CN101552513A - Permanent magnet double-reduction motor - Google Patents
Permanent magnet double-reduction motor Download PDFInfo
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- CN101552513A CN101552513A CNA2008101478496A CN200810147849A CN101552513A CN 101552513 A CN101552513 A CN 101552513A CN A2008101478496 A CNA2008101478496 A CN A2008101478496A CN 200810147849 A CN200810147849 A CN 200810147849A CN 101552513 A CN101552513 A CN 101552513A
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- permanent magnet
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- planetary gear
- reduction motor
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Abstract
The invention relates to a motor, in particular to a permanent magnet double-reduction motor which belongs to the mechanical field. The permanent magnet double-reduction motor comprises a stator assembly, an armature assembly and a rear cover. The permanent magnet double-reduction motor is characterized in that: the permanent magnet double-reduction motor further comprises a planetary reducer mechanism I and a planetary reducer mechanism II, the armature assembly is connected with the planetary reducer mechanism I through a bearing base, and the planetary reducer mechanism II is arranged on the planetary reducer mechanism I. The reducing mechanisms of the motor are the two-stage planetary reducer mechanisms and can simultaneously output two torques, thereby improving the applicability of the motor; simultaneously, the motor has small motor volume, stable performance, low noise, small no-load current and great braking torque. The motor has the advantages of a permanent magnet direct current motor, simultaneously has the advantages of a reduction motor and a direct-driven motor and can output the different torques to achieve multiple purposes of one machine, thereby overcoming the problem of small torque of the existing direct current permanent magnet direct-driven motor.
Description
Technical field
The present invention relates to a kind of motor, particularly a kind of permanent magnet double-reduction motor belongs to mechanical field.
Background technology
At present, Xian Jin motorcycle starter adopts charged magnetic switch or direct-drive type starter; Charged magnetic switch mostly is that reducing motor, the general 15-20N.m of its output torque do not wait, the direct-drive type starter motor is generally 5-14N.m, but does not all reach 40N.m, and volume is big, noise is big, adopt permanent magnetism direct current starter motor output torque littler, can reach 6---10N.M after the employing one-level is slowed down and not wait, this class starter motor is simple in structure, volume is little, light weight, noise is little, and power is little.And domestic motorcycle adopts the Starting mode of permanent magnet direct-drive formula very general, and its output torque is mostly less than 2N.m.China is motorcycle consumption big country, also is motorcycle big producing country, and market competition is more and more fierce, and its technology content requires also more and more higher.1990.09.12, Patent Office of the People's Republic of China discloses the utility model patent (notification number: CN2062129) of a kind of " planetary reduction gear starting motor " by name, it adopts and add a planet gear reducing gear between electric electromechanics pivot and output shaft, and the stator of motor adopts permanent magnetic iron, volume weight is all reduced, and do well out of to make product seriation in addition.2006.03.29, Patent Office of the People's Republic of China discloses the utility model patent (notification number: CN2768287) of a kind of " planetary permanent magnetism decelerator " by name, this permanent magnetism decelerator comprises driven wheel, rotates compositions such as guide shaft, reduction chamber, direct current high-speed electric expreess locomotive.The output wheel of direct current high-speed electric expreess locomotive is the tooth great wheel, is provided with reduction chamber in the outside of this tooth great wheel, and gear is arranged in the reduction chamber, between tooth great wheel and internal gear, bite and closed planetary gear, planetary gear drives and rotates guide shaft, rotates guide shaft and connects driven wheel, makes the driven wheel acting.This utility model is provided with multidirectional current input terminal, can change the rotation direction of motor, and it is fast to be suitable on the taxi the used motor requirement reaction of hijacking-proof device, the requirement that moment is big.2003.04.02, Patent Office of the People's Republic of China discloses the utility model patent (notification number: CN2543249) of a kind of " DC permanent magnet decelerator " by name, comprise stator, rotor, brush, axle, worm and gear speed-reduction apparatus, its brush places brush box, brush box is outward a brush carrier, the radial outside of brush is established conduction brush seat board and insulation cover plate successively, be provided with spring and be connected lead between brush and brush holder plate, worm shaft in motor power axle and the deceleration device is independently two sections axles of difference, and two sections between centers are connected by flexible coupling.The weak point of above-mentioned motor be one be motor force little, the 2nd, can only export a kind of moment of torsion, so applicability is narrower.
Summary of the invention
For solving the above-mentioned defective of prior art, the invention provides a kind of permanent magnet double-reduction motor.The reducing gear of this motor is the secondary planet reducing gear, can export two kinds of torsion simultaneously, improves the applicability of motor; Motor volume is little simultaneously, stable performance, and noise is little, and no-load current is little, and braking torque is big.
Technical scheme of the present invention is to be achieved by following content:
A kind of permanent magnet double-reduction motor, comprise field frame assembly, rotor assembly one bonnet, it is characterized in that: described permanent magnet double-reduction motor also comprises planetary gear speed reducing mechanism I and planetary gear speed reducing mechanism II, described rotor assembly is connected with planetary gear speed reducing mechanism I by bearing pedestal, and planetary gear speed reducing mechanism II is arranged on the planetary gear speed reducing mechanism I.
Described planetary gear speed reducing mechanism I by planet axis, fixed planet shafts and connect simultaneously middle cover bearing, be fixed on ring gear in the middle cover, the fixing alignment pin of ring gear, be located at planetary gear and oil sealing formation on the planet axis.
Described planetary gear speed reducing mechanism II by protecgulum, be fixed at bearing I I, planet axis II, ring gear II, planetary gear II in the protecgulum, the fixedly alignment pin II of ring gear, and jack shaft II, shaft block ring II, oiliness bearing II constitute.
In described, cover sheathed O-ring seals.
Described planetary gear II is fixed by big end back-up ring.
Reducing gear II and reducing gear I combine by connecting screw rod.
Described field frame assembly adopts permanent-magnet stator.
In stating planetary gear speed reducing mechanism I, the bearing fixing planet axis connects middle cover simultaneously; Alignment pin effectively is fixed on ring gear in the middle cover; Make planet axis and ring gear like this on an axle center.Two jack shafts be pressed together on the transverse plane of planet axis and and axis parallel, as the rotation center of two planet pinions.Two planetary gear I that assembled needle bearing are overlapped in the above, rotation by armature just passes and two planetary gears like this, ring gear is as fixture, revolve round the sun around the axle center in the time of two planetary gear rotations, the drive planet axis is rotated, to slow down by two planetary gears at a high speed, and finish the deceleration task and export by planet axis I.
The power of planetary gear speed reducing mechanism II comes from planetary gear speed reducing mechanism I, and two oiliness bearings guarantee that effectively planetary reduction gear I, II are on same axle center.The self-lubricating of oiliness bearing guarantees that planetary reduction gear I runs well.The rotating speed that planetary gear speed reducing mechanism I is provided by planetary reduction gear is speed change once more, by planet axis II output, finish the deceleration task.
Adopt planetary gear speed reducing mechanism and dead axle line gear gearratio, the planetary gear transmission has that volume is little, in light weight, bearing capacity is big, efficient is high and advantage such as stable working.
Be embedded with oiliness bearing and needle bearing in the planetary gear respectively.The self-lubrication effect of oiliness bearing guarantees the lubricated and heat radiation of high-speed gear running.Adjustable needle bearing complementation concentricity, improved accuracy class.
Adopt permanent magnet DC motor to be because permanent magnet is set up the DC motor of excitation field, it is except the excellent mechanical properties and modulability and the speed-regulating range width that have general electromagnetic type DC motor and possessed and be convenient to the characteristics such as control, has also that volume is little, efficient is high, advantages of simple structure and simple
The reducing gear of motor is the secondary planet reducing gear, can export two kinds of moments simultaneously, improves the applicability of motor; Motor volume is little simultaneously, stable performance, and noise is little, and no-load current is little, and braking torque is big.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the annexation schematic diagram of planetary gear speed reducing mechanism I of the present invention and planetary gear speed reducing mechanism II.
Fig. 3 is the structural representation of planetary gear speed reducing mechanism I of the present invention.
Fig. 4 is the structural representation of planetary gear speed reducing mechanism II of the present invention.
Embodiment
Below by accompanying drawing the present invention is elaborated:
As shown in Figure 1, the present invention is a kind of permanent magnet double-reduction motor, comprise field frame assembly 4, rotor assembly 5 and bonnet 6, described permanent magnet double-reduction motor also comprises planetary gear speed reducing mechanism I and planetary gear speed reducing mechanism II, described rotor assembly 5 is connected with planetary gear speed reducing mechanism I by bearing pedestal 3, and planetary gear speed reducing mechanism II is arranged on the planetary gear speed reducing mechanism I.Described planetary gear speed reducing mechanism I by planet axis 2-1, fixed planet shafts 2-1 and connect simultaneously middle cover 2-3 bearing 2-7, be fixed on ring gear 2-5 in the middle cover 2-3, the fixing alignment pin 2-4 of ring gear 2-5, be located at planetary gear 2-6 and oil sealing 2-2 formation on the planet axis 2-1.Described planetary gear speed reducing mechanism II by protecgulum 1-1, be fixed at bearing I I 1-2, planet axis II 1-3, ring gear II 1-4, planetary gear II 1-5 in the protecgulum 1-1, the fixedly alignment pin II1-6 of ring gear 1-4, and jack shaft II 1-7, shaft block ring II 1-8, oiliness bearing II 1-9 constitute.Sheathed O-ring seals 8 on described middle cover 2-3.Described planetary gear II 1-5 is fixed by big end back-up ring 7.Reducing gear II and reducing gear I combine by connecting screw rod.Described field frame assembly 4 adopts permanent-magnet stator.
With rotor assembly 5, greatly hold back-up ring 7, and bearing pedestal 3, field frame assembly 4 combine with bonnet 6, it is exactly a simple DC permanent magnet direct-drive motor, it sets up excitation field by permanent magnet, have good mechanical properties and regulating characteristics that general electromagnetic type DC motor possesses, and adjustable range wide and be convenient to control; Simultaneously to adopt permanent magnetic materials to make this motor possess volume little for field frame assembly 4, the performance height, and the efficient height, simple in structure, easily manufacturedly reduce cost simultaneously.With in planetary gear speed reducing mechanism I 2 combinations, this motor just possesses the general character of reducing motor again.Again planetary gear speed reducing mechanism II 1 is made up together, be permanent magnet double-reduction motor.Planetary gear speed reducing mechanism I not only can also externally export the bigger about 10N.m of moment for planetary gear speed reducing mechanism II provides power.And planetary gear speed reducing mechanism II can export can be greater than the big moment more than the 42N.M.The advantage of Here it is secondary planet reducing gear, speed reducing ratio is big.Less planetary gear can bear bigger load and component structurals such as planet axis and gear, and volume is little, and is in light weight.Accumulate above advantage and make this motor whole simple in structure, light and handy, bearing capacity is big, efficient is high and stable working, stable performance.
See that Fig. 2, planetary gear speed reducing mechanism are that reducing gear II and reducing gear I form by two big parts, middle by the fixing planetary gear 1-5 on the reducing gear II of big end back-up ring 7; O-ring seals 8 is enclosed within on the middle cover 2-3, effectively guarantees its sealing property; With connecting screw rod reducing gear II and reducing gear I are combined and both to be the secondary planet reducing gear.
As shown in Figure 3, planetary gear speed reducing mechanism I by: planet axis I 2-1, oil sealing 2-2, middle cover 2-3, alignment pin I2-4, ring gear I 2-5, planetary gear I 2-6, bearing I 2-7 form.Bearing I 2-7 fixed planet shafts 2-1 connects middle cover 2-3 simultaneously; Alignment pin I 2-4 effectively is fixed on ring gear I 2-5 in the middle cover 2-3; Make planet axis 2-1 and ring gear 2-5 like this on an axle center.Two jack shafts be pressed together on the transverse plane of planet axis and and axis parallel, as the rotation center of two planet pinions.Two planetary gear I that assembled needle bearing are overlapped in the above, rotation by armature just passes and two planetary gear 2-6 like this, ring gear is as fixture, revolve round the sun around the axle center in the time of two planetary gear 2-6 rotations, the drive planet axis is rotated, to slow down by two planetary gears at a high speed, and finish the deceleration task and export by planet axis I 2-1.
As shown in Figure 4, planetary gear speed reducing mechanism II is made up of protecgulum 1-1, bearing I I 1-2, planet axis II 1-3, ring gear II 1-4, planetary gear II 1-5, alignment pin II 1-6, jack shaft II 1-7, shaft block ring II 1-8, oiliness bearing II 1-9.Its theory structure is all similar to planetary gear speed reducing mechanism I, and it is planetary gear speed reducing mechanism I that difference is to provide power, increases by two oiliness bearing 1-9 in addition, it guarantees that effectively planetary reduction gear I, II are on same axle center.The self-lubricating of oiliness bearing guarantees that planetary reduction gear I runs well.The rotating speed that planetary gear speed reducing mechanism I is provided by planetary reduction gear is speed change once more, by planet axis II1-3 output, finish the deceleration task.
The present invention adopts planetary gear speed reducing mechanism and dead axle line gear gearratio, and it is little that Planetary Gear Transmission has a volume, weight Gently, bearing capacity is big, efficient is high and the advantage such as stable working. Be embedded with respectively oiliness bearing and needle bearing in the planetary gear. The self-lubrication effect of oiliness bearing guarantees the lubricated and heat radiation of high-speed gear running. Adjustable needle bearing complementation with one heart Degree has improved accuracy class. Adopt permanent magnet DC motor to be because permanent magnet is set up the dc motor of excitation field, it Except having excellent mechanical properties that the moving motivation of general electromagnetic type direct current possesses and modulability and speed-regulating range width and just Outside the characteristics such as control, have also that volume is little, efficient is high, the reducing gear of advantages of simple structure and simple motor is secondary planet Reducing gear can be exported two kinds of moments simultaneously, improves the applicability of motor; Motor volume is little simultaneously, stable performance, Noise is little, and no-load current is little, and braking torque is big.
Claims (7)
1, a kind of permanent magnet double-reduction motor, comprise field frame assembly, rotor assembly one bonnet, it is characterized in that: described permanent magnet double-reduction motor also comprises nova reducing gear I and planetary gear speed reducing mechanism II, described rotor assembly is connected with planetary gear speed reducing mechanism I by bearing pedestal, and planetary gear speed reducing mechanism II is arranged on the planetary gear speed reducing mechanism I.
2, permanent magnet double-reduction motor according to claim 1, it is characterized in that: described planetary gear speed reducing mechanism I by planet axis (2-1), fixed planet shafts (2-1) and connect simultaneously middle cover (2-3) bearing (2-7), be fixed on ring gear (2-5) in the middle cover (2-3), the fixing alignment pin (2-4) of ring gear (2-5), be located at planetary gear (2-6) and oil sealing (2-2) formation on the planet axis (2-1).
3, permanent magnet double-reduction motor according to claim 1, it is characterized in that: described planetary gear speed reducing mechanism II by protecgulum (1-1), be fixed at bearing I I (1-2), planet axis II (1-3), ring gear II (1-4), planetary gear II (1-5) in the protecgulum (1-1), the fixedly alignment pin II (1-6) of ring gear (1-4), and jack shaft II (1-7), shaft block ring II (1-8), oiliness bearing II (1-9) constitute.
4, permanent magnet double-reduction motor according to claim 2 is characterized in that: go up sheathed O-ring seals (8) at described middle cover (2-3).
5, permanent magnet double-reduction motor according to claim 3 is characterized in that: described planetary gear II (1-5) is fixing by big end back-up ring (7).
6, permanent magnet double-reduction motor according to claim 1 is characterized in that: reducing gear II and reducing gear I combine by connecting screw rod.
7, permanent magnet double-reduction motor according to claim 1 is characterized in that: described field frame assembly (4) adopts permanent-magnet stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101478496A CN101552513A (en) | 2008-12-12 | 2008-12-12 | Permanent magnet double-reduction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101478496A CN101552513A (en) | 2008-12-12 | 2008-12-12 | Permanent magnet double-reduction motor |
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| Publication Number | Publication Date |
|---|---|
| CN101552513A true CN101552513A (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101478496A Pending CN101552513A (en) | 2008-12-12 | 2008-12-12 | Permanent magnet double-reduction motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865769A (en) * | 2010-05-17 | 2010-10-20 | 哈尔滨工程大学 | Serial torque loader |
| CN102457134A (en) * | 2010-10-29 | 2012-05-16 | 溧阳天力特种电机有限公司 | Permanent magnet direct current stick-type motor |
| CN104214319A (en) * | 2014-09-03 | 2014-12-17 | 梁想超 | Servomotor-speed reduction integrated mechanism |
-
2008
- 2008-12-12 CN CNA2008101478496A patent/CN101552513A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101865769A (en) * | 2010-05-17 | 2010-10-20 | 哈尔滨工程大学 | Serial torque loader |
| CN102457134A (en) * | 2010-10-29 | 2012-05-16 | 溧阳天力特种电机有限公司 | Permanent magnet direct current stick-type motor |
| CN104214319A (en) * | 2014-09-03 | 2014-12-17 | 梁想超 | Servomotor-speed reduction integrated mechanism |
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Open date: 20091007 |