Axial flux motor reduction drive wheel

Abstract

The utility model relates to a kind of axial flux motor reduction drive wheel, and it relates to driving equipment technical field.It includes axial flux motor and planetary reducer, the output end of axial flux motor is coaxially arranged with the input end of planetary reducer and is drivingly connected, planetary reducer includes inner ring gear, inner ring gear is equipped with running wheel, coaxially arranged in inner ring gear has sun gear, the ring circumference of sun gear is engaged with a plurality of planetary gears and is engaged with inner ring gear, inner ring gear is also coaxially installed with planet carrier, the planetary gear is rotatably installed on planet carrier;The output shaft of the axial flux motor extends to planetary reducer, and with sun gear is integrally formed structure, the planet carrier and the shell of axial flux motor are integrally formed structure, inner ring gear is rotatably installed on planet carrier.The utility model reduces the overall weight by omitting the connecting structure between the axial flux motor and planetary reducer, and simultaneously adopts more flat thin axial flux motor, which can reduce the axial dimension of reduction motor.

Description

Technical Field

[0001] This utility model relates to the field of drive equipment technology, specifically to an axial flux motor reduction drive wheel. Background Technology

[0002] Humanoid robots are in a phase of rapid development, with technological breakthroughs and industrial applications advancing simultaneously, but they still face challenges such as hardware performance and data resources. Wheeled androids are a typical form of multi-morphic androids, possessing wheeled mobility and intelligent decision-making capabilities. Existing wheeled androids, such as the one disclosed in the publication (announcement) number CN 120517167 A, include a drive wheel mechanism and a drive wheel structure in a wheeled humanoid robot. This mechanism includes a drive motor and a reduction transmission mechanism connected to the output end of the drive motor. The drive motor and the reduction transmission mechanism are separate structures, requiring additional connecting parts for connection, which increases axial length and weight. This does not meet the requirements for lightweight and thin androids. Furthermore, the lack of a lubrication structure leads to accelerated gear wear, shortened lifespan, and reduced accuracy. Utility Model Content

[0003] The purpose of this invention is to provide an axial flux motor reduction drive wheel, which can effectively solve the problems in the background art.

[0004] The technical solution to achieve the above objective is: an axial flux motor reduction drive wheel, including an axial flux motor and a planetary reducer. The output end of the axial flux motor and the input end of the planetary reducer are coaxially arranged and connected for transmission. The planetary reducer includes an internal gear ring, a traveling wheel is fitted on the outer side of the internal gear ring, a sun gear is coaxially arranged in the internal gear ring, and multiple planet gears that mesh with the internal gear ring simultaneously are arranged in the circumferential meshing transmission of the sun gear. A planet carrier is also coaxially installed in the internal gear ring, and the planet gears are rotatably mounted on the planet carrier. The features are as follows: the output shaft of the axial flux motor extends into the planetary reducer and is integrally formed with the sun gear; the planet carrier and the housing of the axial flux motor are integrally formed; and the internal gear ring is rotatably mounted on the planet carrier.

[0005] Furthermore, the planet carrier is a cylindrical structure with openings at both ends, and mounting grooves are provided around the circumference of the planet carrier. The planet gears are rotatably mounted in the mounting grooves, and the sun gear is coaxially mounted inside the planet carrier.

[0006] Furthermore, the hollow cavity of the planetary carrier is a lubrication cavity. A first bearing and a skeleton oil seal are installed between the output end of the axial flux motor output shaft and the housing of the axial flux motor. The first bearing and the skeleton oil seal are located on the side of the lubrication cavity close to the axial flux motor. The end of the lubrication cavity away from the axial flux motor is sealed and connected to a planetary gear flange. A lubricating oil nozzle communicating with the lubrication cavity is connected to the center of the planetary gear flange.

[0007] Furthermore, the planetary gears and the internal gear ring are formed using powder metallurgy.

[0008] The beneficial effects of this utility model are as follows: The output shaft of the axial flux motor of this utility model extends into the planetary reducer and is integrally formed with the sun gear. The planet carrier and the housing of the axial flux motor are integrally formed, so that the axial flux motor and the planetary reducer form an integral structure, eliminating the connecting structure and reducing the overall weight. At the same time, the use of a thinner axial flux motor can reduce the axial dimension of the geared motor.

[0009] The planetary gear and internal gear ring of this invention are manufactured using powder metallurgy, which further reduces the product size.

[0010] This invention sets the planetary carrier as a lubrication chamber and introduces lubricating oil through an oil nozzle to achieve lubrication between the sun gear, planet gears, and internal gear ring, thereby extending the service life of the gears. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model; Figure 2 This is the front view of the present invention; Figure 3 for Figure 2 Sectional view along the middle AA direction; Figure 4 for Figure 2 A cross-sectional view along the CC direction. Detailed Implementation

[0012] like Figure 1-4 As shown, this utility model includes an axial flux motor 2 and a planetary reducer 1 arranged left and right. The output end of the axial flux motor 2 is coaxially connected to the input end of the planetary reducer 1. The planetary reducer 1 includes an internal gear ring 1.2, a traveling wheel 1.1 is fitted around the internal gear ring 1.2, a sun gear 1.3 is coaxially arranged in the internal gear ring 1.2, and multiple planet gears 1.4 that mesh with the internal gear ring 1.2 are arranged in a circumferential meshing transmission. A planet carrier 1.5 is installed in the internal gear ring 1.2, and the planet gears 1.4 are rotatably mounted on the planet carrier 1.5. The internal gear ring 1.2 has a ring of internal teeth in the middle, and second bearings 1.6 are installed at both ends between the internal gear ring 1.2 and the planet carrier 1.5.

[0013] As a further modification of this embodiment, in order to reduce the overall weight of the geared motor, the planetary gear 1.4 and the internal gear ring 1.2 are formed by powder metallurgy.

[0014] As a further modification of this embodiment, in order to reduce the axial length and weight of the geared motor, the output shaft 2.1 of the axial flux motor 2 extends into the planetary reducer 1 and is integrally formed with the sun gear 1.3, and the planet carrier 1.5 is integrally formed with the housing of the axial flux motor 1.

[0015] Furthermore, the planetary carrier 1.5 is a cylindrical structure open at both ends. The planetary carrier 1.5 has mounting grooves 1.7 around its circumference corresponding to the planetary gears 1.4. The planetary gears 1.4 are rotatably mounted in the mounting grooves 1.7 via roller bearings. The sun gear 1.3 is coaxially mounted inside the planetary carrier 1.5. The hollow cavity of the planetary carrier 1.5 serves as a lubrication chamber 1.8. A first bearing 3 and a skeleton oil seal 4, arranged left and right, are installed between the output end of the output shaft 2.1 of the axial flux motor 2 and the housing 2.2 of the axial flux motor 2. The first bearing 3 and the skeleton oil seal 4 are located at one end of the lubrication cavity 1.8 near the axial flux motor 2. The end of the lubrication cavity 1.8 away from the axial flux motor 2 is sealed with a planetary gear flange 1.9. The planetary gear flange 1.9 is a circular disc. The center of the planetary gear flange 1.9 is connected to a lubrication nozzle 1.10 that communicates with the lubrication cavity 1.8. Lubricating oil is introduced into the lubrication cavity 1.8 through the lubrication nozzle 1.10 to achieve lubrication between the sun gear 1.3, planet gear 1.4, and internal gear ring 1.2.

Claims

1. An axial flux motor reduction drive wheel, comprising an axial flux motor and a planetary reducer, wherein the output end of the axial flux motor is coaxially arranged and connected to the input end of the planetary reducer, the planetary reducer comprises an internal gear ring, a traveling wheel is fitted around the internal gear ring, a sun gear is coaxially arranged in the internal gear ring, a plurality of planet gears are simultaneously meshed with the internal gear ring in a circumferential meshing transmission arrangement of the sun gear, and a planet carrier is also coaxially installed in the internal gear ring, wherein the planet gears are rotatably mounted on the planet carrier; Its features are: The output shaft of the axial flux motor extends into the planetary reducer and is integrally formed with the sun gear. The planet carrier and the housing of the axial flux motor are integrally formed, and the internal gear ring is rotatably mounted on the planet carrier.

2. The axial flux motor reduction drive wheel according to claim 1, characterized in that: The planet carrier is a cylindrical structure with openings at both ends. The planet carrier has mounting grooves around its circumference, in which the planet gears are rotatably mounted. The sun gear is coaxially mounted inside the planet carrier.

3. The axial flux motor reduction drive wheel according to claim 2, characterized in that: The hollow cavity of the planetary carrier is a lubrication cavity. A first bearing and a skeleton oil seal are installed between the output end of the axial flux motor output shaft and the housing of the axial flux motor. The first bearing and the skeleton oil seal are located on the side of the lubrication cavity closer to the axial flux motor. The end of the lubrication cavity away from the axial flux motor is sealed and connected to a planetary gear flange. A lubricating oil nozzle communicating with the lubrication cavity is connected to the center of the planetary gear flange.

4. The axial flux motor reduction drive wheel according to claim 1, characterized in that: The planetary gears and internal gear rings are formed using powder metallurgy.

Images