A flexible pulling type thin shell pecan picking machine carried by a mountain unicycle

Abstract

This utility model discloses a flexible, pull-type thin-shelled pecan harvester mounted on a mountain unicycle, comprising a harvester frame, a flexible locking device, a pulling device, a pulling power device, a harvester handle, a walking device, and a support device. The harvester wraps the tree trunk with flexible material to prevent damage to the thin-shelled pecan trunk during the pulling process, while increasing the friction between the trunk and the rope during the pulling process. A crank rocker provides a certain angle of reciprocating swing to pull the trunk. The rocker has three extreme amplitudes of 10 cm, 20 cm, and 30 cm, which can be switched arbitrarily according to different trunk sizes, facilitating the detachment of thin-shelled pecans under inertia. The rack-and-pinion lifting support and the convex head lifting support are placed at the front and rear, which can be used to smoothly stop under the rugged terrain conditions of the mountains and absorb some of the reaction force generated by the pulling. This solves the problems of low efficiency, high labor costs, and difficult transportation when manually harvesting thin-shelled pecans in mountainous terrain.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural product primary processing machinery technology, specifically relating to a mountain unicycle-mounted flexible traction type thin-shelled walnut harvesting machine. Background Technology

[0002] Pecans, also known as thin-shelled pecans, originated in the United States and Mexico, where a highly intensive and large-scale industry has been established. The standardized planting methods used in their native regions (such as uniform row spacing and regular tree shapes) provide ideal conditions for large-scale mechanized operations. However, my country's mechanization level is very low, especially in Zhejiang and Anhui provinces, where pecan cultivation is mainly concentrated in low hills, gentle slopes, and mountainous areas. From fruit harvesting to processing, all operations are done manually, resulting in low efficiency and significantly higher nut production costs compared to imports. This makes it impossible to substitute imported nuts, preventing the pecan industry from developing into a large-scale industry. As a global industry, and with my country being a major consumer of pecans, requiring nearly 50,000 tons of nuts to be imported annually using foreign exchange, the pecan industry in China is forced to become mechanized. Mechanization has become a bottleneck for the development of the pecan industry. In stark contrast to the enthusiasm for planting, the harvesting of pecans in my country still heavily relies on manual labor. Manually climbing trees and using bamboo poles to knock the nuts down is inefficient, labor-intensive, dangerous, and costly. Harvesting costs can account for more than 50% of total production costs, severely squeezing the profitability of planting.

[0003] The mountain unicycle-mounted flexible traction-type thin-shelled pecan harvester solves the mobility problem by using a mountain unicycle, and addresses the adaptability and effectiveness of vibration harvesting through a combination of crank-rocker and steel cable traction, as well as multi-level adjustable amplitude and traction frequency adjustment. This technology is one of the key equipment technologies for breaking through the bottlenecks in the development of my country's thin-shelled pecan industry, achieving cost reduction, efficiency improvement, and sustainable development, and has significant research value and promotional significance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible, pull-type thin-shelled pecan harvester mounted on a mountain unicycle. It uses a gasoline engine as the power source for the pull, with belt drive as the transmission method. After speed reduction via a reducer, the power is transmitted to the rotating shaft of the pull device. A crank-rocker achieves high-frequency amplitude, which can be adjusted in multiple stages (10 cm, 20 cm, and 30 cm) depending on the size of the tree trunk. The frequency can be adjusted using a knob on the handlebar. A rope locking device connected to the rocker transmits the amplitude energy to the tree trunk. The rope is wrapped with flexible materials such as rubber at the trunk connection point to prevent damage and increase friction. Under the high-frequency pull, the thin-shelled pecans eventually fall off due to inertia. The lower layer of the frame houses the walking system and support device. A hub motor provides power for the unicycle's movement, and the support device's height can be adjusted arbitrarily to adapt to mountainous terrain and ensure better stability of the unicycle.

[0005] To achieve the objective of this utility model, the technical solution adopted is as follows: A mountain unicycle-mounted flexible traction-type thin-shelled walnut harvester includes a harvester frame, a harvester handle, a walking device, and a support device. It also includes a traction system, which comprises a flexible locking device, a traction device, and a traction power device. The traction device and the traction power device are fixedly installed at the upper center of the harvester frame. The traction device is installed in front of the traction power device, and its front end is connected to the flexible locking device. The walking device is installed at the lower center of the harvester frame. The support devices are installed on both sides of the walking device below the harvester frame. The harvester handle is fixedly installed at the rear end of the harvester frame.

[0006] Preferably, the flexible locking device includes a rubber sleeve, a rubber base, a locking rope, and a locking block. The locking rope is installed on the rubber base by locking bolts. The rubber sleeve is movably fitted around the outer periphery of the locking rope near the rubber base and works in conjunction with the rubber base and the locking rope to lock the walnut tree trunk. The locking block is rotatably fitted onto the pulling device, and both ends of the locking rope are movably fitted onto the locking block.

[0007] Furthermore, the locking block includes a locking handle, an H-shaped locking block, and a lower locking block. The locking handle is rotatably fitted onto the H-shaped locking block, and the H-shaped locking block is connected to the lower locking block by fixing bolts. The two ends of the locking rope are movably connected to the locking handle and the H-shaped locking block of the locking block, respectively. The locking handle rotates on the H-shaped locking block to lock the two ends of the locking rope.

[0008] Preferably, the pulling device is connected to the pulling power device. The pulling device includes a pulling rocker, a pulling connecting rod, a pulling crank, a bearing seat, a tension wheel, a pulling base, and a rotating shaft. The pulling base is fixedly installed on the upper surface of the harvesting machine frame. The pulling rocker is rotatably installed on the pulling base. A tension wheel that rotates in conjunction with the rotating shaft is installed on the pulling base. The pulling rocker has three amplitude adjustment holes. Locking blocks of a flexible locking device are installed in the amplitude adjustment holes through fixing bolts. The three amplitude adjustment holes correspond to three different extreme amplitudes during operation, which are 10 cm, 20 cm, and 30 cm, respectively. The extreme amplitude can be switched arbitrarily according to the size of the tree trunk. One end of the pulling connecting rod is connected to the pulling rocker, and the other end is connected to the pulling crank. The other end of the pulling crank is fitted with the rotating shaft. The rotating shaft is movably fitted on the bearing seat, and the bearing seat is fixedly installed on the pulling base.

[0009] Preferably, the pulling power unit is mounted on the rear end of the tractor frame and includes a tractor handle. The pulling power unit comprises a large pulley assembly, a reducer, a gasoline engine, and a small pulley assembly. The large pulley assembly is connected to the gasoline engine via a drive belt and coaxially connected to the upper large transmission gear inside the reducer, with a transmission ratio of 1:1. The small pulley assembly is coaxially connected to the lower small transmission gear inside the reducer, with a transmission ratio of 1:1. The reducer has a reduction ratio of 1:8. The small pulley assembly on the pulling power unit is connected via a drive belt to a small pulley assembly mounted on the rotating shaft of the pulling unit. The gasoline engine is fixedly mounted on the rear side of the frame, with a maximum output speed of 3600 r / min and a power output of 7.5 kW. The gasoline engine drives the large pulley set to rotate via a transmission belt. The large pulley set drives the large transmission gear at the upper end of the reducer to rotate coaxially. The large transmission gear meshes with the small transmission gear and rotates. The small transmission gear at the lower end of the reducer drives the small pulley set on the pulling power device to rotate. The small pulley set on the pulling power device drives the small pulley set on the rotating shaft of the pulling device to rotate via a transmission belt.

[0010] Preferably, the handrail of the harvester is an extension of the main body of the harvester frame, and is integratedly connected at the rear end of the harvester frame. The handrail includes a motor knob, a brake handle, and a gasoline engine knob. The motor knob is fixedly sleeved on one side of the handrail, the brake handle is fixedly sleeved on the same side of the handrail as the motor knob, and the gasoline engine knob is fixedly sleeved on the other side of the handrail. The walking speed of the traveling device is controlled by rotating the motor knob, the braking of the traveling device is controlled by pressing the brake handle, and the output speed of the gasoline engine of the pulling power device is controlled by rotating the gasoline engine knob.

[0011] Preferably, the walking device is installed under the frame of the reamer. The walking device includes a hub motor, a braking module, a battery, and walking tires. The hub motor is rotatably mounted on an L-shaped steel plate under the frame of the reamer, and the walking tires are fitted onto the outer surface of the hub motor. The hub motor has a power of 1200 W, and its speed is controlled by a motor knob on the reamer's handlebar. The braking module is fixedly installed on one side of the hub motor to provide emergency braking during the reamer's operation. Braking is achieved through a brake handle on the reamer's handlebar. The battery is fixedly installed on a battery base under the frame of the reamer. The battery capacity is 32 Ah, the supply voltage is 72 V, and the reference range is 70-100 km under no-load conditions and 40-70 km under full load conditions.

[0012] Preferably, the support device includes a rack-and-pinion lifting bracket and a convex-head lifting bracket. The rack-and-pinion lifting bracket is installed below the rear end of the mining machine frame. The rack-and-pinion lifting bracket includes a lifting rack, a lifting gear, a rotating handle, a support sleeve, and a brake ring. The lifting rack is fixedly installed on the lower surface of the mining machine frame. The support sleeve is slidably fitted with the lifting rack. A gear mounting bracket is fixedly installed on the support sleeve. The rotating handle is coaxially fixedly connected to the lifting gear and is movably fitted on the gear mounting bracket of the support sleeve. The lifting gear and the lifting rack are meshed and connected for transmission. When the rotating handle is rotated counterclockwise, the support sleeve rises, and vice versa. The brake ring is movably fitted on the support sleeve. When the lifting rack rises or falls to a designated position, the brake ring is activated so that the triangular tip of the brake ring meshes with the groove on the rear side of the lifting rack for braking.

[0013] Furthermore, the convex-head lifting support is rotatably installed in the lifting support sleeve below the front end of the mining machine frame. The convex-head lifting support includes a triangular support, a movable support rod, a support convex head, and a wedge block. The triangular support is rotatably sleeved in the lifting support sleeve below the front end of the mining machine frame. The movable support rod is movably sleeved in the support storage sleeve in the middle of the triangular support. The support convex head is movably installed in the convex head mounting hole on the surface of the movable support rod. The rear end of the support convex head is fixedly connected to a convex head spring fixedly installed in the convex head mounting hole. The movable support rod is raised and lowered by pressing the support convex head and simultaneously pushing and pulling the movable support rod. The wedge block is fixedly installed on the triangular support. When the triangular support rotates to a certain angle so that the wedge block contacts the mining machine frame, it is the maximum rotation angle of the convex-head lifting support. The convex-head lifting support is in the retracted state when the traveling device is moving, that is, the convex-head lifting support rotates counterclockwise to the horizontal position, and the movable support rod retracts to its shortest position and contacts the support storage hook below the mining machine frame.

[0014] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a mountain unicycle-mounted flexible traction-type thin-shelled pecan harvester, the beneficial effects of which are: This utility model relates to a mountain-mounted, wheelbarrow-mounted, flexible, pull-type thin-shelled pecan harvester. The trunk is wrapped with a flexible material to prevent damage during the pulling process, while also increasing friction between the trunk and the rope. A crank-rocker provides a reciprocating oscillation at a specific angle to pull the trunk. The rocker has three extreme amplitudes: 10cm, 20cm, and 30cm, which can be switched arbitrarily depending on the size of the trunk. This facilitates the pecans falling off due to inertia. The two power units operate independently. The rack-and-pinion lifting bracket and the convex-head lifting bracket are positioned front and rear, allowing for smooth stopping even on rugged mountain terrain. The machine also absorbs some of the reaction force generated during the pulling process, effectively solving the problems of low efficiency, high labor costs, and difficult transportation associated with manual harvesting of thin-shelled pecans in mountainous terrain. Attached Figure Description

[0015] Figure 1 This is a side view of a preferred embodiment of the flexible, pull-type thin-shelled walnut harvesting machine for mountain single-wheel vehicles proposed in this utility model. Figure 2 This is a schematic diagram of the flexible locking device structure of the mountain unicycle-mounted flexible traction thin-shelled walnut harvesting machine proposed in this utility model. Figure 3 This is a schematic diagram of the locking block structure of the mountain unicycle-mounted flexible traction thin-shelled walnut harvesting and threshing machine proposed in this utility model. Figure 4 This is a schematic diagram of the pulling device structure of the mountain unicycle-mounted flexible pulling thin-shelled walnut harvesting machine proposed in this utility model; Figure 5 This is a schematic diagram of the pulling system structure of the mountain unicycle-mounted flexible pulling thin-shelled walnut harvesting machine proposed in this utility model; Figure 6 This is a schematic diagram of the axle side structure of the mountain unicycle-mounted flexible traction thin-shelled walnut harvester proposed in this utility model; Figure 7 This is a schematic diagram of the rack and pinion lifting support structure of the mountain unicycle vehicle-mounted flexible traction thin-shelled walnut harvesting machine proposed in this utility model. Figure 8 This is a schematic diagram of the convex-head lifting support structure of the mountain unicycle vehicle-mounted flexible traction thin-shelled walnut harvesting machine proposed in this utility model. Legend: 1. Mining machine frame; 2. Flexible locking device; 3. Pulling device; 4. Pulling power unit; 5. Mining machine handrail; 6. Walking device; 7. Support device; 21. Rubber sleeve; 22. Rubber base; 23. Rope; 24. Locking block; 241. Locking handle; 242. H-type locking block; 243. Lower locking block; 31. Pulling rocker arm; 32. Pulling connecting rod; 33. Pulling crank; 34. Bearing seat; 35. Tensioning wheel; 36. Pulling base; 37. Rotating shaft; 41. Large pulley assembly; 42. Reducer; 43. Gasoline engine; 44. Small pulley assembly; 51. Motor knob; 52. Brake handle; 53. Gasoline engine knob; 61. Hub motor; 62. Brake module; 63. Battery; 71. Rack and pinion lifting bracket; 72. Convex head lifting bracket; 711. Lifting rack; 712. Gear; 713. Rotating handle; 714. Support sleeve; 715. Brake ring; 721. Triangular bracket; 722. Moving support rod; 723. Bracket protrusion; 724. Wedge block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Example 1

[0019] like Figure 1 As shown, a mountain unicycle-mounted flexible traction-type thin-shelled walnut harvester includes a harvester frame 1, a harvester handlebar 5, a walking device 6, a support device 7, and a traction system. The traction system includes a flexible locking device 2, a traction device 3, and a traction power device 4. The traction device 3 and the traction power device 4 are fixedly installed at the upper middle position of the harvester frame 1. The traction device 3 is installed in front of the traction power device 4, and the front end of the traction device 3 is connected to the flexible locking device 2. The walking device 6 is installed at the lower middle position of the harvester frame 1. The support device 7 is installed on both sides of the walking device 6 below the harvester frame 1. The harvester handlebar 5 is fixedly installed at the rear end of the harvester frame 1.

[0020] like Figure 2 As shown, a flexible, pull-type thin-shelled pecan harvester mounted on a mountain unicycle includes a flexible locking device 2 comprising a rubber sleeve 21, a rubber base 22, a locking rope 23, and a locking block 24. The locking rope 23 is mounted on the rubber base 22 via locking bolts. The rubber sleeve 21 is movably fitted around the outer periphery of the locking rope 23 near the rubber base 22, working in conjunction with the rubber base 22 and the locking rope 23 to lock the pecan trunk. The locking block 24 is rotatably fitted onto the pulling device 3. Both ends of the locking rope 23 are movably fitted onto the locking block 24. The rubber sleeve 21 and the rubber base 22 are both made of conventionally used flexible material with a cushioning effect around the trunk fixing area, preventing damage to the thin-shelled pecan trunk during the pulling process and increasing the friction between the trunk and the rope during the pulling process, which facilitates the thin-shelled pecans falling off under inertia.

[0021] like Figure 2 , 3As shown, a flexible, pull-type thin-shelled walnut harvester mounted on a mountain unicycle includes a locking block 24 comprising a locking handle 241, an H-shaped locking block 242, and a lower locking block 243. The locking handle 241 is rotatably fitted onto the H-shaped locking block 242, and the H-shaped locking block 242 is connected to the lower locking block 243 by fixing bolts. The two ends of the locking rope 23 are movably connected to the locking handle 241 and the H-shaped locking block 242 of the locking block 24, respectively. The locking handle 241 rotates on the H-shaped locking block 242 to lock the two ends of the locking rope 23.

[0022] like Figure 2 , 3 As shown in Figure 4, a flexible, pull-type thin-shelled walnut harvester mounted on a mountain unicycle includes a pull device 3 connected to a pull power device 4. The pull device 3 includes a pull rocker 31, a pull connecting rod 32, a pull crank 33, a bearing seat 34, a tension wheel 35, a pull base 36, and a rotating shaft 37. The pull base 36 is fixedly installed on the upper surface of the harvester frame 1, and the pull rocker 31 is rotatably mounted on the pull base 36. The pull rocker 31 has three amplitude adjustment holes, and locking blocks 24 of a flexible locking device 2 are installed in the amplitude adjustment holes through fixing bolts. The three amplitude adjustment holes correspond to three different extreme amplitudes during operation, which are 10 cm, 20 cm, and 30 cm, respectively. cm, the limit amplitude can be switched arbitrarily according to the different sizes of the tree trunk; one end of the pulling rod 32 is connected to the pulling rocker 31, and the other end is connected to the pulling crank 33. The other end of the pulling crank 33 is connected to the rotating shaft 37. The rotating shaft 37 is movably mounted on the bearing seat 34. The bearing seat 34 is fixedly installed on the pulling base 36. The tension wheel 35 is installed on the pulling base 36 to work in conjunction with the rotating shaft 37. As a result, the pulling crank 33 rotates, it drives the pulling rocker 31 to swing back and forth at a certain angle. The swing speed can be controlled by the harvester handle 5. The speed can be adjusted arbitrarily according to the size of the tree trunk. The swing energy is transmitted to the tree trunk through the locking rope 23. Under the high frequency amplitude, the thin-shelled pecan detaches from the tree trunk due to inertia, completing the harvesting of the thin-shelled pecan.

[0023] like Figure 4 , 5As shown, a mountain unicycle-mounted flexible traction-type thin-shelled walnut harvester is disclosed. A harvester handle 5 is installed on the harvester frame 1 at the rear of the traction power unit 4. The traction power unit 4 includes a large pulley assembly 41, a reducer 42, a gasoline engine 43, and a small pulley assembly 44. The large pulley assembly 41 is connected to the gasoline engine 43 via a transmission belt and is coaxially connected to the upper large transmission gear inside the reducer 42, with a transmission ratio of 1:1. The small pulley assembly 44 is coaxially connected to the lower small transmission gear inside the reducer 42, with a transmission ratio of 1:1. The reducer 42 has a reduction ratio of 1:8. The small pulley assembly 44 on the traction power unit 4 is connected to a small pulley assembly 44 installed on the rotating shaft 37 of the traction device 3 via a transmission belt. The gasoline engine 43 is fixedly installed on the rear side of the frame, with a maximum output speed of 3600 r / min and a power of 7.5 kW. The gasoline engine 43 drives the large pulley assembly 41 to rotate via the transmission belt. The large pulley assembly 41 drives the large transmission gear at the upper end of the reducer 42 to rotate coaxially. The large transmission gear meshes with the small transmission gear and rotates. The small transmission gear at the lower end of the reducer 42 drives the small pulley assembly 44 on the pulling power device 4 to rotate. The small pulley assembly 44 on the pulling power device 4 drives the small pulley assembly 44 on the rotating shaft 37 of the pulling device 3 to rotate via the transmission belt. The high-speed rotation output of the gasoline engine 43 is transmitted to the rotating shaft 37 at a lower speed under the action of the reducer 42 to complete the pulling action.

[0024] like Figure 5 , 6 As shown, a mountain unicycle-mounted flexible traction thin-shelled walnut harvester is disclosed. The harvester handle 5 is an extension of the main body of the harvester frame 1 and is integrally connected to the rear end of the harvester frame 1. The harvester handle 5 includes a motor knob 51, a brake handle 52, and a gasoline engine knob 53. The motor knob 51 is fixedly sleeved on one side of the harvester handle 5, the brake handle 52 is fixedly sleeved on the harvester handle 5 on the same side as the motor knob 51, and the gasoline engine knob 53 is fixedly sleeved on the other side of the harvester handle 5. The walking speed of the walking device 6 is controlled by rotating the motor knob 51, the brake of the walking device 6 is controlled by pressing the brake handle 52, and the output speed of the gasoline engine 43 of the traction power device 4 is controlled by rotating the gasoline engine knob 53.

[0025] like Figure 6As shown, a flexible, pull-type thin-shelled walnut harvester mounted on a mountain unicycle has a walking device 6 installed under the harvester frame 1. The walking device 6 includes a hub motor 61, a braking module 62, a battery 63, and walking tires. The hub motor 61 is rotatably mounted on an L-shaped steel plate under the harvester frame 1, and the walking tires are fitted onto the outer surface of the hub motor 61. The hub motor 61 has a power of 1200 W, and its speed is controlled by a motor knob 51 on the harvester handle 5. The braking module 62 is fixedly installed on one side of the hub motor 61 to provide emergency braking during the unicycle's movement. Braking is achieved through a brake handle 52 on the harvester handle 5. The battery 63 is fixedly installed on a battery base under the harvester frame 1. The battery 63 has a capacity of 32 Ah, a supply voltage of 72 V, and a reference range of 70-100 km under no-load conditions and 40-70 km under full-load conditions.

[0026] like Figure 6 , 7 As shown, a flexible, pull-type thin-shelled pecan harvester mounted on a mountain unicycle includes a support device 7 comprising a rack-and-pinion lifting bracket 71 and a convex-head lifting bracket 72. The convex-head lifting bracket 72 is rotatably mounted inside a lifting bracket sleeve located below the front end of the harvester frame 1. It provides support when the mountain unicycle is parked. More importantly, when pulling the thin-shelled pecan trees for harvesting, the convex-head lifting bracket 72 is at a certain angle to the vertical direction, maintaining contact with the ground to absorb some of the reaction force from the pulling action, balancing the vehicle and reducing the strain on the operator's hands. The rack-and-pinion lifting bracket 71 is installed below the rear end of the harvester frame 1 and includes a lifting rack 711, a lifting gear 712, a rotating handle 713, and a support sleeve. 714 and brake ring 715; the lifting rack 711 is fixedly installed on the lower surface of the mining machine frame 1, the support sleeve 714 is slidably sleeved with the lifting rack 711, the support sleeve 714 is fixedly installed with a gear mounting bracket, the rotating handle 713 is coaxially fixedly connected with the lifting gear 712 and is movably sleeved on the gear mounting bracket of the support sleeve 714, the lifting gear 712 is meshed with the lifting rack 711 for transmission, when the rotating handle 713 is rotated counterclockwise, the support sleeve 714 rises, and vice versa; the brake ring 715 is movably sleeved on the support sleeve 714, when the lifting rack 711 rises or falls to the designated position, the brake ring 715 is actuated so that the triangular tip of the brake ring 715 meshes with the rack groove on the rear side of the lifting rack 711 for braking.

[0027] like Figure 6 , 7As shown in Figure 8, a mountain unicycle-mounted flexible traction-type thin-shelled walnut harvester has a convex-head lifting bracket 72 rotatably installed in a lifting bracket sleeve below the front end of the harvester frame 1. The convex-head lifting bracket 72 includes a triangular bracket 721, a movable support rod 722, a bracket convex head 723, and a wedge block 724. The triangular bracket 721 is rotatably sleeved in the lifting bracket sleeve below the front end of the harvester frame 1. The movable support rod 722 is movably sleeved in a bracket receiving sleeve in the middle of the triangular bracket 721. The bracket convex head 723 is movably installed in a convex head mounting hole on the surface of the movable support rod 722. The rear end of the bracket convex head 723... A convex spring is fixedly connected and installed in the convex mounting hole. The moving support rod 722 is raised and lowered by pressing the convex head 723 of the bracket and simultaneously pushing and pulling the moving support rod 722. The wedge block 724 is fixedly installed on the triangular bracket 721. When the triangular bracket 721 rotates a certain angle so that the wedge block 724 contacts the mining machine frame 1, it is the maximum rotation angle of the convex head lifting bracket 72. The convex head lifting bracket 72 is in the retracted state when the traveling device 6 is traveling. That is, the convex head lifting bracket 72 rotates counterclockwise to the horizontal position, and the moving support rod 722 retracts to the shortest position and contacts the bracket storage hook under the mining machine frame 1.

[0028] The working principle is as follows: When not performing mining operations, the hub motor 61 is controlled by the motor knob 51 on the handlebar 5 of the mining machine. When the hub motor 61 rotates, it drives the walking tires to rotate, thereby driving the entire mountain unicycle to move. The brake module 62 is controlled by the brake handle 52 on the handlebar 5 of the mining machine to brake the hub motor 61 and the walking tires. The hub motor 61 and the brake module 62 are powered by the battery 63. Normally, regardless of whether the walking device 6 is working, the lifting gear 712 will be driven to rotate by rotating the handle 713 clockwise. This will cause the lifting gear 712, which meshes with the lifting rack 711, to drive the support sleeve 714 to descend to a suitable height. Furthermore, by moving the brake ring 715, the triangular tip of the brake ring 715 will mesh with the rack groove on the rear side of the lifting rack 711 to brake, so that the rack-type lifting bracket 71 maintains a certain height, which, together with the walking device 6, maintains the upright stability of the mining machine. When the machine moves to the appropriate position, the support sleeve 714 is raised or lowered by rotating the handle 713 clockwise or counterclockwise to drive the lifting gear 712 to rotate. The rack and pinion lifting bracket 71 is adjusted to the appropriate height. Then, the moving support rod 722 is raised or lowered by pressing the bracket protrusion 723 and simultaneously pushing and pulling the moving support rod 722. The triangular bracket 721 rotates at a certain angle so that the wedge block 724 contacts the mining machine frame 1, thereby unfolding the protrusion type lifting bracket 72 to maintain the upright and stable position of the mining machine. Loosen the locking handle 241 of the locking block 24, remove the locking rope 23 from the H-shaped locking block 242, and pass the locking rope 23 around the hickory branch that needs to be harvested. Use the rubber sleeve 21 fitted on the locking rope 23 and the rubber base 22 to lock the branch. At this time, the rubber sleeve 21 and the rubber base 22 form a locking buckle to tightly lock the hickory branch and fix it with the locking bolt. Insert the locking rope 23 into the H-shaped locking block 242 of the locking block 24, and achieve a fixed connection between the locking rope 23 and the locking block 24 by locking the locking handle 241. The locking block 24 is fixedly connected to the pulling rocker arm 31 by fixing bolts through the H-shaped locking block 242 and the lower locking block 243. The pulling rocker arm 31 is provided with three amplitude adjustment holes. The H-shaped locking block 242 and the lower locking block 243 of the locking block 24 are installed and connected to the amplitude adjustment holes by fixing bolts. The three amplitude adjustment holes correspond to three different extreme amplitudes during operation. The three extreme amplitudes are 10 cm, 20 cm and 30 cm respectively. The extreme amplitude can be switched arbitrarily according to the size of the tree trunk, so as to realize the installation and connection of the flexible locking device 2 and the pulling device 3. The small pulley group 44 on the drive shaft extending from the lower end of the reducer 42 and the small pulley group 44 on the rotating shaft 37 of the pulling device 3 are connected by a transmission belt, so as to realize the installation and connection of the pulling device 3 and the pulling power device 4. The tension of the transmission belt is adjusted by the tension wheel 35. The gasoline engine 43 is started, and the output speed of the gasoline engine 43 in the pulling power unit 4 is controlled by rotating the gasoline engine knob 53. The gasoline engine 43 drives the large pulley assembly 41 to rotate via the transmission belt. The large pulley assembly 41 drives the large transmission gear at the upper end inside the reducer 42 to rotate. The large transmission gear at the upper end inside the reducer 42 drives the small transmission gear at the lower end inside the reducer 42 to rotate, which in turn drives the small pulley assembly 44 mounted on the transmission shaft extending from the lower end inside the reducer 42 to rotate. This, in turn, drives the pulley assembly 44 mounted on the pulley 42 via the transmission belt. The small pulley group 44 on the rotating shaft 37 of the pulling device 3 rotates, which in turn drives the rotating shaft 37 of the pulling device 3 to rotate. The rotation of the rotating shaft 37 drives the pulling crank 33 to move back and forth. The pulling crank 33 transmits the back and forth motion to the pulling rocker arm 31 through the pulling connecting rod 32. In turn, the pulling rocker arm 31 drives the locking block 24 to move back and forth. The locking block 24 drives the rubber sleeve 21, the rubber base 22, and the locking rope 23 to move back and forth, ultimately realizing the pulling-type harvesting by driving the branches and trunk of the hickory tree to move back and forth.

[0029] This invention is an improvement on the original wheelbarrow. It achieves fruit drop by using the inertia of high-frequency pulling on the tree trunk. It has two power supply methods: electric drive and gasoline engine drive. The wheelbarrow's walking device is driven by an electric motor, while the pulling device is driven by a gasoline engine. The two power methods do not interfere with each other, improving the stability of the machine's operation.

[0030] A gasoline engine is used as the power unit for pulling, and belt drive is used as the transmission method. After being reduced in speed by a reducer, the power is transmitted to the rotating shaft of the pulling device. High-frequency amplitude is achieved through a crank rocker arm. Depending on the size of the tree trunk, the amplitude can be adjusted in multiple stages on the rocker arm: 10 cm, 20 cm, and 30 cm. The frequency can be adjusted by a knob on the handlebar. The amplitude energy is transmitted to the tree trunk through a rope locking device connected to the rocker arm. The rope connection to the tree trunk is wrapped with flexible materials such as rubber to avoid damaging the tree trunk and to increase friction. Under the action of high-frequency pulling, the thin-shelled pecan eventually falls off due to inertia. The lower layer of the frame contains the walking system and support device. The hub motor provides power for the unicycle to move, and the support device can be height adjusted arbitrarily to adapt to mountainous terrain and allow the unicycle to stop more stably.

[0031] In this invention, a mountain-mounted, vehicle-mounted, flexible, pull-type thin-shelled pecan harvester wraps the tree trunk with flexible material to prevent damage during the pulling process. This also increases the friction between the trunk and the rope during pulling. A crank-rocker provides a reciprocating swing at a certain angle to pull the trunk. The rocker has three extreme amplitudes of 10 cm, 20 cm, and 30 cm, which can be switched arbitrarily depending on the size of the trunk, facilitating the pecans to fall off under inertia. The two power units operate independently. The rack-and-pinion lifting bracket and the convex-head lifting bracket are positioned front and rear, perfectly adapting to the uneven terrain of mountainous areas for smooth stopping. This absorbs some of the reaction force generated during pulling, effectively solving the problems of low efficiency, high labor costs, and difficult transportation associated with manual harvesting of thin-shelled pecans in mountainous terrain.

[0032] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mountain-mounted, wheelbarrow-mounted, flexible, pull-type thin-shelled walnut harvester, comprising a harvester frame (1), a harvester handle (5), a walking device (6), and a support device (7), characterized in that, It also includes a pulling system, which includes a flexible locking device (2), a pulling device (3) and a pulling power device (4). The pulling device (3) and the pulling power device (4) are fixedly installed in the middle position above the mining machine frame (1). The pulling device (3) is installed in front of the pulling power device (4), and the front end of the pulling device (3) is connected to the flexible locking device (2). The flexible locking device (2) includes a rubber sleeve (21), a rubber base (22), a locking rope (23), and a locking block (24). The locking rope (23) is installed on the rubber base (22) by locking bolts. The rubber sleeve (21) is movably sleeved on the outer periphery of the locking rope (23) near the rubber base (22) and works with the rubber base (22) and the locking rope (23) to lock the walnut tree trunk. The locking block (24) is rotatably sleeved on the pulling device (3). The two ends of the locking rope (23) are movably sleeved with the locking block (24).

2. The mountain-mounted, wheelbarrow-mounted, flexible, traction-type thin-shelled pecan harvester according to claim 1, characterized in that, The walking device (6) is installed in the middle position below the mining machine frame (1), the support device (7) is installed on both sides of the walking device (6) below the mining machine frame (1), and the mining machine handrail (5) is fixedly installed at the rear end of the mining machine frame (1).

3. The mountain-mounted, wheelbarrow-mounted, flexible, traction-type thin-shelled pecan harvester according to claim 1, characterized in that, The locking block (24) includes a locking handle (241), an H-type locking block (242), and a lower locking block (243). The locking handle (241) and the H-type locking block (242) are rotatably sleeved together, and the H-type locking block (242) and the lower locking block (243) are connected by fixing bolts. The two ends of the locking rope (23) are respectively movably connected to the locking handle (241) and the H-type locking block (242) of the locking block (24). The locking handle (241) rotates on the H-type locking block (242) to lock the two ends of the locking rope (23).

4. The mountain wheelbarrow-mounted flexible traction type thin-shelled pecan harvester according to claim 1, characterized in that, The pulling device (3) is installed and connected to the pulling power device (4). The pulling device (3) includes a pulling rocker (31), a pulling connecting rod (32), a pulling crank (33), a bearing seat (34), a tension wheel (35), a pulling base (36), and a rotating shaft (37). The pulling base (36) is fixedly installed on the upper surface of the mining machine frame (1), and the pulling rocker (31) is rotatably installed on the pulling base (36). The pull rocker (31) is provided with three amplitude adjustment holes. The locking block (24) of the flexible locking device (2) is installed in the amplitude adjustment hole by fixing bolts. The three amplitude adjustment holes correspond to three different extreme amplitudes during the working process. The three extreme amplitudes are 10 cm, 20 cm and 30 cm respectively. The extreme amplitude can be switched arbitrarily according to the size of the tree trunk. One end of the pull rod (32) is connected to the pull rocker (31), and the other end is connected to the pull crank (33). The other end of the pull crank (33) is fitted with a rotating shaft (37). The rotating shaft (37) is movably fitted on the bearing seat (34). The bearing seat (34) is fixedly installed on the pull base (36). The pull base (36) is equipped with a tension wheel (35) that works in conjunction with the rotating shaft (37).

5. The mountain-mounted, wheelbarrow-mounted, flexible, traction-type thin-shelled pecan harvester according to claim 4, characterized in that, The pulling power device (4) is connected to the mining machine frame (1) at the rear end of the mining machine. The pulling power device (4) includes a large pulley group (41), a reducer (42), a gasoline engine (43) and a small pulley group (44). The large pulley group (41) is connected to the gasoline engine (43) through a transmission belt and is coaxially connected to the large transmission gear at the upper end of the reducer (42). The transmission ratio is 1:

1. The small pulley group (44) is coaxially connected to the small transmission gear at the lower end of the reducer (42) with a transmission ratio of 1:

1. The reducer (42) has a reduction ratio of 1:

8. The small pulley group (44) on the pulling power device (4) is connected to the small pulley group (44) installed on the rotating shaft (37) of the pulling device (3) through the transmission belt. The gasoline engine (43) is fixedly installed on the rear side above the vehicle frame. The gasoline engine (43) has a maximum output speed of 3600 r / min and a power of 7.5 kw. The gasoline engine (43) drives the large pulley group (41) to rotate through the transmission belt. The large pulley group (41) drives the large transmission gear at the upper end of the reducer (42) to rotate coaxially. The large transmission gear meshes with the small transmission gear and rotates. The small transmission gear at the lower end of the reducer (42) drives the small pulley group (44) on the pulling power device (4) to rotate. The small pulley group (44) on the pulling power device (4) drives the small pulley group (44) on the rotating shaft (37) of the pulling device (3) to rotate through the transmission belt.

6. The mountain wheelbarrow-mounted flexible traction type thin-shelled walnut harvester according to claim 5, characterized in that, The handrail (5) of the mining machine is an extension of the main body of the mining machine frame (1) and is integrated and set at the rear end of the mining machine frame (1). The handrail (5) includes a motor knob (51), a brake handle (52) and a gasoline engine knob (53). The motor knob (51) is fixedly sleeved on one side of the handrail (5) of the mining machine, the brake handle (52) is fixedly sleeved on the handrail (5) of the mining machine on the same side as the motor knob (51), and the gasoline engine knob (53) is fixedly sleeved on the other side of the handrail (5). The walking speed of the walking device (6) is controlled by rotating the motor knob (51), the braking of the walking device (6) is controlled by pressing the brake handle (52), and the output speed of the gasoline engine (43) of the pulling power device (4) is controlled by rotating the gasoline engine knob (53).

7. The mountain-mounted, wheelbarrow-mounted, flexible, traction-type thin-shelled pecan harvester according to claim 6, characterized in that, The walking device (6) is installed below the mining machine frame (1). The walking device (6) includes a hub motor (61), a braking module (62), a battery (63) and walking tires. The hub motor (61) is rotatably installed on the L-shaped steel plate below the mining machine frame (1). The outer surface of the hub motor (61) is fitted with walking tires. The hub motor (61) has a power of 1200 W. The speed of the hub motor (61) is controlled by the motor knob (51) on the handrail (5) of the tamping machine. The braking module (62) is fixedly installed on one side of the hub motor (61) to provide emergency braking during the unicycle's operation. Braking is achieved by the brake handle (52) on the handrail (5). The battery (63) is fixedly installed on the battery base under the frame (1) of the tamping machine. The battery (63) has a capacity of 32 Ah and a power supply voltage of 72 V. The reference range under no-load conditions is 70-100 km, and the reference range under full load conditions is 40-70 km.

8. The mountain-mounted, wheelbarrow-mounted, flexible, traction-type thin-shelled pecan harvester according to claim 1, characterized in that, The support device (7) includes a rack-type lifting bracket (71) and a convex-head lifting bracket (72). The rack-type lifting bracket (71) is installed below the rear end of the mining machine frame (1). The rack-type lifting bracket (71) includes a lifting rack (711), a lifting gear (712), a rotating handle (713), a support sleeve (714), and a brake ring (715). The lifting rack (711) is fixedly installed on the lower surface of the mining machine frame (1). The support sleeve (714) is slidably sleeved with the lifting rack (711). The support sleeve (714) is fixedly installed with a gear mounting bracket. The rotating handle (713) is coaxially fixedly connected with the lifting gear (712) and is movably sleeved on the gear mounting bracket of the support sleeve (714). The lifting gear (712) is meshed with the lifting rack (711) for transmission. When the rotating handle (713) is rotated counterclockwise, the support sleeve (714) rises, and vice versa. The brake ring (715) is movably mounted on the support sleeve (714). When the lifting rack (711) rises or falls to the designated position, the brake ring (715) is activated so that the triangular tip of the brake ring (715) engages with the groove of the rear rack of the lifting rack (711) to brake.

9. The ground-mounted, flexible, pull-type thin-shelled pecan harvester according to claim 8, characterized in that, The convex-head type lifting bracket (72) is rotatably installed in the lifting bracket sleeve below the front end of the mining machine frame (1). The convex-head type lifting bracket (72) includes a triangular bracket (721), a movable support rod (722), a bracket convex head (723), and a wedge block (724). The triangular bracket (721) is rotatably sleeved in the lifting bracket sleeve below the front end of the mining machine frame (1). The movable support rod (722) is movably sleeved in the bracket storage sleeve in the middle of the triangular bracket (721). The bracket protrusion (723) is movably installed in the protrusion mounting hole on the surface of the movable support rod (722). The rear end of the bracket protrusion (723) is fixedly connected to a protrusion spring fixedly installed in the protrusion mounting hole. The movable support rod (722) is raised and lowered by pressing the bracket protrusion (723) and simultaneously pushing and pulling the movable support rod (722). The wedge block (724) is fixedly installed on the triangular bracket (721). When the triangular bracket (721) rotates at a certain angle so that the wedge block (724) contacts the mining machine frame (1), it is the maximum angle of rotation of the convex head lifting bracket (72). The convex head lifting bracket (72) is in a retracted state when the walking device (6) is moving. That is, the convex head lifting bracket (72) rotates counterclockwise to the horizontal position, and the moving support rod (722) retracts to the shortest position and contacts the bracket storage hook under the mining machine frame (1).

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