New energy locomotive and driving method

Abstract

The application discloses a new energy locomotive, which comprises a main frame, a locomotive compartment body arranged on the top of the main frame, and bogies arranged on the two sides of the bottom of the main frame; gear boxes are arranged on the front and back sides of the bogies; a plurality of frame supporting plates are symmetrically arranged on the two sides of the bogies; the main frame is arranged on the frame supporting plates; pull rods are arranged on the bogies and face the two gear box mounting positions; the gear boxes are mounted on the gear box mounting positions; the gear boxes comprise a lower bottom box body, a middle box body and an upper cover box body which are detachably connected in sequence and are provided with an axle mounting hole, first and second transmission ratio gear shaft holes and a motor mounting hole; a pull rod arm is arranged on the middle box body and is connected with the pull rod; an axle structure is mounted in the axle mounting hole; a motor transmission gear is mounted in the motor mounting hole; the first and second transmission ratio gear shaft holes are respectively provided with a first transmission ratio gear and a second transmission ratio gear which are engaged with each other; an axle gear is engaged with the second transmission ratio gear; and the first transmission ratio gear is engaged with the motor transmission gear.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of locomotive technology, in particular to a new energy locomotive and driving method, which is suitable for GK type locomotive. BACKGROUND

[0002] According to statistics, about 2 / 3 of the annual oil consumption in China is consumed in the field of transportation. The greenhouse gas emissions of transportation tools powered by fossil energy combustion are an important source of atmospheric greenhouse gases, and more than half of the increase in atmospheric greenhouse gases comes from the combustion of fossil fuels. Therefore, controlling the greenhouse gas emissions of transportation tools is an important measure to control carbon emissions.

[0003] Railway traction energy consumption accounts for more than 50% of all energy consumption in rail transit, and realizing low-carbon and carbon-free traction energy is the key link of railway energy saving and emission reduction. At present, the main modes of railway traction energy include diesel and electricity. In countries with relatively low electrification rates, fuel accounts for a higher proportion of traction energy than electricity. Even in countries with relatively high electrification rates, various engineering vehicles, maintenance vehicles, construction vehicles, shunting locomotives and some locomotives for special purposes still use internal combustion engines for traction, resulting in fuel accounting for about half of the total energy consumption. In China, electrified railways have developed rapidly, and by the end of 2019, the electrification rate of China's railways has exceeded 70%. Even so, a large number of internal combustion locomotives are still in service in steel enterprises. These old models are poor in economy, high in energy consumption and polluting, and are difficult to meet the current demand for carbon reduction production. These internal combustion locomotives in steel enterprises cause serious air pollution and a very poor working environment, directly affecting the health of workers. At the same time, a large number of old internal combustion locomotives in steel enterprises will face scrap, and implementing green remanufacturing of internal combustion locomotives not only realizes the recycling of a large number of old internal combustion locomotive equipment resources, but also saves energy and protects the environment, forming a new industry with considerable social and economic benefits. Therefore, promoting green remanufacturing of internal combustion locomotives and using new energy instead of fuel is one of the important ways for steel enterprises to realize clean and low-carbon railway transportation.

[0004] At present, the driving of GK type locomotive is mainly through the universal shaft and axle gear box to transmit the traction power to the wheel set to achieve the traction of the train. In order to reduce the energy consumption and pollution of the locomotive internal combustion engine, a new energy locomotive power system needs to be designed and applied to the locomotive group, which can meet the normal operation of the locomotive and realize the energy reduction and emission reduction of the locomotive group. SUMMARY

[0005] In view of the technical problems in the background art, the present application provides a new energy locomotive and driving method.

[0006] The technical solution of the present application to solve the technical problems is as follows:

[0007] The new energy locomotive comprises a main frame, a locomotive compartment body arranged on the top of the main frame, and bogies arranged on the bottom of the main frame; gear box mounting positions are arranged on the front and rear sides of the bogies, a plurality of frame supporting plates are symmetrically arranged on the two sides of the bogies, and the main frame is arranged on each frame supporting plate; pull rods are arranged on the bogies towards the two gear box mounting positions; gear boxes are arranged on the gear box mounting positions; the gear box comprises a lower bottom box body, a middle box body and an upper cover box body which are sequentially and detachably connected and respectively have an upper opening, an upper and lower opening and a lower opening box body structure; an axle mounting hole and a first transmission ratio gear shaft hole are arranged between the lower bottom box body and the middle box body; a second transmission ratio gear shaft hole and a motor mounting hole are arranged between the middle box body and the upper cover box body; the included angle between the center lines of the axle mounting hole and the first transmission ratio gear shaft hole and the center lines of the second transmission ratio gear shaft hole and the motor mounting hole is an acute angle; the center line of the first transmission ratio gear shaft hole and the second transmission ratio gear shaft hole is perpendicular to the center line of the second transmission ratio gear shaft hole and the motor mounting hole; a pull rod arm is arranged on the middle box body, a pull rod hole is arranged at the top end of the pull rod arm, and the pull rod is connected with the pull rod hole; an axle structure is arranged in the axle mounting hole, and the axle structure comprises an axle, an axle gear and a wheel which are arranged on the axle; a motor transmission gear is arranged in the motor mounting hole through a rotating shaft, and a motor is arranged at the end of the rotating shaft; a first transmission ratio gear and a second transmission ratio gear which are engaged with each other are arranged in the first transmission ratio gear shaft hole and the second transmission ratio gear shaft hole through rotating shafts; the axle gear is engaged and connected with the second transmission ratio gear, and the first transmission ratio gear is engaged and connected with the motor transmission gear.

[0008] Further, the included angle between the center lines of the axle mounting hole and the first transmission ratio gear shaft hole and the center lines of the second transmission ratio gear shaft hole and the motor mounting hole is 25°; and the center line of the axle mounting hole and the first transmission ratio gear shaft hole forms an angle of 10° with the bottom surface of the lower box body.

[0009] Further, the motor is a disc type axial flux motor.

[0010] Further, a power battery is arranged in the locomotive compartment body, and the power battery is connected with each motor.

[0011] Further, a diesel generator is arranged in the locomotive compartment body, and the diesel generator is connected with the power battery and each motor.

[0012] Further, the lower bottom box body comprises an upper open box structure composed of a lower bottom box body bottom plate and a plurality of lower bottom box body side plates, an upper opening of the upper open box structure is provided with a lower bottom box body connecting flange, and a lower half circular plate of an axle hole and a lower half circular plate of a first transmission ratio tooth shaft hole are respectively arranged on the upper part of the lower bottom box body side plates on both sides of the lower bottom box body connecting flange.

[0013] The middle box body comprises an upper and lower open box structure composed of two middle box body side plates, a middle box body first outer side plate and a middle box body second outer side plate between the two middle box body side plates, and a middle box body top plate between one side of the middle box body first outer side plate and the middle box body second outer side plate, a lower connecting flange and an upper connecting flange of the middle box body are respectively arranged on the lower opening and the upper opening of the upper and lower open box structure, a lower half circular plate of an axle hole and a lower half circular plate of a first transmission ratio tooth shaft hole are respectively arranged on the lower part of the two middle box body side plates, a lower half circular plate of a motor mounting hole and a lower half circular plate of a second transmission ratio tooth shaft hole are respectively arranged on the upper part of one of the middle box body side plates and the middle box body top plate, the lower half circular plate of the axle hole and the lower half circular plate of the first transmission ratio tooth shaft hole are connected to the middle box body lower connecting flange at the same time, and the lower half circular plate of the motor mounting hole and the lower half circular plate of the second transmission ratio tooth shaft hole are connected to the middle box body upper connecting flange at the same time.

[0014] The upper cover box body comprises a lower open box structure composed of two upper cover box body side plates and an upper cover box body top plate between the two upper cover box body side plates, a connecting flange of the upper cover box body is arranged on the lower opening of the lower open box structure, a lower half circular plate of a motor mounting hole and a lower half circular plate of a second transmission ratio tooth shaft hole are respectively arranged on the lower part of the two upper cover box body side plates, and the lower half circular plate of the motor mounting hole and the lower half circular plate of the second transmission ratio tooth shaft hole are connected to the connecting flange of the upper cover box body at the same time.

[0015] The lower half circular plate of the axle hole and the upper half circular plate of the axle hole constitute the axle mounting hole, the lower half circular plate of the first transmission ratio tooth shaft hole and the upper half circular plate of the first transmission ratio tooth shaft hole constitute the first transmission ratio tooth shaft hole, the lower half circular plate of the second transmission ratio tooth shaft hole and the upper half circular plate of the second transmission ratio tooth shaft hole constitute the second transmission ratio tooth shaft hole, and the lower half circular plate of the motor mounting hole and the upper half circular plate of the motor mounting hole constitute the motor mounting hole; the lower bottom box body connecting flange is detachably connected to the middle box body lower connecting flange, and the middle box body upper connecting flange is detachably connected to the upper cover box body connecting flange.

[0016] Further, the lower bottom box bottom plate is provided with a lubricating device mounting plate and a plurality of oil drain holes, the lubricating device mounting plate is provided with a lubricating device mounting hole, an oil pan is mounted on the lubricating device mounting plate, a lubricating pump is mounted on the oil pan, the lubricating pump is arranged inside the lower bottom box from the lubricating device mounting hole, and an oil drain screw plug is arranged at the oil drain hole; the lower bottom box side plate of the lower box is provided with a refueling device mounting hole, the outer side of the refueling device mounting hole is provided with a refueling device mounting flange, the refueling device mounting flange is provided with an oil scale flange and an oil scale, the pull rod arm is arranged outside the upper semicircular plate of the axle hole, the upper cover box is provided with an inspection hole, the outer side of the inspection hole is provided with an inspection hole flange, the inspection hole flange is provided with an inspection device, the inspection device comprises an inspection hole gasket and an inspection hole cover arranged in sequence, and the inspection hole cover is provided with a ventilation hole.

[0017] Further, the lower half circular plate of the motor mounting hole and the lower half circular plate of the second transmission ratio gear shaft hole are an integral structure, forming a lower half circular hole connecting part of the middle box; the upper half circular plate of the motor mounting hole and the upper half circular plate of the second transmission ratio gear shaft hole are an integral structure, forming an upper half circular hole connecting part of the upper cover box; the middle part of the lower half circular hole connecting part of the middle box and the upper half circular hole connecting part of the upper cover box is provided with a mounting hole and is detachably connected through a fastener.

[0018] Further, a plurality of rib plates are arranged between the lower half circular plate of the axle hole and the lower half circular plate of the first transmission ratio gear shaft hole and the lower bottom box side plate, between the upper half circular plate of the axle hole and the upper half circular plate of the first transmission ratio gear shaft hole and the middle box side plate, and between the lower half circular hole connecting part of the middle box and the middle box top plate on the same side; the width of the lower half circular plate of the axle hole and the upper half circular plate of the axle hole on one side of the lower bottom box and the middle box is greater than that on the other side.

[0019] The driving method of the new energy locomotive according to the technical scheme comprises the following steps:

[0020] In the power battery energy supply mode, the power battery supplies power to the motors on the gearboxes of each bogie of the locomotive respectively;

[0021] In the diesel generator energy supply mode, the diesel generator outputs power and supplies the power to the motors on the gearboxes of each bogie of the locomotive after alternating treatment;

[0022] In the hybrid power energy supply mode, the power battery and the diesel generator supply power to the motors on the gearboxes of each bogie of the locomotive simultaneously, when the motors do not need to exert maximum power, the excess power of the diesel generator is delivered to the power battery and stored in the power battery;

[0023] In each of the above energy supply modes, the motor drives the motor transmission gear to rotate, the motor transmission shaft drives the second transmission ratio gear meshing therewith to rotate, the second transmission ratio gear drives the first transmission ratio gear meshing therewith to rotate, so that the transmission speed is reduced, the axle gear meshing with the first transmission ratio gear is driven to rotate, and then the axle drives the wheel to rotate, thereby realizing the operation of the locomotive.

[0024] Compared with the prior art, the new energy locomotive and the driving method have the advantages that the new energy locomotive is novel in design and reasonable in structure, the original structure of the main frame and the bogie is basically unchanged, the internal combustion engine is replaced by the motor through the newly designed gear box and the motor, the bogie is effectively driven to move on the track, the recycling of a large number of old internal combustion locomotive equipment resources is realized, energy saving and emission reduction are simultaneously realized, and environmental pollution is reduced; the diesel generator can be arranged and three energy supply modes can be realized, the new energy locomotive is suitable for various loads and special situations, the oil saving effect is remarkable, the fuel consumption during standby is eliminated, the diesel engine works in the high efficiency area, fuel is effectively saved, the auxiliary power consumption of the locomotive is less than that of the traditional shunting locomotive due to the use of the diesel engine with small power, the locomotive power is effectively utilized, the environment of the locomotive is more friendly due to the use of electric energy, the running noise is lower, the service life of the diesel engine is greatly improved due to the use of the three driving modes, the repair and maintenance cost of the diesel engine is greatly reduced, the power battery basically does not need daily maintenance and repair, only simple maintenance work such as voltage balancing needs to be performed periodically, and the use cost is greatly reduced; in addition, the gear box in the application is connected with the lower bottom box body, the middle box body and the upper cover box body in sequence, the axle mounting hole, the first transmission ratio gear shaft hole, the second transmission ratio gear shaft hole and the motor mounting hole are formed by the three box body structures, the gear box body has the advantages of small volume, light weight, low cost, convenient installation and maintenance of the axle, the transmission ratio gear shaft and the motor, and the like, the gear box body is convenient to install and use, and the stability of the gear box body during use is effectively ensured, and the service life of the gear box body is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 FIG. 1 is a front view of the axle gear box body of the disc type axial flux motor locomotive according to the application;

[0026] Figure 2 FIG. 2 is a rear view of the axle gear box body of the disc type axial flux motor locomotive according to the application;

[0027] Figures 3-7 FIG. 3 is a perspective view of the axle gear box body of the disc type axial flux motor locomotive according to the application at different angles;

[0028] Figures 8-9 Structure diagram of different angles of lower bottom box body in the application;

[0029] Figures 10-11 Structure diagram of different angles of middle box body in the application;

[0030] Figures 12-13 Structure diagram of different angles of upper cover box body in the application;

[0031] Figures 14-16 Structure diagram of different angles of gear box in the application;

[0032] Figure 17 Exploded diagram of gear box in the application;

[0033] Figures 18-19 Structure diagram of different angles of bogie in the application;

[0034] Figure 20 Schematic diagram of locomotive in the application;

[0035] Figure 21 Connection diagram of diesel generator, power battery and motor in the application;

[0036] In the figure: 1, lower bottom box; 11, axle hole lower half round plate; 12, first transmission ratio gear shaft hole lower half round plate; 13, lower bottom box bottom plate; 14, lower bottom box side plate; 15, lower bottom box connecting flange; 16, lubricating device mounting plate; 161, oil pan; 162, lubricating pump; 17, lubricating device mounting hole; 18, oil drain hole; 181, oil drain plug; 2, middle box; 21, axle hole upper half round plate; 22, first transmission ratio gear shaft hole upper half round plate; 23, middle box first outer side plate; 24, middle box side plate; 25, middle box lower connecting flange; 26, middle box upper connecting flange; 27, motor mounting hole lower half round plate; 28, second transmission ratio gear shaft hole lower half round plate; 29, middle box lower half round hole connecting part; 210, middle box second outer side plate; 211, middle box top plate; 3, upper cover box; 32, upper cover box side plate; 33, upper cover box top plate; 34, inspection hole; 341, inspection hole flange; 36, upper cover box connecting flange; 37, motor mounting hole upper half round plate; 38, second transmission ratio gear shaft hole upper half round plate; 39, upper cover box upper half round hole connecting part; 4, pull rod arm; 4, pull rod hole; 5, rib plate; 6, oiling device mounting hole; 61, oiling device mounting flange; 62, oil scale flange; 63, oil scale; 7, inspection device; 71, inspection hole cover; 72, inspection hole cover gasket; 73, air vent hole; 8, motor; 9, wheel axle structure; 91, axle; 92, wheel; 101, motor drive gear; 102, second transmission ratio gear; 103, first transmission ratio gear; 104, axle gear; 200, bogie; 201, pull rod; 202, gear box mounting position; 203, frame support plate; 300, locomotive; 301, locomotive carriage body; 302, main frame; 400, diesel generator; 500, power battery. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described in connection with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application. Unless otherwise defined, the technical terms or scientific terms used herein should be understood as the general meaning by those of ordinary skill in the art to which the present application belongs. The "up", "down", "left", "right", "front", "back" and the like used in the patent application description and claims of the present application are only used to represent the relative positional relationship, and when the absolute position of the described object is changed, the relative positional relationship is also changed accordingly; the "connection" or "connection" and the like are not limited to the physical or mechanical connection, but can include the electrical connection, whether direct or indirect. The details of the present application are well known to those skilled in the art.

[0038] Embodiment 1:

[0039] As shown in the drawings, the new energy locomotive of the present application comprises a main frame 302, a locomotive compartment 301 arranged on the top of the main frame 302, and bogies 200 arranged on the bottom of the main frame 302; the bogies 200 are provided with gear box mounting positions 202 on the front and rear sides, respectively, and a plurality of frame supporting plates 203 are symmetrically arranged on the two sides, respectively, and the main frame 302 is arranged on each frame supporting plate 203; pull rods 201 are arranged on the bogies 200 towards the two gear box mounting positions 202, respectively, and gear boxes are mounted on the gear box mounting positions 202, respectively, wherein the gear boxes comprise a lower bottom box 1, a middle box 2 and an upper cover box 3 which are sequentially detachably connected and have an upper opening, an upper and lower opening and a lower opening box structure, respectively; the lower bottom box 1 and the middle box 2 are jointly provided with an axle mounting hole A and a first transmission ratio gear shaft hole B, the middle box 2 and the upper cover box 3 are jointly provided with a second transmission ratio gear shaft hole C and a motor mounting hole D, the included angle between the center lines of the axle mounting hole A and the first transmission ratio gear shaft hole B and the center lines of the second transmission ratio gear shaft hole C and the motor mounting hole D is an acute angle, and the center line of the first transmission ratio gear shaft hole B and the second transmission ratio gear shaft hole C is perpendicular to the center line of the second transmission ratio gear shaft hole C and the motor mounting hole D; a pull rod arm 4 is arranged on the middle box 2, a pull rod hole 41 is arranged at the top end of the pull rod arm 4, and the pull rod 201 is connected with the pull rod hole 41; a wheel shaft structure 9 is mounted in the axle mounting hole A, and the wheel shaft structure 9 comprises an axle 91, an axle gear 104 and a wheel 92 which are arranged on the axle 91, respectively; a motor transmission gear 101 is mounted on the motor mounting hole D through a rotating shaft, an end of the rotating shaft is provided with a motor 8, and the motor 8 can be a disc type axial flux motor; the first transmission ratio gear 103 and the second transmission ratio gear 102 which are in engagement are mounted on the first transmission ratio gear shaft hole B and the second transmission ratio gear shaft hole C through rotating shafts, respectively, the axle gear 104 is in engagement with the second transmission ratio gear 103, and the first transmission ratio gear 102 is in engagement with the motor transmission gear 101.

[0040] Preferably, the included angle between the center lines of the axle mounting hole A and the first transmission ratio gear shaft hole B and the center lines of the second transmission ratio gear shaft hole C and the motor mounting hole D is 25°, and the center line of the axle mounting hole A and the first transmission ratio gear shaft hole B forms an angle of 10° with the bottom surface of the lower bottom box 1.

[0041] The new energy locomotive in the embodiment is installed at a certain angle through the setting of the axle mounting hole A, the first transmission ratio tooth shaft hole B, the second transmission ratio tooth shaft hole C and the motor mounting hole D between the lower bottom box body 1, the middle box body 2 and the upper cover box body 3 on the gear box of each bogie, so that the lower bottom box body 1, the middle box body 2 and the upper cover box body 3 occupy small space, and the space wheel system arrangement structure is adopted between gears in the gear box, the transmission ratio and space requirements are met, the original bogie axle can be installed, the new energy locomotive has the functions of small volume, light weight, high transmission efficiency and convenient installation and maintenance, and the like.

[0042] Embodiment 2

[0043] On the basis of the embodiment 1, the lower bottom box body 1 comprises an upper open box structure composed of a lower bottom box body bottom plate 13 and a plurality of lower bottom box body side plates 14, a lower bottom box body connecting flange 15 is arranged at the upper opening of the upper open box structure, and an axle hole lower semicircular plate 11 and a first transmission ratio tooth shaft hole lower semicircular plate 12 are respectively arranged on the upper part of the lower bottom box body side plates 14 on the two sides of the lower bottom box body connecting flange 15.

[0044] The middle box body 2 comprises an upper and lower open box structure composed of two middle box body side plates 24, a middle box body first outer side plate 23 and a middle box body second outer side plate 210 between the two middle box body side plates 24, and a middle box body top plate 211 between one side of the middle box body first outer side plate 23 and the middle box body second outer side plate 210, a middle box body lower connecting flange 25 and a middle box body upper connecting flange 26 are arranged at the lower opening and the upper opening of the upper and lower open box structure respectively, an axle hole upper semicircular plate 21 and a first transmission ratio tooth shaft hole upper semicircular plate 22 are respectively arranged on the lower part of the two middle box body side plates 24, a motor mounting hole lower semicircular plate 27 and a second transmission ratio tooth shaft hole lower semicircular plate 28 are respectively arranged on the upper part of one of the middle box body side plates 24 and the middle box body top plate 211, the axle hole upper semicircular plate 21 and the first transmission ratio tooth shaft hole upper semicircular plate 22 are connected with the middle box body lower connecting flange 25 simultaneously, and the motor mounting hole lower semicircular plate 27 and the second transmission ratio tooth shaft hole lower semicircular plate 28 are connected with the middle box body upper connecting flange 26 simultaneously.

[0045] The upper cover box 3 comprises a lower opening box structure composed of two upper cover box side plates 32 and an upper cover box top plate 33 between the two upper cover box side plates 32, and the lower opening of the lower opening box structure is provided with an upper cover box connecting flange 36, and the lower part of each of the two upper cover box side plates 32 is correspondingly provided with a motor mounting hole upper semicircular plate 37 and a second transmission ratio gear shaft hole upper semicircular plate 38, and the motor mounting hole upper semicircular plate 37 and the second transmission ratio gear shaft hole upper semicircular plate 38 are connected with the upper cover box connecting flange 36 at the same time;

[0046] Among them, the axle hole lower semicircular plate 11 and the axle hole upper semicircular plate 21 constitute the axle mounting hole A, the first transmission ratio gear shaft hole lower semicircular plate 12 and the first transmission ratio gear shaft hole upper semicircular plate 22 constitute the first transmission ratio gear shaft hole B, the second transmission ratio gear shaft hole lower semicircular plate 28 and the second transmission ratio gear shaft hole upper semicircular plate 38 constitute the second transmission ratio gear shaft hole C, and the motor mounting hole lower semicircular plate 27 and the motor mounting hole upper semicircular plate 37 constitute the motor mounting hole D; the lower bottom box connecting flange 15 is adaptively and detachably connected with the middle box lower connecting flange 25, and the middle box upper connecting flange 26 is adaptively and detachably connected with the upper cover box connecting flange 36.

[0047] Preferably, the lower bottom box bottom plate 13 is provided with a lubricating device mounting plate 16 and a plurality of oil drain holes 18, the lubricating device mounting plate 16 is provided with lubricating device mounting holes 17, the lubricating device mounting plate 16 is provided with an oil pan 161, the oil pan 161 is provided with a lubricating pump 162, the lubricating pump 162 is arranged inside the lower bottom box 1 from the lubricating device mounting holes 17, the lubricating pump 162 can lubricate each gear inside the box, the oil drain holes 18 are provided with oil drain plugs 181 for draining lubricating oil inside the box; the lower bottom box side plate 14 of the lower box 1 is provided with a lubricating device mounting hole 6, the outside of the lubricating device mounting hole 6 is provided with a lubricating device mounting flange 61, the lubricating device mounting flange 61 is provided with an oil scale flange 62 and an oil scale 63, and lubricating oil can flow into the lubricating device mounting hole 6 at this position; the pull rod arm 4 is arranged outside the axle hole upper semicircular plate 21; the upper cover box 1 is provided with an inspection hole 34, the outside of the inspection hole 34 is provided with an inspection hole flange 341, the inspection hole flange 341 is provided with an inspection device 7, the inspection device 7 comprises an inspection hole sealing pad 72 and an inspection hole cover 71 arranged in sequence, the inspection hole cover 71 is provided with an air hole 73, and the inspection hole cover 71 and the air hole 73 can be used for checking the inside of the box, while ensuring that the inside of the box is in communication with the atmosphere.

[0048] Preferably, for the convenience of design and installation, the motor mounting hole lower semicircular plate 27 and the second transmission ratio gear shaft hole lower semicircular plate 28 are integrated structures, constituting a middle box lower semicircular hole connecting part 29; the motor mounting hole upper semicircular plate 37 and the second transmission ratio gear shaft hole upper semicircular plate 38 are integrated structures, constituting an upper cover box upper semicircular hole connecting part 39; the middle of the middle box lower semicircular hole connecting part 29 and the upper cover box upper semicircular hole connecting part 39 correspondingly has a mounting hole and is detachably connected through a fastener.

[0049] Preferably, for the stability of the entire box, the axle hole lower semicircular plate 11 and the first transmission ratio gear shaft hole lower semicircular plate 12 are provided with a plurality of rib plates 5 between the lower bottom box side plate 14, the axle hole upper semicircular plate 21 and the first transmission ratio gear shaft hole upper semicircular plate 22 and the middle box side plate 24, and the middle box lower semicircular hole connecting part 29 and the middle box top plate 211 on the same side; the width of the axle hole lower semicircular plate 11 and the axle hole upper semicircular plate 21 of one side of the lower bottom box 1 and the middle box 2 is greater than that of the other side.

[0050] Preferably, the axle hole lower semicircular plate 11 and the first transmission ratio gear shaft hole lower semicircular plate 12 are cut and bent from a 50mm steel plate, the lower bottom box bottom plate 13 is cut and processed from a 40mm steel plate, the lower bottom box side plate 14 is cut and processed from a 20mm steel plate, the lower bottom box connecting flange 15 is cut and processed from a 60mm steel plate, the lubricating device mounting plate 16 is cut and processed from a 30mm steel plate, and the rib plate 5 is cut and processed from a 30mm steel plate; the axle hole upper semicircular plate 21, the first transmission ratio gear shaft hole upper semicircular plate 22, the motor mounting hole lower semicircular plate 27 and the second transmission ratio gear shaft hole lower semicircular plate 28 constitute the middle box lower semicircular hole connecting part 29 which is cut and processed from a 50mm steel plate, the middle box first outer side plate 23, the middle box side plate 24, the middle box second outer side plate 210 and the middle box top plate 211 are cut and processed from a 30mm steel plate, the pull rod arm 4 is cut and processed from a 60mm steel plate, the middle box lower connecting flange 25 and the middle box upper connecting flange 26 are cut and processed from a 60mm steel plate, the upper cover box side plate 32 and the upper cover box top plate 33 are cut and processed from a 20mm steel plate, the upper cover box connecting flange 36 is cut and processed from a 60mm steel plate, and the motor mounting hole upper semicircular plate 37 and the second transmission ratio gear shaft hole upper semicircular plate 38 constitute the upper cover box upper semicircular hole connecting part 39 which is cut and processed from a 50mm steel plate.

[0051] Example 3

[0052] On the basis of Embodiment 1 or 2, the new energy locomotive of the application is provided with a power battery 500 in the locomotive compartment 301, and the power battery 500 is connected with each motor 8; the locomotive compartment 301 is provided with a diesel generator 400, and the diesel generator 400 is connected with the power battery 500 and each motor 8 respectively.

[0053] Embodiment 4:

[0054] The driving method of the new energy locomotive of Embodiment 3 comprises:

[0055] The power battery power supply mode is to supply power to each motor 8 on each gear box installed on each bogie 200 of the locomotive 300 through the electric energy of the power battery 500;

[0056] The diesel generator power supply mode is to supply power to each motor 8 on each gear box installed on each bogie 200 of the locomotive 300 through the electric energy output by the diesel generator 400 after alternating treatment;

[0057] The hybrid power supply mode is to supply power to each motor 8 on each gear box installed on each bogie 200 of the locomotive 300 through the power battery 500 and the diesel generator 400 simultaneously, and when the motor 8 does not need to exert maximum power, the excess electric energy of the diesel generator 400 is delivered to the power battery 500 and stored in the power battery 500;

[0058] In each of the above power supply modes, the motor 8 drives the motor transmission gear 101 to rotate, the motor transmission shaft 101 drives the second transmission ratio gear 102 meshed with it to rotate, the second transmission ratio gear 102 drives the first transmission ratio gear 103 meshed with it to rotate, so that after the transmission speed is reduced, the axle gear 104 meshed with the first transmission ratio gear 103 is driven to rotate, and then the wheel 92 is driven to rotate through the axle 91, realizing the operation of the locomotive 300.

Claims

1. A new energy locomotive, the locomotive (300) comprising a main frame (302), characterized in that: The main frame (302) is provided with a car body (301) on the top, and bogies (200) are provided on both sides of the bottom; the front and rear sides of the bogie (200) are respectively provided with gear box mounting positions (202), and a plurality of frame support plates (203) are symmetrically provided on both sides, and the main frame (302) is provided on each frame support plate (203); the bogie (200) is provided with pull rods (201) facing the two gear box mounting positions (202), and the gear box mounting positions (202) are respectively provided with gear boxes, and the gear boxes include gears that can be sequentially connected. The lower bottom box body (1), the middle box body (2) and the upper cover box body (3) are detachably connected and are respectively box-shaped structures with an upper opening, an upper and lower opening and a lower opening. An axle mounting hole (A) and a first transmission ratio gear shaft hole (B) are commonly provided between the lower bottom box body (1) and the middle box body (2). A second transmission ratio gear shaft hole (C) and a motor mounting hole (D) are commonly provided between the middle box body (2) and the upper cover box body (3). A line connecting the centers of the axle mounting hole (A) and the first transmission ratio gear shaft hole (B) and a line connecting the centers of the second transmission ratio gear shaft hole (C) and the motor mounting hole (D) are connected. The angle between the center lines of the holes (D) is acute, and the center line of the first transmission ratio gear shaft hole (B) and the second transmission ratio gear shaft hole (C) is perpendicular to the center line of the second transmission ratio gear shaft hole (C) and the motor mounting hole (D); a pull rod arm (4) is provided on the middle box body (2), a pull rod hole (41) is provided at the top end of the pull rod arm (4), and the pull rod (201) is connected to the pull rod hole (41); an axle structure (9) is installed in the axle mounting hole (A), and the axle structure (9) includes an axle (91) and a plurality of pull rods (201) provided on the axle (91). 1) on the axle gear (104) and the wheel (92); the motor mounting hole (D) is mounted with a motor transmission gear (101) via a rotating shaft, and the end of the rotating shaft is mounted with a motor (8); the first transmission ratio gear shaft hole (B) and the second transmission ratio gear shaft hole (C) are respectively mounted with a first transmission ratio gear (103) and a second transmission ratio gear (102) that are meshed with each other via a rotating shaft, the axle gear (104) is meshedly connected with the second transmission ratio gear (102), and the first transmission ratio gear (103) is meshedly connected with the motor transmission gear (101); The motor (8) is a disc-type axial flux motor; A power battery (500) is provided in the locomotive body (301), and the power battery (500) is connected to each of the motors (8).

2. A new energy locomotive according to claim 1, characterized in that: The angle between the center line of the axle mounting hole (A) and the first transmission ratio gear shaft hole (B) and the center line of the second transmission ratio gear shaft hole (C) and the motor mounting hole (D) is 25°; the angle between the center line of the axle mounting hole (A) and the first transmission ratio gear shaft hole (B) and the bottom surface of the lower bottom box (1) is 10°.

3. The new energy locomotive according to claim 1, characterized in that: A diesel generator (400) is provided in the locomotive body (301), and the diesel generator (400) is connected to the power battery (500) and each of the motors (8) respectively.

4. A new energy locomotive according to any one of claims 1 to 3, characterized in that: The lower bottom box (1) comprises an upper open box structure consisting of a lower bottom box bottom plate (13) and a plurality of lower bottom box side plates (14); the upper opening of the upper open box structure is provided with a lower bottom box connecting flange (15); the upper portions of the lower bottom box side plates (14) on both sides thereof are respectively provided with axle hole lower semicircular plates (11) and first transmission ratio gear shaft hole lower semicircular plates (12); the lower bottom box connecting flange (15) is simultaneously connected to the axle hole lower semicircular plates (11) and the first transmission ratio gear shaft hole lower semicircular plates (12); The middle box body (2) comprises an upper and lower open box body structure consisting of two middle box body side panels (24), a middle box body first outer panel (23) and a middle box body second outer panel (210) between the two middle box body side panels (24), and a middle box body top panel (211) between the middle box body first outer panel (23) and one side of the middle box body second outer panel (210), wherein the lower opening and the upper opening of the upper and lower open box body structure are respectively provided with a middle box body lower connecting flange (25) and a middle box body upper connecting flange (26), and the lower parts of the two middle box body side panels (24) are respectively provided with The upper semicircular plate (21) of the axle hole and the upper semicircular plate (22) of the first transmission ratio gear shaft hole, wherein the upper part of one of the middle box side plates (24) and the upper part of the middle box top plate (211) are respectively provided with a motor mounting hole lower semicircular plate (27) and a second transmission ratio gear shaft hole lower semicircular plate (28), the upper semicircular plate (21) of the axle hole and the upper semicircular plate (22) of the first transmission ratio gear shaft hole are simultaneously connected to the middle box lower connecting flange (25), and the lower semicircular plate (27) of the motor mounting hole and the lower semicircular plate (28) of the second transmission ratio gear shaft hole are simultaneously connected to the middle box upper connecting flange (26); The upper cover box (3) comprises a lower opening box structure consisting of two upper cover box side panels (32) and an upper cover box top panel (33) between the two upper cover box side panels (32); the lower opening of the lower opening box structure is provided with an upper cover box connecting flange (36); the lower portions of the two upper cover box side panels (32) are respectively provided with a motor mounting hole upper semicircular plate (37) and a second transmission ratio gear shaft hole upper semicircular plate (38); the motor mounting hole upper semicircular plate (37) and the second transmission ratio gear shaft hole upper semicircular plate (38) are simultaneously connected to the upper cover box connecting flange (36); The lower semicircular plate (11) of the axle hole and the upper semicircular plate (21) of the axle hole constitute the axle mounting hole (A); the lower semicircular plate (12) of the first transmission ratio gear shaft hole and the upper semicircular plate (22) of the first transmission ratio gear shaft hole constitute the first transmission ratio gear shaft hole (B); the lower semicircular plate (28) of the second transmission ratio gear shaft hole and the upper semicircular plate (38) of the second transmission ratio gear shaft hole constitute the second transmission ratio gear shaft hole (C); the lower semicircular plate (27) of the motor mounting hole and the upper semicircular plate (37) of the motor mounting hole constitute the motor mounting hole (D); the lower bottom box body connecting flange (15) is adapted to and detachably connected to the lower connecting flange (25) of the middle box body, and the upper connecting flange (26) of the middle box body is adapted to and detachably connected to the upper cover box body connecting flange (36).

5. A new energy locomotive according to claim 4, characterized in that: The bottom plate (13) of the lower box body is provided with a lubricating device mounting plate (16) and a plurality of oil drain holes (18). The lubricating device mounting plate (16) is provided with a lubricating device mounting hole (17). The lubricating device mounting plate (16) is provided with an oil bottom plate (161). The oil bottom plate (161) is provided with a lubricating pump (162). The lubricating pump (162) is provided with an oil drain plug (181). The lower box body side plate (14) of the lower box body (1) is provided with a refueling device mounting hole (6). A refueling device mounting flange (61) is provided on the outside of the mounting hole (6), and an oil dipstick flange (62) and an oil dipstick (63) are installed on the refueling device mounting flange (61); the pull rod arm (4) is provided on the outside of the upper semicircular plate (21) of the axle hole; an inspection hole (34) is provided on the upper cover box (3), and an inspection hole flange (341) is provided on the outside of the inspection hole (34), and an inspection device (7) is provided on the inspection hole flange (341), and the inspection device (7) includes an inspection hole sealing gasket (72) and an inspection hole cover (71) arranged in sequence, and an air vent (73) is provided on the inspection hole cover (71).

6. The new energy locomotive according to claim 4, characterized in that: The lower semicircular plate (27) of the motor mounting hole and the lower semicircular plate (28) of the second transmission ratio gear shaft hole are an integral structure, constituting the lower semicircular hole connecting portion (29) of the middle box body; the upper semicircular plate (37) of the motor mounting hole and the upper semicircular plate (38) of the second transmission ratio gear shaft hole are an integral structure, constituting the upper semicircular hole connecting portion (39) of the upper cover box body; the middle portions of the lower semicircular hole connecting portion (29) of the middle box body and the upper semicircular hole connecting portion (39) of the upper cover box body are correspondingly provided with mounting holes and are detachably connected by fasteners.

7. The new energy locomotive according to claim 4, characterized in that: A plurality of ribs (5) are provided between the axle hole lower semicircular plate (11) and the first transmission ratio gear shaft hole lower semicircular plate (12) and the lower bottom box body side plate (14), between the axle hole upper semicircular plate (21) and the first transmission ratio gear shaft hole upper semicircular plate (22) and the middle box body side plate (24), and between the middle box body lower semicircular hole connecting portion (29) and the middle box body top plate (211) on the same side. The axle hole lower semicircular plate (11) and the axle hole upper semicircular plate (21) on one side of the lower bottom box body (1) and the middle box body (2) are wider than the axle hole lower semicircular plate (11) and the axle hole upper semicircular plate (21) on the other side.

8. A driving method for a new energy locomotive according to claim 4, characterized in that: include: In a power battery power supply mode, the electric energy of the power battery (500) is used to supply power to the motors (8) on the gear boxes installed on the bogies (200) of the locomotive (300); In a diesel generator power supply mode, the diesel generator (400) outputs electrical energy, which is then converted and processed to supply power to the motors (8) on the gearboxes installed on the bogies (200) of the locomotive (300); In a hybrid power supply mode, power is supplied to the motors (8) mounted on the gearboxes (200) of the locomotive (300) simultaneously through the power battery (500) and the diesel generator (400). When the motors (8) are not required to exert their maximum power, the excess power of the diesel generator (400) is transmitted to the power battery (500) and stored in the power battery (500); In each of the above-mentioned energy supply modes, the motor (8) drives the motor transmission gear (101) to rotate, the motor transmission gear (101) drives the second transmission ratio gear (102) meshed with it to rotate, and the second transmission ratio gear (102) drives the first transmission ratio gear (103) meshed with it to rotate, so that after the transmission is decelerated, it drives the axle gear (104) meshed with the first transmission ratio gear (103) to rotate, and then drives the wheel (92) to rotate through the axle (91), thereby realizing the movement of the locomotive (300).

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