The agitator type washing machine drive assembly
Technical field
The utility model relates to a kind of washing machine transmission mechanism, particularly a kind of agitator type washing machine drive assembly.
Background technology
Agitator type washing machine is identical with other washing machines, all has washing operating mode and dehydration condition, and the positive and negative rotation of impeller reaches the washing purpose under the washing operating mode; Impeller and interior bucket synchronous high-speed rotate under dehydration condition, reach the dehydration purpose.The better washing clothes of impeller rotating kinetic energy and prevent that clothing from twining during washing, and the rotating of impeller generally all is to transfer realization by controller control drive motors positive and negative, this kind of drive is because the frequent starting and the positive and negative rotation of drive motors make shorten dramatically the service life of drive motors.
In addition, because the job requirement of washing machine, transmission mechanism must be finished the decelerate of impeller under the washing operating mode, bucket must keep static simultaneously, and under dehydration condition, must be again that impeller and interior bucket synchronous high-speed rotate, braking in time where necessary, so structure again is relatively complicated, needs clutch, effective cooperation of braking mechanism, and in the prior art, clutch generally is to adopt ratchet, the driving lever of ratchet and control ratchet clutch constitutes, and braking mechanism is set in addition, so relative volume is comparatively huge, structure is more numerous and diverse, installs, safeguard all comparatively inconvenience; Simultaneously, be easy to generate brake and the problem of disharmony that cooperates that drives, occur brake sometimes and carry out simultaneously or drives the situation of just braking after stopping a period of time with driving, be unfavorable for use because braking mechanism is to set up separately.
The utility model content
The purpose of this utility model is to provide a kind of agitator type washing machine drive assembly of simple in structure, dependable performance.
The technical scheme that realizes the utility model purpose is: a kind of agitator type washing machine drive assembly, have the installing plate, driving pulley, the spindle assemblies of fixedlying connected, the axle sleeve of fixedlying connected, arrangement of clutch and the brake gear that are connected with washing machine shell with washing machine inner tub with agitation wheel for washing machine, fixedly connected with driving pulley in the spindle assemblies lower end, axle sleeve and spindle assemblies coaxial rotation are provided with, and the axle sleeve bottom is connected with driving pulley by arrangement of clutch; Described spindle assemblies is made up of power shaft and output shaft, is provided with planetary gear deceleration assembly and rotating output precision between power shaft and the output shaft, and described brake gear has awl dish braking mechanism and brake controlling organization.
The taper type brake disc that the awl dish braking mechanism of above-mentioned agitator type washing machine drive assembly has the frustum ring flange of fixedlying connected with installing plate, the brake block that is fixedly installed on frustum ring flange inwall and matches with frustum ring flange inner wall shape, brake disc and axle sleeve above-below direction are slidingly connected, the brake disc lower end is provided with at least two brake springs, the brake spring lower end is provided with the spring retainer assembly, brake disc keeps the contact condition with brake block under the effect of brake spring, the spring retainer assembly rotates setting relative to axle sleeve.
The spring retainer assembly of above-mentioned agitator type washing machine drive assembly has spring retainer loam cake and spring retainer, coaxial rotation setting between spring retainer loam cake and the spring retainer, the spring retainer loam cake is fixedlyed connected with the brake spring lower end, spring retainer is provided with two clutch slots and two screw slots, two clutch slots are symmetrically distributed, two screw slots are symmetrically distributed, and clutch slot and screw slot are spaced.
The clutch slot of above-mentioned agitator type washing machine drive assembly is a rectangular slot, and the screw slot is fan-shaped slot, and the pairing central angle of the arc length of fan-shaped slot is 90~150 degree.
The spring retainer loam cake of above-mentioned agitator type washing machine drive assembly is a toroidal, and its internal diameter and spring retainer slot ultimate range match, and its outer rim has downward flange, flange and the coaxial socket of spring retainer outer circumference surface.
The coaxial rotation setting realizes by between spring retainer loam cake and spring retainer steel ball being set between the spring retainer loam cake of above-mentioned agitator type washing machine drive assembly and the spring retainer.
Also be provided with the steel ball retainer between the spring retainer loam cake of above-mentioned agitator type washing machine drive assembly and the spring retainer, the steel ball retainer is a toroidal, all apertures that evenly distribute on it, and described steel ball correspondence is arranged in each aperture.
The brake controlling organization of above-mentioned agitator type washing machine drive assembly is a ball screw assembly,, has nut sleeve, leading screw and ball, nut sleeve is fixedlyed connected with brake disc and is arranged on above the spring retainer, and be slidingly connected with the axle sleeve above-below direction, the nut sleeve lower end is provided with the screw gear shaping, after nut sleeve moves down, the screw gear shaping can insert in the screw slot of spring retainer correspondence and can rotate a segment distance in the screw slot, leading screw is a toroidal, spacing with setting of axle sleeve coaxial rotation and above-below direction, the leading screw bottom is connected with arrangement of clutch, and ball is arranged between nut sleeve and the leading screw.
Be provided with ball retainer between the nut sleeve of above-mentioned agitator type washing machine drive assembly and the leading screw, ball retainer is provided with one group of spacing hole, and described ball is arranged in the corresponding spacing hole.
Spacing hole on the ball retainer of above-mentioned agitator type washing machine drive assembly is 8~12, evenly one week of helical arrangement.
The nut sleeve of above-mentioned agitator type washing machine drive assembly and brake disc are fixedly connected with the nut sleeve gear ring jointly, and corresponding nut sleeve gear ring place is provided with supporting external tooth on the described axle sleeve.
The arrangement of clutch side of the being silk spring clutch of above-mentioned agitator type washing machine drive assembly, have shaft coupling, clutch tooth cover and side's silk spring, shaft coupling is identical with clutch tooth cover external diameter, and all match with side's silk spring inside diameter, clutch tooth cover is set up in parallel with the coaxial above-below direction of shaft coupling, the clutch tooth is set on shaft coupling top, spring retainer below, fixedly sleeved with leading screw, clutch tooth set upper side is provided with the clutch gear shaping, the clutch gear shaping is arranged in the corresponding clutch slot of spring retainer and locatees, and shaft coupling is fixedlyed connected with driving pulley.
The brake disc lower end of above-mentioned agitator type washing machine drive assembly is 8 brake springs of distribution evenly.
Equally distributed aperture is 10 on the steel ball retainer of above-mentioned agitator type washing machine drive assembly, and described steel ball correspondence is arranged in each aperture.
Spacing hole on the ball retainer of above-mentioned agitator type washing machine drive assembly is 8, evenly one week of helical arrangement.
The planetary gear deceleration assembly of above-mentioned agitator type washing machine drive assembly has the reduction box loam cake, deceleration box, be fixedly installed on the planetary gear external toothing in the deceleration box, be arranged on the planetary gear retainer in the planetary gear external toothing, be arranged at least two planetary gears in the planetary gear retainer, planetary gear and rotating output precision are rotationally connected, fixedly connected with driving pulley in the power shaft lower end, the upper end is connected with planetary gear retainer spline, described axle sleeve is made up of input axle sleeve and output sleeve, fixedlying connected with deceleration box in the power shaft set upper side, fixedlys connected with the reduction box loam cake in the output sleeve lower end.
The rotating output precision of above-mentioned agitator type washing machine drive assembly has eccentric shaft, the eccentric shaft spacing ring, slide block, tooth bar and output gear, its middle rack is the rectangle framework, its tooth portion is arranged on the framework inboard, the framework lower end is provided with the chute of left and right directions, the tooth bar fore-and-aft direction is slidingly arranged in the deceleration box, and be positioned at above the planetary gear, slide block is a rectangle, the middle part is provided with through hole, the slide block left and right directions is slidingly arranged in the chute of tooth bar lower end, eccentric shaft is provided with the connecting hole that matches with planetary gear, with the axle that the through hole of slide block matches, connecting hole and planetary gear are rotationally connected, and spool are rotationally connected with the through hole of slide block, the eccentric shaft spacing ring is spacing with eccentric shaft, output gear is a sector gear, is meshed with tooth bar, and is connected with output shaft lower end spline.
The input axle sleeve of above-mentioned agitator type washing machine drive assembly and the coaxial socket of power shaft, output sleeve is equipped with bearing with the coaxial socket of output shaft, power shaft top and bottom, output shaft top and bottom, and bearing is oiliness bearing.
The power shaft lower end of above-mentioned agitator type washing machine drive assembly, output shaft upper end are equipped with sealing ring.
The utlity model has following characteristics: the silk clutch of the utility model employing side, taper type brake, planetary gear deceleration and tooth bar, sector are exported positive reaction torque, simple in structure, reliable transmission, braking are accurate, it is little to take up room, installation, long service life easy to maintenance have higher novelty and creativeness.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, below the specific embodiment and in conjunction with the accompanying drawings of basis, the utility model is described in further detail, wherein
Fig. 1 is a structure cut-away view of the present utility model;
Fig. 2 is a perspective exploded view of the present utility model;
Fig. 3 is a clutch brake part-structure cut-away view of the present utility model;
Fig. 4 is a spring retainer assembly perspective exploded view of the present utility model;
Fig. 5 is a spring retainer structural representation of the present utility model;
Fig. 6 is a brake controlling organization perspective exploded view of the present utility model;
Fig. 7 is an output sleeve schematic perspective view of the present utility model;
Fig. 8 is an arrangement of clutch perspective exploded view of the present utility model;
Fig. 9 is star-wheel deceleration assembly of the present utility model and rotating output precision structure cut-away view;
Figure 10 is a star-wheel deceleration assembly perspective exploded view of the present utility model;
Figure 11 is a rotating output precision perspective exploded view of the present utility model.
The specific embodiment
See Fig. 1 to Fig. 3, the utlity model has the installing plate 100, driving pulley 200, the spindle assemblies 300 of fixedlying connected, the axle sleeve 400 of fixedlying connected, arrangement of clutch 500 and the brake gear 600 that are connected with washing machine shell with washing machine inner tub with agitation wheel for washing machine, fixedly connected with driving pulley 200 in spindle assemblies 300 lower ends, axle sleeve 400 and spindle assemblies 300 coaxial rotation settings, axle sleeve 400 bottoms are connected with driving pulley 200 by arrangement of clutch 500; Spindle assemblies 300 has power shaft 301 and output shaft 302, is provided with planetary gear deceleration assembly 330 and rotating output precision 340 between power shaft 301 and the output shaft 302, and described brake gear 600 has awl dish braking mechanism 610 and brake controlling organization 620; The taper type brake disc 613 that awl dish braking mechanism 610 has the frustum ring flange 611 of fixedlying connected with installing plate 100, the brake block 612 that is fixedly installed on frustum ring flange 611 inwalls and matches with frustum ring flange 611 inner wall shape, brake disc 613 is slidingly connected with axle sleeve 400 above-below directions, brake disc 613 lower ends evenly are provided with 8 brake springs 614, brake spring 614 lower ends are provided with spring retainer assembly 615, brake disc 613 keeps the contact condition with brake block 612 under the effect of brake spring 614, spring retainer assembly 615 rotates setting relative to axle sleeve 400.
See Fig. 4 and Fig. 5, spring retainer assembly 615 has spring retainer loam cake 615a and spring retainer 615b, coaxial rotation setting between spring retainer loam cake 615a and the spring retainer 615b, spring retainer loam cake 615a is fixedlyed connected with brake spring 614 lower ends, spring retainer loam cake 615a is a toroidal, its internal diameter and spring retainer 615b slot ultimate range match, its outer rim has downward flange 615a-1, flange 615a-1 and the coaxial socket of spring retainer 615b outer circumference surface, between spring retainer loam cake 615a and the spring retainer 615b steel ball 615c is set, also be provided with steel ball retainer 615d between spring retainer loam cake 615a and the spring retainer 615b, steel ball retainer 615d is a toroidal, all aperture 615d-1 evenly distribute on it, described steel ball 615c correspondence is arranged among each aperture 615d-1, spring retainer 615b is provided with two clutch slot 615b-1 and two screw slot 615b-2, two clutch slot 615b-1 are symmetrically distributed, two screw slot 615b-2 are symmetrically distributed, and clutch slot 615b-1 and screw slot 615b-2 are spaced, clutch slot 615b-1 is a rectangular slot, screw slot 615b-2 is fan-shaped slot, and the pairing central angle alpha of the arc length of fan-shaped slot is 90~150 degree.
See Fig. 3, Fig. 6 and Fig. 7, brake controlling organization 620 is a ball screw assembly,, has nut sleeve 621, leading screw 622 and ball 623, nut sleeve 621 is fixedlyed connected with brake disc 613 and is arranged on above the spring retainer 615b, and be slidingly connected with axle sleeve 400 above-below directions, nut sleeve 621 lower ends are provided with screw gear shaping 621-1, after nut sleeve 621 moves down, screw gear shaping 621-1 can insert among the screw slot 615b-2 of spring retainer 615b correspondence and can rotate a segment distance in screw slot 615b-2, leading screw 622 is a toroidal, spacing with axle sleeve 400 coaxial rotation settings and above-below direction, leading screw 622 bottoms are connected with arrangement of clutch 500, ball 623 is arranged between nut sleeve 621 and the leading screw 622, be provided with ball retainer 624 between nut sleeve 621 and the leading screw 622, ball retainer 624 is provided with one group of spacing hole, described ball 623 is arranged in the corresponding spacing hole, spacing hole on the ball retainer 624 is 8, even one week of helical arrangement, nut sleeve 621 is fixedly connected with nut sleeve gear ring 616 jointly with brake disc 613, and corresponding nut sleeve gear ring 616 places are provided with supporting external tooth 403 on the described axle sleeve 400.
See Fig. 1 to Fig. 3 and Fig. 8, the silk spring clutch of arrangement of clutch 500 sides of being, has shaft coupling 501, clutch tooth cover 502 and Fang Si spring 503, it is identical that shaft coupling 501 and clutch tooth overlap 502 external diameters, and all match with side's silk spring 503 internal diameters, clutch tooth cover 502 is set up in parallel with shaft coupling 501 coaxial above-below directions, clutch tooth cover 502 is arranged on shaft coupling 501 tops, spring retainer 615b below, fixedly sleeved with leading screw 622, the clutch tooth overlaps 502 upper ends and is provided with clutch gear shaping 502-1, clutch gear shaping 502-1 is arranged among the corresponding clutch slot 615b-1 of spring retainer 615b and locatees, and shaft coupling 501 is fixedlyed connected with driving pulley 200.
See Fig. 9 and Figure 10, planetary gear deceleration assembly 330 has reduction box loam cake 331, deceleration box 332, be fixedly installed on the planetary gear external toothing 333 in the deceleration box 332, be arranged on the planetary gear retainer 334 in the planetary gear external toothing 333, be arranged at least two planetary gears 335 in the planetary gear retainer 334, planetary gear 335 is rotationally connected with rotating output precision 340, fixedly connected with driving pulley 200 in power shaft 301 lower ends, the upper end is connected with planetary gear retainer 334 splines, described axle sleeve 400 is made up of input axle sleeve 401 and output sleeve 402, fixedly connected with deceleration box 332 in input axle sleeve 401 upper ends, fixedly connected with reduction box loam cake 331 in output sleeve 402 lower ends, input axle sleeve 401 and power shaft 301 coaxial sockets, output sleeve 402 and output shaft 302 coaxial sockets, power shaft 301 top and bottom, output shaft 302 top and bottom are equipped with bearing 701, bearing 701 is oiliness bearing, power shaft 301 lower ends, output shaft 302 upper ends are equipped with sealing ring 702.
See Fig. 9 and Figure 11, rotating output precision 340 has eccentric shaft 341, eccentric shaft spacing ring 342, slide block 343, tooth bar 344 and output gear 345, its middle rack 344 is the rectangle framework, the 344-1 of its tooth portion is arranged on the framework inboard, the framework lower end is provided with the chute 344-2 of left and right directions, tooth bar 344 fore-and-aft directions are slidingly arranged in the deceleration box 332, and be positioned at planetary gear 335 tops, slide block 343 is a rectangle, the middle part is provided with through hole 343-1, slide block 343 left and right directions are slidingly arranged among the chute 344-2 of tooth bar 344 lower ends, eccentric shaft 341 is provided with the connecting hole 341-1 that matches with planetary gear 335, the axle 341-2 that matches with the through hole 343-1 of slide block 343, connecting hole 341-1 and planetary gear 335 are rotationally connected, the through hole 343-1 of axle 341-2 and slide block 343 is rotationally connected, and eccentric shaft spacing ring 342 is spacing with eccentric shaft 341, and output gear 345 is a sector gear, be meshed with tooth bar 344, and be connected with output shaft 302 lower end splines.
When the drive motors of washing machine is just changeing, side's silk spring 503 unclamps, 200 of driving pulleys drive power shaft 301 and rotate, power shaft 301 outputs power by planetary gear deceleration assembly 330 and rotating output precision 340, form the positive and negative rotation of agitation wheel for washing machine, realize the washing operating mode, this moment is under the effect of brake gear 600, axle sleeve keeps inactive state, and promptly washing machine inner tub keeps braking not rotary state.
When the drive motors of washing machine reverses, side's silk spring 503 of arrangement of clutch 500 is held tightly, by the brake controlling organization 620 to bottom offset, brake disc is pulled out brake block 612 613 times, the screw gear shaping 621-1 of nut sleeve 621 inserts among the screw slot 615b-2 of spring retainer 615b correspondence and rotate a segment distance in screw slot 615b-2 in the process that brake disc 613 moves down, after avoiding the shear stress of brake spring 614 and guaranteeing the disengaging of brake disc 613, driving pulley 200 also drives input axle sleeve 401 and rotates synchronously when driving power shaft 301 rotations, input axle sleeve 401 passes to the deceleration box 332 and the reduction box loam cake 331 of planetary gear deceleration assembly 330, pass to output shaft 302 and output sleeve 402 then, make output shaft 302 and output sleeve 402 synchronous high-speeds rotate, realize dehydration condition, in case and this moment, dehydration condition finished, the power of driving pulley 200 disappears, then side's silk spring 503 of arrangement of clutch 500 is removed the state of holding tightly, the ball screw assembly, of brake controlling organization 620 resets under the effect of brake spring 614 drives, move on the brake disc 613 and reset to braking state, washing machine brakes immediately.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is a specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.