A chestnut burr picking machine with obstacle surmounting function

Abstract

This invention relates to the field of agricultural machinery technology, and more particularly to a chestnut bud picker with obstacle-crossing capability. The chestnut bud picker includes a front wheel collecting mechanism and a rear wheel picking mechanism. The front wheel collecting mechanism includes a collecting component and a front wheel steering component. The rear wheel picking mechanism includes a support frame, a guide plate, a picking component, and a walking wheel assembly. The picking component rotates to pick up chestnut buds below and transports them upwards. After being peeled off by the guide plate, they fall into the collecting component. The rear wheel picking mechanism achieves integrated automated operation of chestnut bud picking, transporting, peeling, and collecting, improving chestnut bud picking efficiency. Simultaneously, the support frame of the rear wheel picking mechanism is hinged to the collecting component of the front wheel collecting mechanism. When encountering rough terrain, the front wheel collecting mechanism and the rear wheel picking mechanism swing relative to each other around the hinge point, thereby improving the machine's terrain adaptability and passability.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a chestnut bud picking machine with obstacle-crossing function. Background Technology

[0002] Chestnuts naturally fall to the ground after ripening, creating a complex and diverse harvesting environment. They often face rugged terrain, exposed roots, scattered stones, and are covered by weeds and shrubs, further hindering efficient harvesting. Currently, chestnut harvesting in my country is primarily done manually, requiring workers to bend over repeatedly for extended periods, using only their hands or simple tools, resulting in extremely strenuous labor. Furthermore, manual harvesting is inefficient, with a single person's daily harvest volume insufficient to meet the needs of large-scale chestnut plantations.

[0003] Existing technologies include some chestnut harvesting machines, which can improve harvesting efficiency to some extent in large-scale plantations on flat terrain. However, their adaptability to complex terrains such as mountains and hills is poor. They are prone to severe vibrations when traversing rugged terrain, affecting operational stability. Furthermore, their limited mobility in areas with dense weeds and shrubs further reduces the overall efficiency of chestnut harvesting, making it difficult to meet the actual operational needs of large-scale chestnut cultivation in mountainous and hilly areas. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a chestnut bud picking machine with obstacle-crossing function, which solves the technical problem of low chestnut bud picking efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] This invention provides a chestnut bud picking machine with obstacle-crossing capability, including a front wheel collecting mechanism and a rear wheel picking mechanism. The front wheel collecting mechanism includes a collecting component and a front wheel steering component, with the front wheel steering component located at the front end of the collecting component. The rear wheel picking mechanism includes a support frame, a guide plate, a picking component, and a walking wheel assembly. Both the picking component and the walking wheel assembly are rotatably connected to the support frame, and their axes are horizontally oriented. The guide plate is located above the rear end of the collecting component. The picking component rotates to pick up the chestnut buds below and transports them to the top. After being peeled off by the guide plate, the chestnut buds fall into the collecting component. The support frame of the rear wheel picking mechanism is hinged to the collecting component of the front wheel collecting mechanism. When encountering rugged terrain, the front wheel collecting mechanism and the rear wheel picking mechanism swing relative to each other around the hinge point.

[0009] Preferably, the pickup assembly includes two pickup rollers arranged side by side at a distance, the support frame includes multiple connecting rods, the connecting rods are symmetrically arranged on both sides of the pickup rollers, the pickup rollers are rotatably connected to the connecting rods, and the connecting rods are hinged to the hinge rods on the collection assembly; the walking wheel assembly is provided with two power wheels, the two power wheels are respectively arranged on the connecting rods on the outside of the two pickup rollers, and are rotatably connected to the connecting rods; each pickup roller is provided with a guide plate.

[0010] Preferably, each connecting rod on the outer side is provided with a shock-absorbing component; the shock-absorbing component includes a shock-absorbing spring and a shock-absorbing rod; the support frame also includes a first connecting block and a second connecting block disposed on the connecting rod, one end of the shock-absorbing rod is hinged to the first connecting block, and the other end of the shock-absorbing rod is slidably connected to the second connecting block; the shock-absorbing spring is sleeved on the shock-absorbing rod, one end of the shock-absorbing spring abuts against the abutting part on the shock-absorbing rod, and the other end of the shock-absorbing spring abuts against the second connecting block; when the shock-absorbing spring is in the initial state, the shock-absorbing spring is in the compressed state.

[0011] Preferably, the rear wheel pickup mechanism further includes a guide plate; the guide plate is disposed between the two pickup rollers and connected to the hinge rod to guide the chuck in the gap between the two pickup rollers to below the two pickup rollers.

[0012] Preferably, multiple rings of pickup units are evenly spaced along the axial direction on the outer peripheral wall of the pickup roller, and each pickup unit includes multiple pickup columns spaced apart circumferentially along the pickup roller; the fork portion of the guide plate extends upward at an angle, and the upper end of the fork portion extends into the gap between two adjacent rings of pickup units; when the pickup roller rotates, it picks up the lower chestnut buds through the pickup columns and brings them to the upper part, and the guide plate is used to peel off the chestnut buds picked up by the pickup columns and guide the chestnut buds to slide into the collection assembly.

[0013] Preferably, the guide plate includes a guide plate and a plurality of forks; the plurality of forks are spaced apart on the guide plate and the upper ends of the plurality of forks extend into the gap between two adjacent pickup units; the guide plate is disposed on the collection assembly.

[0014] Preferably, the front wheel steering assembly includes a front steering wheel crossbeam, an electric push rod, a connecting rod, and two front wheels; the front steering wheel crossbeam is located at the front end of the collecting assembly; the two front wheels are respectively hinged to the front steering wheel crossbeam via configuration plates, and the front wheels are rotatably connected to the configuration plates; the fixed end of the electric push rod is connected to the front steering wheel crossbeam, and the movable end of the electric push rod is hinged to one of the configuration plates; both ends of the connecting rod are respectively hinged to the two configuration plates; when the electric push rod extends or retracts, it drives the corresponding configuration plate to deflect, and drives the two configuration plates to move synchronously through the connecting rod, so as to steer the two front wheels.

[0015] Preferably, the collection assembly includes a collection box and a vibrating screen unit; the vibrating screen unit is detachably connected to the collection box; the vibrating screen unit includes a screen, a vibrator and multiple spring vibrating elements; the screen is positioned above the collection box, the vibrator is positioned on the screen, and the multiple spring vibrating elements are positioned between the screen and the collection box; the picking assembly rotates to pick up the lower chestnut buds and transports them to the upper part, where they are peeled off by a guide plate and fall into the screen.

[0016] Preferably, the collection assembly further includes an inclined guide plate located below the vibrating screen unit; outlets are provided at the front ends of both sides of the collection box;

[0017] The inclined guide plate is tilted downwards to both sides, and the entire inclined guide plate is arranged with the front end pointing downwards, so that debris can be discharged from the outlet.

[0018] Preferably, the front wheel collection mechanism further includes auxiliary support wheel assemblies respectively disposed on both sides of the collection box; the auxiliary support wheel assembly includes a telescopic rod, a retractable rod and an auxiliary wheel; one end of the retractable rod is hinged to the collection box, and the other end of the retractable rod is rotatably connected to the auxiliary wheel; the fixed end of the telescopic rod is connected to the collection box, and the telescopic end of the telescopic rod is connected to one side of the retractable rod, so that the auxiliary wheel abuts against or moves away from the ground.

[0019] (III) Beneficial Effects

[0020] The beneficial effects of this invention are:

[0021] This invention discloses a chestnut bud picking machine with obstacle-crossing capability, comprising a front wheel collecting mechanism and a rear wheel picking mechanism. The front wheel collecting mechanism includes a collecting component and a front wheel steering component, with the steering component located at the front end of the collecting component. The rear wheel picking mechanism includes a support frame, a guide plate, a picking component, and a traveling wheel assembly. Both the picking component and the traveling wheel assembly are rotatably connected to the support frame, and their axes are horizontally oriented. The guide plate is positioned above the rear end of the collecting component. The picking component rotates to pick up chestnut buds below and transports them upwards. After being peeled off by the guide plate, they fall into the collecting component. The rear wheel picking mechanism achieves integrated automated operation of chestnut bud picking, transporting, peeling, and collecting, eliminating the need for manual bending and picking, solving the problems of high labor intensity and easy wear and tear associated with manual picking, and improving the picking efficiency of chestnut buds.

[0022] Meanwhile, the support frame of the rear wheel pickup mechanism is hinged to the collection component of the front wheel collection mechanism. When encountering rough terrain, the front wheel collection mechanism and the rear wheel pickup mechanism swing relative to each other around the hinge point. By setting up the front wheel collection mechanism and the rear wheel pickup mechanism that are hinged to each other, the pickup machine can swing relative to each other around the hinge point when encountering rough terrain, tree roots, or obstacles such as rocks. This improves the machine's terrain adaptability and passability, avoids chassis twisting or jamming caused by a rigid body on complex ground, reduces severe vibration of the whole machine, and ensures the stability of the equipment in mountainous, hilly and other uneven terrains. Attached Figure Description

[0023] Figure 1 A first-person view structural diagram of a chestnut bud picker with obstacle-crossing capabilities;

[0024] Figure 2 A structural schematic diagram from a second-view perspective of a chestnut bud picker with obstacle-crossing capabilities;

[0025] Figure 3 This is a schematic diagram of the rear wheel pickup mechanism;

[0026] Figure 4 for Figure 3 The right view;

[0027] Figure 5 for Figure 1 An enlarged schematic diagram of part A in the middle;

[0028] Figure 6 This is a schematic diagram of the pickup roller structure;

[0029] Figure 7 for Figure 2 An enlarged schematic diagram of section C;

[0030] Figure 8 A schematic diagram of the disassembled collection component in a chestnut bud picker;

[0031] Figure 9 for Figure 1 Enlarged schematic diagram of part B in the middle;

[0032] Figure 10 This is a schematic diagram of the front wheel steering assembly.

[0033] [Explanation of Labels in the Attached Image]

[0034] 1: Front wheel collection mechanism; 11: Collection assembly; 111: Hinge rod; 112: Collection box; 113: Vibrating screen unit; 1131: Screen; 1132: Vibrator; 1133: Spring vibrator; 1134: Mounting plate; 114: Inclined guide plate; 12: Front wheel steering assembly; 121: Front steering wheel crossbeam; 122: Electric push rod; 123: Connecting rod; 124: Front wheel; 125: Configuration plate; 13: Auxiliary support wheel assembly; 131: Telescopic rod; 132: Retractable rod; 133: Auxiliary wheel;

[0035] 2: Rear wheel pickup mechanism; 21: Support frame; 211: Connecting rod; 212: First connecting block; 213: Second connecting block; 22: Guide plate; 221: Guide plate; 222: Fork part; 23: Pickup assembly; 231: Pickup roller; 2311: Pickup column; 232: First drive component; 24: Walking wheel assembly; 241: Power wheel; 242: Second drive component; 25: Shock absorption assembly; 251: Shock absorption spring; 252: Shock absorption rod; 26: Directional plate; 27: Cover plate. Detailed Implementation

[0036] To better explain and facilitate understanding of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides a chestnut bud picking machine with obstacle-crossing function. The chestnut bud picking machine includes a front wheel collecting mechanism 1 and a rear wheel picking mechanism 2 that are hinged to each other.

[0038] The front wheel collection mechanism 1 includes a collection component 11 and a front wheel steering component 12, with the front wheel steering component 12 located at the front end of the collection component 11.

[0039] The rear wheel pickup mechanism 2 includes a support frame 21, a guide plate 22, a pickup component 23, and a traveling wheel assembly 24. Both the pickup component 23 and the traveling wheel assembly 24 are rotatably connected to the support frame 21, and their axes are horizontally oriented. The guide plate 22 is positioned above the rear end of the collection assembly 11. The pickup component 23 rotates to pick up the chestnut buds below and transports them upwards. After being peeled off by the guide plate 22, they fall into the collection assembly 11. The rear wheel pickup mechanism 2 achieves integrated automated operation of chestnut bud pickup, transport, peeling, and collection, eliminating the need for manual bending and picking, solving the problems of high labor intensity and easy wear and tear associated with manual picking, and improving the efficiency of chestnut bud pickup.

[0040] The support frame 21 of the rear wheel pickup mechanism 2 is hinged to the collection component 11 of the front wheel collection mechanism 1. When encountering rugged terrain, the front wheel collection mechanism 1 and the rear wheel pickup mechanism 2 swing relative to each other around the hinge point. By setting the front wheel collection mechanism 1 and the rear wheel pickup mechanism 2 to be hinged to each other, the pickup machine can swing relative to each other around the hinge point when encountering rugged terrain, tree roots, or obstacles such as rocks. This improves the terrain adaptability and passability of the whole machine, avoids chassis twisting or jamming caused by the rigid body on complex ground, reduces the severe vibration of the whole machine, and ensures the stability of the equipment in mountainous, hilly and other uneven terrain. When the front wheel 124 climbs on rocks or tree roots, the rear wheel pickup mechanism 2 can still maintain effective contact with the ground, and the pickup roller 231 will not be too high off the ground due to the lifting of the front wheel 124, thus avoiding missing the chestnut buds. Conversely, when the rear wheel encounters a bump, the front wheel collection mechanism 1 can also remain relatively stable, avoiding excessive tilting of the collection box 112 and causing the chestnut buds to spill. This forward and backward floating design allows the pickup machine to operate stably on forest slopes with significant elevation changes, greatly expanding the applicable terrain range of the equipment.

[0041] like Figure 3 As shown, the pickup assembly 23 includes two first driving members 232 and two pickup rollers 231 arranged side-by-side at intervals. Each first driving member 232 drives one pickup roller 231 to rotate. The support frame 21 includes multiple connecting rods 211. The connecting rods 211 are symmetrically arranged on both sides of the pickup rollers 231. The rotating shaft of the pickup rollers 231 is rotatably connected to the connecting rods 211. The connecting rods 211 are hinged to the hinge rods 111 on the collection assembly 11. The walking wheel assembly 24 includes two second power members and two power wheels 241. Each second power member drives one power wheel 241. The two power wheels 241 are respectively arranged on the connecting rods 211 on the outer sides of the two pickup rollers 231 and are rotatably connected to the connecting rods 211. Each pickup roller 231 is provided with a guide plate 22, such as... Figure 4 As shown, the design of two pickup rollers 231 arranged side by side effectively increases the pickup width in a single operation, allowing the equipment to cover a wider harvesting area in one pass on flat ground, thus improving operational efficiency. Simultaneously, the dual-roller structure also possesses excellent ground contour-following capability; each roller can independently adjust its posture according to the undulations of the ground beneath it. Figure 1 As shown, to prevent chestnut buds from falling, each guide plate 22 is provided with a baffle plate 27 on both sides. The baffle plate 27 extends along the length of the guide plate 22 to form a closed flow channel on both sides, ensuring that the chestnut buds peeled off from the pickup roller 231 will not roll back to the ground from the side during the process of sliding down the guide plate 22, thereby improving the collection rate of chestnut buds.

[0042] like Figure 1 and Figure 5As shown, each of the connecting rods 211 on the outer side is equipped with a shock-absorbing component 25. The shock-absorbing component 25 includes a shock-absorbing spring 251 and a shock-absorbing rod 252. The support frame 21 also includes a first connecting block 212 and a second connecting block 213 disposed on the connecting rods 211. One end of the shock-absorbing rod 252 is hinged to the first connecting block 212, and the other end of the shock-absorbing rod 252 is slidably connected to the second connecting block 213. The shock-absorbing spring 251 is sleeved on the shock-absorbing rod 252. One end of the shock-absorbing spring 251 abuts against the abutment part on the shock-absorbing rod 252, and the other end of the shock-absorbing spring 251 abuts against the second connecting block 213. When the shock-absorbing spring 251 is in the initial state, it is in a compressed state. When the pickup machine travels on rough ground covered with gravel and tree roots, the shock-absorbing component 25 can effectively absorb the impact load from the traveling wheels and the collection roller, significantly reducing the vibration transmitted to the whole machine. To prevent the shock absorber 252 from getting stuck during movement, the connecting hole on the second locking block corresponding to the shock absorber 252 is slightly larger than the diameter of the shock absorber 252.

[0043] like Figure 4 As shown, to prevent chestnut pods from falling into the gap between the two pickup rollers 231 and failing to be effectively picked up, the rear wheel pickup mechanism 2 also includes a directional plate 26. The directional plate 26 is located between the two pickup rollers 231 and connected to the hinge rod 111 to guide chestnut pods in the gap between the two pickup rollers 231 to below the two pickup rollers 231. The directional plate 26 is typically made of wear-resistant metal sheet, with a wedge-shaped front end and a gradually widening rear end, forming a diversion guide surface. When a chestnut pod enters the gap area between the two pickup rollers 231 with relative movement to the ground, it will first contact the sharp corner of the directional plate 26, and then be diverted to both sides under the guiding slope of the directional plate 26. This ensures that all chestnut pods entering the working width of the equipment can be reliably picked up, avoiding pickup dead zones, thereby improving the overall comprehensiveness of the pickup and the recovery rate.

[0044] like Figure 6As shown, multiple rings of pickup units are evenly spaced along the axial direction on the outer peripheral wall of each pickup roller 231. Each pickup unit includes multiple pickup columns 2311 spaced circumferentially along the pickup roller 231. The fork portion 222 of the guide plate 22 extends upward at an angle, and the upper end of the fork portion 222 extends into the gap between two adjacent rings of pickup units. When the first drive member 232 drives the pickup roller 231 to rotate, it picks up the lower chestnuts through the pickup columns 2311 and brings them to the upper part. The guide plate 22 is used to peel off the chestnuts picked up by the pickup columns 2311 and guide the chestnuts to slide into the collection assembly 11. It should be noted that the rotation of the pickup roller 231 is based on the direction definition viewed from the right side of the machine, that is, the upper part of the roller rotates towards the guide plate 22, and the lower part rotates away from the guide plate 22. After the fork portion 222 of the guide plate 22 extends into the gap between two adjacent rings of pickup components 23, the radial distance between its end and the surface of the roller is controlled at 5mm-10mm to ensure that the chestnut cannot escape from the gap between the fork and the pickup roller 231.

[0045] The pickup column 2311 picks up the chestnut buds through a combination of the squeezing force of adjacent pickup columns 2311 and the locking action of the sharp points on the surface of the chestnut buds. This ensures that the chestnut buds are stably attached between the pickup columns 2311, preventing them from falling off during transport. Specifically, when a chestnut bud is locked between two adjacent pickup columns 2311, the sharp points on the surface of the chestnut buds embed into the side walls or gaps of the pickup columns 2311 due to the flexibility and surface friction coefficient of the pickup columns 2311. At the same time, the slight squeezing applied to the chestnut buds by the adjacent pickup columns 2311 further enhances this locking effect.

[0046] like Figure 3 and Figure 4 As shown, the distance between the lowest point of the pickup column 2311 on the pickup roller 231 and the ground is 12mm-15mm. This ensures that the pickup column 2311 can effectively contact the chestnut husks scattered on the ground, while avoiding damage caused by the pickup column 2311 inserting into the soil or hitting stones due to excessively small spacing. Practical experience has verified that this range has good pickup adaptability for chestnut husks of different sizes, while reducing the accidental inclusion of soil clods, weeds, and other debris in the basket, thus improving the cleanliness and collection quality. It should be noted that this spacing refers to the vertical distance between the lowest point of the pickup column 2311 in its natural hanging state and the ground.

[0047] In this embodiment, the pickup column 2311 is a rubber column, which is flexible and can produce a certain elastic deformation when in contact with the chestnut bud. This increases the friction with the surface of the chestnut bud, preventing slippage, and also buffers the impact on the chestnut bud, avoiding mechanical damage. The hardness of the rubber column is usually controlled at Shore A 60-70 degrees. If it is too hard, the elasticity will be insufficient and it will easily damage the chestnut bud; if it is too soft, the support will be insufficient and it will not be able to effectively contact the chestnut bud.

[0048] The spacing between two adjacent rings of pickup components 23 is 20mm-40mm, and the spacing between two adjacent pickup posts 2311 within each ring of pickup components 23 is also 20mm-40mm. The specific spacing is selected based on the variety of chestnut buds. This spacing ensures that the chestnut buds can be effectively contacted by the pickup posts 2311 within the pickup components 23 and caught in the gaps to be lifted up. It also prevents the chestnut buds from being squeezed, deformed, or blocked due to excessively small gaps between adjacent rings, and prevents small-sized chestnut buds from being missed due to excessively large gaps. This reasonable spacing design improves the pickup rate and reduces missed pickup losses.

[0049] like Figure 7 As shown, the guide plate 22 includes a guide plate 221 and a plurality of forks 222. The plurality of forks 222 are spaced apart on the guide plate 221 and the upper ends of the plurality of forks 222 extend into the gap between two adjacent pickup units. The guide plate 221 is disposed on the collection assembly 11.

[0050] like Figure 10 As shown, the front wheel steering assembly 12 includes a front steering wheel crossbeam 121, an electric push rod 122, a connecting rod 123, and two front wheels 124. The front steering wheel crossbeam 121 is located at the front end of the collection assembly 11. The two front wheels 124 are respectively hinged to the front steering wheel crossbeam 121 through configuration plates 125. The front wheels 124 are rotatably connected to the configuration plates 125. The fixed end of the electric push rod 122 is connected to the front steering wheel crossbeam 121, and the movable end of the electric push rod 122 is hinged to one of the configuration plates 125. The two ends of the connecting rod 123 are respectively hinged to the two configuration plates 125. When the electric push rod 122 extends or retracts, it drives the corresponding configuration plate 125 to deflect. The connecting rod 123 drives the two configuration plates 125 to move synchronously, so that the two front wheels 124 turn, thereby realizing the flexible and accurate steering of the pickup machine. In complex environments such as mountains and hills where it is necessary to frequently avoid obstacles such as trees and rocks, the front wheel steering assembly 12 can significantly reduce the turning radius of the equipment, improve the equipment's maneuverability and passability, and enable operators to easily guide the machine to work in the woodland.

[0051] like Figure 8 and Figure 9As shown, the collection assembly 11 includes a collection box 112 and a vibrating screen unit 113. The vibrating screen unit 113 is detachably connected to the collection box 112. The vibrating screen unit 113 includes a screen 1131, a vibrator 1132, and multiple spring vibrating elements 1133. The screen 1131 is located above the collection box 112, the vibrator 1132 is located on the screen 1131, and multiple spring vibrating elements 1133 are located between the screen 1131 and the collection box 112. The spring vibrating elements 1133 are located between the bottom of the collection box 112 and the screen 1131, or between the screen 1131 and the top of the side wall of the collection box 112. The screen 1131 is detachably connected to the top of the side wall of the collection box 112 via a mounting plate 1134. The picking assembly 23 rotates to pick up the lower chestnut and transports it to the upper part. After being peeled off by the guide plate 22, it falls into the screen 1131. By incorporating a vibrating screen unit 113 in the collection assembly 11, chestnut husks falling into the screen 1131 can be automatically screened. Under vibration, impurities such as soil, broken leaves, and small stones mixed in the chestnut husks will fall through the screen 1131 into the bottom of the collection box 112 or be discharged, achieving preliminary cleaning of the chestnut husks. The vibrator 1132 can be an eccentric vibrating motor or an electromagnetic vibrator 1132, and its vibration frequency and amplitude can be adjusted according to the impurity content of the chestnut husks.

[0052] To improve the discharge efficiency of debris, the collection assembly 11 also includes an inclined guide plate 114. The inclined guide plate 114 is located below the vibrating screen unit 113. Outlets are located at the front ends of both sides of the collection box 112. The inclined guide plate 114 is inclined downwards to both sides, and the entire inclined guide plate 114 is arranged with the front end pointing downwards, so that debris can be discharged from the outlets. Lightweight debris (such as broken leaves and withered grass) and some small particulate impurities screened off from the vibrating screen 1131 will automatically flow to both sides along the inclined guide plate 114 and be discharged from the front slag outlet, effectively preventing debris from accumulating and clogging in the collection box 112, and ensuring the continuous working capacity of the screen unit 1131. The inclined guide plate 114 is usually integrally formed or welded to the bottom plate of the collection box 112.

[0053] like Figure 1 and Figure 2As shown, the front wheel collection mechanism 1 also includes auxiliary support wheel assemblies 13 respectively disposed on both sides of the collection box 112. The auxiliary support wheel assembly 13 includes a telescopic rod 131, a retractable rod 132, and an auxiliary wheel 133. One end of the retractable rod 132 is hinged to the collection box 112, and the other end is rotatably connected to the auxiliary wheel 133. The fixed end of the telescopic rod 131 is connected to the collection box 112, and the telescopic end of the telescopic rod 131 is connected to one side of the retractable rod 132, so that the auxiliary wheel 133 abuts against or moves away from the ground. The telescopic rod 131 can be driven by an electric push rod 122, a hydraulic cylinder, or a manual screw mechanism. The operator can adjust the unfolding and retracting state of the auxiliary wheel 133 at any time according to actual needs. When the pickup machine travels a long distance on a straight road, the auxiliary wheel 133 retracts to reduce walking resistance; when entering steep slopes or complex terrain covered with gravel, the auxiliary wheel 133 unfolds and abuts against the ground, forming a three-point or four-point stable support structure, significantly reducing the risk of the entire machine tipping over.

[0054] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A chestnut bud picking machine with obstacle-crossing capability, characterized in that, It includes a front wheel collection mechanism (1) and a rear wheel pickup mechanism (2); The front wheel collection mechanism (1) includes a collection component (11) and a front wheel steering component (12), wherein the front wheel steering component (12) is located at the front end of the collection component (11); The rear wheel picking mechanism (2) includes a support frame (21), a guide plate (22), a picking component (23), and a walking wheel assembly (24). The picking component (23) and the walking wheel assembly (24) are rotatably connected to the support frame (21), and their axes are horizontally oriented. The guide plate (22) is located above the rear end of the collecting component (11). The picking component (23) rotates to pick up the lower chestnut buds and transports them to the upper part. After being peeled off by the guide plate (22), they fall into the collecting component (11). The support frame (21) of the rear wheel pickup mechanism (2) is hinged to the collection component (11) of the front wheel collection mechanism (1). When encountering rugged terrain, the front wheel collection mechanism (1) and the rear wheel pickup mechanism (2) swing relative to each other around the hinge point.

2. The chestnut bud picking machine with obstacle-crossing function as described in claim 1, characterized in that: The pickup assembly (23) includes two pickup rollers (231) arranged side by side at a distance, and the support frame (21) includes multiple connecting rods (211). The connecting rods (211) are symmetrically arranged on both sides of the pickup rollers (231). The pickup rollers (231) are rotatably connected to the connecting rods (211), and the connecting rods (211) are hinged to the hinge rods (111) on the collection assembly (11). The walking wheel assembly (24) includes two drive wheels (241), which are respectively mounted on the connecting rods (211) on the outside of the two pickup rollers (231) and are rotatably connected to the connecting rods (211); Each of the pickup rollers (231) is provided with a corresponding guide plate (22).

3. The chestnut bud picking machine with obstacle-crossing function as described in claim 2, characterized in that: Each of the connecting rods (211) located on the outside is provided with a shock-absorbing component (25); The damping assembly (25) includes a damping spring (251) and a damping rod (252); The support frame (21) further includes a first connecting block (212) and a second connecting block (213) disposed on the connecting rod (211). One end of the shock absorber (252) is hinged to the first connecting block (212), and the other end of the shock absorber (252) is slidably connected to the second connecting block (213). The shock-absorbing spring (251) is sleeved on the shock-absorbing rod (252), one end of the shock-absorbing spring (251) abuts against the abutting part on the shock-absorbing rod (252), and the other end of the shock-absorbing spring (251) abuts against the second connecting block (213); When the damping spring (251) is in the initial state, the damping spring (251) is in the compressed state.

4. The chestnut bud picking machine with obstacle-crossing function as described in claim 2, characterized in that: The rear wheel pickup mechanism (2) also includes a steering plate (26); The directional plate (26) is disposed between the two pickup rollers (231) and connected to the hinge rod (111) to guide the bud in the gap between the two pickup rollers (231) to below the two pickup rollers (231).

5. The chestnut bud picking machine with obstacle-crossing function as described in claim 2, characterized in that: Multiple pickup units are arranged at equal intervals along the axial direction on the outer peripheral wall of the pickup roller (231), and each pickup unit includes multiple pickup columns (2311) arranged at circumferential intervals along the pickup roller (231). The fork portion (222) of the guide plate (22) extends upward at an angle, and the upper end of the fork portion (222) extends into the gap between two adjacent pickup units; When the picking roller (231) rotates, it picks up the lower chestnut buds through the picking column (2311) and brings them to the upper part. The guide plate (22) is used to peel off the chestnut buds picked up by the picking column (2311) and guide the chestnut buds to slide into the collection assembly (11).

6. The chestnut bud picking machine with obstacle-crossing function as described in claim 2, characterized in that: The guide plate (22) includes a guide plate (221) and multiple fork portions (222); Multiple shift forks (222) are spaced apart on the guide plate (221) and the upper ends of the multiple shift forks (222) extend into the gap between two adjacent rings of pickup units; The guide plate (221) is disposed on the collection assembly (11).

7. The chestnut bud picking machine with obstacle-crossing function as described in any one of claims 1-6, characterized in that: The front wheel steering assembly (12) includes a front steering wheel crossbeam (121), an electric push rod (122), a connecting rod (123), and two front wheels (124). The front steering wheel crossbeam (121) is disposed at the front end of the collecting assembly (11); The two front wheels (124) are respectively hinged to the front steering wheel crossbeam (121) via a configuration plate (125), and the front wheels (124) are rotatably connected to the configuration plate (125); The fixed end of the electric push rod (122) is connected to the front steering wheel crossbeam (121), and the movable end of the electric push rod (122) is hinged to one of the configuration plates (125). The two ends of the connecting rod (123) are respectively hinged to the two configuration plates (125); When the electric push rod (122) extends or retracts, it drives the corresponding configuration plate (125) to deflect, and drives the two configuration plates (125) to move synchronously through the connecting rod (123) so that the two front wheels (124) turn.

8. The chestnut bud picking machine with obstacle-crossing function as described in claim 7, characterized in that: The collection assembly (11) includes a collection box (112) and a vibrating screen unit (113). The vibrating screen unit (113) is detachably connected to the collection box (112); The vibrating screen unit (113) includes a screen (1131), a vibrator (1132), and multiple spring vibrating elements (1133). The screen (1131) is disposed above the collection box (112), the vibrator (1132) is disposed on the screen (1131), and a plurality of spring vibrating elements (1133) are disposed between the screen (1131) and the collection box (112); The picking component (23) rotates to pick up the lower chestnut buds and transports them to the upper part. After being peeled off by the guide plate (22), they fall into the screen (1131).

9. The chestnut bud picking machine with obstacle-crossing function as described in claim 8, characterized in that: The collecting assembly (11) also includes an inclined guide plate (114) located below the vibrating screen unit (113); The collection box (112) has outlets on both front ends; The inclined guide plate (114) is inclined downward on both sides, and the inclined guide plate (114) is arranged with the front end downward so that the debris is discharged from the outlet.

10. The chestnut bud picking machine with obstacle-crossing function as described in claim 8, characterized in that: The front wheel collection mechanism (1) also includes auxiliary support wheel assemblies (13) respectively disposed on both sides of the collection box (112). The auxiliary support wheel assembly (13) includes a telescopic rod (131), a retractable rod (132), and an auxiliary wheel (133). One end of the retractable rod (132) is hinged to the collection box (112), and the other end of the retractable rod (132) is rotatably connected to the auxiliary wheel (133); The fixed end of the telescopic rod (131) is connected to the collection box (112), and the telescopic end of the telescopic rod (131) is connected to one side of the retractable rod (132) so that the auxiliary wheel (133) abuts against or moves away from the ground.

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