CN211897469U - Dehydration shaft assembly, clutch and clothes treatment equipment - Google Patents

Abstract

The utility model provides a dehydration axle subassembly, clutch and clothing treatment facility. The dehydration shaft assembly includes: one end of the dewatering shaft is provided with a connecting disc; and the dewatering shaft outer sleeve is sleeved on the connecting disc and is in interference fit with the connecting disc so as to ensure that the dewatering shaft outer sleeve and the dewatering shaft are assembled and fixed. The utility model provides a dehydration axle subassembly, will dewater the assembly of axle overcoat interference pressure equipment on the connection pad of dehydration axle, utilize interference fit to realize that the assembly of dehydration axle overcoat and dehydration axle is fixed, play reliable fixed action to the dehydration axle overcoat, can prevent effectively that the dehydration axle overcoat from taking place to rock, thereby solved among the prior art because of the not hard up problem that leads to the dehydration axle overcoat to rock of screw, and then be favorable to reducing the running noise of machine, and improve the operational reliability of dehydration axle overcoat, and this kind of assembly methods is succinct convenient, consuming time weak point and with low costs.

Description

Dehydration shaft assembly, clutch and clothes treatment equipment

Technical Field

The utility model relates to a clothing treatment facility technical field particularly, relates to a dehydration axle subassembly, clutch and clothing treatment facility.

Background

At present, the dewatering shaft assembly of the clutch of the existing clothes treatment equipment such as a washing machine is composed of a dewatering shaft jacket 2 ' and a dewatering shaft 1 ', as shown in figure 1, the dewatering shaft jacket 2 ' is installed on a connecting disc 11 ' of the dewatering shaft 1 ' through screws, when the screws are loosened, the dewatering shaft jacket 2 ' can shake, the problem of abnormal sound is easily generated, the working reliability of the dewatering shaft jacket 2 ' can be reduced, and the assembling mode is time-consuming and high in cost.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, an object of the present invention is to provide a dewatering shaft assembly.

Another object of the utility model is to provide a clutch including above-mentioned dehydration axle subassembly.

Still another object of the present invention is to provide a laundry treating apparatus including the above clutch.

In order to achieve the above object, the present invention provides a dewatering shaft assembly, including: one end of the dewatering shaft is provided with a connecting disc; and the dewatering shaft outer sleeve is sleeved on the connecting disc and is in interference fit with the connecting disc so as to ensure that the dewatering shaft outer sleeve and the dewatering shaft are assembled and fixed.

The utility model discloses the technical scheme of the first aspect provides a dehydration axle subassembly, will dewater the axle overcoat interference pressure equipment on the connection pad of dehydration axle, it is fixed with the assembly of dehydration axle to utilize interference fit to realize the dehydration axle overcoat, play reliable fixed action to the dehydration axle overcoat, can prevent effectively that the dehydration axle overcoat from taking place to rock, thereby solved among the prior art because of the not hard up problem that leads to the dehydration axle overcoat to rock of screw, and then be favorable to reducing the running noise of machine, and improve the operational reliability of dehydration axle overcoat, and this kind of assembled mode is succinct convenient, consuming time weak point and with low costs.

Additionally, the utility model provides an among the above-mentioned technical scheme dehydration axle subassembly can also have following additional technical characterstic:

in the technical scheme, the connecting disc is provided with a drain hole and a connecting hole, the projection of the drain hole on the connecting disc is partially overlapped with the first reference circle and the second reference circle, the projection of the dehydration shaft on the connecting disc, the first reference circle and the second reference circle form concentric circles, and the projection of the connecting hole on the connecting disc is positioned between the first reference circle and the second reference circle.

The drain hole is used for being matched with a drainage structure of the clothes treatment equipment to realize drainage, and the connecting hole is used for installing fasteners such as screws and the like so as to realize the fastening connection of the connecting disc and the flange plate by utilizing the fasteners and effectively ensure the fixing reliability of the dehydration shaft assembly and the flange plate.

It is worth to be noted that, in the prior art, the outer sleeve of the dewatering shaft needs to be provided with the drain holes and the connecting holes which are arranged in the radial direction (the drain holes are radially outward and the connecting holes are radially inward), the fastening members such as screws sequentially penetrate through the flange plate, the outer sleeve of the dewatering shaft and the connecting disc to fixedly connect the dewatering shaft assembly and the flange plate, the drain holes are located on the radial outer side of the connecting holes, the occupied space is large, the shaft diameter of the dewatering shaft assembly is large, the starting torque of the dewatering shaft is large, the structure of the outer sleeve of the dewatering shaft is complex, the processing technology is complex, and the processing cost.

In the scheme, the dewatering shaft outer sleeve is directly sleeved on the connecting disc and is in interference fit with the connecting disc, so that a drain hole and a connecting hole are not required to be formed in the dewatering shaft outer sleeve, and only the drain hole and the connecting hole are formed in the connecting disc, so that the structure of the dewatering shaft outer sleeve is simplified, the processing technology of the dewatering shaft outer sleeve is simplified, and the processing cost of the dewatering shaft outer sleeve is reduced. And the drain hole and the connecting hole are positioned between the first reference circle and the second reference circle and partially coincide with the first reference circle and the second reference circle, so that the connecting hole does not additionally occupy the radial space of the connecting disc, which is equivalent to the fact that the drain hole and the connecting hole are arranged at intervals along the circumferential direction of the connecting disc.

In the above technical solution, the number of the drain holes is plural, the number of the connection holes is plural, the connection holes are located between two adjacent drain holes, the drain holes are located between two adjacent connection holes, and the drain holes and the connection holes are staggered with each other along the circumferential direction of the connection disc.

The plurality of drain holes can increase a drainage area and ensure a sufficient water passing area, thereby being beneficial to improving the drainage efficiency of the clothes treatment equipment. The connection reliability of the connection disc and the flange plate can be improved through the plurality of connection holes, and then the connection reliability of the flange plate and the dehydration shaft assembly is improved. The plurality of drain holes and the plurality of connecting holes are arranged in a staggered mode along the circumferential direction of the connecting disc, so that uniform drainage is facilitated, and stress balance between the connecting disc and the flange plate is facilitated. Further, a plurality of drain holes are evenly distributed along the circumferential direction of the connecting disc, and a plurality of connecting holes are evenly distributed along the circumferential direction of the connecting disc.

In any one of the above technical solutions, an end face of the other end of the outer sleeve of the dewatering shaft, which is away from the dewatering shaft, forms a mounting end face, an end face of the other end of the connecting disc, which is away from the dewatering shaft, protrudes out of the mounting end face along the axial direction of the dewatering shaft, and an annular step groove for mounting a gasket is formed on the mounting end face and part of the side peripheral face of the connecting disc.

The other end of the dewatering shaft, namely: the end of the dewatering shaft, which is not provided with the connecting disc, is also the end of the dewatering shaft facing the flange. The terminal surface that the cover of the dewatering shaft deviates from the other end of the dewatering shaft forms a mounting end surface, the mounting end surface does not flush with the terminal surface that the terminal pad deviates from the other end of the dewatering shaft, but staggers the setting, and the terminal surface that the terminal pad deviates from the other end of the dewatering shaft protrudes in the mounting end surface along the axial direction of the dewatering shaft, so that an annular step groove is formed between the side circumferential surfaces of the mounting end surface and the terminal pad, and the annular step groove is used for mounting a gasket, so that the sealing flange plate and the assembly of the dewatering shaft.

Meanwhile, the end face of the other end of the connecting disc, which deviates from the dewatering shaft, protrudes out of the mounting end face of the outer sleeve of the dewatering shaft, so that when the dewatering shaft assembly is assembled with the flange disc, the end face of the connecting disc is directly butted with the flange disc and fixed through fasteners such as screws. Therefore, the gasket only needs to be made into an annular shape and is arranged at the annular step groove, and the gap between the sealing flange plate and the dewatering shaft outer sleeve is only needed, so that the structure is simple, and the processing and forming are convenient. In addition, the dewatering shaft assembly mainly bears the pressure applied by the flange plate through the connecting disc, so that a reinforcing structure such as a steel sheet does not need to be designed in the gasket to bear the load, and the gasket is prepared only by adopting a material with certain elastic deformation capacity, such as a rubber gasket, so that the structure of the gasket is simplified, the processing technology of the gasket is simplified, the radial width of the gasket is reduced, the cost of the gasket is reduced, and the service life of the gasket is prolonged.

It is worth to be noted that, in the prior art, a part of the outer sleeve of the dewatering shaft is located between the flange plate and the connecting plate, the outer sleeve of the dewatering shaft is provided with a drain hole and a connecting hole, the gasket is located between the outer sleeve of the dewatering shaft and the flange plate, covers the end face of the outer sleeve of the dewatering shaft, which faces the flange plate, and is provided with a through hole at the position corresponding to the drain hole and the connecting hole, and the fastener penetrates through the connecting hole, the gasket, the outer sleeve of the dewatering shaft and. Because the gasket presss from both sides and establishes between ring flange and the dehydration axle overcoat, bear great pressure, therefore be equipped with the enhancement materials such as steel sheet in the gasket and improve the intensity of gasket, prevent that the gasket from being compressed excessively and take place to become invalid, the consumptive material is many, and processing technology is also comparatively complicated.

In the technical scheme, the depth of the annular step groove is greater than 0 and less than or equal to 3 mm.

The depth of the annular step groove is limited in the range of more than 0 and less than or equal to 3mm, and the problem that the cost is too high due to the fact that the gasket is too thick due to the fact that the annular step groove is too deep or the sealing effect is affected due to the fact that the compression amount of the gasket is too small is avoided. Of course, the depth of the annular stepped groove is not limited to the above range, and may be adjusted as needed in an actual production process.

In the above technical scheme, the mounting end face is provided with at least one positioning groove.

Set up at least one positioning groove on the mounting end face, positioning groove is used for the location arch that sets up on the adaptation gasket, and the protruding embedding positioning groove in of location can prevent the relative dehydration axle overcoat motion of gasket, plays the positioning action to the gasket, guarantees that the gasket installation targets in place. Simultaneously, in use and assembling process, can also play limiting displacement to the gasket, improve the position stability of gasket.

Furthermore, the number of the positioning grooves is multiple, and the plurality of positioning grooves are distributed along the circumferential interval of the outer sleeve of the dewatering shaft, so that the positioning effect and the limiting effect are further improved. Furthermore, a plurality of positioning grooves are uniformly distributed along the circumferential direction of the dewatering shaft outer sleeve, so that the stress balance of the gasket is facilitated, and the stability of the gasket is further improved.

In the above technical solution, the diameter of the positioning groove is in the range of 1mm to 5 mm.

The diameter of the positioning groove is limited in the range from 1mm to 5mm, so that the problem that the positioning bulge is difficult to insert into the positioning groove due to the over-small diameter is avoided, and the problem that the strength of the dewatering shaft outer sleeve is influenced due to the over-large diameter is avoided. Of course, the diameter of the positioning groove is not limited to the above range, and may be adjusted as needed in an actual production process.

In any one of the above technical solutions, the connection pad includes a main body portion and a stop boss connected with the outer side wall of the main body portion, the dehydration shaft jacket includes a jacket main body and a flange connected with the inner side wall of the jacket main body, the stop boss is in interference fit with the jacket main body, the flange is in interference fit with the main body portion, and the flange is in interference fit with the stop boss to limit the dehydration shaft jacket relative to the connection pad axial movement.

The outer side wall of the main body part is provided with the stop boss, the inner side wall of the jacket main body of the dehydration shaft jacket is correspondingly provided with the flanging, the flanging and the stop boss are utilized to stop and abut against the cooperation, the dehydration shaft jacket can be prevented from moving axially relative to the connecting disc, and therefore the fixing reliability of the dehydration shaft jacket and the dehydration shaft is improved. And, when turn-ups and backstop boss end cooperation, show that the dehydration axle overcoat is installed in place, therefore the cooperation of backstop boss and turn-ups can also play the effect of positioning. Meanwhile, the stop boss is in interference fit with the outer sleeve main body, and the flanging is in interference fit with the main body, so that the interference assembly of the connecting disc and the dewatering shaft outer sleeve is realized.

In the above technical scheme, the flange includes a first end face and a second end face, the first end face forms a part of the installation end face, and the second end face is in abutting fit with the stop boss.

The first end face of the flange forms a portion of the mounting end face for mounting a gasket. Compared with the scheme without the flanging, the scheme increases the area of the mounting end face, is favorable for properly increasing the radial size of the gasket, and improves the sealing reliability of the gasket. The second end face is in abutting fit with the stop boss, and abutting fit of the flanging and the stop boss is achieved.

In the above technical solution, the radial width of the second end face is in the range of 0.5mm to 5 mm.

The radial width of the second end face (also the radial width of the flanging) is set in the range of 0.5mm to 5mm, so that the influence on the sealing reliability caused by the over-narrow width of the gasket due to the over-narrow second end face is avoided, and the over-large radial size of the product caused by the over-wide second end face is also avoided.

The utility model discloses technical scheme of second aspect provides a clutch, include: the dewatering shaft assembly of any one of the first aspect aspects; and the flange plate is fixedly connected with a connecting disc of the dewatering shaft assembly through a fastener.

The utility model discloses the clutch that technical scheme of second aspect provided, because of including any one in the first aspect technical scheme dehydration axle subassembly, therefore have all beneficial effects that any above-mentioned technical scheme had, no longer describe herein.

The utility model discloses technical scheme of third aspect provides a clothing treatment facility, include: a dewatering barrel; according to the clutch in the technical scheme of the second aspect, the flange plate of the clutch is fixedly connected with the dewatering barrel.

The utility model discloses the clothing treatment facility that technical scheme of third aspect provided, because of including any one in the second aspect technical scheme the clutch, therefore have all beneficial effects that any one of above-mentioned technical scheme had, no longer describe herein.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic illustration in partial cross-section of a prior art clutch;

FIG. 2 is a schematic top view of a prior art dewatering shaft assembly;

wherein, the correspondence between the reference numbers and the component names in fig. 1 and fig. 2 is:

1 'dehydration shaft, 11' connecting disc, 12 'water discharging hole, 13' connecting hole, 2 'dehydration shaft jacket, 3' fastening piece, 4 'gasket and 5' flange plate.

FIG. 3 is a schematic cross-sectional view of a dewatering shaft assembly according to some embodiments of the present invention;

FIG. 4 is a schematic top view of the dehydration shaft assembly of FIG. 3;

FIG. 5 is a schematic illustration in partial cross-section of a clutch according to some embodiments of the present invention;

fig. 6 is a schematic block diagram of a laundry treating apparatus according to some embodiments of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 3 to 6 is:

the dewatering shaft comprises a dewatering shaft 1, a connecting disc 11, a main body part 111, a stop boss 112, a first reference circle 113, a second reference circle 114, a drain hole 12, a connecting hole 13, a ring-shaped step groove 14, a dewatering shaft jacket 2, a jacket main body 21, a flanging 22, a first end surface 221, a second end surface 222, a mounting end surface 23, a positioning groove 231, a fastening piece 3, a gasket 4, a flange plate 5, a brake disc 6, clothes processing equipment 100, a dewatering barrel 102 and a clutch 104.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A dehydration shaft assembly, a clutch and a laundry treating apparatus according to some embodiments of the present invention will be described with reference to fig. 3 to 6.

The utility model discloses the embodiment of the first aspect provides a dehydration axle subassembly, include: the dewatering shaft 1 and the dewatering shaft jacket 22, as shown in figure 3.

Specifically, one end of the dehydrating shaft 1 is provided with a coupling plate 11, as shown in fig. 3.

The dewatering shaft jacket 22 is sleeved on the connecting disc 11, as shown in fig. 3, and is in interference fit with the connecting disc 11, so that the dewatering shaft jacket 22 is assembled and fixed with the dewatering shaft 1.

The utility model discloses the dehydration axle subassembly that the embodiment of the first aspect provided, will dewater axle overcoat 22 interference pressure equipment on the connection pad 11 of dehydration axle 1, it is fixed with the assembly of dehydration axle 1 to have realized dehydration axle overcoat 22 by utilizing interference fit, play reliable fixed action to dehydration axle overcoat 22, can prevent effectively that dehydration axle overcoat 22 from taking place to rock, thereby the problem of rocking because of the not hard up dehydration axle overcoat 22 that leads to of screw among the prior art has been solved, and then be favorable to reducing the running noise of machine, and improve the operational reliability of dehydration axle overcoat 22, and this kind of assembly method is succinct convenient, consuming time is short and with low costs.

In some embodiments of the present invention, further, the connection plate 11 is provided with a drainage hole 12 and a connection hole 13, as shown in fig. 4. The projection of the drain hole 12 on the connecting disc 11 is partially overlapped with the first reference circle 113 and the second reference circle 114, the projection of the dewatering shaft 1 on the connecting disc 11, the first reference circle 113 and the second reference circle 114 form concentric circles, and the projection of the connecting hole 13 on the connecting disc 11 is positioned between the first reference circle 113 and the second reference circle 114, as shown in fig. 4.

A drain hole 12 and a connecting hole 13 are arranged on the connecting disc 11, and the drain hole 12 is used for realizing drainage in cooperation with a drainage structure of the clothes treatment equipment 100; the connecting holes 13 are used for installing fasteners 3 such as screws and the like, as shown in fig. 5, so that the fastening connection between the connecting disc 11 and the flange 5 is realized by the fasteners 3, and the fixing reliability of the dehydration shaft assembly and the flange 5 is effectively ensured.

It is worth to be noted that, in the prior art, the dewatering shaft housing 2 ' needs to be simultaneously provided with the drain holes 12 ' and the connection holes 13 ' (the drain holes 12 ' are radially outward and the connection holes 13 ' are radially inward), as shown in fig. 1 and fig. 2, the drain holes 12 ' and the connection holes 13 ' are radially arranged, the fastening members 3 such as screws sequentially pass through the flange 5 ', the dewatering shaft housing 2 ' and the connection disc 11 ', so that the dewatering shaft assembly is fixedly connected with the flange 5 ', the drain holes 12 ' are located radially outward of the connection holes 13 ', the occupied space is large, the shaft diameter of the dewatering shaft assembly is large, the starting torque of the dewatering shaft 1 ' is large, and the structure of the dewatering shaft housing 2 ' is complex, so that the processing process is complex and the processing cost is high.

In the scheme, the dewatering shaft outer sleeve 22 is directly sleeved on the connecting disc 11 and is in interference fit with the connecting disc 11, so that the dewatering shaft outer sleeve 22 is not required to be provided with the drain holes 12 and the connecting holes 13, and only the drain holes 12 and the connecting holes 13 are formed in the connecting disc 11, as shown in fig. 3 and 4, so that the structure of the dewatering shaft outer sleeve 22 is simplified, the processing technology of the dewatering shaft outer sleeve 22 is simplified, and the processing cost of the dewatering shaft outer sleeve 22 is reduced. In addition, the drain holes 12 and the connection holes 13 are located between the first reference circle 113 and the second reference circle 114, and the drain holes 12 are partially overlapped with the first reference circle 113 and the second reference circle 114, so that the connection holes 13 do not occupy additional radial space of the connection plate 11, which is equivalent to the drain holes 12 and the connection holes 13 arranged at intervals along the circumferential direction of the connection plate 11.

Wherein, the shapes of the drain hole 12 and the connection hole 13 are not limited, such as a circle, a square, an ellipse, a diamond, a fan, a profile (as shown in fig. 4), etc. The degree to which the drainage holes 12 partially overlap the first reference circle 113 and the second reference circle 114 is not limited, and may overlap a line segment (as shown in fig. 4), or may overlap one or more points.

Further, the number of the water discharge holes 12 is plural, and the number of the connection holes 13 is plural, as shown in fig. 4. The connecting holes 13 are located between two adjacent drain holes 12, the drain holes 12 are located between two adjacent connecting holes 13, and the drain holes 12 and the connecting holes 13 are arranged in a staggered manner along the circumferential direction of the connecting disc 11.

The plurality of drain holes 12 can increase a drain area, ensure a sufficient water passing area, and thus contribute to an improvement in the drainage efficiency of the laundry treating apparatus 100. The plurality of connection holes 13 can improve the connection reliability between the connection plate 11 and the flange 5, and further improve the connection reliability between the flange 5 and the dehydration shaft assembly. The plurality of water discharging holes 12 and the plurality of connecting holes 13 are arranged in a staggered mode along the circumferential direction of the connecting disc 11 (namely, the water discharging holes and the connecting holes are alternately arranged in an ABABAB mode along the circumferential direction), so that uniform water discharging is facilitated, and the stress balance between the connecting disc 11 and the flange plate 5 is facilitated.

Further, the plurality of water drain holes 12 are uniformly distributed along the circumferential direction of the connection disc 11, and as shown in fig. 4, the plurality of connection holes 13 are uniformly distributed along the circumferential direction of the connection disc 11.

In some embodiments of the invention, further, the end surface of the dewatering shaft housing 22 facing away from the other end of the dewatering shaft 1 forms a mounting end surface 23, as shown in fig. 3. The end face of the other end of the connecting plate 11 departing from the dewatering shaft 1 protrudes from the mounting end face 23 along the axial direction of the dewatering shaft 1, as shown in fig. 3, and the mounting end face 23 and part of the side circumference of the connecting plate 11 form an annular step groove 14 for mounting the gasket 4.

The other end of the dewatering shaft 1, namely: the end of the dewatering shaft 1, which is not provided with the connecting disc 11, is also the end of the dewatering shaft 1 facing the flange 5. The terminal surface that dehydration axle overcoat 22 deviates from the other end of dehydration axle 1 forms mounting end face 23, mounting end face 23 does not level with the terminal surface that connection pad 11 deviates from the other end of dehydration axle 1, but staggers the setting, and connection pad 11 deviates from the terminal surface of the other end of dehydration axle 1 along the axial protrusion in mounting end face 23 of dehydration axle 1, make the part of mounting end face 23 and connection pad 11 side form between global and form annular step groove 14, annular step groove 14 is used for mounting gasket 4, with sealing flange 5 and dehydration axle subassembly, prevent to leak.

Meanwhile, the end face of the other end of the connecting disc 11 departing from the dewatering shaft 1 protrudes out of the mounting end face 23 of the dewatering shaft outer sleeve 22, so when the dewatering shaft assembly is assembled with the flange plate 5, the end face of the connecting disc 11 is directly butted with the flange plate 5 and fixed through fasteners 3 such as screws. Therefore, the gasket 4 only needs to be made into a ring shape and is arranged at the annular step groove 14, and the gap between the sealing flange 5 and the dewatering shaft outer sleeve 22 is only needed, so that the structure is simple, and the processing and forming are convenient. In addition, the dewatering shaft assembly mainly bears the pressure applied by the flange plate 5 through the connecting disc 11, so that a reinforcing structure such as a steel sheet is not needed to be designed in the gasket 4 to bear the load, and only a material with certain elastic deformation capacity is needed to be prepared, such as the rubber gasket 4, so that the structure of the gasket 4 is simplified, the processing technology of the gasket 4 is simplified, the cost of the gasket 4 is reduced, the radial width of the gasket 4 is reduced, and the service life of the gasket 4 is prolonged.

It is worth to be noted that, in the prior art, a part of the dewatering shaft outer sleeve 22 is located between the flange plate 5 and the connecting plate 11, the dewatering shaft outer sleeve 22 is provided with a drain hole 12 and a connecting hole 13, the gasket 4 is located between the dewatering shaft outer sleeve 22 and the flange plate 5, covers the end face of the dewatering shaft outer sleeve 22 facing the flange plate 5, is provided with a through hole corresponding to the drain hole 12 and the connecting hole 13, and the fastening member 3 passes through the connecting hole 13, the gasket 4, the dewatering shaft outer sleeve 22 and the connecting plate 11 to realize the fixed connection of the dewatering shaft assembly and the. Because the gasket 4 is clamped between the flange 5 and the dewatering shaft outer sleeve 22 and bears larger pressure, the gasket 4 is internally provided with reinforcing materials such as steel sheets and the like to improve the strength of the gasket 4, the gasket 4 is prevented from being excessively compressed to cause failure, the material consumption is high, and the processing technology is more complicated.

Wherein, the depth H of the annular step groove 14 is more than 0 and less than or equal to 3 mm.

The depth of the annular step groove 14 is limited within the range of more than 0 and less than or equal to 3mm, such as 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm and the like, and the problem that the cost is too high due to the fact that the gasket 4 is too thick due to the fact that the annular step groove 14 is too deep or the sealing effect is affected due to the fact that the compression amount of the gasket 4 is too small is avoided. Of course, the depth of the annular step groove 14 is not limited to the above range, and may be adjusted as needed in an actual production process.

In some embodiments of the present invention, further, at least one positioning groove 231 is disposed on the mounting end surface 23, as shown in fig. 3 and 4.

Set up at least one positioning groove 231 on mounting end face 23, positioning groove 231 is used for the location arch that sets up on the adaptation gasket 4, and the protruding embedding positioning groove 231 of location can prevent that gasket 4 from the relative motion of dehydration axle overcoat 22, plays the positioning action to gasket 4, guarantees that gasket 4 installs and targets in place. Simultaneously, in use and assembling process, can also play limiting displacement to gasket 4, improve gasket 4's positional stability.

Further, the number of the positioning grooves 231 is plural, as shown in fig. 3 and 4. The plurality of positioning grooves 231 are spaced apart from each other in the circumferential direction of the outer cover 22, as shown in fig. 4, and are advantageous for further improving the positioning effect and the position-limiting effect. Further, the plurality of positioning grooves 231 are uniformly distributed along the circumferential direction of the dewatering shaft outer sleeve 22, as shown in fig. 4, which is beneficial to the balance of the gasket stress, thereby further improving the stability of the gasket.

Wherein the diameter D of the positioning groove 231 is in the range of 1mm to 5 mm.

The diameter of the positioning groove 231 is limited within the range of 1mm to 5mm, such as 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm and the like, so that the problem that the positioning protrusion is difficult to insert into the positioning groove 231 due to too small diameter is avoided, and the problem that the strength of the dewatering shaft outer sleeve 22 is influenced due to too large diameter is also avoided. Of course, the diameter of the positioning groove 231 is not limited to the above range, and may be adjusted as needed in an actual production process.

In any of the above embodiments, further, the connecting plate 11 includes a main body portion 111 and a stop boss 112 connected to an outer side wall of the main body portion 111, as shown in fig. 3. The dehydrating shaft housing 22 includes a housing main body 21 and a cuff 22 connected to an inner sidewall of the housing main body 21, as shown in fig. 3. The stop boss 112 is in interference fit with the jacket main body 21, the flange 22 is in interference fit with the main body 111, and the flange 22 is in abutting fit with the stop boss 112, as shown in fig. 3, so as to limit the axial movement of the dewatering shaft jacket 22 relative to the connecting plate 11.

The outer side wall of the body 111 is provided with a stop boss 112, the inner side wall of the jacket body 21 of the dewatering shaft jacket 22 is correspondingly provided with a flange 22, and the flange 22 and the stop boss 112 are used for stopping and matching, so that the dewatering shaft jacket 22 can be prevented from moving axially relative to the connecting disc 11, and the fixing reliability of the dewatering shaft jacket 22 and the dewatering shaft 1 is improved.

And, when the flange 22 is matched with the stopping boss 112 in a stopping way, the dewatering shaft outer sleeve 22 is installed in place, so that the matching of the stopping boss 112 and the flange 22 can also play a role in assembling and positioning.

Meanwhile, the stop boss 112 is in interference fit with the jacket main body 21, and the flange 22 is in interference fit with the main body 111, so that interference fit of the connecting disc 11 and the dewatering shaft jacket 22 is realized.

Further, the cuff 22 includes a first end 221 and a second end 222, as shown in fig. 3. The first end surface 221 forms a part of the mounting end surface 23, and the second end surface 222 is in abutting engagement with the stopper boss 112, as shown in fig. 3.

The first end surface 221 of the flange 22 forms part of the mounting end surface 23 for mounting the gasket 4. Compared with the scheme without the flanging 22, the scheme increases the area of the mounting end face 23, is beneficial to properly increasing the radial size of the gasket 4, and improves the sealing reliability of the gasket 4. The second end surface 222 is in abutting fit with the stopping boss 112, so that the flange 22 is in abutting fit with the stopping boss 112.

Wherein the radial width W of the second end face 222 is in the range of 0.5mm to 5 mm.

The radial width of the second end face 222 (also the radial width of the flange 22) is set within the range of 0.5mm to 5mm, such as 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm and the like, so that the influence on the sealing reliability caused by the too narrow width of the gasket 4 due to the too narrow second end face 222 is avoided, and the overlarge radial size of the product caused by the too wide second end face 222 is also avoided.

An embodiment of the second aspect of the present invention provides a clutch 104, as shown in fig. 5, including: a dewatering shaft assembly and a flange 5 as in any one of the embodiments of the first aspect. The flange 5 is fixedly connected with a connecting plate 11 of the dewatering shaft assembly through a fastener 3, as shown in figure 5.

The embodiment of the second aspect of the present invention provides a clutch 104, which includes any one of the dewatering shaft assemblies of the first aspect of the present invention, so as to have all the advantages of any one of the above embodiments, and therefore, the description thereof is omitted.

Specifically, the other end of the dehydrating shaft 1 is connected with a brake disc 6, and as shown in fig. 5, the brake disc 6 is riveted with the clutch shaft. The flange 5 is fixedly connected with the dewatering barrel 102.

An embodiment of the third aspect of the present invention provides a laundry treating apparatus 100, as shown in fig. 6, including: the dewatering barrel 102 and the clutch 104 as the embodiment of the second aspect, the flange 5 of the clutch 104 is fixedly connected with the dewatering barrel 102.

The embodiment of the third aspect of the present invention provides a clothes treating apparatus 100, which includes the clutch 104 according to any one of the embodiments of the first aspect, so as to have all the advantages of any one of the embodiments described above, and no further description is provided herein.

In any of the above embodiments, the laundry treating apparatus 100 is a washing machine, a dryer, a washer-dryer, or the like.

A specific example will be described below by taking a washing machine as an example, and comparing it with the prior art.

In the prior art, as shown in fig. 1 and 2, a dehydrating shaft assembly of a water-saving clutch for a washing machine, which is composed of a dehydrating shaft housing 2 'and a dehydrating shaft 1', has the following disadvantages:

first, the outer cover 2 ' of the dewatering shaft is installed on the connecting plate 11 ' of the dewatering shaft 1 ' through screws, when the screws are loosened, the outer cover 2 ' of the dewatering shaft can rock, the problem of abnormal sound is easily generated, the working reliability of the outer cover 2 ' of the dewatering shaft can be reduced, and the assembling mode is time-consuming and high in cost. Secondly, the dewatering shaft jacket 2 'needs to be simultaneously provided with the drain holes 12' and the screw mounting holes (namely the connecting holes 13 ') in a radial direction, the occupied space is large, the shaft diameter is large, the starting moment of the dewatering shaft 1' is large, and the structure that the drain holes 12 'and the screw mounting holes are formed in the dewatering shaft jacket 2' leads to the complex machining process and the high machining cost. Thirdly, a rubber gasket 4 'is arranged at the joint of the dewatering shaft 1' and the flange plate 5 ', the gasket 4' covers the whole flange surface, and the middle of the gasket is coated with steel sheets through rubber, so that the material consumption process is complex, and meanwhile, the gasket is provided with a drain hole 12 '(namely a through hole corresponding to the drain hole 12' on the flange plate 5 ') and a screw mounting hole (namely a through hole corresponding to the connecting hole 13'), so that the processing process is complex.

This concrete example provides a dehydration axle subassembly, as shown in fig. 3 and 4, including dehydration axle 1 and dehydration axle overcoat 22, form through the interference pressure equipment of dehydration axle overcoat 22 hole and dehydration axle 1 connection pad 11 excircle, the connection pad 11 upper surface of dehydration axle 1 is higher than dehydration axle overcoat 22 upper surface by 1mm (see fig. 3) for installation annular rubber gasket 4, rubber gasket 4 thickness is 1.5mm, has left 0.5 mm's compressive capacity and has reached sealing action.

4 drain holes 12 and threaded holes (namely connecting holes 13, shown in figure 4) are uniformly distributed on the connecting disc 11 of the dewatering shaft 1, the layout ensures enough water passing area, meets the limitation of space, reduces the outer diameter of the connecting disc 11 of the whole dewatering shaft 1, and greatly reduces the outer diameter of the whole dewatering shaft assembly.

The outer sleeve 22 of the dewatering shaft is press-mounted on the connecting disc 11 of the dewatering shaft 1 through the inner hole of the outer sleeve in an interference manner, so that only the 1.5mm flanging 22 is needed for mounting the rubber gasket 4 (see figure 3), and the drain hole 12 and the threaded hole are completely avoided, so that the structure is simple, the processing is convenient, and the production cost is low. In addition, the upper surface of the dewatering shaft outer sleeve 22 is provided with 4 phi 2.5 unthreaded holes (namely, a circular positioning groove 231, see fig. 4), and four positioning bosses of the rubber gasket 4 are arranged to achieve the positioning effect of the rubber gasket 4.

The upper surface of the connecting disc 11 of the dewatering shaft 1 is directly butted with the flange disc 5 through screws (see fig. 5), the flange disc 5 is connected with the dewatering barrel 102, the structure of the rubber gasket 4 is simplified by the structure of the dewatering shaft 1, the rubber gasket 4 only needs to be made into an annular shape, the drain holes 12 and the threaded holes are completely avoided, the connecting disc 11 stress of the dewatering shaft 1 is applied to the structure of the dewatering shaft 1, the rubber gasket 4 can be completely made of rubber, other stress materials do not need to be wrapped to bear the load, the pure rubber is prevented from being crushed, and therefore the structure of the dewatering shaft 1 also simplifies the processing technology of the rubber gasket 4 and saves the materials.

The lower side of the dehydrating shaft 1 is provided with a brake disc 6, the brake disc 6 is riveted with the clutch shaft, and the inner hole of the small end of the brake disc 6 is in interference press fit with the excircle of the small end of the lower side of the dehydrating shaft 1 (see figure 5).

The working principle is as follows:

the motor passes through the separation and reunion cover, it drives the separation and reunion axle rotation to embrace the spring, the separation and reunion axle is in the same place with 6 riveting of brake disc, brake disc 6 is in the same place with the 1 pressure equipment of dehydration axle, the separation and reunion axle drives brake disc 6, the dehydration axle 1 rotates together, the dehydration axle 1 passes through the screw with ring flange 5 and is in the same place, ring flange 5 links together with dehydration bucket 102, dehydration axle 1 just drives dehydration bucket 102 and rotates, water is from ring flange 5, the wash port 12 of the connection pad 11 of dehydration axle 1 discharges, thereby play the dehydration effect.

The problems that can be solved are as follows:

1. this structure of dehydration axle subassembly forms through the interference pressure equipment of the hole of dehydration axle overcoat 22 and the connection pad 11 excircle of dehydration axle 1, has solved the not hard up problem that arouses dehydration axle overcoat 22 to rock and lead to the abnormal sound of screw, can not reduce the operational reliability of dehydration axle overcoat 22 to this kind of assembly methods is succinct convenient, with low costs.

2. The layout of the drain hole 12 and the screw mounting hole of the dewatering shaft 1 not only ensures enough water passing area, but also meets the limitation of space, reduces the outer diameter of the connecting disc 11 of the whole dewatering shaft 1, reduces the outer diameter of the assembly of the whole dewatering shaft 1 a lot, and achieves the purpose of small starting moment of the dewatering shaft 1.

3. The assembly structure of the dewatering shaft 1 is formed by interference press-fitting, the dewatering shaft outer sleeve 22 only needs the flanging 22 of 1.5mm to be used for installing the rubber gasket 4, and the drain hole 12 and the screw installation hole are successfully avoided, so that the dewatering shaft outer sleeve 22 is simple in structure, and the problems of complex processing technology and high processing cost are solved.

4. The structure that the dewatering shaft 1 and the flange plate 5 are directly butted simplifies the structure of the rubber gasket 4, the rubber gasket 4 only needs to be made into an annular shape, the drain hole 12 and the threaded hole are completely avoided, the rubber gasket can be completely made of rubber materials, and other stress materials do not need to be wrapped to bear loads, so that the structure of the dewatering shaft 1 not only solves the problem of sealing, but also solves the problems of complex structure, material consumption and complex process of the rubber gasket 4.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A dewatering shaft assembly, comprising:

one end of the dewatering shaft (1) is provided with a connecting disc (11);

and the dewatering shaft outer sleeve (2) is sleeved on the connecting disc (11) and is in interference fit with the connecting disc (11), so that the dewatering shaft outer sleeve (2) and the dewatering shaft (1) are assembled and fixed.

2. The dewatering axle assembly according to claim 1,

the dewatering device is characterized in that a drain hole (12) and a connecting hole (13) are formed in the connecting disc (11), the projection of the drain hole (12) on the connecting disc (11) is partially overlapped with a first reference circle (113) and a second reference circle (114), the projection of the dewatering shaft (1) on the connecting disc (11), the first reference circle (113) and the second reference circle (114) form concentric circles, and the projection of the connecting hole (13) on the connecting disc (11) is at least partially located between the first reference circle (113) and the second reference circle (114).

3. The dewatering axle assembly according to claim 2,

the number of the drain holes (12) is multiple, the number of the connecting holes (13) is multiple, the connecting holes (13) are located between two adjacent drain holes (12), the drain holes (12) are located between two adjacent connecting holes (13), and the drain holes (12) and the connecting holes (13) are arranged in a staggered mode along the circumferential direction of the connecting disc (11).

4. The dewatering shaft assembly according to any one of claims 1 to 3,

the end face of the other end of the dewatering shaft (1) deviating from the dewatering shaft jacket (2) forms a mounting end face (23), the end face of the other end of the dewatering shaft (1) deviating from the connecting disc (11) protrudes out of the mounting end face (23) along the axial direction of the dewatering shaft (1), and the mounting end face (23) and the partial side peripheral face of the connecting disc (11) form an annular step groove (14) for mounting a gasket (4).

5. The dewatering shaft assembly according to claim 4,

the mounting end face (23) is provided with at least one positioning groove (231).

6. The dewatering shaft assembly according to any one of claims 1 to 3,

connection pad (11) include main part (111) and with backstop boss (112) that the lateral wall of main part (111) links to each other, dehydration axle overcoat (2) including overcoat main part (21) and with turn-ups (22) that the inside wall of overcoat main part (21) links to each other, backstop boss (112) with overcoat main part (21) interference fit, turn-ups (22) with main part (111) interference fit, just turn-ups (22) with backstop boss (112) end to support the cooperation in order to restrict dehydration axle overcoat (2) are relative connection pad (11) axial displacement.

7. The dewatering axle assembly according to claim 6,

the flanging (22) comprises a first end face (221) and a second end face (222), the first end face (221) forms a part of the installation end face (23), and the second end face (222) is in abutting fit with the stopping boss (112).

8. The dewatering shaft assembly according to claim 7,

the second end face (222) has a radial width in the range of 0.5mm to 5 mm.

9. A clutch, comprising:

the dewatering shaft assembly of any one of claims 1 to 8;

and the flange plate (5) is fixedly connected with a connecting disc (11) of the dehydration shaft assembly through a fastener (3).

10. A laundry treating apparatus, comprising:

a dehydration barrel (102);

the clutch (104) according to claim 9, wherein the flange (5) of the clutch (104) is fixedly connected with the dewatering drum (102).

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