CN102820720A - Motor rotor and assembly method thereof - Google Patents
Motor rotor and assembly method thereof Download PDFInfo
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- CN102820720A CN102820720A CN2012102881955A CN201210288195A CN102820720A CN 102820720 A CN102820720 A CN 102820720A CN 2012102881955 A CN2012102881955 A CN 2012102881955A CN 201210288195 A CN201210288195 A CN 201210288195A CN 102820720 A CN102820720 A CN 102820720A
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Abstract
The invention relates to a motor rotor. The rotor comprises a rotor shell, a magnetic yoke and a plurality of pieces of permanent magnet steel, wherein the pieces of permanent magnet steel are uniformly and fixedly arranged on the outer side wall of the rotor shell at intervals; and the magnetic yoke is positioned outside the pieces of permanent magnet steel and is fixedly connected with the rotor shell. The invention also relates to an assembly method of the motor rotor. The assembly method comprises the operation steps of: uniformly and fixedly adhering the pieces of permanent magnet steel to the outer side wall of the rotor shell at intervals; covering the permanent magnet steel with the magnetic yoke; and meanwhile, fixedly connecting the magnetic yoke with the rotor shell. The assembly steps of the permanent magnet steel are simple, and a phenomenon of stripping is avoided.
Description
Technical field
The present invention relates to a kind of motor component, be specifically related to a kind of rotor, the invention still further relates to the assembly method of this rotor.
Background technology
External rotor electric machine comprises the motor stator that rotor is inboard with being positioned at rotor.Described rotor generally comprises rotor case, yoke and some permanent magnetic steels, and permanent magnetic steel passes through the yoke fixed bonding on the rotor case medial surface.And in the motor actual moving process, owing to the permanent magnetic steel that is positioned at the rotor case medial surface and motor stator can produce active force serious permanent magnetic steel obscission takes place, it is comparatively loaded down with trivial details to carry out the stickup process operations of permanent magnetic steel at the rotor medial surface simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of rotor and assembly method thereof, the assembly process of permanent magnetic steel is simple and avoid taking place obscission.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of motor that has mechanical reduction gear; Described motor comprises stator, rotor, output shaft; Wherein: the input gear of described mechanical reduction gear through the input gear shaft relatively rotor be installed on the rotor with being rotated; The output gear of described mechanical reduction gear is fixedly connected with output shaft, and is radially spacing for rotor is carried out, output shaft coaxial and relatively rotor be installed on the rotor with being rotated.
Preferably, in order to obtain big speed ratio, described mechanical reduction gear is a NN type gear with small teeth difference deceleration device.
Preferably, under the prerequisite that satisfies the gearratio requirement, in order to obtain high transmission efficiency, described mechanical reduction gear is a NGW type mechanical reduction gear.
Certainly, mechanical reduction gear of the present invention can also be the mechanical reduction gear of other types in the common practise, can select the type of mechanical reduction gear according to the actual requirements.
Preferably, described mechanical reduction gear comprises idler gear, input gear, the output gear of engagement successively, and described idler gear can be sleeved on the described output shaft with the relative rotation.
Preferably, said input gear comprises first gear, second gear; Said first gear and said second gear are packed in the two ends of said input gear shaft, said first gear and the engagement of said idler gear, said second gear and the engagement of said output gear.
Preferably, said input gear is a duplicate gear, and said duplicate gear is sleeved on the said input gear shaft, said idler gear and said output gear respectively with the first order gear and the second level gears engaged of said duplicate gear; Further preferably, described engagement is interior engagement or external toothing, and promptly described idler gear and output gear can be external gears, also can be ring gear.
Preferably, described rotor is positioned at the stator inboard, and described input gear shaft is inserted in the axis hole of rotor.
Preferably, described rotor is positioned at the stator outside, comprises rotor case, yoke and some permanent magnetic steels, and some permanent magnetic steels are fixedly installed on the rotor case sidewall through the even compartment of terrain of yoke, and described input gear shaft is inserted in the axis hole of rotor case.
But the motor inner rotor motor that has mechanical reduction gear of the present invention also can be an external rotor electric machine, does not receive any restriction of motor type.Rotor of the present invention and stator structure can be any one structures of prior art simultaneously.
When being external rotor electric machine, preferably, the technical scheme of its rotor can for:
A kind of rotor; Described rotor comprises rotor case, yoke and some permanent magnetic steels; Wherein: the even compartment of terrain of described permanent magnetic steel is fixedly installed on the rotor case lateral wall, and described yoke is positioned at the permanent magnetic steel outside and is fixedly connected with rotor case.Described motor outer rotor is because between yoke and rotor case; Under the prerequisite that guarantees the motor electromagnetic performance; Prevented that effectively the permanent magnetic steel of prior art all is arranged on the medial surface of rotor case; Since receive the stator that is positioned at its outside to its active force and the generation of obscission from the rotor case often takes place, also made things convenient for the stickup process operations of permanent magnetic steel simultaneously.
Preferably, one or both ends, described rotor case side comprise the extension limit, and described extension limit can be used for carrying out secure fit with yoke, also are convenient to the stickup process operations of permanent magnetic steel simultaneously.Can certainly adopt other components to be used for being fixedly connected of rotor case and yoke.
Preferably, for the convenient simultaneously processing that reduces production costs, described rotor case is an one cast aluminium structure.
Preferably, also be integrally formed with some permanent magnetic steels location distance piece on the described rotor case lateral wall, be used for permanent magnetic steel evenly spaced apart on rotor case.
Preferably, described rotor case is provided with the input gear shaft of mechanical reduction gear and carries out the axis hole that plug-in mounting cooperates.
Preferably, the quantity of described axis hole is 1-10.
Preferably, in order to reduce motor noise, described permanent magnetic steel is near the radius of curvature of middle part, rotor case side radius of curvature greater than two ends.
Preferably, on described rotor case, radiator structure and reinforcement can also be set, its concrete shape and quantity can be provided with according to the actual requirements, believe that these all are those skilled in the art's routine selections.
Preferably, a kind of assembly method of rotor, wherein: its operating procedure is:
(1), the even compartment of terrain of permanent magnetic steel is fixedly sticked on the rotor case lateral wall;
(2), then yoke is covered the permanent magnetic steel outside, simultaneously yoke is fixedly connected with rotor case.
Preferably, described rotor case is provided with the fit structure that is fixedly connected with yoke, and yoke is provided with the fit structure that is fixedly connected with rotor case.Further, can realize both fixed connections through the chase mortise matching mechanism.
Natch; When the present invention was external rotor electric machine, the concrete structure of described rotor and motor stator also can be referring to the related text explanation of the applicant's patent application formerly, and application number is CN201210084877.4; Open day is on August 8th, 2012, repeats no more at this.
Further preferably, the present invention also comprises clutch, so that realize low speed output and the conversion of output at a high speed.Particularly; The function of clutch of the present invention is that the mechanical reduction gear operate as normal realizes the deceleration output of output shaft, when exporting demand at a high speed when being used to be implemented in low speed output demand; Through clutch mechanical reduction gear and rotor are combined into a rigid unitary; There is drive connection in each component no longer of mechanical reduction gear, realizes the high speed output of output shaft, thus the concrete installation site of clutch can be arranged on mechanical reduction gear the input gear and and described rotor between; Also can be between the input gear and output gear of mechanical reduction gear, also can be arranged on other installation sites.Again further preferably, described clutch be arranged at described mechanical reduction gear the input gear and and described rotor between, be convenient to install and improve the compact conformation degree.
Clutch of the present invention can be the electromagnetic clutch mechanism or the mechanical clutch mechanism of prior art.Preferably, in order further to improve the compact conformation degree of clutch, said clutch is an electromagnetic clutch mechanism; Further preferably, the installation of electromagnetic clutch mechanism relation is: the clutch gear ring of described electromagnetic clutch mechanism meshes and is in axial sliding connection with said idler gear; During low speed output, said clutch gear ring and said rotor are in not fastening state, and when exporting at a high speed, said clutch gear ring engages with said rotor.
Preferably, further comprise output sleeve, described output sleeve is sleeved on the described output shaft, and the idler gear of said mechanical reduction gear is fixedly connected with said output sleeve, and according to the actual requirements, output sleeve also can be used as another clutch end.
Fixed connection mode of the present invention can be that screw is fastenedly connected, and can be welding, comprises laser welding, or riveted connects interference fit or spline secure fit, or other fixed connection modes.
Also need to prove; Preferably; Solenoid of the present invention mechanism, the same or analogous concrete parts of all the other functions, and improve and optimizate scheme and all can describe referring to the related text of the applicant's the CN201210084877.4 of patent application formerly, this no longer one by one literal give unnecessary details.
The present invention is fit to be applied to field of household appliances; Especially be fit to be applied to the washing machine field; When the present invention is applied to the washing machine field, obtain a kind of be used for washing machine have the motor of mechanical reduction gear the time, output shaft of the present invention can be used as wash shaft, and is provided with and is sleeved on the output sleeve on the described output shaft; Output sleeve is as dehydrating shaft, and the one of which end is fixedly connected with idler gear of the present invention; Simultaneously for the washing operating mode that realizes washing machine and the conversion between the dehydration condition; Can be in dehydrating shaft and wash shaft, or between dehydrating shaft and rotor or the miscellaneous part clutch is set, the operation principle of described clutch is similarly: when in the washing operating mode; The normal deceleration output that realizes the output shaft (also being wash shaft) of described mechanical reduction gear of the present invention; Realize washing function, when at dehydration condition, mechanical reduction gear of the present invention and rotor become the whole common high speed rotating of a rigidity under the effect of clutch; No longer there is drive connection between the parts of described mechanical reduction gear, realizes dehydrating function.
Preferably; Described clutch is arranged between said output sleeve and the said rotor; Particularly; When clutch was electromagnetic clutch mechanism, the clutch gear ring of said electromagnetic clutch mechanism was connected through spline with said output sleeve or said idler gear, said clutch gear ring and the engagement of said spline housing and be in axial sliding connection.Further preferably, during the washing operating mode, said clutch gear ring fixedly engages with the upper end cover of said motor; During dehydration condition, said clutch gear ring engages with said rotor, forms single type of drive of washing machine.Further preferably, during the washing operating mode, said clutch gear ring is unfixing; During dehydration condition, said clutch gear ring and the engagement of said rotor, the composite power of formation washing machine (also being even power) type of drive.
Above-mentioned background is technological relatively, and essence technology point of the present invention is to propose first with the tooth rest of rotor as mechanical reduction gear, through the be connected cooperation of the input gear on the tooth rest with all the other mechanical reduction gear parts; And the output gear through mechanical reduction gear is fixedly connected the deceleration output that realizes output shaft with output shaft, with respect to existing in " adopting rotor and output shaft fixed connection is one, and then through mechanical reduction gear is set up output shaft is slowed down; structure is compactness inadequately; and take up room greatly, especially is that axial dimension is bigger ", the present invention with the rotor while as one of parts of mechanical reduction gear; Promptly really realized the integrated of motor and mechanical reduction gear collection; The compact conformation degree, the minimizing that have improved whole driver part greatly take up room, and especially are axial dimension, simultaneously because compact conformation; Avoid the consumption of a large amount of connectors, thereby further reduced production cost.
What also need specify is; For the field of each application of motor, particularly belong to the washing machine field of household electrical appliances, the compact conformation degree and the reduction that how to improve motor and deceleration device thereof take up room; The those skilled in the art always of reducing production costs again simultaneously is devoted for years to the technical problem of solution always; Therefore the motor application that has mechanical reduction gear of the present invention's proposition especially for after being applied to the washing machine field, has very progressive meaning in field of household appliances.
In addition; Propose the tooth rest of rotor according to the present invention as mechanical reduction gear; Those skilled in the art can combine to obtain more compact structure with existing technology about double dynamical Drive Structure with the present invention, it is littler to take up room, and especially is the littler novel double power washing machine Drive Structure of axial dimension.
Simultaneously; For the present invention for the dependency structure that does not carry out explanatory note on each parts; Believe that like structures such as reinforcing rib structure, connection bearing, spacing, load-bearing etc. the routine that is those skilled in the art selects; With not novelty and creativeness after the present invention combines, state no longer one by one at this.
Description of drawings
Fig. 1 is the transmission sketch map that has first kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 2 is the transmission sketch map that has second kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 3 is the transmission sketch map that has the third embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 4 is the transmission sketch map that has the 4th kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 5 is the transmission sketch map that has the 5th kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 6 is the transmission sketch map that has the 6th kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 7 is the transmission sketch map that has the 7th kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 8 is the transmission sketch map that has the 8th kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Fig. 9 is the transmission sketch map that has the 9th kind of embodiment of motor of mechanical reduction gear provided by the present invention;
Figure 10 is applied to the perspective view of washing machine field as the washing machine driver for the 9th kind of embodiment of motor that has mechanical reduction gear provided by the present invention;
Figure 11 is the cutaway view of Figure 10;
Figure 12 is the three-dimensional part explosive view of Figure 10;
Figure 13 is Figure 10,11, the perspective view of the rotor shown in 12 23;
Figure 14 is the cutaway view of Figure 13;
Figure 15 is the stereochemical structure explosive view of Figure 13.
Embodiment
Core of the present invention provides a kind of motor that has mechanical reduction gear, axial dimension is little, compact conformation, take up room little.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
It is pointed out that it is to be arranged in figure and parts position each other defines with parts among Fig. 1 to Figure 15 that relate among this paper upper and lower waited the noun of locality, just in order to explain the clear of technical scheme and conveniently.Should be appreciated that the noun of locality that this paper adopts should not limit the scope that present specification is asked for protection.
It is pointed out that function structure or member identical or that communicate indicates with identical mark in the drawings in each execution mode of the present invention.
With reference to figure 1, Fig. 1 shows the transmission sketch map of the first kind of embodiment of motor that has mechanical reduction gear.In this kind execution mode, this motor that has mechanical reduction gear comprises motor, and said motor is an inner rotor motor, specifically comprises motor housing (scheming unmarked), motor stator 22 and rotor 23; Motor stator 22 is fixed on the motor housing, and rotor 23 is coaxially installed on motor stator 22 inboards, and rotor 23 is provided with a plurality of axis holes, and the two ends up and down of rotor 23 also are provided with upper end cover and bottom end cover; Can bottom end cover, motor stator 22 and upper end cover be fixed through lock-screw; Above upper end cover, also be fixedly connected with mounting panel, can the motor that have mechanical reduction gear be installed on the external equipment through mounting panel.
The said motor that has mechanical reduction gear also comprises output shaft 11; Output shaft 11 concentrics are arranged at the inside of said rotor 23; Between output shaft 11 and the rotor 23 oiliness bearing can be set; Output shaft 11 radially limits rotor 23, and realizes the relative rotation between output shaft 11 and the rotor 23 through oiliness bearing.
The said motor that has mechanical reduction gear also comprises mechanical reduction gear, and said mechanical reduction gear comprises input gear shaft 31, first gear 321, second gear 322, idler gear 331 and output gear 332; Input gear shaft 31 is plugged in the axis hole of rotor 23, is provided with oiliness bearing between input gear shaft 31 and the rotor 23, through realizing relative rotation between oiliness bearing input gear shaft 31 and the rotor 23; First gear 321 and second gear 322 are packed in the two ends of input gear shaft 31; First gear 321 and idler gear 331 engagements, second gear 322 and output gear 332 engagements.
Here need to prove, can be in rotor a plurality of input gear shafts of plug-in mounting and first gear and second gear that cooperate with it; The axis hole number of rotor is preferably 2 ~ 4, the layout of a plurality of input gear shafts can so that motor and mechanical reduction gear be combined in work the time more stable; Can certainly be only on rotor the gear shaft of plug-in mounting and the gear of cooperation with it.
During the work of this execution mode; Behind the electrical power; Drive motors rotor 23 rotates; Drive the input gear shaft 31 that is connected with rotor 23 simultaneously and reach first gear 321 and 322 revolution of second gear that install with input gear shaft 31,, can drive 31 rotations of input gear shaft simultaneously because the idler gear 331 and first gear 321 mesh and exist tooth poor; Rotate through the engagement driving output gear 332 of second gear 322, drive at last with output gear 332 affixed output shafts 11 and rotate with output gear 332; Owing to have tooth difference relation between first gear 321, second gear 322, idler gear 331 and the output gear 332,, drive the output of output shaft 11 low speed so can produce speed discrepancy between output gear 332 and the rotor 23.
Here need to prove that the tooth difference relation between first gear 321, second gear 322, idler gear 331 and the output gear 332 can be regulated according to the required speed reducing ratio of reality and confirmed.
In this kind embodiment, idler gear 331 is ring gear with output gear 332.
With reference to figure 2, in second kind of embodiment, said mechanical reduction gear comprises duplicate gear 32, idler gear 331 and output gear 332; Duplicate gear 32 is sleeved on the input gear shaft 31 ', idler gear 331 and output gear 332 respectively with the first order gear 321 and 322 engagements of second level gear of duplicate gear 32; Idler gear 331 is sleeved on the output shaft 11, and unfixing with output shaft 11, output gear 332 is fixedly connected with output shaft 11; Wherein, idler gear 331 is external gear with output gear 332.
In second kind of embodiment; Input gear shaft 31 ' fixedly is inserted on the rotor 23; Can rotate relatively between duplicate gear 32 and the input gear shaft 31 '; When drive motors rotor 23 rotates, drive duplicate gear 32 revolution and rotations simultaneously, can reach the purpose that output shaft 11 low speed are exported equally according to first order gear 321, second level gear 322 and the idler gear 331 of duplicate gear 32, tooth difference relation between the output gear 332.
Certainly, also can input gear shaft 31 ' be rotationally connected with rotor 23, duplicate gear 32 is fixedly connected with input gear shaft 31 ', can realize the output of output shaft 11 low speed equally.
In second kind of embodiment or aforementioned first kind of embodiment; Said idler gear 331 can be external gear; Also can be ring gear; Said output gear 332 can be external gear, also can be ring gear, thereby makes said mechanical reduction gear that following several kinds of different embodiment can be arranged.
With reference to figure 3, in the third execution mode, input gear shaft 31 rotates and is plugged in the rotor 23, and first gear 321 and second gear 322 are packed in the two ends of input gear shaft 31; Wherein, said idler gear 331 is external gear with said output gear 332.
With reference to figure 4, in the 4th kind of execution mode, input gear shaft 31 rotates and is plugged in the rotor 23, and first gear 321 and second gear 322 are packed in the two ends of input gear shaft 31; Wherein, said idler gear 331 is a ring gear, and said output gear 332 is an external gear.
With reference to figure 5, in the 5th kind of execution mode, input gear shaft 31 rotates and is plugged in the rotor 23, and first gear 321 and second gear 322 are packed in the two ends of input gear shaft 31; Wherein, said idler gear 331 is an external gear, and said output gear 332 is a ring gear.
With reference to figure 6; In the 6th kind of execution mode; Input gear shaft 31 ' is fixedly connected with rotor 23; Duplicate gear 32 and input can be rotated between the gear shaft 31 ' relatively, idler gear 331 and output gear 332 respectively with the first order gear 321 and 322 engagements of second level gear of duplicate gear 32; Wherein, said idler gear 331 is a ring gear, and said output gear 332 is an external gear.
Because the number of teeth of duplicate gear 32 two-stage gears is different; So can also be with the first order gear 321 ' and output gear 332 engagements of duplicate gear 32; Second level gear 322 ' and idler gear 331 engagements, wherein idler gear 331 still is a ring gear, output gear 332 still is an external gear; This is the 7th kind of execution mode, and is as shown in Figure 7.
The above-mentioned several kinds of execution modes transmission principle with first kind of embodiment in the course of the work are identical, repeat no more here.
It is pointed out that said mechanical reduction gear except above-mentioned several kinds of embodiments, can also have other embodiment certainly,, make output shaft and rotor can produce speed discrepancy and get final product as long as can realize differential reducing.
In actual the use; Some external equipment requires output shaft that different rotating speed is arranged under different working conditions, like washing machine, under the washing operating mode, needs the output of output shaft low speed; Under dehydration condition, need output shaft to export at a high speed, make that washings can be dehydrated fully.In order to realize the demand of the different operating modes of external equipment, can make further improvement to the above-mentioned motor that has mechanical reduction gear.
Further, the said motor that has mechanical reduction gear also comprises clutch 4, and clutch 4 is arranged between mechanical reduction gear and the rotor 23, so that realize low speed output and the conversion of output at a high speed.
Said clutch 4 can be electromagnetic clutch mechanism, also can be mechanical clutch mechanism.Be that example describes with electromagnetic clutch mechanism below.
Concrete electromagnetic clutch mechanism can referring to the applicant in the disclosed electromagnetic clutch of first to file mechanism; Application number is CN201210084877.4; Simultaneously the annexation of electromagnetic clutch mechanism and miscellaneous part can for: the clutch gear ring of electromagnetic clutch mechanism can mesh and be in axial sliding connection with idler gear 331; Mounting panel is as last meshing part, and the rotor conduct is meshing part down.
Here need to prove that clutch gear ring and idler gear 331 all are in engagement under any operating mode, and can not produce relative rotation between the two.After electromagnetic clutch mechanism switched on, the elastic force that the clutch gear ring can overcome spring passed through the idler gear 331 axial slips that make progress, and makes clutch gear ring and mounting panel engage, and behind the electrical power, can pass through mechanical reduction gear realization output shaft 11 low speed and export at this moment; After the outage of electromagnetic clutch mechanism, under the back stretch effect of spring, the clutch gear ring passes through idler gear 331 axially to lower slider; Make clutch gear ring and mounting panel throw off; While engages with rotor 23, and the mechanical reduction gear self-locking is at this moment behind the electrical power; Output shaft 11 rotates with speed with rotor 23, realizes output at a high speed.
In the course of the work, when rotor 23 rotates with output shaft 11, can produce friction inevitably; In order to reduce friction; Can between rotor 23 and output shaft 11, plane bearing be set,, prolong working life to slow down the pivoting friction between rotor 23 and the output shaft 11.
Can also make improvement further to the above-mentioned motor that has mechanical reduction gear.
Further; The said motor that has mechanical reduction gear also comprises output sleeve 12; Said output sleeve 12 is sleeved on the output shaft 11, between output sleeve 12 and the output shaft 11 oiliness bearing can be set, and makes between output sleeve 12 and the output shaft 11 and can realize relative rotation.
With reference to figure 8, Fig. 8 is the motor that has the mechanical reduction gear transmission sketch map when installing output sleeve additional.In this 8th kind of execution mode; Mechanical reduction gear comprises the input gear shaft 31 that is plugged in the rotor 23; Be packed in first gear 321 and second gear, 322, the first gears 321 and idler gear 331 engagements at input gear shaft 31 two ends, second gear 322 and output gear 332 engagements; Output gear 332 is affixed with output shaft 11; Idler gear 331 is ring gear with output gear 332.
When the clutch gear ring engaged with rotor 23, idler gear 331 was locked with rotor 23, makes the mechanical reduction gear self-locking, and output shaft 11, mechanical reduction gear, output sleeve 12 and rotor 23 are exported with rotating speed.
When clutch gear ring and rotor 23 breaks off when being connected; Can make the fixture of clutch gear ring and motor,, make the output sleeve 12 that is connected with clutch 4 be in stationary state like the mounting panel engaging; Through mechanical reduction gear, output shaft 11 can be realized low speed output;
At this moment; The clutch gear ring is not engaged with the fixture of motor; Make the clutch gear ring be in not stationary state, the output sleeve 12 that is connected with the clutch gear ring also is in not stationary state, in the output of output shaft 11 low speed; Output sleeve 12 also with certain speed ratio low speed output, promptly can be realized composite power output.Here need to prove, when output shaft 11 and output sleeve 12 both can be low speed output in the same way, also can be reverse low speed output.Output shaft 11 is identical with turning to of output sleeve 12 or opposite, depends on the positive negative value of mechanical reduction gear tooth difference ratio, in practical application, can set the tooth difference relation of mechanical reduction gear as required.
Here also need to prove; The mechanical reduction gear of the motor that has mechanical reduction gear of this 8th kind of described output sleeve of execution mode can have other equally like the embodiment of Fig. 1-7 shown in arbitrarily; Specifically ring gear can be equally, also external gear can be like idler gear 331 and output gear 332; Also can replace first gear 321 and second gear, 322 realization identical functions with duplicate gear.
Further; When this 8th kind of execution mode provides the motor application that has mechanical reduction gear in the washing machine field during as the washing machine driver; Can the described output shaft 11 of above execution mode be become the wash shaft of washing machine; Output sleeve 12 becomes the dehydrating shaft of washing machine, and passes through the conversion that clutch 4 is realized washing and dehydration condition, is specially:
When clutch gear ring and rotor 23 breaks off when being connected; Can make the fixture of clutch gear ring and motor; Like the mounting panel engaging, the output sleeve 12 that is connected with the clutch gear ring is in stationary state, through mechanical reduction gear; Output shaft 11 can be realized low speed output, promptly realizes single type of drive of washing machine; The clutch gear ring is not engaged with the fixture of motor; Make the clutch gear ring be in not stationary state, the output sleeve 12 that is connected with the clutch gear ring also is in not stationary state, in the output of output shaft 11 low speed; Output sleeve 12 is also with certain speed ratio low speed output; Promptly can realize composite power output, promptly realize the even power drive mode of washing machine, realize washing function.
When the clutch gear ring of clutch 4 engaged with rotor 23, idler gear 331 was locked with rotor 23, makes the mechanical reduction gear self-locking, and output shaft 11, mechanical reduction gear, output sleeve 12 and rotor 23 are realized dehydrating function with rotating speed output.
Further; Above-mentioned execution mode is the inner rotor motor that has mechanical reduction gear, and the present invention can also comprise the execution mode of the external rotor electric machine that has mechanical reduction gear certainly, referring to Fig. 9; Fig. 9 is the transmission sketch map that has the 9th kind of embodiment of motor of mechanical reduction gear provided by the present invention; In this kind execution mode, this motor that has mechanical reduction gear comprises motor body, and said motor body is an external rotor electric machine; Specifically comprise motor stator 22 and rotor 23; Rotor 23 concentrics are arranged at motor stator 22 outsides, and all the other can be with the 8th kind of execution mode, and its described mechanical reduction gear also can be with any one execution mode among the present invention first kind to the 7th kind simultaneously.
Further; This 9th kind of embodiment and equally also can be applied to the washing machine field as the washing machine driver according to the execution mode that obtains after first kind to the 8th kind any said variation; Be the wash shaft 51 that the described output shaft 11 of embodiment is become washing machine equally, output sleeve 12 becomes the dehydrating shaft 52 of washing machine; Be example with this 9th kind of embodiment equally; Specifically can be referring to Figure 10,11,12, wherein Figure 10 is applied to the perspective view of washing machine field as the washing machine driver for the 9th kind of embodiment of motor that has mechanical reduction gear provided by the present invention; Figure 11 is the cutaway view of Figure 10; Figure 12 is the three-dimensional part explosive view (be parts and only carried out uncomplete explosion) of Figure 10; In this kind execution mode; This motor that has mechanical reduction gear comprises motor body, and said motor body is an external rotor electric machine, specifically comprises motor stator 22 and rotor 23; Rotor 23 concentrics are arranged at motor stator 22 outsides; Rotor 23 is provided with a plurality of axis holes; The top of motor stator 22 is fixedly connected with mounting panel 26 through stator mounting disc 221; The mode that is fixedly connected can be fastenedly connected for screw, can certainly be other fixed connection modes, can the motor that have mechanical reduction gear be installed on the washing machine through mounting panel 26; Also can motor stator 22 directly be fixedly connected with mounting panel 26, through mounting panel 26 above-mentioned driver be installed on the washing machine again.
Rotor 23 can be referring to Figure 13,14,15; Specifically comprise: described rotor 23 is external rotor; Specifically comprise rotor case 231, yoke 232 and some permanent magnetic steels 233; Wherein: described permanent magnetic steel 233 even compartment of terrains are fixedly installed on rotor case 231 lateral walls, and described yoke 232 is positioned at permanent magnetic steel 233 outsides and is fixedly connected with rotor case 231; Described rotor case 231 sides one end comprises extension limit 231a, and described extension limit 231a is convenient to the stickup process operations of permanent magnetic steel; Described rotor case 231 is an one cast aluminium structure; Also be integrally formed with some permanent magnetic steels location distance piece 234 on described rotor case 231 lateral walls; Be used for permanent magnetic steel 233 evenly spaced apart on rotor case 231, described permanent magnetic steel location distance piece 234 is integrally formed with the rotor case while through cast aluminium; Described rotor case 231 is provided with the input gear shaft 31 of mechanical reduction gear and carries out the axis hole 231c that plug-in mounting cooperates; The quantity of described axis hole 231c is 1-10, is preferably 25; Described permanent magnetic steel 233 promptly forms an arc-shaped convex at permanent magnetic steel 233 near middle part, rotor case 231 sides near the radius of curvature of middle part, rotor case 231 sides radius of curvature greater than two ends.The assembly method of the described rotor 23 of this execution mode can be: earlier permanent magnetic steel 233 even compartment of terrains are fixedly sticked on rotor case 231 lateral walls; Then yoke 232 is covered permanent magnetic steel 233 outsides, simultaneously yoke 232 is fixedly connected with rotor case 231.Rotor case 231 is realized both fixed connection with yoke 232 through the chase mortise matching mechanism, can certainly adopt other fixed connection modes.
The wash shaft 51 of washing machine is coaxially installed in the rotor 23; Be provided with rotor oiliness bearing (scheming not shown) between wash shaft 51 and the rotor 23; Wash shaft 51 radially limits rotor 23, and realizes the relative rotation between wash shaft 51 and the rotor 23 through the rotor oiliness bearing.
The dehydrating shaft 52 of washing machine is sleeved on the wash shaft 51; Be provided with wash shaft oiliness bearing 80 between dehydrating shaft 52 and the said wash shaft 51; Dehydrating shaft 52 and wash shaft 51 can be rotated relatively; The quantity of said wash shaft oiliness bearing 80 can be arranged on diverse location for a plurality of, makes that the relative rotation of dehydrating shaft 52 and wash shaft 51 is more stable.
Said washing machine driver also comprises mechanical reduction gear, and said mechanical reduction gear comprises input gear shaft 31, first gear 321, second gear 322, idler gear 331 and output gear 332; Input gear shaft 31 is plugged in the axis hole of rotor 23, is provided with oiliness bearing (scheming not shown) between input gear shaft 31 and the rotor 23, makes through oiliness bearing and can realize relative rotation between input gear shaft 31 and the rotor 23; First gear 321 and second gear 322 are packed in the two ends of input gear shaft 31; First gear 321 and idler gear 331 engagements, second gear 322 and output gear 332 engagements, idler gear 331 is ring gear with output gear 332.
Here need to prove that the axis hole of rotor can be set to a plurality of, promptly can be in rotor a plurality of input gear shafts of plug-in mounting and first gear and second gear that cooperate with it; The layout of a plurality of input gear shafts can so that motor and mechanical reduction gear be combined in work the time more stable, prolong working life.
Said washing machine driver also comprises clutch 4, and said clutch 4 is arranged between dehydrating shaft 52 and the rotor 23, so that realize the conversion of washing operating mode and dehydration condition.
Described solenoid mechanism comprises solenoid 42 and clutch gear ring 41; Solenoid 42 can be positioned at the inboard of clutch gear ring, also can be positioned at its outside, and described solenoid 42 can comprise coil, coil holder, coil retainer, clutch cover plate (figure does not all specifically illustrate and mark); The coil winding is on coil holder; Coil holder is positioned on the coil retainer, and the clutch cover plate is positioned at coil retainer top, the clutch cover plate be fixed in the stator mounting disc 221 after coil retainer is connected; Clutch gear ring 41 is sleeved on the idler gear 331, and clutch gear ring 41 meshes and is in axial sliding connection with idler gear 331.Here need to prove; The outside of the inboard of clutch gear ring 41 and idler gear 331 is equipped with the tooth that is used for meshing between the two; Clutch gear ring 41 all is in engagement with idler gear 331 under any operating mode, and can not produce relative rotation between the two.Described coil retainer, clutch cover plate, clutch gear ring 41 all contain permeability magnetic material, form a closed magnetic circuit between the three, promptly constitute magnetic field.Further, when stator mounting disc 221 was permeability magnetic material, stator mounting disc 221 can become the clutch cover plate simultaneously, and when stator mounting disc 221 was permeability magnetic material, the clutch cover plate was fixedly connected in the stator mounting disc 221.Preferably, be fixedly connected spring (scheming not shown) in clutch gear ring 41 upper ends.
After the energising of electromagnetic clutch mechanism, produce magnetic field; The elastic force that clutch gear ring 41 can overcome spring axially upwards slides along idler gear 331; Making clutch gear ring 41 break off with rotor 23 is connected; Behind the electrical power, can realize the output of wash shaft 51 low speed at this moment, realize washing function through mechanical reduction gear.
It is pointed out that and to realize common output and composite power (also being even power) output through the fixed form that changes clutch 4.
Particularly; When clutch gear ring 41 and rotor 23 breaks off when being connected; Clutch gear ring 41 is engaged with stator mounting disc 221; Idler gear 331 and the dehydrating shaft 52 that be connected with clutch gear ring 41 this moment are in stationary state, thereby when the washing operating mode, have only wash shaft 51 low speed to be output as common washing output, are also referred to as washing machine list type of drive; Is connected and does not fix when clutch gear ring 41 and rotor 23 breaks off; The clutch gear ring 41 that fixedly is not meant does not here engage with any parts that are in stationary state, and the idler gear 331 and the dehydrating shaft 52 that promptly are connected with clutch gear ring 41 also are in not stationary state, and this moment is in the output of wash shaft 51 low speed; Dehydrating shaft 52 is also by certain speed ratio low speed output; Promptly can realize composite power output, be also referred to as the even power drive mode of washing machine, need to prove here; Wash shaft 51 both can also can oppositely be exported with turning to low speed output with dehydrating shaft 52.Wash shaft 51 is identical with turning to of dehydrating shaft 52 or opposite, depends on the positive negative value of gear reduction tooth difference ratio, in practical application, can set the tooth difference relation of gear reduction as required.
After the outage of electromagnetic clutch mechanism; Magnetic field disappears, under the elastic force effect of spring, clutch gear ring 41 along idler gear 331 axially to lower slider; Make clutch gear ring 41 engage with rotor 23; Owing to do not produce relative rotation between clutch gear ring 41 and the idler gear 331, thus this moment idler gear 331 and the dehydrating shaft 52 and the rotor 23 that are connected with idler gear 331 locked, thereby cause the mechanical reduction gear self-locking; Wash shaft 51, mechanical reduction gear, dehydrating shaft 52 and rotor 23 same rotational speed realize dehydrating function.
The explanation of the concrete structure of described clutch gear ring 41 is referring to the applicant's patent application formerly, and application number is about the related text explanation of clutch gear ring among the CN201210084877.4.
Be respectively equipped with last slot parts (scheming not shown) and the following slot parts (231b) that fixedly engage with the last gear shaping and the following gear shaping of clutch gear ring 41 on described stator mounting disc 221 and the rotor 23.
Here need to prove also that when motor stator 22 directly was fixedly connected with mounting panel 26, the above-mentioned electromagnetic clutch mechanism and the annexation of stator mounting disc 21 then all replaced with the annexation of electromagnetic clutch mechanism and mounting panel 26.
Need to prove simultaneously; Stator mounting disc of the present invention 221, mounting panel 26 and go up structure such as slot too can be referring to the applicant's patent application formerly; Application number is the structural design of CN201210084877.4; Can also can on mounting panel 26, fixedly install bear box etc. according to actual needs equally.
The present invention also can be according to the mounting structure demand; Described clutch gear ring 41 also can and be in axial sliding connection through 52 engagements of spline (specifically can be spline housing) and dehydrating shaft, and it comes down to identical with the above-mentioned clutch gear ring 41 and the function and the effect of idler gear 331.
Here also need to prove, between other driving members that also can clutch 4 be arranged on mechanical reduction gear and the rotor 23 or be set directly at and engage between the driving member of mechanical reduction gear or break off and be connected the conversion that realizes washing operating mode and dehydration condition; As long as the setting of clutch 4 can realize the conversion of washing machine washing operating mode and dehydration condition.
Because when dehydration condition; Dehydrating shaft 52 will bear the weight of washing clothes; In order to limit moving axially of dehydrating shaft 52; Plane bearing, plain cushion and circlip (scheming all not shown) can be set between dehydrating shaft 52 and idler gear 331 limit dehydrating shaft 52, load-bearing jump ring or bearing pad can also be set on dehydrating shaft 52 diverse locations simultaneously realize load-bearing effect dehydrating shaft 52 the moving of its axis direction.
For wash shaft 51 and dehydrating shaft 52 can more stably be rotated when the dehydration condition, between dehydrating shaft 52 and mounting panel 26, be provided with clutch shaft bearing 831, between dehydrating shaft 52 and stator mounting disc 221, be provided with second bearing 832.
Further; Between wash shaft 51 and dehydrating shaft 52, be provided with first water seal (scheming not shown), also cry little water seal, between dehydrating shaft 52 and mounting panel 26, be provided with second water seal 60; Also cry big water seal, be used for preventing that the washing machine course of work washings from getting into the washing machine internal drive.
The described clutch 4 of above embodiment is electromagnetic clutch mechanism; Natch; Also can be the mechanical clutch mechanism in the common practise, believe those skilled in the art on basis of the present invention, need not spend creative work ground mechanical clutch mechanism is substituted electromagnetic clutch mechanism.
Because the described conventional design means that all belong to those skilled in the art for structures such as the connection that realizes each parts, load-bearing, axial and radially spacing, the used bearing of sealing function, jump ring, pad, circlip, plane bearing, packing ring, sealing rings of above-mentioned execution mode; Execution mode of the present invention possibly exist can not make complete disclosure to these structures; But believe that these are not possess novelty and creationary; Natch; Concrete setting also can be directly referring to the text description of the applicant's patent application formerly, application number is CN201210084877.4.
The described mechanical reduction gear of above execution mode is NN type gear with small teeth difference deceleration device simultaneously; This can be so that the present invention obtains bigger gearratio; Natch; Described according to actual needs mechanical reduction gear can also be the NGW mechanical reduction gear, specifically can for: idler gear is a ring gear, comprises successively idler gear, input gear, the output gear of engagement; Described idler gear can be sleeved on the described output shaft with the relative rotation, and the input gear is external gear and is sleeved on the output gear shaft.
More than the motor that has mechanical reduction gear provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and execution mode are set forth, the explanation of above execution mode just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection range of claim of the present invention.
Claims (9)
1. rotor; Described rotor comprises rotor case, yoke and some permanent magnetic steels; It is characterized in that: the even compartment of terrain of described permanent magnetic steel is fixedly installed on the rotor case lateral wall, and described yoke is positioned at the permanent magnetic steel outside and is fixedly connected with rotor case.
2. a kind of rotor as claimed in claim 1 is characterized in that: one or both ends, described rotor case side comprise the extension limit.
3. a kind of rotor as claimed in claim 1 is characterized in that: described rotor case is an one cast aluminium structure.
4. like claim 1 or 2 or 3 described a kind of rotors, it is characterized in that: also be integrally formed with some permanent magnetic steels location distance piece on the described rotor case lateral wall.
5. according to claim 1 or claim 2 a kind of rotor, it is characterized in that: described rotor case is provided with the input gear shaft of mechanical reduction gear and carries out the axis hole that plug-in mounting cooperates.
6. a kind of rotor as claimed in claim 5 is characterized in that: the quantity of described axis hole is 1-10.
7. like claim 1 or 2 or 6 described a kind of rotors, it is characterized in that: described permanent magnetic steel is near the radius of curvature of middle part, rotor case side radius of curvature greater than two ends.
8. assembly method like any described rotor of claim 1-7, it is characterized in that: its operating procedure is:
(1), the even compartment of terrain of permanent magnetic steel is fixedly sticked on the rotor case lateral wall;
(2), then yoke is covered the permanent magnetic steel outside, simultaneously yoke is fixedly connected with rotor case.
9. the assembly method of a rotor as claimed in claim 8, it is characterized in that: described rotor case is provided with the fit structure that is fixedly connected with yoke, and yoke is provided with the fit structure that is fixedly connected with rotor case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288195.5A CN102820720B (en) | 2012-08-14 | 2012-08-14 | Motor rotor and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210288195.5A CN102820720B (en) | 2012-08-14 | 2012-08-14 | Motor rotor and assembly method thereof |
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| CN102820720A true CN102820720A (en) | 2012-12-12 |
| CN102820720B CN102820720B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210288195.5A Expired - Fee Related CN102820720B (en) | 2012-08-14 | 2012-08-14 | Motor rotor and assembly method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103867655A (en) * | 2012-12-18 | 2014-06-18 | C.R.F.阿西安尼顾问公司 | Gear-change device for a motor vehicle |
| CN105978254A (en) * | 2016-06-29 | 2016-09-28 | 无锡新大力电机有限公司 | Magnetic steel installation technological method for permanent magnet motor |
| CN114227250A (en) * | 2021-12-29 | 2022-03-25 | 广东英达思迅智能制造有限公司 | Motor assembling machine |
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| CN102422508A (en) * | 2009-05-11 | 2012-04-18 | 移动磁体技术公司 | Three-phase electric motor with a low detent torque |
| CN202203305U (en) * | 2011-08-01 | 2012-04-25 | 台州市黄岩华阳机电科技有限公司 | Centrifugal clutch and electric car gear-shifting drive hub with the same |
| CN202737607U (en) * | 2012-08-14 | 2013-02-13 | 常州至精精机有限公司 | A motor rotor |
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| CN1154590A (en) * | 1995-12-11 | 1997-07-16 | 株式会社三叶 | Rotor of magnetic generator |
| JP2007037288A (en) * | 2005-07-27 | 2007-02-08 | Meidensha Corp | Rotor for permanent magnet type rotary electric machine and its manufacturing process |
| CN102422508A (en) * | 2009-05-11 | 2012-04-18 | 移动磁体技术公司 | Three-phase electric motor with a low detent torque |
| CN202203305U (en) * | 2011-08-01 | 2012-04-25 | 台州市黄岩华阳机电科技有限公司 | Centrifugal clutch and electric car gear-shifting drive hub with the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103867655A (en) * | 2012-12-18 | 2014-06-18 | C.R.F.阿西安尼顾问公司 | Gear-change device for a motor vehicle |
| CN105978254A (en) * | 2016-06-29 | 2016-09-28 | 无锡新大力电机有限公司 | Magnetic steel installation technological method for permanent magnet motor |
| CN114227250A (en) * | 2021-12-29 | 2022-03-25 | 广东英达思迅智能制造有限公司 | Motor assembling machine |
| CN114227250B (en) * | 2021-12-29 | 2022-07-12 | 广东英达思迅智能制造有限公司 | Motor assembling machine |
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|---|---|
| CN102820720B (en) | 2015-06-10 |
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Effective date of registration: 20170815 Address after: East West Road Luoyang town Wujin District Jiangsu city of Changzhou province No. 118 213104 Patentee after: Changzhou Sinya Motor Co., Ltd. Address before: East West Road Luoyang town Wujin District Jiangsu city of Changzhou province No. 118 213104 Patentee before: Changzhou Master Machinery Co., Ltd. |
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