Roller feeding anti-winding material guiding structure and harvester feeding roller mechanism

Abstract

The utility model provides a roller feeding anti-winding material guiding structure and a harvester feeding roller mechanism, the roller feeding anti-winding material guiding structure comprises a material guiding crescent and an anti-winding ring, one end of the material guiding crescent is provided with a crescent hub, the crescent hub and the anti-winding ring are oppositely arranged in the axial direction, and the other end of the crescent hub and the anti-winding ring are oppositely arranged in the axial direction. A plurality of cut-off notches are formed in the side wall of the end, facing the anti-winding ring, of the crescent hub, and a grass discharging through groove is formed in the middle of the side wall of the crescent hub; the end, facing the crescent hub, of the anti-winding ring is provided with a protruding cutting edge, and the cutting edge extends into the crescent hub. According to the utility model, the cut-off notch on the crescent hub can cut off materials wound on the anti-winding ring in time; through the cutting edges of the anti-winding rings, materials entering the crescent hubs can be cut and centrifugal force can be applied, so that the cut materials are discharged along the straw discharging through grooves; excessive grass winding at the inlet of the feeding roller is avoided, and the precision requirement of the material guide crescent is reduced.

Description

Technical Field

[0001] This utility model relates to the field of harvester feeding roller technology, specifically to a roller feeding anti-tangling guide structure and a harvester feeding roller mechanism. Background Technology

[0002] With the development of modern agriculture, mechanized harvesting has become the main method of crop harvesting. However, with the diversification of agricultural planting structures, modern agricultural harvesting machinery not only needs to efficiently harvest common crops such as wheat, corn, and soybeans, but also needs to adapt to the harvesting needs of difficult-to-thresh crops such as rice, miscellaneous grains, and chickpeas. This makes the performance requirements of the key component of harvesting machinery—the drum feeding device—increasingly higher.

[0003] In traditional feed rollers, the guide crescent is located at the feed end, and its outer arc surface guides the material along the outer circumference of the feed roller. A circular anti-tangling ring is fitted on the shaft between the guide crescent and the feed roller blades to prevent material from directly tangling on the shaft and entering the guide crescent. In actual operation, controlling the gap between the guide crescent and the feed roller blades is crucial. If the gap is too large, excessive material can easily become entangled on the circular anti-tangling ring, leading to material accumulation at the feed inlet, causing blockages, blade damage, and even friction-induced fire. If the gap is too small, the frictional force at the gap increases dramatically, which not only accelerates blade wear but may also directly cause friction-induced fire, posing a serious safety hazard.

[0004] Furthermore, the precision of the gap between the roller feed blades and the guide crescent is often difficult to guarantee due to manufacturing and assembly errors. This imprecise gap setting makes it difficult for harvesting machinery to achieve ideal harvesting results when harvesting crops that are difficult to thresh or those with tough straw, thus limiting the applicability of harvesting machinery and restricting the efficiency and flexibility of agricultural production. Utility Model Content

[0005] The technical problem to be solved by this utility model is: how to reduce the precision requirements of the guide crescent while avoiding excessive grass wrapping at the feed roller inlet, which can lead to blockage, blade damage, or even friction-induced fire.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0007] This utility model provides a roller feeding anti-tangling guide structure, including a guide crescent and an anti-tangling ring. One end of the guide crescent is provided with a crescent hub. The crescent hub and the anti-tangling ring are arranged opposite each other in the axial direction. Multiple cutting notches are opened on the side wall of the crescent hub facing the anti-tangling ring. A grass discharge groove is opened in the middle of the side wall of the crescent hub. The anti-tangling ring is provided with a protruding cutting blade at the end facing the crescent hub, and the cutting blade extends into the crescent hub.

[0008] The beneficial effects of this utility model are:

[0009] By employing this invention, the material wrapped around the anti-winding ring can be cut off in time during the relative movement between the crescent-shaped hub and the anti-winding ring through the cutting notch on the crescent-shaped hub, thereby relieving the entanglement. The cutting edge of the anti-winding ring can also chop the material entering the crescent-shaped hub and apply centrifugal force, causing the material to be discharged along the discharge channel after being chopped. This avoids the problems of excessive entanglement at the feed roller inlet, which can lead to blockage, blade damage, or even friction-induced fire, and reduces the precision requirements of the guiding crescent.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, the cutting edge is arc-shaped and arranged around the axis of the anti-winding ring.

[0012] It reduces the resistance of the material to the cutting edge, which helps to reduce mechanical wear; at the same time, the cutting direction of the cutting edge is consistent with the extension direction, which helps to maintain the sharpness of the cutting edge.

[0013] Furthermore, the cutting blades are provided in at least two and distributed in a spiral shape.

[0014] Spiral distribution: One end of the cutting blade is located inside the previous cutting blade, and the other end is located outside the next cutting blade, so that the first and second ends are connected to form a loop.

[0015] It facilitates increasing the radial cutting range, thoroughly chopping the material, and also facilitates the rotation of the material.

[0016] Furthermore, the center of the crescent-shaped hub is provided with a boss that protrudes towards the anti-winding ring, and there is an annular gap between the outer side of the boss and the inner wall of the crescent-shaped hub that can accommodate the cutting blade; the grass discharge groove is directly opposite the boss.

[0017] The boss design isolates the inner annular gap of the crescent hub from the feed roller shaft, preventing grass from getting tangled in the shaft and allowing the cutting blade to better shred the material. The grass discharge channel is directly opposite the boss, improving the material discharge efficiency.

[0018] Furthermore, the grass-draining groove extends circumferentially along the crescent-shaped hub.

[0019] It improves the efficiency of material discharge.

[0020] Furthermore, the side of the material guide crescent facing the anti-winding ring is flush with the end of the crescent wheel hub facing the anti-winding ring.

[0021] This design facilitates the movement of material on the crescent-shaped hub along the cutting notch, preventing grass from getting tangled on the hub and allowing for more efficient material cutting and removal of tangled grass.

[0022] Furthermore, the side of the material guiding crescent facing the anti-winding ring is also provided with a cutting and grass-discharging groove, one end of which extends into the crescent hub and the other end extends into the outer arc surface of the material guiding crescent.

[0023] When longer pieces of hay enter the crescent-shaped hub, the cutting and discharge groove cuts them off. The hay inside the hub is shredded, while the hay outside is discharged along the cutting and discharge groove and can continue to be guided by the outer arc surface of the guide crescent, thus improving feeding efficiency.

[0024] Furthermore, the outer wall of the crescent-shaped hub is provided with a stiffening plate, which is connected to the inner arc side of the guiding crescent.

[0025] The strength of the guide crescent has been improved.

[0026] Furthermore, the anti-winding ring extends into the crescent-shaped hub, and a guide baffle is provided on the anti-winding ring. The guide baffle extends spirally along the circumference of the anti-winding ring, and the spiral direction of the guide baffle is opposite to the extension direction of the crescent-shaped guide ring. The end of the anti-winding ring away from the crescent-shaped hub is flush with the guide baffle.

[0027] During installation, the guide baffle can be arranged close to the feeding blade. With the rotational guidance of the guide baffle and the stationary guidance of the crescent-shaped guide, the material moves to the outer periphery of the feeding roller to the area where the feeding blade is located, improving feeding efficiency. At the same time, the presence of the guide baffle can prevent the material wrapped on the anti-winding ring from spreading to the feeding blade. The guide baffle cooperates with the edge of the cutting notch, making the cutting notch cut the material more efficiently. The anti-winding ring extends into the crescent-shaped hub. The anti-winding ring cooperates with multiple cutting notches, making it easier to cut the wrapped material into multiple segments, making it easier to enter the crescent-shaped hub, and thus being shredded and discharged faster, effectively avoiding the blockage caused by grass entanglement.

[0028] This utility model also provides a harvester feeding roller mechanism, including a feeding roller and a frame. The inlet end of the feeding roller is provided with a cylindrical shaft, which is connected to the frame through a bearing. It also includes the above-mentioned roller feeding anti-winding guide structure, in which the crescent hub and the anti-winding ring are both sleeved on the cylindrical shaft. The anti-winding ring is located between the crescent hub and the feeding roller. The cylindrical shaft and the anti-winding ring are connected in a driving connection. The crescent hub is fixed on the frame.

[0029] This avoids the problems of excessive straw entanglement at the feed roller inlet, which can lead to blockages, blade damage, or even friction-induced fires, and reduces the precision requirements of the guide crescent. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the anti-tangling guide structure for roller feeding of this utility model.

[0031] Figure 2This is a schematic diagram of the crescent-shaped material guide.

[0032] Figure 3 A schematic diagram of the structure to prevent tangling.

[0033] Figure 4 This is a schematic diagram of the feeding roller mechanism of the harvester according to this utility model.

[0034] In the accompanying drawings, the technical features represented by each reference numeral are as follows:

[0035] 1-Guide crescent; 2-Anti-winding ring; 3-Crescent hub; 4-Cutting notch; 5-Grass discharge trough; 6-Cutting blade; 7-Boss; 8-Rib; 9-Cutting and grass discharge trough; 10-Guide baffle; 11-Feeding roller; 12-Cylinder shaft. Detailed Implementation

[0036] The principles and features of this utility model are described below. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0037] This utility model refers to Figure 1-4 .

[0038] This utility model provides a roller feeding anti-tangling guide structure, including a guide crescent 1 and an anti-tangling ring 2. One end of the guide crescent 1 is provided with a crescent hub 3. The crescent hub 3 and the anti-tangling ring 2 are arranged opposite each other in the axial direction. Multiple cutting notches 4 are opened on the side wall of the crescent hub 3 facing the anti-tangling ring 2. A grass discharge groove 5 is opened in the middle of the side wall of the crescent hub 3. The anti-tangling ring 2 is provided with a protruding cutting blade 6 at the end facing the crescent hub 3. The cutting blade 6 extends into the crescent hub 3.

[0039] principle:

[0040] During manufacturing, the guide crescent 1 and the anti-winding ring 2 are two independent components. During installation, the guide crescent 1 is located at the feed end of the feed roller 11 and fixed to its frame. The roller shaft 12 of the feed roller 11 passes sequentially through the middle of the anti-winding ring 2 and the crescent hub 3, and is then connected to the frame via bearings. The roller shaft 12 and the anti-winding ring 2 are connected by a drive mechanism, and the anti-winding ring 2 can be arranged to fit snugly against the feed blades. The gap between the guide crescent 1 and the feed blades can be slightly widened.

[0041] During operation, the feeding roller 11 and the anti-winding ring 2 rotate. When the material enters, it is guided by the outer arc surface of the guide crescent 1 to move towards the outer periphery of the feeding roller 11, which facilitates the feeding blades to pull the material. When grass gets tangled in the gap between the guide crescent 1 and the feeding blades, the anti-winding ring 2 causes the material to rotate rapidly relative to the crescent hub 3. When the material contacts the cutting notch 4 of the crescent hub 3, it is cut off. Some material leaves the anti-winding ring 2 and continues to flow into the area where the feeding blades are located. A small amount of material enters the crescent hub 3. The material entering the crescent hub 3 will be cut and broken multiple times by the cutting blade 6. At the same time, the material generates centrifugal force as it rotates with the cutting blade 6 during the cutting process. Under the action of centrifugal force, the material is discharged along the grass discharge channel 5.

[0042] By employing this utility model, the material wrapped around the anti-winding ring 2 can be cut off in time by the cutting notch 4 on the crescent hub 3 when there is relative movement between the crescent hub 3 and the anti-winding ring 2, thereby relieving the entanglement. The cutting blade 6 of the anti-winding ring 2 can chop the material entering the crescent hub 3 and apply centrifugal force, so that the material is discharged along the discharge channel 5 after being chopped. This avoids the problem of excessive entanglement of grass at the inlet of the feeding roller 11, which can lead to blockage, blade damage, or even friction fire, and reduces the precision requirements of the guiding crescent 1.

[0043] Furthermore, the cutting blade 6 is arc-shaped and arranged around the axis of the anti-winding ring 2.

[0044] The resistance of the material to the cutting edge 6 is reduced, which helps to reduce mechanical wear; at the same time, the cutting direction of the cutting edge 6 is consistent with the extension direction, which helps to maintain the sharpness of the cutting edge 6.

[0045] Furthermore, the cutting blade 6 is provided with at least two blades and is distributed in a spiral shape.

[0046] Spiral distribution: One end of the cutting blade 6 is located inside the previous cutting blade 6, and the other end is located outside the next cutting blade 6, so that the first and second ends are connected to form a ring.

[0047] It facilitates increasing the radial cutting range, thoroughly chopping the material, and also facilitates the rotation of the material.

[0048] Furthermore, the center of the crescent wheel hub 3 is provided with a boss 7 that protrudes towards the anti-winding ring 2, and there is an annular gap between the outer side of the boss 7 and the inner wall of the crescent wheel hub 3 that can accommodate the cutting blade 6; the grass discharge groove 5 is directly opposite the boss 7.

[0049] The design of the boss 7 can isolate the inner annular gap of the crescent hub 3 from the cylinder shaft 12 of the feeding roller 11, preventing the cylinder shaft 12 from getting tangled with grass, while allowing the cutting blade 6 to better cut the material; the grass discharge channel 5 is directly opposite the boss 7, which improves the material discharge efficiency.

[0050] Furthermore, the grass drainage groove 5 extends circumferentially along the crescent-shaped hub 3.

[0051] It improves the efficiency of material discharge.

[0052] Furthermore, the side of the guiding crescent 1 facing the anti-winding ring 2 is flush with the end of the crescent hub 3 facing the anti-winding ring 2.

[0053] This facilitates the movement of material on the crescent hub 3 along the cutting notch 4, preventing grass from getting tangled on the crescent hub 3, and also makes it easier to cut the material more efficiently and remove the tangled grass.

[0054] Furthermore, the crescent-shaped guide 1 is provided with a cutting and grass-discharging groove 9 on the side facing the anti-winding ring 2. One end of the cutting and grass-discharging groove 9 extends into the crescent-shaped hub 3, and the other end extends into the outer arc surface of the crescent-shaped guide 1.

[0055] When longer pieces of hay enter the crescent hub 3, the cutting and discharge groove 9 cuts them off. The hay inside the crescent hub 3 is shredded, while the hay outside is discharged along the cutting and discharge groove 9 and can continue to be guided by the outer arc surface of the guiding crescent 1, thus improving feeding efficiency.

[0056] Furthermore, the outer wall of the crescent hub 3 is provided with a stiffening plate 8, which is connected to the inner arc side of the guiding crescent 1.

[0057] The strength of the guide crescent 1 was improved.

[0058] Furthermore, the anti-winding ring 2 extends into the crescent hub 3, and a guide baffle 10 is provided on the anti-winding ring 2. The guide baffle 10 extends spirally along the circumference of the anti-winding ring 2, and the spiral direction of the guide baffle 10 is opposite to the extension direction of the guiding crescent 1. The end of the anti-winding ring 2 away from the crescent hub 3 is flush with the guide baffle 10.

[0059] Note: The guide baffle 10 can be one or more pieces. When there is only one piece, its outer arc edge smoothly transitions with the anti-winding ring 2, which can also be regarded as the guide baffle 10 extending spirally along the circumference of the anti-winding ring 2. According to this meaning, the material guiding crescent 1 can also be regarded as extending spirally along the circumference of the crescent hub 3. Therefore, the extension direction of the material guiding crescent 1 is similar to the spiral direction of the material guiding crescent 1.

[0060] During installation, the guide baffle 10 can be arranged close to the feeding blade. With the rotational guidance of the guide baffle 10 and the stationary guidance of the crescent-shaped guide 1, the material moves to the outer periphery of the feeding roller 11 to the area where the feeding blade is located, improving the feeding efficiency. At the same time, the presence of the guide baffle 10 can prevent the material wrapped on the anti-winding ring 2 from spreading to the feeding blade. The guide baffle 10 cooperates with the edge of the cutting notch 4, making the cutting notch 4 cut the material more efficiently. The anti-winding ring 2 extends into the crescent-shaped hub 3. The anti-winding ring 2 cooperates with multiple cutting notches 4, making it easier to cut the wrapped material into multiple segments, making it easier to enter the crescent-shaped hub 3, and thus be shredded and discharged faster, effectively avoiding the blockage caused by grass wrapping.

[0061] This utility model also provides a harvester feeding roller mechanism, including a feeding roller 11 and a frame. The inlet end of the feeding roller 11 is provided with a cylindrical shaft 12, which is connected to the frame through a bearing. It also includes the above-mentioned roller feeding anti-winding guide structure, in which the crescent hub 3 and the anti-winding ring 2 are both sleeved on the cylindrical shaft 12. The anti-winding ring 2 is located between the crescent hub 3 and the feeding roller 11. The cylindrical shaft 12 is connected to the anti-winding ring 2 in a driving connection. The crescent hub 3 is fixed on the frame.

[0062] Note: The frame is existing technology for the feed roller mechanism of a harvester and is not shown in the figure.

[0063] This avoids the problems of excessive grass entanglement at the inlet of the feed roller 11, which can lead to blockage, blade damage, or even friction-induced fire, and reduces the precision requirements of the guide crescent 1.

[0064] In the description of this utility model, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this utility model and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0065] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this utility model, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixing," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixing" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0067] In this utility model, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood according to the specific circumstances, the context, and the coherence of the preceding and following text.

[0068] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0069] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.

Claims

1. A roller-feeding anti-tangling material guiding structure, characterized in that: The device includes a crescent-shaped guide (1) and an anti-winding ring (2). One end of the crescent-shaped guide (1) is provided with a crescent-shaped hub (3). The crescent-shaped hub (3) and the anti-winding ring (2) are arranged opposite each other in the axial direction. Multiple cutting notches (4) are opened on the side wall of the crescent-shaped hub (3) facing the anti-winding ring (2). A grass discharge groove (5) is opened in the middle of the side wall of the crescent-shaped hub (3). The anti-winding ring (2) is provided with a protruding cutting blade (6) at the end facing the crescent-shaped hub (3). The cutting blade (6) extends into the crescent-shaped hub (3).

2. The roller feeding anti-tangling guiding structure according to claim 1, characterized in that: The cutting blade (6) is arc-shaped and arranged around the axis of the anti-winding ring (2).

3. The roller feeding anti-tangling guiding structure according to claim 2, characterized in that: The cutting blade (6) has at least two blades and is distributed in a spiral shape.

4. The roller feeding anti-tangling guide structure according to claim 2 or 3, characterized in that: The crescent hub (3) is also provided with a boss (7) protruding towards the anti-winding ring (2) in the middle. There is an annular gap between the outer side of the boss (7) and the inner wall of the crescent hub (3) that can accommodate the cutting blade (6). The grass discharge groove (5) is directly opposite the boss (7).

5. The roller feeding anti-tangling guiding structure according to claim 1, characterized in that: The grass drainage channel (5) extends circumferentially along the crescent hub (3).

6. The roller feeding anti-tangling guiding structure according to claim 1, characterized in that: The side of the material guide crescent (1) facing the anti-winding ring (2) is flush with the end of the crescent hub (3) facing the anti-winding ring (2).

7. The roller feeding anti-tangling guiding structure according to claim 6, characterized in that: The crescent-shaped guide (1) is also provided with a cutting and grass-discharging groove (9) on the side facing the anti-winding ring (2). One end of the cutting and grass-discharging groove (9) extends into the crescent-shaped hub (3), and the other end extends to the outer arc surface of the crescent-shaped guide (1).

8. The roller feeding anti-tangling guide structure according to claim 7, characterized in that: The outer wall of the crescent hub (3) is provided with a stiffening plate (8), which is connected to the inner arc side of the guide crescent (1).

9. The roller feeding anti-tangling guiding structure according to claim 6, characterized in that: The anti-winding ring (2) extends into the crescent hub (3). A guide baffle (10) is provided on the anti-winding ring (2). The guide baffle (10) extends spirally along the circumference of the anti-winding ring (2). The spiral direction of the guide baffle (10) is opposite to the extension direction of the guiding crescent (1). The end of the anti-winding ring (2) away from the crescent hub (3) is flush with the guide baffle (10).

10. A harvester feeding drum mechanism, characterized in that: The device includes a feeding roller (11) and a frame. The inlet end of the feeding roller (11) is provided with a cylindrical shaft (12), which is connected to the frame via bearings. It also includes a roller feeding anti-tangling guide structure as described in any one of claims 1-9. The crescent hub (3) and the anti-tangling ring (2) are both sleeved on the cylindrical shaft (12). The anti-tangling ring (2) is located between the crescent hub (3) and the feeding roller (11). The cylindrical shaft (12) and the anti-tangling ring (2) are connected by a drive. The crescent hub (3) is fixed on the frame.

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