Chassis structure of three-wheel high-clearance tractor and three-wheel tractor with chassis structure

Abstract

The utility model relates to a chassis structure of a three-wheel high-clearance tractor and the three-wheel tractor. The chassis structure comprises a chassis, a steering mechanism, a door-shaped front fork arm, an engine assembly, a gearbox assembly, a rear axle assembly, a left final transmission assembly and a right final transmission assembly, the steering mechanism is installed on the front portion of the chassis, the front fork arm is connected with the steering mechanism, a front guide wheel assembly is installed in the front fork arm, and a rear guide wheel assembly is installed in the rear fork arm. The input end of the gearbox assembly is connected with the output end of the engine assembly, the output end of the gearbox assembly is connected with the input end of the rear axle assembly, the left end and the right end of the rear axle assembly are provided with a left output shaft and a right output shaft respectively, the left output shaft is connected with an input shaft of the left final transmission assembly, and the right output shaft is connected with an input shaft of the right final transmission assembly. The left final transmission assembly and the right final transmission assembly are each provided with an output shaft lower than an input shaft of the left final transmission assembly and an output shaft of the right final transmission assembly, and the output shafts of the left final transmission assembly and the right final transmission assembly are each connected with a rear wheel assembly. The utility model has the advantages of high ground clearance and capability of meeting the steering operation requirement of small land parcels in fields.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery equipment technical field, especially a three -wheel high ground clearance tractor chassis structure and have its three -wheel tractor. BACKGROUND

[0002] The development of agricultural mechanization is an important part of agricultural progress, and tractors, as an important agricultural machinery, are widely used in farmland cultivation, transportation, construction, engineering and other fields. According to different working conditions, tractors also have diversity and uniqueness. Three-wheel high ground clearance products are mainly used for cotton planting operation in small plots, and can also be used for planting in large plots. When using three-wheel tractors to manage crops such as cotton fields and grains, some countries plant crops in small plot fields, and there is no vehicle turning space. At this time, the three-wheel high ground clearance tractor meets the requirements of such operation. The three-wheel tractor has small turning radius and little damage to crops. It can flexibly turn at the head of the field, cross the crops in the small plot field without turning space, and perform middle tillage management operations such as spraying, weeding and fertilizing. When the crops are mature, the three-wheel high ground clearance tractor can also cross the crops for field loading and transportation.

[0003] Central Asia is an important cotton producing area with sufficient sunlight and large diurnal temperature difference. When spraying, weeding and other middle tillage operations are performed on cotton fields and other crops, the existing conventional four-wheel tractors cannot meet the high ground clearance field small plot turning requirements.

[0004] Therefore, it is necessary to develop a three-wheel high ground clearance tractor chassis structure and a three-wheel tractor with the same to overcome the above technical problems. INVENTION CONTENTS

[0005] The utility model solves the technical problem to provide a three -wheel high ground clearance tractor chassis structure and have its three -wheel tractor, effectively overcome the defects of prior art.

[0006] The technical scheme for solving the above technical problem of the utility model is as follows:

[0007] The three-wheel high ground clearance tractor chassis structure comprises a chassis, a steering mechanism, a door-shaped front fork arm, an engine assembly, a gearbox assembly, a rear axle assembly, a left final drive assembly and a right final drive assembly, the steering mechanism is arranged at the front part of the chassis, the front fork arm is arranged below the front part of the chassis and is connected with the steering mechanism, a front guide wheel assembly is arranged in the front fork arm, the engine assembly is arranged in the middle part of the chassis, the gearbox assembly and the rear axle assembly are sequentially arranged behind the engine assembly and are respectively assembled with the chassis, the input end of the gearbox assembly is in transmission connection with the output end of the engine assembly, the output end of the gearbox assembly is in transmission connection with the input end of the rear axle assembly, the left end and the right end of the rear axle assembly are respectively provided with a left output shaft and a right output shaft which are connected with the internal transmission structure, the left final drive assembly and the right final drive assembly are respectively arranged at the left end and the right end of the rear axle assembly, the left output shaft is connected with the input shaft of the left final drive assembly, and the right output shaft is connected with the input shaft of the right final drive assembly, the left final drive assembly and the right final drive assembly are respectively provided with an output shaft which is lower than the input shaft, and the output shaft of the left final drive assembly and the output shaft of the right final drive assembly are respectively connected with a rear wheel assembly.

[0008] On the basis of the above technical scheme, the utility model further can make improvement as follows.

[0009] Further, the steering mechanism comprises a slewing bearing and two groups of hydraulic telescopic mechanisms, the lower end of the rotating disc surface of the slewing bearing is fixedly connected with the upper end of the front fork arm, the upper end of the rotating disc surface of the slewing bearing is symmetrically provided with a shaft head, the two groups of hydraulic telescopic mechanisms are respectively arranged at the upper end of the chassis, and the telescopic ends of the two groups of hydraulic telescopic mechanisms are respectively movably connected with the two shaft heads in one-to-one correspondence.

[0010] Further, the hydraulic telescopic mechanism is a hydraulic oil cylinder.

[0011] Further, the rear end of the chassis is provided with a loading connection assembly for hanging a machine tool.

[0012] Further, a left brake is assembled between the left final drive assembly and the left end of the rear axle assembly, and the left brake is used for braking the left output shaft.

[0013] Further, a right brake is assembled between the right final drive assembly and the right end of the rear axle assembly, and the right brake is used for braking the right output shaft.

[0014] Further, the left final transmission assembly comprises a left half axle housing and a left side reduction gear box, one end of the left half axle housing is assembled with the housing of the corresponding left brake, the left side reduction gear box is at the other end of the left half axle housing, a left input half axle is rotatably arranged in the left half axle housing, two ends of the left input half axle are connected with the left output shaft and the input shaft of the left side reduction gear box respectively, the left side reduction gear box has a left output shaft with a height lower than the left side reduction gear box, and the left output shaft of the left side reduction gear box is connected with the rear wheel assembly.

[0015] Further, the right final transmission assembly comprises a right half axle housing and a right side reduction gear box, one end of the right half axle housing is assembled with the housing of the corresponding right brake, the right side reduction gear box is at the other end of the right half axle housing, a right input half axle is rotatably arranged in the right half axle housing, two ends of the right input half axle are connected with the right output shaft and the input shaft of the right side reduction gear box respectively, the right side reduction gear box has a right output shaft with a height lower than the right side reduction gear box, and the right output shaft of the right side reduction gear box is connected with the rear wheel assembly.

[0016] Further, the rear axle assembly is provided with a power output shaft assembly connected with the internal transmission structure at the rear end of the rear axle assembly.

[0017] The three-wheeled high-ground-clearance tractor chassis structure has the advantages of reasonable structure design, high ground clearance, small steering radius, and can meet the requirements of field small land steering operation. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic view of the three-wheeled high-ground-clearance tractor chassis structure of the utility model;

[0019] Figure 2 It is an assembly structure diagram of the front fork arm and the steering mechanism in the three-wheeled high-ground-clearance tractor chassis structure of the utility model;

[0020] Figure 3 It is a structure schematic view of the left final transmission assembly in the three-wheeled high-ground-clearance tractor chassis structure of the utility model;

[0021] Figure 4 It is a structure schematic view of the right final transmission assembly in the three-wheeled high-ground-clearance tractor chassis structure of the utility model;

[0022] Figure 5 It is a whole structure view of the three-wheeled tractor of the utility model;

[0023] Figure 6 It is a vehicle body structure view of the three-wheeled tractor of the utility model;

[0024] Figure 7 It is a structure view of the hydraulic system of the three-wheeled tractor of the utility model;

[0025] Figure 8 This is a structural diagram of the electrical part of the three-wheel tractor of the present utility model;

[0026] Figure 9 This is a structural diagram of the power part of the three-wheel tractor of the present utility model;

[0027] Figure 10 It is a structural schematic diagram of the loading connection assembly of the three-wheel tractor of the present utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0029] 1. Chassis; 2. Steering mechanism; 3. Front fork arm; 4. Engine assembly; 5. Gearbox assembly; 6. Rear axle assembly; 7. Left final drive assembly; 8. Right final drive assembly; 9. Front guide wheel assembly; 10. Rear wheel assembly; 71. Left half-shaft housing; 72. Left reduction gearbox; 73. Left input half-shaft; 80. Power take-off shaft assembly; 90. Left brake; 100. Right brake; 211. Shaft head. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] Example 1

[0032] like Figure 1 、 2The three-wheel high-ground-clearance tractor chassis structure of the embodiment includes a chassis 1, a steering mechanism 2, a door-shaped front fork arm 3, an engine assembly 4, a gearbox assembly 5, a rear axle assembly 6, a left final drive assembly 7, and a right final drive assembly 8. The steering mechanism 2 is arranged at the front of the chassis 1. The front fork arm 3 is arranged below the front of the chassis 1 and is connected to the steering mechanism 2. The front fork arm 3 is provided with a front guide wheel assembly 9. The engine assembly 4 is arranged in the middle of the chassis 1. The gearbox assembly 5 and the rear axle assembly 6 are sequentially arranged behind the engine assembly 4 and are respectively connected to the chassis 1. The input end of the gearbox assembly 5 is in transmission connection with the output end of the engine assembly 4. The output end of the gearbox assembly 5 is in transmission connection with the input end of the rear axle assembly 6. The left output shaft and the right output shaft, which are connected to the internal transmission structure of the rear axle assembly 6, are respectively arranged at the left end and the right end of the rear axle assembly 6. The left final drive assembly 7 and the right final drive assembly 8 are respectively arranged at the left end and the right end of the rear axle assembly 6. The left output shaft is connected to the input shaft of the left final drive assembly 7. The right output shaft is connected to the input shaft of the right final drive assembly 8. The left final drive assembly 7 and the right final drive assembly 8 are respectively provided with output shafts with a height lower than that of the input shafts. The output shafts of the left final drive assembly 7 and the right final drive assembly 8 are respectively connected to a rear wheel assembly 10.

[0033] In the three-wheel high-ground-clearance tractor chassis structure of the embodiment, the front guide wheel assembly 9 is arranged in the front fork arm 3 at the lower end of the chassis 1 and is connected to the steering mechanism 2. The front guide wheel assembly 9 has a small wheel body and a high ground clearance. The front guide wheel assembly 9 is left-right deflected through the steering mechanism 2. The steering angle can achieve a single-side steering of about 60 degrees. The minimum single-side steering radius can satisfy about 3.3 meters, which can meet the steering requirements of small plots and effectively avoid seedling pressing. At the same time, the output shafts of the left final drive assembly 7 and the right final drive assembly 8 have a height lower than that of the input shafts, that is, the output shafts have a height difference with the left output shaft and the right output shaft of the rear axle assembly. Therefore, the ground clearance of the rear axle is increased. The wheel track of the rear wheel can be adjusted by increasing the sleeve at the output shaft to meet the requirements of customers for different wheel tracks.

[0034] In the embodiment, the steering mechanism 2 comprises a slewing bearing and two sets of hydraulic telescopic mechanisms. The lower end of the slewing bearing is connected to the upper end of the front fork arm 3. The upper end of the slewing bearing is provided with two shaft heads 211 symmetrically. The two sets of hydraulic telescopic mechanisms are respectively arranged on the upper end of the front part of the chassis 1. The telescopic ends of the two sets of hydraulic telescopic mechanisms are respectively connected to the two shaft heads 211. The ends of the two sets of hydraulic telescopic mechanisms are connected to the upper end of the chassis 1 through joint bearings. The telescopic ends of the two sets of hydraulic telescopic mechanisms are connected to the shaft heads 211 through joint bearings. The two sets of hydraulic telescopic mechanisms are distributed symmetrically. The telescopic movement of the two sets of hydraulic telescopic mechanisms can be transmitted to the slewing bearing through the shaft heads 211, so as to drive the front fork arm 3 to steer and realize the steering of 60 degrees on one side.

[0035] In the embodiment, the hydraulic telescopic mechanism is a hydraulic oil cylinder.

[0036] In the embodiment, the rear end of the chassis 1 is provided with a loading connection assembly G for connecting a machine tool.

[0037] As shown in Figure 10 , the loading connection assembly G mainly comprises a suspension mechanism assembly 47, a towing device assembly 48 and a rotatable traction plate assembly 49. The three components are all parts of a conventional tractor (or parts adjusted in size according to the parts of a conventional tractor). The structures and connection relationships of the three components are not described herein. The three components are mainly used for connecting various machine tools to meet various operation requirements.

[0038] In the embodiment, a left brake 90 is arranged between the left final drive assembly 7 and the left end of the rear axle assembly 6. The left brake 90 is used for braking the left output shaft. The left brake 90 can brake the left output shaft, so as to brake the left rear wheel assembly 10.

[0039] In the embodiment, a right brake 100 is arranged between the right final drive assembly 8 and the right end of the rear axle assembly 6. The right brake 100 is used for braking the right output shaft. The right brake 100 can brake the right output shaft, so as to brake the right rear wheel assembly 10.

[0040] In the embodiment, as shown in Figure 3As shown in the figure, the left final drive assembly 7 includes a left axle housing 71 and a left side reduction gear box 72. One end of the left axle housing 71 is assembled with the housing of the corresponding left brake 90, and the left side reduction gear box 72 is at the other end of the left axle housing 71. The left input axle 73 is rotatably arranged in the left axle housing 71. The two ends of the left input axle 73 are respectively connected with the left output shaft and the input shaft of the left side reduction gear box 72. The left side reduction gear box 72 has a left output shaft (denoted by A in the figure) which is lower in height. The left output shaft of the left side reduction gear box 72 is connected with the rear wheel assembly 10. The left input axle 73 in the left axle housing 71 and the output shaft of the left side reduction gear box 72 are arranged in parallel and spaced apart in height, so as to form a height difference and realize the ground clearance increase of the rear axle. The left side reduction gear box 72 is a conventional gear reduction box structure, and will not be described herein.

[0041] As shown in the figure, Figure 4 In this embodiment, the right final drive assembly 8 includes a right axle housing 81 and a right side reduction gear box 82. One end of the right axle housing 81 is assembled with the housing of the corresponding right brake 100, and the right side reduction gear box 82 is at the other end of the right axle housing 81. The right input axle 83 is rotatably arranged in the right axle housing 81. The two ends of the right input axle 83 are respectively connected with the right output shaft and the input shaft of the right side reduction gear box 82. The right side reduction gear box 82 has a right output shaft (denoted by B in the figure) which is lower in height. The right output shaft of the right side reduction gear box 82 is connected with the rear wheel assembly 10. The right input axle 83 in the right axle housing 81 and the output shaft of the right side reduction gear box 82 are arranged in parallel and spaced apart in height, so as to form a height difference and realize the ground clearance increase of the rear axle. The right side reduction gear box 82 is a conventional gear reduction box structure, and will not be described herein. The left output shaft and the right output shaft are at the same height.

[0042] In this embodiment, the rear axle assembly 6 is provided at the rear end with a power output shaft assembly 80 connected with the internal transmission structure. The power output shaft assembly 80 is fixed to the rear end of the rear axle assembly 6 by bolts, and is used to provide power for the connected implements.

[0043] Embodiment 2

[0044] As shown in the figure, Figure 5 The three-wheeled tractor of this embodiment includes the three-wheeled high-ground-clearance tractor chassis structure in Embodiment 1.

[0045] The three-wheeled tractor of this embodiment is arranged above the three-wheeled high-ground-clearance tractor chassis structure with a vehicle body, a hydraulic system, an electrical part and a power part. The above-mentioned parts are all existing accessories, or accessories which are adjusted in parameters according to the three-wheeled tractor on the basis of the existing accessories.

[0046] Specifically, asFigure 6 As shown, the body part B mainly includes a hood assembly 26, a cab assembly 27, a steering wheel and steering column assembly 28, an interior assembly 29, a seat assembly 30, a rear fender assembly 31, a rear connection assembly 32, a dashboard assembly 33 and a front connection assembly 34. The hood assembly 26 is fixed to the engine assembly 4 through a bracket, the front connecting assembly 34 and the rear connecting assembly 32 are installed on the chassis 1, the cab assembly 27 is connected to the front and rear connecting assemblies, and there are vibration-damping pads between the cab and the front and rear connections, which can effectively reduce the vibration in the cab and improve comfort; the steering wheel and steering column assembly 28 is fixed to the cab front assembly by bolts; the interior assembly 29 is distributed inside the cab, and plays the role of decoration, sound insulation and noise reduction; the seat assembly 30 is fixed to the floor of the cab by bolts; the rear fender assembly 31 is fixed to both sides of the rear of the cab, and plays the role of decorative mudguard and can be used as a carrier for installing lamps; the instrument panel assembly 33 is located on the front side of the interior of the cab, and plays the role of decoration and sound insulation and can be used as a carrier for installing electrical instruments and rocker switches.

[0047] like Figure 8 As shown, electrical component C primarily includes the headlight assembly 39, front handrail light assembly 40, instrument cluster assembly 41, air conditioning system assembly 42, rotating warning light assembly 43, taillight assembly 44, rear taillight assembly 45, and battery assembly 46. The headlight assembly 39 is mounted on the front end of the hood assembly 26. The front handrail light assembly 40 and its bracket are fixed to the front pillar of the cab assembly 27. The instrument cluster assembly 41 is bolted to the instrument panel assembly 33. The air conditioning system assembly 42 is fixed to the top rear end of the cab assembly 27, with its piping connected to the engine assembly 25 along the interior of the cab. The rotating warning light assembly 43 and rear light assembly 44 are bolted to the rear pillar of the cab assembly 27. The rear taillight assembly 45 is mounted on the rear end of the rear fender assembly 31. The battery assembly 46 is bolted to the right side panel of the chassis 1.

[0048] like Figure 7 As shown, the hydraulic section D uses independent oil and is highly reliable. Its main components include an oil pump, oil pipe, and oil filter assembly 35, a fully hydraulic steering assembly 36, a hydraulic system assembly 37, and a lift assembly 38. The oil pump, oil pipe, and oil filter assembly 35 is located on the right side of the chassis 1. The fully hydraulic steering assembly 36 is located near the steering wheel assembly in the cab. Left and right oil pipelines run from the steering gear to the front hydraulic telescopic mechanism (hydraulic cylinder). The hydraulic cylinder pushes and pulls to rotate the steering bearings, steering the front guide wheel assembly 9. The hydraulic system assembly 37 is located at the rear end of the tractor, surrounding the loading connection assembly. Two rear-mounted output oil circuits and one side-mounted output oil circuit are fixed to the front connection assembly 34, providing output power to the front implement. The lift assembly 38 is located at the rear end of the chassis 1.

[0049] As Figure 9 shown, the power part E includes water tank pad assembly 17, air intake system assembly 18, heat dissipation system assembly 19, exhaust system assembly 20, hand throttle control assembly 21, flameout pull wire assembly 22, foot throttle control assembly 23, fuel tank and its support assembly 24 and engine assembly 25. The water tank pad assembly 17 and the heat dissipation system assembly 19 are fixed on the front upper part of the chassis 1, and the air intake system assembly 18 with built-in dry air filter is installed at the front end of the heat dissipation system assembly 19. The exhaust system assembly 20 is an upper exhaust, located on the right side of the engine assembly 4, and is fixed on the cab through a pull rod. The front end of the hand throttle control assembly 21, the flameout pull wire assembly 22 and the foot throttle control assembly 23 is connected to the engine, and the rear end is fixed in the cab. The fuel tank and its support assembly 24 is fixed by bolts on both sides of the transmission module A transmission case assembly 5.

[0050] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0051] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0052] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of the present application, 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 present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or features of different embodiments or examples described in the present application without contradiction.

[0055] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A three-wheel high-ground-clearance tractor chassis structure, characterized by: The invention comprises a chassis (1), a steering mechanism (2), a gate-type front fork arm (3), an engine assembly (4), a gearbox assembly (5), a rear axle assembly (6), a left final drive assembly (7) and a right final drive assembly (8), wherein the steering mechanism (2) is mounted on the front of the chassis (1), the front fork arm (3) is arranged below the front of the chassis (1) and is connected to the steering mechanism (2), a front guide wheel assembly (9) is mounted in the front fork arm (3), the engine assembly (4) is mounted in the middle of the chassis (1), the gearbox assembly (5) and the rear axle assembly (6) are sequentially mounted behind the engine assembly (4) and are respectively assembled and connected to the chassis (1), and the input end of the gearbox assembly (5) is connected to the output end of the engine assembly (4). The output end of the gearbox assembly (5) is connected to the input end of the rear axle assembly (6) by transmission. The left and right ends of the rear axle assembly (6) are respectively provided with a left output shaft and a right output shaft connected to the internal transmission structure thereof. The left final drive assembly (7) and the right final drive assembly (8) are respectively installed on the left and right ends of the rear axle assembly (6), and the left output shaft is connected to the input shaft of the left final drive assembly (7), and the right output shaft is connected to the input shaft of the right final drive assembly (8). The left final drive assembly (7) and the right final drive assembly (8) are respectively provided with an output shaft whose height is lower than that of their respective input shafts, and the output shafts of the left final drive assembly (7) and the right final drive assembly (8) are respectively connected to a rear wheel assembly (10).

2. The three-wheel high-ground-clearance tractor chassis structure according to claim 1, characterized in that: The steering mechanism (2) includes a slewing bearing and two groups of hydraulic telescopic mechanisms. The lower end of the rotating disk of the slewing bearing is fixedly connected to the upper end of the front fork arm (3). The upper end of the rotating disk of the slewing bearing is symmetrically provided with shaft heads (211). The two groups of hydraulic telescopic mechanisms are respectively installed on the upper end of the chassis (1), and the telescopic ends of the two are movably connected to the two shaft heads (211) in a one-to-one correspondence.

3. The three-wheel high-ground-clearance tractor chassis structure according to claim 2, characterized in that: The hydraulic telescopic mechanism is a hydraulic cylinder.

4. The three-wheel high-ground-clearance tractor chassis structure according to claim 1, characterized in that: The rear end of the chassis (1) is equipped with a loading connection assembly for hooking equipment.

5. The three-wheel high-ground-clearance tractor chassis structure according to claim 1, characterized in that: A left brake (90) is mounted between the left final drive assembly (7) and the left end of the rear axle assembly (6), and the left brake (90) is used to brake the left output shaft.

6. The three-wheel high-ground-clearance tractor chassis structure according to claim 5, characterized in that: A right brake (100) is mounted between the right final drive assembly (8) and the right end of the rear axle assembly (6), and the right brake (100) is used to brake the right output shaft.

7. The three-wheel high-ground-clearance tractor chassis structure according to claim 6, characterized in that: The left final drive assembly (7) includes a left half-shaft housing (71) and a left reduction gearbox (72). One end of the left half-shaft housing (71) is assembled with the housing of the corresponding left brake (90). The left reduction gearbox (72) is at the other end of the left half-shaft housing (71). A left input half-shaft (73) is rotatably mounted in the left half-shaft housing (71). The two ends of the left input half-shaft (73) are respectively connected to the left output shaft and the input shaft of the left reduction gearbox (72). The left reduction gearbox (72) has a left output shaft whose height is lower than the left output shaft. The left output shaft of the left reduction gearbox (72) is connected to the rear wheel assembly (10).

8. The three-wheel high-ground-clearance tractor chassis structure according to claim 7, characterized in that: The right final drive assembly (8) includes a right half-shaft housing (81) and a right reduction gearbox (82). One end of the right half-shaft housing (81) is assembled with the housing of the corresponding right brake (100). The right reduction gearbox (82) is at the other end of the right half-shaft housing (81). A right input half-shaft (83) is rotatably mounted in the right half-shaft housing (81). The two ends of the right input half-shaft (83) are respectively connected to the right output shaft and the input shaft of the right reduction gearbox (82). The right reduction gearbox (82) has a right output shaft whose height is lower than the right output shaft. The right output shaft of the right reduction gearbox (82) is connected to the rear wheel assembly (10).

9. A three-wheel high ground clearance tractor chassis structure according to any one of claims 1 to 8, characterized in that: The rear end of the rear axle assembly (6) is provided with a power output shaft assembly (80) connected to its internal transmission structure.

10. A three-wheel tractor, characterized by: The invention comprises a three-wheel high-ground-clearance tractor chassis structure as claimed in any one of claims 1 to 9.

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