CN218863243U

CN218863243U - Driving device

Info

Publication number: CN218863243U
Application number: CN202223451838.1U
Authority: CN
Inventors: 张芳; 肖鸿伟; 熊泽健; 杜成顺
Original assignee: Huayi Power Technology Dongguan Co ltd
Current assignee: Huayi Power Technology Dongguan Co ltd
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-04-14
Anticipated expiration: 2032-12-21

Abstract

The utility model relates to a driving device, including motor (20) and fixed connection to gear reduction mechanism (50) of the one end of motor (20), gear reduction mechanism (50) include: a center wheel (51) fixed to an output shaft (41) of the motor (20) and rotating coaxially therewith; a plurality of planetary wheels (53) surrounding the central wheel (51) and meshing with the central wheel (51); a planet carrier (54) for mounting the plurality of planet wheels (53), the planet carrier (54) being fixed with the first housing (31) of the electric machine (20); the outer gear ring (61), outer gear ring (61) is including encircleing first ring body (62) of a plurality of planet wheel (53), first ring body (62) inner wall is provided with ring gear (63) with planet wheel (53) meshing. The utility model provides high drive arrangement's whole rigidity has reduced the risk that takes place deformation or damage.

Description

Driving device

[ technical field ] A

The utility model relates to a drive field, more specifically relates to a drive arrangement.

[ background of the invention ]

A common drive arrangement includes a motor and a gearbox, which is typically mounted to one end of the motor. In some cases, when the load is large or the acting force of the load is perpendicular to the connecting line direction of the motor and the gear box, the driving device is easy to deform or damage. Therefore, a need exists for an improved solution.

[ Utility model ] content

The utility model discloses a reduction drive arrangement takes place deformation or impaired risk for an objective.

Therefore, the utility model provides a driving device, including motor and fixed connection to the gear reduction mechanism of the one end of motor, gear reduction mechanism includes:

the central wheel is fixed with an output shaft of the motor and coaxially rotates;

a plurality of planet wheels surrounding the center wheel and meshing with the center wheel;

the planet carrier is used for mounting the planet wheels and is fixed with the first shell of the motor;

the outer gear ring, outer gear ring includes first ring body, first ring body encircles a plurality of planet wheels, first ring body inner wall be provided with the ring gear with the planet wheel meshing, outer gear ring is in can encircle under the effect of planet wheel the centre wheel rotates.

In an embodiment of the present invention, the planet carrier includes a second ring body, a first connecting plate, and a second connecting plate; the first connecting plate and the second connecting plate are respectively positioned at two ends of the second ring body, and the outer ends of the first connecting plate and the second connecting plate are connected to the second ring body; the planets are supported by shafts mounted to the first and second connecting plates, and a portion of the planets are exposed outside the second ring body to mesh with the ring gear.

In an embodiment of the present invention, the first casing is a cylinder with an open end, and includes a third ring body and a bottom plate located at one end of the third ring body; the planet carrier is connected with the bottom plate and forms a one-piece whole with the first housing.

In an embodiment of the present invention, the bottom plate is provided with a bearing for supporting the output shaft of the motor.

In an embodiment of the present invention, the center wheel is integrally formed at one end of the output shaft.

In one embodiment of the present invention, the motor includes a base including an end cover plate mounted to the open end of the first housing.

In an embodiment of the present invention, the base further includes a supporting cylinder extending from the middle of the end cover plate, and one end of the output shaft of the motor extends into the supporting cylinder and is supported by the supporting cylinder.

In an embodiment of the present invention, the stator of the motor includes a stator core fixedly sleeved to the periphery of the support cylinder and a stator winding wound around the stator core; the rotor of the motor is accommodated in the inner side of the first shell and comprises a second shell and a permanent magnet, the second shell is in a cylindrical shape with one open end and comprises a fourth ring body and a cover plate located at one end of the fourth ring body, the center of the cover plate is fixedly sleeved on the output shaft of the motor and rotates synchronously with the output shaft, and the permanent magnet is installed on the inner side of the fourth ring body and is opposite to the stator magnetic core.

In an embodiment of the invention, the first housing is a one-piece whole and the second housing is a one-piece whole.

In an embodiment of the present invention, the outer gear ring further includes a connecting plate, the connecting plate is located the first ring body is away from the one end of the motor, and the outer end of the connecting plate is connected to the first ring body.

The utility model discloses in, the planet carrier of gear reduction mechanism is together fixed with the first casing of motor, has improved drive arrangement's whole rigidity, has reduced the risk that takes place deformation or damage.

[ description of the drawings ]

Fig. 1 is a schematic view of a driving device according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the drive device shown in FIG. 1;

FIG. 3 is an exploded view of the drive assembly of FIG. 1;

fig. 4 is a schematic view of an outer ring gear used in the drive apparatus shown in fig. 1.

[ detailed description ] embodiments

The invention is further described with reference to the following figures and examples.

Referring to fig. 1 and 2, a driving device 100 according to an embodiment of the present invention includes a motor 20 and a gear reduction mechanism 50, wherein the gear reduction mechanism 50 is fixedly mounted to one end of the motor 20, and is configured to reduce the output of the motor 20 and output the reduced output through an output shaft 41. In this embodiment, one end of the motor 20 is a base 21, and the driving device 100 may be connected to the outside through the base 21. The gear reduction mechanism 50 is fixed to an end of the motor 20 remote from the base 21. The drive device 100 may be adapted to a low-speed logistics vehicle in a cargo compartment, for example, the base 21 is fixedly attached to the body of the low-speed logistics vehicle, and the gear reduction mechanism 50 is attached to the wheel. In this application, the driving device 100 is pressed in a direction perpendicular to the line connecting the motor 20 and the gear reduction mechanism 50, and therefore, a high rigidity is required for the driving device 100.

Referring to fig. 2 to 4, the gear reduction mechanism 50 includes a center wheel 51, a plurality of planetary wheels 53, a carrier 54, and an outer ring gear 61. The center wheel 51 is fixed to and rotates coaxially with the output shaft 41 of the motor 20. The planetary gears 53 encircle the center gear 51 and mesh with the center gear 51. The planet carrier 54 is used for mounting a plurality of planet wheels 53, and the planet carrier 54 is fixed with the first housing 31 of the motor 20. The outer gear ring 61 comprises a first ring body 62, the first ring body 62 surrounds a plurality of planet wheels 53, the inner wall of the first ring body 62 is provided with a gear ring 63 meshed with the planet wheels 53, and the outer gear ring 61 can rotate around the central wheel 51 under the action of the planet wheels 53.

The planet carrier 54 includes a second ring body 55, a first connecting plate 56, and a second connecting plate 57. First and

second connection plates

56 and 57 are respectively located at both ends of the second ring 55, and the outer ends of the first and

second connection plates

56 and 57 are connected to the second ring 55. The planet gears 53 are supported by shafts mounted to a first connecting plate 56 and a second connecting plate 57, and a portion of the planet gears 53 are exposed out of the second ring body 55 to mesh with the ring gear 63.

In this embodiment, the first housing 31 is a cylinder with an open end, and includes a third ring 32 and a bottom plate 34 located at one end of the third ring 32; the planet carrier 54 is connected with the bottom plate 34 and is formed integrally with the first housing 31 in one piece. In this way, the entire driving device 100 has a great rigidity, and can bear a great pressure in a direction perpendicular to the connection line between the motor 20 and the gear reduction mechanism 50, thereby reducing the risk of deformation or damage of the driving device 100.

In this embodiment, the motor 20 includes a base 21, and the base 21 includes an end cover 22, and the end cover 22 is mounted to the open end of the first housing 31. The base plate 34 of the first housing 31 is mounted with a bearing for supporting the output shaft 41 of the motor 20. The center wheel 51 is integrally formed at one end of the output shaft 41.

In this embodiment, the base 21 further includes a support cylinder 23 extending from the middle of the end cover 22, and one end of the output shaft 41 of the motor 20 extends into the support cylinder 23 and is supported by the support cylinder 23.

In this embodiment, the stator of the motor 20 includes a stator core 25 fixedly sleeved on the periphery of the supporting cylinder 23 and a stator winding wound around the stator core 25; the rotor of the motor 20 is accommodated inside the first housing 31, and includes a second housing 42 and a permanent magnet 47, the second housing 42 is a cylinder with one open end, and includes a fourth ring 45 and a cover plate 43 located at one end of the fourth ring 45, the center of the cover plate 43 is fixedly sleeved on the output shaft 41 of the motor 20 and rotates synchronously with the output shaft 41, and the permanent magnet 47 is installed inside the fourth ring 45 and is opposite to the stator core 25.

Preferably, the first housing 31 is a one-piece unitary body and the second housing 42 is a one-piece unitary body to further increase the overall stiffness of the drive device 100.

Referring to fig. 3 and 4, the outer ring gear 61 further includes a connecting plate 64, the connecting plate 64 being located at an end of the first ring 62 remote from the motor 20, an outer end of the connecting plate 64 being connected to an inner wall of the first ring 62. The connecting plate 64 is provided with connecting

holes

65 and 66, wherein the connecting hole 65 is penetrated by a connecting member to be fixedly connected to the first ring body 62. The connection hole 66 is used for connecting to an external driven object, such as a hub of a low-speed logistics vehicle.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, such as combinations of different features in the various embodiments, which are within the scope of the present invention.

Claims

1. A drive device comprising a motor (20) and a gear reduction mechanism (50) fixedly connected to one end of the motor (20), characterized in that the gear reduction mechanism (50) comprises:

a center wheel (51), wherein the center wheel (51) is fixed with an output shaft (41) of the motor (20) and rotates coaxially;

a plurality of planet wheels (53), the plurality of planet wheels (53) encircling the central wheel (51) and being in mesh with the central wheel (51);

a planet carrier (54) for mounting the plurality of planet wheels (53), the planet carrier (54) being fixed with the first housing (31) of the electric machine (20);

outer ring gear (61), outer ring gear (61) include first ring body (62), first ring body (62) encircle a plurality of planet wheel (53), first ring body (62) inner wall be provided with ring gear (63) with planet wheel (53) meshing, outer ring gear (61) are in can encircle under the effect of planet wheel (53) centre wheel (51) rotate.

2. The drive arrangement, as set forth in claim 1, characterized in that the planet carrier (54) comprises a second ring (55), a first connecting plate (56) and a second connecting plate (57); the first connecting plate (56) and the second connecting plate (57) are respectively positioned at two ends of the second ring body (55), and the outer ends of the first connecting plate (56) and the second connecting plate (57) are connected to the second ring body (55); the planet wheels (53) are supported by shafts mounted to the first and second connecting plates (56, 57), and a portion of the planet wheels (53) are exposed out of the second ring (55) to mesh with the ring gear (63).

3. The drive device as claimed in claim 1, characterized in that the first housing (31) is cylindrical with an open end and comprises a third ring body (32) and a bottom plate (34) at one end of the third ring body (32); the planet carrier (54) is connected with the base plate (34) and forms a one-piece integral body with the first housing (31).

4. A drive arrangement as claimed in claim 3, characterised in that the base plate (34) is fitted with bearings for supporting the output shaft (41) of the motor (20).

5. The drive arrangement as claimed in claim 4, characterized in that the centre wheel (51) is integrally formed at one end of the output shaft (41).

6. The drive of claim 3, wherein the motor (20) comprises a base (21), the base (21) comprising an end cap (22), the end cap (22) being mounted to the open end of the first housing (31).

7. The drive device according to claim 6, wherein the base (21) further comprises a support cylinder (23) extending from a central portion of the end cover plate (22), and one end of the output shaft (41) of the motor (20) extends into the support cylinder (23) and is supported by the support cylinder (23).

8. The drive device according to claim 7, wherein the stator of the motor (20) includes a stator core (25) fixedly fitted to the outer periphery of the support cylinder (23) and a stator winding wound around the stator core (25); the rotor of motor (20) is accommodated in the inboard of first casing (31), including second casing (42) and permanent magnet (47), second casing (42) are the tube-shape of one end open-ended, including fourth ring body (45) and be located apron (43) of fourth ring body (45) one end, the fixed cover in center of apron (43) is established output shaft (41) of motor (20) and with output shaft (41) synchronous revolution, permanent magnet (47) are installed the inboard of fourth ring body (45), and with stator core (25) are relative.

9. The drive arrangement according to claim 8, characterized in that the first housing (31) is a one-piece entity and the second housing (42) is a one-piece entity.

10. The drive arrangement, as set forth in claim 1, characterized in that the outer ring gear (61) further comprises a connecting plate (64), the connecting plate (64) being located at the end of the first ring (62) remote from the electric motor (20), the outer end of the connecting plate (64) being connected to the first ring (62).