CN212022894U

CN212022894U - Transmission device of electric tricycle

Info

Publication number: CN212022894U
Application number: CN201922279927.4U
Authority: CN
Inventors: 周士清
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-11-27
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a transmission device of an electric tricycle, which comprises a motor, a transmission assembly and a clutch assembly, wherein the clutch assembly drives a power output shaft to be in transmission fit with the transmission assembly, a fast gear set and a slow gear set are respectively connected to the power output shaft through ratchets, and the transmission assembly ensures that a group of gear sets are in a meshing state through the action of a shifting fork; the quick gear set comprises a first primary gear in transmission connection with the motor and a first secondary gear fixed on the power output shaft, and the first primary gear is meshed with the first secondary gear; the slow gear set comprises a second primary gear and a second secondary gear fixed on the power output shaft, the second primary gear is meshed with the second secondary gear, the power output shaft is a hollow shaft, a push rod is arranged in a shaft hole of the power output shaft, top plates are arranged at two ends of the push rod, and the top plates drive a ratchet wheel to be in transmission fit with the fast gear set and the slow gear set respectively. Has the characteristics of simple structure and convenient operation.

Description

Transmission device of electric tricycle

Technical Field

The utility model relates to an electric tricycle's transmission belongs to the transportation vehicles field.

Background

The utility model discloses a transmission of small-size electric vehicle.

At present, the transmission mode of the existing transmission device of the electric tricycle is complex in structure, so that the manufacturing cost is high, the probability of subsequent problems caused by the complex structure is increased, and the maintenance is very troublesome.

Disclosure of Invention

To the above problem, the utility model provides a simple structure, convenient operation's electric tricycle's transmission.

In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme: the utility model provides an electric tricycle's transmission, includes motor, derailleur assembly and clutch assembly transmission cooperation, clutch assembly drive power output shaft and derailleur assembly transmission cooperation, and the derailleur assembly is connected with the axletree transmission, and its innovation point lies in: the clutch assembly comprises a fast gear set and a slow gear set, the fast gear set and the slow gear set are respectively connected to the power output shaft through ratchet wheels, and the clutch assembly ensures that one gear set is in a meshing state under the action of a shifting fork; the quick gear set comprises a first primary gear in transmission connection with the motor and a first secondary gear fixed on the power output shaft, and the first primary gear is meshed with the first secondary gear; the slow gear set comprises a second primary gear and a second secondary gear fixed on the power output shaft, the second primary gear is meshed with the second secondary gear, the power output shaft is a hollow shaft, a push rod is arranged in a shaft hole of the power output shaft, top plates are arranged at two ends of the push rod, and the top plates drive a ratchet wheel to be in transmission fit with the fast gear set and the slow gear set respectively.

And one side of the ratchet wheel is also connected with a return spring.

The ejector pin is two sections, and the side surface of the ejector pin is provided with a ball.

And the power output shaft is also connected with a reversing device.

The first primary gear and the second primary gear are fixedly arranged on the shaft.

One end of the ejector rod is arranged in the shaft hole and is connected with a spring, and the other end of the ejector rod is abutted to the shifting fork.

The invention has the beneficial effects that:

firstly, the transmission is carried out in a meshed state through a group of gear sets, the power is transmitted, the structure is simple, and the transmission efficiency is high;

and secondly, the engagement of the high-speed gear set and the low-speed gear set is controlled through the ratchet, the switching is convenient, the gear shifting is realized through the shifting fork, and the operation of a driver is facilitated.

The utility model discloses an electric tricycle's transmission when using, only need dial through the driver and draw the shift fork just can realize speed governing, the utility model discloses a back is realized to the structure, its simple structure, and convenient operation is obvious.

Drawings

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

Detailed Description

The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not limited to the present invention.

As shown in fig. 1, a transmission device of an electric tricycle includes a motor 1, a transmission assembly 2 and a clutch assembly 3, the transmission assembly 2 is in transmission fit with the clutch assembly 3, the clutch assembly 3 drives a power output shaft 4 to be in transmission fit with the transmission assembly 2, and the transmission assembly 2 is in transmission connection with a wheel axle 14, and is characterized in that: the clutch assembly 3 comprises a fast gear set 3-1 and a slow gear set 3-2, the fast gear set 3-1 and the slow gear set 3-2 are respectively connected to a power output shaft 4 through a ratchet wheel 5, and a group of gear sets are enabled to be in a meshed state under the action of a shifting fork 6; the fast gear set 3-1 comprises a first primary gear 3-1-1 in transmission connection with the motor 1 and a first secondary gear 3-1-2 fixed on the power output shaft 4, and the first primary gear 3-1-1 is meshed with the first secondary gear 3-1-2; the slow gear set 3-2 comprises a second primary gear 3-2-1 and a second secondary gear 3-2-2 fixed on a power output shaft 4, the second primary gear 3-2-1 is meshed with the second secondary gear 3-2-2, the power output shaft 4 is a hollow shaft, a push rod 7 is arranged in a shaft hole of the power output shaft, two ends of the push rod 7 are provided with top plates 8, and the top plates 8 drive a ratchet wheel 5 to be respectively matched with the fast gear set 3-1 and the slow gear set 3-2 in a transmission mode. The utility model discloses a 7 effect of ejector pin and roof 8 come the back-off and withhold the ratchet 5 of one side, realize the gear engagement, put into gear.

And one side of the ratchet wheel 5 is also connected with a return spring 9. After the gear shifting operation is carried out, the reset spring 9 is used for resetting, one gear of the reset spring is guaranteed to be engaged all the time, and the other gear is flicked, so that the engagement is guaranteed to be stable.

In order to take into account the movement of the ram 7 within the shaft 4, and the mounting of the ram 7 and top plate 8, the ram 7 is two-piece, with balls 10 mounted on the sides of the ram 7. The balls 10 are arranged, so that the rotation flexibility of the shaft 4 can be ensured, and the friction is reduced.

And the power output shaft 4 is also connected with a reversing device 11. The reversing device adopted by the utility model is the same as the Chinese patent CN204021184U, and is an improvement on the basis of the patent previously applied by the applicant.

The first primary gear 3-1-1 and the second primary gear 3-2-1 are fixedly arranged on the shaft 12. The structure is simple, and the installation is convenient.

One end of the ejector rod 7 is arranged in the shaft hole and is connected with a spring 13, and the other end of the ejector rod 7 is abutted to the shifting fork 6.

The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings are utilized, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides an electric tricycle's transmission, includes motor (1), derailleur assembly (2) and clutch assembly (3) transmission fit, clutch assembly (3) drive power take-off (4) and derailleur assembly (2) transmission fit, and derailleur assembly (2) are connected with axletree (14) transmission, its characterized in that: the clutch assembly (3) comprises a fast gear set (3-1) and a slow gear set (3-2), the fast gear set (3-1) and the slow gear set (3-2) are respectively connected to the power output shaft (4) through a ratchet wheel (5), and a group of gear sets are enabled to be in a meshed state under the action of a shifting fork (6); the fast gear set (3-1) comprises a first primary gear (3-1-1) in transmission connection with the motor (1) and a first secondary gear (3-1-2) fixed on the power output shaft (4), and the first primary gear (3-1-1) is meshed with the first secondary gear (3-1-2); the slow gear set (3-2) comprises a second primary gear (3-2-1) and a second secondary gear (3-2-2) fixed on a power output shaft (4), the second primary gear (3-2-1) is meshed with the second secondary gear (3-2-2), the power output shaft (4) is a hollow shaft, a push rod (7) is arranged in a shaft hole of the power output shaft, top plates (8) are arranged at two ends of the push rod (7), and the top plates (8) drive a ratchet wheel (5) to be in transmission fit with the fast gear set (3-1) and the slow gear set (3-2) respectively.

2. The transmission of an electro-tricycle according to claim 1, characterised in that a return spring (9) is connected to each side of the ratchet wheel (5).

3. The transmission of an electro-tricycle as claimed in claim 1, characterised in that the stem (7) is two-section, and the side of the stem (7) is provided with balls (10).

4. The transmission of an electro-tricycle according to claim 1, characterised in that a reverse device (11) is also connected to the power take-off shaft (4).

5. The transmission of an electro-tricycle according to claim 1, characterised in that the first primary gear (3-1-1) and the second primary gear (3-2-1) are fixedly mounted on a shaft (12).

6. The transmission of an electro-tricycle according to claim 1, characterised in that one end of the push rod (7) is in the axle hole and is connected with a spring (13), and the other end of the push rod (7) is against the shift fork (6).