TWM606431U - Motor with built-in reduction mechanism - Google Patents

Abstract

A motor with a built-in deceleration mechanism includes a housing, a stator, a rotor, and a deceleration mechanism. The housing includes a housing, a rear cover and a front cover coupled to the housing, and the front cover is mostly sunken. It is arranged in the housing and forms an accommodating space inside, the stator is integrated in the housing, the rotor is rotatably arranged inside the stator and has a rotating shaft, and the speed reduction mechanism includes a ring gear and a planet carrier , A plurality of planetary gears and a sun gear, the ring gear is combined in the accommodating space, the planet carrier is arranged inside the ring gear and has an output shaft extending to the outside, the plurality of planetary gear trains are combined in the planet carrier and Respectively meshing with the ring gear, the solar gear system meshes with the plurality of planetary gears simultaneously and can be driven to rotate by the rotating shaft; thereby, the use space and cost can be greatly saved.

Description

Motor with built-in reduction mechanism

This creation is a technical field about the structure of the motor, especially a motor with a built-in deceleration mechanism that can greatly save space and cost.

Commonly known motors, as shown in the Taiwan Announcement No. I692178 Patent, usually need to be combined with a reduction gear box and other reduction mechanisms to reduce the speed before they can be used as the driving source of various mechanical devices to drive the machinery for rotation, vibration or Linear motion, etc., so additional costs are required to purchase the reduction gearbox, and the general reduction gearbox has a considerable volume, so it will occupy the internal space of the mechanical device, resulting in the relative volume of the mechanical device that needs to be cooperated. Is quite large.

In view of this, the author developed and designed this creation based on the above-mentioned problems, and in-depth ideas, and actively researched and improved trials.

The main purpose of this creation is to solve the many shortcomings of conventional motors that require additional reduction gearboxes and other reduction mechanisms, resulting in excessive cost and occupation of space.

This creation provides a motor with a built-in deceleration mechanism, which includes a housing, a stator, a rotor and a deceleration mechanism. Wherein, the shell includes a shell, a back cover and a front cover combined with the rear end and the front end of the shell, and the front cover is mostly sunk in the shell and has an inner shape. There is an accommodation space. The stator is ring-shaped and integrated in the housing. The rotor is arranged on the inner side of the stator and can rotate according to the direction of the magnetic field generated by the stator. The center has a rotating shaft extending into the front cover. The deceleration mechanism includes a ring gear, a planet carrier, a plurality of planet wheels and a sun gear. The ring gear is coupled to the inner wall of the accommodating space of the front cover. The planet carrier is arranged inside the ring gear and has an extension on the front side. To an output shaft outside the front cover, the plurality of planetary gear trains are rotatably combined in the planet carrier and meshed with the ring gear respectively, and the sun gear train is arranged between the plurality of planetary gears and simultaneously with the plurality of planetary gears. The wheel meshes and is connected with the rotating shaft so that it can be driven to rotate.

The motor with a built-in deceleration mechanism provided by this creation can be mostly sunk in the housing by the front cover of the housing, and the deceleration mechanism is set in the accommodating space inside the front cover, and the The structure design of connecting the sun gear as the input element to the shaft of the rotor makes it possible to output the decelerated speed through the output shaft, so it can be used directly without the need for additional structures such as reduction gearboxes, so it can greatly It saves cost and space, and it is simple and convenient to use.

10: Shell

11: Shell

12: back cover

120: Rear cover bolt

121: Rear cover bearing

13: Front cover

14: back seat

140: Rear seat bolt

141: Housing Space

142: Rear seat bearing

15: front seat

150: front seat bolt

151: Front seat bearing

16: outer cover

160: Outer cover bolt

20: stator

30: Rotor

31: shaft

32: tooth column

40: Deceleration mechanism

41: gear ring

42: planet carrier

420: output shaft

43: Planetary wheel

44: Sun wheel

440: perforation

[Figure 1] is a three-dimensional exploded schematic diagram of this creation.

[Figure 2] is an enlarged schematic diagram of the three-dimensional combination of this creation.

[Figure 3] is an enlarged cross-sectional schematic diagram of this creation.

Please refer to Figures 1 to 3, which show that the motor with a built-in reduction mechanism described in this creation includes a housing 10, a stator 20, a rotor 30, and a reduction mechanism 40, among which:

The housing 10 includes a housing 11, a back cover 12 and a front cover 13. The shell 11 is a barrel shape with an open front and rear ends. The rear cover 12 is fixedly connected to the rear end of the housing 11 with a plurality of rear cover bolts 120, and a rear cover bearing 121 is provided on the rear cover 12. The front cover 13 includes a rear seat 14, a front seat 15 and an outer cover 16. The rear seat 14 is connected to the front end of the housing 11 by using a plurality of rear seat bolts 140, and most of the rear seat 14 is sunk in the housing 11. The front side has an accommodation space 141 formed on the rear seat 14. A rear seat bearing 142 is provided. The front seat 15 is ring-shaped and is connected to the front side of the rear seat 14 by a plurality of front seat bolts 150, and a plurality of front seat bearings 151 are arranged inside the front seat 15. The outer cover 16 is ring-shaped and is connected to the front side of the front seat 15 with a plurality of outer cover bolts 160 to cover the plurality of front seat bearings 151.

The stator 20 is annular in shape and fixed on the inner wall of the housing 11 in combination.

The rotor 30 is arranged on the inner side of the stator 20 and can rotate according to the direction of the magnetic field generated by the stator 20. There is a rotating shaft 31 in the center. The rear end of the rotating shaft 31 passes through the rear cover bearing 121, and the front end passes through the rear The seat bearing 142 and the front end thereof form a tooth column 32.

The speed reduction mechanism 40 is arranged in the accommodating space 141 and is a planetary gear, which includes a ring gear 41, a planet carrier 42, a plurality of planet gears 43 and a sun gear 44. The ring gear 41 is connected to the inner wall surface of the accommodating space 141 of the rear seat 14. The planet carrier 42 is arranged on the inner side of the ring gear 41, and an output shaft 420 protrudes from the front side. The output shaft 420 passes through the plurality of front bearing 151 and extends to an appropriate length outside the outer cover 16 . The plurality of planetary gears 43 are rotatably combined in the planet carrier 42 and mesh with the ring gear 41 respectively. The sun gear 44 is arranged between the plurality of planet gears 43 and meshes with the plurality of planet gears 43 at the same time. The center of the sun gear 44 has a tooth hole 440 for the tooth post 32 at the front end of the rotating shaft 31 to be embedded.

In this way, when the rotor 30 rotates in accordance with the magnetic field generated by the stator 20, the tooth column 32 at the front end of the rotating shaft 31 will drive the sun gear 44 to rotate, and the sun gear 44 will be linked to the complex The planetary gear 43 rotates on its own, and the planetary gears 43 revolve in cooperation with the ring gear 41 to drive the planet carrier 42 to rotate. Therefore, the output shaft 420 outputs a slower speed to achieve the purpose of deceleration.

The motor with a built-in deceleration mechanism provided by the present invention can be installed in the housing 11 by the front cover 13 of the housing 10, and the deceleration mechanism 40 is arranged in the housing inside the front cover 13 In the space 141, the sun gear 44 as the input element is connected with the shaft 31 of the rotor 30, so that it can output the decelerated speed through the output wheel 420, so it can be used directly without additional With the reduction gearbox and other structures, it can greatly save cost and use space, and it is simple and convenient to use.

10: Shell

11: Shell

12: back cover

121: Rear cover bearing

13: Front cover

14: back seat

141: Housing Space

142: Rear seat bearing

15: front seat

151: Front seat bearing

16: outer cover

20: stator

30: Rotor

31: shaft

32: tooth column

40: Deceleration mechanism

41: gear ring

42: planet carrier

420: output shaft

43: Planetary wheel

44: Sun wheel

440: perforation

Claims (5)

A motor with a built-in speed reduction mechanism, including: A housing includes a housing, a back cover and a front cover that are combined with the rear end and the front end of the housing, the front cover is mostly sunk in the housing and an accommodating space is formed inside; The stator is in the shape of a ring and is integrated in the shell; A rotor, which is arranged on the inner side of the stator and can rotate according to the direction of the magnetic field generated by the stator, and has a rotating shaft extending into the front cover in the center; and The deceleration mechanism includes a ring gear, a planet carrier, a plurality of planet wheels and a sun gear. The ring gear is coupled to the inner wall of the accommodating space of the front cover. The planet mount is arranged inside the ring gear and has a front side An output shaft extending to the outside of the front cover, the plurality of planetary gear trains are rotatably combined in the planet carrier and meshed with the ring gear respectively, and the solar gear train is arranged between the plurality of planetary gears and simultaneously with the plurality of planetary gears. The planetary gear meshes and is connected with the rotating shaft to be driven to rotate. The motor with a built-in reduction mechanism according to claim 1, wherein the rear cover is provided with a rear cover bearing, the front cover is provided with a rear seat bearing and a plurality of front seat bearings, and the rear end of the rotating shaft penetrates the rear cover In the bearing, the front end passes through the rear seat bearing and extends into the front cover, and the output shaft passes through the plurality of front seat bearings and extends to an appropriate length outside the outer cover. The motor with a built-in deceleration mechanism according to claim 2, wherein the front cover includes a rear seat, a front seat and an outer cover, and the rear seat is combined with the front end of the housing and is mostly sunk in the housing Wherein, the accommodating space is provided on the front side of the rear seat, the rear seat bearing is provided on the rear seat, the front seat is ring-shaped and combined with the front side of the rear seat, and the plural front seat bearings are provided in the front seat , The outer cover is ring-shaped and is combined with the front side of the front seat to cover the plurality of front seat bearings. The motor with a built-in speed reduction mechanism according to claim 1, wherein the front end of the rotating shaft is formed with a tooth column, and the center of the sun gear has a tooth hole for the tooth column to be embedded. The motor with a built-in reduction mechanism as described in claim 1, wherein the reduction mechanism is a planetary gear.

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