Motor transmission assembly and motor thereof

Abstract

The utility model relates to the technical field of curtain motors, and discloses a motor transmission assembly and a motor thereof, the key points of the technical scheme are that the motor transmission assembly comprises a shell, a first deceleration group and a second deceleration group are arranged in the shell, the first deceleration group is in transmission connection with the second deceleration group, and the central axis of the first deceleration group and the central axis of the second deceleration group are arranged in parallel; the first speed reduction set is connected with the motor, the second speed reduction set is provided with an output end, the motor inputs power to the first speed reduction set, the first speed reduction set transmits the power to the second speed reduction set through transmission, and finally the power is output from the output end. The first speed reduction set and the second speed reduction set are arranged side by side, and compared with planetary speed reducers arranged side by side in a traditional opening and closing curtain motor, the height of the motor in the vertical direction is reduced, so that the motor can be better hidden.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of curtain motor, more specifically relates to a motor drive assembly and motor thereof. BACKGROUND

[0002] The curtain motor can realize the function of driving curtain cloth to open and close, and is connected with a transmission box in the electric opening and closing curtain, and the curtain motor is exposed, and the curtain motor includes two conditions of vertical installation and horizontal installation, when the curtain motor is vertically installed, the curtain motor is vertically arranged with the track, and when the curtain motor is horizontally installed, the curtain motor is parallelly arranged with the track.

[0003] The traditional curtain motor includes a motor, a speed reduction mechanism and a clutch mechanism, wherein the speed reduction mechanism is located between the motor and the clutch mechanism, and the motor, the speed reduction mechanism and the clutch mechanism are arranged in a straight line, and the central axes of the three are coincident, resulting in that the overall length of the curtain motor is too long. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a motor drive assembly and motor thereof for shortening the length of the motor.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a motor drive assembly, comprising a shell, a first speed reduction group and a second speed reduction group are arranged in the shell, the first speed reduction group is in transmission connection with the second speed reduction group, the central axis of the first speed reduction group is arranged in parallel with the central axis of the second speed reduction group, the first speed reduction group is connected with a motor, and an output end is arranged on the second speed reduction group.

[0006] As a further improvement of the utility model, the first speed reduction group includes a first sun gear, three first planetary gears and an output gear, a first ring gear is formed in the shell, the first sun gear is fixedly connected with the output end of the motor, the first sun gear is engaged with the first planetary gear, the first planetary gear is engaged with the first ring gear, and the first planetary gear is rotatably connected with the output gear, and the output gear is rotatably connected with the shell.

[0007] As a further improvement of the utility model, a first bearing is connected between the output gear and the shell.

[0008] As a further improvement of the utility model, the second speed reduction group includes a second sun gear and three second planetary gears, the second sun gear is in transmission connection with the output gear, a second ring gear is formed on the shell, the second planetary gear is engaged with the second ring gear, and the second planetary gear is rotatably connected with the output end, and the second sun gear is engaged with the second planetary gear.

[0009] As a further improvement of the utility model, a second bearing is connected between the second sun gear and the shell.

[0010] As a further improvement of the utility model, a transmission gear is rotatably connected to the shell, and the transmission gear is engaged between the output gear and the second sun gear.

[0011] As a further improvement of the utility model, an input gear is integrally formed on the second sun gear, and the transmission gear is engaged with the input gear.

[0012] As a further improvement of the utility model, a third bearing is connected between the transmission gear and the shell.

[0013] As a further improvement of the utility model, a spline head or spline groove is formed on the output end.

[0014] A motor comprising the motor transmission assembly.

[0015] The motor inputs power to the first speed reducer, the first speed reducer transmits power to the second speed reducer through transmission, and finally outputs power from the output end. Compared with the parallelly arranged planetary reducer in the traditional open and close curtain motor, the first speed reducer and the second speed reducer are arranged side by side, which reduces the height of the motor in the vertical direction, so that the motor can be better hidden. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 is a sectional view of the utility model;

[0018] Figure 3 is a schematic diagram of the structure of the first speed reducer and the second speed reducer in the utility model;

[0019] Figure 4 is a schematic diagram of the structure of the upper cover in the utility model;

[0020] Figure 5 is a schematic diagram of the structure of the output end in the utility model;

[0021] Figure 6 is a schematic diagram of the structure of the second sun gear in the utility model;

[0022] Figure 7 is a schematic diagram of the structure of the output gear in the utility model.

[0023] Reference signs: 1, housing; 11, first ring gear; 12, second ring gear; 13, transmission gear; 131, third bearing; 2, first reduction group; 21, first sun gear; 22, first planet gear; 23, output gear; 231, first bearing; 3, second reduction group; 31, second sun gear; 311, second bearing; 32, second planet gear; 4, motor; 5, output end. DETAILED DESCRIPTION

[0024] The utility model is further explained in detail below in combination with the drawings and embodiments. Identical parts are denoted by identical reference signs. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0025] With reference to Figures 1 to 7 The motor transmission assembly of the embodiment shown comprises a housing 1, the housing 1 comprising an upper cover and a bottom cover, the upper cover and the bottom cover being detachably connected, the housing 1 being provided with a first reduction group 2 and a second reduction group 3 inside, the first reduction group 2 being in transmission connection with the second reduction group 3, so that the power of the first reduction group 2 can be transmitted to the second reduction group 3; preferably, the transmission of power can be realized by a gear, and the gear can be provided with one or more gears;

[0026] The central axis of the first reduction group 2 is arranged in parallel with the central axis of the second reduction group 3, so that the first reduction group 2 and the second reduction group 3 are arranged side by side, the first reduction group 2 being connected with a motor 4, the second reduction group 3 being provided with an output end 5, the motor 4 inputting power to the first reduction group 2, the first reduction group 2 transmitting power to the second reduction group 3 through transmission, and finally outputting power from the output end 5;

[0027] The first reduction group 2 and the second reduction group 3 are arranged side by side, which reduces the height of the motor in the vertical direction compared with the parallel arrangement of the planetary reducer in the conventional open and close curtain motor, so that the motor can be better hidden.

[0028] The motor 4 is connected with the housing 1 through a transmission bearing, which increases the stability of the motor 4 during operation;

[0029] With reference to Figure 2 and Figure 3As shown, the first reduction gear set 2 comprises a first sun gear 21, three first planetary gears 22 and an output gear 23, a first ring gear 11 is formed in the housing 1, the first ring gear 11 is integrally formed with the housing 1, preferably, the first ring gear 11 is formed on the upper cover, the first sun gear 21 is fixedly connected with the output shaft of the motor 4, wherein an axle hole is formed on the first sun gear 21, and the output shaft of the motor 4 is fixedly connected with the first sun gear 21 by inserting into the axle hole;

[0030] The first sun gear 21 is engaged with the first planetary gear 22, the first planetary gear 22 is engaged with the first ring gear 11, and the first planetary gear 22 is rotatably connected with the output gear 23, three first connecting columns are fixedly connected with the output gear 23, the first planetary gear 22 is rotatably connected with the corresponding first connecting column, and the output gear 23 is rotatably connected with the housing 1.

[0031] When the motor 4 drives the first sun gear 21 to rotate, the first planetary gear 22 can drive the output gear 23 to rotate because the first ring gear 11 is stationary, thereby realizing the function of power transmission from the motor 4 to the output gear 23.

[0032] Referring to Figure 2 As shown, the output gear 23 is connected with the housing 1 through a first bearing 231, wherein the central axis of the first bearing 231 coincides with the central axis of the transmission bearing;

[0033] A first support column is formed on the housing 1, preferably, the first support column is formed on the bottom cover, the inner ring of the first bearing 231 is fixedly connected with the first support column, and the outer ring of the first bearing 231 is fixedly connected with the output gear 23.

[0034] Referring to Figure 2 and Figure 3 As shown, the second reduction gear set 3 comprises a second sun gear 31 and three second planetary gears 32, the second sun gear 31 is in transmission connection with the output gear 23, a second ring gear 12 is formed on the housing 1, wherein the second ring gear 12 is integrally formed with the housing 1, preferably, the second ring gear 12 is formed on the upper cover, the second planetary gear 32 is engaged with the second ring gear 12, and the second planetary gear 32 is rotatably connected with the output end 5, the second sun gear 31 is engaged with the second planetary gear 32, three second connecting columns are formed on the side of the output end 5 facing the second planetary gear 32, and the second planetary gear 32 is rotatably connected with the corresponding second connecting column.

[0035] When the second sun gear 31 rotates, it drives the second planetary gear 32 to rotate, and the second planetary gear 32 can drive the output end 5 to rotate because the second ring gear 12 is stationary, thereby realizing the function of power transmission from the second sun gear 31 to the output end 5.

[0036] Referring toFigure 5 As shown in the figure, the output end 5 is formed with a shaft body at the end away from the second planetary gear 32, the shaft body extends out of the shell 1, and a connecting cavity is formed on the shell 1 for connecting the transmission box, and the shaft body extends into the connecting cavity;

[0037] The output end 5 is formed with a spline head or spline groove, and preferably, the shaft body is a spline head;

[0038] A positioning hole is formed on the output end 5 towards the second sun gear 32, and a positioning column is formed on the second sun gear 31 and inserted into the positioning hole, thereby positioning the output end 5, so that the output end 5 is coaxial with the second sun gear 31, and the stability of power transmission is increased.

[0039] Referring to Figure 2 As shown in the figure, the second sun gear 31 is connected with the shell 1 through a second bearing 311, and the central axis of the second bearing 311 coincides with the central axis of the output end 5;

[0040] A second support is formed on the shell 1, and preferably, the second support is formed on the bottom cover, the inner ring of the second bearing 311 is fixedly connected with the second support, and the outer ring of the second bearing 311 is fixedly connected with the second sun gear 31.

[0041] The output gear 23 and the second sun gear 31 can also be a plurality of gears, wherein the plurality of gears can be arranged side by side or staggered in the vertical direction;

[0042] Referring to Figure 2 , Figure 3 As shown in the figure, preferably, a transmission gear 13 is rotatably connected to the shell 1, the transmission gear 13 is engaged between the output gear 23 and the second sun gear 31, and the power of the output gear 23 is transmitted to the second sun gear 31 through the transmission gear 13.

[0043] Referring to Figure 6 As shown in the figure, the second sun gear 31 is integrally formed with an input gear, and the transmission gear 13 is engaged with the input gear, wherein the input gear is fixedly connected with the outer ring of the second bearing 311.

[0044] The second sun gear 31 further comprises a sun gear, and the input gear and the sun gear are integrally formed and their central axes coincide;

[0045] The input gear is arranged to facilitate connection with the shell 1, and in addition, the outer diameter of the input gear is greater than the outer diameter of the sun gear, thereby facilitating engagement with the transmission gear 13.

[0046] Referring to Figure 2 and Figure 3As shown, the third bearing 131 is connected between the transmission gear 13 and the shell 1, a third support is formed on the shell 1, preferably, the third support is formed on the upper cover, the inner ring of the third bearing 131 is fixedly connected with the third support, and the outer ring of the third bearing 131 is fixedly connected with the transmission gear 13, thereby increasing the stability of the transmission gear 13 during rotation.

[0047] In the third support, a threaded hole is formed, a countersunk hole is formed on the bottom cover, and a screw is threadedly connected with the threaded hole through the countersunk hole, so as to realize detachable connection of the upper cover and the bottom cover.

[0048] A motor comprising the motor transmission assembly can reduce the size of the motor in the height space.

[0049] The preferred embodiments of the utility model are described above, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical scheme falling within the concept of the utility model belongs to the protection scope of the utility model. It should be noted that, for ordinary skilled persons in the art, some improvements and decorations without departing from the principles of the utility model are also considered as the protection scope of the utility model.

Claims

1. A motor drive assembly, characterized in that: Includes a housing (1), in which a first reduction gear group (2) and a second reduction gear group (3) are provided. The first reduction gear group (2) and the second reduction gear group (3) are connected in a transmission. The central axis of the first reduction gear group (2) is parallel to the central axis of the second reduction gear group (3). The first reduction gear group (2) is connected to a motor (4). The second reduction gear group (3) is provided with an output end (5).

2. The motor drive assembly according to claim 1, characterized in that: The first reduction gear (2) includes a first sun gear (21), three first planet gears (22) and an output gear (23). A first gear ring (11) is formed inside the housing (1). The first sun gear (21) is fixedly connected to the output shaft of the motor (4). The first sun gear (21) meshes with the first planet gears (22). The first planet gears (22) mesh with the first gear ring (11). The first planet gears (22) are rotatably connected to the output gear (23). The output gear (23) is rotatably connected to the housing (1).

3. The motor drive assembly according to claim 2, characterized in that: A first bearing (231) is connected between the output gear (23) and the housing (1).

4. A motor drive assembly according to claim 2, characterized in that: The second reduction gear (3) includes a second sun gear (31) and three second planet gears (32). The second sun gear (31) is connected to the output gear (23) for transmission. A second gear ring (12) is formed on the housing (1). The second planet gears (32) mesh with the second gear ring (12), and the second planet gears (32) are rotatably connected to the output end (5). The second sun gear (31) meshes with the second planet gears (32).

5. A motor drive assembly according to claim 4, characterized in that: A second bearing (311) is connected between the second sun gear (31) and the housing (1).

6. A motor drive assembly according to claim 4, characterized in that: A transmission gear (13) is rotatably connected to the housing (1), and the transmission gear (13) meshes between the output gear (23) and the second sun gear (31).

7. A motor drive assembly according to claim 6, characterized in that: The second sun gear (31) has an input gear integrally formed on it, and the transmission gear (13) meshes with the input gear.

8. A motor drive assembly according to claim 6, characterized in that: A third bearing (131) is connected between the transmission gear (13) and the housing (1).

9. A motor drive assembly according to claim 1, characterized in that: A spline head or spline groove is formed on the output terminal (5).

10. An electric motor, characterized in that: Includes a motor drive assembly as described in any one of claims 1 to 9.

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