CN210898809U - Speed reducing motor for fan - Google Patents
Speed reducing motor for fan Download PDFInfo
- Publication number
- CN210898809U CN210898809U CN201922085120.7U CN201922085120U CN210898809U CN 210898809 U CN210898809 U CN 210898809U CN 201922085120 U CN201922085120 U CN 201922085120U CN 210898809 U CN210898809 U CN 210898809U
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- shaft
- helical gear
- fan
- gear
- output shaft
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Abstract
The utility model provides a fan gear motor, relates to motor technical field, includes motor and reducing gear box, the motor includes the casing, the drive shaft is installed to the casing internal rotation, the reducing gear box includes the box, output shaft and transmission shaft are installed to the box internal rotation, the output shaft with transmission shaft axis parallel arrangement, the axis of drive shaft is on a parallel with the axis of output shaft, the drive shaft with be equipped with first gear train between the transmission shaft, the transmission shaft with be equipped with the second gear train between the output shaft, one way clutch is equipped with on the output shaft. The utility model discloses fan gear motor makes the axial force between drive shaft and the output shaft offset mutually to guarantee the steady output of output shaft and drive shaft, can protect the bearing of installing in the drive shaft, improve the life of bearing.
Description
Technical Field
The utility model belongs to the technical field of the motor, in particular to fan gear motor.
Background
The industrial fan can most effectively push a large amount of air to move to generate super large air quantity, so that a moving and circulating airflow field is formed in a space, the air circulation problem of an industrial production workshop can be effectively regulated and controlled, and the blowing area of the industrial fan is directly related to the diameter of the fan.
The industrial fan is widely applied in factories, the industrial fan generally needs to work for a long time, in order to provide large air volume, the length of the fan blades of the industrial fan is long, the rotating speed of the industrial fan is high, a driving shaft in a traditional fan motor is directly meshed with an output shaft, the fan blades generate great axial thrust when rotating, the axial thrust acts on the driving shaft, the driving shaft is subjected to great axial force, a ball bearing installed on the driving shaft is easy to damage, and the service life of the bearing is short. Therefore the utility model provides a fan gear motor is in order to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fan gear motor to the not enough of prior art existence, concrete technical scheme as follows:
a fan speed reduction motor comprises a motor and a reduction gearbox, wherein the motor comprises a shell, a driving shaft is rotatably mounted in the shell, the reduction gearbox comprises a box body, an output shaft and a transmission shaft are rotatably mounted in the box body, the axes of the output shaft and the transmission shaft are arranged in parallel, and the axis of the driving shaft is parallel to the axis of the output shaft;
a first gear set is arranged between the driving shaft and the transmission shaft, a second gear set is arranged between the transmission shaft and the output shaft, the front end of the driving shaft is installed in the box body through a ball bearing, and a fan is fixedly installed at the tail end of the driving shaft.
Further, the rotor is installed to the casing internal rotation, the rotor with drive shaft fixed connection, shells inner wall fixed mounting has the stator, the stator sets up the week side of rotor, the casing afterbody is provided with the tail cover, install the bracket in the casing, the bracket is located the top of tail cover.
Furthermore, the first gear set is a cylindrical bevel gear set, and the second gear set is a cylindrical bevel gear set.
Further, first gear train includes first cylinder helical gear, first cylinder helical gear sets up the tip of drive shaft, install second cylinder helical gear on the transmission shaft, second gear train includes third cylinder helical gear, third cylinder helical gear with transmission shaft coaxial arrangement, install fourth cylinder helical gear on the output shaft, the output shaft with install one way clutch between the fourth cylinder helical gear.
Further, the pitch circle diameter of the first cylindrical helical gear is smaller than the pitch circle diameter of the second cylindrical helical gear, and the pitch circle diameter of the third cylindrical helical gear is smaller than the pitch circle diameter of the fourth cylindrical helical gear.
Furthermore, an end cover is arranged at the bottom of the box body, the front end of the driving shaft is mounted on the end cover bearing seat through a ball bearing, and the lower end of the driving shaft is mounted on the bracket through a ball bearing.
Further, the fan is located between the bracket and the tail cap.
The utility model has the advantages that:
1. the transmission efficiency of the reduction box is improved by arranging two sets of gear sets, namely the first gear set and the second gear set, and axial thrust generated by the rotation of the fan is mutually offset between the transmission shaft and the output shaft, so that the stable output of the output shaft and the driving shaft is ensured, and the service life of the ball bearing is prolonged;
2. the utility model discloses fan gear motor has that transmission efficiency is high, the output is steady, transmission performance is good, effectively reduce the noise of reducing gear box.
Drawings
Fig. 1 shows a schematic structural diagram of a fan speed reduction motor of the present invention;
shown in the figure: 1. motor, 2, reducing gear box, 3, output shaft, 4, ball bearing, 5, transmission shaft, 6, second gear train, 6a, third cylinder helical gear, 6b, fourth cylinder helical gear, 7, casing, 8, rotor, 9, stator, 10, bracket, 11, tail cover, 12, fan, 13, one-way clutch, 14, drive shaft, 15, end cover, 16, first gear train, 16a, first cylinder helical gear, 16b, second cylinder helical gear, 17, box.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A fan speed reduction motor comprises a motor 1 and a reduction gearbox 2, wherein the motor 1 comprises a shell 7, a driving shaft 14 is rotatably installed in the shell 7, a rotor 8 is rotatably installed in the shell 7, the rotor 8 is fixedly connected with the driving shaft 14, a stator 9 is fixedly installed on the inner wall of the shell 7, the stator 9 is arranged on the peripheral side of the rotor 8, a tail cover 11 is arranged at the tail part of the shell 7, a bracket 10 is installed in the shell 7, the bracket 10 is positioned above the tail cover 11, the reduction gearbox 2 comprises a box body 17, an output shaft 3 and a transmission shaft 5 are rotatably installed in the box body 17, the axes of the output shaft 3 and the transmission shaft 5 are arranged in parallel, and;
the axes of the output shaft 3, the transmission shaft 5 and the driving shaft 14 are arranged in parallel, so that the transmission performance among the three is good and the output is stable;
a first gear set 16 is arranged between the driving shaft 14 and the driving shaft 5, a second gear set 6 is arranged between the driving shaft 5 and the output shaft 3, the first gear set 16 is a cylindrical helical gear set, the second gear set 6 is a cylindrical helical gear set, the front end of the driving shaft 14 is installed in a box body 17 through a ball bearing 4, a fan 12 is fixedly installed at the tail end of the driving shaft 14, the first gear set 16 comprises a first cylindrical helical gear 16a, the first cylindrical helical gear 16a is arranged at the end part of the driving shaft 14, a second cylindrical helical gear 16b is installed on the driving shaft 5, the second gear set 6 comprises a third cylindrical helical gear 6a, the third cylindrical helical gear 6a is coaxially installed with the driving shaft 5, a fourth cylindrical helical gear 6b is installed on the output shaft 3, a one-way clutch 13 is installed between the output shaft 3 and the fourth cylindrical helical gear 6b, the pitch circle diameter of the first cylindrical helical gear 16a is, the pitch circle diameter of the third cylindrical helical gear 6a is smaller than that of the fourth cylindrical helical gear 6 b;
through the arrangement of the first gear set 16 and the second gear set 6, the fan 12 generates axial thrust when rotating, the driving shaft 14 drives the transmission shaft 5 to rotate through the first gear set 16, the transmission shaft 5 drives the output shaft 3 to rotate through the second gear set 6, and the axial thrust is mutually offset between the transmission shaft 5 and the output shaft 3, so that the stable output of the output shaft 3 and the driving shaft 14 is ensured, and the service life of the ball bearing 4 is prolonged;
as an improvement of the above technical solution, an end cover 15 is arranged at the bottom of the box 17, the front end of the driving shaft 14 is mounted on a bearing seat of the end cover 15 through a ball bearing 4, the lower end of the driving shaft 14 is mounted on the bracket 10 through the ball bearing 4, and the fan 12 is located between the bracket 10 and the tail cover 11;
the lower end of the driving shaft 14 is provided to be mounted on the bracket 10 through the ball bearing 4 so that the fan 12 is stabilized while rotating;
when the utility model is implemented, the utility model,
the output shaft 3 drives the fourth cylindrical helical gear 6b to rotate, the fourth cylindrical helical gear 6b drives the third cylindrical helical gear 6a to rotate, the third cylindrical helical gear 6a drives the transmission shaft 5 to rotate, the transmission shaft 5 drives the second cylindrical helical gear 16b to rotate, the second cylindrical helical gear 16b drives the first cylindrical helical gear 16a to rotate, the first cylindrical helical gear 16a drives the driving shaft 14, the driving shaft 14 drives the fan 12 to rotate, the fan 12 generates a great axial thrust during rotation, the axial thrust acts on the driving shaft 14, the driving shaft 14 drives the transmission shaft 5 to rotate through the first gear set 16, the transmission shaft 5 drives the output shaft 3 to rotate through the second gear set 6, and the axial thrust is mutually offset between the transmission shaft 5 and the output shaft 3, thereby ensuring the smooth output of the output shaft 3 and the driving shaft 14 and improving the service life of the ball bearing 4.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A fan speed reduction motor comprises a motor (1) and a reduction gearbox (2), wherein the motor (1) comprises a shell (7), a driving shaft (14) is rotatably mounted in the shell (7), and the fan speed reduction motor is characterized in that the reduction gearbox (2) comprises a box body (17), an output shaft (3) and a transmission shaft (5) are rotatably mounted in the box body (17), the axes of the output shaft (3) and the transmission shaft (5) are arranged in parallel, and the axis of the driving shaft (14) is parallel to the axis of the output shaft (3);
a first gear set (16) is arranged between the driving shaft (14) and the transmission shaft (5), a second gear set (6) is arranged between the transmission shaft (5) and the output shaft (3), the front end of the driving shaft (14) is installed in the box body (17) through a ball bearing (4), and a fan (12) is fixedly installed at the tail end of the driving shaft (14).
2. The fan motor according to claim 1, wherein: rotor (8) are installed to casing (7) internal rotation, rotor (8) with drive shaft (14) fixed connection, casing (7) inner wall fixed mounting has stator (9), stator (9) set up the week side of rotor (8), casing (7) afterbody is provided with tail cover (11), install bracket (10) in casing (7), bracket (10) are located the top of tail cover (11).
3. The fan speed reduction motor according to claim 2, wherein: the first gear set (16) is a cylindrical bevel gear set, and the second gear set (6) is a cylindrical bevel gear set.
4. A fan speed reduction motor according to claim 3, wherein: first gear train (16) include first cylinder helical gear (16a), first cylinder helical gear (16a) set up the tip of drive shaft (14), install second cylinder helical gear (16b) on transmission shaft (5), second gear train (6) include third cylinder helical gear (6a), third cylinder helical gear (6a) with transmission shaft (5) coaxial arrangement, install fourth cylinder helical gear (6b) on output shaft (3), output shaft (3) with one-way clutch (13) are installed to fourth cylinder helical gear (6b) within a definite time.
5. The fan motor according to claim 4, wherein: the pitch circle diameter of the first cylindrical helical gear (16a) is smaller than that of the second cylindrical helical gear (16b), and the pitch circle diameter of the third cylindrical helical gear (6a) is smaller than that of the fourth cylindrical helical gear (6 b).
6. The fan motor according to claim 5, wherein: an end cover (15) is arranged at the bottom of the box body (17), the front end of the driving shaft (14) is installed on a bearing seat of the end cover (15) through a ball bearing (4), and the lower end of the driving shaft (14) is installed on the bracket (10) through the ball bearing (4).
7. The fan motor according to claim 6, wherein: the fan (12) is located between the bracket (10) and the tail cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085120.7U CN210898809U (en) | 2019-11-28 | 2019-11-28 | Speed reducing motor for fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922085120.7U CN210898809U (en) | 2019-11-28 | 2019-11-28 | Speed reducing motor for fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210898809U true CN210898809U (en) | 2020-06-30 |
Family
ID=71319078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922085120.7U Active CN210898809U (en) | 2019-11-28 | 2019-11-28 | Speed reducing motor for fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210898809U (en) |
-
2019
- 2019-11-28 CN CN201922085120.7U patent/CN210898809U/en active Active
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