Green Chinese onion harvester with conveyor belt spacing self-adaptive adjustment function

Abstract

The utility model discloses a green Chinese onion harvester capable of adaptively adjusting the distance between conveying belts. The green Chinese onion harvester comprises a rack, a rotary tillage assembly, a guide assembly, a conveying assembly, a soil shaking assembly and a collecting assembly. The conveying assembly comprises a first conveying set and a second conveying set, the first conveying set comprises a first fixed side and a first movable side, the second conveying set comprises a second fixed side and a second movable side, a conveying gap is formed between the first movable side and the second movable side, and the first movable side can deviate from or be close to the first fixed side. The second movable side can deviate from or approach the second fixed side to adjust the size of the conveying gap, and the height between the conveying gap and the ground is gradually increased in a preset gradient from the front to the rear of the rack, so that the green Chinese onions in the conveying gap are pulled up from the ground. In the transportation process of the green Chinese onions, the conveying gap can be adjusted according to the diameter of the green Chinese onions, so that the first movable side and the second movable side are always in contact with the green Chinese onions, and the harvesting efficiency of the green Chinese onions is improved.

Description

Technical Field

[0001] The utility model relates to the field of green onion harvesters, in particular to a green onion harvester with self-adaptive adjustment of the conveyor belt spacing. Background Art

[0002] As the world's largest exporter of green onions, my country has a wide range of green onion planting areas, accounting for about 10% of the total vegetable area. Green onions have an important impact on my country's regional economy. The green onion planting areas in Shandong, Henan and Hebei provinces account for about 45% of the total green onion planting area in the country. With the annual increase in export volume, the traditional manual harvesting of green onions has low work efficiency and high labor costs, which is difficult to meet market demand. High-level mechanized harvesting of green onions has become an inevitable trend.

[0003] At present, the technology of foreign onion combine harvesters is relatively mature, the equipment is relatively advanced, and the mechanization level and automation level are relatively high. There are T110-PO845 side-traction leek harvesters for large farms and HG100 onion harvesters for small plots. Due to the incompatibility of planting varieties and patterns, coupled with price issues, foreign onion harvesters cannot be applied and promoted in my country. Domestic onion harvesting is mainly manual, with a low degree of mechanization. Most of the segmented harvesters are used, which have high operating costs, large labor and intensity. Small self-propelled onion harvesters are more suitable for my country's onion planting needs. However, in the existing onion harvesters, the conveying link cannot achieve adaptive adjustment according to the diameter of the onion, resulting in the friction of onions of different diameters changing during the harvesting process. Some onions cannot be completely pulled out, resulting in missed harvesting of onions. Summary of the invention

[0004] In view of this, the purpose of the utility model is to provide a green onion harvester with adaptively adjustable conveyor belt spacing.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the utility model is:

[0006] A green onion harvester with adaptively adjustable conveyor belt spacing comprises a frame, a rotary tillage assembly, a guide assembly, a conveying assembly, a soil shaking assembly and a collecting assembly; the rotary tillage assembly is arranged at the front end of the frame, the rotary tillage assembly comprises two rotary tillage blades arranged opposite to each other, and the rotary tillage blades are used to loosen the soil on both sides of the green onion; the guide assembly is arranged at the rear of the rotary tillage assembly, and the guide assembly is used to guide the green onion; the conveying assembly comprises a first conveying group and a second conveying group, the first conveying group is arranged opposite to the second conveying group, the first conveying group comprises a first fixed side and a first movable side, the first fixed side is arranged opposite to the first movable side, and the second conveying group comprises a second fixed side and a second movable side, the second fixed side and the second movable side are arranged opposite to each other, a conveying gap is provided between the first movable side and the second movable side, the first movable side can deviate from or approach the first fixed side, and the second movable side can deviate from or approach the second fixed side, so as to adjust the size of the conveying gap, the conveying gap is distributed in a vertical direction, and the height of the conveying gap and the ground gradually increases from the front to the rear of the frame in a preset gradient, so as to pull the green onions in the conveying gap from the ground; a soil shaking assembly is arranged below the conveying assembly, and the soil shaking assembly is used to clear the soil at the roots of the pulled green onions; a collecting assembly is arranged at the output end of the conveying assembly, and the collecting assembly is used to collect the green onions.

[0007] In some embodiments, the first conveying group includes a first conveyor belt, a first driving shaft, a first driven shaft, a first driving unit, a first adjustment plate, a second adjustment plate and a plurality of first spacing adjustment groups, the first conveyor belt having a first fixed side and a first movable side; the first driving shaft is movably connected to the frame; the first driven shaft and the first driving shaft are relatively arranged on the frame, and the first conveyor belt is sleeved on the periphery of the first driving shaft and the first driven shaft; the first driving unit is transmission-connected to the first driving shaft; the first adjustment plate is arranged between the first driving shaft and the first driven shaft; the second adjustment plate is arranged between the first driving shaft and the first driven shaft, and the first adjustment plate and the second adjustment plate are relatively arranged on both sides of the first conveyor belt; a plurality of first spacing adjustment groups are spaced between the first adjustment plate and the second adjustment plate, and are arranged inside the first conveyor belt to adjust the spacing between the first movable side and the first fixed side.

[0008] In some embodiments, the first spacing adjustment group includes a first fixed roller, a first movable plate, a second movable plate and a first movable roller, the first fixed roller is arranged between the first adjustment plate and the second adjustment plate, and is arranged close to the first fixed side, and the first fixed roller is parallel to the first driven shaft; one end of the first movable plate is connected to one end of the first fixed roller, and the other end of the first movable plate extends toward the first movable side; one end of the second movable plate is connected to the other end of the first fixed roller, and the other end of the second movable plate extends toward the first movable side; the first movable roller is arranged between the first movable plate and the second movable plate; the first movable roller can rotate relative to the first fixed roller to adjust the distance between the first movable roller and the first fixed roller to adjust the distance between the first movable side and the first fixed side.

[0009] In some embodiments, the first spacing adjustment group further includes a first fastener and a first elastic member, the first fastener is disposed on the first adjustment plate and disposed on one side of the first fixed roller; one end of the first elastic member is connected to the first fastener, and the other end of the first elastic member is connected to one end of the first movable roller; the number of the first fasteners is two, which are disposed on both sides of the first fixed roller, and the number of the first elastic members is two, and both of the two first elastic members are connected to one end of the first movable roller at one place;

[0010] And / or, the first spacing adjustment group also includes a second fastener and a second elastic member, the second fastener is arranged on the second adjustment plate and on one side of the first fixed roller; one end of the second elastic member is connected to the second fastener, and the other end of the second elastic member is connected to the other end of the first movable roller; the number of the second fasteners is two, which are relatively arranged on both sides of the first fixed roller, the number of the second elastic members is two, and the two second elastic members are connected to the other end of the first movable roller at one place.

[0011] In some embodiments, the second conveying group includes a second conveyor belt, a second driving shaft, a second driven shaft, a second driving unit, a third adjustment plate, a fourth adjustment plate and a plurality of second spacing adjustment groups, the second conveyor belt having a second fixed side and a second movable side; the second driving shaft is movably connected to the frame; the second driven shaft and the second driving shaft are relatively arranged on the frame, and the second conveyor belt is sleeved on the periphery of the second driving shaft and the second driven shaft; the second driving unit is transmission-connected to the second driving shaft; the third adjustment plate is arranged between the second driving shaft and the second driven shaft; the fourth adjustment plate is arranged between the second driving shaft and the second driven shaft, and the third adjustment plate and the fourth adjustment plate are relatively arranged on both sides of the second conveyor belt; a plurality of second spacing adjustment groups are spaced between the third adjustment plate and the fourth adjustment plate, and are arranged inside the second conveyor belt to adjust the spacing between the second movable side and the second fixed side.

[0012] In some embodiments, the second spacing adjustment group includes a second fixed roller, a third movable plate, a fourth movable plate and a second movable roller, the second fixed roller is arranged between the third adjustment plate and the fourth adjustment plate, and is arranged close to the second fixed side, and the second fixed roller is parallel to the second driven shaft; one end of the third movable plate is connected to one end of the second fixed roller, and the other end of the third movable plate extends toward the second movable side; one end of the fourth movable plate is connected to the other end of the second fixed roller, and the other end of the fourth movable plate extends toward the second movable side; the second movable roller is arranged between the third movable plate and the fourth movable plate; the second movable roller can rotate relative to the second fixed roller to adjust the distance between the second movable roller and the second fixed roller to adjust the distance between the second movable side and the second fixed side.

[0013] In some embodiments, the second spacing adjustment group further includes a third fastener and a third elastic member, the third fastener is arranged on the third adjustment plate and arranged on one side of the second fixed roller; one end of the third elastic member is connected to the third fastener, and the other end of the third elastic member is connected to one end of the second movable roller; the number of the third fasteners is two, which are arranged on both sides of the second fixed roller, and the number of the third elastic members is two, and the two third elastic members are connected to one end of the second movable roller at one place;

[0014] And / or, the second spacing adjustment group also includes a fourth fastener and a fourth elastic member, the fourth fastener is arranged on the fourth adjustment plate and on one side of the second fixed roller; one end of the fourth elastic member is connected to the fourth fastener, and the other end of the fourth elastic member is connected to the other end of the second movable roller; the number of the fourth fasteners is two, which are relatively arranged on both sides of the second fixed roller, the number of the fourth elastic members is two, and the two fourth elastic members are both connected to the other end of the second movable roller at one place.

[0015] In some embodiments, the rotary tillage assembly includes a third drive unit, two screw rod groups, two connecting brackets and two fourth drive units, the third drive unit is arranged on the frame; the two screw rod groups include two screw rods laid in parallel in the vertical direction, the two screw rods are transmission connected to the third drive unit, and each screw rod is provided with a screw nut; a connecting bracket is connected to a screw rod nut, and a rotary tillage blade is movably provided at the end of the connecting bracket; a fourth drive unit is arranged on a connecting bracket, and a fourth drive unit is transmission connected to a rotary tillage blade to drive the rotary tillage blade to rotate.

[0016] In some embodiments, there are two guide assemblies, which are arranged opposite to each other. Each guide assembly includes a first fixed frame and a first movable frame. The first fixed frame is arranged on the frame. The first movable frame is spaced apart from the first fixed frame and is arranged on the side facing the green onions. A plurality of fifth elastic members are arranged between the first fixed frames.

[0017] In some embodiments, the soil shaking assembly includes a mounting frame, a fifth drive unit and a soil shaking brush. The mounting frame is set on the frame, and the other end of the mounting frame extends upward; the fifth drive unit is set on the mounting frame; the soil shaking brush is set at one end of the mounting frame extending upward, and the soil shaking brush is transmission-connected to the fifth drive unit.

[0018] By adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0019] The green onion harvester includes a frame, a rotary tillage component, a guide component, a conveying component, a soil shaking component and a collecting component; the conveying component includes a first conveying group and a second conveying group, the first conveying group and the second conveying group are arranged opposite to each other, the first conveying group includes a first fixed side and a first movable side, the first fixed side and the first movable side are arranged opposite to each other, the second conveying group includes a second fixed side and a second movable side, the second fixed side and the second movable side are arranged opposite to each other, a conveying gap is provided between the first movable side and the second movable side, the first movable side can deviate from or approach the first fixed side, and the second movable side can deviate from or approach the second fixed side to adjust the size of the conveying gap, the conveying gap is distributed in a vertical direction, and the height of the conveying gap and the ground gradually increases from the front to the rear of the frame in a preset gradient to pull the green onions in the conveying gap from the ground. By moving the first movable side and the second movable side, adaptive adjustment of the conveying gap can be achieved. During the transportation of green onions, the conveying gap can be adjusted according to the diameter of the green onions, so that the first movable side and the second movable side always keep in contact with the green onions, reducing the probability that the green onions cannot be pulled out of the soil by the conveying component due to their small diameter, thereby improving the harvesting efficiency of green onions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 is a schematic diagram of the specific structure of the green onion harvester described in the specific implementation method;

[0022] Figure 2 is a schematic diagram of the top view of the conveying assembly described in the specific implementation method;

[0023] Figure 3 is a schematic diagram of the specific structure of the rotary tillage assembly described in the specific implementation method;

[0024] Figure 4 is a schematic diagram of the specific structure of the guide assembly described in the specific implementation method;

[0025] Figure 5 It is a schematic diagram of the specific structure of the soil shaking assembly described in the specific implementation method.

[0026] Reference numerals:

[0027] 1. Frame;

[0028] 11. Roller;

[0029] 2. Rotary tillage assembly;

[0030] 21. Rotary tillage blade;

[0031] 22. The third driving unit;

[0032] 23. Screw rod assembly;

[0033] 24. Connect the bracket;

[0034] 25. Fourth driving unit;

[0035] 3. Guide assembly;

[0036] 31. A first fixing frame;

[0037] 32. The first movable frame;

[0038] 33. fifth elastic member;

[0039] 4. Conveying components;

[0040] 41. The first conveying group;

[0041] 411, first conveyor belt;

[0042] 412, first driving shaft;

[0043] 413, first driven shaft;

[0044] 414. A first driving unit;

[0045] 415, first adjustment plate;

[0046] 42. First spacing adjustment group;

[0047] 421, first fixed roller;

[0048] 422, first movable plate;

[0049] 423, first movable roller;

[0050] 424, first fastener;

[0051] 425, a first elastic member;

[0052] 43. Second conveying group;

[0053] 431, second conveyor belt;

[0054] 432, second driving shaft;

[0055] 433, second driven shaft;

[0056] 434, second driving unit;

[0057] 435, third adjustment plate;

[0058] 44. Second spacing adjustment group;

[0059] 441, second fixed roller;

[0060] 442, third movable plate;

[0061] 443, second movable roller;

[0062] 444, third fastener;

[0063] 445, a third elastic member;

[0064] 5. Shaking soil components;

[0065] 51. Mounting frame;

[0066] 52. Fifth drive unit;

[0067] 53. Shake off the dirt with a brush. DETAILED DESCRIPTION

[0068] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0069] See also Figures 1 to 5A green onion harvester with adaptively adjustable conveyor belt spacing comprises a frame 1, a rotary tillage assembly 2, a guide assembly 3, a conveying assembly 4, a soil shaking assembly 5 and a collecting assembly; the rotary tillage assembly 2 is arranged at the front end of the frame 1, and the rotary tillage assembly 2 comprises two rotary tillage blades 21 arranged opposite to each other, and the rotary tillage blades 21 are used to loosen the soil on both sides of the green onion; the guide assembly 3 is arranged at the rear of the rotary tillage assembly 2, and the guide assembly 3 is used to guide the green onion; the conveying assembly 4 comprises a first conveying group 41 and a second conveying group 43, the first conveying group 41 and the second conveying group 43 are arranged opposite to each other, the first conveying group 41 comprises a first fixed side and a first movable side, the first fixed side and the first movable side are arranged opposite to each other, and the second The conveying group 43 includes a second fixed side and a second movable side, the second fixed side and the second movable side are arranged opposite to each other, and a conveying gap is provided between the first movable side and the second movable side, the first movable side can deviate from or approach the first fixed side, and the second movable side can deviate from or approach the second fixed side to adjust the size of the conveying gap, the conveying gap is distributed in a vertical direction, and the height of the conveying gap and the ground gradually increases from the front to the rear of the frame 1 in a preset gradient to pull the green onions in the conveying gap from the ground; the soil shaking component 5 is arranged below the conveying component 4, and the soil shaking component 5 is used to clear the soil at the roots of the pulled green onions; the collecting component is arranged at the output end of the conveying component 4, and the collecting component is used to collect the green onions.

[0070] In this embodiment, the frame 1 can be constructed by aluminum profiles or steel pipes, and the specific shape can be set according to actual needs. Four rollers 11 are provided at the bottom of the frame 1. Figure 1 As shown in the distribution mode, each roller 11 is provided with a driving device to drive the roller 11 to rotate, thereby driving the entire green onion harvester to move.

[0071] According to the harvesting method of green onions, in this embodiment, a rotary tillage component 2, a guide component 3, a conveying component 4 and a collecting component are sequentially arranged on the frame 1 from front to back, wherein the soil shaking component 5 is arranged below the conveying component 4 and is arranged in the area near the output end of the conveying component 4, so as to clean the soil at the root of the green onion before the green onion enters the collecting component. The rotary tillage component 2 has two relatively arranged rotary tillage blades 21, and the rotary tillage blades 21 can rotate relative to the frame 1 to remove the soil caked around the root of the green onion, so that the root of the green onion can be convenient for subsequent pulling out operations. The guide component 3 is arranged between the rotary tillage component 2 and the input end of the conveying component 4, and the guide component 3 is convenient for guiding the green onion into the conveying component 4, avoiding the green onion from being offset during transportation, and reducing the probability of the stem of the green onion being broken when the subsequent conveying component 4 clamps the green onion. The rotary tillage component 2, the guide component 3 and the soil shaking component 5 can adopt existing structural devices, or can use the structure described later to achieve the above functions.

[0072] In this embodiment, the collecting assembly includes a collecting guide plate and a storage basket. The collecting guide plate is arranged behind the conveying assembly 4, and can guide the green onions in a vertical state from the output end of the conveying assembly 4 to the collecting basket, thereby completing the entire green onion storage operation. The collecting basket can be detachably connected to the frame 1, and the collecting basket is arranged at the end of the collecting guide plate. After the harvesting is completed, the collecting basket can be replaced to facilitate the start of the next round of green onion harvesting operation.

[0073] Specifically, the conveying assembly 4 shown in this embodiment includes a first conveying group 41 and a second conveying group 43. The structures of the first conveying group 41 and the second conveying group 43 can be completely the same. The difference is that there is a difference in the setting positions of the first conveying group 41 and the second conveying group 43 on the frame 1. The first conveying group 41 and the second conveying group 43 are relatively set on the frame 1. The first conveying group 41 has a first movable side and a first fixed side. The first movable side can move relative to the first fixed side: the first movable side can be close to the first fixed side, or the first movable side can be away from the first fixed side; similarly, the second conveying group 43 has a second movable side and a second fixed side. The second movable side can move relative to the second fixed side: the second movable side can be close to the second fixed side, or the second movable side can be away from the second fixed side. There is a conveying gap between the first movable side and the second movable side. When the first movable side is close to the first fixed side and the second movable side is close to the second fixed side, the spacing of the conveying gap becomes larger. When the first movable side is away from the first fixed side and the second movable side is away from the second fixed side, the spacing of the conveying gap becomes smaller.

[0074] In this embodiment, the conveying gap is distributed in the vertical direction, and at the same time, the height of the conveying gap and the ground gradually increases from the front to the rear of the frame 1 in a preset gradient, that is, the laying direction of the first conveying group 41 and the second conveying group 43 is set at a certain angle to the horizontal plane, and the preset gradient can be set according to actual needs. When the frame 1 moves forward, the conveying gap is used to clamp and drive the green onions to be transported backward. Since there is friction between the green onions and the conveying gap, the green onions will be gradually lifted under the action of friction, so that the roots of the green onions are separated from the soil, completing the onion pulling operation.

[0075] When the green onions are lifted to the range of the soil shaking component 5, the roots of the green onions enter the area where the soil shaking component 5 is located, and the soil shaking component 5 clears the soil from the roots of the green onions. Finally, the green onions are transported to the area where the collecting component is located under the drive of the conveying gap, and the collecting component collects the green onions.

[0076] This embodiment can realize adaptive adjustment of the conveying gap through the movement of the first movable side and the second movable side. During the transportation of green onions, the conveying gap can be adjusted according to the diameter of the green onions, so that the first movable side and the second movable side always keep in contact with the green onions, reducing the probability that the green onions cannot be pulled out of the soil by the conveying component 4 due to their small diameter, thereby improving the harvesting efficiency of green onions.

[0077] See also Figure 1 and Figure 2 In some embodiments, the first conveying group 41 includes a first conveying belt 411, a first driving shaft 412, a first driven shaft 413, a first driving unit 414, a first adjustment plate 415, a second adjustment plate and a plurality of first spacing adjustment groups 42, the first conveying belt 411 has a first fixed side and a first movable side; the first driving shaft 412 is movably connected to the frame 1; the first driven shaft 413 and the first driving shaft 412 are arranged on the frame 1 relative to each other, and the first conveying belt 411 is sleeved on the periphery of the first driving shaft 412 and the first driven shaft 413 ; The first driving unit 414 is transmission-connected to the first driving shaft 412; the first adjustment plate 415 is arranged between the first driving shaft 412 and the first driven shaft 413; the second adjustment plate is arranged between the first driving shaft 412 and the first driven shaft 413, and the first adjustment plate 415 and the second adjustment plate are arranged oppositely on both sides of the first conveyor belt 411; a plurality of first spacing adjustment groups 42 are arranged at intervals between the first adjustment plate 415 and the second adjustment plate, and are arranged inside the first conveyor belt 411 to adjust the spacing between the first movable side and the first fixed side.

[0078] In this embodiment, the first conveying group 41 has a first conveyor belt 411, and the first conveying group 41 also includes a first driving unit 414, a first driving shaft 412 and a first driven shaft 413. The first driving unit 414 and the first driving shaft 412 can be connected by a coupling transmission, and the first driven shaft 413 can rotate relative to the frame 1. Then the first conveyor belt 411 is sleeved on the periphery of the first driving shaft 412 and the first driven shaft 413 to form a conveyor belt structure. In this embodiment, the side of the first conveyor belt 411 facing the green onions is recorded as the first active side, and the side of the first conveyor belt 411 away from the green onions is recorded as the first fixed side. A first adjustment plate 415 is provided on the same side of the first driving shaft 412 and the first driven shaft 413, and a second adjustment plate is provided on the other same side of the first driving shaft 412 and the first driven shaft 413. Figure 1 and Figure 2 As shown, a plurality of first spacing adjustment groups 42 are spaced apart between the first adjustment plate 415 and the second adjustment plate. The first spacing adjustment groups 42 are in contact with the first movable side and are used to adjust the spacing between the first movable side and the first fixed side.

[0079] For further information, see Figure 2In some embodiments, the first spacing adjustment group 42 includes a first fixed roller 421, a first movable plate 422, a second movable plate and a first movable roller 423. The first fixed roller 421 is arranged between the first adjustment plate 415 and the second adjustment plate, and is arranged close to the first fixed side. The first fixed roller 421 is parallel to the first driven shaft 413; one end of the first movable plate 422 is connected to one end of the first fixed roller 421, and the other end of the first movable plate 422 extends toward the first movable side; one end of the second movable plate is connected to the other end of the first fixed roller 421, and the other end of the second movable plate extends toward the first movable side; the first movable roller 423 is arranged between the first movable plate 422 and the second movable plate; the first movable roller 423 can rotate relative to the first fixed roller 421 to adjust the distance between the first movable roller 423 and the first fixed roller 421 to adjust the distance between the first movable side and the first fixed side.

[0080] The first spacing adjustment group 42 includes a first fixed roller 421, a first movable plate 422, a second movable plate and a first movable roller 423, wherein the first fixed roller 421 is arranged on the first adjustment plate 415 and the second adjustment plate, the first movable plate 422 and the second movable plate are arranged at two ends of the first fixed roller 421, and the first movable plate 422 and the second movable plate can rotate relative to the first fixed roller 421, and the first movable roller 423 is arranged between the first movable plate 422 and the second movable plate. Figure 2 As shown, in this mode, the first movable roller 423, the first movable plate 422, the second movable plate and the first fixed roller 421 form a connecting rod structure, the first movable roller 423 can rotate relative to the first fixed roller 421, and the first movable roller 423 is in contact with the first movable side. When the first movable roller 423 rotates relative to the first fixed roller 421, the distance between the first movable roller 423 and the first fixed side gradually decreases or increases with the change of the rotation angle, and the first movable side follows the first movable roller 423 under the action of elastic deformation to move closer to or away from the first fixed side. The moving direction of the first movable roller 423 is as shown in FIG. Figure 2 As indicated by the double-sided arrows in .

[0081] For further information, see Figure 2 In some embodiments, the first spacing adjustment group 42 further includes a first fastener 424 and a first elastic member 425. The first fastener 424 is disposed on the first adjustment plate 415 and disposed on one side of the first fixed roller 421. One end of the first elastic member 425 is connected to the first fastener 424, and the other end of the first elastic member 425 is connected to one end of the first movable roller 423. There are two first fasteners 424, which are disposed on both sides of the first fixed roller 421. There are two first elastic members 425, and both of the two first elastic members 425 are connected to one end of the first movable roller 423 at one place.

[0082] In this embodiment, two first elastic members 425 are provided, so that a triangular connection structure is formed between the first elastic member 425 and the first movable roller 423, the first movable plate 422 and the first fixed roller 421. When the green onion squeezes the first movable roller 423 so that the first movable roller 423 rotates toward one side, the first elastic member 425 on the other side is stretched, and the first elastic member 425 on one side is compressed. When the green onion leaves the current first movable roller 423, the first elastic members 425 on both sides elastically deform to restore the first movable roller 423 to the central axis between the two first elastic members 425. At this time, the first elastic members 425 on both sides are balanced in force. This method can realize the automatic reset operation of the first movable roller 423 after squeezing, so that the first movable side always maintains full contact with the green onion.

[0083] And / or, the first spacing adjustment group 42 also includes a second fastener and a second elastic member, the second fastener is arranged on the second adjustment plate and on one side of the first fixed roller 421; one end of the second elastic member is connected to the second fastener, and the other end of the second elastic member is connected to the other end of the first movable roller 423; the number of the second fasteners is two, which are relatively arranged on both sides of the first fixed roller 421, the number of the second elastic members is two, and the two second elastic members are connected to the other end of the first movable roller 423 at one place.

[0084] Similarly, the second fastener and the second elastic member can be understood with reference to the first fastener 424 and the first elastic member 425. By setting the second fastener and the second elastic member, both ends of the first movable roller 423 can be affected by the elastic force, and the rotation and reset of the first movable roller 423 are smoother.

[0085] See also Figure 2 In some embodiments, the second conveying group 43 includes a second conveying belt 431, a second driving shaft 432, a second driven shaft 433, a second driving unit 434, a third adjustment plate 435, a fourth adjustment plate and a plurality of second spacing adjustment groups 44, the second conveying belt 431 has a second fixed side and a second movable side; the second driving shaft 432 is movably connected to the frame 1; the second driven shaft 433 and the second driving shaft 432 are arranged on the frame 1 relative to each other, and the second conveying belt 431 is sleeved on the outer periphery of the second driving shaft 432 and the second driven shaft 433 ; The second driving unit 434 is transmission-connected to the second driving shaft 432; the third adjustment plate 435 is arranged between the second driving shaft 432 and the second driven shaft 433; the fourth adjustment plate is arranged between the second driving shaft 432 and the second driven shaft 433, and the third adjustment plate 435 and the fourth adjustment plate are arranged oppositely on both sides of the second conveyor belt 431; a plurality of second spacing adjustment groups 44 are arranged at intervals between the third adjustment plate 435 and the fourth adjustment plate, and are arranged inside the second conveyor belt 431 to adjust the spacing between the second movable side and the second fixed side.

[0086] In this embodiment, the second conveying group 43 has a second conveyor belt 431, and the second conveying group 43 also includes a second driving unit 434, a second driving shaft 432 and a second driven shaft 433. The second driving unit 434 and the second driving shaft 432 can be connected by a coupling transmission, and the second driven shaft 433 can rotate relative to the frame 1. Then the second conveyor belt 431 is sleeved on the periphery of the second driving shaft 432 and the second driven shaft 433 to form a conveyor belt structure. In this embodiment, the side of the second conveyor belt 431 facing the green onions is recorded as the second active side, and the side of the second conveyor belt 431 away from the green onions is recorded as the second fixed side. A third adjustment plate 435 is provided on the same side of the second driving shaft 432 and the second driven shaft 433, and a fourth adjustment plate is provided on the other same side of the second driving shaft 432 and the second driven shaft 433. Figure 1 and Figure 2 As shown, a plurality of second spacing adjustment groups 44 are spaced apart between the third adjustment plate 435 and the fourth adjustment plate. The second spacing adjustment groups 44 are in contact with the second movable side and are used to adjust the spacing between the second movable side and the second fixed side.

[0087] For further information, see Figure 2 In some embodiments, the second spacing adjustment group 44 includes a second fixed roller 441, a third movable plate 442, a fourth movable plate and a second movable roller 443, the second fixed roller 441 is arranged between the third adjustment plate 435 and the fourth adjustment plate, and is arranged close to the second fixed side, the second fixed roller 441 is parallel to the second driven shaft 433; one end of the third movable plate 442 is connected to one end of the second fixed roller 441, and the other end of the third movable plate 442 extends toward the second movable side; one end of the fourth movable plate is connected to the other end of the second fixed roller 441, and the other end of the fourth movable plate extends toward the second movable side; the second movable roller 443 is arranged between the third movable plate 442 and the fourth movable plate; the second movable roller 443 can rotate relative to the second fixed roller 441 to adjust the distance between the second movable roller 443 and the second fixed roller 441 to adjust the distance between the second movable side and the second fixed side.

[0088] The second spacing adjustment group 44 includes a second fixed roller 441, a third movable plate 442, a fourth movable plate and a second movable roller 443, wherein the second fixed roller 441 is arranged on the third adjustment plate 435 and the fourth adjustment plate, the third movable plate 442 and the fourth movable plate are arranged on both ends of the second fixed roller 441, and the third movable plate 442 and the fourth movable plate can rotate relative to the second fixed roller 441, and the second movable roller 443 is arranged between the third movable plate 442 and the fourth movable plate. Figure 2As shown, in this mode, the second movable roller 443, the third movable plate 442, the fourth movable plate and the second fixed roller 441 form a connecting rod structure, the second movable roller 443 can rotate relative to the second fixed roller 441, and the second movable roller 443 is in contact with the second movable side. When the second movable roller 443 rotates relative to the second fixed roller 441, the distance between the second movable roller 443 and the second fixed side gradually decreases or increases with the change of the rotation angle, and the second movable side moves closer to or away from the second fixed side following the second movable roller 443 under the action of elastic deformation. The movable direction of the second movable roller 443 is as shown in FIG. Figure 2 As indicated by the double-sided arrows in .

[0089] For further information, see Figure 2 In some embodiments, the second spacing adjustment group 44 further includes a third fastener 444 and a third elastic member 445. The third fastener 444 is disposed on the third adjustment plate 435 and disposed on one side of the second fixed roller 441. One end of the third elastic member 445 is connected to the third fastener 444, and the other end of the third elastic member 445 is connected to one end of the second movable roller 443. There are two third fasteners 444, which are disposed on both sides of the second fixed roller 441. There are two third elastic members 445, and both of the two third elastic members 445 are connected to one end of the second movable roller 443 at one place.

[0090] In this embodiment, two third elastic members 445 are provided, so that a triangular connection structure is formed between the third elastic member 445 and the second movable roller 443, the third movable plate 442 and the second fixed roller 441. When the green onion squeezes the second movable roller 443 so that the second movable roller 443 rotates toward one side, the third elastic member 445 on the other side is stretched, and the third elastic member 445 on one side is compressed. Then, when the green onion leaves the current second movable roller 443, the third elastic members 445 on both sides elastically deform to restore the second movable roller 443 to the central axis between the two third elastic members 445. At this time, the third elastic members 445 on both sides are balanced in force. This method can realize the automatic resetting operation of the second movable roller 443 after squeezing, so that the second movable side always maintains full contact with the green onion.

[0091] And / or, the second spacing adjustment group also includes a fourth fastener and a fourth elastic member, the fourth fastener is arranged on the fourth adjustment plate and on one side of the second fixed roller 441; one end of the fourth elastic member is connected to the fourth fastener, and the other end of the fourth elastic member is connected to the other end of the second movable roller 443; the number of the fourth fasteners is two, which are relatively arranged on both sides of the second fixed roller 441, the number of the fourth elastic members is two, and the two fourth elastic members are both connected to the other end of the second movable roller 443 at one place.

[0092] Similarly, the fourth fastener and the fourth elastic member can be understood with reference to the third fastener 444 and the third elastic member 445. By setting the fourth fastener and the fourth elastic member, both ends of the second movable roller 443 can be affected by the elastic force, and the rotation and reset of the second movable roller 443 are smoother.

[0093] See also Figure 3 In some embodiments, the rotary tillage assembly 2 includes a third drive unit 22, two screw rod groups 23, two connecting brackets 24 and two fourth drive units 25, the third drive unit 22 is arranged on the frame 1; the two screw rod groups 23 include two screw rods laid in parallel in the vertical direction, the two screw rods are transmission connected to the third drive unit 22, and each screw rod is provided with a screw nut; a connecting bracket 24 is connected to a screw rod nut, and a rotary tillage blade 21 is movably provided at the end of the connecting bracket 24; a fourth drive unit 25 is arranged on a connecting bracket 24, and a fourth drive unit 25 is transmission connected to a rotary tillage blade 21 to drive the rotary tillage blade 21 to rotate.

[0094] In this embodiment, the number of the third drive unit 22 can be one or two. When the number of the third drive unit 22 is one, the third drive unit 22 is respectively connected to the two screw rods, which can be realized by setting a synchronous pulley, gears, etc.; when the number of the third drive unit 22 is two, one third drive unit 22 is connected to one screw rod for driving the screw rod to rotate. Two screw rod groups 23 are symmetrically arranged on the frame 1, and each screw rod group 23 includes a screw rod and a screw rod nut sleeved on the screw rod, wherein the screw rod is connected to the third drive unit 22. When the screw rod rotates under the drive of the third drive unit 22, the screw rod nut moves up and down with the screw rod to realize the height adjustment of the rotary tillage blade 21. This method can adapt to green onions with different planting depths.

[0095] Furthermore, a connecting bracket 24 is provided on the screw nut. The connecting bracket 24 may be L-shaped. One end of the connecting bracket 24 extends forward to protrude from the frame 1. A rotary tillage blade 21 is provided at one end of the connecting bracket 24 extending forward. The rotary tillage blade 21 can rotate relative to the connecting bracket 24. This connection mode can be achieved by providing a bearing. A fourth driving unit 25 is provided on the connecting bracket 24. The fourth driving unit 25 can drive the rotary tillage blade 21 to rotate to loosen the soil at the root of the green onion.

[0096] It should be noted that the first driving unit 414 , the second driving unit 434 , the third driving unit 22 and the fourth driving unit 25 may all be servo motors, or other devices with driving functions, which is not limited in this embodiment.

[0097] See also Figure 4In some embodiments, there are two guide assemblies 3, which are arranged opposite to each other. Each guide assembly 3 includes a first fixed frame 31 and a first movable frame 32. The first fixed frame 31 is arranged on the frame 1; the first movable frame 32 is spaced apart from the first fixed frame 31 and is arranged on the side facing the green onions. A plurality of fifth elastic members 33 are arranged between the first fixed frames 31 and the first fixed frames 31.

[0098] In the present embodiment, there are two guide assemblies 3, and the structure of one of the guide assemblies 3 is described as follows: the guide assembly 3 includes a first fixed frame 31 and a first movable frame 32, the first fixed frame 31 is arranged on the frame 1, and a plurality of fifth elastic members 33 are arranged between the first fixed frame 31 and the first movable frame 32, so that the first movable frame 32 can be close to or away from the first fixed frame 31, that is, when the first movable frame 32 is subjected to the radial extrusion force of the green onion, it will produce elastic deformation to be compressed by the force and adapt to the growth direction of the green onion. When the frame 1 has a large movement deviation, it will also be fine-tuned under the action of the guide assembly 3 so that the green onion can smoothly enter the conveying gap.

[0099] See also Figure 5 In some embodiments, the soil shaking assembly 5 includes a mounting frame 51, a fifth driving unit 52 and a soil shaking brush 53. The mounting frame 51 is arranged on the frame 1, and the other end of the mounting frame 51 extends upward; the fifth driving unit 52 is arranged on the mounting frame 51; the soil shaking brush 53 is arranged at one end of the mounting frame 51 extending upward, and the soil shaking brush 53 is connected to the fifth driving unit 52 in a transmission manner.

[0100] In this embodiment, there can be two soil shaking assemblies 5 which are relatively arranged on the frame 1. Then, the two soil shaking brushes 53 can clean the soil on both sides of the root of the green onion at the same time to remove most of the soil from the root of the green onion.

[0101] Specifically, the soil shaking assembly 5 includes a mounting frame 51, a fifth driving unit 52 and a soil shaking brush 53, wherein one end of the mounting frame 51 is arranged on the frame 1, and the other end of the mounting frame 51 extends upward. Optionally, the end of the mounting frame 51 extending upward is recorded as an extended end, and the fifth driving unit 52 is arranged below the extended end, and the soil shaking brush 53 is arranged above the extended end. The output end of the fifth driving unit 52 passes through the extended end and protrudes above the extended end. A coupling is provided between the fifth driving unit 52 and the soil shaking brush 53 to realize the transmission connection between the soil shaking brush 53 and the fifth driving unit 52.

[0102] In some optional embodiments, a distance sensor may be provided at the extension end. When the proximity of the root of the green onion is sensed, the fifth driving unit 52 is controlled to drive the soil shaking brush 53 to rotate. This method can save the operating time of the fifth driving unit 52.

[0103] The green onion harvester includes a frame 1, a rotary tillage component 2, a guide component 3, a conveying component 4, a soil shaking component 5 and a collecting component; the conveying component 4 includes a first conveying group 41 and a second conveying group 43, the first conveying group 41 and the second conveying group 43 are arranged opposite to each other, the first conveying group 41 includes a first fixed side and a first movable side, the first fixed side and the first movable side are arranged opposite to each other, the second conveying group 43 includes a second fixed side and a second movable side, the second fixed side and the second movable side are arranged opposite to each other, there is a conveying gap between the first movable side and the second movable side, the first movable side can deviate from or approach the first fixed side, and the second movable side can deviate from or approach the second fixed side to adjust the size of the conveying gap, the conveying gap is distributed in a vertical direction, and the height of the conveying gap and the ground gradually increases from the front to the rear of the frame 1 in a preset gradient to pull the green onions in the conveying gap from the ground. By moving the first movable side and the second movable side, adaptive adjustment of the conveying gap can be achieved. During the transportation of green onions, the conveying gap can be adjusted according to the diameter of the green onions, so that the first movable side and the second movable side always keep in contact with the green onions, reducing the probability that the green onions cannot be pulled out of the soil by the conveying component 4 due to their small diameter, thereby improving the harvesting efficiency of green onions.

[0104] The above descriptions are only some embodiments of the present invention, and do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A green onion harvester with adaptively adjustable conveyor belt spacing, characterized in that: include: frame; A rotary tillage assembly is arranged at the front end of the frame, and the rotary tillage assembly includes two rotary tillage blades arranged opposite to each other, and the rotary tillage blades are used to loosen the soil on both sides of the green onion; A guide assembly is arranged behind the rotary tillage assembly, and the guide assembly is used to guide the green onion; A conveying assembly, comprising a first conveying group and a second conveying group, wherein the first conveying group and the second conveying group are arranged opposite to each other, the first conveying group comprises a first fixed side and a first movable side, wherein the first fixed side and the first movable side are arranged opposite to each other, the second conveying group comprises a second fixed side and a second movable side, wherein the second fixed side and the second movable side are arranged opposite to each other, a conveying gap is provided between the first movable side and the second movable side, the first movable side can depart from or approach the first fixed side, and the second movable side can depart from or approach the second fixed side, so as to adjust the size of the conveying gap, the conveying gap is distributed in a vertical direction, and the height of the conveying gap and the ground increases gradually from the front to the rear of the rack in a preset gradient, so as to pull the green onions in the conveying gap from the ground; A soil shaking assembly is arranged below the conveying assembly, and the soil shaking assembly is used to clean the soil at the roots of the pulled up green onions; A collecting component is arranged at the output end of the conveying component, and the collecting component is used to collect the green onions.

2. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 1, characterized in that: The first conveying group comprises: A first conveyor belt having the first fixed side and a first movable side; A first driving shaft, movably connected to the frame; A first driven shaft is arranged on the frame opposite to the first driving shaft, and the first conveyor belt is sleeved on the periphery of the first driving shaft and the first driven shaft; A first driving unit, drivingly connected to the first driving shaft; A first adjustment plate, disposed between the first driving shaft and the first driven shaft; A second adjustment plate is arranged between the first driving shaft and the first driven shaft, and the first adjustment plate and the second adjustment plate are arranged oppositely on both sides of the first conveyor belt; A plurality of first spacing adjustment groups are arranged between the first adjustment plate and the second adjustment plate at intervals and inside the first conveyor belt to adjust the spacing between the first movable side and the first fixed side.

3. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 2 is characterized in that: The first spacing adjustment group includes: a first fixed roller, disposed between the first adjustment plate and the second adjustment plate and close to the first fixed side, wherein the first fixed roller is parallel to the first driven shaft; a first movable plate, one end of which is connected to one end of the first fixed roller, and the other end of which extends toward the first movable side; a second movable plate, one end of which is connected to the other end of the first fixed roller, and the other end of which extends toward the first movable side; A first movable roller, disposed between the first movable plate and the second movable plate; The first movable roller can rotate relative to the first fixed roller, and the distance between the first movable roller and the first fixed roller can be adjusted to adjust the distance between the first movable side and the first fixed side.

4. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 3 is characterized in that: The first spacing adjustment group also includes: a first fastener, disposed on the first adjusting plate and on one side of the first fixing roller; a first elastic member, wherein one end of the first elastic member is connected to the first fastener, and the other end of the first elastic member is connected to one end of the first movable roller; There are two first fasteners, which are arranged on two sides of the first fixed roller, and there are two first elastic members, both of which are connected to one end of the first movable roller at one point. And / or, the first spacing adjustment group further includes: a second fastener, disposed on the second adjusting plate and disposed on one side of the first fixing roller; a second elastic member, one end of the second elastic member is connected to the second fastener, and the other end of the second elastic member is connected to the other end of the first movable roller; There are two second fasteners, which are arranged on two sides of the first fixed roller. There are two second elastic members, which are connected to the other end of the first movable roller at one point.

5. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 1, characterized in that: The second conveying group includes: A second conveyor belt having the second fixed side and a second movable side; A second driving shaft, movably connected to the frame; A second driven shaft is arranged on the frame opposite to the second driving shaft, and the second conveyor belt is sleeved on the periphery of the second driving shaft and the second driven shaft; A second driving unit, drivingly connected to the second driving shaft; a third adjustment plate, disposed between the second driving shaft and the second driven shaft; a fourth adjustment plate, disposed between the second driving shaft and the second driven shaft, and the third adjustment plate and the fourth adjustment plate are disposed oppositely on both sides of the second conveyor belt; A plurality of second spacing adjustment groups are arranged between the third adjustment plate and the fourth adjustment plate at intervals and inside the second conveyor belt to adjust the spacing between the second movable side and the second fixed side.

6. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 5, characterized in that: The second spacing adjustment group includes: a second fixed roller, disposed between the third adjustment plate and the fourth adjustment plate and close to the second fixed side, wherein the second fixed roller is parallel to the second driven shaft; a third movable plate, one end of which is connected to one end of the second fixed roller, and the other end of which extends toward the second movable side; a fourth movable plate, one end of which is connected to the other end of the second fixed roller, and the other end of which extends toward the second movable side; A second movable roller, arranged between the third movable plate and the fourth movable plate; The second movable roller can rotate relative to the second fixed roller, and the distance between the second movable roller and the second fixed roller can be adjusted to adjust the distance between the second movable side and the second fixed side.

7. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 6, characterized in that: The second spacing adjustment group also includes: a third fastener, disposed on the third adjustment plate and disposed on one side of the second fixing roller; a third elastic member, one end of which is connected to the third fastener, and the other end of which is connected to one end of the second movable roller; There are two third fasteners, which are arranged on two sides of the second fixed roller. There are two third elastic members, which are connected to one end of the second movable roller at one point. And / or, the second spacing adjustment group further includes: a fourth fastener, disposed on the fourth adjusting plate and disposed on one side of the second fixing roller; a fourth elastic member, one end of which is connected to the fourth fastener, and the other end of which is connected to the other end of the second movable roller; There are two fourth fasteners, which are arranged on two sides of the second fixed roller. There are two fourth elastic members, which are connected to the other end of the second movable roller at one point.

8. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 1, characterized in that: The rotary tillage assembly comprises: A third driving unit is arranged on the frame; Two screw rod groups, including two screw rods laid in parallel along the vertical direction, the two screw rods are transmission-connected to the third driving unit, and each of the screw rods is sleeved with a screw rod nut; Two connecting brackets, one of the connecting brackets is connected to one of the screw nut, and a rotary tillage blade is movably provided at the end of the connecting bracket; Two fourth drive units, one of the fourth drive units is arranged on one of the connecting brackets, and one of the fourth drive units is transmission-connected to one of the rotary tilling blades to drive the rotary tilling blade to rotate.

9. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 1, characterized in that: The number of the guide assemblies is two, the two guide assemblies are arranged opposite to each other, and each guide assembly includes: A first fixing frame, arranged on the frame; The first movable frame is spaced apart from the first fixed frame and is arranged on the side facing the green onions. A plurality of fifth elastic members are arranged between the first fixed frame and the second fixed frame.

10. The green onion harvester with adaptively adjustable conveyor belt spacing according to claim 1, characterized in that: The soil shaking component comprises: A mounting frame, arranged on the frame, with the other end of the mounting frame extending upward; a fifth driving unit, arranged on the mounting frame; A soil shaking brush is arranged at one end of the mounting frame extending upward, and the soil shaking brush is transmission-connected to the fifth driving unit.

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