CN208533173U - A kind of high-capacity washing machine retarder clutch - Google Patents

Abstract

The utility model provides a kind of high-capacity washing machine retarder clutch, it include: input shaft, undersetting, dehydrating shaft, upper bracket, impeller shafts, single direction locking mechanism, braking mechanism, ratchet clutch and the large modulus planet gear reducing mechanism with the impeller axis connection, the single direction locking mechanism includes the unilateral bearing of the one-way clutch support being fixed on the upper bracket and Internal and external cycle separation, the outer ring interference of the unilateral bearing is mounted in the one-way clutch support, and inner ring interference is mounted on the dehydrating shaft；First rolling bearing and the second rolling bearing are installed between the input shaft and the clutch shaft of the ratchet clutch.The sliding friction of traditional input shaft and oiliness bearing is changed into rolling friction by the utility model high-capacity washing machine retarder clutch, is improved bearing to the lateral carrying pulling force of belt, is eliminated oiliness bearing oil leak wear-out failure risk due to temperature is excessively high；Improve the monodirectional locking torque and reliability of clutch.

Description

A kind of high-capacity washing machine retarder clutch

Technical field

The utility model relates to a kind of reducing gear clutch for full automatic washing machine, in particular to a kind of high-capacity washing machine slows down Device clutch.

Background technique

Washing machine is acted on using electric energy production machinery to wash the cleaning appliance of clothing, is divided by its specified washing capacity Two classes of household and collective.Currently, the automatic washing machine capacity released on domestic market is substantially 12 kilograms or less middle or small The washing machine of washing capacity, and the washing capacity of decelerating clutch of washing machine matched with its is not more than 12 kilograms, and it is beautiful Substantially 13 kilograms or more of automatic washing machine of continent market demand.The clutch of washing machine, actually one Planetary gear deceleration mechanism, effect are that the primary speed-down and planetary gear double reduction by motor speed through belt pulley are reduced to The revolving speed of rotary drum washing machine, the pawl side of the allowing silk bullet that drain motor is declutched in the control drop-down of computer board when dehydration Spring embraces dehydrating shaft and then realizes the conversion function of washing with dehydration.It was conventionally used in Small And Medium Capacity washing machine deceleration clutch in the past Device either intensity, service life are all unable to satisfy the requirement of 13 kilograms or more of automatic washing machine.Medium and small appearance traditional simultaneously Amount decelerating clutch of washing machine adds the clutch mode of torsional spring to realize the washing of washing machine and the switching of dehydrating function using single ratchet； The monodirectional locking of washing machine inner tub is realized using small-sized unidirectional composite bearing.Above traditional Small And Medium Capacity washing machine deceleration from The structure of clutch structure is more complex, and small-sized unidirectional composite bearing locking torque is low, and impact resistance is poor, is easy fatigue failure. The input rotating part of Small And Medium Capacity decelerating clutch of washing machine traditional simultaneously generallys use oil-bearing structure, be easy to cause The failures such as oiliness bearing abrasion.

Utility model content

(1) technical problems to be solved

That the technical problem to be solved by the present invention is to provide a kind of structures is simple, performance safety is reliable, easy for installation, suitable Close the high-capacity washing machine retarder clutch produced in enormous quantities.

(2) technical solution

In order to solve the above technical problems, the utility model provides a kind of high-capacity washing machine retarder clutch, comprising: defeated Enter axis, undersetting, dehydrating shaft, the upper bracket being mounted on the undersetting, the impeller shafts being sleeved in the dehydrating shaft, unidirectional Locking mechanism, braking mechanism, ratchet clutch and the large modulus planet gear reducing mechanism with the impeller axis connection, it is described Single direction locking mechanism includes the unilateral bearing of the one-way clutch support being fixed on the upper bracket and Internal and external cycle separation, described The outer ring interference of unilateral bearing is mounted in the one-way clutch support, and inner ring interference is mounted on the dehydrating shaft；It is described First rolling bearing and the second rolling bearing are installed between input shaft and the clutch shaft of the ratchet clutch.Traditional It is installation oiliness bearing between the input shaft and clutch shaft of clutch coupling of washing machine, oiliness bearing will appear oil leak because temperature is excessively high Sliding friction is changed into rolling friction by the risk of wear-out failure, the technical program, improves lateral carrying of the bearing to belt Pulling force.The belt pulley of washing machine can be bigger using tensile force, and pulling force stability is higher to carve band more, and traditional impeller is replaced to wash The V belt that clothing machine is easy to wear, noise is big.

Further, the number of first rolling bearing is at least 1.

Further, the ratchet clutch includes spline friction sleeve, torsional spring, belt pulley, pawl, trip(ping) lever, ratchet And the clutch shaft, the belt pulley are fixed on the input shaft by self-locking nut, the pawl is cut with scissors by detent pin It connects on the trip(ping) lever, the spline friction sleeve is mounted on the input shaft, the spline friction sleeve and the clutch shaft On be set with the torsional spring, the ratchet is set with outside the torsional spring；The trip(ping) lever is hinged on the lower branch by push rod pin On seat；The trip(ping) lever is equipped with trip(ping) lever spring in hinged place, and the trip(ping) lever spring one end is resisted against on the trip(ping) lever, The other end is hooked on the undersetting.The trip(ping) lever spring provides one towards the ratchet to the trip(ping) lever always Thrust falls into the pawl to the ratchet；In washing, the pawl is fallen into the ratchet washing machine.

Further, the ratchet clutch is provided with 2 pawls and corresponding 2 ratchets；It can be to avoid tradition Rotary drum washing machine speed-reducing clutch because unilateral bearing fail due to caused by rotary drum washing machine one-directionally rotate the problem of.

Further, the braking mechanism includes brake band, braked wheel and push rod, and described brake band one end is fixed on described On undersetting, the other end is mounted on the push rod by brake band pin, and the braked wheel is separately connected the clutch shaft and institute Dehydrating shaft is stated, the push rod is hinged on the push rod pin；Tripping spring, the tripping spring one are installed on the push rod pin End hook is hung on the push rod, and the other end is resisted against on the undersetting, and the tripping spring always provides the brake band One enclasping force towards the braked wheel；Caging bolt is installed on the push rod, the caging bolt be resisted against it is described from It closes on bar.

Further, the large modulus planet gear reducing mechanism includes downlink carrier, the uplink with the impeller axis connection Carrier, the planetary gear being meshed with the teeth portion of the input shaft and the internal gear engaged with the planetary gear, the internal gear Connect the clutch shaft；The planetary gear is mounted in the downlink carrier and the uplink carrier by mandrel.

Further, oiliness bearing and small sealing ring, the dehydration are installed between the dehydrating shaft and the impeller shafts Third rolling bearing and big water seal are installed between axis and the upper bracket.

Further, the belt pulley is V-belt belt pulley or carves band belt pulley more；It adopts on the surface of the braked wheel With shotblasting processing and nitrogenation treatment technology or use dacroment processing technique, improve brake area coefficient of friction and Wearability eliminates the friction allophone between brake band and braked wheel；The trip(ping) lever uses engineering plastics injection molding or gold Belong to punch forming to form.

Further, the torsional spring is formed using rectangular spring steel wire coiling.

(3) beneficial effect

The utility model high-capacity washing machine retarder clutch uses rolling bearing, by traditional input shaft and oil-containing axis The sliding friction held is changed into rolling friction, improves bearing to the lateral carrying pulling force of belt, eliminates oiliness bearing because of temperature Spend high and oil leak wear-out failure risk；Simultaneously because laterally carrying pulling force is promoted, the belt pulley of washing machine can be using tensioning Power is bigger, and pulling force stability is higher to carve band more, replaces the V belt that traditional rotary drum washing machine is easy to wear, noise is big；Greatly The design of the planetary gear train of modulus can satisfy the performance requirement of 13 kilograms to 20 kilograms rotary drum washing machines and agitator type washing machine； It, can be to avoid conventional wave wheel washer speed-reducing clutch because unidirectional using double ratchet wheels and double pawl speed-reducing clutch clutch systems Bearing failure and caused by rotary drum washing machine unidirectionally turn problem；What the unilateral bearing and one-way clutch support of inner and outer ring separation formed Monodirectional locking system is mounted on the upper bracket of speed-reducing clutch, improve large-capacity decelerating clutch monodirectional locking torque and can By property, structure space is saved.

Detailed description of the invention

Fig. 1 is the perspective view of the utility model high-capacity washing machine retarder clutch；

Fig. 2 is the structural schematic diagram of the utility model high-capacity washing machine retarder clutch；

Fig. 3 is that Fig. 2 omits the bottom view after belt pulley；

Fig. 4 is the top view of Fig. 2；

Fig. 5 is the left view of Fig. 2；

Wherein: 1 being input shaft, 2 be self-locking nut, 3 be spline friction sleeve, 4 be torsional spring, 5 be the first rolling bearing, 6 be Belt pulley, 7 be pawl, 8 be ratchet spring, 9 be pawl gasket, 10 be detent pin, 11 be trip(ping) lever, 12 be ratchet, 13 be spiral shell It is female, 14 be undersetting, 15 be the second rolling bearing, 16 be metal gasket, 17 be clutch shaft, 18 be downlink carrier, 19 be braking Band, 20 be mandrel, 21 be braked wheel, 22 be internal gear, 23 be planetary gear, 24 be uplink carrier, 25 be circlip, 26 be washer, 27 be dehydrating shaft, 28 be unilateral bearing, 29 be upper bracket, 30 be third rolling bearing, 31 be big water seal, 32 be oiliness bearing, 33 it is small sealing ring, 34 be impeller shafts, 35 be screw assemblies, 36 be R type pin, 37 be caging bolt, 38 be foam-rubber cushion, 39 is single To clutch support, 40 be push rod pin, 41 be brake band pin, 42 be tripping spring, 43 be push rod, 44 be trip(ping) lever spring, 45 be Plastic spacer, 46 be fastening screw, 47 be limit sleeve, 48 be positive stop end.

Specific embodiment

Refering to fig. 1~Fig. 5, the utility model provide a kind of high-capacity washing machine retarder clutch, comprising: input shaft 1, It is undersetting 14, dehydrating shaft 27, the upper bracket 29 being mounted on undersetting 14, the impeller shafts 34 being sleeved in dehydrating shaft 27, unidirectional Locking mechanism, braking mechanism, ratchet clutch and the large modulus planet gear reducing mechanism being connect with impeller shafts 34, impeller shafts 34 connect the impeller disk of external washing machine, and dehydrating shaft 27 connects the dehydration barrel of external washing machine；Single direction locking mechanism includes fixing The unilateral bearing 28 of one-way clutch support 39 and Internal and external cycle separation on upper bracket 29, upper bracket 29 and one-way clutch support Foam-rubber cushion 38 is installed between 39；Refering to Fig. 4, one-way clutch support 39 is fixed on by 3 fastening screws 46 and limit sleeve 47 On upper bracket 29；The outer ring interference of unilateral bearing 28 is mounted in one-way clutch support 39, and inner ring interference is mounted on dehydrating shaft On 27；First rolling bearing 5 and the second rolling bearing are installed between input shaft 1 and the clutch shaft 17 of ratchet clutch 15；Wherein, metal gasket 16 and plastic spacer 44 are set on input shaft 1, input shaft 1 passes through metal gasket 16 and plastic spacer 44 by 15 location and installation of the second rolling bearing in clutch shaft 17.Between the input shaft and clutch shaft of traditional clutch coupling of washing machine It is installation oiliness bearing, oiliness bearing will appear the risk of oil leak wear-out failure because temperature is excessively high, and the technical program will be slided Friction is changed into rolling friction, improves bearing to the lateral carrying pulling force of belt.The belt pulley of washing machine can be using tensioning Power is bigger, and pulling force stability is higher to carve band more, replaces the V belt that traditional rotary drum washing machine is easy to wear, noise is big, property It can be safe and reliable.

Wherein, the number of the first rolling bearing 5 is at least 1；Referring to Fig.2, first rolling bearing 5 in the present embodiment Number is 2.

Refering to fig. 1 and Fig. 2, ratchet clutch include spline friction sleeve 3, torsional spring 4, belt pulley 6, pawl 7, trip(ping) lever 11, ratchet 12 and clutch shaft 17, belt pulley 6 are fixed on input shaft 1 by self-locking nut 2, and pawl 7 is cut with scissors by detent pin 10 It connecing on trip(ping) lever 11, spline friction sleeve 3 is mounted on input shaft 1, it is set with torsional spring 4 on spline friction sleeve 3 and clutch shaft 17, It is set with ratchet 12 outside torsional spring 4, torsional spring 4 is sleeved on spline friction sleeve 3 and clutch shaft 17 simultaneously, it is therefore intended that laundry machine dehydration When, the torsional spring 4 in ratchet 12 is in reset state, and spline friction sleeve 3 and clutch shaft 17 are held tightly, linked into an integrated entity；Trip(ping) lever 11 are hinged on undersetting 14 by push rod pin 40, and push rod pin 40 is by 36 location and installation of R type pin on the trip(ping) lever 11；From It closes bar 11 and trip(ping) lever spring 44 is installed in hinged place, 44 one end of trip(ping) lever spring is resisted against on trip(ping) lever 11, and the other end hooks On undersetting 14.Trip(ping) lever spring 44 provides a thrust towards ratchet 12 to trip(ping) lever 11 always, make pawl 7 fall into On ratchet 12, refering to Fig. 5, the positive stop end 48 of trip(ping) lever 11 is resisted against on undersetting 14 at this time；Washing machine is in washing, pawl 7 It falls into ratchet 12.Detent pin 10 is fixed on trip(ping) lever 11 by nut 13, between detent pin 10 and trip(ping) lever 11 Pawl gasket 9 is installed, ratchet spring 8 is set on pawl 7,8 one end of ratchet spring is resisted against on pawl 7, the other end against On pawl gasket 9.

In the present embodiment, ratchet clutch is provided with 2 pawls 7 and corresponding 2 ratchets 12；It can be to avoid biography The problem of rotary drum washing machine caused by rotary drum washing machine speed-reducing clutch unite due to unilateral bearing fails one-directionally rotates, performance safety Reliably.

Refering to Fig. 2 and Fig. 3, braking mechanism includes brake band 19, braked wheel 21 and push rod 43, and 19 one end of brake band passes through group It closes screw 35 to be fixed on undersetting 14, the other end is mounted on push rod 43 by brake band pin 41, and braked wheel 21 is separately connected Clutch shaft 17 and dehydrating shaft 27, three's shape is integral, and push rod 43 is hinged on push rod pin 40；Braking is installed on push rod pin 40 Spring 42,42 one end of tripping spring are hooked on push rod 43, and the other end is resisted against on undersetting 14, and tripping spring 42 is always to system Dynamic band 19 provides an enclasping force towards braked wheel 21, and brake band 19 is made to hold braked wheel 21 tightly；Refering to Fig. 3, pacify on push rod 43 Equipped with caging bolt 37, caging bolt 37 is resisted against on trip(ping) lever 11.

Referring to Fig.2, large modulus planet gear reducing mechanism includes downlink carrier 18, the uplink carrier connecting with impeller shafts 34 24, the planetary gear 23 being meshed with the teeth portion of input shaft 1 and the internal gear 22 engaged with planetary gear 23, impeller shafts 34 pass through flower It is keyed uplink carrier 24；Internal gear 22 connects clutch shaft 17, and it is whole that braked wheel 21, clutch shaft 17 and 27 three of dehydrating shaft form one Body；Planetary gear 23 is mounted in downlink carrier 18 and uplink carrier 24 by mandrel 20.When laundry machine dehydration, torsional spring 4 is by spline Friction sleeve 3 and clutch shaft 17 are held tightly, and spline friction sleeve 3, clutch shaft 17, braked wheel 21, internal gear 22 link into an integrated entity at this time.

Referring to Fig.2, be equipped with oiliness bearing 32 and small sealing ring 33 between dehydrating shaft 27 and impeller shafts 34, dehydrating shaft 27 with Third rolling bearing 30 and big water seal 31 are installed between upper bracket 29.In the present embodiment, the number of oiliness bearing 32 is 2 It is a, circlip 25 and washer 26 are set on impeller shafts 34, the oiliness bearing 32 that washer 26 will be close to 34 spline side of impeller shafts is fixed Position is mounted in dehydrating shaft 27.

Wherein, belt pulley 6 is V-belt belt pulley or carves band belt pulley more；The surface of braked wheel 21 uses shotblasting Processing and nitrogenation treatment technology use dacroment processing technique, improve the coefficient of friction and wearability of brake area, disappear In addition to the friction allophone between brake band and braked wheel；Trip(ping) lever 11 using engineering plastics injection molding or it is metal stamping formed and At；Torsional spring 4 is formed using rectangular spring steel wire coiling.

When washing of drum type washing machine, motor for washer is driving the belt pulley 6 of high-capacity washing machine speed-reducing clutch just by belt Opposite direction rotation；Trip(ping) lever 11 is in insert state under the action of trip(ping) lever spring 44, and 2 correspondences of pawl 7 is made to fall into 2 spine In wheel 12；Braked wheel 21 and dehydrating shaft 27 are in the lock state under the action of brake band 19 and unilateral bearing 28 respectively, braking Band 19 holds braked wheel 21 tightly；Torsional spring 4 in 2 ratchets 12 is in loosening state, and belt pulley 6 drives spline friction sleeve 3 and input Axis 1 rotates, and the gear head of input shaft 1 drives 23 positive and negative rotation of planetary gear, to drive uplink carrier 24 and downlink carrier 18 Positive and negative underdrive, uplink carrier 24 drive 34 positive and negative rotation of impeller shafts by spline fitted；Impeller shafts 34 drive Washing machine wave Wheel disc positive and negative rotation, to realize the washing function of washing machine.

When laundry machine dehydration, washing machine tractor pulls open push rod 43, the caging bolt 37 being equipped on push rod 4 push from It closes bar 11 to open, so that 2 correspondences of pawl 7 is detached 2 ratchets 12, brake band 19 is also opened, and braked wheel is loosening；2 simultaneously Torsional spring 4 in ratchet 12 resets, and spline friction sleeve 3 and clutch shaft 17 are held tightly, linked into an integrated entity；Motor for washer passes through belt Drive high-capacity washing machine speed-reducing clutch belt pulley 6 rotationally clockwise, refering to Fig. 4, be clockwise in figure Laundry machine dehydration rotation direction；Drive the spline friction sleeve 3 that is connected and clutch shaft 17, braked wheel 21, dehydrating shaft 27 and Dehydrating vessel in washing machine on 27 ring flange of dehydrating shaft is mounted on rotationally clockwise, to realize laundry machine dehydration function.

The present embodiment high-capacity washing machine retarder clutch uses rolling bearing, by traditional input shaft and oiliness bearing Sliding friction be changed into rolling friction, improve bearing to the lateral carrying pulling force of belt, eliminate oiliness bearing because of temperature Excessively high and oil leak wear-out failure risk；Simultaneously because laterally carrying pulling force is promoted, the belt pulley of washing machine can use tensile force Bigger, pulling force stability is higher to carve band more, replaces the V belt that traditional rotary drum washing machine is easy to wear, noise is big；Big mould The design of several planetary gear trains can satisfy the performance requirement of 13 kilograms to 20 kilograms rotary drum washing machines and agitator type washing machine；It adopts It, can be to avoid conventional wave wheel washer speed-reducing clutch because of one-way shaft with double ratchet wheels and double pawl speed-reducing clutch clutch systems Hold failure and caused by rotary drum washing machine unidirectionally turn problem；The unilateral bearing of inner and outer ring separation and the list of one-way clutch support composition It is mounted on the upper bracket of speed-reducing clutch to locking system, improves the monodirectional locking torque of large-capacity decelerating clutch and reliable Property, save structure space.

The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvements and modifications can also be made, these change It also should be regarded as the protection scope of the utility model into retouching.

Claims (9)

1. a kind of high-capacity washing machine retarder clutch, comprising: input shaft (1), undersetting (14), dehydrating shaft (27), installation In the upper bracket (29) on the undersetting (14), the impeller shafts (34), the monodirectional locking machine that are sleeved in the dehydrating shaft (27) Structure, braking mechanism, ratchet clutch and the large modulus planet gear reducing mechanism being connect with the impeller shafts (34), feature Be: the single direction locking mechanism includes the one-way clutch support (39) being fixed on the upper bracket (29) and Internal and external cycle point From unilateral bearing (28), the outer ring interference of the unilateral bearing (28) is mounted in the one-way clutch support (39), in Circle interference is mounted on the dehydrating shaft (27)；Between the input shaft (1) and the clutch shaft (17) of the ratchet clutch First rolling bearing (5) and the second rolling bearing (15) are installed.

2. high-capacity washing machine retarder clutch as described in claim 1, it is characterised in that: first rolling bearing (5) number is at least 1.

3. high-capacity washing machine retarder clutch as described in claim 1, it is characterised in that: the ratchet clutch packet Include spline friction sleeve (3), torsional spring (4), belt pulley (6), pawl (7), trip(ping) lever (11), ratchet (12) and the clutch shaft (17), the belt pulley (6) is fixed on the input shaft (1) by self-locking nut (2), and the pawl (7) passes through detent pin (10) it is hinged on the trip(ping) lever (11), the spline friction sleeve (3) is mounted on the input shaft (1), and the spline rubs It wipes and is set with the torsional spring (4) on set (3) and the clutch shaft (17), be set with the ratchet (12) outside the torsional spring (4)；Institute Trip(ping) lever (11) are stated to be hinged on the undersetting (14) by push rod pin (40)；The trip(ping) lever (11) is equipped in hinged place Trip(ping) lever spring (44), described trip(ping) lever spring (44) one end are resisted against on the trip(ping) lever (11), and the other end is hooked on described On undersetting (14).

4. high-capacity washing machine retarder clutch as claimed in claim 3, it is characterised in that: the ratchet clutch is set It is equipped with 2 pawls (7) and corresponding 2 ratchets (12).

5. high-capacity washing machine retarder clutch as claimed in claim 3, it is characterised in that: the braking mechanism includes system Dynamic band (19), braked wheel (21) and push rod (43), described brake band (19) one end are fixed on the undersetting (14), the other end It is mounted on the push rod (43) by brake band pin (41), the braked wheel (21) is separately connected the clutch shaft (17) and institute It states dehydrating shaft (27), the push rod (43) is hinged on the push rod pin (40)；Braking bullet is installed on the push rod pin (40) Spring (42), described tripping spring (42) one end are hooked on the push rod (43), and the other end is resisted against on the undersetting (14)； It is equipped with caging bolt (37) on the push rod (43), the caging bolt (37) is resisted against on the trip(ping) lever (11).

6. high-capacity washing machine retarder clutch as claimed in claim 5, it is characterised in that: the large modulus planetary gear subtracts Fast mechanism includes downlink carrier (18), connect with the impeller shafts (34) uplink carrier (24), the tooth with the input shaft (1) The planetary gear (23) that portion is meshed and the internal gear (22) engaged with the planetary gear (23), the internal gear (22) connect institute State clutch shaft (17)；The planetary gear (23) is mounted on the downlink carrier (18) and the uplink carrier by mandrel (20) (24) on.

7. such as high-capacity washing machine retarder clutch as claimed in any one of claims 1 to 6, it is characterised in that: the dehydration Oiliness bearing (32) and small sealing ring (33), the dehydrating shaft (27) and institute are installed between axis (27) and the impeller shafts (34) It states and third rolling bearing (30) and big water seal (31) is installed between upper bracket (29).

8. high-capacity washing machine retarder clutch as claimed in claim 5, it is characterised in that: the belt pulley (6) is three Angle band belt pulley carves band belt pulley more；The surface of the braked wheel (21) uses shotblasting processing and nitrogenation treatment technology Or use dacroment processing technique；The trip(ping) lever (11) is using engineering plastics injection molding or metal stamping formed forms.

9. such as the described in any item high-capacity washing machine retarder clutches of claim 3 to 6, it is characterised in that: the torsional spring (4) it is formed using rectangular spring steel wire coiling.