CN205382333U - Retarding clutch for washing machine - Google Patents
Retarding clutch for washing machine Download PDFInfo
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- CN205382333U CN205382333U CN201620103174.5U CN201620103174U CN205382333U CN 205382333 U CN205382333 U CN 205382333U CN 201620103174 U CN201620103174 U CN 201620103174U CN 205382333 U CN205382333 U CN 205382333U
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- ratchet
- clutch
- arm
- pawl arm
- pawl
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Abstract
The utility model provides a retarding clutch for washing machine, including gear reducer system, casing and clutching mechanism, clutching mechanism be ratchet pawl separation and reunion mode, including ratchet and pawl arm, set up the pawl that is used for with ratchet block / separation realization washing / dehydration on the pawl arm, gear reducer system set up in the casing, the one end of being close to last ratchet on the casing sets up the bearing frame, the pawl arm on still be provided with positioning mechanism, the outer lane surface of bearing frame be positioning mechanism's locating surface, during the outer lane surface contact of positioning mechanism and bearing frame, can inject the pawl arm and further move. The utility model discloses an outer lane surface that the positioning mechanism of the pawl arm of speed reduction clutch used the the end part of the housing's of gear reducer system bearing frame is the locating surface, because the machining precision of bearing frame has relatively high expectations, the positioning mechanism's of being convenient for more design is guaranteed the pawl arm and is effectively fixed a position, avoid on the pawl arm pawl the pawl arm open and reset process in produce the skew to ensure the separation and reunion effect of clutch.
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.
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.
Pawl arm belongs to the important composition parts in the clutch of decelerating clutch of washing machine, in the washing condition, brake arm is in original state, ratchet incision ratchet in pawl arm, clutch is embraced spring and is unclamped, driven by motor power shaft slows down through planet circular system and is driven impeller to rotate by output shaft again, carries out washing action；Under dewatering state, pawl arm departs from ratchet under brake arm draws, and clutch is embraced spring and held torque transmissioning shaft set and braking wheel cap tightly, makes power shaft and dehydrating shaft make as a whole, and high speed single direction rotation reaches the purpose of centrifuge dehydration.
It follows that ratchet departs from the distance of ratchet when the position of pawl arm directly affects position and the dehydration of ratchet incision ratchet.Existing pawl arm is generally in location, lower house big cylindrical place, but the big cylindrical of lower house is common stretch process, and it is bigger for assembling brake band opening, cause big cylindrical place became uneven, dimensional accuracy is not high, it is simultaneously located at the outer greatly bowlder locating surface of lower house and two ratchet range deviations are excessive, open and reseting procedure is easily caused detent positions in pawl arm and offset, thus causing that clutch can not normally clutch.
In view of this, special proposition this utility model.
Utility model content
In order to solve the problems referred to above, this utility model provides a kind of decelerating clutch of washing machine, specifically, have employed following technical scheme:
A kind of decelerating clutch of washing machine, including deceleration train, housing and clutch；Described clutch is click clutch mode, including ratchet and pawl arm, pawl arm is arranged to engage/separate the ratchet realizing washing/dehydrating with ratchet；Described deceleration train is arranged in housing, and on housing, the one end near ratchet arranges bearing block；Being additionally provided with detent mechanism in described pawl arm, the outer peripheral surface of bearing block is the locating surface of detent mechanism, when detent mechanism contacts with the outer peripheral surface of bearing block, can limit pawl arm and move further.
Further, described clutch includes clutch and embraces spring, upper ratchet, bottom ratchet wheel and pawl arm, and upper ratchet and bottom ratchet wheel are respectively sleeved at clutch and embrace the two ends of spring and link with it, and pawl arm arranges the first ratchet and the second ratchet, first ratchet correspondence bottom ratchet wheel, ratchet in the second ratchet correspondence；The first described ratchet engages with bottom ratchet wheel, and when the second ratchet engages with upper ratchet, clutch is embraced spring and unclamped, it is achieved washing, the first ratchet separates with bottom ratchet wheel, and when the second ratchet separates with upper ratchet, clutch is embraced spring and tightened up, it is achieved dehydration；Described detent mechanism closes for the first ratchet engaging bottom ratchet wheel, the second ratchet card and limits pawl arm after ratchet and move further.
Further, described pawl arm includes connecting portion and arm body, and connecting portion is fixedly mounted in rotating shaft and rotates therewith, and the free end end of arm body arranges the first ratchet, the middle part of arm body arranges the second ratchet, and described detent mechanism is arranged between the first ratchet and the second ratchet.
Further, described detent mechanism includes the arm body by integral forming of linking arm and locating piece, linking arm and pawl arm, and linking arm is arranged on the arm body of pawl arm near the side of housing, locating piece arranges the one end extended on the connecting arm to housing, and locating piece protrudes the inner surface of linking arm and arranges；Described locating piece has the locating surface that the outer peripheral surface with bearing block contacts.
Further, described linking arm is extended a protrusion plane by the arm body inside side walls of pawl arm towards housing side and is formed, and 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.
Further, described detent mechanism also includes elastic buffering pad, and elastic buffering pad is arranged on the locating surface of locating piece.
Further, described locating piece has an arc surface, and this arc surface can fit with the outer peripheral surface of bearing block, it is preferable that the central angle corresponding to the arc surface of described locating piece is 20 °～40 °.
Further, the width of described locating piece is the 1/3～2/3 of the outer ring width of bearing block, it is therefore preferable to 1/2～2/3.
Further, described detent mechanism is with when contacting with the outer peripheral surface of bearing block, 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.
Further, the first described ratchet is fixedly installed, the second described rotating setting of ratchet；Described pawl arm arranges the second detent mechanism, second detent mechanism is arranged near the second ratchet, for limiting the rotational angle of the second ratchet, in described pawl arm, reinforcing rib structure is extended in the side near bearing block, and reinforcing rib structure has locating surface near the second ratchet place.
Speed-reducing clutch of the present utility model, pawl arm is provided with detent mechanism, detent mechanism is with the outer peripheral surface of the bearing block of the shell end of deceleration train for locating surface, owing to the requirement on machining accuracy of bearing block is higher, the design of detent mechanism is easily facilitated when bearing block parameter is determined, ensure that pawl arm can effectively position, it is to avoid in pawl arm, ratchet is opened in pawl arm and produces skew in reseting procedure, so that it is guaranteed that the clutch effect of clutch.
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.
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 of the present utility model is described in detail:
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.
Speed-reducing clutch of the present utility model, 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 but ratchet wheel pawl type and double; two ratchet wheel pawl type.This utility model is further elaborated for the clutch of double; two ratchet wheel pawl types below, but this utility model 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.
Speed-reducing clutch of the present utility model 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 this utility model, 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 this utility model, it is easier to contact with the outer peripheral surface of bearing block 301, it is achieved location.
Connecting portion 206 of the present utility model 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.Decelerating clutch of washing machine of the present utility model 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 utility model, described detent mechanism is with when contacting with the outer peripheral surface of bearing block 301, and it is satisfied that described ratchet is deep in the tooth of ratchet the degree of depth: 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, the first ratchet 202 of the present utility model 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.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.
Pawl arm 200 of the present utility model 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 one
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 two
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, bottom ratchet wheel 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.
Embodiment three
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.
The decelerating clutch of washing machine brake band of the present embodiment, 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.The present embodiment 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 the installing hole place of the present embodiment 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.
The brake band of the present embodiment 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 and Figure 10, 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.The present embodiment 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 embodiment, 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.The brake band of the present embodiment 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.
The brake band of the present embodiment 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.
The present embodiment provides a kind of decelerating clutch of washing machine with above-mentioned speed-reducing clutch brake band simultaneously.
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, including deceleration train, housing and clutch；Described clutch is click clutch mode, including ratchet and pawl arm, pawl arm is arranged to engage/separate the ratchet realizing washing/dehydrating with ratchet；Described deceleration train is arranged in housing, and on housing, the one end near ratchet arranges bearing block；It is characterized in that, described pawl arm is additionally provided with detent mechanism, the outer peripheral surface of bearing block is the locating surface of detent mechanism, when detent mechanism contacts with the outer peripheral surface of bearing block, can limit pawl arm and move further.
2. a kind of decelerating clutch of washing machine according to claim 1, it is characterized in that, described clutch includes clutch and embraces spring, upper ratchet, bottom ratchet wheel and pawl arm, upper ratchet and bottom ratchet wheel are respectively sleeved at clutch and embrace the two ends of spring and link with it, pawl arm arranges the first ratchet and the second ratchet, first ratchet correspondence bottom ratchet wheel, ratchet in the second ratchet correspondence；The first described ratchet engages with bottom ratchet wheel, and when the second ratchet engages with upper ratchet, clutch is embraced spring and unclamped, it is achieved washing, the first ratchet separates with bottom ratchet wheel, and when the second ratchet separates with upper ratchet, clutch is embraced spring and tightened up, it is achieved dehydration；Described detent mechanism closes for the first ratchet engaging bottom ratchet wheel, the second ratchet card and limits pawl arm after ratchet and move further.
3. a kind of decelerating clutch of washing machine according to claim 1 and 2, it is characterized in that, described pawl arm includes connecting portion and arm body, connecting portion is fixedly mounted in rotating shaft and rotates therewith, the free end end of arm body arranges the first ratchet, the middle part of arm body arranges the second ratchet, and described detent mechanism is arranged between the first ratchet and the second ratchet.
4. a kind of decelerating clutch of washing machine according to claim 3, it is characterized in that, described detent mechanism includes linking arm and locating piece, the arm body by integral forming of linking arm and pawl arm, linking arm is arranged on the arm body of pawl arm near the side of housing, locating piece arranges the one end extended on the connecting arm to housing, and locating piece protrudes the inner surface of linking arm and arranges；Described locating piece has the locating surface that the outer peripheral surface with bearing block contacts.
5. a kind of decelerating clutch of washing machine according to claim 4, it is characterized in that, described linking arm is extended a protrusion plane by the arm body inside side walls of pawl arm 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.
6. a kind of decelerating clutch of washing machine according to claim 4, it is characterised in that described detent mechanism also includes elastic buffering pad, and elastic buffering pad is arranged on the locating surface of locating piece.
7. a kind of decelerating clutch of washing machine according to claim 4, it is characterized in that, described locating piece has an arc surface, and this arc surface can fit with the outer peripheral surface of bearing block, preferably, the central angle corresponding to the arc surface of described locating piece is 20 °～40 °.
8. a kind of decelerating clutch of washing machine according to claim 4, it is characterised in that the width of described locating piece is the 1/3～2/3 of the outer ring width of bearing block.
9. a kind of decelerating clutch of washing machine according to claim 1 and 2, it is characterized in that, described detent mechanism is with when contacting with the outer peripheral surface of bearing block, 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.
10. a kind of decelerating clutch of washing machine according to claim 2, it is characterised in that the first described ratchet is fixedly installed, the second described rotating setting of ratchet；Arranging the second detent mechanism in described pawl arm, the second detent mechanism is arranged near the second ratchet, for limiting the rotational angle of the second ratchet；In described pawl arm, reinforcing rib structure is extended in the side near bearing block, and reinforcing rib structure has locating surface near the second ratchet place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103174.5U CN205382333U (en) | 2016-02-01 | 2016-02-01 | Retarding clutch for washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620103174.5U CN205382333U (en) | 2016-02-01 | 2016-02-01 | Retarding clutch for washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205382333U true CN205382333U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620103174.5U Withdrawn - After Issue CN205382333U (en) | 2016-02-01 | 2016-02-01 | Retarding clutch for washing machine |
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| Country | Link |
|---|---|
| CN (1) | CN205382333U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022879A (en) * | 2016-02-01 | 2017-08-08 | 浙江三星机电股份有限公司 | A kind of decelerating clutch of washing machine |
| 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 |
| CN107059339A (en) * | 2017-05-05 | 2017-08-18 | 洛阳辰祥机械科技有限公司 | A kind of design method of integrated decelerating clutch for washing machine motor |
-
2016
- 2016-02-01 CN CN201620103174.5U patent/CN205382333U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022879A (en) * | 2016-02-01 | 2017-08-08 | 浙江三星机电股份有限公司 | A kind of decelerating clutch of washing machine |
| 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 |
| CN107022879B (en) * | 2016-02-01 | 2023-03-10 | 浙江三星机电股份有限公司 | Washing machine speed reduction clutch |
| CN107059339A (en) * | 2017-05-05 | 2017-08-18 | 洛阳辰祥机械科技有限公司 | A kind of design method of integrated decelerating clutch for washing machine motor |
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