CN212131210U

CN212131210U - Dual-output rotating speed motor for actuating mechanism for switching gear positions of transfer case

Info

Publication number: CN212131210U
Application number: CN202020799013.0U
Authority: CN
Inventors: 刘之明
Original assignee: Shandong Taizhan Mechanical And Electrical Technology Co ltd
Current assignee: Shandong Taizhan Mechanical And Electrical Technology Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-11
Anticipated expiration: 2030-05-14

Abstract

The utility model discloses a switch double output speed motor for actuating mechanism that transfer case kept off position belongs to motor technical field, and it is including the rotor of installation in the casing down, and the pivot is assembled in the rotor, and the pivot stretches out from the bottom of lower end cover and forms first output shaft, characterized in that: the gear ring is arranged on the inner wall of the upper shell, the bearing piece is fixed at the top of the lower shell, the bearing piece is provided with a connecting arm protruding upwards, the connecting arm is provided with teeth, and the teeth are assembled on the gear ring; a planetary gear is arranged in the upper shell, a second output shaft is connected to the planetary gear, and the second output shaft extends out of the top of the upper shell. The motor is downwards fixed on the lower shell through the bearing piece and upwards assembled with the gear ring of the upper shell through the upper teeth of the connecting arm, so that the circumferential stable positioning of the upper shell is realized, and the circumferential connecting strength is increased; meanwhile, the upper part of the rotating shaft is decelerated through the first planetary gear, and the torque of the second output shaft is increased.

Description

Dual-output rotating speed motor for actuating mechanism for switching gear positions of transfer case

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to switch double output speed motor for actuating mechanism that transfer case kept off position.

Background

The transfer case is a device that distributes power of the engine, and can output the power to the rear axle or both the front axle and the rear axle. The automobile with the transfer case is mainly used on hard off-road vehicles, wherein power is transmitted to the transfer case through the transmission shaft, then is transmitted to the front shaft and the rear shaft through the transfer case, and can be switched between a rear drive and a four-drive.

With the high-speed development of electronic technology, the switching of the working state of the transfer case needs an electronic actuating mechanism to be accurately completed. The applicant has researched several transfer case actuating mechanisms, and the corresponding technology has proposed the patent application to the national patent office to obtained the patent right, like application number 201721006536.X, the name is the utility model patent of the actuating mechanism that the transfer case kept off the position for an accurate switching, application number 201721006532.1, the name is the actuating mechanism's that an automatic switching transfer case kept off the position utility model patent and application number 201820948439.0, the name is the utility model patent of the transfer case actuating mechanism of an accurate control corner.

The executing mechanisms all adopt the motor as a power source, and in the practical application process, the problems that the output torque of the motor is not large enough and even the motor is easy to damage exist.

Disclosure of Invention

The utility model aims to solve the technical problem that a switch transfer case keeps off position is dual output speed motor for actuating mechanism is provided, in the increase output torque, has increased the joint strength between last casing and lower casing.

In order to solve the technical problem, the technical scheme of the utility model is that: the design is a double-output rotating speed motor for an actuating mechanism for switching transfer case gears, and comprises a lower shell, wherein a rotor is arranged in the lower shell, a rotating shaft is assembled in the rotor, and the rotating shaft extends out of the bottom of a lower end cover to form a first output shaft, and the double-output rotating speed motor is characterized in that: the gear ring is arranged on the inner wall of the upper shell, the bearing piece is fixed at the top of the lower shell, the bearing piece is provided with a connecting arm protruding upwards, the connecting arm is provided with teeth, and the teeth are assembled on the gear ring;

the upper shell is internally provided with a first planetary gear which comprises a first sun gear and a first planet carrier, the first sun gear is arranged at the top of the rotating shaft, the first planet carrier is fixedly provided with more than three first planet gears, the more than three first planet gears are uniformly distributed along the circumferential direction of the first sun gear, the inner side of each first planet gear is meshed with the first sun gear, the outer side of each first planet gear is meshed with the gear ring, the first planet carrier is connected with a second output shaft, and the second output shaft extends out of the top of the upper shell.

Preferably, the bearing piece is provided with more than two pin shafts, and the pin shafts are connected in the upper shell in a pin mode.

Preferably, the pin shafts are uniformly distributed along the circumferential direction of the bearing piece.

Preferably, a second planetary gear is installed between the first planetary gear and the second output shaft, the second planetary gear includes a second sun gear and a second planet carrier, the second sun gear is fixed on the first planet carrier and coaxially arranged with the rotating shaft, the second planet carrier is fixed with more than three second planetary gears, the more than three second planetary gears are uniformly distributed along the circumferential direction of the second sun gear, the inner side of each second planetary gear is meshed with the second sun gear, the outer side of each second planetary gear is meshed with the gear ring, and the second output shaft is connected with the second planet carrier.

Preferably, a third planetary gear is mounted between the second planetary gear and the second output shaft, the third planetary gear includes a third sun gear and a third planet carrier, the third sun gear is fixed on the second planet carrier and coaxially arranged with the rotating shaft, the third planet carrier is fixed with more than three third planetary gears, the more than three third planetary gears are uniformly distributed along the circumferential direction of the third sun gear, the inner side of the third planetary gear is meshed with the third sun gear, the outer side of the third planetary gear is meshed with the gear ring, and the second output shaft is arranged on the third planet carrier.

Preferably, a bearing is arranged between the second output shaft and the upper shell

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

1. the bearing piece is additionally arranged between the upper shell and the lower shell, is downwards fixed on the lower shell and upwards assembled with the gear ring of the upper shell through the teeth on the connecting arm, so that the circumferential stable positioning of the upper shell is realized, the circumferential connecting strength between the upper shell and the lower shell is increased, and the service life is prolonged; meanwhile, the upper part of the rotating shaft is decelerated through the first planetary gear, so that the torque of the second output shaft is increased, and the rotating shaft can be adjusted through the reduction ratio of the first planetary gear.

2. Because the bearing piece is provided with more than two pin shafts, the pin shafts are connected in the upper shell in a pin mode, and the connection strength between the upper shell and the lower shell is further improved.

3. Because the round pin axle has improved the homogeneity that joint strength distributes along the circumference evenly distributed of accepting the piece, do benefit to the life of connecting portion between upper and lower casing more.

4. Because the first planetary gear, the second planetary gear and the third planetary gear are in cascade connection, three-stage speed reduction is realized, the rotating speed of the second output shaft is further reduced, the output torque of the second output shaft is increased, and therefore gears of the transfer case can be reliably switched.

5. Because the bearing is arranged between the second output shaft and the upper shell, the bearing effect on the second output shaft is achieved, the friction force generated when the second output shaft rotates is reduced, and the second output shaft rotates more smoothly.

6. The utility model discloses simple structure can increase the moment of torsion of second output shaft, can increase the joint strength between the casing again, guarantees the firm output of second output shaft, improves its operational reliability, is convenient for popularize and apply in industry.

Drawings

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

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 2;

fig. 4 is an enlarged sectional view of C-C in fig. 3.

The labels in the figure are: 1. a lower housing; 2. a rotor; 3. a rotating shaft; 4. a first output shaft; 5. a receiving member; 6. a connecting arm; 7. an upper housing; 8. a second output shaft; 9. a first sun gear; 10. a first planet gear; 11. a first carrier; 12. a second sun gear; 13. a second planet wheel; 14. a second planet carrier; 15. a third sun gear; 16. a third planet gear; 17. a third carrier; 18. a pin shaft; 19. a ring gear.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

When the utility model is in the placing state shown in fig. 1, one end close to the ground is defined as the lower end, and the other end far away from the ground is correspondingly defined as the upper end; defining the side close to the center of the rotating shaft 3 as the inner side; the other side from the center of the rotation shaft 3 is defined as an outer side accordingly.

As shown in fig. 1, 2 and 3, the present invention installs a rotor 2 in a lower casing 1, the rotor 2 is equipped with a rotating shaft 3, and the rotating shaft 3 extends from the bottom of the lower end cover to form a first output shaft 4. The inner wall of the upper shell 7 is provided with teeth to form a gear ring 19, so that the gear ring 19 and the upper shell 7 are of an integrated structure, the top of the lower shell 1 is fixed with the bearing piece 5, the bearing piece 5 is provided with three pin shafts 18 which are transversely arranged and uniformly distributed along the circumferential direction of the bearing piece 5, and the pin shafts 18 are in pin joint with the upper shell 7. The bearing piece 5 is provided with a connecting arm 6 which protrudes upwards, and the connecting arm 6 is provided with teeth which are assembled on the gear ring 19. As shown in fig. 4, a first planetary gear is mounted in the upper housing 7, a first sun gear 9 and a first planet carrier 11 are disposed in the first planetary gear, the first sun gear 9 is mounted on the top of the rotating shaft 3, three first planet gears 10 are fixed on the first planet carrier 11, the three first planet gears 10 are uniformly distributed along the circumferential direction of the first sun gear 9, the inner side of the first planet gears 10 is meshed with the first sun gear 9, and the outer side of the first planet gears 10 is meshed with the ring gear 19.

In order to obtain a larger reduction ratio, a second planetary gear and a third planetary gear are further arranged in the upper shell 7, and the first planetary gear, the second planetary gear and the third planetary gear are connected in a cascade structure. Namely, the second sun gear 12 is fixed on the first planet carrier 11 and is coaxially arranged with the rotating shaft 3, the second planet carrier 14 is fixed with three second planet gears 13, the three second planet gears 13 are uniformly distributed along the circumferential direction of the second sun gear 12, the inner side of the second planet gear 13 is meshed with the second sun gear 12, and the outer side of the second planet gear 13 is meshed with the gear ring 19. A third sun gear 15 is fixed on the second planet carrier 14, the third sun gear 15 is coaxially arranged with the rotating shaft 3, three third planet gears 16 are fixed on the third planet carrier 17, the three third planet gears 16 are uniformly distributed along the circumferential direction of the third sun gear 15, the inner sides of the third planet gears 16 are meshed with the third sun gear 15, the outer sides of the third planet gears 16 are meshed with a gear ring 19, a second output shaft 8 is fixed on the third planet carrier 17, the second output shaft 8 extends out of the top of the upper shell 7, and a bearing is arranged between the second output shaft 8 and the upper shell 7.

The working process of the utility model is as follows:

after the working power supply of the motor is switched on, the rotor 2 drives the rotating shaft 3 to rotate together, and the first output shaft 4 rotates at the rotating speed of the rotating shaft 3. The upper portion of pivot 3 stirs first planet wheel 10 through first sun gear 9, drives first planet carrier 11 and second sun gear 12 and rotates, and second planet wheel 13 is stirred to second sun gear 12, drives second planet carrier 14 and third sun gear 15 and rotates, and third planet wheel 16 is stirred to third sun gear 15, drives third planet carrier 17 and second output shaft 8 and rotates, so after tertiary deceleration, make second output shaft 8 rotate with lower rotational speed, the moment of torsion of second output shaft 8 has been increased.

The rotation speed ratio between the rotating shaft 3 and the second output shaft 8 can be adjusted through the reduction ratio of each planetary gear, so that the second output shaft 8 can obtain ideal torque.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a switch double output speed motor for actuating mechanism that transfer case kept off position, includes the lower casing, installs the rotor in the lower casing, assembles the pivot in the rotor, and the pivot stretches out from the bottom of lower end cover and forms first output shaft, its characterized in that: the gear ring is arranged on the inner wall of the upper shell, the bearing piece is fixed at the top of the lower shell, the bearing piece is provided with a connecting arm protruding upwards, the connecting arm is provided with teeth, and the teeth are assembled on the gear ring;

2. The dual output speed motor for the actuator for shifting the transfer case gears of claim 1 further comprising: the bearing piece is provided with more than two pin shafts, and the pin shafts are connected in the upper shell in a pin mode.

3. The dual output speed motor for the actuator for shifting the transfer case gears of claim 2 wherein: the pin shafts are uniformly distributed along the circumferential direction of the bearing piece.

4. The dual output speed motor for the actuator for shifting the gears of the transfer case according to any one of claims 1 to 3, characterized in that: a second planetary gear is installed between the first planetary gear and the second output shaft and comprises a second sun gear and a second planet carrier, the second sun gear is fixed on the first planet carrier and is coaxially arranged with the rotating shaft, more than three second planetary gears are fixed on the second planet carrier and are uniformly distributed along the circumferential direction of the second sun gear, the inner sides of the second planetary gears are meshed with the second sun gear, the outer sides of the second planetary gears are meshed with the gear ring, and the second output shaft is connected with the second planet carrier.

5. The dual output speed motor for the actuator for shifting the transfer case gears of claim 4 wherein: and a third planetary gear is arranged between the second planetary gear and the second output shaft and comprises a third sun gear and a third planet carrier, the third sun gear is fixed on the second planet carrier and coaxially arranged with the rotating shaft, the third planet carrier is fixedly provided with more than three third planetary gears, the more than three third planetary gears are uniformly distributed along the circumferential direction of the third sun gear, the inner side of each third planetary gear is meshed with the third sun gear, the outer side of each third planetary gear is meshed with the gear ring, and the second output shaft is arranged on the third planet carrier.

6. The dual output speed motor for the actuator for shifting the transfer case gears of claim 5 wherein: and a bearing is assembled between the second output shaft and the upper shell.