Fan head-swinging transmission device

Abstract

The utility model provides a fan swing head transmission device which comprises a driving motor and a transmission assembly arranged on the driving motor, and the driving motor drives a fan swing head through the transmission assembly. The transmission assembly comprises a box body, a speed reduction planetary gear assembly, a transmission shaft and a bearing assembly arranged on the output shaft in a sleeving mode, the fan is in transmission connection to the output end of the transmission shaft, and the driving motor drives the transmission shaft to rotate through the speed reduction planetary gear assembly to enable the output end of the transmission shaft to drive the fan blades to swing left and right. According to the fan head-swinging transmission device, the transmission efficiency and the bearing capacity of the fan head-swinging transmission device in the process of driving a fan head to swing can be effectively improved, meanwhile, the structure of the fan head-swinging transmission device is effectively simplified, and therefore the space occupied by a fan using the fan head-swinging transmission device is reduced. In addition, the stability and smoothness when the driving motor drives the transmission shaft to drive the fan to rotate through the speed reduction planetary gear assembly can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the field of household appliances, and in particular relates to a fan swing head transmission device. Background Art

[0002] The swing head drive structure of the swing head fan currently on the market is relatively large, resulting in the fan occupying more space, and has a small load-bearing capacity and low transmission efficiency. The fan swings unsmoothly during the process of driving the fan to swing. Utility Model Content

[0003] The purpose of the utility model is to solve the problems that the existing swing head drive structure is large in size, resulting in the fan occupying more space, having a small load-bearing capacity, low transmission efficiency, and the existence of smooth swing of the head during the process of driving the fan swing head, and to provide a fan swing head transmission device.

[0004] The utility model solves the technical problem by adopting the following technical solution: a fan swing head transmission device, comprising a driving motor and a transmission assembly arranged on the driving motor, wherein the driving motor drives the fan swing head through the transmission assembly;

[0005] The transmission assembly includes a housing, a reduction planetary gear assembly arranged in the housing, a transmission shaft transmission-connected to the reduction planetary gear assembly, and a bearing assembly sleeved on the output shaft, the transmission shaft includes a transmission end transmission-connected to the reduction planetary gear assembly and an output end extending out of the housing, the fan is transmission-connected to the output end of the transmission shaft, the drive motor drives the transmission shaft to rotate through the reduction planetary gear assembly, so that the output end of the transmission shaft drives the fan blades to swing left and right.

[0006] Furthermore, the bearing assembly includes a first bearing and a second bearing sleeved on the output end of the transmission shaft, and the transmission shaft is rotatably connected to the housing via the first bearing and the second bearing.

[0007] Furthermore, the bearing assembly also includes a spring sheet arranged on the top end of the first bearing, and the first bearing is embedded on the output end of the transmission shaft through the spring sheet.

[0008] Furthermore, the reduction planetary gear assembly includes a sun gear sleeved on the output shaft of the drive motor, a plurality of planetary gears meshing with the sun gear for transmission, and an internal gear fixed in the housing, and the diameter of the planetary gear is larger than the diameter of the sun gear.

[0009] Furthermore, a fixed shaft is provided on the planetary wheel, a fixing hole for inserting the fixed shaft is provided on the transmission end of the transmission shaft, and the fixed shaft of the planetary wheel is inserted into the fixing hole of the transmission end, so that the planetary wheel is fixed and transmission-connected to the transmission shaft.

[0010] Furthermore, the inner wall of the internal gear is provided with internal gear teeth for meshing and driving with the planetary gears.

[0011] Furthermore, the box body includes an upper cover and a lower cover, the internal gear is arranged between the upper cover and the lower cover, the upper cover and the lower cover are respectively provided with a first mounting hole and a second mounting hole, and the internal gear has a third mounting hole coaxially arranged with the first mounting hole and the second mounting hole.

[0012] Furthermore, the box body also includes a locking piece, which passes through the upper cover and the internal gear and is locked in the second mounting hole of the lower cover, so that the internal gear is fixedly connected to the upper cover and the lower cover.

[0013] Furthermore, a gasket is provided between the lower cover and the sun gear and the planetary gear.

[0014] The beneficial effect of a fan swing transmission device provided by the utility model is that by connecting the fan drive to the output end of the transmission shaft, and using the drive motor to drive the transmission shaft through the reduction planetary gear assembly to drive the fan to rotate, the transmission efficiency and load-bearing capacity of the fan swing transmission device in the process of driving the fan swing can be effectively improved, while the structure of the fan swing transmission device can be effectively simplified, thereby reducing the space required for the fan using the fan swing transmission device. In addition, by using the bearing assembly sleeved on the output end of the transmission shaft, the stability and smoothness of the fan rotation driven by the drive motor through the reduction planetary gear assembly can be effectively improved, thereby avoiding the situation where the fan swing is not smooth and shakes when the fan swing transmission device drives the fan swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 An exploded schematic diagram of a fan swing head transmission device provided by the utility model;

[0016] Figure 2 A cross-sectional view of a fan swing head transmission device provided by the utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of a fan swing head transmission device provided by the utility model;

[0018] Figure 4 The utility model is a schematic structural diagram of a transmission shaft in a fan swing head transmission device provided by the utility model.

[0019] In the figure: 100- fan swing head transmission device,

[0020] 10-drive motor, 11-output shaft, 20-transmission assembly, 21-box, 211-upper cover,

[0021] 2111-first mounting hole, 212-lower cover, 2121-second mounting hole, 213-locking member,

[0022] 22-reduction planetary gear assembly, 221-sun gear, 222-planetary gear, 2221-fixed shaft,

[0023] 223-internal gear, 2231-third mounting hole, 23-transmission shaft, 231-transmission end, 2311-fixing hole, 232-output end, 24-bearing assembly, 241-first bearing, 242-second bearing, 243-spring,

[0024] 25-Shims. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] See also Figure 1-Figure 4, is a fan swing head transmission device 100 provided by the utility model, which includes a driving motor 10 and a transmission assembly 20 arranged on the driving motor 10, and the driving motor 10 drives the fan swing head through the transmission assembly 20; the transmission assembly 20 includes a housing 21, a reduction planetary gear assembly 22 arranged in the housing 21, a transmission shaft 23 drivingly connected to the reduction planetary gear assembly 22, and a bearing assembly 24 sleeved on the output shaft 11, the transmission shaft 23 includes a transmission end 231 drivingly connected to the reduction planetary gear assembly 22 and an output end 232 passing through the housing 21, the fan is connected to the output end 232 of the transmission shaft 23, the driving motor 10 drives the transmission shaft 23 to rotate through the reduction planetary gear assembly 22, so that the output end 232 of the transmission shaft 23 drives the fan blades to swing left and right. The fan swing transmission device 100 provided by the utility model can effectively improve the transmission efficiency and load-bearing capacity of the fan swing transmission device 100 in the process of driving the fan swing, and effectively simplify the structure of the fan swing transmission device 100, thereby reducing the space required for the fan using the fan swing transmission device 100. In addition, by means of the bearing assembly 24 sleeved on the output end 232 of the transmission shaft 23, the stability and smoothness of the fan rotation when the drive motor 10 drives the transmission shaft 23 through the reduction planetary gear assembly 22 can be effectively improved, thereby avoiding the situation that the fan swing is not smooth and shakes when the fan swing is driven by the fan swing transmission device 100.

[0027] like Figure 1 and Figure 2As shown, in the embodiment provided by the utility model, the bearing assembly 24 includes a first bearing 241 and a second bearing 242 sleeved on the output end 232 of the transmission shaft 23, and the transmission shaft 23 is rotatably connected to the housing 21 through the first bearing 241 and the second bearing 242. Through the first bearing 241 and the second bearing 242 sleeved on the output end 232 of the transmission shaft 23, a double-bearing rotation structure can be formed between the transmission shaft and the housing 21, thereby effectively improving the smoothness of the drive motor 10 driving the transmission shaft 23 to drive the fan to rotate through the reduction planetary gear assembly 22, and improving the stability of the fan when the output end 232 of the transmission shaft 23 drives the fan to rotate relative to the housing 21, thereby avoiding the situation that the fan swing head is not smooth and shakes during the process of using the fan swing head transmission device 100 to drive the fan swing head. In addition, the bearing assembly 24 also includes a spring piece 243 arranged on the top of the first bearing 241, and the first bearing 241 is embedded in the output end 232 of the transmission shaft 23 through the spring piece 243. The spring sheet 243 can effectively improve the stability of the locking fixation between the first bearing 241 and the output end 232 of the transmission shaft 23 , thereby ensuring that the first bearing 241 and the second bearing 242 improve the smoothness of the output end 232 of the transmission shaft 23 when rotating relative to the housing 21 .

[0028] like Figure 2 and Figure 4As shown, in the embodiment provided by the utility model, the reduction planetary gear assembly 22 includes a sun gear 221 sleeved on the output shaft 11 of the driving motor 10, three planetary gears 222 meshing with the sun gear 221 for transmission, and an internal gear 223 fixed in the housing 21, and the diameter of the planetary gear 222 is greater than the diameter of the sun gear 221. By setting the diameter of the planetary gear 222 to be greater than the diameter of the sun gear 221, a reduction transmission structure can be formed between the sun gear 221 and the planetary gear 222 during the process of the driving motor 10 driving the sun gear 221 to mesh with the planetary gear 222 for transmission, thereby effectively increasing the torque of the sun gear 221 acting on the planetary gear 222, thereby increasing the carrying capacity of the driving motor 10 when driving the transmission shaft 23 to drive the fan to rotate through the planetary gear 222 assembly, and effectively improving the transmission efficiency. The planetary gear 222 provided by the utility model is provided with a fixed shaft 2221, and the transmission end 231 of the transmission shaft 23 is provided with a fixed hole for inserting the fixed shaft 2221. The fixed shaft 2221 of the planetary gear 222 is inserted into the fixed hole of the transmission end 231, so that the planetary gear 222 is fixed and transmission-connected with the transmission shaft 23. By inserting the fixed shaft 2221 of the planetary gear 222 into the fixed hole of the transmission end 231, the planetary gear 222 is fixed and transmission-connected with the transmission shaft 23, which can effectively ensure the stability of the fixed and transmission connection between the planetary gear 222 and the transmission shaft 23, and effectively simplify the installation operation between the planetary gear 222 and the transmission end 231 of the transmission shaft 23, further simplify the structure of the fan swing head transmission device 100, and improve the installation efficiency.

[0029] like Figure 1 and Figure 2As shown, the inner wall of the inner gear 223 is provided with inner gear teeth for meshing and driving with the planetary gear 222. Through the inner gear teeth provided on the inner wall of the inner gear 223, the planetary gear 222 can be meshed and driven with the sun gear 221 and the inner gear 223. The inner gear 223 can effectively limit the displacement of the drive motor 10 driving the sun gear 221 to drive the planetary gear 222 to mesh and drive around the sun gear 221, thereby improving the stability of the planetary gear 222 driving the transmission shaft 23 to rotate relative to the housing 21 through the fixed shaft 2221. In the embodiment provided by the utility model, the housing 21 includes an upper cover 211 and a lower cover 212, the inner gear 223 is provided between the upper cover 211 and the lower cover 212, the upper cover 211 and the lower cover 212 are respectively provided with a first mounting hole 2111 and a second mounting hole 2121, and the inner gear 223 has a third mounting hole 2231 coaxially arranged with the first mounting hole 2111 and the second mounting hole 2121. The housing 21 further includes a locking member 213, which passes through the upper cover 211 and the inner gear 223 and is locked in the second mounting hole 2121 of the lower cover 212, so that the inner gear 223 is fixedly connected to the upper cover 211 and the lower cover 212. By passing the locking member 213 such as a bolt, a screw or a pin through the first mounting hole 2111 of the upper cover 211 and the third mounting hole 2231 of the inner gear 223 and then locking it in the second mounting hole 2121 of the lower cover 212, the stability of the fixed connection between the inner gear 223 and the upper cover 211 and the lower cover 212 can be effectively ensured, thereby ensuring the stability of the meshing transmission between the planetary gear 222 and the inner gear 223, and further ensuring the stability of the planetary gear 222 driving the transmission shaft 23 to rotate. A gasket 25 is also provided between the lower cover 212 and the sun gear 221 and the planetary gear 222. The gasket 25 can form a certain gap between the lower cover 212 and the sun gear 221 and the planetary gear 222, thereby effectively avoiding friction between the sun gear 221 and the planetary gear 222 and the lower cover 212 when the sun gear 221 and the planetary gear 222 rotate relative to the lower cover 212, resulting in wear and reducing the transmission efficiency when the drive motor 10 drives the sun gear 221 to drive the planetary gear 222 to rotate around the sun gear 221.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fan swing head transmission device, characterized in that: It comprises a driving motor (10) and a transmission assembly (20) arranged on the driving motor (10), wherein the driving motor (10) drives the transmission assembly (20) to drive the fan swing head; The transmission assembly (20) comprises a housing (21), a deceleration planetary gear assembly (22) arranged in the housing (21), a transmission shaft (23) transmission-connected to the deceleration planetary gear assembly (22), and a bearing assembly (24) sleeved on the output shaft (11) of the drive motor (10); the transmission shaft (23) comprises a transmission end (231) transmission-connected to the deceleration planetary gear assembly (22) and an output end (232) extending out of the housing (21); the fan is transmission-connected to the output end (232) of the transmission shaft (23); the drive motor (10) drives the deceleration planetary gear assembly (22) to drive the transmission shaft (23) to rotate, so that the output end (232) of the transmission shaft (23) drives the fan to swing left and right.

2. The fan swing head transmission device according to claim 1, characterized in that: The bearing assembly (24) comprises a first bearing (241) and a second bearing (242) which are sleeved on an output end (232) of the transmission shaft (23); the transmission shaft (23) is rotatably connected to the housing (21) via the first bearing (241) and the second bearing (242).

3. The fan swing head transmission device according to claim 2, characterized in that: The bearing assembly (24) further comprises a spring sheet (243) arranged at the top end of the first bearing (241), and the first bearing (241) is embedded on the output end (232) of the transmission shaft (23) through the spring sheet (243).

4. The fan swing head transmission device according to claim 2, characterized in that: The deceleration planetary gear assembly (22) comprises a sun gear (221) sleeved on the output shaft (11) of the drive motor (10), a plurality of planetary gears (222) meshing with the sun gear (221) for transmission, and an internal gear (223) fixed in the housing (21); the diameter of the planetary gear (222) is greater than the diameter of the sun gear (221).

5. The fan swing head transmission device according to claim 4, characterized in that: The planetary wheel (222) is provided with a fixed shaft (2221), and the transmission end (231) of the transmission shaft (23) is provided with a fixed hole (2311) for inserting the fixed shaft (2221), and the fixed shaft (2221) of the planetary wheel (222) is inserted into the fixed hole (2311) of the transmission end (231), so that the planetary wheel (222) and the transmission shaft (23) are fixedly connected and transmission-connected.

6. The fan swing head transmission device according to claim 4, characterized in that: The inner wall of the internal gear (223) is provided with internal gear teeth for meshing and transmitting with the planetary gear (222).

7. The fan swing head transmission device according to claim 4, characterized in that: The box body (21) comprises an upper cover (211) and a lower cover (212); the internal gear (223) is arranged between the upper cover (211) and the lower cover (212); the upper cover (211) and the lower cover (212) are respectively provided with a first mounting hole (2111) and a second mounting hole (2121); the internal gear (223) has a third mounting hole (2231) coaxially arranged with the first mounting hole (2111) and the second mounting hole (2121).

8. The fan swing head transmission device according to claim 7, characterized in that: The box body (21) further comprises a locking member (213), wherein the locking member (213) passes through the upper cover (211) and the internal gear (223) and is locked in a second mounting hole (2121) of the lower cover (212), so that the internal gear (223) is fixedly connected to the upper cover (211) and the lower cover (212).

9. The fan swing head transmission device according to claim 7, characterized in that: A gasket (25) is also provided between the lower cover (212) and the sun gear (221) and the planetary gear (222).

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