Hybrid airport fire fighting truck chassis motor belt coupling box device

Abstract

The utility model relates to the field of aircraft fire rescue vehicle chassis, in particular to a hybrid airport fire fighting truck chassis motor belt coupling box device which comprises a chassis, an engine, a driving motor and a gearbox installation support are arranged on the chassis, and the engine is connected with a first gearbox through a full-power power takeoff. The drive motor is connected with the second gearbox, the coupling transfer case is installed on the chassis and located on the side away from the engine and the drive motor, a first clutch and a second clutch are arranged on the coupling transfer case, the first gearbox is connected with the first clutch through a first drive shaft, and the second gearbox is connected with the second clutch through a second drive shaft. The first gearbox is connected with a first clutch through a first driving shaft, the second gearbox is connected with a second clutch through a second driving shaft, and the front driving axle and the rear driving axle are connected through a coupling transfer case. And the rapid acceleration performance of the vehicle is influenced by the reduction of the electrochemical performance of the battery under the extremely low temperature condition.

Description

Technical Field

[0001] This utility model relates to the field of aircraft fire and rescue vehicle chassis, specifically to a hybrid airport fire truck chassis motor with coupling box device. Background Technology

[0002] While current hybrid vehicles compensate for the lack of engine power, they also add a high-voltage power system. The increase in components leads to more potential vehicle failure points. Furthermore, the power battery of the hybrid system is affected by the external ambient temperature. In extremely low temperatures, the electrochemical performance of the battery will decrease, thus affecting the vehicle's acceleration performance.

[0003] At present, a hybrid airport fire truck chassis motor with coupling box device is proposed to solve the problems mentioned in the background technology. Utility Model Content

[0004] The purpose of this utility model is to provide a hybrid airport fire truck chassis motor with coupling box device to solve the problem that although hybrid models at this stage make up for the lack of engine power performance, they also add a high-voltage power system. The increase in components will lead to more vehicle failure points, and the power battery of the hybrid system will be affected by the external ambient temperature. Under extremely low temperature conditions, the electrochemical performance of the battery will decrease, thereby affecting the vehicle's rapid acceleration performance.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A hybrid airport fire truck chassis motor with coupling box device includes a chassis, on which an engine, a drive motor, and a gearbox mounting bracket are mounted. The engine is connected to a first gearbox via a full-power power take-off, and the drive motor is connected to a second gearbox. Both the first and second gearboxes are mounted on the chassis via the gearbox mounting bracket. The device also includes a coupling transfer case, mounted on the chassis and located away from the engine and drive motor. The coupling transfer case has a first clutch and a second clutch. The first gearbox is connected to the first clutch via a first drive shaft, and the second gearbox is connected to the second clutch via a second drive shaft. The front drive axle and the rear drive axle are connected via the coupling transfer case.

[0007] Further defined, the front drive axle includes a front steering drive axle and a front through drive axle, the front steering drive axle and the front through drive axle being connected; the rear drive axle includes a rear steering drive axle and a rear through drive axle, the rear steering drive axle and the rear through drive axle being connected.

[0008] Further specifying, the coupling box is equipped with a first input shaft and a second input shaft. The first input shaft is connected to the first clutch. A first gear is mounted on the first input shaft, and a second gear is mounted on the second input shaft. The first and second gears mesh with a third gear, which is mounted on a first linkage shaft. A fourth and fifth gear are also mounted on the first linkage shaft. A gear selection sleeve is provided between the fourth and fifth gears. The fourth and fifth gears mesh with a sixth and a seventh gear, respectively. The sixth and seventh gears are mounted on a second linkage shaft, both ends of which can be connected to an emergency steering pump. The seventh gear meshes with a planetary gear set, which is mounted on an output shaft. The output shaft is divided into a front output shaft and a rear output shaft. One end of the planetary gear set is connected to the front through-drive axle via the front output shaft, and the other end is connected to the rear through-drive axle via the rear output shaft.

[0009] Further, it also includes a water pump, which is connected to the full-power power take-off, and the engine drives the water pump through the full-power power take-off.

[0010] The advantages of this utility model over the current technology are as follows:

[0011] 1. Equipped with a water pump, which is connected to a full-power power take-off unit. The engine drives the water pump through the full-power power take-off unit, enabling water spraying and firefighting while driving. This solves the problem that traditional vehicles can only perform firefighting while stationary. The power take-off speed can be set independently without affecting the vehicle speed. During the power take-off process, the chassis is independently driven by the motor to achieve vehicle speed control.

[0012] 2. The engine is located at the rear of the chassis. The power from the engine and the hybrid motor is concentrated and transmitted to the transfer case through the coupling transfer case to form a transmission chain to complete the power transmission.

[0013] 3. Using pure electric power for short-distance transfers can save energy and reduce emissions, ensuring that the air environment is not polluted. Attached Figure Description

[0014] Figure 1 This is a partial front view schematic diagram of the present invention;

[0015] Figure 2 This is a partial three-dimensional schematic diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the power chain of this utility model.

[0017] The markings in the diagram correspond to: 1-chassis, 2-engine, 3-drive motor, 4-first gearbox, 5-second gearbox, 6-coupled transfer case, 7-first clutch, 8-second clutch, 9-first input shaft, 10-second input shaft, 11-first linkage shaft, 12-gear selector sleeve, 13-second linkage shaft, 14-planetary gear set, 15-full power take-off, 16-output shaft, first gear 101, second gear 201, third gear 301, fourth gear 302, fifth gear 303, sixth gear 402, and seventh gear 403. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example 1

[0019] like Figures 1-3As shown, a hybrid airport fire truck chassis motor with coupling box device includes a chassis 1. An engine 2, a drive motor 3, and a gearbox mounting bracket are mounted on the chassis 1. The engine 2 is located at the rear of the chassis 1 and is connected to a first gearbox 4 via a full-power power take-off 15. The drive motor 3 is connected to a second gearbox 5. Both the first gearbox 4 and the second gearbox 5 are mounted on the chassis 1 via the gearbox mounting bracket. The device also includes a coupling transfer case 6, which is mounted on the chassis 1 and located on the side away from the engine 2 and drive motor 3. The coupling transfer case 6 is equipped with... A first clutch 7 and a second clutch 8 are provided. A first gearbox 4 is connected to the first clutch 7 via a first drive shaft. A second gearbox 5 is connected to the second clutch 8 via a second drive shaft. The front drive axle and the rear drive axle are connected via a coupling transfer case 6. The front drive axle includes a front steering drive axle and a front through drive axle, which are connected. The rear drive axle includes a rear steering drive axle and a rear through drive axle, which are connected. A first input shaft 9 and a second input shaft 10 are provided in the coupling transfer case 6. The first input shaft 9 is connected to the first clutch. The device is connected to the first input shaft 9, which has a first gear 101 and a second gear 201 on the second input shaft 10. The first gear 101 and the second gear 201 mesh with a third gear 301, which is mounted on the first linkage shaft 11. The first linkage shaft 11 also has a fourth gear 302 and a fifth gear 303. A gear selection sleeve 12 is provided between the fourth gear 302 and the fifth gear 303 for selecting different gears. The fourth gear 302 and the fifth gear 303 are respectively connected to the sixth gear 402 and the seventh gear 403. The sixth gear 402 and the seventh gear 403 are meshed on the second linkage shaft 13. Both ends of the second linkage shaft 13 can be connected to an emergency steering pump. The seventh gear 403 meshes with the planetary gear set 14. The planetary gear set 14 is set on the output shaft 16. The output shaft 16 is divided into a front output shaft and a rear output shaft. One end of the planetary gear set 14 is connected to the front through drive axle through the front output shaft, and the other end is connected to the rear through drive axle through the rear output shaft. The first clutch 7 can disconnect the power output from the engine 1, and the second clutch 8 can disconnect the power output from the drive motor 3.

[0020] When driving at full power, both engine 2 and drive motor 3 start to work, and transmit power to first clutch 7 and second clutch 8 through first gearbox 4 and second gearbox 5. At this time, first clutch 7 is engaged and second clutch 8 is engaged, and the power of engine 2 and drive motor 3 is transmitted to coupling transfer case 6. Through the meshing of gears and planetary gear set 14 in coupling transfer case 6, the power is distributed to the front and rear drive axles.

[0021] In pure electric driving mode, drive motor 3 starts to work. At this time, the first clutch 7 is disengaged and the second clutch 8 is engaged. Drive motor 3 transmits power to the front and rear axles through the first clutch 7 and the coupling transfer case 6. Example 2

[0022] It also includes a water pump, which is connected to a full-power power take-off unit 15. At this time, it is in the working state of fire fighting while driving. In this state, the first clutch 7 is disengaged and the second clutch 8 is engaged. The chassis is driven independently through the first clutch 7, the first gearbox 4 is forced into neutral, and the engine drives the full-power power take-off unit 15 to drive the water pump.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship on the chassis during actual installation. They are only used to facilitate the description of this utility model and simplify the description, and do not indicate or imply that the equipment or components referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The above provides a detailed description of a hybrid airport fire truck chassis motor with coupling box device. The specific embodiments are only used to help understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from it, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A hybrid airport fire truck chassis motor with coupling box device, comprising a chassis (1), characterized in that: An engine (2), a drive motor (3), and a gearbox mounting bracket are provided on the chassis (1). The engine (2) is located at the rear of the chassis (1). The engine (2) is connected to the first gearbox (4) via a full-power power take-off (15). The drive motor (3) is connected to the second gearbox (5). The first gearbox (4) and the second gearbox (5) are both mounted on the chassis (1) via the gearbox mounting bracket. A coupling transfer case (6) is also provided. The coupling transfer case (6) is mounted on the chassis (1) and located on the side away from the engine (2) and the drive motor (3). A first clutch (7) and a second clutch (8) are provided on the coupling transfer case (6). The first gearbox (4) is connected to the first clutch (7) via a first drive shaft. The second gearbox (5) is connected to the second clutch (8) via a second drive shaft. The front drive axle and the rear drive axle are connected via the coupling transfer case.

2. The hybrid airport fire truck chassis motor with coupling box device according to claim 1, characterized in that: The front drive axle includes a front steering drive axle and a front through drive axle, which are connected together. The rear drive axle includes a rear steering drive axle and a rear through drive axle, which are connected together.

3. The hybrid airport fire truck chassis motor with coupling box device according to claim 2, characterized in that: The coupling transfer case (6) is provided with a first input shaft (9) and a second input shaft (10). The first input shaft (9) is connected to the first clutch (7). A first gear (101) is provided on the first input shaft (9), and a second gear (201) is provided on the second input shaft (10). The first gear (101) and the second gear (201) mesh with each other through a third gear (301). The third gear (301) is provided on a first linkage shaft (11). A fourth gear (302) and a fifth gear (303) are also provided on the first linkage shaft (11). A gear selector is provided between the fourth gear (302) and the fifth gear (303). The sliding sleeve (12) is equipped with the fourth gear (302) and the fifth gear (303) respectively meshing with the sixth gear (402) and the seventh gear (403). The sixth gear (402) and the seventh gear (403) are mounted on the second linkage shaft (13). Both ends of the second linkage shaft (13) can be connected to an emergency steering pump. The seventh gear (403) meshes with the planetary gear set (14). The planetary gear set (14) is mounted on the output shaft (16). The output shaft (16) is divided into a front output shaft and a rear output shaft. One end of the planetary gear set (14) is connected to the front through drive axle through the front output shaft, and the other end is connected to the rear through drive axle through the rear output shaft.

4. The hybrid airport fire truck chassis motor with coupling box device according to claim 1, characterized in that: It also includes a water pump, which is connected to the full-power power take-off (15), and the engine (2) drives the water pump through the full-power power take-off (15).

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