CN205382330U - Washing machine speed reduction clutch brake band and speed reduction clutch - Google Patents
Washing machine speed reduction clutch brake band and speed reduction clutch Download PDFInfo
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- CN205382330U CN205382330U CN201620107300.4U CN201620107300U CN205382330U CN 205382330 U CN205382330 U CN 205382330U CN 201620107300 U CN201620107300 U CN 201620107300U CN 205382330 U CN205382330 U CN 205382330U
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- belt body
- ratchet
- kink
- brake band
- solder joint
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Abstract
The utility model provides a washing machine speed reduction clutch brake band and speed reduction clutch, the brake band is flat list structure including the area body, the area body, and the at least one end of the area body is installed on the brake arm, one end that the area body is connected with the brake arm has a reverse kink of buckling, forms the mounting hole between kink and the area body, and the free end of kink welds into a body structure between personally experiencing sth. Part of the body with taking. The utility model discloses a washing machine speed reduction clutch brake band will take the present riveting mode in body both ends to change the welding into, and the connecting length at area body both ends can be shortened to a certain extent in the unnecessary setting of considering riveted riveting hole, and strengthening rib length is gone up to the area body that can extend, avoids producing the bending deformation when brake band roll forming, and guarantee the zhang du of brake band when the brake arm is opened the brake band and is thrown off the braked wheel.
Description
Technical field
This utility model relates to washing machine technology field, in particular it relates to a kind of decelerating clutch of washing machine brake band and speed-reducing clutch.
Background technology
Decelerating clutch of washing machine is the primary drive parts in automatic washing machine, and effect is to reduce the rotating speed of motor and increase moment, it is achieved the switching of washing and dehydration.
Brake band belongs to the important composition parts in decelerating clutch of washing machine brake unit.Brake band passes through roll forming, form definite shape, when washing, brake arm is in original state, and brake band is by holding braked wheel tightly, it is prevented that interior bucket transfer, under dewatering state, brake band is take-off the brake wheel under brake arm draws, and makes output shaft and dehydrating shaft make as a whole, and high speed single direction rotation reaches the purpose of centrifuge dehydration.
In the washing condition, it is necessary to the brake band after roll forming can hold braked wheel completely tightly, and under dewatering state, brake band needs again certain degree to keep the state of completely disengaged braked wheel.Generally we increase the mode of reinforcement on brake band and improve rigidity and the Zhang Du of brake band.For ensureing the braking effect of brake band, reinforcement length should press close to pin-and-hole position, brake band two ends as far as possible.
Current brake band end often adopts riveted type connected mode, is riveted by the boring at brake band two ends again, for ensureing riveted joint effect, it is necessary to end reserves enough spaces, causes that reinforcement length is shortened, and then have impact on the braking effect of brake band.
In view of this, special proposition this utility model.
Utility model content
In order to solve the problems referred to above, the first utility model purpose of the present utility model is to provide a kind of decelerating clutch of washing machine brake band, specifically, have employed following technical scheme:
A kind of decelerating clutch of washing machine brake band, including belt body, belt body is flat-shaped structure, at least one end of belt body is arranged on brake arm, one end that described belt body is connected with brake arm has the kink of reversely bending, installing hole, integrally welded structure between free end and the belt body of kink is formed between kink and belt body.
Further, there is between described kink and belt body at least three solder joint.
Further, the belt body width at described installing hole place narrows, the free end of kink is identical with belt body width, there are between described kink and belt body three solder joints, two solder joints are arranged on kink and exist together mutually with belt body width, and it being symmetricly set on belt body centrage both sides, another solder joint is arranged on belt body width and narrows place.
Further, described belt body two ends are separately mounted on brake arm, and the two ends of belt body are respectively provided with the kink of reversely bending, and two ends kink respectively and forms installing hole, integrally welded structure between free end and the belt body of two ends kink between belt body.
Further, one end of described belt body is the first kink, and correspondence has the first installing hole；The other end is the second kink, and correspondence has the second installing hole；The first described installing hole is arranged on the far-end on brake arm, and the length of the first kink is longer than the second kink.
Further, having the first solder joint, the second solder joint and the 3rd solder joint between described the first kink and belt body, the first solder joint is arranged near the first installing hole；Having the 4th solder joint, the 5th solder joint and the 6th solder joint between described the second kink and belt body, the 4th solder joint is arranged near the second installing hole；Distance between the first described solder joint and the first installing hole is equal to the distance between the 4th solder joint and the second installing hole.
Further, the distance between the second described solder joint and the 3rd solder joint is equal to the distance between the 5th solder joint and the 6th solder joint.
Further, between described kink and belt body, the diameter of solder joint is not less than 4mm.
Further, described belt body arranging reinforcement, reinforcement is arranged along the centrage of belt body, and the length of reinforcement is not less than the 85% of tape body length.
Second utility model purpose of the present utility model is to provide a kind of decelerating clutch of washing machine with above-mentioned speed-reducing clutch brake band.
Decelerating clutch of washing machine brake band of the present utility model, change existing for belt body two ends riveting method into welding, the setting of the riveted holes of riveted joint need not be considered, the connecting length at belt body two ends can be shortened to a certain extent, reinforcement length on belt body can be lengthened, avoid producing flexural deformation when brake band roll forming, and open, at brake arm, the Zhang Du ensureing brake band when brake band disengages braked wheel.
Accompanying drawing explanation
The structural representation of Fig. 1 this utility model decelerating clutch of washing machine；
The partial sectional view of Fig. 2 this utility model decelerating clutch of washing machine；
The front view of Fig. 3 this utility model pawl arm；
The left view of Fig. 4 this utility model pawl arm；
The rearview of Fig. 5 this utility model pawl arm；
The right view of Fig. 6 this utility model pawl arm；
The sectional view in B-B face in Fig. 7 Fig. 6 of the present utility model；
The sectional view of Fig. 8 this utility model decelerating clutch of washing machine；
The explosive view of the clutch of Fig. 9 washing machine of the present utility model；
The structural representation of Figure 10 this utility model decelerating clutch of washing machine brake band；
The top view of a kind of decelerating clutch of washing machine brake band of Figure 11 this utility model；
The sectional view of a kind of decelerating clutch of washing machine brake band reinforcement of Figure 12 this utility model；
The installing hole end partial view of a kind of decelerating clutch of washing machine brake band of Figure 13 this utility model.
nullLabel instructions in the appended drawings: the pulley of 200-100-201-202 - the first connection arm pawl arm and pawl (203-204-204 - the second and pawl shaft installation positioning block, 206-207-208 - fixed arm body connection department the second positioning hole 209-210 - positioning of 211 - fixed nut shell 212-213 - reset spring gasket 213-301-400-401 - the first connecting shaft brake arm bearing 600-402 - the second connecting shaft 500 - the rotation mechanism end cover on the 700-700-900 - output shaft sleeve 1000 - output shaft of water sealing on ratchet ratchet under 1101-1101-1200 - hold spring clutch 1300 - the torque shaft sleeve 1400 - input shaft brake wheel cover 1500-1500 - bearing 1500 - brake wheel brake with 1800-1800-1802 - the first bending part with body 1803 - the first mounting hole 1804 - reinforced 1806 - second spot 1807-1805 - the first solder joint third spot 1808 - the second bending department in 1809 - the second mounting holes 1810-5 1811-6 solder joint 1811 - the fourth spot.
Detailed description of the invention
Below in conjunction with accompanying drawing, a kind of decelerating clutch of washing machine brake band of the present utility model and speed-reducing clutch are described in detail:
Brake band belongs to the important composition parts in decelerating clutch of washing machine brake unit.Brake band passes through roll forming, form definite shape, when washing, brake arm is in original state, and brake band is by holding braked wheel tightly, it is prevented that interior bucket transfer, under dewatering state, brake band is take-off the brake wheel under brake arm draws, and makes output shaft and dehydrating shaft make as a whole, and high speed single direction rotation reaches the purpose of centrifuge dehydration.In the washing condition, it is necessary to the braked wheel shape after roll forming can be fitted braked wheel completely, and under dewatering state, brake band needs certain degree to keep the state of completely disengaged braked wheel.
As shown in Figure 10, a kind of decelerating clutch of washing machine brake band, including belt body 1801, belt body 1801 is flat-shaped structure, at least one end of belt body 1801 is arranged on brake arm 400, one end that described belt body 1801 is connected with brake arm 400 has the kink of reversely bending, forms installing hole, integrally welded structure between free end and the belt body of kink between kink and belt body.
Decelerating clutch of washing machine brake band of the present utility model, belt body 1801 and brake arm 400 link are changed into by present riveting method and welds, the setting of the riveted holes of riveted joint need not be considered, the connecting length of belt body 1801 end can be shortened to a certain extent, reinforcement 1804 length on belt body can be lengthened, avoid producing flexural deformation when brake band roll forming, and open, at brake arm 400, the Zhang Du ensureing brake band when brake band disengages braked wheel.
Adopt riveting method time, due to riveted holes offer position and size suffers from certain requirement, guarantee connect tightness, therefore, adopt riveted joint time, connecting length is relatively large.This utility model is changed into welding, and by kink and belt body 1801 being heated, reheating welding press so that it is connect as one, it is to avoid riveted holes, connecting length is shorter.
It addition, welding manner is more simple, it is more easy to realization.
Further, there is between described kink and belt body 1801 at least three solder joint.On the one hand, it is ensured that the intensity of connection, still further aspect, it is possible to decrease technology difficulty.
The belt body width at installing hole place of the present utility model narrows, the free end of kink is identical with belt body width, there are between described kink and belt body three solder joints, two solder joints are arranged on kink and exist together mutually with belt body width, and it being symmetricly set on belt body centrage both sides, another solder joint is arranged on belt body width and narrows place.It is be arranged on brake arm 400 to realize brake band that belt body 1801 narrows at installing hole place, saves installing space.
Brake band of the present utility model is applicable to one end and is fixed on housing 300, and the other end is connected to the decelerating clutch of washing machine on brake arm 400, it is possible to be connected to the decelerating clutch of washing machine on brake arm 400 suitable in two ends.
A kind of decelerating clutch of washing machine brake band as shown in Fig. 8, Fig. 9, Figure 10 and Figure 11, it is connected to the decelerating clutch of washing machine on brake arm 400 suitable in two ends, described belt body 1801 two ends are separately mounted on brake arm 400, the two ends of belt body are respectively provided with the kink of reversely bending, two ends kink respectively and forms installing hole, integrally welded structure between free end and the belt body of two ends kink between belt body.
Further, one end of described belt body is the first kink 1802, and correspondence has the first installing hole 1803；The other end is the second kink 1808, and correspondence has the second installing hole 1809；The first described installing hole 1803 is arranged on the far-end on brake arm 400, and the length of the first kink 1802 is longer than the second kink 1808.This utility model is arranged on the construction features on brake arm 400 according to brake band, the difference length of the length of the first kink 1802 and the second kink 1808 arranged, in order to connect.Further, owing to the first installing hole 1803 is arranged on the far-end on brake arm 400, so the length of the first kink 1802 is longer than the second kink 1808.
Specifically, the first installing hole 1803 is arranged on the first connection axle 401, and the second installing hole 1809 is arranged on the second connection, and 402, second connects, and 402 are arranged on inside the first connection axle 401.
Specifically, having the first solder joint the 1805, second solder joint 1806 and the 3rd solder joint 1807 between described the first kink 1802 and belt body 1801, the first solder joint 1805 is arranged near the first installing hole 1803；Having the 4th solder joint the 1812, the 5th solder joint 1810 and the 6th solder joint 1811 between described the second kink 1808 and belt body 1801, the 4th solder joint 1812 is arranged near the second installing hole 1809；The described distance between the first solder joint 1805 and the first installing hole 1803 is equal to the distance between the 4th solder joint 1812 and the second installing hole 1809.So, to guarantee the connection tightness near installing hole.
Further, the described distance between the second solder joint 1806 and the 3rd solder joint 1807 is equal to the distance between the 5th solder joint 1810 and the 6th solder joint 1811.So, to guarantee the connection tightness of kink end.
Specifically, between described kink and belt body, the diameter of solder joint is not less than 4mm.So, to guarantee the intensity of welding.
As a kind of preferred implementation of the present utility model, described belt body arranging reinforcement 1804, reinforcement 1804 is arranged along the centrage of belt body, and the length of reinforcement 1804 is not less than the 85% of tape body length.Brake band of the present utility model have employed the mode of welding, shorten the length of junction, the length of reinforcement 1804 can be lengthened as much as possible, avoid producing flexural deformation when brake band roll forming, and open, at brake arm 400, the Zhang Du ensureing brake band when brake band disengages braked wheel.
Brake band of the present utility model adopts and is welded to connect, compared to riveting, save space, reinforcement 1804 length of brake band can lengthen accordingly, thus ensureing brake band rigidity, avoid producing flexural deformation when brake band roll forming, and open, at brake arm, the Zhang Du ensureing brake band when brake band disengages braked wheel.
This utility model implements the particularity for decelerating clutch of washing machine brake band working condition, and the relation between size and the brake band size of reinforcement is optimized restriction.
Why it is defined, it is because brake band in use to include holding tightly and unclamping two states, when braking, brake band is braked arm tractive surface and is subject to very big tensile force, under the promotion of brake arm, bending power is born again when unclamping, this active force gone round and begun again, prolongation along with the time of use, it is possible to brake band generation plastic deformation can be caused, it is impossible to restore to the original state.
And reinforcement specification of the prior art often carries out careful optimized choice, arrange according to common design rule and can not meet requirement, because it is all only consider antitorque and bending resistance that common reinforcement is arranged, but owing to being arc when brake band works, bear again and stretch the power different with bending, it is therefore desirable to the special optimal design-aside of the reinforcement on brake band.
Concrete, as shown in figure 12, arranging described brake band thickness is D0Width is W0.The height H of reinforcement 18040And width C0Thickness D with brake band0Width W0There is certain relation, for the height H of reinforcement 1804 function played, the thickness of brake band is substantially added in local, namely at the torsional strength of local enhancement brake band, if but reinforcement 1804 is highly excessive, not only then can not increase intensity, be also easy to fracture or plastic deformation occurs, the application utility model people finally determines through great many of experiments, and the scope of the described reinforcement 1804 height H of reinforcement is at D0/2≤H≤2D0In.
Further, for the width C of reinforcement 18040Selection and the width W of brake band0There is certain relation, if the width C of reinforcement 18040Excessive, the friction area of brake band and braked wheel can be reduced, affect braking effect.If reinforcement 1804 width is too small, it is possible to intensity does not reach requirement, and it is excessive and rupture to be easily caused local stress.Therefore, the application utility model people finally determines through great many of experiments, described reinforcement 1804 width C0Meet W0/20≤C≤W0/5。
Above-mentioned data are that this utility model technical staff draws the configuration more comparatively optimized in great many of experiments.
Further, described reinforcement 1804 is punch forming structure, and its side is the bulge-structure higher than braking band surface, and opposite side is corresponding concave configuration.
Further, being highest portion in the middle part of described reinforcement 1804, both sides are the symmetrical inclined-plane tilting decline, the inclination alpha of described chamfered surface0Meet, 30 °≤α0≤50°。
Inclination alpha for chamfered surface0Setting, it is considered to intensity and two aspects of toughness, if inclination alpha0Although too small big close to plumbness intensity, but in reinforcement 1804 bending process, reinforcement is easily broken off.If inclination alpha0Although excessive toughness is relatively big, but insufficient strength, and inclination alpha0Cross conference and cause that the excessive effective friction area of too much brake band that takies of reinforcement 1804 bottom area affects braking effect.The application utility model people finally determines through great many of experiments, and the inclination angle a of described chamfered surface meets, 30 °≤α0≤50°。
Further, the adjoining edge of the two ends of described reinforcement and described braking band surface is circular arc, described circular arc fillet R0For 1-1.5D0。
The edge stress that strong muscle both ends are in reinforcement is relatively big, if with adopting right angle, being susceptible to fracture when punch process, therefore adopting the form of fillet.The application utility model people finally determines through great many of experiments, described circular arc fillet R0For 1-1.5D0。
Further, the highly preferred H of described reinforcement0=0.8D0。
This size is based on what the application utility model people finally determined through great many of experiments, the highly preferred H of described reinforcement0=0.8D0。
Further, the described preferred C of reinforcement width0=3W0/20。
This size is based on what the application utility model people finally determined through great many of experiments, the described preferred C of reinforcement width0=3W0/20。
Further, the preferred α of angle of inclined-plane, described reinforcement both sides and brake band plane0=45 °.
This size is based on what the application utility model people finally determined through great many of experiments, the preferred α of angle of inclined-plane, described reinforcement both sides and brake band plane0=45 °.
This utility model provides a kind of decelerating clutch of washing machine with above-mentioned speed-reducing clutch brake band simultaneously.
Embodiment one
As it is shown in figure 1, a kind of decelerating clutch of washing machine, including deceleration train, housing 300 and clutch；Described clutch is click clutch mode, including ratchet and pawl arm 200, pawl arm 200 is arranged to engage/separate the ratchet realizing washing/dehydrating with ratchet；Described deceleration train is arranged in housing 300, and on housing 300, the one end near ratchet arranges bearing block 301；Being additionally provided with detent mechanism in described pawl arm 200, the outer peripheral surface of bearing block 301 is the locating surface of detent mechanism, when detent mechanism contacts with the outer peripheral surface of bearing block 301, can limit pawl arm 200 and move further.
The speed-reducing clutch of the present embodiment, pawl arm 200 is provided with detent mechanism, detent mechanism is with the outer peripheral surface of the bearing block 301 of housing 300 end of deceleration train for locating surface, owing to the requirement on machining accuracy of bearing block 301 is higher, the design of detent mechanism is easily facilitated when bearing block 301 parameter is determined, ensure that pawl arm 200 can effectively position, it is to avoid in pawl arm 200, ratchet is opened in pawl arm 200 and produces skew in reseting procedure, so that it is guaranteed that the clutch effect of clutch.
The location mode of pawl arm 200 of the present utility model is suitable for the decelerating clutch of washing machine of existing employing click clutch mode, including single ratchet wheel pawl type and double; two ratchet wheel pawl type.The present embodiment is further elaborated for the clutch of double; two ratchet wheel pawl types below, but the present embodiment is not limited in the clutch of this pair of ratchet wheel pawl type.
As shown in Fig. 8, Fig. 9 and Fig. 2, clutch includes clutch and embraces spring 1200, upper ratchet 1102, bottom ratchet wheel 1101 and pawl arm 200, upper ratchet 1102 and bottom ratchet wheel 1101 are respectively sleeved at clutch and embrace the two ends of spring 1200 and link with it, pawl arm 200 arranges the first ratchet 202 and the second ratchet 203, the corresponding bottom ratchet wheel 1101 of first ratchet 202, the corresponding upper ratchet 1102 of the second ratchet 203；The first described ratchet 202 engages with bottom ratchet wheel 1101, and when the second ratchet 203 engages with upper ratchet 1102, clutch is embraced spring 1200 and unclamped, realizing washing, the first ratchet 202 separates with bottom ratchet wheel 1101, when the second ratchet 203 separates with upper ratchet 1102, clutch is embraced spring 1200 and is tightened up, it is achieved dehydration；Described detent mechanism engages restriction pawl arm 200 after bottom ratchet wheel the 1101, second ratchet 203 blocks the ratchet 1102 that closes for the first ratchet 202 and moves further.
The speed-reducing clutch of the present embodiment adopts the clutch mode of double; two click, engage bottom ratchet wheel the 1101, second ratchet 203 card at the first ratchet 202 and close after ratchet 1102, detent mechanism contacts with the outer peripheral surface of bearing block 301, define the further motion of pawl arm 200, on the one hand, can ensure that the stability that the first ratchet 202 engages with upper ratchet 1102 with bottom ratchet wheel the 1101, second ratchet 203, on the other hand, pawl arm 200 can be avoided to move further, hook tooth or ratchet are produced crush injury.
It can thus be appreciated that, can the set-up mode of detent mechanism determine click and engage smoothly and separate, therefore, as shown in Fig. 3, Fig. 4 and Fig. 5, described pawl arm 200 includes connecting portion 206 and arm body 207, and connecting portion 206 is fixedly mounted in rotating shaft 500 and rotates therewith, and the free end end of arm body 207 arranges the first ratchet 202, the middle part of arm body arranges the second ratchet 203, and described detent mechanism is arranged between the first ratchet 202 and the second ratchet 203.
Detent mechanism is arranged between the first ratchet 202 and the second ratchet 203 by the present embodiment, it is that the position relationship after being engaged by click determines, because the first ratchet 202 engages bottom ratchet wheel 1101, second ratchet 203 card closes after ratchet 1102, in pawl arm 200, part between the first ratchet 202 and the second ratchet 203 and two ratchets are in the state of concentric, distance between this part and ratchet edge is the shortest, owing to ratchet and bearing block 301 are coaxially disposed, so the distance between part and bearing block 301 between first ratchet 202 and the second ratchet 203 is also the shortest in pawl arm 200.Therefore, detent mechanism is arranged between the first ratchet 202 and the second ratchet 203 by the present embodiment, it is easier to contact with the outer peripheral surface of bearing block 301, it is achieved location.
The connecting portion 206 of the present embodiment has the fixing hole 208 of fixed installation rotating shaft 500.
Specifically, described detent mechanism includes linking arm 201 and locating piece 205, linking arm 201 is one-body molded with the arm body 207 of pawl arm 200, linking arm 201 is arranged on the arm body 207 of pawl arm 200 near the side of housing 300, locating piece 205 is arranged on linking arm 201 to one end of housing 300 extension, and locating piece 205 protrudes the inner surface of linking arm 201 and arranges；Described locating piece 205 has the locating surface that the outer peripheral surface with bearing block contacts.The decelerating clutch of washing machine of the present embodiment only has detent mechanism to protrude to housing 300 place, it is achieved contact location with bearing block 301, can save the material of pawl arm 200, reduces cost.
Further, described linking arm 201 is extended a protrusion plane by the arm body inside side walls of pawl arm 200 towards housing side and is formed, the upper surface protruding plane arranges multiple reinforcement, and reinforcement connects the arm body outside side wall of free end and the pawl arm protruding plane.So, on the basis of bulk strength ensureing detent mechanism, reduce material, reduce manufacturing cost.
Further, described detent mechanism also includes elastic buffering pad, and elastic buffering pad is arranged on the locating surface of locating piece.Owing to detent mechanism is when positioning, locating piece is generally of certain speed impacts outer peripheral surface at bearing block, and therefore, in location contact in an instant, the reverse impulse force of the outer peripheral surface being subject to bearing block is relatively big, very easily causes that locating piece fractures.This utility model can effectively slow down the impulse force of the outer peripheral surface of the bearing block that detent mechanism is subject to when positioning by elastic buffering pad, avoid rupturing between locating piece and linking arm, ensure that the effectiveness of location on the one hand, extend the service life of detent mechanism on the other hand.
Further, described locating piece 205 has an arc surface, and this arc surface can fit with the outer peripheral surface of bearing block 301.So, it is ensured that the locating piece 205 of detent mechanism and the outer peripheral surface laminating compactness of bearing block 301, it is ensured that the stability of location.
Further, the central angle corresponding to arc surface of described locating piece 205 is 20 °～40 °, it is ensured that the size of the locating surface area of locating piece 205, it is ensured that the stability of location.
Yet further, the width of described locating piece 205 is the 1/3～2/3 of the outer ring width of bearing block 301, it is preferable that be 1/2～2/3, further ensures that the size of the locating surface area of locating piece 205, it is ensured that the stability of location.
As a kind of preferred implementation of the present embodiment, described detent mechanism is with when contacting with the outer peripheral surface of bearing block 301, and described ratchet is deep in the tooth of ratchet the degree of depth and meets: the tooth depth of tooth depth～3/4 ratchet of 1/3 ratchet.Thus it is possible, on the one hand, deeply the tooth depth of at least 1/3 ratchet can ensure that effectiveness and the stability of engaging, on the other hand, deeply less than the tooth depth of 3/4 ratchet, it is ensured that being smoothly detached of pawl ratchet, simultaneously, it is to avoid extrude major injury tooth between ratchet and ratchet, it is ensured that service life.
As shown in Figure 6, first ratchet 202 of the present embodiment is fixedly installed, the second described rotating setting of ratchet 203；Arranging the second detent mechanism 209 in described pawl arm 200, the second detent mechanism 209 is arranged near the second ratchet 203, for limiting the rotational angle of the second ratchet 203.Second detent mechanism 209 limits the second ratchet 203 and can only rotate toward the direction, it is ensured that the stability in the large of clutch.Corresponding, the second described ratchet 203 has the location division 210 matched with the second detent mechanism 209.
Being arranged on installation axle 204 as it is shown in fig. 7, the second ratchet 203 is rotating, the one end installing axle 204 is fixed on arm body 207, and the other end installing axle 204 installs fixing nut 211 moving axially with spacing second ratchet 203.Installing and be arranged with back-moving spring 213 in axle 204 or pawl arm 200, back-moving spring 213 one end is only against on arm body 207, and the other end is only against the second ratchet 203 so that the second ratchet 203 resets, it is ensured that normally engage.
Specifically, in described pawl arm 200, reinforcing rib structure is extended in the side near bearing block 301, and reinforcing rib structure has locating surface near the second ratchet 203 place.
The pawl arm 200 of the present embodiment is positioned on the outer peripheral surface of bearing block 301 of housing 300, owing to bearing block 301 is processed for precision drawing, excircle dimension precision is higher, and locating surface is in two ratchet centre positions, can ensure that pawl arm 200 can effectively position well, two detent positions in pawl arm 200 are avoided to open in pawl arm 200 and reseting procedure produces skew, so that it is guaranteed that the clutch effect of clutch.
Embodiment two
As it is shown on figure 3, the fixing hole 208 base plane height L1 of the locating surface distance pawl arm 200 of the detent mechanism of the pawl arm 200 of the present embodiment is 13mm.As shown in Figure 4, the locating surface of the detent mechanism of pawl arm 200 is that H1 is the arc surface centered by 57mm place under the centrage of pawl arm 200 fixing hole 208, arc radius R1 is 20.8mm, both sides angle α is 27.6 °, and H1 is that 57mm place vertical line is symmetrical under fixing hole 208 centrage of pawl arm 200, both sides air line distance H2 is 11.4mm, and thickness L2 is 5mm.
Embodiment three
A kind of washing machine clutch for clutch control method, described washing machine includes clutch, clutch includes clutch and embraces spring, upper ratchet, bottom ratchet wheel, the first ratchet and the second ratchet, the rotation direction embracing spring after described bottom ratchet wheel installation with clutch is identical, upper ratchet embraces the oppositely oriented of spring with clutch after installing, the first described ratchet engages with bottom ratchet wheel, when second ratchet engages with upper ratchet, clutch is embraced spring and is unclamped, realizing washing, the first ratchet separates with bottom ratchet wheel, when the second ratchet separates with upper ratchet, clutch is embraced spring and is tightened up, it is achieved dehydration；Described clutch for clutch control method includes:
Washing machine performs washing/rinsing program, controls the first ratchet and starts with bottom ratchet wheel to engage to start to engage with upper ratchet prior to the second ratchet and carry out.
The washing machine clutch for clutch control method of the present embodiment, when washing/rinsing, controlling the first ratchet to start with bottom ratchet wheel to engage to start to engage with upper ratchet prior to the second ratchet and carry out, so, the first ratchet first realizes with bottom ratchet wheel combining, the rotation direction embracing spring due to bottom ratchet wheel after installing with clutch is identical, now, clutch is embraced spring and is partially opened when bottom ratchet wheel rotates, if now electric motor starting time, washing/rinsing can be realized, clutch will not be caused damage.
Further, washing machine performs washing/rinsing program, and when in the tooth of the first ratchet entrance bottom ratchet wheel, the degree of depth is more than 1/5 tooth depth, the second ratchet starts to engage with upper ratchet.Preferably, when in the tooth of the first ratchet entrance bottom ratchet wheel, the degree of depth is more than 1/3 tooth depth, the second ratchet starts to engage with upper ratchet.So, it is ensured that the first ratchet completes engaging prior to the second ratchet, after the first ratchet completes engaging, though electric motor starting, it is possible to realize washing/rinsing, clutch will not be caused damage.
A kind of washing machine clutch for clutch control method of the present embodiment also includes: washing machine performs dehydration procedure, controls the second ratchet and upper ratchet is initially separated to be initially separated prior to the first ratchet and bottom ratchet wheel and carries out.
In like manner, the second ratchet first separates with upper ratchet, and clutch embraces spring also in open mode, if now during electric motor starting, spring is embraced in clutch will not follow axis of rotation, even if the first ratchet does not separate with bottom ratchet wheel, without there is " beating tooth " phenomenon, clutch will not be caused damage.
Further, washing machine performs dehydration procedure, the second ratchet away from the tooth top of upper ratchet more than 0.5mm time, the first ratchet and bottom ratchet wheel are initially separated.So, it is ensured that the second ratchet completes to separate prior to the first ratchet, after the second ratchet completes separation, even if the first ratchet outstanding split, if electric motor starting, clutch will not be caused damage.
Therefore, the washing machine clutch for clutch control method of the present embodiment, in conjunction with the action relationships of washing machine work process and clutch, makes clutch more stable.
As can be seen from figures 8 and 9, the present embodiment provides a kind of decelerating clutch of washing machine simultaneously, described clutch includes clutch and embraces spring 1200, upper ratchet 1102, bottom ratchet wheel 1101 and pawl arm 200, upper ratchet 1102 and bottom ratchet wheel 1101 are respectively sleeved at clutch and embrace the two ends of spring 1200 and link with it, pawl arm 200 arranges the first ratchet 202 and the second ratchet 203, the corresponding bottom ratchet wheel 1101 of first ratchet 202, the corresponding upper ratchet 1102 of the second ratchet 203；The first described ratchet 202 engages with bottom ratchet wheel 1101, and when the second ratchet 203 engages with upper ratchet 1102, clutch is embraced spring 1200 and unclamped, realizing washing, the first ratchet 202 separates with bottom ratchet wheel 1101, when the second ratchet 203 separates with upper ratchet 1102, clutch is embraced spring 1200 and is tightened up, it is achieved dehydration；The described relative angle between the first ratchet 202 and the second ratchet 203 meets: washing machine performs washing/rinsing program, and the first ratchet 202 starts with bottom ratchet wheel 1101 to engage to start to engage with upper ratchet 1102 prior to the second ratchet 203；Washing machine performs dehydration procedure, and the second ratchet 203 and upper ratchet 1102 are initially separated and are initially separated with bottom ratchet wheel 1101 prior to the first ratchet 202.
The decelerating clutch of washing machine of the present embodiment, by the first ratchet 202 and the second ratchet 203 are arranged suitable angle, make: when washing/rinsing, control the first ratchet 202 to start with bottom ratchet wheel 1101 to engage to start to engage with upper ratchet 1102 prior to the second ratchet 203 and carry out, so, first ratchet 202 first realizes with bottom ratchet wheel 1101 combining, the rotation direction embracing spring 1200 due to bottom ratchet wheel 1101 after installing with clutch is identical, now, clutch is embraced spring 1200 and is partially opened when bottom ratchet wheel 1101 rotates, if now during electric motor starting, washing/rinsing can be realized, clutch will not be caused damage；In like manner, when dehydration, the second ratchet 203 first separates with upper ratchet 1102, and clutch embraces spring also in open mode, if now electric motor starting time, clutch will not be caused damage.
Engage according to sequencing to realize the first ratchet 202 in pawl arm 200 and the second ratchet 203, the first described ratchet 202 has the first acting surface offseted when engaging with bottom ratchet wheel 1101, and the second ratchet 203 has the second acting surface offseted when engaging with upper ratchet 1102；Angle between the first described acting surface and the second acting surface is 135 °～165 °.
As shown in Fig. 3, Fig. 4 and Fig. 5, described pawl arm 200 includes connecting portion 206 and arm body 207, connecting portion 206 is fixedly mounted in rotating shaft 500 and rotates therewith, and the free end end of arm body 207 arranges the first ratchet 202, and the middle part of arm body arranges the second ratchet 203.Connecting portion 206 of the present utility model has the fixing hole 208 of fixed installation rotating shaft 500.
As a kind of preferred implementation of the present embodiment, the first described ratchet 202 is fixedly installed on arm body 200, and the second described ratchet 203 is elastic construction or can move relative to arm body.
For ensureing mould molding effect and controlling the degree of depth of ratchet incision ratchet, it is designed as elastic claw and matches with fixed claw pattern.Two ratchet incision ratchet 1/3～3/4 in an initial condition must be ensured, it is preferable that be 1/2～3/4 place, under dewatering state, when brake arm 400 opened by traction electric machine, two ratchets need to disengage ratchet, when brake arm 400 opens rated travel, ratchet need to disengage ratchet distance >=1.5mm, it is preferable that >=2mm.
First ratchet 202 of the present embodiment is fixedly installed, the second described rotating setting of ratchet 203；Arranging the second detent mechanism in described pawl arm 200, the second detent mechanism is arranged near the second ratchet 203, for limiting the rotational angle of the second ratchet.Second detent mechanism limits the second ratchet 203 and can only rotate toward the direction, it is ensured that the stability in the large of clutch.
Second ratchet 203 is rotating to be arranged on installation axle 204, axle 204 is installed one-body molded with arm body 207, install and axle 204 is arranged with back-moving spring 213, back-moving spring 213 one end is only against on arm body 207, the other end is only against the second ratchet 203, second ratchet 203 is resetted, it is ensured that normally engage.
Specifically, in described pawl arm 200, reinforcing rib structure is extended in the side near bearing block 301, and reinforcing rib structure has locating surface near the second ratchet 203 place.
As shown in Figure 1, Figure 2, shown in Fig. 8 and Fig. 9, in the washing condition, brake arm 400 is in original state, in pawl arm 200, the first ratchet 202 engages with bottom ratchet wheel 1101, second ratchet 203 engages with upper ratchet 1102, promoting clutch to embrace spring 1200 take-off the brake wheel cap 1500 and torque transmissioning shaft set 1300, driven by motor power shaft 1400 rotates through the dynamic output shaft 1000 of deceleration train deceleration strip, it is achieved the effect of washing/rinsing；Under dewatering state, traction electric machine pulls open brake arm 400, pawl arm 200 is opened accordingly, second ratchet 203 separates with upper ratchet 1102, and the first ratchet 202 separates with bottom ratchet wheel 1101, and clutch is embraced spring 1200 and held braking wheel cap 1500 and torque transmissioning shaft set 1300 tightly, simultaneously, brake band 1800 take-off the brake wheel 1700, makes output shaft 1000 and output sleeve 900 make as a whole, realizes dehydration with high speed single direction rotation.
The above is only preferred embodiment of the present utility model, not this utility model is done any pro forma restriction, although this utility model is disclosed above with preferred embodiment, but it is not limited to this utility model, any technical staff being familiar with this patent is without departing within the scope of technical solutions of the utility model, when the technology contents of available above-mentioned prompting is made a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is the content without departing from technical solutions of the utility model, any simple modification above example made according to technical spirit of the present utility model, equivalent variations and modification, all still fall within the scope of this utility model scheme.
Claims (10)
1. a decelerating clutch of washing machine brake band, including belt body, belt body is flat-shaped structure, at least one end of belt body is arranged on brake arm, it is characterized in that, one end that described belt body is connected with brake arm has the kink of reversely bending, forms installing hole, integrally welded structure between free end and the belt body of kink between kink and belt body.
2. a kind of decelerating clutch of washing machine brake band according to claim 1, it is characterised in that there is between described kink and belt body at least three solder joint.
3. a kind of decelerating clutch of washing machine brake band according to claim 1, it is characterized in that, the belt body width at described installing hole place narrows, the free end of kink is identical with belt body width, there are between described kink and belt body three solder joints, two solder joints are arranged on kink and exist together mutually with belt body width, and are symmetricly set on belt body centrage both sides, and another solder joint is arranged on belt body width and narrows place.
4. a kind of decelerating clutch of washing machine brake band according to claim 1, it is characterized in that, described belt body two ends are separately mounted on brake arm, the two ends of belt body are respectively provided with the kink of reversely bending, two ends kink respectively and forms installing hole, integrally welded structure between free end and the belt body of two ends kink between belt body.
5. a kind of decelerating clutch of washing machine brake band according to claim 4, it is characterised in that one end of described belt body is the first kink, and correspondence has the first installing hole；The other end is the second kink, and correspondence has the second installing hole；The first described installing hole is arranged on the far-end on brake arm, and the length of the first kink is longer than the second kink.
6. a kind of decelerating clutch of washing machine brake band according to claim 5, it is characterised in that having the first solder joint, the second solder joint and the 3rd solder joint between described the first kink and belt body, the first solder joint is arranged near the first installing hole；Having the 4th solder joint, the 5th solder joint and the 6th solder joint between described the second kink and belt body, the 4th solder joint is arranged near the second installing hole；Distance between the first described solder joint and the first installing hole is equal to the distance between the 4th solder joint and the second installing hole.
7. a kind of decelerating clutch of washing machine brake band according to claim 5, it is characterised in that the distance between the second described solder joint and the 3rd solder joint is equal to the distance between the 5th solder joint and the 6th solder joint.
8. a kind of decelerating clutch of washing machine brake band according to claim 1, it is characterised in that between described kink and belt body, the diameter of solder joint is not less than 4mm.
9. a kind of decelerating clutch of washing machine brake band according to claim 1-8 any one, it is characterised in that arranging reinforcement on described belt body, reinforcement is arranged along the centrage of belt body, and the length of reinforcement is not less than the 85% of tape body length.
10. the decelerating clutch of washing machine of the speed-reducing clutch brake band that a kind has as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107300.4U CN205382330U (en) | 2016-02-01 | 2016-02-01 | Washing machine speed reduction clutch brake band and speed reduction clutch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620107300.4U CN205382330U (en) | 2016-02-01 | 2016-02-01 | Washing machine speed reduction clutch brake band and speed reduction clutch |
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| Publication Number | Publication Date |
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| CN205382330U true CN205382330U (en) | 2016-07-13 |
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| CN201620107300.4U Active CN205382330U (en) | 2016-02-01 | 2016-02-01 | Washing machine speed reduction clutch brake band and speed reduction clutch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133488A1 (en) * | 2016-02-01 | 2017-08-10 | 浙江三星机电股份有限公司 | Clutch control method and speed reduction clutch for washing machine |
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2016
- 2016-02-01 CN CN201620107300.4U patent/CN205382330U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017133488A1 (en) * | 2016-02-01 | 2017-08-10 | 浙江三星机电股份有限公司 | Clutch control method and speed reduction clutch for washing machine |
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