Internal combustion power pack

Abstract

According to the internal combustion power pack, modular design is adopted, and a diesel engine, an electric generator, a radiator, a fuel tank, an air filter, a silencer, a diesel oxidation catalyst, a storage battery and an electric cabinet are reasonably arranged in a mounting space defined by a bottom frame and a mute box body; the diesel engine, the generator, the radiator and the storage battery are arranged in the middle, and the fuel tank, the air filter, the silencer, the diesel oxidation catalyst and the electric cabinet are arranged in a surrounding mode. Wherein the fuel tank is connected to the second side wall of the mute box body, and the electric control box is connected to the first side wall of the mute box body; the air filter is hung below a top plate of the mute box body; the silencer and the diesel oxidation catalyst are connected to the second end wall of the mute box body; according to parts needing to be overhauled and replaced, the parts can be overhauled only by detaching the first side wall, the second side wall, the first end wall, the second end wall or the top plate, and the convenience of maintenance operation is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of locomotive equipment, and in particular relates to an internal combustion power pack. Background Art

[0002] A shunting locomotive is a locomotive used for shunting operations such as train marshaling, dismantling, line switching, and vehicle pickup and delivery. Its working characteristics are frequent starting and stopping, low operating speed, and large short-term load. At present, more and more shunting locomotives use a small internal combustion power pack with traction batteries. This type of small internal combustion power pack is mainly used to charge traction batteries and power locomotive auxiliary systems, extending the maximum continuous use time of the locomotive. The above-mentioned type of internal combustion power pack has many internal devices, high integration, and compact installation. The internal fuel coarse filter, fuel fine filter, oil filter, air filter and other equipment need to be replaced regularly, and other components may also need maintenance and replacement. Generally, an inspection window is provided on the silent box of the power pack for the inspection and replacement of internal equipment. For example, Chinese invention patent announcement No. CN113503210A introduces a power unit frame for subway vehicles, in which an inspection door is provided on the silent box for the inspection and replacement of internal equipment. However, components far from the inspection door cannot be inspected through the inspection door. At the same time, when large components in the internal combustion power pack need to be inspected, it is inconvenient to perform inspection operations through the inspection door. At the same time, the space of the locomotive is limited. The internal space and overall size of the internal combustion power pack need to be compressed during design. The components are very compact. It is difficult to inspect and maintain the internal components of the internal combustion power pack through the inspection door. It is still necessary to hoist the silent box and dismantle all equipment installed on the silent box, resulting in a large maintenance workload. Summary of the invention

[0003] In view of this, the object of the present invention is to provide an internal combustion power pack having the advantages of reasonable layout, convenient maintenance, light and firm structure, and good waterproof and sound insulation effects.

[0004] The invention discloses an internal combustion power pack, comprising a diesel engine, a generator, a bottom frame, a mute box, a radiator, a fuel tank, an air filter, a muffler, a diesel oxidation catalyst, a battery and an electric control box;

[0005] The soundproof box comprises a first side wall, a second side wall, a first end wall, a second end wall and a top plate, wherein the first side wall, the first end wall, the second side wall and the second end wall are connected in sequence, and the top plate is located on the top of the soundproof box;

[0006] The bottom frame and the silent box enclose an installation space for the internal combustion power pack;

[0007] The diesel engine, the generator and the radiator are centrally arranged on the bottom frame, and the fuel tank, the air filter, the muffler, the diesel oxidation catalyst, the battery and the electric control box surround the centrally arranged diesel engine, the generator and the radiator and are arranged in the installation space;

[0008] The fuel tank is close to the second side wall, the electric control box is connected to the first side wall, and the first side wall and / or the second side wall are detachably connected to the bottom frame and the top plate respectively.

[0009] When the internal equipment needs to be repaired, the need to repair the internal equipment can be met by removing only the side wall of the silent box: by removing the first side wall, the electric control box connected to the first side wall can be removed together, and both the electric control box and the diesel generator set in the center can be repaired; by removing the second side wall, the fuel tank can be repaired, which greatly simplifies the maintenance steps. The above-mentioned layout of the fuel tank, air filter, muffler, diesel oxidation catalyst, battery and electric control box surrounding the centrally arranged diesel engine, generator and radiator arranged in the installation space requires only one component to be removed when repairing the components in the internal combustion power pack, such as disassembling the fuel tank adjacent to the second side wall, and the centrally arranged diesel generator set is completely exposed, and the operator can perform unobstructed maintenance operations on the centrally arranged diesel generator set. The above-mentioned setting can realize the maintenance and replacement of components without hoisting the silent box, which greatly optimizes the subsequent maintenance procedures of the internal combustion power pack.

[0010] Furthermore, the air filter is suspended under the top plate; and the top plate is detachably connected to the first side wall, the second side wall, the first end wall and the second end wall.

[0011] Furthermore, the muffler and the diesel oxidation catalyst are connected to the second end wall; the first end wall and / or the second end wall are detachably connected to the bottom frame and the top plate respectively.

[0012] Furthermore, at least one movably connected air intake grille is respectively disposed on the first side wall and the second side wall; and the battery is disposed close to the air intake grille.

[0013] Furthermore, the silent box further comprises a partition, which separates the internal combustion power pack into a first chamber and a second chamber;

[0014] The diesel engine, the generator, the radiator, the fuel tank, the air filter, the battery and the electric control box are located in the first room;

[0015] The muffler and the diesel oxidation catalyst are located in the second chamber;

[0016] A ventilation window is provided on the top plate corresponding to the second chamber.

[0017] Furthermore, the bottom frame includes a heat exchanger mounting beam, a diesel engine mounting beam and a generator mounting beam which are arranged in parallel in sequence, and a fuel tank mounting beam with a T-shaped structure is provided between the diesel engine mounting beam and the generator mounting beam.

[0018] Furthermore, an upward water retaining plate is provided around the opening of the ventilation window; and the top plate is provided with a rain shielding eave extending outward.

[0019] Furthermore, the bottom frame also includes a bottom plate.

[0020] Furthermore, a waterproof sealing device is provided between the bottom frame and the soundproof box; a waterproof sealing device is provided between the adjacent first side wall, first end wall, second side wall and second end wall; and a plurality of drainage holes are provided on the bottom plate.

[0021] Furthermore, a plurality of mounting fixtures are provided inside the soundproof box for laying and fixing sound insulation and sound absorbing materials.

[0022] The present invention has the following beneficial effects:

[0023] 1) The layout of the internal combustion power pack is reasonable and easy to maintain. The internal combustion power pack adopts a modular design, and the diesel engine, generator, radiator, fuel tank, air filter, muffler, diesel oxidation catalyst, battery and electronic control box are reasonably arranged in the installation space surrounded by the bottom frame and the silent box; the diesel engine, generator and radiator are arranged in the center, and the fuel tank, air filter, muffler, diesel oxidation catalyst, battery and electronic control box are arranged around; wherein, the first side wall, the second side wall, the first end wall, the second end wall and the top plate of the silent box can be connected in a detachable manner. Moreover, the fuel tank is connected to the second side wall of the silent box, and the electronic control box is connected to the first side wall of the silent box; the air filter is suspended under the top plate of the silent box; the muffler and diesel oxidation catalyst are connected to the second end wall of the silent box; according to the parts that need to be repaired and replaced, only the first side wall, the second side wall, the first end wall, the second end wall or the top plate can be disassembled to repair the parts, which improves the convenience of maintenance operations.

[0024] 2) The internal combustion power pack is light and strong. The bottom frame structure is designed, and the bottom frame is arranged in parallel with the heat exchanger mounting beam, diesel engine mounting beam and generator mounting beam in sequence. A T-shaped fuel tank mounting beam is arranged between the diesel engine mounting beam and the generator mounting beam. The heat exchanger mounting beam, diesel engine mounting beam, generator mounting beam and fuel tank mounting beam strengthen the lateral strength of the bottom frame while carrying the equipment thereon. The bottom frame structure reduces the weight of the whole package while ensuring the strength, thus realizing the lightweight design of the internal combustion power pack.

[0025] 3) The internal combustion power pack has good waterproof performance. The internal combustion power pack is divided into the first chamber and the second chamber by a partition. Equipment that needs to be exhausted to the outside and related to the exhaust system, such as the muffler and the diesel oxidation catalyst, are located in the second chamber, and the remaining equipment components are located in the first chamber. The first chamber is waterproof and sealed. The top plate is provided with a rain shield extending outward, and the outer edge of the ventilation window opening corresponding to the top plate of the second chamber is provided with a water retaining strip to prevent a large amount of rainwater from flowing into the internal combustion power pack. The bottom plate is provided with a number of drainage holes to prevent internal water accumulation and avoid equipment damage and maintenance due to excessive humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of an explosion of an internal combustion power pack provided in some embodiments of the present invention,

[0027] Figure 2 is a top view of the interior of an internal combustion power pack provided by some embodiments of the present invention,

[0028] Figure 3 is an overall schematic diagram of a soundproof box provided in some embodiments of the present invention,

[0029] Figure 4 is an overall schematic diagram of a soundproof box provided in some embodiments of the present invention,

[0030] Figure 5 is an overall schematic diagram of a bottom frame provided in some embodiments of the present invention,

[0031] Figure 6 is a top view of a bottom frame provided in some embodiments of the present invention,

[0032] Figure 7 yes Figure 6 Middle AA section view,

[0033] Figure 8 yes Figure 6 Middle BB section,

[0034] Fig. 9 is a side view of a soundproof box provided in some embodiments of the present invention,

[0035] Fig.10 yes Fig. 9The enlarged schematic diagram at A in the middle,

[0036] Fig.11 yes Fig. 9 CC section view,

[0037] Fig.12 is a side view of a soundproof box provided in some embodiments of the present invention,

[0038] Fig.13 yes Fig.12 Enlarged schematic diagram of point B in the middle.

[0039] Description of reference numerals:

[0040] 1 diesel engine, 2 generator, 3 bottom frame, 4 silent box, 5 radiator, 6 fuel tank, 7 air filter, 8 muffler, 9 diesel oxidation catalyst, 10 battery, 11 electronic control box;

[0041] 31 first frame beam, 32 second frame beam, 33 third frame beam, 34 fourth frame beam, 35 diesel engine mounting beam, 36 generator mounting beam, 36a first fuel tank mounting beam, 36b second fuel tank mounting beam, 37 heat exchanger mounting beam, 38 bottom plate;

[0042] 41 first side wall, 42 second side wall, 43 first end wall, 44 second end wall, 45 top plate, 46 partition plate;

[0043] 311 first lifting block, 312a first side wall stop, 312b second side wall stop, 313, 321 second lifting block, 323, 322a third side wall stop, 322b fourth side wall stop, 331 mute box mounting fastener, 341, 351 pad, 352 stud, 353 diesel engine mounting plate, 354 diesel engine mounting plate reinforcement, 355 diesel engine mounting beam reinforcement, 356 diesel engine mounting beam tie rod, 361 generator mounting movable nut, 362 generator mounting movable nut seat, 363 generator mounting beam reinforcement, 381 outlet, 382 battery mounting seat, 38 3 drainage hole, 384 first exhaust pipe mounting seat, 385 partition mounting block, 421 air intake grille, 422 sound insulation cotton, 423 sound insulation cotton mounting block, 424 fuel tank top fixing seat, 425 second side wall vertical reinforcement rib, 426 second side wall horizontal reinforcement rib, 427b threaded hole, 428 second side wall mounting bolt, 431 first vertical sealing gasket, 441 second vertical sealing gasket, 443 muffler mounting seat, 444 second exhaust pipe mounting seat, 452 second partition mounting block, 452a partition mounting fastener, 453 top sealing gasket, 453a top plate mounting fastener, 454 air filter mounting bracket. DETAILED DESCRIPTION

[0044] In order to more clearly and completely describe the technical solution of the present invention, the present invention is further described in detail by specific embodiments with reference to the relevant drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Various changes can be made within the scope of the rights of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0045] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be a centered element at the same time. On the contrary, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method. In addition, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0047] See also Figure 1-4 As shown, the present invention provides an internal combustion power pack, including a diesel engine 1, a generator 2, a bottom frame 3, a silent box 4, a radiator 5, a fuel tank 6, an air filter 7, a muffler 8, a diesel oxidation catalyst 9, a battery 10 and an electric control box 11; wherein, as Figure 3-4 As shown, the silent box 4 includes a first side wall 41, a second side wall 42, a first end wall 43, a second end wall 44 and a top plate 45; the bottom frame 3 and the silent box 4 enclose an installation space for the internal combustion power pack; in the above installation space, the layout of each component is as follows: Figure 2As shown, the diesel engine 1, the generator 2 and the radiator 5 are centrally arranged on the bottom frame 3, and the fuel tank 6, the air filter 7, the muffler 8, the diesel oxidation catalyst 9, the battery 10 and the electric control box 11 surround the centrally arranged diesel engine 1, the generator 2 and the radiator 5 and are arranged in the installation space. The above arrangement fully considers the compact installation space of the locomotive and the internal inspection and maintenance requirements of the internal combustion power pack, and the internal combustion power pack is modularly designed: the diesel generator set includes the diesel engine 1 and the generator 2, and the diesel generator set is arranged in the center as a whole and fixed to the bottom frame 3 through the shock absorber; the radiator 5 of the internal combustion power pack is mainly composed of a cooling fan, a heat exchanger and related pipelines. The cooling fan is installed at the free end of the diesel engine 1, driven by the diesel engine 1, and provides power for the intake and exhaust of the box. The heat exchanger is fixed on the bottom frame 3, arranged in a line with the diesel generator set and the cooling fan, and cools the body of the diesel engine 1. The fuel tank 6, air filter 7, muffler 8, diesel oxidation catalyst 9, battery 10 and electronic control box 11 are arranged around the central diesel generator set and radiator 5. The above layout only requires removing one component at most when repairing the components in the internal combustion power pack, so that any component can be inspected, which greatly simplifies the maintenance steps.

[0048] like Figure 2-4 As shown, in some embodiments provided by the present invention, the fuel tank 6 is connected to the second side wall 42, the electric control box 11 is connected to the first side wall 41, and the first side wall 41 and / or the second side wall 42 are detachably connected to the bottom frame 3 and the top plate 45, respectively. When the internal equipment needs to be repaired, the need to repair the internal equipment can be met by removing only the side wall of the silent box 4. For example: by removing the first side wall 41, the electric control box 11 connected to the first side wall can be removed together, and both the electric control box 11 and the diesel generator set in the center can be repaired; by removing the second side wall 42, the fuel tank 6 can be repaired. Furthermore, by disassembling the fuel tank 6 adjacent to the second side wall 42, the diesel generator set arranged in the center is completely exposed, and the operator can perform unobstructed repair operations on the diesel generator set arranged in the center. The above-mentioned setting can realize the repair and replacement of components without hoisting the silent box, which greatly optimizes the subsequent repair and maintenance procedures of the internal combustion power pack.

[0049] like Figure 2-4 As shown, in some embodiments provided by the present invention, the air filter 7 is suspended under the top plate 45; the top plate 45 is detachably connected to the first side wall 41, the second side wall 42, the first end wall 43 and the second end wall 44. In this embodiment, by removing the top plate 45, the air filter 7 with a high maintenance frequency can be easily repaired, and at the same time, all the components in the entire internal combustion power pack are exposed, which is convenient for operators to inspect the internal combustion power pack from above.

[0050] like Figure 2-4As shown, in some embodiments provided by the present invention, the muffler 8 and the diesel oxidation catalyst 9 are connected to the second end wall 44; the first end wall 43 and / or the second end wall 44 are detachably connected to the bottom frame 3 and the top plate 45, respectively. In this embodiment, by disassembling the first end wall 43 and / or the second end wall 44 and removing the muffler 8 and the diesel oxidation catalyst 9 connected to the second end wall 44, the components of the internal combustion power pack can be repaired from both ends.

[0051] In some specific application scenarios, the reserved space inside the locomotive is large, and the four walls and the outer periphery of the top plate of the soundproof box 4 have corresponding operating space. Even when the reserved space inside the locomotive is limited, when the space for placing the internal combustion power pack is insufficient, the location where the internal combustion power pack is placed is limited for inspection from the top surface, or is limited for inspection from the two side surfaces, or is limited for inspection from both end surfaces. It is still possible to select a suitable position and a detachable wall or top plate for inspection according to the parts to be inspected, without the need to hoist the internal combustion power pack as a whole for inspection. In other specific application scenarios, when the location of the internal combustion power pack is very compact and there is no reserved maintenance space, and when the internal combustion power pack needs to be overhauled as a whole, the internal combustion power pack can be hoisted as a whole, and then the first side wall 41, the second side wall 42, the first end wall 43, the second end wall 44 and the top plate 45 can be freely selected to be disassembled individually or in any combination of surfaces, thereby reducing the disassembly workload during the maintenance process. If necessary, all side surfaces and the top surface can be opened for maintenance work.

[0052] like Figure 3 , Figure 4 As shown, in some embodiments provided by the present invention, at least one movably connected air intake grille is respectively provided on the first side wall 41 and the second side wall 42; the battery 10 is arranged near the air intake grille. Daily maintenance and inspection of the internal combustion power pack is carried out through the air intake grille on the side wall, one side of the air intake grille is fixed to the side wall by a hinge, and the other side is locked to the side wall by a door lock mechanism. For daily maintenance, a square hole key can be used to unlock the door lock mechanism, which is convenient for maintenance of internal equipment and meets the intake requirements of the diesel engine.

[0053] like Figure 3As shown, in some embodiments provided by the present invention, the mute box 4 also includes a partition 46, which divides the internal combustion power pack into a first chamber and a second chamber; the diesel engine 1, the generator 2, the radiator 5, the fuel tank 6, the air filter 7, the battery 10 and the electric control box 11 are located in the first chamber; the muffler 8 and the diesel oxidation catalyst 9 are located in the second chamber; and the top plate 45 is provided with a ventilation window corresponding to the second chamber. In this embodiment, the equipment related to the exhaust system such as the muffler 8 and the diesel oxidation catalyst 9 that need to be exhausted to the outside is located in the second chamber, and the other equipment components are located in the first chamber, which can avoid the equipment in the first chamber from being exposed to the outside, and reduce the damage to the diesel engine 1, the generator 2, the radiator 5, the fuel tank 6, the air filter 7, the battery 10 and the electric control box 11 caused by external adverse factors such as rainwater intrusion.

[0054] like Figure 5 As shown, in some embodiments provided by the present invention, the bottom frame 3 includes a heat exchanger mounting beam 37, a diesel engine mounting beam 35 and a generator mounting beam 36 which are arranged in parallel in sequence, and a fuel tank mounting beam of a T-shaped structure is provided between the diesel engine mounting beam 35 and the generator mounting beam 36. Exemplarily, the bottom frame 3 includes a first frame beam 31, a second frame beam 32, a third frame beam 33, a fourth frame beam 34, a diesel engine mounting beam 35, a generator mounting beam 36, a heat exchanger mounting beam 37, a first fuel tank mounting beam 36a, a second fuel tank mounting beam 36b and other components. The four frame beams constitute the external basic bearing mounting structure, and the diesel engine mounting beam 35, the generator mounting beam 36 and the heat exchanger mounting beam 37 are used to strengthen the transverse strength of the frame and carry the corresponding equipment thereon. The diesel engine mounting beam 35 and the generator mounting beam 36 are internally strengthened with square ribs to strengthen the overall strength, so as to avoid deformation of the mounting beam structure caused by long-term high vibration of the diesel generator set. The first fuel tank mounting beam 36a and the second fuel tank mounting beam 36b are T-shaped structures. The first fuel tank mounting beam 36a is welded to the diesel engine mounting beam 35 and the generator mounting beam 36 respectively, so as to strengthen the longitudinal strength of the middle area of ​​the bottom frame 3. The second fuel tank mounting beam 36b is welded to the first fuel tank mounting beam 36a and the second frame beam 32 respectively. The generator mounting beam 36, the first fuel tank mounting beam 36a and the second fuel tank mounting beam 36b jointly support the installation of the fuel tank 6. The bottom frame 3 adopts the above structure to reduce the weight of the whole package while ensuring the strength, so as to realize the lightweight design of the internal combustion power package.

[0055] like Figure 5 As shown, in some embodiments provided by the present invention, the bottom frame 3 further includes a bottom plate 38. The bottom plate 38 is mainly used to reduce the transmission of the noise of the internal combustion power pack to the outside and to carry lightweight components.

[0056] like Figure 4As shown, in some embodiments provided by the present invention, an upward water retaining plate is provided around the vent opening on the top plate 45; Figure 3 , 4 As shown in FIGS. 10 and 13 , the top plate 45 is provided with a rain shelter extending outward. Fig.11 As shown, in some other embodiments provided by the present invention, a waterproof sealing device is provided between the bottom frame 3 and the soundproof box 4; a waterproof sealing device is provided between the adjacent first side wall 41, the first end wall 43, the second side wall 42, and the second end wall 44; the waterproof sealing device is such as a sealing gasket. Figure 5 As shown, a plurality of drainage holes 383 are provided on the bottom plate 38. For example, after the bottom plate 38 is connected to the bottom frame 3 by welding, the bottom plate 38 is divided into regions, and drainage holes 383 are provided in each region, which can effectively reduce the impact of accumulated water on the components inside the box. The above-mentioned designs such as the sealing gasket, the water retaining plate, and the rain shield canopy can effectively prevent external rainwater from entering the internal combustion power pack. The first chamber and the second chamber are separated and the bottom drainage is adopted internally to reduce the impact range of rainwater entering the box body, and the internal rainwater is quickly discharged in different regions to prevent water accumulation and avoid equipment damage due to excessive humidity that requires maintenance.

[0057] like Figure 5 As shown, in some embodiments provided by the present invention, a plurality of mounting fixtures are provided on the inner side of the soundproof box 4 for laying fixed sound insulation and sound-absorbing materials. Exemplarily, a plurality of sound insulation cotton mounting plates are welded on the inner surface of the soundproof box 4 for laying sound insulation cotton. The internal combustion power pack provided by the present invention eliminates a large number of maintenance windows, and at the same time, installing fixed sound insulation and sound-absorbing materials on the inside can effectively cut off the noise propagation path, which is more conducive to the overall noise control of the internal combustion power pack. At the same time, the method of laying fixed sound insulation cotton using mounting fixtures such as sound insulation cotton mounting plates is more convenient than the method of bonding or directly mechanically fixing the sound insulation cotton. The installation and replacement of sound insulation materials.

[0058] The technical solution of the present invention is described below with specific embodiments:

[0059] Example

[0060] like Figure 1-12 As shown, the present invention provides an internal combustion power pack. Figure 1 , Figure 2 As shown, it includes a diesel engine 1, a generator 2, a bottom frame 3, a silent box 4, a radiator 5, a fuel tank 6, an air filter 7, an exhaust pipe, a muffler 8, a diesel oxidation catalyst 9, a battery 10 and an electric control box 11. The bottom frame 3 is responsible for directly carrying the diesel engine 1, the generator 2, the radiator 5, the fuel tank 6, the battery 10 and the silent box 4.

[0061] like Figure 3 , Figure 4As shown, the soundproof box 4 is mainly composed of six parts: a first side wall 41, a second side wall 42, a first end wall 43, a second end wall 44, a top plate 45, and a partition 46. All side walls and end walls are bent on all sides, with a bending angle of 90 degrees and a length of 40 mm. The bent parts at both ends are used to align and connect the side walls and the end walls. The bottom bent part is stably connected to the bottom frame 3 after opening a mounting hole. The top bent part is used to support the top plate 45, and a top plate mounting hole is opened. The side walls, end walls, and top plate of the soundproof box 4 are connected by fasteners, so any part of the soundproof box 4 can be easily disassembled to avoid lifting the entire box.

[0062] The air filter 7 and its pipeline are suspended under the top plate 45 through the air filter mounting bracket 454. The muffler 8 and the exhaust pipeline are fastened to the second end wall 44 through the muffler mounting seat 443 and the second exhaust pipe mounting seat 444. The diesel oxidation catalyst 9 is fixed to the second end wall 44 in the same way. After the above equipment is fixed, it is supported by the bottom frame 3. Figure 3 As shown, the second side wall 42 is equipped with two air intake grilles 421. Figure 4 As shown, the first side wall 41 is provided with an inspection port and an air intake grille. It is convenient to inspect the fuel filter, oil filter, air filter and battery. Specifically, the air filter 7 and the air intake pipeline are installed under the top plate 45 through a bracket, and the air intake port faces the air intake grille, which is convenient for inspection and replacement of the filter element. The battery 10 is arranged near the air intake grille to facilitate later inspection and maintenance. At the same time, the air intake grille provides sufficient air for the operation and cooling of the diesel engine.

[0063] like Figure 5 As shown, the bottom frame 3 is composed of a first frame beam 31, a second frame beam 32, a third frame beam 33, a fourth frame beam 34, a diesel engine mounting beam 35, a generator mounting beam 36, a first fuel tank mounting beam 36a, a second fuel tank mounting beam 36b, a heat exchanger mounting beam 37, a bottom plate 38, and a bottom sealing pad 39. The first frame beam 31, the third frame beam 33, the second frame beam 32, and the fourth frame beam 34 are connected end to end in sequence to form a basic frame. The first frame beam 31, the second frame beam 32, the third frame beam 33, and the fourth frame beam 34 are all made of Q235A channel steel, which has the characteristics of high strength and strong stability, and can effectively bear the system weight and the impact load when the diesel engine 1 is running. The diesel engine mounting beam 35, the generator mounting beam 36, and the heat exchanger mounting beam 37 are arranged in a transverse manner and welded with the first frame beam 31 and the second frame beam 32 to strengthen the transverse strength of the basic frame. The first fuel tank mounting beam 36a is welded with the diesel engine mounting beam 35 and the generator mounting beam 36, which not only strengthens the longitudinal strength of the basic frame, but also forms the basic mounting structure of the fuel tank together with the first fuel tank mounting beam 36a, the second fuel tank mounting beam 36b and the generator mounting beam 36. Figure 8As shown, four sets of generator mounting movable nut seats 362 are welded on the inner surface of the generator mounting beam 36, and the generator mounting movable nut seats 362 are used to place and limit the generator mounting movable nuts 361. This structure is more convenient to install than directly welding nuts, and eliminates the installation difficulties caused by welding positioning deviation. Four generator mounting beam reinforcement ribs 363 are welded inside the generator mounting beam 36 to enhance the overall strength of the mounting beam.

[0064] The diesel engine mounting beam 35 and the generator mounting beam 36 are both bent from 5 mm Q235A carbon steel. Figure 2 , Figure 5 As shown, after the diesel engine 1 and the generator 2 are assembled, they are supported at three points and fixed to the diesel engine mounting beam 35 and the generator mounting beam 36 through shock absorbers, with one supporting point on the diesel engine side and two supporting points on the generator side.

[0065] like Figure 7 As shown, a pad 351 is welded on the upper surface of the diesel engine mounting beam 35 to make up for the height difference between the diesel engine and the generator installation point, and provide support for the shock absorber mounting stud 352. The stud 352 is in the form of an internal thread, which is used to fix the shock absorber of the diesel engine and support the diesel engine mounting plate 353. The stud 352 is fixed to the pad 351 and the diesel engine mounting plate 353 by plug welding, which can effectively bear the weight and impact of the diesel engine borne by the diesel engine mounting plate 353, and is used for welding and positioning of the upper and lower plates. The two sides of the diesel engine mounting plate 353 are welded and fixed to the pad 351 by fillet welds, and the diesel engine mounting plate reinforcement 354 is used in the middle to strengthen the support. The pad 351 and the diesel engine mounting plate reinforcement 354 are welded by fillet welding, and the diesel engine mounting plate 353 and the diesel engine mounting plate reinforcement 354 are connected by plug welding, which strengthens the support strength of the diesel engine mounting plate 353 and facilitates positioning welding. Two diesel engine mounting beam reinforcement ribs 355 are welded inside the diesel engine mounting beam to strengthen the overall strength of the mounting beam. Considering the internal wiring requirements of the internal combustion power pack, a diesel engine mounting beam tie rod 356 for wiring is welded on the diesel engine mounting beam 35.

[0066] like Figure 5 and Figure 6 As shown, the bottom of the bottom frame 3 is welded and fixed to the bottom plate 38. The bottom plate 38 is mainly used to reduce the transmission of the internal combustion power pack noise to the outside and to carry lightweight components. For example, the bottom 38 is provided with a battery mounting seat 382 for mounting the battery 10. In addition, the bottom plate 38 will open an outlet 381 according to the internal equipment layout, and weld the battery mounting seat 382, ​​the first exhaust pipe mounting seat 384 and the partition mounting block 385. Figure 2 , Figure 3As shown, the partition 46 is connected and fixed to the top plate 45 through the second partition mounting block 452 and the partition mounting fastener 452a, and the bottom is fixed to the bottom frame 3 through the first partition mounting block 385 and the fastener. The partition mounting block 385 is mainly used to connect and fix the lower part of the partition, and divide the internal combustion power pack into a first chamber and a second chamber through the partition 46. The exhaust system in this embodiment mainly includes equipment such as a muffler 8 and a diesel oxidation catalyst 9. All equipment of the exhaust system is installed in the second chamber, and the muffler 8 and the diesel oxidation catalyst 9 are fixed to the second end wall through a clamp. The exhaust pipeline is connected and fixed to the top plate, the bottom plate and the second end wall respectively. The first exhaust pipe mounting seat 384 is mainly used to fix the exhaust pipe connected to the muffler 8 and the diesel oxidation catalyst 9 to transport the exhaust gas generated by the operation of the diesel engine 1.

[0067] like Figure 5 As shown, the first frame beam 31 and the second frame beam 32 have equidistant sound box mounting holes on their upper surfaces for connecting and fixing the bottom of the side wall of the sound box; three equidistant mounting holes are provided on their lower surfaces for connecting and fixing the internal combustion power pack to the locomotive. The third frame beam 33 and the fourth frame beam 34 have equidistant sound box mounting holes on their upper surfaces for fixing the end wall of the sound box. The first side wall stopper 312a, the second side wall stopper 312b, the third side wall stopper 322a and the fourth side wall stopper 322b are welded respectively for side wall positioning and installation. The first lifting block 311 and the second lifting block 321 are welded between the side plates and the web plates of the first frame beam 31 and the second frame beam 32 respectively for further strengthening the frame strength and for lifting the internal combustion power pack as a whole.

[0068] like Fig.10 As shown, the second side wall 42 is connected to the second end wall 44 by four sets of fasteners, a nut is welded on the second end wall 44 side, and the second side wall 42 side is fixed with a second side wall mounting bolt 428 and a nut welded inside the second end wall 44. The second side wall 42 and the first end wall 43, the first side wall 41 and the second end wall 44, and the first side wall 41 and the first end wall 43 are fastened in the same manner.

[0069] like Fig. 9 As shown, four sets of fastening nuts are welded to the bottom bending part of the second end wall 44, and four sets of mute box installation fasteners 331 are used on the bottom frame 3 side to correspond to the welded nuts of the second end wall 44 one by one and are reliably connected. Fig.12 As shown, the first end wall 43 is connected to the bottom frame 3 in the same manner.

[0070] like Fig.10 and Fig.13 As shown, the lifting hole 427a at the right end of the second side wall and the lifting hole 427b at the left end of the second side wall are M12 threaded holes with a hole depth of 20 mm, which can be installed with lifting equipment for lifting the side wall. The first side wall 41 has the same lifting structure design.

[0071] like Fig.11 As shown, the second side wall 42 inner surface is strengthened with overall strength and flatness by second side wall vertical reinforcement ribs 425 and second side wall transverse reinforcement ribs 426. Considering the overall height and center of gravity of the fuel tank 6 are relatively high, a fuel tank top fixing seat 424 is welded on the inner surface of the second side wall 42 to fix the fuel tank and prevent the fuel tank from tipping over.

[0072] like Fig.11 As shown, the second side wall 42 is welded with a plurality of sound insulation cotton mounting blocks 423, and the plurality of sound insulation cotton mounting blocks 423 are combined into a buckle form for mounting the sound insulation cotton 422. The remaining first side wall 41, the first end wall 43, the second end wall 44, and the top plate 45 all use the same mounting blocks to fix the sound insulation cotton. This method of fixing the sound insulation cotton is easier to install and replace than bonding or mechanical fixing methods.

[0073] like Fig.11 As shown, the second end wall 44 and the top plate 45 are fastened and connected by welding nuts on the top of the end wall and the top plate mounting fasteners 453a, and waterproof sealing is performed by the top sealing gasket 453. The first side wall 41, the second side wall 42 and the first end wall 43 and the top plate 45 are fastened and sealed in the same way.

[0074] like Fig.11 As shown, the second end wall 44 and the second side wall 42 are sealed with a second vertical gasket 441, and the second side wall 42 and the first end wall 43 are sealed with a first vertical gasket 431. The first side wall 41 and the second end wall 44, and the first side wall 41 and the first end wall 43 are fastened and sealed in the same way.

[0075] like Fig.11 As shown, a bottom sealing pad 39 is fixed on the upper surface of the bottom frame 3 by bonding to provide a waterproof seal between the bottom frame 3 and the soundproof box 4. Figure 5 and Figure 6 As shown, after the bottom plate 38 is welded to the basic frame, the bottom plate 38 is divided into areas, and each area is provided with drainage holes 383, which can effectively reduce the impact of water accumulation. In addition, a water retaining plate is welded at the outlet 381 to effectively prevent rainwater from soaking the cable.

[0076] Compared with the prior art, this embodiment fully considers the compact installation space of the locomotive and the internal inspection and maintenance requirements of the internal combustion power pack, and adopts a modular design for the internal combustion power pack body, which can realize the inspection and replacement of all components without lifting the internal combustion power pack or the silent body, greatly optimizing the subsequent inspection and maintenance space requirements; a large number of inspection windows are eliminated, reducing the workload of daily inspection and maintenance. At the same time, reducing the inspection windows can effectively cut off the noise propagation path, which is more conducive to the overall noise control of the internal combustion power pack; sealing gaskets, water baffles, rain shields and other designs are used to prevent external rainwater from entering, and regional separation and zone drainage are adopted internally to reduce the impact range of rainwater entering the box body, and quickly discharge internal rainwater in zones to prevent water accumulation; through the bottom frame structure design, lighter steel can be used to meet the overall strength requirements, further reduce the frame weight, and realize the lightweight design of the internal combustion power pack.

[0077] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An internal combustion power pack, characterized in that: It comprises a diesel engine (1), a generator (2), a bottom frame (3), a soundproof box (4), a radiator (5), a fuel tank (6), an air filter (7), a muffler (8), a diesel oxidation catalyst (9), a battery (10) and an electric control box (11); The soundproof box (4) comprises a first side wall (41), a second side wall (42), a first end wall (43), a second end wall (44) and a top plate (45); the first side wall (41), the first end wall (43), the second side wall (42) and the second end wall (44) are connected in sequence, and the top plate (45) is located on the top of the soundproof box (4); The bottom frame (3) and the soundproof box (4) enclose an installation space for the internal combustion power pack; The diesel engine (1), the generator (2) and the radiator (5) are centrally arranged on the bottom frame (3); the fuel tank (6), the air filter (7), the muffler (8), the diesel oxidation catalyst (9), the battery (10) and the electric control box (11) are arranged in the installation space around the centrally arranged diesel engine (1), the generator (2) and the radiator (5); The fuel tank (6) is close to the second side wall (42), the electric control box (11) is connected to the first side wall (41), and the first side wall (41) and / or the second side wall (42) are respectively detachably connected to the bottom frame (3) and the top plate (45).

2. The internal combustion power pack according to claim 1, characterized in that: The air filter (7) is suspended under the top plate (45); the top plate (45) is detachably connected to the first side wall (41), the second side wall (42), the first end wall (43) and the second end wall (44).

3. The internal combustion power pack according to claim 1, characterized in that: The muffler (8) and the diesel oxidation catalyst (9) are connected to the second end wall (44); the first end wall (43) and / or the second end wall (44) are detachably connected to the bottom frame (3) and the top plate (45) respectively.

4. The internal combustion power pack according to claim 1, characterized in that: At least one movably connected air intake grille is respectively provided on the first side wall (41) and the second side wall (42); and the storage battery (10) is arranged close to the air intake grille.

5. The internal combustion power pack according to claim 1, characterized in that: The soundproof box (4) further comprises a partition (46), wherein the partition (46) divides the soundproof box (4) into a first chamber and a second chamber; The diesel engine (1), the generator (2), the radiator (5), the fuel tank (6), the air filter (7), the battery (10) and the electric control box (11) are located in the first room; The muffler (8) and the diesel oxidation catalyst (9) are located in the second chamber; The top plate (45) is provided with a ventilation window corresponding to the second chamber.

6. The internal combustion power pack according to claim 1, characterized in that: The bottom frame (3) comprises a heat exchanger mounting beam (37), a diesel engine mounting beam (35) and a generator mounting beam (36) which are arranged in parallel in sequence, and a fuel tank mounting beam with a T-shaped structure is arranged between the diesel engine mounting beam (35) and the generator mounting beam (36).

7. The internal combustion power pack according to claim 5, characterized in that: An upward water retaining plate is arranged around the opening of the ventilation window; and a rain shielding eave extending outward is arranged on the top plate (45).

8. The internal combustion power pack according to any one of claims 1 to 7, characterized in that: The bottom frame (3) also includes a bottom plate (38).

9. The internal combustion power pack according to claim 8, characterized in that: A waterproof sealing device is provided between the bottom frame (3) and the soundproof box (4); a waterproof sealing device is provided between the adjacent first side wall (41), first end wall (43), second side wall (42), and second end wall (44); and a plurality of drainage holes (383) are provided on the bottom plate (38).

10. The internal combustion power pack according to claim 8, characterized in that: A plurality of mounting fixtures are arranged on the inner side of the soundproof box (4) for laying and fixing the sound insulation and sound absorption materials.

Images