A pineapple harvesting device with double-row chain-type seedling support and double-axis stem pulling roller group

Abstract

The present invention discloses a pineapple harvesting device with a double-row chain seedling supporter and a double-axis stem pulling roller group, comprising a harvesting mechanism, which is installed on a high-bed operating machine through a lifting device; the harvesting mechanism comprises a mounting frame, two rows of harvesting modules and a conveying mechanism; each row of the harvesting modules comprises a chain seedling supporter for straightening pineapple fruits in different postures, a double-axis stem pulling roller group for separating pineapple fruits from plants, a fruit blocking plate arranged outside the double-axis stem pulling roller group, and a driving mechanism for driving the double-axis stem pulling roller group to move; a power transmission mechanism is arranged between the double-axis stem pulling roller group and the chain seedling supporter. The pineapple harvesting device can straighten normally growing or lodging pineapple fruits through the chain seedling supporter and push them into the opening of the double-axis stem pulling roller group, and separate the pineapple fruits from the plant through the double-axis stem pulling roller group, thereby achieving pineapple harvesting and ensuring harvesting quality.

Description

Technical Field

[0001] The invention relates to the technical field of pineapple harvesting, and in particular to a pineapple harvesting device comprising a double-row chain-type seedling supporter and a double-axis stem pulling roller group. Background Art

[0002] At present, the mechanization and automation level of pineapple harvesting is low, and most pineapples are harvested manually, which is inefficient, slow, and labor-intensive. There are relatively few mechanized equipment for pineapple harvesting, and most of them are complex in structure, high in cost, and poor in versatility. They are difficult to adapt to various harvesting environments and difficult to achieve batch harvesting.

[0003] In large-scale pineapple planting areas, large-scale pineapple picking equipment is often used, and the equipment usually harvests multiple rows of pineapples at the same time in one trip. During the growth process of pineapples, not all pineapple fruits grow in a normal posture. For such pineapple fruits growing in an abnormal posture, the angle of the cutter is usually adjusted to adapt to the posture of the pineapple fruit. However, due to large-scale picking, the pineapple fruits entering the cutter at the same time cannot be guaranteed to have the same posture. Therefore, some pineapple fruits may be missed during the picking process, or the pineapple fruits may be damaged during the picking process, making it difficult to ensure the picking quality. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned problems and provide a pineapple harvesting device with a double-row chain seedling supporter and a double-axis stem pulling roller group. The pineapple harvesting device can straighten normally growing or lodged pineapple fruits and push them into the openings of the double-axis stem pulling roller group through the chain seedling supporter, and separate the pineapple fruits from the plants through the double-axis stem pulling roller group, thereby achieving the harvesting of pineapples and ensuring the harvesting quality.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A pineapple harvesting device with a double-row chain-type seedling supporter and a double-axis stem pulling roller group, comprising a harvesting mechanism,

[0007] The harvesting mechanism is installed on the high-bed working machine through a lifting device; the harvesting mechanism includes a mounting frame, two rows of harvesting modules arranged on the mounting frame, and a conveying mechanism arranged between the two rows of harvesting modules for conveying the harvested pineapple fruits to the high-bed working machine; wherein,

[0008] Each row of the harvesting modules includes a chain seedling supporter for straightening pineapple fruits in different postures, a double-axis stem pulling roller group for separating pineapple fruits from plants, a fruit blocking plate arranged on the outside of the double-axis stem pulling roller group, and a driving mechanism for driving the double-axis stem pulling roller group to move; wherein, a power transmission mechanism for transmitting the power of the double-axis stem pulling roller group to the chain seedling supporter is provided between the double-axis stem pulling roller group and the chain seedling supporter.

[0009] The working principle of the pineapple harvesting device with double-row chain-type seedling support and double-axis stem pulling roller group is as follows:

[0010] In the pineapple field, first adjust the height of the harvesting mechanism from the ground and the angle of inclination to the ground through the lifting device according to the actual height of the pineapple fruits and the undulations of the ground, so that it reaches the appropriate height and angle for harvesting the pineapple fruits, avoiding collision with ground obstacles and damaging the pineapple fruits. When the high-bed operating machine is moving forward, the driving mechanism will drive the double-axis stem-pulling roller group to move, and under the action of the power transmission mechanism, the chain seedling supporter will also move and enter the working state; as the high-bed operating machine moves forward, the corresponding pineapple plants will enter the two rows of chain seedling supporters, and the fallen pineapple plants will be straightened to keep the pineapple plants upright. Under the action of the chain seedling supporter and the continuous movement of the high-bed operating machine, the pineapple plants will enter the double-axis stem-pulling roller group. Under the squeezing and pulling of the double-axis stem-pulling roller group, the stems of the pineapple plants will be broken, and the pineapple fruits will be separated from the pineapple plants. Under the obstruction of the fruit blocking plate, the pineapple fruits cannot move outward, but will move inward and fall onto the conveying mechanism. The conveying mechanism transports the pineapple fruits to the high-bed operating machine for collection.

[0011] A preferred embodiment of the present invention, wherein the double-axis stem pulling roller group includes two stem pulling rollers rotatably arranged on a mounting frame, the two stem pulling rollers are distributed in a V-shape, and the space between the two stem pulling rollers forms a V-shaped opening; the driving mechanism is connected to the rear ends of the two stem pulling rollers, and the two stem pulling rollers rotate in opposite directions. In the above structure, the chain seedling supporter will lift up the normally growing or fallen pineapple plants, and push the pineapple plants to the middle of the two stem pulling rollers. As the high bed operating machine moves forward, the pineapple plants will enter the front end of the V-shaped opening of the stem pulling roller. As the high bed operating machine continues to move forward, the pineapple plants will enter the rear end of the V-shaped opening. Under the relative rotation of the two stem pulling rollers, the two stem pulling rollers squeeze and pull the stems of the pineapple plants, and the pineapple fruits will be stuck between the two stem pulling rollers. With the squeezing and pulling, the pineapple stems will break and the pineapple fruits will be separated from the plants. The separated pineapple fruits will move to the left and right sides of the stem pulling rollers with the vibration of the high bed operating machine. The pineapples moving outward will be unable to move due to the action of the fruit blocking plate. Therefore, the separated pineapple fruits will move inward and fall into the conveying mechanism, thereby realizing the harvesting of the pineapples.

[0012] Preferably, a spiral rubber strip is provided at the front end of the stem pulling roller, and a plurality of stem pulling plates are provided at the rear end, and the plurality of stem pulling plates are evenly distributed along the circumferential direction. In the above structure, when the pineapple plant enters the front end of the V-shaped opening of the stem pulling roller, the continuous rotation of the two stem pulling rollers cooperates with the spiral rubber strip at the front end to provide the pineapple plant with support force on the left and right sides and thrust for inward movement, guiding the pineapple plant to move toward the rear end of the V-shaped opening. When the pineapple plant is located at the rear end of the V-shaped opening, the stem pulling plates on the two stem pulling rollers will intermittently engage with each other under the rotation of the stem pulling rollers, and squeeze and pull the stem of the pineapple plant, and the pineapple fruit will be stuck between the two stem pulling rollers. The stem pulling plates at the rear end of the two stem pulling rollers will provide pressure on both sides and downward pulling force to the stem of the pineapple plant. The two stem pulling rollers support the pineapple fruit and provide upward support for the pineapple fruit, while the stem of the pineapple plant provides downward pulling force to the pineapple fruit. Under the joint action of these forces, the pineapple stem is broken, and the pineapple fruit is separated from the pineapple plant.

[0013] Preferably, the chain seedling supporting device includes two groups of chain seedling supporting components distributed in a V shape, and the two groups of chain seedling supporting components correspond to the two stem pulling rollers one by one; each group of chain seedling supporting components includes a driving gear, a driven gear, a seedling supporting chain meshing between the driving gear and the driven gear, and a plurality of seedling supporting parts arranged on the seedling supporting chain, which are arranged on a mounting frame; the power transmission mechanism includes two groups of transmission components, and each group of transmission components corresponds to each group of chain seedling supporting components one by one; one end of the transmission component is connected to the front end of the stem pulling roller, and the other end is connected to the driving gear. By setting the above structure, when the driving mechanism drives the two stem pulling rollers to rotate, the rotating stem pulling rollers drive the driving gear to rotate under the action of the transmission component, thereby driving the seedling supporting chain to rotate. When picking pineapples, the high-bed machine moves forward, and the seedling support chain will lift up the fallen pineapple plants and push them between the two stem-pulling rollers. Specifically, the pineapple plants that are tilted to the left or right will be lifted up by the seedling support parts of the seedling support chain, and continue to provide support on both sides to keep the pineapple plants upright. The pineapple plants that are tilted forward or backward are also lifted up by the seedling support parts of the seedling support chain, and under the push of the seedling support parts, the pineapple plants are kept upright and pushed to the front end of the V-shaped opening in the middle of the stem-pulling roller, and the stem-pulling roller will pick the pineapple fruits. Since the two stem-pulling rollers rotate in opposite directions, the two seedling support chains also rotate in opposite directions, both of which provide power to push the pineapple plants backward.

[0014] Preferably, the driving mechanism comprises a reducer arranged on the mounting frame and a driver arranged on the reducer, wherein the driver is connected to the input end of the reducer, and the output end of the reducer is connected to the rear ends of the two stem pulling rollers. By setting the above structure, the stem pulling rollers can be driven.

[0015] Preferably, the transmission assembly is a worm gear mechanism, the worm of which is connected to the front end of the stem pulling roller, and the worm of which is coaxially arranged with the driving gear. Power transmission can be achieved through the worm gear mechanism, and the rotation of the stem pulling roller and the seedling supporting chain can be achieved through a power source of the driver, making the structure simpler and more compact, while also saving resources.

[0016] Preferably, two support rods are provided between the harvesting mechanism and the high bed machine, the two support rods are distributed on both sides of the harvesting mechanism, one end of the support rod is hinged to the frame of the high bed machine, and the other end is hinged to the mounting frame. By providing the support rods and combining the lifting device, the installation stability of the harvesting mechanism is further ensured.

[0017] Preferably, the lifting device comprises three lifting hydraulic rods arranged between the frame and the mounting frame, the three lifting hydraulic rods are distributed in a triangular shape, the upper ends of the lifting hydraulic rods are hinged to the frame, and the lower ends are hinged to the mounting frame. Through the telescopic movement of the lifting hydraulic rods, the height of the harvesting mechanism from the ground and the inclination angle with the ground can be adjusted to reach a height and angle suitable for harvesting pineapple fruits, avoiding collision with ground obstacles and damaging the pineapple fruits.

[0018] Preferably, the mounting frame is connected by two pieces of structural steel to form a T-shaped structure, and harvesting support frames are respectively provided on both sides of the mounting frame, and the two rows of harvesting modules are respectively installed on the two harvesting support frames; two L-shaped plates are provided at the front end of the harvesting support frame, and the two L-shaped plates correspond to the two groups of chain seedling supporting assemblies one by one, and the transmission assembly is installed on the L-shaped plate; a guide mounting plate is provided at the front end of each L-shaped plate, and the two guide mounting plates are distributed in a V shape; the driven gear is installed on the guide mounting plate. By setting the above structure, the two guide mounting plates can not only install the chain seedling supporting assembly, but also play a guiding role for the pineapple plants. In addition, by setting the harvesting support frame and the L-shaped plate, the installation of each component can be facilitated, and the structure is very compact.

[0019] Preferably, the frame is further provided with two support wheels, which are located at the front end of the harvesting mechanism. By providing the support wheels, the walking stability of the high bed machine can be ensured, and the stability of harvesting can be ensured.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The pineapple harvesting device of the present invention can straighten the normally growing or lodged pineapple fruits and push them into the opening of the double-axis stem pulling roller group by arranging the chain seedling supporter, so that the pineapple plants have a better harvesting position and posture, which is conducive to separating the pineapples from the plants, improving the harvesting rate of the pineapples, and ensuring the harvesting quality.

[0022] 2. The pineapple harvesting device of the present invention adjusts the height of the harvesting mechanism from the ground and the inclination angle with the ground through the lifting device, so as to reach a height and angle suitable for harvesting pineapple fruits according to the fruit size, fruit height and terrain differences caused by the differences in pineapple varieties, avoids collision with ground obstacles and damage to pineapple fruits, realizes harvesting under different conditions, and has high flexibility; in a non-working state, the harvesting mechanism can be raised to facilitate the movement of the high-bed operation machine.

[0023] 3. The pineapple harvesting device of the present invention is provided with a fruit blocking plate on the outside. The fruit blocking plate can prevent the pineapples from falling and is conducive to transporting the pineapples to the central transport mechanism, which is conducive to the harvesting of the pineapples.

[0024] 4. The pineapple harvesting device of the present invention can harvest two rows of pineapples at a time by arranging a double-row harvesting module, thereby improving the harvesting efficiency.

[0025] 5. The pineapple harvesting device of the present invention adopts a double-axis stem pulling roller group, and a spiral rubber strip is arranged at the front end of the stem pulling roller. When the stem pulling roller rotates, the spiral rubber strip at the front end can provide a backward thrust for the pineapple plant as it rotates, and pushes the pineapple plant to the rear end of the stem pulling roller. The spiral rubber strip made of rubber material can also reduce the damage to the pineapple fruit. The stem pulling plates at the rear end of the stem pulling roller are meshed with each other, so that the pineapple stem is subjected to tension, and the pineapple fruit is subjected to the supporting force of the stem pulling roller and the tension of the pineapple stem. Under the joint action of these forces, the pineapple fruit is separated from the plant to achieve the harvesting of the pineapple. The joint action of the two is conducive to improving the success rate of pineapple harvesting and reducing the damage to the pineapple fruit.

[0026] 6. The pineapple harvesting device of the present invention can improve the stress conditions of the mounting frame and the lifting hydraulic rod by arranging the support rod, which is beneficial to the normal lifting and lowering of the harvesting mechanism, prevents severe local stress, and further ensures the installation stability of the harvesting mechanism. Two support wheels are installed at the front end of the frame, which can effectively improve the stability of the entire high-bed operation machine and is beneficial to the harvesting of pineapples. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1-Figure 3 The present invention is a schematic structural diagram of a pineapple harvesting device of a double-row chain-type seedling supporter and a double-axis stem pulling roller group according to a specific embodiment of the present invention, wherein: Figure 1 For the main view, Figure 2-Figure 3 It is a stereogram from different viewing directions.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the harvesting mechanism in the present invention.

[0029] Figure 5-Figure 6It is a structural schematic diagram of the harvesting module in the present invention.

[0030] Figure 7 It is a schematic diagram of the structure of the mounting frame in the present invention.

[0031] Figure 8-Figure 9 This is a schematic diagram of the structure of the harvesting module in the present invention without part of the structure, wherein: Fig. 9 The reducer in the embodiment eliminates the need for a reducer housing.

[0032] Fig.10 It is a schematic diagram of the internal structure of the transmission component in the present invention.

[0033] Figure 11-Figure 12 It is a schematic diagram of the harvesting operation of the harvesting mechanism of the present invention lifting and pushing the fallen pineapple plants; wherein, Fig.11 The left arrow in the figure indicates the rotation direction of the seedling supporting chain on the left side, and the right arrow indicates the rotation direction of the seedling supporting chain on the right side; Fig.12 The upper arrow in the figure indicates the forward direction of the raised bed operating machine, and the lower arrow indicates the force direction of the pineapple plant.

[0034] Figure 13-14 The schematic diagram of the pineapple plant harvesting operation is shown in FIG. 1 , wherein the spiral rubber strip at the front end of the stem pulling roller in the present invention pushes the pineapple plant for harvesting; Fig.13 The left arrow indicates the rotation direction of the stem pulling roller located on the left, and the right arrow indicates the rotation direction of the stem pulling roller located on the right; Fig.14 The upper arrow in the figure indicates the forward direction of the raised bed operating machine, and the lower arrow indicates the force direction of the pineapple plant.

[0035] Figure 15-16 This is a schematic diagram of the pineapple harvesting operation in which the stem pulling plate at the rear end of the stem pulling roller is separated; wherein: Fig.15 The left arrow in the figure indicates the rotation direction of the stem pulling roller on the left side, and the right arrow indicates the rotation direction of the stem pulling roller on the right side; Fig.16 The upper arrow in the figure indicates the forward direction of the raised bed operating machine, and the lower arrow indicates the force direction of the pineapple plant.

[0036] Fig.17 It is a structural schematic diagram of another specific implementation mode of the double-axis stem pulling roller group in the present invention, and the four arrows correspond to the rotation directions of the two stem pulling rollers and the two seedling supporting chains respectively. DETAILED DESCRIPTION

[0037] 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.

[0038] Example 1

[0039] See also Figure 1-Figure 4 The present embodiment discloses a pineapple harvesting device with a double-row chain-type seedling support and a double-axis stem pulling roller group, including a harvesting mechanism 1, which is installed on a high-bed operating machine 2 through a lifting device 3; the harvesting mechanism 1 includes a mounting frame 4, two rows of harvesting modules 5 arranged on the mounting frame 4, and a conveying mechanism 19 arranged between the two rows of harvesting modules 5 for conveying the harvested pineapple fruits to the high-bed operating machine 2.

[0040] See also Figure 1-Figure 10 Each row of the harvesting modules 5 includes a chain seedling supporter 6 for straightening pineapple fruits in different postures, a double-axis stem pulling roller group 7 for separating pineapple fruits from plants, a fruit blocking plate 8 arranged on the outside of the double-axis stem pulling roller group 7, and a driving mechanism 9 for driving the double-axis stem pulling roller group 7 to move; wherein, a power transmission mechanism for transmitting the power of the double-axis stem pulling roller group 7 to the chain seedling supporter 6 is provided between the double-axis stem pulling roller group 7 and the chain seedling supporter 6.

[0041] See also Figure 1-Figure 10 The working principle of the pineapple harvesting device with double-row chain-type seedling support and double-axis stem pulling roller group is as follows:

[0042] In the pineapple field, first adjust the height of the harvesting mechanism 1 from the ground and the inclination angle to the ground through the lifting device 3 according to the actual height of the pineapple fruits and the undulation of the ground, so that it reaches a height and angle suitable for harvesting the pineapple fruits, avoiding collision with ground obstacles and damaging the pineapple fruits. When the high bed working machine 2 is moving forward, the driving mechanism 9 will drive the double-axis stem pulling roller group 7 to move, and under the action of the power transmission mechanism, the chain seedling supporter 6 will also move and enter the working state; as the high bed working machine 2 moves forward, the corresponding pineapple plants will enter the two rows of chain seedling supporters 6, and the fallen pineapple plants will be straightened so that the pineapple plants remain upright. Under the action of the chain seedling supporter 6 and the continuous movement of the high bed working machine 2, the pineapple plants will enter the double-axis stem pulling roller group 7. Under the squeezing and pulling of the double-axis stem pulling roller group 7, the stems of the pineapple plants will be broken, and the pineapple fruits will be separated from the pineapple plants. Under the obstruction of the fruit blocking plate 8, the pineapple fruits cannot move outward, and will move inward and fall onto the conveying mechanism 19. The conveying mechanism 19 conveys the pineapple fruits to the high bed working machine 2 for collection.

[0043] See also Figure 4-Figure 10The double-axis stem pulling roller group 7 includes two stem pulling rollers 7-1 rotatably arranged on the mounting frame 4, the two stem pulling rollers 7-1 are distributed in a V shape, and the space between the two stem pulling rollers 7-1 forms a V-shaped opening; the driving mechanism 9 is connected to the rear ends of the two stem pulling rollers 7-1, and the two stem pulling rollers 7-1 rotate in opposite directions. In the above structure, the chain seedling supporter 6 will lift up the normally growing or fallen pineapple plants, and push the pineapple plants to the middle of the two stem pulling rollers 7-1. As the high bed working machine 2 moves forward, the pineapple plants will enter the front end of the V-shaped opening of the stem pulling roller 7-1. As the high bed working machine 2 continues to move forward, the pineapple plants will enter the rear end of the V-shaped opening. Under the relative rotation of the two stem pulling rollers 7-1, the two stem pulling rollers 7-1 squeeze and pull the stems of the pineapple plants, and the pineapple fruits will be stuck between the two stem pulling rollers 7-1. With the squeezing and pulling, the pineapple stems are broken, and the pineapple fruits are separated from the plants. The separated pineapple fruits will move to the left and right sides of the stem pulling rollers with the vibration of the high bed working machine. The pineapples moving outward will be unable to move due to the action of the fruit blocking plate 8. Therefore, the separated pineapple fruits will move inward and fall into the conveying mechanism 19, thereby realizing the harvesting of the pineapples.

[0044] See also Figure 4-Figure 10 The front end of the stem pulling roller 7-1 is provided with a spiral rubber strip 7-2, and the rear end is provided with a plurality of stem pulling plates 7-3, and the plurality of stem pulling plates 7-3 are evenly distributed along the circumferential direction. In the above structure, when the pineapple plant enters the front end of the V-shaped opening of the stem pulling roller 7-1, the continuous rotation of the two stem pulling rollers 7-1 and the spiral rubber strip 7-2 at the front end can provide the pineapple plant with support on the left and right sides and thrust for inward movement, thereby guiding the pineapple plant to move toward the rear end of the V-shaped opening. When the pineapple plant is located at the rear end of the V-shaped opening, the stem pulling plates 7-3 on the two stem pulling rollers 7-1 will intermittently engage with each other under the rotation of the stem pulling roller 7-1. , and squeeze and pull the stem of the pineapple plant, and the pineapple fruit will be stuck between the two stem pulling rollers 7-1, and the stem pulling plates 7-3 at the rear end of the two stem pulling rollers 7-1 will provide two-side pressure and downward pulling force to the stem of the pineapple plant. The two stem pulling rollers 7-1 support the pineapple fruit and provide an upward supporting force for the pineapple fruit, while the stem of the pineapple plant provides a downward pulling force to the pineapple fruit. Under the joint action of these forces, the pineapple stem is broken, and the pineapple fruit is separated from the pineapple plant.

[0045] Furthermore, the stem pulling plate 7-3 is a steel plate with a 145° angle, and four stem pulling plates 7-3 are arranged on the surface of each stem pulling roller 7-1, evenly distributed at 90°. By arranging the steel plate with a 145° angle, the pineapple stem can be cut better.

[0046] See also Figure 4-Figure 10The spiral rotation directions of the two spiral rubber strips 7-2 on the double-axis stem pulling roller set 7 are opposite. The purpose is to make the spiral rubber strips 7-2 on the two stem pulling rollers 7-1 push the pineapple plants to move backward.

[0047] See also Figure 4-Figure 10 The chain seedling supporting device 6 includes two groups of chain seedling supporting components distributed in a V shape, and the two groups of chain seedling supporting components correspond to the two stem pulling rollers 7-1 one by one; each group of chain seedling supporting components includes a driving gear 6-1, a driven gear 6-2, a seedling supporting chain 6-3 meshed between the driving gear 6-1 and the driven gear 6-2, and a plurality of seedling supporting parts 6-4 arranged on the seedling supporting chain 6-3; the power transmission mechanism includes two groups of transmission components 10, and each group of transmission components 10 corresponds to each group of chain seedling supporting components one by one; one end of the transmission component 10 is connected to the front end of the stem pulling roller 7-1, and the other end is connected to the driving gear 6-1. By setting the above structure, when the driving mechanism 9 drives the two stem pulling rollers 7-1 to rotate, the rotating stem pulling rollers 7-1 drive the driving gear 6-1 to rotate under the action of the transmission component 10, and then drive the seedling supporting chain 6-3 to rotate. When picking pineapples, the high bed machine 2 moves forward, and the seedling support chain 6-3 will lift up the fallen pineapple plants and push them to the middle of the two stem pulling rollers 7-1; specifically, the pineapple plants that tilt to the left or right will be lifted up by the seedling support parts 6-4 of the seedling support chain 6-3, and continue to provide support on both sides to keep the pineapple plants upright; the pineapple plants that tilt forward and backward are also lifted up by the seedling support parts 6-4 of the seedling support chain 6-3, and under the push of the seedling support parts 6-4, the pineapple plants are kept upright and pushed to the front end of the V-shaped opening in the middle of the stem pulling roller 7-1, and the stem pulling roller 7-1 will pick the pineapple fruits. Since the two stem pulling rollers 7-1 rotate in opposite directions, the two seedling support chains 6-3 also rotate in opposite directions, both of which provide power to push the pineapple plants backward.

[0048] See also Figure 4-Figure 10 The driving mechanism 9 includes a reducer 9-1 arranged on the mounting frame 4 and a driver 9-2 arranged on the reducer 9-1. The driver 9-2 is connected to the input end of the reducer 9-1, and the output end of the reducer 9-1 is connected to the rear ends of the two stem pulling rollers 7-1. By setting the above structure, the stem pulling roller 7-1 can be driven. The reducer 9-1 is provided with a gear set to achieve speed reduction and drive of the two stem pulling rollers 7-1.

[0049] See also Figure 4-Figure 10 The driver 9-2 is one of a servo motor, a stepper motor, a permanent magnet motor, a hydraulic motor, a pneumatic motor, etc.

[0050] See also Fig.10The transmission assembly 10 is a worm gear mechanism, the worm of which is connected to the front end of the stem pulling roller 7-1, and the worm of which is coaxially arranged with the driving gear 6-1. The worm gear mechanism can realize power transmission, and the rotation of the stem pulling roller 7-1 and the seedling supporting chain 6-3 can be realized through a power source of the driver 9-2, making the structure simpler and more compact, and at the same time, saving resources.

[0051] See also Figure 1-Figure 3 Two support rods 11 are provided between the harvesting mechanism 1 and the high bed working machine 2. The two support rods 11 are distributed on both sides of the harvesting mechanism 1. One end of the support rod 11 is hinged to the frame 12 of the high bed working machine 2, and the other end is hinged to the mounting frame 4. By providing the support rods 11 and combining the lifting device 3, the installation stability of the harvesting mechanism 1 is further guaranteed.

[0052] See also Figure 1-Figure 3 The lifting device 3 includes three lifting hydraulic rods 3-1 arranged between the frame 12 and the mounting frame 4. The three lifting hydraulic rods 3-1 are distributed in a triangular shape. The upper end of the lifting hydraulic rod 3-1 is hinged to the frame 12, and the lower end is hinged to the mounting frame 4. Through the telescopic movement of the lifting hydraulic rod 3-1, the height of the harvesting mechanism 1 from the ground and the inclination angle with the ground can be adjusted to reach a height and angle suitable for harvesting pineapple fruits, avoiding collision with ground obstacles and damaging pineapple fruits.

[0053] See also Figure 4-Figure 8 The mounting frame 4 is connected by two pieces of structural steel to form a T-shaped structure. Harvesting support frames 13 are respectively arranged on both sides of the mounting frame 4, and the two rows of harvesting modules 5 are respectively installed on the two harvesting support frames 13; the front end of the harvesting support frame 13 is provided with two L-shaped plates 14, and the two L-shaped plates 14 correspond to the two groups of chain-type seedling supporting components one by one, and the transmission component 10 is installed on the L-shaped plate 14; the front end of each L-shaped plate 14 is provided with a guide mounting plate 15, and the two guide mounting plates 15 are distributed in a V shape; the driven gear 6-2 is installed on the guide mounting plate 15. By setting the above structure, the two guide mounting plates 15 can not only install the chain-type seedling supporting components, but also play a guiding role for the pineapple plants. In addition, by setting the harvesting support frame 13 and the L-shaped plate 14, the installation of each component can be facilitated, and the structure is very compact.

[0054] See also Figure 4-Figure 8 The fruit blocking plate 8 is installed on the harvesting support frame 13.

[0055] See also Figure 1-Figure 3The frame 12 is also provided with two support wheels 16, which are located at the front end of the harvesting mechanism 1. By providing the support wheels 16, the walking stability of the high bed working machine 2 can be ensured, and the stability of harvesting can be ensured.

[0056] See also Figure 1-Figure 3 The high bed working machine 2 is provided with a collecting frame 17 for collecting pineapple fruits, and a lifting and conveying device 18 is provided between the collecting frame 17 and the conveying mechanism 19. The pineapple fruits conveyed by the conveying mechanism 19 are conveyed to the lifting and conveying device 18, and the lifting and conveying device 18 conveys the pineapple fruits to the collecting frame 17. The conveying mechanism 19 is a conveyor belt.

[0057] See also Figure 1-Figure 15 The pineapple harvesting device of this embodiment drives the two stem pulling rollers 7-1 and the two seedling supporting chains 6-3 to rotate simultaneously through the driving mechanism 9; during the forward movement of the high bed working machine 2, the seedling supporting chain 6-3 will lift up the fallen pineapple plants and push the pineapple plants to the middle of the two stem pulling rollers 7-1; specifically, the pineapple plants that tilt to the left or right will be lifted up by the seedling supporting parts 6-4 of the seedling supporting chain 6-3, and continue to provide support on both sides to keep the pineapple plants upright; the pineapple plants that tilt forward or backward are also lifted up by the seedling supporting parts 6-4 of the seedling supporting chain 6-3, and under the push of the seedling supporting parts 6-4, the pineapple plants are kept upright and pushed to the front end of the V-shaped opening in the middle of the stem pulling roller 7-1. After the pineapple plants are pushed to the middle of the two stem pulling rollers 7-1, the two stem pulling rollers 7-1 rotate relative to each other, and cooperate with the screw at the front end of the stem pulling roller 7-1. The spiral rubber strip 7-2 provides the pineapple plant with the thrust and friction force to continue to move toward the rear end of the stem pulling roller 7-1, allowing the pineapple plant to enter the rear end of the V-shaped opening between the two stem pulling rollers 7-1. At this time, the stem pulling plate 7-3 at the rear end of the stem pulling roller 7-1 will be intermittently engaged during rotation, and the stem of the pineapple plant will be bitten from top to bottom by the stem pulling plates 7-3 of the two stem pulling rollers 7-1, and the stem of the pineapple plant will be squeezed and pulled, and the pineapple fruit will be stuck between the two stem pulling rollers 7-1. The pressure and tension provided by the steel plates at the rear end of the two stem pulling rollers 7-1, the supporting force provided by the stem pulling rollers 7-1 and the pulling force of the pineapple plant will jointly break the pineapple stem and separate the pineapple fruit from the plant. The separated pineapple fruit can gather to the middle under the action of the fruit blocking plates 8 on both sides and fall onto the conveyor belt for easy transportation.

[0058] Two rows of harvesting modules 5 are distributed on both sides of the high bed operation machine 2, and the high bed operation machine 2 will not damage the pineapple plants when moving forward.

[0059] Example 2

[0060] The other structures in this embodiment are the same as those in Embodiment 1, except that the two rows of harvesting modules 5 can be symmetrically arranged.

[0061] Example 3

[0062] See also Fig.17 The other structures in this embodiment are the same as those in Example 1, except that the rotation direction of the spiral rubber strips 7-2 of the two stem pulling rollers 7-1 in this embodiment is opposite to that of the spiral rubber strips 7-2 of the two stem pulling rollers 7-1 in Example 1. The stems of the pineapple plants in this embodiment will be bitten from bottom to top by the stem pulling plates 7-3 of the two stem pulling rollers 7-1, thereby separating the pineapple fruits from the pineapple plants, wherein the directions of the arrows correspond to the rotation directions of the stem pulling rollers 7-1 and the seedling supporting chain 6-3 respectively.

[0063] 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 pineapple harvesting device with a double-row chain-type seedling support and a double-axis stem pulling roller group, characterized in that: It includes a harvesting mechanism, which is installed on the high-bed working machine through a lifting device; the harvesting mechanism includes a mounting frame, two rows of harvesting modules arranged on the mounting frame, and a conveying mechanism arranged between the two rows of harvesting modules for conveying the harvested pineapple fruits to the high-bed working machine; wherein, Each row of the harvesting modules includes a chain-type seedling supporter for straightening pineapple fruits in different postures, a double-axis stem-pulling roller group for separating pineapple fruits from plants, a fruit-blocking plate arranged outside the double-axis stem-pulling roller group, and a driving mechanism for driving the double-axis stem-pulling roller group to move; wherein a power transmission mechanism for transmitting power of the double-axis stem-pulling roller group to the chain-type seedling supporter is arranged between the double-axis stem-pulling roller group and the chain-type seedling supporter; The double-axis stem pulling roller group includes two stem pulling rollers rotatably arranged on a mounting frame, the two stem pulling rollers are arranged in a V-shape, and the space between the two stem pulling rollers forms a V-shaped opening; the driving mechanism is connected to the rear ends of the two stem pulling rollers, and the two stem pulling rollers rotate in opposite directions; The front end of the stem pulling roller is provided with a spiral rubber strip, and the rear end is provided with a plurality of stem pulling plates, and the plurality of stem pulling plates are evenly distributed along the circumferential direction; The chain seedling supporting device comprises two groups of chain seedling supporting components distributed in a V shape, and the two groups of chain seedling supporting components correspond to the two stem pulling rollers one by one; each group of chain seedling supporting components comprises a driving gear, a driven gear, a seedling supporting chain meshed between the driving gear and the driven gear, and a plurality of seedling supporting parts arranged on the seedling supporting chain, which are arranged on a mounting frame; the power transmission mechanism comprises two groups of transmission components, and each group of transmission components corresponds to each group of chain seedling supporting components one by one; one end of the transmission component is connected to the front end of the stem pulling roller, and the other end is connected to the driving gear; The mounting frame is connected by two pieces of structural steel to form a T-shaped structure, and harvesting support frames are respectively provided on both sides of the mounting frame, and the two rows of harvesting modules are respectively installed on the two harvesting support frames; two L-shaped plates are provided at the front end of the harvesting support frame, and the two L-shaped plates correspond one by one to the two groups of chain seedling supporting assemblies, and the transmission assembly is installed on the L-shaped plate; a guide mounting plate is provided at the front end of each L-shaped plate, and the two guide mounting plates are distributed in a V shape; the driven gear is installed on the guide mounting plate.

2. A pineapple harvesting device with a double-row chain-type seedling support and a double-axis stem pulling roller group according to claim 1, characterized in that: The driving mechanism comprises a reducer arranged on a mounting frame and a driver arranged on the reducer, wherein the driver is connected to an input end of the reducer, and an output end of the reducer is connected to the rear ends of the two stem pulling rollers.

3. A pineapple harvesting device with a double-row chain-type seedling support and a double-axis stem pulling roller group according to claim 1, characterized in that: The transmission assembly is a worm gear mechanism, the worm of the worm gear mechanism is connected to the front end of the stem pulling roller, and the worm wheel of the worm gear mechanism is coaxially arranged with the driving gear.

4. A pineapple harvesting device with a double-row chain-type seedling support and a double-axis stem pulling roller group according to claim 1, characterized in that: Two support rods are provided between the harvesting mechanism and the high bed working machine. The two support rods are distributed on both sides of the harvesting mechanism. One end of the support rod is hinged to the frame of the high bed working machine, and the other end is hinged to the mounting frame.

5. A pineapple harvesting device with a double-row chain-type seedling support and a double-axis stem pulling roller group according to claim 4, characterized in that: The lifting device comprises three lifting hydraulic rods arranged between the frame and the mounting frame. The three lifting hydraulic rods are distributed in a triangle. The upper ends of the lifting hydraulic rods are hinged to the frame, and the lower ends are hinged to the mounting frame.

6. A pineapple harvesting device with a double-row chain-type seedling support and a double-axis stem pulling roller group according to claim 4, characterized in that: The frame is also provided with two supporting wheels, and the two supporting wheels are located at the front end of the harvesting mechanism.

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