Horizontal leaf-gathering mustard harvester

Abstract

This invention belongs to the field of agricultural automation equipment and discloses a horizontal mustard leaf harvester, comprising: a frame, a walking chassis mounted on the frame, a flexible leaf-gathering device, a cutting device, a conveying device, and a collection box; the flexible leaf-gathering device is installed at the front end of the frame and includes a mounting frame parallel to the ground, two sets of pulleys fixed to the mounting frame and spaced apart, and two sets of flexible leaf-gathering units encircled on the belts of the pulleys, the width of the flexible leaf-gathering units being greater than the width of the belts, the two sets of flexible leaf-gathering units being driven by the two sets of pulleys, and using the opposite sides of the two sets of flexible leaf-gathering units to gather the mustard leaves; the cutting device is parallel to the ground and positioned between the front and rear pulleys of the two sets of pulleys; the conveying device is fixed to the frame by a bracket, the front end of the conveying device is connected to the mounting frame, and the conveying device is inclined as a whole; the collection box is fixed to the rear end of the conveying device. The above device has a simple structure and a high harvesting rate.

Description

Technical Field

[0001] This invention belongs to the field of agricultural automation equipment, and in particular relates to a horizontal mustard harvester. Background Technology

[0002] Mustard greens (scientific name: *Brassica juncea* (L.) Czern. et Coss.) belong to the Brassicaceae family. Mustard greens are a vegetable native to China, with a long history, numerous varieties, and widespread cultivation. They are mainly distributed in the Yangtze River basin and southwestern regions. China is one of the centers of origin for mustard greens. Mustard greens are divided into four main categories and 16 varieties, with many variations. The stems and leaves are the main edible parts. The rootstock is relatively robust, with tuberous stems exhibiting significant differences in size and shape. The leaves are also relatively large. After maturity, the leaves lie flat on the ground. Currently, mustard green harvesting is generally done manually, including cutting roots, removing leaves, and transportation, which is extremely labor-intensive.

[0003] CN110731161B discloses a vegetable cleaning device for a multi-row combined harvester of mustard greens. The machine's frame column has a hinged leaf-clamping and lifting conveyor mechanism, which is composed of a loop conveyor belt. The input and output ends of the leaf-clamping and lifting conveyor mechanism are respectively equipped with a root-cutting mechanism and a leaf-cutting mechanism. Below the leaf-cutting mechanism is a leaf-removing mechanism. Above the rubber rollers of the leaf-removing mechanism is a fork conveyor chain that moves axially towards the output port along the rubber rollers. Below the output port is a flat belt lifting device, and below the lifting device is a receiving box. While this harvester's root-cutting mechanism uses a clamping and pulling device, direct cutting of mustard green stems, due to their large size and shape variations, easily leads to misalignment, waste of stems and leaves, and even harvest failure. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the background art above, and to provide a horizontal leaf-gathering mustard harvester with a simple structure and high harvest rate.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by the present invention is: a horizontal leaf-gathering mustard harvester, comprising: a frame, on which a walking chassis, a flexible leaf-gathering device, a cutting device, a conveying device, and a collection and storage box are provided; the walking chassis is used to drive the movement of the whole machine;

[0006] The flexible leaf-gathering device is installed at the front end of the frame. The flexible leaf-gathering device includes a mounting frame parallel to the ground, two sets of pulleys fixed on the mounting frame and spaced apart, and two sets of flexible leaf-gathering units encircled on the belt of the pulleys. The width of the flexible leaf-gathering unit is greater than the width of the belt. The two sets of flexible leaf-gathering units are driven by the two sets of pulleys and the mustard leaves are gathered up by the opposite sides of the two sets of flexible leaf-gathering units.

[0007] The cutting device is parallel to the ground and is located between the front and rear pulleys of two sets of pulleys, used to cut the stems of mustard greens after the leaves have been gathered.

[0008] The conveying device is fixed to the frame by a bracket. The front end of the conveying device is connected to the mounting frame, and the conveying device is tilted as a whole. The collection box is fixed to the tail end of the conveying device. After the cut mustard greens are conveyed to the top by the conveyor belt, they automatically fall into the collection box.

[0009] In one embodiment, the flexible leaf-gathering unit includes a plurality of leaf-gathering blades, which are formed by rolling up a flexible strip to form an upper blade and a lower blade, with a hollow structure between the upper blade and the lower blade.

[0010] In one embodiment, the two sets of pulleys include a pair of pulleys and a belt encircling the pulleys, with multiple leaf blades on the belt overlapping each other, and the ends of the multiple leaf blades away from the belt being placed on the ground.

[0011] In one embodiment, the upper blade and the lower blade have the same shape, and the width of the front and rear ends of the upper blade and the lower blade is smaller than the width in the middle, and the edges of the upper blade and the lower blade are arc-shaped.

[0012] In one embodiment, the blades of the leaflet are made of PVC.

[0013] In one embodiment, the two sets of pulleys include a pair of pulleys and a belt encircling the pulleys. The pair of pulleys includes a front pulley and a rear pulley. The rear pulley is close to the conveying device. The belt includes a parallel upper belt and a lower belt. The cutting device is disposed between the upper belt and the lower belt and is close to the rear pulley.

[0014] In one embodiment, the cutting device includes a cutting blade and a motor, the motor being fixed on a mounting bracket and used to drive the cutting blade to move, the cutting blade being a reciprocating cutting blade.

[0015] In one embodiment, the conveying device includes a conveyor belt, the width of which is greater than the width of the two sets of pulleys.

[0016] In one embodiment, the tail end of the mounting frame is hinged to the two side frames of the conveying device, and the front end of the mounting frame is connected to the top of the frame of the conveying device via a reinforcing arm.

[0017] In one embodiment, the pulley assembly is driven by a motor fixed to a mounting bracket.

[0018] In one embodiment, compared with the prior art, the beneficial effects of the present invention are as follows: When the harvester is working, the mustard plants are first aligned in rows. The machine frame, driven by the chassis, moves forward while the flexible leaf-gathering device rotates with the rotation of two sets of pulleys. The flexible leaf-gathering unit on the belt lifts the mustard leaves from bottom to top, completing the leaf-gathering operation and exposing the rootstock for cutting by the cutting device located between the belts. After cutting, the mustard is inverted on the conveyor and transported to the top by the conveyor belt. Finally, it falls freely into the collection box under gravity, completing the mustard harvesting operation. The flexible leaf-gathering device not only gathers the mustard leaves, facilitating subsequent cutting operations, but also allows for the harvesting of valuable stems and leaves after cutting, eliminating the need to pull the mustard out, simplifying the harvesting structure, and improving the harvest rate and harvesting effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a horizontal leaf-gathering mustard harvester according to one embodiment;

[0021] Figure 2 A schematic diagram of the flexible leaf-gathering device of a horizontal leaf-gathering mustard harvester according to one embodiment.

[0022] Figure 3 This is a schematic diagram of the flexible leaf-gathering device of a horizontal leaf-gathering mustard harvester according to another embodiment. Detailed Implementation

[0023] To facilitate understanding of the present invention, the present invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of protection of the present invention is not limited to the following specific embodiments.

[0024] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of the invention.

[0025] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0026] Please see Figure 1-3 One embodiment of the horizontal leaf-gathering mustard harvester mainly includes a frame 1, a walking chassis 2 mounted on the frame 2, a flexible leaf-gathering device 3, a cutting device 4, a conveying device 5, and a collection and storage box 6.

[0027] The walking chassis 2 includes a chassis 21 set parallel to the ground and a wheel set 22 mounted on the chassis 21. The chassis 21 is equipped with a whole machine drive device for driving the whole machine to move.

[0028] The flexible leaf-gathering device 3 is installed at the front end of the frame 1. The flexible leaf-gathering device 3 includes a mounting frame 31 parallel to the ground, two sets of pulleys 32 fixed to the mounting frame 31 and spaced apart, two sets of flexible leaf-gathering units 33 encircling the belts 321 of the pulley sets 32, and a belt-driven motor 34 that drives the two sets of pulleys 32. The width of the flexible leaf-gathering unit 33 is greater than the width of the belt 321. The two sets of flexible leaf-gathering units 33 are driven by the two sets of pulleys 32, using their opposing sides to gather the mustard green leaves. Since the width of the flexible leaf-gathering unit 33 is greater than the width of the belt 321, when the machine moves forward, the opposing sides of the flexible leaf-gathering units 33 contact the mustard green stems and leaves. Using the rotation of the two sets of pulleys 32 and the forward motion of the machine, the flexible leaf-gathering units 33 gather the mustard green stems and leaves.

[0029] Specifically, in one embodiment, the mounting frame 31 is a rectangular frame structure, including parallel horizontal and vertical bars, and is hinged to the frame 1. Preferably, the tail end of the mounting frame 31 is hinged to the two side frames of the conveying device 5, and the front end of the mounting frame 31 is connected to the top of the frame of the conveying device 5 through a reinforcing arm 311. Connecting the front end of the mounting frame 31 to the top of the frame of the conveying device 5 through the reinforcing arm 311 improves the structural stability of the mounting frame 31, making it less prone to deflection and tilting during operation, without increasing structural complexity.

[0030] Two sets of pulley groups 32 are symmetrically arranged. Each set of pulley groups 32 includes a pair of pulleys and a belt 321 encircling the pulleys. The pair of pulleys includes a front pulley 322 and a rear pulley 323, which are mounted on the crossbar of the mounting frame 31. The belt drive motor 34 is fixed to the outside of the vertical bar to prevent interference with the flexible leaf unit 33. Fixing the belt drive motor 34 to the outside of the vertical bar simplifies the structure.

[0031] The flexible leaf-gathering unit 33 includes multiple leaf-gathering blades 331. Specifically, the multiple leaf-gathering blades 331 are overlapped on the belt 321. Preferably, the multiple leaf-gathering blades 331 are evenly spaced on the belt 321. The ends of the multiple leaf-gathering blades 331 away from the belt 321 are placed close to the ground, so that the mustard leaves that are close to the ground can be better gathered up during operation.

[0032] Preferably, in one embodiment, the leaf-gathering blade 331 is formed by rolling up a flexible strip to form an upper blade 3311 and a lower blade 3312, with a hollow structure between the upper blade 3311 and the lower blade 3312. Preferably, the upper blade 3311 and the lower blade 3312 have the same shape, and the width at both ends of the upper blade 3311 and the lower blade 3312 is smaller than the width in the middle, and the edges of the upper blade 3311 and the lower blade 3312 are arc-shaped. This shape of the upper blade 3311 and the lower blade 3312 is more advantageous because it allows the blade to first enter the mustard root from the narrower tip, and then grip the mustard through the wider middle section. When gathering the raised mustard leaves, the wider middle side contacts and compresses the stem and leaves, completing the leaf-gathering operation. Of course, the leaf-gathering blade 331 can also be other shapes, such as rectangular. The leaf-gathering blade 331 is made of PVC, which is waterproof, moisture-proof, wear-resistant, lightweight, and has good insulation and flame-retardant properties. The leaf-gathering blades 331 are made of the aforementioned material and have a certain degree of flexibility and elasticity. By curling to form a hollow structure, they have a rebound force. Under the operation of the belt 321 and the compression of the mustard stems and leaves, the overlapping leaf-gathering blades 331 use the rebound force to gather the mustard stems and leaves together.

[0033] This application utilizes a flexible leaf-gathering device 3 to gather the mustard leaves, which is beneficial for subsequent cutting operations. At the same time, it works in conjunction with the cutting device 4 to harvest the valuable stems and leaves of the mustard after cutting, eliminating the need to pull out the mustard, omitting the clamping structure, simplifying the harvesting structure, and improving the harvesting rate and harvesting effect.

[0034] Specifically, in one embodiment, the rear wheel 323 is close to the conveyor 5, and the belt 321 forms a parallel upper belt and a lower belt. The cutting device 4 is inserted between the upper belt and the lower belt, parallel to the ground and positioned between the front wheel 322 and the rear wheel 323, with the cutting device 4 being relatively closer to the rear wheel 323. The cutting device 4, inserted between the upper and lower belts and close to the rear wheel 323, does not occupy more space and will not interfere with the leaf-gathering blades 331 as they rotate with the belt. Furthermore, the cutting device 4 is positioned as close as possible to the rear wheel 323, allowing the leaf-gathering blades 331 to completely gather the mustard leaves before cutting. Specifically, in one embodiment, the cutting device 4 includes a cutting blade 41 and a motor 42, with the motor 42 fixed to the mounting bracket 31. The motor 42 drives the cutting blade 41 to move, achieving the cutting action. Preferably, the cutting blade 41 is a reciprocating cutting blade. When cutting, the cutting blade reciprocates along the direction perpendicular to the belt rotation to cut. Using a reciprocating cutting blade results in a simple structure and a small footprint. Of course, in other embodiments, the cutting blade 41 can also be a disc cutting blade.

[0035] Specifically, in one embodiment, the conveying device 5 is fixed to the frame 1 by a bracket 51, the front end of the conveying device 5 is connected to the mounting frame 31, and the conveying device 5 is inclined as a whole. The conveying device 5 includes a conveyor belt 52, the width of which is greater than the width of the two sets of pulleys, so as to receive the cut mustard greens. Preferably, the width of the conveyor belt 52 is about the same as the width of the mounting frame 31, and the connection between the support 51 and the mounting frame 31 makes the structure simpler and more stable.

[0036] The collection box 6 is fixed to the tail end of the conveyor device 5 and to the chassis 21. After being cut, the mustard greens are conveyed to the top by the conveyor belt 52 and then automatically fall into the collection box 6.

[0037] The working principle of the horizontal leaf-gathering mustard harvester of this application is as follows: When the harvester is working, the mustard plants are first aligned. The frame 1 is driven by the walking chassis 2 to move the whole machine forward. At the same time, the flexible leaf-gathering device 3 rotates with the rotation of the two sets of pulleys 32. The belt 321 rotates, and the mustard leaves close to the ground are lifted up from the bottom by the flexible leaf-gathering unit 33 on the belt 321. When the lifted mustard leaves are gathered, the leaf-gathering blades 331 of the flexible leaf-gathering unit 33 contact and compress the stems and leaves on the side, completing the leaf-gathering operation of the mustard. The root and stem parts are exposed and cut by the cutting device 4 set between the belts 321. After the cutting is completed, the mustard is inverted on the conveyor belt 52 of the conveying device 5 and is transported to the top by the conveyor belt 52. The yellow and rotten leaves are picked out by the manual assistance after the conveyor belt 52. Finally, under the action of gravity, the mustard falls freely into the collection box 6, thus completing the mustard harvesting operation.

Claims

1. A horizontal mustard leaf harvester, characterized in that, include: The frame is equipped with a traveling chassis, a flexible blade gathering device, a cutting device, a conveying device, and a storage tank; the traveling chassis is used to drive the movement of the entire machine. The flexible leaf-gathering device is installed at the front end of the frame. The flexible leaf-gathering device includes a mounting frame parallel to the ground, two sets of pulleys fixed on the mounting frame and spaced apart, and two sets of flexible leaf-gathering units encircled on the belt of the pulleys. The width of the flexible leaf-gathering unit is greater than the width of the belt. The two sets of flexible leaf-gathering units are driven by the two sets of pulleys and the mustard leaves are gathered up by the opposite sides of the two sets of flexible leaf-gathering units. The cutting device is parallel to the ground and is located between the front and rear pulleys of two sets of pulleys, used to cut the stems of mustard greens after the leaves have been gathered. The conveying device is fixed to the frame by a bracket. The front end of the conveying device is connected to the mounting frame, and the conveying device is tilted as a whole. The collection box is fixed to the tail end of the conveying device. After the cut mustard greens are conveyed to the top by the conveyor belt, they automatically fall into the collection box. The flexible leaf-gathering unit includes multiple leaf-gathering blades, which are formed by rolling up a flexible strip to form an upper blade and a lower blade, with a hollow structure between the upper blade and the lower blade. The two sets of pulleys include a pair of pulleys and a belt encircling the pulleys. Multiple leaf blades on the belt are overlapped, and the ends of the multiple leaf blades away from the belt are placed on the ground. The upper and lower blades have the same shape, and the width at both ends of the upper and lower blades is smaller than the width in the middle. The edges of the upper and lower blades are rounded. The two sets of pulleys include a pair of pulleys and a belt encircling the pulleys. The pair of pulleys includes a front pulley and a rear pulley. The rear pulley is close to the conveying device. The belt includes a parallel upper belt and a lower belt. The cutting device is inserted between the upper belt and the lower belt and is close to the rear pulley.

2. The horizontal leaf-gathering mustard harvester according to claim 1, characterized in that, The blades of the leaf aerator are made of PVC.

3. The horizontal leaf-gathering mustard harvester according to claim 1, characterized in that, The cutting device includes a cutting blade and a motor. The motor is fixed on the mounting bracket and is used to drive the cutting blade to move. The cutting blade is a reciprocating cutting blade.

4. The horizontal leaf-gathering mustard harvester according to claim 1, characterized in that, The conveying device includes a conveyor belt, the width of which is greater than the width of the two sets of pulleys.

5. The horizontal mustard harvester according to claim 1, characterized in that, The tail end of the mounting frame is hinged to the two side frames of the conveying device, and the front end of the mounting frame is connected to the top of the frame of the conveying device through a reinforcing arm.

6. The horizontal leaf-gathering mustard harvester according to claim 1, characterized in that, The pulley assembly is driven by a motor fixed to the mounting bracket.

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