CN215990475U

CN215990475U - Motor assembly

Info

Publication number: CN215990475U
Application number: CN202121667122.8U
Authority: CN
Inventors: 洪自信
Original assignee: Jiangmen Zixin Motor Co ltd
Current assignee: Jiangmen Zixin Motor Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-03-08
Anticipated expiration: 2031-07-21

Abstract

The utility model discloses a motor assembly, which comprises a motor main body and a shell, wherein an output shaft of the motor main body is connected with a driving gear; the shell is arranged at the output end of the motor main body, an output shaft of the motor main body extends into the shell, and the driving gear is positioned in the shell; install first transmission layer, second transmission layer and output layer in proper order in the casing: the driving gear is meshed with the first planetary gears of the first transmission layer; the second planet carrier of the second transmission layer is fixedly arranged on the first planet carrier of the first transmission layer, and is provided with a driven gear which is meshed with the plurality of second planet gears; the third planet carrier of the output layer is arranged on the second planet carrier, and the output part of the third planet carrier extends out of the shell; the inner wall of the shell is provided with a first tooth portion and a second tooth portion which are arranged in the circumferential direction, the first tooth portion is meshed with the plurality of first planet wheels, and the second tooth portion is meshed with the plurality of second planet wheels. The utility model has compact integral structure, small volume, convenient installation and use and low noise.

Description

Motor assembly

Technical Field

The utility model relates to the technical field of motors, in particular to a motor assembly.

Background

The motor generally needs to cooperate the gear box to use to reduce rotational speed and increase torque satisfy the demand of mechanical equipment work, and current gear box structure is complicated, and occupation space is big when cooperation motor uses, the installation of not being convenient for, and it is big to export gyration clearance, and the noise that leads to producing is big, the use of not being convenient for.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the motor assembly provided by the utility model has the advantages of compact structure and low noise.

An electric machine assembly according to an embodiment of the present invention includes: the output shaft of the motor main body is connected with a driving gear; the shell is arranged at the output end of the motor main body, an output shaft of the motor main body extends into the shell, and the driving gear is positioned in the shell; install in proper order in the casing: the first transmission layer comprises a first planet carrier and a plurality of first planet wheels, the first planet carrier is rotatably arranged on the shell, the first planet wheels are rotatably arranged on the first planet carrier and are arranged along the circumferential direction of the driving gear, the driving gear is meshed with the first planet wheels, and the gear ratio of the driving gear to the first planet wheels is smaller than 1; the second transmission layer comprises a second planet carrier and a plurality of second planet wheels, the second planet carrier is fixedly arranged on the first planet carrier, the second planet carrier is provided with a driven gear, the driven gear is overlapped with a central shaft of the driving gear, the plurality of second planet wheels are rotatably arranged on the second planet carrier and are circumferentially arranged along the driven gear, the driven gear is meshed with the plurality of second planet wheels, and the gear ratio of the driven gear to the second planet wheels is smaller than 1; the output layer comprises a third planet carrier, the third planet carrier is arranged on the second planet carrier, one side of the third planet carrier is provided with a plurality of positioning pins penetrating through the second planet wheels, the other side of the third planet carrier is provided with an output part, and the output part extends out of the shell; the inner wall of the shell is provided with a first tooth portion and a second tooth portion which are arranged in the circumferential direction, the first tooth portion is meshed with the plurality of first planet wheels, and the second tooth portion is meshed with the plurality of second planet wheels.

The technical scheme at least has the following beneficial effects: through two sets of transmission layers of output lug connection at motor body to two sets of transmission layers cooperate with the first tooth portion and the second tooth portion of casing respectively, realize the effect of speed reduction increase square, and overall structure is compact, and is small, and occupation space is little, and the installation of being convenient for is used, and the output shaft of motor body and two sets of transmission layers between the cooperation closely, the noise is little.

According to some embodiments of the utility model, the housing comprises a bottom shell and a cover body, the output end of the motor main body is provided with a first positioning shaft, the first positioning shaft is provided with a shaft hole, the output shaft of the motor main body penetrates through the shaft hole, the bottom shell is provided with a first through hole matched with the first positioning shaft, the bottom shell is mounted on the motor main body, the cover body is provided with a second through hole, the output part penetrates through the second through hole, and the cover body is in clamping fit with the bottom shell.

According to some embodiments of the utility model, the bottom shell is provided with a side plate arranged circumferentially, one of the side plate and the cover body is provided with a blocking position, and the other is provided with a blocking block matched with the blocking position.

According to some embodiments of the utility model, the outer wall of the cover body is provided with two shifting plates, the two shifting plates are symmetrical about the center of the cover body, and the shifting plates are vertically arranged.

According to some embodiments of the utility model, a first step portion is provided in the cover, the inner cavity of the cover forms a first inner cavity and a second inner cavity, the inner diameter of the second inner cavity is smaller than the inner diameter of the first inner cavity, the first tooth portion is provided on the cavity wall of the first inner cavity, and the second tooth portion is provided on the cavity wall of the second inner cavity.

According to some embodiments of the utility model, a second step is provided in the cover, so that the inner cavity of the cover forms a third inner cavity, the inner diameter of the third inner cavity is smaller than the inner diameter of the second inner cavity, and the third inner cavity is provided with a bearing matched with the output part.

According to some embodiments of the utility model, the first planet carrier is provided with a third through hole cooperating with the first positioning shaft, the first planet carrier being rotationally cooperating with the first positioning shaft.

According to some embodiments of the utility model, a plurality of second positioning shafts are arranged on a side of the first planet carrier, which is away from the motor main body, and are arranged along the circumferential direction of the driving gear, and the second planet carrier is provided with a fourth through hole matched with the second positioning shafts.

According to some embodiments of the utility model, the second planet wheel comprises a first gear and a second gear, the first gear and the second gear being fixedly connected and coaxial, the first gear being in mesh with the driven gear and the second gear being in mesh with the second toothing.

According to some embodiments of the utility model, the motor body is provided as a low voltage motor.

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

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 structural diagram of a motor assembly according to an embodiment of the present invention;

FIG. 2 is an exploded view of a motor assembly according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a motor assembly in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a cover in an embodiment of the present invention.

Reference numerals:

a motor main body 100; a drive gear 110; a first positioning shaft 120; a shaft hole 121;

a housing 200; a bottom case 210; a first through hole 211; side plates 212; a clamp position 213; a cover 220; a second through hole 221; a latch 222; a dial plate 223; a first stepped portion 224; a first lumen 225; the first tooth 2251; a second interior cavity 226; a second tooth 2261; a second stepped portion 227; a third lumen 228; a bearing 229;

a first transmission layer 300; a first carrier 310; a third through hole 311; a second positioning shaft 312; a first planet 320;

a second transmission layer 400; a second planet carrier 410; a driven gear 411; a fourth through-hole 412; a shaft portion 413; a second planet gear 420; a first gear 421; a second gear 422;

an output layer 500; a third carrier 510; the positioning pins 511; and an output unit 512.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 4, an embodiment of the present invention provides a motor assembly, including a motor body 100, an output shaft of the motor body 100 is connected to a driving gear 110, an output end of the motor body 100 is provided with a housing 200, two ends of the housing 200 are respectively provided with a first through hole 211 and a second through hole 221, the output shaft of the motor body 100 is inserted into the first through hole 211 and extends into the housing 200, the driving gear 110 is located in the housing 200, a first transmission layer 300, a second transmission layer 400 and an output layer 500 are sequentially installed in the housing 200 along a direction departing from the motor body 100, the first transmission layer 300 includes a first planet carrier 310 and three first planet gears 320, the first planet carrier 310 is rotatably installed in the housing 200, a rotation axis of the first planet carrier 310 coincides with a rotation axis of the driving gear 110, the three first planet gears 320 are rotatably installed on the first planet carrier 310 and arranged along a circumferential direction of the driving gear 110, the driving gear 110 is meshed with the three first planet gears 320, and the gear ratio of the driving gear 110 to the first planet gears 320 is less than 1; the second transmission layer 400 comprises a second planet carrier 410 and three second planet wheels 420, the second planet carrier 410 is fixedly mounted on the first planet carrier 310, three shaft portions 413 are arranged between the second planet carrier 410 and the first planet carrier 310, the first planet wheels 320 are rotatably mounted on the shaft portions 413, a driven gear 411 is arranged on one side of the second planet carrier 410, which is far away from the first planet carrier 310, the driven gear 411 is overlapped with the central axis of the driving gear 110, the three second planet wheels 420 are rotatably mounted on the second planet carrier 410 and are arranged along the circumferential direction of the driven gear 411, the driven gear 411 is meshed with the plurality of second planet wheels 420, and the gear ratio of the driven gear 411 to the second planet wheels 420 is smaller than 1; the output layer 500 includes a third planet carrier 510, one side of the third planet carrier 510 is provided with a plurality of positioning pins 511 penetrating through the second planet gears 420, so that the third planet carrier 510 is connected to the second planet carrier 410, the other side of the third planet carrier 510 is provided with an output part 512, the output part 512 is a rod structure, the output part 512 penetrates through the second through hole 221 and extends out of the housing 200, and the output part 512 is used for connecting an external member, such as a stirrer, so as to drive the stirrer to rotate to realize stirring and the like; the inner wall of the housing 200 is further provided with a first tooth 2251 and a second tooth 2261 arranged circumferentially, the first tooth 2251 meshing with the three first planet wheels 320 and the second tooth 2261 meshing with the three second planet wheels 420.

When the motor assembly works, the motor main body 100 drives the driving gear 110 to rotate, the driving gear 110 drives the three first planet gears 320 to rotate, the first planet gears 320 are matched with the first tooth parts 2251 of the housing 200 by virtue of the first planet gears 320, the three first planet gears 320 simultaneously rotate around the central axis of the driving gear 110, so as to drive the first planet carrier 310 and the second planet carrier 410 to rotate, namely, the driven gear 411 can be driven to rotate, the driven gear 411 drives the three second planet gears 420 to rotate, the third planet gears 420 are matched with the second tooth parts 2261 of the housing 200 by virtue of the three second planet gears 420, the three second planet gears 420 simultaneously rotate around the central axis of the driven gear 411, so as to drive the third planet carrier 510 to rotate, namely, the output part 512 is driven to rotate, so as to realize speed reduction and torque increase output, the motor assembly has a compact integral structure, a small volume, a small occupied space, and is convenient to install and use, and the output shaft of the motor main body 100 is tightly matched with the two transmission layers, the noise is low.

Referring to fig. 2, it can be understood that the housing 200 includes a bottom case 210 and a cover 220, the output end of the motor main body 100 is provided with a first positioning shaft 120, the first positioning shaft 120 has a shaft hole 121, the output shaft of the motor main body 100 is inserted in the shaft hole 121, a first through hole 211 is provided in the bottom case 210 and is matched with the first positioning shaft 120, thereby facilitating the positioning and installation of the bottom case 210 in the motor main body 100, generally speaking, the bottom case 210 is fixed to the motor main body 100 by a through-hole screw, a second through hole 221 is provided in the cover 220, an output part 512 is inserted in the second through hole 221, the cover 220 is matched with the bottom case 210 in a clamping manner, the housing 200 is provided with a split structure, and is installed in a clamping manner, which is convenient to assemble, and has a simple structure and is easy to implement.

Referring to fig. 2, it can be understood that the bottom case 210 is provided with a side plate 212 arranged circumferentially, one of the side plate 212 and the cover 220 is provided with a detent 213, and the other is provided with a latch 222 engaged with the detent 213, specifically, the side plate 212 is provided with two detents 213, the two detents 213 are located at two sides of the bottom case 210, the detent 213 is provided with a baffle structure extending toward the center of the bottom case 210, the cover 220 is provided with two detents 222 one-to-one corresponding to the detents 213, and the latch 222 protrudes toward the outer side of the cover 220, so that the latch 222 is limited by the baffle structure, and the bottom case 210 and the cover 220 are engaged and engaged, and the structure is simple, easy to implement and convenient to assemble.

Referring to fig. 2, it can be understood that two shifting plates 223 are disposed on the outer wall of the cover 220, the two shifting plates 223 are symmetrical with respect to the center of the cover 220, and the shifting plates 223 are vertically arranged, so that when the cover 220 is assembled with the bottom case 210, the cover 220 is conveniently rotated through the shifting plates 223, and the fixture blocks 222 are clamped in the clamping positions 213, thereby further facilitating the assembly.

Referring to fig. 4, it can be understood that the first step portion 224 is disposed in the housing 220, so that the inner cavity of the housing 220 forms a first inner cavity 225 and a second inner cavity 226, the inner diameter of the second inner cavity 226 is smaller than the inner diameter of the first inner cavity 225, the first tooth portion 2251 is disposed on the wall of the first inner cavity 225, and the second tooth portion 2261 is disposed on the wall of the second inner cavity 226, thereby reducing the volume of the housing 220 and making the overall structure of the motor assembly more compact.

Referring to fig. 4, it can be understood that a second step portion 227 is disposed in the cover 220, the second step portion is located on a side of the first step portion facing away from the motor main body 100, so that the inner cavity of the cover 220 forms a third inner cavity 228, the inner diameter of the third inner cavity 228 is smaller than that of the second inner cavity 226, and a bearing 229 matched with the output portion 512 is installed in the third inner cavity 228, thereby further reducing the volume of the cover 220, making the overall structure of the motor assembly more compact, and meanwhile, through the matching of the bearing 229 and the output portion 512, reducing resistance and output loss.

Referring to fig. 2, it can be understood that the first planet carrier 310 is provided with a third through hole 311 engaged with the first positioning shaft 120, and the first planet carrier 310 is rotatably engaged with the first positioning shaft 120, so that the first planet carrier 310 is rotatably installed in the housing 200, and the structure is simple and easy to implement.

Referring to fig. 2, it can be understood that a side of the first planet carrier 310 facing away from the motor main body 100 is provided with a plurality of second positioning shafts 312, the plurality of second positioning shafts 312 are arranged along a circumferential direction of the driving gear 110, and the second planet carrier 410 is provided with a fourth through hole 412 matched with the second positioning shafts 312, so that the second planet carrier 410 is positioned and mounted on the first planet carrier 310, and the first planet carrier 310 and the second planet carrier 410 can synchronously rotate to realize transmission.

Referring to fig. 2 and 3, it can be understood that the second planetary gear 420 includes a first gear 421 and a second gear 422, the first gear 421 and the second gear 422 are fixedly connected and coaxial, the first gear 421 is engaged with the driven gear 411, and the second gear 422 is engaged with the second tooth 2261, generally, the outer diameter of the second gear 422 is smaller than the outer diameter of the first gear 421 to match the second tooth 2261 disposed on the cavity wall of the second inner cavity 226, and further reduce the speed and increase the torque, and the structure is simple and easy to implement.

It can be understood that the motor body 100 is configured as a low voltage motor, for example, a 12 volt motor, and has low noise, which effectively reduces the overall noise of the motor assembly, and is convenient to use, safe and reliable.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. An electric machine assembly, comprising:

the output shaft of the motor main body is connected with a driving gear;

the shell is arranged at the output end of the motor main body, an output shaft of the motor main body extends into the shell, and the driving gear is positioned in the shell;

install in proper order in the casing:

the first transmission layer comprises a first planet carrier and a plurality of first planet wheels, the first planet carrier is rotatably arranged on the shell, the first planet wheels are rotatably arranged on the first planet carrier and are arranged along the circumferential direction of the driving gear, the driving gear is meshed with the first planet wheels, and the gear ratio of the driving gear to the first planet wheels is smaller than 1;

the second transmission layer comprises a second planet carrier and a plurality of second planet wheels, the second planet carrier is fixedly arranged on the first planet carrier, the second planet carrier is provided with a driven gear, the driven gear is overlapped with a central shaft of the driving gear, the plurality of second planet wheels are rotatably arranged on the second planet carrier and are circumferentially arranged along the driven gear, the driven gear is meshed with the plurality of second planet wheels, and the gear ratio of the driven gear to the second planet wheels is smaller than 1;

the output layer comprises a third planet carrier, the third planet carrier is arranged on the second planet carrier, one side of the third planet carrier is provided with a plurality of positioning pins penetrating through the second planet wheels, the other side of the third planet carrier is provided with an output part, and the output part extends out of the shell;

the inner wall of the shell is provided with a first tooth portion and a second tooth portion which are arranged in the circumferential direction, the first tooth portion is meshed with the plurality of first planet wheels, and the second tooth portion is meshed with the plurality of second planet wheels.

2. An electric machine assembly as claimed in claim 1, wherein: the casing includes drain pan and the cover body, the output of motor main part is provided with first locating shaft, first locating shaft has the shaft hole, motor main part's output shaft wears to locate the shaft hole, the drain pan be provided with first locating shaft complex first through-hole, the drain pan install in motor main part, the cover body is provided with the second through-hole, the output wears to locate the second through-hole, the cover body with the cooperation of drain pan joint.

3. An electric machine assembly as claimed in claim 2, wherein: the bottom shell is provided with side plates which are circumferentially arranged, one of the side plates and the cover body is provided with a clamping position, and the other side plate is provided with a clamping block matched with the clamping position.

4. A motor assembly as claimed in claim 3, wherein: the outer wall of the cover body is provided with two shifting plates, the two shifting plates are symmetrical about the center of the cover body, and the shifting plates are vertically arranged.

5. An electric machine assembly as claimed in claim 2, wherein: the inner cavity of the cover body forms a first inner cavity and a second inner cavity, the inner diameter of the second inner cavity is smaller than that of the first inner cavity, the first tooth part is arranged on the cavity wall of the first inner cavity, and the second tooth part is arranged on the cavity wall of the second inner cavity.

6. An electric machine assembly as claimed in claim 5, wherein: the cover is internally provided with a second step part, so that the inner cavity of the cover forms a third inner cavity, the inner diameter of the third inner cavity is smaller than that of the second inner cavity, and the third inner cavity is provided with a bearing matched with the output part.

7. An electric machine assembly as claimed in claim 2, wherein: the first planet carrier is provided with a third through hole matched with the first positioning shaft, and the first planet carrier is matched with the first positioning shaft in a rotating mode.

8. An electric motor assembly as set forth in claim 7, wherein: one side that first planet carrier deviates from motor body is provided with a plurality of second location axle, and is a plurality of second location axle is followed the circumference of driving gear is arranged, the second planet carrier be provided with second location axle complex fourth through-hole.

9. An electric machine assembly as claimed in claim 1, wherein: the second planet gear comprises a first gear and a second gear, the first gear and the second gear are fixedly connected and coaxial, the first gear is meshed with the driven gear, and the second gear is meshed with the second tooth part.

10. An electric machine assembly as claimed in claim 1, wherein: the motor main body is a low-voltage motor.