Hybrid articulated tractor

Abstract

The utility model provides a hybrid articulated tractor, and relates to the field of tractor structures. The hybrid articulated tractor includes: a frame; the power part is connected with the frame; the power part is provided with an engine, a generator, a main drive motor and a gearbox; the engine is connected with the generator, and the main drive motor is connected with the gearbox; and the energy supply part comprises an oil supply assembly and a power supply assembly which are respectively connected with the engine and the main drive motor. The engine is connected with the generator, namely the generator is driven by the engine, the main drive motor is connected with the gearbox, namely the gearbox is driven by the main drive motor, and the generator is not physically connected with the main drive motor, so that decoupling of the rotating speed of the engine and the rotating speed of the gearbox can be realized, and the engine can work in an economic oil consumption area.

Description

Technical Field

[0001] The present application relates to the field of tractor structures, and in particular to a hybrid articulated tractor. Background Art

[0002] At present, medium and large horsepower tractors (especially medium and large horsepower articulated tractors) basically achieve power output through the engine and the gearbox connected to the engine. The gearbox usually adopts a power shift box or a CVT continuously variable transmission gearbox. Due to the diversity of tractor operating conditions, the operating speeds corresponding to different operating conditions vary greatly. Therefore, when facing different operating conditions, frequent gear shifting is required to change the gearbox ratio to ensure that the engine is at a relatively economical and efficient speed. Based on this, the power shift gearbox generally has more than a dozen forward gears, which leads to the existing tractors requiring a large number of clutches, which increases the difficulty of gearbox design, control and manufacturing, and makes the tractor's shifting strategy more complicated.

[0003] In addition, the working pump in the existing tractor is directly connected to the engine or connected through a gearbox. When the engine changes gear or the power output load changes, the engine speed is affected, causing the flow of the working pump to fluctuate, affecting the operating quality of the tractor. Utility Model Content

[0004] In view of this, the purpose of the present application is to provide a hybrid articulated tractor to solve the problems of existing articulated tractors that the gearbox design, control and manufacturing are difficult, the shifting strategy is also complex, and the engine speed is easily affected.

[0005] According to the above purpose, the utility model provides a hybrid articulated tractor, wherein the hybrid articulated tractor comprises:

[0006] Frame;

[0007] A power unit connected to the vehicle frame; the power unit is provided with an engine, a generator, a main drive motor and a gearbox; the engine is connected to the generator, and the main drive motor is connected to the gearbox; and

[0008] The energy supply unit includes an oil supply component and a power supply component respectively connected to the engine and the main drive motor.

[0009] Preferably, the frame includes a first frame, an articulated frame and a second frame, the first frame is hinged to the articulated frame, and the second frame is connected to the articulated frame via a slewing support so that the first frame, the articulated frame and the second frame can swing relative to each other.

[0010] Preferably, the fuel supply assembly includes a main fuel tank, a first auxiliary fuel tank and a second auxiliary fuel tank connected to the second frame; along the connection direction of the frame, the first auxiliary fuel tank and the second auxiliary fuel tank are respectively arranged on both sides of the main fuel tank.

[0011] Preferably, along the connection direction of the frame, the first end of the articulated frame is connected to the second end of the first frame through an articulated pin, and an articulated steering cylinder is also provided between the first frame and the articulated frame; the second end of the articulated frame is connected to the inner ring of the slewing support, and the main fuel tank is connected to the outer ring of the slewing support.

[0012] Preferably, the articulated frame is formed with a first through hole, the first output shaft of the gearbox passes through the first through hole and is connected to a PTO box, and the PTO box is located at an end of the main fuel tank away from the first frame.

[0013] Preferably, the articulated frame is formed with a second through hole, and the second output shaft of the gearbox passes through the second through hole and extends to the second frame to be connected to the rear axle system.

[0014] Preferably, the articulated frame is further formed with a third through hole; the housing of the main fuel tank is connected with a hydraulic valve assembly, the hydraulic valve assembly is equipped with a pipeline system, the pipeline system extends through the third through hole to the first frame and is connected to the power unit;

[0015] Along the height direction of the frame, the first through hole is located above the third through hole, and the second through hole is located below the third through hole.

[0016] Preferably, the power supply assembly includes a radiator connected to the first end of the first frame, an energy storage unit, and a thermal management unit acting on the energy storage unit; the energy storage unit is located at the bottom of the radiator and is used to supply energy to the main drive motor; along the connection direction of the frame, the thermal management unit is located at the end of the energy storage unit close to the second frame.

[0017] Preferably, along the connection direction of the frame, a first platform and a second platform are respectively arranged on both sides of the extension direction of the first frame, a ladder is arranged on the outer side of the first platform away from the first frame, and a hydraulic oil tank is arranged on the inner side of the first platform close to the first frame; a hydraulic assembly is arranged at the bottom of the hydraulic oil tank, and the distance between the bottom of the hydraulic assembly and the ground is greater than the distance between the bottom of the first frame and the ground.

[0018] Preferably, a mounting frame is provided inside the second rack, and the mounting frame is equipped with a battery, a power distribution unit, a generator control unit and a main drive motor control unit.

[0019] According to the hybrid articulated tractor of the utility model, its power unit for outputting power is provided with an engine, a generator, a main drive motor and a gearbox. The engine is connected to the generator, that is, the generator is driven by the engine, and the main drive motor is connected to the gearbox, that is, the gearbox is driven by the main drive motor, while the generator and the main drive motor are not physically connected, so that the engine speed and the gearbox speed can be decoupled, so that the engine can operate in an economical fuel consumption area; and when the load changes, the power change of the main drive motor can meet the tractor operation demand, that is, the engine speed is less affected, the working pump flow changes little, and the operation quality of the tractor is guaranteed.

[0020] In addition, the speed range of the main drive motor is relatively large, so that the gearbox does not need to shift gears under certain operating conditions, thereby reducing the number of clutch disengagements and engagements, effectively increasing the reliability of the clutch and reducing the number of clutches. That is, the gearbox in the utility model can be set as a power shift gearbox with fewer gears, which has a relatively simple design, low cost and low manufacturing difficulty. In this way, existing resources can be fully utilized and the maturity is high to avoid dependence on foreign gearboxes.

[0021] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a schematic diagram of a hybrid articulated tractor according to an embodiment of the utility model;

[0024] Figure 2 is a partial schematic diagram of a hybrid articulated tractor from a first viewing angle according to an embodiment of the utility model;

[0025] Figure 3 is a partial schematic diagram of a hybrid articulated tractor from a second viewing angle according to an embodiment of the utility model;

[0026] Figure 4 is a partial schematic diagram of a hybrid articulated tractor from a third viewing angle according to an embodiment of the utility model;

[0027] Figure 5is a partial schematic diagram of a hybrid articulated tractor from a fourth viewing angle according to an embodiment of the utility model;

[0028] Figure 6 is a partial schematic diagram of a hybrid articulated tractor from a fifth viewing angle according to an embodiment of the utility model;

[0029] Figure 7 It is a partial schematic diagram of a hybrid articulated tractor from a sixth perspective according to an embodiment of the utility model.

[0030] Icons: 11-first frame; 111-first platform; 112-second platform; 113-mounting frame; 1131-battery; 1132-power distribution unit; 1133-generator control unit; 1134-main drive motor control unit; 114-hydraulic oil tank; 115-hydraulic assembly; 116-radiator; 117-energy storage unit; 118-thermal management unit; 12-second frame; 121-first auxiliary fuel tank; 122-second auxiliary fuel tank; 123-main fuel tank; 124-PTO box; 125-hydraulic valve group; 126-pipeline system; 127-power external interface; 13-articulated frame; 132-articulated steering cylinder; 14-engine; 141-cooling pump; 142-working pump; 15-generator; 16-main drive motor; 17-gearbox. DETAILED DESCRIPTION

[0031] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.

[0032] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.

[0033] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.

[0034] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.

[0035] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.

[0036] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.

[0037] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.

[0038] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.

[0039] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.

[0040] According to the utility model, a hybrid articulated tractor is provided, such as Figures 1 to 7 As shown, the hybrid articulated tractor in this embodiment includes components such as a frame, a power unit and an energy supply unit, and the power unit and the energy supply unit are both connected to the frame. In the following, the specific connection relationship and position relationship of the above-mentioned parts of the hybrid articulated tractor according to the utility model will be described in detail.

[0041] In this embodiment, if Figure 1 As shown, the frame is used to stably connect the following components in the tractor to facilitate the stability of the overall structure of the tractor. Specifically, the frame includes a first frame 11, an articulated frame 13 and a second frame 12 connected in sequence, the first frame 11 is articulated with the articulated frame 13, and the second frame 12 is connected with the articulated frame 13 through a slewing bearing, so that the first frame 11, the articulated frame 13 and the second frame 12 can swing relative to each other, that is, the first frame 11 and the articulated frame 13 can swing relative to each other, the second frame 12 and the articulated frame 13 can swing relative to each other, and thus the first frame 11 and the second frame 12 can also swing relative to each other. It should be noted that, in order to more clearly and accurately describe the positions and assembly relationships of the various components in the tractor, the connection direction of the first frame 11, the articulated frame 13 and the second frame 12 in the present embodiment (i.e., the arrangement direction of the three) is set to be the length direction of the tractor (i.e., the travel direction of the tractor), and further, the first frame 11 is closer to the front of the tractor than the second frame 12.

[0042] More specifically, along the connection direction of the frame, the first end of the articulated frame 13 (close to the front of the vehicle) is connected to the second end of the first frame 11 through an articulated pin, and an articulated steering cylinder 132 is also provided between the first frame 11 and the articulated frame 13, that is, the telescopic end of the articulated steering cylinder 132 is connected to the first frame 11, and the fixed end of the articulated steering cylinder 132 is connected to the articulated frame 13; the second end of the articulated frame 13 (close to the rear of the vehicle) is connected to the inner ring of the slewing support, and the main fuel tank 123 connected to the second frame 12 is connected to the outer ring of the slewing support. The traction rod of the articulated steering cylinder 132 is provided at the bottom of the main fuel tank 123. When the hydraulic system of the whole machine drives the articulated steering cylinder 132 to extend and retract, it can drive the articulated frame 13 to rotate around the center of the rear end pin shaft hole of the first frame 11. At the same time, through the slewing support connected to the articulated frame 13, it can drive the main fuel tank 123 (and the components directly or indirectly connected to it) to rotate around the center of the rear end pin shaft hole of the first frame 11, thereby realizing the articulated steering of the first frame 11 and the main fuel tank 123 (equivalent to the second frame 12).

[0043] When the working ground of the tractor is uneven or the front and rear axle wheels are not in the same plane, the second frame 12 and the related components assembled and connected thereto are relatively rotated and swung through the slewing support and the articulated frame 13, thereby realizing the relative swing of the second frame 12 (and related components) and the first frame 11 (and related components), which can increase the contact degree between the tire and the ground, thereby increasing the adhesion of the tire. In addition, it can also reduce the load and torsion of the second frame 12 and its related components caused by the working load, so as to improve the overall stability and reliability of the tractor.

[0044] In this embodiment, the power unit is connected to the first frame 11. Specifically, the power unit is provided with an engine 14, a generator 15, a main drive motor 16 and a gearbox 17, all of which are arranged in the framework of the first frame 11. The engine 14 is used to drive the generator 15 to generate electricity, so that the electric energy output by the generator 15 can be transmitted to the main drive motor control unit 1134 through a high-voltage wire harness, and the main drive motor 16 is supplied with energy according to the control requirements of the main drive motor control unit 1134, thereby further driving the gearbox 17 to work.

[0045] Specifically, the engine 14 is connected to the generator 15 so that the generator 15 can be driven by the engine 14, and after the two are connected, the engine 14 is located above the generator 15 and close to the end of the tractor head; in addition, the engine 14 is also equipped with a working pump 142 and a cooling pump 141, and the working pump 142 and the cooling pump 141 are located above the generator 15 and close to the end of the tractor tail.

[0046] It should be noted that the connection method between the engine 14 and the generator 15 is not fixed and belongs to the prior art. For example, the connection between the two can be achieved by a mechanical coupling or an electromagnetic synchronizer in the prior art, so it will not be described in detail, as long as the technical effect of driving the generator 15 by the engine 14 can be achieved. Similarly, the specific assembly method of the working pump 142 and the heat dissipation pump 141 and the engine 14 will not be described in detail.

[0047] More specifically, the main drive motor 16 in this embodiment is connected to the gearbox 17 (the two can be directly connected or connected through a coupling) so that the gearbox 17 can be driven by the main drive motor 16. The main drive motor 16 is located at one end of the generator 15 close to the second frame 12, and the gearbox 17 is located at one end of the main drive motor 16 away from the generator 15, but the main drive motor 16 is not physically connected to the generator 15, so that the speed of the engine 14 can be decoupled from the speed of the gearbox 17, so that the engine 14 can operate in an economical fuel consumption area. When the load changes, the power change of the main drive motor 16 can meet the tractor operation requirements, that is, the speed of the engine 14 is less affected, the flow of the working pump 142 changes little, and the operation quality of the tractor is guaranteed.

[0048] In addition, the speed range of the main drive motor 16 is relatively large, so that the gearbox 17 does not need to shift gears under certain operating conditions, thereby reducing the number of clutch disengagements and engagements, effectively increasing the reliability of the clutch and reducing the number of clutches. That is, the gearbox 17 in the utility model can be set as a power shift gearbox 17 with fewer gears, which has a relatively simple design, low cost and low manufacturing difficulty. In this way, existing resources can be fully utilized and the maturity is high to avoid dependence on foreign gearboxes 17.

[0049] In this embodiment, the energy supply unit includes a power supply component. Figures 1 to 7 As shown, the power supply assembly includes a radiator 116 connected to the first end of the first frame 11 (near the front of the vehicle), an energy storage unit 117, and a thermal management unit 118 acting on the energy storage unit 117, the thermal management unit 118 is used to control the temperature in the energy storage unit 117, so as to improve the performance and safety of the energy storage unit 117. When the main drive motor 16 encounters a sudden load, in addition to the engine 14 supplying energy to the main drive motor 16, the energy storage unit 117 can also supply energy to the main drive motor 16 through a high-voltage wiring harness to improve the load dynamic responsiveness of the main drive motor 16; and when the energy required by the main drive motor 16 is lower than the current output of the generator 15, the excess energy can be stored in the energy storage unit 117.

[0050] The radiator 116 is arranged vertically, and the energy storage unit 117 is located at the bottom of the radiator 116 and is used to supply energy to the main drive motor 16 (that is, when the tractor encounters a sudden load change during operation and the generator 15 does not respond in time, the energy storage unit 117 can supply energy to the main drive motor 16 to improve the load response characteristics); in addition, along the connection direction of the frame, the thermal management unit 118 is located at the end of the energy storage unit 117 close to the second frame 12.

[0051] Furthermore, if Figure 1 As shown, along the connection direction of the frame, the first frame 111 and the second frame 112 are respectively arranged on both sides of the extension direction of the first frame 11 (that is, the two are distributed at both ends of the width direction of the first frame 11), and the first frame 111 and the second frame 112 are closer to the second frame 12 than the front axle and the front wheel of the tractor. Furthermore, a ladder is arranged on the outside of the first frame 111 away from the first frame 11, and a hydraulic oil tank 114 is arranged on the inside of the first frame 111 close to the first frame 111. A hydraulic component 115 (such as an emergency steering pump and a priority valve, etc.) is arranged at the bottom of the hydraulic oil tank 114. The distance between the bottom of the hydraulic component 115 and the ground must be greater than the distance between the bottom of the first frame 11 and the ground, so as to protect the hydraulic component 115. In addition, the second rack 112 is provided with a mounting frame 113 (frame structure) inside, and the mounting frame 113 is sequentially equipped with a battery 1131 (which serves as the starting power supply of the whole machine), a power distribution unit 1132 (which is used for high-voltage power distribution and energy supply to other modules, and can also provide overload protection), a generator control unit 1133 and a main drive motor control unit 1134, but the assembly order of the four is not fixed. In this way, the power of the main drive motor 16 and the generator 15 can be controlled respectively by the main drive motor control unit 1134 and the generator control unit 1133 to achieve load response.

[0052] In addition, the energy supply unit in this embodiment also includes an oil supply assembly connected to the engine 14. Figure 1As shown, the fuel supply assembly includes a main fuel tank 123 connected to the second frame 12, a first auxiliary fuel tank 121 and a second auxiliary fuel tank 122; along the connection direction of the frame, the first auxiliary fuel tank 121 and the second auxiliary fuel tank 122 are respectively arranged on both sides of the main fuel tank 123. In this way, the total volume of the fuel tank of the tractor is increased, thereby effectively improving the operating endurance of the tractor. In addition, when the first auxiliary fuel tank 121 or the second auxiliary fuel tank 122 is abnormally damaged or the operating conditions have restrictions on the weight of the whole machine, the auxiliary fuel tank can be used without fuel (that is, only the main fuel tank 123 works); and when the main fuel tank 123 is damaged and leaks due to abnormal impact stress, fatigue, etc., the first auxiliary fuel tank 121 and / or the second auxiliary fuel tank 122 can be used to supply fuel to ensure that the whole machine can still work normally for a certain period of time, that is, the redundant safety of fuel supply is effectively improved, thereby ensuring that the whole machine can be transferred to the maintenance area.

[0053] Furthermore, in this embodiment, the first auxiliary fuel tank 121 or the second auxiliary fuel tank 122 is filled with fuel with a low freezing point, and the other two fuel tanks are filled with fuel with a high freezing point. In this way, when the tractor works in a severely cold environment, the low freezing point fuel can be used for fuel supply first, and after the engine 14 has worked for a period of time, the high freezing point fuel can be used for fuel supply, so as to solve the problem that the tractor can only use low freezing point fuel to work in severely cold conditions (if only one fuel tank is set), resulting in high costs.

[0054] In this embodiment, the articulated frame 13 is formed with a first through hole, a second through hole and a third through hole. Along the height direction of the frame, the first through hole is located above the third through hole, and the second through hole is located below the third through hole. The first output shaft of the gearbox 17 passes through the first through hole and is connected to the PTO box 124 of the tractor through a transmission shaft. The PTO box 124 is located at the end of the main fuel tank 123 away from the first frame 11. The second output shaft of the gearbox 17 passes through the second through hole and extends to the second frame 12 to be connected to the rear axle system of the tractor through the transmission shaft, so that power can be transmitted to the rear axle system; at the same time, the third output shaft of the gearbox 17 is used to transmit power to the front axle system.

[0055] In addition, the housing of the main fuel tank 123 is also connected to a hydraulic valve group 125, and the hydraulic valve group 125 is equipped with a pipeline system 126, and the pipeline system 126 extends through the third through hole to the first frame 11 and is connected to the power unit. Furthermore, the relevant electrical circuits of the main fuel tank 123 are also extended through the third through hole to the first frame 11, and then connected to the relevant components. The main fuel tank 123 is provided with a power external interface 127, which extends to the first frame 11 through the third through hole through a wiring harness, and is connected to the power distribution unit 1132, so that power can be supplied to the entire machine through the power distribution unit 1132 and the power external interface 127.

[0056] The multiple through holes of the articulated frame 13 make the layout of the pipelines and wiring harnesses of the tractor more reasonable and compact.

[0057] According to the hybrid articulated tractor of the utility model as described above, its power unit for outputting power is provided with an engine 14, a generator 15, a main drive motor 16 and a gearbox 17, the engine 14 is connected to the generator 15, that is, the generator 15 is driven by the engine 14, the main drive motor 16 is connected to the gearbox 17, that is, the gearbox 17 is driven by the main drive motor 16, and the generator 15 and the main drive motor 16 are not physically connected, so that the speed of the engine 14 and the speed of the gearbox 17 can be decoupled, so that the engine 14 can work in an economical fuel consumption area; and when the load changes, the power change of the main drive motor 16 can meet the tractor operation demand, that is, the speed of the engine 14 is less affected, the flow change of the working pump 142 is small, and the operation quality of the tractor is guaranteed.

[0058] In addition, the speed range of the main drive motor 16 is relatively large, so that the gearbox 17 does not need to shift gears under certain operating conditions, thereby reducing the number of clutch disengagements and engagements, effectively increasing the reliability of the clutch and reducing the number of clutches. That is, the gearbox 17 in the utility model can be set as a power shift gearbox 17 with fewer gears, which has a relatively simple design, low cost and low manufacturing difficulty. In this way, existing resources can be fully utilized and the maturity is high to avoid dependence on foreign gearboxes 17.

[0059] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be described in the protection scope of the claims.

Claims

1. A hybrid articulated tractor, characterized in that: The hybrid articulated tractor comprises: Frame; A power unit connected to the vehicle frame; the power unit is provided with an engine, a generator, a main drive motor and a gearbox; the engine is connected to the generator, and the main drive motor is connected to the gearbox; and The energy supply unit includes an oil supply component and a power supply component respectively connected to the engine and the main drive motor.

2. The hybrid articulated tractor according to claim 1, characterized in that: The frame includes a first frame, an articulated frame and a second frame, the first frame is articulated to the articulated frame, and the second frame is connected to the articulated frame via a slewing support, so that the first frame, the articulated frame and the second frame can swing relative to each other.

3. The hybrid articulated tractor according to claim 2, characterized in that: The fuel supply assembly includes a main fuel tank, a first auxiliary fuel tank and a second auxiliary fuel tank connected to the second frame; along the connection direction of the frame, the first auxiliary fuel tank and the second auxiliary fuel tank are respectively arranged on both sides of the main fuel tank.

4. The hybrid articulated tractor according to claim 3, characterized in that: Along the connection direction of the frame, the first end of the articulated frame is connected to the second end of the first frame through an articulated pin, and an articulated steering cylinder is also arranged between the first frame and the articulated frame; the second end of the articulated frame is connected to the inner ring of the slewing support, and the main fuel tank is connected to the outer ring of the slewing support.

5. The hybrid articulated tractor according to claim 3, characterized in that: The articulated frame is formed with a first through hole, and the first output shaft of the gearbox passes through the first through hole and is connected to a PTO box, and the PTO box is located at an end of the main fuel tank away from the first frame.

6. The hybrid articulated tractor according to claim 5, characterized in that: The articulated frame is formed with a second through hole, and the second output shaft of the gearbox passes through the second through hole and extends to the second frame to be connected with the rear axle system.

7. The hybrid articulated tractor according to claim 6, characterized in that: The articulated frame is also formed with a third through hole; the housing of the main fuel tank is connected with a hydraulic valve assembly, the hydraulic valve assembly is equipped with a pipeline system, the pipeline system extends through the third through hole to the first frame and is connected to the power unit; Along the height direction of the frame, the first through hole is located above the third through hole, and the second through hole is located below the third through hole.

8. The hybrid articulated tractor according to claim 2, characterized in that: The power supply assembly includes a radiator connected to the first end of the first frame, an energy storage unit, and a thermal management unit acting on the energy storage unit; the energy storage unit is located at the bottom of the radiator and is used to supply energy to the main drive motor; along the connection direction of the frame, the thermal management unit is located at the end of the energy storage unit close to the second frame.

9. The hybrid articulated tractor according to claim 2, characterized in that: Along the connection direction of the frame, a first platform and a second platform are respectively arranged on both sides of the extension direction of the first frame, a ladder is arranged on the outer side of the first platform away from the first frame, and a hydraulic oil tank is arranged on the inner side of the first platform close to the first frame; a hydraulic assembly is arranged at the bottom of the hydraulic oil tank, and the distance between the bottom of the hydraulic assembly and the ground is greater than the distance between the bottom of the first frame and the ground.

10. The hybrid articulated tractor according to claim 9, characterized in that: A mounting frame is provided inside the second rack, and the mounting frame is equipped with a battery, a power distribution unit, a generator control unit and a main drive motor control unit.

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