Floating track harvester chassis

Abstract

This utility model relates to a floating tracked harvester chassis, belonging to the field of agricultural machinery technology. It includes a main chassis frame, with multiple sets of floating supports hinged to the bottom of the main chassis frame. Heavy-duty springs are fixedly installed between the main chassis frame and each set of floating supports. Multiple sets of support rollers are hinged to the bottom of each set of floating supports, and each set of support rollers is in elastic contact with the floating supports on both sides through light-duty springs. The support rollers of this utility model can float up and down according to changes in terrain, significantly improving the contact between the tracks and the ground, increasing the ground contact area, and ensuring a uniform distribution of ground pressure. This effectively prevents track slippage and sinking, significantly improving the equipment's passability. The heavy-duty and light-duty springs effectively absorb the impact and vibration caused by ground undulations, reducing impact damage and improving the smoothness of field operations. The spring-floating structure ensures good smoothness when the harvester travels on roads, allowing for higher travel speeds and strong versatility.

Description

Technical Field

[0001] This utility model relates to a floating tracked harvesting machine chassis, belonging to the field of agricultural machinery technology. Background Technology

[0002] The walking mechanisms of existing agricultural harvesting machinery for grains, cash crops, etc., mostly adopt rigid tracked chassis with support rollers. The support rollers of this type of chassis are fixedly connected to the chassis frame, which has revealed many defects in actual use, as follows: 1. The rigid support structure has no buffer components. When encountering uneven road surfaces during field operations, the chassis will be subjected to strong impacts, which can easily lead to fatigue damage of mechanical parts and reduce the overall service life of the equipment. 2. When operating in muddy or soft soil environments, uneven ground pressure distribution can cause tracks to slip or sink, resulting in poor equipment passability and reduced work efficiency. 3. Poor smoothness during relocation makes it difficult to simultaneously ensure the stability of field operations and the speed of road relocation, resulting in low relocation efficiency and increased operation time costs. Utility Model Content

[0003] Based on the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a floating tracked harvesting machinery chassis that enables the adaptive floating of the support rollers, improves the fit between the track and the ground, optimizes the ground pressure distribution, and has a buffering and vibration reduction effect, taking into account both operational stability and high-speed transfer requirements.

[0004] The floating tracked harvesting machinery chassis of this utility model includes a chassis main frame, with multiple sets of floating supports hinged to the bottom of the chassis main frame, and heavy-duty springs fixedly installed between the chassis main frame and each set of floating supports; multiple sets of support rollers are hinged to the bottom of each set of floating supports, and each set of support rollers is in elastic contact with the floating supports on both sides through light-duty springs, and the heavy-duty springs and light-duty springs have buffering, vibration reduction and adaptive adjustment functions.

[0005] Preferably, an upper connecting seat is fixed on the main chassis frame, and the floating bracket is hinged to the upper connecting seat via a swing arm; a constraint swing rod is also installed on the floating bracket, the bottom of the constraint swing rod is hinged to the floating bracket, and an elongated hole is opened in the middle of the constraint swing rod. A pin passes through the upper connecting seat, the swing arm and the elongated hole of the constraint swing rod, connecting the three together; the floating bracket can swing up and down within a certain range through the elongated hole of the constraint swing rod.

[0006] Preferably, the support roller assembly includes a support roller mounting frame on which multiple support rollers are mounted; the middle part of the support roller mounting frame is hinged to the floating support, and the two sides of the support roller mounting frame are in elastic contact with the floating support through light-load springs.

[0007] Preferably, the chassis main frame is equipped with a drive wheel and a tension wheel, and the track is arranged around the outside of the drive wheel, the tension wheel and each support wheel to form a closed track structure; the drive wheel is connected to the engine for driving the harvester to move, and the tension wheel is used to tension the track.

[0008] Preferably, the upper part of the floating support is further fixed with a limiting post, and the main frame of the chassis is fixed with a limiting baffle. The limiting baffle is located on both sides of the limiting post and is used to limit the left and right swing amplitude of the floating support.

[0009] The advantages of this utility model compared with the prior art are: 1. The support roller of this utility model can float up and down according to the terrain, which greatly improves the fit between the track and the ground, increases the ground contact area and makes the ground pressure distribution uniform. When working in muddy and soft soil environments, it effectively avoids track slippage and sinking, and significantly improves the passability of the equipment. 2. Heavy-duty springs and light-duty springs can effectively absorb the impact and vibration caused by ground undulations, reduce the damage to mechanical transmission components and chassis frame, protect the equipment structure, and improve the smoothness of field operations. 3. The spring-floating structure ensures smooth operation of the harvester during road transport, allowing for higher transport speeds, up to 30 km / h, significantly improving transport efficiency and reducing time costs; 4. This utility model adopts a floating bracket combined with a spring structure design, which is simple in structure, convenient for later inspection and maintenance, and can be adapted to various combine harvesters, with strong versatility. Attached Figure Description

[0010] Figure 1 This is one of the structural schematic diagrams of this utility model; Figure 2 This is the second structural schematic diagram of this utility model; Figure 3 This is the front view of this utility model.

[0011] In the diagram: 1. Drive wheel; 2. Heavy-duty spring; 3. Track roller assembly; 31. Track roller; 32. Track roller mounting bracket; 4. Swing arm; 5. Floating bracket; 51. Limiting post; 6. Chassis main frame; 61. Limiting baffle; 62. Upper connecting seat; 7. Track; 8. Restraining swing arm; 81. Long slot; 9. Light-duty spring; 10. Tensioner. Detailed Implementation

[0012] The present invention will be further described below with reference to specific embodiments.

[0013] like Figure 1-3As shown, this embodiment is achieved through the following technical solution: it includes a chassis main frame 6, with multiple sets of floating supports 5 hinged to the bottom of the chassis main frame 6, and heavy-duty springs 2 are fixedly installed between the chassis main frame 6 and each set of floating supports 5; multiple sets of support roller groups 3 are hinged to the bottom of each set of floating supports 5, and each set of support roller groups 3 is in elastic contact with the floating supports 5 on both sides through light-duty springs 9. The heavy-duty springs 2 and light-duty springs 9 have buffering, vibration reduction and adaptive adjustment functions.

[0014] In this embodiment, an upper connecting seat 62 is fixed on the chassis main frame 6, and the floating bracket 5 is hinged to the upper connecting seat 62 through the swing arm 4; a constraint swing rod 8 is also installed on the floating bracket 5, the bottom of the constraint swing rod 8 is hinged to the floating bracket 5, and an elongated hole 81 is opened in the middle of the constraint swing rod 8. A pin passes through the upper connecting seat 62, the swing arm 4 and the elongated hole 81 of the constraint swing rod 8, connecting the three together; the floating bracket 5 can swing up and down within a certain range through the elongated hole 81 of the constraint swing rod 8.

[0015] The track roller assembly 3 includes a track roller mounting frame 32, on which multiple track rollers 31 are mounted. The middle part of the track roller mounting frame 32 is hinged to the floating support 5, and the two sides of the track roller mounting frame 32 are in elastic contact with the floating support 5 through light-load springs 9. The chassis main frame 6 is equipped with a drive wheel 1 and a tension wheel 10. Tracks 7 are arranged around the outside of the drive wheel 1, tension wheel 10, and each track roller 31 to form a closed track structure. The drive wheel 1 is connected to the engine for driving the harvester, and the tension wheel 10 is used to tension the track 7. The floating support 5 is also fixed with a limit post 51, and the chassis main frame 6 is fixed with a limit baffle 61 located on both sides of the limit post 51 to limit the left and right swing amplitude of the floating support 5.

[0016] In actual use, the drive wheel 1 rotates, driving the track 7 to move in a cycle, thus enabling the harvester to travel. When the harvester travels to uneven roads or muddy and soft terrain, the undulation of the ground pushes each support roller 31 to move up and down. The light-load spring 9 is compressed or reset according to the direction of movement of the support roller 31. At the same time, the support roller 31 drives the floating support 5 to move up and down. The heavy-load spring 2 is compressed or reset according to the direction of movement of the floating support 5. The elastic deformation of the heavy-load spring 2 is used to offset the impact of the ground, while ensuring that the support roller 31 always adjusts its position with the terrain, ensuring that the track 7 is in close contact with the ground, and ensuring that the ground contact area and ground contact pressure are uniform.

Claims

1. A floating tracked harvesting machinery chassis, characterized in that, Includes a chassis main frame (6), with multiple sets of floating supports (5) hinged below the chassis main frame (6), and heavy-duty springs (2) fixedly installed between the chassis main frame (6) and each set of floating supports (5); multiple sets of support rollers (3) are hinged below each set of floating supports (5), and each set of support rollers (3) is in elastic contact with the floating supports (5) on both sides through light-duty springs (9).

2. The floating tracked harvesting machinery chassis according to claim 1, characterized in that, The chassis main frame (6) is fixed with an upper connecting seat (62), and the floating bracket (5) is hinged to the upper connecting seat (62) through the swing arm (4); a constraint swing rod (8) is also installed on the floating bracket (5), the bottom of the constraint swing rod (8) is hinged to the floating bracket (5), and a long hole (81) is opened in the middle of the constraint swing rod (8). The pin passes through the long hole (81) of the upper connecting seat (62), the swing arm (4) and the constraint swing rod (8) to connect the three together.

3. The floating tracked harvesting machinery chassis according to claim 1, characterized in that, The support roller assembly (3) includes a support roller mounting frame (32), on which multiple support rollers (31) are mounted; the middle part of the support roller mounting frame (32) is hinged to the floating support (5), and the two sides of the support roller mounting frame (32) are in elastic contact with the floating support (5) through light load springs (9).

4. The floating tracked harvesting machinery chassis according to claim 3, characterized in that, The chassis main frame (6) is equipped with a drive wheel (1) and a tension wheel (10). The track (7) is arranged around the outside of the drive wheel (1), the tension wheel (10) and each support wheel (31) to form a closed walking track structure.

5. The floating tracked harvesting machinery chassis according to claim 2, characterized in that, The floating support (5) is also fixed with a limit post (51) on the upper part, and a limit baffle (61) is fixed on the chassis main frame (6). The limit baffle (61) is located on both sides of the limit post (51).

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