 202602498 U CN202602498 U CN 202602498U CN 201220197372 CN201220197372 CN 201220197372 CN 201220197372 U CN201220197372 U CN 201220197372U CN 202602498 U CN202602498 U CN 202602498U
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Abstract
The utility model relates to a brake motor and provides a dual-rotor soft-starting three-phase asynchronous brake motor. The dual-rotor soft-starting three-phase asynchronous brake motor comprises a front end cover, a motor shell, a stator, a motor shaft, a birotor, a brake spring, an adjusting spring, a brake disk, a brake piece, a rear end cover, an adjusting block, an adjusting screw, a fan, a lock nut and a rear shade. The front half section of the birotor is a silicon-sheet squirrel cage rotor, and the rear half section of the birotor is a solid rotor. An axial closed aluminum ring is disposed at the two-thirds length of the solid rotor. Induced current and torque are generated from the magnetic field of a stator winding of the motor so as to attract the brake disk and generate braking torque. The braking torque and the braking speed are adjusted through the brake spring, the adjusting spring, the adjusting screw and the adjusting block. The dual-rotor soft-starting three-phase asynchronous brake motor adopts forced cooling to enhance heat dissipation, not only has soft starting characteristics, but also can decrease heating of the motor, and effectively overcomes the defect of weakness of the motor. The dual-rotor soft-starting three-phase asynchronous brake motor has the advantages of being compact in structure, small in size and light in weight, decreasing impact on equipment, having no need to be in external connection with a starting electronic control component, having no need of a transformer and reducing cost, and can be applied to all cranes,.
Description
Technical field
The utility model relates to a kind of brake motor, the phase asynchronous brake motor of especially a kind of birotor soft start.
Background technology
The used braking motor of traveling mechanism of the larger traveller is big because of starting torque on the existing hoisting equipment, in starting with big to the impact of hoisting equipment when stopping, causing the lifted weight double swerve, influences the useful life of the relevant gearing of motor and hoisting equipment; And starting current is big, and is also big to the impact of hoisting equipment electric part, also has influence on the useful life of relevant electric elements, thereby has a strong impact on the useful life of a whole set of hoisting equipment.The braking motor of general employing soft start characteristic has huge plane brake mechanism, make not only that machine volume is big, Heavy Weight, also need electric control elements such as external starting resistance or cam controller, cost is increased; And braking moment and retro-speed be fix, can't adjust.
Some novel soft motors are arranged in the market, and rotor adopts solid rotor, though can reach the soft start effect, motor generates heat easily, after use a period of time, because of weak phenomenon appears in heating, motor; Brake portion adopts the electromagnetic brake that adds that has rectifier, and starting current is big during because of electric motor starting, and fluctuation appears in voltage, is prone to cause rectifier to burn out, make brake failure.Use frequency converter can reach the soft start effect, but price is high, cost is big.
According to retrieval, domestic do not have the patent application identical with the utility model as yet.
Summary of the invention
Deficiency to above existence; The utility model provides a kind of birotor---the rotor first half be the silicon steel sheet cage rotor, latter half of be solid rotor; Both had the soft start characteristic, can reduce starting and when stopping to the impact of hoisting equipment; Can reduce again that the motor feels hot, can effectively overcome the weak phenomenon of motor, also the phase asynchronous brake motor of a kind of birotor soft start of scalable braking moment and retro-speed.
The utility model solves the technical scheme that its technical problem adopted: like Fig. 1, Fig. 2, shown in Figure 3, the phase asynchronous brake motor of this birotor soft start comprise front end housing 1, with casing fixedly all-in-one-piece stator 2, motor shaft 3, birotor 4, tripping spring 5, adjustment spring 6, brake disc 7, brake(-holder) block 8, rear end cap 9, adjustment piece 10, adjust screw 11, fan 12, locking nut 13, back cover 14; Described birotor 4 comprises rotor end ring 4.1, silicon steel sheet cage rotor 4.2, solid rotor 4.3, axial closed aluminium ring 4.4; On two-spool axial length; 1/2 part is a silicon steel sheet cage rotor 4.2, and 1/2 part is a solid rotor 4.3 in addition, and birotor 4 is integral with motor shaft 3 hot jackets; Described silicon steel sheet cage rotor 4.2 front ends make to have rotor end ring 4.1; 1/3 of described solid rotor 4.3 its axial lengths are solid core, and the cylindrical interference fit of the endoporus of solid core and motor shaft 3 makes to have closed aluminium ring 4.4 on the solid rotor of its axial length 2/3; Described closed aluminium ring 4.4 be with motor shaft 3 between form circumference uniform distribution on the iron core of endoporus and make the aluminium ring that aluminium ring that the aluminium width of cloth bar of no more than 20 groove hot-casts becomes with the endoporus hot-cast and the hot-cast of iron core peripheral groove become and form closed aluminium ring, closed aluminium ring 4.4 and solid core are cast into one formation solid rotor 4.3; Described silicon steel sheet cage rotor 4.2 is integral with closed aluminium ring 4.4 hot-casts simultaneously with the rotor end ring 4.1 and the solid rotor 4.3 of front end, constitutes birotor 4; Described motor shaft 3; Its splined shaft tail end pass diameter and with axial line vertical rectangular groove; In rectangular through slot, intert into rectangular block adjustment piece 10, the motor shaft tail end is made screwed hole and is cooperated with adjustment screw 11, and screwed hole is communicated with rectangular through slot; Make adjustment screw 11 can adjust the stroke of piece 10, install fan 12 additional in the rear end of motor shaft 3; Described tripping spring 5, one end bearings are at the bottom of the ladder endoporus of closed aluminium ring 4.4, and the other end is bearing in the small end inner groovy of brake disc 7; Described adjustment spring 6, one end bearings are in the inner groovy of the big end flanges dish of brake disc 7, and the adjustment piece 10 that the other end is interted in the motor shaft rectangular through slot supports; Described brake disc 7 its endoporus are made spline, and with the spline fitted of motor shaft 3, its big end makes to have ring flange; Flange surface is to brake(-holder) block 8 fixing on rear end cap 9 inner faces, and the ring flange endoporus makes to have inner groovy, in order to take up adjustment spring 6 and adjustment piece 10; The end face of its small end is in the face of closed aluminium ring 4.4 ends of solid rotor 4.3, and the small end endoporus does that inner groovy is arranged, in order to take up tripping spring 5; Strengthen the weight of brake disc 7; Make the moment of inertia of expanded motor, in electric motor starting, more strengthen the soft start effect; Described rear end cap 9, its inner face is brake(-holder) block 8 fixedly, and through hole is made in its rear end, penetrates this hole by adjustment screw 11 and is connected with the screwed hole of motor shaft 3, makes to have ventilation hole in the outer face of rear end cap; Described adjustment piece 10 is a rectangular blocks, and its two ends are done in the arc-shaped, makes to have the circular arc type ladder towards the one side two ends of adjustment spring 6; Described adjustment screw 11 contacts with the adjustment piece 10 that interts in motor shaft 3 grooves; Regulate adjustment screw 11; The stroke of scalable adjustment piece 10 reaches the decrement of regulating adjustment spring 6, thereby changes the active force of 5 pairs of brake discs 7 of tripping spring, reaches and regulates braking moment and retro-speed; Described locking nut 13 is used to lock the adjustment screw 11 that regulates behind braking moment and the retro-speed; Described back cover 14 is contained in the outside of rear end cap 9; Described motor front end housing 1, casing, rear end cap 9 all adopt aluminium alloy castingses; Help motor radiating; Doing on the rear end cap 9 has ventilation hole, and the dog point of motor shaft 3 has installed fan 12 additional, adopts forced air cooling; Strengthen heat radiation, effectively overcome motor and after operation a period of time, weak phenomenon occurs because of heating.
The beneficial effect of the utility model is:
1, this motor has the soft start characteristic, and its breakdown torque appears near the stall, after the energising; Motor begins to rotate, and along with the increase torque of rotating speed reduces, the acceleration of operational system reduces gradually; Prolong the start-up time of motor, especially strengthened the weight of brake disc, strengthened the moment of inertia of motor; In electric motor starting, the soft start better effects if.
2, the rotor of this motor is a dual-rotor structure; The rotor first half be the silicon steel sheet cage rotor, latter half of be solid rotor; Both had the soft start characteristic, can reduce starting and when stopping to the impact of hoisting equipment, can reduce again that the motor feels hot, overcome the weak phenomenon of motor.
3, this motor front end housing, casing, rear end cap all adopt aluminium alloy castings, help motor radiating, weight reduction; Doing on the rear end cap has ventilation hole, and the motor shaft dog point has installed fan additional, adopts forced air cooling, strengthens heat radiation, has overcome motor effectively and after operation a period of time, weak phenomenon occurred because of heating.
4, this motor itself has the planar friction brake structure, and tripping spring and adjustment spring, adjustment screw, adjustment piece, scalable braking moment and retro-speed are housed.
5, the forward and backward end cap of this motor, casing, all adopt aluminium alloy castings, aluminium alloy compression casting efficient is high, it is few to pollute, the favorable environment protection.
6,, thereby prolong the useful life of hoisting equipment and related electric part because the soft start characteristic of this motor has reduced motor impact to hoisting equipment in starting and when stopping.
7, the utility model little, in light weight than general soft start plane its compact conformation of braking motor, volume, save raw material, reduce and consume; Do not need electric control elements such as external starting resistance and cam controller; Need not use frequency converter, significantly reduce cost, good in economic efficiency.
The utility model can extensively promote the use in all hoisting machineries.
Description of drawings
Fig. 1 is the complete machine structure sketch map of the utility model.
Fig. 2 is the B-B revolved view of the dual-rotor structure sketch map of the utility model.
Fig. 3 is that the A of dual-rotor structure sketch map of the utility model is to view.
Embodiment
Utilize accompanying drawing and embodiment that the utility model is described further.
The utility model is the phase asynchronous brake motor of a kind of birotor soft start, and the rotor 4 of this motor is a birotor, on two-spool axial length; 1/2 part is a silicon steel sheet cage rotor 4.2, and 1/2 part is a solid rotor 4.3 in addition, and the front end of its silicon steel sheet cage rotor 4.2 makes to have rotor end ring 4.1; On the axial length of solid rotor 4.3; 1/3 part is a solid core, and the endoporus of solid core and motor shaft 3 cylindrical interference fit make to have closed aluminium ring 4.4 on the 2/3 part solid rotor; Described closed aluminium ring 4.4 be with motor shaft 3 between form on the iron core of annulus circumference uniform distribution make aluminium ring that the aluminium width of cloth bar of no more than 20 groove hot-casts becomes with the endoporus hot-cast and the aluminium ring of iron core peripheral groove hot-cast one-tenth forms closed aluminium ring, it is solid rotor 4.3 that closed aluminium ring 4.4 and iron core are cast into one; Be integral rotor end ring 4.1 and the solid rotor 4.3 of silicon steel sheet cage rotor 4.2 with closed aluminium ring 4.4 hot-casts simultaneously, constitute birotor 4, and hot jacket be on motor shaft 3 with front end; On tripping spring 5 pack into motor shaft 3 from motor splined shaft one end cover, make its bottom that supports to closed aluminium ring 4.4, with brake disc 7 small end faces to the closed aluminium ring 4.4 covers motor shaft of packing into; Its splined hole is matched with motor shaft 3 upper splines, will adjust the spring 6 cover motor shaft 3 of packing into, be bearing at the bottom of the inner groovy of brake disc 7 big end flanges dishes on; To do again the rectangularity cross section, two ends make adjustment piece 10 in the arc-shaped and intert in the rectangular through slot on the motor shaft 3; Adjustment screw 11 is screwed in the screw hole of motor shaft tail end, withstand on the back side of adjustment piece 10, make adjustment piece 10 push down adjustment spring 6; The rotor assembly of then general assembly being accomplished is packed into and casing fixedly in the all-in-one-piece stator 2; Load onto front end housing 1, be fixed with the rear end cap 9 of brake(-holder) block 8, treat that front and rear cover is seated after, load onto fan 12 at the tail end of motor shaft 3; Regulate adjustment screw 11 and lock locking nut 13, load onto back cover 14 at last.
The motor of the utility model is two-spool, both had the soft start characteristic, can reduce starting and when stopping to the impact of hoisting equipment, can reduce again that the motor feels hot, overcome the weak phenomenon of motor; This motor front end housing, casing, rear end cap all adopt aluminium alloy castings, help motor radiating, weight reduction; Doing on the rear end cap has ventilation hole, and the motor shaft dog point has installed fan additional, adopts forced air cooling, strengthens heat radiation, has overcome motor effectively and after operation a period of time, weak phenomenon occurred because of heating; Because the special construction of brake disc, adjustment piece etc., greatly simplified the bulkiness and the device of plane braking, make this motor not only had the plane braking function, but also compact conformation, volume little, in light weight, save material, reduce and consume; Do not need electric control elements such as external starting resistance and cam controller; Need not use frequency converter, significantly reduce cost, good in economic efficiency; Also can adjust braking moment and retro-speed, be a kind of novel braking motor.
The utility model can extensively promote the use in all hoisting machineries.
Claims (1)
1. phase asynchronous brake motor of birotor soft start is characterized in that: the phase asynchronous brake motor of this birotor soft start comprise front end housing (1), with casing fixedly all-in-one-piece stator (2), motor shaft (3), birotor (4), tripping spring (5), adjustment spring (6), brake disc (7), brake(-holder) block (8), rear end cap (9), adjustment piece (10), adjust screw (11), fan (12), locking nut (13), back cover (14); Described birotor (4) comprises rotor end ring (4.1), silicon steel sheet cage rotor (4.2), solid rotor (4.3), axial closed aluminium ring (4.4); On two-spool axial length; 1/2 part is silicon steel sheet cage rotor (4.2); 1/2 part is solid rotor (4.3) in addition, and birotor (4) is integral with motor shaft (3) hot jacket; Described silicon steel sheet cage rotor (4.2) front end makes to have rotor end ring (4.1); 1/3 of its axial length of described solid rotor (4.3) is a solid core, and the cylindrical interference fit of the endoporus of solid core and motor shaft (3) makes to have closed aluminium ring (4.4) on the solid rotor of its axial length 2/3; Described closed aluminium ring (4.4) be with motor shaft (3) between form circumference uniform distribution on the iron core of endoporus and make the aluminium ring that aluminium ring that the aluminium width of cloth bar of no more than 20 groove hot-casts becomes with the endoporus hot-cast and the hot-cast of iron core peripheral groove become and form closed aluminium ring, closed aluminium ring (4.4) and solid core are cast into one formation solid rotor (4.3); Described silicon steel sheet cage rotor (4.2) is integral with closed aluminium ring (4.4) hot-cast simultaneously with the rotor end ring (4.1) and the solid rotor (4.3) of front end, constitutes birotor (4); Described motor shaft (3); Its splined shaft tail end pass diameter and with axial line vertical rectangular groove; In rectangular through slot, intert into rectangular block adjustment piece (10), the motor shaft tail end is made screwed hole and is cooperated with adjustment screw (11), and screwed hole is communicated with rectangular through slot; Make adjustment screw (11) can adjust the stroke of piece (10), install fan (12) additional in the rear end of motor shaft (3); Described tripping spring (5), an end bearing are at the bottom of the ladder endoporus of closed aluminium ring (4.4), and the other end is bearing in the small end inner groovy of brake disc (7); Described adjustment spring (6), an end bearing are in the inner groovy of the big end flanges dish of brake disc (7), and the adjustment piece (10) that the other end is interted in the rectangular through slot of motor shaft (3) supports; Its endoporus of described brake disc (7) is made spline, and with the spline fitted of motor shaft (3), its big end makes to have ring flange; Flange surface is to brake(-holder) block (8) fixing on rear end cap (9) inner face, and the ring flange endoporus makes to have inner groovy, in order to take up adjustment spring (6) and adjustment piece (10); The end face of its small end is in the face of closed aluminium ring (4.4) end of solid rotor (4.3), and the small end endoporus does that inner groovy is arranged, in order to take up tripping spring (5); Strengthen the weight of brake disc (7); Make the moment of inertia of expanded motor, in electric motor starting, more strengthen the soft start effect; Described rear end cap (9), its inner face be brake(-holder) block (8) fixedly, and through hole is made in its rear end, penetrates this hole by adjustment screw (11) and is connected with the screwed hole of motor shaft (3), makes to have ventilation hole in the outer face of rear end cap (9); Described adjustment piece (10) is a rectangular blocks, and its two ends are done in the arc-shaped, makes to have the circular arc type ladder towards the one side two ends of adjustment spring (6); Described adjustment screw (11) contacts with the adjustment piece (10) that interts in motor shaft (3) groove; Regulate adjustment screw (11); The stroke of scalable adjustment piece (10) reaches the decrement of regulating adjustment spring (6); Thereby change the active force of tripping spring (5), reach and regulate braking moment and retro-speed brake disc (7); Described locking nut (13) is used to lock the adjustment screw (11) that regulates behind braking moment and the retro-speed; Described back cover (14) is contained in the outside of rear end cap (9); Described motor front end housing (1), casing, rear end cap (9) all adopt aluminium alloy castings; Help motor radiating; Rear end cap (9) is gone up and is done that ventilation hole is arranged, and the dog point of motor shaft (3) has installed fan (12) additional, adopts forced air cooling; Strengthen heat radiation, effectively overcome motor and after operation a period of time, weak phenomenon occurs because of heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220197372 CN202602498U (en) | 2012-05-04 | 2012-05-04 | Dual-rotor soft-starting three-phase asynchronous brake motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220197372 CN202602498U (en) | 2012-05-04 | 2012-05-04 | Dual-rotor soft-starting three-phase asynchronous brake motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202602498U true CN202602498U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220197372 Expired - Fee Related CN202602498U (en) | 2012-05-04 | 2012-05-04 | Dual-rotor soft-starting three-phase asynchronous brake motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202602498U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326507A (en) * | 2013-06-06 | 2013-09-25 | 江阴市电机电器厂 | Soft-start lateral-magnet motor rotor |
| CN103475177A (en) * | 2013-09-06 | 2013-12-25 | 株洲高精传动技术有限公司 | Brake motor and electric synchronization loader |
| CN105226898A (en) * | 2015-11-02 | 2016-01-06 | 王宏戈 | Speed governing three phase squirrel cage induction motor |
| CN105262262A (en) * | 2015-10-28 | 2016-01-20 | 李雨洁 | Composite motor and generator |
-
2012
- 2012-05-04 CN CN 201220197372 patent/CN202602498U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103326507A (en) * | 2013-06-06 | 2013-09-25 | 江阴市电机电器厂 | Soft-start lateral-magnet motor rotor |
| CN103475177A (en) * | 2013-09-06 | 2013-12-25 | 株洲高精传动技术有限公司 | Brake motor and electric synchronization loader |
| CN103475177B (en) * | 2013-09-06 | 2016-04-20 | 湖南南方宇航高精传动有限公司 | Brake motor and electric synchronization loader |
| CN105262262A (en) * | 2015-10-28 | 2016-01-20 | 李雨洁 | Composite motor and generator |
| CN105226898A (en) * | 2015-11-02 | 2016-01-06 | 王宏戈 | Speed governing three phase squirrel cage induction motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20150504 |
|
| EXPY | Termination of patent right or utility model |