Self-propelled pineapple harvester capable of cutting pineapple leaves in advance

Abstract

The invention relates to a self-propelled pineapple harvester capable of cutting pineapple leaves in advance. The self-propelled pineapple harvester comprises a vehicle body, a picking mechanism, a conveying mechanism, a lifting mechanism and a collecting basket, a driving area is further arranged on the vehicle body, and a walking mechanism is further installed on the bottom side of the vehicle body. Wherein the picking mechanism comprises a picking plate; a stalk guide notch is formed in the front side of the picking plate; a stalk cutting assembly is further mounted on the bottom side of the picking plate; a first leaf cutting mechanism is further arranged on the bottom side of the picking plate; the first leaf cutting mechanism is used for cutting leaves of pineapple plants; the stalk cutting assembly is used for cutting stalks of pineapple plants, and picking of pineapple fruits is achieved. According to the self-propelled pineapple harvester capable of cutting the pineapple leaves in advance, the leaves around pineapple fruits can be cut in advance, the pineapple fruits are easier to pick, and the influence caused by the pineapple leaves is reduced; mechanized harvesting of pineapples in different fields can be met, the labor intensity is relieved, and the pineapple harvesting efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of pineapple harvesting equipment, and particularly to a self-propelled pineapple harvester capable of pre-cutting pineapple leaves. Background Art

[0002] The seasonality of pineapple picking is relatively strong, and there is only a peak harvesting period of about half a month. At present, except for a few orchards equipped with semi-mechanized auxiliary devices, fruits in China are mainly harvested manually; the labor required for the entire harvesting operation in the short term accounts for 50% of the entire pineapple production cost.

[0003] The leaves of the pineapple plant are arranged in a spiral pattern and clustered on the stem. When the pineapple is ripe, the leaves are sword-shaped, and some pineapple varieties also have hard spines growing on the leaf edges, which are easy to prick people; manual picking is likely to cause damage to the hands of fruit farmers, seriously affecting the picking efficiency.

[0004] In the context of the increasing shortage of labor, farmers hope to change the status quo through mechanized harvesting. Therefore, the research and development of pineapple harvesting machinery and equipment is of great significance for alleviating the labor shortage, stabilizing the quality of the picking operation, reducing the labor intensity, and improving the picking production efficiency and the pineapple harvesting and conveying efficiency, which is the future development trend. Although more and more people are engaged in the research of pineapple harvesting machinery and many pineapple harvesting machinery solutions have been proposed, there are still deficiencies in the research of pineapple harvesting machinery. For example, when traditional harvesting machinery is working, the picking and harvesting quality is greatly affected by the surrounding leaves. To solve the deficiencies of pineapple harvesting machinery, a self-propelled pineapple harvester with an adjustable cutting table height that can pre-cut pineapple leaves is designed, which can improve the quality of pineapple picking and the automation degree of pineapple harvesting machinery, can pick pineapples in large quantities quickly, greatly reduce the labor intensity of workers, and improve the picking quality and efficiency of pineapples. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a self-propelled pineapple harvester capable of pre-cutting pineapple leaves, which can pre-cut the leaves around the pineapple fruit, making the pineapple fruit easier to pick and reducing the adverse effects brought by the pineapple leaves; it can meet the mechanized harvesting of pineapples in different fields of the field, greatly reducing the labor intensity and improving the efficiency of pineapple harvesting.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: a self-propelled pineapple harvester capable of pre-cutting pineapple leaves, including a vehicle body, a picking mechanism, a conveying mechanism, a lifting mechanism, and a collection basket, which are sequentially installed on the vehicle body from front to back; a driving area is also provided on the vehicle body, and a traveling mechanism is installed on the bottom side of the vehicle body; wherein, the picking mechanism includes a picking board; two stalk guiding slots distributed left and right and in the front-rear direction are arranged on the front side of the picking board; a stalk cutting assembly is installed on the bottom side of the picking board in the rear end area of the stalk guiding slot; a first blade cutting mechanism is also arranged on the bottom side of the picking board; the first blade cutting mechanism is used for cutting the leaves of the pineapple plant before it enters the stalk guiding slot; the stalk cutting assembly is used for cutting the stalk of the pineapple plant that enters the rear end of the stalk guiding slot, so as to realize the picking of the pineapple fruit; the conveying mechanism is used for receiving the pineapple fruit and outputting it to the lifting mechanism; the lifting mechanism is used for lifting the pineapple fruit and conveying it to the collection basket; the collection basket is used for storing the pineapple fruit.

[0007] Further, the stalk cutting assembly includes a stalk cutting motor and a stalk cutting disc blade fixed to the output end of the stalk cutting motor; the stalk cutting motor is fixed to the bottom side of the picking board through a stalk cutting mounting frame; the cutting range of the stalk cutting disc blade covers the rear end area of the stalk guiding slot.

[0008] Further, the first blade cutting mechanism includes a first blade cutting fixed frame fixed to the bottom side of the picking board and located between the two stalk guiding slots, and second blade cutting fixed frames fixed to the bottom side of the picking board and located in the left and right areas respectively; a plurality of first blade cutting components arranged vertically are fixed to the front side of the first blade cutting fixed frame; a blade cutting movable frame is hinged to the front side of the second blade cutting fixed frame; a first hydraulic telescopic rod is also hinged between the second blade cutting fixed frame and the blade cutting movable frame; a plurality of first blade cutting components arranged vertically are fixed to the front side of the blade cutting movable frame.

[0009] Further, the first blade cutting component includes a first cutting motor and a blade cutting disc blade fixed to the output end of the first cutting motor; the first cutting motor is fixed to the corresponding first blade cutting fixed frame or blade cutting movable frame through a first cutting mounting frame.

[0010] Further, the conveying mechanism includes a conveying box disposed at the rear side of the picking board; a conveying inlet corresponding to the stalk guiding notch is arranged at the front side of the conveying box; a screw conveyor is also installed in the conveying box; the conveying mechanism further includes a screw conveyor motor installed on the conveying box; the output end of the screw conveyor motor is in transmission connection with the screw conveyor through a first chain and sprocket transmission mechanism; a conveying outlet is arranged at the position of the conveying box corresponding to the output end of the screw conveyor; this conveying outlet corresponds to the inlet end of the lifting mechanism.

[0011] Further, a second blade cutting mechanism is also fixed to the front side of the conveying box; the second blade cutting mechanism includes blade comb plates fixed to the left and right sides of the conveying inlet; the blade comb plates are provided with a plurality of front-rear direction blade comb teeth distributed vertically; a blade notch is formed between two adjacent blade comb teeth; the second blade cutting mechanism further includes a second blade cutting assembly fixed to the front side of the conveying box; the second blade cutting assembly is used for cutting the blades stuck in the blade notch.

[0012] Further, the second blade cutting assembly includes a second cutting motor and a long blade for cutting blades fixed to the output end of the second cutting motor; the second cutting motor is fixed to the front side of the conveying box through a second cutting mounting frame; the long blade for cutting blades is parallel to the blade comb plate and corresponds to the blade notch.

[0013] Further, the conveying mechanism is installed on the vehicle body through a lifting mechanism; an adjusting rod is arranged at the rear side of the conveying box; the lifting mechanism includes a support rod and a lifting rotating rod fixed to the vehicle body; the lifting rotating rod is L-shaped, one end of the lifting rotating rod is hinged to the top end of the support rod, and the other end is hinged to the area near the front side of the adjusting rod; the lifting mechanism further includes a second hydraulic telescopic rod; the fixed end of the second hydraulic telescopic rod is hinged to the support rod, and the telescopic end of the second hydraulic telescopic rod is hinged to the area near the adjusting rod of the lifting rotating rod; the lifting mechanism further includes a third hydraulic telescopic rod; the fixed end of the third hydraulic telescopic rod is hinged to the lifting rotating rod, and the telescopic end of the third hydraulic telescopic rod is hinged to the area near the rear side of the adjusting rod.

[0014] Further, the lifting mechanism is inclined with the front side lower and the rear side higher, and has a horizontal section at the front side and an inclined section at the rear side of the horizontal section; the lifting mechanism includes two lifting mounting frames fixed to the vehicle frame and distributed left and right, a lifting transmission shaft and a plurality of lifting driven shafts installed between the two lifting mounting frames, and a lifting conveyor belt wound around the lifting transmission shaft and the plurality of lifting driven shafts; a plurality of partition plates are uniformly fixed along the length direction of the lifting conveyor belt to prevent the pineapple fruits from sliding down from the inclined section of the lifting mechanism; a lifting motor is also fixed on the vehicle frame; the output end of the lifting motor is in transmission connection with the lifting transmission shaft through a second chain and sprocket transmission mechanism; baffles are also fixed on the lifting mounting frames at the front side and the left and right sides of the lifting conveyor belt.

[0015] Furthermore, the traveling mechanism is a crawler-type traveling mechanism.

[0016] Advantages of the present invention: The self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to the present invention can pre-cut the leaves around the pineapple fruit, making it easier to pick the pineapple fruit and reducing the adverse effects brought by the pineapple leaves; it can meet the mechanized harvesting of pineapples in different fields, greatly reducing the labor intensity and improving the efficiency of pineapple harvesting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Stereoscopic schematic diagram of a self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to an embodiment;

[0018] Figure 2 Stereoscopic schematic diagram of the picking mechanism, conveying mechanism, first leaf cutting mechanism and second leaf cutting mechanism of a self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to an embodiment;

[0019] Figure 3 Stereoscopic schematic diagram of the picking mechanism, conveying mechanism, first leaf cutting mechanism and second leaf cutting mechanism of a self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to an embodiment from another angle;

[0020] Figure 4 Stereoscopic schematic diagram of the second fixed frame for leaf cutting, movable frame for leaf cutting, first hydraulic telescopic rod and first leaf cutting assembly of a self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to an embodiment;

[0021] Figure 5 For Figure 2 Partial enlarged schematic diagram of area A;

[0022] Figure 6 Left view schematic diagram of a self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to an embodiment;

[0023] Figure 7 For Figure 6 Partial enlarged schematic diagram of area B;

[0024] Figure 8 Stereoscopic schematic diagram of the lifting mechanism of a self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to an embodiment;

[0025] Figure 9 Stereoscopic schematic diagram of a self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to an embodiment from another angle;

[0026] Among them, 1 - vehicle body, 2 - picking mechanism, 3 - conveying mechanism, 4 - lifting mechanism, 5 - collection basket, 6 - first blade cutting mechanism, 7 - second blade cutting mechanism, 8 - lifting mechanism, 11 - driving area, 12 - traveling mechanism, 21 - picking board, 22 - stalk guiding notch, 23 - stalk cutting assembly, 231 - stalk cutting motor, 232 - stalk cutting disc blade, 233 - stalk cutting mounting bracket, 31 - conveying box, 32 - auger, 33 - auger motor, 34 - first chain and sprocket transmission mechanism, 35 - adjusting rod, 311 - conveying inlet, 312 - conveying outlet, 41 - lifting mounting bracket, 42 - lifting transmission shaft, 43 - lifting driven shaft, 44 - lifting conveyor belt, 45 - partition board, 46 - baffle, 47 - lifting motor, 48 - second chain and sprocket transmission mechanism, 61 - first blade cutting fixed bracket, 62 - second blade cutting fixed bracket, 63 - blade cutting movable bracket, 64 - first hydraulic telescopic rod, 65 - first blade cutting assembly, 651 - first cutting motor, 652 - blade cutting disc blade, 653 - first cutting mounting bracket, 71 - blade comb plate, 72 - second blade cutting assembly, 711 - blade comb teeth, 712 - blade notch, 721 - second cutting motor, 722 - blade cutting long blade, 723 - second cutting mounting bracket, 81 - support rod, 82 - lifting rotating rod, 83 - second hydraulic telescopic rod, 84 - third hydraulic telescopic rod. Detailed implementation manners

[0027] To deepen the understanding of the present invention, the following will further describe the present invention in detail in combination with the drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the protection scope of the present invention.

[0028] Embodiment

[0029] Please refer to Figures 1 to 9As shown in the figure, this embodiment provides a self-propelled pineapple harvester capable of pre-cutting pineapple leaves, which includes a vehicle body 1, a picking mechanism 2, a conveying mechanism 3, a lifting mechanism 4, and a collection basket 5 that are sequentially installed on the vehicle body 1 from front to back; a driving area 11 is also provided on the vehicle body 1, and a traveling mechanism 12 is installed on the bottom side of the vehicle body 1; among them, the picking mechanism includes a picking board 21; two stalk guiding notches 22 distributed left and right and in the front-rear direction are arranged on the front side of the picking board 21; a stalk cutting assembly 23 is installed on the bottom side of the picking board 21 in the rear end area of the stalk guiding notch 22; a first leaf cutting mechanism 6 is also arranged on the bottom side of the picking board 21; the first leaf cutting mechanism 6 is used for cutting the leaves of the pineapple plant before it enters the stalk guiding notch 22; the stalk cutting assembly 23 is used for cutting the stalks of the pineapple plant that enter the rear end of the stalk guiding notch 22, so as to realize the picking of pineapple fruits; the conveying mechanism 3 is used for receiving pineapple fruits and outputting them to the lifting mechanism 4; the lifting mechanism 4 is used for lifting the pineapple fruits and conveying them to the collection basket 5; the collection basket 5 is used for storing pineapple fruits.

[0030] Referring again to Figure 3 As shown in the figure, the stalk cutting assembly 23 includes a stalk cutting motor 231 and a stalk cutting disc blade 232 fixed to the output end of the stalk cutting motor 231; the stalk cutting motor 231 is fixed to the bottom side of the picking board 21 through a stalk cutting mounting frame 233; the cutting range of the stalk cutting disc blade 232 covers the rear end area of the stalk guiding notch 22. The stalk cutting motor 231 drives the stalk cutting disc blade 232 to cut the stalks of the pineapple plant, so that the pineapple fruits are separated from the stalks.

[0031] Referring again to Figure 2 and Figure 4 As shown in the figure, the first leaf cutting mechanism 6 includes a first leaf cutting fixed frame 61 fixed to the bottom side of the picking board 21 and located between the two stalk guiding notches 22, and second leaf cutting fixed frames 62 fixed to the bottom side of the picking board 21 and located in the left area and the right area respectively; a plurality of first leaf cutting assemblies 65 arranged vertically are fixed to the front side of the first leaf cutting fixed frame 61; a leaf cutting movable frame 63 is hinged to the front side of the second leaf cutting fixed frame 62; a first hydraulic telescopic rod 64 is also hinged between the second leaf cutting fixed frame 62 and the leaf cutting movable frame 63; a plurality of first leaf cutting assemblies 65 arranged vertically are fixed to the front side of the leaf cutting movable frame 63. By the telescopic movement of the first hydraulic telescopic rod 64 and in cooperation with the hinge, the leaf cutting movable frame 63 rotates, so as to adjust the distance between the first leaf cutting assemblies 65 on the front side of the leaf cutting movable frame 63 and the first leaf cutting assemblies 65 on the front side of the first leaf cutting fixed frame 61, and thus control the leaf cutting range of the pineapple plant before it enters the stalk guiding notch 22.

[0032] Referring again to Figure 4 as shown, the first blade cutting assembly 65 includes a first cutting motor 651 and a blade cutting disk blade 652 fixed to the output end of the first cutting motor 651; the first cutting motor 651 is fixed to the corresponding first blade cutting fixed frame 61 or the blade cutting movable frame 63 through a first cutting mounting frame 653. The first cutting motor 651 drives the blade cutting disk blade 652 to cut the blades.

[0033] Referring again to Figure 2 and Figure 3 as shown, the conveying mechanism 3 includes a conveying box 31 arranged at the rear side of the picking board 21; a conveying inlet 311 corresponding to the stalk guiding notch 22 is arranged at the front side of the conveying box 31; a screw conveyor 32 is also installed on the conveying box 31; the conveying mechanism 3 further includes a screw conveyor motor 33 installed on the conveying box 31; the output end of the screw conveyor motor 33 is in transmission connection with the screw conveyor 32 through a first chain and sprocket transmission mechanism 34; a conveying outlet 312 is arranged at the position of the conveying box 31 corresponding to the output end of the screw conveyor 32; the conveying outlet 312 corresponds to the inlet end of the lifting mechanism 4. The screw conveyor motor 33 drives the screw conveyor 32 to rotate by means of chain transmission, and then conveys the pineapple fruits entering the conveying box 31 to the side. When the pineapple fruits are conveyed to the conveying outlet 312, they are sent out of the conveying box 31 and enter the lifting mechanism 4.

[0034] Referring again to Figure 2 and Figure 5 as shown, a second blade cutting mechanism 7 is also fixed to the front side of the conveying box 31; the second blade cutting mechanism 7 includes blade comb plates 71 fixed to the left and right sides of the conveying inlet 311; a plurality of blade comb teeth 711 in the front-back direction are arranged vertically on the blade comb plates 71; blade slots 712 are formed between adjacent two blade comb teeth; the second blade cutting mechanism 7 further includes a second blade cutting assembly 72 fixed to the front side of the conveying box 31; the second blade cutting assembly 72 is used for cutting the blades stuck in the blade slots 712. When the pineapple plant enters the rear area of the stalk guiding notch 22, the leaves of the pineapple plant close to the pineapple fruits will also enter the blade slots 712, and the second blade cutting assembly 72 cuts this part of the leaves.

[0035] Referring again to Figure 5As shown, the second blade cutting assembly 72 includes a second cutting motor 721 and a blade cutting long blade 722 fixed to the output end of the second cutting motor 721; the second cutting motor 721 is fixed to the front side of the conveying box 31 through a second cutting mounting bracket 723; the blade cutting long blade 722 is parallel to the blade comb plate 71 and corresponds to the blade notch 712. The second cutting motor 721 drives the blade cutting long blade 722 to cut the blades.

[0036] Referring again to Figure 6 and Figure 7 As shown, the conveying mechanism 3 is installed on the vehicle body 1 through a lifting mechanism 8; an adjusting rod 35 is provided at the rear side of the conveying box 31; the lifting mechanism 8 includes a support rod 81 fixed to the vehicle body and a lifting rotating rod 82; the lifting rotating rod 82 is L-shaped, one end of the lifting rotating rod 82 is hinged to the top end of the support rod 81, and the other end is hinged to a region near the front side of the adjusting rod 35; the lifting mechanism 8 further includes a second hydraulic telescopic rod 83; the fixed end of the second hydraulic telescopic rod 83 is hinged to the support rod 81, and the telescopic end of the second hydraulic telescopic rod 83 is hinged to a region near the adjusting rod 35 of the lifting rotating rod 82; the lifting mechanism 8 further includes a third hydraulic telescopic rod 84; the fixed end of the third hydraulic telescopic rod 84 is hinged to the lifting rotating rod 82, and the telescopic end of the third hydraulic telescopic rod 84 is hinged to a region near the rear side of the adjusting rod 35. Specifically, the fixed end of the second hydraulic telescopic rod 83 is hinged to an appropriate position in the middle region of the support rod 81, and the telescopic end of the second hydraulic telescopic rod 83 is hinged to an appropriate position in the middle region of one arm of the L-shaped lifting rotating rod 82 that is hinged to the adjusting rod 35; the fixed end of the third hydraulic telescopic rod 84 is on one arm of the L-shaped lifting rotating rod 82 that is hinged to the support rod 81 and near the other arm at an appropriate position, and the telescopic end of the third hydraulic telescopic rod 84 is hinged to a region near the rear side of the adjusting rod 35; by controlling the telescopic movement of the second hydraulic telescopic rod 83, the lifting rotating rod rotates around the hinge point with the support rod 81 to realize the overall height adjustment of the structure assembled by the picking mechanism, the conveying mechanism, the first blade cutting mechanism and the second blade cutting mechanism; by controlling the telescopic movement of the third hydraulic telescopic rod 84, the adjusting rod 35 rotates around the hinge point with the lifting rotating rod 82 to realize the adjustment of the overall tilt angle of the structure assembled by the picking mechanism, the conveying mechanism, the first blade cutting mechanism and the second blade cutting mechanism.

[0037] Referring again to Figure 8As shown, the lifting mechanism 4 is inclined with the front end lower and the rear end higher, having a horizontal section at the front side and an inclined section at the rear side of the horizontal section; the lifting mechanism 4 includes two lifting mounting brackets 41 fixed to the vehicle frame 1 and distributed left and right, a lifting transmission shaft 42 mounted between the two lifting mounting brackets 41, and a plurality of lifting driven shafts 43, and a lifting conveyor belt 44 wound around the lifting transmission shaft 42 and the plurality of lifting driven shafts 43; a plurality of partitions 45 are uniformly fixed along the length direction of the lifting conveyor belt 44 to prevent the pineapple fruits from sliding down from the inclined section of the lifting mechanism 4; a lifting motor 47 is also fixed on the vehicle frame 1; the output end of the lifting motor 47 is in transmission connection with the lifting transmission shaft 42 through a second chain and sprocket transmission mechanism 48; baffles 46 are also fixed on the lifting mounting brackets 41 at the front side and the left and right sides of the lifting conveyor belt. In this embodiment, the lifting motor 47 drives the lifting conveyor belt 44 to move, and the pineapple fruits are conveyed backward and upward by using the partitions 45; the design of the baffles 46 can ensure that the pineapple fruits can fall onto the lifting conveyor belt 44 after being sent out from the conveying box; at the same time, it can also prevent the pineapple fruits from slipping out from the side of the lifting conveyor belt 44.

[0038] Referring again to Figure 1 and Figure 9 As shown, the traveling mechanism 12 is a crawler-type traveling mechanism.

[0039] A self-propelled pineapple harvester capable of pre-cutting pineapple leaves in this embodiment is designed for harvesting two rows of planted pineapples, and during harvesting, two rows of pineapples are harvested simultaneously.

[0040] A self-propelled pineapple harvester capable of pre-cutting pineapple leaves in this embodiment, during operation, workers operate in the driving area to perform pineapple harvesting operations; control the traveling mechanism to make the self-propelled pineapple harvester travel to the starting point of pineapple harvesting, and make the two stalk guiding slots correspond to a row of pineapples respectively; after the picking mechanism approaches the pineapple fruit, control the second hydraulic telescopic rod and the third hydraulic telescopic rod to adjust the height and inclination angle of the picking mechanism; the inclination angle should ensure that the pineapple fruit can roll backward by its own weight; control the first hydraulic telescopic rod to control the blade cutting range of the first blade cutting mechanism 6 to ensure that the opposite slices around the pineapple fruit can be cut, and at the same time, the pineapple fruit will not be cut; after the adjustment is completed, start the first cutting motor, the second cutting motor, the stalk cutting motor, the auger motor, and the lifting motor; control the traveling mechanism to make the self-propelled pineapple harvester move forward, and the leaves around the pineapple fruit will be first cut off by the first blade cutting mechanism; the pineapple stalks enter the end area of the stalk guiding slot under the guidance of the stalk guiding slot, and the stalks will be cut by the high-speed rotating stalk cutting disc blade and separated from the pineapple fruit. At the same time, some leaves of the pineapple fruit will also enter the blade slot and be cut off by the high-speed rotating blade cutting long blade; the pineapple fruit enters the conveying box along the inclined picking plate under the action of its own weight, and is conveyed to the conveying outlet of the conveying box laterally by the rotation of the auger. The pineapple fruit rolls out of the conveying box along the inclined bottom plate of the conveying box under the action of its own weight and falls onto the lifting conveyor belt of the lifting mechanism. Under the action of the partition board, the pineapple fruit moves backward and upward with the rotation of the lifting conveyor belt, and then falls into the collection basket. As the harvesting of pineapples continues, when the collection basket is full of pineapple fruits, the worker controls the traveling mechanism to make the self-propelled pineapple harvester reach the designated unloading location for unloading. After unloading, continue with the pineapple harvesting operation; after the harvesting is completed, shut down all cutting motors, the second cutting motor, the stalk cutting motor, the auger motor, and the lifting motor, and control the traveling mechanism to make the self-propelled pineapple harvester leave the pineapple field, thus completing the pineapple harvesting operation.

[0041] A self-propelled pineapple harvester capable of pre-cutting pineapple leaves in this embodiment, through the design of the first blade cutting mechanism, can pre-cut the leaves around the pineapple fruit, making the pineapple fruit easier to pick, reducing the influence of pineapple leaves, and at the same time, it is also convenient for workers to walk in the pineapple field; through the design of the second blade cutting mechanism, further cut off the redundant pineapple leaves while picking the pineapple fruit; through the design of the lifting mechanism, the height adjustment and inclination angle adjustment of the overall structure assembled by the picking mechanism, the conveying mechanism, the first blade cutting mechanism and the second blade cutting mechanism can be realized, better adapting to the picking of pineapple fruits at different heights; it can meet the mechanized harvesting of pineapples in different fields of the field, greatly reducing the labor intensity and improving the efficiency of pineapple harvesting.

[0042] The above embodiments shall not limit the present invention in any way, and all technical solutions obtained by means of equivalent substitution or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A self-propelled pineapple harvester capable of pre-cutting pineapple leaves, characterized in that: It includes a vehicle body (1), a picking mechanism (2), a conveying mechanism (3), a lifting mechanism (4), and a collection basket (5) that are successively installed on the vehicle body (1) from front to back; a driving area (11) is also provided on the vehicle body (1), and a traveling mechanism (12) is installed on the bottom side of the vehicle body (1); wherein, the picking mechanism includes a picking board (21); two stalk guiding notches (22) distributed left and right and in the front-rear direction are provided on the front side of the picking board (21); a stalk cutting assembly (23) is installed on the bottom side of the picking board (21) in the rear-end area of the stalk guiding notch (22); a first blade cutting mechanism (6) is also provided on the bottom side of the picking board (21); the first blade cutting mechanism (6) is used for cutting the leaves of the pineapple plant before it enters the stalk guiding notch (22); the stalk cutting assembly (23) is used for cutting the stalk of the pineapple plant that enters the rear end of the stalk guiding notch (22), thereby realizing the picking of pineapple fruits; the conveying mechanism (3) is used for receiving pineapple fruits and outputting them to the lifting mechanism (4); the lifting mechanism (4) is used for lifting the pineapple fruits and conveying them to the collection basket (5); the collection basket (5) is used for storing pineapple fruits.

2. The self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 1, characterized in that: The stalk cutting assembly (23) includes a stalk cutting motor (231) and a stalk cutting disc blade (232) fixed to the output end of the stalk cutting motor (231); the stalk cutting motor (231) is fixed to the bottom side of the picking board (21) through a stalk cutting mounting bracket (233); the cutting range of the stalk cutting disc blade (232) covers the rear-end area of the stalk guiding notch (22).

3. The self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 1, wherein: The first blade cutting mechanism (6) includes a first blade cutting fixed frame (61) fixed to the bottom side of the picking board (21) in the area between the two stalk guiding notches (22), and second blade cutting fixed frames (62) fixed to the bottom side of the picking board (21) in the left area and the right area respectively; a plurality of first blade cutting components (65) arranged vertically are fixed to the front side of the first blade cutting fixed frame (61); a blade cutting movable frame (63) is hinged to the front side of the second blade cutting fixed frame (62); a first hydraulic telescopic rod (64) is also hinged between the second blade cutting fixed frame (62) and the blade cutting movable frame (63); a plurality of first blade cutting components (65) arranged vertically are fixed to the front side of the blade cutting movable frame (63).

4. A self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 3, characterized in that: The first blade cutting component (65) includes a first cutting motor (651) and a blade cutting disc blade (652) fixed to the output end of the first cutting motor (651); the first cutting motor (651) is fixed to the corresponding first blade cutting fixed frame (61) or blade cutting movable frame (63) through a first cutting mounting bracket (653).

5. The self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 1, characterized in that: The conveying mechanism (3) includes a conveying box (31) arranged at the rear side of the picking board (21); a conveying inlet (311) corresponding to the stalk guiding notch (22) is arranged at the front side of the conveying box (31); a screw conveyor (32) is further installed in the conveying box (31); the conveying mechanism (3) further includes a screw conveyor motor (33) installed on the conveying box (31); the output end of the screw conveyor motor (33) is in transmission connection with the screw conveyor (32) through a first chain and sprocket transmission mechanism (34); a conveying outlet (312) is arranged at the position of the conveying box (31) corresponding to the output end of the screw conveyor (32); the conveying outlet (312) corresponds to the inlet end of the lifting mechanism (4).

6. A self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 5, characterized in that: A second blade cutting mechanism (7) is further fixed to the front side of the conveying box (31); the second blade cutting mechanism (7) includes blade comb plates (71) fixed to the left and right sides of the conveying inlet (311); a plurality of front-back direction blade comb teeth (711) arranged vertically are provided on the blade comb plates (71); blade notches (712) are formed between adjacent two blade comb teeth; the second blade cutting mechanism (7) further includes a second blade cutting assembly (72) fixed to the front side of the conveying box (31); the second blade cutting assembly (72) is used for cutting the blades stuck in the blade notches (712).

7. The self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 6, characterized in that: The second blade cutting assembly (72) includes a second cutting motor (721) and a blade cutting long blade (722) fixed to the output end of the second cutting motor (721); the second cutting motor (721) is fixed to the front side of the conveying box (31) through a second cutting mounting bracket (723); the blade cutting long blade (722) is parallel to the blade comb plate (71) and corresponds to the blade notch (712).

8. A self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to any one of claims 5-7, characterized in that: The conveying mechanism (3) is installed on the vehicle body (1) through a lifting mechanism (8); an adjusting rod (35) is arranged at the rear side of the conveying box (31); the lifting mechanism (8) includes a support rod (81) fixed to the vehicle body and a lifting rotating rod (82); the lifting rotating rod (82) is in an L shape, one end of the lifting rotating rod (82) is hinged to the top end of the support rod (81), and the other end is hinged to the area of the adjusting rod (35) close to the front side; the lifting mechanism (8) further includes a second hydraulic expansion rod (83); the fixed end of the second hydraulic expansion rod (83) is hinged to the support rod (81), and the telescopic end of the second hydraulic expansion rod (83) is hinged to the area of the lifting rotating rod (82) close to the adjusting rod (35); the lifting mechanism (8) further includes a third hydraulic expansion rod (84); the fixed end of the third hydraulic expansion rod (84) is hinged to the lifting rotating rod (82), and the telescopic end of the third hydraulic expansion rod (84) is hinged to the area of the adjusting rod (35) close to the rear side.

9. A self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 1, characterized in that: The lifting mechanism (4) is inclined with the front end lower and the rear end higher, and has a horizontal section at the front side and an inclined section at the rear side of the horizontal section; the lifting mechanism (4) includes two lifting mounting frames (41) fixed to the vehicle frame (1) and distributed left and right, a lifting transmission shaft (42) mounted between the two lifting mounting frames (41), and a plurality of lifting driven shafts (43); a lifting conveyor belt (44) is wound around the lifting transmission shaft (42) and the plurality of lifting driven shafts (43); a plurality of partition plates (45) are uniformly fixed along the length direction of the lifting conveyor belt (44) to prevent pineapple fruits from sliding down from the inclined section of the lifting mechanism (4); a lifting motor (47) is also fixed on the vehicle frame (1); the output end of the lifting motor (47) is in transmission connection with the lifting transmission shaft (42) through a second chain and sprocket transmission mechanism (48); baffles (46) are also fixed on the lifting mounting frames (41) on the front side and the left and right sides of the lifting conveyor belt.

10. A self-propelled pineapple harvester capable of pre-cutting pineapple leaves according to claim 1, characterized in that: The traveling mechanism (12) is a crawler-type traveling mechanism.

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