Miniature duplex planetary gear motor applied to household appliance industry

Abstract

The utility model relates to the technical field of speed reduction motors, in particular to a miniature duplex planetary speed reduction motor applied to the household appliance industry, which comprises a motor and a speed reduction mechanism, and the speed reduction mechanism comprises a shell assembly and a planetary speed reduction assembly. The shell assembly comprises a shell sleeve and a connecting part which is arranged and formed at the bottom of the shell sleeve and connected with a shell of the motor, and further comprises a cover plate used for limiting the planetary speed reduction assembly in the shell sleeve. The planetary speed reduction assembly comprises a sun gear arranged on a motor rotating shaft and further comprises an output rotating plate rotationally connected with the motor rotating shaft and a plurality of planetary gears rotationally arranged at the bottom of the output rotating plate and meshed with the sun gear, and pinions moving along with the planetary gears are arranged on the lower portions of the planetary gears. An inner gear ring meshed with the small gear is formed on the connecting part, and an output shaft coaxial with the motor rotating shaft is arranged on the output rotating plate. After the output shaft is decelerated, larger torque can be output, operation is more stable, and the occupied size can be smaller.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of speed reducer motor, specifically relates to a micro double planetary speed reducer motor applied to the household electrical appliances industry.

BACKGROUND

[0002] Speed reducer motor refers to the integration of speed reducer and motor (motor), the integration is also usually called gear motor or gear motor, and is usually integrated and assembled by professional speed reducer manufacturers and sold as a set, the speed reducer motor is widely applied to the steel industry, mechanical industry and the like, and has the advantages of simplifying design and saving space.

[0003] The traditional speed reducer motor directly sets a large speed reduction gear to cooperate with the gear on the motor shaft, and the output shaft is arranged on the large speed reduction gear, so that the output shaft and the motor shaft are eccentrically arranged, the large speed reduction gear is subjected to unilateral force, and the output is unstable, for example, the speed reducer motor disclosed in application No. "201520753822.7" directly cooperates with a large speed reduction gear and the gear on the motor to reduce speed, so that the output shaft and the motor shaft are not coaxially arranged, and the rotation is unstable.

[0004] In addition, to achieve a large speed reduction ratio, the large speed reduction gear will far exceed the side surface of the original motor, causing the protrusion on one side, so that the installation space of the protruding part needs to be considered during installation, increasing the design and manufacturing difficulty, thus increasing the production cost and wasting a lot of space.

[0005] In addition, the speed reducer motor is generally used in the household electrical appliances field, and has a small size, such as the motor of the air outlet of an air conditioner and the lifting motor of a curtain, which makes it more difficult to achieve the goal of light weight and small size.

[0006] In view of the above technical problems, the utility model is hereby researched and proposed.

UTILITY MODEL CONTENTS

[0007] The utility model solves the problem of large space occupation of the traditional speed reducer motor, and has the characteristics of stable output and compact structure.

[0008] To solve the above technical problems, the utility model provides a micro double connection type planetary reduction motor applied to the household electrical appliances industry, including motor and reduction mechanism, the reduction mechanism includes the casing assembly fixed connection with the motor and the planetary reduction assembly in the casing assembly,

[0009] The casing assembly includes a shell and a connecting portion formed at the bottom of the shell and connected with the casing of the motor, and further includes a cover plate for limiting the planetary reduction assembly in the shell;

[0010] The planetary reduction assembly includes a sun gear arranged on the rotating shaft of the motor, an output rotating plate rotatably connected with the rotating shaft of the motor, and a plurality of planetary gears rotatably arranged at the bottom of the output rotating plate and engaged with the sun gear, the lower part of the planetary gear is provided with a pinion gear moving together with the planetary gear, the connecting portion is formed with an inner gear ring engaged with the pinion gear, the output rotating plate is provided with an output shaft coaxially arranged with the rotating shaft of the motor, and the output rotating plate is limited in the shell by the cover plate, and the output shaft penetrates through the cover plate and is rotatably connected with the cover plate.

[0011] As described above, the micro double connection type planetary reduction motor applied to the household electrical appliances industry, the planetary reduction assembly further includes a shaft sleeve arranged in the cover plate, and the shaft sleeve is rotatably connected with the cover plate, and the output shaft penetrates through the shaft sleeve.

[0012] As described above, the micro double connection type planetary reduction motor applied to the household electrical appliances industry, the outer side of the lower end of the shaft sleeve is circumferentially formed with a limiting portion for separating the output rotating plate from the cover plate.

[0013] As described above, the micro double connection type planetary reduction motor applied to the household electrical appliances industry, the middle part of the cover plate is formed with a hole for mounting the shaft sleeve, and the hole is upwardly turned over, and the shaft sleeve is embedded in the turned over portion.

[0014] As described above, the micro double connection type planetary reduction motor applied to the household electrical appliances industry, the middle part of the output rotating plate is formed with a rotation stopping hole, and the lower part of the output shaft is connected with the rotation stopping hole.

[0015] As described above, the micro double connection type planetary reduction motor applied to the household electrical appliances industry, the middle part of the output rotating plate is formed with a rotation stopping hole, and the lower part of the output shaft is connected with the rotation stopping hole.

[0016] As described above, the micro double connection type planetary reduction motor applied to the household electrical appliances industry, the planetary gear is provided with three corresponding pinion gears, and the three planetary gears are equidistantly arranged around the output rotating plate with the sun gear as the center.

[0017] As described above, the micro double connection type planetary reduction motor applied to the household electrical appliances industry, the axial thickness of the reduction mechanism is less than the axial thickness of the motor.

[0018] The application relates to a micro double-connection type planetary reduction motor applied to the household appliance industry, wherein the planetary gear and the pinion are integrally formed.

[0019] Compared with the prior art, the micro double-connection type planetary reduction motor applied to the household appliance industry has the following advantages:

[0020] 1. The motor can be reduced in speed through the reduction mechanism, and greater torque can be output.

[0021] 2. The output shaft is coaxially arranged with the original motor shaft after being reduced in speed, so that the entire motor is more balanced in force. Compared with the traditional reduction motor, the reduction motor can output more stably.

[0022] 3. The axial thickness of the reduction mechanism is smaller than that of the motor, so that the entire reduction motor is more flattened and smaller in size.

DRAWINGS

[0023] The specific implementation manners of the utility model will be further described in detail below in combination with the drawings, wherein:

[0024] Figure 1 is a structural schematic view of the utility model.

[0025] Figure 2 is a sectional view of the utility model.

[0026] Figure 3 is an exploded structural schematic view of the reduction mechanism in the utility model.

[0027] Figure 4 is another exploded structural schematic view of the reduction mechanism in the utility model.

[0028] Figure 5 is a structural schematic view of the sun gear in the utility model.

[0029] Figure 6 is a structural schematic view of the inner gear ring in the utility model.

[0030] In the drawing: 1, motor; 2, reduction mechanism;

[0031] 3, shell assembly; 30, shell sleeve; 31, connecting part; 32, cover plate; 33, mounting part;

[0032] 4, planetary reduction assembly; 40, sun gear; 41, output rotating plate; 42, planetary gear; 43, pinion; 44, inner gear ring; 45, output shaft; 46, shaft sleeve; 47, limiting part; 48, hole; 49, rotating hole; 50, rotation stopping hole.

CONCRETE IMPLEMENTATION MANNER

[0033] The embodiments of the utility model will be described below in detail in combination with the drawings.

[0034] As Figures 1-6 The utility model discloses a micro double connection type planetary reduction motor applied to the household electrical appliances industry, including motor 1 and reduction mechanism 2, and reduction mechanism 2 includes the casing assembly 3 fixed connection with motor 1 and the planetary reduction assembly 4 set in casing assembly 3.

[0035] Casing assembly 3 includes the shell 30 and the connecting portion 31 shaped in the bottom of shell 30 and the casing of motor 1, still include the cover plate 32 for limiting planetary reduction assembly 4 in shell 30.

[0036] Planetary reduction assembly 4 includes the sun gear 40 set on the rotating shaft of motor 1, still includes the output rotation board 41 with the rotating shaft opposite rotation connection of motor 1 and a plurality of planetary gears 42 rotationally set in the bottom of output rotation board 41 and with sun gear 40 meshing, a plurality of planetary gears 42 are set on output rotation board 41 with sun gear 40 as the center, and the lower part of planetary gear 42 is provided with pinion 43 with same movement, the inner gear 44 with pinion 43 meshing is shaped on connecting portion 31, and the output shaft 45 with the coaxial setting of the rotating shaft of motor 1 is provided on output rotation board 41, and the cover plate 32 limits output rotation board 41 in shell 30 and output shaft 45 passes out cover plate 32 and rotates with cover plate 32. The side of cover plate 32 is shaped with a plurality of mounting portions 33, and the whole reduction motor can be conveniently installed by setting mounting portion 33.

[0037] In this embodiment, the sun gear 40 is driven by the rotating shaft of motor 1 to rotate, and the sun gear 40 drives the planetary gear 42 to rotate, and since the planetary gear 42 and the pinion 43 are set to move together, when the planetary gear 42 rotates, the pinion 43 rotates at the same angular velocity as the planetary gear 42, and the pinion 43 cooperates with the inner gear 44, and the pinion 43 rotates around the sun gear 40 along the inner gear 44 under the condition of rotation, and further drives the output rotation board 41 to rotate, and after reduction, the rotation speed of the output rotation board 41 is less than the rotation speed of the rotating shaft of the motor 1, and the output rotation board 41 drives the output shaft 45 to rotate, and realizes reduction. Therefore, the motor 1 can be reduced by the reduction mechanism 2 to output greater torque.

[0038] The traditional speed reducer motor is directly provided with a large speed reduction gear which cooperates with the gear on the rotating shaft of the motor 1, and the output shaft 45 is arranged on the large speed reduction gear. In this way, the output shaft 45 and the rotating shaft of the motor 1 are eccentrically arranged, the large speed reduction gear is subjected to unilateral force, and the output is unstable. In order to achieve a large speed reduction ratio, the large speed reduction gear is far away from the side surface of the original motor 1, and the motor 1 is protruded on one side. Therefore, the installation space of the protruded part needs to be considered during installation, and the design and manufacturing difficulties are increased, the production cost is increased, and a large space is wasted. In addition, the speed reducer motor is generally used in the household appliance field, and the size of the motor is small, such as the motor of the air outlet of an air conditioner and the lifting motor of a curtain. Therefore, it is difficult to achieve the goal of light weight and small size.

[0039] As known from the above, the output shaft 45 is coaxially arranged with the rotating shaft of the original motor 1 after speed reduction. In this way, the force of the entire motor is more balanced. Compared with the traditional speed reducer motor, the speed reducer motor can be more stable and occupies a smaller size.

[0040] As shown in Figure 3 , as a further scheme of the embodiment, in order to make the rotation of the output shaft 45 more smooth and stable, the planetary speed reduction assembly 4 further comprises a shaft sleeve 46. The shaft sleeve 46 is arranged in the cover plate 32 and is rotationally connected with the cover plate 32. The output shaft 45 penetrates the shaft sleeve 46. The outer side of the lower end of the shaft sleeve 46 is circumferentially formed with a limiting portion 47 for separating the output rotating plate 41 from the cover plate 32. After the shaft sleeve 46 is arranged, the rotation of the output shaft 45 is more smooth. At the same time, the output rotating plate 41 is separated from the cover plate 32 by the limiting portion 47, so as to reduce the friction of the output rotating plate 41, reduce the energy loss, and make the rotation more smooth.

[0041] As shown in Figure 3 , as a further scheme of the embodiment, a hole 48 for mounting the shaft sleeve 46 is formed in the middle of the cover plate 32, and the hole 48 is upwardly flanged. The shaft sleeve 46 is embedded in the flange. In the embodiment, the shaft sleeve 46 is limited after the hole 48 is upwardly flanged. The rotation of the shaft sleeve 46 is more stable, and the rotation of the output shaft 45 is further stable.

[0042] As shown in Figure 2 , Figure 4 , as a further scheme of the embodiment, a rotating hole 49 is formed in the bottom of the output shaft 45. The rotating shaft of the motor 1 penetrates into the rotating hole 49 and rotationally cooperates with the rotating hole 49. In the embodiment, the rotating hole 49 is arranged in the bottom of the output shaft 45 to make the rotating shaft of the motor 1 penetrate into the rotating hole 49 for rotation cooperation. The coaxiality of the output shaft 45 and the rotating shaft of the motor 1 is further improved, so as to make the entire speed reduction mechanism 2 operate more stably.

[0043] As Figure 2 , Figure 4 shown, as a further scheme of the present embodiment, the middle part of the output rotating plate 41 is shaped with a rotation stopping hole 50, and the lower part of the output shaft 45 is connected with the rotation stopping hole 50. By setting the rotation stopping hole 50 to cooperate with the output shaft 45, the lower part of the output shaft 45 is matched with the shape of the rotation stopping hole 50, so that the output rotating plate 41 can drive the output shaft 45 to rotate when rotating.

[0044] As Figure 2 shown, as a further scheme of the present embodiment, the planetary gear 42 is provided with three, and the corresponding pinion 43 is also provided with three, and the three planetary gears 42 are arranged at equal intervals around the sun gear 40 on the output rotating plate 41. In the present embodiment, by setting the planetary gear 42 to three, the force on the sun gear 40 is more balanced, and at the same time, the output rotating plate 41 can also run more stably after being connected with the planetary gear 42 and the pinion 43 through the pin shaft.

[0045] As a further scheme of the present embodiment, the axial thickness of the speed reduction mechanism 2 is smaller than the axial thickness of the motor 1. Generally speaking, the larger the volume of the motor 1, the greater its power is usually. This is because a large volume of motor 1 can accommodate more rotors and coils, thereby providing greater energy output. If you want to reduce the volume of the motor 1 while maintaining the output power unchanged, it is very difficult. In the field of household appliances, such as monitoring cameras, air conditioner air outlets, curtain lifting motors, etc., the micro motor needs to be compressed in the speed reduction mechanism 2 part during the compression of the entire speed reduction motor, and the existing speed reduction of the motor 1 adopts multi-stage speed reduction, which will cause the overall volume to be relatively large.

[0046] The present utility model drives the output rotating plate 41 to rotate by the revolution of the plurality of pinions 43, realizes the rotation, realizes the speed reduction greatly, does not need the multi-stage speed reduction, makes the axial thickness of the speed reduction mechanism 2 can be smaller than the axial thickness of the motor 1, makes the whole speed reduction motor to reach the flattening, and the volume is smaller.

[0047] As a further scheme of the present embodiment, the planetary gear 42 and the pinion 43 are integrally formed. The design of the planetary gear 42 and the pinion 43 integrally formed can make the coaxiality of the planetary gear 42 and the pinion 43 higher.

Claims

1. A micro double planetary reduction motor applied to the household appliance industry, comprising a motor (1) and a reduction mechanism (2), characterized in that: The speed reduction mechanism (2) comprises a housing assembly (3) fixedly connected with the housing of the motor (1) and a planetary speed reduction assembly (4) arranged in the housing assembly (3); The housing assembly (3) comprises a housing sleeve (30) and a connecting portion (31) formed at the bottom of the housing sleeve (30) and connected with the motor (1), and further comprises a cover plate (32) for limiting the planetary speed reduction assembly (4) in the housing sleeve (30); The planetary speed reduction assembly (4) comprises a sun gear (40) arranged on the rotating shaft of the motor (1), an output rotating plate (41) rotatably connected with the rotating shaft of the motor (1), and a plurality of planetary gears (42) rotatably arranged at the bottom of the output rotating plate (41) and meshed with the sun gear (40), wherein the lower part of each planetary gear (42) is provided with a pinion (43) rotating therewith, the connecting portion (31) is formed with an inner gear ring (44) meshed with the pinion (43), and the output rotating plate (41) is provided with an output shaft (45) coaxially arranged with the rotating shaft of the motor (1), and the cover plate (32) limits the output rotating plate (41) in the housing sleeve (30) and the output shaft (45) penetrates through the cover plate (32) and is rotatably connected with the cover plate (32).

2. The micro double planetary reduction motor for application in the household appliance industry according to claim 1, characterized in that, The planetary speed reduction assembly (4) further comprises a shaft sleeve (46) arranged in the cover plate (32) and rotatably connected with the cover plate (32), and the output shaft (45) penetrates through the shaft sleeve (46).

3. The micro double planetary reduction motor for application in the household appliance industry according to claim 2, characterized in that, The outer side of the lower end of the shaft sleeve (46) is circumferentially formed with a limiting portion (47) for separating the output rotating plate (41) from the cover plate.

4. The micro double planetary reduction motor for application in the household appliance industry according to claim 2, characterized in that, The middle part of the cover plate (32) is formed with a hole (48) for mounting the shaft sleeve (46), and the hole (48) is upwardly flanged at the position, and the shaft sleeve (46) is embedded in the flange.

5. The micro double planetary reduction motor for application in the household appliance industry according to claim 1, characterized in that, The bottom of the output shaft (45) is formed with a rotating hole (49), and the rotating shaft of the motor (1) penetrates into the rotating hole (49) and is rotatably connected with the rotating hole (49).

6. The micro double planetary reduction motor for application in the household appliance industry according to claim 1, characterized in that, The side edges of the cover plate (32) are formed with a plurality of mounting portions (33).

7. The micro double planetary reduction motor for application in the household appliance industry according to claim 1, characterized in that, The middle part of the output rotating plate (41) is formed with a rotation stopping hole (50), and the lower part of the output shaft (45) is connected with the rotation stopping hole (50).

8. The micro double planetary reduction motor for application in the household appliance industry according to claim 1, characterized in that, The planetary gears (42) are three in number, and the corresponding pinions (43) are also three in number, and the three planetary gears (42) are equidistantly arranged around the output rotating plate (41) with the sun gear (40) as the center.

9. The micro double planetary reduction motor for application in the household electrical appliance industry according to claim 1, characterized in that, The axial thickness of the speed reduction mechanism (2) is smaller than the axial thickness of the motor (1).

10. The micro double planetary reduction motor for application in the household appliance industry according to claim 1, characterized in that, The planetary gears (42) and the pinions (43) are integrally formed.

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