A chestnut picking machine

Abstract

The present application relates to the technical field of agricultural auxiliary equipment, in particular to a Chinese chestnut picking machine, a vehicle frame is composed of a front vehicle frame, a rear vehicle frame and a hand-pushing frame; a chestnut burr picking device is installed in the front vehicle frame, a Chinese chestnut picking device is installed in the rear vehicle frame through a second hinge, a conveying device is installed on the front beam of the hand-pushing frame; a collecting device is installed at the tail end of the rear vehicle frame and below the conveying device, a power battery is fixed at the rear end of the rear vehicle frame, and a walking device is assembled at the lower end surface of the rear vehicle frame; the present application has a simple overall structure, can realize electric walking, can separately pick up fallen chestnut burrs and Chinese chestnuts, can effectively collect, can automatically discharge, can automatically return to the collecting device, and can improve the picking efficiency. It is convenient to transfer between plots and can be used in complex hilly and mountainous areas.

Description

Technical Field

[0001] This invention relates to the field of agricultural auxiliary equipment technology, specifically a chestnut picking machine. Background Technology

[0002] After chestnuts ripen, some of the husks will split open, and the husks and chestnuts will fall to the ground. Currently, harvesting is mainly done manually, aided by simple picking tools. This method is labor-intensive, the harvesting environment is poor, work efficiency is low, and the repeated bending over damages the health of chestnut farmers. Furthermore, manual harvesting is only suitable for small-scale production. In areas with large-scale chestnut cultivation, mechanization should be implemented as much as possible to improve harvesting efficiency.

[0003] Wu Wenjie invented a chestnut harvester (CN108156958A), a hand-held type. It uses a roller with a densely packed circumferential elastic body that rolls along the ground, carrying chestnuts as it rotates axially. When the chestnuts rotate from the lower part of the roller to the upper part, they are "shaved" off the elastic body by the comb teeth and guide plate in the hopper and fall into the hopper, thus picking up chestnuts from the ground. Jing Maokai et al. invented a portable chestnut picker (CN110754220A), a picker that uses belt friction to transport chestnuts, providing a portable chestnut picker that is easy to carry and allows picking up chestnuts without bending over. Lu Le invented a chestnut picker (CN112205172A), whose picker easily clamps and releases the husk (shell) using a clamping spring. Xu Mingli et al. invented a hand-held chestnut picking and collecting machine (CN207075254U), which includes five parts: a gathering unit, a picking unit, a collection unit, a transmission unit, and a support and walking unit. A tractor provides power, and the worker controls the direction of movement, achieving semi-mechanization of chestnut picking and collecting, greatly reducing the labor intensity of the workers. Li Zhaoqi invented a fully automatic chestnut picking machine (CN207665530U), which uses the suction force generated by a fan to suck chestnuts from the ground into a storage container and completes the slag removal, replacing manual picking.

[0004] Existing small chestnut picking machines are only suitable for picking up scattered individual chestnuts and require manual operation. Chestnut picking machines collect chestnut husks and scattered chestnuts together, which can easily cause blockages caused by sand and straw, increasing the burden on the machine and making the machine bulky. They are not suitable for collecting in mountainous and hilly areas, and the technology is not yet mature. Summary of the Invention

[0005] The purpose of this invention is to provide a chestnut picking machine to overcome the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A chestnut picking machine comprises a chestnut bud picking device, a chestnut picking device, a conveying device, a collecting device, a walking device, a frame, and a power battery;

[0008] The vehicle frame consists of a front frame, a rear frame, and a push frame. The front frame is connected to the front end of the rear frame via a first hinge. The push frame is welded and fixed above the rear end of the rear frame. The chestnut bud picking device is installed inside the front frame, and the chestnut picking device is installed inside the rear frame via a second hinge. The conveying device is installed on the front beam of the push frame. The collecting device is installed at the rear end of the rear frame and located below the conveying device. The power battery is fixed to the rear end of the rear frame, and the walking device is mounted on the lower end face of the rear frame.

[0009] The chestnut bud picking device, chestnut picking device, conveying device, and walking device are all electrically connected to the power battery.

[0010] Furthermore, the chestnut bud picking device includes a chestnut bud picking brush roller, a first brush roller motor, floating comb teeth, and an arc-shaped limiting groove plate; the chestnut bud picking brush roller is rotatably mounted on the front frame via a bearing seat, and the first brush roller motor is fixed on the front frame via a motor support for driving the chestnut bud picking brush roller; the arc-shaped limiting groove plate is fixed inside the front frame, one end of the floating comb teeth is rotatably mounted in the bearing seat, and the other end is slidably mounted in the arc-shaped limiting groove plate; the floating comb teeth include tooth forks, connecting pieces, and connecting plates; a plurality of tooth forks are welded at equal intervals onto the connecting pieces, the connecting plates are disposed at both ends of the connecting pieces, the ends of the connecting plates are rotatably mounted on the bearing seat, and the sides of the connecting plates are slidably embedded in the arc-shaped limiting groove plate;

[0011] In this embodiment, the first brush roller motor is composed of nylon filaments of suitable strength wound around a shaft and is driven to rotate. The toothed fork is a metal material with a certain curvature, which is evenly welded onto the connecting plate to form a toothed fork row. Connecting plates are attached to both ends of the toothed fork, and the connecting plates rotate around the shaft to realize the floating of the comb teeth. In order to control the floating height of the comb teeth, a limiting mechanism is set at both ends to control the ground clearance according to the terrain, prevent the comb teeth from touching the ground, and effectively reduce the blockage of firewood and grass on the ground. The limiting mechanism is an arc-shaped limiting groove plate with the curvature of the toothed fork, which holds a bolt and nut locking mechanism to realize the low point limit of the floating comb teeth.

[0012] Furthermore, the chestnut picking device comprises a chestnut picking brush roller, a swing arm motor, a swing arm motor support, a crank-rocker mechanism, a swing arm, a swing arm support, a second brush roller motor, a floating frame, and a picking net strip. The floating frame is mounted inside the rear frame via a second hinge. The second brush roller motor is mounted on the floating frame via a motor mounting bracket and drives the chestnut picking brush roller. One end of the picking net strip is fixed to the floating frame, and the other end is connected to the swing arm. The swing arm motor is mounted on the floating frame via a swing arm motor base, and the swing arm motor drives the crank-rocker mechanism to realize the back-and-forth swing of the swing arm.

[0013] In this embodiment, the chestnut picking brush roller is driven to rotate by the second brush roller motor, so that chestnuts without husks and chestnuts with husks swept by the chestnut picking device are swept together and sent to the conveying device; the floating frame is connected to the rear frame through the second hinge, so that the frame floats with the ground; the picking net is composed of steel wires with appropriate rigidity and elasticity evenly distributed and connected, with one end fixed and the other end connected to the swing arm; the swing arm is swung back and forth by the swing arm motor driving the crank rocker mechanism, which squeezes the chestnuts scattered on the ground in, and sends the chestnuts to the conveying device as the chestnut picking brush roller rotates.

[0014] Furthermore, the conveying device includes a lifting motor, a lifting chain plate side plate, a chain support plate, a driven sprocket, a driven shaft, a drive shaft, a rotating shaft seat, a drive sprocket, and a chain; the lifting chain plate side plate is installed inside the hand-push frame, the lifting motor is fixed on the hand-push frame, and its output end extends into the lifting chain plate side plate, driving the drive shaft through the rotating shaft; the driven shaft is rotatably installed at the other end of the lifting chain plate side plate, the drive sprocket is installed on the drive shaft, the driven sprocket is installed on the driven shaft, and the driven shaft is driven by a set of chains; the chain support plate is installed on the chain;

[0015] In this embodiment, the chestnut buds and chestnuts are swept onto the chain tray by the chestnut picking brush roller of the chestnut picking device. The chain drives the chain tray to rotate. When the maximum height is reached, the chestnut buds and chestnuts will fall into the collection device. A gap of less than the height and width of one chestnut is left between the chain trays to facilitate the falling of impurities.

[0016] Furthermore, the collecting device is a detachable movable frame;

[0017] Furthermore, the walking device includes a DC geared motor, a front drive wheel, and a rear swivel wheel; the DC geared motor drives the front drive wheel, providing forward power for the entire device, and the rear swivel wheel is installed under the rear frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] This invention features a simple overall structure, electric mobility, and the ability to collect fallen chestnut buds and chestnuts separately, achieving effective collection. It also features automatic material discharge and return to the collection device, improving collection efficiency. It is easily adaptable to different plots of land and can be used in complex hilly and mountainous areas. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the chestnut bud picking device of the present invention;

[0022] Figure 3 This is a schematic diagram of the chestnut picking device of the present invention;

[0023] Figure 4 This is a schematic diagram of the conveying device of the present invention. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0025] refer to Figure 1-4 As shown, a chestnut picking machine comprises a chestnut bud picking device 100, a chestnut picking device 200, a conveying device 300, a collecting device 400, a walking device 700, a frame 600, and a power battery 500.

[0026] The vehicle frame 600 consists of a front frame 601, a rear frame 602, and a push frame 603. The front frame 601 is connected to the front end of the rear frame 601 via a first hinge 105. The push frame 603 is welded and fixed above the rear end of the rear frame 601. The chestnut husk picking device 100 is installed inside the front frame 601, and the chestnut picking device 200 is installed inside the rear frame 602 via a second hinge 211. The conveying device 300 is installed on the front beam of the push frame 603. The collecting device 400 is installed at the rear end of the rear frame 602 and is located below the conveying device 300. The power battery 500 is fixed to the rear end of the rear frame 602, and the walking device 700 is mounted on the lower end face of the rear frame 602.

[0027] The chestnut bud picking device 100, chestnut picking device 200, conveying device 300, and walking device 700 are all electrically connected to the power battery 500.

[0028] Furthermore, the chestnut bud picking device 100 includes a chestnut bud picking brush roller 101, a first brush roller motor 103, floating comb teeth, and an arc-shaped limiting groove plate 104; the chestnut bud picking brush roller 101 is rotatably mounted on the front frame 601 via a seated bearing 109, and the first brush roller motor 103 is fixed on the front frame 601 via a motor support 102 for driving the chestnut bud picking brush roller 101; the arc-shaped limiting groove plate 104 is fixed inside the front frame 601, and one end of the floating comb teeth is rotatably mounted in the seated bearing 109, while the other end is slidably mounted in the arc-shaped limiting groove plate 104;

[0029] Furthermore, the floating comb teeth include toothed forks 106, connecting pieces 107, and connecting plates 108; a plurality of toothed forks 106 are welded at equal intervals onto the connecting pieces 107, the connecting plates 108 are disposed at both ends of the connecting pieces 107, the ends of the connecting plates 108 are rotatably mounted on bearings 109, and the sides of the connecting plates 108 are slidably embedded in the arc-shaped limiting grooves 104;

[0030] Furthermore, the chestnut picking device 200 comprises a chestnut picking brush roller 201, a swing arm motor 202, a swing arm motor support 203, a crank swing arm mechanism 204, a swing arm 205, a swing arm support 206, a second brush roller motor 209, a floating frame 210, and a picking net strip 207.

[0031] The floating frame 210 is installed in the rear frame 602 via the second hinge 211. The second brush roller motor 209 is installed on the floating frame 210 via the motor mounting bracket 208 and drives the chestnut picking brush roller 201. One end of the picking net strip 207 is fixed to the floating frame 210, and the other end is connected to the swing rod 205. The swing rod motor 202 is installed on the floating frame 210 via the swing rod motor base 203, and the swing rod motor 202 drives the crank rocker mechanism 204 to realize the back-and-forth swing of the swing rod 205.

[0032] Furthermore, the conveying device 300 includes a lifting motor 301, a lifting chain plate side plate 302, a chain support plate 303, a driven sprocket 304, a driven shaft 305, a drive shaft 306, a rotating shaft seat 307, a drive sprocket 308, and a chain 309. The lifting chain plate side plate 302 is installed inside the push frame 603. The lifting motor 301 is fixed on the push frame 603, and its output end extends into the lifting chain plate side plate 302. It drives the drive shaft 306 through the rotating shaft 307. The driven shaft 305 is rotatably installed at the other end of the lifting chain plate side plate 302. The drive sprocket 308 is installed on the drive shaft 306, and the driven sprocket 304 is installed on the driven shaft 305. The driven shaft 305 is driven by a set of chains 309. The connecting support plate 303 is installed on the chain 309.

[0033] Furthermore, the collecting device 400 is a detachable movable frame;

[0034] Furthermore, the walking device 700 includes a DC geared motor 701, a front drive wheel 702, and a rear omnidirectional wheel 703; the DC geared motor 701 drives the front drive wheel 702 to provide the overall forward power of the device, and the rear omnidirectional wheel 703 is installed below the rear frame 602.

[0035] The invention features a simple overall structure. The front end picks up chestnut buds, while the rear end picks up chestnuts, allowing for separate picking in two stages. This allows the mechanism to better adapt to different materials. The significance of separate picking is that it increases the ground clearance of the comb when picking up chestnut buds, avoiding the situation where the comb teeth need to be in near-ground contact to pick up individual chestnuts, which could cause sand, straw, and other debris to accumulate and clog the ground. The designed swing mechanism collects the scattered chestnuts left over from the previous stage, and finally, they are all collected together by the conveyor device. Both picking stages can adapt to changes in terrain, facilitating the machine's movement between hilly and mountainous areas.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the scope defined by the spirit of the invention.

Claims

1. A chestnut picking machine, characterized in that: It includes a chestnut bud picking device (100), a chestnut picking device (200), a conveying device (300), a collecting device (400), a walking device (700), a frame (600), and a power battery (500). The frame (600) consists of a front frame (601), a rear frame (602), and a push frame (603). The front frame (601) is connected to the front end of the rear frame (602) via a first hinge (105). The push frame (603) is welded and fixed above the rear end of the rear frame (602). The chestnut bud picking device (100) is installed inside the front frame (601), and the chestnut picking device (200) is installed inside the rear frame (602) via a second hinge (211). The conveying device (300) is installed on the front beam of the push frame (603). The collecting device (400) is installed at the rear end of the rear frame (602) and is located below the conveying device (300). The power battery (500) is fixed at the rear end of the rear frame (602), and the walking device (700) is mounted on the lower end face of the rear frame (602). The chestnut bud picking device (100) includes a chestnut bud picking brush roller (101), floating comb teeth, and an arc-shaped limiting groove plate (104); the arc-shaped limiting groove plate (104) is fixed inside the front frame (601), one end of the floating comb teeth is rotatably installed in a bearing with a seat (109), and the other end is slidably installed in the arc-shaped limiting groove plate (104). A bolt and nut locking mechanism is placed in the arc-shaped limiting groove plate (104) to realize the low point limiting of the floating comb teeth; The chestnut picking device (200) includes a chestnut picking brush roller (201), a swing arm motor (202), a crank rocker mechanism (204), a swing arm (205), a floating frame (210), and a picking net (207); one end of the picking net (207) is fixed to the floating frame (210), and the other end is connected to the swing arm (205); the swing arm motor (202) drives the crank rocker mechanism (204) to swing the swing arm (205) back and forth; The chestnut bud picking device (100), chestnut picking device (200), conveying device (300) and walking device (700) are all electrically connected to the power battery (500).

2. The chestnut picking machine according to claim 1, characterized in that: The chestnut bud picking device (100) also includes a first brush roller motor (103); the chestnut bud picking brush roller (101) is rotatably mounted on the front frame (601) via a seated bearing (109), and the first brush roller motor (103) is fixed on the front frame (601) via a motor support (102) for driving the chestnut bud picking brush roller (101).

3. A chestnut picking machine according to claim 2, characterized in that: The floating comb teeth include toothed forks (106), connecting pieces (107), and connecting plates (108); a plurality of toothed forks (106) are welded at equal intervals on the connecting pieces (107), the connecting plates (108) are disposed at both ends of the connecting pieces (107), the ends of the connecting plates (108) are rotatably mounted on bearings (109), and the sides of the connecting plates (108) are slidably embedded in the arc-shaped limiting grooves (104).

4. A chestnut picking machine according to claim 1, characterized in that: The chestnut picking device (200) also includes a second brush roller motor (209). The floating frame (210) is installed in the rear frame (602) via a second hinge (211). The second brush roller motor (209) is installed on the floating frame (210) via a motor mounting bracket (208) and drives the chestnut picking brush roller (201).

5. A chestnut picking machine according to claim 1, characterized in that: The conveying device (300) includes a lifting motor (301), a lifting chain plate side plate (302), a chain support plate (303), a driven sprocket (304), a driven shaft (305), a drive shaft (306), a rotating shaft seat (307), a drive sprocket (308), and a chain (309); the lifting chain plate side plate (302) is installed inside the hand-push frame (603), and the lifting motor (301) is fixed on the hand-push frame (603), with its output end extending into... In the lifting chain plate side plate (302), the drive shaft (306) is driven by the rotating shaft seat (307). The driven shaft (305) is rotatably installed at the other end of the lifting chain plate side plate (302). The drive sprocket (308) is installed on the drive shaft (306), and the driven sprocket (304) is installed on the driven shaft (305). The driven shaft (305) is driven by a set of chains (309). The chain support plate (303) is installed on the chain (309).

6. A chestnut picking machine according to claim 1, characterized in that: The collecting device (400) is a detachable movable frame.

7. A chestnut picking machine according to claim 1, characterized in that: The walking device (700) includes a DC geared motor (701), a front drive wheel (702), and a rear omnidirectional wheel (703); the DC geared motor (701) drives the front drive wheel (702) to provide the overall forward power of the device, and the rear omnidirectional wheel (703) is installed under the rear frame (602).

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