Chain feeding type pineapple harvesting machine tool with adjustable angle and height

Abstract

The invention discloses an angle and height adjustable chain feeding type pineapple harvesting machine. The angle and height adjustable chain feeding type pineapple harvesting machine comprises a rack, a picking device and a height adjusting device; the picking device comprises a mounting frame, a chain type pineapple harvesting table, a fruit breaking device and an angle adjusting mechanism; the chain type pineapple harvesting table comprises a harvesting frame, a plurality of conveying channels arranged on the harvesting frame, a plurality of guide plates arranged at the front end of the harvesting frame, U-shaped middle plates arranged on the conveying channels, chain type conveying mechanisms arranged on the two sides of the conveying channels and bearing plates arranged on the chain type conveying mechanisms. The space between every two adjacent guide plates forms an inlet of each conveying channel. According to different growth heights of pineapple plants, the harvesting height can be adjusted to reach the optimal position for harvesting pineapples, the complete harvesting rate is increased, meanwhile, the situation that the pineapple harvesting machine cannot operate due to accumulation of a large amount of stem and leaf residues during harvesting can be avoided, the resistance of the pineapple harvesting machine during operation is reduced, and the agricultural mechanical harvesting rate is increased.

Description

Technical Field

[0001] The invention relates to the technical field of pineapple harvesting, and in particular to a chain-feeding type pineapple harvesting machine with adjustable angle and height. Background Art

[0002] Pineapple belongs to the Bromeliaceae family and is a perennial herb. Its appearance is unique, with a hard scale-like structure on the skin and crown-shaped leaves on the top, and the overall shape is beautiful. Pineapple is rich in a variety of nutrients needed by the human body, including substances that enrich the human body, so it has become one of the most widely grown and consumed tropical fruits in the world, and is also widely loved by consumers.

[0003] At present, the mechanization and automation level of pineapple harvesting is low, and pineapple harvesting still mainly relies on manual operation. Due to the unique growth structure and environmental conditions of pineapple plants, picking work always faces many difficulties. The peel of mature pineapples is hard and covered with thorns, and the leaf edges have sharp serrations, which makes it easy to get injured by hand during manual picking, and the working environment is harsh and difficult. In addition, pineapples have a high yield and are planted in a wide range. It is inefficient and labor-intensive to transport pineapples from the field to open areas by manpower. Harvesting is seasonal, and the problems of labor shortage and rising costs are particularly prominent in the current environment. In order to solve the above problems, in the prior art. Simple hand tools and machines, such as mechanical scissors, are usually used. These tools or machines improve the picking efficiency and quality to a certain extent, but they still rely mainly on manpower for harvesting. In addition, mechatronic equipment is also used to harvest pineapples, but this harvesting method has the following shortcomings:

[0004] 1. Due to the special growth pattern and structure of pineapples, picking is difficult. Not all pineapple fruits grow in a normal posture. When encountering fallen pineapples, agricultural machinery is difficult to harvest them, or the pineapple plants grow at different heights, resulting in a low harvest rate.

[0005] 2. The growing areas of pineapples are mostly hilly and mountainous areas with undulating terrain and rugged rocks. During the harvesting process, some pineapple stems and leaves are squeezed by agricultural machinery and gradually piled up, which not only makes it difficult for agricultural machinery to move forward, but also causes the accumulation of leaves and stems, causing the unpicked pineapples on the way forward to be crushed, causing a large number of pineapples to fall over and be damaged, making it impossible to guarantee the picking efficiency and quality.

[0006] The purpose of the present invention is to overcome the above-mentioned problems and provide a chain-fed pineapple harvester with adjustable angle and height. The pineapple harvester can adjust the harvesting height according to the different growth heights of pineapple plants to reach the best position for harvesting pineapples and improve the clean harvesting rate. At the same time, it can also avoid the accumulation of a large amount of stem and leaf residues during harvesting, which causes the pineapple harvester to be unable to operate, and reduce the resistance during the operation of the pineapple harvester, thereby increasing the harvesting rate of agricultural machinery.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] A chain-fed pineapple harvester with adjustable angle and height comprises a frame, a picking device arranged at the front end of the frame for picking pineapple fruits, and a height adjusting device for adjusting the height of the picking device; wherein:

[0009] The picking device includes a mounting frame, a chain pineapple picking platform, a fruit breaking device and an angle adjustment mechanism; the rear end of the chain pineapple picking platform is rotatably connected to the mounting frame, and the angle adjustment mechanism is used to adjust the rotation angle of the chain pineapple picking platform on the mounting frame; the fruit breaking device is arranged at the front end of the mounting frame, and is used to separate pineapple fruits from pineapple stems; the chain pineapple picking platform includes a picking frame, a plurality of conveying channels arranged on the picking frame, a plurality of guide plates arranged at the front end of the picking frame, a U-shaped middle plate arranged on each conveying channel, a chain conveying mechanism arranged on both sides of each conveying channel, and a supporting plate arranged on the chain conveying mechanism; the rear end of the picking frame is rotatably connected to the mounting frame, and the space between two adjacent guide plates constitutes the entrance of each conveying channel.

[0010] The working principle of the above-mentioned chain-fed pineapple harvester with adjustable angle and height is:

[0011] The chain-fed pineapple harvesting machine is mounted on an agricultural machine for use. When harvesting on a pineapple field, the agricultural machine is started first, and the agricultural machine moves forward, driving the chain-fed pineapple harvesting machine to move forward, and the power is started. The height adjustment device and the angle adjustment mechanism enter a ready-to-work state, the chain pineapple harvesting platform starts to work, each chain conveying mechanism starts to rotate, and the fruit breaking device also starts to work. When the agricultural machine moves to a distance in front of the pineapple fruit, the height adjustment device and the angle adjustment mechanism work according to the height of the pineapple fruit growth and the tilting and lodging state of the pineapple plant. The height adjustment device adjusts the height of the picking device to a suitable position, thereby realizing the height adjustment of the chain pineapple harvesting platform and the fruit breaking device. The angle adjustment mechanism adjusts the angle of the chain pineapple harvesting platform. Specifically, when the U-shaped middle plate in the chain pineapple harvesting platform is parallel to the expected stalk fracture plane at the lower end of the pineapple fruit, the height adjustment device and the angle adjustment mechanism stop working, and the chain pineapple harvesting platform reaches the optimal harvesting height at this time.

[0012] The agricultural machinery continues to move forward. At this time, the guide plate on the chain pineapple harvesting platform separates the pineapple plants on both sides and pushes away the stems and leaves of some target pineapple plants to reduce the interference of the stems and leaves on the chain conveying mechanism, and the pineapple fruits will enter the conveying channel; as it continues to move forward, the supporting plate begins to contact with the pineapple fruits, and the pineapple fruits and stems are dumped along with the movement of the chain conveying mechanism. At the same time, the pineapple fruits move toward the fruit breaking device. When the pineapple fruits move to the middle part of the chain conveying mechanism along with the chain conveying mechanism, the fruit breaking device contacts the pineapple fruits, so that the pineapple fruits are separated from the stems, and the pineapple fruits fall on the U-shaped middle plate, and along with the movement of the chain conveying mechanism and the supporting plate, the pineapple fruits are transported backwards, and finally leave the conveying channel and enter the interior of the agricultural machinery for collection, thereby harvesting the pineapple fruits.

[0013] In a preferred embodiment of the present invention, the harvesting frame includes a mounting rod and a plurality of vertical long boards; the mounting rod is rotatably mounted on the mounting frame, the rear end of the vertical long board is fixed on the mounting rod, and the guide plate is fixed on the front end of the vertical long board; the space between two adjacent vertical long boards constitutes the conveying channel. In the above structure, the vertical long board can not only play a role in installing the guide plate, but also play a role in separating the conveying channel, ensuring that the pineapple fruits can fall into the conveying channel, so that multiple rows of pineapples can be picked at the same time.

[0014] Preferably, the rear end of the U-shaped middle plate is fixed on the mounting rod, and a U-shaped groove is provided on the U-shaped middle plate, the opening of which is located at the front end of the U-shaped middle plate. The purpose is to gather the stems and leaves that are not separated on the pineapple plant during the harvesting process, reduce the interference of the stems and leaves on the harvesting process, and reduce the stem and leaf residues that are drawn into the chain conveyor mechanism.

[0015] Preferably, the chain conveyor mechanism comprises a conveyor chain, a conveyor driving sprocket and a conveyor driven sprocket arranged on the side of the vertical long board, the conveyor chain is connected to the conveyor driving sprocket and the conveyor driven sprocket, and the support plate is installed on the conveyor chain. The pineapple fruit can be fed and conveyed by rotating the conveyor chain, and the support plate can support the pineapple fruit during the conveying process.

[0016] Preferably, the chain-type pineapple harvesting platform further comprises a conveying drive mechanism for driving the chain-type conveying mechanism to rotate, the conveying drive mechanism comprises a driving shaft rotatably arranged on a vertical long plate and a conveying drive motor for driving the driving shaft to rotate; all the conveying driving sprockets are connected to the driving shaft. In the above structure, by providing a conveying drive motor and a driving shaft, all the chain-type conveying mechanisms can be synchronized to realize the conveyance of pineapple fruits, which is not only compact in structure but also can save resources.

[0017] Furthermore, the two sides of the U-shaped middle plate are located in the middle of the conveyor chain, and its function is to assist in supporting the pineapple fruit and prevent it from falling.

[0018] Preferably, each conveyor chain is provided with a plurality of supporting plates; the supporting plates include a bend angle and a bend right angle; the supporting plates on the conveyor chains on both sides of the conveying channel are symmetrically arranged; the bend angle faces the inside of the conveying channel. The purpose is that the outer bend right angle can support the pineapple fruit, and the inner bend angle can make the stems and leaves of the pineapple plant automatically flow out along the pineapple stems along the bend direction during the harvesting work, instead of accumulating on the conveyor chain or entangled on the supporting plates, thereby reducing the interference of the stems and leaves on the harvesting work.

[0019] Preferably, the fruit breaking device includes a plurality of groups of fruit picking rod groups and a fruit breaking driving mechanism for driving the fruit picking rod groups to rotate and revolve; the fruit breaking driving mechanism includes a fruit picking shaft rotatably arranged at the front end of the mounting frame, discs respectively arranged at both ends of the fruit picking shaft, and a fruit picking driving motor for driving the fruit picking shaft to rotate; the fruit picking rod group is arranged between the two discs and rotatably connected to the outside of the discs; each group of the fruit picking rod group is connected to the fruit picking shaft through a transmission mechanism. In the above structure, the fruit picking driving motor drives the fruit picking shaft to move, drives the two discs to move, realizes the revolution of the fruit picking rod group, and moves the pineapple fruit. The rotation of the fruit picking shaft is transmitted through the transmission mechanism, driving the fruit picking rod group to rotate. Through the revolution and rotation of the fruit picking rod group, in cooperation with the chain-type pineapple harvesting platform, the pineapple fruit can be separated from the stem, and the pineapple can be harvested.

[0020] Furthermore, the transmission mechanism is a chain transmission mechanism, comprising a transmission main sprocket arranged on the fruit picking shaft, a transmission driven sprocket arranged on the fruit picking rod group, and a transmission chain connected between the transmission main sprocket and the transmission driven sprocket. By setting the above structure, the self-rotation of the fruit picking rod group is achieved.

[0021] Furthermore, each group of the fruit picking rod group includes a directional rotating shaft arranged between two discs, a connecting square tube sleeved on the outside of the directional rotating shaft, and a plurality of fruit breaking soft rods arranged on the connecting square tube; the plurality of fruit breaking soft rods are arranged equidistantly along the extension direction of the connecting square tube, and the fruit breaking soft rods are arranged vertically downward; the moving sprocket is arranged on the directional rotating shaft. In the above structure, the directional rotating shaft is rotatably connected to the outside of the disc and fixedly connected to the connecting square tube. The connecting square tube can better install the fruit breaking soft rod. When the fruit breaking soft rod rotates around the fruit picking shaft, it can move the pineapple fruit. In combination with the chain-type pineapple harvesting platform, the pineapple fruit can be separated from the stem.

[0022] Preferably, the height adjustment device comprises a lifting and lowering night-pressing rod; the upper end of the lifting and lowering night-pressing rod is connected to the upper end of the frame, and the lower end of the lifting and lowering night-pressing rod is connected to the upper end of the mounting frame. The height of the mounting frame is adjusted by the telescopic movement of the lifting and lowering night-pressing rod, thereby achieving the height adjustment of the entire picking device.

[0023] Preferably, the angle adjustment mechanism comprises an angle adjustment hydraulic rod; one end of the angle adjustment hydraulic rod is hinged to the upper end of the mounting frame, and the other end of the angle adjustment hydraulic rod is hinged to the front end of the harvesting frame. The angle of the harvesting frame is adjusted by the telescopic movement of the angle adjustment hydraulic rod, thereby achieving the angle adjustment of the entire chain pineapple harvesting platform.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The chain-fed pineapple harvesting machine of the present invention adjusts the height of the picking device to a suitable position by a height adjusting device before harvesting, thereby realizing the height adjustment of the chain pineapple harvesting platform and the fruit breaking device, and adjusting the angle of the chain pineapple harvesting platform by an angle adjusting mechanism. By cooperating with the height adjusting device and the angle adjusting mechanism, when the U-shaped middle plate in the chain pineapple harvesting platform is parallel to the expected fracture plane of the stem at the lower end of the pineapple fruit, the optimal harvesting height of the chain pineapple harvesting platform can be reached, and the picking device can be accurately adjusted to face pineapples in different growth conditions, thereby improving the clean picking rate and picking efficiency.

[0026] 2. The chain-fed pineapple harvester of the present invention is provided with a guide plate to separate the pineapple plants on both sides, and at the same time, the stems and leaves of some target pineapple plants are pushed away to reduce the interference of the stems and leaves on the chain conveying mechanism. At the same time, a conveying channel is provided, and a certain space is reserved in the conveying channel to avoid the accumulation of a large amount of stem and leaf residues during harvesting, which causes the chain conveying mechanism to be unable to operate. The guide plate and the U-shaped middle plate are used to reduce the resistance of the pineapple harvester during operation, and increase the harvesting rate of agricultural machinery.

[0027] 3. The chain-fed pineapple harvesting machine of the present invention can dump the pineapple fruits and convey them to the fruit breaking device. The chain conveying mechanism cooperates with the fruit breaking device to separate the pineapple fruits from the pineapple stems, thereby completing the picking of the pineapple fruits and ensuring the quality of the picking.

[0028] 4. The chain-fed pineapple harvesting machine of the present invention harvests and transports pineapple fruits by combining a chain conveying mechanism, a supporting plate and a U-shaped middle plate, thereby minimizing the damage caused when picking pineapples and reducing the damage rate of pineapples.

[0029] 5. The chain-fed pineapple harvester of the present invention is simple to assemble and has low cost. It can reduce the accumulation and blockage of stems and leaves of pineapple plants during the harvesting process, improve the clean picking rate and picking efficiency, and increase the service life of the chain-fed pineapple harvester. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The present invention is a left side view of a chain-fed pineapple harvester with adjustable angle and height.

[0031] Figure 2 It is a schematic diagram of the three-dimensional structure of the chain-fed pineapple harvester of the present invention.

[0032] Figure 3 It is a schematic diagram of the installation of the height adjustment device and the angle adjustment mechanism in the present invention.

[0033] Figure 4 It is a schematic diagram of the three-dimensional structure of the chain-type pineapple harvesting platform in the present invention.

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the fruit breaking device in the present invention.

[0035] Figure 6 It is a schematic diagram of the installation of the rack and the mounting frame in the present invention. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0037] Example 1

[0038] See also Figure 1-Figure 6 The present embodiment discloses a chain-fed pineapple harvesting machine with adjustable angle and height, comprising a frame 5, a picking device arranged at the front end of the frame 5 for picking pineapple fruits, and a height adjusting device 1 for adjusting the height of the picking device.

[0039] See also Figure 1-Figure 6The picking device includes a mounting frame 7, a chain pineapple harvesting platform 6, a fruit breaking device 3 and an angle adjustment mechanism 2; the rear end of the chain pineapple harvesting platform 6 is rotatably connected to the mounting frame 7, and the angle adjustment mechanism 2 is used to adjust the rotation angle of the chain pineapple harvesting platform 6 on the mounting frame 7; the fruit breaking device 3 is arranged at the front end of the mounting frame 7, and is used to separate the pineapple fruit from the pineapple stem; the chain pineapple harvesting platform 6 includes a harvesting frame, a plurality of conveying channels 6-13 arranged on the harvesting frame, a plurality of guide plates 4 arranged at the front end of the harvesting frame, a U-shaped middle plate 6-9 arranged on each conveying channel 6-13, a chain conveying mechanism 6-2 arranged on both sides of each conveying channel 6-13, and a supporting plate 6-8 arranged on the chain conveying mechanism 6-2; the rear end of the harvesting frame is rotatably connected to the mounting frame 7, and the space between two adjacent guide plates 4 constitutes the entrance of each conveying channel 6-13.

[0040] See also Figure 1-Figure 6 The chain conveyor mechanism 6-2 is used for harvesting, conveying and transmitting pineapple fruits to the fruit breaking device 3, and at the same time participates in the separation of pineapple fruits from stems. The supporting plate 6-8 is used to support the pineapple fruits when conveying the pineapple fruits to prevent the pineapple fruits from rolling and causing damage; the guide plate 4 is arranged in a triangular shape, and is used to straighten the pineapple plants, to lift up the pineapple plants in different lodging states, and at the same time to push away the pineapple plants and the stems and leaves of the pineapple plants on both sides, which can reduce the stems and leaves of the pineapple plants entering the chain conveyor mechanism 6-2, reduce the occurrence of blockage, and improve the harvesting efficiency and net harvesting rate; the U-shaped middle plate 6-9 is used to auxiliary support the pineapple fruits to prevent the pineapple fruits from falling.

[0041] See also Figure 1-Figure 6 The harvesting frame includes a mounting rod 6-6 and a plurality of vertical long boards 6-3; the mounting rod 6-6 is rotatably mounted on the mounting frame 7, the rear end of the vertical long board 6-3 is fixed on the mounting rod 6-6, and the guide plate 4 is fixed on the front end of the vertical long board 6-3; the space between two adjacent vertical long boards 6-3 constitutes the conveying channel 6-13. In the above structure, the vertical long board 6-3 can not only play a role in mounting the guide plate 4, but also play a role in separating the conveying channel 6-13, ensuring that the pineapple fruits can fall into the conveying channel 6-13, so as to realize the simultaneous picking of multiple rows of pineapples.

[0042] See also Figure 1-Figure 6In this embodiment, there are three conveying channels 6-13, four guide plates 4, and six groups of chain conveying mechanisms 6-2; each conveying channel 6-13 is provided with two groups of chain conveying mechanisms 6-2. The guide plate 4 is bolted to the front end of the vertical long plate 6-3. In this embodiment, the number of conveying channels 6-13 can be set according to demand. When working in different pineapple fields, the number and spacing of the chain conveying mechanisms 6-2 can be adjusted to adapt to the harvesting of pineapples with different planting spacings.

[0043] See also Figure 1-Figure 6 The rear end of the U-shaped middle plate 6-9 is fixed on the mounting rod 6-6, and a U-shaped groove is provided on the U-shaped middle plate 6-9, the opening of which is located at the front end of the U-shaped middle plate 6-9, wherein the opening of the U-shaped groove is conical. The purpose is to gather the stems and leaves that are not separated on the pineapple plant during the harvesting work, reduce the interference of the stems and leaves during the harvesting work, and reduce the stem and leaf residues that are drawn into the chain conveying mechanism 6-2, and the opening of the U-shaped groove is conical to play a guiding role.

[0044] See also Figure 4 The rear end of the U-shaped middle plate 6-9 is fixed on the mounting rod 6-6 through the T-shaped plate 6-7, and the U-shaped middle plate 6-9 is set on the T-shaped plate 6-7 by bolts.

[0045] See also Figure 1-Figure 6 The chain conveyor mechanism 6-2 includes a conveyor chain, a conveyor driving sprocket and a conveyor driven sprocket arranged on the side of the vertical long plate 6-3, the conveyor chain is connected to the conveyor driving sprocket and the conveyor driven sprocket, and the support plate 6-8 is installed on the conveyor chain. Through the rotation of the conveyor chain, the pineapple fruit can be fed and conveyed, and the support plate 6-8 can support the pineapple fruit during the conveying process.

[0046] See also Figure 4 The conveying driving sprocket and the conveying driven sprocket are connected to the side of the vertical long board 6-3 through the bearing 6-5. There is a gap between the conveying driving sprocket and the conveying driven sprocket and the side of the vertical long board 6-3. The chain drive is more suitable for high power and heavy load than other transmission methods. At the same time, the chain drive is more suitable for the harsh environment of the pineapple field, so the chain drive has a longer service life than other transmissions. The conveying driving sprocket and the conveying driven sprocket have a gap with the side of the vertical long board 6-3, in order to reduce the accumulation of pineapple plant stems and leaves after being crushed by the transmission chain, and reduce the impact of the pineapple plant stems and leaves on the subsequent pineapple harvesting work.

[0047] See also Figure 1-Figure 6The chain pineapple harvesting platform 6 also includes a conveying drive mechanism for driving the chain conveying mechanism 6-2 to rotate, and the conveying drive mechanism includes a driving shaft 6-1 rotatably arranged on the vertical long plate 6-3 and a conveying drive motor 6-10 for driving the driving shaft 6-1 to rotate; all the conveying active sprockets are connected to the driving shaft 6-1. In the above structure, by setting a conveying drive motor 6-10 and a driving shaft 6-1, all the chain conveying mechanisms 6-2 can be synchronized to realize the transportation of pineapple fruits. The structure is not only compact, but also can save resources.

[0048] See also Figure 4 The two sides of the U-shaped intermediate plate 6-9 are located in the middle of the conveyor chain. Its function is to assist in supporting the pineapple fruit and prevent it from falling.

[0049] See also Figure 4 , each conveyor chain is provided with a plurality of supporting plates 6-8, and the plurality of supporting plates 6-8 are evenly arranged on the conveyor chain; the supporting plates 6-8 include a bending angle and a bending right angle; the supporting plates 6-8 on the conveyor chains on both sides of the conveying channel 6-13 are arranged symmetrically with each other; the bending angle faces the inside of the conveying channel 6-13. The purpose is that the outer bending right angle can support the pineapple fruit, and the inner bending angle can make the stems and leaves of the pineapple plant automatically flow out along the pineapple stems in the bending direction during the harvesting work, instead of accumulating on the conveyor chain or winding on the supporting plates 6-8, thereby reducing the interference of the stems and leaves on the harvesting work.

[0050] See also Figure 1-Figure 6 The fruit breaking device 3 includes multiple groups of fruit picking rod groups and a fruit breaking driving mechanism for driving the fruit picking rod groups to rotate and revolve; the fruit breaking driving mechanism includes a fruit picking shaft 3-4 rotatably arranged at the front end of the mounting frame 7, a disc 3-1 respectively arranged at both ends of the fruit picking shaft 3-4, and a fruit picking driving motor 3-6 for driving the fruit picking shaft 3-4 to rotate; the fruit picking rod group is arranged between the two discs 3-1 and is rotatably connected to the outside of the disc 3-1; each group of the fruit picking rod group is connected to the fruit picking shaft 3-4 through a transmission mechanism. In the above structure, the fruit picking driving motor 3-6 drives the fruit picking shaft 3-4 to move, drives the two discs 3-1 to move, realizes the revolution of the fruit picking rod group, and moves the pineapple fruit. The rotation of the fruit picking shaft 3-4 is transmitted through the transmission mechanism, which drives the fruit picking rod group to rotate. Through the revolution and rotation of the fruit picking rod group, in conjunction with the chain pineapple harvesting platform 6, the pineapple fruit can be separated from the stem and the pineapple can be harvested.

[0051] The fruit picking lever groups in this embodiment are two groups, and the two groups are arranged to be distributed at 180 degrees.

[0052] See also Figure 1-Figure 6The fruit picking shaft 3-4 is connected to the front end of the mounting frame 7 through an L-shaped connecting plate 3-7; the fruit picking shaft 3-4 is rotatably connected to the L-shaped connecting plate 3-7, and the L-shaped connecting plate 3-7 is fixedly connected to the mounting frame 7.

[0053] See also Figure 5 The transmission mechanism is a chain transmission mechanism, including a transmission main sprocket arranged on the fruit picking shaft 3-4, a transmission driven sprocket arranged on the fruit picking rod group, and a transmission chain connected between the transmission main sprocket and the transmission driven sprocket. By setting the above structure, the self-rotation of the fruit picking rod group is realized.

[0054] See also Figure 5 Each group of the fruit picking rod group includes a directional rotating shaft arranged between two discs 3-1, a connecting square tube 3-2 sleeved on the outside of the directional rotating shaft, and a plurality of fruit breaking soft rods 3-3 arranged on the connecting square tube 3-2; the plurality of fruit breaking soft rods 3-3 are arranged equidistantly along the extension direction of the connecting square tube 3-2, and the fruit breaking soft rods 3-3 are arranged vertically downward; the moving sprocket is arranged on the directional rotating shaft. In the above structure, the directional rotating shaft is rotatably connected to the outside of the disc 3-1 and is fixedly connected to the connecting square tube 3-2. The connecting square tube 3-2 can better install the fruit breaking soft rod 3-3. When the fruit breaking soft rod 3-3 rotates around the fruit picking rotating shaft 3-4, it can move the pineapple fruit. In conjunction with the chain pineapple harvesting platform 6, the pineapple fruit can be separated from the stem. The chain conveyor mechanism 6-2 dumps the pineapple fruits and transfers them to the fruit breaking device 3. The pineapple fruits are separated from the pineapple stems by the rotation of the fruit breaking soft rod 3-3, and the picking of the pineapple fruits is completed, ensuring the quality of the picking. At the same time, the fruit breaking soft rod 3-3 can maximize the protection of the pineapple fruits from damage when beating the pineapple fruits.

[0055] See also Figure 1-Figure 6 The height adjustment device 1 includes a lifting and lowering night-pressing rod 1-2; the upper end of the lifting and lowering night-pressing rod 1-2 is connected to the upper end of the frame 5, and the lower end of the lifting and lowering night-pressing rod 1-2 is connected to the upper end of the mounting frame 7. The height adjustment of the mounting frame 7 is achieved through the telescopic movement of the lifting and lowering night-pressing rod 1-2, thereby achieving the height adjustment of the entire picking device.

[0056] See also Figure 1-Figure 6 The angle adjustment mechanism 2 includes an angle adjustment hydraulic rod 2-1; one end of the angle adjustment hydraulic rod 2-1 is hinged to the upper end of the mounting frame 7, and the other end of the angle adjustment hydraulic rod 2-1 is hinged to the front end of the harvesting frame. Through the telescopic movement of the angle adjustment hydraulic rod 2-1, the harvesting frame rotates relative to the mounting frame 7, so as to adjust the angle of the harvesting frame, thereby achieving the angle adjustment of the entire chain pineapple harvesting platform 6.

[0057] See also Figure 1-Figure 6The lifting and lowering night rods 1-2 and the angle adjustment hydraulic rods 2-1 are both set in two groups. Ensure the stability of height and angle adjustment. The height adjustment device 1 and the angle adjustment mechanism 2 are controlled by hydraulic rods. Because in agricultural machinery, the use of hydraulic rods has many advantages over the use of pneumatic rods. The hydraulic system can provide higher pressure and greater force, so the hydraulic rod can handle a larger load; moreover, the hydraulic rod can provide more precise control, which is conducive to improving the harvesting efficiency of pineapples; at the same time, the hydraulic system has stronger adaptability and longer service life.

[0058] See also Figure 1-Figure 6 The mounting frame 7 is connected to the frame 5 through a guide rail and a slider. On the one hand, the horizontal shaking of the chain pineapple harvesting platform 6 can be limited to ensure stability; on the other hand, it can ensure that the picking device can move flexibly in the vertical direction.

[0059] See also Figure 1-Figure 6 The angle adjustment hydraulic rod 2-1 is connected to the horizontal channel steel of the mounting frame 7 through the U-shaped support 2-4, and the telescopic member 2-2 of the angle adjustment hydraulic rod 2-1 is also connected to the connection hole of the vertical long plate 6-3; the lifting and lowering night rod 1-2 is connected to the horizontal channel steel 1-3 of the frame 5 through the small rod 1-1. The angle adjustment hydraulic rod 2-1 is connected to the U-shaped support 2-4 through the small rod 2-3.

[0060] See also Figure 1-Figure 6 The working principle of the above-mentioned chain-fed pineapple harvester with adjustable angle and height is:

[0061] The chain-fed pineapple harvesting machine is mounted on an agricultural machine for use. When harvesting on a pineapple field, the agricultural machine is started first, and the agricultural machine moves forward, driving the chain-fed pineapple harvesting machine to move forward, and the power is started. The height adjustment device 1 and the angle adjustment mechanism 2 enter the ready-to-work state, the chain pineapple harvesting platform 6 starts to work, each chain conveying mechanism 6-2 starts to rotate, and the fruit breaking device 3 also starts to work. When the agricultural machine moves to a distance in front of the pineapple fruit, according to the height of the pineapple fruit growth and the tilting and lodging state of the pineapple plant, the height adjustment device 1 and the angle adjustment mechanism 2 work, and the height adjustment device 1 adjusts the height of the picking device to a suitable position, thereby realizing the height adjustment of the chain pineapple harvesting platform 6 and the fruit breaking device 3, and the angle adjustment mechanism 2 adjusts the angle of the chain pineapple harvesting platform 6. Specifically, when the U-shaped middle plate 6-9 in the chain pineapple harvesting platform 6 is parallel to the expected pineapple fruit lower end stem fracture plane, the height adjustment device 1 and the angle adjustment mechanism 2 stop working, and the chain pineapple harvesting platform 6 reaches the optimal harvesting height.

[0062] The agricultural machinery continues to advance forward, and the guide plate 4 on the chain pineapple harvesting platform 6 separates the pineapple plants on both sides, and at the same time pushes away the stems and leaves of some target pineapple plants to reduce the interference of the stems and leaves on the chain conveying mechanism 6-2, and the pineapple fruit will enter the conveying channel 6-13; as it continues to advance, the supporting plate 6-8 begins to contact with the pineapple fruit, and the pineapple fruit and the stem are dumped along with the movement of the chain conveying mechanism 6-2, and at the same time, the pineapple fruit moves toward the fruit breaking device 3. When the pineapple fruit moves to the middle part of the chain conveying mechanism 6-2 along with the chain conveying mechanism 6-2, the fruit breaking soft rod 3-3 in the fruit breaking device 3 contacts with the pineapple fruit along with the movement of the disk 3-1, and the contact between the fruit breaking soft rod 3-3 and the pineapple fruit separates the pineapple fruit from the stem, so that the pineapple fruit falls on the U-shaped middle plate 6-9, and along with the movement of the chain conveying mechanism 6-2 and the supporting plate 6-8, the pineapple fruit is conveyed backward, and finally leaves the conveying channel 6-13 and enters the interior of the agricultural machinery for collection, so as to harvest the pineapple fruit.

[0063] Example 2

[0064] See also Figure 5 The other structures in this embodiment are the same as those in embodiment 1, except that the fruit breaking device 3 includes a plurality of groups of fruit picking rod groups and a fruit breaking driving mechanism; the fruit breaking driving mechanism includes a fruit picking shaft 3-4 rotatably arranged at the front end of the mounting frame 7, discs 3-1 respectively arranged at both ends of the fruit picking shaft 3-4, and a fruit picking driving motor 3-6 for driving the fruit picking shaft 3-4 to rotate; the fruit picking rod group is arranged between the two discs 3-1 and is rotatably connected to the outside of the disc 3-1; each group of the fruit picking rod group is connected to the mounting frame 7 through a transmission mechanism.

[0065] The fruit picking shaft 3-4 is connected to the front end of the mounting frame 7 through an L-shaped connecting plate 3-7; the fruit picking shaft 3-4 is rotatably connected to the L-shaped connecting plate 3-7, and the L-shaped connecting plate 3-7 is fixedly connected to the mounting frame 7.

[0066] The transmission mechanism is a chain transmission mechanism, including a moving sprocket, a fixed sprocket and a chain; the fixed sprocket is fixedly connected to the L-shaped connecting plate 3-7, the fixed sprocket is coaxially arranged with the fruit picking shaft 3-4, and the moving sprocket is connected to the fruit picking rod group (directional shaft); one end of the chain is meshed with the fixed sprocket, and the other end is meshed with the moving sprocket. In the above structure, the fixed sprocket is fixedly connected to the L-shaped connecting plate 3-7, so that the fixed sprocket is located at the center of the disk 3-1 but cannot rotate, the fruit picking shaft 3-4 drives the disk 3-1 to rotate, and the fruit picking rod group and the moving sprocket located on the fruit picking rod group will also rotate around the fruit picking shaft 3-4. Under the action of the chain, the moving sprocket itself rotates, driving the fruit picking rod group itself to rotate, and the moving sprocket and the fixed sprocket form planetary motion, so that the fruit breaking soft rod 3-3 always remains in a vertical state. In the vertical state, the flexible fruit-breaking soft rod 3-3 always pushes the pineapple in one direction, which is conducive to the normal development of the picking work, prevents the pineapple from being overturned by forces in other directions, and improves the success rate of picking.

[0067] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A chain-fed pineapple harvester with adjustable angle and height, characterized in that: It comprises a frame, a picking device arranged at the front end of the frame for picking pineapple fruits, and a height adjusting device for adjusting the height of the picking device; wherein, The picking device includes a mounting frame, a chain pineapple picking platform, a fruit breaking device and an angle adjustment mechanism; the rear end of the chain pineapple picking platform is rotatably connected to the mounting frame, and the angle adjustment mechanism is used to adjust the rotation angle of the chain pineapple picking platform on the mounting frame; the fruit breaking device is arranged at the front end of the mounting frame, and is used to separate pineapple fruits from pineapple stems; the chain pineapple picking platform includes a picking frame, a plurality of conveying channels arranged on the picking frame, a plurality of guide plates arranged at the front end of the picking frame, a U-shaped middle plate arranged on each conveying channel, a chain conveying mechanism arranged on both sides of each conveying channel, and a supporting plate arranged on the chain conveying mechanism; the rear end of the picking frame is rotatably connected to the mounting frame, and the space between two adjacent guide plates constitutes the entrance of each conveying channel.

2. The chain-fed pineapple harvesting machine according to claim 1, characterized in that: The harvesting frame includes a mounting rod and a plurality of vertical long boards; the mounting rod is rotatably arranged on the mounting frame, the rear end of the vertical long board is fixed on the mounting rod, and the guide plate is fixed on the front end of the vertical long board; the space between two adjacent vertical long boards constitutes the conveying channel.

3. The chain-fed pineapple harvesting machine according to claim 2, characterized in that: The rear end of the U-shaped middle plate is fixed on the mounting rod, and a U-shaped groove is arranged on the U-shaped middle plate, and the opening of the U-shaped groove is located at the front end of the U-shaped middle plate.

4. The chain-fed pineapple harvesting machine according to claim 2, characterized in that: The chain conveying mechanism comprises a conveying chain, a conveying driving sprocket and a conveying driven sprocket arranged on the side of the vertical long plate, the conveying chain is connected to the conveying driving sprocket and the conveying driven sprocket, and the supporting plate is installed on the conveying chain.

5. The chain-fed pineapple harvesting machine according to claim 4, characterized in that: The chain pineapple harvesting platform also includes a conveying drive mechanism for driving the chain conveying mechanism to rotate, and the conveying drive mechanism includes a driving shaft rotatably arranged on a vertical long plate and a conveying drive motor for driving the driving shaft to rotate; all the conveying active sprockets are connected to the driving shaft.

6. The chain-fed pineapple harvester according to claim 4, characterized in that: Both sides of the U-shaped middle plate are located in the middle of the conveyor chain.

7. The chain-fed pineapple harvester according to claim 4, characterized in that: Each conveying chain is provided with a plurality of supporting plates; the supporting plates include a bending oblique angle and a bending right angle; the supporting plates on the conveying chains located on both sides of the conveying channel are arranged symmetrically with each other; and the bending oblique angle faces the inside of the conveying channel.

8. The chain-fed pineapple harvester according to claim 1, characterized in that: The fruit breaking device includes a plurality of groups of fruit picking rod groups and a fruit breaking driving mechanism for driving the fruit picking rod groups to rotate and revolve; the fruit breaking driving mechanism includes a fruit picking shaft rotatably arranged at the front end of the mounting frame, discs respectively arranged at both ends of the fruit picking shaft, and a fruit picking driving motor for driving the fruit picking shaft to rotate; the fruit picking rod group is arranged between the two discs and rotatably connected to the outside of the discs; each group of the fruit picking rod group is connected to the fruit picking shaft through a transmission mechanism.

9. The chain-fed pineapple harvester according to claim 1, characterized in that: The height adjustment device comprises a lifting and lowering night-pressing rod; the upper end of the lifting and lowering night-pressing rod is connected to the upper end of the frame, and the lower end of the lifting and lowering night-pressing rod is connected to the upper end of the mounting frame.

10. The chain-fed pineapple harvester according to claim 1, characterized in that: The angle adjustment mechanism comprises an angle adjustment hydraulic rod; one end of the angle adjustment hydraulic rod is hinged to the upper end of the mounting frame, and the other end of the angle adjustment hydraulic rod is hinged to the front end of the harvesting frame.

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