Folding chassis structure of crawler-type mountain harvester

Abstract

The utility model relates to the technical field of crawler-type mountain harvesters, in particular to a folding chassis structure of a crawler-type mountain harvester, which comprises a mounting frame, a mounting seat and a base. The mounting frames are fixedly connected to the side face of the mounting base, the mounting frames are divided into two groups, the side, away from the mounting base, of one group of mounting frames is fixedly connected with a limiting plate, the side, away from the mounting base, of the other group of mounting frames is fixedly connected with a telescopic plate, and the telescopic plate is slidably connected to the bottom of the limiting plate. The sliding rod is matched with the limiting groove, the function of the reset spring is combined, unfolding or folding of the chassis without an extra power source is achieved, meanwhile, in the folding or unfolding process, the base, the limiting plate and the telescopic plate move synchronously, and stable folding and unfolding of the chassis are achieved through meshing transmission of the linkage gear and the sliding rack. The chassis structure is more compact, and the transportation and storage space is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of tracked mountain harvesters, and in particular to a folding chassis structure for a tracked mountain harvester. Background Technology

[0002] Tracked mountain harvesters, as agricultural machinery designed specifically for complex terrain, are widely used in mountainous areas, hills, and other uneven terrains. Compared with traditional wheeled harvesters, the tracked design provides better terrain adaptability and passability, effectively distributes the weight of the machine, reduces ground indentations, and improves work efficiency. With the diversification of operating environments, chassis design has become a key part of ensuring the stability and mobility of tracked mountain harvesters.

[0003] Existing harvester chassis structures typically employ fixed or simple detachable connection methods, lacking efficient and stable mechanical folding structures. This results in a bulky overall structure after the harvester chassis is disassembled from the harvester body, occupying excessive storage space and hindering transportation and storage. Furthermore, the lack of a reliable folding mechanism makes manual disassembly and reassembly cumbersome, impacting operational efficiency. This is particularly problematic in mountainous or complex terrain environments, hindering flexible equipment scheduling and use. In addition, most existing foldable chassis rely on hydraulic or electronic control systems for adjustment, increasing manufacturing costs and requiring additional power sources. The complexity of control components also reduces system reliability.

[0004] Therefore, to address the aforementioned existing problems, this utility model employs a sliding rod in conjunction with a limiting groove and a return spring to achieve chassis unfolding or folding without an additional power source, while ensuring its limiting position and stability under different working conditions. Simultaneously, during folding or unfolding, the base, limiting plate, and telescopic plate move synchronously. Through the meshing transmission of the linkage gear and sliding rack, the chassis folds and unfolds smoothly, making the chassis structure more compact and effectively reducing transportation and storage space. After unfolding, the mounting frame can be fully connected to the harvester, and the mounting base connects to an external motor. The rubber tracks possess excellent flexibility and wear resistance, adapting to complex mountainous terrain and reducing slippage and wear, thereby improving the adaptability and overall service life of the chassis structure and enhancing the stability and safety of mountain operations. Utility Model Content

[0005] To overcome the common folding chassis structure of tracked mountain harvesters, existing harvester chassis are mostly fixed or simply disassembled structures, lacking efficient and stable mechanical folding mechanisms. After disassembly, they still occupy space, making them inconvenient for storage and transportation. At the same time, manual disassembly and assembly are cumbersome, affecting operational efficiency, especially in complex terrain where flexible scheduling is not advisable. In addition, existing folding chassis mostly rely on hydraulic or electronic control systems, increasing costs and power requirements, and the control is complex, affecting reliability.

[0006] The technical solution of this utility model is as follows: a folding chassis structure for a tracked mountain harvester, including a mounting frame, a mounting base, and a base; the mounting frame is fixedly connected to the side of the mounting base, and the mounting frame is divided into two groups. One group of the mounting frame has a limiting plate fixedly connected to the side away from the mounting base, and the other group of the mounting frame has a telescopic plate fixedly connected to the side away from the mounting base. The telescopic plate is slidably connected to the bottom of the limiting plate. The base is divided into two groups. One group of the base is fixedly connected to the side of the limiting plate away from the mounting frame, and the other group of the base is fixedly connected to the side of the telescopic plate away from the mounting frame.

[0007] Preferably, the mounting bracket has a trapezoidal structure, the mounting bracket and the mounting base are an integrated structure, the limiting plate and the telescopic plate are made of aluminum alloy, and the base is located near the bottom of the mounting bracket.

[0008] Preferably, a rubber track is rotatably connected to the side of the mounting base away from the mounting frame, a drive wheel is rotatably connected to the inner wall of the rubber track, and a sprocket is engaged on the inner wall of the rubber track. The drive wheel and the sprocket are rotatably connected to the side of the mounting base away from the mounting frame. The drive wheel is equidistantly installed near the bottom of the mounting base, and the sprockets are symmetrically installed near both ends of the mounting base.

[0009] Preferably, the telescopic plate has a sliding block slidably connected inside, a sliding rod is fixedly connected to the top of the sliding block, a handle is fixedly connected to the end of the sliding rod away from the sliding block, and a return spring and a limit rod are fixedly connected to the side of the sliding block.

[0010] Preferably, the end of the return spring away from the sliding block is fixedly connected to the inside of the telescopic plate, the limiting rod is slidably connected to the inside of the telescopic plate, the return spring is sleeved on the outside of the limiting rod, a limiting groove is formed inside the limiting plate, and the sliding rod is slidably connected to the inside of the limiting groove.

[0011] Preferably, a connecting plate is slidably connected to the top of the base, and a connecting strip is fixedly connected to the side of the connecting plate. The connecting strip is symmetrically installed at both ends of the connecting plate, and a sliding rack is fixedly connected to the end of the connecting strip away from the connecting plate. The connecting strip and the sliding rack are slidably connected to the top of the base, and a linkage gear meshes on the outer wall of the sliding rack. The linkage gear is rotatably connected to the top of the base.

[0012] Preferably, the linkage gears are divided into two groups. The top of one group of linkage gears is fixedly connected to a first connecting rod, and the top of the other group of linkage gears is fixedly connected to a second connecting rod. The end of the first connecting rod away from the linkage gear is rotatably connected to the inside of the second connecting rod. The base has a sliding groove inside, and the bottom of the connecting plate is fixedly connected to a limiting slider, which is slidably connected inside the sliding groove.

[0013] The beneficial effects of this utility model are:

[0014] 1. When the chassis needs to be folded or unfolded, grasp and pull the handle to disengage the sliding rod from one end of the limiting groove and move it along the limiting groove until it reaches the other end. Then release the handle. At this time, the return spring pushes the sliding block to automatically return to its original position, fixing the sliding rod to the other end of the limiting groove, thus achieving limit locking. The movement of the sliding rod drives the limiting plate and the telescopic plate to move in opposite directions. The limiting rod ensures the stability of the sliding block and the return spring, preventing them from shifting or deviating, thus realizing the rapid folding or unfolding of the chassis and ensuring stable operation.

[0015] 2. During the movement of the limiting plate and the telescopic plate, the base moves synchronously, causing the connecting plate and the connecting strip to slide. The connecting strip pushes the sliding rack to move, thereby driving the linkage gear to rotate, which in turn drives the first link and the second link to rotate, thereby pushing the two sets of bases to unfold or fold in opposite directions. At the same time, the limiting slider restricts the connecting plate from moving excessively, ensuring the overall stability of the chassis structure, and ultimately achieving stable unfolding or folding of the chassis.

[0016] 3. When the chassis is unfolded and put into use, the mounting frame is connected to the harvester, and the mounting base is connected to the motor drive sprocket to drive the rubber track. Due to its flexibility and wear resistance, the rubber track can adapt to complex terrain and reduce slippage and wear, thereby improving the adaptability and service life of the harvester chassis. Attached Figure Description

[0017] Figure 1 The diagram shown is a top view of the overall structure of this utility model;

[0018] Figure 2 The diagram shown is a bottom view of the overall structure of this utility model;

[0019] Figure 3 The diagram shown is a schematic representation of the limiting plate structure of this utility model.

[0020] Figure 4 The diagram shown is a schematic representation of the telescopic plate structure of this utility model.

[0021] Figure 5 The diagram shown is a schematic representation of the base structure of this utility model.

[0022] Figure 6 The diagram shown is a schematic diagram of the limiting slider structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Mounting bracket; 2. Mounting base; 201. Rubber track; 202. Drive wheel; 203. Sprocket; 3. Limiting plate; 4. Telescopic plate; 401. Sliding block; 402. Sliding rod; 403. Handle; 404. Return spring; 405. Limiting rod; 406. Limiting groove; 5. Base; 501. Connecting plate; 502. Connecting strip; 503. Sliding rack; 504. Linkage gear; 505. First connecting rod; 506. Second connecting rod; 507. Slide groove; 508. Limiting slider. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 This utility model provides a technical solution: a folding chassis structure for a tracked mountain harvester, including a mounting frame 1, a mounting base 2, and a base 5; the mounting frame 1 is fixedly connected to the side of the mounting base 2, and the mounting frame 1 is divided into two groups. One group of mounting frames 1 is fixedly connected to a limiting plate 3 on the side away from the mounting base 2, and the other group of mounting frames 1 is fixedly connected to a telescopic plate 4 on the side away from the mounting base 2. The telescopic plate 4 is slidably connected to the bottom of the limiting plate 3. The base 5 is divided into two groups. One group of base 5 is fixedly connected to the side of the limiting plate 3 away from the mounting frame 1, and the other group of base 5 is fixedly connected to the side of the telescopic plate 4 away from the mounting frame 1.

[0026] Mounting bracket 1 has a trapezoidal structure. Mounting bracket 1 and mounting base 2 are integrated structures. Limiting plate 3 and telescopic plate 4 are made of aluminum alloy. Base 5 is located near the bottom of mounting bracket 1 to enhance the overall resistance to deformation and improve the stability of the chassis structure when operating in complex terrain.

[0027] A rubber track 201 is rotatably connected to the side of the mounting base 2 away from the mounting frame 1. A drive wheel 202 is rotatably connected to the inner wall of the rubber track 201. A sprocket 203 is engaged on the inner wall of the rubber track 201. The drive wheel 202 and the sprocket 203 are rotatably connected to the side of the mounting base 2 away from the mounting frame 1. The drive wheel 202 is equidistantly installed near the bottom of the mounting base 2, and the sprocket 203 is symmetrically installed near both ends of the mounting base 2. This optimizes power transmission, improves track drive efficiency, and the drive wheel 202 enhances track guidance, ensuring smooth operation.

[0028] The telescopic plate 4 has a sliding block 401 inside, a sliding rod 402 is fixedly connected to the top of the sliding block 401, a handle 403 is fixedly connected to the end of the sliding rod 402 away from the sliding block 401, and a return spring 404 and a limit rod 405 are fixedly connected to the side of the sliding block 401. The handle 403 improves the ease of use and enables convenient folding and unfolding operations.

[0029] The end of the return spring 404 away from the sliding block 401 is fixedly connected to the inside of the telescopic plate 4. The limiting rod 405 is slidably connected to the inside of the telescopic plate 4. The return spring 404 is sleeved on the outside of the limiting rod 405. A limiting groove 406 is opened inside the limiting plate 3. The sliding rod 402 is slidably connected to the inside of the limiting groove 406. The limiting groove 406 guides and limits the sliding rod 402 to prevent it from loosening during use.

[0030] A connecting plate 501 is slidably connected to the top of the base 5. A connecting strip 502 is fixedly connected to the side of the connecting plate 501. The connecting strip 502 is symmetrically installed at both ends of the connecting plate 501. A sliding rack 503 is fixedly connected to the end of the connecting strip 502 away from the connecting plate 501. The connecting strip 502 and the sliding rack 503 are slidably connected to the top of the base 5. A linkage gear 504 meshes on the outer wall of the sliding rack 503. The linkage gear 504 is rotatably connected to the top of the base 5 to achieve synchronous transmission and ensure the coordination of folding and unfolding.

[0031] The linkage gears 504 are divided into two groups. The top of one group of linkage gears 504 is fixedly connected to the first connecting rod 505, and the top of the other group of linkage gears 504 is rotatably fixed to the second connecting rod 506. The end of the first connecting rod 505 away from the linkage gears 504 is rotatably connected to the inside of the second connecting rod 506. The base 5 has a sliding groove 507 inside. The bottom of the connecting plate 501 is fixedly connected to the limiting slider 508. The limiting slider 508 is slidably connected inside the sliding groove 507 to prevent the connecting plate 501 from moving excessively, thereby causing the base 5 to be over-expanded or folded, and improving the service life.

[0032] Working principle: According to Figures 1 to 2 When the chassis is unfolded and put into use, the mounting frame 1 can be directly connected to the harvester as a whole. The mounting base 2 is connected to an external motor, which transmits power to the sprocket 203. The sprocket 203 drives the rubber track 201 to operate. The transmission wheel 202 further transmits power and guides the movement of the rubber track 201. Due to its flexibility and wear resistance, the rubber track 201 can withstand heavy pressure and adapt to complex terrain, effectively reducing slippage and wear, thereby improving the adaptability of the mountain harvester chassis structure and its overall service life.

[0033] according to Figures 3 to 6When the chassis needs to be folded or unfolded, first, hold the handle 403 and pull the handle 403 with external force to overcome the elastic force of the return spring 404, so that the sliding rod 402 is disengaged from one end of the limiting groove 406. Then, continue to pull the handle 403 to move the sliding rod 402 along the limiting groove 406 until it reaches the other end. Then, release the handle 403. At this time, under the elastic force of the return spring 404, the sliding block 401 is pushed to automatically reset, fixing the sliding rod 402 to the other end of the limiting groove 406, realizing the limiting lock. The movement of the sliding rod 402 drives the limiting plate 3 and the telescopic plate 4 to move in opposite directions. At the same time, the limiting rod 405 ensures the stability of the sliding block 401 and the return spring 404, preventing them from being displaced or deviated.

[0034] During this process, the base 5 moves synchronously with the limiting plate 3 and the telescopic plate 4. At this time, the connecting plate 501 at the top of the base 5 slides, thereby driving the connecting bar 502 to slide. The connecting bar 502 pushes the sliding rack 503 to move, and through meshing with the linkage gear 504, drives the linkage gear 504 to rotate. The rotation of the linkage gear 504 further drives the first connecting rod 505 and the second connecting rod 506 to rotate around the linkage gear 504 as the axis. As the rotation angle gradually decreases, the first connecting rod 505 and the second connecting rod 506 maintain a fixed length, thereby pushing the two sets of bases 5 to unfold or fold in opposite directions. At the same time, the limiting slider 508 slides synchronously with the connecting plate 501, sliding from one end to the other end in the slide groove 507 to limit the excessive movement of the connecting plate 501, ensuring the overall stability of the chassis structure, and finally realizing the stable unfolding or folding of the chassis.

[0035] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A folding chassis structure for a tracked mountain harvester, comprising a mounting frame (1), a mounting base (2), and a base (5); characterized in that: The mounting bracket (1) is fixedly connected to the side of the mounting base (2). The mounting bracket (1) is divided into two groups. One group of the mounting bracket (1) is fixedly connected to a limiting plate (3) on the side away from the mounting base (2). The other group of the mounting bracket (1) is fixedly connected to a telescopic plate (4) on the side away from the mounting base (2). The telescopic plate (4) is slidably connected to the bottom of the limiting plate (3). The base (5) is divided into two groups. One group of the base (5) is fixedly connected to the side of the limiting plate (3) away from the mounting bracket (1). The other group of the base (5) is fixedly connected to the side of the telescopic plate (4) away from the mounting bracket (1).

2. The folding chassis structure of a tracked mountain harvester according to claim 1, characterized in that: The mounting bracket (1) has a trapezoidal structure. The mounting bracket (1) and the mounting base (2) are an integrated structure. The limiting plate (3) and the telescopic plate (4) are made of aluminum alloy. The base (5) is located near the bottom of the mounting bracket (1).

3. The folding chassis structure of a tracked mountain harvester according to claim 1, characterized in that: A rubber track (201) is rotatably connected to the side of the mounting base (2) away from the mounting frame (1). A drive wheel (202) is rotatably connected to the inner wall of the rubber track (201). A sprocket (203) is engaged on the inner wall of the rubber track (201). The drive wheel (202) and the sprocket (203) are rotatably connected to the side of the mounting base (2) away from the mounting frame (1). The drive wheels (202) are equidistantly installed near the bottom of the mounting base (2), and the sprockets (203) are symmetrically installed near both ends of the mounting base (2).

4. The folding chassis structure of a tracked mountain harvester according to claim 1, characterized in that: The telescopic plate (4) is slidably connected to a sliding block (401), and a sliding rod (402) is fixedly connected to the top of the sliding block (401). A handle (403) is fixedly connected to the end of the sliding rod (402) away from the sliding block (401), and a return spring (404) and a limit rod (405) are fixedly connected to the side of the sliding block (401).

5. The folding chassis structure of a tracked mountain harvester according to claim 4, characterized in that: The end of the return spring (404) away from the sliding block (401) is fixedly connected to the inside of the telescopic plate (4). The limiting rod (405) is slidably connected to the inside of the telescopic plate (4). The return spring (404) is sleeved on the outside of the limiting rod (405). The limiting plate (3) has a limiting groove (406) inside. The sliding rod (402) is slidably connected to the inside of the limiting groove (406).

6. The folding chassis structure of a tracked mountain harvester according to claim 1, characterized in that: A connecting plate (501) is slidably connected to the top of the base (5), and a connecting strip (502) is fixedly connected to the side of the connecting plate (501). The connecting strip (502) is symmetrically installed at both ends of the connecting plate (501). A sliding rack (503) is fixedly connected to the end of the connecting strip (502) away from the connecting plate (501). The connecting strip (502) and the sliding rack (503) are slidably connected to the top of the base (5). A linkage gear (504) meshes on the outer wall of the sliding rack (503). The linkage gear (504) is rotatably connected to the top of the base (5).

7. The folding chassis structure of a tracked mountain harvester according to claim 6, characterized in that: The linkage gears (504) are divided into two groups. The top of one group of linkage gears (504) is fixedly connected to a first connecting rod (505), and the top of the other group of linkage gears (504) is fixedly connected to a second connecting rod (506). The end of the first connecting rod (505) away from the linkage gear (504) is rotatably connected to the inside of the second connecting rod (506). The base (5) has a sliding groove (507) inside. The bottom of the connecting plate (501) is fixedly connected to a limiting slider (508), and the limiting slider (508) is slidably connected inside the sliding groove (507).

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