An air-suction type daylily harvesting device

Abstract

The present invention specifically relates to a pneumatic suction type daylily harvesting device, which solves the problems of low harvesting efficiency of daylilies and harm to harvesters during harvesting. A pneumatic suction type daylily harvesting device includes a collection box, a conveying pipe assembly and a pneumatic suction fan; a collection port communicating with the conveying pipe assembly and an air extraction port communicating with the pneumatic suction fan are arranged on the collection box; a swing arm assembly is arranged at the port of the conveying pipe assembly far from the collection box, and a control assembly is arranged beside the swing arm assembly, and the control assembly is used to control the opening and closing of the swing arm assembly. The conveying pipe assembly includes a conveying pipe with its head end communicating with the collection port of the collection box and an installation pipe sleeved at the end of the conveying pipe, and the swing arm assembly is rotatably connected to the end part of the installation pipe. The present invention realizes the non-destructive picking of daylilies, greatly improves the harvesting efficiency, improves the working environment of harvesters, reduces the labor intensity, and is applicable to the harvesting operation of daylilies with special harvesting requirements.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery, and specifically to a pneumatic suction type daylily harvesting device. Background Art

[0002] The harvesting time of daylilies has special requirements. If harvested after flowering, the yield will decrease, the quality will deteriorate, and the nutritional value will also decrease. If harvested too early, the flower buds are not well grown, with low weight, low quality and insufficient nutritional value. Therefore, the best harvesting time for daylilies is 2 hours before flowering, and the harvesting period is relatively concentrated. Due to the physiological characteristics of daylilies, the harvesting time is mostly in the early morning, the harvesting period is from June to August, and the harvesting season is rainy and the air is humid. The working time and working environment of manual harvesting are poor, which will affect the health of the harvesters and the harvesting efficiency. In addition, the harvesting period overlaps with the time for rush harvesting summer grains, and the shortage of labor resources engaged in daylily harvesting has increased the harvesting cost of daylilies. Moreover, fresh daylilies contain a large amount of colchicine, and long-term contact with the human body during harvesting operations will cause certain corrosion to the skin.

[0003] Due to the particularity of the daylily harvesting requirements, the current daylily harvesting work can only rely on manual labor, and there is still no mechanized and intelligent harvesting equipment. However, manual harvesting is heavy, with a large labor intensity and low efficiency, resulting in a significant increase in planting costs. With the continuous increase in the planting scale of daylilies, the problem of mechanized harvesting also needs to be solved urgently.

[0004] Based on this, in order to improve the daylily harvesting efficiency and reduce the harm to the harvesters, it is necessary to invent a pneumatic suction type daylily harvesting device, which can greatly reduce the contact between the harvesters and the daylilies during operation, realize the mechanized harvesting of daylilies, and is of great significance for improving the comprehensive mechanization level of daylily harvesting and promoting the development of the daylily industry. Summary of the Invention

[0005] The present invention provides a pneumatic suction type daylily harvesting device to solve the problems of low daylily harvesting efficiency and harm to the harvesters during harvesting.

[0006] The present invention is implemented by adopting the following technical solutions:

[0007] A pneumatic suction type daylily harvesting device includes a collection box, a conveying pipe assembly and a pneumatic suction fan; a collection port communicated with the conveying pipe assembly and an air extraction port communicated with the pneumatic suction fan are arranged on the collection box; a rocker arm assembly is arranged at the port of the conveying pipe assembly far away from the collection box, and a control assembly is arranged beside the rocker arm assembly, and the control assembly is used to control the opening and closing of the rocker arm assembly.

[0008] Further, the conveying pipe assembly includes a conveying pipe with its first end communicating with the collection port of the collection box, and a mounting pipe sleeved on the end of the conveying pipe. The rocker arm assembly is rotatably connected to the end of the mounting pipe.

[0009] Further, the rocker arm assembly includes two oppositely arranged rocker arms. Each rocker arm includes a reduced-diameter portion with its top end rotatably connected to the mounting pipe and a clamping portion fixed to the bottom end of the reduced-diameter portion. The two clamping portions can contact and fit together, and a lower conveying cavity penetrating up and down is jointly formed on their opposite surfaces. A conical upper conveying cavity is jointly formed on the opposite surfaces of the two reduced-diameter portions. The top end of the upper conveying cavity is connected to the conveying pipe, and the bottom end is connected to the lower conveying cavity. The control assembly includes an adjustment frame assembly, a swing frame assembly, and a driving device distributed in sequence from bottom to top. The driving device is used to drive the swing frame to swing up and down. The swing frame assembly is connected to the mounting pipe and is used to drive the adjustment frame assembly to move up and down. The opposite ends of the two reduced-diameter portions are rotatably connected to the adjustment frame assembly.

[0010] Further, the adjustment frame assembly includes an adjustment frame movably sleeved on the mounting pipe and two adjustment plates rotatably connected to the lower left side and the lower right side of the adjustment frame. The bottom ends of the two adjustment plates are respectively rotatably connected to the opposite ends of the two reduced-diameter portions.

[0011] Further, the swing frame assembly includes a swing frame movably sleeved on the mounting pipe. The swing frame is connected to the adjustment frame through two connecting plates distributed in parallel front and back. The upper end of the connecting plate is rotatably connected to the swing frame, and the lower end is rotatably connected to the adjustment frame. A longitudinally placed driving pin shaft is rotatably penetrated through the left part of the swing frame, and a longitudinally placed adjustment pin shaft is rotatably penetrated through the right part of the swing frame. The middle part of the driving pin shaft is fixedly connected to the telescopic part of the driving device. The adjustment pin shaft is connected to the mounting pipe through a position adjustment mechanism.

[0012] Further, the driving device is a cylinder. The base of the cylinder is fixedly connected to the mounting pipe through two mounting frames distributed up and down and fixedly sleeved on the mounting pipe. The position adjustment mechanism includes two rolling trough bodies fixedly connected to the lower mounting frame and with their notch parts arranged oppositely, and a sleeve rotatably sleeved on the middle part of the adjustment pin shaft and in rolling contact with the two rolling trough bodies.

[0013] Further, the collection box includes an upper box body and a lower box body detachably connected. The collection port is opened on the side box wall of the upper box body. The air extraction port is opened on the top box wall of the upper box body, and a baffle with a plurality of ventilation holes is arranged at the air extraction port.

[0014] Further, the upper box body and the lower box body are detachably connected through a plurality of circumferentially distributed buckles.

[0015] Further, the air suction fan is a vortex fan, and the air suction port of the air suction fan is communicated with the air extraction port of the collection box through an air suction pipe.

[0016] Further, the conveying pipe is a corrugated pipe, and the ends of the conveying pipe far from the collection box and the ends of the installation pipe far from the collection box are both in a flared shape.

[0017] The structure of the present invention is reasonably designed and reliable, realizing the non-destructive picking of daylilies. Moreover, during use, the harvesting personnel will not come into contact with the daylilies, avoiding the corrosion of the skin of the harvesting personnel by colchicine in the daylilies. At the same time, it can greatly improve the harvesting efficiency, improve the working environment of the harvesting personnel, reduce the labor intensity. Further, during the air suction type harvesting operation, it will not affect the quality of the daylilies; it is applicable to the harvesting operation of daylilies with special harvesting requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the structural schematic diagram of the present invention;

[0019] Figure 2 is the structural schematic diagram of the installation position of the control component and the rocker arm component in the present invention;

[0020] Figure 3 is Figure 2 the left view schematic diagram of

[0021] Figure 4 is Figure 2 the right view schematic diagram of

[0022] Figure 5 is the three-dimensional structural schematic diagram of the control component and the rocker arm component of the present invention when the position adjustment mechanism is not installed;

[0023] Figure 6 is the structural schematic diagram of the collection box in the present invention;

[0024] Figure 7 is the control process schematic diagram of the control component controlling the rocker arm component;

[0025] Figure 8 is the front view of the vortex fan in the present invention;

[0026] Figure 9 is Figure 8 the left view schematic diagram of

[0027] In the figure, 1 - air suction fan, 2 - conveying pipe, 3 - installation pipe, 4 - constriction part, 5 - clamping part, 6 - lower conveying cavity, 7 - upper conveying cavity, 8 - adjustment frame, 9 - adjustment plate, 10 - swing frame, 11 - connecting plate, 12 - driving pin shaft, 13 - adjustment pin shaft, 14 - cylinder, 15 - installation frame, 16 - rolling trough body, 17 - sleeve, 18 - upper box body, 19 - lower box body, 20 - baffle, 21 - buckle, 22 - air suction pipe, 23 - end cover, 24 - impeller, 25 - housing, 26 - belt pulley, 27 - air outlet, 28 - base, 29 - impeller, 30 - air inlet, 31 - tongue partition, 32 - exhaust port. Specific implementation mode

[0028] An air suction type daylily harvesting device, as shown in the attached Figure 1 ~attached Figure 5 figure, includes a collection box, a conveying pipe assembly and an air suction fan 1; a collection port communicated with the conveying pipe assembly and an air extraction port communicated with the air suction fan 1 are arranged on the collection box; a rocker arm assembly is arranged at the port of the conveying pipe assembly far away from the collection box, and a control assembly is arranged beside the rocker arm assembly, and the control assembly is used for controlling the opening and closing of the rocker arm assembly.

[0029] As shown in the attached Figure 1 、attached Figure 6 figure, the conveying pipe assembly includes a conveying pipe 2 with the first end communicated with the collection port of the collection box and an installation pipe 3 sleeved at the end of the conveying pipe 2, and the rocker arm assembly is rotatably connected to the end part of the installation pipe 3.

[0030] As shown in the attached Figure 2 ~attached Figure 5 figure, the rocker arm assembly includes two oppositely arranged rocker arms, each rocker arm includes a constriction part 4 with the top end rotatably connected to the installation pipe 3 and a clamping part 5 fixed to the bottom end of the constriction part 4, the two clamping parts 5 can contact and fit, and a vertically through lower conveying cavity 6 is jointly opened on the relative surfaces of the two; a conical upper conveying cavity 7 is jointly opened on the relative surfaces of the two constriction parts 4, the top end of the upper conveying cavity 7 is connected with the conveying pipe 2, and the bottom end is connected with the lower conveying cavity 6; the control assembly includes an adjustment frame assembly, a swing frame assembly and a driving device which are distributed in sequence from bottom to top; the driving device is used for driving the swing frame to swing up and down; the swing frame assembly is connected to the installation pipe 3, and the swing frame assembly is used for driving the adjustment frame assembly to move up and down; the opposite ends of the two constriction parts 4 are rotatably connected to the adjustment frame assembly.

[0031] As shown in the attached Figure 2 ~attached Figure 5 figure, the adjustment frame assembly includes an adjustment frame 8 movably sleeved on the installation pipe 3 and two adjustment plates 9 rotatably connected to the lower left side and the lower right side of the adjustment frame 8, and the bottom ends of the two adjustment plates 9 are respectively rotatably connected to the opposite ends of the two constriction parts 4.

[0032] As shown in the attached Figure 2 ~attached Figure 5 As shown, the swing frame assembly is movably sleeved on the swing frame 10 of the installation pipe 3. The swing frame 10 is connected to the adjustment frame 8 through two connecting plates 11 distributed in parallel front and back. The upper end of the connecting plate 11 is rotatably connected to the swing frame 10, and the lower end is rotatably connected to the adjustment frame 8. A longitudinally placed driving pin shaft 12 is rotatably penetrated through the left part of the swing frame 10, and a longitudinally placed adjustment pin shaft 13 is rotatably penetrated through the right part of the swing frame 10. The middle part of the driving pin shaft 12 is fixedly connected to the telescopic part of the driving device. The adjustment pin shaft 13 is connected to the installation pipe 3 through a position adjustment mechanism.

[0033] As shown in the attached Figure 2 ~attached Figure 5 As shown, the driving device is a cylinder 14. The base of the cylinder 14 is fixedly connected to the installation pipe 3 through two installation frames 15 distributed up and down and fixedly sleeved on the installation pipe 3. The position adjustment mechanism includes two rolling troughs 16 fixedly connected to the lower installation frame 15 and having their notch parts arranged oppositely, and a sleeve 17 rotatably sleeved on the middle part of the adjustment pin shaft 13 and rollingly contacting the two rolling troughs 16.

[0034] During installation, a cylinder connecting rod can be connected between the cylinder 14 and the driving pin shaft 12, and the cylinder connecting rod is fixedly connected to the cylinder 14 through bolts. The cylinder 14 is preferably a magnetic coupling rodless cylinder.

[0035] As shown in the attached Figure 1 and attached Figure 6 As shown, the collection box includes an upper box body 18 and a lower box body 19 which are detachably connected. The collection port is opened on the side box wall of the upper box body 18. The air extraction port is opened on the top box wall of the upper box body 18, and a baffle 20 with a plurality of ventilation holes is arranged at the air extraction port.

[0036] As shown in the attached Figure 6 As shown, the collection box is a key component for collecting and storing daylilies. The overall height of the collection box is 650 mm, the diameter is 200 mm, the length of the part connected to the air suction pipe 22 in the upper part is 50 mm, and the pipe orifice diameter is the same as the orifice diameter of the air suction pipe of the vortex blower. The inner diameter of the feed port and the outer diameter of the conveying pipe are both 26 mm. The collection port on the side of the collection box is connected to the conveying pipe 2, playing a role in the transition of conveying to the collection box. The air extraction port on the top of the collection box is connected to the air suction port of the air suction fan 1 through a corrugated pipe, generating sufficient negative pressure in the collection box. In order to reduce the pressure drop loss during the conveying of daylilies and increase the air suction wind pressure at the picking head, the conveying pipe assembly adopts a straight pipe form. However, due to the relatively long required length of the pipeline and to ensure the smoothness of the daylilies during conveying, the conveying pipelines are connected by right-angled circular elbow pipes.

[0037] The upper box body 18 and the lower box body 19 are detachably connected by a plurality of circumferentially distributed buckles 21.

[0038] The air suction fan 1 is a vortex fan, and the air suction port of the air suction fan 1 is communicated with the air extraction port of the collection box through an air suction pipe 22.

[0039] During use, the engine drives the vortex fan to work, generating negative pressure in the air suction pipe 22, the collection box, and the conveying pipe 2, so as to suck the daylilies harvested by the rocker arm assembly into the collection box, avoiding corrosion caused by long-term human contact with daylilies and greatly improving work efficiency.

[0040] As shown in the appendix Figure 8 and the appendix Figure 9 As shown, the air suction fan includes an end cover 23, an impeller 24, a housing 25, and a base 28. During operation, air is pumped from the outside into the impeller flow channel through the air inlet 30. As the impeller 24 rotates, the pumped gas and the gas in the flow channel will perform circular motion, resulting in the speed of the circular motion of the gas in the flow channel being smaller than that of the pumped gas, that is, the centrifugal force of the pumped gas increases, thus forming an annular flow of the impeller 24 towards the flow channel; through the high-speed rotation of the impeller 24, the gas enters the flow channel under the action of centrifugal force, the air flow impacts the casing, the air flow impacts the casing, flows towards the root of the blade, and re-enters the impeller flow channel from the back of the blade, circulating between two adjacent blades on the impeller 24 until it flows to the fan outlet. The air outlet 27 of the fan is located at the lower part of the housing 25 and is basically parallel to the rotating shaft of the fan; the partition tongue 31 separates the air inlet 30 and the air outlet 32. In addition, a silencing device is installed at the air outlet of the fan; a filter is also installed at the air inlet 30 to filter impurities in the air. Selecting a vortex fan with a larger air volume can complete air suction type conveying and clamping drive of the picking head. During use, the air suction pipe 22 can reduce the speed of the air suction port.

[0041] As shown in the appendix Figure 2 ~in the appendix Figure 5 As shown, the conveying pipe 2 is a corrugated pipe, and the ends of the conveying pipe 2 and the installation pipe 3 far away from the collection box are both in a reduced diameter shape.

[0042] Connect the collection box and the rocker arm assembly through the conveying pipe 2. While ensuring the completion of the picking action, the wind speed can be reduced so that the wind speed is suitable for the picking of daylilies.

[0043] During harvesting, place the air suction fan 1 and the collection box at the rear of the agricultural machinery and fix them properly. Then turn on the air suction fan 1. Identify and locate the daylilies through manual operation. The specific operation is that the harvesting personnel hold the installation pipe 3 to adjust the position of the rocker arm assembly (at this time, the lower parts of the two rocker arms are opened at a small angle) until the lower conveying cavity 6 is aligned with the harvesting part of the target daylily (such as the root of the daylily). Then the harvesting personnel press the button to start the cylinder 14. Under the action of air pressure, the telescopic part of the cylinder 14 extends downward, pushing the driving pin shaft 12 to move downward, causing the swing frame 10 to swing downward. Then, driven by the connecting plate 11, the adjusting frame 8 moves downward. The downward movement of the adjusting frame 8 drives the two rocker arms to rotate synchronously and towards each other around the fixed hinge point where they are connected to the installation pipe 3 until the two clamping parts 5 come into contact and fit together, clamping the root of the daylily to achieve the purpose of harvesting the daylily. The harvested daylilies, under the negative pressure provided by the air suction fan 1, sequentially pass through the lower conveying cavity 6, the upper conveying cavity 7, and the conveying pipe 2, and then enter the inner cavity of the collection box. After harvesting, the harvesting personnel release the button, and the cylinder 14 resets, pulling the driving pin shaft 12 to move upward, causing the swing frame 10 to swing upward. Then, driven by the connecting plate 11, the adjusting frame 8 moves upward. The upward movement of the adjusting frame 8 drives the two rocker arms to rotate synchronously and away from each other around the fixed hinge point where they are connected to the installation pipe 3, thereby resetting the two rocker arms. During use, the opening and closing of the rocker arm assembly are driven by the cylinder 14, and the rotation of the rocker arm assembly is achieved by adjusting the position of the conveying pipe 2 made of corrugated pipe, thereby realizing the non-destructive harvesting of daylilies.

[0044] During the process of the cylinder 14 driving the rocker arms to close, the right part of the swing frame 10 rotates at a small angle around the adjusting pin shaft 13, pushing the sleeve 17 to roll a short distance in the rolling groove body 16 to achieve the purpose of adjusting the position of the swing frame 10. At the same time, the middle part of the swing frame 10 rotates at a small angle around the connecting plate 11, and the connecting plate 11 is appropriately inclined to cooperate with the completion of the swinging action of the swing frame 10.

[0045] After the daylilies enter the collection box from the collection port, under the action of the airflow, they will move upward for a certain distance and then be blocked by the baffle 20. Then, after short-term disordered movement in the upper part of the upper box body 18, they fall to the bottom of the lower box body 19.

[0046] In the present invention, the schematic diagram of the control process of the control component controlling the rocker arm assembly is as shown in the appendix Figure 7 shown. In the figure, the connection point of the driving pin shaft 12 is at B, the connection point of the adjusting pin shaft 13 is at A, the connection point of the connecting plate 11 is at C, the movable hinge points between the two adjusting plates 9 and the adjusting frame 8 are at D and E respectively, the movable hinge points between the two adjusting plates 9 and the two rocker arms are at F and I respectively, the fixed hinge points between the two rocker arms and the installation pipe 3 are at G and H respectively, and the connection points between the two constriction parts 4 and the two clamping parts 5 are at J and K respectively. As shown in the appendix Figure 7As shown, under the action of the cylinder 14, the driving pin shaft 12 moves vertically downward, adjusting the pin shaft 13 to slide slightly in the left-right direction. The connecting plate 11 moves downward, pushing the adjusting plate 9 downward. Since the rocker arms FGJ and IHK are fixedly hinged to the mounting pipe 3 at G and H respectively, the downward movement of the adjusting plate 9 drives the rocker arms FGJ and IHK to rotate around G and H respectively, thereby realizing the closing of the two rocker arms. In the present invention, the maximum angle of rotation of the two rocker arms is as shown by α in the appendix Figure 7 as shown by α in the appendix, and α is 15°.

[0047] In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An air-suction type daylily harvesting device, characterized in that: It includes a collection box, a conveying pipe assembly and a suction fan (1); a collection port communicated with the conveying pipe assembly and an air extraction port communicated with the suction fan (1) are arranged on the collection box; a rocker arm assembly is arranged at the port of the conveying pipe assembly far from the collection box, and a control assembly is arranged beside the rocker arm assembly, and the control assembly is used to control the opening and closing of the rocker arm assembly; The conveying pipe assembly includes a conveying pipe (2) with the first end communicated with the collection port of the collection box and an installation pipe (3) sleeved at the end of the conveying pipe (2), and the rocker arm assembly is rotatably connected to the end of the installation pipe (3); The rocker arm assembly includes two oppositely arranged rocker arms, each rocker arm includes a necking part (4) with the top end rotatably connected to the installation pipe (3) and a clamping part (5) fixed to the bottom end of the necking part (4), the two clamping parts (5) can be in contact and fit, and a lower conveying cavity (6) penetrating up and down is jointly opened on the opposite surfaces of the two; a conical upper conveying cavity (7) is jointly opened on the opposite surfaces of the two necking parts (4), the top end of the upper conveying cavity (7) is connected to the conveying pipe (2), and the bottom end is connected to the lower conveying cavity (6); the control assembly includes an adjustment frame assembly, a swing frame assembly and a driving device distributed in sequence from bottom to top; the driving device is used to drive the swing frame to swing up and down; the swing frame assembly is connected to the installation pipe (3), and the swing frame assembly is used to drive the adjustment frame assembly to move up and down; the opposite ends of the two necking parts (4) are rotatably connected to the adjustment frame assembly; The adjustment frame assembly includes an adjustment frame (8) movably sleeved on the installation pipe (3) and two adjustment plates (9) rotatably connected to the lower left side and the lower right side of the adjustment frame (8), and the bottom ends of the two adjustment plates (9) are respectively rotatably connected to the opposite ends of the two necking parts (4); The swing frame assembly is an installation pipe (3) movably sleeved on the swing frame (10), the swing frame (10) is connected to the adjustment frame (8) through two connecting plates (11) distributed in parallel front and back, the upper end of the connecting plate (11) is rotatably connected to the swing frame (10), and the lower end is rotatably connected to the adjustment frame (8); a longitudinally placed driving pin shaft (12) is rotatably penetrated through the left part of the swing frame (10), and a longitudinally placed adjustment pin shaft (13) is rotatably penetrated through the right part of the swing frame (10), and the middle part of the driving pin shaft (12) is fixedly connected to the telescopic part of the driving device; the adjustment pin shaft (13) is connected to the installation pipe (3) through a position adjustment mechanism; The collection box includes an upper box body (18) and a lower box body (19) detachably connected; 2. The air-suction type daylily harvesting device according to claim 1, wherein: The driving device is a cylinder (14), and the base of the cylinder (14) is fixedly connected to the installation pipe (3) through two installation frames (15) distributed up and down and fixedly sleeved on the installation pipe (3); the position adjustment mechanism includes two rolling trough bodies (16) fixedly connected to the lower installation frame (15) and with the notch parts arranged oppositely and a sleeve (17) rotatably sleeved on the middle part of the adjustment pin shaft (13) and in rolling contact with the two rolling trough bodies (16).

3. The air-suction type daylily harvesting device according to claim 1, wherein: The collection port is opened on the side box wall of the upper box body (18); the air extraction port is opened on the top box wall of the upper box body (18), and a baffle plate (20) with a plurality of ventilation holes is arranged at the air extraction port.

4. The air-suction type daylily harvesting device according to claim 3, wherein: The upper box body (18) and the lower box body (19) are detachably connected by a plurality of circumferentially distributed buckles (21).

5. The air-suction type daylily harvesting device according to claim 1, wherein: The air suction fan (1) is a vortex fan, and the air suction port of the air suction fan (1) is communicated with the air extraction port of the collection box through an air suction pipe (22).

6. The air-suction type daylily harvesting device according to claim 1, wherein: The conveying pipe (2) is a corrugated pipe, and the ends of the conveying pipe (2) far away from the collection box and the ends of the installation pipe (3) far away from the collection box are both in a flared shape.

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