CN217769739U

CN217769739U - Motor shaft for high-coaxiality miniature motor

Info

Publication number: CN217769739U
Application number: CN202221228752.XU
Authority: CN
Inventors: 杨俊文; 望龙飞; 邓永财; 梁建忠
Original assignee: Dongguan Yuankaixin Precision Technology Co ltd
Current assignee: Dongguan Yuankaixin Precision Technology Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-11-08
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses a high axiality motor shaft for micromotor belongs to high axiality technical field for the micromotor. The utility model discloses a high axiality motor shaft for micro motor, including the motor shaft, the one end of motor shaft is provided with the deceleration head, the surface of motor shaft is provided with anti-skidding recess, the inside of motor shaft injection unit, the surface of anti-skidding recess is provided with antifriction bearing, and antifriction bearing and motor shaft rotate to be connected, antifriction bearing's one end is provided with the front end housing, and the front end housing is connected with the antifriction bearing laminating. The anti-skidding groove helps a motor bearing to be more stable and not easy to damage when the motor runs, so that the micro motor can work more efficiently, and the problems that the rotating speed of the micro motor is high, the torsion is small, the heat productivity is increased, and the voltage of a power supply line is increased are solved.

Description

Motor shaft for high-coaxiality miniature motor

Technical Field

The utility model relates to a high axiality is motor shaft for miniature motor technical field specifically for a high axiality miniature motor.

Background

The miniature motor is a motor with small volume and capacity and output power of below several hundred watts. The device is commonly used in a control system or a transmission mechanical load and is used for realizing the functions of detecting, analyzing and operating, amplifying, executing or converting electromechanical signals or energy and the like.

However, the existing miniature motor has a small gear, so that the rotating speed is also increased, and a good reduction ratio is not available; thus, the present need is not met, and we propose a motor shaft for a high-coaxiality micromotor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high axiality motor shaft for micromotor has high axiality micromotor and uses, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the motor shaft for the high-coaxiality miniature motor comprises a motor shaft, wherein a speed reducing head is arranged at one end of the motor shaft, and an anti-skidding groove is formed in the outer surface of the motor shaft.

Preferably, the motor shaft penetrates into the inside of the unit, the outer surface of the anti-skidding groove is provided with a rolling bearing, the rolling bearing is connected with the motor shaft in a rotating mode, one end of the rolling bearing is provided with a front end cover, the front end cover is connected with the rolling bearing in a laminating mode, one end of the front end cover is provided with a rotor magnet, the rotor magnet is connected with the motor shaft in a rotating mode, stator coils are arranged on the periphery of the rotor magnet, and the stator coils are fixedly connected with the unit.

Preferably, one end of the speed reducing head is provided with an internal gear, the internal gear is attached to the speed reducing head and connected with the speed reducing head, a central gear is arranged on the outer surface of the internal gear, and the internal gear is rotatably connected with the central gear.

Preferably, the one end of sun gear is provided with interior end cover, and interior end cover is connected with the sun gear laminating, the one end of interior end cover is provided with radiator fan, and radiator fan and motor shaft rotate to be connected, the surface of unit is provided with the fan housing, and fan housing and unit built-up connection, the surface of fan housing is provided with outer end cover, and outer end cover and fan housing set up to built-up connection, the surface of outer end cover is provided with the heat dissipation muscle, and the heat dissipation muscle sets up to the integral type structure with outer end cover.

Preferably, the outer surface of the fan housing is provided with an outer end cover, the outer end cover and the fan housing are arranged to be connected in a combined mode, the outer surface of the outer end cover is provided with a heat dissipation rib, the heat dissipation rib and the outer end cover are arranged to be of an integrated structure, fixing feet are arranged below the unit, and the fixing feet are connected with the unit in a welded mode.

Preferably, the outer surface of the speed reducing head is provided with a dodecagonal shaft head.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a carry out degree of depth design to the motor bearing, reduce the diameter size of the one end of motor bearing for the gear can have more space work, and the gear grow becomes many, provides help to micro motor's speed reduction so, because at the bottom of the speed, the deceleration ratio so is high, makes the torque of product diminish, has improved micro motor's life.

2. The utility model discloses a design to having done a lot of recesses on the motor bearing makes micro motor increase the frictional force of motor bearing at the in-process of start-up operation, avoids because the production slip damage of skidding constitutes the threat to normal, reliable work of engine.

3. The utility model discloses a design into the dodecagonal spindle nose at the tip of motor bearing, increase the driving force, assemble convenience more. While acting as a high degree of coaxiality.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is an overall cross-sectional view of the present invention;

FIG. 3 is a schematic view of the structure of the speed reducer of the present invention;

fig. 4 is a schematic view of a dodecagonal shaft structure according to the present invention.

In the figure: 1. a motor shaft; 2. a speed reduction head; 3. an anti-slip groove; 4. a dodecagonal shaft head; 5. a unit; 6. a rolling bearing; 7. a front end cover; 8. a rotor magnet; 9. a stator coil; 10. an internal gear; 11. a sun gear; 12. an inner end cap; 13. a heat-dissipating fan; 14. a fan housing; 15. an outer end cover; 16. heat dissipation ribs; 17. and fixing the feet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides an embodiment: the utility model provides a high axiality motor shaft for micromotor, includes motor shaft 1, motor shaft 1's one end is provided with deceleration head 2, motor shaft 1's surface is provided with anti-skidding recess 3, with the help of motor shaft 1's deceleration head 2, obtain a big reduction ratio, ensure effective balance between deceleration head 2 and the internal gear 10 simultaneously, anti-skidding recess 3 helps the motor bearing more firm when the motor operation, and is difficult for damaging, makes micromotor work more efficiently.

Referring to fig. 2, a motor shaft 1 penetrates into an interior of a unit 5, a rolling bearing 6 is disposed on an outer surface of an anti-slip groove 3, the rolling bearing 6 is rotatably connected with the motor shaft 1, a front end cap 7 is disposed at one end of the rolling bearing 6, the front end cap 7 is attached to the rolling bearing 6, a rotor magnet 8 is disposed at one end of the front end cap 7, the rotor magnet 8 is rotatably connected with the motor shaft 1, stator coils 9 are disposed around the rotor magnet 8, the stator coils 9 are fixedly connected with the unit 5, an inner gear 10 is disposed at one end of a deceleration head 2, the inner gear 10 is attached to the deceleration head 2, a central gear 11 is disposed on an outer surface of the inner gear 10, the inner gear 10 is rotatably connected with the central gear 11, an inner end cap 12 is disposed at one end of the central gear 11, the inner end cap 12 is attached to the central gear 11, and a heat dissipation fan 13 is disposed at one end of the inner end cap 12, the heat dissipation fan 13 is rotatably connected with the motor shaft 1, a fan cover 14 is arranged on the outer surface of the unit 5, the fan cover 14 is connected with the unit 5 in a combined manner, an outer end cover 15 is arranged on the outer surface of the fan cover 14, the outer end cover 15 and the fan cover 14 are arranged in a combined manner, a heat dissipation rib 16 is arranged on the outer surface of the outer end cover 15, the heat dissipation rib 16 and the outer end cover 15 are arranged in an integrated manner, a fixing pin 17 is arranged below the unit 5, the fixing pin 17 is connected with the unit 5 in a welding manner, and a motor bearing operated by a high-coaxiality micro motor is used, the speed reduction head 2 of the motor firstly contacts the internal gear 10 when the unit 5 is operated, the size of the internal gear 10 is increased, the internal gear is increased, the central gear 11 is driven, the buffer space is enlarged, the rotating speed is reduced, the transmission efficiency is high, the energy consumption is low, the motor bearing 1 is designed in the stator coil 9 and the rotor magnet 8 inside the unit 5, the sliding of the bearing is prevented from rubbing the motor, the performance is more stable, and the transmission precision is high.

Referring to fig. 3 to 4, the outer surface of the speed reduction head 2 is provided with the dodecagonal shaft head 4, so that the design of the dodecagonal shaft head 4 is increased while the diameter size of the motor shaft 1 is reduced, the contact area between the motor shaft 1 and the internal gear 10 is greatly increased, and the operation between the two is more stable.

In summary, the reduction ratio is improved by the gears by first designing the motor shaft 1 with a reduction head 2 to reduce the diameter size of the shaft, so that the internal gear 10 with a larger size can be replaced, because the more and the larger the gears are, the lower the rotation speed of the motor becomes, the higher the transmission efficiency of the micro motor becomes, the more energy saving and the lower the noise, and the end of the motor shaft 1 is designed with twelve angles to increase the friction area and reduce the occurrence of the anti-slip phenomenon, the outer surface of the motor shaft 1 is designed with a groove, when the components inside the motor and the motor shaft 1 run together, the design increases the friction force and also improves the resistance and reduces the internal loss of the motor due to the slip, because the motor shaft 1 is combined by the internal gear 10 and the central gear 11, the motor shaft 1 first rotates by the rotation of the two internal gears 10, then the two internal gears 10 are respectively rotated by the central gear 11, then the internal gears 10 are rotated by the relay, then the rotation of the micro motor shaft is respectively rotated by the central gear 11, finally collected on the central gear 11, and the rotation speed of the micro motor is reduced by the above program.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a motor shaft for high axiality micromotor, includes motor shaft (1), its characterized in that: one end of the motor shaft (1) is provided with a speed reducing head (2), and the outer surface of the motor shaft (1) is provided with an anti-skidding groove (3).

2. The motor shaft for a high coaxiality micromotor of claim 1, wherein: the motor shaft (1) penetrates into the inside of unit (5), the surface of antiskid recess (3) is provided with antifriction bearing (6), and antifriction bearing (6) rotate with motor shaft (1) and be connected, the one end of antifriction bearing (6) is provided with front end housing (7), and front end housing (7) are connected with antifriction bearing (6) laminating, the one end of front end housing (7) is provided with rotor magnet (8), and rotor magnet (8) rotate with motor shaft (1) and be connected, all be provided with stator coil (9) around rotor magnet (8), and stator coil (9) and unit (5) fixed connection.

3. The motor shaft for a high coaxiality micromotor according to claim 2, wherein: the one end of speed reduction head (2) is provided with internal gear (10), and internal gear (10) is connected with speed reduction head (2) laminating, the surface of internal gear (10) is provided with sun gear (11), and internal gear (10) and sun gear (11) rotate to be connected.

4. A motor shaft for a high coaxiality micromotor according to claim 3, wherein: the utility model discloses a fan assembly, including central gear (11), inner end cover (12), radiator fan (13), fan housing (5), fan housing (14), fan housing (5) and outer end cover (15), the surface of fan housing (14) is provided with outer end cover (15), and outer end cover (15) sets up to built-up connection with fan housing (14), the surface of outer end cover (15) is provided with heat dissipation muscle (16), and heat dissipation muscle (16) and outer end cover (15) set up to the integral type structure, and inner end cover (12) are laminated with central gear (11) and are connected, the one end of inner end cover (12) is provided with radiator fan (13), and radiator fan (13) rotate with motor shaft (1) and be connected, the surface of unit (5) is provided with fan housing (14), and fan housing (14) combination connection.

5. The motor shaft for a high coaxiality micromotor of claim 4, wherein: the lower part of the unit (5) is provided with a fixed foot (17), and the fixed foot (17) is connected with the unit (5) in a welding way.

6. The motor shaft for a high coaxiality micromotor of claim 1, wherein: the outer surface of the speed reducing head (2) is provided with a dodecagonal shaft head (4).