CN215452691U

CN215452691U - Transmission assembly

Info

Publication number: CN215452691U
Application number: CN202121364456.8U
Authority: CN
Inventors: 蒋存汉
Original assignee: Fade Switches Co ltd
Current assignee: Fade Switches Co ltd
Priority date: 2021-06-19
Filing date: 2021-06-19
Publication date: 2022-01-07
Anticipated expiration: 2031-06-19

Abstract

The utility model provides a transmission assembly, which comprises a box body, and a synchronous pulley set and a brushless motor component which are arranged in the box body, wherein the box body comprises an upper cover and a bottom cover, the brushless motor component is arranged at one end of the bottom cover, the upper cover is covered on the bottom cover, the brushless motor component drives the synchronous pulley set to rotate, the synchronous pulley set comprises a gear and a pulley, the gear is an input gear and an output gear respectively, and the input gear and the output gear are in meshing connection through the pulley to realize synchronous rotation. The transmission assembly has the advantages of simple structure, compact space, high transmission efficiency and low noise.

Description

Transmission assembly

Technical Field

The utility model relates to the technical field of baby carriage transmission, in particular to a transmission assembly.

Background

The baby carriage is a large class of children toys, including children's bicycles, children's carts, electro-tricycles, children's electric toy vehicles and the like, wherein a transmission assembly is an important driving and steering component of the baby carriage, but the transmission assembly of the current baby carriage has the following problems:

1. most of the baby carriages adopt a brush motor as a driving source and are driven by the brush motor, so that the noise is high and the experience is poor;

2. the transmission between the gears is mostly adopted in the baby carriage box body and the transmission inside the baby carriage box body, the gears are in meshing transmission, the transmission efficiency is low, the occupied space is large, the whole size of the transmission assembly is large, and the installation is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a transmission assembly which is simple in structure, compact in space, high in transmission efficiency and low in noise.

In order to achieve the purpose, the utility model provides a transmission assembly which comprises a box body, a synchronous pulley set and a driving component, wherein the synchronous pulley set and the driving component are installed in the box body, the driving component drives the synchronous pulley set to rotate, the synchronous pulley set comprises a gear and a belt pulley, the gear is an input gear and an output gear respectively, and the input gear and the output gear are meshed and connected through the belt pulley to achieve synchronous rotation.

Preferably, the driving assembly is a brushless motor assembly, so that noise is reduced.

Preferably, the brushless motor assembly comprises a motor casing, an input shaft, an output assembly and a planetary gear set, the input shaft is fixed at the bottom end of the motor casing, the output assembly is fixed at the top end of the motor casing, and the input shaft and the output assembly are connected through the planetary gear set to achieve synchronous rotation.

Preferably, the planetary gear set comprises a planetary gear carrier, a sun gear and planetary gears, the planetary gear carrier is fixed on the bottom cover, the upper end of the input shaft is connected with the sun gear, the planetary gears are uniformly distributed on the outer side of the sun gear, and the planetary gears are meshed with the sun gear and the planetary gear carrier on the outer side; the rotating speed can be reduced, and the motor speed reduction effect is achieved; meanwhile, the damage of the motor caused by the damage of the gear teeth is reduced.

Preferably, the output assembly comprises an output shaft and an output frame, the output shaft is connected with the input gear, and the sun gear and the planet gear are located in the output frame.

Preferably, a cover plate is provided above the planetary carrier.

Preferably, the box body comprises an upper cover and a bottom cover, the driving assembly is fixed at one end of the bottom cover, and the upper cover covers the bottom cover.

Preferably, the upper portion of the output gear is connected with a plum coupling, the bottom cover is provided with a connecting column for fixing the plum coupling, and the connecting column is provided with a reinforcing rib.

The utility model has the beneficial effects that: the synchronous driving device realizes synchronous driving through the mutual matching action of the brushless motor component, the input gear, the output gear and the belt pulley, has simple structure, reduced gear transmission ratio, high transmission efficiency and compact internal space arrangement, greatly reduces the whole volume, is flexible and light, and is convenient to install; through setting up brushless motor subassembly, including brushless motor and planetary gear, the during operation noise is little, is favorable to slowing down, increase of service life.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic diagram of the exploded structure of fig. 1.

In the figure: 1-box body, 11-upper cover, 12-bottom cover, 2-belt pulley, 3-input gear, 4-output gear, 5-plum coupling, 6-motor shell, 7-input shaft, 8-output component, 9-planetary gear set, 10-cover plate, 81-output shaft, 82-output frame, 91-planetary gear rack, 92-sun gear and 93-three planetary gears.

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 below with reference to the accompanying drawings and examples. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the utility model and not to limit the scope of the utility model. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 and fig. 2, a transmission assembly of this embodiment includes a case 1, a synchronous pulley set and a brushless motor component installed in the case 1, the case 1 includes an upper cover 11 and a bottom cover 12, one end of the bottom cover 12 is provided with the brushless motor component, the upper cover 11 covers the bottom cover 12, the synchronous pulley set 2 includes a gear and a pulley 2, the gear is an input gear 3 and an output gear 4, the brushless motor component drives the input gear 3 to rotate, the pulley 2 connects the input gear 3 and the output gear 4 to realize synchronous rotation, the gear transmission ratio is greatly reduced, the transmission efficiency is high, and a quincunx coupler 5 is connected above the output gear 4;

the brushless motor component comprises a motor shell 6, an input shaft 7, an output component 8 and a planetary gear set 9, wherein the planetary gear set 9 comprises a planetary gear carrier 91, a sun gear 92 and three planetary gears 93, the planetary gear carrier 91 is fixed on a bottom cover 12, and the upper end of the planetary gear carrier is provided with a cover plate 10;

the bottom end of the motor shell 6 is fixed with an input shaft 7, the output end of the input shaft 7 is connected with a sun gear 92, the output assembly 8 comprises an output shaft 81 and an output frame 82, the output shaft 81 is connected with the input gear 3 to realize synchronous rotation, the output frame 82 is uniformly divided into three cavities, three planet gears 93 are uniformly distributed in the output frame 82 and meshed with the sun gear 92 and also meshed with a planet gear carrier 91 on the outer side to realize synchronous rotation of the output assembly 8 and the planet gear set 9, and the output assembly 8 is connected with the input gear 3 to realize synchronous rotation.

In the working process of the utility model, the brushless motor is started, and the input shaft 7 is driven by the planetary gear set 9 to realize the synchronous rotation of the output component 8, the input gear 3, the belt pulley 2 and the output gear 3; simple structure, compact space and high transmission efficiency.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The transmission assembly, its characterized in that: including the box body, install synchronous pulley group and the drive assembly in the box body, drive assembly drive synchronous pulley group rotates, synchronous pulley group includes gear and belt pulley, and the gear is input gear and output gear respectively, and input gear and output gear pass through the belt pulley meshing connection, realize synchronous rotation.

2. The drive assembly of claim 1, wherein: the driving assembly is a brushless motor assembly.

3. The drive assembly of claim 2, wherein: the brushless motor assembly comprises a motor shell, an input shaft, an output assembly and a planetary gear set, wherein the input shaft is fixed at the bottom end of the motor shell, the output assembly is fixed at the top end of the motor shell, and the input shaft and the output assembly are connected through the planetary gear set to achieve synchronous rotation.

4. The drive assembly of claim 3, wherein: the planetary gear set comprises a planetary gear carrier, a sun gear and planetary gears, the planetary gear carrier is fixed on the bottom cover, the upper end of the input shaft is connected with the sun gear, the planetary gears are uniformly distributed on the outer side of the sun gear, and the planetary gears are meshed with the sun gear and the planetary gear carrier on the outer side.

5. The drive assembly of claim 4, wherein: the output assembly comprises an output shaft and an output frame, the output shaft is connected with the input gear, and the sun gear and the planet gear are located in the output frame.

6. The drive assembly of claim 4, wherein: and a cover plate is arranged above the planet gear carrier.

7. The drive assembly of any of claims 1-6, further characterized by: the box body comprises an upper cover and a bottom cover, the driving assembly is fixed at one end of the bottom cover, and the upper cover covers the bottom cover.

8. The drive assembly of claim 7, wherein: the top of output gear is connected with the plum blossom shaft coupling, be equipped with the spliced pole that is used for fixed plum blossom shaft coupling on the bottom, be equipped with the strengthening rib on the spliced pole.