CN213861878U

CN213861878U - Special chassis for fire truck in series hybrid power plant

Info

Publication number: CN213861878U
Application number: CN202022289609.9U
Authority: CN
Inventors: 王中会; 徐礼平; 陈嵩; 黄绪; 刘朵; 汪义亮; 罗中立
Original assignee: Wuhu Automobile Technology Co ltd
Current assignee: Wuhu Anhang times Automobile Technology Co.,Ltd.
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-08-03
Anticipated expiration: 2030-10-13

Abstract

The utility model relates to the technical field of engine chassis, in particular to a special chassis for a series hybrid power station fire engine, wherein the chassis comprises an engine, a generator, a chassis transmission system and a plurality of driving motors, the generator is electrically connected with a power battery, the chassis transmission system comprises a chassis frame with a rectangular structure and a plurality of driving axles, and the chassis frame is also provided with a water pump motor, the utility model adopts the series hybrid driving of the engine and the driving motors, adopts the front and back driving motor driving, solves the problem of poor starting acceleration performance of the engine, the engine does not participate in the direct driving, and the engine after starting can output power and torque in a fuel economy area by converting into electric energy to participate in the driving of the vehicle, thereby improving the fuel economy of the whole vehicle, reducing the emission, and when the vehicle leaves the garage, the vehicle-mounted power battery supplies power to the driving motors, the engine is not started temporarily, and the problem of waste gas emission of the garage is solved.

Description

Special chassis for fire truck in series hybrid power plant

Technical Field

The utility model relates to an engine chassis technical field specifically is a special chassis of series connection hybrid power station fire engine.

Background

The product is a special chassis for the airport fire truck, and is used for airport fire rescue, at present, the typical special chassis for the airport fire truck is provided with one or two high-horsepower engines, a power distributor is required to be installed by adopting one engine, the engine can drive the vehicle and a fire pump simultaneously, one engine can be used as the vehicle drive and can drive a fire pump by adopting the two engines, the starting acceleration performance is poor, the engine emission influences the environment, and waste gas generated by starting in a parking garage needs to be specially treated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a special chassis of series connection hybrid power station fire engine to solve the problem that proposes among the above-mentioned background art.

The technical scheme of the utility model is that:

the utility model provides a special chassis of series connection hybrid power station fire engine, the chassis is including engine, generator, chassis transmission system and a plurality of driving motor, the generator is connected with the output transmission of engine, and all driving motor all with generator electric connection, the generator still electric connection has power battery, power battery and all driving motor electric connection, chassis transmission system is including the chassis frame and a plurality of and the driving motor transmission complex transaxle of rectangle structure, and all transaxle interval distribution are on the chassis frame, the tip top at the chassis frame is installed to the engine, still be provided with water pump motor on the chassis frame, generator and power battery all with water pump motor electric connection.

Furthermore, all the driving motors are divided into a front driving motor and a rear driving motor, the output end of the front driving motor is in transmission fit with a driving axle far away from the engine through a first gearbox, and the output end of the rear driving motor is in transmission fit with the driving axle near the engine through a second gearbox.

Furthermore, all drive axles far away from the front drive motor are in one-to-one transmission fit through transmission shafts, and the front drive motor and the rear drive motor are both arranged in the middle of the chassis frame.

Further, the output shafts of the front driving motor and the rear driving motor are opposite in axial direction.

Furthermore, the fire pump is installed in the output transmission of water pump motor.

Furthermore, the horsepower of the engine is 500hp-700hp, the rated power of the generator is 200KW-350KW, and the rated power of the driving motor is at least 200 KW.

The utility model discloses an improve and provide a special chassis of series connection hybrid power station fire engine here, compare with prior art, have following improvement and advantage:

one is as follows: the utility model discloses an engine and driving motor series hybrid drive, dual drive motor drive around adopting has solved the relatively poor problem of engine start-up acceleration performance.

The second step is as follows: the utility model discloses the engine does not participate in the direct drive, through turning into the drive that the electric energy participated in the vehicle, and the engine after the start-up can be at fuel economy district output and moment of torsion, has improved whole car fuel economy, has reduced the emission.

And thirdly: the utility model discloses when the vehicle goes out the garage, on-vehicle power battery supplies power for driving motor, and the engine does not start temporarily, has solved garage exhaust emission's problem.

Drawings

The invention is further explained below with reference to the figures and examples:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

description of reference numerals:

the system comprises an engine 1, a generator 2, a power battery 3, a water pump motor 4, a front driving motor 5, a rear driving motor 6, a transmission shaft 7, a chassis transmission system 8, a chassis frame 81 and a drive axle 82.

Detailed Description

The present invention will be described in detail below, and it is apparent that the technical solutions in the embodiments of the present invention are described clearly and completely. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a special chassis of series hybrid power station fire engine through the improvement here, as shown in fig. 1-2, the chassis includes engine 1, generator 2, chassis transmission system 8 and a plurality of driving motor, generator 2 is connected with the output transmission of engine 1, all driving motor all are connected with generator 2 electrical behavior, generator 2 still electrical connection has power battery 3, power battery 3 and all driving motor electrical connection, chassis transmission system 8 includes chassis frame 81 and a plurality of driving bridge 82 with driving motor transmission cooperation of rectangular structure, all driving bridge 82 interval distribution are on chassis frame 81, engine 1 installs the tip top at chassis frame 81, still be provided with water pump motor 4 on chassis frame 81, generator 2 and power battery 3 all with water pump motor 4 electrical connection, the chassis adopts the series hybrid motion of an engine 1 and a driving motor, the engine 1 drives a generator 2 to generate electricity, if the generated electric energy is excessive, one part of the generated electric energy directly participates in the driving of a vehicle and a water pump, and the other part of the generated electric energy is stored in a power battery 3; if the power is insufficient, the power battery 3 supplements energy for driving the chassis.

All driving motor divide into preceding driving motor 5 and back driving motor 6, preceding driving motor 5 output passes through first gearbox and the transaxle 82 transmission fit who keeps away from engine 1, and back driving motor 6 output passes through the second gearbox and the transaxle 82 transmission fit who is close to engine 1, adopts two motor drive around the adoption, has solved the relatively poor problem of engine 1 start-up acceleration performance.

All drive axles 82 far away from the front drive motor 5 are in one-to-one transmission fit through the transmission shafts 7, the front drive motor 5 and the rear drive motor 6 are both installed in the middle of the chassis frame 81, and therefore the quick response of the transmission force of the chassis transmission system 8 can be achieved.

The axial directions of the output shafts of the front driving motor 5 and the rear driving motor 6 are opposite, so that the occupied space of a transmission system is greatly simplified, and the space utilization rate of a chassis is improved.

The fire pump that the output transmission of water pump motor 4 was installed, water pump motor 4 drive fire pump work is beaten the water operation.

The horsepower of the engine 1 is 500hp-700hp, the rated power of the generator 2 is 200KW-350KW, the engine 1 cannot directly drive the chassis, and the rated power of the driving motor is at least 200 KW.

The scheme is that the engine 1, the generator 2, the driving motor and the driving chassis form a series hybrid motion to replace the driving of one engine 1 or two engines 1 commonly adopted in the market at present.

The horsepower of the engine 1 is selected to be 500hp-700hp, and the rated power of the generator 2 is 200kw-350 kw. The engine 1 cannot directly drive the chassis, and only the power battery 3 is charged or the motor is driven by the generator 2.

The scheme needs to install two driving motors for driving the chassis, the rated power of the driving motors is 200kw-350kw, the maximum power is 350kw-500kw, and the driving motors are provided with 4-6 gears of gearboxes.

The scheme needs to install a driving motor for driving the upper fire pump, and the rated power of the motor 4 is 200 and 300 kw.

All the driving motors can be driven by the engine 1 and the generator 2 in combination with the power battery 3, or can be driven by the engine 1 and the generator 2 or the power battery 3 independently.

The working principle is as follows:

acceleration condition: the engine 1, the generator 2 and the power battery 3 are combined to drive the motor and provide energy to drive the chassis to run.

The driving water pumping working condition is as follows: the engine 1 and the generator 2 are responsible for providing energy for the driving motor and driving the chassis to run, meanwhile, the water pump motor 4 is provided with energy for driving the water pump to work, the normal work of the motor is preferentially ensured, and the power battery 3 can determine whether to supply power to the motor or not according to the running power demand condition.

And (3) parking and water pumping working condition: the engine 1 provides energy for the motor through the generator 2 to drive the water pump, and meanwhile, if the power battery 3 is low in electric quantity, the engine 1 charges the power battery 3 through the generator 2.

And (3) common running condition: the engine 1 provides energy for the driving motor through the generator 2 to drive the chassis to run, and meanwhile, if the electric quantity of the power battery 3 is low, the engine 1 charges the power battery 3 through the generator 2.

And (3) ex-warehouse working conditions: at the moment, the power battery 3 completely provides energy for the driving motor to drive the garage to be discharged, and the tail gas emission of the engine 1 in the garage is ensured.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a special chassis of series connection hybrid power station fire engine which characterized in that: the chassis comprises an engine (1), a generator (2), a chassis transmission system (8) and a plurality of driving motors, the generator (2) is in transmission connection with the output end of the engine (1), all the driving motors are electrically connected with the generator (2), the generator (2) is also electrically connected with a power battery (3), the power battery (3) is electrically connected with all the driving motors, the chassis transmission system (8) comprises a chassis frame (81) with a rectangular structure and a plurality of drive axles (82) in transmission fit with the drive motor, all the drive axles (82) are distributed on the chassis frame (81) at intervals, the engine (1) is arranged above the end part of the chassis frame (81), a water pump motor (4) is also arranged on the chassis frame (81), the generator (2) and the power battery (3) are both electrically connected with the water pump motor (4).

2. The chassis special for the fire engine of the series hybrid farm as claimed in claim 1, wherein: all driving motor divide into preceding driving motor (5) and back driving motor (6), preceding driving motor (5) output is through first gearbox and transaxle (82) transmission fit who keeps away from engine (1), and back driving motor (6) output is through second gearbox and transaxle (82) transmission fit who is close to engine (1).

3. The chassis special for the fire engine of the series hybrid farm as claimed in claim 2, wherein: all drive axles (82) far away from the front drive motor (5) are in one-to-one transmission fit through transmission shafts (7), and the front drive motor (5) and the rear drive motor (6) are installed in the middle of the chassis frame (81).

4. The chassis special for the fire engine of the series hybrid farm as claimed in claim 2, wherein: the axial directions of output shafts of the front driving motor (5) and the rear driving motor (6) are opposite.

5. The chassis special for the fire engine of the series hybrid farm as claimed in claim 1, wherein: the output end of the water pump motor (4) is provided with a fire pump in a transmission way.

6. The chassis special for the fire engine of the series hybrid farm as claimed in claim 1, wherein: the horsepower of the engine (1) is 500hp-700hp, the rated power of the generator (2) is 200KW-350KW, and the rated power of the driving motor is at least 200 KW.