Agricultural machinery profiling walking device

Abstract

The utility model relates to the technical field of track walking, especially to an agricultural machinery profiling walking device, which comprises a ring-shaped walking track and a profiling shock-absorbing device sleeved in the walking track, the profiling shock-absorbing device comprises a support frame, a driving wheel arranged at the end of the support frame, and a set of profiling wheels arranged symmetrically at the lower end of the support frame, each set of the profiling wheels comprises a plurality of walking wheels, the walking wheels are hinged to the lower end of the support frame through a swing arm, and a shock-absorbing assembly is arranged between the end of the swing arm close to the walking wheels and the support frame. By arranging the symmetrically profiling wheel set in the track, when the front wheel set is lifted, the rear wheel set with a symmetric structure can provide stable support, when the rear wheel set is lifted, the front wheel set has started to fall back and provide traction, the ground profiling effect is improved, the track obstacle-crossing process is more stable, the torsional deformation and fatigue damage risk of the main frame are reduced, and the service life of the whole machine is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of tracked walking technology, and in particular to a contour-following walking device for agricultural machinery. Background Technology

[0002] Tracked agricultural machinery plays a vital role in modern agriculture due to its unique advantages of large ground contact area and low ground pressure. Compared to wheeled machinery, it effectively avoids slipping and sinking in wet, muddy fields and provides tremendous traction, making it an ideal platform for heavy-duty tillage, harvesting, and conservation tillage. In existing technologies, to further improve the shock absorption and ride comfort of these heavy-duty chassis on rough terrain, multiple independent shock-absorbing wheel sets with identical structures and aligned orientations are typically arranged linearly on a rigid frame, with cushioning provided by their T-shaped swing arm structure. However, the ground contour-following effect of this structure needs further improvement. Utility Model Content

[0003] Technical objective: In order to overcome the shortcomings of the existing technology, this utility model provides an agricultural machinery contour-following walking device, which improves the track's ability to follow the terrain and makes the chassis walk more stably.

[0004] Technical solution: To achieve the above objectives, this utility model discloses an agricultural machinery contour-following walking device, including an annular walking track and a contour-following shock-absorbing device fitted inside the walking track. The contour-following shock-absorbing device includes a support frame, a drive wheel disposed at the end of the support frame, and a contour-following wheel set disposed at the lower end of the support frame and symmetrically arranged. Each contour-following wheel set includes several walking wheels. The walking wheels are hinged to the lower end of the support frame via a swing arm. A shock-absorbing component is disposed between the end of the swing arm near the walking wheel and the support frame.

[0005] One end of the swing arm is hinged to the support frame, and the other end is hinged to the travel wheel axle. Two swing arms are symmetrically arranged.

[0006] A slide is provided between the two symmetrical swing arms, and a through hole is provided on the slide. The shock absorption assembly includes a swing rod, one end of which is hinged to the support frame, and the other end passes through the through hole and is slidably connected to the slide. A shock absorption spring is sleeved on the swing rod.

[0007] It also includes an adjusting wheel assembly, which includes a first adjusting wheel disposed at the upper end of the support frame.

[0008] The adjusting wheel assembly also includes a second adjusting wheel, which is disposed at the end of the support frame away from the drive wheel.

[0009] The second adjusting wheel is rotatably connected to one end of the slide rod, and the other end of the slide rod is fixedly connected to the adjusting rod. The slide rod and the adjusting rod are fitted with a guide tube fixedly connected to the support frame. The bottom of the guide tube is provided with a through hole, and the end of the adjusting rod passes through the through hole and is fixedly installed on the support frame. A return spring is provided between the slide rod and the bottom of the guide tube.

[0010] The contour-following walking device is provided in two symmetrical sets, arranged along the width direction of the agricultural machinery chassis, and the two support frames are fixedly connected by a crossbeam.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting symmetrical contour-following wheel sets inside the tracks, when the front wheel set is raised, the symmetrical rear wheel set can provide stable support. When the rear wheel set is raised, the front wheel set has already begun to fall back and provide traction, which improves the ground contour-following effect, makes the track obstacle crossing process smoother, reduces the risk of torsional deformation and fatigue damage of the main frame, and extends the service life of the whole machine.

[0013] 2. By setting a second adjusting wheel, and using the slide bar and adjusting rod in conjunction with the return spring, the position of the second adjusting wheel can be easily adjusted by adjusting the installation position of the adjusting rod, so as to adjust the track tension according to actual needs. During this process, the return spring provides elastic support to the slide bar. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the contour wheel assembly structure;

[0016] Figure 3 This is a three-dimensional sectional view of the second adjusting wheel structure;

[0017] Figure 4 This is a schematic diagram of the track structure.

[0018] In the diagram, 1. Track; 2. Support frame; 3. Drive wheel; 4. Contouring wheel set; 5. Traveling wheel; 6. Swing arm; 7. Traveling wheel axle; 8. Slide seat; 9. Swing rod; 10. Shock-absorbing spring; 11. First adjusting wheel; 12. Second adjusting wheel; 13. Slide rod; 14. Adjusting rod; 15. Guide tube; 16. Return spring; 17. Crossbeam. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0020] An agricultural machinery contour-following walking device includes an annular walking track 1 and a contour-following shock-absorbing device disposed within the internal space of the walking track 1, i.e., the walking track 1 covers the outside of the contour-following shock-absorbing device. The arrangement of the walking track 1 is prior art and will not be described in detail here.

[0021] The contour-following shock absorption device includes a support frame 2, around which are arranged a drive wheel 3, a contour-following wheel set 4, and an adjusting wheel set. The support frame 2 is a square tube structure, arranged along the direction of travel of the agricultural machinery. The adjusting wheel set includes a first adjusting wheel 11 and a second adjusting wheel 12. The drive wheel 3 and the second adjusting wheel 12 are rotatably connected to both ends of the support frame 2, respectively. The first adjusting wheel 11 is rotatably connected to the upper end of the support frame 2. The contour-following wheel set 4 is located at the lower end of the support frame 2 and is arranged symmetrically in two sets. The two sets of contour-following wheel sets 4 are arranged in a straight line and are respectively located at the front and rear of the support frame 2.

[0022] The drive wheel 3 is driven to rotate by the engine's power system. The drive wheel 3 is usually a gear structure, which drives the circular rotation of the track 1 by meshing with it. This is existing technology and will not be described in detail here.

[0023] The contoured wheel assembly 4 includes several sets of walking components. These components mainly include walking wheels 5, swing arms 6, and shock-absorbing components. Two opposite walking wheels 5 are connected by a walking wheel axle 7. The walking wheels 5 are hinged to the lower end of the support frame 2 via the swing arms 6. The shock-absorbing components are located between the end of the swing arm 6 near the walking wheels 5 and the support frame 2. The shock-absorbing components include a swing rod 9 and a shock-absorbing spring 10. Specifically, two symmetrically arranged swing arms 6 are provided. One end of each swing arm 6 is hinged to the support frame 2, and the other end is hinged to the walking wheel axle 7. In one specific embodiment, a mounting plate can be welded to the lower end of the support frame 2, and the swing arms 6 are hinged to the mounting plate. A slide 8 is provided between the two symmetrical swing arms 6 near the walking wheel axle 7. The slide 8 has a through hole. One end of the swing rod 9 is hinged to the support frame 2, and the other end passes through the through hole and is slidably connected to the slide 8. Similarly, a mounting plate can be welded to the lower end of the support frame 2, and the swing arm 9 connects with the mounting plate. The shock-absorbing spring 10 is sleeved on the outer periphery of the swing arm 9 and is located between the hinge point of the swing arm 9 and the support frame 2 and the slide block 8. The swing arm 6 and the swing arm 9 are close to each other at one end and far apart at the other end, forming a structure similar to a triangle.

[0024] The setting of the first adjusting wheel 11 can refer to existing technology and will not be described in detail here.

[0025] The second adjusting wheel 12 is positioned via a slide rod 13, an adjusting rod 14, a guide tube 15, and a return spring 16, thereby adjusting the track tension. Specifically, the second adjusting wheel 12 is rotatably connected to one end of the slide rod 13, and the other end of the slide rod 13 is fixedly connected to the adjusting rod 14. A guide tube 15, fixedly connected to the support frame 2, is fitted over the slide rod 13 and the adjusting rod 14. The bottom of the guide tube 15 has a through hole, through which the end of the adjusting rod 14 passes and is fixedly mounted on the support frame 2. Specifically, a mounting plate can be welded to the upper end of the support frame 2. The mounting plate has mounting holes coaxial with the through hole. The end of the adjusting rod 14 passes through the mounting hole. Nuts screwed onto the adjusting rod 14 at both ends of the mounting plate are used to position the adjusting rod 14. By adjusting the relative position of the nuts and the adjusting rod 14, the position of the second adjusting wheel 12 is adjusted, thereby adjusting the track tension. The return spring 16 is fitted around the outer circumference of the adjusting rod 14 and is positioned between the bottom of the slide rod 13 and the inner bottom of the guide tube 15.

[0026] The contour-following walking device of this utility model has two symmetrical sets, which are arranged along the width direction of the agricultural machinery chassis, and the two support frames 2 are fixedly connected by a crossbeam 17.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A contour-following walking device for agricultural machinery, comprising an annular walking track (1) and a contour-following shock-absorbing device fitted within the walking track (1), characterized in that, The contouring damping device includes a support frame (2), a drive wheel (3) disposed at the end of the support frame (2), and a contouring wheel set (4) disposed at the lower end of the support frame (2) and symmetrically arranged. Each contouring wheel set (4) includes several walking wheels (5). The walking wheels (5) are hinged to the lower end of the support frame (2) through a swing arm (6). A damping component is disposed between the end of the swing arm (6) near the walking wheel (5) and the support frame (2). One end of the swing arm (6) is hinged to the support frame (2), and the other end is hinged to the walking wheel axle (7). Two swing arms (6) are symmetrically arranged. A slide (8) is provided between the two symmetrical swing arms (6). A through hole is provided on the slide (8). The shock absorption assembly includes a swing rod (9). One end of the swing rod (9) is hinged to the support frame (2), and the other end passes through the through hole and is slidably connected to the slide (8). A shock absorption spring (10) is sleeved on the swing rod (9).

2. The agricultural machinery contour-following walking device according to claim 1, characterized in that, It also includes an adjusting wheel assembly, which includes a first adjusting wheel (11) disposed on the upper end of the support frame (2).

3. The agricultural machinery contour-following walking device according to claim 2, characterized in that, The adjusting wheel assembly also includes a second adjusting wheel (12), which is located at one end of the support frame (2) away from the drive wheel (3).

4. The agricultural machinery contour-following walking device according to claim 3, characterized in that, The second adjusting wheel (12) is rotatably connected to one end of the slide rod (13), and the other end of the slide rod (13) is fixedly connected to the adjusting rod (14). The slide rod (13) and the adjusting rod (14) are fitted with a guide tube (15) fixedly connected to the support frame (2). The bottom of the guide tube (15) is provided with a through hole. The end of the adjusting rod (14) passes through the through hole and is fixedly installed on the support frame (2). A return spring (16) is provided between the bottom of the slide rod (13) and the guide tube (15).

5. The agricultural machinery contour-following walking device according to claim 3, characterized in that, The contour-following walking device is provided in two symmetrical sets, which are arranged along the width direction of the agricultural machinery chassis, and the two support frames (2) are fixedly connected by a crossbeam (17).

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