CN104727085A - Electromagnetic clutch structure of washing machine - Google Patents

Electromagnetic clutch structure of washing machine Download PDF

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Publication number
CN104727085A
CN104727085A CN201310712345.5A CN201310712345A CN104727085A CN 104727085 A CN104727085 A CN 104727085A CN 201310712345 A CN201310712345 A CN 201310712345A CN 104727085 A CN104727085 A CN 104727085A
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China
Prior art keywords
clutch
tooth
ring
shock absorbing
gear
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Application number
CN201310712345.5A
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Chinese (zh)
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CN104727085B (en
Inventor
刘军
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Anhui Julong Transmission Technology Co Ltd
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Anhui Julong Transmission Technology Co Ltd
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Priority to CN201310712345.5A priority Critical patent/CN104727085B/en
Publication of CN104727085A publication Critical patent/CN104727085A/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30Driving arrangements 

Abstract

The invention provides an electromagnetic clutch structure of a washing machine. The electromagnetic clutch structure comprises a clutch tray, a clutch gear ring, a planetary gear mechanism, a driving shaft and a driving shaft sleeve. The electromagnetic clutch structure has the advantages that the problems that one-way rotation is caused due to no attraction of the clutch in a continuous whole-program running process, or tap-tap noise is caused due to the fact that the clutch is not aligned into a groove in an aligning process and is aligned into the groove in a washing process or the clutch fails in a long-time continuous running process are solved, and by means of adopting a sliding piece, the technical problem that the clutch fails in the long-time continuous running process is solved very well.

Description

A kind of washing machine electromagnetic clutch structure
Technical field
The invention belongs to clutch field, relate in particular to a kind of washing machine electromagnetic clutch structure.
Background technology
Speed-reducing clutch (abbreviation clutch) is the heart of automatic washing machine, is the critical component that washing of drum type washing machine and dehydration are changed mutually, can realize washing and dehydration two kinds of functions during work.Existing clutch usually because structural design on unreasonable, cause clutch in conjunction with time can not correctly enter in draw-in groove, make normally to carry out work, and along with after long washing process, because the coil temperature of electromagnetic clutch raises, cause the suction-combining force of electromagnetic clutch to decline, and then clutch was lost efficacy.
Summary of the invention
Impeller and the driving shaft of washing machine are connected, interior bucket and propeller shaft sleeve are connected, the prevailing operating state of washing machine is divided into washing operating mode and dehydration condition, when washing machine is in washing operating mode, solenoid is in electriferous state, clutch gear ring overcomes spring upward sliding under the magnetic effect of solenoid, clutch gear ring and ring gear are in disengaged position, now direct driving motor drives driving shaft to rotate, ring gear is driven to rotate while drive shaft impeller rotates, ring gear drives planetary gear rotation, planetary gear drives external toothing to rotate again, external toothing drives propeller shaft sleeve to rotate, due to by planetary transition, external toothing is contrary with the rotation direction of ring gear, make that driving shaft is relative with propeller shaft sleeve to be rotated backward, thus define the impeller of washing machine under a power source and the bidirectional rotation of interior bucket.
When washing machine is in dehydration condition, solenoid stops charged, clutch gear ring spring with slide downward under the effect of self gravitation, the gear shaping of clutch gear ring lower end inserts in the slot of slot dish, clutch gear ring and slot dish lock, namely lock with driving shaft, the meshing relation of the meshing relation of clutch gear ring and planetary gear retainer and planetary gear and ring gear, external toothing, make between ring gear and external toothing locked, driving shaft and driving shaft rotating in same direction, thus define the impeller of washing machine under a power source and the rotating Vortex of interior bucket.
And cause single direction rotation at clutch in continuous Whole Process running due to not adhesive, or owing to not looking for enter in groove at centering program clutch, and the tap-tap produced in groove is looked for when washing procedure.The inefficacy that clutch produces in long-time continuous running.
Thus, the invention provides a kind of control method of washing machine electromagnetic clutch, it solves clutch well in long-time continuous running, produces this technical problem that lost efficacy.
Electromagnetic clutch structure of the present invention, it has clutch pallet, there is in clutch pallet clutch gear ring, center has profile of tooth connecting hole, it is circumferentially evenly arranged the radial trays tooth towards center, and trays tooth has the protuberance protruded to the center of circle, and there is the contact surface extended vertically upward protuberance both sides, both sides contact surface is relative, forms groove between the two;
Described clutch configuration also comprises clutch shock absorbing ring, clutch gear ring, and be circumferentially evenly formed outside described shock absorbing ring with the shock absorbing ring matched in conjunction with tooth of clutch gear ring in conjunction with tooth, clutch shock absorbing ring and clutch gear ring have the same center of circle;
Described clutch also comprises sliding part and is positioned at the solenoid of sliding part outside, and described sliding part slides up and down with the external tooth of propeller shaft sleeve and engages;
Have driving shaft in described propeller shaft sleeve, driving shaft connects drive motors;
Described clutch is provided with planetary wheeling assembly, and planetary wheeling assembly has planetary wheel carrier, planetary gear and external toothing, and planetary gear is meshed with driving shaft, described gear ring socket clutch gear ring.
Preferably, described trays tooth number is 6.
Preferably, from depression angle, described protuberance is square or trapezoidal.
Preferably, described shock absorbing ring has three projections down in conjunction with tooth, projection and both sides wherein convexed to form two grooves, whole shock absorbing ring is in conjunction with tooth in " mountain " shape of standing upside down, and described shock absorbing ring formation profile of tooth also encases clutch gear ring profile of tooth.
Preferably, this clutch configuration has trays tooth, and shock absorbing ring is equal in conjunction with the number of tooth with dish in conjunction with the number of tooth.
Preferably, this structure has driving fluted disc, driving gear disk center cover has driving shaft, also comprise the basal plane driving fluted disc, circumferentially there is multiple driving gear in outside, and driving gear is the tooth of concavo-convex layout on excircle, its concave tooth is form of grooves, the described driving fluted disc flank of tooth and basal plane are in same plane, and teeth groove is deepened simultaneously, and the field of conjugate action is increased.
Preferably, the degree of depth of teeth groove is drive fluted disc flank of tooth thickness 1/2 ~ 2/3.
A kind of washing machine, its clutch adopts the clutch configuration of preceding claim.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of clutch coupling of washing machine;
Fig. 2 is the clutch integrated pallet of prior art;
Fig. 3 is the clutch integrated pallet of improvement of the present invention;
Fig. 4 is the clutch shock absorbing ring of prior art;
Fig. 5 is the clutch shock absorbing ring of improvement of the present invention;
Fig. 6 is the design sketch after the shock absorbing ring loading clutch gear ring of prior art;
Fig. 7 is the design sketch after the shock absorbing ring loading clutch gear ring of improvement of the present invention;
Fig. 8 is that the clutch of prior art drives fluted disc;
Fig. 9 is that the clutch of improvement of the present invention drives fluted disc;
Figure 10 is electromagnetic clutch magnetic field schematic diagram.
Specific embodiment
With reference to the accompanying drawings, clutch involved in the present invention, control device, control method and experiment are described.
Washing machine involved in the present invention, it has electromagnetic clutch, see accompanying drawing 1, wherein the impeller of washing machine and driving shaft are connected, interior bucket and propeller shaft sleeve are connected, the prevailing operating state of washing machine is divided into washing operating mode and dehydration condition, when washing machine is in washing operating mode, solenoid is in electriferous state, clutch gear ring overcomes spring upward sliding under the magnetic effect of solenoid, clutch gear ring and ring gear are in disengaged position, now direct driving motor drives driving shaft to rotate, ring gear is driven to rotate while drive shaft impeller rotates, ring gear drives planetary gear rotation, planetary gear drives external toothing to rotate again, external toothing drives propeller shaft sleeve to rotate, due to by planetary transition, external toothing is contrary with the rotation direction of ring gear, make that driving shaft is relative with propeller shaft sleeve to be rotated backward, thus define the impeller of washing machine under a power source and the bidirectional rotation of interior bucket.
When washing machine is in dehydration condition, solenoid stops charged, clutch gear ring spring with slide downward under the effect of self gravitation, the gear shaping of clutch gear ring lower end inserts in the slot of slot dish, clutch gear ring and slot dish lock, namely lock with driving shaft, the meshing relation of the meshing relation of clutch gear ring and planetary gear retainer and planetary gear and ring gear, external toothing, make between ring gear and external toothing locked, driving shaft and driving shaft rotating in same direction, thus define the impeller of washing machine under a power source and the rotating Vortex of interior bucket.
In order to overcome noise, the present invention improves clutch pallet.See accompanying drawing 2, accompanying drawing 2 is the clutch pallet of prior art, and the profile of tooth contact area A of itself and clutch gear ring is less, and intensity is less.See accompanying drawing 3, accompanying drawing 3 is the pallet of improvement of the present invention, clutch gear ring in clutch pallet, center has profile of tooth connecting hole 1, it is circumferentially evenly arranged the radial trays tooth 2 towards center, and trays tooth 2 has the protuberance 3 protruded to the center of circle, and there is the contact surface B extended vertically upward protuberance 3 both sides, both sides contact surface is relative, forms groove 4 between the two.This design makes the profile of tooth contact surface of clutch gear ring become larger, more reliably, reduces the wearing and tearing produced because clashing into shock absorbing ring.
See accompanying drawing 4, accompanying drawing 4 is the shock absorbing ring of prior art, and phase clutch gear ring profile of tooth is less.See accompanying drawing 5, accompanying drawing 5 is clutch shock absorbing ring of the present invention, is circumferentially evenly formed with the shock absorbing ring matched in conjunction with tooth of clutch gear ring in conjunction with tooth 5 outside it.Clutch shock absorbing ring and clutch gear ring have the same center of circle, the number of trays tooth 2 equals the number of shock absorbing ring in conjunction with tooth 5, each shock absorbing ring has three projections down in conjunction with tooth 5, projection and both sides wherein convexed to form two grooves, whole second in conjunction with tooth " mountain " shape in handstand.That is the shock absorbing ring after improving injects profile of tooth and encases clutch gear ring profile of tooth.
The shock absorbing ring being prior art see accompanying drawing 6,7, Fig. 6 loads the design sketch after clutch gear ring; Fig. 7 is the design sketch after the shock absorbing ring loading clutch gear ring of improvement of the present invention;
See accompanying drawing 7, when assembling, shock absorbing ring matches in conjunction with tooth with clutch gear ring in conjunction with tooth.Shock absorbing ring is sleeved on two contact surfaces that upwards extend of clutch gear ring in conjunction with tooth in conjunction with tooth two grooves.
What after change, integrated pallet made the profile of tooth contact area of clutch gear ring become is larger, reducing to produce wearing and tearing because clashing into shock absorbing ring (working of plastics), adding the reliability of clutch, extending service life.
Further, the present invention improves driving-disc.
Higher see the accompanying drawing 8 existing driving gear flank of tooth, higher than the basal plane driving fluted disc, teeth groove is more shallow.
See accompanying drawing 9, driving gear disk center of the present invention cover has driving shaft 6, and have the basal plane 8 driving fluted disc, circumferentially there is multiple driving gear in outside, and driving gear is the tooth 7 of concavo-convex layout on excircle, and its concave tooth is form of grooves.The described driving fluted disc flank of tooth and basal plane are in same plane, and teeth groove is deepened simultaneously, and the field of conjugate action is increased.The degree of depth of teeth groove is preferably and drives 1/2 ~ 2/3 of fluted disc flank of tooth thickness, and preferably, reduction is of a size of 1mm, and the size of simultaneously deepening also is 1mm.
Accompanying drawing is 10 is conventional electromagnetic force computing formula;
Except structurally improving, can adopt simultaneously and experimentally changing clutch working condition, effectively reduce clutch and lost efficacy.Through producing and can knowing in use procedure, wherein when electromagnetic clutch is under long-time wash conditions, because solenoid temperature can constantly rise, make the resistance of solenoid increase, clutch the suction-combining force is reduced.
Electromagnetic clutch structure of the present invention, it has clutch pallet, there is in clutch pallet clutch gear ring, center has profile of tooth connecting hole, it is circumferentially evenly arranged the radial trays tooth towards center, and trays tooth has the protuberance protruded to the center of circle, and there is the contact surface extended vertically upward protuberance both sides, both sides contact surface is relative, forms groove between the two;
Described clutch configuration also comprises clutch shock absorbing ring, clutch gear ring, and be circumferentially evenly formed outside described shock absorbing ring with the shock absorbing ring matched in conjunction with tooth of clutch gear ring in conjunction with tooth, clutch shock absorbing ring and clutch gear ring have the same center of circle;
Described clutch also comprises sliding part and is positioned at the solenoid of sliding part outside, and described sliding part slides up and down with the external tooth of propeller shaft sleeve and engages;
Have driving shaft in described propeller shaft sleeve, driving shaft connects drive motors;
Described clutch is provided with planetary wheeling assembly, and planetary wheeling assembly has planetary wheel carrier, planetary gear and external toothing, and planetary gear is meshed with driving shaft, described gear ring socket clutch gear ring.
Preferably, described trays tooth number is 6.
Preferably, from depression angle, described protuberance is square or trapezoidal.
Preferably, described shock absorbing ring has three projections down in conjunction with tooth, projection and both sides wherein convexed to form two grooves, whole shock absorbing ring is in conjunction with tooth in " mountain " shape of standing upside down, and described shock absorbing ring formation profile of tooth also encases clutch gear ring profile of tooth.
Preferably, this clutch configuration has trays tooth, and shock absorbing ring is equal in conjunction with the number of tooth with dish in conjunction with the number of tooth.
Preferably, this structure has driving fluted disc, driving gear disk center cover has driving shaft, also comprise the basal plane driving fluted disc, circumferentially there is multiple driving gear in outside, and driving gear is the tooth of concavo-convex layout on excircle, its concave tooth is form of grooves, the described driving fluted disc flank of tooth and basal plane are in same plane, and teeth groove is deepened simultaneously, and the field of conjugate action is increased.
Preferably, the degree of depth of teeth groove is drive fluted disc flank of tooth thickness 1/2 ~ 2/3.
A kind of washing machine, its clutch adopts the clutch configuration of preceding claim.
Specifically, the present invention can adopt following control flow further
1. adhesive program
A point: first give DC90V voltage, shake 3S
B point: voltage rises to DC110V, shake 3S
C point: voltage rises to DC125, keeps 3S
D point: voltage is down to 90V, centering engaging tooth position.Electric machine rotation 15RPM, each 5S of left/right rotation
E point: voltage is pulled up to DC130V, motor, with 15RPM one-directional rotation 5S, starts Normal Wash program
F point: keep near 50V after 15S, and be retained to washing procedure and terminate
ABCDEF is time point.
2. dehydration procedure
After receiving host computer dehydration signal, voltage is down to 0V, and shakes 2S
Electric machine rotation 15RPM, each 3S of positive and negative rotation
Terminate after centering to stop, waiting for that host computer sends out dehydration rotate instruction.
3. shake program
Motor positive and inverse moves 10RPM, positive and negative rotation time 40ms.
Based on the washing machine of clutch of the present invention, in order to control clutch mechanism better, present invention also offers clutch coupling of washing machine adhesive control device.
For clutch not adhesive, only meeting short time single direction rotation, be unlikely to water and throw away outside bucket, clutch adhesive control device of the present invention, can guarantee that washing machine normally uses.
Washing machine has clutch adhesive control device, includes:
Controller, controls the whole adhesive of clutch;
Its middle controller comprises with lower unit:
Detecting unit, after clutch adhesive action completes, detects clutch attracting state, and detecting unit detects dwell time or commutating period;
Identifying unit, detect meet be greater than condition more than 500ms of 1s or commutating period when dwell time time, the non-adhesive of judgement clutch;
Performance element, for the action command that implementation controller sends, makes to supply different voltage to electromagnetic clutch, to produce electromagnetic force.
And adopt the control method of this control device to be:
The method comprises:
Detecting step, after clutch adhesive action completes, detects clutch attracting state, and detecting unit detects dwell time or commutating period;
Determination step, detect meet be greater than condition more than 500ms of 1s or commutating period when dwell time time, the non-adhesive of judgement clutch;
Perform step, for the action command that implementation controller sends, make to supply different voltage to electromagnetic clutch, to produce electromagnetic force.
And result of determination is transferred to controller by identifying unit,
If judge the non-adhesive of clutch, controller sends action command again, carries out protecting action again;
If four times judge all non-adhesive, controller sends and increases voltage instruction;
After increasing voltage, controller sends clutch adhesive action command;
Detecting unit, identifying unit, proceed to detect determination step; If still adhesive effect can not be completed, then continue to increase voltage, until Clutch Control adhesive.
Preferably, each amplitude increasing voltage is 20V.
The foregoing is only preferred embodiment of the present invention, be not used for limiting scope of the invention process, all equal changes of doing according to the scope of the claims of the present invention and modification, all fall into the scope that patent of the present invention contains.

Claims (8)

1. an electromagnetic clutch structure, it has clutch pallet, there is in clutch pallet clutch gear ring, center has profile of tooth connecting hole, it is circumferentially evenly arranged the radial trays tooth towards center, and trays tooth has the protuberance protruded to the center of circle, and there is the contact surface extended vertically upward protuberance both sides, both sides contact surface is relative, forms groove between the two;
Described clutch configuration also comprises clutch shock absorbing ring, clutch gear ring, and be circumferentially evenly formed outside described shock absorbing ring with the shock absorbing ring matched in conjunction with tooth of clutch gear ring in conjunction with tooth, clutch shock absorbing ring and clutch gear ring have the same center of circle;
Described clutch also comprises sliding part and is positioned at the solenoid of sliding part outside, and described sliding part slides up and down with the external tooth of propeller shaft sleeve and engages;
Have driving shaft in described propeller shaft sleeve, driving shaft connects drive motors;
Described clutch is provided with planetary wheeling assembly, and planetary wheeling assembly has planetary wheel carrier, planetary gear and external toothing, and planetary gear is meshed with driving shaft, described gear ring socket clutch gear ring.
2. clutch configuration according to claim 1, is characterized in that, described trays tooth number is 6.
3. clutch configuration according to claim 1 and 2, is characterized in that, from depression angle, described protuberance is square or trapezoidal.
4. clutch configuration according to claim 1 and 2, it is characterized in that, described shock absorbing ring has three projections down in conjunction with tooth, wherein in the middle of projection and both sides convexed to form two grooves, whole shock absorbing ring is in conjunction with tooth in " mountain " shape of standing upside down, and described shock absorbing ring forms profile of tooth and encases clutch gear ring profile of tooth.
5. the clutch configuration according to any one of claim 1-4, is characterized in that, this clutch configuration has trays tooth, and shock absorbing ring is equal in conjunction with the number of tooth with dish in conjunction with the number of tooth.
6. according to any one of claim 1-5 clutch configuration, it is characterized in that, this structure has driving fluted disc, and driving gear disk center cover has driving shaft, also comprises the basal plane driving fluted disc, circumferentially there is multiple driving gear in outside, driving gear is the tooth of concavo-convex layout on excircle, and its concave tooth is form of grooves, and the described driving fluted disc flank of tooth and basal plane are in same plane, teeth groove is deepened simultaneously, and the field of conjugate action is increased.
7. clutch configuration according to claim 6, is characterized in that, the degree of depth of teeth groove is drive fluted disc flank of tooth thickness 1/2 ~ 2/3.
8. a washing machine, its clutch adopts the clutch configuration described in any one of claim 1-7.
CN201310712345.5A 2013-12-23 2013-12-23 A kind of control flow of washing machine electromagnetic clutch Active CN104727085B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310712345.5A CN104727085B (en) 2013-12-23 2013-12-23 A kind of control flow of washing machine electromagnetic clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310712345.5A CN104727085B (en) 2013-12-23 2013-12-23 A kind of control flow of washing machine electromagnetic clutch

Publications (2)

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CN104727085A true CN104727085A (en) 2015-06-24
CN104727085B CN104727085B (en) 2018-08-14

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102206914A (en) * 2011-05-18 2011-10-05 常州至精精机有限公司 Transmission device of washing machine
CN102206913A (en) * 2011-05-18 2011-10-05 常州至精精机有限公司 Transmission device of washing machine
CN102628208A (en) * 2012-03-27 2012-08-08 常州至精精机有限公司 Clutch mechanism for single drive system of washing machine
CN103422323A (en) * 2012-05-23 2013-12-04 常州至精精机有限公司 Drive assembly of pulsator washing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102206914A (en) * 2011-05-18 2011-10-05 常州至精精机有限公司 Transmission device of washing machine
CN102206913A (en) * 2011-05-18 2011-10-05 常州至精精机有限公司 Transmission device of washing machine
CN102628208A (en) * 2012-03-27 2012-08-08 常州至精精机有限公司 Clutch mechanism for single drive system of washing machine
CN103422323A (en) * 2012-05-23 2013-12-04 常州至精精机有限公司 Drive assembly of pulsator washing machine

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