Excavating and conveying device for harvester

Abstract

An embodiment of the present application provides an excavation and conveying device for a harvester, which includes: a primary conveying mechanism, a secondary conveying mechanism, and a gathering mechanism; the primary conveying mechanism is used to convey crops along a first direction; the secondary conveying mechanism is used to receive the crops conveyed by the primary conveying mechanism, and is arranged in series with the primary conveying mechanism along the first direction, and the input end of the secondary conveying mechanism is detachably connected to the output end of the primary conveying mechanism; the gathering mechanism includes a conveying channel, and the conveying channel is used to gather the crops conveyed on the primary conveying mechanism, and the size of the conveying channel in the second direction gradually decreases in the direction from the gathering mechanism to the secondary conveying mechanism. The present application realizes that when harvesting plots with different ridge or row spacings, only the primary conveying mechanism needs to be replaced, so that only primary conveying mechanisms with different working widths need to be equipped to achieve harvesting of root crops with different ridge or row spacings.

Description

Technical Field

[0001] The present application relates to the technical field of crop harvesting, and in particular to an excavating and conveying device for a harvester. Background Art

[0002] In the related art, the digging and conveying device is arranged at the front end of the harvester, and the working width of the digging and conveying device is fixed. However, the ridge spacing or row spacing of root crops is relatively large. In order to adapt to the harvesting of different ridge spacing or row spacing, users need to purchase harvesters with different working widths to make the size of the digging and conveying device in the second direction match the ridge spacing or row spacing to avoid missed harvests and increase the crop loss rate. Therefore, the harvester in the related art cannot adapt to a variety of different sizes of ridge spacing or row spacing with one device, and the configuration cost of the user's harvesting equipment is relatively high. Summary of the Invention

[0003] An embodiment of the present application provides an excavating and conveying device for a harvester to solve or alleviate one or more technical problems in the prior art.

[0004] As one aspect of an embodiment of the present application, an embodiment of the present application provides an excavation and conveying device for a harvester, comprising:

[0005] a primary conveying mechanism for conveying crops in a first direction;

[0006] a secondary conveying mechanism, for receiving the crops conveyed by the primary conveying mechanism, and arranged in series with the primary conveying mechanism along the first direction, wherein an input end of the secondary conveying mechanism is detachably connected to an output end of the primary conveying mechanism;

[0007] a gathering mechanism disposed on the primary conveying mechanism, the gathering mechanism including a conveying channel for gathering the crops conveyed by the primary conveying mechanism, wherein the dimension of the conveying channel in the second direction gradually decreases in the direction from the gathering mechanism to the secondary conveying mechanism;

[0008] The first direction intersects with the second direction, and the operating width of the primary conveying mechanism in the second direction is greater than the operating width of the secondary conveying mechanism in the second direction.

[0009] In some embodiments, the primary conveying mechanism includes a first bracket, a first conveying system and a first connecting seat; the secondary conveying mechanism includes a second bracket, a second conveying system and a second connecting seat; the first conveying system is arranged on the first bracket, and the first connecting seat is arranged at one end of the first bracket facing the secondary conveying mechanism; the second conveying system is arranged on the second bracket, and the second connecting seat is arranged at one end of the second bracket facing the primary conveying mechanism; the first connecting seat and the second connecting seat are detachably connected.

[0010] In some embodiments, a first connecting hole is provided on the first connecting seat, a second connecting hole is provided on the second connecting seat, and the first connecting hole and the second connecting hole are connected by a connecting member.

[0011] In some embodiments, the gathering mechanism includes a first baffle and a second baffle, which are arranged on the primary conveying mechanism at intervals along the second direction, and a conveying channel is defined between the first baffle and the second baffle; in the first direction, the size of the conveying channel in the second direction gradually becomes smaller.

[0012] In some embodiments, a portion of the first baffle and a portion of the second baffle respectively extend above the second conveying system.

[0013] In some embodiments, the first conveying system includes a plurality of conveying rollers, and the plurality of conveying rollers are spaced apart along the first direction.

[0014] In some embodiments, the first conveyor system includes a conveyor belt or a chain rake.

[0015] In some embodiments, a first gap is defined between two adjacent conveying rollers; the bottom of the first baffle is provided with a plurality of first protrusions adapted to the first gap, the first protrusions are embedded in the first gap, and the two adjacent first protrusions and the first baffle are combined to form a first groove adapted to the conveying roller, and / or, the bottom of the second baffle is provided with a plurality of second protrusions adapted to the first gap, the second protrusions are embedded in the first gap, and the two adjacent second protrusions and the second baffle are combined to form a second groove adapted to the conveying roller.

[0016] In some embodiments, the excavation and conveying device further includes an excavation mechanism, which is used to excavate and collect crops in the land and convey them to the primary conveying mechanism.

[0017] In some embodiments, the excavation mechanism includes a first drive mechanism, a base body, an eccentric bearing, a connecting rod and a shovel blade. The shovel blade is arranged on the base body. The base body is hinged to the first bracket through a hinge block. The inner ring of the eccentric bearing is rotatably arranged on the first bracket through a first rotating shaft. The first drive mechanism is transmission-connected to the first rotating shaft. One end of the connecting rod is connected to the outer ring of the eccentric bearing, and the other end of the connecting rod is rotationally connected to the base body through a second rotating shaft.

[0018] In some embodiments, it further includes a ground wheel assembly, which is connected to the first bracket. The ground wheel assembly and the secondary conveying mechanism are arranged at both ends of the primary conveying mechanism along the first direction.

[0019] In some embodiments, the ground wheel assembly includes at least one ground wheel mechanism, which includes a connecting frame, a driving wheel, a sliding rod, a guide tube and a hydraulic cylinder. The connecting frame is connected to the first bracket, the guide tube is connected to the connecting frame, at least part of the sliding rod is slid in the guide tube, the driving wheel is arranged at the bottom of the sliding rod, the cylinder body of the hydraulic cylinder is connected to the guide tube, and the piston rod of the hydraulic cylinder is connected to the sliding rod.

[0020] In some embodiments, the second conveying system includes a third drive mechanism, a first chain, a second chain and multiple chain rake rods. The third drive mechanism is connected to the first chain in a transmission manner, one end of the chain rake rod is connected to the first chain, and the other end of the chain rake rod is connected to the second chain.

[0021] In some embodiments, the second conveying system further includes a rubber sleeve vulcanized on the chain rake rod, the rubber sleeve including a plurality of rubber protrusions, and an extending direction of the rubber protrusions intersects with an extending direction of the chain rake rod.

[0022] In some embodiments, a soil breaking mechanism is further included, which is disposed on the second bracket and is used to break up the soil attached to the crops.

[0023] In some embodiments, the soil-breaking mechanism includes a fixed seat, an elastic member, a soil-pressing roller, a second driving mechanism, and a mounting plate. One end of the mounting plate is rotatably set on the second bracket through a third rotating shaft, and the soil-pressing roller is rotatably set at the other end of the mounting plate. The second driving mechanism is transmission-connected to the soil-pressing roller, and a second gap for crops to pass through is defined between the chain rake rod corresponding to the soil-pressing roller and the soil-pressing roller; the fixed seat is set on the second bracket, one end of the elastic member abuts against the fixed seat, and the other end of the elastic member abuts against the mounting plate.

[0024] In some embodiments, the soil-breaking mechanism further includes a screw and a nut, the nut is disposed on a fixing seat, the screw and the nut are threadedly connected, and the screw abuts against the mounting plate.

[0025] In some embodiments, the rotation direction of the compacting roller is opposite to the rotation direction of the second conveying system.

[0026] The embodiments of the present application have the following beneficial effects:

[0027] The present application sets the primary conveying mechanism and the secondary conveying mechanism in a detachable connection form, so that when encountering different sizes of ridge spacing or row spacing, it is only necessary to dismantle the original primary conveying mechanism and replace it with a primary conveying mechanism that is adapted to the ridge spacing or row spacing, without replacing the secondary conveying mechanism. On the one hand, the present application can completely collect crops by adapting the size of the primary conveying mechanism in the second direction to the ridge spacing or row spacing to avoid missing crops. On the other hand, the primary conveying mechanism and the secondary conveying mechanism can be detached to achieve harvesting operations on plots with different ridge spacing or row spacing by only replacing the primary conveying mechanism, so that only primary conveying mechanisms with different working widths are needed to achieve harvesting operations of root crops with different ridge spacing or row spacing. Compared with the previous need to equip a variety of harvesters of different sizes, this setting method of the present application reduces the harvesting cost of crops for farmers or contractors. Secondly, since the size of the secondary conveying mechanism of the present application in the second direction is smaller than the size of the primary conveying mechanism in the second direction, and the crops of the harvester are conveyed along the first direction, that is, from the primary conveying mechanism with a larger working width to the secondary conveying mechanism with a smaller working width, the crops are easily leaked out of the gap between the primary conveying mechanism and the secondary conveying mechanism in the second direction during the conveying process, causing the crops to fall from the primary conveying mechanism to the ground and thus cause damage to the crops. Therefore, the present application sets a gathering mechanism on the primary conveying mechanism, and the gathering mechanism has a conveying channel. The crops conveyed on the primary conveying mechanism fall into the secondary conveying mechanism after being gathered by the conveying channel, thereby avoiding the crops from leaking out of the gap between the primary conveying mechanism and the secondary conveying mechanism in the second direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0029] Figure 1 A schematic structural diagram of an excavating and conveying device for a harvester according to an embodiment of the present application is shown;

[0030] Figure 2 Show Figure 1 A is an enlarged schematic diagram;

[0031] Figure 3 A schematic structural diagram of a primary conveying mechanism and a ground wheel assembly according to an embodiment of the present application is shown;

[0032] Figure 4 Show Figure 3 A magnified schematic diagram of middle B;

[0033] Figure 5 A schematic structural diagram of a secondary conveying mechanism according to an embodiment of the present application is shown;

[0034] Figure 6 Show Figure 5 A magnified schematic diagram of middle C;

[0035] Figure 7 A schematic structural diagram of a primary conveying mechanism and a ground wheel assembly according to an embodiment of the present application is shown;

[0036] Figure 8 A schematic structural diagram of a primary conveying mechanism and a ground wheel assembly according to an embodiment of the present application is shown;

[0037] Figure 9 Show Figure 8 A magnified schematic diagram of D in the middle;

[0038] Figure 10 A schematic structural diagram of a primary conveying mechanism according to an embodiment of the present application is shown;

[0039] Figure 11 A schematic structural diagram of a chain rake rod according to an embodiment of the present application is shown.

[0040] Description of reference numerals:

[0041] 1. Excavation and conveying device for harvester;

[0042] 10. Primary conveying mechanism; 11. First bracket; 12. First conveying system; 121. Conveyor roller; 1211. First gap; 13. First connecting seat; 14. Excavating mechanism; 141. Articulated block; 142. Seat body; 143. Eccentric bearing; 144. Connecting rod; 145. Blade; 146. First rotating shaft; 147. First driving mechanism;

[0043] 20. Secondary conveying mechanism; 21. Second bracket; 22. Second conveying system; 221. Rubber protrusion; 223. Rubber sleeve; 224. Chain rake; 225. Second chain; 226. First chain; 23. Second connecting seat;

[0044] 30. Gathering mechanism; 31. Conveying channel; 32. First baffle; 321. First protrusion; 33. Second baffle; 331. Second protrusion;

[0045] 40. Ground wheel assembly; 41. Ground wheel mechanism; 411. Connecting frame; 412. Driving wheel; 413. Sliding rod; 414. Guide tube; 415. Hydraulic cylinder;

[0046] 50. Soil-breaking mechanism; 51. Fixed seat; 52. Elastic member; 53. Soil-pressing roller; 54. Mounting plate; 55. Second drive mechanism; 56. Third rotating shaft; 57. Screw; 58. Nut;

[0047] 60. Connectors;

[0048] X, first direction; Y, second direction. DETAILED DESCRIPTION

[0049] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0050] Figure 1 A schematic structural diagram of the excavating and conveying device 1 for a harvester according to an embodiment of the present application is shown. In some embodiments of the present application, see Figure 1 The present application proposes an excavating and conveying device 1 for a harvester, which can collect and convey crops during the harvesting of root crops. The excavating and conveying device 1 for a harvester includes: a primary conveying mechanism 10, a secondary conveying mechanism 20 and a gathering mechanism 30.

[0051] Among them, the excavating and conveying device 1 for the harvester mixes soil and various foreign materials when conveying crops.

[0052] Figure 2 Show Figure 1 The enlarged schematic diagram of A in the middle is shown in Figure 1 and Figure 2 The primary conveying mechanism 10 is used to convey crops along a first direction X, and the secondary conveying mechanism 20 is used to receive the crops conveyed by the primary conveying mechanism 10. The secondary conveying mechanism 20 is arranged continuously with the primary conveying mechanism 10 along the first direction X, so that the crops on the primary conveying mechanism 10 can be conveyed to the secondary conveying mechanism 20 along the first direction X. The input end of the secondary conveying mechanism 20 is detachably connected to the output end of the primary conveying mechanism 10, so that the primary conveying mechanism 10 can be detached from the secondary conveying mechanism 20.

[0053] See also Figure 1 、 Figure 2 as well as Figure 3 The gathering mechanism 30 is disposed on the primary conveying mechanism 10 and includes a conveying channel 31. The conveying channel 31 is used to gather the crops conveyed by the primary conveying mechanism 10. As the primary conveying mechanism 10 moves toward the secondary conveying mechanism 20, the dimension of the conveying channel 31 in the second direction Y gradually decreases, causing the dimensions of the multiple crops conveyed in the conveying channel 31 to gradually decrease in the second direction Y. The dimension of the multiple crops in the second direction Y refers to the distance between the two crops closest to each other within the conveying channel 31.

[0054] Exemplarily, multiple crops enter the conveying channel 31 from the input end of the gathering mechanism 30, and the size of the multiple crops in the second direction Y is D cm. Multiple crops exit the conveying channel 31 from the output end of the gathering mechanism 30, and the size of the multiple crops in the second direction Y is S cm, and D cm is greater than S cm.

[0055] Figure 3 A schematic diagram showing the structure of the primary conveying mechanism and the ground wheel assembly according to an embodiment of the present application is shown. In the embodiment of the present application, see Figure 1 、 Figure 2 as well as Figure 3 The direction in which the gathering mechanism 30 faces the secondary conveying mechanism 20 is the first direction X, enabling the conveying channel 31 to convey the crops along the first direction X and gather the crops. Furthermore, the dimension of the output end of the conveying channel 31 in the second direction Y is less than or equal to the dimension of the secondary conveying mechanism 20 in the second direction Y, ensuring that all crops gathered by the conveying channel 31 fall onto the secondary conveying mechanism 20.

[0056] The first direction X is the length direction of the excavating and conveying device 1 for the harvester, and the second direction Y is the width direction of the excavating and conveying device 1 for the harvester. The first direction X and the second direction Y intersect. The operating width of the primary conveying mechanism 10 in the second direction Y is greater than the operating width of the secondary conveying mechanism 20 in the second direction Y. The primary conveying mechanism 10 needs to meet the ridge spacing or row spacing, while the secondary conveying mechanism 20 only needs to meet the needs of crop transportation. In some embodiments, when the secondary conveying mechanism 20 is multi-stage, the operating width of each stage of the secondary conveying mechanism 20 in the second direction Y can be the same or different.

[0057] According to the digging and conveying device 1 for a harvester according to an embodiment of the present application, the digging and conveying device 1 for a harvester according to the present application will collect crops in the farmland during the harvesting operation. After collecting the crops, the digging and conveying device 1 for the harvester uses a primary conveying mechanism 10 to convey multiple crops. In order to avoid losses caused by missed harvests, the size of the primary conveying mechanism 10 in the related art in the second direction Y is adapted to the ridge spacing or row spacing. However, due to differences in the ridge spacing, row spacing of crops of different growers or the ridge spacing and row spacing in different places, the harvester in the related art cannot adapt to multiple different ridge spacing or row spacing with one device. For example, the ridge spacing of some types of root crops is 0.9 meters, and the ridge spacing of some types of root crops is 1.2 meters.

[0058] Based on this, the present application sets the primary conveying mechanism 10 and the secondary conveying mechanism 20 in a detachable connection form, so that when encountering ridge spacings of different sizes, it is only necessary to dismantle the original primary conveying mechanism 10 and replace it with a primary conveying mechanism 10 that is adapted to the ridge spacing, without replacing the secondary conveying mechanism 20. On the one hand, the present application can completely collect the crops in the farmland by adapting the size of the primary conveying mechanism 10 in the second direction Y to the ridge spacing. On the other hand, it can also realize the harvesting operation of plots with different ridge spacings by replacing the primary conveying mechanism 10 through the detachable manner of the primary conveying mechanism 10 and the secondary conveying mechanism 20, so that only the primary conveying mechanism 10 with different operating widths is needed to realize the harvesting operation of root crops at different ridge spacings. Compared with the previous need to equip a variety of harvesters of different sizes, this setting method of the present application reduces the harvesting cost of crops for farmers or contractors. Secondly, since the size of the secondary conveying mechanism 20 of the present application in the second direction Y is smaller than the size of the primary conveying mechanism 10 in the second direction Y, and the crops of the excavating and conveying device 1 for the harvester are conveyed along the first direction X, that is, from the primary conveying mechanism 10 with a larger width to the secondary conveying mechanism 20 with a smaller width, the crops are easily leaked out of the gap between the primary conveying mechanism 10 and the secondary conveying mechanism 20 in the second direction Y during the conveying process, causing the crops to fall from the primary conveying mechanism 10 to the farmland, thereby causing crop losses. Therefore, the present application sets a gathering mechanism 30 on the primary conveying mechanism 10, and the gathering mechanism 30 has a conveying channel 31. The crops conveyed on the primary conveying mechanism 10 fall into the secondary conveying mechanism 20 after being gathered by the conveying channel 31, thereby preventing the crops from leaking out of the gap between the primary conveying mechanism 10 and the secondary conveying mechanism 20 in the second direction Y.

[0059] In the examples of this application, see Figure 1 and Figure 2 The primary conveying mechanism 10 is arranged at the front end of the excavating and conveying device 1 for the harvester in the traveling direction, and the secondary conveying mechanism 20 is arranged on the traveling drive part (frame). The secondary conveying mechanism 20 is driven to travel by the traveling drive part, and the secondary conveying mechanism 20 drives the primary conveying mechanism 10 to travel. When replacing the primary conveying mechanism 10, it is only necessary to remove the primary conveying mechanism 10 from the secondary conveying mechanism 20, and there is no need to replace the traveling drive part, thereby reducing the cost of farmers or contractors harvesting crops at different ridge spacing or row spacing.

[0060] Figure 4 Show Figure 3 The enlarged schematic diagram of B in the middle, Figure 5 A schematic diagram showing the structure of the secondary conveying mechanism according to an embodiment of the present application is shown. In some embodiments, see Figure 1-Figure 5The primary conveying mechanism 10 includes a first bracket 11, a first conveying system 12 and a first connecting seat 13. The secondary conveying mechanism 20 includes a second bracket 21, a second conveying system 22 and a second connecting seat 23. The first conveying system 12 is arranged on the first bracket 11, and the first connecting seat 13 is arranged at one end of the first bracket 11 facing the secondary conveying mechanism 20. The second conveying system 22 is arranged on the second bracket 21, and the second connecting seat 23 is arranged at one end of the second bracket 21 facing the primary conveying mechanism 10. The first connecting seat 13 and the second connecting seat 23 are detachably connected. Through the detachable connection of the first connecting seat 13 and the second connecting seat 23, the detachable connection between the primary conveying mechanism 10 and the secondary conveying mechanism 20 is realized.

[0061] In some embodiments, see Figure 2 The present application also includes a connecting member 60. A first connecting hole is provided on the first connecting seat 13, and a second connecting hole is provided on the second connecting seat 23. The connecting member 60 is passed through the first connecting hole and the second connecting hole, thereby realizing a detachable connection between the primary conveying mechanism 10 and the secondary conveying mechanism 20.

[0062] Exemplarily, the connector 60 can include a bolt and a nut 58. The bolt passes through the first connecting hole and the second connecting hole and is threadedly connected to the nut 58, thereby connecting the first connecting seat 13 and the second connecting seat 23, thereby realizing the connection between the primary conveying mechanism 10 and the secondary conveying mechanism 20. When the primary conveying mechanism 10 needs to be replaced, it is only necessary to remove the nut 58 from the bolt to realize the separation of the primary conveying mechanism 10 and the secondary conveying mechanism 20. It is understandable that in other embodiments, the present application can also realize the detachable connection of the first connecting seat 13 and the second connecting seat 23 through other implementation methods, such as: snap fasteners, limiting structures or mortise and tenon joints, etc. The embodiments of the present application do not specifically limit the implementation method of the connector 60.

[0063] Figure 7 A schematic structural diagram of a primary conveying mechanism and a ground wheel assembly according to an embodiment of the present application is shown. Figure 8 A schematic diagram showing the structure of the primary conveying mechanism and the ground wheel assembly according to an embodiment of the present application is shown. In some embodiments, see Figure 1 、 Figure 3 、 Figure 7 as well as Figure 8The gathering mechanism 30 includes a first baffle 32 and a second baffle 33, which are spaced apart along the second direction Y on the primary conveying mechanism 10. A conveying channel 31 is defined between the first baffle 32 and the second baffle 33. In the first direction X, the conveying channel 31 gradually decreases in size in the second direction Y. During the conveying of crops by the first conveyor system 12, the first baffle 32 and the second baffle 33 guide the crops, causing them to become smaller in size in the second direction Y after being guided by the first baffle 32 and the second baffle 33, and then enter the second conveyor system 22.

[0064] It is understandable that in other embodiments, the gathering mechanism 30 can also achieve the guiding effect on crops by other means, such as: a stop rod or a stop cloth. Two stop rods or stop cloths are respectively provided on the first-level conveying mechanism 10, which can also form a conveying channel 31 for conveying crops.

[0065] In some embodiments, see Figure 1 and Figure 3 , a portion of the first baffle 32 and a portion of the second baffle 33 of the present application extend above the second conveying system 22 respectively, so that the crops will also be guided by the first baffle 32 and the second baffle 33 in the process of falling from the output end of the first conveying system 12 to the input end of the second conveying system 22. Such a setting can further gather the crops under the influence of the soil layer, avoiding the crops from colliding and cutting with the lower edge of subsequent components (such as the aggregate plate) at the output end of the secondary conveying mechanism 20, thereby protecting the crops.

[0066] Figure 10 A schematic diagram showing the structure of a primary conveying mechanism according to an embodiment of the present application is shown. In some embodiments, see Figure 1 、 Figure 4 as well as Figure 10 The first conveying system 12 includes a plurality of conveying rollers 121, which are arranged at intervals along the first direction X. Specifically, the conveying rollers 121 extend along the second direction Y. Adjacent conveying rollers 121 have a first gap 1211 in the first direction X. The size of the first gap 1211 in the first direction X is smaller than the size of the crops, thereby preventing the crops from falling into the ditch from the first gap 1211. The plurality of conveying rollers 121 rotate in the same direction so that the crops can be conveyed along the first direction X under the action of the plurality of conveying rollers 121. The present application uses the conveying rollers 121 to convey crops, so that the crops are continuously switched between the first gap 1211 and the roller surface of the conveying rollers 121 during the conveying process, so that the crops are continuously shaken during the conveying process, thereby shaking off the soil attached to the crops.

[0067] In some other embodiments, the first conveying system 12 includes a conveyor belt or a chain rake.

[0068] In some embodiments, see Figure 3 、 Figure 4 as well as Figure 10 A first gap 1211 is defined between two adjacent conveying rollers 121. When the present application only sets the first baffle 32 and the second baffle 33 above the multiple conveying rollers 121, since the first baffle 32 and the second baffle 33 cannot completely close the first gap 1211, when the crops are conveyed along the first direction X under the action of the multiple conveying rollers 121, some smaller crops will leak out of the conveying channel 31 from the first gap 1211. In order to solve the above problem, the bottom of the first baffle 32 is provided with a plurality of first protrusions 321 adapted to the first gap 1211. The first protrusions 321 are embedded in the first gap 1211, and the two adjacent first protrusions 321 and the first baffle 32 are enclosed to form a first groove adapted to the conveying roller 121. The bottom of the second baffle 33 is provided with multiple second protrusions 331 adapted to the first gap 1211, and the second protrusions 331 are embedded in the first gap 1211. The two adjacent second protrusions 331 and the second baffle 33 are enclosed to form a second groove adapted to the conveying roller 121. The present application achieves the blocking of the first gap 1211 on both sides of the conveying channel 31 by arranging the first protrusion 321 to be embedded in the first gap 1211 and the second protrusion 331 to be embedded in the first gap 1211, so that the crops will not leak out of the first gap 1211 when being conveyed along the first direction X under the action of multiple conveying rollers 121.

[0069] Figure 9 Show Figure 8 In some embodiments, see Figure 1 、 Figure 8 as well as Figure 9 , and also includes an excavating mechanism 14, which is connected to the first bracket 11 and is used to dig crops in the land and transport them to the primary transport mechanism 10, and then transport them to the secondary transport mechanism 20 through the primary transport mechanism 10.

[0070] In the embodiment of the present application, the size of the digging mechanism 14 in the second direction Y is adapted to the size of the first conveying system 12 in the second direction Y, so that the crops dug by the digging mechanism 14 can fall completely onto the first conveying system 12 .

[0071] In some embodiments, see Figure 5 and Figure 6The excavation mechanism 14 includes a first driving mechanism 147, a base 142, an eccentric bearing 143, a connecting rod 144 and a shovel blade 145. The shovel blade 145 is arranged on the base 142. The base 142 is hinged to the first bracket 11 through a hinge block 141. The inner ring of the eccentric bearing 143 is rotatably arranged on the first bracket 11 through a first rotating shaft 146. The first driving mechanism 147 is connected to the first rotating shaft 146 in a transmission manner. One end of the connecting rod 144 is connected to the outer ring of the eccentric bearing 143. The connecting rod The other end of 144 is rotatably connected to the base body 142 through a second rotating shaft, and the first rotating shaft 146 is driven to rotate through the first driving mechanism 147, thereby driving the outer ring of the eccentric bearing 143 to rotate around the first rotating shaft 146 and swing back and forth along the first direction X, thereby driving the connecting rod 144 to swing back and forth along the first direction X, and causing the shovel 145 on the base body 142 to swing back and forth along the first direction X, thereby improving the efficiency of the shovel 145 of this application in cutting farmland soil and reducing excavation resistance.

[0072] Exemplarily, the first driving mechanism 147 is a motor, and the output shaft of the motor is in transmission connection with the first rotating shaft 146, so that the motor can drive the first rotating shaft 146 to rotate. It is understandable that the first driving mechanism 147 can also be a gear transmission or other method, which is not limited here.

[0073] In some embodiments, see Figure 7-Figure 9 The present application also includes a ground wheel assembly 40, which supports the excavating and conveying device 1 for the harvester. The ground wheel assembly 40 is connected to the first bracket 11. The ground wheel assembly 40 and the secondary conveying mechanism 20 are arranged at both ends of the primary conveying mechanism 10 along the first direction X, that is, in the driving direction of the excavating and conveying device 1 for the harvester, the ground wheel assembly 40, the excavating mechanism 14, the primary conveying mechanism 10 and the secondary conveying mechanism 20 are arranged in sequence. Compared with the situation in which the ground wheels are respectively arranged on both sides of the excavating and conveying device 1 for the harvester in the related art, the present application can prevent the ground wheels from crushing the crops on both sides of the ditch, thereby protecting the crops on both sides of the ditch.

[0074] In some embodiments, the ground wheel assembly 40 includes at least one ground wheel mechanism 41, which includes a connecting frame 411, a driving wheel 412, a sliding rod 413, a guide tube 414 and a hydraulic cylinder 415. The connecting frame 411 is connected to the first bracket 11, the guide tube 414 is connected to the connecting frame 411, at least part of the sliding rod 413 is slid in the guide tube 414, the driving wheel 412 is arranged at the bottom of the sliding rod 413, the cylinder body of the hydraulic cylinder 415 is connected to the guide tube 414, and the piston rod of the hydraulic cylinder 415 is connected to the sliding rod 413. The present application can adjust the height of the first bracket 11 from the ground by adjusting the length of the piston rod of the hydraulic cylinder 415 extending out of the cylinder body of the hydraulic cylinder 415. With such a configuration, the present application can adjust the height of the shovel 145 from the ground according to the height of the ground, so as to adapt to farmland under different conditions.

[0075] In some embodiments, see Figure 5 and Figure 6 The second conveying system 22 includes a third driving mechanism, a first chain 226, a second chain 225 and a plurality of chain rake rods 224. The third driving mechanism is transmission-connected to the first chain 226. One end of the chain rake rod 224 is connected to the first chain 226, and the other end of the chain rake rod 224 is connected to the second chain 225. The first chain 226 is driven to rotate by the third driving mechanism, thereby driving the plurality of chain rake rods 224 to rotate along the first direction X, so that the plurality of chain rake rods 224 can convey crops along the first direction X.

[0076] In some embodiments, see Figure 6 and Figure 11 The input end of the second conveying system 22 is lower than the output end of the second conveying system 22, so that the output end of the second conveying system 22 can convey the crops to the vehicle body. With this arrangement, there will be a situation where the crops flow from the output end of the second conveying system 22 to the input end of the second conveying system 22 under the action of gravity when the crops are conveyed on the second conveying system 22. In order to solve the above problem, the second conveying system 22 of the present application also includes a rubber sleeve 223, which is sleeved on the chain rake rod 224, and the rubber sleeve 223 is formed on the chain rake rod 224 by vulcanization. The rubber sleeve 223 includes a plurality of rubber protrusions 221, and the extension direction of the rubber protrusion 221 intersects with the extension direction of the chain rake rod 224. The setting of the rubber protrusion 221 can play a role in limiting the crops, thereby preventing the crops from flowing from the output end of the second conveying system 22 to the input end of the second conveying system 22 under the action of gravity when the crops are conveyed on multiple chain rake rods 224.

[0077] For example, the rubber protrusion 221 protrudes outward away from the chain rake bar 224 so that the rubber protrusion 221 can abut against crops.

[0078] In some embodiments, see Figure 5 and Figure 6 The present application also includes a soil breaking mechanism 50, which is arranged on the second bracket 21 and is used to break up the soil blocks transported together with the crops.

[0079] In some embodiments, see Figure 5 and Figure 6 The soil-breaking mechanism 50 includes a fixed base 51, an elastic member 52, a pressure roller 53, a second drive mechanism 55, and a mounting plate 54. One end of the mounting plate 54 is rotatably mounted on the second bracket 21 via a third rotating shaft 56. The pressure roller 53 is rotatably mounted on the other end of the mounting plate 54, allowing the pressure roller 53 to swing about the first end of the mounting plate 54. The second drive mechanism 55 is in driving connection with the pressure roller 53. A second gap is defined between the chain rake rod 224 corresponding to the pressure roller 53 and the pressure roller 53, allowing crops to pass through. When crops pass through the second gap, soil clods transported along with the crops are crushed, thereby separating the crops from the soil clods. The fixed base 51 is mounted on the second bracket 21. One end of the elastic member 52 abuts the fixed base 51, while the other end abuts the mounting plate 54. The pressure roller 53 is pressed against the chain rake rod 224 by the restoring force of the elastic member 52. The provision of the elastic member 52 prevents the pressure roller 53 from bouncing excessively during operation. When the soil block is larger than the size of the second gap, the soil block passes through the second gap and applies a thrust back to the soil block to the soil pressing roller 53, and the soil pressing roller 53 also applies a thrust toward the chain rake rod 224 to the soil block. Under the thrust of the soil pressing roller 53, the soil block is crushed, thereby achieving the effect of separating crops from the soil block.

[0080] In some embodiments, the soil-breaking mechanism 50 also includes a screw 57 and a nut 58. The nut 58 is arranged on the fixed seat 51. The screw 57 is threadedly connected to the nut 58. The screw 57 is in contact with the mounting plate 54. The extension direction of the screw 57 is perpendicular to the chain rake rod 224. The present application adjusts the relative position of the screw 57 and the nut 58, thereby adjusting the size of the second gap between the chain rake rod 224 and the soil pressing roller 53, thereby adapting to crops of different sizes.

[0081] Illustratively, the second drive mechanism 55 can be a motor, and the output shaft of the motor is in transmission connection with the compacting roller 53. In other embodiments, the third drive mechanism and the second drive mechanism 55 can share a transmission system, wherein a first gear is provided on the first chain 226 to drive the first chain 226 to rotate, and a second gear is provided on the compacting roller 53 to drive the rotation. The first gear and the second gear are driven to rotate via a transmission chain, and the transmission chain is elastically tightened to adapt to the floating of the compacting roller 53 under the action of the spring.

[0082] In some embodiments, the rotation direction of the compacting roller 53 is opposite to that of the second conveying system 22 , so that the compacting roller 53 and the chain rake bar 224 can apply a pushing force to the crops in the same direction.

[0083] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0085] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0086] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0087] The disclosure above provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0088] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A digging and conveying device for a harvester, characterized in that: include: A primary conveying mechanism is used to convey crops along a first direction; the size of the primary conveying mechanism in a second direction is adapted to the ridge spacing or row spacing; the primary conveying mechanism includes a first bracket and a first connecting seat; a secondary conveying mechanism for receiving the crops conveyed by the primary conveying mechanism, and being arranged continuously with the primary conveying mechanism along the first direction, wherein an input end of the secondary conveying mechanism is detachably connected to an output end of the primary conveying mechanism; the secondary conveying mechanism includes a second connecting seat; and the first connecting seat and the second connecting seat are detachably connected; a digging mechanism, the digging mechanism being used to dig and collect the crops in the soil and transport them to the primary transport mechanism, the digging mechanism being connected to the first support; a gathering mechanism disposed on the primary conveying mechanism, the gathering mechanism comprising a conveying channel for gathering the crops conveyed by the primary conveying mechanism, wherein a dimension of the conveying channel in a second direction gradually decreases in a direction from the gathering mechanism toward the secondary conveying mechanism; In which, the first direction intersects with the second direction, the operating width of the first-level conveying mechanism in the second direction is larger than the operating width of the second-level conveying mechanism in the second direction, and the size of the excavating mechanism in the second direction is adapted to the size of the first-level conveying mechanism in the second direction; when the excavating and conveying device is in harvesting operations on plots with different ridge spacings, the first-level conveying mechanism is replaced with a first-level conveying mechanism adapted to the current ridge spacing.

2. The excavating and conveying device for a harvester according to claim 1, characterized in that: The first-level conveying mechanism includes a first conveying system; the second-level conveying mechanism includes a second bracket and a second conveying system; the first conveying system is arranged on the first bracket, and the first connecting seat is arranged at one end of the first bracket facing the second-level conveying mechanism; the second conveying system is arranged on the second bracket, and the second connecting seat is arranged at one end of the second bracket facing the first-level conveying mechanism.

3. The excavating and conveying device for a harvester according to claim 2, characterized in that: The first connecting seat is provided with a first connecting hole, the second connecting seat is provided with a second connecting hole, and the first connecting hole and the second connecting hole are connected by a connecting piece.

4. The excavating and conveying device for a harvester according to claim 2, characterized in that: The gathering mechanism includes a first baffle and a second baffle, which are arranged on the primary conveying mechanism at intervals along the second direction, and a conveying channel is defined between the first baffle and the second baffle; in the first direction, the size of the conveying channel in the second direction gradually becomes smaller.

5. The excavating and conveying device for a harvester according to claim 4, characterized in that: A portion of the first baffle and a portion of the second baffle respectively extend above the second conveying system.

6. The excavating and conveying device for a harvester according to claim 4, characterized in that: The first conveying system includes a plurality of conveying rollers, and the plurality of conveying rollers are arranged at intervals along the first direction.

7. The excavating and conveying device for a harvester according to claim 2, characterized in that: The first conveying system includes a conveyor belt or a chain rake.

8. The excavating and conveying device for a harvester according to claim 6, characterized in that: A first gap is defined between two adjacent conveying rollers; a plurality of first protrusions adapted to the first gap are provided at the bottom of the first baffle, the first protrusions are embedded in the first gap, and the two adjacent first protrusions and the first baffle are combined to form a first groove adapted to the conveying roller, and / or a plurality of second protrusions adapted to the first gap are provided at the bottom of the second baffle, the second protrusions are embedded in the first gap, and the two adjacent second protrusions and the second baffle are combined to form a second groove adapted to the conveying roller.

9. The excavating and conveying device for a harvester according to claim 1, characterized in that: The excavation mechanism includes a first drive mechanism, a base body, an eccentric bearing, a connecting rod and a shovel blade. The shovel blade is arranged on the base body. The base body is hinged to the first bracket through a hinge block. The inner ring of the eccentric bearing is rotatably set on the first bracket through a first rotating shaft. The first drive mechanism is transmission-connected to the first rotating shaft. One end of the connecting rod is connected to the outer ring of the eccentric bearing, and the other end of the connecting rod is rotationally connected to the base body through a second rotating shaft.

10. The excavating and conveying device for a harvester according to claim 2, characterized in that: It also includes a ground wheel assembly, which is connected to the first bracket. The ground wheel assembly and the secondary conveying mechanism are arranged at both ends of the primary conveying mechanism along the first direction.

11. The excavating and conveying device for a harvester according to claim 10, characterized in that: The ground wheel assembly includes at least one ground wheel mechanism, which includes a connecting frame, a driving wheel, a sliding rod, a guide tube and a hydraulic cylinder. The connecting frame is connected to the first bracket, the guide tube is connected to the connecting frame, at least part of the sliding rod is slid in the guide tube, the driving wheel is arranged at the bottom of the sliding rod, the cylinder body of the hydraulic cylinder is connected to the guide tube, and the piston rod of the hydraulic cylinder is connected to the sliding rod.

12. The excavating and conveying device for a harvester according to claim 2, characterized in that: The second conveying system includes a third driving mechanism, a first chain, a second chain and a plurality of chain rake rods. The third driving mechanism is transmission-connected to the first chain, one end of the chain rake rod is connected to the first chain, and the other end of the chain rake rod is connected to the second chain.

13. The excavating and conveying device for a harvester according to claim 12, characterized in that: The second conveying system further includes a rubber sleeve vulcanized on the chain rake rod. The rubber sleeve includes a plurality of rubber protrusions, and an extending direction of the rubber protrusions intersects with an extending direction of the chain rake rod.

14. The excavating and conveying device for a harvester according to claim 2, characterized in that: It also includes a soil breaking mechanism, which is arranged on the second bracket and is used to break up the soil attached to the crops.

15. The excavating and conveying device for a harvester according to claim 14, characterized in that: The soil-breaking mechanism includes a fixed seat, an elastic member, a soil-pressing roller, a second driving mechanism, and a mounting plate. One end of the mounting plate is rotatably set on the second bracket through a third rotating shaft, and the soil-pressing roller is rotatably set on the other end of the mounting plate. The second driving mechanism is transmission-connected to the soil-pressing roller, and a second gap for the crops to pass through is defined between the chain rake rod corresponding to the soil-pressing roller and the soil-pressing roller; the fixed seat is set on the second bracket, one end of the elastic member abuts against the fixed seat, and the other end of the elastic member abuts against the mounting plate.

16. The excavating and conveying device for a harvester according to claim 15, characterized in that: The soil-breaking mechanism further includes a screw and a nut, wherein the screw is threadedly connected to the nut, and the screw abuts against the mounting plate.

17. The excavating and conveying device for a harvester according to claim 15, characterized in that: The rotation direction of the soil compacting roller is opposite to the rotation direction of the second conveying system.

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