CN207388870U - A kind of commercial car power output system - Google Patents

Abstract

The utility model discloses a commercial vehicle power output system, which includes an engine, a generator and a gearbox. The power shaft on the generator forms a power generation rotor and serves as a driving power output shaft. The front-end transmission connection of the generator, the rear end of the power shaft of the generator is connected with the input shaft of the gearbox through the flywheel and clutch that cooperate with each other, the generator provides power for the drive motor, and the drive motor provides power for the bodywork system of the commercial vehicle. The output shaft of the above-mentioned gearbox drives the chassis travel system of the commercial vehicle. The utility model adopts a single engine to provide power for the chassis and the bodywork system of the commercial vehicle respectively, so that the service performance of the whole vehicle is improved.

Description

A commercial vehicle power output system

technical field

The utility model relates to the field of commercial vehicles, in particular to a commercial vehicle power output system.

Background technique

The traditional commercial vehicle engine power output device is: after the engine, a centrifugal clutch is installed between the flywheel and the gearbox to drive the chassis. The power output system has high stability, but it can only support one output, specifically the driving power output in the field of commercial vehicles.

In the power output system of commercial vehicles, it is generally used to set a side power take-off port on the gearbox, but on the one hand, the output power (torque) of the power take-off port is relatively small, and it is still unable to provide the power demand to replace the secondary engine of the dual-engine model. On the other hand, the rotational speed of the side power take-off port has a fixed speed ratio with the gearbox, and has a great influence on the rotational speed of the engine.

Contents of the invention

In order to solve the deficiencies in the prior art, the purpose of the utility model is to provide a commercial vehicle power output system which adopts a single engine to provide power for the whole vehicle and ensures good performance of the vehicle.

In order to achieve the above object, the utility model adopts the following technical solutions:

A commercial vehicle engine power output system, which includes an engine, a generator and a gearbox. The power shaft on the generator forms a power generation rotor and serves as a driving power output shaft. The front end of the output shaft of the engine and the generator power shaft drives connection, the rear end of the power shaft of the generator is connected to the input shaft of the gearbox through a flywheel and a clutch that cooperate with each other, the generator provides power for the drive motor, and the drive motor provides power for the bodywork system of the commercial vehicle, and the gearbox The output shaft drives the chassis travel system of the commercial vehicle.

The clutch is a centrifugal clutch.

The output shaft of the engine is docked with the power shaft of the generator through a flexible connection structure.

The flexible connection structure is a torsional shock absorber.

The utility model adopts the above structure and has the following beneficial effects:

1. A generator is connected in series between the engine and the gearbox, and the generator is used as the second power output source to provide power for the special device.

2. The generator is connected in series between the engine and the gearbox, and the power shaft of the generator is simultaneously used as the rotor of the generator and as the flywheel output shaft of the driving power of the commercial vehicle chassis, thus ensuring the power supply of the chassis driving and the power of the engine. Divided into two, and the two powers are relatively independent.

3. The rear end of the power shaft of the generator is connected to the rear flywheel plus a clutch to control the power on and off of the gearbox, so as to effectively ensure the power of the vehicle chassis and meet the gear switching requirements of normal driving.

4. The engine and generator are docked through a flexible connection structure, which can effectively solve the impact damage to the engine and generator shaft caused by sudden changes in load or engine speed.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail;

Fig. 1 is the schematic diagram of the utility model.

Detailed ways

As shown in Figure 1, the utility model comprises engine 1, generator 2 and gearbox 3, and the power shaft on the generator 2 forms the generating rotor and is used as driving power output shaft, and the output shaft of described engine 1 and generator 2. The front end of the power shaft is connected to the drive shaft. The rear end of the power shaft of the generator 2 is connected to the input shaft of the gearbox 3 through the flywheel 5 and clutch 6 that cooperate with each other. The generator 2 provides power for the drive motor 7, and the drive motor 7 To provide power for the bodywork system of the commercial vehicle, the output shaft of the gearbox 3 drives the chassis travel system of the commercial vehicle.

The clutch 6 is a centrifugal clutch.

As an optimization, the output shaft of the engine 1 is docked with the power shaft of the generator 2 through a flexible connection structure 4 . Wherein, the flexible connection structure 4 is a torsional shock absorber.

A generator 2 is connected in series between the engine 1 and the gearbox 3. The power shaft of the generator 2 is simultaneously used as a rotor for power generation and as a flywheel output shaft for driving power of the chassis, thus ensuring the power supply of the chassis of the commercial vehicle and the engine The power is divided into two, and the two powers are relatively independent.

The torsional shock absorber 4 is arranged between the engine 1 and the generator 2, which can effectively solve the impact damage to the shaft of the engine 1 and the generator 2 when the load or the speed of the engine 1 changes suddenly;

The connection between the generator 2 and the gearbox 3 is the same as the traditional power output device. A flywheel 5 is installed at the rear end of the power shaft of the generator 2, and then the clutch 6 is connected to ensure that the normal driving power of the chassis is not affected, that is, While providing power, normal shifting (clutch) and buffering during braking can be realized.

Claims (4)

1. A commercial vehicle power output system, which includes an engine, a generator and a gearbox, characterized in that: the power shaft on the generator forms a generator rotor and is used as a driving power output shaft, and the output shaft of the engine is connected to the generator The front end of the power shaft is connected to the transmission, and the rear end of the power shaft of the generator is connected to the input shaft of the gearbox through the flywheel and clutch that cooperate with each other. The generator provides power for the drive motor, and the drive motor provides power for the bodywork system of the commercial vehicle , the output shaft of the gearbox drives the chassis travel system of the commercial vehicle. 2. A commercial vehicle power output system according to claim 1, wherein the clutch is a centrifugal clutch. 3. A commercial vehicle power output system according to claim 1, characterized in that: the output shaft of the engine and the power shaft of the generator are connected through a flexible connection structure. 4. The commercial vehicle power output system according to claim 3, wherein the flexible connection structure is a torsional shock absorber.