CN202737607U - A motor rotor - Google Patents

A motor rotor Download PDF

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Publication number
CN202737607U
CN202737607U CN 201220405611 CN201220405611U CN202737607U CN 202737607 U CN202737607 U CN 202737607U CN 201220405611 CN201220405611 CN 201220405611 CN 201220405611 U CN201220405611 U CN 201220405611U CN 202737607 U CN202737607 U CN 202737607U
Authority
CN
China
Prior art keywords
gear
rotor
output
clutch
mechanical reduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220405611
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Chinese (zh)
Inventor
刘晓辉
陈昌
胡义明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Sinya Motor Co., Ltd.
Original Assignee
CHANGZHOU MASTER MACHINERY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHANGZHOU MASTER MACHINERY Co Ltd filed Critical CHANGZHOU MASTER MACHINERY Co Ltd
Priority to CN 201220405611 priority Critical patent/CN202737607U/en
Application granted granted Critical
Publication of CN202737607U publication Critical patent/CN202737607U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a motor rotor which comprises a rotor shell, a magnet yoke and a plurality of permanent magnetic steels, wherein the permanent magnetic steels is fixedly disposed on an outer side wall of the rotor shell in a uniformly spacing manner, the magnet yoke is disposed outside the permanent magnetic steels and is fixedly connected with the rotor shell. According to the motor rotor of the utility model, an assembling process of the permanent magnetic steels is simple, and the permanent magnetic steels can be prevented from falling off the rotor.

Description

A kind of rotor
Technical field
The utility model relates to a kind of motor component, is specifically related to a kind of rotor.
Background technology
External rotor electric machine comprises rotor and is positioned at the motor stator of rotor inboard.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 occurs, 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.
The utility model content
The purpose of this utility model provides a kind of rotor, and the assembly process of permanent magnetic steel is simple and avoid occuring obscission.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of motor with mechanical reduction gear, described motor comprises stator, rotor, output shaft, wherein: the input gear of described mechanical reduction gear by the input gear axle relatively rotor be installed on the rotor with being rotated, the output gear of described mechanical reduction gear is fixedly connected with output shaft, 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 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 NGW type mechanical reduction gear.
Certainly, mechanical reduction gear described in the utility model can also be the mechanical reduction gear of other types in the common practise, can select according to the actual requirements the type of mechanical reduction gear.
Preferably, described mechanical reduction gear comprises idler gear, input gear, the output gear of successively engagement, and described idler gear can be sleeved on the described output shaft with the relative rotation.
Preferably, described input gear comprises the first gear, the second gear; Described the first gear and described the second gear are packed in the two ends of described input gear axle, described the first gear and the engagement of described idler gear, described the second gear and the engagement of described output gear.
Preferably, described input gear is duplicate gear, and described duplicate gear is sleeved on the described input gear axle, described idler gear and described output gear respectively with the first order gear of described duplicate gear and the engagement of second level gear; Further preferably, described engagement is interior engagement or external toothing, and namely 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 axle 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 by the even compartment of terrain of yoke, and described input gear axle is inserted in the axis hole of rotor case.
But the motor inner rotor motor with mechanical reduction gear described in the utility model can be external rotor electric machine also, is not subjected to any restriction of motor type.Rotor described in the utility model 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 the stator that is subject to being positioned at its outside to its active force and the generation of obscission from the rotor case often occurs, 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 being fixed with yoke and cooperates, and 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 with of rotor case and yoke.
Preferably, for the simultaneously convenient processing that reduces production costs, described rotor case is integrated the 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 evenly spaced apart on rotor case of permanent magnetic steel.
Preferably, described rotor case is provided with the input gear axle 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, radiator structure can also be set on described rotor case and strengthen structure, its concrete shape and quantity can arrange 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 being fixedly connected with by the chase mortise matching mechanism.
Natch, when the utility model 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 formerly patent application, and application number is CN201210084877.4, open day is on August 8th, 2012, does not repeat them here.
Further preferably, the utility model also comprises clutch, in order to realize low speed output and the at a high speed conversion of output.Particularly, the function of clutch described in the utility model is when being implemented in low speed output demand, the mechanical reduction gear normal operation realizes the deceleration output of output shaft, when having high speed to export demand, by 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, realize the high speed output of output shaft, therefore the concrete installation site of clutch can be arranged on mechanical reduction gear 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 input gear and and described rotor between, be convenient to install and improve the compact conformation degree.
Clutch described in the utility model can be electromagnetic clutch mechanism or the mechanical clutch mechanism of prior art.Preferably, in order further to improve the compact conformation degree of clutch, described clutch is electromagnetic clutch mechanism; Further preferably, the installation of electromagnetic clutch mechanism is closed and is: the clutch gear ring of described electromagnetic clutch mechanism and described idler gear mesh and are in axial sliding connection; During low speed output, described clutch gear ring and described rotor are in not fastening state, and when exporting at a high speed, described clutch gear ring engages with described rotor.
Preferably, further comprise output sleeve, described output sleeve is sleeved on the described output shaft, and the idler gear of described mechanical reduction gear is fixedly connected with described output sleeve, and according to the actual requirements, output sleeve also can be used as another clutch end.
The mode that is fixedly connected with described in the utility model can be that screw fastening connects, and can be welding, comprises laser welding, or the riveted connection, interference fit or spline secure fit, or other are fixedly connected with mode.
Also need to prove, preferably, solenoid described in the utility model 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 formerly patent application CN201210084877.4, this no longer one by one literal give unnecessary details.
The utility model is fit to be applied to field of household appliances, especially be fit to be applied to the washing machine field, when the utility model is applied to the washing machine field, obtain a kind of for washing machine with the motor of mechanical reduction gear the time, output shaft described in the utility model can be used as wash shaft, and setting is sleeved on the output sleeve on the described output shaft, output sleeve is as dehydrating shaft, and the one end is fixedly connected with idler gear described in the utility model; 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 utility model, realize washing function, when at dehydration condition, mechanical reduction gear described in the utility model and rotor become the whole common High Rotation Speed 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 described output sleeve and the described rotor, particularly, when clutch is electromagnetic clutch mechanism, the clutch gear ring of described electromagnetic clutch mechanism and described output sleeve or described idler gear are by spline joint, and described clutch gear ring and described spline housing mesh and be in axial sliding connection.Further preferably, during the washing operating mode, described clutch gear ring fixedly engages with the upper end cover of described motor; During dehydration condition, described clutch gear ring engages with described rotor, forms single type of drive of washing machine.Further preferably, during the washing operating mode, described clutch gear ring is unfixing; During dehydration condition, described clutch gear ring and the engagement of described rotor, the composite power of formation washing machine (also being even power) type of drive.
Relative above-mentioned background technology, essence technology point of the present utility model is to propose first with the tooth rest of rotor as mechanical reduction gear, by the be connected cooperation of the input gear on the tooth rest with all the other mechanical reduction gear parts, and the output gear by mechanical reduction gear is fixedly connected with the deceleration output that realizes output shaft with output shaft, with respect to existing in " adopting rotor and output shaft fixed connection to be integrated; and then by mechanical reduction gear is set up output shaft to be slowed down; structure is compact not; and to take up room greatly; especially to be that axial dimension is larger ", the utility model with rotor simultaneously as one of parts of mechanical reduction gear, namely really realized the integrated of motor and mechanical reduction gear collection, greatly improved the compact conformation degree of whole driver part, minimizing takes up room, especially be axial dimension, owing to compact conformation, avoided the consumption of a large amount of connectors, thereby further reduced production cost simultaneously.
Also of particular note, field for each application of motor, the washing machine field that particularly belongs to 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 utility model proposes with the motor application of mechanical reduction gear in field of household appliances, especially for after being applied to the washing machine field, have very progressive meaning.
In addition, according to the utility model proposes the tooth rest of rotor as mechanical reduction gear, those skilled in the art can carry out the utility model combination about the technology of double-power driving structure and obtains more compact structure, takes up room littlely with existing, especially is the less novel double power washing machine Drive Structure of axial dimension.
Simultaneously, for the utility model for the dependency structure that does not carry out explanatory note on each parts, believe that such as structures such as reinforcing rib structure, connection bearing, spacing, load-bearing etc. the routine that is those skilled in the art selects, not novelty and creativeness after the utility model is combined are stated no longer one by one at this.
Description of drawings
The transmission schematic diagram of the utility model provide with motor the first embodiment of mechanical reduction gear is provided Fig. 1;
The transmission schematic diagram of the utility model provide with motor the second embodiment of mechanical reduction gear is provided Fig. 2;
The transmission schematic diagram of the utility model provide with the third embodiment of motor of mechanical reduction gear is provided Fig. 3;
The transmission schematic diagram of the utility model provide with the 4th kind of embodiment of motor of mechanical reduction gear is provided Fig. 4;
The transmission schematic diagram of the utility model provide with the 5th kind of embodiment of motor of mechanical reduction gear is provided Fig. 5;
The transmission schematic diagram of the utility model provide with the 6th kind of embodiment of motor of mechanical reduction gear is provided Fig. 6;
The transmission schematic diagram of the utility model provide with the 7th kind of embodiment of motor of mechanical reduction gear is provided Fig. 7;
The transmission schematic diagram of the utility model provide with the 8th kind of embodiment of motor of mechanical reduction gear is provided Fig. 8;
The transmission schematic diagram of the utility model provide with the 9th kind of embodiment of motor of mechanical reduction gear is provided Fig. 9;
Figure 10 is applied to the washing machine field as the perspective view of washing machine driver for the utility model provide with the 9th kind of embodiment of motor of mechanical reduction gear;
Figure 11 is the cutaway view of Figure 10;
Figure 12 is the three-dimensional part explosive view of Figure 10;
Figure 13 is the perspective view of the rotor 23 shown in Figure 10,11,12;
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 utility model provides a kind of motor with mechanical reduction gear, axial dimension is little, compact conformation, take up room little.
In order to make those skilled in the art person understand better the utility model scheme, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
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 to upper and lower waited the noun of locality herein, 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 utility model.
With reference to figure 1, Fig. 1 shows the transmission schematic diagram with motor the first embodiment of mechanical reduction gear.In this kind execution mode, should comprise motor with the motor of mechanical reduction gear, described motor is 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, is provided with a plurality of axis holes on the rotor 23, and the up and down two ends 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 by lock-screw; Above upper end cover, also be fixedly connected with mounting panel, the motor with mechanical reduction gear can be installed on the external equipment by mounting panel.
Described motor with mechanical reduction gear also comprises output shaft 11, output shaft 11 concentrics are arranged at the inside of described rotor 23, between output shaft 11 and the rotor 23 oiliness bearing can be set, output shaft 11 radially limits rotor 23, and by the relative rotation between oiliness bearing realization output shaft 11 and the rotor 23.
Described motor with mechanical reduction gear also comprises mechanical reduction gear, and described mechanical reduction gear comprises input gear axle 31, the first gear 321, the second gear 322, idler gear 331 and output gear 332; Input gear axle 31 is plugged in the axis hole of rotor 23, is provided with oiliness bearing between input gear axle 31 and the rotor 23, by realizing relative rotation between oiliness bearing input gear axle 31 and the rotor 23; The first gear 321 and the second gear 322 are packed in the two ends of input gear axle 31; The first gear 321 and idler gear 331 engagements, the second gear 322 and output gear 332 engagements.
Idler gear 331 is sleeved on the output shaft 11, and is unfixing with output shaft 11; Output gear 332 is affixed with output shaft 11, can be fixedly connected with by straight pin; Also be provided with rolling bearing between output gear 332 and the bottom end cover, can realize the relative rotation between output gear 332 and the bottom end cover, and limit simultaneously the axial of output gear 332 and move radially.
Here need to prove, can be in rotor a plurality of input gear axles of plug-in mounting and the first gear and the second gear that cooperate with it; The axis hole number of rotor is preferably 2 ~ 4, the layout of a plurality of input gear axles can so that motor and mechanical reduction gear be combined in work the time more stable; Can certainly be only on rotor gear shaft of plug-in mounting and the gear of cooperation with it.
During present embodiment work, behind the electrical power, drive motors rotor 23 rotates, drive simultaneously the input gear axle 31 that is connected with rotor 23 and the first gear 321 and 322 revolution of the second gear that are fixedly mounted with input gear axle 31, because idler gear 331 and the first gear 321 mesh and exist tooth poor, can drive simultaneously 31 rotations of input gear axle, rotate by the engagement driver output gear 332 of the second gear 322 with output gear 332, drive at last with the affixed output shaft 11 of output gear 332 and rotate; Owing to have the poor relation of tooth between the first gear 321, the second gear 322, idler gear 331 and the output gear 332, can produce speed discrepancy between output gear 332 and the rotor 23, the output of driver output axle 11 low speed.
Here need to prove that the poor relation of tooth between the first gear 321, the second gear 322, idler gear 331 and the output gear 332 can be regulated according to the required speed reducing ratio of reality and be determined.
In this kind embodiment, idler gear 331 and output gear 332 are ring gear.
With reference to figure 2, in the second embodiment, described mechanical reduction gear comprises duplicate gear 32, idler gear 331 and output gear 332; Duplicate gear 32 is sleeved on the input gear axle 31 ', idler gear 331 and output gear 332 respectively with the first order gear 321 of duplicate gear 32 and 322 engagements of second level gear; 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 and output gear 332 are external gear.
In the second embodiment, input gear axle 31 ' fixedly is inserted on the rotor 23, can relatively rotate between duplicate gear 32 and the input gear axle 31 ', when drive motors rotor 23 rotates, drive simultaneously duplicate gear 32 revolution and rotations, can reach equally the purpose that output shaft 11 low speed are exported according to first order gear 321, second level gear 322 and the idler gear 331 of duplicate gear 32, the poor relation of tooth between the output gear 332.
Certainly, also input gear axle 31 ' and rotor 23 can be rotationally connected, duplicate gear 32 is fixedly connected with input gear axle 31 ', can realize equally the output of output shaft 11 low speed.
In the second embodiment or aforementioned the first embodiment, described idler gear 331 can be external gear, also can be ring gear, described output gear 332 can be external gear, also can be ring gear, thereby make described mechanical reduction gear that following several different execution mode can be arranged.
With reference to figure 3, in the third execution mode, input gear axle 31 rotates and is plugged in the rotor 23, and the first gear 321 and the second gear 322 are packed in the two ends of input gear axle 31; Wherein, described idler gear 331 and described output gear 332 are external gear.
With reference to figure 4, in the 4th kind of execution mode, input gear axle 31 rotates and is plugged in the rotor 23, and the first gear 321 and the second gear 322 are packed in the two ends of input gear axle 31; Wherein, described idler gear 331 is ring gear, and described output gear 332 is external gear.
With reference to figure 5, in the 5th kind of execution mode, input gear axle 31 rotates and is plugged in the rotor 23, and the first gear 321 and the second gear 322 are packed in the two ends of input gear axle 31; Wherein, described idler gear 331 is external gear, and described output gear 332 is ring gear.
With reference to figure 6, in the 6th kind of execution mode, input gear axle 31 ' is fixedly connected with rotor 23, can relatively rotate between duplicate gear 32 and the input gear axle 31 ', idler gear 331 and output gear 332 respectively with the first order gear 321 of duplicate gear 32 and 322 engagements of second level gear; Wherein, described idler gear 331 is ring gear, and described output gear 332 is 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 ring gear, output gear 332 still is external gear, this is the 7th kind of execution mode, as shown in Figure 7.
The above-mentioned several execution mode in the course of the work transmission principle with the first embodiment is identical, repeats no more here.
It is pointed out that described mechanical reduction gear except above-mentioned several embodiments, can also have other embodiment certainly, as long as can realize differential reducing, make output shaft and rotor can produce speed discrepancy and get final product.
In actual the use, some external equipment requires output shaft that different rotating speeds is arranged under different operating modes, such as washing machine, needs the output of output shaft low speed under the washing operating mode, under dehydration condition, need output shaft to export at a high speed, so that washings can be fully dehydrated.In order to realize the demand of the different operating modes of external equipment, can make further improvement to above-mentioned motor with mechanical reduction gear.
Further, described motor with mechanical reduction gear also comprises clutch 4, and clutch 4 is arranged between mechanical reduction gear and the rotor 23, in order to realize low speed output and the at a high speed conversion of output.
Described clutch 4 can be electromagnetic clutch mechanism, also can be mechanical clutch mechanism.The below describes as an example of electromagnetic clutch mechanism example.
Concrete electromagnetic clutch mechanism can referring to the applicant at the disclosed electromagnetic clutch mechanism of first to file, 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 upper meshing part, and rotor is as lower meshing part.
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 the electromagnetic clutch mechanism energising, the clutch gear ring can overcome the elastic force of spring by idler gear 331 axial upward slidings, so that clutch gear ring and mounting panel engaging behind the electrical power, can realize the output of output shaft 11 low speed by mechanical reduction gear at this moment; After the electromagnetic clutch mechanism outage, under the back stretch effect of spring, the clutch gear ring is by idler gear 331 axial down slidings, so that clutch gear ring and mounting panel are thrown off, while engages with rotor 23, and the mechanical reduction gear self-locking is at this moment behind the electrical power, output shaft 11 and rotor 23 synchronized rotations realize at a high speed output.
In the course of the work, when rotor 23 and output shaft 11 rotate, can produce friction inevitably, in order to reduce friction, can between rotor 23 and output shaft 11, plane bearing be set, to slow down the pivoting friction between rotor 23 and the output shaft 11, prolong working life.
Can also make further above-mentioned motor with mechanical reduction gear and improving.
Further, described motor with mechanical reduction gear also comprises output sleeve 12, described 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, the transmission schematic diagram when Fig. 8 installs output sleeve additional for the motor with mechanical reduction gear.In this 8th kind of execution mode, mechanical reduction gear comprises the input gear axle 31 that is plugged in the rotor 23, be packed in the first gear 321 and the second gear 322, the first gears 321 and idler gear 331 engagements at input gear axle 31 two ends, the second gear 322 and output gear 332 engagements; Output gear 332 is affixed with output shaft 11; Idler gear 331 and output gear 332 are ring gear.
Idler gear 331 be fixedly connected with at output sleeve 12 1 ends; Clutch 4 is arranged between output sleeve 12 and the rotor 23, and particularly, the clutch gear ring of clutch 4 can and be in axial sliding connection with idler gear 331 engagements, also can and be in axial sliding connection by spline housing and output sleeve 12 engagements.Need to prove that the clutch gear ring is no matter be to be connected with output sleeve 12 by idler gear 331 or spline housing, under any operating mode, all mesh with idler gear 331 or spline housing and can not relatively rotate.Under clutch energising or outage effect, described clutch gear ring can engage with rotor 23 or disconnect.
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 disconnect, can make the fixture of clutch tooth circle and motor, such as the mounting panel engaging, so that the output sleeve 12 that is connected with clutch 4 is in stationary state, by mechanical reduction gear, output shaft 11 can be realized low speed output;
At this moment, the clutch tooth circle 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, namely can be realized composite power output.Here need to prove, when output shaft 11 and output sleeve 12 both can be in the same way low speed output, 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 the poor ratio of mechanical reduction gear tooth, in actual applications, can set as required the poor relation of tooth of mechanical reduction gear.
Here also need to prove, the mechanical reduction gear with the motor of mechanical reduction gear of this 8th kind of described output sleeve of execution mode can have other equally such as the embodiment of Fig. 1-7 shown in arbitrarily, specifically ring gear can be equally such as idler gear 331 and output gear 332, also external gear can be; Also can replace the first gear 321 with duplicate gear and realize identical function with the second gear 322.
Further, when this 8th kind of execution mode provide with the motor application of mechanical reduction gear in the washing machine field during as the washing machine driver, the described output shaft 11 of above execution mode can be become the wash shaft of washing machine, output sleeve 12 becomes the dehydrating shaft of washing machine, and pass through the conversion that clutch 4 is realized washing and dehydration condition, be specially:
When clutch gear ring and rotor 23 disconnect, can make the fixture of clutch tooth circle and motor, engage such as mounting panel, the output sleeve 12 that is connected with the clutch gear ring is in stationary state, pass through mechanical reduction gear, output shaft 11 can be realized low speed output, namely realizes single type of drive of washing machine; The clutch tooth circle 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, namely can realize composite power output, namely 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 with mechanical reduction gear, the utility model can also comprise the execution mode with the external rotor electric machine of mechanical reduction gear certainly, referring to Fig. 9, the transmission schematic diagram of the utility model provide with the 9th kind of embodiment of motor of mechanical reduction gear is provided Fig. 9, in this kind execution mode, should comprise motor body with the motor of mechanical reduction gear, described motor body is external rotor electric machine, specifically comprise motor stator 22 and rotor 23, rotor 23 concentrics are arranged at motor stator 22 outsides, 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 in seven kinds of the first to the in the utility model simultaneously.
Further, this the 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 eight kinds of any described variations of the first to the, 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; Equally take this 9th kind of embodiment as example, specifically can be referring to Figure 10,11,12, wherein Figure 10 is applied to the washing machine field as the perspective view of washing machine driver for the utility model provide with the 9th kind of embodiment of motor of mechanical reduction gear; 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, should comprise motor body with the motor of mechanical reduction gear, described motor body is external rotor electric machine, specifically comprises motor stator 22 and rotor 23; Rotor 23 concentrics are arranged at motor stator 22 outsides, be provided with a plurality of axis holes on the rotor 23, the top of motor stator 22 is fixedly connected with mounting panel 26 by stator mounting disc 221, the mode that is fixedly connected with can connect for screw fastening, can certainly be that other are fixedly connected with mode, motor with mechanical reduction gear can be installed on the washing machine by mounting panel 26, also motor stator 22 directly can be fixedly connected with mounting panel 26, by 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 integrated the 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 evenly spaced apart on rotor case 231 of permanent magnetic steel 233, described permanent magnetic steel location distance piece 234 is integrally formed with the rotor case while by cast aluminium; Described rotor case 231 is provided with the input gear axle 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 namely 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 present embodiment can be: first 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 being fixedly connected with yoke 232 by the chase mortise matching mechanism, can certainly adopt other to be fixedly connected with mode.
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 by the relative rotation between rotor oiliness bearing realization wash shaft 51 and the rotor 23.
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 described wash shaft 51, dehydrating shaft 52 can be rotated relatively with wash shaft 51, the quantity of described wash shaft oiliness bearing 80 can be for a plurality of, be arranged on diverse location, so that the relative rotation of dehydrating shaft 52 and wash shaft 51 is more stable.
Described washing machine driver also comprises mechanical reduction gear, and described mechanical reduction gear comprises input gear axle 31, the first gear 321, the second gear 322, idler gear 331 and output gear 332; Input gear axle 31 is plugged in the axis hole of rotor 23, is provided with oiliness bearing (scheming not shown) between input gear axle 31 and the rotor 23, by oiliness bearing so that can realize relative rotation between input gear axle 31 and the rotor 23; The first gear 321 and the second gear 322 are packed in the two ends of input gear axle 31; The first gear 321 and idler gear 331 engagements, the second gear 322 and output gear 332 engagements, idler gear 331 and output gear 332 are ring gear.
Idler gear 331 is fixedly connected with an end of described dehydrating shaft 52, and the mode of being fixedly connected with can be the fastening socket of spline, also can be that screw fastening connects, and also can be that other are fixedly connected with mode; Output gear 332 is fixedly connected with wash shaft 51, and preferably, output gear 332 is moulding, specifically carrying out injection moulding at adapter sleeve 90 obtains, adapter sleeve 90 passes through the fastening socket of spline with wash shaft 51 again, also can be that screw fastening connects, and also can be that other are fixedly connected with mode.
Here need to prove that the axis hole of rotor can be set to a plurality of, namely can be in rotor a plurality of input gear axles of plug-in mounting and the first gear and the second gear that cooperate with it; The layout of a plurality of input gear axles can so that motor and mechanical reduction gear be combined in work the time more stable, prolong working life.
Described washing machine driver also comprises clutch 4, and described clutch 4 is arranged between dehydrating shaft 52 and the rotor 23, in order to 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, 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, the clutch cover plate is positioned at the 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 and idler gear 331 mesh and be in axial sliding connection.Here need to prove, the outside of the inboard of clutch gear ring 41 and idler gear 331 is equipped with for the tooth that meshes between the two, clutch gear ring 41 and idler gear 331 all are in engagement 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, namely consist of 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 with spring (scheming not shown) in clutch gear ring 41 upper ends.
After the electromagnetic clutch mechanism energising, produce magnetic field, clutch gear ring 41 can overcome the elastic force of spring along idler gear 331 axial upward slidings, so that clutch gear ring 41 disconnects with rotor 23, at this moment behind the electrical power, can realize the output of wash shaft 51 low speed by mechanical reduction gear, realize washing function.
It is pointed out that and to realize common output and composite power (also being even power) output by the fixed form that changes clutch 4.
Particularly, when clutch gear ring 41 and rotor 23 disconnect, 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, only have wash shaft 51 low speed to be output as common washing output, be also referred to as washing machine list type of drive; When clutch gear ring 41 and rotor 23 disconnect and do not fix, the clutch gear ring 41 that fixedly do not refer to does not here engage with any parts that are in stationary state, the idler gear 331 and the dehydrating shaft 52 that namely are connected with clutch gear ring 41 also are in not stationary state, this moment is in the output of wash shaft 51 low speed, dehydrating shaft 52 is also by certain speed ratio low speed output, namely can realize composite power output, be also referred to as the even power drive mode of washing machine, here need to prove, wash shaft 51 and dehydrating shaft 52 both can with turning to low speed output, also can oppositely be exported.Wash shaft 51 is identical with turning to of dehydrating shaft 52 or opposite, depends on the positive negative value of the poor ratio of gear reduction tooth, in actual applications, can set as required the poor relation of tooth of gear reduction.
After the electromagnetic clutch mechanism outage, magnetic field disappears, under the elastic force effect of spring, clutch gear ring 41 is along idler gear 331 axial down slidings, so that clutch gear ring 41 engages with rotor 23, owing to do not produce relative rotation between clutch gear ring 41 and the idler gear 331, so this moment, idler gear 331 and the dehydrating shaft 52 that is connected with idler gear 331 and rotor 23 were 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 formerly patent application, and application number is about the related text explanation of clutch gear ring among the CN201210084877.4.
Be respectively equipped with the upper slot parts (scheming not shown) and the lower slot parts (231b) that fixedly engage with upper gear shaping and the lower 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 annexation of above-mentioned electromagnetic clutch mechanism and stator mounting disc 21 then all replaced with the annexation of electromagnetic clutch mechanism and mounting panel 26.
Need to prove simultaneously, the structures such as stator mounting disc 221 described in the utility model, mounting panel 26 and upper slot too can be referring to the applicant's formerly patent application, application number is the structural design of CN201210084877.4, can according to actual needs, also can be fixedly installed bear box etc. at mounting panel 26 equally.
The utility model also can be according to the mounting structure demand, described clutch gear ring 41 also can and be in axial sliding connection by 52 engagements of spline (being specifically as follows spline housing) and dehydrating shaft, and it is in fact identical with above-mentioned clutch gear ring 41 and function and the effect of idler gear 331.
Here also need to prove, between other driving members that also clutch 4 can be arranged on mechanical reduction gear and the rotor 23 or be set directly at the conversion that engages or disconnect to realize to wash operating mode and dehydration condition between the driving member of mechanical reduction gear; As long as the setting of clutch 4 can realize the conversion of washing of drum type washing machine 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 in the movement of its axis direction, simultaneously can also load-bearing jump ring or bearing pad be set at dehydrating shaft 52 diverse locations and realize load-bearing effect to dehydrating shaft 52.
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 the second bearing 832.
Further, between wash shaft 51 and dehydrating shaft 52, be provided with the first water seal (scheming not shown), also cry little water seal, between dehydrating shaft 52 and mounting panel 26, be provided with the second water seal 60, also cry large water seal, be used for preventing that the washing machine course of work washings from entering the washing machine internal drive.
The described clutch 4 of above embodiment is electromagnetic clutch mechanism, natch, it also can be the mechanical clutch mechanism in the common practise, believe those skilled in the art on the utility model basis, do not need to spend creative work ground mechanical clutch mechanism is substituted electromagnetic clutch mechanism.
Because above-mentioned execution mode is described for realizing the connection of each parts, load-bearing, axially with radially spacing, the used bearing of sealing function, jump ring, pad, circlip, plane bearing, packing ring, the structures such as sealing ring all belong to those skilled in the art's conventional design means, execution mode described in the utility model may 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 formerly patent application, 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 utility model obtains larger gearratio, natch, described mechanical reduction gear can also be the NGW mechanical reduction gear according to actual needs, be specifically as follows: idler gear is ring gear, the idler gear, input gear, the output gear that comprise successively engagement, described idler gear can be sleeved on the described output shaft with the relative rotation, and input gear is external gear and is sleeved on the output gear shaft.
More than the motor with mechanical reduction gear provided by the utility model is described in detail.Used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above execution mode just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection range of the utility model claim.

Claims (7)

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, it 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, it is characterized in that: described rotor case is integrated the cast aluminium structure.
4. such as 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. a kind of rotor as claimed in claim 1 or 2, it is characterized in that: described rotor case is provided with the input gear axle 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. such as 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.
CN 201220405611 2012-08-14 2012-08-14 A motor rotor Expired - Fee Related CN202737607U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102820720A (en) * 2012-08-14 2012-12-12 常州至精精机有限公司 Motor rotor and assembly method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102820720A (en) * 2012-08-14 2012-12-12 常州至精精机有限公司 Motor rotor and assembly method thereof
CN102820720B (en) * 2012-08-14 2015-06-10 常州至精精机有限公司 Motor rotor and assembly method thereof

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TR01 Transfer of patent right
TR01 Transfer of patent right

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.

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.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130213

Termination date: 20200814