Star wheel mechanism and corn harvester

Abstract

The utility model relates to the field of agricultural machinery, in particular to a star wheel mechanism. The star wheel mechanism provided by the utility model mainly comprises a star wheel integrated part, the shifting rod is arranged on the star wheel integrated part, the shape of the shifting rod is set to be in a bent finger shape, and when the star wheel integrated part drives the shifting rod to rotate, plant clusters are shifted in a grabbing mode. According to the star wheel mechanism provided by the invention, the operation part (the driving lever) is improved to be bent, and the head part is conical, so that the function of driving corns in a hand grabbing manner is realized, and the corns can be effectively prevented from being damaged.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, specifically to a star wheel mechanism and a corn harvester. Background Technology

[0002] In the field of agricultural machinery, specifically corn harvesters, the existing star wheel mechanism has technical defects. The working part of the star wheel frequently damages the corn ears when plucking them. Research has found that this is related to the way the current star wheel's plucking lever structure presses on the corn ears; the existing star wheel mechanism's action on the corn ears easily damages them during operation. Utility Model Content

[0003] The shortcomings of existing technologies are clear: the star wheel mechanism of the original corn harvester has technical defects. Because its working part (lever) is linear, it uses a pressing and pushing method when harvesting corn cobs, which easily damages the ears during operation. This application provides a star wheel mechanism in which the working part (lever) is improved to a curved type with a conical head, enabling a hand-gripping function to harvest corn and effectively preventing damage.

[0004] This application provides a star wheel mechanism, comprising:

[0005] Star wheel integrated part;

[0006] A lever is provided in the star wheel integral part. The lever is shaped like a curved finger. When the star wheel integral part drives the lever to rotate, it can be used to grasp and pluck the plant's fruit spike.

[0007] The star wheel mechanism provided in this application includes:

[0008] Star wheel integrated part;

[0009] A lever is disposed in the star wheel integral part. The star wheel integral part drives the lever to rotate counterclockwise. The lever is curved, and the direction of curvature is the same as the direction of rotation of the lever.

[0010] The star wheel mechanism provided in this application includes:

[0011] Star wheel integrated part;

[0012] A lever is disposed in the star wheel integral part, the star wheel integral part drives the lever to rotate counterclockwise, and the top part of the lever away from the star wheel integral part has an angle with the radial direction of the star wheel integral part, the angle including an acute angle.

[0013] In a star wheel mechanism provided in this application, the included angle ranges from 23.66 degrees to 33.66 degrees.

[0014] In a star wheel mechanism provided in this application, the included angle is 28.66 degrees.

[0015] In a star wheel mechanism provided in this application, the lever includes a main rod and a top part. The top part is connected to the end of the main rod away from the integral part of the star wheel. The main rod includes a straight part and a curved part, which are connected together. The straight part and the curved part have an angle between them.

[0016] In a star wheel mechanism provided in this application, the top part is connected to the curved part, and the top part includes a conical structure.

[0017] In a star wheel mechanism provided in this application, the included angle includes an angle between 23.66 degrees and 33.66 degrees.

[0018] In a star wheel mechanism provided in this application, the included angle is 28.66 degrees.

[0019] This application also provides a corn harvester, including the star wheel mechanism described in any of the above claims.

[0020] The star wheel mechanism provided in this application features a rotating star wheel component driven by a power source, which in turn rotates a lever shaped like a curved finger. Because the lever is curved like a finger, during rotation, its curved shape allows it to contact the corn ear like a finger grasping an object. As it rotates, it gradually applies force to the corn ear, thus grasping and manipulating it, achieving an orderly manipulation of the corn ear. Compared to the pressing and manipulating method of the original straight lever, this grasping and manipulating method of the curved finger lever better adapts to the shape of the corn ear, reducing direct compression and damage to the corn ear, effectively avoiding damage to the corn ear during operation, and improving the quality and integrity of corn harvesting.

[0021] This application provides a star wheel mechanism in which the integrated star wheel rotates counterclockwise under power, driving a curved lever to rotate as well. The lever bends in the same direction as the rotation. During rotation, the lever contacts the corn ear with its curved shape. Because the bend direction is consistent with the rotation direction, the lever can more smoothly pry the corn ear in the direction of rotation, thus prying the corn ear in the direction of movement. This design allows the lever to effectively pry the corn ear backward, improving prying efficiency. Furthermore, compared to the pressing and prying method of the original straight lever, the curved lever provides a more reasonable pressure distribution on the corn ear during prying, reducing damage to the ear caused by excessive local pressure, thereby avoiding damage to the corn ear and ensuring the quality of corn harvesting.

[0022] Another star wheel mechanism provided in this application involves an integrated star wheel that drives a lever to rotate counterclockwise. The tip of the lever, furthest from the integrated star wheel, forms an acute angle with the radial direction of the integrated star wheel. During rotation, the acute angle between the tip of the lever and the radial direction creates an inclined force upon contact with the corn stalk ear. This force can be decomposed into a component that pushes the stalk ear along the rotational direction and a component that squeezes the stalk ear towards the center of the star wheel. This achieves both the manipulation and a degree of clamping of the corn stalk ear, thus enabling the orderly manipulation of the corn stalk ear. This acute angle design allows the lever to not only push the stalk ear backward but also clamp it, making the corn stalk ear more stable during manipulation and less prone to falling off or deviating. By setting the included angle appropriately (such as 23.66 to 33.66 degrees, especially 28.66 degrees), the effect of the lever on the corn ears can be optimized. Compared with the original straight lever structure, damage to the corn ears is reduced, the stability and reliability of corn harvesting operations are improved, and the integrity of the corn ears is guaranteed during the harvesting process.

[0023] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a diagram of the existing technical structure of the star wheel mechanism;

[0026] Figure 2 This is a schematic diagram of the star wheel mechanism provided in this application;

[0027] Figure 3 This is a schematic diagram of the front structure of a corn harvester with a star wheel mechanism provided in this application.

[0028] Figure label:

[0029] 10. Star wheel mechanism; 1. Star wheel integrated part; 2. Lever; 3. Top part. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0033] It should be understood that, in order to clearly describe the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish identical or similar items with essentially the same function and effect. For example, the first groove and the second groove are only used to distinguish different grooves and do not limit their order. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and the terms "first" and "second" are not necessarily different.

[0034] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0035] The existing star wheel mechanism 10 of the corn harvester has technical defects. Because its working part (lever 2) is linear, it uses a pressing and pushing method when harvesting corn ears, which can easily damage the ears during operation. The star wheel mechanism 10 provided in this application improves the working part (lever 2) to be curved, with a conical head, realizing the function of hand-gripping the corn and effectively avoiding damage to the corn.

[0036] Explanation of push-button and grip-type levers:

[0037] Press-type agitation: Press-type agitation refers to the star wheel applying force to the corn cob with a pressing motion when agitating it, causing the corn cob to move. This method may put too much pressure on the corn cob, easily leading to damage.

[0038] Hand-grip turning: The shape design of the star wheel allows it to be turned like a hand gripping a corn cob during operation, turning the corn in a more gentle way that fits the shape of the corn cob. The pressure on the corn cob is relatively small during the turning process, thus avoiding the corn kernels falling out and the cob being damaged. It can hold the corn cob more efficiently, smoothly and at a reasonable angle.

[0039] For a specific implementation of the star wheel mechanism 10 of this application, please refer to... Figures 1-3 The star wheel mechanism 10 provided in this application includes:

[0040] Star Wheel Integrated Part 1;

[0041] The lever 2 is set in the star wheel integrated part 1. The lever 2 is shaped like a bent finger. When the star wheel integrated part 1 drives the lever 2 to rotate, it moves the plant fruit spike in a grasping manner.

[0042] The star wheel integrated unit 1 rotates under power drive, causing the curved, finger-shaped lever 2 to rotate synchronously. During rotation, the lever 2, due to its curved shape, contacts the corn plant ear, applying force to the ear using a gripping motion similar to fingers. This causes the ear to move as the lever 2 rotates, thus achieving orderly movement of the corn plant ear and completing operations such as conveying the corn plant ear during corn harvesting. Compared to the traditional pressing and actuating method of the straight lever 2, this gripping action of the curved, finger-shaped lever 2 better conforms to the shape of the corn plant ear, reducing direct pressure on the ear and effectively preventing damage during operation, ensuring the integrity of the corn ear, and improving the quality of corn harvesting. At the same time, the gripping action more stably moves the corn plant ear, reducing shaking and falling of the ear during the actuation process, and improving work efficiency.

[0043] This application provides another star wheel mechanism 10, including:

[0044] Star Wheel Integrated Part 1;

[0045] The lever 2 is located in the star wheel integrated part 1. The star wheel integrated part 1 drives the lever 2 to rotate counterclockwise. The lever 2 is curved, and the direction of the curve is the same as the direction of rotation of the lever 2.

[0046] The star wheel integrated part 1 is driven by power to rotate counterclockwise, and the curved lever 2 mounted on it rotates accordingly. The bending direction of the lever 2 is the same as the rotation direction. When rotating, the lever 2 contacts the corn plant ear with its curved shape. Due to the coordination between the bending direction and the direction of movement, the lever 2 can more smoothly apply force to the corn plant ear along the rotation direction, pushing the plant ear backward to achieve the plucking effect.

[0047] Compared to the traditional straight lever 2 structure, the curved lever 2 distributes pressure on the corn ears more evenly and reasonably during the pulling process, reducing the possibility of ear damage due to excessive local pressure. This effectively avoids damage to the corn ears during harvesting and ensures the quality of the corn. At the same time, this design helps improve the conveying stability of the corn stalks and ears in the star wheel mechanism 10, reduces jamming, and enhances the smoothness of the overall harvesting operation.

[0048] Another star wheel mechanism 10 provided in this application includes:

[0049] Star Wheel Integrated Part 1;

[0050] A lever 2 is disposed on the star wheel integrated part 1. The star wheel integrated part 1 drives the lever 2 to rotate counterclockwise. The top part of the lever 2 away from the star wheel integrated part 1 has an angle with the radial direction of the star wheel integrated part 1, including an acute angle.

[0051] The star wheel integrated part 1 drives the lever 2 to rotate counterclockwise. The top part of the lever 2, away from the star wheel integrated part 1, forms an acute angle with the radial direction of the star wheel integrated part 1. During rotation, the top of the lever 2 contacts the plant ear. Due to the existence of this acute angle, the force exerted by the lever 2 on the plant ear can be decomposed into a component force that pushes the plant ear along the direction of rotation and a component force that squeezes the plant ear towards the center of the star wheel. The former pushes the plant ear backward, while the latter clamps the plant ear to a certain extent, thereby achieving effective manipulation and stable transport of the corn plant ear.

[0052] The acute angle between the tip of lever 2 and the radial direction allows lever 2 to both push and hold the corn ears when agitating them. This design makes the corn ears more stable during agitation, reducing offset and detachment of the ears within the star wheel mechanism 10, thus improving operational reliability. By appropriately setting the angle range (e.g., 23.66 degrees to 33.66 degrees, especially 28.66 degrees), the force exerted by lever 2 on the ears can be optimized. Compared to the traditional straight lever 2 structure, this reduces damage to the corn ears, ensures the integrity of the ears during harvesting, and helps improve the quality and efficiency of corn harvesting operations.

[0053] In some embodiments, the included angle ranges from 23.66 degrees to 33.66 degrees.

[0054] In some embodiments, the included angle includes 28.66 degrees.

[0055] The star wheel integrated unit 1 drives the lever 2 to rotate, with the angle between the tip of lever 2 and the radial direction ranging from 23.66 degrees to 33.66 degrees. During operation, this angle range allows lever 2 to generate appropriate pushing and clamping forces when applying force to the corn plant ear. The pushing force moves the plant ear backward, while the clamping force ensures the stability of the plant ear during the turning process, thus achieving efficient and stable corn plant ear turning operation.

[0056] By limiting the included angle to between 23.66 and 33.66 degrees, within this range, lever 2 can better adapt to corn ears in different growth stages and shapes, ensuring effective movement of the ears while minimizing damage. Compared to structures without optimized angles, this design improves the adaptability and stability of corn harvesting operations, ensures the integrity of corn ears during harvesting, enhances harvesting quality, and reduces yield losses due to ear damage.

[0057] The star wheel integrated component 1 drives the lever 2 to rotate, with the top of lever 2 forming a radial angle of 28.66 degrees. During operation, this specific angle allows the force applied by lever 2 to the corn plant ear to be precisely decomposed into a component force that pushes the plant ear backward and a moderate clamping component force. The pushing component force ensures the smooth backward transport of the plant ear, while the clamping component force maintains the stability of the plant ear during the turning process, achieving orderly turning of the corn plant ear.

[0058] A value of 28.66 degrees was chosen as the angle between the tip of lever 2 and the radial direction. At this angle, lever 2 achieves the optimal balance between pushing and clamping the corn ears, efficiently propelling the ears backward while ensuring stable clamping and minimizing the risk of damage. Compared to other angles, this angle significantly improves the efficiency and quality of corn harvesting, reduces ear breakage, and increases both yield and quality.

[0059] In some embodiments, the lever 2 includes a main rod and a top part 3, the top part 3 being connected to the end of the main rod away from the star wheel integral part 1, the main rod including a straight part and a curved part connected to each other, the straight part and the curved part having an included angle.

[0060] The star wheel integrated part 1 drives the lever 2 to rotate. The lever 2 consists of a main rod and a top part 3. The main rod includes a straight section and a curved section, which are connected at an angle. During rotation, the curved section of the main rod first contacts the corn plant ear. Due to the shape of the curved section and its angle with the straight section, the lever 2 can apply force to the corn plant ear at a certain angle and force, achieving the plucking effect. At the same time, the top part 3 is connected to the end of the main rod away from the star wheel integrated part 1, and further interacts with the corn plant ear during the plucking process, working together with the main rod to complete the operation of the corn plant ear.

[0061] The straight and curved sections of the main rod, along with the angle between them, allow the lever 2 to better adapt to changes in the shape and position of the corn ear when in contact with it, improving the flexibility and effectiveness of the plucking action. The presence of the tip component 3 enhances the effect of the lever 2 on the corn ear, playing a particularly important role in clamping and guiding it. Compared to a simpler lever 2 structure, this design provides more stable plucking of the corn ear, reduces damage, improves the stability and reliability of corn harvesting operations, and helps ensure the integrity of the corn ear.

[0062] The top component 3 is connected to the curved part, and the top component 3 includes a conical structure. The star wheel integrated part 1 drives the lever 2 to rotate. The top component 3 of the lever 2 is a conical structure and is connected to the curved part of the main rod. During operation, when the conical top component 3 contacts the corn plant ear, its shape allows it to better insert into the gap between the plant ear or fit against the surface of the plant ear. As the lever 2 rotates, the conical structure uses its surface shape to apply force to the plant ear, guiding the plant ear to move along the direction of movement of the lever 2. At the same time, the curved part of the main rod works in concert to realize the agitation and transport of the corn plant ear.

[0063] The conical tip component 3 improves the contact between the lever 2 and the corn ear, making it easier to insert into the ear cluster and effectively guide and move the ear. Compared to a conventionally shaped tip component 3, the conical structure reduces direct collisions and compression of the corn ear during movement, lowering the risk of ear damage. Simultaneously, this structure enhances the lever 2's adaptability to corn ears at different growth stages, improving the stability and efficiency of corn harvesting operations and ensuring the integrity of the corn ear during harvesting.

[0064] The included angle is between 23.66 degrees and 33.66 degrees. The star wheel integrated part 1 drives the lever 2 to rotate, and the included angle between the straight part and the curved part of the main rod is between 23.66 degrees and 33.66 degrees. During operation, this angle range allows the main rod to generate appropriate force distribution when it comes into contact with the corn plant ear. The curved part applies a pulling force to the plant ear at an appropriate angle, while the straight part provides support and guidance to a certain extent. As the lever 2 rotates, the structural design within this angle range can effectively push the plant ear backward and maintain stability.

[0065] The angle between the straight and curved sections of the main stem is limited to between 23.66 and 33.66 degrees to optimize the agitation effect of the lever 2 on the corn ears. Within this range, the lever 2 can flexibly adjust the force according to the different conditions of the corn ears, reducing damage to the corn ears caused by improper angles. Compared with other angle ranges, this design improves the adaptability of corn harvesting operations to corn ears under various growth conditions, ensures the stability of corn ears during agitation, reduces ear drop and damage, and thus improves the quality and yield of corn harvesting.

[0066] The included angle is 28.66 degrees. The star wheel integrated part 1 drives the lever 2 to rotate, with the included angle between the straight part and the curved part of the main rod being 28.66 degrees. During operation, this specific angle allows the main rod to precisely convert rotational power into a plucking and pushing force on the corn ear at the moment of contact with the corn plant. The curved part applies force to the corn ear at an angle of 28.66 degrees, allowing the corn ear to move smoothly backward, while the straight part provides stable support and guidance at this angle, ensuring that the lever 2 maintains an effective action on the corn ear throughout the rotation process.

[0067] The angle of 28.66 degrees, between the straight and curved sections of the main stem, was optimized. At this angle, the lever 2 achieves the best effect in moving and pushing the corn ears, minimizing damage to the ears while ensuring efficient operation. Compared to other angles, this angle significantly improves the efficiency and stability of corn harvesting, reduces the breakage rate of corn ears, improves the quality and yield of harvested corn, and ensures the smooth progress of corn harvesting.

[0068] A corn harvester includes a star wheel mechanism 10 as described above. When the corn harvester is in operation, the star wheel mechanism 10 installed inside it begins to operate. The integrated star wheel 1 rotates under the drive of the harvester's power system, driving the lever 2 to actuate the corn stalks and ears according to the design features (such as a curved shape, a specific angle, etc.) in the respective embodiments. The lever 2, through a gripping action, orderly conveys the corn stalks and ears backward while avoiding damage to the ears, providing a stable and complete supply of stalks and ears for subsequent corn harvesting processes (such as ear picking, husking, etc.).

[0069] Thanks to the star wheel mechanism 10 with the features described in the above embodiments, the corn harvester exhibits significant advantages in corn harvesting operations. Compared to traditional corn harvesters, it can more effectively agitate the corn stalks and ears, reducing damage to the ears during transport and improving the quality and yield of corn harvesting. The optimized design of the star wheel mechanism 10 improves the overall working efficiency and stability of the corn harvester, reduces economic losses caused by damaged corn ears, and also reduces the probability of downtime for maintenance due to malfunctions, thereby improving the reliability and service life of the corn harvester and making corn harvesting operations more efficient, economical, and reliable.

[0070] The star wheel integrated part 1 of the corn harvester consists of a main frame, a mounting base, transmission connection components, and reinforcing ribs or rib plate structures.

[0071] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A star wheel mechanism, characterized in that, include: Star wheel integrated part; A lever is provided in the star wheel integral part. The lever is shaped like a curved finger. When the star wheel integral part drives the lever to rotate, it actuates the fruit spike in a grasping manner.

2. A star wheel mechanism, characterized in that, include: Star wheel integrated part; A lever is disposed in the star wheel integral part. The star wheel integral part drives the lever to rotate counterclockwise. The lever is curved, and the direction of curvature is the same as the direction of rotation of the lever.

3. A star wheel mechanism, characterized in that, include: Star wheel integrated part; A lever is disposed in the star wheel integral part, the star wheel integral part drives the lever to rotate counterclockwise, and the top part of the lever away from the star wheel integral part has an angle with the radial direction of the star wheel integral part, the angle including an acute angle.

4. The star wheel mechanism according to claim 3, characterized in that, The included angle ranges from 23.66 degrees to 33.66 degrees.

5. The star wheel mechanism according to claim 3, characterized in that, The included angle is 28.66 degrees.

6. The star wheel mechanism according to any one of claims 1-3, characterized in that, The lever includes a main rod and a top component. The top component is connected to the end of the main rod away from the star wheel integral part. The main rod includes a straight part and a curved part connected to each other. The straight part and the curved part have an angle between them.

7. The star wheel mechanism according to claim 6, characterized in that, The top part is connected to the curved portion, and the top part includes a conical structure.

8. The star wheel mechanism according to claim 6, characterized in that, The included angle includes an angle between 23.66 degrees and 33.66 degrees.

9. The star wheel mechanism according to claim 8, characterized in that, The included angle is 28.66 degrees.

10. A corn harvester, characterized in that, Includes the star wheel mechanism as described in any one of claims 1-5.

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