Agricultural machine and engine assembly thereof

Abstract

The utility model relates to the field of agricultural machinery, and discloses agricultural machinery and an engine assembly thereof. The agricultural machine comprises a frame and a cab installed on the frame, the engine assembly is installed on the frame and located below the cab, the engine assembly comprises an engine, an air inlet assembly, an exhaust assembly and a fuel oil assembly, the air inlet assembly, the exhaust assembly and the fuel oil assembly are installed on the engine, and the fuel oil assembly comprises a fuel oil tank. The exhaust assembly and the fuel tank are located on the two sides of the engine in the width direction respectively, and the air inlet assembly is installed on the fuel tank. Compared with the mode that the engine assembly is arranged in the hood at the front end of the vehicle body in the prior art, the space of the cab is effectively utilized to contain the engine assembly, and therefore the length of the whole vehicle can be reduced. In addition, the fuel tank provided with the air inlet assembly is arranged on one side of the engine in the width direction, and the exhaust assembly is arranged on the other side of the engine. By means of the arrangement, the gap space between the assemblies is small, and the whole is more compact.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of agricultural machinery, and in particular, relates to an agricultural machinery and an engine assembly thereof. BACKGROUND

[0002] At present, the development of agriculture in China is unbalanced and insufficient due to geographical factors. Compared with the north, the agricultural mechanization level in the south is low, and the degree of miniaturization of agricultural machinery is high. More than 80% of the total land area in the south is hilly and mountainous. At present, agricultural machinery in hilly and mountainous areas is facing the problem of "no available machinery, no good available machinery". The main crops planted in hilly and mountainous areas are orchards (citrus, pomelo, tea garden, etc.). Therefore, the overall size of agricultural machinery for hilly and mountainous areas is more limited. The existing tractors and other agricultural machinery are generally designed for relatively wide and flat plain dry land areas. Due to the size constraints of the existing engine assembly 300, as shown in FIG. 1, the engine assembly 300 is generally placed in the hood J at the front end of the vehicle body, resulting in a large design size of the vehicle length, vehicle height, and vehicle width. Therefore, the existing agricultural machinery has poor steering ability and maneuverability in narrow terrains such as hills and mountains, and it is difficult to meet the agricultural requirements of the work environment in the fields and orchards. Figure 1 Therefore, it is necessary to improve the compactness of the engine assembly and reduce the overall size of the agricultural machinery. SUMMARY

[0003] The purpose of the present application is to provide an agricultural machinery and an engine assembly thereof to improve the compactness of the engine assembly and reduce the overall size.

[0004] To achieve the above-mentioned purpose, the present application provides an engine assembly of an agricultural machinery in one aspect. The agricultural machinery includes a vehicle frame and a cab mounted on the vehicle frame. The engine assembly is mounted on the vehicle frame and located below the cab. The engine assembly includes an engine and an air intake assembly, an exhaust assembly, and a fuel assembly mounted on the engine. The fuel assembly includes a fuel tank. The exhaust assembly and the fuel tank are respectively located on both sides of the engine along the width direction. The air intake assembly is mounted on the fuel tank.

[0005] In some embodiments, the engine assembly further includes a generator and a heat dissipation assembly. The generator is arranged adjacent to the engine along the length direction and is connected in transmission. The heat dissipation assembly is mounted above the generator.

[0006] In some embodiments, an air inlet is formed on the engine. The air intake assembly includes an air cleaner and an air pre-filter mounted on the air cleaner.

[0007] The air outlet side of the air cleaner is in communication with the air inlet. The air inlet side is in communication with the outlet of the air pre-filter. The inlet of the air pre-filter is in communication with the external environment.

[0008] In some embodiments, the engine is further provided with an exhaust port, and the exhaust assembly comprises a muffler assembly, an intake end of the muffler assembly being communicated with the exhaust port of the engine through an exhaust pipe, the muffler assembly extending along a length direction.

[0009] In some embodiments, the heat dissipation assembly comprises:

[0010] a generator radiator connected with the generator through the first cooling pipeline and used for dissipating heat of the generator;

[0011] an engine radiator connected with the engine through the second cooling pipeline and used for dissipating heat of the engine.

[0012] In some embodiments, the heat dissipation assembly further comprises:

[0013] a water tank assembly, the water tank assembly comprising a first water tank and a second water tank, the first water tank and the second water tank being respectively arranged in communication with the first cooling pipeline and the second cooling pipeline; and

[0014] In some embodiments, the fan is a stepless speed electronic fan.

[0015] In some embodiments, the portions of the first cooling pipeline and the second cooling pipeline penetrating the negative pressure side each comprise a plurality of parallel pipelines.

[0016] In some embodiments, the engine is further provided with an oil inlet and an oil return port, and the fuel assembly further comprises an oil inlet pipe and an oil return pipe, the fuel tank being communicated with the oil inlet port through the oil inlet pipe, and the fuel tank being communicated with the oil return port through the oil return pipe.

[0017] Another aspect of the present application protects an agricultural machine, the agricultural machine comprising a vehicle frame, a cab and the engine assembly described above.

[0018] Through the above technical solution, the engine assembly of the agricultural machine provided by the embodiments of the present application has the following beneficial effects:

[0019] In the technical solution of the present application, the engine assembly comprises an engine, an air intake assembly, an exhaust assembly and a fuel assembly, the engine assembly being installed between the vehicle frame and the cab, compared with the prior art in which the engine assembly is arranged in the hood at the front end of the vehicle body, the present application effectively utilizes the space of the cab to accommodate the engine assembly, thereby reducing the overall length of the machine. In addition, the fuel tank provided with the air intake assembly is arranged at one side of the engine along the width direction, and the exhaust assembly is arranged at the other side. Such arrangement makes the gap space between each component small, effectively utilizes the space in the width direction of the agricultural machine, and the whole is more compact.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the following specific embodiments. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0022] Figure 1 This is a structural diagram of existing agricultural machinery;

[0023] Figure 2 This is a schematic diagram of the engine assembly according to a specific embodiment of this application;

[0024] Figure 3 For assembly Figure 2 A schematic diagram of the engine assembly in agricultural machinery.

[0025] Explanation of reference numerals in the attached figures

[0026] 100 chassis, 200 cab

[0027] 300 Engine Assembly 310 Engine

[0028] 320 Intake assembly; 321 Air filter

[0029] 322 Air pre-filter; 330 Exhaust assembly

[0030] 331 Muffler assembly; 332 Exhaust pipe

[0031] 340 Fuel assembly 341 Fuel tank

[0032] 342 Inlet pipe; 343 Return pipe

[0033] 350 Generator 360 Heat Dissipation Components

[0034] 361 Generator Radiator 361a First Cooling Pipe

[0035] 362 Engine Radiator 362a Second Cooling Pipe

[0036] 363 Water tank assembly 364 Fan

[0037] 110 Mounting bracket welding C First connecting pipe

[0038] D Second connecting pipe J Machine cover

[0039] 363a first water tank 363b second water tank DETAILED DESCRIPTION

[0040] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the present application.

[0041] The agricultural machine and its engine assembly according to the present application will be described below with reference to the accompanying drawings, wherein the agricultural machine can be a tractor or the like commonly used in orchard and farmland.

[0042] The present application discloses a new type of engine assembly of an agricultural machine, as shown in a specific embodiment, the agricultural machine comprises a vehicle frame 100 and a cab 200 mounted on the vehicle frame 100, an engine assembly 300 is mounted on the vehicle frame 100 and located below the cab 200, the engine assembly 300 comprises an engine 310 and an air intake assembly 320, an exhaust assembly 330 and a fuel assembly 340 mounted on the engine 310, the fuel assembly 340 comprises a fuel tank 341, the exhaust assembly 330 and the fuel tank 341 are respectively located on both sides of the engine 310 along the width direction, and the air intake assembly 320 is mounted on the fuel tank 341. Figure 2

[0043] Specifically, referring to Figure 2 and Figure 3 , compared with the existing method of arranging the engine assembly 300 in the hood J at the front end of the vehicle body as shown in Figure 1 , the engine assembly 300 of the present application is mounted on the vehicle frame 100 and located below the cab 200, effectively utilizing the space of the cab 200, thereby reducing the overall length of the machine, and further improving the steering ability and maneuverability of the agricultural machine in relatively narrow terrain such as hills and mountains. In addition, the air intake assembly 320 is mounted on the fuel tank 341, in order to effectively utilize the space in the width direction of the agricultural machine, the air intake assembly 320 and the exhaust assembly 330 are arranged on both sides of the engine 310 along the width direction, respectively, reducing the gap space between each component and improving the overall compactness, which is more suitable for orchard work in hilly and mountainous areas and improves work efficiency.

[0044] In addition, during installation, the cylinder block of the engine 310 is fixed on the support welding of the vehicle frame 100 by bolts, and then welded and fixed with the left and right longitudinal beams of the vehicle frame 100, and the flywheel shell bottom of the engine 310 is welded and fixed with the left and right longitudinal beams of the vehicle frame 100 by bolts.

[0045] In the present embodiment, as shown in Figure 2 ​As shown, the engine assembly 300 further comprises a generator 350 and a heat dissipation assembly 360, the generator 350 is arranged in length close to the engine 310 and is in transmission connection, and the heat dissipation assembly 360 is installed above the generator 350.

[0046] After the generator 350 is introduced, the power required by the agricultural machinery can be output through the generator 350, and the engine 310 provides power required for power generation to the generator 350. In this way, the hybrid mode using the engine 310 and the generator 350 as the power source can help to ensure that the engine 310 is in the economic fuel consumption area for a long time compared with the pure fuel engine type, thereby reducing the overall fuel consumption and being more energy-saving and environmentally friendly. In addition, the generator 350 is arranged in length close to the engine 310 and is in transmission connection, which can effectively help the agricultural machinery to accommodate the generator 350 and the heat dissipation assembly 360 in the length direction, thereby improving the overall compactness. In addition, the heat dissipation assembly 360 is installed above the generator 350, and the heat dissipation assembly 360 can be arranged close to the engine 310 and the generator 350, thereby reducing the required length of the connecting parts of the heat dissipation assembly 360, the engine 310 and the generator 350. Of course, the engine 310 is not limited to providing power only to the generator 350, but can also directly provide power to the whole machine.

[0047] In the embodiment, as shown in Figure 2 The engine 310 is provided with an air inlet, and the air inlet assembly 320 comprises an air filter 321 and an air pre-filter 322 installed on the air filter 321; wherein the air outlet side of the air filter 321 is in communication with the air inlet, the air inlet side is in communication with the outlet of the air pre-filter 322, and the inlet of the air pre-filter 322 is in communication with the external environment.

[0048] In this embodiment, the air pre-filter 322 is used to filter out the larger impurities in the ambient air, and the air filter 321 is able to further filter out the smaller impurities in the air. After the ambient air is filtered by the air pre-filter 322 and the air filter 321, the wear of the relevant parts in the engine 310, such as the cylinder, the piston and the piston ring, caused by the impurities can be reduced, thereby prolonging the service life of the engine 310. The combination of the air pre-filter 322 and the air filter 321 makes most of the impurities filtered by the air pre-filter 322 and not enter the air filter 321, thereby reducing the filtering burden and the clogging of the air filter 321 and prolonging the service life of the air filter 321. In addition, the air pre-filter 322 is arranged in the height direction, the air pre-filter 322 is integrally installed on the air filter 321, and the lower end of the air pre-filter 322 is connected to the air filter 321 arranged in the length direction. The air filter 321 is welded and installed above the fuel tank 341 by the air filter support, so that the air pre-filter 322 and the air filter 321 are compactly assembled, thereby improving the overall compactness. Furthermore, due to the integrated arrangement of the air filter 321 and the air pre-filter 322, not only the structure required for fixation can be reduced, but also the convenience of installation can be improved.

[0049] In this embodiment, as shown in Figure 2 The engine 310 is also provided with an exhaust port, and the exhaust assembly 330 includes a muffler assembly 331. The intake end of the muffler assembly 331 is connected to the exhaust port of the engine 310 through an exhaust pipe 332, and the muffler assembly 331 extends in the length direction. The muffler assembly 331 can reduce the noise generated during the exhaust process of the engine 310. Since the muffler assembly 331 is arranged in the length direction, the exhaust tail pipe connected to the exhaust end of the muffler assembly 331 can be arranged in the length direction. Compared with the vertical arrangement of the exhaust tail pipe in the prior art, the exhaust tail pipe arranged in the length direction is beneficial to reduce the height of the agricultural machinery and improve the passability of the agricultural machinery. In addition, the outer side of the muffler assembly 331 is covered with heat insulation cotton to prevent the operator from being scalded by mistake.

[0050] In this embodiment, as shown in Figure 2As shown, the heat dissipation assembly 360 includes a generator radiator 361 and an engine radiator 362; wherein the generator radiator 361 is connected with the generator 350 through a first cooling pipeline 361a and used for dissipating heat of the generator 350; the engine radiator 362 is connected with the engine 310 through a second cooling pipeline 362a and used for dissipating heat of the engine 310. In this way, the working temperature of the generator 350 and the engine 310 can be reduced, thereby improving the reliability of the engine assembly 300. Specifically, the engine 310 includes a water inlet and a water outlet, two ends of the second cooling pipeline 362a are respectively communicated with the water inlet and the water outlet, and the first cooling pipeline 361a is in thermal communication with the generator and the generator controller.

[0051] In the embodiment, as shown in Figure 2 As shown, the heat dissipation assembly 360 further includes a water tank assembly 363 and a fan 364, the water tank assembly 363 includes a first water tank 363a and a second water tank 363b, the first water tank 363a and the second water tank 363b are respectively arranged in communication with the first cooling pipeline 361a and the second cooling pipeline 362a; the first cooling pipeline 361a and the second cooling pipeline 362a both pass through the negative pressure side of the fan 364. In this way, the fan 364 can cool the first cooling pipeline 361a and the second cooling pipeline 362a at the same time, without the need to additionally arrange the fan 364 for the first cooling pipeline 361a and the second cooling pipeline 362a one by one, thereby improving the utilization rate of the fan 364 and the compactness of the engine assembly 300.

[0052] The existing tractor radiator is fixed on the front bracket and located in front of the engine 310 and dissipates heat through the engine fan. However, the engine fan usually works at a constant wind speed and cannot adjust its working state according to the working temperature of the engine 310. In the embodiment, in order to reduce the overall length, the engine fan of the engine 310 is cancelled, and the fan 364 is installed on the engine radiator 362, wherein the fan 364 is a stepless speed electronic fan 364, so that the fan 364 can flexibly set the wind speed according to the current temperature of the engine 310, thereby improving the heat dissipation energy consumption of the fan 364.

[0053] In the embodiment, the part of the first cooling pipeline 361a and the second cooling pipeline 362a penetrating the negative pressure side both includes a plurality of parallel pipelines.

[0054] Wherein, the arrangement of the parallel pipelines can greatly increase the heat exchange area of the first cooling pipeline 361a and the second cooling pipeline 362a, thereby improving the heat dissipation effect of the first cooling pipeline 361a and the second cooling pipeline 362a.

[0055] As an example, in the embodiment, the parallel pipelines of the first cooling pipeline 361a and the second cooling pipeline 362a are vertically arranged and respectively form the first heat dissipation part and the second heat dissipation part, the first heat dissipation part and the second heat dissipation part are stacked along the width direction to form an integral whole, and the integral whole is arranged on the negative pressure side of the vertically arranged fan 364, i.e. the side of the fan 364 close to the engine 310. The water tank assembly 363 is arranged above the first heat dissipation part and the second heat dissipation part. The second cooling pipeline 362a further includes a first connecting pipeline C and a second connecting pipeline D, the first connecting pipeline C includes a first water inlet rubber pipe, a water inlet steel pipe and a second water inlet rubber pipe connected in sequence, and the second connecting pipeline D includes a first water outlet rubber pipe, a water outlet steel pipe and a second water outlet rubber pipe connected in sequence. The first heat dissipation part and the second heat dissipation part are fixed on the fender mounting bracket welding 110 of the vehicle frame by bolts and rubber pads, the water inlet of the second heat dissipation part for dissipating heat of the engine 310 is connected with the water outlet of the engine 310 through the second connecting pipeline D, and the water outlet of the second heat dissipation part is connected with the water inlet of the engine 310 through the first connecting pipeline C. Similarly, the first heat dissipation part for dissipating heat of the generator 350 is connected with the electronic water pump, the motor and the motor controller through a plurality of cooling water pipes and water pipe joints.

[0056] In the embodiment, the engine 310 is further provided with an oil inlet and an oil return, and the fuel assembly 340 further includes an oil inlet pipe 342 and an oil return pipe 343, the fuel tank 341 is communicated with the oil inlet through the oil inlet pipe 342, and the fuel tank 341 is communicated with the oil return through the oil return pipe 343. In this way, the fuel tank 341 can supply fuel to the engine 310 through the oil inlet pipe 342, and the remaining fuel after the fuel nozzle sprays fuel can be returned to the fuel tank 341 through the oil return pipe 343, so as to improve the utilization efficiency of fuel.

[0057] The application discloses a novel agricultural machine, such as Figure 3 As shown in the figure, the agricultural machine in a specific embodiment includes a vehicle frame 100, a cab 200 and the above-mentioned engine assembly 300.

[0058] Specifically, the agricultural machine further includes a fender, the vehicle frame 100 includes a mounting bracket welding 110 arranged along the width direction and covering the generator 350, both ends of the mounting bracket welding are used for mounting the fender, and the heat dissipation assembly 360 is arranged close to the generator 350 by being fixed on the middle part of the mounting bracket welding 110 by bolts and rubber pads. In this way, the agricultural machine needs fewer structural fixing parts and is more compact as a whole. The agricultural machine can be a tractor, an excavator or a bulldozer.

[0059] Obviously, since the agricultural machine adopts all the embodiments of the above-mentioned engine assembly 300, the agricultural machine also has all the technical effects of the above-mentioned engine assembly 300, and thus details are not repeated here.

[0060] In the description of the application, it should be understood that the terms "first", "second" are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0061] In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrated; can be mechanically connected, can also be electrically connected or communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0062] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

Claims

1. An engine assembly for an agricultural machine, characterized by, The agricultural machine comprises a vehicle frame (100) and a cab (200) mounted on the vehicle frame (100), and an engine assembly (300) mounted on the vehicle frame (100) and located below the cab (200), wherein the engine assembly (300) comprises an engine (310), and an air intake assembly (320), an exhaust assembly (330) and a fuel assembly (340) mounted on the engine (310), the fuel assembly (340) comprises a fuel tank (341), and the exhaust assembly (330) and the fuel tank (341) are respectively located on both sides of the engine (310) along the width direction, and the air intake assembly (320) is mounted on the fuel tank (341).

2. The engine assembly of claim 1, wherein, The engine assembly (300) further comprises a generator (350) and a heat dissipation assembly (360), wherein the generator (350) is located adjacent to the engine (310) along the length direction and is drivingly connected to the engine (310), and the heat dissipation assembly (360) is mounted above the generator (350).

3. The engine assembly of claim 1, wherein, An air intake port is formed on the engine (310), and the air intake assembly (320) comprises an air filter (321) and an air pre-filter (322) mounted on the air filter (321). The air filter (321) is in communication with the air intake port at an air outlet side and with the air pre-filter (322) at an air inlet side, and the air pre-filter (322) is in communication with the external environment at an inlet side.

4. The engine assembly of claim 1, wherein, An exhaust port is formed on the engine (310), and the exhaust assembly (330) comprises a muffler assembly (331), wherein the air inlet end of the muffler assembly (331) is in communication with the exhaust port of the engine (310) through an exhaust pipe (332), and the muffler assembly (331) extends along the length direction.

5. The engine assembly of claim 2, wherein, The heat dissipation assembly (360) comprises: a generator radiator (361) connected to the generator (350) through a first cooling pipeline (361a) and used for dissipating heat of the generator (350); an engine radiator (362) connected to the engine (310) through a second cooling pipeline (362a) and used for dissipating heat of the engine (310).

6. The engine assembly of claim 5, wherein, The heat dissipation assembly (360) further comprises: a water tank assembly (363) comprising a first water tank (363a) and a second water tank (363b), wherein the first water tank (363a) and the second water tank (363b) are respectively in communication with the first cooling pipeline (361a) and the second cooling pipeline (362a); a fan (364), wherein the first cooling pipeline (361a) and the second cooling pipeline (362a) both pass through the negative pressure side of the fan (364).

7. The engine assembly of claim 6, wherein, The fan (364) is a stepless speed electronic fan (364).

8. The engine assembly of claim 6, wherein, The portions of the first cooling pipeline (361a) and the second cooling pipeline (362a) passing through the negative pressure side both comprise a plurality of parallel pipelines.

9. The engine assembly of claim 6, wherein, The engine (310) is also provided with an oil inlet and an oil return, and the fuel assembly (340) further comprises an oil inlet pipe (342) and an oil return pipe (343), the fuel tank (341) being communicated with the oil inlet through the oil inlet pipe (342), and the fuel tank (341) being communicated with the oil return through the oil return pipe (343).

10. An agricultural machine characterized by comprising: The agricultural machine comprises a frame (100), a cab (200) and the engine assembly (300) according to any one of claims 1-9.

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