CN210760224U

CN210760224U - Energy-saving noise-reducing power device of electric vehicle

Info

Publication number: CN210760224U
Application number: CN201921735782.8U
Authority: CN
Inventors: 刘身谦; 黄宁华; 徐宇; 邱丽红
Original assignee: Shenzhen Wanweibo New Energy Technology Co ltd
Current assignee: Shenzhen Wanweibo New Energy Technology Co ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-16
Anticipated expiration: 2029-10-16

Abstract

The utility model discloses an energy-saving noise-reducing power device of an electric vehicle, which comprises a motor and a gearbox connected to the lower end of the motor, wherein the middle part of the motor is provided with a motor shaft, and the lower end of the motor shaft is provided with small bevel gears; the gearbox includes the casing and runs through the output shaft that sets up in the casing, and the bearing is passed through to the one end of output shaft, and the other end passes through roller bearing and supports, is equipped with big bevel gear and fixed cover on the output shaft, fixedly connected with buffer spring between big bevel gear, the fixed cover, and little bevel gear, big bevel gear mesh are connected the back and are passed through spring soft connection to the output shaft. The utility model discloses a power device cushions the drunkenness that produces because of the rotational speed change that factors such as road, automatically controlled and driving lead to through setting up buffer spring to reach the purpose of making an uproar of falling, and improved the stationarity of vehicle and driven and experienced, buffer spring will absorb partial mechanical shock's shock wave energy simultaneously, thereby reduced the unnecessary of the energy and consumed, reach the purpose of energy-conservation and noise reduction.

Description

Energy-saving noise-reducing power device of electric vehicle

Technical Field

The utility model relates to a power device technical field, specific theory relates to an energy-conserving power device of making an uproar that falls of electric motor car.

Background

The electric vehicle power device converts electric energy into mechanical energy to drive a vehicle body to move forward or backward, but when a motor accelerates or operates under a complex working condition caused by driving, roads, electric control and other factors, the noise of blocking can be generated in a gearbox, the driving experience is seriously influenced, and meanwhile, when mechanical transmission is performed in the gearbox, the phenomenon of mechanical impact can be generated frequently, and the mechanical impact causes consumption of part of energy and reduces the stability of the vehicle.

SUMMERY OF THE UTILITY MODEL

To the deficiency among the prior art, the to-be-solved technical problem of the utility model lies in providing an energy-conserving power device of making an uproar that falls of electric motor car.

In order to solve the technical problem, the utility model discloses a following scheme realizes: an energy-saving noise-reducing power device of an electric vehicle comprises a motor and a gearbox connected to the lower end of the motor, wherein a motor shaft is arranged in the middle of the motor, and small bevel gears are arranged at the lower end of the motor shaft; the gearbox includes the casing and runs through the setting and is in output shaft in the casing, the one end of output shaft passes through the bearing and supports, and the other end passes through roller bearing and supports, be equipped with big bevel gear and fixed cover on the output shaft, fixedly connected with buffer spring between big bevel gear, the fixed cover, little bevel gear, big bevel gear meshing connection, power are the middle corner installation of putting.

Furthermore, the small bevel gear and the large bevel gear are both conical bevel gears.

Further, the motor shaft and the output shaft are in a vertical relation.

Furthermore, one end of the output shaft is arranged in the shell, and the other end of the output shaft penetrates through the shell to be exposed outside.

Furthermore, a groove is formed in one end, close to the buffer spring, of the large bevel gear, and the buffer spring abuts against the groove.

Furthermore, the motor is in a barrel shape, and reinforcing guard bars are uniformly arranged on the surface of the motor at intervals.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up buffer spring on the output shaft, and buffer spring is fixed through fixed cover and big umbrella tooth, when the brake or when accelerating, power device can appear obvious pause and stop and feel, at this moment, the buffer spring of setting can lock the output shaft, make big umbrella tooth cushion toward the direction of output shaft, thereby reach and fall the purpose of making an uproar, and the stationarity of vehicle has been improved, mechanical shock can take place during the transmission of big or small umbrella tooth meshing simultaneously, and buffer spring will absorb partial mechanical shock wave energy, thereby the consumption of the energy has been reduced.

Drawings

FIG. 1 is a cross-sectional view of the power plant of the present invention;

FIG. 2 is a perspective view of the power unit of the present invention;

FIG. 3 is an enlarged view of the power unit A of the present invention;

FIG. 4 is a schematic view of a three-dimensional structure of the power plant of the present invention;

FIG. 5 is a schematic view of the power plant of the present invention in an operating state;

in the drawings: 1. the device comprises a motor 11, a motor shaft 12, a small bevel gear 2, a gearbox 21, a shell 22, an output shaft 23, a bearing 24, a roller bearing 25, a large bevel gear 26, a fixed sleeve 27 and a buffer spring.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the scope of the present invention more clearly defined.

Referring to the attached drawings 1-4, the utility model discloses an energy-saving noise-reducing power device of an electric vehicle, which comprises a motor 1 and a gearbox 2 connected to the lower end of the motor 1, wherein a motor shaft 11 is arranged in the middle of the motor 1, and a small bevel gear 12 is arranged at the lower end of the motor shaft 11; the gearbox 2 comprises a shell 21 and an output shaft 22 arranged in the shell 21 in a penetrating mode, one end of the output shaft 22 is supported through a bearing 23, the other end of the output shaft 22 is supported through a roller bearing 24, a large bevel gear 25 and a fixed sleeve 26 are arranged on the output shaft 22, a buffer spring 27 is fixedly connected between the large bevel gear 25 and the fixed sleeve 26, and the small bevel gear 12 and the large bevel gear 25 are connected in a meshed mode.

Specifically, the small bevel gear 12 and the large bevel gear 25 are both conical bevel gears, and the large bevel gear and the small bevel gear drive the output shaft through external meshing connection.

Specifically, motor shaft 11, output shaft 22 are the vertical relation, the utility model discloses power device's motor is installed perpendicularly, and motor shaft 11 sets up with output shaft 22 is perpendicular, makes output shaft 22 at horizontal output power for power arrangement space is nimble, conveniently chooses longer motor for use, and the perpendicular installation of motor is still favorable to the heat dissipation.

Specifically, one end of the output shaft 22 is arranged in the housing 21, so that the output shaft 22 can be effectively prevented from being influenced by other components; the other end of the output shaft 22 is exposed through the housing 21, and the end is connected to wheels to drive the electric vehicle.

Specifically, the one end that big bevel gear 25 is close to buffer spring 27 is equipped with the recess, buffer spring 27 conflicts in the recess, when buffer spring 27 sets up in the recess, make buffer spring 27 can the even atress to the cushioning effect of effectual performance spring.

It should be noted that the utility model discloses motor 1 and 2 shells of gearbox are made by aluminum alloy material, and motor 1 is the cask shape, and its surperficial even interval arrangement has the enhancement gib, strengthens the gib and can effectively prevent external striking and damage the motor, and strengthens the even interval distribution of gib, is favorable to the heat dissipation.

Referring to fig. 5, the utility model discloses power device's theory of operation: an external power supply provides electric energy for the motor 1, when a motor shaft 11 of the motor 1 rotates, the small bevel gear 12 drives the large bevel gear 25 to rotate, and the large bevel gear 25 drives the output shaft 22 to rotate, so that power transmission and regulation are realized; when braking or accelerating, because the rotational speed of motor shaft 11 is inconsistent with output shaft 22, lead to the power device to appear obvious pause and frustrate and feel, the big umbrella tooth is to the trend of power transmission direction drunkenness and vibrations, and big umbrella tooth is fixed on output shaft 22 again, this kind of desire to move motionlessly leads to sending out strong sound in the gearbox, at this moment, buffer spring 27 that sets up can lock the output shaft, make big umbrella tooth toward the direction buffering of output shaft, thus reach and fall the purpose of making an uproar, and improved the stationarity and the driving experience of vehicle, buffer spring will absorb some shock wave energy of mechanical shock at the same time, thus reduce the unnecessary consumption of the energy, reach the purpose of energy saving.

The utility model discloses a power device alleviates the pause and pause through buffer spring and frustrates and feel and reduce the noise that mechanical shock produced, but the wide application is on electric motor car and electric tool, this power device's simple structure, and the noise reduction effect is obvious, and the practicality is strong.

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

Claims

1. The utility model provides an energy-conserving power device of making an uproar that falls of electric motor car, includes motor (1) and connects gearbox (2) of motor (1) lower extreme, its characterized in that: a motor shaft (11) is arranged in the middle of the motor (1), and small bevel gears (12) are arranged at the lower end of the motor shaft (11); gearbox (2) include casing (21) and run through the setting and be in output shaft (22) in casing (21), bearing (23) are passed through to the one end of output shaft (22) and are supported, and the other end passes through roller bearing (24) and supports, be equipped with big bevel gear (25) and fixed cover (26) on output shaft (22), fixedly connected with buffer spring (27) between big bevel gear (25), fixed cover (26), little bevel gear (12), big bevel gear (25) meshing connection.

2. The energy-saving and noise-reducing power device of the electric vehicle as claimed in claim 1, wherein: the small bevel gear (12) and the large bevel gear (25) are both conical bevel gears.

3. The energy-saving and noise-reducing power device of the electric vehicle as claimed in claim 1, wherein: the motor shaft (11) and the output shaft (22) are in a vertical relation.

4. The energy-saving and noise-reducing power device of the electric vehicle as claimed in claim 1, wherein: one end of the output shaft (22) is arranged in the shell (21), and the other end of the output shaft penetrates through the shell (21) and is exposed outside.

5. The energy-saving and noise-reducing power device of the electric vehicle as claimed in claim 1, wherein: the big bevel gear (25) is close to the one end of buffer spring (27) and is equipped with the recess, buffer spring (27) are contradicted in the recess.

6. The energy-saving and noise-reducing power device of the electric vehicle as claimed in claim 1, wherein: the motor (1) is in a barrel shape, and reinforcing guard bars are uniformly arranged on the surface of the motor at intervals.