High-horsepower small-size tractor

Abstract

The utility model provides a high-horsepower small volume tractor relates to tractor technical field, the high-horsepower small volume tractor includes frame, power assembly, axle assembly and wheel assembly, the power assembly is provided on the frame for providing driving power, the axle assembly is provided on the frame for providing driving power, the wheel assembly is provided on the frame for providing driving power, the axle assembly is provided on the frame for providing driving power, and the wheel assembly is provided on the frame for providing driving power. The wheel assembly is connected with the power assembly through the axle assembly, the power assembly comprises an engine and a clutch, the clutch is provided with a main shifting fork and an auxiliary shifting fork, and the main shifting fork and the auxiliary shifting fork act at the same time through a retractable clutch hydraulic system; through mutual cooperation of the frame, the power assembly, the axle assembly, the wheel assembly and the retractable clutch hydraulic system, the space utilization rate is high, structural arrangement is facilitated, and the size of the whole vehicle is reduced on the basis that sufficient horsepower is guaranteed, operation is stable and faults are not prone to occurring.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a large-horsepower and small-volume tractor. Background Art

[0002] A tractor is a self-propelled power machine used to tow and drive work machinery to complete various mobile operations. It is widely used in industry and daily life.

[0003] A tractor usually includes a frame, an engine, a clutch, a front axle, a rear axle, tires and other parts. The existing high-horsepower tractors with power-assisted clutches have an incompact structure and a low frame space utilization rate, which makes them larger in size. For example, the clutch power-assisted pedal usually drives the clutch fork by extending the oil cylinder, and the outward extension will take up a large space, which is not conducive to the structural layout. Utility Model Content

[0004] The purpose of the utility model is to provide a high-horsepower and small-volume tractor to solve the technical problems in the prior art that the existing high-horsepower tractors adopt an extended clutch drive structure, have low space utilization, are not compact enough, and have a large volume; the preferred technical solution among the many technical solutions provided by the utility model can produce many technical effects; see the following description for details.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a high-horsepower and small-volume tractor, comprising a frame, a power assembly, an axle assembly and a wheel assembly, wherein: the power assembly is arranged on the frame to provide driving power, the axle assembly is arranged on the frame, the wheel assembly is connected to the power assembly through the axle assembly, the power assembly comprises an engine and a clutch, the clutch is provided with a main shift fork and a secondary shift fork, and the main shift fork and the secondary shift fork are simultaneously actuated by a contraction clutch hydraulic system.

[0007] Preferably, the frame includes a front axle bracket, the axle assembly includes a front axle and a rear axle, and the wheel assembly includes a front wheel and a rear wheel, wherein: the front axle is arranged on the front axle bracket; the front wheel is connected to the steering system through the front axle; and the powertrain is connected to the rear wheel through the rear axle.

[0008] Preferably, the powertrain includes an engine cooling system, which includes a radiator and a water tank, wherein: the radiator is connected to the front side of the engine; the water tank is arranged on the frame, and the engine, radiator and water tank form a cooling circuit.

[0009] Preferably, the power assembly includes an intake system and an exhaust system, wherein: the intake system includes an air filter, the air filter is arranged on a first side of the engine and connected to an air intake of the engine; the exhaust system includes an exhaust pipe, the exhaust pipe is arranged on a second side of the engine and connected to an air outlet of the engine, and a muffler is provided on the exhaust pipe.

[0010] Preferably, the high-horsepower, small-volume tractor further comprises a connecting frame for connecting agricultural implements, and the connecting frame is arranged on the rear side of the frame.

[0011] Preferably, the retractable clutch hydraulic system includes a hydraulic cylinder, a pedal trigger mechanism and a linkage mechanism, wherein: the hydraulic cylinder is provided with a cylinder switch for starting the retracting action of the hydraulic cylinder; the pedal trigger mechanism is used to trigger the cylinder switch; the telescopic end of the hydraulic cylinder is connected to the main fork and the auxiliary fork through a linkage mechanism, and can drive the main fork and the auxiliary fork to move simultaneously.

[0012] Preferably, the pedal trigger mechanism includes a pedal assembly, a transmission rod and a trigger member, wherein: the pedal assembly is hingedly arranged on the frame, and the pedal assembly is connected to the trigger member through the transmission rod; when the pedal assembly is stepped on, the transmission rod can drive the trigger member to move, and the trigger member triggers the cylinder switch to cause the hydraulic cylinder to contract.

[0013] Preferably, the linkage mechanism includes a linkage rod, a linkage pin and a linkage cable, wherein: the input end of the linkage rod is hingedly connected to the telescopic end of the hydraulic cylinder through the linkage pin, and the main fork is rotatably connected to the linkage pin; the connecting end of the linkage cable is connected to the output end of the linkage rod, and the traction end of the linkage cable is connected to the auxiliary fork.

[0014] Preferably, the retractable clutch hydraulic system also includes a hydraulic oil tank, an oil pump and a diverter valve, and the hydraulic oil tank, the oil pump, the diverter valve and the hydraulic cylinder are connected in sequence to form a hydraulic circulation loop; the hydraulic oil tank is arranged on the frame and is located on the second side of the engine, and the oil pump is connected to the outer wall of the engine and is located on the second side of the engine.

[0015] Preferably, the hydraulic oil tank is configured as a multi-filter oil tank, and the multi-filter oil tank includes a box body and a filter element, wherein: the box body is provided with an oil filling port; the number of the filter elements is set to be multiple, all the filter elements are fixedly arranged in the box body, and the oil discharge end of the filter element is connected to an oil discharge pipe, and the oil discharge pipe passes through the box wall of the box body.

[0016] The high-horsepower and small-volume tractor provided by the utility model has at least the following beneficial effects:

[0017] The high-horsepower and small-volume tractor comprises a vehicle frame, a power assembly, an axle assembly and a wheel assembly, wherein the vehicle frame is used for installing the power assembly, the axle assembly and the wheel assembly.

[0018] The power assembly is arranged on the frame to provide driving power for the tractor.

[0019] The axle assembly is arranged on the vehicle frame, and the wheel assembly is connected to the power assembly through the axle assembly. The axle assembly is used for power transmission, and the wheel assembly is a driving execution component.

[0020] The clutch is provided with a main fork and a secondary fork, and the main fork and the secondary fork are synchronously moved by a contraction-type clutch hydraulic system. The contraction-type clutch hydraulic system is adopted to drive the movement of the main and secondary forks by the contraction movement. The inward contraction method can save space, and on the basis of ensuring the action effect, it is convenient for structural arrangement and improves space utilization.

[0021] The utility model has a high space utilization rate, is convenient for structural arrangement and reduces the volume of the whole vehicle on the basis of ensuring sufficient horsepower, stable operation and low malfunction through the cooperation of the vehicle frame, power assembly, axle assembly, wheel assembly and retractable clutch hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a simplified structural diagram of the utility model from a side perspective;

[0024] Figure 2 It is a simplified structural diagram of the utility model from another side perspective;

[0025] Figure 3 This is a simplified structural diagram of the utility model from a rear perspective;

[0026] Figure 4 It is a structural schematic diagram of one side of the main shift fork of the retractable clutch hydraulic system of the utility model;

[0027] Figure 5 It is a structural schematic diagram of the auxiliary fork side of the retractable clutch hydraulic system of the utility model;

[0028] Figure 6 It is a schematic diagram of the operation of the retractable clutch hydraulic system of the utility model;

[0029] Figure 7 It is a schematic diagram of the main view of the hydraulic cylinder of the utility model;

[0030] Figure 8 It is a top view schematic diagram of the hydraulic cylinder of the utility model;

[0031] Fig. 9 It is a cross-sectional schematic diagram of the hydraulic cylinder of the utility model;

[0032] Fig.10 This is a schematic diagram of hydraulic circulation reflux of the utility model;

[0033] Fig.11 It is a structural schematic diagram of the multi-filter oil tank of the utility model;

[0034] Fig.12 It is a top view schematic diagram of the multi-filter oil tank of the utility model;

[0035] Fig.13 It is a cross-sectional schematic diagram of the multi-filter oil tank of the utility model;

[0036] Fig.14 It is a structural schematic diagram of the filter element of the utility model.

[0037] Reference numerals

[0038] 1. Frame; 2. Powertrain; 21. Main fork; 22. Secondary fork; 23. Radiator; 24. Air filter; 25. Muffler; 26. Oil tank; 3. Axle assembly; 4. Wheel assembly; 5. Retractable clutch hydraulic system; 51. Hydraulic cylinder; 511. Cylinder switch; 5111. Switch body; 5112. Second return spring; 512. Piston rod; 5121. Annular connecting cavity; 5122. First connecting hole; 5123. Second connecting hole; 513. Cylinder body; 5131. Guide groove; 5132. Oil inlet; 5133. Oil outlet; 514. First return spring; 52. Pedal trigger mechanism; 521, pedal assembly; 5211, pedal body; 5212, pedal connecting rod; 5213, return spring; 522, transmission rod; 523, trigger member; 53, linkage mechanism; 531, linkage rod; 532, linkage pin; 533, linkage cable; 54, oil tank; 541, box body; 5411, oil filling port; 5412, oil return pipe; 5413, oil drain pipe; 542, filter element; 5421, filter element body; 5422, first end cover; 5423, second end cover; 5424, connecting nut; 543, oil cap; 55, oil pump; 56, diverter valve; 6, connecting frame. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0040] The utility model provides a high-horsepower and small-volume tractor, such as Figures 1 to 14 As shown, the high-horsepower and small-volume tractor includes a frame 1, a power assembly 2, an axle assembly 3 and a wheel assembly 4.

[0041] The power assembly 2 is arranged on the frame 1 to provide driving power for the tractor. The axle assembly 3 is arranged on the frame 1. The wheel assembly 4 is connected to the power assembly 2 through the axle assembly 3. The axle assembly 3 can transmit the driving power provided by the power assembly 2 to the wheel assembly 4.

[0042] The power assembly 2 includes an engine and a clutch. The clutch is provided with a main fork 21 and a secondary fork 22. The main fork 21 and the secondary fork 22 are relatively arranged on both sides of the clutch housing. The main fork 21 and the secondary fork 22 are simultaneously actuated by a contraction clutch hydraulic system 5.

[0043] The retractable clutch hydraulic system 5 is adopted, and the retracting power is used as the initial power of the clutch action. The inward retracting method can effectively save space, improve space utilization, facilitate structural layout, and reduce the overall volume while ensuring that the tractor has sufficient horsepower and stable operation.

[0044] As an optional embodiment, the vehicle frame 1 includes a front axle bracket, the axle assembly 3 includes a front axle and a rear axle, and the wheel assembly 4 includes a front wheel and a rear wheel.

[0045] The front axle is arranged on the front axle bracket, the front wheels are connected to the steering system through the front axle, the steering system includes a steering wheel, the front wheels are steering wheels, and the front axle can effectively transmit the steering power provided by the steering system to the front wheels.

[0046] The power assembly 2 is connected to the rear wheels through the rear axle, and the rear wheels are driving wheels. The rear axle can effectively transmit the driving power provided by the power assembly 2 to the rear wheels.

[0047] The front axle, the steering system and the rear axle all adopt existing technologies, and their structures are not described in detail.

[0048] As an optional implementation, the power assembly 2 includes an engine cooling system, and the engine cooling system includes a radiator 23 and a water tank.

[0049] The radiator 23 is connected to the front side of the engine, and the water tank is arranged on the vehicle frame 1. The engine, the radiator 23 and the water tank form a heat dissipation circuit. The radiator 23 is a prior art, and its structure is not described in detail.

[0050] As an optional implementation, the powertrain 2 includes an intake system and an exhaust system.

[0051] The air intake system includes an air filter 24 , which is disposed on a first side of the engine and connected to an air intake port of the engine.

[0052] The exhaust system comprises an exhaust pipe, which is arranged at the second side of the engine and connected to the exhaust port of the engine. A muffler 25 is arranged on the exhaust pipe.

[0053] With this arrangement, the structure is more compact while ensuring the air intake and exhaust effects.

[0054] As an optional embodiment, the engine is connected to an oil tank 26 via an oil circuit. The oil tank 26 is disposed on the vehicle frame 1 and is located on a first side of the engine. The oil tank 26 is located behind the lower side of the air filter 24 .

[0055] As an optional embodiment, the high-horsepower, small-volume tractor also includes a connecting frame 6, which is arranged on the rear side of the frame 1. The connecting frame 6 is used to connect agricultural implements, such as deep plowing machines, etc., and can be selected according to needs and has a wide range of applications. The structure of the connecting frame 6 is existing technology, and its structure will not be repeated.

[0056] As an optional implementation, the contraction clutch hydraulic system 5 includes a hydraulic cylinder 51 , a pedal trigger mechanism 52 and a linkage mechanism 53 .

[0057] The hydraulic cylinder 51 is provided with a cylinder switch 511, which is used to start the contraction action of the hydraulic cylinder 51; the pedal trigger mechanism 52 is provided on the frame 1, and the cylinder switch 511 is triggered by pedaling; the telescopic end of the hydraulic cylinder 51 is connected to the main fork 21 and the auxiliary fork 22 through the linkage mechanism 53, and can drive the main fork 21 and the auxiliary fork 22 to move simultaneously.

[0058] As an optional implementation, the pedal trigger mechanism 52 includes a pedal assembly 521 , a transmission rod 522 and a trigger member 523 .

[0059] The pedal assembly 521 is hingedly arranged on the vehicle frame, and the pedal assembly 521 forms a lever mechanism. The pedal assembly 521 is connected to the trigger member 523 through a transmission rod 522 .

[0060] When in use, the driver steps on the pedal assembly 521, and the transmission rod 522 can drive the trigger member 523 to move to a position close to the cylinder switch 511, and contact the cylinder switch 511 to activate it. At this time, the hydraulic cylinder 51 performs a contraction action.

[0061] The contraction power is used as the driving power for the clutch action. On the basis of ensuring sufficient power, the inward contraction method can save space and facilitate structural layout.

[0062] As an optional embodiment, the pedal assembly 521 includes a pedal body 5211 and a pedal connecting rod 5212 .

[0063] The pedal body 5211 is connected to the pedal connecting rod 5212 and is integrally arranged. The pedal connecting rod 5212 is hinged on the frame. The two side sections of the pedal connecting rod 5212 at the hinge position between it and the frame are respectively the first connecting rod section and the second connecting rod section. The first connecting rod section and the second connecting rod section are arranged at an angle. The first connecting rod section is connected to the pedal body 5211, and the second connecting rod section is hingedly connected to the transmission rod 522. The length of the first connecting rod section is greater than the length of the second connecting rod section. In this way, while ensuring the power transmission effect, pedaling is made more labor-saving.

[0064] As an optional implementation, the pedal assembly 521 includes a return spring 5213, and both ends of the return spring 5213 are respectively connected to the pedal connecting rod 5212 and the frame.

[0065] When the pedal assembly 521 is stepped on, the pedal connecting rod 5212 drives the return spring 5213 to move, and the return spring 5213 is stretched and deformed. When the pedaling force is eliminated, the return spring 5213 in the stretched state drives the pedal assembly 521 to move in the opposite direction, so that it returns to its initial position.

[0066] As an optional implementation, a guide groove 5131 is provided through the telescopic end of the hydraulic cylinder 51 , and the trigger member 523 is movably disposed in the guide groove 5131 .

[0067] The hydraulic cylinder 51 includes a cylinder body 513, a piston rod 512 and a first return spring 514. A piston cavity is provided in the cylinder body 513. The piston rod 512 is movably inserted in the piston cavity. The piston rod 512 is connected to the main fork 21 and the auxiliary fork 22 through the linkage mechanism 53. The guide groove 5131 is provided on the piston rod 512. The first return spring 514 is provided in the piston cavity, and the two ends thereof are respectively against the piston rod 512 and the inner wall of the cylinder body 513. The cylinder body 513 is provided with a connecting rod 5131 on the piston rod 512. The connecting rod 5131 is provided on the cylinder body 513. An oil inlet 5132 and an oil outlet 5133 are provided, and an annular connecting chamber 5121 is provided on the outer peripheral wall of the piston rod 512, and the annular connecting chamber 5121 is communicated with the oil inlet 5132. A switch chamber is provided inside the piston rod 512, and a first connecting hole 5122 connecting the switch chamber and the annular connecting chamber 5121 is provided on the piston rod 512, and a second connecting hole 5123 connecting the switch chamber and the piston chamber is provided on the piston rod 512, and the second connecting hole 5123 is located at the end of the piston rod 512.

[0068] The oil cylinder switch 511 includes a switch body 5111 and a second return spring 5112. The switch body 5111 is movably inserted in the switch cavity. The second return spring 5112 is arranged in the switch cavity, and its two ends are respectively against the switch body 5111 and the inner wall of the switch cavity.

[0069] When the pedal trigger mechanism 52 is in the initial position, the hydraulic oil enters the switch cavity through the oil inlet 5132 , the annular connecting cavity 5121 and the first connecting hole 5122 in sequence, then enters the piston cavity through the second connecting hole 5123 , and is finally discharged through the oil outlet 5133 .

[0070] When the pedal trigger mechanism 52 is stepped on, the trigger member 523 moves, contacts and pushes the switch body 5111 to shrink into the switch cavity, the second return spring 5112 is compressed and deformed, and the outer wall of the switch body 5111 blocks the first connecting hole 5122. At this time, as the hydraulic oil is discharged through the oil outlet 5133, the piston rod 512 shrinks into the piston cavity, driving the linkage mechanism 53 to move, thereby driving the main shift fork 21 and the main shift fork 21 to move.

[0071] In this way, only a small pedal force is required to realize the clutch action, which saves effort in operation.

[0072] As an optional implementation, the linkage mechanism 53 includes a linkage rod 531 and a linkage pin 532 .

[0073] The input end of the linkage rod 531 is hingedly connected to the telescopic end of the piston rod 512 of the hydraulic cylinder 51 through the linkage pin 532, and the main shift fork 21 is rotatably connected to the linkage pin 532. In this way, the piston rod 512 and the main shift fork 21 form a lever mechanism. When the piston rod 512 telescopes, the main shift fork 21 swings.

[0074] As an optional implementation, the linkage mechanism 53 includes a linkage cable 533 , a connecting end of the linkage cable 533 is connected to the output end of the linkage rod 531 , and a traction end of the linkage cable 533 is connected to the auxiliary fork 22 .

[0075] Since the auxiliary fork 22 and the main fork 21 are respectively located on both sides of the clutch housing, the auxiliary fork 22 is linked by a cable, which is not affected by the scene and can stably transmit power, thereby ensuring the action effect of the auxiliary fork 22.

[0076] As an optional embodiment, the retractable clutch hydraulic system 5 further includes a hydraulic oil tank 54, an oil pump 55 and a diverter valve 56. The hydraulic oil tank 54, the oil pump 55, the diverter valve 56 and the hydraulic cylinder 51 are connected in sequence to form a hydraulic circulation loop.

[0077] As an optional implementation, the hydraulic oil tank 54 is configured as a multi-filter oil tank, and the multi-filter oil tank includes a tank body 541 and a filter element 542 .

[0078] An oil filling port 5411 is provided at the top of the box body 541, and an oil cap 543 is threadedly connected to the oil filling port 5411; the number of filter elements 542 is set to be multiple, all filter elements 542 are fixedly set in the box body 541, all filter elements 542 are arranged in parallel, and the oil outlet end of the filter element 542 is connected to an oil drain pipe 5413, and the oil drain pipe 5413 passes through the box wall of the box body 541.

[0079] A multi-filter oil tank is adopted. On the one hand, the filter element 542 can effectively filter impurities in the oil. On the other hand, the oil tank adopts a built-in filter element structure, and no external filter is required. It is not only compact in structure, but also can effectively reduce the equipment failure rate. At the same time, multiple independent and parallel filter elements 542 cooperate with each other. When a single filter element 542 fails, the remaining filter elements 542 still work normally, which does not affect the normal operation of the entire hydraulic system and improves the system stability.

[0080] As an optional embodiment, the filter element 542 includes a filter element body 5421 , a first end cover 5422 and a second end cover 5423 .

[0081] The filter element body 5421 is arranged horizontally, and its shape is arranged to be cylindrical, and a filter screen is arranged on the surrounding wall.

[0082] The first end cover 5422 and the second end cover 5423 are respectively disposed at two ends of the filter element body 5421 , and the second end cover 5423 is provided with an oil drain port.

[0083] When the hydraulic system is running, the oil enters the filter element body 5421 through the filter, and impurities are retained on the outside of the filter, and then the oil flows out through the oil drain port.

[0084] The second end cover 5423 is provided with a connecting nut 5424 , and the inlet end of the oil drain pipe 5413 is provided with an external thread that matches the thread of the connecting nut 5424 . The second end cover 5423 is threadedly connected to the inlet end of the oil drain pipe 5413 through the connecting nut 5424 .

[0085] The threaded connection structure is adopted, which ensures firm connection and convenient assembly and disassembly.

[0086] In the description of the present application, it should be understood that the terms "upper", "lower", "inside", "outside", "top", "bottom", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0087] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0088] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A high-horsepower and small-volume tractor, characterized in that: It includes a vehicle frame, a powertrain, an axle assembly and a wheel assembly, among which: The power assembly is arranged on the frame to provide driving power, the axle assembly is arranged on the frame, the wheel assembly is connected to the power assembly through the axle assembly, the power assembly includes an engine and a clutch, the clutch is provided with a main fork and a secondary fork, and the main fork and the secondary fork are simultaneously actuated by a contraction clutch hydraulic system.

2. The high-horsepower, small-volume tractor according to claim 1, characterized in that: The vehicle frame includes a front axle bracket, the vehicle axle assembly includes a front axle and a rear axle, and the wheel assembly includes a front wheel and a rear wheel, wherein: The front axle is arranged on the front axle bracket; The front wheels are connected to the steering system via the front axle; The powertrain is connected to the rear wheels via the rear axle.

3. The high-horsepower and small-volume tractor according to claim 1, characterized in that: The powertrain includes an engine cooling system, which includes a radiator and a water tank, wherein: The radiator is connected and arranged on the front side of the engine; The water tank is arranged on the vehicle frame, and the engine, the radiator and the water tank form a heat dissipation circuit.

4. The high-horsepower, small-volume tractor according to claim 1, characterized in that: The powertrain includes an intake system and an exhaust system, wherein: The air intake system comprises an air filter, which is arranged on a first side of the engine and connected to an air intake port of the engine; The exhaust system comprises an exhaust pipe, which is arranged on the second side of the engine and connected to the air outlet of the engine. A muffler is arranged on the exhaust pipe.

5. The high-horsepower and small-volume tractor according to claim 1, characterized in that: The high-horsepower and small-volume tractor further comprises a connecting frame for connecting agricultural implements, wherein the connecting frame is arranged at the rear side of the frame.

6. The high-horsepower, small-volume tractor according to claim 1, characterized in that: The retractable clutch hydraulic system includes a hydraulic cylinder, a pedal trigger mechanism and a linkage mechanism, wherein: The hydraulic cylinder is provided with a cylinder switch for starting the hydraulic cylinder contraction action; The pedal trigger mechanism is used to trigger the cylinder switch; The telescopic end of the hydraulic oil cylinder is connected to the main fork and the auxiliary fork through a linkage mechanism, and can drive the main fork and the auxiliary fork to move simultaneously.

7. The high-horsepower, small-volume tractor according to claim 6, characterized in that: The pedal trigger mechanism comprises a pedal assembly, a transmission rod and a trigger member, wherein: The pedal assembly is hingedly arranged on the frame, and the pedal assembly is connected to the trigger member through the transmission rod; By stepping on the pedal assembly, the transmission rod can drive the trigger member to move, and the trigger member can trigger the cylinder switch to cause the hydraulic cylinder to contract.

8. The high-horsepower, small-volume tractor according to claim 6, characterized in that: The linkage mechanism comprises a linkage rod, a linkage pin and a linkage cable, wherein: The input end of the linkage rod is hingedly connected to the telescopic end of the hydraulic cylinder through the linkage pin, and the main shift fork is rotatably connected to the linkage pin; The connecting end of the linkage cable is connected to the output end of the linkage rod, and the traction end of the linkage cable is connected to the auxiliary fork.

9. The high-horsepower, small-volume tractor according to claim 6, characterized in that: The retractable clutch hydraulic system further comprises a hydraulic oil tank, an oil pump and a diverter valve, wherein the hydraulic oil tank, the oil pump, the diverter valve and the hydraulic oil cylinder are sequentially connected to form a hydraulic circulation loop; The hydraulic oil tank is arranged on the vehicle frame and is located on the second side of the engine. The oil pump is connected to the outer wall of the engine and is located on the second side of the engine.

10. The high-horsepower and small-volume tractor according to claim 9, characterized in that: The hydraulic oil tank is configured as a multi-filter oil tank, and the multi-filter oil tank comprises a tank body and a filter element, wherein: The box body is provided with an oil filling port; The number of the filter elements is set to be multiple, all of the filter elements are fixedly arranged in the box body, the oil discharge end of the filter element is connected to an oil discharge pipe, and the oil discharge pipe passes through the box wall of the box body.

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