Intelligent lifting device for corn non-row-control harvester header

Abstract

The invention relates to the technical field of agricultural machinery, and discloses a corn non-row-control harvester header intelligent lifting device which comprises a header body and a vehicle body, a fixing block is fixedly connected between the header body and the vehicle body, and the bottom side of the fixing block is fixedly connected with a second connecting block. A first connecting block is fixedly connected to the end, away from the fixing block, of the second connecting block, a first rotating shaft is fixedly connected to the bottom of the header body, an angle adjusting assembly and an anti-winding assembly are arranged between the header body and the second connecting block, and a lubricating assembly is arranged at the top of the vehicle body. A first motor is fixedly connected to the outer wall of the vehicle body. Through cooperation of a laser radar, an ultrasonic sensor, a controller, a first motor, a gear, a rack, a fixing block and other structures, accurate height adjustment and stable lifting of the header are achieved, and improvement of corn harvesting quality and operation efficiency is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and particularly to an intelligent lifting device for the cutting table of a non-row maize harvester. Background Art

[0002] The cutting table of a non-row harvester is the core component of a maize harvester, which can complete operations such as cutting, conveying, and feeding of maize stalks under the condition of uneven maize planting rows. When the non-row maize harvester operates under conditions such as complex terrain and different maize plant heights, the supporting lifting device is crucial. The lifting device can adjust the height and angle of the cutting table through various methods.

[0003] The lifting device of the cutting table of a maize harvester usually mainly consists of a hydraulic system, a lifting arm, connecting components, and a control system, etc. When the control system issues a lifting command, the hydraulic pump pressurizes and transports hydraulic oil into the hydraulic cylinder. The piston in the hydraulic cylinder generates a linear motion under the action of the hydraulic oil, and drives the lifting arm to rotate around a fixed point through the connecting components, thereby realizing the rise or fall of the cutting table to adapt to different maize plant heights and terrain undulations, ensuring that the cutting table can perform harvesting operations at an appropriate height, and improving the harvesting efficiency and quality.

[0004] The lifting device of the traditional maize harvester cutting table usually adopts a manual operation mode. During the operation process, the driver needs to adjust the height of the cutting table according to his own experience and visual judgment. However, this method has various deficiencies. First of all, manually adjusting the height highly depends on the technical level and psychological quality of the operator. Even experienced drivers cannot accurately judge the optimal cutting table height under complex terrain conditions, crop height changes, and dense planting. Secondly, manual operation is easily affected by fatigue and distraction, which may lead to untimely or incorrect height adjustment. This way that relies on manual operation often results in improper setting of the cutting table height, which in turn causes damage to maize and incomplete harvesting, reducing the overall operation efficiency of maize harvesting. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an intelligent lifting device for the cutting table of a non-row maize harvester, which solves the problems of low adjustment accuracy and response lag of the cutting table height under the traditional manual operation mode, which are likely to cause damage to maize, incomplete harvesting, and low operation efficiency.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: An intelligent lifting device for the header of a corn non-row harvester, comprising a header body and a vehicle body. A fixing block is fixedly connected between the header body and the vehicle body. A second connecting block is fixedly connected to the bottom side of the fixing block. A first connecting block is fixedly connected to the end of the second connecting block away from the fixing block. A first rotating shaft is fixedly connected to the bottom of the header body. An angle adjustment assembly and an anti-winding assembly are arranged between the header body and the second connecting block. A lubrication assembly is arranged on the top of the vehicle body. A first motor is fixedly connected to the outer wall of the vehicle body. The output end of the first motor is fixedly connected to a worm. A fourth rotating shaft is rotatably connected inside the vehicle body. A worm gear and a gear are fixedly connected to the outer side of the fourth rotating shaft. A rack is slidably connected inside the vehicle body. A controller is fixedly connected to the top of the vehicle body. A lidar sensor and an ultrasonic sensor are respectively installed on both sides of the controller. A power supply is installed on one side of the vehicle body close to the header body.

[0007] Preferably, the angle adjustment assembly includes an extension block. The extension block is fixedly connected to the side of the header body close to the vehicle body. A hydraulic rod is installed between the extension block and the second connecting block. Installation blocks are arranged at both ends of the hydraulic rod. A second rotating shaft is rotatably connected inside the installation block.

[0008] Preferably, the anti-winding assembly includes a mounting seat. The mounting seat is fixedly connected to the side of the first connecting block close to the header body. A second motor is fixedly connected to the outer side of the first connecting block. The output end of the second motor is fixedly connected to a third rotating shaft. Rotating rings are evenly fixed to the outer side of the third rotating shaft.

[0009] Preferably, the lubrication assembly includes an oil storage tank. The oil storage tank is fixedly connected to the top of the vehicle body. An oil pump is installed inside the oil storage tank. The output end of the oil pump is fixedly connected to an oil delivery pipe. A solenoid valve is installed on the outer side of the oil delivery pipe. A lubrication port is arranged directly above the first rotating shaft. The end of the oil delivery pipe away from the oil pump is installed on the top of the lubrication port. An oil inlet is opened on one side of the oil storage tank away from the first rotating shaft.

[0010] Preferably, a pair of first connecting blocks are specifically provided. Both ends of the first rotating shaft are rotatably connected inside the pair of first connecting blocks.

[0011] Preferably, the worm meshes with the worm gear, the gear meshes with the rack, and the rack is fixedly connected to the bottom of the fixing block.

[0012] Preferably, a limiting groove is opened on one side of the vehicle body close to the header body. The fixing block is slidably connected to the middle of the limiting groove.

[0013] Preferably, the motor 1, the laser radar sensor and the ultrasonic sensor are all electrically connected to the controller.

[0014] Preferably, both ends of the hydraulic rod are fixedly connected to the outer side of the second rotating shaft.

[0015] Preferably, the rotating shaft three and the rotating ring are both rotatably connected at the middle part of the rotating ring.

[0016] The present invention provides an intelligent lifting device for a cutting platform of a corn non-row harvester, which has the following beneficial effects:

[0017] 1. Environmental data is collected in real time through laser radar and ultrasonic sensors and transmitted to the controller. After being processed by the preset algorithm, the motor one is driven accurately. The power of the motor one is transmitted through the worm, worm wheel, rotating shaft four, gear and rack, driving the fixed block to slide in the limit groove, so as to achieve precise adjustment and smooth lifting of the cutting platform height. The structure has rapid response and efficient transmission, which can overcome human errors, accurately position the cutting platform in complex environments, avoid crop damage and missed cutting, and help improve corn harvesting quality and operation efficiency. At the same time, the limit groove ensures the stable operation of the cutting platform.

[0018] 2. The present invention drives the cutting table to rotate around the second rotating shaft through the extension and retraction of the hydraulic rod in the angle adjustment component, so as to flexibly adjust the inclination angle of the cutting table. When encountering different terrains or special harvesting requirements, this design enables the cutting table to better fit the ground and adapt to the undulating terrain, ensuring the consistent cutting height in complex environments and improving the uniformity and integrity of the harvest.

[0019] 3. In the present invention, during the operation, the motor 2 drives the rotating shaft 3 and the rotating ring to rotate continuously, and the straw close to the rotating shaft 1 and the surrounding parts is timely pushed away. The setting of the anti-winding component effectively prevents the straw from winding around the key parts of the harvesting platform, reduces mechanical failures caused by winding, reduces equipment maintenance costs, and ensures the continuity of the harvesting operation.

[0020] 4. The present invention controls the operation of the lubrication component through a controller according to a set program. The oil pump delivers the lubricating oil in the oil storage tank from the lubrication port to the rotating shaft 1 through the oil pipe and the solenoid valve. Regular and accurate lubrication effectively reduces friction and wear between components and reduces the probability of mechanical failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 is a schematic diagram of a hydraulic rod of the present invention;

[0023] Figure 3 It is a schematic diagram of the second connection block of the present invention;

[0024] Figure 4 forFigure 3 Enlarged view of A

[0025] Figure 5 Schematic diagram of the angle adjustment component of the present invention

[0026] Figure 6 Schematic diagram of the anti - winding component of the present invention

[0027] Figure 7 Schematic diagram of the lubrication component of the present invention

[0028] Figure 8 Schematic diagram of the oil inlet of the present invention

[0029] Wherein, 1, header body; 2, vehicle body; 3, first connecting block; 4, second connecting block; 5, first rotating shaft; 6, angle adjustment component; 61, extension block; 62, hydraulic rod; 63, mounting block; 64, second rotating shaft; 7, anti - winding component; 71, mounting seat; 72, second motor; 73, third rotating shaft; 74, rotating ring; 8, lubrication component; 81, oil storage tank; 82, oil pump; 83, oil pipeline; 84, solenoid valve; 85, lubrication port; 86, oil inlet; 9, first motor; 10, worm; 11, worm gear; 12, fourth rotating shaft; 13, gear; 14, rack; 15, fixed block; 16, limiting groove; 17, lidar sensor; 18, ultrasonic sensor; 19, controller; 20, power supply Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention

[0031] Please refer to the attached Figure 1 - attached Figure 4, an embodiment of the present invention provides an intelligent lifting device for the cutting table of a corn non-row harvester, which includes a cutting table body 1 and a vehicle body 2. A fixing block 15 is fixedly connected between the cutting table body 1 and the vehicle body 2. A second connecting block 4 is fixedly connected to the bottom side of the fixing block 15. One end of the second connecting block 4 away from the fixing block 15 is fixedly connected to a first connecting block 3. A first rotating shaft 5 is fixedly connected to the bottom of the cutting table body 1. An angle adjusting assembly 6 and an anti-winding assembly 7 are arranged between the cutting table body 1 and the second connecting block 4. A lubricating assembly 8 is arranged on the top of the vehicle body 2. A first motor 9 is fixedly connected to the outer wall of the vehicle body 2. The output end of the first motor 9 is fixedly connected to a worm 10. A fourth rotating shaft 12 is rotatably connected inside the vehicle body 2. A worm gear 11 and a gear 13 are fixedly connected to the outside of the fourth rotating shaft 12. A rack 14 is slidably connected inside the vehicle body 2. A controller 19 is fixedly connected to the top of the vehicle body 2. A lidar sensor 17 and an ultrasonic sensor 18 are respectively installed on both sides of the controller 19. A power supply 20 is installed on one side of the vehicle body 2 close to the cutting table body 1. The worm 10 meshes with the worm gear 11, and the gear 13 meshes with the rack 14. The rack 14 is fixedly connected to the bottom of the fixing block 15. A limiting groove 16 is opened on one side of the vehicle body 2 close to the cutting table body 1. The fixing block 15 is slidably connected to the middle of the limiting groove 16. The first motor 9, the lidar sensor 17 and the ultrasonic sensor 18 are all electrically connected to the controller 19.

[0032] Specifically, the lidar sensor 17 and the ultrasonic sensor 18 are used to obtain key information such as the height of corn plants and the distance between the cutting table body 1 and surrounding obstacles in real time, and transmit these data to the controller 19. The controller 19 analyzes and processes the data according to preset programs and algorithms to judge whether the cutting table needs to adjust its height or angle. When the cutting table height needs to be adjusted, the controller 19 sends an instruction to the first motor 9. The first motor 9 starts to drive the worm 10 to rotate. The worm 10 meshes with the worm gear 11 to drive the worm gear 11 and the fourth rotating shaft 12 to rotate. The gear 13 on the outside of the fourth rotating shaft 12 rotates accordingly. The gear 13 cooperates with the rack 14 fixed to the bottom of the fixing block 15, so that the rack 14 drives the fixing block 15 to move linearly in the limiting groove 16 of the vehicle body 2, realizing the rising or falling of the cutting table body 1, and making the cutting table body 1 adapt to corn plants of different heights. This design realizes the intelligent and automatic adjustment of the cutting table height, reduces the errors and untimely of traditional manual operations, improves the precision and efficiency of the harvesting operation. The constraint of the limiting groove 16 on the fixing block 15 ensures the stability of the lifting process of the cutting table body 1, reduces the failure risk of the lifting device, and prolongs the service life of the lifting device.

[0033] Please refer to the attached Figure 3 and the attached Figure 5, the angle adjustment assembly 6 includes an extension block 61. The extension block 61 is fixedly connected to one side of the cutter bar body 1 close to the vehicle body 2. A hydraulic rod 62 is installed between the extension block 61 and the second connecting block 4. Installation blocks 63 are provided at both ends of the hydraulic rod 62. A second rotating shaft 64 is rotatably connected inside the installation block 63. There are specifically a pair of the first connecting blocks 3. Both ends of the first rotating shaft 5 are rotatably connected inside the pair of the first connecting blocks 3. Both ends of the hydraulic rod 62 are fixedly connected to the outside of the second rotating shaft 64.

[0034] Specifically, a control signal is sent to the hydraulic rod 62 through the controller 19 to drive the hydraulic rod 62 to produce a telescopic action. Both ends of the hydraulic rod 62 are connected to the extension block 61 of the cutter bar body 1 and the second connecting block 4 respectively by means of the installation blocks 63 and the second rotating shaft 64. This connection method constitutes a movable mechanical structure. When the hydraulic rod 62 expands and contracts, it will exert a force on the cutter bar body 1, prompting the cutter bar body 1 to rotate around the first rotating shaft 5, thereby realizing the change of the inclination angle of the cutter bar. This method helps to make up for the deficiency of the inconvenient angle adjustment of the traditional cutter bar when dealing with complex terrains. When the traditional cutter bar encounters ground undulations or special harvesting requirements, it is difficult to flexibly adjust the angle, and problems such as uneven cutting stubble and missed cutting are likely to occur. However, this device can automatically adjust the hydraulic rod 62 according to the terrain data collected by the sensor after being calculated by the controller 19, so that the cutter bar body 1 can quickly adapt to different terrains, ensure that the cutter bar maintains an appropriate angle with the ground, and effectively improve the adaptability of the cutter bar to complex operating environments.

[0035] Please refer to the appendix Figure 5 - appendix Figure 6 , the anti-winding assembly 7 includes a mounting seat 71. The mounting seat 71 is fixedly connected to one side of the first connecting block 3 close to the cutter bar body 1. A second motor 72 is fixedly connected to the outside of the first connecting block 3. The output end of the second motor 72 is fixedly connected to a third rotating shaft 73. Rotating rings 74 are evenly fixed on the outside of the third rotating shaft 73. The anti-winding assembly 7 includes a mounting seat 71. The mounting seat 71 is fixedly connected to one side of the first connecting block 3 close to the cutter bar body 1. A second motor 72 is fixedly connected to the outside of the first connecting block 3. The output end of the second motor 72 is fixedly connected to a third rotating shaft 73. Rotating rings 74 are evenly fixed on the outside of the third rotating shaft 73.

[0036] Specifically, the controller 19 issues an instruction to start the second motor 72. The second motor 72 starts to operate and drives the connected third rotating shaft 73 to rotate. Since the rotating ring 74 is evenly fixed on the outside of the third rotating shaft 73, the rotation of the third rotating shaft 73 will cause the rotating ring 74 to rotate synchronously. The rotating rotating ring 74 forms a dynamic protection area within its circumferential motion range. When the straw approaches the first rotating shaft 5 and its related components, the rotating ring 74 can timely push aside the straw. During the operation of traditional corn harvesters, straw entanglement is a common and troublesome problem. When the straw is wound around the first rotating shaft 5 and its related components, it will increase the operating resistance of the equipment, resulting in increased power loss and affecting the continuity and efficiency of the operation. However, this anti-entanglement component 7 drives the rotating ring 74 to rotate through the second motor 72, which helps to avoid the problem of straw entanglement at the core part, reduces the failure probability of the equipment caused by straw entanglement, and thus improves the overall operating efficiency of the device.

[0037] Please refer to the attached Figure 7 - attached Figure 8 , the lubrication component 8 includes an oil storage tank 81. The oil storage tank 81 is fixedly connected to the top of the vehicle body 2. An oil pump 82 is installed inside the oil storage tank 81. The output end of the oil pump 82 is fixedly connected to an oil delivery pipe 83. A solenoid valve 84 is installed outside the oil delivery pipe 83. A lubrication port 85 is provided directly above the first rotating shaft 5. One end of the oil delivery pipe 83 away from the oil pump 82 is installed at the top of the lubrication port 85. An oil inlet 86 is provided on one side of the oil storage tank 81 away from the first rotating shaft 5.

[0038] Specifically, through a preset time interval in the controller 19, the controller 19 automatically triggers the control program for the lubrication component 8. When the set time is reached, the controller 19 starts the oil pump 82 and opens the solenoid valve 84. The oil pump 82 transports the lubricating oil in the oil storage tank 81 to the lubrication port 85 directly above the first rotating shaft 5 through the oil delivery pipe 83, so that the lubricating oil covers the surfaces of rotating components such as the first rotating shaft 5 to form a lubricating film, reducing the friction and wear between components. Compared with the traditional method of manually checking and adding lubricating oil regularly, automatic lubrication at set intervals can ensure that the rotating components are continuously in a good lubricated state, reduce the risk of component damage due to friction, and improve the continuity and stability of the operation.

[0039] Working principle: The intelligent lifting device for the header of this non-row corn harvester uses the lidar sensor 17 and the ultrasonic sensor 18 to real-time obtain information such as the height of the corn plants and the distance between the header body 1 and the surrounding obstacles, and transmits this data to the controller 19. The controller 19 analyzes and processes the data according to the preset programs and algorithms to judge whether the header needs to adjust the height or angle;

[0040] When the height of the cutting table needs to be adjusted, the controller 19 sends an instruction to the first motor 9. The first motor 9 starts and drives the worm 10 to rotate. Since the worm 10 meshes with the worm wheel 11, the rotation of the worm 10 drives the worm wheel 11 and the fourth rotating shaft 12 fixedly connected thereto to rotate. The gear 13 on the outer side of the fourth rotating shaft 12 rotates accordingly, and the gear 13 meshes with the rack 14 fixed to the bottom of the fixed block 15. The rotation of the gear 13 causes the rack 14 to drive the fixed block 15 to move linearly in the limit groove 16 of the vehicle body 2, thereby realizing the rise or fall of the cutting table body 1, enabling the cutting table body 1 to adapt to corn plants of different heights;

[0041] If the angle of the cutting table body 1 needs to be adjusted, the hydraulic rod 62 is started, causing the hydraulic rod 62 to perform a telescopic action. Both ends of the hydraulic rod 62 are respectively connected to the extension block 61 of the cutting table body 1 and the second connecting block 4 through the mounting block 63 and the second rotating shaft 64. The telescopic movement of the hydraulic rod 62 causes the cutting table body 1 to rotate around the first rotating shaft 5, thereby changing the inclination angle of the cutting table to adapt to different terrains and harvesting requirements;

[0042] During the operation process, to prevent the corn straw from winding and affecting the normal operation of the cutting table, by starting the second motor 72, the second motor 72 drives the third rotating shaft 73 and the outer rotating ring 74 to rotate. The rotating rotating ring 74 pushes aside the straw near the first rotating shaft 5, preventing the straw from winding around the first rotating shaft 5 and its related components;

[0043] To ensure the lubrication effect of the device and extend its service life, the controller 19 controls the oil pump 82 in the lubrication assembly 8 to work at a set time interval and opens the solenoid valve 84. The oil pump 82 transports the lubricating oil in the oil storage tank 81 to the lubrication port 85 directly above the first rotating shaft 5 through the oil delivery pipe 83 to lubricate the rotating components such as the first rotating shaft 5. The lubricating oil can be replenished into the oil storage tank 81 through the oil inlet 86.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent lifting device for a cutting platform of a corn non-row harvester, comprising a cutting platform body (1) and a vehicle body (2), characterized in that: A fixing block (15) is fixedly connected between the cutting platform body (1) and the vehicle body (2); a second connecting block (4) is fixedly connected to the bottom side of the fixing block (15); a connecting block (3) is fixedly connected to the end of the connecting block (4) away from the fixing block (15); a rotating shaft (5) is fixedly connected to the bottom of the cutting platform body (1); an angle adjustment component (6) and an anti-winding component (7) are arranged between the cutting platform body (1) and the connecting block (4); a lubrication component (8) is arranged on the top of the vehicle body (2); and a motor is fixedly connected to the outer wall of the vehicle body (2). One (9), the output end of the motor one (9) is fixedly connected to a worm (10), the interior of the vehicle body (2) is rotatably connected to a rotating shaft four (12), the outer side of the rotating shaft four (12) is fixedly connected to a worm wheel (11) and a gear (13), the interior of the vehicle body (2) is slidably connected to a rack (14), the top of the vehicle body (2) is fixedly connected to a controller (19), the two sides of the controller (19) are respectively installed with a laser radar sensor (17) and an ultrasonic sensor (18), and a power supply (20) is installed on the side of the vehicle body (2) close to the cutting platform body (1).

2. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 1 is characterized in that: The angle adjustment assembly (6) comprises an extension block (61), wherein the extension block (61) is fixedly connected to a side of the cutting platform body (1) close to the vehicle body (2), a hydraulic rod (62) is installed between the extension block (61) and the second connecting block (4), and mounting blocks (63) are provided at both ends of the hydraulic rod (62), and the interior of the mounting block (63) is rotatably connected to a second rotating shaft (64).

3. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 1 is characterized in that: The anti-winding component (7) comprises a mounting seat (71), the mounting seat (71) is fixedly connected to a side of the connecting block (3) close to the cutting platform body (1), the outer side of the connecting block (3) is fixedly connected to the motor (72), the output end of the motor (72) is fixedly connected to the rotating shaft (73), and the outer side of the rotating shaft (73) is evenly fixed with a rotating ring (74).

4. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 1 is characterized in that: The lubrication assembly (8) comprises an oil storage tank (81), the oil storage tank (81) is fixedly connected to the top of the vehicle body (2), an oil pump (82) is installed inside the oil storage tank (81), the output end of the oil pump (82) is fixedly connected to an oil delivery pipe (83), an electromagnetic valve (84) is installed on the outside of the oil delivery pipe (83), a lubrication port (85) is arranged just above the rotating shaft (5), one end of the oil delivery pipe (83) away from the oil pump (82) is installed on the top of the lubrication port (85), and an oil inlet (86) is opened on the side of the oil storage tank (81) away from the rotating shaft (5).

5. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 1 is characterized in that: The connecting block one (3) is specifically provided in a pair, and both ends of the rotating shaft one (5) are rotatably connected inside the pair of connecting blocks one (3).

6. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 1 is characterized in that: The worm (10) and the worm wheel (11) are meshed with each other, the gear (13) and the rack (14) are meshed with each other, and the rack (14) is fixedly connected to the bottom of the fixed block (15).

7. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 1 is characterized in that: A limiting groove (16) is provided on one side of the vehicle body (2) close to the header body (1), and the fixing block (15) is slidably connected to the middle of the limiting groove (16).

8. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 1 is characterized in that: The motor 1 (9), the laser radar sensor (17) and the ultrasonic sensor (18) are all electrically connected to the controller (19).

9. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 2 is characterized in that: Both ends of the hydraulic rod (62) are fixedly connected to the outside of the second rotating shaft (64).

10. The intelligent lifting device for the cutting platform of a corn non-row harvester according to claim 3, characterized in that: The rotating shaft three (73) and the rotating ring (74) are both rotatably connected at the middle part of the rotating ring (74).

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