CN213425953U - Motor with built-in speed reducing mechanism - Google Patents

Abstract

A motor with built-in speed reducing mechanism comprises a shell, a stator, a rotor and a speed reducing mechanism, wherein the shell comprises a shell, a rear cover and a front cover which are combined on the shell, most of the front cover is sunk in the shell, an accommodating space is formed inside the front cover, the stator is combined in the shell, the rotor is rotatably arranged on the inner side of the stator and is provided with a rotating shaft, the speed reducing mechanism comprises a gear ring, a planet carrier, a plurality of planet wheels and a sun wheel, the gear ring is combined in the accommodating space, the planet carrier is arranged on the inner side of the gear ring and is provided with an output shaft extending to the outside, the plurality of planet wheels are combined in the planet carrier and are respectively meshed with the gear ring, and the sun wheel is simultaneously meshed with the plurality of planet wheels and can be driven to rotate by the rotating shaft; therefore, the use space and the cost can be greatly saved.

Description

Motor with built-in speed reducing mechanism

Technical Field

The present invention relates to a motor structure, and more particularly to a motor with a built-in speed reduction mechanism that can greatly save space and cost.

Background

As shown in taiwan patent No. I692178, a conventional motor is usually used as a driving source of various mechanical devices to drive the mechanical device to rotate, vibrate or move linearly after being coupled with a reduction mechanism such as a reduction gear box to reduce the rotation speed, so that the cost of purchasing the reduction gear box is required.

In view of the above, the present inventors have made extensive studies and intensive studies to improve the above-mentioned problems and to develop and design the present invention.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at solves well-known motor and needs extra reduction gears such as cooperation reduction gear case, and then leads to a lot of shortcomings such as too high and occupation usage space of cost.

The utility model provides a motor of built-in reduction gears, including a shell, a stator, a rotor and a reduction gears. The shell comprises a shell body, a rear cover and a front cover, wherein the rear cover and the front cover are combined at the rear end and the front end of the shell body, most of the front cover is sunk in the shell body, and an accommodating space is formed inside the front cover. The stator is annular and is incorporated in the housing. The rotor is arranged on the inner side of the stator and can rotate along the direction of the magnetic field generated by the stator, and the center of the rotor is provided with a rotating shaft extending into the front cover. The speed reducing mechanism comprises a gear ring, a planet carrier, a plurality of planet wheels and a sun wheel, wherein the gear ring is combined on the inner wall surface of the accommodating space of the front cover, the planet carrier is arranged on the inner side of the gear ring, the front side of the planet carrier is provided with an output shaft extending out of the front cover, the plurality of planet wheels are rotatably combined in the planet carrier and are respectively meshed with the gear ring, and the sun wheel is arranged between the plurality of planet wheels and is simultaneously meshed with the plurality of planet wheels and is connected with the rotating shaft to be driven to rotate by the rotating shaft.

The utility model provides a motor of built-in reduction gears, the protecgulum major part of this shell of accessible sinks among this casing, and locate this reduction gears in the inside accommodation space of this protecgulum, and make its structural design who is connected with the pivot of this rotor as the sun gear of input module, make its rotational speed after the speed reduction via this output shaft output, so can the direct use and need not to additionally cooperate reduction gear case isotructure again, consequently can save cost and usage space by a wide margin, it is also comparatively simple and convenient in the use.

Drawings

Fig. 1 is a schematic exploded perspective view of the present invention.

Fig. 2 is a perspective view showing the present invention.

Fig. 3 is an enlarged schematic cross-sectional view of the present invention.

Description of the reference numerals

10: outer casing

11: shell

12 rear cover

120 rear cover bolt

121: back cover bearing

13 front cover

14 rear seat

140 rear seat bolt

141 space for accommodating

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: rotating shaft

32: tooth column

40 speed reducing mechanism

41 gear ring

42 planet carrier

420 output shaft

43 planet wheel

44 sun gear

440 perforation

Detailed Description

Referring to fig. 1 to 3, it is shown that the motor with built-in speed reducing mechanism of the present invention includes a housing 10, a stator 20, a rotor 30 and a speed reducing mechanism 40, wherein:

the housing 10 includes a housing 11, a rear cover 12 and a front cover 13. The housing 11 is in a cylindrical shape with an opening at the front and rear ends, the rear cover 12 is fastened to the rear end of the housing 11 by a plurality of rear cover bolts 120, and a rear cover bearing 121 is disposed on the rear cover 12. The front cover 13 includes a rear seat 14, a front seat 15 and a cover 16. The rear seat 14 is coupled to the front end of the housing 11 by a plurality of rear seat bolts 140, most of which are sunk into the housing 11, a receiving space 141 is formed on the front side surface, and a rear seat bearing 142 is disposed on the rear seat 14. The front seat 15 is ring-shaped and is coupled to the front side surface of the rear seat 14 by a plurality of front seat bolts 150, and a plurality of front seat bearings 151 are provided inside thereof. The cover 16 is ring-shaped and is coupled to the front side of the front seat 15 by a plurality of cover bolts 160 to cover the plurality of front seat bearings 151.

The stator 20 is annular and is coupled and fixed to an inner wall of the housing 11.

The rotor 30 is disposed inside the stator 20 and can rotate along the direction of the magnetic field generated by the stator 20, and has a rotating shaft 31 at the center, the rear end of the rotating shaft 31 is disposed through the rear cover bearing 121, the front end of the rotating shaft passes through the rear seat bearing 142, and a tooth post 32 is formed at the front end.

The speed reducing mechanism 40 is disposed 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 coupled to an inner wall surface of the housing space 141 of the rear seat 14. The planet carrier 42 is disposed inside the ring gear 41, and an output shaft 420 extends from the front side surface, and the output shaft 420 is inserted into the plurality of front bearings 151 and extends to the outside of the outer cover 16 by a suitable length. The plurality of planetary gears 43 are rotatably incorporated in the carrier 42 and are respectively meshed with the ring gear 41. The sun gear 44 is disposed between the plurality of planet gears 43 and engaged with the plurality of planet gears 43, and 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 inserted.

As described above, when the rotor 30 rotates in cooperation with the magnetic field generated by the stator 20, the tooth post 32 at the front end of the rotating shaft 31 drives the sun gear 44 to rotate, the sun gear 44 drives the plurality of planetary gears 43 to rotate, and the plurality of planetary gears 43 revolve in cooperation with the ring gear 41, so as to drive the planetary gear carrier 42 to rotate, and therefore, the output shaft 420 outputs a slower rotating speed, thereby achieving the purpose of reducing speed.

The utility model provides a motor of built-in reduction gears, the protecgulum 13 of this shell 10 of accessible is most heavy among this casing 11, and locate this reduction gears 40 in the inside accommodation space 141 of this protecgulum 13, and make its structural design who is connected with the pivot 31 of this rotor 30 as the sun gear 44 of input module, make its rotational speed after can exporting through this output shaft 420, so can directly use and need not to additionally cooperate reduction gear case isotructure again, consequently, cost and usage space can be saved by a wide margin, also comparatively simple and convenient in the use.

Claims (5)

1. A motor with a built-in reduction mechanism, comprising:

the shell comprises a shell body, a rear cover and a front cover, wherein the rear cover and the front cover are combined at the rear end and the front end of the shell body;

a stator, which is circular and combined in the shell;

a rotor, which is arranged at the inner side of the stator and can rotate along the direction of the magnetic field generated by the stator, and the center of the rotor is provided with a rotating shaft extending into the front cover; and

the speed reducing mechanism comprises a gear ring, a planet carrier, a plurality of planet wheels and a sun wheel, wherein the gear ring is combined on the inner wall surface of the accommodating space of the front cover, the planet carrier is arranged on the inner side of the gear ring, the front side of the planet carrier is provided with an output shaft extending out of the front cover, the plurality of planet wheels are rotatably combined in the planet carrier and are respectively meshed with the gear ring, and the sun wheel is arranged between the plurality of planet wheels, is simultaneously meshed with the plurality of planet wheels, is connected with the rotating shaft and can be driven to rotate by the rotating shaft.

2. The motor with built-in retarding mechanism of claim 1, wherein the rear cover has a rear bearing, the front cover has a rear bearing and a plurality of front bearings, the rear end of the shaft is inserted into the rear bearing, the front end of the shaft extends into the front cover through the rear bearing, and the output shaft is inserted into the plurality of front bearings and extends to the outside of the cover by a suitable length.

3. The motor with built-in retarding mechanism of claim 2, wherein the front cover includes a rear seat, a front seat and an outer cover, the rear seat is coupled to the front end of the housing and mostly sunk into the housing, the receiving space is disposed on the front side of the rear seat, the rear seat is mounted on the rear seat, the front seat is ring-shaped and coupled to the front side of the rear seat, the plurality of front seat bearings are disposed in the front seat, and the outer cover is ring-shaped and coupled to the front side of the front seat to cover the plurality of front seat bearings.

4. The motor with built-in speed reducing mechanism of claim 1, wherein the front end of the rotating shaft forms a tooth post, and the center of the sun gear has a tooth hole for the tooth post to be inserted.

5. The motor with built-in speed reducing mechanism according to claim 1, wherein the speed reducing mechanism is a planetary gear.

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