CN203462303U

CN203462303U - Electromagnetic clutch device for a washing machine driving mechanism

Info

Publication number: CN203462303U
Application number: CN201320465248.6U
Authority: CN
Inventors: 刘晓辉; 胡义明; 陈昌
Original assignee: Changzhou Master Machinery Co Ltd
Current assignee: Changzhou Sinya Electromotor Co Ltd
Priority date: 2013-07-31
Filing date: 2013-07-31
Publication date: 2014-03-05
Anticipated expiration: 2023-07-31

Abstract

The utility model discloses an electromagnetic clutch device for a washing machine driving mechanism. The electromagnetic clutch device for the washing machine driving mechanism comprises a solenoid coil mechanism which is fixed inside a housing assembly and a clutch ring gear which is arranged on the inner side of the solenoid coil mechanism; the clutch ring gear is axially slidably installed on a transmission device or the outer wall of a dehydration sleeve shaft in a sleeve mode; one end of the rotator is in blocking connection with or separated from the clutch ring gear; a plurality of blocking teeth are arranged on the lower end portion of the clutch ring gear; the blocking teeth are formed by oblique tooth portions and straight tooth portions which are mutually connected; one end of the rotator is provided with a blocking groove; the blocking groove is formed by an oblique groove portion and a straight groove portion which are mutually connected; the oblique tooth portions and the straight tooth portions are in blocking connection with the oblique groove portion and the straight groove portion in a corresponding mode. The electromagnetic clutch device for the washing machine driving mechanism has the advantages of effectively guaranteeing the blocking connection between the clutch ring gear and the rotator and effectively preventing the clutch ring gear from being accidentally separated from the rotator.

Description

A kind of electromagnetic clutch device of driving mechanism for washing machine

Technical field

The utility model belongs to washing machine technical field, relates in particular to a kind of electromagnetic clutch device of driving mechanism for washing machine.

Background technology

Washing machine is to make to be attached to by chemical breakdown effect and mechanical shock effect the machine that the spot on washings is removed, and it is mainly to drive impeller to rotate by driving mechanism, stirs current and clothing and rotates, and reaches the object of washing clothes.At present the power source of conventional driving mechanism is motor, and moment when motor is rotated by the output shaft of motor passes to deceleration device, then the output shaft of deceleration device is connected with impeller, thereby drives impeller rotation.

The rotating speed of common electric machine is higher, in order to obtain suitable output speed, in actual applications, need to slow down to motor, the normal mode adopting makes motor be delivered to decelerator by one-level pulley decelerates at present, and the deceleration that one or more levels mechanical reduction gear completes a constant-speed ratio is set in decelerator.This structure is not only complicated, and it is large to take up room.In order to solve this technical problem, have at present some about removing belt pulley, motor is directly connected with decelerator, because its motor body and decelerator remain relatively independent, motor body and decelerator need to take installing space respectively, and structure is compact not, and volume is still larger.

Therefore, how designing a kind of compact conformation, the little driving mechanism for washing machine that takes up room, is the current technical issues that need to address of those skilled in the art.

In order to solve the problems of the technologies described above, the applicant in first to file multinomial patent, the formerly Chinese patent application that is CN102677427A as publication number discloses a kind of washing machine driver, comprise motor, wash shaft, be sleeved on dehydration axle sleeve and gear reduction in described wash shaft, it is inner and affixed with the output gear of described gear reduction that described wash shaft is coaxially installed on the rotor of described motor, and the input gear axle of described gear reduction is plugged in the axis hole of described rotor.Due to the input gear axle of gear reduction is inserted in the axis hole of rotor, make rotor as the tooth rest of gear reduction, effectively gear reduction and motor are become one, thereby reduced the axial dimension of washing machine driver, make the simple and compact for structure of this washing machine driver, take up room little.But this patent adopts some input gear axles are plugged in the axis hole of rotor and realize the power input to input gear, complexity and installation accuracy is installed and has relatively high expectations, more difficultly meet production technology demand, and rotational noise is larger.

For another example the formerly Chinese patent application that application number is 201310032053.7, discloses a kind of driving mechanism for washing machine, and it comprises: be used to provide rotational kinetic energy without rotating shaft rotary body; Be arranged on the speed change gear on described rotary body, for obtaining rotational kinetic energy from rotary body center position, and export the power that its rotating speed is equal to or less than described rotary body rotating speed; The wash shaft and the dehydration axle sleeve that connect described speed change gear are supplied to the described power that is equal to or less than described rotary body rotating speed respectively the washing of washing machine and the execution unit that dewaters under the effect of described speed change gear outputting power; Wherein, dehydration axle sleeve is sheathed on that wash shaft is outside to be rotationally connected with it.Driving mechanism for washing machine of the present utility model, it is arranged on speed change gear a rotating body that rotational kinetic energy is provided, and has therefore compressed the volume of whole driving mechanism, and simple in structure, compact, saves the energy, and noise is little.But the eccentric moment that departs from rotary body axis that this patent needs jockey that spur gear is obtained from eccentric bushing is converted into the moment with rotary body axis coaxle, cause that transmission efficiency is lower, energy consumption is higher and rotational noise is larger.

In sum, these of the applicant first to file with respect to prior art volume take with compact conformation degree on for washing machine driving field, brought the breakthrough of changing formula, but along with the applicant's further Application and Development is found, at the disclosed driving mechanism for washing machine of first to file, all exist complexity is installed, installation accuracy is had relatively high expectations, or transmission efficiency is lower, and the problem such as rotational noise is larger, therefore be still necessary the applicant to carry out further concrete optimization in first to file, comprise each parts of driving mechanism for washing machine are carried out to further concrete optimization.

Summary of the invention

In view of this, the purpose of this utility model is to provide a kind of electromagnetic clutch device of driving mechanism for washing machine, effectively guarantees that clutch gear ring and rotary body realize clamping smoothly, can effectively prevent the disengaging that meets accident of clutch gear ring and rotary body simultaneously.

To achieve these goals, a large amount of professional knowledges of the several years of product development based in driving mechanism for washing machine field and accumulation, simultaneously through great many of experiments, analysis with again creatively propose after the drive disk assembly of driving mechanism for washing machine, the applicant has drawn optimisation technique scheme, specifically please see below.

The technical scheme that the utility model provides is as follows:

An electromagnetic clutch device for driving mechanism for washing machine, described driving mechanism for washing machine comprises rotary body, housing unit, transmission device, electromagnetic clutch device, wash shaft and dehydration axle sleeve, described electromagnetic clutch device comprises:

Be fixed on solenoid mechanism and the clutch gear ring that is positioned at described solenoid mechanism inner side in described housing unit, described clutch gear ring be sleeved on axially slidably described transmission device or dehydration axle sleeve outer wall on, and with described rotary body one end engagement connection or disengaging;

Wherein, the bottom of described clutch gear ring is provided with some latches, described latch is comprised of interconnected helical teeth portion and straight-tooth portion, described rotary body one end is provided with draw-in groove, described draw-in groove is comprised of interconnective chute portion and straight trough portion, described helical teeth portion and straight-tooth portion and described chute portion and the corresponding engagement connection of straight trough portion difference.

Preferably, described solenoid mechanism comprises: be packed in the coil retainer in described housing unit; Be installed on the coil holder in coil retainer; Be set around the solenoid on coil holder.

Preferably, described clutch gear ring comprises: upper end connecting portion; The lower end connecting portion being connected with upper end connecting portion; Wherein, described upper end connecting portion inwall is provided with the internal spline being slidably connected with described transmission device or dehydration axle sleeve, and its outer wall is installed with magnetic conduction iron hoop; Wherein, the bottom of described lower end connecting portion is provided with some described latches.

Preferably, described upper end connecting portion and the described lower end connecting portion structure that is formed in one.

Preferably, described rotary body is without rotating shaft rotary body, and described transmission device comprises: the eccentric bushing that is fixedly connected with described rotary body and rotates around rotary body axis; Be set in the spur gear that described eccentric bushing is outside and be rotationally connected with it, for revolving round the sun around described rotary body axis along with the rotation of eccentric bushing, on the different axial locations of described spur gear, be respectively equipped with the first spur gear section and the second spur gear section; Be fixedly connected with the first output gear of described wash shaft, described the first output gear and described the first spur gear section engagement; Be fixedly connected with the second output gear of described dehydration axle sleeve, described the second output gear and described the second spur gear section engagement; Wherein, described clutch gear ring is sleeved on the outer wall of described the second output gear axially slidably.

Preferably, described the first spur gear section is the first external tooth or the first internal tooth, and described the first output gear has and the internal tooth of described the first external tooth engagement or the external tooth meshing with described the first internal tooth; Described the second spur gear section is the second external tooth or the second internal tooth, and described the second output gear has and the internal tooth of described the second external tooth engagement or the external tooth meshing with described the second internal tooth.

Preferably, described the first spur gear section is the first external tooth, and described the first output gear has internal tooth, and described the first external tooth is positioned at described internal tooth inner side, and meshes with internal tooth; Described the second spur gear section is the second internal tooth, and described the second output gear has external tooth, and described the second internal tooth is positioned at described external tooth outside, and meshes with external tooth.

Preferably, described spur gear comprises the first spur gear portion with the first spur gear section and the second spur gear portion with the second spur gear section, described the first spur gear portion is fixedly formed on described the second spur gear end surface, and described the first spur gear portion is set in described eccentric bushing outside and is rotationally connected with it.

Preferably, described the second output gear comprises connecting portion and the external gear portion being fixedly connected with, and described connecting portion is fixedly connected with dehydration axle sleeve, and is positioned at described the first output gear outside, and described external gear portion has described external tooth; Wherein, described clutch gear ring is sleeved on the outer wall of described connecting portion axially slidably.

Preferably, described rotary body is rotor or belt pulley.

Compared with prior art, the utlity model has following advantage:

1), the utility model is placed in transmission device the inside of rotary body, therefore can make full use of the space of rotary body inside, reduced the volume of driving mechanism for washing machine, thereby be beneficial to the miniaturization of washing machine;

2), the utility model using provide power without rotating shaft rotary body directly as one of parts of transmission device, and can adopt rotor without rotating shaft rotary body, also can adopt belt pulley, compacter in the structure that makes driving mechanism for washing machine, take up room less in, also reduce the consumption of a large amount of connectors, therefore further reduced the production cost of washing machine;

3), the utility model proposes a kind of spur gear of transmission device, on the different axial locations of this spur gear, there is respectively the first spur gear section and the second spur gear section, make spur gear in eccentric bushing revolution, there is engagement respectively and carry out rotation with the first output gear and the second output gear again, and then make the first output gear and the second output gear obtain reverse rotation power simultaneously, finally realize wash shaft counter-rotates with dehydration axle sleeve simultaneously, simple in structure, easy for installation, be very beneficial for scale production, the utility model has improved transmission efficiency greatly simultaneously, effectively reduce energy consumption of electrical machinery and rotational noise,

4) driving mechanism for washing machine that, the utility model provides can be adjusted according to the variation of wash load the rotating speed of wash shaft, effectively reduce washing work energy consumption, simultaneously can alleviate or eliminate being washed the damage of clothing, and the burnout failure that can avoid the motor of washing machine to cause because of overload;

5) eccentric bushing, the utility model proposes comprises installs body and eccentric body, eccentric bushing external body is rotationally connected and is set with spur gear, and rotate around rotary body eccentric axis, body is installed to be fixedly connected with rotary body, and around the rotation of rotary body axis, by the lubrication hole that takes up lubricator is set in body is installed, by mounting cover, lubrication hole is sealed simultaneously, lubricator can effectively play lubricated, antiwear function to eccentric bushing, and then the service life of effectively guaranteeing eccentric bushing;

6) the spur gear mounting structure that, the utility model provides comprises eccentric bushing and spur gear, and be provided with bearing between spur gear and eccentric bushing, and spur gear and the bearing structure that is formed in one, effectively avoided adopting the demand that exists high tolerance to coordinate of partial installation structure, greatly reduce difficulty of processing, simplified installation procedure simultaneously; The utility model further optimally, on the contact-making surface of spur gear and bearing, be provided with spur gear steel ring, spur gear adopts spur gear steel ring directly to contact with bearing, has effectively avoided when driving mechanism for washing machine work moves, bearing causes wearing and tearing to spur gear, guarantees the service life of spur gear;

7), the wash shaft mounting structure that the utility model provides comprises wash shaft, its one end is fixedly connected with washing execution unit, the other end is fixedly connected with the output gear of transmission device, simultaneously, between wash shaft and output gear, be provided with output gear steel ring, output gear steel ring inwall is fixedly connected with by interference mode with wash shaft, outer wall and the output gear structure that is formed in one, effectively avoided adopting the demand that exists high tolerance to coordinate of partial installation structure, greatly reduced difficulty of processing, simplified installation procedure simultaneously, further, output gear adopts steel ring directly to contact with wash shaft, effectively avoided when driving mechanism for washing machine work moves, bearing causes wearing and tearing to output gear, guarantee the service life of output gear,

8) the dehydration axle sleeve mounting structure that, the utility model provides comprises dehydration axle sleeve, its one end is fixedly connected with dehydration execution unit, the other end is fixedly connected with the output gear of transmission device, simultaneously, output gear comprises connecting portion and the external gear portion being fixedly connected with, and connecting portion is fixedly connected with dehydration axle sleeve, and external gear portion has external tooth, easy for installation, and compact conformation;

9), the capacitor installation structure of the PSC motor that the utility model provides comprises electric capacity installing rack and is positioned at the electric capacity of electric capacity installing rack, electric capacity is arranged on electric machine casing by electric capacity installing rack, simultaneously, electric capacity installing rack is provided with at least 1 hook and at least 1 positioning boss is installed, electric machine casing is provided with and the mouth hanging of hook location being installed coordinating, with the locating hole coordinating with positioning boss location, installation procedure is simple, effectively avoided especially adopting as the securing members such as screw are installed the easy loosening risk that produces when motor rotating operation, install reliable and stable, also effectively avoided as the consumption of the securing members such as screw simultaneously, reduced installation cost,

10) electromagnetic clutch device that, the utility model provides comprises the solenoid mechanism being fixed in housing unit and is positioned at the clutch gear ring of solenoid mechanism inner side, clutch gear ring be sleeved on axially slidably transmission device or dehydration axle sleeve outer wall on, and with rotary body one end engagement connection or disengaging; Wherein, the bottom of clutch gear ring is provided with some latches, latch is comprised of interconnected helical teeth portion and straight-tooth portion, rotary body one end is provided with draw-in groove, draw-in groove is comprised of interconnective chute portion and straight trough portion, helical teeth portion and straight-tooth portion and chute portion and straight trough portion be corresponding engagement connection respectively, and the cooperation of helical teeth portion of the present utility model and chute portion can increase clamping spigot surface greatly, and then effectively guarantees that clutch gear ring and rotary body realize clamping smoothly; The risk that exists clutch gear ring and rotary body to meet accident and depart from due to the cooperation of helical teeth portion and chute portion, especially when washing machine drives structure is braked after dehydration condition finishes, because motor brakes by counter electromotive force, very easily cause the disengaging that meets accident of clutch gear ring and rotary body, finally cause brake to be lost efficacy, so the utility model further adopt the cooperation of straight-tooth portion and straight trough portion can effectively prevent the disengaging that meets accident of clutch gear ring and rotary body;

11) between the hermetically-sealed construction rotary body that, the utility model provides and transmission device, be provided with sealing ring; Wherein, on the outer wall of transmission device, be fixed with ring gasket, sealing ring is socketed on ring gasket; Sealing ring of the present utility model can effectively prevent that current and impurity from entering transmission device, can effectively prevent the oil leakage of transmission device inside again simultaneously, the utility model further, adopt ring gasket and sealing ring to be directly socketed, when the outer wall of transmission device adopts plastic material to make, can effectively guarantee sealing effectiveness.

Accompanying drawing explanation

In order to be illustrated more clearly in the present embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the cutaway view of driving mechanism for washing machine under the utility model specific embodiment;

Fig. 2 is the perspective view of Fig. 1;

Fig. 3 is the stereo decomposing structural representation of transmission device in Fig. 1;

Fig. 4 is the stereo decomposing structural representation of motor internal rotor in Fig. 1;

Fig. 5 is the structural representation of eccentric bushing in Fig. 3;

Fig. 6 is the structural representation that Fig. 5 does not comprise the eccentric bushing of mounting cover;

Fig. 7 is spur gear mounting structure schematic diagram in Fig. 1;

Fig. 8 is wash shaft mounting structure schematic diagram in Fig. 1;

Fig. 9 is the axle sleeve mounting structure schematic diagram that dewaters in Fig. 1;

Figure 10 is the structural representation of connecting portion in Fig. 9;

Figure 11 is the capacitor installation structure schematic diagram of PSC motor in Fig. 1;

Figure 12 is the structural representation of electromagnetic clutch device in Fig. 1;

Figure 13 is A place structure enlarged diagram in Figure 12;

Figure 14 is B place structure enlarged diagram in Figure 12;

Figure 15 is the structural representation of clutch gear ring in Figure 12;

Figure 16 is sealed structural representation in Fig. 1.

The specific embodiment

The present embodiment discloses a kind of electromagnetic clutch device of driving mechanism for washing machine, driving mechanism for washing machine comprises rotary body, housing unit, transmission device, electromagnetic clutch device, wash shaft and dehydration axle sleeve, electromagnetic clutch device comprises: be fixed on solenoid mechanism and the clutch gear ring that is positioned at solenoid mechanism inner side in housing unit, clutch gear ring be sleeved on axially slidably transmission device or dehydration axle sleeve outer wall on, and with rotary body one end engagement connection or disengaging; Wherein, the bottom of clutch gear ring is provided with some latches, and latch is comprised of interconnected helical teeth portion and straight-tooth portion, and rotary body one end is provided with draw-in groove, draw-in groove is comprised of interconnective chute portion and straight trough portion, helical teeth portion and straight-tooth portion and chute portion and the corresponding engagement connection of straight trough portion difference.

The cooperation of helical teeth portion of the present utility model and chute portion can increase clamping spigot surface greatly, and then effectively guarantees that clutch gear ring and rotary body realize clamping smoothly; The risk that exists clutch gear ring and rotary body to meet accident and depart from due to the cooperation of helical teeth portion and chute portion, especially when washing machine drives structure is braked after dehydration condition finishes, because motor brakes by counter electromotive force, very easily cause the disengaging that meets accident of clutch gear ring and rotary body, finally cause brake to be lost efficacy, so the utility model further adopt the cooperation of straight-tooth portion and straight trough portion can effectively prevent the disengaging that meets accident of clutch gear ring and rotary body.

In the present embodiment, without rotating shaft rotary body, by the axis rotation around being positioned at self center, provide rotational kinetic energy, in rotary body inside, be provided with the speed change gear that the output speed of rotary body is carried out to variable-speed processing, because speed change gear is connected with rotary body, therefore in the process that speed change gear rotates around axis at rotary body, obtained rotational kinetic energy, because the eccentric bushing being connected with rotary body in speed change gear carries out eccentric rotary around rotary body axis, therefore drive other part in speed change gear also around rotary body axis, to carry out eccentric rotary, and be the power output that rotating speed is equal to or less than rotary body rotating speed by the power-conversion after eccentric rotary.Because speed change gear is connected with dehydration axle sleeve with wash shaft simultaneously, and the washing execution unit of one end of wash shaft and washing machine is (concrete as impeller or agitator, below herewith, repeat no more, not shown) be connected, dehydration axle sleeve is sheathed on wash shaft outside and is rotationally connected with it, and the dehydration execution unit of dehydration axle sleeve and washing machine is (as interior bucket, not shown) be connected, thereby under the effect of speed change gear outputting power, wash shaft and dehydration axle sleeve are supplied to respectively corresponding execution unit by the described power that is equal to or less than rotary body rotating speed, and then the washing machine that makes to be provided with driving mechanism for washing machine of the present utility model completes the function of laundry, be specially the function of washing and dehydration.

The present embodiment is placed in transmission device the inside of rotary body, therefore can make full use of the space of rotary body inside, has reduced the volume of driving mechanism for washing machine, thereby has been beneficial to the miniaturization of washing machine, simultaneously using provide power without rotating shaft rotary body directly as one of parts of transmission device, and can adopt rotor without rotating shaft rotary body, also can adopt belt pulley, compacter in the structure that makes driving mechanism for washing machine, take up room less in, also reduce the consumption of a large amount of connectors, therefore further reduced the production cost of washing machine, further importantly, the present embodiment proposes a kind of spur gear of transmission device, on the different axial locations of this spur gear, there is respectively the first spur gear section and the second spur gear section, make spur gear in eccentric bushing revolution, there is engagement respectively and carry out rotation with the first output gear and the second output gear again, and then make the first output gear and the second output gear obtain reverse rotation power simultaneously, finally realize wash shaft counter-rotates with dehydration axle sleeve simultaneously, simple in structure, easy for installation, be very beneficial for scale production, the present embodiment has improved transmission efficiency greatly simultaneously, effectively reduce energy consumption of electrical machinery and rotational noise.

In order to make those skilled in the art person understand better the technical scheme in the utility model, below in conjunction with the accompanying drawing in the present embodiment, technical scheme in the present embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the utility model protection.

Refer to Fig. 1 and Fig. 2, wherein, Fig. 1 is the cutaway view of driving mechanism for washing machine under the utility model specific embodiment, and Fig. 2 is the perspective view of Fig. 1.In a kind of specific embodiment, a kind of driving mechanism for washing machine, comprising: be used to provide rotational kinetic energy without rotating shaft rotary body; Be arranged on the speed change gear on rotary body, for obtaining rotational kinetic energy from rotary body center position, and export the power that its rotating speed is equal to or less than rotary body rotating speed; The wash shaft 500 and the dehydration axle sleeve 600 that connect speed change gear are supplied to the power that is equal to or less than rotary body rotating speed respectively the washing of washing machine and the execution unit that dewaters under the effect of speed change gear outputting power; Dehydration axle sleeve 600 is sheathed on wash shaft 500 outsides and is rotationally connected with it; For the housing unit of driving mechanism for washing machine is installed.

Wherein, speed change gear comprises transmission device 300, refers to Fig. 3, and Fig. 3 is the stereo decomposing structural representation of transmission device in Fig. 1, and transmission device 300 comprises: the eccentric bushing 310 that is fixedly connected with rotary body and rotates around rotary body axis; Be set in the spur gear 320 that eccentric bushing 310 is outside and be rotationally connected with it, for the rotation along with eccentric bushing 310, around rotary body axis, revolve round the sun, on the different axial locations of spur gear 320, be respectively equipped with the first spur gear section and the second spur gear section; Be fixedly connected with the first output gear 330, the first output gears 330 and the engagement of the first spur gear section of wash shaft 500; Be fixedly connected with the second output gear of dehydration axle sleeve 600, the second output gear and the engagement of the second spur gear section.

Particularly, the first spur gear section of the present embodiment is the first external tooth or the first internal tooth, and the first output gear has and the internal tooth of the first external tooth engagement or the external tooth meshing with the first internal tooth; The second spur gear section is the second external tooth or the second internal tooth, and the second output gear has and the internal tooth of the second external tooth engagement or the external tooth meshing with the second internal tooth.

Preferably, in the present embodiment, as shown in Figure 3, the first spur gear section is that the first external tooth 321, the first output gears 330 have internal tooth 331, the first external tooths 321 and are positioned at internal tooth 331 inner sides, and with internal tooth 331 engagements; The second spur gear section is that the second internal tooth 322, the second output gears have external tooth 351, the second internal tooths 322 and are positioned at external tooth 351 outsides, and with external tooth 351 engagements.Wherein, particularly, spur gear 320 comprises first 320a of spur gear portion with the first external tooth 321 and second 320b of spur gear portion with the second internal tooth 322, the first 320a of spur gear portion is fixedly formed on the second 320b of spur gear portion end face, the junction of the first 320a of spur gear portion and the second 320b of spur gear portion forms step (scheming unmarked), and the first 320a of spur gear portion is set in eccentric bushing 310 outsides and is rotationally connected with it; The second output gear comprises connecting portion 340 and the external gear portion 350 being fixedly connected with, connecting portion 340 is fixedly connected with dehydration axle sleeve 600, and be positioned at the first output gear 330 outsides, external gear portion 350 has external tooth 351, and external gear portion 350 is rotated freely and is arranged on eccentric bushing 310 by bearing 352.

Wherein, the rotary body of the present embodiment is rotor or belt pulley, and rotor can be motor internal rotor, can be also motor outer rotor.Preferably, rotor or belt pulley comprise: bogie; Be positioned at the cavity of bogie inside, transmission device is arranged in cavity; Eccentric bushing connects bogie and rotates around bogie axis.For the ease of understanding, in the present embodiment, the situation that is only motor internal rotor to rotary body is narrated.But be interpreted as, those skilled in the art completely can be according to the described technical scheme of the present embodiment, by the motor internal rotor described in motor outer rotor or belt pulley corresponding substitute embodiment, and, when corresponding substitute, structure of the present utility model is carried out to corresponding change and also do not there is novelty.

Wherein, the motor of the present embodiment can use various motors, such as synchronous motor, asynchronous machine, servomotor, PSC motor, BLDC motor etc.Preferably, in the present embodiment, refer to shown in Fig. 1 and Fig. 2, motor is PSC motor 100, comprising: motor stator 110, be positioned at motor internal rotor 120 and the electric capacity of motor stator 110 inside; Electric capacity is electrically connected to motor stator 110, and is arranged on housing unit.Particularly, in the present embodiment, housing unit is positioned at PSC motor 100 outsides, comprise: the tubular shell 210 of both ends open, the electric motor end cap 220 being connected with housing 210 bottoms, the mounting disc 240 that is positioned at housing 210 tops and is connected by motor bolt 230 with electric motor end cap 220, and housing 210, electric motor end cap 220 and mounting disc 240 surround one for settling the inner space of other parts such as motor stator 110 and motor internal rotor 120.Particularly, for reducing manufacturing cost, mounting disc 240 and electric motor end cap 220 adopt cast aluminium forming part, and housing 210 adopts steel part; Meanwhile, for guaranteeing installation strength, be respectively equipped with some reinforcement sheets on mounting disc 240 and electric motor end cap 220, in order to be beneficial to the heat radiation of motor 100, be provided with some louvres 213 on housing 210, electric motor end cap 220 is provided with difform heat radiation through hole.

Refer to Fig. 4, Fig. 4 is the stereo decomposing structural representation of motor internal rotor in Fig. 1.Particularly, in the present embodiment, motor internal rotor 120 comprises that bogie and the cavity 121(Fig. 1 that is located at bogie inside illustrate), wherein, bogie comprises the rotor 122 and the rotor inserts 123 that is positioned at rotor 122 of tubular, and its rotor inserts 123 comprises: the cylinder 124 of both ends open; Be positioned at the base 125 of cylinder 124 bottoms, and base 125 center offers a base plate through holes 126, the top of cylinder 124 is provided with upwardly extending draw-in groove 127.Cylinder 124 in rotor inserts 123 and base 125 are configured for installing the cavity 121 of transmission device 300 jointly, wash shaft 500 is through base plate through holes 126 center, when therefore bogie rotates, have the rotation identical with wash shaft 500, the rotation of bogie overlaps with the rotation of wash shaft 500.

Refer to Fig. 5, wherein Fig. 5 is the structural representation of eccentric bushing in Fig. 3.Eccentric bushing 310 is fixedly connected with bogie, and eccentric bushing 310 is around the rotation rotation of bogie.Eccentric bushing 310 specifically comprises: body 311 is installed, body 311 is installed and is fixedly connected with bogie, and rotate around bogie axis; The eccentric body 312 being fixedly connected with installation body 311, it is around bogie eccentric rotary, spur gear 320 is set in eccentric body 312 outsides and is rotationally connected with it, install in body 311 and eccentric body 312 and be provided with through hole 319, base plate through holes 126 coaxial lines in this through hole 319 and rotor inserts 123, wash shaft 500 is positioned at this through hole 319 coaxially, and it stretches out from the interior perforation of through hole 319.

Wherein, body 311 being installed and can being fixedly connected with for split type with eccentric body 312, can be also that integral type is fixedly connected with.For the ease of processing or installation, preferably, during processing eccentric bushing 310, body 311 is installed and is adopted integrated mode with eccentric body 312, natch, in other embodiments, also can adopt the modes such as welding to connect and be integrated, and, adding man-hour, should make to install between the center line of body 311 and the center line of eccentric body 312 and have certain eccentric throw, this eccentric throw can be taken as the poor of the radius of spur gear 320 and the first output gear 330 radiuses.

Incorporated by reference to referring to Fig. 3, shown in Fig. 4 and Fig. 5, in the present embodiment, being fixedly connected with for ease of transmitting being rigidly connected of rotation torque between eccentric bushing 310 and bogie, when concrete processing is installed, eccentric bushing 310 and the bogie structure that can be formed in one, also can adopt split type being connected, as pass through screw, the modes such as welding connect, the preferred mode structure that is formed in one, be specially: the rotor 122 of tubular adopts metal material, eccentric bushing 310 adopts metal material, using the rotor of tubular 122 and eccentric bushing 310 as injection moulding or die cast insert, put into injection mold or die casting, directly through injection moulding or die cast, the rotor 122 of tubular and eccentric bushing 310 are fixedly installed on rotor inserts 123, more preferably, in the present embodiment, adopt integrated injection molding, specifically preferably, rotor inserts 123 adopts BMC, the polyesters thermosetting plasticses such as SMC are made, more preferably, body 311 peripheries are installed and are provided with some chimeric double wedges or gomphosis groove (Fig. 5 is shown two round gomphosis grooves 313 and 6 gomphosis grooves 314), base plate through holes 126 inwalls of rotor inserts 123 are provided with the gomphosis groove that coordinates with these some chimeric double wedges or gomphosis groove or chimeric double wedge, and (Fig. 4 is shown a chimeric double wedge 126-1 of round and 6 chimeric double wedge 126-2, the chimeric double wedge of another round is not shown), body 312 is installed to be fixedly entrenched in this base plate through holes 126, thereby the adhesion while increasing eccentric bushing 310 with bogie injection moulding or die casting, simultaneously, rotor inserts 123 peripheries are provided with the embeded slot 128 chimeric with the rotor 122 of tubular, adhesion during for increasing each parts injection moulding in bogie or die casting, be easy to rigidly fixing between each parts between eccentric bushing 310 and bogie and in bogie and be connected needs, in addition, when the integrated eccentric bushing 310 of processing, at the interior formation mould of eccentric body 312 locating hole 312-1(Fig. 6, illustrate).

Please further combined with referring to Fig. 6, Fig. 6 is the structural representation that Fig. 5 does not comprise the eccentric bushing of mounting cover, further specifically preferably, in the present embodiment, eccentric bushing 310 is metallic sintered products, wherein, in installation body 311, be provided with some lubrication hole 315(Fig. 5 and be shown 6), lubrication hole 315 contains lubricator, by mounting cover 316, lubrication hole 315 is sealed, particularly, lubricator is that lubricating oil or oil are cotton, preferably, in the present embodiment, lubricator is general horse Brunswick lubricating oil.Eccentric body 312 peripheries are provided with the first eccentric step 317 and the second eccentric step 318, are respectively used to the mounting limit to spur gear 320 and external gear portion 350; The capping of seal cover 316 is provided with the protruding 316-1 with lubrication hole 315 corresponding fitted seal, effectively prevents lubricator leakage.

When bogie rotates, eccentric bushing 310 is installed body 311 by it and is fixedly entrenched in also coaxial, synchronized rotation thereupon in base plate through holes 126, thereby drives the spur gear 320 that is sleeved on eccentric body 312 outsides and is rotationally connected with it also to revolve round the sun accordingly thereupon.

Shown in Figure 7, and in conjunction with shown in Fig. 1 and Fig. 3, a kind of spur gear mounting structure of driving mechanism for washing machine, comprising: the eccentric bushing 310 that is fixedly connected with bogie and rotates around bogie axis; Spur gear 320, is set in eccentric bushing 310 outsides and is rotationally connected with it; The first output gear 330, is fixedly connected with wash shaft 500; The second output gear, is fixedly connected with dehydration axle sleeve 600.Wherein, on the different axial locations of spur gear 320, be respectively equipped with the first spur gear section and the second spur gear section.As shown in Figure 3 and Figure 7, the first spur gear section is that the first external tooth 321, the first output gears 330 have internal tooth 331, the first external tooths 321 and are positioned at internal tooth 331 inner sides, and with internal tooth 331 engagements; The second spur gear section is that the second internal tooth 322, the second output gears have external tooth 351, the second internal tooths 322 and are positioned at external tooth 351 outsides, and with external tooth 351 engagements.

Wherein, particularly, spur gear 320 comprises first 320a of spur gear portion with the first external tooth 321 and second 320b of spur gear portion with the second internal tooth 322, the first 320a of spur gear portion is fixedly formed on the second 320b of spur gear portion end face, the junction of the first 320a of spur gear portion and the second 320b of spur gear portion forms step, and the first 320a of spur gear portion is set in eccentric bushing 310 outsides and is rotationally connected with it; The second output gear comprises connecting portion 340 and the external gear portion 350 being fixedly connected with, connecting portion 340 is fixedly connected with dehydration axle sleeve 600, and be positioned at the first output gear 330 outsides, external gear portion 350 has external tooth 351 and is step-like end face 354 with relative external tooth 351, the inwall of external gear portion 350 is provided with bearing mounting groove 355 simultaneously, bearing 352 is positioned at this bearing mounting groove 355, and external gear portion 350 is rotated freely and is arranged on eccentric bushing 310 by bearing 352.

Wherein, preferably, in the present embodiment, spur gear 320 adopts plastic material integrated injection molding, natch, also can adopt metal material to make, particularly, for realizing relatively rotating between eccentric bushing 310 and spur gear 320, be connected, between spur gear 320 and eccentric bushing 310, be provided with bearing 360, spur gear 320 and bearing 360 structure that is formed in one, preferably, spur gear 320 is provided with spur gear steel ring 323 with the contact-making surface of bearing 360, when concrete processing spur gear 320, spur gear steel ring 323 and bearing 360 are as injection moulding inserts, put into injection mold, final processing injection moulding obtains the spur gear 320 and bearing 360 of integrated formed structure.Particularly, bearing 360 is deep groove ball bearing, natch, also can adopt other types bearing, for guaranteeing the intensity of spur gear 320, the junction step medial surface between the first 320a of spur gear portion and the second 320b of spur gear portion is provided with some reinforcement sheet 370(Fig. 3 and illustrates).

Shown in Figure 8, and in conjunction with referring to Fig. 1 and Fig. 3, a kind of wash shaft mounting structure of driving mechanism for washing machine, comprising: wash shaft 500, its one end is fixedly connected with washing execution unit, and the other end is fixedly connected with the first output gear 330 of transmission device; Wherein, preferably, in the present embodiment, the first output gear 330 adopts plastic material integrated injection molding, natch, in other embodiments, also can adopt metal material to make; Between wash shaft 500 and the first output gear 330, be provided with output gear steel ring 332, output gear steel ring 332 inwalls are fixedly connected with by interference mode with wash shaft 500, its outer wall and the first output gear 330 structure that is formed in one, when concrete processing the first output gear 330, output gear steel ring 332 is as injection moulding inserts, put into injection mold, finally process the first output gear 330 and output gear steel ring 332 that injection moulding obtains integrated formed structure.Specifically preferably, in order to increase the inlay resultant force between output gear steel ring 332 and the first output gear 330, output gear steel ring 332 outer walls are provided with fitting portion 333, fitting portion 333 one embed the upper end of the first output gear 330, fitting portion 333 is step surface, further comprises that some embedded hole 334(Fig. 8 are shown 12 on step surface), for guaranteeing the intensity of the first output gear 330, surrounding at internal tooth 331 is provided with some reinforcement sheets (Fig. 3 illustrates, but unmarked).

Shown in Figure 9, and in conjunction with referring to Fig. 1 and Fig. 3, a kind of dehydration axle sleeve mounting structure of driving mechanism for washing machine, comprising: dehydration axle sleeve 600, its one end is fixedly connected with the execution unit that dewaters, and the other end is fixedly connected with the second output gear of transmission device; The second output gear comprises connecting portion 340 and the external gear portion 350 being fixedly connected with, and connecting portion 340 is fixedly connected with dehydration axle sleeve 600, and external gear portion 350 has external tooth 351;

Wherein, preferably, in the present embodiment, connecting portion 340 and external gear portion 350 all adopt plastic material integrated injection molding, natch, in other embodiments, also can adopt respectively metal material to make, and also can adopt respectively split fixing mechanism; This connecting portion 340 comprises connecting portion 341 and the lower connecting portion 342 that is arranged on its lower end and is fixedly connected with it.Please further combined with shown in Figure 10, upper connecting portion 341 medial surfaces are provided with the some double wedges 345 that distribute vertically, dehydration axle sleeve 600 lateral surfaces are provided with the be fixedly connected with groove 610 that coordinate corresponding to this double wedge 345, thereby connecting portion 340 is connected with 600 fixed installations of dehydration axle sleeve; In other embodiments, can certainly adopt the upper connecting portion 341 that metal material is made to realize and being rigidly connected with dehydration axle sleeve 600 by laser weld or other modes; Upper connecting portion 341 lateral surfaces (being its outer wall) are also provided with the external splines 343 distributing vertically.

And lower connecting portion 342 is tubular structure, its top and upper connecting portion 341 are connected.External gear portion 350 end faces are provided with some draw-in groove 353(Fig. 9 and are shown 6), lower connecting portion 342 bottoms are provided with the latch 340-1 fixedly engaging with draw-in groove 353, thereby realize, connecting portion 340 and external gear portion 350 are fixed to connection; And the junction between lower connecting portion 342 and upper connecting portion 341 is also provided with a plurality of

reinforcements

344, and 344 of adjacent reinforcements, is also provided with a plurality of for settling the boss with holes 346 of Compress Spring 430.In order to improve the intensity of external gear portion 350, on external gear portion 350 end faces, be also provided with some reinforcement sheets (Fig. 3 illustrates, but unmarked).

When eccentric bushing 310 rotation, be sleeved on eccentric body 312 spur gear 320 outside and that be rotationally connected with it and under it drives, carry out the revolution of identical direction of rotation with it, and because the centreline spacing of the installation body 311 in eccentric bushing 310 and eccentric body 312 has certain eccentric throw, and rotation and bogie dead in line that body 311 is installed, therefore when spur gear 320 revolution, be actually and carrying out eccentric rotation around bogie axis.

When spur gear 320 is carrying out in revolution process (carrying out eccentric rotary around bogie axis), internal tooth 331 engagements due to its first external tooth 321 and the first output gear 330, its second internal tooth 322 meshes with the external tooth 351 of external gear portion 350, thereby under the interaction force of this gear teeth meshing, make spur gear 320 produce rotation, and direction of rotation now and the opposite direction of its revolution therefore can pass to its rotary power the first output gear 330 and the second output gear simultaneously.Further particularly, owing to all there being the poor relation of tooth between the first external tooth 321 and internal tooth 331 and between the second internal tooth 322 and external tooth 351, therefore make spur gear 320 can produce speed difference when rotation and revolution, be the speed of time rotational lower than the speed in when revolution, thereby make the rotating speed of its output lower than the rotating speed of bogie.Accordingly, owing to all having interaction force between the first output gear 330, the second output gear and spur gear 320, therefore the first output gear 330 and the second output gear all can be rotated at spur gear 320 time rotationals, and the direction of rotation of the first output gear 330 is contrary with the direction of rotation of the second output gear, simultaneously the rotary speed of the first output gear 330 and the rotary speed of the second output gear are all lower than the rotating speed of bogie.

To sum up, spur gear 320 passes through under the first output gear 330 of gear teeth meshing and the comprehensive function power of the second output gear at the eccentric bushing 310 rotating with it, revolve round the sun and rotation simultaneously, and the direction of its rotation and revolution opposite direction, the rotating speed of time rotational is lower than the rotating speed of bogie; And the first output gear 330 and the second output gear be also under the effect of respective action power, carry out respectively contrary and the rotatablely moving lower than bogie rotating speed of relative direction of rotation.Again because the first output gear 330 is fixedly connected with wash shaft 500, the second output gear is fixedly connected with dehydration axle sleeve 600, therefore, synchronously, wash shaft 500 is carried out respectively relative direction of rotation on the contrary and rotatablely moving lower than bogie rotating speed with dehydration axle sleeve 600.

Shown in Figure 11, a kind of capacitor installation structure of PSC motor, comprises electric capacity installing rack 140 and is encapsulated in the electric capacity (scheming not shown) in electric capacity installing rack 140, electric capacity is arranged on housing 210 by electric capacity installing rack 140; Wherein, electric capacity installing rack 140 is provided with 4 141 and 1 positioning boss 142 of hook is installed; Housing 210 is provided with hook 141 is installed and locates 4 mouth hangings 211 that coordinate, and 1 locating hole 212 coordinating with positioning boss 142 location.

Specifically preferably, electric capacity installing rack 140 comprises installed surface 143 and has the support body 144 of inner space, installed surface 143 is fixedly connected with support body 144, and electric capacity is arranged in the inner space of support body 144, and installed surface 143 is provided with 4 141 and 1 positioning boss 142 of hook are installed; On installed surface 143, be also provided with variant part 145, variant part 145 and installed surface 143 structure that is formed in one.Wherein, form the first opening 146 and the second opening 147 between variant part 145 both sides and installed surface 143, positioning boss 142 is arranged on variant part 145, and variant part 145 one end are fixedly installed on installed surface 143, other end rotation deformation.Preferably, in order to ensure the efficiently radiates heat of electric capacity, between installed surface 143 and support body 144, be provided with radiating part 149, particularly, installed surface 143 is connected by some fillets 148 with support body 144, and the space between fillet 148 forms radiating part 149.In addition, in this real mode, further preferably, in the end of variant part 145, be provided with dismounting groove (scheming not shown), be convenient to follow-up dismounting.Particularly, in the present embodiment, variant part 145 adopts elastoplast to make.

Preferably, considering that electric capacity surprisingly burns when on fire can splash and cause possible security incident, on electric motor end cap 220, being fixed with extension 221(Fig. 2 illustrates), extension 221 is positioned at the below of electric capacity installing rack 140, can be used for taking up electric capacity and surprisingly burn the splash producing when on fire, effectively avoid security incident to occur.

When starting to install, hook 141 is installed and is arranged on mouth hanging 211 places, use external force to make variant part 145 distortion simultaneously, and make to install hook 141 down slidings, when the positioning boss 142 on variant part 145 slides to locating hole 212 and coordinates with locating hole 212 location, variant part 145 recovers deformation, now installation hook 141 completes to locate with mouth hanging 211 and coordinates, positioning boss 142 coordinates with locating hole 212 location, can effectively prevent from installing hook 141 comes off, install very convenient, effectively avoided especially adopting as the securing members such as screw are installed the easy loosening risk that produces when motor rotating operation, install reliable and stable, also effectively avoided as the consumption of the securing members such as screw simultaneously, reduced installation cost.

Because washing machine has different operating modes when working, comprise washing operating mode and dehydration condition, thereby need to need to regulate according to the difference of each operating mode the output speed of speed change gear, as when washing operating mode, the output speed that needs speed change gear is low speed, and when dehydration condition, the output speed that needs speed change gear is high speed.Therefore in the present embodiment, speed change gear also comprises: the electromagnetic clutch device 400 that is arranged at housing unit inside, electromagnetic clutch device comprises the solenoid mechanism being fixed in housing unit and is positioned at the clutch gear ring of solenoid mechanism inner side, clutch gear ring is sleeved on the outer wall of connecting portion 341 axially slidably, by endwisely slipping, carries out engagement connection or disengaging with the draw-in groove 127 of being located at cylinder 124 tops in rotor inserts 123.

As shown in Figure 1, electromagnetic clutch device 400 comprises the solenoid mechanism 410 being fixed in housing unit and the clutch gear ring 420 that is positioned at solenoid mechanism 410 inner sides.Particularly, please with further reference to shown in Figure 12, Figure 13, Figure 14 and Figure 15, solenoid mechanism 410 comprises: be packed in the coil retainer 411(of mounting disc 240 lower surfaces as shown in figure 12, specifically by upper cover plate and lower cover, by screw, be composed of a fixed connection); Be installed on the coil holder 412 in coil retainer 411; Be set around the solenoid 413 on coil holder 412.For the ease of processing or installation, clutch gear ring 420 comprises: upper end connecting portion 421; The lower end connecting portion 422 being connected with upper end connecting portion 421; Wherein, upper end connecting portion 421 inwalls be provided with upper connecting portion 341 outer walls on the internal spline 423 that is slidably connected of external splines 343, its outer wall is installed with magnetic conduction iron hoop 424, magnetic conduction iron hoop 424 and coil retainer 411 all adopt permeability magnetic material to make, and form closed magnetic circuit to produce magneticaction with solenoid 413 threes; When processing clutch gear ring 420, upper end connecting portion 421 is formed in one or split fixed connection structure with lower end connecting portion 422, preferably, upper end connecting portion 421 and lower end connecting portion 422 structure that is formed in one, more preferably, be integrated injection mo(u)lding structure, wherein, magnetic conduction iron hoop 424 is as injection moulding inserts, magnetic conduction iron hoop 424 is positioned in injection moulding grinding tool, finally processes injection moulding and obtain clutch gear ring 420, further preferably, at the surrounding position of lower end connecting portion 422, be provided with some material reducing grooves 426, to reduce manufacturing cost.

Wherein, the bottom of lower end connecting portion 422 is provided with the some latches 425 to downward-extension, latch 425 is comprised of the interconnected helical teeth 425a of portion and the 425b of straight-tooth portion, draw-in groove 127 is comprised of interconnective chute portion 127a and the 127b of straight trough portion, the 425a of helical teeth portion and the 425b of straight-tooth portion and chute portion 127a and the corresponding engagement connection of the 127b of straight trough portion difference.Clutch gear ring 420 is sleeved on the outer wall of connecting portion 341 axially slidably, and endwisely slip along the external splines 343 on its outer wall, the draw-in groove 127 of being located at cylinder 124 tops in latch 425 realizations of lower end connecting portion 422 bottoms and bogie carries out engagement connection or disengaging, thereby makes speed change gear carry out high speed or low-speed motion.

Smooth engagement connection or disengaging in order to ensure the cylinder 124 in clutch gear ring 420 and rotor inserts 123, preferably, the present embodiment is provided with Compress Spring 430 between clutch gear ring 420 and the connecting portion 340 of the second output gear, and Compress Spring 430 is sheathed to be placed on the boss with holes 346 of connecting portion 340.

The electromagnetic clutch device 400 of the present embodiment enters washing operating mode when solenoid 413 energising, during power-off, enter dehydration condition, also just can when solenoid 413 energising, enter dehydration condition, during power-off, enter washing operating mode, length consuming time due to washing operating mode, the time of dehydration condition is short, for the amount of saving energy, complete under the prerequisite of identical workload simultaneously, effectively reduce the working time of electromagnetic clutch device 400, and then the service life of effectively improving electromagnetic clutch device 400, preferably, in the present embodiment, electromagnetic clutch device 400 enters dehydration condition when solenoid 413 energising, during power-off, enter washing operating mode.The electromagnetic clutch device 400 of the present embodiment produces magnetic field repulsive force or magnetic attraction when solenoid 413 energising, preferably, installation for the ease of electromagnetic clutch device 400, the electromagnetic clutch device 400 of the present embodiment produces magnetic field repulsive force when solenoid 413 energising, and specific works process is:

When solenoid 413 energising, under the effect of the magnetic field of solenoid mechanism 410 repulsive force, magnetic conduction iron hoop 424 is moved downward so that away from solenoid mechanism 410, and magnetic conduction iron hoop 424 is connected with the upper end connecting portion 421 of clutch gear ring, thereby under the drive of magnetic conduction iron hoop 424, make whole clutch gear ring 420 along the outer wall down sliding of upper connecting portion 341 until the latch 425 of lower end connecting portion 422 bottoms of clutch gear ring 420 carries out engagement connection with the draw-in groove 127 on bogie, therefore, the second output gear obtains the rotating speed identical with bogie, and make transmission device 300 in locking state, on the contrary, when solenoid 413 power-off, clutch gear ring 420 is under the effect of the sheathed restoring force that is placed in the Compress Spring 430 on connecting portion 340, along the outer wall upward sliding of upper connecting portion 341, until the latch 425 of lower end connecting portion 422 bottoms of clutch gear ring 420 departs from the draw-in groove 127 on bogie, and then make transmission device 300 enter duty.

To thering is the washing machine of the present embodiment driving mechanism for washing machine, in the course of work of dewatering and wash in operating mode situation, specifically narrate below.

Dehydration condition: when washings is dewatered, now 413 energisings of the solenoid in electromagnetic clutch device 400, coil retainer 411, magnetic conduction iron hoop 424 triple interactions of solenoid 413 and clutch gear ring 420 can form a closed magnetic circuit, produce electromagnetic repulsive force, now clutch gear ring 420 under the effect of this electromagnetic repulsive force along on the outer wall of connecting portion 341 endwisely slip downwards (in as Fig. 1 downward direction), and clutch gear ring 420 is by Compress Spring 430 compressions in the process of endwisely slipping, and make the latch 425 of lower end connecting portion 422 bottoms of clutch gear ring carry out engagement connection with the draw-in groove 127 on bogie, thereby clutch gear ring 420 and bogie are connected as one, and then the axle sleeve 600 that makes to dewater connects as one with bogie, and the axle sleeve that makes to dewater obtains the rotating speed identical with bogie, now whole transmission device 300 is in locking state, therefore whole transmission device 300 is along with bogie runs up together, and then the wash shaft that drive and transmission device 300 are connected is also carried out High Rotation Speed in company with bogie, realization is dewatered to washings.

Washing operating mode: when washings is washed, now solenoid 413 power-off in electromagnetic clutch device 400, coil retainer 411, the closed magnetic circuit forming between solenoid 413 and clutch gear ring 420 disappears, clutch gear ring 420 is no longer subject to the effect of electromagnetic repulsive force, therefore under the compression reaction power effect of Compress Spring 430, clutch gear ring 420 upwards endwisely slips along the outer wall of upper connecting portion 341, thereby the latch 425 of the lower end connecting portion 422 of clutch gear ring 420 is departed from the draw-in groove 127 on bogie, and then make the transmission device in speed change gear enter duty:

When bogie is during around bogie axis (being wash shaft axis) High Rotation Speed, drive the eccentric bushing being connected with it around wash shaft axis, to carry out High Rotation Speed with the bogie speed identical with it, and the High Rotation Speed of eccentric bushing drives spur gear to carry out eccentric high speed revolution around wash shaft axis, when spur gear carries out in eccentric high speed revolution process around wash shaft axis, internal tooth 331 engagements due to its first external tooth 321 and the first output gear 330, its second internal tooth 322 meshes with the external tooth 351 of external gear portion 350, thereby under the interaction force of this gear teeth meshing, make spur gear 320 produce rotation, and direction of rotation now and the opposite direction of its revolution, therefore its rotary power can be passed to simultaneously to the first output gear 330 and the second output gear.Further particularly, owing to all there being the poor relation of tooth between the first external tooth 321 and internal tooth 331 and between the second internal tooth 322 and external tooth 351, therefore make spur gear 320 can produce speed difference when rotation and revolution, be the speed of time rotational lower than the speed in when revolution, thereby make the rotating speed of its output lower than the rotating speed of bogie.Accordingly, owing to all having interaction force between the first output gear 330, the second output gear and spur gear 320, therefore the first output gear 330 and the second output gear all can be rotated at spur gear 320 time rotationals, and the direction of rotation of the first output gear 330 is contrary with the direction of rotation of the second output gear, simultaneously the rotary speed of the first output gear 330 and the rotary speed of the second output gear are all lower than the rotating speed of bogie.Again because the first output gear 330 is fixedly connected with wash shaft 500, the second output gear is fixedly connected with dehydration axle sleeve 600, therefore, synchronously, it is contrary and lower than the rotatablely moving of bogie rotating speed that wash shaft 500 and dehydration axle sleeve 600 carry out respectively relative direction of rotation, realizes washings is washed.

Due to during washing operating mode, dehydration axle sleeve 600 is in stationary state not, and therefore, during wash shaft 500 rotations, wash shaft 500 is delivered to the first output gear 330 wash load to its reaction force, and first output gear 330 wash load reaction force is imposed on to the second output gear by the engaging structure with spur gear 320, change the interaction of the first output gear 330 and the second output gear, the rotary speed of the first output gear 330 and the second output gear is changed along with the variation of wash load, that is to say, the rotary speed of wash shaft 500 and dehydration axle sleeve 600 changes along with the variation of wash load, thereby solved the difficult problem that dehydration axle sleeve need be fixed in prior art and need to consume mass energy when washing operating mode, therefore effectively reduce washing work energy consumption, can alleviate or eliminate being washed the damage of clothing simultaneously, and the burnout failure that the motor that can avoid washing machine causes because of overload.

Shown in Figure 16, and in conjunction with referring to Fig. 1 and Fig. 3, a kind of hermetically-sealed construction of driving mechanism for washing machine, refers between cylinder 124 inwalls of rotor inserts 123 and the outer wall of the lower connecting portion 342 of connecting portion 340 and is provided with sealing ring 700, particularly, sealing ring 700 adopts elastic rubber material to make, wherein, on the outer wall of the lower connecting portion 342 of connecting portion 340, be fixed with ring gasket 710, sealing ring 700 is socketed on ring gasket 710, particularly, ring gasket 710 and lower connecting portion 342 can be formed in one structure or Split connection structure, preferably, in the present embodiment, ring gasket 710 and lower connecting portion 342 structure that is formed in one, particularly, the connecting portion 340 that includes connecting portion 341 and lower connecting portion 342 adopts integrated injection molding, specifically adding man-hour, ring gasket 710 is as injection moulding inserts, the outer wall of lower connecting portion 342 is provided with embeded slot 720, ring gasket is positioned in injection moulding grinding tool, final processing injection moulding obtains ring gasket 710 and the connecting portion 340 of integrated formed structure, wherein, ring gasket 710 is entrenched in embeded slot 720 by one, effectively strengthen the fixedly inlay resultant force between connecting portion 340 and ring gasket 710, when connecting portion 342 adopts plastic material to make instantly, the sealing ring 700 that the present embodiment adopts elastic rubber material to make is made ring gasket 710 with steel material and is directly contacted, can effectively guarantee sealing effectiveness.

Further preferably, in the utility model embodiment, in order to detect the rotary speed of wash shaft 500, washing machine drives structure of the present utility model also comprises velocity measurement mechanisms, incorporated by reference to referring to shown in Fig. 1 and Figure 12, velocity measurement mechanisms specifically comprises Hall subassembly 810 and the magnetic ring component being closely coupled with Hall subassembly 810, wherein, Hall subassembly 810 is fixedly mounted on the upper end of coil retainer 411, magnetic ring component comprises magnet ring body 821, it is fixedly installed in wash shaft 500 by injection moulding, the moulding that obtains shown in Figure 1 822.

In driving mechanism for washing machine of the present utility model, in order to prevent axial float or the displacement of wash shaft, can install a plurality of jump rings and other identical functions parts additional in the applicable position of wash shaft or dehydration axle sleeve; For the ease of installing and load-bearing, can install in the applicable position of wash shaft pad and other identical functions parts additional; In order to meet normal delivery and the installation of the utility model drive connection, can a plurality of oiliness bearings and a plurality of ball bearing be set at different parts, as a plurality of oiliness bearings being set between wash shaft and dehydration axle sleeve, between ring gear and dehydration axle sleeve, between mounting disc and dehydration axle sleeve and between electric motor end cap and wash shaft, a plurality of ball bearings are set, more specifically, described ball bearing can be deep groove ball bearing.Preferably, between the ball bearing between electric motor end cap and wash shaft and wash shaft, can be provided for playing the lining of oiliness bearing function.In order to prevent that washings from entering in deceleration input block and deceleration output block and motor along wash shaft, dehydration axle sleeve and mounting disc, between wash shaft and dehydration axle sleeve, little water seal is set, between dehydration axle sleeve and mounting disc, large water seal is set.Preferably, in order to realize the damping noise abatement when working, between each build-up member, install the beam that plastic material or elastomeric material are prepared from additional, and meeting under the condition of installation strength or correlation function, as mounting disc, electric motor end cap etc., adopt casting aluminium material to be prepared from, to reduce component processing manufacturing cost the part-structure of housing unit, and in order to improve the intensity of each parts, the reinforcement sheet of difformity and quantity is set on parts.

Because each parts such as above-described jump ring, pad, oiliness bearing, ball bearing, lining, large water seal, little water seal, damping noise abatement part and reinforcement sheet are those skilled in the art's customary means, so any change of structurally making for above part is all interpreted as not possessing novelty with respect to this patent.

The present embodiment also provides a kind of washing machine, comprise washing and dehydration execution unit, and driving mechanism for washing machine, wherein, driving mechanism for washing machine adopts driving mechanism for washing machine as above, it is simple in structure, compact, volume is little, easy for installation, and transmission efficiency is high simultaneously, energy consumption is low and noise is little.

To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than above-mentioned explanation, is therefore intended to include in the utility model dropping on the implication that is equal to important document of claim and all changes in scope.Any Reference numeral in claim should be considered as limiting related claim.

In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should make description as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.

Claims

1. an electromagnetic clutch device for driving mechanism for washing machine, described driving mechanism for washing machine comprises rotary body, housing unit, transmission device, electromagnetic clutch device, wash shaft and dehydration axle sleeve, it is characterized in that, described electromagnetic clutch device comprises:

2. the electromagnetic clutch device of driving mechanism for washing machine as claimed in claim 1, is characterized in that, described solenoid mechanism comprises:

Be packed in the coil retainer in described housing unit;

Be installed on the coil holder in coil retainer;

Be set around the solenoid on coil holder.

3. the electromagnetic clutch device of driving mechanism for washing machine according to claim 1, is characterized in that, described clutch gear ring comprises:

Upper end connecting portion;

The lower end connecting portion being connected with upper end connecting portion;

Wherein, described upper end connecting portion inwall is provided with the internal spline being slidably connected with described transmission device or dehydration axle sleeve, and its outer wall is installed with magnetic conduction iron hoop;

Wherein, the bottom of described lower end connecting portion is provided with some described latches.

4. the electromagnetic clutch device of driving mechanism for washing machine according to claim 3, is characterized in that, described upper end connecting portion and the described lower end connecting portion structure that is formed in one.

5. the electromagnetic clutch device of driving mechanism for washing machine as claimed in claim 1, is characterized in that, described rotary body is without rotating shaft rotary body, and described transmission device comprises:

The eccentric bushing that is fixedly connected with described rotary body and rotates around rotary body axis;

Be set in the spur gear that described eccentric bushing is outside and be rotationally connected with it, on the different axial locations of described spur gear, be respectively equipped with the first spur gear section and the second spur gear section;

Be fixedly connected with the first output gear of described wash shaft, described the first output gear and described the first spur gear section engagement;

Be fixedly connected with the second output gear of described dehydration axle sleeve, described the second output gear and described the second spur gear section engagement;

Wherein, described clutch gear ring is sleeved on the outer wall of described the second output gear axially slidably.

6. the electromagnetic clutch device of driving mechanism for washing machine as claimed in claim 5, it is characterized in that, described the first spur gear section is the first external tooth or the first internal tooth, and described the first output gear has and the internal tooth of described the first external tooth engagement or the external tooth meshing with described the first internal tooth;

Described the second spur gear section is the second external tooth or the second internal tooth, and described the second output gear has and the internal tooth of described the second external tooth engagement or the external tooth meshing with described the second internal tooth.

7. the electromagnetic clutch device of driving mechanism for washing machine as claimed in claim 6, is characterized in that, described the first spur gear section is the first external tooth, and described the first output gear has internal tooth, and described the first external tooth is positioned at described internal tooth inner side, and meshes with internal tooth;

Described the second spur gear section is the second internal tooth, and described the second output gear has external tooth, and described the second internal tooth is positioned at described external tooth outside, and meshes with external tooth.

8. the electromagnetic clutch device of driving mechanism for washing machine as claimed in claim 7, it is characterized in that, described spur gear comprises the first spur gear portion with the first spur gear section and the second spur gear portion with the second spur gear section, described the first spur gear portion is fixedly formed on described the second spur gear end surface, and described the first spur gear portion is set in described eccentric bushing outside and is rotationally connected with it.

9. the electromagnetic clutch device of driving mechanism for washing machine as claimed in claim 7, it is characterized in that, described the second output gear comprises connecting portion and the external gear portion being fixedly connected with, described connecting portion is fixedly connected with dehydration axle sleeve, and be positioned at described the first output gear outside, described external gear portion has described external tooth;

Wherein, described clutch gear ring is sleeved on the outer wall of described connecting portion axially slidably.

10. the electromagnetic clutch device of driving mechanism for washing machine as claimed in claim 1, is characterized in that, described rotary body is rotor or belt pulley.