Banana stem cutting point positioning device for banana mechanical harvesting comb-falling link

Abstract

The invention relates to the technical field of banana comb falling equipment, and discloses a banana stem cutting point positioning device for a mechanical banana harvesting comb falling link, which comprises a chassis fixed on a comb falling device, a supporting seat arranged in the middle of the chassis, a vertical shaft rod rotationally connected to the supporting seat, and a cross beam fixedly connected to the top of the shaft rod, the cross beam comprises a long-strip-shaped transverse plate and vertical plates perpendicularly and fixedly connected with the two ends of the transverse plate, a sliding frame extending in the length direction of the transverse plate is arranged between the two vertical plates, a sliding base used for installing a cutter is connected to the sliding frame in a sliding mode, a lead screw support is fixedly connected to the transverse plate, a lead screw is rotationally connected to the lead screw support, the lead screw is in threaded connection with a lead screw nut, and the lead screw nut is fixedly connected with the sliding base. The lead screw is in driving connection with the lead screw rotating mechanism, and a driving mechanism for driving the cross beam to rotate is arranged on the chassis. According to the device, the cutter in the banana harvesting and comb-falling device can be accurately positioned to a banana stem cutting point, the self-adaptive adjustment capability is high, and the automation degree is high.

Description

Technical Field

[0001] The invention belongs to the technical field of banana combing equipment, and in particular relates to a banana stalk cutting point positioning device used in the mechanized banana harvesting and combing process. Background Art

[0002] Bananas are a major cash crop in tropical and subtropical regions of southern my country. Currently, banana harvesting and combing still rely heavily on manual labor, resulting in high labor intensity, low efficiency, and a high rate of fruit damage. The repetitive and tedious work of cutting banana stalks also negatively impacts farmers' health.

[0003] With the development of science and technology, some mechanized harvesting and combing devices have been developed, but the positioning of banana stalks during harvesting and combing still relies on passive positioning of tools and manual assisted positioning.

[0004] The above positioning mode not only has large subjective differences due to different workers, but the actual positioning point finally obtained does not completely match the theoretical banana stem cutting point, resulting in positioning errors and unsatisfactory positioning effects. As a result, the banana combs obtained by mechanical tool cutting have problems such as low combing success rate, poor incision quality, and poor adaptive contouring performance of the tool on the banana stem. The tool may even cut into the banana stem, severing the banana combs and cutting the fruit. This will cause the mechanical harvesting and combing equipment to be forced to stop operating, the banana fruit to be damaged, and the banana harvesting operation to be hindered or even interrupted, resulting in fruit damage and waste, seriously affecting the economic benefits of banana farmers. Summary of the Invention

[0005] The purpose of the present invention is to provide a banana stalk cutting point positioning device for use in the mechanized banana harvesting and combing process. The device can accurately position the cutter in the banana harvesting and combing device to the banana stalk cutting point. The device has a compact structure, strong adaptive adjustment capability, small size, easy installation, and a high degree of automation.

[0006] The above-mentioned purpose of the invention is achieved through the following technical solutions:

[0007] A banana stalk cutting point positioning device for the mechanized banana harvesting and combing link comprises a chassis fixed on the combing device, a support seat is provided in the middle of the chassis, a vertical shaft is rotatably connected to the support seat, the top of the shaft is fixedly connected to a crossbeam, the crossbeam comprises a long cross plate and vertical plates vertically fixedly connected at both ends of the cross plate, a slide extending along the length direction of the cross plate is provided between the two vertical plates, a slide for installing a tool is slidably connected to the slide, a screw support is fixedly connected to the cross plate, a screw is rotatably connected to the screw support, the screw is threaded with a screw nut, the screw nut is fixedly connected to the slide, the screw is drivingly connected to a screw rotation mechanism, and a driving mechanism for driving the crossbeam to rotate is provided on the chassis.

[0008] The above-mentioned banana stem cutting point positioning device for the mechanized banana harvesting and combing process, wherein the driving mechanism includes a rotating motor fixedly connected to the chassis, the output shaft of the rotating motor fixedly connected to the main gear, and the shaft is clamped with a slave gear engaged with the main gear.

[0009] The above-mentioned banana stem cutting point positioning device for the mechanized banana harvesting and combing process, wherein the screw rotating mechanism includes a driving member and a gear set, and the driving member is connected to the screw through the gear set to drive the screw to rotate.

[0010] The above-mentioned banana stalk cutting point positioning device for the mechanized banana harvesting and combing link, wherein the driving member is a driving motor fixed to the chassis, and the gear group includes a first gear, a second gear, a third gear, a fourth gear, a first bevel gear and a second bevel gear. The first gear is fixedly connected to the output shaft of the driving motor, the second gear is rotatably connected to the shaft and meshes with the first gear, the third gear is coaxially fixed to the second gear, a rotating shaft is passed through the horizontal plate and is rotatably connected to the horizontal plate, the fourth gear is fixedly connected to the rotating shaft below the horizontal plate and meshes with the third gear, the first bevel gear is fixedly connected to the rotating shaft above the horizontal plate, and the second bevel gear is fixedly connected to one end of the lead screw and meshes with the first bevel gear.

[0011] In the above-mentioned banana stalk cutting point positioning device used in the mechanized banana harvesting and combing process, the diameter of the third gear is larger than the diameter of the second gear.

[0012] The above-mentioned banana stalk cutting point positioning device for the mechanized banana harvesting and combing link, wherein the slide includes two slide bars extending along the length direction of the horizontal plate, the two ends of the slide bars are respectively fixedly connected to the two ends of the vertical plate, and the slide seat is slidably arranged on the two slide bars.

[0013] The above-mentioned banana stalk cutting point positioning device used in the mechanized banana harvesting and combing process, wherein the chassis is provided with a circular chassis scale with the shaft as the center, and the cross plate is provided with a crossbeam scale along the length direction.

[0014] The above-mentioned banana stalk cutting point positioning device for the mechanized banana harvesting and combing process, wherein the slide is provided with a beam pointer corresponding to the beam scale, and one end of the beam is provided with a chassis pointer corresponding to the chassis scale.

[0015] The above-mentioned banana stalk cutting point positioning device used in the mechanized banana harvesting and combing process, wherein the base plate is disc-shaped.

[0016] In summary, the beneficial technical effects of the present invention are:

[0017] 1. The present invention uses a screw-rotating mechanism to adjust the relative position between the cutter on the slide and the cutting point on the banana stem. This solves problems in conventional banana harvesting and combing devices, such as poor cutter positioning of the cutter on the banana stem, variable and difficult-to-quantify spacing, heavy reliance on workers, and poor adaptive adjustment performance. The present invention features precise cutter positioning on the slide, a compact structure, a modular design, and a compact size, making it ideally suited for integration into existing mechanical harvesting and combing devices. It offers easy installation and excellent flexibility.

[0018] 2. The drive mechanism of the present invention can control the rotation of the crossbeam to realize the positioning of the cutting points of the banana handles of all banana combs on a bunch of bananas. It can continuously locate all bananas on a bunch of bananas. The rotation angle of the crossbeam can be accurately determined by the chassis pointer and the chassis scale on the chassis, thereby improving the positioning efficiency of the banana handle cutting points. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is the front view of the present invention.

[0021] As shown in the figure, 1. chassis; 11. support seat; 12. shaft; 2. crossbeam; 21. horizontal plate; 22. vertical plate; 23. chassis pointer; 3. slide; 4. slide; 41. crossbeam pointer; 5. screw support; 6. screw; 7. screw nut; 8. screw rotation mechanism; 81. driving member; 82. gear set; 821. first gear; 822. second gear; 823. third gear; 824. fourth gear; 825. first bevel gear; 826. second bevel gear; 9. driving mechanism; 91. rotating motor; 92. main gear; 93. slave gear. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-2 The present invention is described in further detail.

[0023] like Figure 1 、 2 As shown, a banana stem cutting point positioning device for the mechanized banana harvesting and combing process includes a chassis 1 fixed to the combing device. The device can be modularly installed on the existing banana harvesting and combing device. The device can be used to locate the end effector of the banana stem cutting point.

[0024] A vertical support seat 11 is provided in the middle of the chassis 1, and a vertical shaft 12 is rotatably connected to the support seat 11. The top of the shaft 12 is fixedly connected to the crossbeam 2. The crossbeam 2 includes a long horizontal plate 21 and vertical plates 22 fixedly connected at both ends of the horizontal plate 21. The horizontal plate 21 is arranged horizontally. A slide 3 extending along the length direction of the horizontal plate 21 is provided between the two vertical plates 22. The slide 3 is slidably connected to a slide seat 4 for installing a tool (for cutting banana handles). The horizontal plate 21 is fixedly connected to a screw support 5. The screw support 5 is fixedly connected to the screw support 5. The horizontal lead screw 6 is rotatably connected and extends along the length direction of the cross plate 21. The lead screw 6 is screwed to the lead screw nut 7, and the lead screw nut 7 is fixedly connected to the bottom of the slide 4. The lead screw 6 is driven by the lead screw rotating mechanism 8. The lead screw rotating mechanism 8 drives the lead screw 6 to rotate, thereby driving the slide 4 to slide on the slide 3 to achieve linear motion. The top of the slide 4 can be equipped with a banana harvesting combing tool to perform the function of cutting the banana stalks. The chassis 1 is provided with a driving mechanism 9 for driving the cross beam 2 to rotate.

[0025] The driving mechanism 9 of this embodiment includes a rotary motor 91 fixedly connected to the chassis 1 , the output shaft of the rotary motor 91 is vertically upward and fixedly connected to the main gear 92 , and a slave gear 93 meshing with the main gear 92 is fixed on the shaft 12 .

[0026] When the rotary motor 91 is working, the main gear 92 on the rotary motor 91 synchronously drives the slave gear 93 to rotate, and the slave gear 93 drives the shaft 12 to rotate. The shaft 12 finally drives the crossbeam 2 to rotate, that is, drives the tool for cutting the banana stalks on the slide 4 to rotate. The tool rotates to the specified position where the banana stalk cutting point is located. Through the rotation of the tool, the corresponding banana stalk can be accurately positioned along the circumference of the banana stem on a bunch of bananas.

[0027] The lead screw rotating mechanism 8 includes a driving member 81 and a gear set 82 . The driving member 81 is connected to the lead screw 6 via the gear set 82 and is used to drive the lead screw 6 to rotate, thereby driving the slide 4 to slide on the slide 3 .

[0028] The driving member 81 of this embodiment is a driving motor fixed to the chassis 1, and the gear set 82 includes a first gear 821, a second gear 822, a third gear 823, a fourth gear 824, a first bevel gear 825 and a second bevel gear 826. The first gear 821 is fixedly connected to the output shaft of the driving motor, the second gear 822 is rotatably connected to the shaft 12 and meshes with the first gear 821, the third gear 823 is coaxially fixedly connected to the second gear 822, a vertical rotating shaft is passed through the horizontal plate 21 and is rotatably connected to the horizontal plate 21, the fourth gear 824 is fixedly connected to the rotating shaft below the horizontal plate 21 and meshes with the third gear 823, the first bevel gear 825 is fixedly connected to the rotating shaft above the horizontal plate, and the second bevel gear 826 is fixedly connected to one end of the lead screw 6 and meshes with the first bevel gear 825.

[0029] When the drive motor is working, the first gear 821 is engaged with the second gear 822, the third gear 823 is engaged with the fourth gear 824, and the first bevel gear 825 is engaged with the second bevel gear 826, thereby driving the rotation of the lead screw 6 and driving the lead screw nut 7 screwed thereto to move, ultimately realizing the linear movement of the slide 4 on the slide 3.

[0030] The lead screw rotating mechanism 8 drives the lead screw 6 to rotate so that the cutter on the slide 4 is located just below the corresponding banana handle, so as to achieve cutting of the corresponding banana handle.

[0031] The slide 3 of this embodiment includes two slide rods extending along the length direction of the horizontal plate 21 , two ends of the slide rods are respectively fixedly connected to two ends of the vertical plate 22 , and the slide seat 4 is slidably disposed on the two slide rods.

[0032] The chassis 1 is provided with a circular chassis scale with the shaft 12 as the center, and the cross plate 21 is provided with a crossbeam scale along the length direction.

[0033] A beam pointer 41 corresponding to the beam scale is provided on the slide 4; a chassis pointer 23 corresponding to the chassis 1 scale is provided at one end of the beam 2.

[0034] Setting the chassis scale and the crossbeam scale can accurately record the rotation angle of the crossbeam 2 and the linear movement distance of the slide 4. Multiple banana combs are distributed on the same banana bunch, and these banana combs grow along the axial and circumferential directions of the banana stem. When starting to cut the bottom banana, it is necessary to rotate the crossbeam 2 to the appropriate position, and then start the drive member 81 to drive the tool on the slide 4 to move radially along the slide 3, so as to move to the position where the banana stem cutting point is located.

[0035] In one embodiment, the diameter of the third gear 823 is larger than that of the second gear 822. By coaxially connecting the second gear 822 and the third gear 823 and making the diameter of the third gear 823 larger than that of the second gear 822, a reduction gear transmission of the drive motor can be achieved, thereby improving the accuracy and stability of the rotation of the lead screw 6.

[0036] The chassis 1 of this embodiment is circular.

[0037] The device operates as follows: The rotary motor 91 is activated, rotating the beam 2 to position it directly below the banana stem. Because multiple banana combs grow on the same bunch, all along the axial and circumferential direction of the banana stem, the beam 2 must be adjusted to the appropriate position when cutting the lowest banana. The driver 81 is then activated, causing the slide 4 to move radially via the screw 6, moving the cutter on the slide 4 to the cutting point of the banana stem.

[0038] Since the slide 4 is provided with a beam pointer 41 corresponding to the beam scale, and one end of the beam 2 is provided with a chassis pointer 23 corresponding to the chassis scale, the tool positioning process on the slide 4 can achieve precise positioning. It is only necessary to control the rotating motor 91 and the driving member 81. After the tool on the slide 4 moves to the specified position where the banana handle cutting point is located, the tool is controlled to perform corresponding actions to complete the banana handle cutting work.

[0039] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A banana stem cutting point positioning device for mechanized banana harvesting and combing, characterized in that: The cam is fixed to the chassis and is provided with a support seat in the middle of the chassis, the support seat is rotatably connected to the vertical shaft, the top of the shaft is fixedly connected to the crossbeam, the crossbeam includes a long cross plate and vertical plates vertically fixedly connected at both ends of the cross plate, a slide extending along the length direction of the cross plate is provided between the two vertical plates, the slide is slidably connected to a slide seat for installing a tool, the cross plate is fixedly connected to a screw support, the screw support is rotatably connected to a screw, the screw is threaded with a screw nut, the screw nut is fixedly connected to the slide, the screw is drive-connected to the screw rotation mechanism, and a driving mechanism for driving the crossbeam to rotate is provided on the chassis.

2. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 1 is characterized in that: The driving mechanism includes a rotating motor fixedly connected to the chassis, an output shaft of the rotating motor fixedly connected to a main gear, and a slave gear meshing with the main gear clamped on the shaft.

3. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 1 is characterized in that: The screw rotation mechanism includes a driving member and a gear set. The driving member is connected to the screw through the gear set to drive the screw to rotate.

4. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 3, characterized in that: The driving member is a driving motor fixed to the chassis, and the gear set includes a first gear, a second gear, a third gear, a fourth gear, a first bevel gear and a second bevel gear. The first gear is fixedly connected to the output shaft of the driving motor, the second gear is rotatably connected to the shaft and meshes with the first gear, the third gear is coaxially fixed to the second gear, a rotating shaft is passed through the horizontal plate and is rotatably connected to the horizontal plate, the fourth gear is fixedly connected to the rotating shaft below the horizontal plate and meshes with the third gear, the first bevel gear is fixedly connected to the rotating shaft above the horizontal plate, and the second bevel gear is fixedly connected to one end of the lead screw and meshes with the first bevel gear.

5. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 4 is characterized in that: The third gear diameter is greater than the second gear diameter.

6. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 1, characterized in that: The slide frame includes two slide bars extending along the length direction of the horizontal plate, two ends of the slide bars are respectively fixedly connected to two ends of the vertical plate, and the slide seat is slidably arranged on the two slide bars.

7. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 1, characterized in that: The chassis is provided with a circular chassis scale with the shaft as the center, and the cross plate is provided with a crossbeam scale along the length direction.

8. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 7, characterized in that: A beam pointer corresponding to the beam scale is provided on the slide seat, and a chassis pointer corresponding to the chassis scale is provided at one end of the beam.

9. The banana stem cutting point positioning device for mechanized banana harvesting and combing according to claim 1, characterized in that: The chassis is disc-shaped.

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