CN221263551U - Large fan motor - Google Patents
Large fan motor Download PDFInfo
- Publication number
- CN221263551U CN221263551U CN202322836999.0U CN202322836999U CN221263551U CN 221263551 U CN221263551 U CN 221263551U CN 202322836999 U CN202322836999 U CN 202322836999U CN 221263551 U CN221263551 U CN 221263551U
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- gear
- gears
- planetary
- planetary gears
- servo motor
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
A large fan motor comprises a servo motor (1) and a secondary speed reducing mechanism driven by the servo motor (1), wherein the secondary speed reducing mechanism comprises a plurality of first planetary gears (2) and a plurality of second planetary gears (3), and the tooth gaps of the first planetary gears (2) and the second planetary gears (3) are 3-5 arc minutes. The utility model adopts the structural design, namely the tooth gaps of the first planetary gear and the second planetary gear are set to be 3-5 arc minutes, the noise is only 68-72db, the transmission efficiency is as high as 96%, and the requirements of industry and production on the motor are higher and higher.
Description
Technical Field
The utility model relates to the technical field of motors, in particular to a large fan motor.
Background
The motor is convenient to use and wide in application range, and in the use process, the motor is often matched with the speed reducer for use, the rotating speed of the motor is correspondingly changed through the speed reducer, and the use requirements of different occasions are met.
In the prior art, an eccentric speed reduction structure is generally adopted to be connected with a motor, but when the structure works, the noise is up to 75-80db, the speed reduction transmission efficiency of an external gear is only 75-80%, and the requirements of modern industry and production on the motor are not met.
Disclosure of utility model
Aiming at the defects existing in the prior art, the utility model aims to provide a large fan motor with low noise and high transmission efficiency.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
A large fan motor comprises a servo motor and a secondary speed reducing mechanism driven by the servo motor, wherein the secondary speed reducing mechanism comprises a plurality of first planetary gears and a plurality of second planetary gears, and the tooth gaps of the first planetary gears and the second planetary gears are 3-5 arc minutes.
Further, the backlash of the first planetary gears and the second planetary gears is 4 arc minutes.
Further, the two-stage speed reducing mechanism comprises a first speed reducing mechanism and a second speed reducing mechanism, wherein the first speed reducing mechanism comprises a planet carrier, three first planet gears and a first annular gear, and the second speed reducing mechanism comprises a sun gear, three second planet gears and a second annular gear; the first planet gears are arranged in the planet carrier and meshed with the first inner gear ring and the shaft end gear of the output shaft of the servo motor for transmission, the first planet gears are rotatably arranged on a first pin shaft, and the planet carrier is arranged on the first pin shafts; the planet carrier is meshed with the sun gear for transmission; the second planetary gears are arranged in the output shafts, the second planetary gears, the second annular gear and the sun gear are in meshed transmission, the second planetary gears are rotatably arranged on a second pin shaft, and the output shafts are arranged on the second pin shafts.
Further, the front end of the servo motor is provided with a box body, the first annular gear is arranged on the box body through a ball bearing, and the second annular gear is arranged on the box body through a ball bearing.
Further, the first planetary gear is rotatably mounted on the first pin shaft through a needle bearing, and the second planetary gear is rotatably mounted on the second pin shaft through a needle bearing.
Further, one end of the output shaft of the servo motor, which is opposite to the shaft end gear, is provided with an impeller.
Further, a fan cover for covering the fan impeller is arranged at the rear end of the servo motor.
Compared with the prior art, the utility model has the beneficial effects that:
Due to the adoption of the structural design, namely the tooth gaps of the first planetary gear and the second planetary gear are set to be 3-5 arc minutes, the noise is only 68-72db, the transmission efficiency is as high as 96%, and the requirements of industry and production on the motor are met.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
Fig. 2 is a cross-sectional view of an embodiment of the present utility model.
The reference numerals in the figures are respectively:
1-servo motor, 2-first planetary gear, 3-second planetary gear, 4-planet carrier, 5-first annular gear, 6-axle head gear, 7-first round pin axle, 8-output shaft, 9-sun gear, 10-second annular gear, 11-second round pin axle, 12-box, 13-fan impeller, 14-fan lid.
Detailed Description
The structural and operational principles of the present invention will be described in further detail below with reference to the accompanying drawings.
The embodiments described by referring to the drawings are exemplary and intended to illustrate the application and should not be construed as limiting the application. In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "lower", "upper", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
Examples
As shown in fig. 1 and 2, the large fan motor of the present embodiment includes a servo motor 1 and a secondary reduction mechanism driven by the servo motor 1, where the secondary reduction mechanism includes three first planetary gears 2 and three second planetary gears 3, and the backlash of the first planetary gears 2 and the second planetary gears 3 is 4 arc minutes, and the noise of the present embodiment is reduced to 68-72db, and the transmission efficiency is as high as 96%, so as to meet the requirements of industry and production on the motor that is higher and higher.
The two-stage speed reducing mechanism comprises a first speed reducing mechanism and a second speed reducing mechanism, wherein the first speed reducing mechanism comprises a planet carrier 4, three first planet gears 2 and a first annular gear 5, and the second speed reducing mechanism comprises a sun gear 9, three second planet gears 3 and a second annular gear 10; the first planet gears 2 are arranged in the planet carrier 4 and meshed with the first annular gear 5 and the shaft end gear 6 of the output shaft of the servo motor 1 for transmission, the first planet gears 2 are rotatably arranged on a first pin shaft 7, and the planet carrier 4 is arranged on the first pin shafts 7; the planet carrier 7 is meshed with the sun gear 9 for transmission; the second planetary gears 3 are arranged in the output shaft 8, the second planetary gears 3, the second annular gear 10 and the sun gear 9 are meshed for transmission, the second planetary gears 3 are rotatably arranged on a second pin shaft 11, and the output shaft 8 is arranged on the second pin shaft 11; the first planetary gear 2 is rotatably mounted on the first pin shaft 7 through a needle bearing, and the second planetary gear 3 is rotatably mounted on the second pin shaft 11 through a needle bearing.
The front end of the servo motor 1 is provided with a box 12, the first annular gear 5 is mounted on the box 12 through a ball bearing, and the second annular gear 10 is mounted on the box 12 through a ball bearing.
Wherein, one end of the output shaft of the servo motor 1 opposite to the shaft end gear 6 is provided with an impeller 13.
Wherein, a fan cover 14 for covering the fan impeller 13 is arranged at the rear end of the servo motor 1.
In conclusion, the utility model solves the defects in the prior art through the structural design, and has the characteristics of reasonable structure, low noise, high transmission efficiency and the like.
In the foregoing, only the preferred embodiment of the present invention is described, and any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical solutions of the present invention fall within the scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a big fan motor, includes a servo motor (1) and a second grade reduction gears that this servo motor (1) driven, and this second grade reduction gears includes a plurality of first planetary gear (2) and a plurality of second planetary gear (3), its characterized in that: the backlash of the first planetary gears (2) and the second planetary gears (3) is 3-5 minutes.
2. A large fan motor as claimed in claim 1, wherein: the backlash of the first planetary gears (2) and the second planetary gears (3) is 4 minutes.
3. A large fan motor as claimed in claim 2, wherein: the two-stage speed reducing mechanism comprises a first speed reducing mechanism and a second speed reducing mechanism, wherein the first speed reducing mechanism comprises a planet carrier (4), three first planet gears (2) and a first annular gear (5), and the second speed reducing mechanism comprises a sun gear (9), three second planet gears (3) and a second annular gear (10); the first planet gears (2) are arranged in the planet carrier (4) and are meshed with the first annular gear (5) and the shaft end gear (6) of the output shaft of the servo motor (1) for transmission, the first planet gears (2) are rotatably arranged on a first pin shaft (7), and the planet carrier (4) is arranged on the first pin shafts (7); the planet carrier (4) is meshed with the sun gear (9) for transmission; the second planetary gears (3) are arranged in the output shaft (8), the second planetary gears (3) are meshed with the second annular gear (10) and the sun gear (9) for transmission, the second planetary gears (3) are rotatably arranged on a second pin shaft (11), and the output shaft (8) is arranged on the second pin shafts (11).
4. A large fan motor as claimed in claim 3, wherein: the front end of the servo motor (1) is provided with a box body (12), the first annular gear (5) is arranged on the box body (12) through a ball bearing, and the second annular gear (10) is arranged on the box body (12) through a ball bearing.
5. A large fan motor as claimed in claim 4, wherein: the first planetary gear (2) is rotatably mounted on the first pin shaft (7) through a needle bearing, and the second planetary gear (3) is rotatably mounted on the second pin shaft (11) through a needle bearing.
6. A large fan motor according to any one of claims 3-5, characterized in that: one end of the output shaft of the servo motor (1) opposite to the shaft end gear (6) is provided with an impeller (13).
7. The large fan motor of claim 6, wherein: the rear end of the servo motor (1) is provided with a fan cover (14) for covering the fan blade wheel (13).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221263551U true CN221263551U (en) | 2024-07-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |