CN107142677B - Speed reduction clutch and washing machine - Google Patents
Speed reduction clutch and washing machine Download PDFInfo
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- CN107142677B CN107142677B CN201710447966.3A CN201710447966A CN107142677B CN 107142677 B CN107142677 B CN 107142677B CN 201710447966 A CN201710447966 A CN 201710447966A CN 107142677 B CN107142677 B CN 107142677B
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- clutch
- shaft sleeve
- positioning
- shifting fork
- positioning protrusion
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- 238000005406 washing Methods 0.000 title claims abstract description 30
- 230000009467 reduction Effects 0.000 title claims abstract description 24
- 239000004519 grease Substances 0.000 claims abstract description 37
- 230000001050 lubricating effect Effects 0.000 claims abstract description 33
- 238000013016 damping Methods 0.000 claims description 20
- 230000018044 dehydration Effects 0.000 abstract description 7
- 238000006297 dehydration reaction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/40—Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention relates to a speed reduction clutch device which comprises a shell, a clutch shaft sleeve and a shifting fork, wherein the upper part of the clutch shaft sleeve is connected with the shell, the shifting fork is in contact with the clutch shaft sleeve, relative motion exists between the shifting fork and the clutch shaft sleeve, and lubricating grease is arranged on the contact surface of the shifting fork and the clutch shaft sleeve so as to reduce sliding friction force between the shifting fork and the clutch shaft sleeve. The invention also relates to a washing machine, which is provided with the speed reduction clutch device. According to the invention, the lubricating grease is arranged on the contact surface of the positioning protrusion and the shifting fork, so that the sliding friction force between the shifting fork and the positioning protrusion is reduced, the sliding speed of the shifting fork is accelerated, the up-and-down sliding speed of the clutch shaft sleeve is accelerated, the separation and approach speeds of the dehydration shaft and the rotor are accelerated, the difference between the rotation time and the set time of the washing barrel is reduced, the friction noise is reduced, the clutch reliability is improved, and the user experience effect is improved.
Description
Technical Field
The invention relates to the field of washing machines, in particular to a speed reduction clutch device.
Background
The existing speed reduction clutch device comprises a variable frequency motor consisting of a rotor and a stator and an input shaft, wherein the lower part of the input shaft is connected with the rotor through a nut, an input shaft sleeve is sleeved outside the input shaft, an oil-containing bearing is arranged between the input shaft and the input shaft sleeve, the input shaft can axially rotate relative to the input shaft sleeve, a clutch shaft sleeve is sleeved outside the input shaft sleeve, the clutch shaft sleeve cannot axially rotate relative to the input shaft sleeve but can upwards and downwards slide along the shaft, the clutch shaft sleeve downwards slides, the clutch shaft sleeve is connected with the rotor, the input shaft sleeve rotates along with the rotation of the clutch shaft sleeve, the clutch shaft sleeve upwards slides, the clutch shaft sleeve is separated from the rotor, and the clutch shaft sleeve and the input shaft sleeve do not rotate. The washing machine with the speed reducing clutch includes one pulsator shaft, one dewatering shaft outside the pulsator shaft and connected to the input shaft, and one dewatering shaft connected to the input shaft and rotating with the input shaft during washing.
The speed reduction clutch device further comprises a shifting fork rotating around a shaft, a radial convex positioning protrusion is arranged on the outer wall of the clutch shaft sleeve, the shifting fork is in contact with the positioning protrusion through upward movement and pushes the positioning protrusion upwards to enable the clutch shaft sleeve to slide upwards, then the shifting fork moves downwards and does not push the positioning protrusion upwards any more, and therefore the clutch shaft sleeve slides downwards.
The shifting fork moves up and down through rotating around the shaft, so that in the process of pushing the positioning protrusion upwards by the shifting fork, the shifting fork slides from one side of the positioning protrusion to the other side of the positioning protrusion, in the process, the sliding friction force between the shifting fork and the positioning protrusion can greatly cause the slow sliding speed of the shifting fork, the upward sliding speed of the clutch shaft sleeve is slow, the separation speed of the input shaft sleeve and the rotor is slow, and in the washing machine, the rotating time of the washing tub can be long, so that the use of the washing machine is influenced. On the contrary, in the process that the shifting fork does not push the positioning protrusion upwards any more, the shifting fork is restored to the initial position, in the process, the sliding friction force between the shifting fork and the positioning protrusion is large, so that the sliding speed of the shifting fork is low, the downward sliding speed of the clutch shaft sleeve is low, the approaching speed of the input shaft sleeve and the rotor is low, in the washing machine, the rotating time of the washing barrel is short, the dewatering effect of clothes is influenced, the blocking of the clutch sleeve can be caused, and the washing machine cannot work normally.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention aims to provide a speed reduction clutch device, which is used for reducing the sliding friction force between a shifting fork and a positioning boss, accelerating the sliding speed of the shifting fork, reducing the friction noise and increasing the clutch reliability.
In order to realize the purpose, the invention adopts the following technical scheme:
a speed reduction clutch device comprises a shell, a clutch shaft sleeve and a shifting fork, wherein the upper portion of the clutch shaft sleeve is connected with the shell, the shifting fork is in contact with the clutch shaft sleeve, relative motion exists between the shifting fork and the clutch shaft sleeve, and lubricating grease is arranged on the contact surface of the shifting fork and the clutch shaft sleeve so as to reduce sliding friction force between the shifting fork and the clutch shaft sleeve.
Furthermore, the outer wall of the clutch shaft sleeve is provided with a positioning protrusion protruding in the radial direction and contacting with the shifting fork, the positioning protrusion is provided with an oil storage groove filled with lubricating grease, the oil storage groove is provided with an oil leakage hole, and the lubricating grease flows to the contact surface of the shifting fork and the positioning protrusion from the oil leakage hole.
Furthermore, the oil outlet end of the oil leakage hole is arranged on the contact surface of the shifting fork and the positioning protrusion, so that lubricating grease directly flows to the contact surface of the shifting fork and the positioning protrusion from the oil leakage hole.
Furthermore, the oil inlet end of the oil leakage hole is arranged on the bottom wall of the oil storage tank;
preferably, the oil inlet end of the oil leakage hole is arranged on the outer side of the oil storage tank and is close to the outer side of the positioning protrusion.
Further, the oil storage tank forms the recess for the protruding upper surface undercut of location, the oil storage tank can be a plurality of recesses that the interval set up, also can be annular groove.
Furthermore, the shifting fork is in contact with the lower surface of the positioning protrusion and slides from one side of the positioning protrusion to the other side of the positioning protrusion along the lower surface of the positioning protrusion through upward or downward pivoting, so that the clutch shaft sleeve can move up and down.
Furthermore, the lower part of the clutch shaft sleeve is provided with a first clutch spline, and the upper part of the speed reduction clutch torque shaft sleeve is provided with a corresponding first external spline so as to realize the meshing connection of the clutch shaft sleeve and the speed reduction clutch torque shaft sleeve;
preferably, the outer side of the positioning protrusion is provided with a positioning wall which extends upwards and is connected with the shell, the upper part of the positioning wall is provided with a second clutch spline, and the lower part of the shell is provided with a corresponding positioning spline so as to realize the meshing connection of the clutch shaft sleeve and the shell;
more preferably, the inner wall of the clutch shaft sleeve is provided with a first internal spline so as to realize the meshing connection of the clutch shaft sleeve and the input shaft sleeve of the speed reduction clutch device;
preferably, the second clutch spline on the positioning wall is a tapered tooth with two asymmetric sides, the top of the second clutch spline is arranged in a small arc shape, the positioning spline on the shell is also a tapered tooth with two asymmetric sides, the top of the second clutch spline is also arranged in a small arc shape and corresponds to the tooth shape of the second clutch spline on the positioning wall, so that the positioning wall and the shell are meshed and connected.
Further, a second vibration damping pad is clamped between the positioning protrusion and the shell so as to reduce contact noise of the positioning wall and the shell;
preferably, the second vibration damping pad is disposed above the oil storage tank and seals an opening at an upper portion of the oil storage tank to prevent the grease from overflowing.
Furthermore, be equipped with downwardly extending, with the corresponding reference column that sets up of oil storage tank on the second damping pad, the tip of reference column inserts to inside the oil storage tank to and have the clearance that is used for holding lubricating grease between the oil storage tank diapire, in order to realize the sealed of oil storage tank upper portion open-ended.
The invention also provides a washing machine, and the washing machine is provided with the speed reduction clutch device.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the lubricating grease is arranged on the contact surface of the positioning protrusion and the shifting fork, so that the sliding friction force between the shifting fork and the positioning protrusion is reduced, the sliding speed of the shifting fork is accelerated, the up-and-down sliding speed of the clutch shaft sleeve is accelerated, the separation and approach speeds of the dehydration shaft and the rotor are accelerated, the difference between the rotation time and the set time of the washing barrel is reduced, the friction noise is reduced, the clutch reliability is improved, and the user experience effect is improved.
2. The oil storage groove is arranged on the positioning protrusion to store lubricating grease, and the lubricating grease slowly flows to the contact surface of the shifting fork and the positioning protrusion from the oil leakage hole arranged on the bottom wall of the oil storage groove to play a lubricating role, so that the acting time of the lubricating grease is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is an exploded view showing the construction of a reduction clutch device provided by the present invention;
FIG. 2 illustrates a cross-sectional view of a reduction clutch assembly provided by the present invention;
3-5 are schematic diagrams of various angles of the speed reducing clutch device without the frequency conversion motor provided by the invention;
FIG. 6 is a front view of the reduction clutch device provided with the variable frequency motor;
FIGS. 7-11 are schematic views of various angles of clutch collars provided by the present invention;
FIGS. 12-15 show schematic views of various angles of the torque sleeve provided by the present invention;
FIGS. 16-20 show a schematic view of various angles of a second damping pad provided by the present invention;
FIGS. 21-24 are schematic views of various angles of the mounting bracket provided by the present invention;
FIGS. 25 and 26 are schematic views showing the assembly among the fixing bracket, the clutch sleeve and the torque sleeve provided by the invention;
wherein the names of the components are as follows:
1-impeller shaft, 2-dewatering shaft, 3-upper end shell, 4-lower end shell, 5-brake wheel, 6-compression bar, 7-fixed support, 8-shifting fork, 9-torsion spring, 10-stator, 11-rotor, 12-clutch shaft sleeve, 13-torque shaft sleeve, 14-first bearing, 15-brake band, 16-planetary gear train, 17-input shaft sleeve, 18-second bearing, 19-clutch spring, 20-first damping pad, 21-nut, 22-input shaft, 23-second damping pad, 24-variable frequency motor, 25-oil storage tank, 26-oil leakage hole, 27-positioning column, 28-circular bulge, 29-positioning bulge, 30-positioning wall, 31-shell, 32-second clutch spline, 33-pin shaft, 34-first clutch spline, 35-first internal spline, 36-second internal spline, 37-positioning spline, 38-first external spline;
it should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments are clearly and completely described below, and the following embodiments are used for illustrating the present invention and are not used for limiting the scope of the present invention.
As shown in fig. 1 to 26, the embodiment of the present invention introduces a deceleration clutch device, which includes a housing 31, a clutch sleeve 12 whose upper portion is connected to the housing 31, and a shift fork 8 in contact with the clutch sleeve 12, wherein there is relative movement between the shift fork 8 and the clutch sleeve 12, and grease is provided on the contact surface between the shift fork 8 and the clutch sleeve 12 to reduce the sliding friction between the shift fork 8 and the clutch sleeve 12.
Specifically, the outer wall of the clutch shaft sleeve 12 is provided with a positioning protrusion 29 which protrudes radially and contacts with the shifting fork 8, the positioning protrusion 29 is provided with an oil storage tank 25 filled with lubricating grease, the oil storage tank 25 is provided with an oil leakage hole 26, and the lubricating grease flows to the contact surface of the shifting fork 8 and the positioning protrusion 29 from the oil leakage hole 26.
The shifting fork 8 is in contact with the lower surface of the positioning protrusion 29 and slides along the lower surface of the positioning protrusion 29 from one side of the positioning protrusion 29 to the other side of the positioning protrusion 29 through upward or downward pivoting, so as to realize the up-and-down movement of the clutch shaft sleeve 12.
The speed reduction clutch device comprises a variable frequency motor 24 consisting of a rotor 11 and a stator 10 and an input shaft 22, the lower part of the variable frequency motor is connected with the rotor 11 through a nut 21, an input shaft sleeve 17 is sleeved outside the input shaft 22, an oil-containing bearing is arranged between the input shaft 22 and the input shaft sleeve 17, the input shaft 22 can axially rotate relative to the input shaft sleeve 17, a clutch shaft sleeve 12 is sleeved outside the input shaft sleeve 17, the clutch shaft sleeve 12 cannot axially rotate relative to the input shaft sleeve 17 but can axially slide upwards and downwards along the shaft, the clutch shaft sleeve 12 slides downwards, the clutch shaft sleeve 12 is connected with the rotor 11, the input shaft sleeve 17 rotates along with the rotation of the clutch shaft sleeve 12, the clutch shaft sleeve 12 slides upwards, the clutch shaft sleeve 12 is separated from the rotor 11, and the clutch shaft sleeve 12 and the input shaft sleeve 17 do not rotate. The washing machine with the speed reducing clutch includes one pulsator shaft, one dewatering shaft outside the pulsator shaft and connected to the input shaft 22 for rotating in the opposite direction with the rotation of the input shaft 22 during washing, one dewatering shaft connected to the input shaft sleeve 17 for rotating with the rotation of the input shaft sleeve 17 during dewatering.
Specifically, the inner wall of the clutch sleeve 12 is provided with a first internal spline 35 to realize the meshing connection between the clutch sleeve 12 and the input sleeve 17, so that the input sleeve 17 rotates along with the rotation of the clutch sleeve 12.
The speed reduction clutch device also comprises a shifting fork 8 rotating around a shaft, the shifting fork 8 is contacted with the positioning protrusion 29 through upward movement and pushes the positioning protrusion 29 upwards to enable the clutch shaft sleeve 12 to slide upwards, then the shifting fork 8 moves downwards and does not push the positioning protrusion 29 upwards any more, and therefore the clutch shaft sleeve 12 slides downwards.
Since the shifting fork 8 moves up and down by rotating around the shaft, in the process that the shifting fork 8 pushes the positioning protrusion 29 upwards, the shifting fork 8 slides from one side of the positioning protrusion 29 to the other side of the positioning protrusion 29, in the process, the sliding friction force between the shifting fork 8 and the positioning protrusion 29 is large, so that the sliding speed of the shifting fork 8 is slow, the upward sliding speed of the clutch shaft sleeve 12 is slow, the speed of separating the input shaft sleeve 17 from the rotor 11 is slow, and in the washing machine, the rotating time of the washing tub is long, and the use of the washing machine is influenced. On the contrary, in the process that the shift fork 8 does not push the positioning protrusion 29 upwards any more, the shift fork 8 returns to the initial position, and in the process, the sliding friction force between the shift fork 8 and the positioning protrusion 29 is large, so that the sliding speed of the shift fork 8 is slow, the sliding speed of the clutch shaft sleeve 12 is slow, the approaching speed of the input shaft sleeve 17 and the rotor 11 is slow, and in the washing machine, the rotating time of the washing tub is short, and the dewatering effect of the clothes is affected. More seriously, when the friction force between the clutch sleeve 12 and the positioning protrusion 27 is large, the clutch sleeve 12 may be biased by force, so that it cannot effectively slide up and down, and a retardation phenomenon occurs, so that the washing machine cannot normally operate.
According to the invention, the lubricating grease is arranged on the contact surface of the positioning protrusion 29 and the shifting fork 8, so that the sliding friction force between the shifting fork 8 and the positioning protrusion 29 is reduced, the sliding speed of the shifting fork 8 is increased, the up-and-down sliding speed of the clutch shaft sleeve 12 is increased, the separation and approach speeds of the dehydration shaft 2 and the rotor 11 are increased, the difference between the rotation time and the set time of the washing barrel is reduced, and the experience effect of a user is improved. The invention realizes the storage of the lubricating grease by arranging the oil storage groove 25 on the positioning projection 29, and the lubricating grease slowly flows to the contact surface of the shifting fork 8 and the positioning projection 29 from the oil leakage hole 26 arranged on the bottom wall of the oil storage groove 25 to play a lubricating role, thereby prolonging the acting time of the lubricating grease.
The oil outlet end of the oil leakage hole 26 is arranged on the contact surface of the shifting fork 8 and the positioning protrusion 29, so that lubricating grease directly flows to the contact surface of the shifting fork 8 and the positioning protrusion 29 from the oil leakage hole 26; preferably, the oil outlet end of the oil leakage hole 26 is arranged on the initial contact surface of the shifting fork 8 and the positioning protrusion 29.
The specification of the contact end of the shifting fork 8 and the positioning protrusion 29 is larger than that of the oil leakage hole 26, so that the shifting fork 8 can slide on the surface of the positioning protrusion 29.
The oil inlet end of the oil leakage hole 26 is arranged on the bottom wall of the oil storage tank 25; preferably, the oil inlet end outer periphery of the oil leakage hole 26 is an inclined surface formed by gradually expanding outward from bottom to top.
The oil storage tank 25 is a groove formed by downwards sinking the upper surface of the positioning protrusion 29, and can be a plurality of grooves arranged at intervals or an annular groove.
Example one
As shown in fig. 1 to 26, in the present embodiment, a torque sleeve 13 is sleeved outside the input shaft 22, the torque sleeve 13 is not axially rotatable relative to the input shaft 22, the torque sleeve 13 is connected with the clutch sleeve 12 to achieve the connection between the clutch sleeve 12 and the rotor 11, and a lower portion of the torque sleeve 13 is connected with the rotor 11, and preferably, a first damping pad 20 is disposed between the lower portion of the torque sleeve 13 and the rotor 11 to reduce noise generated by the rotor 11 during rotation and impact on the speed reduction clutch device.
The inner wall of the torque shaft sleeve 13 is provided with a second internal spline 36 to realize the meshing connection between the torque shaft sleeve 13 and the input shaft 22, so that the torque shaft sleeve 13 rotates along with the rotation of the input shaft 22, the upper part of the torque shaft sleeve 13 is provided with a first external spline 38, and the lower part of the clutch shaft sleeve 12 is provided with a corresponding first clutch spline 34 to realize the meshing connection between the two, so that the clutch shaft sleeve 12 rotates along with the rotation of the torque shaft sleeve 13. Wherein, the tooth profile inclined angle of the first clutch spline 34 is 0-10 degrees, and the left side of the tooth profile is designed into a larger fillet, so that the first clutch spline is more easily and reliably meshed with the first external spline 38. The tooth-shaped surface inclination angle of the first external spline 38 is 0-10 degrees, and the right side of the tooth shape is designed into a larger round angle, so that the first external spline is more easily and reliably meshed with the first clutch spline 34.
The outer wall of the torque sleeve 13 is provided with a radially protruding engaging portion, the first external spline 38 is arranged on the engaging portion, the upper portion of the torque sleeve 13 is connected with the oil-containing bearing, and preferably, a third damping pad is arranged between the upper portion of the torque sleeve 13 and the lower portion of the oil-containing bearing so as to reduce noise generated by the rotor 11 during rotation and impact on the speed reduction clutch device.
Example two
As shown in fig. 1-26, in the present embodiment, a housing 31 composed of an upper housing 3 and a lower housing 4 is disposed above the clutch sleeve 12, a fixing bracket 7 is disposed on the housing 31, a positioning wall 30 extending upward is disposed on the outer circumference of the positioning protrusion 29, and after the clutch sleeve 12 slides upward, the positioning wall 30 is connected with the fixing bracket 7, specifically, a positioning spline 37 is disposed on the lower portion of the fixing bracket 7, and a corresponding second clutch spline 32 is disposed on the upper portion of the positioning wall 30 to achieve the meshing connection therebetween, so as to prevent the washing tub from rotating during washing in the washing machine. Wherein, the tooth-shaped end of the positioning spline 37 is designed into a small arc, the angle between the left side surface of the tooth shape and the vertical surface is 0-10 degrees, and the angle between the right side surface of the tooth shape and the vertical surface is 10-30 degrees. The tooth-shaped end part of the second clutch spline 32 is designed into an arc, the angle between the right side surface of the tooth shape and the vertical surface is 0-10 degrees, and the angle between the left side surface of the tooth shape and the vertical surface is 10-30 degrees. The second clutch spline 32 on the positioning wall 30 is a tapered tooth with two asymmetric sides, the top of the second clutch spline is arranged in a small arc shape, the positioning spline 37 on the fixed bracket 7 is also a tapered tooth with two asymmetric sides, the top of the second clutch spline is also arranged in a small arc shape, and the second clutch spline 32 is arranged corresponding to the tooth shape of the second clutch spline 32 on the positioning wall 30, so that the positioning wall 30 and the fixed bracket 7 are engaged and connected.
The clutch sleeve 12 is externally sleeved with an elastically telescopic clutch spring 19, the lower part of the clutch spring 19 is connected with the positioning boss 29, and the upper part of the clutch spring 19 is connected with the outer shell 31 to provide a downward sliding force to the clutch sleeve 12.
The stator 10 is mounted on the lower end shell 4.
The middle part of the shifting fork 8 is connected with the fixed support 7 through a pin shaft 33, one end of the shifting fork 8 is used for being in contact with the positioning protrusion 29, the other end of the shifting fork 8 is used for being in contact with a pressure lever 6 arranged on the shell 8, and whether the pressure lever 6 applies force to the shifting fork 8 or not is controlled by a traction motor so as to realize the rotation of the shifting fork 8. A round bulge 28 is arranged at the shifting fork 8 which is contacted with the pressure lever 6, so that the action is smooth.
A torsion spring 9 is arranged between the shifting fork 8 and the fixed support 7, so that the shifting fork 8 without stress is restored to the initial state.
EXAMPLE III
As shown in fig. 1 to 26, in the present embodiment, the oil inlet end of the oil leakage hole 26 is provided outside the oil reservoir 25 and near the outside of the positioning projection 29.
This prevents the grease in the oil reservoir 25 from being thrown out of the oil reservoir 25 when the clutch sleeve 12 rotates.
The specification of the oil leakage hole 26 is smaller than that of the oil storage tank 25, so that the lubricating grease slowly flows to the contact surface of the positioning protrusion 29 and the shifting fork 8.
A plurality of oil storage tanks 25 are uniformly distributed on the positioning projection 29;
preferably, the oil leakage hole 26 is a through hole having a circular cross section.
The second vibration-damping pad 23 is sandwiched between the positioning projection 29 and the housing 31 to reduce contact noise of the positioning wall 30 with the housing 31, noise generated during rotation of the rotor 11, and impact on the reduction clutch device.
The second vibration damping pad 23 is disposed above the oil reservoir 25 and seals an opening at an upper portion of the oil reservoir 25 to prevent the grease from overflowing.
The second vibration damping pad 23 is provided with a positioning column 27 which extends downwards and is arranged corresponding to the oil storage tank 25, the end part of the positioning column 27 is inserted into the oil storage tank 25, and a gap for containing lubricating grease is formed between the end part of the positioning column 27 and the bottom wall of the oil storage tank 25, so that the upper opening of the oil storage tank 25 is sealed.
The positioning posts 27 arranged as described above simultaneously achieve the fixing of the second damping pad 23.
The second damping pad 23 is annularly disposed.
The above arrangement improves the sealing effect of the upper opening of the oil reservoir 25.
Preferably, the outer periphery of the second vibration damping pad 23 is connected in contact with the positioning wall 30.
The above arrangement achieves the fixation of the second vibration damping pad 23.
Example four
As shown in fig. 1 to 26, in the present embodiment, the washing machine equipped with the deceleration clutch device includes a pulsator shaft 1, a dehydration shaft 2 is sleeved outside the pulsator shaft 1, a brake wheel 5 is sleeved outside the dehydration shaft 2, a lower portion of the brake wheel 5 is gradually expanded outward, an upper portion of an input hub 17 is also gradually expanded outward, a lower portion of the brake wheel 5 is connected to an upper portion of the input hub 17 and forms a sealed chamber, so that the dehydration shaft 2 rotates with the rotation of the input hub 17, and a lower portion of the pulsator shaft 1 is connected to an upper portion of an input shaft 22 through a planetary gear train 16 provided inside the chamber, so that the pulsator shaft 1 rotates with the rotation of the input shaft 22. The impeller shaft 1, the dewatering shaft 2, the brake wheel 5 and the input shaft sleeve 17 are all arranged inside the shell 31.
And a brake band 15 is arranged outside the brake wheel 5, and whether the brake band 15 embraces the brake wheel 5 is controlled by a traction motor.
When the brake belt 15 embraces the brake wheel 5 and the clutch shaft sleeve 12 slides upwards, the dewatering shaft 2 can not rotate; when the brake band 15 releases the brake wheel 5, the clutch shaft housing 12 slides downward, and then the dehydrating shaft 2 rotates.
The dehydration operation direction is clockwise rotation.
The reduction clutch device is also provided with a first bearing 14 and a second bearing 18 as shown in fig. 2.
EXAMPLE five
The embodiment describes a clutch shaft sleeve 12, the middle part of the outer wall of which is provided with a positioning protrusion 29 which protrudes radially and can be contacted with a shifting fork 8, the periphery of the positioning protrusion 29 is provided with a positioning wall 30 which extends upwards, the positioning wall 30, the positioning protrusion 29 and the outer wall of the upper part of the clutch shaft sleeve 12 form a groove for containing lubricating grease, and the bottom wall of the groove is provided with at least one oil leakage hole 26, so that the lubricating grease flows to the contact surface of the positioning protrusion 29 and the shifting fork 8, and the sliding friction force between the shifting fork 8 and the positioning protrusion 29 is reduced. The oil leakage hole 26 is arranged outside the positioning projection 29.
Be equipped with radial convex, the joint portion that is located recess diapire top on the outer wall of clutch shaft sleeve 12 upper portion, clutch shaft sleeve 12 upper portion outside cover is equipped with first sealed pad, and the downside and the joint portion joint of first sealed pad, the periphery of first sealed pad is inconsistent with location wall 30 to constitute the confined space who supplies lubricating grease to hold.
The first sealing gasket avoids the overflow of the lubricating grease.
EXAMPLE six
The embodiment describes a clutch shaft sleeve, which is provided with a positioning protrusion 27 protruding radially and used for contacting with a shifting fork 8, the positioning protrusion 27 is provided with an oil storage tank 25 recessed downwards and used for containing lubricating grease, and the bottom wall of the oil storage tank 25 is provided with an oil leakage hole 26, so that the lubricating grease flows to the contact surface of the positioning protrusion 27 and the shifting fork 8, and the sliding friction force between the shifting fork 8 and the positioning protrusion 27 is reduced. The oil leak hole 26 is provided outside the oil reservoir 25 and near the positioning wall 30.
The protruding 29 top of location is equipped with the second and seals up, and the second is sealed to be equipped with downwardly extending, with the corresponding reference column 27 that sets up of oil storage tank 25 on sealing up, and the tip of reference column 27 inserts to inside the oil storage tank 25 to and have the clearance that is used for holding lubricating grease between the oil storage tank 25 diapire, in order to realize that oil storage tank 25 upper portion open-ended is sealed. The second sealing gasket is annularly arranged.
The first vibration damping pad 20, the second vibration damping pad 23, the first sealing pad and the second sealing pad are all made of elastic rubber or elastic PVC materials.
When the brake band 15 releases the brake wheel 5, the clutch shaft sleeve 12 slides downwards to be separated from the positioning wall 30, and the dewatering shaft 2 is in a free state.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A speed reduction clutch device comprises a shell (31), a clutch shaft sleeve (12) the upper part of which is connected with the shell (31) and a shifting fork (8) which is in contact with the clutch shaft sleeve (12), wherein the shifting fork (8) and the clutch shaft sleeve (12) have relative motion, and the speed reduction clutch device is characterized in that lubricating grease is arranged on the contact surface of the shifting fork (8) and the clutch shaft sleeve (12) to reduce the sliding friction force between the shifting fork (8) and the clutch shaft sleeve (12);
a positioning protrusion (29) which protrudes in the radial direction and is in contact with the shifting fork (8) is arranged on the outer wall of the clutch shaft sleeve (12), an oil storage tank (25) filled with lubricating grease is arranged on the positioning protrusion (29), an oil leakage hole (26) is formed in the oil storage tank (25), and the lubricating grease flows to the contact surface of the shifting fork (8) and the positioning protrusion (29) from the oil leakage hole (26);
the oil outlet end of the oil leakage hole (26) is arranged on the contact surface of the shifting fork (8) and the positioning protrusion (29), so that lubricating grease directly flows to the contact surface of the shifting fork (8) and the positioning protrusion (29) from the oil leakage hole (26);
the oil inlet end of the oil leakage hole (26) is arranged on the bottom wall of the oil storage tank (25); the oil inlet end of the oil leakage hole (26) is arranged on the outer side of the oil storage tank (25) and is close to the outer side of the positioning protrusion (29); the oil storage tank (25) is a groove formed by downwards sinking the upper surface of the positioning protrusion (29).
2. The deceleration clutch device according to claim 1, wherein the shift fork (8) contacts with the lower surface of the positioning protrusion (29) and slides along the lower surface of the positioning protrusion (29) from one side of the positioning protrusion (29) to the other side of the positioning protrusion (29) by pivoting upward or downward to realize the up-and-down movement of the clutch collar (12).
3. The deceleration clutch device according to claim 1, characterized in that, the deceleration clutch device comprises a variable frequency motor (24) composed of a rotor (11) and a stator (10) and an input shaft (22) with the lower part connected with the rotor (11) through a nut (21), the input shaft (22) is sleeved with a torque sleeve (13);
the clutch shaft sleeve is characterized in that a first clutch spline (34) is arranged at the lower part of the clutch shaft sleeve (12), and a corresponding first external spline (38) is arranged at the upper part of the torque shaft sleeve (13) so as to realize the meshing connection of the clutch shaft sleeve (12) and the torque shaft sleeve (13).
4. The decelerating clutch device according to claim 3, characterized in that the outer side of the positioning projection (29) is provided with a positioning wall (30) extending upwards and connected with the housing (31), the upper part of the positioning wall (30) is provided with a second clutch spline (32), and the lower part of the housing (31) is provided with a corresponding positioning spline (37) to realize the meshing connection of the clutch sleeve (12) and the housing (31).
5. The deceleration clutch device according to claim 4, wherein the input shaft (22) is externally fitted with an input sleeve (17); and a first internal spline (35) is arranged on the inner wall of the clutch shaft sleeve (12) to realize the meshing connection of the clutch shaft sleeve (12) and the input shaft sleeve (17).
6. A decelerating clutch device according to claim 5, characterised in that the second clutch splines (32) on the positioning wall (30) are tapered teeth with asymmetric sides, the tops of which are arranged in a small circular arc, and the positioning splines (37) on the outer casing (31) are tapered teeth with asymmetric sides, the tops of which are also arranged in a small circular arc and are arranged in correspondence with the teeth of the second clutch splines (32) on the positioning wall (30) to facilitate the meshing connection between the positioning wall (30) and the outer casing (31).
7. Deceleration clutch assembly according to one of claims 4 to 6, characterized in that a second damping washer (23) is clamped between the positioning lug (29) and the housing (31) in order to reduce the contact noise of the positioning wall (30) with the housing (31).
8. Deceleration clutch assembly according to claim 7, characterized in that the second damping washer (23) is arranged above the oil reservoir (25) and seals the opening in the upper part of the oil reservoir (25) in order to avoid the escape of grease.
9. The decelerating clutch device according to claim 8, wherein the second damping pad (23) is provided with a positioning column (27) extending downwards and corresponding to the oil storage tank (25), and an end of the positioning column (27) is inserted into the oil storage tank (25) and has a gap for containing grease with the bottom wall of the oil storage tank (25) to seal the upper opening of the oil storage tank (25).
10. A washing machine, characterized in that it is equipped with a deceleration clutching device as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710447966.3A CN107142677B (en) | 2017-06-14 | 2017-06-14 | Speed reduction clutch and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710447966.3A CN107142677B (en) | 2017-06-14 | 2017-06-14 | Speed reduction clutch and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107142677A CN107142677A (en) | 2017-09-08 |
| CN107142677B true CN107142677B (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710447966.3A Active CN107142677B (en) | 2017-06-14 | 2017-06-14 | Speed reduction clutch and washing machine |
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| Country | Link |
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| CN (1) | CN107142677B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112144238B (en) * | 2019-06-27 | 2022-11-25 | 青岛海尔洗衣机有限公司 | Speed reduction clutch device of washing machine |
| CN112144239B (en) * | 2019-06-27 | 2022-12-09 | 青岛海尔洗衣机有限公司 | Speed reduction clutch device of washing machine |
| CN112144237B (en) * | 2019-06-27 | 2023-06-20 | 青岛海尔洗衣机有限公司 | Washing machine speed reduction clutch device and washing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201599342U (en) * | 2009-12-28 | 2010-10-06 | 无锡民联轴承制造有限公司 | Connecting device for release sleeve and release fork of clutch bearing |
| CN105316904B (en) * | 2014-06-30 | 2019-01-22 | 青岛海尔洗衣机有限公司 | A kind of arrangement of clutch and speed-reducing clutch of speed-reducing clutch |
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2017
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| CN107142677A (en) | 2017-09-08 |
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Effective date of registration: 20210926 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |
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