Self-propelled double-row harvester

Abstract

The self-propelled double-row harvester comprises a harvester body, a transverse conveying device is arranged on the upper portion of the harvester body, a harvesting conveying device is arranged at the front end of the harvester body, and a bundling and collecting device is arranged on one side of the harvester body. The harvesting and conveying device comprises two clamping and conveying mechanisms and two cutting mechanisms; the distance between the two clamping and conveying mechanisms is adjusted through a first driving device, the clamping and conveying mechanisms are installed on the harvester body and connected with one clamping and conveying mechanism, and the cutting mechanism is connected to the lower rear portions of the clamping and conveying mechanisms. The clamping and conveying mechanism comprises two conveying parts arranged in parallel. Each conveying part comprises two belt supporting hubs, clamping belts wound around the belt supporting hubs and an adjusting device located between the two belt supporting hubs so as to adjust the distance between the adjacent clamping belts. The device can meet the clamping and conveying requirements after the Chinese chives with different planting densities are harvested in line spacing, can achieve harvesting of the Chinese chives with different line spacing and automatic bundling and collecting after harvesting, improves the harvesting efficiency, and reduces the production cost of the Chinese chives.

Description

Technical Field

[0001] The present invention belongs to the technical field of agricultural machinery, and particularly relates to a self-propelled two-row harvester. Background Art

[0002] Traditional leek harvesting operations are generally carried out by manually holding a knife, which has a large labor intensity, requires a large amount of labor, and has low work efficiency.

[0003] Existing leek harvesters have, to a certain extent, replaced traditional manual operations, reduced labor intensity, and improved work efficiency. However, existing leek harvesters have problems such as poor harvesting effects when the planting density of each row of leeks is different and the row spacing between multiple rows of leeks is different, and the problem of not considering automatic bundling and collection after harvesting. Summary of the Invention

[0004] To solve the defects existing in the prior art, the present invention proposes a self-propelled two-row harvester to improve the harvesting efficiency and reduce the production cost of leeks. The solution is as follows: A self-propelled two-row harvester includes a harvester main body. A transverse conveying device is provided on the upper part of the harvester main body, a harvesting conveying device is provided at the front end of the harvester main body, and a bundling and collecting device is provided on one side of the harvester main body; The harvesting conveying device includes two clamping conveying mechanisms and two cutting mechanisms. The distance between the two clamping conveying mechanisms is adjusted by a first driving device. The first driving device is installed on the harvester main body and is connected to one of the clamping conveying mechanisms. The cutting mechanism is connected to the lower rear part of the clamping conveying mechanism; The clamping conveying mechanism includes two parallel conveying components. The conveying component includes two belt support hubs, a clamping belt wound around the belt support hubs, and an adjusting device located between the two belt support hubs. The adjusting device is used to adjust the tension of the clamping belt to adjust the distance between adjacent clamping belts.

[0005] Further, the harvesting conveying device further includes a fixed base and a moving base. The two clamping conveying mechanisms are respectively connected to the fixed base and the moving base one by one. The first driving device is connected to the moving base and is used to drive the moving base to move linearly. The movement of the moving base synchronously drives the conveying component connected to the moving base to move; The conveying component further includes a belt line group support, a threshing device, and a second driving device. The threshing device is connected to one end of the belt line group support. The belt support hubs are connected to both ends of the belt line group support. The adjusting device is connected to the belt line group support. The second driving device is connected to one of the belt support hubs to drive the clamping belt to rotate along the belt support hubs and the adjusting device.

[0006] Further, the belt line group bracket includes two support plates arranged parallel up and down and a support column located between the support plates. Both ends of the belt support hub are hinged to the support plates respectively; The middle part of the connecting member is hinged to the support plate, and both ends of the connecting member are respectively hinged to the support wheels; The adjusting device includes two sets of tensioning wheel assemblies and a screw spring assembly; the tensioning wheel assemblies are connected to the belt line group bracket and located between the two belt support hubs. Each tensioning wheel assembly includes two support wheels, and connecting members are respectively connected to both ends of the two support wheels. The connecting members are hinged to the belt line group bracket; the screw spring assembly is respectively connected to the belt line group bracket and a support wheel, and the included angle between the tensioning wheel assembly and the belt line group bracket is changed by adjusting the spring force of the screw spring assembly.

[0007] Further, the screw spring assembly located below the conveying component and the screw spring assembly located above the conveying component are not on the same side; the screw spring assembly located below the conveying component is arranged oppositely to the screw spring assembly located below the paired conveying components, and the screw spring assembly located above the conveying component is arranged facing each other with the screw spring assembly located above the paired conveying components.

[0008] Further, the cutting mechanism is located behind the reel, and includes a cutter bracket, a cutter and a third driving device. The cutter bracket is connected to the belt line group bracket, the cutter is connected to the cutter bracket, and the third driving device is connected to the cutter through a coupling and is used to drive the cutter to rotate.

[0009] Further, the baling and collecting device includes: A baling and collecting bracket, connected to the harvester main body; A baler, connected to the baling and collecting bracket; A vegetable box, detachably connected to the baling and collecting bracket; A main baling frame assembly, located above the vegetable box, and includes a fixed main baling frame and a movable main baling frame rotatably connected to the fixed main baling frame; A secondary baling frame assembly, located on one side of the main baling frame assembly and having a gap with the main baling frame assembly; the secondary baling frame assembly includes a fixed secondary baling frame and a movable secondary baling frame rotatably connected to the fixed secondary baling frame; A fourth driving device, arranged on the baling and collecting bracket and connected to one end of the main baling frame assembly. The main baling frame assembly is connected to the secondary baling frame assembly through a transmission mechanism; the first driving device is used to drive the main baling frame assembly and the secondary baling frame assembly to reciprocate synchronously; The fifth driving device is arranged on the bundling and collecting bracket and is used to drive the movable main bundling frame and the movable auxiliary bundling frame to rotate synchronously; the second driving device is selectively connected to the movable main bundling frame and the movable auxiliary bundling frame through a transmission mechanism to drive the movable main bundling frame and the movable auxiliary bundling frame to rotate.

[0010] Further, the transmission mechanism includes a main shaft selectively connected to the second driving device, a first belt drive, a second belt drive, a first auxiliary shaft, and a second auxiliary shaft. The main shaft sequentially passes through the driving wheels of the first belt drive and the second belt drive. One end of the first auxiliary shaft is connected to the driven wheel of the first belt drive, and the other end is connected to the movable main bundling frame. One end of the second auxiliary shaft is connected to the driven wheel of the second belt drive, and the other end is connected to the movable auxiliary bundling frame.

[0011] Further, the fourth driving device is an electric push rod; the fifth driving device is a rotary cylinder; the connection method between the vegetable box and the bracket is a plug-in connection.

[0012] Further, the transverse conveying device includes a belt conveyor and a conveying baffle. The conveying baffle is located above the conveying belt of the belt conveyor at one end close to the bundling and collecting device, and the conveying baffle is hinged to the frame.

[0013] Further, the harvester main body includes a frame structure. A front-wheel electric push rod is installed at the front end of the frame structure. The front-wheel electric push rod is connected to the front wheels and is used to adjust the up-and-down height of the front wheels so as to control the height of the frame structure. A rear axle is installed at the bottom of the frame structure, and both ends of the rear axle are connected to the rear wheels; a height detection device is also installed at the bottom of the frame structure near the front wheels. The height detection device includes a magnetic sensor and a universal wheel.

[0014] Compared with the prior art, the advantages of the present invention are as follows: The harvesting and conveying device of the embodiment of the present invention gathers the leeks to the position of the cutter through the reel, and then gathers them between the two clamping belts of the clamping and conveying mechanism, realizing the rapid and neat cutting and conveying of the leeks. The screw spring assembly is provided to adjust the position of the tensioning wheel assembly so as to adjust the distance between the clamping belts to meet the clamping and conveying requirements after harvesting the leek row spacing with different planting densities. The movable base and the electric push rod are provided to realize changing the distance between the two clamping and conveying mechanisms so as to achieve the purpose of harvesting leeks with different row spacings.

[0015] In the embodiment of the present invention, the bundling frame of the bundling and collecting device is set as a split main bundling frame assembly and auxiliary bundling frame assembly. The main and auxiliary bundling frame assemblies are set as rotatable movable main and auxiliary bundling frames and fixed main and auxiliary bundling frames. The leeks falling from the belt conveyor are sent to the bundling frame smoothly and orderly, and the bundling frame is sent into the bundling machine by the electric push rod for bundling. Then, the main shaft of the transmission device is driven to rotate by the rotating motor, and the movable main and auxiliary bundling frames are driven to rotate through the first and second belt transmissions, so that the bundled leeks fall into the vegetable box.

[0016] In the embodiment of the present invention, components such as a magnetic sensor and a front-wheel electric push rod are provided. The magnetic sensor can collect the ground height information by the self-weight of the universal wheel and feedback it to the electric control box. Then, the electric control box controls the front-wheel electric push rod to control the height of the front wheel in the vertical direction, thereby adjusting the height of the cutting knife, and achieving the purpose of uniform cutting stubble of leeks when the terrain is uneven. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention; Figure 2 It is a schematic diagram of the main body structure of the harvester of the embodiment of the present invention; Figure 3 It is a schematic diagram of the harvesting and conveying device of the embodiment of the present invention from a certain perspective; Figure 4 It is a schematic diagram of the harvesting and conveying device of the embodiment of the present invention from another perspective; Figure 5 It is a schematic diagram of the connection structure between the fixed base and the movable base of the embodiment of the present invention; Figure 6 It is a schematic diagram of the movable base of the embodiment of the present invention; Figure 7 It is a schematic diagram of the clamping and conveying mechanism of the embodiment of the present invention from a certain perspective; Figure 8 It is a schematic diagram of the clamping and conveying mechanism of the embodiment of the present invention from another perspective; Figure 9 It is a schematic diagram of the cutting mechanism of the embodiment of the present invention; Figure 10 It is a schematic diagram of the lateral conveying device of the embodiment of the present invention; Figure 11 It is a schematic diagram of the bundling and collecting device of the embodiment of the present invention; Figure 12 It is Figure 11 a top view schematic diagram of; Figure 13 It is a schematic diagram of the bundling and collecting device of the embodiment of the present invention in another state; Figure 14 It is Figure 13 a top view schematic diagram of; Figure 15 This is a schematic side view of the bundling and collecting device according to an embodiment of the present invention in another state.

[0018] In the above figures: 100, harvesting and conveying device; 110, clamping and conveying mechanism; 111, reel; 112, clamping belt; 113, second driving device; 114, belt support hub; 115, screw spring assembly; 116, tensioning wheel assembly; 1161, support wheel; 1162, connecting piece; 117, belt line group bracket; 1171, support plate; 1172, support column; 118, fixed base; 119, moving base; 1191, sliding assembly; 1192, first driving device; 120, cutting mechanism; 121, cutting bracket; 122, cutter; 123, coupling; 124, third driving device; 200, bundling and collecting device; 210, bundling and collecting bracket; 211, groove strip; 220, bundling machine; 230, vegetable box; 231, raised strip; 240, main bundling frame assembly; 241, fixed main bundling frame; 242, movable main bundling frame; 250, auxiliary bundling frame assembly; 251, fixed auxiliary bundling frame; 252, movable auxiliary bundling frame; 253, induction sponge ring; 260, fourth driving device; 270, fifth driving device; 280, transmission mechanism; 281, main shaft; 282, first belt drive; 283, second belt drive; 284, first auxiliary shaft; 285, second auxiliary shaft; 290, support shaft; 291, bearing support seat; 300, transverse conveying device; 310, belt conveyor; 311, motor; 312, motor reducer; 313, transmission belt; 320, conveying baffle; 400, frame structure; 410, front wheel electric push rod; 420, front wheel; 430, rear axle; 440, rear wheel; 450, height detection device; 451, magnetic sensor; 452, universal wheel; 460, electric control box; 470, storage battery. Detailed implementation manners

[0019] To facilitate the understanding of the present invention by those skilled in the art, the following describes the specific implementation manners of the present invention with reference to the accompanying drawings.

[0020] As Figure 1As shown in the figure, the present invention provides a self-propelled two-row harvester, which includes a harvester main body. A transverse conveying device 300 is arranged on the upper part of the harvester main body, a harvesting and conveying device 100 is arranged at the front end of the harvester main body, and a bundling and collecting device 200 is arranged on one side of the harvester main body. When the harvester works, the leeks are harvested and clamped by the harvesting and conveying device 100 and transported to the transverse conveying device 300. After the transverse conveying device 300 accumulates a certain amount of leeks, they are transported to the bundling and collecting device 200. The bundling and collecting device 200 bundles the leeks and stores them in the vegetable box 230. The present invention can meet the clamping and transmission requirements after harvesting leeks with different planting densities and row spacings, and can harvest leeks with different row spacings, automatically bundle and collect them after harvesting, improve the harvesting efficiency, and reduce the production cost of leeks. Specifically, as Figure 2 shown, the harvester main body is set as a frame structure 400, and the frame structure 400 is formed by welding steel profiles. A fixed base 118 and a moving base 119 are installed at the front end of the frame structure 400. The fixed base 118 is welded to the frame structure 400, and the moving base 119 is slidably connected to the frame structure 400 through a sliding component 1191. The frame structure 400 is fixedly connected to the main body of the first driving mechanism by bolts, and the movable end of the first driving mechanism is connected to the moving base 119 and is used to drive the moving base 119 to move linearly. In this embodiment, the first driving mechanism is an electric push rod, and the piston rod of the electric push rod is connected to the moving base 119 by bolts. A clamping and conveying mechanism 110 is installed on each of the fixed base 118 and the moving base 119. The two clamping and conveying mechanisms 110 are arranged in parallel. The first driving device 1192 drives the moving base 119 to move, changing the distance between the two clamping and conveying mechanisms 110. In this way, the distance between the two clamping and conveying mechanisms 110 can be adjusted in real time according to the distance between two rows of leeks, and the applicability is strong.

[0021] The transverse conveying device 300 is arranged on the upper part of the frame structure 400, and a bundling and collecting bracket 210 in the bundling and collecting device 200 is welded to one end of the frame structure 400 close to the conveying direction of the transverse conveying device 300.

[0022] At the front end of the frame structure 400 and at both ends of the fixed base 118 and the moving base 119, an electric push rod 410 for the front wheel is installed. The electric push rod 410 for the front wheel is connected to the front wheel 420 through a front wheel bracket, and the electric push rod 410 for the front wheel controls the height of the front wheel 420 in the vertical direction to adjust the height of the frame structure 400. In this embodiment, as Figure 2As shown, the upper end of the front wheel bracket (not marked in the figure) is fixedly connected to the front wheel electric push rod 410. The lower end of the front wheel bracket is connected to the front wheel 420. The middle part of the front wheel bracket is also hinged to the frame structure 400. The front wheel electric push rod 410 expands and contracts to adjust the angle of the front wheel bracket, thereby realizing the adjustment of the up and down height of the front wheel 420, and further realizing the adjustment of the height between the frame structure 400 and the ground. When the height of the frame structure 400 changes, the height of the harvesting and conveying device 100 installed on the frame structure 400 changes, and the height of the cutter 122 also changes. The rear axle 430 is installed at the bottom of the frame structure 400, and both ends of the rear axle 430 are connected to the rear wheels 440. The battery 470 and the electric control box 460 are installed at the rear of the frame structure 400. The battery 470 serves as a power source and provides strong and stable power for the whole machine through the rear axle 430. The electric control box 460 serves as a control center, allowing the operator to conveniently manually control the forward speed of the double-row leek harvester, the height of the cutter 122, the conveying speed, the clamping and conveying mechanism 110, and the distance between the cutter 122. A height detection device 450 is also installed at the bottom of the frame structure 400 near the front wheel 420. The height detection device 450 includes a magnetic sensor 451 and a universal wheel 452. The magnetic sensor 451 collects the ground height information through the self-weight of the universal wheel 452, feeds it back to the electric control box 460, and then controls the front wheel electric push rod 410 through the electric control box 460 to control the height of the front wheel 420 in the vertical direction, thereby adjusting the height of the cutting mechanism 120, so as to achieve the purpose of ensuring that the leek cutting stubble is even even when the harvesting terrain is uneven.

[0023] The main components will be described below.

[0024] 1. Harvesting and conveying device 100 As Figures 3 - 6 shown, the harvesting and conveying device 100 includes two clamping and conveying mechanisms 110, two cutting devices, a fixed base 118 and a moving base 119. One cutting device is installed at the lower part of one clamping and conveying mechanism 110. The fixed base 118 is fixedly connected to the harvester main body, and the moving base 119 is slidably connected to the harvester main body. The two clamping and conveying mechanisms 110 are installed on the tops of the fixed base 118 and the moving base 119 one by one.

[0025] Specifically, the clamping and conveying mechanism 110 includes two parallel conveying components. As Figure 7 shown, the conveying component includes a belt line group bracket 117, a reel 111, a belt support hub 114, a clamping belt 112, a second driving device 113 and an adjusting device for adjusting the tension of the clamping belt 112.

[0026] Specifically, the reel 111 is connected to one end of the belt line group bracket 117 by screws. The belt line group bracket 117 includes two parallel support plates 1171 arranged vertically and support columns 1172 located between the support plates 1171. Both ends of the belt support hub 114 are hinged to the upper and lower support plates 1171 respectively.

[0027] The number of belt support hubs 114 is two, which are installed at both ends of the belt line group bracket 117. The adjusting device is located between the belt support hubs 114 and is connected to the belt line group bracket 117. The clamping belt 112 is wound around the belt support hubs 114. The second driving device 113 is connected to one belt support hub 114 to drive the clamping belt 112 to rotate along the belt support hubs 114 and the adjusting device. In this way, it can be adjusted adaptively according to the planting density of each row of leeks.

[0028] In this embodiment, the second driving device 113 is a DC reduction motor 311. The DC reduction motor 311 is fixedly installed on the support plate 1171 of the belt line group bracket 117. The output shaft of the DC reduction motor 311 is connected to one end of the belt support hub 114 to drive the belt support hub 114 to rotate synchronously, thereby driving the clamping belt 112 to rotate.

[0029] Specifically, as Figure 8 shown, the adjusting device includes two sets of tension pulley assemblies 116 and a screw spring assembly 115. The tension pulley assemblies 116 are connected to the belt line group bracket 117 and are located between the two belt support hubs 114. The tension pulley assembly 116 includes two support wheels 1611. Connecting pieces 1162 are respectively connected to both ends of the two support wheels 1611. The connecting pieces 1162 are hinged to the support plates 1171 of the belt line group bracket 117. The screw spring assembly 115 is respectively connected to the support plate 1171 and a support wheel 1611. By adjusting the spring force of the screw spring assembly 115, the included angle between the tension pulley assembly 116 and the belt line group bracket 117 is changed. In this embodiment, the screw spring assembly 115 is a purchased part. Rotate the adjusting screw, and the screw compresses or releases the elastic force of the spring to achieve the adjustment function. The tension pulley assembly 116 is hinged on the nut column of the screw spring assembly 115.

[0030] The middle of the connecting piece 1162 is hinged to the support plate 1171, and both ends of the connecting piece 1162 are respectively hinged to the support wheels 1611. In this embodiment, the connecting piece 1162 is a V-shaped plate. The tip of the V-shaped plate is hinged to the support plate 1171 through a pin shaft, and the two rod parts at the open end of the V-shaped plate are respectively connected to the ends of the support wheels 1611.

[0031] For better adjustment effect, the screw spring assembly 115 located at the lower part of the conveying component and the screw spring assembly 115 located at the upper part of the conveying component are not on the same side; the screw spring assembly 115 located at the lower part of the conveying component and the screw spring assembly 115 at the lower part of the conveying component used in pair are arranged opposite to each other, and the screw spring assembly 115 located at the upper part of the conveying component and the screw spring assembly 115 at the upper part of the conveying component used in pair are arranged opposite to each other.

[0032] like Figure 9 As shown, the cutting mechanism 120 is located at the rear of the tiller 111, and includes a cutting bracket 121, a cutting knife 122 and a third driving device 124. The cutting bracket 121 is fixedly connected to the belt line group bracket 117 by screws, and the cutting knife 122 is arranged at the bottom of the cutting knife 122 bracket. The third driving device 124 is fixed to the cutting knife 122 bracket by bolts. In this embodiment, the third driving device 124 uses a motor, which is connected to the cutting knife 122 through a coupling and is used to drive the cutting knife 122 to rotate. The coupling transmits the motor power in the horizontal direction to the cutting knife in the vertical direction.

[0033] The harvesting and conveying device 100 of the present invention is different from the harvesting and conveying device of the existing harvester. The relative height between the cutter and the ridge surface of the existing harvester needs to be manually adjusted in advance, and the cutter height cannot be automatically adjusted according to the height fluctuation of the ridge surface during the harvesting process; the existing clamping and conveying mechanism adopts a twisting support belt method, resulting in a long clamping and conveying distance and a large harvester volume; the existing double-row harvester harvesting and conveying device is fixedly installed and cannot automatically adjust the row spacing, which reduces the adaptability of the equipment. The harvester of the present invention has the advantages of compact structure, adaptive adjustment of cutter height, and strong agronomic adaptability, and is particularly suitable for small plot operations in greenhouse facilities.

[0034] Working process of the harvesting and conveying device 100: When the harvester moves forward, the reeder 111 gathers the leeks to the position of the cutter 122 to ensure that the leeks can be cut neatly. The leeks harvested during the harvester's movement are gathered and supported until they reach the clamping conveying mechanism 110. The second drive device 113 provides a power source for the transmission belt, drives the belt support hub 114 to rotate, thereby driving the clamping belt 112 to rotate, and drives the harvested leeks to enter the next process smoothly. Before the harvester works, the travel of the screw on the screw spring assembly 115 on the nut column can be adjusted to change the spacing of the support wheel 1161 of the tension wheel assembly 116 to control the width of the clamping belt, thereby changing the clamping degree and realizing adaptive adjustment according to the planting density of each row of leeks. When it is found that the planting gap between adjacent rows of leeks changes, the first drive device 1192 drives the mobile base 119 to move to a suitable position to realize adaptive adjustment according to the row spacing between multiple rows of leeks.

[0035] 2. Horizontal conveying device 300 As shown Figure 10 in the figure, the horizontal conveying device 300 includes a belt conveyor 310 and a conveying baffle 320. The conveying baffle 320 is located above the transmission belt 313 of the belt conveyor 310 at one end close to the bundling and collecting device 200, and the conveying baffle 320 is hinged to the frame. The belt conveyor 310 is a prior art, including a belt rotating roller, a transmission belt wound around the belt rotating roller, a motor 311 for driving the belt rotating roller to rotate, and a motor reducer 312. The conveying baffle 320 is made of a lightweight material, such as a rubber plate or a plastic plate. When a certain amount of leeks accumulates on the belt conveyor 310, the leeks on the transmission belt 313 push the conveying baffle 320 to rotate and open, and the leeks fall into the main bundling frame assembly 240 and the auxiliary bundling frame assembly 250 of the bundling and collecting device 200.

[0036] 3. The bundling and collecting device 200 As shown Figures 11 - 15 in the figure, the bundling and collecting device 200 includes a bundling and collecting bracket 210, a bundling machine 220, a vegetable box 230, a main bundling frame assembly 240, an auxiliary bundling frame assembly 250, a fourth driving device 260, and a fifth driving device 270.

[0037] In this embodiment, the bundling and collecting bracket 210 is connected to the frame structure 400 by welding, and the bundling machine 220 and the bundling and collecting bracket 210 are bolted together by a connecting piece 1162. The vegetable box 230 is detachably connected to the bundling and collecting bracket 210 to facilitate the disassembly of the vegetable box 230.

[0038] The main bundling frame assembly 240 and the auxiliary bundling frame assembly 250 are used as a whole, and have two functions. One is to receive the leeks after the previous process of the harvester, and the second is to bundle the leeks. A gap is formed between the main bundling frame assembly 240 and the auxiliary bundling frame assembly 250 for bundling the leeks. When the main bundling frame assembly 240 and the auxiliary bundling frame assembly 250 move synchronously to the bundling machine 220 and the gap corresponds to the working area of the bundling machine 220, the bundling machine 220 works to bundle the leeks.

[0039] The main bundling frame assembly 240 is located above the vegetable box 230 and includes a fixed main bundling frame 241 and a movable main bundling frame 242 rotatably connected to the fixed main bundling frame 241. The auxiliary bundling frame assembly 250 is located on one side of the main bundling frame assembly 240 and there is a gap in the main bundling frame assembly 240. The auxiliary bundling frame assembly 250 includes a fixed auxiliary bundling frame 251 and a movable auxiliary bundling frame 252 rotatably connected to the fixed auxiliary bundling frame 251. This gap is used for the subsequent bundling machine 220 to bundle the leeks.

[0040] The fourth driving device 260 is installed on the bundling and collecting bracket 210 and is connected to one end of the main bundling frame assembly 240. The main bundling frame assembly 240 is connected to the auxiliary bundling frame assembly 250 through a transmission mechanism 280, and is used to drive the main bundling frame assembly 240 and the auxiliary bundling frame assembly 250 to reciprocate synchronously. In this embodiment, the first driving device 1192 is an electric push rod.

[0041] The fifth driving device 270 is arranged on the bundling and collecting bracket 210 and is used to drive the movable main bundling frame 242 and the movable auxiliary bundling frame 252 to rotate synchronously. After bundling is completed, when the fourth driving device 260 resets to the shortest stroke, the fifth driving device 270 is connected to the movable main bundling frame 242 and the movable auxiliary bundling frame 252 through the transmission mechanism 280 to drive the movable main bundling frame 242 and the movable auxiliary bundling frame 252 to rotate synchronously. In this embodiment, the fifth driving device 270 is a rotary cylinder, which is a purchased part and realizes a rotation angle of 90 degrees.

[0042] Specifically, the transmission mechanism 280 includes a main shaft 281 selectively connected to the fifth driving device 270, a first belt drive 282, a second belt drive 283, a first auxiliary shaft 284, and a second auxiliary shaft 285. The main shaft 281 sequentially passes through the driving wheels of the first belt drive 282 and the second belt drive 283. One end of the first auxiliary shaft 284 is connected to the driven wheel of the first belt drive 282 and the other end is connected to the movable main bundling frame 242. One end of the second auxiliary shaft 285 is connected to the driven wheel of the second belt drive 283 and the other end is connected to the movable auxiliary bundling frame 252. The electric push rod is sequentially connected to the first belt drive 282 and the fixed main bundling frame 241. The bundling and collecting device 200 further includes a support shaft 290. One end of the support shaft 290 is connected to a bearing support 291, and the bearing support 291 is fixedly installed on the bracket by bolts. The other end of the support shaft 290 is sequentially connected to the second belt drive 283 and the fixed auxiliary bundling frame 251.

[0043] Specifically, the vegetable box 230 and the bundling and collecting bracket 210 are connected in a plug-in manner, and mutually matching groove strips 211 and protruding strips 231 are respectively provided on the vegetable box 230 and the bundling and collecting bracket 210.

[0044] The bundling machine 220 is a purchased part. A photoelectric sensor is arranged on the bundling machine 220. When there is vegetables in the working area of the bundling machine 220, the photoelectric sensor emits a signal to the internal controller of the bundling machine 220, and the bundling machine 220 performs bundling work.

[0045] More specifically, a main shaft 281 bracket is fixed on the baling collection bracket 210 by bolts. The main shaft 281 bracket is a bearing support seat 291 for supporting the main shaft 281, and the main shaft 281 can rotate relative to the main shaft 281 bracket. The left end of the main shaft 281 is fixed with a driving pulley of the second belt drive 283 through a key shaft. The driving pulley of the second belt drive 283 drives a driven pulley to rotate through a synchronous belt of the second belt drive 283. The driven pulley drives the movable pair baling frame 252 to rotate. An induction sponge ring 253 is pasted on the movable pair baling frame 252. The movable pair baling frame 252 is connected to the driven pulley of the second belt drive 283 through a key shaft. The second housing is fixedly connected to the fixed pair baling frame 251 by bolts; the right end of the main shaft 281 is fixed with a driving pulley of the first belt drive 282 through a key shaft. The driving pulley of the first belt drive 282 is installed in the first housing. The driving pulley of the first belt drive 282 drives a driven pulley to rotate through a synchronous belt of the first belt drive 282. The driven pulley drives the driving movable main baling frame 242 to rotate. The movable main baling frame 242 is fixed in the first housing by a key connection to the driven pulley of the first belt drive 282. The first housing is bolted to the fixed main baling frame 241. A rotary cylinder base is fixedly installed on the baling collection bracket 210. The rotary cylinder base supports the rotary cylinder and the electric push rod. The movable end of the electric push rod is fixedly connected to the first housing. The rotary cylinder is selectively connected to the right end of the main shaft 281. The vegetable box 230 is detachable and used for loading the baled leeks. The electric push rod pushes the first housing to perform a linear reciprocating motion. The first housing drives the fixed main baling frame 241, the movable main baling frame 242, and the driving and driven pulleys of the first belt drive 282 to perform a linear reciprocating motion. The driving pulley of the first belt drive 282 is connected to the main shaft 281 through a key to drive the main shaft 281 to perform a linear reciprocating motion. The main shaft 281 then drives the second housing, the movable pair baling frame 252, and the fixed pair baling frame 251 to perform a linear reciprocating motion. When the electric push rod synchronously pushes the main baling frame assembly 240 and the sub-baling frame assembly 250 to the baling position of the baling machine 220 (refer to Figure 11 , 12 ), the induction sponge ring 253 on the movable pair baling frame 252 continuously triggers the photoelectric sensor on the baling machine 220, so that the baling machine 220 bales the leeks. After the baling machine 220 bales, it brings the baling frame back to the initial position (refer to Figure 13 , 14), during this process, the induction sponge ring 253 moves away from above the photoelectric inductor to avoid secondary triggering. When the leek bundling is completed and the bundling frame returns to the initial position, the slewing cylinder drives the main shaft 281 to rotate through the shaft hole fit with the main shaft 281 via the coupling. The main shaft 281 drives the driven wheel of the first belt drive 282 on the movable main bundling frame 242 through the synchronous belt of the first belt drive 282 to make the movable main bundling frame 242 rotate. The main shaft 281 realizes the transmission of rotation through the driven wheel of the second belt drive 283, driving the movable auxiliary bundling frame 252 to rotate. The slewing cylinder drives the movable main bundling frame 242 and the movable auxiliary bundling frame 252 to rotate synchronously through the main shaft 281 and the two first and second belt drives (see Figure 15 ), the rotation angle of the slewing cylinder is 90 degrees, releasing the bundled leeks, and the slewing cylinder rotates back to the initial position.

[0046] As Figure 14 shown, the gap between the auxiliary bundling frame assembly 250 and the main bundling frame assembly 240 is represented by d, and the size of the gap d is approximately the same as the working area width of the bundling machine 220.

[0047] Different from the existing bundling and collecting device that requires manual assistance during operation, resulting in limited improvement in operation efficiency, the bundling and collecting device of the present invention has the functions of automatic bundling and collecting, improving the equipment harvesting efficiency and automation level.

[0048] The working process of the bundling and collecting device 200: Initial position: Both the main bundling frame assembly 240 and the auxiliary bundling frame assembly 250 are located above the vegetable box 230. At this time, the electric push rod retracts, the slewing cylinder is connected to the main shaft 281, and the slewing cylinder is in a non-working state; Bundling position: The electric push rod extends to drive the main bundling frame assembly 240 and the auxiliary bundling frame assembly 250 to move towards the bundling machine 220. The main shaft 281 is disengaged from the connection of the slewing cylinder. When the gap corresponds to the working area of the bundling machine 220, the bundling machine 220 works; Reset to the initial position and perform the unloading action. The electric push rod retracts, the main shaft 281 is connected to the slewing cylinder, the slewing cylinder works, and the slewing cylinder rotates to drive the movable main bundling frame 242 and the movable auxiliary bundling frame 252 to rotate synchronously. The bundled leeks are unloaded into the vegetable box 230. When the vegetable box 230 is full, pull out the vegetable box 230 to take out the leeks for transfer.

[0049] Through the mutual cooperation of the above various components of the self-propelled two-row harvester of the present invention, the self-propelled two-row harvester of the present invention can make adaptive adjustments according to different planting densities of leeks, different planting gaps between multiple rows of leeks, and different harvesting terrains, effectively improving the harvesting effect; and can perform bundling and collecting in real time after harvesting, greatly reducing the labor intensity.

[0050] The working process of the self-propelled two-row harvester of the present invention is as follows: First, start the self-propelled two-row harvester and move forward. The reel 111 gathers the leeks to the position of the cutter 122 to ensure that the leeks can be cut neatly. The harvested leeks during the forward movement of the harvester are gathered to the clamping and conveying mechanism 110. The second driving device 113 (a micro DC reduction motor) drives the rear belt support hub 114 to rotate, thereby driving the clamping belt 112 to smoothly convey the harvested leeks to the rear conveyor. The width between the clamping belts 112 can be adjusted by the adjusting screw spring assembly 115 to adapt to the clamping and transmission requirements after harvesting leeks with different planting densities. The two groups of clamping and conveying mechanisms 110 can control the telescopic movement of the first driving device 1192 through the electric control box 460 to control the movement of the moving base 119, thereby changing the distance between the clamping and conveying mechanisms 110 to achieve the purpose of harvesting leeks with different row spacings. The self-weight of the universal wheel 452 enables the magnetic sensor 451 to collect height data of the driving ground, measure the height for positioning, and thus control the front-wheel electric push rod 410 to adjust and control the height of the cutting mechanism 120. The belt conveyor 310 realizes the continuous conveyance of leeks. The conveying baffle 320 ensures that the leeks fall into the split bundling frame smoothly and orderly during the conveyance process. The fourth driving device 260, that is, the electric push rod, synchronously sends the split bundling frame, that is, the main bundling frame assembly 240 and the auxiliary bundling frame assembly 250, above the bundling machine 220 for bundling. After bundling, it returns to the starting point. Then, the fifth driving device 270, that is, the rotary motor, drives the first and second belt drives to rotate synchronously, driving the movable main bundling frame 242 and the movable auxiliary bundling frame 252 to rotate synchronously, so that the bundled leeks fall into the vegetable box 230. The row spacing between leeks can be adjusted by driving the movement of the moving base 119 by the first driving device 1192 to be applicable to harvesting different planting row spacings. The clamping width between the same clamping and conveying mechanisms 110 can be adjusted by the adjusting screw spring assembly 115 to adapt to the clamping and transmission requirements after harvesting leeks with different planting densities.

[0051] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A self-propelled two-row harvester, characterized in that, It includes a harvester main body, a transverse conveying device (300) is arranged on the upper part of the harvester main body, a harvesting and conveying device (100) is arranged at the front end of the harvester main body, and a baling and collecting device (200) is arranged on one side of the harvester main body; The harvesting and conveying device (100) includes two clamping and conveying mechanisms (110) and two cutting mechanisms (120). The distance between the two clamping and conveying mechanisms (110) is adjusted by a first driving device (1192). The first driving device (1192) is installed on the harvester main body. The first driving device (1192) is connected to one of the clamping and conveying mechanisms (110). The cutting mechanism (120) is connected to the rear lower part of the clamping and conveying mechanism (110). The clamping and conveying mechanism (110) includes two parallel conveying components. The conveying component includes two belt support hubs (114), a clamping belt (112) wound around the belt support hubs (114), and an adjusting device located between the two belt support hubs (114). The adjusting device is used to adjust the tension of the clamping belt (112) to adjust the distance between adjacent clamping belts (112).

2. The self-propelled two-row harvester according to claim 1, wherein The harvesting and conveying device (100) further includes a fixed base (118) and a moving base (119). The two clamping and conveying mechanisms (110) are respectively connected to the fixed base (118) and the moving base (119). The first driving device (1192) is connected to the moving base (119) and is used to drive the moving base (119) to move linearly. The movement of the moving base (119) synchronously drives the conveying component connected to the moving base (119) to move; The conveying component further includes a belt line group support (117), a reel (111), and a second driving device (113). The reel (111) is connected to one end of the belt line group support (117). The belt support hubs (114) are connected to both ends of the belt line group support (117). The adjusting device is connected to the belt line group support (117). The second driving device (113) is connected to one of the belt support hubs (114) to drive the clamping belt (112) to rotate along the belt support hub (114) and the adjusting device.

3. The self-propelled two-row harvester according to claim 2, characterized in that, The belt line group support (117) includes two parallel upper and lower support plates (1171) and a support column (1172) located between the support plates (1171). Both ends of the belt support hub (114) are hinged to the support plates (1171); The middle of the connecting piece (1162) is hinged to the support plate (1171), and both ends of the connecting piece (1162) are respectively hinged to the support wheels (1611); The adjusting device includes two sets of tension pulley assemblies (116) and a screw spring assembly (115); the tension pulley assemblies (116) are connected to the belt line group bracket (117) and are located between the two belt support hubs (114). The tension pulley assembly (116) includes two support wheels (1611), and connecting pieces (1162) are respectively connected to both ends of the two support wheels (1611). The connecting pieces (1162) are hinged to the belt line group bracket (117); the screw spring assembly (115) is respectively connected to the belt line group bracket (117) and a support wheel (1611), and the included angle between the tension pulley assembly (116) and the belt line group bracket (117) is changed by adjusting the spring force of the screw spring assembly (115).

4. The self-propelled two-row harvester according to claim 3, characterized in that, The screw spring assembly (115) located at the lower part of the conveying component and the screw spring assembly (115) located at the upper part of the conveying component are not on the same side; the screw spring assembly (115) located at the lower part of the conveying component is arranged opposite to the screw spring assembly (115) at the lower part of the paired conveying components, and the screw spring assembly (115) located at the upper part of the conveying component is arranged facing each other with the screw spring assembly (115) at the upper part of the paired conveying components.

5. The self-propelled two-row harvester according to claim 2, characterized in that, The cutting mechanism (120) is located behind the reel (111) and includes a cutter (122) bracket, a cutter (122), and a third driving device (124). The cutter (122) bracket is connected to the belt line group bracket (117), the cutter (122) is connected to the cutter (122) bracket, and the third driving device (124) is connected to the cutter (122) through a coupling (123) and is used to drive the cutter (122) to rotate.

6. The self-propelled two-row harvester according to claim 1, characterized in that, The baling and collecting device (200) includes: a baling and collecting bracket (210), connected to the harvester main body; a baler (220), connected to the baling and collecting bracket (210); a vegetable box (230), detachably connected to the baling and collecting bracket (210); a main baling frame assembly (240), located above the vegetable box (230), including a fixed main baling frame (241) and a movable main baling frame (242) rotatably connected to the fixed main baling frame (241); a secondary baling frame assembly (250), located on one side of the main baling frame assembly (240) and having a gap with the main baling frame assembly (240); the secondary baling frame assembly (250) includes a fixed secondary baling frame (251) and a movable secondary baling frame (252) rotatably connected to the fixed secondary baling frame (251); a fourth driving device (260), arranged on the baling and collecting bracket (210) and connected to one end of the main baling frame assembly (240). The main baling frame assembly (240) is connected to the secondary baling frame assembly (250) through a transmission mechanism (280); the first driving device (1192) is used to drive the main baling frame assembly (240) and the secondary baling frame assembly (250) to move reciprocally synchronously; The fifth driving device (270) is arranged on the bundling and collecting bracket (210) and is used to drive the movable main bundling frame (242) and the movable auxiliary bundling frame (252) to rotate synchronously; the second driving device (113) is selectively connected to the movable main bundling frame (242) and the movable auxiliary bundling frame (252) through a transmission mechanism (280) to drive the movable main bundling frame (242) and the movable auxiliary bundling frame (252) to rotate.

7. The self-propelled two-row harvester according to claim 6, characterized in that, The transmission mechanism (280) includes a main shaft (281) selectively connected to the second driving device (113), a first belt drive (282), a second belt drive (283), a first auxiliary shaft (284), and a second auxiliary shaft (285). The main shaft (281) sequentially passes through the driving wheels of the first belt drive (282) and the second belt drive (283). One end of the first auxiliary shaft (284) is connected to the driven wheel of the first belt drive (282), and the other end is connected to the movable main bundling frame (242). One end of the second auxiliary shaft (285) is connected to the driven wheel of the second belt drive (283), and the other end is connected to the movable auxiliary bundling frame (252).

8. The self-propelled two-row harvester according to claim 6, characterized in that, The fourth driving device (260) is an electric push rod; the fifth driving device (270) is a rotary cylinder; the connection mode between the vegetable box (230) and the bracket is a plug-in connection.

9. The self-propelled two-row harvester according to claim 1, characterized in that, The transverse conveying device (300) includes a belt conveyor (310) and a conveying baffle (320). The conveying baffle (320) is located above the transmission belt (313) of the belt conveyor (310) at one end close to the bundling and collecting device (200), and the conveying baffle (320) is hinged to the frame.

10. A self-propelled two-row harvester according to claim 1, characterized in that, The harvester main body includes a frame structure (400). The front end of the frame structure (400) is equipped with a front-wheel electric push rod (410). The front-wheel electric push rod (410) is connected to the front wheel (420) and is used to adjust the up-and-down height of the front wheel (420) so as to control the height of the frame structure (400). The bottom of the frame structure (400) is equipped with a rear axle (430), and both ends of the rear axle (430) are connected to the rear wheels (440); a height detection device (450) is also installed at the bottom of the frame structure (400) near the front wheel (420). The height detection device (450) includes a magnetic sensor (451) and a universal wheel (452).

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