A segmented self-cleaning rubber crawler and a traveling device

Abstract

The present invention relates to the technical field of rubber crawler tracks, and specifically to a segmented self-cleaning rubber crawler track and a traveling device, which includes an annular crawler track body. A core metal is arranged inside the crawler track body, and lugs are arranged outside the crawler track body. A first self-cleaning block is arranged on a certain pitch or multiple pitches inside the crawler track body. A second self-cleaning block is further arranged inside the crawler track body. The second self-cleaning block and the first self-cleaning block are located on the pitches of the same section of the crawler track body. The second self-cleaning block and the first self-cleaning block are independent of each other. In the length direction of the crawler track body, the second self-cleaning block is located on one side of the first self-cleaning block. In the width direction of the crawler track body, the second self-cleaning block is closer to the core metal than the first self-cleaning block. In the present invention, the additional rubber compound weight of the self-cleaning block is 50% of that in the market, which greatly reduces the cost. At the same time, when the crawler track bends around the drive wheel, the bending stress drops by more than 30%. The segmented type can disperse the stress during cleaning, improve the service life of the crawler track, and reduce the manufacturing cost of the crawler track.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber tracks, and particularly to a segmented self-cleaning rubber track and a traveling device. Background Art

[0002] At present, agricultural equipment machines using rubber tracks as traveling components generally operate in wet fields, where the soil of the fields has high viscosity and is mixed with various weeds and rice straws. For the annular rubber track, lugs are provided on the grounding side, and the lugs are distributed according to the pitch of the driving wheel. In the wet field environment, the track will sink into the muddy soil. As the track rotates around the annular gear train driven by the machine's driving wheel, the soil, weeds, and rice straws attached to the surface of the lugs and the roller side will be thrown onto the brackets, idlers, idler brackets, and carrier wheel crossbeams of the machine chassis as the track rotates. As the machine keeps moving, the attachments on the brackets, idlers, idler brackets, and carrier wheel crossbeams will gradually accumulate, increasing the running resistance of the machine, affecting the operation of the idlers and carrier wheels, and accelerating the wear of the track. After the machine completes the task, it is difficult to clean the attachments on the machine chassis. If not cleaned thoroughly, with the solidification of the attachments, when the machine runs for the second time, it will cause wear of the various components of the machine chassis and damage to the track.

[0003] Therefore, mud-scraping tracks have emerged in the market. For example, the Chinese utility model patent (Publication No.: CN205930970U, Publication Date: February 8, 2017) discloses a rubber track for vehicles with a mud-scraping structure. Iron teeth are fixedly buried at equal pitches in the length direction of the annular rubber elastomer according to the pitch of the driving wheel. A steel cord is wound around the outside of the iron teeth in a ring shape. Patterns or gripping teeth are arranged at equal pitches on the outer surface of the rubber elastomer. Mud-scraping blocks are provided on the iron teeth at a certain pitch or multiple pitches on the inner end surface and the lower surface on the inner side of the annular rubber elastomer. The advantages are: the structure of the present invention is simple, the production cost is low, and the practicability is strong. It can automatically clean the attachments such as soil, weeds, and rice debris on the rubber track of the vehicle while walking under muddy working conditions, and is mainly applicable to vehicles using rubber tracks on muddy lands such as wetlands.

[0004] However, the above-mentioned mud-scraping track has the following problems: The mud-scraping blocks are arranged above the iron teeth, and the rubber track with a pitch interval and arranged side by side. Because the mud-scraping blocks are designed as trapezoids, with a wider inner width and a narrower outer width, in actual use, the inner side is less stressed and the outer side is more stressed, and the wider mud-scraping blocks on the inner side will affect the bending of the track.

[0005] Therefore, it is necessary to provide a rubber track with a more reasonable design and evenly distributed stress to ensure that the attachments on the machine chassis brackets can be automatically cleaned without affecting the bending of the track. Summary of the Invention

[0006] To solve the above problems, the object of the present invention is to provide a segmented self-cleaning rubber track and a traveling device, which can automatically clean attachments such as silt on the machine chassis bracket through the rotation of the rubber track during the operation of the machine. The self-cleaning blocks are distributed in segments according to different cleaning positions, reducing the influence on the bending stress of the track, and designing self-cleaning blocks of different sizes according to the cleaning strength of different parts, reducing the rubber weight of the self-cleaning blocks.

[0007] To achieve the object of the present invention, the following technical solutions are adopted for implementation:

[0008] A segmented self-cleaning rubber track, the track includes an annular track body, a core metal is arranged at intervals along the length direction on the inner side of the track body, and a flower block corresponding to the position of the core metal is arranged on the outer side of the track body; a self-cleaning block one is arranged on a certain pitch or multiple pitches on the inner side of the track body; in the width direction of the track body, the position of the self-cleaning block one corresponds to that of the core metal and the self-cleaning block one is close to the end of the track body, and the outer end of the self-cleaning block one extends outward, bypasses the end of the track body, and is connected to the side surface of the flower block;

[0009] A self-cleaning block two is further arranged on the inner side of the track body. The self-cleaning block two and the self-cleaning block one are located on the pitches of the same section of the track body. The self-cleaning block two and the self-cleaning block one are independent of each other. In the length direction of the track body, the self-cleaning block two is located on one side of the self-cleaning block one; in the width direction of the track body, the self-cleaning block two is closer to the core metal than the self-cleaning block one.

[0010] Preferably, the width of the self-cleaning block one is 20-40 mm.

[0011] Preferably, the width of the self-cleaning block two is 10-20 mm.

[0012] Preferably, in the length direction of the track body, the self-cleaning block two is located at the middle position between two adjacent core metals.

[0013] Preferably, the self-cleaning block two is a narrow rectangle.

[0014] Preferably, in the width direction of the track body, the center of the self-cleaning block one corresponds to the center of the core metal.

[0015] A crawler traveling device includes the above-mentioned rubber track.

[0016] Preferably, it further includes a vehicle frame, a driving wheel, a tensioning wheel, a chassis frame and a carrier sprocket frame are arranged on the vehicle frame, several idler wheels are arranged on the chassis frame, a carrier sprocket is arranged on the carrier sprocket frame, and the track body is wound around a gear train composed of the driving wheel, the tensioning wheel, the idler wheels and the carrier sprocket; the end of the core metal is a driving tooth, and the driving tooth is engaged on the driving wheel, and the driving teeth are arranged according to the pitch of the driving wheel.

[0017] Preferably, the contour of the self-cleaning block 1 is adapted to the carrier sprocket bracket, and the gap between the two is 5-10 mm.

[0018] Preferably, the position of the self-cleaning block 2 corresponds to the chassis bracket, and the gap between the two is 5-10 mm.

[0019] In summary, the advantages of the present invention are the segmented self-cleaning rubber track. The additional rubber weight of its self-cleaning block is 50% of that on the current market, greatly reducing the cost. At the same time, when the track bends around the drive wheel, the bending stress drops by more than 30%. Moreover, the segmented type can disperse the stress during cleaning, extend the service life of the track, and reduce the manufacturing cost of the track. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a side view of the cooperation between the existing rubber track and the machine wheel system.

[0021] Figure 2 It is a front view of the cooperation between the existing rubber track and the machine wheel system.

[0022] Figure 3 It is a front view of the cooperation between the existing mud-scraping rubber track and the machine wheel system.

[0023] Figure 4 It is a three-dimensional view of the existing mud-scraping rubber track.

[0024] Figure 5 It is a top view of the existing mud-scraping rubber track.

[0025] Figure 6 It is a front view of the cooperation between the segmented self-cleaning rubber track of the present invention and the machine wheel system.

[0026] Figure 7 It is a three-dimensional view of the segmented self-cleaning rubber track of the present invention.

[0027] Figure 8 It is a top view of the segmented self-cleaning rubber track of the present invention.

[0028] Figure 9 It is a bending stress diagram of the mud-scraping track on the existing market and the segmented self-cleaning rubber track of the present invention through computer analysis. DETAILED DESCRIPTION OF THE INVENTION

[0029] Such as Figure 1 、 Figure 6As shown in the figure, a crawler walking device includes a frame and a rubber crawler. A driving wheel 2, a tensioning wheel 7, a chassis frame 3, and a carrier roller frame 4 are provided on the frame. A plurality of idler wheels 5 are provided on the chassis frame 3, a carrier roller 8 is provided on the carrier roller frame 4, and a tensioning device 6 is provided on the tensioning wheel 7. The rubber crawler is wound around a gear train composed of the driving wheel 2, the tensioning wheel 7, the idler wheels 5, and the carrier roller 8.

[0030] As Figure 6 shown in the figure, the rubber crawler includes an annular crawler body 11. Core bars 12 are arranged at intervals along the length direction on the inner side of the crawler body 11. The ends of the core bars 12 are driving teeth 13, and the driving teeth 13 are engaged with the driving wheel 2 and arranged according to the pitch of the driving wheel 2. Block patterns 14 corresponding to the positions of the core bars 12 are provided on the outer side of the crawler body 11.

[0031] Self-cleaning blocks one 17 are provided on one pitch or multiple pitches on the inner side of the crawler body 11. In the width direction of the crawler body 11, the positions of the self-cleaning blocks one 17 correspond to those of the core bars 12 and the self-cleaning blocks one 17 are close to the ends of the crawler body 11. The outer ends of the self-cleaning blocks one 17 extend outward, bypass the ends of the crawler body 11, and are connected to the sides of the block patterns 14.

[0032] The core bars 12 are embedded in the inner side of the crawler body 11 according to the pitch of the driving wheel 2 to form the driving teeth 13 that cooperate with the driving wheel 2, and the block patterns 14 are laid on the outer side of the crawler body according to the pitch of the driving wheel 2. On one side belt body edge 15 corresponding to any driving tooth 13 in the circumferential length direction, self-cleaning blocks one 17 are provided. The central positions thereof correspond to the driving teeth 13, the outer contour thereof has a gap of 5-10 mm from the carrier roller frame 4, and extends to the block patterns 14 on the grounding side and is connected to the block patterns 14 for removing the attachments 9 thereon. Since the cleaning force here is relatively large, the width of the self-cleaning blocks one is generally designed to be 20-40 mm.

[0033] On one side of the above-mentioned self-cleaning blocks one 17 and between two driving teeth 13, self-cleaning blocks two 16 are provided. The outer contour thereof has a gap of 5-10 mm from the chassis frame 3 for cleaning the attachments thereon. Since the cleaning force here is relatively small, the width of the self-cleaning blocks is generally designed to be 10-20 mm.

[0034] As Figure 9 shown in the figure, when the stress conditions of each part of the crawler are simulated by a computer during crawler bending, it can be found from the figure that the bending stress of the rubber crawler of the present invention is about 30% lower than that of the mud scraping crawlers currently used in the market. As Figure 7 and 8 shown in the figure, the self-cleaning section blocks of the rubber crawler of the present invention are segmented, which can effectively disperse the stress during cleaning the attachments 9 and improve the service life of the crawler.

Claims

1. A segmented self-cleaning rubber track. The track includes an annular track body (11). Along the length direction on the inner side of the track body (11), there are spaced core metals (12). On the outer side of the track body (11), there are flower blocks (14) corresponding to the positions of the core metals (12); on a certain pitch or multiple pitches on the inner side of the track body (11), there is a first self-cleaning block (17); in the width direction of the track body (11), the position of the first self-cleaning block (17) corresponds to that of the core metal (12) and the first self-cleaning block (17) is close to the end of the track body (11). The outer end of the first self-cleaning block (17) extends outwards, bypasses the end of the track body (11), and is connected to the side surface of the flower block (14); characterized in that, on the inner side of the track body (11), there is also a second self-cleaning block (16). The second self-cleaning block (16) and the first self-cleaning block (17) are located on the same pitch of the track body (11). The second self-cleaning block (16) and the first self-cleaning block (17) are independent of each other. In the length direction of the track body (11), the second self-cleaning block (16) is located on one side of the first self-cleaning block (17); in the width direction of the track body (11), the second self-cleaning block (16) is closer to the core metal (12) than the first self-cleaning block (17).

2. The segmented self-cleaning rubber crawler according to claim 1, wherein The width of the first self-cleaning block (17) is 20 - 40 mm.

3. A segmented self-cleaning rubber crawler according to claim 1, characterized in that, The width of the second self-cleaning block (16) is 10 - 20 mm.

4. A segmented self-cleaning rubber crawler according to claim 1, characterized in that, In the length direction of the track body (11), the second self-cleaning block (16) is located at the middle position between two adjacent core metals (12).

5. A segmented self-cleaning rubber crawler according to claim 1, wherein The second self-cleaning block (16) is a narrow rectangle.

6. The segmented self-cleaning rubber track according to claim 1, characterized in that, In the width direction of the track body (11), the center of the first self-cleaning block (17) corresponds to the center of the core metal (12).

7. A crawler travel device, characterized in that, A rubber track comprising any one of claims 1 - 6.

8. A crawler travel device according to claim 7, characterized in that, It further includes a vehicle frame. On the vehicle frame, there are a driving wheel (2), a tensioning wheel (7), a chassis frame (3), and a carrier sprocket frame (4). On the chassis frame (3), there are several idler wheels (5). On the carrier sprocket frame (4), there is a carrier sprocket (8). The track body (11) is wound around the gear train composed of the driving wheel (2), the tensioning wheel (7), the idler wheels (5), and the carrier sprocket (8); the end of the core metal (12) is a driving tooth (13). The driving teeth (13) are fitted on the driving wheel (2), and the driving teeth (13) are arranged according to the pitch of the driving wheel (2).

9. A crawler travel device according to claim 8, characterized in that, The contour of the first self-cleaning block (17) is adapted to the carrier sprocket frame (4), and the gap between them is 5 - 10 mm.

10. A crawler travel device according to claim 8, characterized in that, The position of the second self-cleaning block (16) corresponds to the chassis frame (3), and the gap between them is 5 - 10 mm.

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