Reel tooth, reel mechanism and crop harvesting device

Abstract

The utility model discloses a reel tooth. The reel tooth comprises a reel tooth body, a shifting tooth part and a hinging part are arranged on the shifting tooth body, and a supporting part is also arranged on the shifting tooth body close to the hinging part. On the other hand, the utility model further provides a seedling pulling mechanism which comprises a driving chain wheel which is in transmission connection with a driven chain wheel through a chain. A plurality of hinge seats are fixedly arranged on the peripheral side of the chain, and a hinge shaft is arranged on one side of each hinge seat; at least one end of the hinge shaft is hinged with the hinge part; a supporting rail is fixedly arranged on at least one side of the chain, and the supporting part is in friction connection with the supporting rail. On the other hand, the utility model provides a crop harvesting device which comprises a header provided with a cutter. At least one group of seedling pulling devices which are arranged in the same direction as the header are arranged above the header, a plurality of seedling pulling mechanisms which are arranged at intervals up and down in the height direction are arranged in the seedling pulling devices, and the plurality of seedling pulling mechanisms are in synchronous transmission in the same direction.

Description

Technical Field

[0001] The utility model belongs to the technical field of crop reaping devices, and particularly relates to a reel tooth, a reel mechanism, and a crop harvesting device with the reel mechanism. Background Art

[0002] When harvesting crops, the traditional cutting table uses a swing mechanism to achieve the centralized gathering of crops. Generally speaking, it is to use two swing arms to gather the crops in front of the vehicle to the middle or one side and then convey them again through other mechanisms, such as the technical solution disclosed in the utility model patent with the publication number CN216905966. Although this structure can be applied normally, there are still many drawbacks that need to be improved.

[0003] Firstly, the swing mechanism occupies a large space, and the swing amplitude and radius are also large. Correspondingly, the swing speed cannot be too fast, otherwise greater centrifugal force will be generated, causing equipment damage. Therefore, the time required to complete a single stroke is longer, resulting in difficulty in significantly improving work efficiency and limited operation speed. In order to increase the harvesting efficiency, the size of the swing mechanism is increased to increase the operation radius, but this will still increase the swing amplitude of the swing mechanism, and the related power device and other transmission components need to be greatly modified, with extremely high costs.

[0004] Secondly, there are also reel chains used to achieve the centralized gathering of crops. However, this type of reel chain is mostly used for harvesting crops such as corn, and the harvesting method is to harvest row by row in the forward direction, that is, the cutting table is arranged on both sides of each row of corn to collect corn cobs. The reel teeth used in this type of reel chain are of a fixed structure (i.e., directly fixed on the chain), and the size is small, which is specifically designed for corn. Reference can be made to the utility model patents with the publication numbers CN220191508U, CN220441355U, CN217905218U, and CN216752801U, and it cannot be used for harvesting tall and thin crops such as reeds.

[0005] In addition, due to the influence of the structure of the fixed-type reel teeth, in order not to cause entanglement and clamping with reeds at the chain turning point, the side for pushing the reeds for conveying is mostly arranged in a vertical or horizontal correspondence with the chain or inclined in the opposite direction of the chain conveying direction, so as not to cause reeds to be entangled and clamped at the chain turning point. However, this structure is prone to unhooking when conveying reeds, and cannot steadily push and convey the reeds, resulting in incomplete collection and gathering. It is common for reeds to be scattered all over the place. Moreover, it cannot be stored, occupying more space, bringing inconvenience to the already narrow cutting table space and requiring more structural modifications.

[0006] Therefore, it is necessary to design a new type of reaping device to bring more convenience to crop harvesting and improve work efficiency. Summary of the Utility Model

[0007] The object of the present utility model is to solve the above-mentioned technical problems existing in the prior art, and provide a reel tooth, a reel mechanism and a crop harvesting device, which are particularly suitable for harvesting relatively thin and tall crops such as reeds, and improve the operation efficiency by means of horizontal harvesting. At the same time, the function of storing the reel teeth can be realized, the space occupation is reduced as much as possible, and the accidental collision and obstruction between components are also prevented.

[0008] On the one hand, the present utility model provides a reel tooth, including a tooth body.

[0009] A tooth portion extending towards the crop direction is provided on the tooth body, an articulated portion for articulation is provided at one end of the tooth body away from the tooth portion, and a support portion arranged in the reverse direction of the chain traveling direction is also provided on the tooth body near the articulated portion.

[0010] Optionally, the tooth portion is inclined towards the chain traveling direction.

[0011] Optionally, a support plate perpendicular to its surface is fixedly provided on one side of the support portion away from the chain direction.

[0012] Optionally, one end and / or the other end of the support plate towards the chain traveling direction are in an arc chamfer structure.

[0013] On the other hand, the present utility model provides a reel mechanism, which includes a driven sprocket, and a driving sprocket drivingly connected with a driving component, and the driving sprocket is drivingly connected with the driven sprocket through a chain;

[0014] A plurality of evenly spaced articulated seats are fixedly provided on the outer peripheral side of the chain, and an articulated shaft arranged along the width direction of the chain is provided on the side of the articulated seat away from the chain;

[0015] At least one end of the articulated shaft is articulated with the articulated portion in the above-mentioned reel tooth, and the above-mentioned reel tooth rotates towards the chain direction or away from the chain direction with the articulated shaft as the center;

[0016] At least one side of the chain near the crop direction is fixedly provided with a support track arranged in the same direction as it, and the support portion or the support plate in the above-mentioned reel tooth is in frictional connection with the support track.

[0017] Optionally, both ends of the articulated shaft are respectively articulated with the articulated portion in one of the above-mentioned reel teeth, and the two reel teeth are arranged in a mirror image.

[0018] Optionally, the two reel teeth are fixedly connected to each other through a connecting member.

[0019] Optionally, at least one end of the support track is further provided with a guiding pulley.

[0020] On the other hand, the present utility model provides a crop harvesting device, which includes a cutter bar provided with a cutting knife;

[0021] Above the cutter bar, at least one set of reel devices arranged in the same direction as the cutter bar is provided, and a plurality of the above-mentioned reel mechanisms arranged at intervals in the height direction are provided in the reel device, and the plurality of reel mechanisms are synchronously driven in the same direction.

[0022] Optionally, two sets of reel devices arranged in the same direction as the cutter bar are provided above the cutter bar, and the two sets of reel devices are arranged at a mirror interval with the transfer area in the middle of the cutter bar as the center;

[0023] A plurality of the above-mentioned reel mechanisms arranged at intervals in the height direction are provided in each set of reel devices, and the reel mechanisms in the two sets of reel devices are synchronously driven in the opposite direction to each other.

[0024] Optionally, a blocking member close to the outer peripheral side of the chain is provided on the cutter bar, and the blocking member is located on the side of the chain away from the crop.

[0025] After adopting the above structure, the present utility model has the following beneficial effects:

[0026] First of all, compared with the traditional fixed reel teeth, the improved reel teeth have a hinged function. That is to say, the reel teeth can rotate on the chain. When reeling the crop, the tooth part of the reel is pushed by the supporting force of the support track. When returning, the tooth part of the reel loses the supporting force of the support track and rotates, and is received as the chain rotates, which can reduce the space occupation and prevent the collision and obstruction between components.

[0027] Secondly, the reel mechanism can be arranged in the same direction as the cutter bar, and is longitudinally and horizontally corresponding to the vehicle forward direction, and can harvest row by row. The longer the chain in the reel mechanism, the longer the length of each row of reeds harvested, the greater the harvesting amount, and the higher the working efficiency. Moreover, this reel mechanism can not only be arranged horizontally to realize the horizontal conveying of crops (such as reeds), but also be arranged vertically to realize the heightwise conveying of goods (such as rods, sticks and other items).

[0028] The crop harvesting device adopting the reel mechanism can not only realize row-by-row harvesting, but also realize the differential interval of the reel mechanism in height to adapt to crops of different heights. Finally, the crops are horizontally conveyed in a vertical posture, and the crops will not fall or tilt during this process, and the harvesting and transfer are more regular, which is also convenient for subsequent collection and packing of the crops. Description of the Drawings

[0029] Figure 1 It is a schematic perspective view of the reel tooth in the present utility model;

[0030] Figure 2 It is a schematic front view of the reel tooth in the present utility model;

[0031] Figure 3 It is a schematic left view of the reel tooth in the present utility model;

[0032] Figure 4 It is a schematic top view of the reel tooth in the present utility model;

[0033] Figure 5 It is a schematic perspective view of the chain in the present utility model;

[0034] Figure 6 It is a partially enlarged schematic top view of the reel mechanism in the present utility model;

[0035] Figure 7 is Figure 6 an enlarged schematic view of the structure at position A in;

[0036] Figure 8 It is a partially schematic perspective view of the installation state of the reel tooth in the present utility model;

[0037] Figure 9 is a partially enlarged schematic perspective view of the reel mechanism in the present utility model Figure One ;

[0038] Figure 10 is a partially enlarged schematic perspective view of the reel mechanism in the present utility model Figure Two ;

[0039] Figure 11 is Figure 10 an enlarged schematic view of the structure at position B in;

[0040] Figure 12 It is a schematic perspective view of the crop harvesting device in the present utility model Figure One ;

[0041] Figure 13 It is a schematic perspective view of the crop harvesting device in the present utility model Figure Two .

[0042] In the figure:

[0043] 100 - Reel tooth body 101 - Reel tooth part 102 - Support part 103 - Hinge part 104 - Support plate 105 - Connecting piece;

[0044] 200 - Chain 201 - Hinge seat 202 - Hinge shaft 203 - Support track 204 - Guide pulley 205 - Sprocket shaft;

[0045] 300 - Header 301 - Reel device 302 - Transfer area 303 - Blocking component;

[0046] 4 - Crop. Detailed implementation mode

[0047] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the following combines Figures 1 to 13 with embodiments to further elaborate on the present utility model in detail. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0048] Embodiment 1

[0049] Referring to Figures 1 to 4 , this embodiment provides a reel tooth, which has a rotatable function compared with the traditional fixed - structure reel tooth and can rotate at a certain angle on the chain. When approaching the crop, it can embrace the crop and apply a force to push the crop to move laterally; when moving away from the crop, it can achieve a retractable posture, lose the pushing force, and minimize the occupation of space as much as possible.

[0050] Specifically, it includes a reel - tooth body 100, the overall shape of which is L - shaped and can be formed by pressing a metal plate; a reel - tooth part 101 extending towards the crop 4 (taking reeds as an example) is provided on the reel - tooth body 100, which is used to embrace the reeds and push the reed branches to move laterally. An articulation part 103 for articulation is provided at one end of the reel - tooth body 100 far from the reel - tooth part 101. In practice, this articulation part can be set as an articulation hole. A support part 102 arranged in the opposite direction to the traveling direction of the chain 200 is also provided on the reel - tooth body 100 near the articulation part 103 (i.e., the articulation hole). This support part 102 and the reel - tooth body 100 together form an L - shaped structure.

[0051] The reason for arranging it in the opposite direction to the traveling direction of the chain 200 is to achieve a good supporting effect on the reel - tooth body 100, that is, when the reel - tooth body 100 pushes the reed branches forward, it can strongly support the reel - tooth body 100 from the rear to prevent the reel - tooth body 100 from skewing.

[0052] If the hinged method (i.e. the conventional fixing method) is not adopted, it is easy to clamp the reed branches, and other conveying components will get entangled and clamped when taking out the reeds. Specifically, the reeds are diverted and output from the transfer area at the center or one side of the cutting table by other conveying components, and this transfer area corresponds to the end of the chain, and there is an overlapping area between the two. If the reed-pulling teeth have no hinge function, they cannot be deformed at the turning point, and the reeds are still in a state of being embraced. In this way, it is difficult for other conveying components to completely output the reeds, resulting in some reed branches being entangled and clamped by the two.

[0053] After adopting the present structure, the reed-pulling teeth can realize the function of rotation, that is, after losing the support of the support rail, they can rotate around the hinge axis as the center of the circle and lose the force. The reeds in the transfer area are not restricted by their embrace, and other conveying components can easily send the reeds out without entanglement and clamping. The operators can work uninterruptedly. At present, the reeds are entangled in the transfer area in a very short time, and the operators need to stop the car and manually clean the entanglement, which is very inconvenient and seriously affects the work efficiency.

[0054] As a further improvement of this embodiment, the shifting tooth portion 101 is inclined toward the traveling direction of the chain 200 .

[0055] The reason for setting up this structure is that it can achieve a better effect of holding the reed branches. During the transportation process, the reed branches can be firmly confined within the range of movement of the tooth part 101 and will not be separated from it due to the action of inertia.

[0056] There are two types of traditional teeth. One is a structure that corresponds to the chain in the vertical and horizontal directions, that is, the teeth are rectangular, and the two long sides are parallel to each other and consistent with the direction of vehicle travel. The other is a structure that is inclined in the opposite direction of the chain's travel, or a structure that is thin at the end and thick at the root. Both structures are very common, and their purpose is to prevent the reeds from getting entangled and clamped in the transfer area.

[0057] Although the entanglement and clamping are limited, these two structures cannot play a good role in grasping the reed branches. That is, as the chain moves quickly, the reeds can easily be thrown out from the end of the pull teeth under the action of inertia, and the pull teeth cannot play a grasping role. The thrown reed branches are crushed by the vehicle and are more likely to be entangled in the wheels or tracks. Therefore, these two structures must be coordinated with other limiting mechanisms to ensure a firm fit with the pull teeth, which increases the complexity of the structure and the cost of modification.

[0058] As a further improvement of this embodiment, a support plate 104 perpendicular to the surface thereof is fixedly provided on one side of the support portion 102 away from the chain 200. With this structure, it can fit with other limiting components (i.e., the support rail 203). Of course, only relying on the support portion 102 can also fit with the support rail 203, but the unit contact area is small and the force is large, so it is prone to bending deformation. By using the support plate 104, a better supporting effect can be achieved.

[0059] As a further improvement of this embodiment, one end and / or the other end of the support plate 104 facing the traveling direction of the chain 200 is / are in an arc chamfer structure. During actual use, both ends of the support plate 104 are in an arc chamfer structure. In this way, when contacting other components, it can play a certain smooth contact transition effect and prevent hard contact.

[0060] Embodiment Two

[0061] The same parts as those in Embodiment One in this embodiment will not be described in detail.

[0062] Refer to Figures 5 to 11 , this embodiment provides a reel mechanism, which includes a driven sprocket and a driving sprocket drivingly connected to a driving component, and the driving sprocket is drivingly connected to the driven sprocket through a chain 200;

[0063] A plurality of evenly spaced hinge seats 201 are fixedly provided on the outer peripheral side of the chain 200, and a hinge shaft 202 arranged along the width direction of the chain 200 is provided on one side of the hinge seat 201 away from the chain 200; at least one end (both ends in practice) of the hinge shaft 202 is hinged to the hinge portion 103 (i.e., the hinge hole) of the above-mentioned reel teeth, so as to realize the rotation function of the reel teeth. That is, the reel teeth rotate around the hinge shaft 202 towards or away from the chain 200.

[0064] At least one side of the chain 200 close to the crop 4 is fixedly provided with a support rail 203 arranged in the same direction as it, and the support portion 102 or the support plate 104 of the above-mentioned reel teeth is in frictional connection with the support rail 203. When the side of the support portion 102 away from the tooth portion 101 or the surface of the support plate 104 away from the tooth portion 101 is supported by the support rail 203, the tooth portion 101 can push the reed branches. The support rail 203 is arranged above and / or below the chain (refer to the direction shown in the figure).

[0065] In practice, both ends of the hinge shaft 202 are respectively hinged to the hinge parts 103 in one of the above-mentioned reel teeth, that is, both ends of the hinge shaft 202 are respectively hinged to a reel tooth, and the two reel teeth are arranged in a mirror image. This structure can achieve the effect of two-point support for the reed branches, with a better pushing effect, and the reed branches are not easily broken. In addition, the two reel teeth are fixedly connected to each other through a connecting member 105, so as to better ensure that the two reel teeth move synchronously.

[0066] As a further improvement of this embodiment, at least one end of the support rail 203 is also provided with a guide pulley 204. When the support part 102 or the support plate 104 touches it, the tooth picking part 101 can be gradually opened (also called bulged), which is convenient for smoothly holding the reed branches. Its sliding effect can reduce friction and prevent excessive wear.

[0067] It should be noted in this embodiment that the chain 200 shown in the figure is in the horizontal transmission direction. In practice, the chain 200 can be set to be transmitted in the height direction, so that the transmission of items in the height direction can be realized, rather than simply being transmitted in the horizontal direction.

[0068] Embodiment Three

[0069] The same parts as those in Embodiment Two in this embodiment will not be described in detail.

[0070] Refer to Figure 12 and Figure 13 This embodiment provides a crop harvesting device, which includes a cutting table 300 provided with a cutter (not shown in the figure). The cutter faces the vehicle driving direction and cuts the reeds in front during driving.

[0071] Above the cutting table 300, at least one set of reel devices 301 arranged in the same direction as it (usually two sets are arranged in practice) is provided. The two can be fixedly connected to each other through a bracket. The reel device 301 is provided with a plurality of the above-mentioned reel mechanisms arranged at intervals up and down in the height direction. That is to say, a plurality of reel mechanisms are arranged at intervals corresponding to each other up and down in the height direction, and a plurality of the reel mechanisms are driven synchronously and in the same direction.

[0072] When the reeds are cut by the cutter, they can be conveyed in the same direction by the reel mechanism. During this cutting and harvesting process, the reeds always maintain a vertical posture and will not tilt or fall. In this way, the reed branches can be conveyed orderly, which brings convenience to subsequent collection, storage, packaging and other links. The traditional method is that the reeds fall directly to the ground on one side after being cut, and subsequent picking and collection are very inconvenient.

[0073] In another structure of this embodiment, two sets of reel devices 301 arranged in the same direction as the header 300 are provided above the header 300, and the two sets of reel devices 301 are arranged at a mirror image interval with the transfer area 302 in the middle of the header 300 as the center; that is to say, the two sets of reel devices are in a mirror image structure that is left-right symmetric, and can harvest reeds row by row, rather than column by column.

[0074] Moreover, several of the above-mentioned reel mechanisms arranged at intervals in the height direction are provided in each set of reel devices 301, and the reel mechanisms in the two sets of reel devices 301 are driven by a driving component to be synchronously driven in opposite directions. That is to say, the left reel device and the right reel device are arranged in opposite directions in the transmission direction, and can gather the reed branches on both sides towards the middle position, and finally turn and output from the transfer area 302.

[0075] The reason for arranging several reel mechanisms in the height direction is that the height of reeds is generally relatively high. During harvesting, in order to prevent the reeds from falling, it is necessary to ensure that the reeds are collected and gathered in a vertical posture so as to be orderly transported backward.

[0076] Optionally, a blocking component 303 close to the outer peripheral side of the chain 200 is provided on the header 300, and the blocking component 303 is located on the side of the chain 200 away from the crop 4. When the tooth portion 101 touches it, the function of receiving can be realized.

[0077] After adopting the above structure, the utility model has the following beneficial effects:

[0078] First of all, the improved reel teeth have a hinged function compared with the traditional fixed reel teeth. That is to say, the reel teeth can rotate on the chain. When the crop is being pushed, the tooth portion is pushed by the supporting force of the supporting track. When returning, the tooth portion loses the supporting force of the supporting track and rotates, and is received along with the rotation of the chain, which can reduce the space occupation and prevent collision and obstruction between components.

[0079] Secondly, the reel mechanism can be arranged in the same direction as the header, and is longitudinally and horizontally corresponding to the vehicle forward direction, and can harvest row by row. The longer the chain in the reel mechanism, the longer the length of each row of reeds harvested, the greater the harvesting amount, and the higher the working efficiency. Moreover, this reel mechanism can not only be arranged horizontally to realize the horizontal transportation of crops (such as reeds), but also be arranged vertically to realize the height-direction transportation of crops (such as rods, sticks and other items).

[0080] The crop harvesting device with a reel mechanism can not only achieve row-by-row harvesting, but also achieve a differential interval of the reel mechanism in height to adapt to crops of different heights. Finally, the crops can be horizontally conveyed in a vertical posture, and the crops will not fall or tilt during this process, making the harvesting and transportation more regular and facilitating the subsequent collection and packing of the crops.

[0081] Working principle:

[0082] Here, taking the example of setting two reel devices on the cutter bar for illustration.

[0083] Taking the harvesting of reeds as an example for the present utility model, during harvesting, the cutter bar is in a vertical and horizontal correspondence with the traveling direction, that is, the cutter bar faces the reeds in a horizontal state to achieve row-by-row harvesting, rather than column-by-column harvesting. A cutter (not shown in the figure) is provided on one side of the cutter bar facing the forward direction, which can cut off the crops from the roots. Two reel devices that are mirror-symmetrical in the horizontal direction are provided on the cutter bar. Since reeds are thin and tall, the reel mechanism in the reel device needs to be set with corresponding layers according to the height of the reeds to ensure that the reeds will not tilt when cut by the cutter bar and can be gathered and collected by the reel teeth towards the middle part in a nearly vertical posture.

[0084] If the number of layers set for the reel mechanism is small and not coordinated with the height of the reeds, it is easy to cause the reeds to tilt in an indefinite direction without support when being cut, resulting in the situation that they cannot be gathered and collected and are scattered all over the place, which is difficult to collect in soft and slippery swamps, with low efficiency and poor effect.

[0085] During harvesting, the tooth part of the reel is in a state of protruding towards the reeds, which is beneficial for embracing the reed branches from the side. When the tooth part of the reel runs to the side far from the reeds, it will be received towards the chain direction with the hinge axis as the center under the blocking of the blocking part. Of course, no support track is set on this side of the chain. At this time, the support part 102 or the support plate 104 will not have a supporting force without being supported and will easily rotate and be received under the blocking of external forces.

[0086] When continuing to run to the other end of the chain and preparing to turn back, blocked by the sprocket shaft or other components, the support part 102 or the support plate 104 is blocked and forced to swing with the hinge axis 202 as the center. That is, the tooth part 101 of the reel protrudes outwards again. As it continues to run, the support part 102 or the support plate 104 will touch the guide pulley 204 and further rotate to a state close to being flush with the chain. Finally, the support part 102 or the support plate 104 will frictionally fit with the support track 203, and the tooth part 101 of the reel will maintain a protruding posture under the frictional support of the two of them to apply an embracing supporting force to the reed branches.

[0087] Of course, when the diameter of the sprocket is relatively large, other components can also be set at this position to achieve the purpose of blocking. When the support part 102 or the support plate 104 runs here, it can also achieve a certain rotation by touching other components, and it is not necessarily to touch the sprocket shaft.

[0088] In addition, a set of reel devices can also be provided on the cutter bar.

[0089] In this way, the reeds will be conveyed in one direction and finally dumped on one side of the vehicle, or conveyed to the hopper through other conveying components on one side of the vehicle.

[0090] The utility model can improve the working efficiency by increasing the length of the chain and the number of layers in the height direction. The longer the chain, the longer the length of the reeds harvested in each row, and the more the amount of reeds harvested in a single trip of the vehicle. The number of the reel mechanisms can be adjusted, which can adapt to reeds of different heights. In addition, by using the reel mechanisms to achieve gathering and collection, compared with the traditional swing structure, the structure is more compact, the transmission is more powerful and stable, and the working efficiency is doubled.

[0091] In addition, the structure of the reel mechanism is simpler and is a unitary repeated setting, and the production cost and the maintenance cost are very low, which increases the economic benefits of the operators.

[0092] Taking the existing corn harvester as an example, its cutter bar is placed on both sides of each row of corn cages for harvesting corn cobs. That is to say, during harvesting, it is carried out row by row in the forward direction. Therefore, the cutter bars on both sides of each row of corn cages are mostly vertically arranged in the forward direction. For details, reference can be made to the utility model patent with the publication number of CN220191508U.

[0093] However, when harvesting reeds, it is completely different. Since there are no available fruits on the reeds and the harvested reeds are mostly directly baled and transported, during harvesting, it is carried out row by row in the forward direction. That is to say, the cutter bar is horizontally arranged in the forward direction. The larger the span of the row, the greater the amount of harvested reeds and the higher the efficiency. Although the utility model has been described above with reference to the embodiments, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the utility model. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the utility model can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A plowing tooth, comprising a plowing tooth body (100); Its characteristics are: The tooth shifting body (100) is provided with a tooth shifting portion (101) extending in the direction of the crop (4); an articulated portion (103) for articulation is provided at one end of the tooth shifting body (100) away from the tooth shifting portion (101); and a support portion (102) arranged in the opposite direction to the travel direction of the chain (200) is also provided on the tooth shifting body (100) near the articulated portion (103).

2. The reed-pulling tooth according to claim 1, characterized in that: The shifting tooth portion (101) is inclined toward the traveling direction of the chain (200).

3. The reed-pulling tooth according to claim 1, characterized in that: A support plate (104) is fixedly provided on one side of the support portion (102) away from the chain (200) and perpendicular to the surface of the support portion (102).

4. The reed-pulling tooth according to claim 3, characterized in that: The end of the support plate (104) facing the direction of travel of the chain (200) and / or the end away from the direction of travel of the chain (200) are in an arc-shaped rounded corner structure.

5. A reel-pulling mechanism, comprising a passive sprocket and a driving sprocket which is in transmission connection with a driving component, wherein the driving sprocket is in transmission connection with the passive sprocket via a chain (200); Its characteristics are: A plurality of evenly spaced hinge seats (201) are fixedly provided on the outer peripheral side of the chain (200); a hinge shaft (202) arranged along the width direction of the chain (200) is provided on a side of the hinge seat (201) away from the chain (200); At least one end of the hinge shaft (202) is hinged to the hinge portion (103) in the plowing tooth according to any one of claims 1 to 4, and the plowing tooth rotates toward the chain (200) or away from the chain (200) with the hinge shaft (202) as the center of the circle; At least one side of the chain (200) close to the crop (4) is fixedly provided with a support track (203) arranged in the same direction as the crop, and the support portion (102) or the support plate (104) in the reed tooth is frictionally connected to the support track (203).

6. The reel-pulling mechanism according to claim 5, characterized in that: Both ends of the hinge shaft (202) are hinged to the hinge portion (103) in one of the reed-pulling teeth, and the two reed-pulling teeth are arranged in a mirror image.

7. The reel-pulling mechanism according to claim 6, characterized in that: The two reed teeth are fixedly connected to each other via a connecting piece (105).

8. The reel-pulling mechanism according to claim 5, characterized in that: At least one end of the support track (203) is also provided with a guide pulley (204).

9. A crop harvesting device, comprising a cutting table (300) provided with a cutting knife; Its characteristics are: At least one group of reed-pulling devices (301) arranged in the same direction as the cutting platform (300) is provided above the cutting platform (300), and the reed-pulling device (301) is provided with a plurality of reed-pulling mechanisms according to any one of claims 5 to 8 arranged in an up-and-down manner in a height direction, and the plurality of reed-pulling mechanisms are synchronously driven in the same direction.

10. The crop harvesting device according to claim 9, characterized in that: Two groups of reed-moving devices (301) are arranged in the same direction above the cutting platform (300), and the two groups of reed-moving devices (301) are arranged in a mirror-image manner with a transfer area (302) in the middle of the cutting platform (300) as the center; Each group of the reed-pushing devices (301) is provided with a plurality of reed-pushing mechanisms which are arranged at intervals in the height direction, and the reed-pushing mechanisms in two groups of the reed-pushing devices (301) are synchronously and reversely driven with each other.

11. The crop harvesting device according to claim 9, characterized in that: The cutting platform (300) is provided with a blocking component (303) close to the outer peripheral side of the chain (200), and the blocking component (303) is located on a side of the chain (200) away from the crop (4).

Images