Full frame heavy duty hybrid tractor with shovel blade

Abstract

This invention relates to a full-frame high-horsepower hybrid tractor with a blade, belonging to the field of tractor technology. It solves the technical problem of the blade's inability to buffer when it hits hard objects. The tractor includes a tractor body, a load-bearing block, a suspension mounting frame, and a blade. The bottom of the suspension mounting frame has two cylinders, with a sliding rod slidably connected inside each cylinder. A pressure block is fixedly connected to the sliding rod, and a spring is installed between the pressure block and the cylinder. An annular slider is slidably connected to the sliding rod. The inner walls of the cylinders are threaded internally, and the surface of the annular slider is threaded externally to mate with the internal threads. This invention can transform rigid impacts into controllable buffering actions when the blade encounters hard obstacles such as rocks during operation, causing the blade to rotate adaptively. This effectively absorbs and dissipates impact energy, protecting the blade from damage caused by excessive instantaneous loads and providing the operator with adjustment and reaction time, significantly improving reliability and durability under complex working conditions.

Description

Technical Field

[0001] This invention relates to the field of tractor technology, specifically to a full-frame high-horsepower hybrid tractor with a shovel. Background Technology

[0002] In the field of site development, rapid and effective earthmoving of the original terrain is a fundamental step in implementing subsequent development. Bulldozing, as the most common earthmoving method, mainly involves installing a blade in front of a tractor to scrape, push, and level the soil and other materials, thereby achieving the purpose of site leveling.

[0003] The structural design of the bulldozer blade in existing tractors is usually a rigid connection. There is a lack of effective buffer or elastic force relief mechanism between the blade and the suspension structure. When the blade suddenly encounters a hard obstacle hidden underground (such as a rock, brick, ditch, etc.) during bulldozing, the huge impact force will be directly transmitted to the entire working device and even the frame through the rigid components without any attenuation. This "hard-on-hard" contact will cause irreversible damage or cumulative fatigue to the blade body, hydraulic cylinder and key connecting parts.

[0004] While there are more advanced and feature-rich blade suspension designs in the existing technology, their high cost makes them unsuitable for different customer needs. Other types of suspended blades also have buffer mechanisms, but these are mostly fixed buffers. In bulldozing operations, fixed buffers can affect work efficiency due to the different soil environments in different regions and soil conditions, and cannot be adapted to different soil working environments.

[0005] Existing shovel blade operations are mostly limited to vertical height adjustment. However, the angle of contact between the blade and the ground (i.e., the forward or backward tilt angle) is usually fixed or has a very limited adjustment range. This makes it impossible to achieve the best cutting efficiency and the lowest travel resistance by optimizing the blade's angle of contact with the soil when facing soils of different hardness and moisture or different operational requirements (such as fine leveling or heavy excavation). At the same time, the horizontal deflection angle of the blade (i.e., the left and right swing direction) also generally lacks an effective adjustment mechanism, making it impossible to flexibly push the soil to one side continuously or perform curved leveling operations without changing the overall direction of the machine's travel.

[0006] Based on this, the present invention provides a full-frame high-horsepower hybrid tractor with a shovel to solve the above problems. Summary of the Invention

[0007] In view of the above situation and to overcome the defects of the prior art, the present invention provides a full-frame high-horsepower hybrid tractor with a shovel. The present invention has a novel structure and ingenious design, and effectively solves the technical problems of the shovel's inability to buffer when it hits hard objects and the inability to adjust the buffer.

[0008] A full-frame high-horsepower hybrid tractor with a shovel includes a tractor body, a load-bearing block, a suspension mounting frame, and a shovel. The bottom of the suspension mounting frame is provided with two cylinders, and a slide rod is slidably connected inside the cylinder. A pressure block is fixedly connected to the slide rod. A spring is sleeved on the slide rod between the pressure block and the bottom wall of the cylinder. An annular slider is slidably connected to the slide rod. The inner wall of the cylinder is provided with internal threads, and the surface of the annular slider is provided with external threads that mate with the internal threads.

[0009] Preferably, a limiting groove is provided on one side of the slide rod, and a limiting block that is slidably connected in the limiting groove is fixedly connected to the inner wall of the annular slider.

[0010] Preferably, the annular slider is provided with multiple fixing bolts, and one side of the pressure block is provided with multiple screw grooves that cooperate with the fixing bolts.

[0011] Preferably, the bottom two sides of the suspension mounting frame are fixedly connected to limit frames, the limit frames are rotatably connected to active supports, and the two cylinders are fixedly connected to the active supports.

[0012] Preferably, a rotating block is fixedly connected to the other end of the slide rod, a driven support is provided on one side of the active support, two rotating slots are opened on one side of the driven support, the two rotating blocks are rotatably connected in the two rotating slots respectively, and a screwing frame is fixedly connected to both slide rods.

[0013] Preferably, a ball head is fixedly connected to the other side of the driven bracket, and an installation frame is fixedly connected to one side of the shovel. A limit plate is slidably connected inside the installation frame, and a ball seat that mates with the ball head is fixedly connected to one side of the limit plate.

[0014] Preferably, a connecting bracket is fixedly connected to the top of the suspension mounting bracket, an upper hydraulic push rod is rotatably connected to the connecting bracket, and a mounting base is fixedly connected to the output end of the upper hydraulic push rod, with a support block provided on the mounting base.

[0015] Preferably, the support block has two adjusting grooves, each groove is rotatably connected to a threaded rod, and each groove is slidably connected to a sliding block that cooperates with the threaded rod. The top of each sliding block is fixedly connected to a mounting bracket.

[0016] The present invention has the following technical effects.

[0017] 1. This invention, through the cylinder, sliding rod, pressure block and spring, can transform rigid impact into a controllable buffer action when the shovel encounters hard obstacles such as rocks during operation, causing the shovel to rotate adaptively, thereby effectively absorbing and dissipating impact energy. This not only protects the shovel from damage caused by excessive instantaneous load, but also provides the operator with adjustment and reaction time, significantly improving reliability and durability under complex working conditions.

[0018] 2. This invention achieves convenient adjustment of spring buffer force through an annular slider, external thread, internal thread and limiting block. The initial buffer force can be flexibly adjusted according to the difference in soil consistency, so as to better adapt to the propulsion needs under different working conditions.

[0019] 3. This invention achieves flexible adjustment of the blade's cutting angle through a lower hydraulic push rod, an active support, and a driven support. By changing the relative inclination angle between the blade and the ground, the cutting posture can be optimized for different soil types and operational requirements (such as loosening soil, excavating hard soil, or fine leveling), thereby reducing travel resistance while ensuring cutting efficiency and improving the overall energy efficiency and quality of bulldozing operations.

[0020] 4. This invention, through support blocks, threaded rods, left push rods, and right push rods, allows for pre-adjustment or in-operation adjustment of the horizontal deflection angle of the blade. This enables the operator to continuously guide materials to one side without changing the machine's direction of travel, facilitating operations such as curved slope repair, directional soil removal, or road camber shaping, significantly enhancing the equipment's operational flexibility and functional adaptability. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the suspension mounting bracket, connecting bracket, upper hydraulic push rod and blade in this invention; Figure 3 This is a schematic diagram of the assembly structure of the limiting frame, active support and cylinder in this invention; Figure 4 This is a schematic diagram of the assembly structure of the slide bar, pressure block, annular slider and external thread in this invention; Figure 5 This is a schematic diagram of the assembly structure of the slide bar, rotating block, driven bracket and screwing frame in this invention; Figure 6 This is a schematic diagram of the assembly structure of the annular slider, external thread, limiting block and fixing bolt in this invention; Figure 7 This is a schematic diagram of the assembly structure of the limiting frame, active support, sliding rod and driven support in this invention.

[0022] Reference numerals: 1. Tractor body; 2. Load-bearing block; 3. Suspension mounting bracket; 4. Connecting bracket; 5. Upper hydraulic push rod; 6. Mounting seat; 7. Support block; 8. Adjusting slide; 9. Threaded rod; 10. Rotating handle; 11. Sliding block; 12. Mounting support; 13. Limiting pin; 14. Left push rod; 15. Right push rod; 16. Rotating support; 17. Blade; 18. Fixed seat; 19. Mounting frame; 20. Limiting bracket; 21. Active support; 22. 23. Fixed pin; 24. Cylinder body; 25. Slide rod; 26. Driven bracket; 27. Limiting plate; 28. Ball seat; 29. ​​Ball head; 30. Spring; 31. Internal thread; 32. Through slot; 33. Pressure block; 34. Rotating slot; 35. Tightening frame; 36. Screw slot; 37. Limiting slot; 38. Annular slider; 39. External thread; 40. Limiting block; 41. Fixing bolt; 42. Main rotating seat; 43. Lower hydraulic push rod; 44. Auxiliary rotating seat. Detailed Implementation

[0023] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 7 The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0024] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0025] This invention relates to a full-frame high-horsepower hybrid tractor with a blade, comprising a tractor body 1, a load-bearing block 2, a suspension mounting frame 3, and a blade 17. The bottom of the suspension mounting frame 3 has two cylindrical bodies 23, each with a through-slot 31 on one side. One end of each cylindrical body 23 is open, and the other end is closed. The through-slot 31 is located at the closed end of the cylindrical body 23 and is situated on the central axis of the cylindrical body 23. A sliding rod 24 is slidably connected within each through-slot 31, and a pressure block 32 is fixedly connected to each of the two sliding rods 24. The two pressure blocks 32 are identical in shape and size. All are circular. A spring 29 is provided between the two pressure blocks 32 and the bottom walls of the two cylinders 23. The spring 29 is movably sleeved on the slide rod 24. Annular sliders 38 are slidably connected to the two slide rods 24. The two annular sliders 38 are the same in shape and size, and their diameter is larger than that of the pressure blocks 32. The inner walls of the two cylinders 23 are provided with internal threads 30. The length of the internal threads 30 occupies half of the overall length of the inner wall of the cylinder 23. The surfaces of the two annular sliders 38 are provided with external threads 39. The two annular sliders 38 are threadedly connected to the inner walls of the cylinders 23 through the external threads 39.

[0026] As an embodiment, limiting grooves 37 are formed on one side of each of the two sliding rods 24, limiting blocks 40 are fixedly connected to the inner walls of the two annular sliders 38, and the two limiting blocks 40 are respectively slidably connected in the two limiting grooves 37.

[0027] In this embodiment, during agricultural soil operation, when the blade 17 suddenly hits a protruding stone, the blade 17 is blocked and will produce a relative backward displacement or the suspension mounting bracket 3 will move forward. For better understanding and description, the following will take the case where the blade 17 is blocked and will produce a relative backward displacement as an example for description.

[0028] This impact force is transmitted through the driven bracket 25 and the sliding rod 24, pushing the sliding rod 24 to slide inside the cylinder body 23. During this process, the sliding rod 24 drives the pressing block 32 to squeeze the spring 29, causing it to store energy and deform, thereby converting the rigid impact into a flexible buffer.

[0029] During buffering, when encountering some stones with smaller protrusions, the blade 17 itself rotates, passes over the stones and then resets to continue the earth-pushing operation. When encountering larger stones, the rotation angle of the blade 17 itself is too large, thus reminding the operator to brake and adjust the height of the blade. At the same time, the blade 17 can be moderately deflected around the connection point towards the active bracket 21 to further absorb the impact energy.

[0030] To meet the operation requirements of soils with different viscosities, the operator turns the sliding rod 24 to make it rotate. The sliding rod 24 drives the limiting block 40 to rotate through the limiting groove 37 on its surface, and the limiting block 40 drives the annular slider 38 to rotate synchronously. Since the external thread 39 of the annular slider 38 meshes with the internal thread 30 of the cylinder body 23, the rotation will cause the annular slider 38 to axially move along the inner wall of the cylinder body 23, pushing the pressing block 32 to further compress the spring 29, increasing the initial pre-tightening force of the spring 29, so that it requires a greater force to deform when encountering an impact, thus being more suitable for maintaining the operation stability of the blade 17 in hard or viscous soils.

[0031] As an embodiment, a plurality of fixing bolts 41 are provided on each of the two annular sliders 38, a plurality of screw grooves 36 are formed on one side of each of the two pressing blocks 32 close to the annular sliders 38, and the two annular sliders 38 are respectively connected to the two pressing blocks 32 through the fixing bolts 41.

[0032] As an embodiment, limiting frames 20 are fixedly connected to both sides of the bottom of the suspension mounting bracket 3. The limiting frames 20 are in the shape of "冂", and the two limiting frames 20 are respectively rotatably connected to the active bracket 21 through fixing pins 22, and the two cylinder bodies 23 are fixedly connected to the active bracket 21.

[0033] As an example, the other ends of the two slide rods 24 are fixedly connected to rotating blocks 34. The rotating blocks 34 are circular. A driven support 25 is provided on one side of the active support 21. Two rotating slots 33 are opened on one side of the driven support 25. The two rotating blocks 34 are rotatably connected in the two rotating slots 33 respectively. A tossing frame 35 is fixedly connected to the two slide rods 24.

[0034] In this embodiment, when the preload of the buffer needs to be adjusted, the operator rotates the screwing frame 35, causing the slide rod 24 and its end rotating block 34 to rotate within the rotating groove 33 of the driven bracket 25. This allows the slide rod 24 to rotate smoothly while ensuring that the slide rod 24 and the driven bracket 25 are always connected as a whole, providing stability for force transmission and buffering. When working on hard surfaces or other conditions where buffering is not required, the fixing bolt 41 on the annular slider 38 can be tightened, allowing it to pass through the annular slider 38 and screw into the corresponding screw groove 36 of the pressure block 32, thus securing the annular slider 38 and the pressure block 32 as a whole. Since the annular slider 38 is connected to the internal thread 30 on the cylinder 23 via the external thread 39, and the pressure block 32 is fixed to the slide rod 24, the entire slide rod 24, pressure block 32, and annular slider 38 are locked into a rigid structure that cannot move axially. This prevents the blade 17 from generating a buffered deflection during operation, ensuring the rigidity of the bulldozing operation. That is: State 1: When the fixing bolt 41 and screw groove 36 are not fixed, when the shovel 17 hits the stone, the sliding rod 24 can be driven by the driven bracket 25 to slide in the through groove 31 to compress the spring 29, thereby achieving buffering. During the sliding of the sliding rod 24, the limiting groove 37 slides on the limiting block 40.

[0035] State 2: When the fixing bolt 41 and screw groove 36 are not fixed, the rotating screwing frame 35 can drive the sliding rod 24 to rotate. The limiting groove 37 follows the rotation and drives the limiting block 40 to rotate. It also drives the annular slider 38 to rotate in the cylinder 23 to adjust the position of the annular slider 38, thereby adjusting the position of the pressure block 32, and thus adjusting the preset buffering force of the spring 29. When the shovel 17 hits the stone, the sliding rod 24 can be driven by the driven bracket 25 to slide in the through groove 31 to compress the spring 29 and achieve buffering. During the sliding process, the limiting groove 37 slides on the limiting block 40.

[0036] State 3: When the fixing bolt 41 and screw groove 36 are fixed, the shovel 17 hits the stone. The driven bracket 25 should drive the slide rod 24 to slide in the through groove 31. However, at this time, the pressure block 32 and the annular slider 38 are fixed. The annular slider 38 is threaded and fixed in the cylinder 23. Therefore, the slide rod 24, pressure block 32, and annular slider 38 are locked into a rigid structure that cannot move axially.

[0037] As an example, a ball head 28 is fixedly connected to the other side of the driven bracket 25, and a mounting frame 19 is fixedly connected to one side of the shovel 17. A limit plate 26 is slidably connected inside the mounting frame 19, and a ball seat 27 is fixedly connected to one side of the limit plate 26. The ball head 28 is rotatably connected inside the ball seat 27.

[0038] In this embodiment, when adjusting the height and shoveling angle of the blade 17, the driven bracket 25 rotates in multiple directions within the ball seat 27 via the ball head 28 at its end, thereby achieving flexible adjustment of the blade 17's posture. When it is necessary to disassemble or replace the blade 17, the operator can pull the limiting plate 26 out of the mounting frame 19, so that the driven bracket 25 and the blade 17 can be quickly separated, facilitating maintenance or replacement operations.

[0039] As an example, a connecting bracket 4 is fixedly connected to the top of the suspension mounting bracket 3. An upper hydraulic push rod 5 is rotatably connected to the connecting bracket 4. A mounting seat 6 is fixedly connected to the output end of the upper hydraulic push rod 5. The mounting seat 6 is L-shaped and has a groove for installation at the bottom. A support block 7 is provided on the mounting seat 6. A limit pin 13 is fixedly connected to the bottom of the support block 7. The limit pin 13 engages with a slot at the bottom of the mounting seat 6. The support block 7 is fixed to the mounting seat 6 by bolts through the limit pin 13.

[0040] As an example, the support block 7 has two adjusting grooves 8, both of which are rectangular. Threaded rods 9 are rotatably connected to each of the two adjusting grooves 8, and sliding blocks 11 are slidably connected to each of the two adjusting grooves 8. Both sliding blocks 11 are rectangular and are threadedly connected to the two threaded rods 9 respectively. Mounting supports 12 are fixedly connected to the top of each of the two sliding blocks 11.

[0041] There are two ways to drive the threaded rod 9: 1: The other ends of the two threaded rods 9 pass through the two sides of the support block 7 respectively, and are fixedly connected to the rotating handles 10 respectively, so that manual adjustment can be achieved by rotating the handles 10.

[0042] 2: The other ends of the two threaded rods 9 pass through the two sides of the support block 7 respectively, and are fixedly connected to drive motors. Automatic adjustment is achieved through the drive motors, which are connected to the power supply and controller.

[0043] As an example, a left push rod 14 and a right push rod 15 are rotatably connected to the two mounting supports 12 respectively. The other ends of the left push rod 14 and the right push rod 15 are rotatably connected to a rotating support 16. Two fixed seats 18 are fixedly connected to one side of the blade 17. The two rotating supports 16 are rotatably connected to the two fixed seats 18 respectively.

[0044] In this embodiment, after the blade 17 is lowered to the preset shoveling height, the output end of the upper hydraulic push rod 5 extends, driving the mounting base 6 to move towards the blade 17. Through the linkage of the left push rod 14 and the right push rod 15, the top of the blade 17 rotates, thereby adjusting the shoveling angle.

[0045] It should be noted that the upper hydraulic push rod 5 is connected to a drive mechanism and a controller, which provide power to it.

[0046] During bulldozing operations, if it is necessary to push soil blocks to one side, the operator can rotate the rotating handle 10 on one side of the support block 7 or control the drive motor to drive the threaded rod 9 in the corresponding adjusting groove 8 to rotate. This causes the sliding block 11 in the adjusting groove 8 to move along the adjusting groove 8, which is transmitted to the blade 17 through the left push rod 14 or the right push rod 15, causing it to deflect to the side. This makes the blade 17 tilted as a whole. By selecting to operate the rotating handle 10 or drive motor on different sides, the tilt direction of the blade 17 can be flexibly adjusted to meet the operational needs of pushing soil blocks to different sides.

[0047] As an example, a main rotating seat 42 is fixedly connected to the bottom of the suspension mounting bracket 3, a lower hydraulic push rod 43 is rotatably connected to the main rotating seat 42, an auxiliary rotating seat 44 is rotatably connected to the output end of the lower hydraulic push rod 43, and the auxiliary rotating seat 44 is fixedly connected to the top of the active bracket 21.

[0048] In this embodiment, when shoveling is required, the lower hydraulic push rod 43 is activated and extends its output end, pushing the active support 21 to rotate downward around the hinge point on the limit frame 20. The active support 21 drives the driven support 25 and the blade 17 connected to it to move downward as a whole, thereby completing the descent and soil entry action of the blade 17.

[0049] It should be noted that the lower hydraulic push rod 43 is connected to a drive mechanism and a controller, which provide power to it.

[0050] Working principle of this invention: During operation, the lower hydraulic push rod 43 extends, driving the active support 21, the driven support 25 and the blade 17 to descend to the working height to shovel and push soil. The upper hydraulic push rod 5 can move independently, driving the blade 17 to rotate around its upper connection point, thereby adjusting the shoveling angle.

[0051] When it is necessary to push soil to one side, manually rotate the rotating handle 10 on one side of the support block 7 or control the drive motor to drive the corresponding threaded rod 9 to rotate in the adjusting groove 8, drive the sliding block 11 to move along the adjusting groove 8, and then push the left push rod 14 or the right push rod 15 to tilt the blade 17 and achieve directional pushing.

[0052] If the blade 17 hits a protruding rock during operation, the impact force will cause the blade 17 to move backward, pushing the slide bar 24 to slide along the through groove 31 into the cylinder 23. The pressure block 32 will then compress the spring 29, causing it to store energy and deform, thereby buffering the impact and protecting the blade 17 and the suspension mounting bracket 3.

[0053] For different soil conditions, the slide bar 24 can be rotated by turning the frame 35. The slide bar 24 drives the limit block 40 and the annular slider 38 to rotate through the limit groove 37. The annular slider 38 is screwed into the cylinder 23 by the cooperation of the external thread 39 and the internal thread 30 of the cylinder 23, pushing the pressure block 32 to pre-compress the spring 29 and increase its initial pre-tightening force. This makes it necessary to have a greater impact force to deform in hard or sticky soil, thus maintaining operational stability.

[0054] In the absence of buffering, the fixing bolts 41 on the annular slider 38 can be tightened to insert it into the screw groove 36 of the pressure block 32, thereby locking the annular slider 38 and the pressure block 32 together, thus disabling the buffering function and keeping the blade 17 rigidly connected when bulldozing.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A full-frame high-horsepower hybrid tractor with a blade, comprising a tractor body (1), a load-bearing block (2), a suspension mounting bracket (3), and a blade (17), characterized in that, The bottom of the suspension mounting bracket (3) is provided with two cylinders (23). A slide rod (24) is slidably connected inside the cylinder (23). A pressure block (32) is fixedly connected to the slide rod (24). A spring (29) is sleeved on the slide rod (24) between the pressure block (32) and the bottom wall of the cylinder (23). An annular slider (38) is slidably connected to the slide rod (24). The inner wall of the cylinder (23) is provided with internal threads (30). The surface of the annular slider (38) is provided with external threads (39) that cooperate with the internal threads (30).

2. The full-frame high-horsepower hybrid tractor with a shovel as described in claim 1, characterized in that, A limiting groove (37) is provided on one side of the slide bar (24), and a limiting block (40) is fixedly connected to the inner wall of the annular slider (38) and slidably connected in the limiting groove (37).

3. The full-frame high-horsepower hybrid tractor with a shovel as described in claim 1, characterized in that, The annular slider (38) is provided with multiple fixing bolts (41), and the pressure block (32) has multiple screw grooves (36) on one side that cooperate with the fixing bolts (41).

4. The full-frame high-horsepower hybrid tractor with a shovel as described in claim 1, characterized in that, The bottom sides of the suspension mounting bracket (3) are fixedly connected to the limit bracket (20), and the limit bracket (20) is rotatably connected to the active bracket (21). The two cylinders (23) are fixedly connected to the active bracket (21).

5. The full-frame high-horsepower hybrid tractor with a shovel according to claim 4, characterized in that, The other end of the slide rod (24) is fixedly connected to a rotating block (34). A driven bracket (25) is provided on one side of the active bracket (21). Two rotating slots (33) are opened on one side of the driven bracket (25). The two rotating blocks (34) are rotatably connected in the two rotating slots (33). A screwing frame (35) is fixedly connected to both slide rods (24).

6. The full-frame high-horsepower hybrid tractor with a shovel according to claim 5, characterized in that, A ball head (28) is fixedly connected to the other side of the driven bracket (25), and an installation frame (19) is fixedly connected to one side of the shovel (17). A limit plate (26) is slidably connected inside the installation frame (19), and a ball seat (27) that cooperates with the ball head (28) is fixedly connected to one side of the limit plate (26).

7. The full-frame high-horsepower hybrid tractor with a shovel as described in claim 1, characterized in that, The top of the suspension mounting bracket (3) is fixedly connected to a connecting bracket (4), and an upper hydraulic push rod (5) is rotatably connected to the connecting bracket (4). The output end of the upper hydraulic push rod (5) is fixedly connected to a mounting base (6), and a support block (7) is provided on the mounting base (6).

8. The full-frame high-horsepower hybrid tractor with a shovel according to claim 7, characterized in that, The support block (7) has two adjusting grooves (8), each of which is rotatably connected to a threaded rod (9), and each of which is slidably connected to a sliding block (11) that cooperates with the threaded rod (9). The top of each of the two sliding blocks (11) is fixedly connected to a mounting bracket (12).

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