Rotary cultivator self-propelled track capable of running stably

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a rotary cultivator self-propelled track capable of running stably, which comprises a rack, track bodies are mounted at the left end and the right end of the rack, and protective cases are fixedly mounted at the left end and the right end of the rack and located on the sides, away from each other, of the two sets of track bodies. Tensioning mechanisms are installed at the front ends of the inner sides of the two sets of protection machine shells correspondingly, operation doors are rotationally connected to the positions, corresponding to the tensioning mechanisms, of the outer sides of the two sets of protection machine shells correspondingly, and tightness adjusting wheels are rotationally connected to the positions, located on the inner sides of the crawler belt bodies, of the front ends of the two sets of tensioning mechanisms correspondingly. Compared with an existing self-propelled crawler belt of the rotary cultivator, the self-propelled crawler belt of the rotary cultivator has the advantages that a tensioning mechanism on the inner side of the self-propelled crawler belt of the rotary cultivator can be protected through the design, meanwhile, the tensioning degree can be conveniently adjusted, and stable running of the rotary cultivator is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a self-propelled crawler of a rotary tiller with stable travel. Background Art

[0002] The crawler rotary tiller adopts a crawler walking mechanism, tractor drive principle, and independent three-point suspension. It is not only an original creation, but also integrates the functions of various tillage machinery. It combines the advantages of various models. It is lightweight and has a large crawler contact area, which makes up for the insufficient paddy field passing performance of wheeled tractors. It is powered by a diesel engine and can be equipped with different tools or blades to perform rotary tillage and wide-width ridging operations. It has the characteristics of simple structure, wide functions, high efficiency, easy operation, and good paddy field passing performance. The rotary tiller often causes changes in the tightness of the crawler during walking operations. If the crawler is too loose, the crawler will break due to impact or derail during the walking process.

[0003] In order to keep the rotary tiller running smoothly, the track of the rotary tiller needs to be kept in a tensioned state. However, the track tensioning mechanism cannot be adjusted in time after the track becomes loose due to changes in road conditions, and the tensioning degree is difficult to control. Since the tensioning mechanism is located on the inner side of the track and usually has no protective casing, it is directly exposed to air, dust, and even muddy water. When adjusting it, it needs to be cleaned before operation, which is not only cumbersome to operate but also affects its service life.

[0004] Therefore, it is particularly important to design a self-propelled crawler of a rotary tiller with stable travel to solve the above-mentioned defects. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model designs a smoothly running self-propelled crawler of a rotary tiller. The self-propelled crawler of a rotary tiller aims to solve the technical problem that the tensioning mechanism on the inner side of the self-propelled crawler of a rotary tiller in the prior art is located on the inner side of the crawler usually without a protective shell, and is directly exposed to air, dust, and even mud and water, and needs to be cleaned before operation when adjusting it, which is not only cumbersome to operate but also affects its service life.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A self-propelled crawler of a rotary tiller with smooth travel comprises a frame, wherein crawler bodies are installed at both left and right ends of the frame, and protective casings are fixedly installed at both left and right ends of the frame and on the side away from two groups of crawler bodies, tensioning mechanisms are installed at the front ends of the inner sides of the two groups of protective casings, operating doors are rotatably connected at positions corresponding to the tensioning mechanisms on the outer sides of the two groups of protective casings, tension adjusting wheels are rotatably connected at the front ends of the two groups of tensioning mechanisms and on the inner sides of the crawler bodies, rotating wheels are rotatably connected at the rear ends of the inner sides of the two groups of protective casings, and multiple groups of load-bearing wheels are rotatably connected at the upper and lower ends of the protective casing and on the inner sides of the crawler bodies.

[0008] As a preferred solution of the utility model, a plurality of groups of engagement blocks are fixedly connected to the inner side of the track body, and the outer sides of the tension adjustment wheel and the rotating wheel are both engaged with the engagement blocks.

[0009] As a preferred solution of the utility model, a plurality of groups of anti-skid bumps are fixedly connected to the outer side of the track body, and a guide groove is provided on the outer side of the track body and between the plurality of groups of anti-skid bumps.

[0010] As a preferred solution of the utility model, the tensioning mechanism includes a connecting frame rotatably connected to the outside of the tension adjustment wheel, the rear end of the connecting frame is slidably connected to a connecting rod, the rear end of the connecting rod is fixedly connected to a movable disk, a spring is sleeved on the outside of the connecting rod and located between the connecting frame and the movable disk, and the back side of the movable disk is rotatably connected to an adjusting screw.

[0011] As a preferred solution of the utility model, the inner side of the front end of the connecting frame is rotatably connected to the tension adjustment wheel through a first rotating shaft, the front end of the connecting rod is fixedly connected to a limiting block, the outer side of the movable disk is rotatably connected to two sets of rollers, and the adjusting screw is threadably connected to the inner side of the frame through a connecting sleeve.

[0012] As a preferred solution of the utility model, a door handle is fixedly connected to the front end of the outer side of the operating door, and the outer side of the operating door and the upper and lower sides of the door handle are fixedly connected to the protective casing through locks.

[0013] As a preferred solution of the utility model, the inner sides of the multiple groups of load-bearing wheels are rotatably connected with a second rotating shaft, the left and right ends of the second rotating shaft are respectively mounted on the inner sides of the frame and the protective casing, and the upper and lower ends of the frame and the protective casing and located on the outer sides of the second rotating shaft are fixedly installed with fixing plates.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is designed that when the crawler body is in use, the multiple groups of anti-skid protrusions on the outside of the crawler body can increase the friction between the crawler body and the ground, thereby ensuring the smooth travel of the rotary tiller. At the same time, the design of the guide groove can guide the sludge attached to the outside of the crawler body during travel, and it can fall off automatically as the rotary tiller travels. When the tension adjusting wheel is in use, the connecting frame is continuously pushed up under the pressure of the spring, and the tension adjusting wheel is located on the inner side of the crawler body under the connection of the first rotating shaft to ensure the tensioning state of the crawler body. When the tensioning degree is adjusted, the adjusting screw is rotated under the connection of the connecting sleeve to drive the moving plate to move, and the connecting rod is connected to the connecting rod. Next, push the connecting frame to adjust the tension of the tension adjusting wheel. At the same time, the roller assists in rolling when the movable plate moves, so as to ensure the stability of the adjustment process. When the track body is in use, the entire tensioning mechanism is protected on the inside by the frame and the protective casing, so as to avoid dirt adhering to the tensioning mechanism and making it inconvenient to perform adjustment operations. When the tensioning mechanism needs to be adjusted, it is only necessary to release the lock on the operating door, and then open the operating door through the door handle to turn the adjusting screw to adjust the tension. Multiple sets of load-bearing wheels are installed at the upper and lower ends of the inner side of the track body through the second rotating shaft, which further ensures the smooth travel of the rotary tiller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the protective casing of the utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the tensioning mechanism of the utility model.

[0019] In the figure: 1. frame; 2. crawler body; 201. engagement block; 202. anti-skid protrusion; 203. guide groove; 3. protective casing; 4. tensioning mechanism; 401. connecting frame; 402. connecting rod; 403. moving plate; 404. spring; 405. adjusting screw; 406. first rotating shaft; 407. limiting block; 408. roller; 409. connecting sleeve; 5. operating door; 501. door handle; 502. lock; 6. tension adjusting wheel; 7. rotating wheel; 8. load-bearing wheel; 801. second rotating shaft; 802. fixing plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] Example:

[0022] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0023] A self-propelled crawler of a rotary tiller with smooth travel comprises a frame 1, crawler bodies 2 are installed at both left and right ends of the frame 1, protective casings 3 are fixedly installed at both left and right ends of the frame 1 and on the side away from two sets of crawler bodies 2, tensioning mechanisms 4 are installed at the front ends of the inner sides of the two sets of protective casings 3, operating doors 5 are rotatably connected at positions corresponding to the tensioning mechanisms 4 on the outer sides of the two sets of protective casings 3, tension adjusting wheels 6 are rotatably connected at the front ends of the two sets of tensioning mechanisms 4 and located on the inner sides of the crawler bodies 2, rotating wheels 7 are rotatably connected at the rear ends of the inner sides of the two sets of protective casings 3, and multiple sets of load-bearing wheels 8 are rotatably connected at the upper and lower ends of the protective casings 3 and located on the inner sides of the crawler bodies 2.

[0024] First, multiple groups of engaging blocks 201 are fixedly connected to the inner side of the track body 2, the outer side of the tension adjustment wheel 6 is engaged with the engaging blocks 201, and the outer sides of the tension adjustment wheel 6 and the rotating wheel 7 are engaged with the engaging blocks 201, so that the track body 2 moves with the rotation of the tension adjustment wheel 6 and the rotating wheel 7.

[0025] Furthermore, multiple groups of anti-skid protrusions 202 are fixedly connected to the outer side of the track body 2, and guide grooves 203 are opened on the outer side of the track body 2 and between the multiple groups of anti-skid protrusions 202. When the track body 2 is in use, the multiple groups of anti-skid protrusions 202 on its outer side can increase the friction between the track body 2 and the ground, thereby ensuring the smooth running of the rotary tiller. At the same time, the design of the guide grooves 203 can guide the sludge attached to the outer side of the track body 2 during driving, and it can fall off automatically as the rotary tiller runs.

[0026] Then, the tensioning mechanism 4 includes a connecting frame 401 rotatably connected to the outer side of the tension adjusting wheel 6, the rear end of the connecting frame 401 is slidably connected to a connecting rod 402, the rear end of the connecting rod 402 is fixedly connected to a moving disk 403, a spring 404 is sleeved on the outer side of the connecting rod 402 and located between the connecting frame 401 and the moving disk 403, the back side of the moving disk 403 is rotatably connected to an adjusting screw 405, the inner side of the front end of the connecting frame 401 is rotatably connected to the tension adjusting wheel 6 through a first rotating shaft 406, the front end of the connecting rod 402 is fixedly connected to a limiting block 407, the outer side of the moving disk 403 is rotatably connected to two sets of rollers 408, and the adjusting screw 405 is rotated through It is connected to the inner side of the frame 1 through the connecting sleeve 409 through a threaded connection. When the tension-adjusting wheel 6 is in use, the connecting frame 401 is continuously pushed up by the squeezing of the spring 404. Under the connection of the first rotating shaft 406, the tension-adjusting wheel 6 is located on the inner side of the track body 2 to ensure the tensioning state of the track body 2. When the tensioning degree is adjusted, the adjusting screw 405 is rotated under the connection of the connecting sleeve 409 to drive the movable plate 403 to move, and the connecting frame 401 is pushed under the connection of the connecting rod 402, so as to adjust the tensioning degree of the tension-adjusting wheel 6. At the same time, when the movable plate 403 moves, the roller 408 assists in rolling, so as to ensure the stability of the adjustment process.

[0027] Secondly, a door handle 501 is fixedly connected to the front end of the outer side of the operating door 5, and the outer side of the operating door 5 and the upper and lower sides of the door handle 501 are fixedly connected to the protective casing 3 through locks 502. When the track body 2 is in use, the entire tensioning mechanism 4 is protected on the inside by the frame 1 and the protective casing 3, thereby preventing dirt from adhering to the tensioning mechanism 4 and making it inconvenient to adjust the operation. When the tensioning mechanism 4 needs to be adjusted, it is only necessary to release the lock 502 to fix the operating door 5, and then open the operating door 5 through the door handle 501 to rotate the adjusting screw 405 to adjust the tensioning degree.

[0028] Finally, the inner side of multiple sets of load-bearing wheels 8 is rotatably connected to the second rotating shaft 801, and the left and right ends of the second rotating shaft 801 are respectively mounted on the inner side of the frame 1 and the protective casing 3, and the upper and lower ends of the frame 1 and the protective casing 3 and located on the outer side of the second rotating shaft 801 are fixedly installed with fixing plates 802. Multiple sets of load-bearing wheels 8 are installed on the upper and lower ends of the inner side of the crawler body 2 through the second rotating shaft 801, which further ensures the smooth driving of the rotary tiller. At the same time, the fixing plate 802 can be disassembled and maintained to enable the load-bearing wheels 8 to be disassembled and maintained.

[0029] In this embodiment, the implementation scenario is specifically as follows: the tension adjustment wheel 6 is meshed with the inner side of the crawler body 2 through multiple groups of engagement blocks 201, so that the crawler body 2 moves with the rotation of the tension adjustment wheel 6 and the rotating wheel 7. When the crawler body 2 is in use, the multiple groups of anti-skid protrusions 202 on the outer side thereof can increase the friction with the ground, thereby ensuring the smooth travel of the rotary tiller. At the same time, the design of the guide groove 203 can guide the sludge attached to the outer side of the crawler body 2 during travel, and it can fall off automatically as the rotary tiller travels. When the tension adjustment wheel 6 is in use, the connecting frame 401 is continuously pushed under the pressure of the spring 404, and the tension adjustment wheel 6 is located on the inner side of the crawler body 2 under the connection of the first rotating shaft 406 to ensure the tension state of the crawler body 2. When the tension is adjusted, the adjusting screw 405 is rotated under the connection of the connecting sleeve 409 to drive the moving disk 403 to move, and the connecting frame 401 is pushed under the connection of the connecting rod 402, thereby The tensioning degree of the tension adjusting wheel 6 is adjusted, and the roller 408 assists in rolling when the movable plate 403 moves, thereby ensuring the stability of the adjustment process. When the track body 2 is in use, the entire tensioning mechanism 4 is protected on the inside by the frame 1 and the protective casing 3, thereby preventing dirt from adhering to the tensioning mechanism 4 and making it inconvenient to adjust the operation. When the tensioning mechanism 4 needs to be adjusted, it is only necessary to release the fixation of the operating door 5 by the lock 502, and then open the operating door 5 through the door handle 501 to rotate the adjusting screw 405 to adjust the tensioning degree. Multiple sets of load-bearing wheels 8 are installed at the upper and lower ends of the inner side of the track body 2 through the second rotating shaft 801, further ensuring the smooth travel of the rotary tiller. The entire operation process is simple and convenient. Compared with the existing self-propelled crawler of the rotary tiller, the utility model can protect the tensioning mechanism 4 on the inner side of the self-propelled crawler of the rotary tiller through design, and at the same time facilitate the adjustment of the tensioning degree, thereby ensuring the smooth travel of the rotary tiller.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-propelled crawler for a rotary tiller with stable running, comprising a frame (1), characterized in that: The left and right ends of the frame (1) are both equipped with crawler bodies (2); the left and right ends of the frame (1) and the sides away from the two sets of crawler bodies (2) are both fixedly equipped with protective shells (3); the front ends of the inner sides of the two sets of protective shells (3) are both equipped with tensioning mechanisms (4); the outer sides of the two sets of protective shells (3) are both rotatably connected to operating doors (5) at positions corresponding to the tensioning mechanisms (4); the front ends of the two sets of tensioning mechanisms (4) and the inner sides of the crawler bodies (2) are both rotatably connected to tension adjustment wheels (6); the rear ends of the inner sides of the two sets of protective shells (3) are rotatably connected to rotating wheels (7); the upper and lower ends of the protective shells (3) and the inner sides of the crawler bodies (2) are rotatably connected to multiple sets of load-bearing wheels (8).

2. The self-propelled crawler of a rotary tiller with stable running according to claim 1, characterized in that: The inner side of the crawler body (2) is fixedly connected with a plurality of groups of engagement blocks (201), and the outer sides of the tension adjustment wheel (6) and the rotating wheel (7) are both engaged with the engagement blocks (201).

3. The self-propelled crawler of a rotary tiller with stable running according to claim 1, characterized in that: A plurality of groups of anti-skid bumps (202) are fixedly connected to the outer side of the crawler body (2), and a guide groove (203) is provided on the outer side of the crawler body (2) and between the plurality of groups of anti-skid bumps (202).

4. The self-propelled crawler of a rotary tiller with stable running according to claim 1, characterized in that: The tensioning mechanism (4) comprises a connecting frame (401) rotatably connected to the outside of the tension adjustment wheel (6); a connecting rod (402) is slidably connected to the rear end of the connecting frame (401); a movable disk (403) is fixedly connected to the rear end of the connecting rod (402); a spring (404) is sleeved on the outside of the connecting rod (402) and located between the connecting frame (401) and the movable disk (403); and an adjusting screw (405) is rotatably connected to the back of the movable disk (403).

5. The self-propelled crawler of a rotary tiller with stable running according to claim 4, characterized in that: The inner side of the front end of the connection frame (401) is rotatably connected to the tension adjustment wheel (6) via a first rotating shaft (406); the front end of the connection rod (402) is fixedly connected to a limit block (407); the outer side of the movable plate (403) is rotatably connected to two groups of rollers (408); and the adjustment screw (405) is threadably connected to the inner side of the frame (1) via a connection sleeve (409).

6. The self-propelled crawler of a rotary tiller with stable running according to claim 1, characterized in that: The front end of the outer side of the operating door (5) is fixedly connected to a door handle (501), and the outer side of the operating door (5) and the upper and lower sides of the door handle (501) are fixedly connected to the protective housing (3) via lock buckles (502).

7. The self-propelled crawler of a rotary tiller with stable running according to claim 1, characterized in that: The inner sides of the plurality of groups of load-bearing wheels (8) are rotatably connected to a second rotating shaft (801), the left and right ends of the second rotating shaft (801) are respectively mounted on the inner sides of the frame (1) and the protective casing (3), and fixing plates (802) are fixedly mounted on the upper and lower ends of the frame (1) and the protective casing (3) and on the outer sides of the second rotating shaft (801).

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