CN210066250U

CN210066250U - Transmission device of washing machine

Info

Publication number: CN210066250U
Application number: CN201920075521.1U
Authority: CN
Inventors: 邵立波
Original assignee: Han Gexin
Current assignee: Han Gexin
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-02-14
Anticipated expiration: 2029-01-16

Abstract

The utility model discloses a washing machine transmission, washing machine transmission includes an output shaft assembly at least, the output shaft assembly includes a planet carrier at least and installs the planetary gear train on the planet carrier, the planet carrier includes planet support body and planet apron, the planet apron is fixed on the planet support body through a fastener, so avoids adopting the riveted mode fixed to solve because of the too big problem in clearance between the too big deformation of planet apron and planet support body atress causes the output shaft to have radial swing and sun gear and planet wheel at the riveting in-process.

Description

Transmission device of washing machine

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of machinery, especially indicate a washing machine's transmission.

[ background of the invention ]

With the utility model discloses chinese patent CN201020278812.x and CN20132048680.3 can refer to relevant prior art, drive shaft and driving shaft cover in the scheme that the patent announced, the drive shaft has drive shaft and the transmission shaft of the coaxial setting of upper and lower direction, the drive shaft is connected with driving motor, its outside sets up the planet wheel subassembly, the planet wheel subassembly has the planet wheel holder, set up on the planet wheel holder and with the sun gear of drive shaft engaged with and the planet wheel of sun gear meshing, driving motor drives the drive shaft rotation like this, the drive shaft drives the sun gear rotation, the sun gear is connected with output shaft to drive output shaft rotates. And the planet carrier includes planet carrier body and planet apron, planetary gear installs on the planet carrier body, and the planet apron is fixed at the planet carrier body through the riveting mode, though can make the planet apron fix on the planet carrier body through the riveting mode, at the riveting in-process, planet apron and planet carrier body atress are too big, can have the deformation, and this deformation can influence the output shaft of fixing on the planet carrier body and the planet wheel subassembly between fixed planet carrier body and the apron, so can cause the output shaft to have radial swing and the too big problem in clearance between sun gear and the planet wheel, and then cause the too big problem of washing machine operating noise and have the drunkenness.

[ Utility model ] content

An object of the utility model is to provide a washing machine transmission for there is the problem of radial swing in the output shaft because of the unable assurance of input shaft and output shaft concentricity in the solution.

In order to achieve the above object, the present invention provides a transmission device for a washing machine, comprising at least an output shaft assembly, the output shaft assembly comprising at least a planet carrier and a planetary gear train mounted on the planet carrier, wherein the planet carrier comprises a planet carrier body and a planet cover plate, and the planet cover plate is fixed on the planet carrier body through a fastener.

Preferably, the fastening member is a bolt, the planet carrier body is provided with a support arm in a protruding manner, the surface of the support arm is provided with a positioning column in a protruding manner, the support arm is provided with a screw hole, the planet cover plate is correspondingly provided with a positioning hole and a through hole, and the bolt penetrates through the through hole of the planet cover plate and is locked in the screw hole of the support arm.

Preferably, the fastening member is a cylinder, the planet carrier body is provided with a support arm in a protruding manner, the surface of the support arm is provided with a positioning column in a protruding manner, the support arm is provided with an accommodating hole, the planet cover plate is correspondingly provided with a positioning hole and a through hole, the cylinder penetrates through the through hole of the planet cover plate and is accommodated in the accommodating hole of the support arm, and the other end of the cylinder is fixed with the planet cover plate.

Preferably, the other end of the column body and the planetary cover plate are fixed into a whole in a welding mode.

Preferably, the output shaft assembly further comprises an output shaft and a transfer shaft, the planetary gear train comprises a sun gear and a planetary gear which are sequentially engaged with each other, the planetary carrier is connected with the output shaft, the sun gear is connected with the transfer shaft, and one end of the transfer shaft protrudes out of the sun gear and is rotationally connected with the planetary carrier.

Preferably, the output shaft is arranged at one end of the planet carrier body, a concave part is arranged on the inner surface of the planet carrier body, a bearing is arranged in the concave part, and one end of the adapter shaft protruding out of the sun gear is connected with the bearing.

Preferably, the planet carrier body is provided with a through hole, one end of the output shaft is fixed at one end of the through hole, and the concave part is arranged at the other end of the through hole and is coaxial with the through hole.

Preferably, the transmission device of the washing machine further comprises an input shaft, and the transfer shaft is connected with the input shaft.

Preferably, the transfer shaft and the input shaft are connected through a spline and a key groove structure.

Preferably, the transfer shaft is connected with the input shaft through a coupling.

Compared with the prior art, the utility model discloses a fastener is fixed the planet apron on the planet support body, so avoid adopting riveted mode fixed to the solution has the deformation to cause the output shaft to have the too big problem in clearance between radial swing and sun gear and the planet wheel because of planet apron and planet support body atress too big at the riveting in-process.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of a transmission device of a washing machine embodying the present invention.

Fig. 2 is a schematic sectional view of a transmission device of a washing machine according to the present invention.

Fig. 3 is a schematic structural view of the planet carrier and the planet cover shown in fig. 1.

[ detailed description ] embodiments

Please refer to fig. 1, fig. 2 and fig. 3, the transmission device of a washing machine according to the present invention includes an input shaft 10 and an output shaft assembly connected to the input shaft 10, wherein the output shaft assembly includes a planetary carrier, a planetary gear train mounted on the planetary carrier, an output shaft 11 and a transfer shaft 25, the planetary gear train includes a sun gear 23 and a planetary gear 22 engaged with each other in sequence, the planetary carrier is connected to the output shaft 11, the sun gear 23 is connected to the transfer shaft 25, and the transfer shaft 25 is connected to the input shaft 10.

Wherein the planet carrier comprises a planet carrier body 20 and a planet cover plate 21, the planet gear 22 is arranged on the planet carrier body 20, and the planet cover plate 21 and the planet carrier body 20 are connected through a fastener. In this embodiment, the fastening member is a first bolt 30, the planet carrier 20 is provided with a support arm 200 in a protruding manner, the surface of the support arm 200 is provided with a positioning post 201 in a protruding manner, the support arm 200 is provided with a screw hole 202, the planet cover 21 is correspondingly provided with a positioning hole 211 and a through hole 210, and the first bolt 30 passes through the through hole 210 of the planet cover 21 and is locked in the screw hole 202 of the support arm 200. Or, in specific implementation, the fastening member may also be a cylinder, the planet carrier body is provided with a support arm in a protruding manner, the surface of the support arm is provided with a positioning column in a protruding manner, the support arm is provided with an accommodating hole (not shown), the planet cover plate is correspondingly provided with a positioning hole and a through hole, the cylinder passes through the through hole of the planet cover plate and is accommodated in the accommodating hole of the support arm, and the other end of the cylinder is fixed to the planet cover plate by welding or the like. Alternatively, a boss (not shown) may be disposed at the periphery of the through hole of the planetary cover plate, and after the post is received in the receiving hole of the support arm through the through hole of the planetary cover plate, the edge of the boss is deformed toward the post to fix the post.

In addition, one end of the transfer shaft 25 protrudes out of the sun gear 23 and is rotatably connected with the planet carrier 20, in a specific implementation, the output shaft 11 is disposed at one end of the planet carrier 20, a concave portion 203 is disposed on an inner surface of the planet carrier 20, a bearing 31 is disposed in the concave portion 203, and one end of the transfer shaft 25 protruding out of the sun gear 23 is connected with the bearing 31. Preferably, the planet carrier 20 has a through hole 204, one end of the output shaft 11 is fixed to one end of the through hole 204 (the two can be fixed by a spline, etc.), and the recess 203 is arranged at the other end of the through hole 204 and is coaxial with the through hole 204. Alternatively, the planet carrier 20 and the output shaft 11 may be fixedly connected by an integral molding.

As shown in the figure, the adapter shaft 25 is connected with the input shaft 10 by a cross spline and a cross key slot structure, wherein one end of the adapter shaft 25 is provided with the cross spline, the input shaft 10 is provided with the cross key slot, and a retaining sleeve 26 is arranged on the periphery of the adapter shaft 25 sleeved with the input shaft 10. Through the spline and the key groove structure, the radial error of the output shaft assembly can be compensated in a tiny amplitude range, so that the concentricity of the output shaft and the input shaft is higher. Alternatively, the transfer shaft 25 is connected to the input shaft 10 in a clearance fit manner or a coupling connection may be used.

In addition, the transmission device of the washing machine also comprises an outer gear ring 13 and an output shaft cover plate 12, wherein the outer gear ring 13 is arranged on the inner side of the output shaft cover plate 12 and is meshed with the planetary gear 22, and the output shaft cover plate 12 is connected with the output shaft sleeve 14. Preferably, the external gear ring 13 and the output shaft cover plate 12 are integrally formed or, as shown in the figure, the external gear ring 13 is provided with a protrusion 130, and the inner side of the output shaft cover plate 12 is provided with a slot 120, which are fixedly connected by the engagement of the two. Furthermore, a groove 121 is disposed on the inner side edge of the output shaft cover plate 12, and a sealing ring 32 is disposed in the groove 121.

In addition, the transmission device of the washing machine further comprises an input shaft cover plate 27, the input shaft 10 is accommodated in the input shaft cover plate 27, and a bearing 28 is arranged on the periphery of the input shaft 10. In addition, the input shaft cover plate 27 and the output shaft cover plate 12 are connected and fixed by a fastener, in a specific implementation, the fastener may be a second bolt 33, and the corresponding input shaft cover plate 27 and the output shaft cover plate 12 are respectively provided with

screw holes

270 and 122, so that the input shaft cover plate 27 and the output shaft cover plate 12 are fixed by the second bolt 33, and the seal ring 32 is fixed between the input shaft cover plate 27 and the output shaft cover plate 12, thereby preventing the lubricant added in the planetary gear train from leaking. In practice, the above-mentioned fasteners are not limited to bolts, and reference may be made to a fixing structure between the planetary cover 21 and the planetary carrier 20.

In addition, in practical implementation, the adapter shaft 25 may be directly connected to a motor (not shown), so that the input shaft 10, the cross spline, the key groove, and the like in the above embodiments are not required.

In addition, the working principle of the planetary gear train and the functions of the common parts of the mechanisms such as the bearing, the C-shaped ring, the gasket, the sealing element and the like in the drawings are described in the chinese patents cn201020278812.x and CN20132048680.3 and the prior art, and are not described in detail here.

It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.

Claims

1. A transmission device of a washing machine is characterized in that: the transmission device of the washing machine at least comprises an output shaft assembly, the output shaft assembly at least comprises a planet carrier and a planetary gear train arranged on the planet carrier, the planet carrier comprises a planet carrier body and a planet cover plate, and the planet cover plate is fixed on the planet carrier body through a fastener.

2. A washing machine transmission as claimed in claim 1, wherein: the fastening piece is a bolt, a support arm is arranged on the planet support body in a protruding mode, a positioning column is arranged on the surface of the support arm in a protruding mode, the support arm is provided with a screw hole, the planet cover plate is correspondingly provided with a positioning hole and a through hole, and the bolt penetrates through the through hole of the planet cover plate and is locked in the screw hole of the support arm.

3. A washing machine transmission as claimed in claim 1, wherein: the fastening piece is a column body, a supporting arm is arranged on the planet support body in a protruding mode, a positioning column is arranged on the surface of the supporting arm in a protruding mode, the supporting arm is provided with an accommodating hole, the planet cover plate is correspondingly provided with a positioning hole and a through hole, the column body penetrates through the through hole of the planet cover plate and is accommodated in the accommodating hole of the supporting arm, and the other end of the column body is fixed with the planet cover plate.

4. A washing machine transmission as claimed in claim 3, wherein: the other end of the column body is fixed with the planet cover plate into a whole in a welding mode.

5. A washing machine transmission as claimed in claim 1, wherein: the output shaft assembly further comprises an output shaft and a switching shaft, the planetary gear train comprises a sun gear and a planetary gear which are sequentially meshed with each other, the planetary carrier is connected with the output shaft, the sun gear is connected with the switching shaft, and one end of the switching shaft protrudes out of the sun gear and is rotationally connected with the planetary carrier.

6. A washing machine transmission as claimed in claim 5, wherein: the output shaft is arranged at one end of the planet carrier body, a concave part is arranged on the inner surface of the planet carrier body, a bearing is arranged in the concave part, and one end, protruding out of the sun gear, of the adapter shaft is connected with the bearing.

7. The washing machine transmission as claimed in claim 6, wherein: the planet carrier body is provided with a through hole, one end of the output shaft is fixed at one end of the through hole, and the concave part is arranged at the other end of the through hole and is coaxial with the through hole.

8. A washing machine transmission as claimed in claim 5, wherein: the transmission device of the washing machine further comprises an input shaft, and the adapter shaft is connected with the input shaft.

9. A washing machine transmission as claimed in claim 8, wherein: the adapter shaft and the input shaft are connected with the key groove structure through splines.

10. A washing machine transmission as claimed in claim 8, wherein: the transfer shaft is connected with the input shaft through a coupler.