CN217427879U

CN217427879U - Waterproof embedded type L-shaped two-stage worm high-reduction-ratio micromotor

Info

Publication number: CN217427879U
Application number: CN202123082044.8U
Authority: CN
Inventors: 柯昌日; 李学贵; 胡康想; 郑少钧
Original assignee: Shanghai Bobang Automobile Technology Co ltd
Current assignee: Shanghai Bobang Automobile Technology Co ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-09-13
Anticipated expiration: 2031-12-09

Abstract

The utility model belongs to the technical field of the motor technique and specifically relates to a waterproof embedded L shape second grade worm high reduction ratio micromotor, including motor stator, gear box, output pivot, integral type brush yoke, motor stator sets up in the bottom of gear box one end, is equipped with the integral type brush yoke between motor stator and the gear box, is equipped with embedded water proof membrane on the contact surface of integral type brush yoke and motor stator, and the output pivot sets up the bottom at the gear box other end. Compared with the prior art, the utility model has the advantages that the size is reduced, the light weight is realized, and the sufficient output distance is ensured through the installation layout of the motor stator, the gear box and the output rotating shaft; realize waterproofly through the design of waterproof construction, satisfy IP54 electronic box protection level requirement. The utility model discloses a second grade worm transmission has that the speed reduction scope is wide, the volume is littleer, the part is few, simple to operate's characteristics.

Description

Waterproof embedded type L-shaped two-stage worm high-reduction-ratio micromotor

Technical Field

The utility model belongs to the technical field of the motor technique and specifically relates to a waterproof embedded L shape second grade worm high reduction ratio micromotor.

Background

Along with the improvement of living standard, everybody also is higher and higher to the requirement of car, and the size is little, the lightweight, but can realize waterproof, guarantee that enough output distance's motor more receives market favor simultaneously. The motors on the market do not meet the requirements at present.

Therefore, a waterproof embedded type L-shaped two-stage worm high-reduction-ratio micromotor needs to be designed, the size is reduced, the weight is reduced, meanwhile, the sufficient output distance can be guaranteed, and the waterproof performance is achieved.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, providing a little motor of waterproof embedded L shape second grade worm high reduction ratio, when reducing the size, realizing the lightweight, can guarantee sufficient output distance, realize waterproofly.

In order to achieve the purpose, the utility model provides a waterproof embedded L-shaped two-stage worm high reduction ratio micromotor, which comprises a motor stator, a gear box, an output rotating shaft and an integrated brush holder, wherein the motor stator is arranged at the bottom of one end of the gear box, the integrated brush holder is arranged between the motor stator and the gear box, an embedded waterproof film is arranged on the contact surface of the integrated brush holder and the motor stator, the output rotating shaft is arranged at the bottom of the other end of the gear box, a one-stage worm is arranged in the gear box, the motor rotor comprises a first-stage gear, a transmission shaft, a second-stage worm and a second-stage gear, wherein the first-stage worm is arranged on a rotor shaft of the motor rotor and meshed with the first-stage gear, the first-stage gear is arranged at one end of the transmission shaft, the second-stage worm is arranged at the other end of the transmission shaft and meshed with the second-stage gear, the second-stage gear is arranged on an output rotating shaft, and an O-shaped sealing ring is arranged between the second-stage gear and a gear box.

The motor stator and the gear box are L-shaped.

The gearbox comprises a gearbox body, a gearbox cover and a gearbox sealing gasket, wherein the gearbox cover is installed at the bottom of the gearbox body, the gearbox sealing gasket is arranged between the gearbox body and the gearbox cover, and the gearbox body and the gearbox cover are fixed through a second screw.

The integrated brush holder is of an integrated structure consisting of a Pin needle, a second oil-retaining bearing and a brush holder body, and the integrated brush holder is further provided with a torsional spring, a carbon brush, a PCB and the like.

The motor stator is connected with the gear box through a screw I.

The end part of the transmission shaft is arranged on the side surface of the gear box by adopting a bearing.

The axial direction of the rotor shaft is parallel to the axial direction of the output rotating shaft.

Two ends of the rotor shaft are provided with first oil-retaining bearings, and the end part of the rotor shaft is provided with axial rubber and a wear-resistant pad.

The rotor shaft is provided with a magnetic ring, the magnetic ring is in interference fit with the rotor shaft, and the PCB is welded with two Hall sensors.

Interference fit is formed between the first-stage worm and the rotor shaft and between the first-stage gear and the transmission shaft.

Compared with the prior art, the utility model has the advantages that the size is reduced, the light weight is realized, and the sufficient output distance is ensured through the installation layout of the motor stator, the gear box and the output rotating shaft; realize waterproofly through the design of waterproof construction, satisfy IP54 electronic box protection level requirement. The utility model discloses a second grade worm transmission has that the speed reduction scope is wide, the volume is littleer, the part is few, simple to operate's characteristics.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Detailed Description

The invention will now be further described with reference to the accompanying drawings.

Referring to fig. 1 and 2, the utility model provides a waterproof embedded type L-shaped two-stage worm high reduction ratio micromotor, which comprises a motor stator, a gear box, an output rotating shaft and an integrated brush holder, wherein the motor stator 1 is arranged at the bottom of one end of the gear box, the integrated brush holder 4 is arranged between the motor stator 1 and the gear box, an embedded type waterproof film 20 is arranged on the contact surface of the integrated brush holder 4 and the motor stator 1, the output rotating shaft 5 is arranged at the bottom of the other end of the gear box, a first-stage worm 16, a first-stage gear 12, a transmission shaft 11, a second-stage worm 9 and a second-stage gear 8 are arranged in the gear box, the first-stage worm 16 is arranged on a rotor shaft 28 of a motor rotor 23, the first-stage worm 16 is meshed with the first-stage gear 12, the first-stage gear 12 is arranged at one end of the transmission shaft 11, the second-stage worm 9 is arranged at the other end of the transmission shaft 11, and the second-stage worm 9 is meshed with the second-stage gear 8, the secondary gear 8 is arranged on the output rotating shaft 5, and an O-shaped sealing ring 7 is arranged between the secondary gear 8 and the gear box.

The utility model discloses in, motor stator 1 is L shape with the gear box, and the structural design of L shape is compacter, realizes the light weight miniaturization better.

The gearbox comprises a gearbox body 17, a gearbox cover 19 and a gearbox sealing gasket 18, wherein the gearbox cover 19 is installed at the bottom of the gearbox body 17, the gearbox sealing gasket 18 is arranged between the gearbox body 17 and the gearbox cover 19, and the gearbox body 17 and the gearbox cover 19 are fixed through a second screw 6, so that quick-wear parts in the gearbox can be conveniently repaired and replaced.

In order to facilitate installation, the motor stator 1 is connected with the gear box through a first screw 2. The end of the transmission shaft 11 is mounted on the side of the gear box by a bearing 10.

For the convenience of transmission, interference fit is formed between the first-stage worm 16 and the rotor shaft 28 and between the first-stage gear 12 and the transmission shaft 11.

The axial direction of the rotor shaft 28 is parallel to the axial direction of the output rotating shaft 5, the distance between the axial line of the rotor shaft 28 and the axial line of the output rotating shaft 5 is the output distance of the motor, and the output distance of the motor can be adjusted by adjusting the length of the transmission shaft 11.

The integrated brush holder 4 is an integrated structure consisting of the Pin needle 3, the second oil-retaining bearing 24 and the brush holder body 27, and the circuit is stable. The integrated brush holder 4 is also provided with a torsion spring 21, a carbon brush 22 and a PCB 26.

The rotor shaft 28 is provided with a magnetic ring 25, the magnetic ring 25 is in interference fit with the rotor shaft 28 and rotates together with the rotor shaft 28, and the PCB 26 is welded with two Hall sensors to ensure the relative position of the magnetic ring 25 and ensure the normal collection of Hall signals.

Both ends of the rotor shaft 28 are provided with oil-retaining bearings 13, the end part of the rotor shaft 28 is provided with axial rubber 15 and a wear pad 14, and the axial rubber 15 is used for buffering and absorbing axial accumulated tolerance of each part. The axial spherical points at the two ends of the rotor shaft 28 are stressed, the mechanical loss is small, and the radial 3 oil-containing bearings support the operation at higher rotating speed.

The utility model discloses at the during operation, after the motor circular telegram, high-speed rotatory rotor shaft 28 drives one-level worm 16, and one-level worm 16 meshes drive one-level gear 12 and rotates, has accomplished the one-level speed reduction. The primary gear 12 rotates to drive the secondary worm 9 to be meshed with the secondary gear 8 through the transmission shaft 11, secondary speed reduction is completed, and speed reduction and torque increase of the motor are realized. The design of the embedded waterproof membrane 20, the gear box sealing gasket 18 and the O-shaped sealing ring 7 ensures the waterproofness and meets the protection grade requirement of the IP54 electric box.

When the first-stage reduction ratio and the second-stage reduction ratio need to be changed, the tooth numbers of the first-stage worm 16, the first-stage gear 12, the two-stage worm 9 and the second-stage gear 8 only need to be replaced according to the corresponding reduction ratios.

The utility model has the advantages that the size is reduced, the light weight is realized, and the sufficient output distance is ensured through the installation layout of the motor stator, the gear box and the output rotating shaft; realize waterproofly through the design of waterproof construction, satisfy IP54 electronic box protection level requirement. The utility model discloses a second grade worm drive has that the speed reduction scope is wide, the volume is littleer, the part is few, simple to operate's characteristics.

Claims

1. The utility model provides a little motor of waterproof embedded L shape second grade worm high reduction ratio, includes motor stator, gear box, output pivot, integral type brush yoke, its characterized in that: the motor stator (1) is arranged at the bottom of one end of the gear box, an integrated brush holder (4) is arranged between the motor stator (1) and the gear box, an embedded waterproof film (20) is arranged on the contact surface of the integrated brush holder (4) and the motor stator (1), an output rotating shaft (5) is arranged at the bottom of the other end of the gear box, a first-stage worm (16) is arranged in the gear box, a first-stage gear (12), a transmission shaft (11), a second-stage worm (9) and a second-stage gear (8) are arranged on the contact surface of the integrated brush holder (4) and the motor stator (1), the first-stage worm (16) is meshed with the first-stage gear (12), the first-stage gear (12) is arranged at one end of the transmission shaft (11), the second-stage worm (9) is arranged at the other end of the transmission shaft (11), the second-stage worm (9) is meshed with the second-stage gear (8), the second-stage gear (8) is arranged on the output rotating shaft (5), an O-shaped sealing ring (7) is arranged between the secondary gear (8) and the gear box.

2. The waterproof embedded type L-shaped two-level worm high reduction ratio micromotor according to claim 1, characterized in that: the motor stator (1) and the gear box are L-shaped.

3. The waterproof embedded type L-shaped two-stage worm high reduction ratio micromotor according to claim 1, characterized in that: the gearbox comprises a gearbox body (17), a gearbox cover (19) and a gearbox sealing gasket (18), wherein the gearbox cover (19) is installed at the bottom of the gearbox body (17), the gearbox sealing gasket (18) is arranged between the gearbox body (17) and the gearbox cover (19), and the gearbox body (17) and the gearbox cover (19) are fixed through a second screw (6).

4. The waterproof embedded type L-shaped two-level worm high reduction ratio micromotor according to claim 1, characterized in that: the integrated brush holder (4) is of an integrated structure consisting of a Pin needle (3), an oil-retaining bearing II (24) and a brush holder body (27), and the integrated brush holder (4) is further provided with a torsion spring (21), a carbon brush (22) and a PCB (printed circuit board) (26).

5. The waterproof embedded type L-shaped two-stage worm high reduction ratio micromotor according to claim 1, characterized in that: the motor stator (1) is connected with the gear box through a first screw (2).

6. The waterproof embedded type L-shaped two-stage worm high reduction ratio micromotor according to claim 1, characterized in that: the end part of the transmission shaft (11) is arranged on the side surface of the gear box by adopting a bearing (10).

7. The waterproof embedded type L-shaped two-level worm high reduction ratio micromotor according to claim 1, characterized in that: the axial direction of the rotor shaft (28) is parallel to the axial direction of the output rotating shaft (5).

8. The waterproof embedded type L-shaped two-stage worm high reduction ratio micromotor according to claim 1, characterized in that: two ends of the rotor shaft (28) are provided with a first oil-containing bearing (13), and the end part of the rotor shaft (28) is provided with axial rubber (15) and a wear pad (14).

9. The waterproof embedded type L-shaped two-stage worm high reduction ratio micromotor according to claim 1, characterized in that: the rotor shaft (28) is provided with a magnetic ring (25), the magnetic ring (25) is in interference fit with the rotor shaft (28), and the PCB (26) is welded with two Hall sensors.

10. The waterproof embedded type L-shaped two-stage worm high reduction ratio micromotor according to claim 1, characterized in that: interference fit is formed between the first-stage worm (16) and the rotor shaft (28) and between the first-stage gear (12) and the transmission shaft (11).