Walking structure of self-propelled corn kernel harvester

Abstract

The walking structure of the self-propelled corn kernel harvester comprises a bearing plate and vertical frames, three sets of vertical frames at equal intervals are installed at the bottom end of the bearing plate, the vertical frames at the two ends are fixedly connected with the bearing plate, the vertical frame in the middle is connected with the bearing plate in a sliding mode, transverse frames are arranged on the two sides of the bearing plate, and the transverse frames are connected with the bearing plate in a sliding mode. The transverse frame is fixedly connected with the vertical frames at the two ends, the transverse frame is slidably connected with the vertical frame in the middle, first motors are installed in the vertical frames, bidirectional lead screws are installed at the output ends of the first motors, the bidirectional lead screws are movably connected with the vertical frames, and the surfaces of the bidirectional lead screws are sleeved with two sets of bidirectional threaded sleeves; the two-way threaded sleeve is in threaded connection with the two-way lead screw, and two sets of sliding sleeves are installed on the outer surface of the vertical frame in a sliding mode. According to the utility model, convenient linkage adjustment is realized to adapt to roads with different widths, multi-stage adjustment of the harvesting height is facilitated, and the use flexibility is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of walking structures, in particular to a walking structure of a self-propelled corn grain harvester. Background Art

[0002] A corn kernel harvester is an agricultural machine that can complete the operations of picking ears, threshing and cleaning corn at one time when the corn is mature, and finally obtain clean corn kernels. This machine is usually called a "kernel machine". In recent years, it has gradually attracted attention in the agricultural field, especially in areas with large-scale planting and a high degree of mechanization. With the development of technology, modern corn harvesting machinery has gradually replaced the traditional manual harvesting method. At present, the corn harvesting method in Europe and the United States is almost all direct grain harvesting, while in China, due to the small scale of planting and insufficient drying equipment, the main method is picking ears for harvesting. However, with the advent of the era of large-scale planting and the enhancement of drying service capabilities, the proportion of direct corn kernel harvesting in China is also gradually increasing. Traditional self-propelled corn kernel harvesters cannot adjust the height, which is not convenient for harvesting corn with higher stalks. In order to improve this situation, a walking structure of a self-propelled corn kernel harvester is proposed.

[0003] For example, the self-propelled corn harvester disclosed in authorization announcement number CN210868801U includes a frame, a cutting table mounted on the frame, a material lifting device, a straw collection box, a stripping device, a cleaning device, a grain collection box, a corn ear collection box, and a field return device. The cutting table is located at the front end of the frame, the output end of the feed pipe corresponds to the position of the straw collection box, one end of the material lifting device is connected to the cutting table, and the other end is connected to the stripping device, and the output end of the stripping device corresponds to the position of the corn ear collection box.

[0004] The self-propelled corn harvester can simultaneously harvest corn ears and recover corn stalks due to the adoption of a straw collection box corresponding to the feeding pipe and an ear collection box corresponding to the stripping device, thereby achieving high operating efficiency, reasonable and compact structure, convenient use, practicality and reliability;

[0005] However, the problem that the existing walking structure is not conducive to convenient linkage adjustment to adapt to roads of different widths during use and is not conducive to multi-level adjustment of the harvesting height, which affects the flexibility of use. Utility Model Content

[0006] The purpose of the present utility model is to provide a walking structure of a self-propelled corn grain harvester to solve the problem in the above background technology that the walking structure is not convenient for convenient linkage adjustment to adapt to roads of different widths, is not conducive to multi-level adjustment of the harvesting height, and affects the flexibility of use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a walking structure of a self-propelled corn grain harvester, comprising a carrying plate and a vertical frame, wherein three groups of equally spaced vertical frames are installed at the bottom end of the carrying plate, and the vertical frames at both ends are fixedly connected to the carrying plate, and the middle vertical frame is slidably connected to the carrying plate, and a cross frame is provided on both sides of the carrying plate, and the cross frame is fixedly connected to the vertical frames at both ends, and the cross frame is slidably connected to the middle vertical frame, a first motor is installed inside the vertical frame, and the output end of the first motor is installed with a bidirectional screw rod, and the bidirectional screw rod is movably connected to the vertical frame, the surface of the bidirectional screw rod is provided with two groups of bidirectional threaded sleeves, and the bidirectional threaded sleeves are threadedly connected to the bidirectional screw rod, and two groups of sliding sleeves are slidably installed on the outer surface of the vertical frame, and the sliding sleeves are respectively connected to the bidirectional threaded sleeves, a plurality of equally spaced groups of lifting hydraulic cylinders are installed on the top of the carrying plate, a lifting disk is installed on the output end of the lifting hydraulic cylinder, and a rotating shaft is movably installed on the top of the lifting disk, and a harvester body is provided above the carrying plate.

[0008] Preferably, a rotary motor is installed inside the harvester body, a worm is installed at the output end of the rotary motor, and the worm is movably connected to the harvester body.

[0009] Preferably, a worm wheel is mounted on the surface of the rotating shaft on one side of the worm, and the worm and the worm wheel are meshed with each other.

[0010] Preferably, a downward-pressing hydraulic cylinder is movably mounted on the top end of the sliding sleeve, and a push arm is mounted on the output end of the downward-pressing hydraulic cylinder.

[0011] Preferably, a rotating arm is installed at the bottom end of the sliding sleeve, a linkage shaft is installed at the top end of the rotating arm, and the rotating arm is movably connected to the sliding sleeve through the linkage shaft, and an electric wheel is installed at one end of the rotating arm away from the vertical frame.

[0012] Preferably, a movable shaft is installed at one end of the push arm away from the downward hydraulic cylinder, and the push arm is movably connected to the rotating arm through the movable shaft.

[0013] Preferably, a second motor is installed inside each of the supporting plates, a movable screw rod is installed at the output end of each of the second motors, and the movable screw rod is movably connected to the cross frame.

[0014] Preferably, the surface of the movable screw rod is covered with a movable threaded sleeve, and the movable threaded sleeve is threadedly connected to the movable screw rod, and the movable threaded sleeve is connected to the middle group of vertical frames.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the walking structure not only realizes convenient linkage adjustment to adapt to roads of different widths, facilitates multi-level adjustment of the harvesting height, but also improves the flexibility of use;

[0016] (1) By controlling the electric wheel, the electric wheel drives the entire device to move and the harvester body is opened, and the harvester body is used to harvest corn. When it is necessary to adjust to roads of different widths, the first motor drives the bidirectional screw to rotate, and the bidirectional screw drives the two sets of bidirectional threaded sleeves to move in opposite directions and away from each other, and the bidirectional threaded sleeve drives the rotating arm and the electric wheel to move through the sliding sleeve, so that the two sets of electric wheels move away from each other to adapt to roads of different widths. When it is necessary to adjust the front and rear center of gravity positions, the second motor drives the moving screw to rotate, and the moving screw drives the middle set of vertical frames to move through the moving threaded sleeve, and the set of vertical frames drives the corresponding The electric wheels move to move the front and rear distance of the middle group of electric wheels, so as to adjust the front and rear center of gravity of the equipment to adapt to different harvesting scenarios. When the harvesting height needs to be raised, the downward hydraulic cylinder drives the push arm to move, and the push arm drives the rotating arm to rotate with the linkage shaft as the axis through the movable shaft, and the rotating arm drives the electric wheel to rotate and make the electric wheel contact the ground. Under the synchronous action of multiple groups of electric wheels, the height of the entire device is raised, and the lifting hydraulic cylinder drives the lifting plate to move upward, and the lifting plate drives the harvester body to move upward through the rotating shaft to raise the height of the harvester body again, so as to facilitate the harvesting of corn at different heights.

[0017] (2) After a single trip of corn harvesting is completed, the rotating motor drives the worm to rotate, and the worm drives the rotating shaft to rotate through the worm gear. The lifting plate is fixed, and the rotating shaft drives the harvester body to rotate, so as to flexibly adjust the harvesting direction of the harvester body, thereby completing the use of the walking structure of the self-propelled corn grain harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the front cross-sectional structure of the harvester body of the present utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the load-bearing plate of the present invention;

[0021] Figure 4 It is a side cross-sectional structural diagram of the vertical frame of the present utility model;

[0022] Figure 5 It is a schematic diagram of the front cross-sectional structure of the load-bearing plate of the present invention.

[0023] In the figure: 1. Horizontal frame; 2. Vertical frame; 3. Electric wheel; 4. Harvester body; 5. Rotating shaft; 6. Rotating motor; 7. Worm; 8. Worm gear; 9. Lifting plate; 10. Lifting hydraulic cylinder; 11. Loading plate; 12. Pressing hydraulic cylinder; 13. Push arm; 14. Movable shaft; 15. Rotating arm; 16. Linkage shaft; 17. Bidirectional screw; 18. First motor; 19. Bidirectional threaded sleeve; 20. Sliding sleeve; 21. Moving threaded sleeve; 22. Moving screw; 23. Second motor. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-5 The utility model provides an embodiment: a walking structure of a self-propelled corn grain harvester, including a carrying plate 11 and a vertical frame 2, three groups of vertical frames 2 with equal spacing are installed at the bottom end of the carrying plate 11, and the vertical frames 2 at both ends are fixedly connected to the carrying plate 11, and the middle vertical frame 2 is slidably connected to the carrying plate 11, and a horizontal frame 1 is provided on both sides of the carrying plate 11, and the horizontal frame 1 is fixedly connected to the vertical frames 2 at both ends, and the horizontal frame 1 is slidably connected to the middle vertical frame 2, and a first motor 18 is installed inside the vertical frame 2, the first motor 18 plays the role of power drive, and the output end of the first motor 18 is equipped with a bidirectional Screw rod 17, and the bidirectional screw rod 17 is movably connected to the vertical frame 2, the surface of the bidirectional screw rod 17 is provided with two sets of bidirectional threaded sleeves 19, and the bidirectional threaded sleeves 19 are threadedly connected to the bidirectional screw rod 17, and two sets of sliding sleeves 20 are slidably installed on the outer surface of the vertical frame 2, and the sliding sleeves 20 are respectively connected to the bidirectional threaded sleeves 19, and the top of the carrying plate 11 is provided with multiple groups of jacking hydraulic cylinders 10 with equal spacing, and the jacking hydraulic cylinders 10 play the role of power drive, and the output end of the jacking hydraulic cylinder 10 is provided with a jacking disk 9, and the top of the jacking disk 9 is movably provided with a rotating shaft 5, and the harvester body 4 is provided above the carrying plate 11;

[0026] By manipulating the electric wheel 3, the electric wheel 3 drives the entire device to move, and the harvester body 4 is opened, and the harvester body 4 is used to harvest corn. When it is necessary to adjust to adapt to roads of different widths, the first motor 18 is turned on, and the first motor 18 drives the bidirectional screw rod 17 to rotate, and the bidirectional screw rod 17 drives the two groups of bidirectional threaded sleeves 19 to move in opposite directions and away from each other, and the bidirectional threaded sleeve 19 drives the rotating arm 15 and the electric wheel 3 to move through the sliding sleeve 20, so that the two groups of electric wheels 3 are away from each other to adapt to roads of different widths. When it is necessary to adjust the front and rear center of gravity positions, the second motor 23 is turned on, and the second motor 23 drives the moving screw rod 22 to rotate, and the moving screw rod 22 drives the middle group of vertical frames 2 to move through the moving threaded sleeve 21, and the group of vertical frames 2 drives the corresponding The electric wheel 3 moves to move the front and rear distance of the middle group of electric wheels 3, so as to adjust the front and rear center of gravity of the equipment to adapt to different harvesting scenes. When it is necessary to raise the harvesting height, the downward hydraulic cylinder 12 is opened, and the downward hydraulic cylinder 12 drives the push arm 13 to move, and the push arm 13 drives the rotating arm 15 to rotate with the linkage shaft 16 as the axis through the movable shaft 14, and the rotating arm 15 drives the electric wheel 3 to rotate and make the electric wheel 3 contact the ground. Under the synchronous action of multiple groups of electric wheels 3, the height of the entire device is raised, and at the same time, the jacking hydraulic cylinder 10 is opened, and the jacking hydraulic cylinder 10 drives the jacking plate 9 to move upward, and the jacking plate 9 drives the harvester body 4 to move upward through the rotating shaft 5 to raise the height of the harvester body 4 again, so as to facilitate the harvesting of corn at different heights;

[0027] A rotary motor 6 is installed inside the harvester body 4, which plays a role of power drive. A worm 7 is installed at the output end of the rotary motor 6, and the worm 7 is movably connected to the harvester body 4. A worm wheel 8 is mounted on the surface of the rotating shaft 5 on one side of the worm 7, and the worm 7 and the worm wheel 8 are meshed with each other.

[0028] The top of the sliding sleeve 20 is movably mounted with a downward hydraulic cylinder 12, which plays a role of power drive, and the output end of the downward hydraulic cylinder 12 is mounted with a push arm 13;

[0029] The bottom end of the sliding sleeve 20 is mounted with a rotating arm 15, and the top end of the rotating arm 15 is mounted with a linkage shaft 16. The rotating arm 15 is movably connected to the sliding sleeve 20 via the linkage shaft 16, and the end of the rotating arm 15 away from the vertical frame 2 is mounted with a motorized wheel 3.

[0030] A movable shaft 14 is installed on one end of the push arm 13 away from the downward hydraulic cylinder 12, and the push arm 13 is movably connected to the rotating arm 15 through the movable shaft 14;

[0031] The second motor 23 is installed inside the supporting plate 11. The second motor 23 plays the role of power drive. The output end of the second motor 23 is installed with a movable screw rod 22, and the movable screw rod 22 is movably connected to the horizontal frame 1.

[0032] The surface of the movable screw rod 22 is covered with a movable threaded sleeve 21, and the movable threaded sleeve 21 is threadedly connected to the movable screw rod 22, and the movable threaded sleeve 21 is connected to the middle set of vertical frames 2;

[0033] When a single trip of corn harvesting is completed, turn on the rotating motor 6, which drives the worm 7 to rotate, and the worm 7 drives the rotating shaft 5 to rotate through the worm gear 8. The lifting plate 9 is fixed, and the rotating shaft 5 drives the harvester body 4 to rotate, so as to flexibly adjust the harvesting direction of the harvester body 4, thereby completing the use of the walking structure of the self-propelled corn grain harvester.

[0034] Working principle: by controlling the electric wheel 3, the electric wheel 3 drives the entire device to move and the harvester body 4 is opened, and the harvester body 4 is used to harvest corn. When it is necessary to adjust to adapt to roads of different widths, the first motor 18 drives the bidirectional screw rod 17 to rotate, and the bidirectional screw rod 17 drives the two sets of bidirectional threaded sleeves 19 to move in opposite directions and away from each other, and the bidirectional threaded sleeve 19 drives the rotating arm 15 and the electric wheel 3 to move through the sliding sleeve 20, so that the two sets of electric wheels 3 are away from each other to adapt to roads of different widths. When the front and rear center of gravity positions need to be adjusted, the second motor 23 drives the moving screw rod 22 to rotate, and the moving screw rod 22 drives the middle group of vertical frames 2 to move through the moving threaded sleeve 21, and the group of vertical frames 2 drives the corresponding electric wheels 3 to move, so as to move the front and rear distance of the middle group of electric wheels 3, thereby adjusting the front and rear center of gravity of the equipment, so as to adapt to different harvesting scenes. When the harvesting height is to be raised, the push arm 13 is driven by the downward hydraulic cylinder 12 to move, and the push arm 13 drives the rotating arm 15 to rotate with the linkage shaft 16 as the axis through the movable shaft 14, and the rotating arm 15 drives the electric wheel 3 to rotate and make the electric wheel 3 contact the ground. Under the synchronous action of multiple sets of electric wheels 3, the height of the entire device is raised, and the lifting hydraulic cylinder 10 drives the lifting plate 9 to move upward, and the lifting plate 9 drives the harvester body 4 to move upward through the rotating shaft 5 to raise the height of the harvester body 4 again, so as to facilitate the harvesting of corn at different heights. When the single-trip corn harvesting is completed, the rotating motor 6 drives the worm 7 to rotate, and the worm 7 drives the rotating shaft 5 to rotate through the worm gear 8. The lifting plate 9 is fixed, and the rotating shaft 5 drives the harvester body 4 to rotate, so as to flexibly adjust the harvesting direction of the harvester body 4, thereby completing the use of the walking structure of the self-propelled corn grain harvester.

Claims

1. A walking structure of a self-propelled corn grain harvester, comprising a bearing plate (11) and a vertical frame (2), characterized in that: The bottom end of the carrier plate (11) is provided with three groups of vertical frames (2) with equal spacing, and the vertical frames (2) at both ends are fixedly connected to the carrier plate (11), and the middle vertical frame (2) is slidably connected to the carrier plate (11), and both sides of the carrier plate (11) are provided with horizontal frames (1), and the horizontal frames (1) are fixedly connected to the vertical frames (2) at both ends, and the horizontal frames (1) are slidably connected to the middle vertical frame (2), and the interior of the vertical frames (2) is provided with a first motor (18), and the output end of the first motor (18) is provided with a bidirectional screw rod (17), and the bidirectional screw rod (17) is movably connected to the vertical frame (2). The surfaces of the bidirectional screw rod (17) are all covered with two groups of bidirectional threaded sleeves (19), and the bidirectional threaded sleeves (19) are threadedly connected to the bidirectional screw rod (17). Two groups of sliding sleeves (20) are slidably installed on the outer surface of the vertical frame (2), and the sliding sleeves (20) are respectively connected to the bidirectional threaded sleeves (19). The top of the supporting plate (11) is equipped with multiple groups of equidistant lifting hydraulic cylinders (10), the output end of the lifting hydraulic cylinder (10) is equipped with a lifting disk (9), and the top of the lifting disk (9) is movably equipped with a rotating shaft (5). The harvester body (4) is arranged above the supporting plate (11).

2. The walking structure of the self-propelled corn grain harvester according to claim 1, characterized in that: A rotary motor (6) is installed inside the harvester body (4), a worm (7) is installed at the output end of the rotary motor (6), and the worm (7) is movably connected to the harvester body (4).

3. The walking structure of the self-propelled corn grain harvester according to claim 2, characterized in that: A worm wheel (8) is mounted on the surface of the rotating shaft (5) on one side of the worm (7), and the worm (7) and the worm wheel (8) are meshed with each other.

4. The walking structure of the self-propelled corn grain harvester according to claim 1, characterized in that: The top end of the sliding sleeve (20) is movably mounted with a downward-pressing hydraulic cylinder (12), and the output end of the downward-pressing hydraulic cylinder (12) is mounted with a push arm (13).

5. The walking structure of the self-propelled corn grain harvester according to claim 1, characterized in that: The bottom end of each sliding sleeve (20) is provided with a rotating arm (15), the top end of each rotating arm (15) is provided with a linkage shaft (16), and the rotating arm (15) is movably connected to the sliding sleeve (20) via the linkage shaft (16), and the end of each rotating arm (15) away from the vertical frame (2) is provided with an electric wheel (3).

6. The walking structure of the self-propelled corn grain harvester according to claim 4, characterized in that: A movable shaft (14) is installed at one end of the push arm (13) away from the downward hydraulic cylinder (12), and the push arm (13) is movably connected to the rotating arm (15) through the movable shaft (14).

7. The walking structure of the self-propelled corn grain harvester according to claim 1, characterized in that: A second motor (23) is installed inside the supporting plate (11), and a movable screw rod (22) is installed at the output end of the second motor (23), and the movable screw rod (22) is movably connected to the horizontal frame (1).

8. The walking structure of the self-propelled corn grain harvester according to claim 7, characterized in that: The surface of the movable screw rod (22) is covered with a movable thread sleeve (21), and the movable thread sleeve (21) is threadedly connected to the movable screw rod (22), and the movable thread sleeve (21) is connected to the middle set of vertical frames (2).

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