Dual-power mixed fuel internal combustion electric drive tractor

Abstract

The utility model belongs to the technical field of rail transport vehicles, and provides a dual-power mixed fuel internal combustion electric drive tractor which comprises a frame, a three-axle bogie I and a three-axle bogie II are arranged on the lower portions of the two ends of the frame respectively, and a traction motor I and a traction motor II are symmetrically arranged on the lower portion of the frame and provide power for the three-axle bogie I and the three-axle bogie II respectively. A machine room I, a heat dissipation chamber, a machine room II and an equipment room are sequentially arranged on the upper portion of the frame, and a power source composed of a methanol diesel engine and a generator is arranged in each of the machine room I and the machine room II. A methanol fuel tank is arranged in the heat dissipation chamber, a rectifying device is arranged in the equipment room, a diesel tank is arranged in the middle of the lower portion of the frame, a methanol diesel engine drives a generator to operate, and alternating current generated by the generator is supplied to the two traction motors after being integrated through the rectifying device. According to the utility model, the diesel locomotive consisting of two sets of identical power and transmission systems is adopted, and the methanol diesel engine is adopted, so that the use cost is reduced, and the emission of carbon dioxide is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of rail transport vehicle technology, specifically relating to a dual-power hybrid fuel internal combustion electric drive tractor, which is a new type of dual-power hybrid fuel internal combustion electric drive tractor used for traction operations in railway stations, industrial and mining enterprises, ports, etc. Background Technology

[0002] Currently, most diesel locomotives used in shunting and short-distance transportation in domestic industrial and mining enterprises, ports, and marshalling yards are single-power traction locomotives. During operation, the tonnage to be hauled varies, resulting in energy waste when hauling small tonnage vehicles and insufficient traction capacity when hauling large tonnage vehicles. Therefore, there is an urgent need to design a dual-power hybrid fuel diesel-electric traction locomotive to solve these problems. This design consists of two identical power and transmission systems in the diesel locomotive, using methanol diesel engines to reduce operating costs and carbon dioxide emissions. The running gear is driven by a single traction motor that drives three axle gearboxes on the bogie, further reducing manufacturing costs. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a dual-power hybrid fuel internal combustion electric transmission tractor. This utility model aims to solve the problems existing in the prior art by designing a dual-power hybrid fuel internal combustion electric transmission tractor. It adopts two completely identical power and transmission systems to form an internal combustion locomotive and uses a methanol diesel engine, which reduces the operating cost and carbon dioxide emissions.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A dual-power hybrid fuel internal combustion electric tractor includes a frame, with a three-axle bogie I and a three-axle bogie II respectively provided at the lower ends of the frame. Traction motor I and traction motor II are symmetrically arranged on both sides of the lower part of the frame, and the traction motor I and traction motor II provide power to the three-axle bogie I and the three-axle bogie II respectively.

[0006] The upper part of the vehicle frame is provided with machine room I, heat dissipation chamber, machine room II, and equipment room in sequence. Machine room I and machine room II are respectively equipped with a power source consisting of a methanol diesel engine and a generator. The heat dissipation chamber is equipped with a methanol fuel tank. The equipment room is equipped with a rectifier. The lower part of the vehicle frame is equipped with a diesel tank. The diesel tank and the methanol fuel tank provide fuel for the methanol diesel engine. The methanol diesel engine drives the generator. The AC power generated by the generator is integrated by the rectifier and supplied to two traction motors.

[0007] Further defining the above scheme, the output of the methanol-diesel engine is connected to the generator input via a flexible coupling, and the ECUs of the two methanol-diesel engines are connected in parallel to the operating system in the cab.

[0008] Further defining the above scheme, the heat dissipation chamber is equipped with two top-mounted V-shaped radiators for cooling two methanol diesel engines. Below the two V-shaped radiators are methanol fuel tanks, methanol fuel supply systems, and ventilation fans, which provide cooling air to the traction motors.

[0009] Further specifying the above scheme, both traction motor I and traction motor II transmit power to three-axle bogie I and three-axle bogie II via drive shaft I;

[0010] The three-axle bogie I and the three-axle bogie II have the same structure; the three-axle bogie II includes three wheelset axles and each wheelset axle is provided with an axle gearbox, the traction motor II is connected to the axle gearbox through the drive shaft I, and the three axle gearboxes on the three-axle bogie II are connected to each other through the drive shaft II to realize the transmission of power.

[0011] Further defining the above scheme, the rectifier in the equipment room includes a rectifier control cabinet, which is a modular standardized design and contains an inverter, a rectifier, and a control system; the equipment room is equipped with a cooling control cabinet responsible for cooling each module of the rectifier control cabinet; and the equipment room contains valves and an air dryer for the air system.

[0012] Further defining the above scheme, the upper part of the vehicle frame also includes a driver's cab and a machine room III, where two screw air compressors are installed to provide air supply for the vehicle's air system.

[0013] Further defining the above scheme, the lower part of the frame is equipped with multiple air bags, a battery box and an air conditioning unit, and both ends of the frame are equipped with hooks.

[0014] Advantages of this utility model compared to the prior art:

[0015] 1. This solution uses a methanol-diesel engine to drive the generator, which has low fuel costs, reduces operating costs, and reduces carbon dioxide emissions; one traction motor in the running gear drives three axle gearboxes on the bogie, reducing the number of traction motors and lowering manufacturing costs.

[0016] 2. This scheme features a dual-power hybrid fuel diesel-electric six-axle tractor, consisting of two identical power and transmission systems. Its characteristics include reliable operation, with one locomotive in use and one on standby. It has low-speed constant-speed traction capability. When traction of large-tonnage trains, it operates with both locomotives; when empty or tractioning smaller tonnage trains, it operates with a single locomotive. Compared to diesel locomotives of the same power, it is energy-saving and environmentally friendly, reducing engine emissions and saving fuel. It significantly lowers operating costs and is suitable for industrial and mining enterprises and logistics at stations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the power system and transmission structure of this utility model. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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.

[0021] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0022] Please see Figure 1-2 The embodiments of this utility model are described in detail below.

[0023] Example: See Figure 1As shown, a dual-power hybrid fuel internal combustion electric tractor includes a frame 1. The lower parts of both ends of the frame 1 are respectively provided with a three-axle bogie I2 and a three-axle bogie II17. Traction motor I5 and traction motor II11 are symmetrically arranged on both sides of the middle of the lower part of the frame 1. The traction motor I5 and traction motor II11 provide power to the three-axle bogie I2 and the three-axle bogie II17, respectively.

[0024] The upper part of the vehicle frame 1 is provided with machine room I 3, heat dissipation chamber 4, machine room II 7, and equipment room 13 in sequence. Machine room I 3 and machine room II 7 are respectively provided with a power source consisting of methanol diesel engine 3-1 and generator 3-3. The heat dissipation chamber 4 is provided with methanol fuel tank 4-2. The equipment room 13 is provided with rectifier. The lower middle part of the vehicle frame 1 is provided with diesel tank 8. The diesel tank 8 and methanol fuel tank 4-2 provide fuel for methanol diesel engine 3-1. Methanol diesel engine 3-1 drives generator 3-3. The AC power generated by generator 3-3 is rectified and integrated by AC-DC-AC to supply two traction motors.

[0025] In one specific implementation: See Figure 2 As shown, the output of the methanol diesel engine 3-1 is connected to the input of the generator 3-3 via a flexible coupling 3-2, and the ECUs of the two methanol diesel engines 3-1 are connected in parallel to the operating system of the cab 14.

[0026] In one specific implementation: See Figure 2 As shown, the heat dissipation chamber 4 is equipped with two top-mounted V-shaped radiators 4-1, which are used to dissipate heat from the two methanol diesel engines 3-1. Below the two V-shaped radiators 4-1 are methanol fuel tanks 4-2, methanol fuel supply systems 4-3, and ventilators 4-4. The ventilators 4-4 provide cooling air for the traction motor.

[0027] In one specific implementation: See Figure 2 As shown, both traction motor I5 and traction motor II11 transmit power to three-axle bogie I2 and three-axle bogie II17 via drive shaft I12;

[0028] The three-axle bogie I2 and the three-axle bogie II17 have the same structure. The three-axle bogie II17 includes three wheelset axles and each wheelset axle is provided with an axle gearbox 17-1. The traction motor II11 is connected to the axle gearbox 17-1 through the drive shaft I12 to transmit power to the axle gearbox 17-1. The three axle gearboxes 17-1 on the three-axle bogie II17 are connected to each other through the drive shaft II17-3 to realize the transmission of power, and then the power is transmitted to the wheelset 17-2 to drive the vehicle to move.

[0029] In one specific implementation: See Figure 2 As shown, the rectifier in the equipment room 13 includes a rectifier control cabinet 13-1, which is a modular standardized design and contains an inverter, a rectifier, and a control system. The equipment room 13 is equipped with a cooling control cabinet 13-2, which is responsible for cooling each module of the rectifier control cabinet 13-1. The equipment room 13 also contains valves 13-4 and an air dryer 13-3 for the air system.

[0030] In one specific implementation: See Figure 1 As shown, the upper part of the frame 1 also has a cab 14, and a machine room Ⅲ 15 is provided next to the cab 14. The machine room Ⅲ 15 is equipped with two screw air compressors 15-1 to provide air source for the vehicle's air system. The two units can work together alone or together as needed for the vehicle, and one is in use and the other is on standby, which increases vehicle safety.

[0031] In one specific implementation: See Figure 1 As shown, the lower part of the frame 1 is equipped with multiple air blowers 6, battery boxes 9 and air conditioning units 10, and both ends of the frame 1 are equipped with hooks 16.

[0032] This utility model adopts a three-axle bogie with six-axle drive and uses a methanol diesel engine, reducing operating costs. Two traction motors each drive three gearboxes on one bogie, eliminating the need for separate traction motors and further reducing manufacturing costs. Two identical power transmission systems are used; when hauling heavy-duty trains, a dual-unit operation is employed, while when hauling empty cars or smaller tonnage trains, a single-unit operation is used. Compared to diesel locomotives of the same power, this is energy-efficient and environmentally friendly, reducing engine emissions and saving one-third of fuel, significantly lowering operating costs. It is suitable for freight transport in industrial and mining enterprises and railway stations.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dual-power hybrid fuel internal combustion electric drive tractor, comprising a frame (1), characterized in that: The lower part of both ends of the frame (1) is provided with a three-axle bogie I (2) and a three-axle bogie II (17), respectively. Traction motor I (5) and traction motor II (11) are arranged on the lower part of the frame (1) to provide power to the three-axle bogie I (2) and the three-axle bogie II (17), respectively. The upper part of the frame (1) is provided with machine room I (3), heat dissipation chamber (4), machine room II (7) and equipment room (13) in sequence. The machine room I (3) and machine room II (7) are respectively provided with a power source consisting of a methanol diesel engine (3-1) and a generator (3-3). The lower part of the frame (1) is provided with a diesel tank (8). The heat dissipation chamber (4) is provided with a methanol fuel tank (4-2). The equipment room (13) is provided with a rectifier. The diesel tank (8) and methanol fuel tank (4-2) provide fuel for the methanol diesel engine (3-1). The methanol diesel engine (3-1) drives the generator (3-3) to run. The AC power generated by the generator (3-3) is integrated by the rectifier and supplied to two traction motors.

2. The dual-power hybrid fuel internal combustion electric drive tractor according to claim 1, characterized in that: The output of the methanol diesel engine (3-1) is connected to the input of the generator (3-3) via a flexible coupling (3-2), and the ECUs of the two methanol diesel engines (3-1) are connected in parallel to the operating system of the cab (14).

3. The dual-power hybrid fuel internal combustion electric drive tractor according to claim 1, characterized in that: The heat dissipation chamber (4) is equipped with two top-mounted V-shaped radiators (4-1) for cooling two methanol diesel engines (3-1). The two V-shaped radiators (4-1) are equipped with a methanol fuel tank (4-2), a methanol fuel supply system (4-3), and a ventilator (4-4). The ventilator (4-4) provides cooling air for the traction motor.

4. The dual-power hybrid fuel internal combustion electric drive tractor according to claim 1, characterized in that: The traction motor I (5) and traction motor II (11) transmit power to the three-axle bogie I (2) and the three-axle bogie II (17) through the drive shaft I (12). The three-axle bogie I (2) and the three-axle bogie II (17) have the same structure; the three-axle bogie II (17) includes three wheelset axles and each wheelset axle is provided with an axle gearbox (17-1); the traction motor II (11) is connected to the axle gearbox (17-1) through the drive shaft I (12); the three axle gearboxes (17-1) on the three-axle bogie II (17) are connected to each other through the drive shaft II (17-3) to realize the transmission of power.

5. The dual-power hybrid fuel internal combustion electric drive tractor according to claim 1, characterized in that: The rectifier in the equipment room (13) includes a rectifier control cabinet (13-1), which is a modular standardized design and contains an inverter, a rectifier and a control system. The equipment room (13) is equipped with a cooling control cabinet (13-2) which is responsible for cooling each module of the rectifier control cabinet (13-1). The equipment room (13) is equipped with valves (13-4) and an air dryer (13-3) for the air system.

6. The dual-power hybrid fuel internal combustion electric drive tractor according to claim 1, characterized in that: The upper part of the frame (1) also includes a driver's cab (14) and a machine room Ⅲ (15), where two screw air compressors (15-1) are installed to provide air source for the vehicle's air system.

7. The dual-power hybrid fuel internal combustion electric drive tractor according to claim 1, characterized in that: The lower part of the frame (1) is equipped with multiple air bags (6), battery boxes (9) and air conditioning units (10), and both ends of the frame (1) are provided with hooks (16).

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