阅读说明：本技术 一种纯电动汽车用电机的输出法兰 (Output flange of motor for pure electric vehicle ) 是由 张伟夫 侯永坤 苏亮 王偲 于 2019-03-18 设计创作，主要内容包括：本发明涉及一种纯电动汽车用电机的输出法兰,包括从动盘、主动盘总成和弹性连接元件,所述的主动盘总成直接与电机轴通过花键相连,主动盘总成与从动盘之间设有弹性连接元件,弹性连接元件通过铆钉直接与主动盘总成相连,使得传递扭矩时具有缓冲作用,从动盘与传动轴法兰通过螺栓孔用螺栓相连,当电机起动时,电机动力通过主动盘总成传递给弹性连接元件,再通过弹性连接元件传递给从动盘,从而传给传动轴。本发明结构简单,设计合理,增加了扭矩缓冲结构,使得传动系统传递动力更平稳、较小了电机大扭矩起步时的冲击,减小了轮胎磨损,提高了整车的行驶平顺性。(The invention relates to an output flange of a motor for a pure electric vehicle, which comprises a driven disc, a driving disc assembly and an elastic connecting element, wherein the driving disc assembly is directly connected with a motor shaft through a spline, the elastic connecting element is arranged between the driving disc assembly and the driven disc, the elastic connecting element is directly connected with the driving disc assembly through a rivet, so that the driving disc assembly has a buffering effect when torque is transmitted, the driven disc is connected with a transmission shaft flange through a bolt hole through a bolt, when the motor is started, the power of the motor is transmitted to the elastic connecting element through the driving disc assembly and then transmitted to the driven disc through the elastic connecting element, and then is transmitted to a transmission shaft. The invention has simple structure and reasonable design, increases the torque buffer structure, leads the transmission system to transmit power more stably, reduces the impact of the motor during large-torque starting, reduces the abrasion of tires and improves the running smoothness of the whole vehicle.)

1. The utility model provides an output flange of pure electric vehicles motor which characterized in that: including driven plate (1), drive plate assembly (3) and elastic connection component (4), drive plate assembly (3) directly link to each other through spline (5) with the motor shaft, be equipped with elastic connection component (4) between drive plate assembly (3) and driven plate (1), elastic connection component (4) directly link to each other with drive plate assembly (3) through rivet (2) for have the cushioning effect during transmission moment of torsion, driven plate (1) pass through bolt hole (6) with the transmission shaft flange and link to each other with the bolt.

2. An output flange of a motor for a pure electric vehicle according to claim 1, characterized in that: the driving disc assembly (3) comprises a driving disc A (8) and a driving disc B (9), one end of the elastic connecting element (4) is directly connected with the driving disc A (8), and the other end of the elastic connecting element is directly connected with the driving disc B (9); the driving disc B (9) is directly connected with an output shaft of the motor through a spline (5), the driven disc (1) is connected with the driving disc A (8) through a rivet, and the driven disc (1) is provided with a threaded hole (6) connected with the transmission shaft and connected with the transmission shaft through a bolt.

3. An output flange of a motor for a pure electric vehicle according to claim 2, characterized in that: and a connecting cushion block (7) is arranged between the driving disc A (8) and the driven disc (1).

Technical Field

The invention relates to an output flange of a motor for a pure electric vehicle, and belongs to the technical field of new energy vehicles.

Background

The traditional passenger car power system comprises an engine, a clutch, a gearbox, a transmission shaft and a rear drive axle, and the clutch has a torsional vibration damping function, and the torque of the engine is gradually increased, so that the traditional passenger car power system has the advantages that the transmission torque is relatively smooth, the torque is gradually increased from small to large, and the whole transmission system is not greatly influenced; but is different from a direct-drive pure electric bus. The power system of the direct-drive pure electric bus is generally characterized in that a generator is directly connected with a rear drive axle through a transmission shaft, a clutch is not arranged in the middle of the power system, a torsional vibration damping element is not arranged, the output torque ratio of the generator is large when the automobile is started (the maximum torque of the motor is determined to be in a low-speed area by the characteristics of the generator), and unstable torque changes are large when some motors are at low speed, so that vibration noise is easily generated for the transmission system, meanwhile, the impact on the whole transmission system is large due to the large starting torque, the phenomenon of tire slip frequently occurs, and the early wear of tires is accelerated. According to market research data, for a direct-drive pure electric bus, the phenomenon of early wear of a rear tire generally exists, and is particularly obvious on urban buses with frequent braking and frequent starting.

The existing direct-drive pure electric vehicle power system has the following defects:

1. the whole power system is rigid in torque transmission, has no torsional vibration reduction or torque slow increase device, and easily causes the power system to generate vibration noise and other problems when the torque changes greatly;

2. when an automobile is started, the torque of the generator is large, the impact on the whole transmission system is large, particularly, the influence on tires is large, the tires are easy to slip, the early abrasion of the tires is easy to cause, and the service life of the tires is shortened.

The output flanges of the existing generators are as follows: the output shaft of the motor is connected with a flange c through a spline a, the flange c is connected with a transmission shaft through four holes b on the flange by bolts, and the transmission shaft is rigid without any elastic element and buffer device. This leads to the occurrence of both of the above problems.

Disclosure of Invention

The invention aims to: aiming at the problem that the prior art cannot meet the existing requirements, the output flange of the motor for the pure electric vehicle is provided.

The technical scheme adopted by the invention is as follows: the utility model provides an output flange of motor for pure electric vehicles, includes driven plate, driving plate assembly and elastic connection component, driving plate assembly directly pass through the spline with the motor shaft and link to each other, be equipped with elastic connection component between driving plate assembly and the driven plate, elastic connection component passes through rivet (or bolt) and directly links to each other with driving plate assembly for have the cushioning effect during the transmission moment of torsion, driven plate and transmission shaft flange link to each other through four bolt holes with the bolt, when the motor starts, motor power transmits elastic connection component for through driving plate assembly, and the rethread elastic connection component transmits for the driven plate, thereby passes to the transmission shaft.

In the present invention: the driving disc assembly comprises a driving disc A and a driving disc B, one end of the elastic connecting element is directly connected with the driving disc A, and the other end of the elastic connecting element is directly connected with the driving disc B; the driving disk B is directly connected with the output shaft of the motor through a spline, the driven disk is connected with the driving disk A through a rivet (bolt), and the driven disk is provided with a threaded hole connected with the transmission shaft and connected with the transmission shaft through a bolt.

In the present invention: and a connecting cushion block is arranged between the driving disc A and the driven disc.

The invention has the beneficial effects that: the invention has simple structure and reasonable design, increases the torque buffer structure, leads the transmission system to transmit power more stably, reduces the impact of the motor during large-torque starting, reduces the abrasion of tires and improves the running smoothness of the whole vehicle.

Drawings

FIG. 1 is a schematic diagram of the structure of the background art of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic view of portion A-A of FIG. 2;

FIG. 4 is a schematic view of the construction of the driven disk in the present invention;

FIG. 5 is a sectional view showing the connection of the driving disk assembly;

FIG. 6 is a sectional view showing the connection relationship between the elastic connecting member and the driving disk assembly.

In the figure: 1. a driven plate; 2. riveting; 3. a driving disk assembly; 4. an elastic connection element; 5. a spline; 6. bolt holes; 7. connecting the cushion blocks; 8. a driving disk A; 9. and a driving disk B.

Detailed Description

The invention is described in further detail below with reference to the figures and specific embodiments.

As shown in fig. 2-6, an output flange of a motor for a pure electric vehicle includes a driven plate 1, a driving plate assembly 3 and an elastic connection element 4, the driving plate assembly 3 is directly connected with a motor shaft through a spline 5, the elastic connection element 4 is arranged between the driving plate assembly 3 and the driven plate 1, the elastic connection element 4 is directly connected with the driving plate assembly 3 through a rivet (or bolt) 2, so that a buffering effect is achieved when torque is transmitted, and the driven plate 1 is connected with a transmission shaft flange through four bolt holes 6 by bolts. The driving disc assembly 3 comprises a driving disc A8 and a driving disc B9, one end of the elastic connecting element 4 is directly connected with the driving disc A8, and the other end of the elastic connecting element is directly connected with the driving disc B9; the driving disc B9 is directly connected with the output shaft of the motor through a spline 5, the driven disc 1 is connected with the driving disc A8 through a rivet (bolt), and the driven disc 1 is provided with a threaded hole 6 connected with the transmission shaft and is connected with the transmission shaft through a bolt. Because the middle of the driving disk A8 is provided with a bulge, a connecting cushion block 7 is arranged between the driving disk A8 and the driven disk 1 in order to be connected with the driven disk 1 in a plane manner.

When the motor is started, the power of the motor is transmitted to the elastic connecting element 4 through the driving disc assembly 3 and then transmitted to the driven disc 1 through the elastic connecting element 4, so that the power is transmitted to the transmission shaft. In this way, the large torque shock of the entire transmission system is relieved after the torque is damped by the elastic element 4.

The above description is directed to specific embodiments of the present invention, but the present invention is not limited to the above description. Any equivalent modifications and alterations to this technical solution would be considered within the scope of this invention by those skilled in the art. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention.