Straight plate conveying device for green Chinese onion combine harvester

Abstract

The utility model belongs to the technical field of green Chinese onion harvesters, and discloses a straight plate conveying device for a green Chinese onion combine harvester, which comprises two conveying frames arranged side by side, and each conveying frame is provided with a conveying mechanism for clamping and conveying green Chinese onion leaves. The two conveying mechanisms are jointly provided with a conveying distance adjusting mechanism, the front conveying end of each conveying frame is provided with a leaf sorting mechanism, a sorting assembly used for sorting green Chinese onion root hair is jointly arranged below the two conveying frames, and a soil guide plate is obliquely arranged below the sorting assembly. The leaf sorting guide structure before conveying is additionally arranged, the problem that the integrity of green Chinese onions is affected due to the fact that green Chinese onion leaves are bent is solved, meanwhile, the conveying gap can be adjusted, and the green Chinese onion harvester is suitable for harvesting work of different varieties of green Chinese onions.

Description

Technical Field

[0001] The utility model relates to the technical field of green onion harvesters, in particular to a straight plate conveying device for green onion combine harvesters. Background Art

[0002] Green onion is an important economic crop in northern my country. It has a long history of cultivation in my country and is one of the specialty vegetables in northern my country. It is also a favorite condiment for people in Shandong, Henan, Northeast China and other regions.

[0003] In production, green onions are harvested mainly by manual means, using a hoe to dig them out and then picking them up and shaking off the soil manually. In recent years, with the introduction of advanced foreign technology and the strong investment in scientific research in my country, many types of green onion harvesters have appeared in my country to carry out automated mechanical harvesting of green onions.

[0004] In the Chinese utility model patent application number 201520430190.0, a conveying mechanism for a green onion harvester is proposed. The patent mainly has the following problems: first, the conveyor belt is used to clamp the green onion leaves for transmission. In the later stage of green onion growth, due to the influence of factors such as increased plant weight, strong wind, diseases and insect pests, the green onion leaves may be bent. If the bent green onion leaves directly enter the conveying mechanism, the green onion leaves will be broken directly, affecting the appearance of the green onions and may lead to reduced profits from the green onions. Second, the size and thickness of the green onion leaves of different varieties of green onions may vary to a certain extent, but the conveying gap of the conveyor belt in the patent is not adjustable, and it is only applicable to the transmission of green onions within a fixed range, and has a narrow scope of application. Utility Model Content

[0005] The main technical problem to be solved by the utility model is to provide a straight plate conveying device for a green onion combine harvester, which adds a leaf sorting guide structure before conveying, solves the problem that the integrity of green onions is affected by the bending of green onion leaves, and at the same time realizes the adjustable conveying gap, which is suitable for harvesting different varieties of green onions.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0007] A straight plate conveying device for a green onion combine harvester comprises two conveying frames arranged side by side, each of the conveying frames is equipped with a conveying mechanism for clamping and conveying green onion leaves, a conveying spacing adjustment mechanism is commonly installed on the two conveying mechanisms, a leaf sorting mechanism is installed at the conveying front end of each conveying frame, a combing assembly for combing green onion roots is commonly arranged below the two conveying frames, and a soil guide plate is obliquely arranged below the combing assembly.

[0008] The following is a further optimization of the above technical solution by the utility model:

[0009] Each of the conveying mechanisms includes a vertically arranged active guide roller and a driven guide roller, which are rotatably installed on the two ends of the conveying frame respectively, each active guide roller is transmission-connected to a first hydraulic motor, each active guide roller and driven guide roller are jointly wound with a conveyor belt, and a flexible protective layer connected end to end is fixed on the outer wall of each conveyor belt, and a conveying gap is formed between the two flexible protective layers.

[0010] Further optimization: each of the leaf sorting mechanisms includes a first shaft and a second shaft that are perpendicular to each other, a first mounting frame is fixed to the front end of each conveying frame, and each first mounting frame is provided with a rotation drive assembly, which is used to drive the first shaft and the second shaft to rotate.

[0011] Further optimization: each first shaft rod is extended along the conveying direction of the green onions, each first shaft rod is spirally fixed with a spiral blade along the axial direction, the rear end of each first shaft rod is rotatably installed on the corresponding conveying frame, the front end of each first shaft rod is fixed with a conical block, each second shaft rod is arranged between the first shaft rod and the conveying frame, the upper end of each second shaft rod is rotatably installed on the conveying frame, and a number of transfer brushes are arranged on the side walls of each second shaft rod.

[0012] Further optimization: the conveying spacing adjustment mechanism includes a fixed roller assembly and a movable roller assembly that are relatively arranged. The fixed roller assembly and the movable roller assembly are respectively arranged in the two conveyor belts, and each movable roller assembly is movably installed on the corresponding conveying frame through an adjusting assembly.

[0013] Further optimization: the fixed roller assembly includes several first tensioning rollers arranged along the conveying direction of the green onions, each first tensioning roller is rotatably installed in the corresponding conveying frame, and each first tensioning roller is pressed against the inner wall of the inner part of the corresponding conveyor belt; the movable roller assembly includes several second tensioning rollers arranged along the conveying direction of the green onions, each second tensioning roller is staggered with the first tensioning roller, and each second tensioning roller is pressed against the inner wall of the inner part of the corresponding conveyor belt.

[0014] Further optimization: each of the adjustment components includes an articulated seat, one end of each articulated seat is hingedly installed on the corresponding conveying frame, each second tensioning roller is rotatably installed on the other end of the corresponding articulated seat, and a number of limit blocks are fixedly installed on the corresponding conveying frame. The position of each limit block corresponds to the position of the articulated seat, and an adjusting screw is slidably installed on each limit block. The end of the adjusting screw close to the articulated seat is fixed to the corresponding articulated seat, and a stopper is fixed to the end of the adjusting screw away from the articulated seat. A limit nut is arranged between each limit block and the articulated seat, and each limit nut is installed on the corresponding adjusting screw in a threaded connection manner, and each limit nut is pressed against the side wall of the corresponding limit block.

[0015] Further optimization: the combing assembly includes a pair of combing shafts, each combing shaft extends along the conveying direction of the green onions, a number of combing teeth are fixed on each combing shaft, a second mounting frame is installed at the bottom of each conveying frame, both ends of each combing shaft are rotatably mounted on the corresponding second mounting frame, a second hydraulic motor is fixedly mounted on each second mounting frame, and each combing shaft is fixedly connected to the motor shaft of the corresponding second hydraulic motor.

[0016] Further optimization: each of the rotating drive components includes a first sprocket fixed on the driven guide roller, each second shaft rod is fixedly mounted with a second sprocket, each second sprocket and the first sprocket are jointly wound with a transmission chain, a first bevel gear is fixed to the upper end of each second shaft rod, a second bevel gear is fixedly mounted on each first shaft rod, and each second bevel gear is meshed with the corresponding first bevel gear.

[0017] The utility model adopts the above technical solution and has the following beneficial effects: the utility model adopts the above technical solution, and a leaf sorting mechanism for sorting and guiding the onion leaves is added to the front end of the conveying mechanism. The setting of the first shaft rod and the spiral blades can sort the onion leaves that are expanded outward and bent, make them stand upright, and enter the conveying mechanism in an upright state.

[0018] The setting of the leaf sorting mechanism solves the problem of onion leaves being broken due to bending or outward expansion, thereby ensuring the integrity of the onion leaves and avoiding the situation where the profits of growers are affected due to damaged onion leaves.

[0019] At the same time, the arrangement of the spacing adjustment mechanism realizes the free adjustment of the conveying gap, so that the utility model can be suitable for the harvesting of different varieties of green onions.

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 labor.

[0022] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the utility model;

[0023] Figure 2 for Figure 1 A magnified view of the structure at center A;

[0024] Figure 3 for Figure 1 A schematic diagram of the main view;

[0025] Figure 4 for Figure 3 Schematic diagram of top view;

[0026] Figure 5 for Figure 4 A magnified view of the structure at B in the middle;

[0027] Figure 6 It is a structural schematic diagram of the leaf sorting mechanism in an embodiment of the utility model.

[0028] In the figure: 1-conveying frame; 11-first mounting frame; 12-second mounting frame; 2-conveying mechanism; 21-active guide roller; 22-driven guide roller; 23-first hydraulic motor; 24-conveying belt; 25-flexible protective layer; 26-conveying gap; 3-conveying spacing adjustment mechanism; 31-adjusting assembly; 311-hinged seat; 312-limiting block; 313-adjusting screw; 314-stopper; 315-limiting nut; 32-first tensioning Roller; 33-second tensioning roller; 4-leaf sorting mechanism; 41-first shaft; 42-second shaft; 43-rotation drive assembly; 431-first sprocket; 432-second sprocket; 433-transmission chain; 434-first bevel gear; 435-second bevel gear; 44-spiral blade; 45-conical block; 46-transfer brush; 5-combing assembly; 51-combing shaft; 52-combing teeth; 53-second hydraulic motor; 6-soil guide plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-Figure 6 As shown collectively, a straight-plate conveying device for a green onion combine harvester comprises two conveying frames 1 arranged side by side, each conveying frame 1 is equipped with a conveying mechanism 2 for clamping and conveying green onion leaves, a conveying spacing adjustment mechanism 3 is commonly installed on the two conveying mechanisms 2, a leaf sorting mechanism 4 is installed at the conveying front end of each conveying frame 1, a combing assembly 5 for combing green onion roots is commonly arranged below the two conveying frames 1, and a soil guide plate 6 is obliquely arranged below the combing assembly 5.

[0031] Among them, each conveying mechanism 2 includes a vertically arranged active guide roller 21 and a driven guide roller 22, the active guide roller 21 and the driven guide roller 22 are respectively rotatably installed on the two ends of the conveying frame 1, each active guide roller 21 is transmission-connected to a first hydraulic motor 23, each active guide roller 21 and the driven guide roller 22 are jointly wound with a conveyor belt 24, and a flexible protective layer 25 connected end to end is fixed on the outer wall of each conveyor belt 24, and a conveying gap 26 is formed between the two flexible protective layers 25.

[0032] In this embodiment, the structures and layout of the conveyor frame 1 and the conveyor belt 24 constitute the prior art and are well known to those skilled in the art, and will not be described in detail herein.

[0033] In this embodiment, the flexible protective layer 25 includes a protective bag fixed on the conveyor belt 24, and the protective bag is filled with elastic materials such as sponge.

[0034] The provision of the flexible protective layer 25 not only increases the friction between the onion leaves and the conveying mechanism 2, improving the stability of the onion leaf clamping and conveying, but also realizes flexible contact with the onion leaves, avoiding damage to the onion leaves due to excessive clamping force in hard contact conditions, thereby ensuring the integrity of the onions after harvest.

[0035] like Figure 1 , Figure 2 and Figure 6 As shown together, each leaf sorting mechanism 4 includes a first shaft rod 41 and a second shaft rod 42 that are perpendicular to each other, a first mounting frame 11 is fixed to the front end of each conveying frame 1, and each first mounting frame 11 is provided with a rotation driving assembly 43, which is used to drive the first shaft rod 41 and the second shaft rod 42 to rotate.

[0036] Each first shaft rod 41 is extended along the conveying direction of the green onions, and a spiral blade 44 is spirally fixed on each first shaft rod 41 along the axial direction. The rear end of each first shaft rod 41 is rotatably installed on the corresponding conveying frame 1, and a conical block 45 is fixed on the front end of each first shaft rod 41. Each second shaft rod 42 is arranged between the first shaft rod 41 and the conveying frame 1, and the upper end of each second shaft rod 42 is rotatably installed on the conveying frame 1. A plurality of transfer brushes 46 are arranged on the side wall of each second shaft rod 42.

[0037] In this embodiment, the spiral blade 44 includes a plurality of brushes arranged in a spiral shape.

[0038] In this embodiment, the first shaft 41 is tilted downward, so that the green onion leaves can be arranged and guided before they enter the conveying gap 26. The onion leaves that are expanding outward can be straightened inward, and the bent onion leaves can be guided to stand upright, so that all the onion leaves can enter the conveying gap 26 in an upright state.

[0039] The second shaft 42 and the transfer brush 46 are provided to connect the spiral blade 44 and the conveying mechanism 2. When the onion leaves are separated from the spiral blade 44, the two rotating transfer brushes 46 can assist in clamping and transferring the onion bulbs.

[0040] This avoids the green onions from falling off when passing through the gap between the spiral blade 44 and the conveying mechanism 2, so that the arranged green onion leaves can be neatly and orderly delivered to the conveying gap 26, ensuring the smooth progress of the green onion harvesting work.

[0041] Therefore, the setting of the leaf sorting mechanism 4 avoids the onion leaves from being broken due to factors such as bending and outward expansion of the onion leaves, thereby ensuring the integrity of the onion leaves during the transportation process, thereby achieving the effect of reducing losses and increasing revenues.

[0042] like Figure 1 and Figure 4 As shown together, the conveying spacing adjustment mechanism 3 includes a fixed roller assembly and a movable roller assembly that are relatively arranged. The fixed roller assembly and the movable roller assembly are respectively arranged in the two conveyor belts 24, and each movable roller assembly is movably installed on the corresponding conveying frame 1 through an adjustment assembly 31.

[0043] Moreover, the fixed roller assembly includes a plurality of first tensioning rollers 32 arranged along the conveying direction of the green onions, each of the first tensioning rollers 32 is rotatably installed in the corresponding conveying frame 1, and each of the first tensioning rollers 32 is pressed against the inner wall of the inner part of the corresponding conveyor belt 24. The movable roller assembly includes a plurality of second tensioning rollers 33 arranged along the conveying direction of the green onions, each of the second tensioning rollers 33 is staggered with the first tensioning rollers 32, and each of the second tensioning rollers 33 is pressed against the inner wall of the inner part of the corresponding conveyor belt 24.

[0044] As shown Figure 4 and Figure 5As shown in common, each adjustment component 31 includes an articulated seat 311, one end of each articulated seat 311 is hingedly installed on the corresponding conveying frame 1, each second tensioning roller 33 is rotatably installed on the other end of the corresponding articulated seat 311, and a plurality of limit blocks 312 are fixedly installed on the corresponding conveying frame 1, and the position of each limit block 312 corresponds to the position of the articulated seat 311, and an adjusting screw 313 is slidably installed on each limit block 312, and one end of the adjusting screw 313 close to the articulated seat 311 is fixed to the corresponding articulated seat 311, and a stopper 314 is fixed to one end of the adjusting screw 313 away from the articulated seat 311, and a limit nut 315 is arranged between each limit block 312 and the articulated seat 311, and each limit nut 315 is installed on the corresponding adjusting screw 313 in a threaded connection manner, and each limit nut 315 is pressed against the side wall of the corresponding limit block 312.

[0045] In this embodiment, the setting of the adjustment component 31 realizes the free adjustment of the conveying gap 26 between the two conveyor belts 24. The grower can adjust the size of the conveying gap 26 according to the variety of green onions planted and the maturity of the green onions, so that the utility model is suitable for harvesting green onions of most varieties and leaf thicknesses, thereby expanding the scope of application of the utility model.

[0046] like Figure 1-Figure 3 As shown together, the combing assembly 5 includes a pair of combing shafts 51, each combing shaft 51 extends along the conveying direction of the green onions, a plurality of combing teeth 52 are fixed on each combing shaft 51, a second mounting frame 12 is installed at the bottom of each conveying frame 1, both ends of each combing shaft 51 are rotatably mounted on the corresponding second mounting frame 12, a second hydraulic motor 53 is fixedly mounted on each second mounting frame 12, and each combing shaft 51 is fixedly connected to the motor shaft of the corresponding second hydraulic motor 53.

[0047] In this embodiment, the combing component 5 is used to comb the roots of green onions and clean the soil attached to the roots without the need for subsequent manual sorting.

[0048] like Figure 1 , Figure 2 and Figure 6 As shown together, each rotating drive assembly 43 includes a first sprocket 431 fixed on the driven guide roller 22, a second sprocket 432 is fixedly mounted on each second shaft 42, a transmission chain 433 is commonly wound around each second sprocket 432 and the first sprocket 431, a first bevel gear 434 is fixed on the upper end of each second shaft 42, a second bevel gear 435 is fixedly mounted on each first shaft 41, and each second bevel gear 435 is meshed with the corresponding first bevel gear 434.

[0049] The method for harvesting green onions using the utility model is as follows:

[0050] In the first step, the green onion combine harvester enters the green onion planting field and aligns the gap between the two first shafts 41 with the green onion planting ridges to be harvested.

[0051] In the second step, the first hydraulic motor 23 and the second hydraulic motor 53 are started. The first hydraulic motor 23 drives the conveyor belt 24 to move, and drives the first shaft 41 and the second shaft 42 to rotate at high speed through the rotation drive component 43. The second hydraulic motor 53 drives the combing shaft 51 and the combing teeth 52 to rotate at high speed.

[0052] In the third step, the green onion combine harvester moves forward along the ridges, and the two first shafts 41 are inserted into the two sides of the green onions to straighten the bent and outward-spreading green onion leaves, and the continuously rotating spiral blades 44 are used to transport the pulled green onions backwards. The roots of the green onions gradually separate from the soil and enter the conveying gap 26 under the transportation of the spiral blades 44 and the transfer brushes 46.

[0053] In the fourth step, the two conveyor belts 24 clamp the green onion leaves and drive the green onions to be continuously transported backwards, and then the green onions are neatly stacked through a stacking box (not shown in the figure) on the green onion combine harvester.

[0054] In the fifth step, the combing teeth 52 rotating at high speed continuously comb the roots of the green onions, clean the soil at the roots of the green onions, and comb the roots. The combed soil falls onto the soil guide plate 6, and then falls into the field along the inclined direction of the soil guide plate 6.

[0055] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A straight plate conveying device for a green onion combine harvester, comprising two conveying frames (1) arranged side by side, characterized in that: Each of the conveying frames (1) is provided with a conveying mechanism (2) for clamping and conveying green onion leaves; a conveying spacing adjustment mechanism (3) is commonly provided on the two conveying mechanisms (2); a leaf sorting mechanism (4) is commonly provided at the conveying front end of each conveying frame (1); a combing assembly (5) for combing green onion roots is commonly provided below the two conveying frames (1); and a soil guide plate (6) is obliquely provided below the combing assembly (5).

2. A straight plate conveying device for a green onion combine harvester according to claim 1, characterized in that: Each of the conveying mechanisms (2) comprises a vertically arranged active guide roller (21) and a driven guide roller (22), the active guide roller (21) and the driven guide roller (22) being rotatably mounted on two ends of the conveying frame (1), each active guide roller (21) being transmission-connected to a first hydraulic motor (23), each active guide roller (21) and the driven guide roller (22) being commonly wound with a conveying belt (24), and each conveying belt (24) being fixed with a flexible protective layer (25) connected end to end on the outer wall thereof, and a conveying gap (26) being formed between the two flexible protective layers (25).

3. A straight plate conveying device for a green onion combine harvester according to claim 2, characterized in that: Each of the leaf sorting mechanisms (4) comprises a first shaft (41) and a second shaft (42) which are perpendicular to each other, a first mounting frame (11) is fixed to the front end of each conveying frame (1), and each first mounting frame (11) is provided with a rotation drive assembly (43), and the rotation drive assembly (43) is used to drive the first shaft (41) and the second shaft (42) to rotate.

4. A straight plate conveying device for a green onion combine harvester according to claim 3, characterized in that: Each first shaft rod (41) is arranged to extend along the conveying direction of the green onions, each first shaft rod (41) is provided with a spiral blade (44) spirally fixed along the axial direction, the rear end of each first shaft rod (41) is rotatably mounted on the corresponding conveying frame (1), the front end of each first shaft rod (41) is fixed with a conical block (45), each second shaft rod (42) is arranged between the first shaft rod (41) and the conveying frame (1), the upper end of each second shaft rod (42) is rotatably mounted on the conveying frame (1), and a plurality of transfer brushes (46) are arranged on the side wall of each second shaft rod (42).

5. The straight plate conveying device for a green onion combine harvester according to claim 2, characterized in that: The conveying spacing adjustment mechanism (3) comprises a fixed roller assembly and a movable roller assembly which are arranged opposite to each other. The fixed roller assembly and the movable roller assembly are respectively arranged in two conveying belts (24). Each movable roller assembly is movably mounted on a corresponding conveying frame (1) through an adjustment assembly (31).

6. The straight plate conveying device for a green onion combine harvester according to claim 5, characterized in that: The fixed roller assembly comprises a plurality of first tensioning rollers (32) arranged along the conveying direction of the green onions, each first tensioning roller (32) is rotatably mounted in a corresponding conveying frame (1), and each first tensioning roller (32) is pressed against the inner wall of the inner part of the corresponding conveying belt (24); the movable roller assembly comprises a plurality of second tensioning rollers (33) arranged along the conveying direction of the green onions, each second tensioning roller (33) is staggered with the first tensioning roller (32), and each second tensioning roller (33) is pressed against the inner wall of the inner part of the corresponding conveying belt (24).

7. The straight plate conveying device for a green onion combine harvester according to claim 6, characterized in that: Each of the adjustment components (31) comprises an articulated seat (311), one end of each articulated seat (311) is hingedly mounted on the corresponding conveying frame (1), each second tensioning roller (33) is rotatably mounted on the other end of the corresponding articulated seat (311), a plurality of limit blocks (312) are fixedly mounted on the corresponding conveying frame (1), the position of each limit block (312) corresponds to the position of the articulated seat (311), and an adjustment screw (313) is slidably mounted on each limit block (312). One end of the joint screw (313) close to the hinge seat (311) is fixed to the corresponding hinge seat (311), and one end of the adjusting screw (313) away from the hinge seat (311) is fixed with a stopper (314). A limiting nut (315) is provided between each limiting block (312) and the hinge seat (311), and each limiting nut (315) is installed on the corresponding adjusting screw (313) in a threaded connection manner, and each limiting nut (315) is pressed against the side wall of the corresponding limiting block (312).

8. The straight plate conveying device for a green onion combine harvester according to claim 1, characterized in that: The combing assembly (5) comprises a pair of combing shafts (51), each combing shaft (51) extending along the conveying direction of the green onions, each combing shaft (51) being fixed with a plurality of combing teeth (52), a second mounting frame (12) being mounted at the bottom of each conveying frame (1), both ends of each combing shaft (51) being rotatably mounted on a corresponding second mounting frame (12), a second hydraulic motor (53) being fixedly mounted on each second mounting frame (12), and each combing shaft (51) being fixedly connected to a motor shaft of a corresponding second hydraulic motor (53).

9. The straight plate conveying device for a green onion combine harvester according to claim 4, characterized in that: Each of the rotary drive components (43) comprises a first sprocket (431) fixed on the driven guide roller (22); each second shaft (42) is fixedly mounted with a second sprocket (432); each second sprocket (432) and the first sprocket (431) are both wound with a transmission chain (433); a first bevel gear (434) is fixed to the upper end of each second shaft (42); each first shaft (41) is fixedly mounted with a second bevel gear (435); and each second bevel gear (435) is meshed with a corresponding first bevel gear (434).

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