A crop divarication device for an agricultural harvester

Abstract

The utility model relates to agricultural machinery technical field, concretely relates to a kind of agricultural harvester's poking device, including poking wheel axle;Pulley is set in the both ends of poking wheel axle, and pulley is set with multiple spoke plates on circumference;Poking rod is set with poking rod in the one end of each spoke plate outward, and multiple elastic teeth are set on poking rod, and one end of elastic tooth is set as the direction of the direction of rotation of poking wheel axle extension;Wherein, spoke plate is divided into fixed part and telescopic part, pulley is connected with the fixed part of spoke plate, poking rod is set in the outer end of telescopic part of spoke plate, and telescopic part of spoke plate is set as being able to contract along the radial direction of pulley.This utility model sets up the spoke plate that can contract along radial direction on pulley, installs poking rod in telescopic part of spoke plate, when poking rod excess poking or distance ground too close to plow, poking rod is contracted radially inward in the stress in the process of extruding crop, and the pressure of poking rod to crop is reduced.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a harvesting device for an agricultural harvester. Background Technology

[0002] The rake mechanism is a component on an agricultural harvester used to move the crops to be harvested toward the harvesting assembly. Rake mechanisms are generally divided into two types: pressure plate type and spring tooth type. The pressure plate type rake mechanism is gradually being replaced by the spring tooth type rake mechanism because the pressure plate can easily put too much pressure on the crops and cause the grains to fall off.

[0003] Compared to the pressure plate type, the toothed reeling device reduces the compression radius but adds flexible teeth. The teeth bend under pressure, thus reducing the compression of crops and better organizing them. This allows the crops to be neatly moved towards the harvesting components. It also helps to lift and guide lodged crops, reducing the rate of missed harvesting.

[0004] However, in a serrated reeling device, the serrations are primarily used to comb through the crops and to lift and guide them towards the harvesting assembly. The actual bending of the crops towards the harvesting assembly is done by the reeling rod, which is fixed to the serrations. Therefore, if the harvesting speed and the reeling device's rotation speed are mismatched, and a large number of crops are moved in a short period, the fixed reeling rod can still easily cause significant pressure on the crops, resulting in grain loss. Utility Model Content

[0005] The purpose of this utility model is to provide a crop-pulling device for an agricultural harvester, so as to solve the technical problem that the fixed-position crop-pulling rod in the prior art still causes excessive squeezing force on the crops when pulling a large amount of crops.

[0006] To solve the above-mentioned technical problems, this utility model specifically provides the following technical solution: A harvesting device for an agricultural harvester, comprising: Reel axle; The reel has a reel at both ends, and the reel has multiple spokes arranged circumferentially. The reel has a reel at one outward end of each spoke, and the reel has a plurality of spring teeth, one end of which is configured to extend in the direction of rotation of the reel shaft; The spokes are divided into a fixed part and a telescopic part. The wheel is connected to the fixed part of the spokes. The reaping rod is disposed at the outer end of the telescopic part of the spokes, and the telescopic part of the spokes is configured to extend and retract radially along the wheel.

[0007] As a preferred embodiment of the present invention, wheel rims are provided on the fixing parts of the plurality of spokes on the same side, two of the wheel rims are configured to be able to rotate around the reel shaft, and a plurality of levers are provided between the two wheel rims, with each of the levers corresponding to a plurality of reeling rods. The lever is provided with multiple guide holes, and the other end of the spring tooth extends inward and is inserted into the guide hole, and the other end of the spring tooth is configured to slide within the guide hole; The spring tooth is configured to wrap around the reel and rotate around the reel, and the spring tooth rotates on the reel when the two wheels rotate.

[0008] As a preferred embodiment of the present invention, a plurality of sleeves are provided on the reeling stalk, and a plurality of spring teeth are respectively wound around the plurality of sleeves, and the sleeves are configured to be able to rotate around the reeling stalk.

[0009] As a preferred embodiment of the present invention, a spoke disc is provided inside each wheel rim via multiple spoke rods, and the spoke disc is rotatably mounted on the reel shaft; Two arc-shaped sliding openings are provided on the wheel disk, and two semi-toothed screws are provided on the spoke disk. The two semi-toothed screws pass through the two arc-shaped sliding openings respectively, and the smooth section of the semi-toothed screws is configured to slide within the arc-shaped sliding openings. Furthermore, the threaded sections of the two semi-threaded screws extend out of the arc-shaped sliding opening and are jointly mounted with a pressure plate. The pressure plate is rotatably mounted at the end of the reel shaft, and the pressure plate is configured to be locked onto the wheel disc by a nut on the semi-threaded screw.

[0010] In a preferred embodiment of this utility model, the spoke is a hollow structure, and a spring telescopic rod is provided inside the spoke. The telescopic part of the spring telescopic rod is fixed to the telescopic part of the spoke, and the fixed part of the spring telescopic rod is fixed to the fixed part of the spoke.

[0011] As a preferred embodiment of this utility model, a spoke frame is provided on a plurality of spokes on the same side, the spoke frame is fixed to the fixed part of the spokes, and the spoke frame fixes the plurality of spokes around the wheel at equal intervals.

[0012] Compared with the prior art, this utility model has the following advantages: This invention features radially expandable spokes on a reel, with the reeling rod installed on the expandable part of the spokes. When the reeling rod reels too much rice or too close to the ground, it contracts radially inward under pressure during the compression of the crops, thus reducing the pressure of the reeling rod on the crops. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] Figure 1 A schematic diagram of the structure of the reeling device of an agricultural harvester is provided for embodiments of this utility model; Figure 2 A schematic diagram of the rod sleeve portion of the reeling device for an agricultural harvester is provided for embodiments of this utility model; Figure 3 A schematic diagram of the spring tooth part of the reeling device of an agricultural harvester is provided for embodiments of this utility model; Figure 4 A schematic diagram of the spring telescopic rod portion of the harvesting device for an agricultural harvester is provided for embodiments of this utility model.

[0015] The labels in the diagram represent the following: 1-Reel axle; 2-Reel disc; 3-Reeling stalk; 4-Rim; 21-Spoke plate; 22-Spoke frame; 23-Arc-shaped sliding mouth; 24-Pressure plate; 25-Spring telescopic rod; 31-Spring tooth; 32-Rod sleeve; 41-Pulling rod; 42-Guide hole; 43-Spoke rod; 44-Spoke disc; 45-Half-tooth screw. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] The rake mechanism is a component on an agricultural harvester used to move the crops to be harvested toward the harvesting assembly. Rake mechanisms are generally divided into two types: pressure plate type and spring tooth type. The pressure plate type rake mechanism is gradually being replaced by the spring tooth type rake mechanism because the pressure plate can easily put too much pressure on the crops and cause the grains to fall off.

[0018] Compared to the pressure plate type, the toothed reeling device reduces the compression radius but adds flexible teeth. The teeth bend under pressure, thus reducing the compression of crops and better organizing them. This allows the crops to be neatly moved towards the harvesting components. It also helps to lift and guide lodged crops, reducing the rate of missed harvesting.

[0019] However, in a spring-tooth type harvesting device, the springs are mainly inserted between the crops to comb them and lift and guide them towards the harvesting assembly. The actual pressing of the crops towards the harvesting assembly is primarily accomplished by the fixed spring teeth on the harvesting rod. Therefore, when the harvesting speed is too fast and the rotation speed of the harvesting device is mismatched, resulting in a large amount of crops being moved in a short period, the harvesting rod can still easily cause significant compression of the crops, leading to grain loss. To improve this problem, this invention provides a harvesting device for an agricultural harvester with a radially movable harvesting rod, thereby reducing the probability of the harvesting rod causing damage to the crops.

[0020] like Figure 1 As shown, this utility model provides a harvesting device for an agricultural harvester, comprising: Reel shaft 1; The wheel 2 is provided at both ends of the reel axle 1, and the wheel 2 has multiple spokes 21 arranged circumferentially. The reeling rod 3 is provided at the outward end of each spoke 21. The reeling rod 3 is provided with a plurality of spring teeth 31, and one end of the spring teeth 31 is configured to extend in the direction of rotation of the reeling wheel shaft 1. The spoke 21 is divided into a fixed part and a telescopic part. The wheel 2 is connected to the fixed part of the spoke 21. The reaping rod 3 is set at the outer end of the telescopic part of the spoke 21, and the telescopic part of the spoke 21 is configured to be able to extend and retract radially along the wheel 2.

[0021] This invention features radially extendable spokes 21 on a wheel 2, with the reel 3 mounted on the extendable portion of the spokes 21. When the reel 3 reels excessive grain or reels too close to the ground, it contracts radially inward under pressure during the crushing of the crops, reducing the pressure of the reel 3 on the crops and thus lowering the probability of crushing damage to the crops.

[0022] Specifically, during the harvesting process, when the harvesting speed is too fast and the crops accumulate rapidly in the harvesting components, the interaction force between the harvesting rods 3 and the crops increases due to the increased amount of crops between the harvesting rods 3 and the harvesting components. The harvesting rods 3 are subjected to radially inward compressive force, and the telescopic part of the spokes 21 contracts inward to increase the spacing and reduce the pressure of the harvesting rods 3 on the crops, thereby reducing the probability of the harvesting rods 3 causing crush damage to the crops.

[0023] Compared to conventional spring-tooth type rice-pulling devices, the spring teeth 31 of the rice-pulling device of this utility model are installed on the rice-pulling rod 3, which can be adjusted radially. This allows the rice-pulling rod 3 to retract radially inward when subjected to greater pressure, thereby reducing the pressure of the rice-pulling rod 3 on the crops.

[0024] Of course, during the actual harvesting process, the orientation angle of the spring teeth 31 needs to be adjusted according to the lodging state of the crops. Based on this, the following preferred embodiments are provided.

[0025] like Figure 1 , Figure 3 As shown, wheel rims 4 are provided on the fixing parts of multiple spokes 21 on the same side. Two wheel rims 4 are configured to rotate around the reel shaft 1. Multiple levers 41 are provided between the two wheel rims 4, and the multiple levers 41 correspond one-to-one with multiple reeling rods 3. Multiple guide holes 42 are provided on the lever 41, and the other end of the spring tooth 31 extends inward and is inserted into the guide hole 42. The other end of the spring tooth 31 is configured to slide within the guide hole 42. The spring tooth 31 is configured to be wound around the reeling rod 3 and be able to rotate around the reeling rod 3. When the two wheel rings 4 rotate, the spring tooth 31 rotates on the reeling rod 3.

[0026] In this embodiment, a wheel rim 4 is installed on the spoke plate 21, and a rotatable lever 41 is installed on the wheel rim 4. The lever 41 has a guide hole 42, and the other end of the spring tooth 31 is slidably inserted into the guide hole 42. When the wheel rim 4 rotates the lever 41, the lever 41 pushes the inward end of the spring tooth 31, and the spring tooth 31 rotates on the reel 3, changing the angle of the outward end of the spring tooth 31.

[0027] During this process, the guide hole 42 actuates the spring tooth 31 without affecting the radial movement of the spring tooth 31 following the reeling rod 3, nor does it affect the rotation of the spring tooth 31 on the reeling rod 3. The lever 41 is rotatable on the rim 4 to accommodate the inward tilting of the end of the spring tooth 31 as it rotates.

[0028] In addition, since the spring tooth 31 is rotatably mounted on the reeling rod 3, there is no rotational interference between the reeling rod 3 and the spring tooth 31. The reeling rod 3 can be rotatably mounted between the telescopic parts of the two spokes 21. When the reeling rod 3 presses the crop to move, the reeling rod 3 can roll on the crop. Compared with the traditional fixed reeling rod or pressure plate sliding on the crop, it can better protect the crop.

[0029] However, the direct rotational friction between the spring tooth 31 and the reeling rod 3 will also affect the lifespan of the spring tooth 31. Based on this, the following preferred embodiments are provided.

[0030] like Figure 2 , Figure 3 As shown, multiple sleeves 32 are provided on the reeling stalk 3, and multiple spring teeth 31 are respectively wound around the multiple sleeves 32, and the sleeves 32 are configured to be able to rotate around the reeling stalk 3.

[0031] In this embodiment, a sleeve 32 is provided between the spring tooth 31 and the reeling rod 3. The sleeve 32 is rotatably mounted on the reeling rod 3, and the spring tooth 31 is wound around the sleeve 32. Thus, when the spring tooth 31 is adjusted, the spring tooth 31 can drive the sleeve 32 to rotate on the reeling rod 3, thereby reducing the friction between the reeling rod 3 and the spring tooth 31.

[0032] Among them, the sleeve 31 can be a bearing-like structure to reduce rotational friction.

[0033] In the actual process of adjusting the angle of the spring tooth 31, the rim 4 is inconvenient to rotate because it is mounted on the fixed parts of multiple spokes 21. To improve this problem, the following preferred embodiment is provided.

[0034] like Figure 1 As shown, a spoke 44 is provided inside each rim 4 via multiple spoke rods 43, and the spoke 44 is rotatably mounted on the reel shaft 1; Two arc-shaped sliding openings 23 are provided on the wheel 2, and two semi-toothed screws 45 are provided on the spoke 44. The two semi-toothed screws 45 pass through the two arc-shaped sliding openings 23 respectively, and the smooth section of the semi-toothed screws 45 is configured to slide within the arc-shaped sliding openings 23. The threaded sections of the two semi-threaded screws 45 extend out of the arc-shaped sliding opening 23 and are jointly mounted with a pressure plate 24. The pressure plate 24 is rotatably mounted on the end of the reel shaft 1, and the pressure plate 24 is configured to be locked onto the wheel disc 2 by the nut on the semi-threaded screw 45.

[0035] In this embodiment, a spoke 44 is installed at the center of the rim 4 via a spoke rod 43. The spoke 44 can slide relative to the rim 2 by sliding with the semi-toothed screw 45 and the arc-shaped sliding mouth 23, thereby adjusting the rotation angle of the reamer 3 and thus adjusting the working angle of the spring tooth 3.

[0036] After adjustment, the pressure plate 24 is locked onto the wheel 2 by the nut, thereby locking the spoke 44 and the wheel 22 together, so that the reel shaft 1 can rotate the lever 44 and the reel 3 synchronously.

[0037] Furthermore, after the spokes 21 are compressed radially inward, when the reel 3 leaves the crop in the harvesting assembly area, the pressure on the reel 3 decreases, allowing the telescopic portion of the spokes 21 to extend radially outward and return to its original position. Specifically, as... Figure 4 As shown, the spoke 21 is a hollow structure, and a spring telescopic rod 25 is provided inside the spoke 21. The telescopic part of the spring telescopic rod 25 is fixed to the telescopic part of the spoke 21, and the fixed part of the spring telescopic rod 25 is fixed to the fixed part of the spoke 21.

[0038] In this embodiment, the spoke 21 adopts a hollow structure and has a built-in spring telescopic rod 25, which completes the compression and elastic extension reset.

[0039] Of course, in order to improve the stability of the spoke 21, such as Figure 1 As shown, a spoke frame 22 is provided on multiple spokes 21 on the same side. The spoke frame 22 is fixed to the fixed part of the spokes 21, and the spoke frame 22 fixes the multiple spokes 21 around the wheel 2 at equal intervals.

[0040] In this embodiment, the spoke frame 22 is composed of multiple connecting plates connected together, and each connecting plate is fixed between two adjacent spokes 21, thereby effectively increasing the stability of the spokes 21 under stress during operation in the rotation direction.

[0041] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A harvesting device for an agricultural harvester, characterized in that, include: Reel shaft (1); The wheel (2) is provided at both ends of the reel axle (1), and the wheel (2) is provided with multiple spokes (21) in the circumferential direction. The reel (3) is provided at the outward end of each of the spokes (21), and the reel (3) is provided with a plurality of spring teeth (31), one end of the spring teeth (31) being configured to extend in the direction of rotation of the reel shaft (1); The spoke (21) is divided into a fixed part and a telescopic part. The wheel (2) is connected to the fixed part of the spoke (21). The hoe (3) is disposed at the outer end of the telescopic part of the spoke (21). The telescopic part of the spoke (21) is configured to be able to extend and retract radially along the wheel (2).

2. The harvesting device for an agricultural harvester according to claim 1, characterized in that, Wheel rims (4) are provided on the fixing parts of multiple spokes (21) on the same side. Two wheel rims (4) are configured to rotate around the reel shaft (1). Multiple levers (41) are provided between the two wheel rims (4). The multiple levers (41) correspond one-to-one with the multiple reeling rods (3). A plurality of guide holes (42) are provided on the lever (41), and the other end of the spring tooth (31) extends inward and is inserted into the guide hole (42), and the other end of the spring tooth (31) is configured to slide within the guide hole (42); The spring tooth (31) is configured to be wound around the reel (3) and be able to rotate around the reel (3). When the two rims (4) rotate, the spring tooth (31) rotates on the reel (3).

3. The harvesting device for an agricultural harvester according to claim 2, characterized in that, Multiple sleeves (32) are provided on the stalk (3), and multiple spring teeth (31) are respectively wound around the multiple sleeves (32), and the sleeves (32) are configured to be able to rotate around the stalk (3).

4. The harvesting device for an agricultural harvester according to claim 3, characterized in that, Inside each of the rims (4), a spoke (44) is provided by a plurality of spokes (43), and the spoke (44) is rotatably mounted on the reel shaft (1); Two arc-shaped sliding openings (23) are provided on the wheel (2), and two semi-tooth screws (45) are provided on the spoke (44). The two semi-tooth screws (45) pass through the two arc-shaped sliding openings (23) respectively, and the smooth section of the semi-tooth screw (45) is configured to slide within the arc-shaped sliding openings (23). The threaded sections of the two semi-threaded screws (45) extend out of the arc-shaped slide (23) and are jointly mounted with a pressure plate (24). The pressure plate (24) is rotatably mounted on the end of the reel shaft (1), and the pressure plate (24) is configured to be locked onto the wheel disc (2) by the nut on the semi-threaded screw (45).

5. A harvesting device for an agricultural harvester according to any one of claims 1-4, characterized in that, The spoke (21) is a hollow structure. A spring telescopic rod (25) is provided inside the spoke (21). The telescopic part of the spring telescopic rod (25) is fixed to the telescopic part of the spoke (21), and the fixed part of the spring telescopic rod (25) is fixed to the fixed part of the spoke (21).

6. The harvesting device for an agricultural harvester according to claim 1, characterized in that, A spoke frame (22) is provided on a plurality of spokes (21) on the same side. The spoke frame (22) is fixed to the fixed part of the spoke (21), and the spoke frame (22) fixes the plurality of spokes (21) around the wheel (2) at equal intervals.

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