Ramulus mori leaf lossless shoot cutting device

Abstract

The utility model discloses a ramulus mori leaf lossless shoot cutting device which comprises a walking vehicle. The harvesting module comprises a rotating power structure provided with a rotating output shaft; the bottom gear box is detachably arranged on the walking vehicle and is provided with a main input shaft, a pair of first output shafts and a pair of second output shafts; the pair of cutting cutterheads are coaxially fixed with the pair of second output shafts respectively; the branch clamping gear boxes are provided with branch clamping input shafts and branch clamping output shafts, lower branch clamping rollers, front-end branch clamping belt wheels and upper branch clamping rollers are fixed to the branch clamping output shafts, and the lower branch clamping rollers and the upper branch clamping rollers are coaxially sleeved with soft rubber sleeves to form branch clamping gaps; the guide plates are arranged above the bottom gear box, the rear end of each guide plate is provided with a rear end branch clamping belt wheel axially parallel to the front end branch clamping belt wheel, and a branch clamping belt is arranged on the front end branch clamping belt wheels and the rear end branch clamping belt wheels in a tensioning mode to form a branch conveying channel. The work efficiency of the branch cutting machine is 3-5 times that of manual work, and branches can be efficiently cut and mulberry leaves can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, and more specifically, to a device for cutting mulberry branches without damaging leaves. Background Art

[0002] The cutting operation of mulberry strip farming is an indispensable part of mulberry planting and silkworm breeding. At present, it mainly relies on manual sickles to harvest mulberry strips. It takes farmers 3 to 4 hours to harvest one acre of mulberry field, and it takes a lot of time to pick up and return it. The time-consuming and labor-intensive cutting operation makes farmers miserable. There are also a small number of devices for harvesting mulberry branches, but due to the variety of terrains for growing mulberry strips, the existing devices for harvesting mulberry branches cannot fully adapt, and during the harvesting process, mulberry leaves, especially tender leaves, are often damaged, and engine oil, grease, etc. cause pollution to mulberry leaves, which makes the harvested mulberry leaves easy to deteriorate, and the polluted mulberry leaves cause diseases to silkworms. In order to change this farming method with high labor demand and low labor efficiency, as well as the damage to mulberry leaves during harvesting, this technical team independently developed a mulberry strip harvesting device suitable for multiple terrains and avoids damage to mulberry leaves. Utility Model Content

[0003] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0004] The utility model provides a device for non-destructive cutting of mulberry branch leaves, comprising:

[0005] Traveling vehicle;

[0006] The harvesting module includes:

[0007] A rotational power structure having a rotational output shaft for outputting rotational kinetic energy;

[0008] A bottom gearbox, which is detachably arranged on the traveling vehicle, wherein the bottom gearbox has, in order from the rear end to the front end of the traveling vehicle, a main input shaft, a pair of first output shafts vertically upward and symmetrically arranged, and a pair of second output shafts coaxial with the first output shafts and arranged downward, wherein the bottom gearbox is provided with a mulberry gap between the pair of first output shafts, wherein the rotating power structure is arranged on the bottom gearbox, and the rotating output shaft is coaxially fixed with the main input shaft;

[0009] A pair of cutting discs, the blade shafts of which are respectively fixed coaxially with a pair of second output shafts, and are located at the front end of the traveling vehicle and below the bottom gear box;

[0010] A pair of branch clamping gear boxes, wherein the pair of branch clamping gear boxes has a branch clamping input shaft coaxially fixed with the first output shaft and a branch clamping output shaft axially inclined, wherein the upper end of the branch clamping output shaft is inclined toward the front end of the traveling vehicle, and the lower branch clamping roller, the front branch clamping pulley, and the upper branch clamping roller are coaxially fixed on the branch clamping output shaft from bottom to top in sequence, and the outer side walls of the lower branch clamping roller and the upper branch clamping roller are coaxially sleeved with soft rubber sleeves, and a pair of soft rubber sleeves are gapped to form a branch clamping gap, and the branch clamping gap is located above and in front of the cutting position of the cutting blade disc;

[0011] A pair of guide plates, a pair of guide plates are arranged above the bottom gear box through a branch guide support, the front end of the guide plate is arranged close to the front end branch clamping pulley, and the rear end of the guide plate is provided with a rear end branch clamping pulley whose axial direction is parallel to the axial direction of the front end branch clamping pulley, the front end branch clamping pulley and the corresponding rear end branch clamping pulley are tensioned with a branch clamping belt, and a plurality of guide pulleys are axially parallel between the front end branch clamping pulley and the rear end branch clamping pulley, and the branch clamping belt is tensioned and sleeved on a plurality of guide pulleys at the same time, and the guide pulley is located on the side facing each other of a pair of front end branch clamping pulleys; wherein, a gap between a pair of branch clamping belts is provided to form a branch feeding channel.

[0012] Preferably, the bottom gearbox also has a pair of third output shafts that are vertically upward and symmetrically arranged;

[0013] Also included is a supporting structure, which includes:

[0014] A pair of right-angle gearboxes, the pair of right-angle gearboxes are respectively fixed to the front ends of the pair of clamping gearboxes through a pair of straw-supporting brackets, and the input shafts of the pair of right-angle gearboxes are respectively connected to the pair of third output shafts through a pair of flexible shafts;

[0015] A pair of rice-supporting support plates, the pair of rice-supporting support plates are respectively fixed to the front ends of a pair of rice-supporting brackets, a pair of rice-supporting pulleys are arranged on the rice-supporting support plates, the axle of one of the rice-supporting pulleys is coaxially fixed with the output shaft of the right-angle gearbox, a rubber toothed belt is tensioned on the pair of rice-supporting pulleys, wherein the lower end of the rice-supporting support plate is inclined toward the front end, and the long rubber teeth on the outer side of the rubber toothed belt extend out of the rice-supporting support plate;

[0016] A pair of branch gathering plates, one end of the inner side of the pair of branch gathering plates is respectively fixed on the outer side of a pair of grain supporting plates near the lower end thereof, and the other end of the outer side extends freely outward. The branch gathering plates are in an arc shape and one end of the outer side extends toward the rear end.

[0017] Preferably, it also includes a pair of anti-entanglement protection covers, which are suspended above a pair of upper branch clamping rollers through a pair of cover plate brackets, and the front end of the anti-entanglement protection cover extends close to the front end of the straw supporting plate, and the rear end of the anti-entanglement protection cover extends close to the guide plate.

[0018] Preferably, it also includes a bottom anti-entanglement plate, which is fixed above the bottom gear box through a lifting bracket and is located below the guide plate. The front end of the bottom anti-entanglement plate is arranged close to the front end clamping pulley, and the rear end of the bottom anti-entanglement plate is arranged in an axially horizontal cylindrical shape and is arranged close to the rear end clamping pulley.

[0019] Preferably, it further comprises a branch clamping automatic adjustment structure, wherein the rear end of a branch clamping gear box is coaxially rotatably connected to the first output shaft;

[0020] The automatic clamping adjustment structure comprises:

[0021] An I-shaped frame, the upper and lower ends of which are rotatably connected to the upper and lower parts of the corresponding clamping branch output shafts, respectively, and are located outside the clamping branch gear box;

[0022] A tensioning bracket, which is disposed on the bottom gear box and is located on the same side of the clamping gear box;

[0023] A plurality of tension springs, two ends of which are respectively and correspondingly fixed on the tension bracket and the I-shaped frame.

[0024] Preferably, the bottom gear box is provided with a first gear arranged axially vertically, a pair of second gears meshing with each other, a pair of third gears respectively meshing with the pair of second gears, a pair of fourth gears respectively meshing with the pair of third gears, and a pair of fifth gears respectively meshing with the pair of fourth gears, wherein the first gear is meshed with one of the second gears, the axle of the first gear forms the main input shaft, the axle of the fourth gear forms the third output shaft, the upper end axle of the fifth gear forms the first output shaft, and the lower end axle of the fifth gear forms the second output shaft.

[0025] Preferably, the clamping branch gear box is provided with a sixth gear coaxially fixed with the upper end of the fifth gear axle, a seventh gear meshing with the sixth gear, and an eighth gear meshing with the seventh gear, wherein the lower end of the sixth gear axle forms the clamping branch input shaft, and the clamping branch output shaft is coaxially fixed on the upper end of the eighth gear axle.

[0026] Preferably, the rotational power structure comprises:

[0027] A diesel engine is arranged on the bottom gearbox through a power support, and a driving pulley is coaxially arranged on the output shaft of the diesel engine;

[0028] A speed gearbox is arranged on the rear end of the bottom gearbox through a power bracket, a clutch is arranged on the speed gearbox, a pulley on the input shaft of the speed gearbox is a driven pulley, a main belt is tensioned between the driven pulley and the driving pulley, wherein the output shaft of the speed gearbox forms the rotating output shaft.

[0029] Preferably, the traveling vehicle is any one of a trolley, a crawler chassis or a wheeled chassis.

[0030] The utility model at least has the following beneficial effects:

[0031] First, start the rotating power structure, the upper clamping roller, the lower clamping roller, the front clamping pulley, the clamping belt, the rear clamping pulley and the cutting disc are operated in linkage at the same time. The mulberry branches are first clamped by the upper clamping roller and the lower clamping roller, and then fed to the cutting position of the cutting disc by the clamping belt. After the mulberry branches are cut, they are transported to the rear end by the clamping belt without loss. As the traveling vehicle moves forward, the mulberry branches on the ridges are harvested one by one, which can significantly improve the mulberry branch harvesting effect and reduce the damage to the branches and tender leaves at the same time.

[0032] Second, herbaceous mulberry usually reaches the harvesting standard height of about 1 meter. At this time, the branches and leaves are relatively tender and can be easily squeezed or scratched by external forces, which accelerates the loss of water in the leaves and shortens the storage time of the leaves. By setting a soft rubber sleeve, the mulberry branches are clamped by the soft rubber sleeve to achieve the effect of not damaging the branches and tender leaves. Specifically, the soft rubber sleeve can be made of soft rubber material or soft silicone material.

[0033] Third, due to the growth characteristics of mulberry branches, there are many branches, and some branches even grow close to the ground. In order to be able to harvest them all at once, it is necessary to straighten the small branches and branches growing close to the ground, and feed them backwards to the upper and lower clamping rollers to complete the mulberry branch harvesting. This application sets up a straw-supporting structure to pre-collect before harvesting. Under the transmission action of the right-angle gearbox, it drives the straw-supporting pulley and the rubber toothed belt to rotate. The opposite sides of a pair of rubber toothed belts move from the front end to the rear end, and from the lower end to the upper end at the same time. The long rubber teeth hook up the mulberry branches growing close to the ground, and feed the mulberry branches to the upper clamping roller, lower clamping roller, and front clamping pulley at the rear end; the long rubber teeth are also flexible and will not damage the branches and tender leaves.

[0034] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A simple schematic diagram of the cutting device from a side view according to one of the technical solutions of the utility model;

[0036] Figure 2 A simple schematic diagram of the cutting device from the rear top view according to one of the technical solutions of the utility model;

[0037] Figure 3 This is a schematic diagram of the structure of the harvesting module from a rear-end perspective according to one of the technical solutions of the utility model;

[0038] Figure 4 This is a side structural diagram of the harvesting module according to one of the technical solutions of the utility model;

[0039] Figure 5 This is a schematic diagram of the top view of the anti-entanglement protective cover according to one of the technical solutions of the utility model;

[0040] Figure 6 A schematic diagram of the side structure of the automatic clamping adjustment structure of one of the technical solutions of the utility model;

[0041] Figure 7 This is a transmission diagram of the harvesting module according to one of the technical solutions of the utility model;

[0042] Figure 8 A horizontal cross-sectional view of the bottom gear box according to one of the technical solutions of the utility model;

[0043] Fig. 9 A top view of the speed change gearbox according to one of the technical solutions of the utility model;

[0044] Fig.10 This is a schematic diagram of the position distribution of the guide pulley in one of the technical solutions of the utility model;

[0045] Fig.11 This is a schematic diagram of the structure of the adjustable position of the rear clamping pulley in one of the technical solutions of the utility model;

[0046] Fig.12 This is a schematic diagram of the connection structure between the cylinder support and the bottom gear box according to one of the technical solutions of the utility model;

[0047] Fig.13 A detailed view of the skateboard according to one of the technical solutions of the utility model;

[0048] Fig.14 This is a physical photo of the harvesting module according to one of the technical solutions of the utility model.

[0049] The meanings of the accompanying symbols in the specification are as follows: walking vehicle 1, harvesting module 2, rotating power structure 100, safety protection cover 11, bottom gear box 12, main input shaft 13, first output shaft 14, second output shaft 15, mulberry notch 16, cutting blade 17, branch clamping gear box 18, branch clamping input shaft 19, branch clamping output shaft 20, lower branch clamping roller 21, front branch clamping pulley 22, upper branch clamping roller 23, soft rubber sleeve 24, guide plate 25, rear end branch clamping pulley 26, branch clamping belt 27, third output shaft 28, rice grain supporting structure 200, right angle gearbox 29, soft shaft 30, rice grain supporting plate 31, rice grain supporting pulley 32, rubber tooth belt 33, rubber long teeth 34, branch gathering plate 35, anti-entanglement protection cover 3 6. Bottom anti-entanglement plate 37, automatic clamping structure 300, I-shaped frame 38, tensioning bracket 39, tensioning spring 40, first gear 41, second gear 42, third gear 43, fourth gear 44, fifth gear 45, sixth gear 46, seventh gear 47, eighth gear 48, diesel engine 49, driving pulley 50, speed change gear box 51, clutch 52, driven pulley 53, main belt 54, guide pulley 55, upper support plate 56, support rod 57, lower support plate 58, abutment plate 59, support plate 60, threaded cylinder 61, threaded rod 62, cylinder support 63, slide rail 64, mounting plate 65, fixing plate 66, slide plate 67, protruding plate 68, walking wheel 69. DETAILED DESCRIPTION

[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0051] It should be noted that the experimental methods described in the following embodiments are conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified; in the description of the present invention, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0052] like Figures 1 to 14 As shown, the utility model provides a device for non-destructive cutting of mulberry branches, comprising:

[0053] Traveling vehicle 1; specifically, the traveling vehicle 1 can be selected as a trolley, or a crawler chassis or a wheeled chassis, etc.

[0054] The harvesting module 2 is detachably mounted on the traveling vehicle 1; in order to solve the problem that the machine is light and flexible for multiple terrains and easy to operate by one person, the rotating power structure 100, the bottom gear box 12, the cutting blade 17, the branch clamping gear box 18, the guide plate 25, etc. are integrated into a modular structure. The user can select the appropriate traveling structure (traveling vehicle 1) according to his own mulberry garden plot to assemble a mulberry branch leaf non-destructive cutting device.

[0055] The harvesting module 2 comprises:

[0056] The rotary power structure 100 has a rotary output shaft for outputting rotary kinetic energy; specifically, the rotary power structure can select a rechargeable battery as a power source to power the motor, and the output shaft of the motor is the rotary output shaft, or a diesel engine 49 can be selected, and the output shaft of the diesel engine 49 is the rotary output shaft. Specifically, a safety protection cover 11 is provided in the outer gap of the rotary output shaft to protect the user and prevent the user from being injured when the output shaft rotates.

[0057] The bottom gearbox 12 is detachably mounted on the traveling vehicle 1. The bottom gearbox has a main input shaft 13, a pair of first output shafts 14 vertically upward and symmetrically arranged, and a pair of second output shafts 15 coaxial with the first output shafts 14 and arranged downward in sequence from the rear end to the front end of the traveling vehicle 1. The bottom gearbox is provided with a mulberry notch 16 between the pair of first output shafts, wherein the symmetry axes of the pair of first output shafts and the pair of second output shafts 15 are parallel to the radial direction from the front end to the rear end. The rotational power structure is arranged on the bottom gearbox, and the rotational output shaft is coaxially fixed with the main input shaft 13. For the convenience of structural description, the traveling vehicle 1 is taken as the reference in this application, the front end of the traveling vehicle 1 is the front end, and the rear end is the rear end. The rotational kinetic energy provided by the rotational power structure is converted and transmitted by the bottom gearbox. According to actual needs, the transmission ratio of the bottom gearbox is set, so as to realize multiple rotational outputs of different speeds and directions. Specifically, the bottom gearbox can be detachably fixed to the traveling vehicle 1 by bolts and nuts.

[0058] A pair of cutting discs 17, the blade shafts of which correspond to a pair of second output shafts and are coaxially fixed, are located at the front end of the traveling vehicle 1 and below the bottom gear box; the second output shafts can drive the cutting discs to rotate in opposite directions, thereby cutting the mulberry branches. Specifically, the cutting discs can be selected with disc blades, and a pair of disc blades are arranged in parallel and bite, which can achieve fast cutting of the mulberry branches and smooth incisions in combination with the blade shaft rotation speed.

[0059] A pair of branch clamping gearboxes 18, a pair of branch clamping gearboxes having a branch clamping input shaft 19 coaxially fixed with the first output shaft and a branch clamping output shaft 20 axially inclined, wherein the upper end of the branch clamping output shaft 20 is inclined toward the front end of the traveling vehicle 1, and the lower branch clamping roller 21, the front branch clamping pulley 22, and the upper branch clamping roller 23 are coaxially fixed on the branch clamping output shaft from bottom to top, and the outer side walls of the lower branch clamping roller 21 and the upper branch clamping roller 23 are coaxially sleeved with soft rubber sleeves 24, and a pair of soft rubber sleeves 24 are spaced to form a branch clamping gap, and the branch clamping gap is located in front of and above the cutting position of the cutting blade disc; because the traveling vehicle moves forward at a certain speed during the mulberry branch harvesting operation, the branch clamping roller 21 is coaxially sleeved with a soft rubber sleeve 24 on the outer side walls of the lower branch clamping roller 21 and the upper branch clamping roller 23, and the ... branch The upper end of the output shaft is inclined toward the front end of the traveling vehicle, which is conducive to the upper clamping roller clamping the mulberry branch first, and feeding the mulberry branch backward along the rotation direction of the pair of upper clamping rollers, and the lower part of the clamped mulberry branch can quickly reach the mulberry notch 16, so as to reach the cutting position of the cutting blade. The lower clamping roller can also clamp some relatively short and small mulberry branches, which can achieve the technical effect of harvesting mulberry branches cleanly. The clamping belt 27 (with structural description in the latter paragraph) placed between the upper clamping roller and the lower clamping roller, non-destructively clamps the mulberry branch to reach the mulberry notch, so as to reach the cutting position of the cutting blade. Under the clamping action of the clamping belt 27, the mulberry branch can stand stably, which is conducive to the precise cutting of the cutting blade and a smoother incision. The herbaceous mulberry usually reaches the harvesting standard height of about 1 meter. At this time, the branches and leaves are relatively tender and easily squeezed or scratched by external forces, and the water in the leaves is accelerated to lose, which shortens the storage time of the leaves. By setting the soft rubber sleeve, the mulberry branch is clamped by the soft rubber sleeve, so as to achieve the effect of not damaging the branch and tender leaves. Specifically, the soft rubber sleeve can be made of soft rubber material or soft silicone material.

[0060] A pair of guide plates 25, a pair of guide plates are arranged above the bottom gear box through a branch guide support, the front end of the guide plate is arranged close to the front end branch clamping pulley 22, and the rear end of the guide plate is provided with a rear end branch clamping pulley 26 axially parallel to the axial direction of the front end branch clamping pulley, the front end branch clamping pulley and the corresponding rear end branch clamping pulley 26 are tensioned with a branch clamping belt, and a plurality of guide pulleys 55 are arranged axially parallel between the front end branch clamping pulley and the rear end branch clamping pulley, and the branch clamping belt is simultaneously tensioned and sleeved on a plurality of guide pulleys 55, and the guide pulleys are located on the opposite side of the pair of front end branch clamping pulleys; wherein, a pair of branch clamping belts are arranged to form a branch delivery channel. The mulberry branches cut by the cutting blade disc move to the rear end along the branch delivery channel without loss of connection under the action of the pair of branch clamping belts, and since the branch clamping belts are also flexible, they will not damage the branches and tender leaves. Arranging a guide pulley on the guide plate is beneficial to keeping the front branch clamping pulley and the rear end pulley parallel, not loose, and not derailing, and can always clamp the mulberry branches in the channel for conveying the mulberry branches.

[0061] In the above technical scheme, when harvesting mulberry branches, the traveling vehicle moves to align the upper clamping roller with the row ridge to be harvested, and the rotating power structure is started. The upper clamping roller, the lower clamping roller, the front clamping pulley, the clamping belt, the rear clamping pulley and the cutting disc are operated in linkage at the same time. The mulberry branches are first clamped by the upper clamping roller and the lower clamping roller, and then connected by the clamping belt between the upper clamping roller and the lower clamping roller and fed to the cutting position of the cutting disc. After the mulberry branches are cut, they are transported to the rear end by the clamping belt without loss. As the traveling vehicle moves forward, the mulberry branches on the row ridge are harvested one by one, which can significantly improve the mulberry branch harvesting effect and reduce damage to branches and tender leaves at the same time.

[0062] In another technical solution, the guide plate is arranged as a double plate with an upper and lower interval, and the middle space is used to fix the rear end clamping pulley, which can reduce the mulberry branches from being drawn into the clamping belt during transportation, thereby reducing damage to the branches and tender leaves.

[0063] In another technical solution, a plurality of guide pulleys on a pair of branch clamping belts are arranged at intervals and staggered to form a triangular wave shape, so that the pair of branch clamping belts form a tight and stable clamping force, which is conducive to the stable transportation of mulberry branches.

[0064] In another technical solution, the rear-end clamping pulley is set to an adjustable position structure. Specifically, the upper and lower ends of the rotating shaft of the rear-end clamping pulley are respectively rotatably set on the upper support plate 56 and the lower support plate 58. The front end of the upper support plate 56 is provided with a supporting rod 57, and the front end of the lower support plate 58 is provided with an abutment plate 59. The front end of the guide plate is provided with a supporting plate 60, and the supporting plate 60 is provided with a positioning hole. The supporting rod 57 is slidably clamped in the positioning hole. The lower surface of the guide plate is installed with a threaded cylinder 61 parallel to the mulberry branch conveying direction. A threaded rod 62 is screwed on the threaded cylinder 61, and the rear end of the threaded rod 62 abuts against the abutment plate 59. By rotating the threaded rod, the distance between the rear-end clamping pulley and the front-end pulley can be adjusted, thereby adjusting the tightness of the entire clamping belt.

[0065] In another technical solution, the bottom gearbox is further provided with a pair of third output shafts 28 which are vertically upward and symmetrically arranged; the symmetry axes of the pair of third output shafts 28 are parallel to the radial direction from the front end to the rear end, and the power source of the third output shafts is also a rotating power structure, so that the following supporting structure 200 can be simultaneously linked with the upper clamping roller, the lower clamping roller, the front clamping pulley, the clamping belt, the rear clamping pulley, and the cutting disc;

[0066] Also included is a supporting structure 200, which includes:

[0067] A pair of right angle gearboxes 29 are respectively fixed to the front ends of a pair of branch clamping gearboxes through a pair of straw support brackets, and the input shafts of the pair of right angle gearboxes are respectively connected to a pair of third output shafts through a pair of flexible shafts 30; by setting the flexible shafts 30, the rotation of the third output shaft can be stably transmitted to the right angle gearbox over a long distance. It occupies less space than other rotation transmission structures, which is conducive to reducing the volume and weight of the mulberry branch blade non-destructive cutting device as a whole.

[0068] A pair of rice-supporting support plates 31 are respectively fixed at the front end of a pair of rice-supporting brackets, and a pair of rice-supporting pulleys 32 are arranged on the rice-supporting support plates, wherein the axle of one of the rice-supporting pulleys 32 is coaxially fixed with the output shaft of the right-angle gearbox, and a rubber toothed belt 33 is tensioned on the pair of rice-supporting pulleys, wherein the lower end of the rice-supporting support plate is inclined toward the front end, and the long rubber teeth 34 on the outside of the rubber toothed belt 33 extend out of the rice-supporting support plate; due to the growth characteristics of the mulberry branches themselves, there are extremely many branches, and some branches even grow close to the ground. In order to be able to harvest them cleanly at one time, it is necessary to straighten the small branches and branches growing close to the ground, and feed them backwards into the upper branch clamping roller and the lower branch clamping roller to complete the mulberry branch harvesting. Therefore, a straw-supporting structure is provided to pre-collect the crops before harvesting. Under the transmission action of the right-angle gearbox, the straw-supporting pulley and the rubber toothed belt are driven to rotate. The opposite sides of a pair of rubber toothed belts move from the front end to the rear end and from the lower end to the upper end at the same time. The long rubber teeth 34 hook up the mulberry branches growing close to the ground and feed the branches to the upper branch clamping roller, the lower branch clamping roller and the front branch clamping pulley at the rear end. The long rubber teeth are also flexible and will not damage the branches and tender leaves.

[0069] A pair of branch gathering plates 35, one end of the inner side of the pair of branch gathering plates 35 is respectively fixed on the outer side of a pair of crop supporting plates near the lower end thereof, and the other end of the outer side freely extends outward, and the branch gathering plates are in a circular arc shape and one end of the outer side extends to the rear end. Since the mulberry branch row ridge has a certain width, by setting a pair of branch gathering plates, the mulberry branches on the entire row ridge can be gathered between the pair of rubber toothed belts, thereby significantly improving the mulberry branch harvesting effect.

[0070] In the above technical scheme, when harvesting mulberry branches, the traveling vehicle moves to align the upper clamping roller with the row to be harvested, and the rotating power structure is started. The rice supporting structure, the upper clamping roller, the lower clamping roller, the front clamping pulley, the clamping belt, the rear clamping pulley, and the cutting disc are operated in linkage at the same time. A pair of branch gathering plates gather the mulberry branches on the entire row between a pair of rubber toothed belts. At the same time, the long rubber teeth hook up the mulberry branches growing close to the ground, and feed the mulberry branches to the upper clamping roller, the lower clamping roller, and the front clamping pulley at the rear end. Then, the mulberry branches are clamped by the clamping belt and fed to the cutting position of the cutting disc. After the mulberry branches are cut, they are transported to the rear end by the clamping belt without loss, and the harvesting is completed.

[0071] In another technical solution, the support plate is arranged as a double plate with an upper and lower interval, and the middle space is used to fix a pair of support pulleys. This can reduce the damage to branches and tender leaves caused by the mulberry branches being caught between the support pulleys and the rubber toothed belt in the clamping belt during the process of feeding the branches to the rear end.

[0072] In another technical solution, a pair of anti-entanglement protective covers 36 are further included. The pair of anti-entanglement protective covers 36 are suspended above a pair of upper branch clamping rollers through a pair of cover plate brackets, and the front end of the anti-entanglement protective cover extends close to the front end of the straw support plate, and the rear end of the anti-entanglement protective cover extends close to the guide plate. Specifically, the shape of the anti-entanglement protective cover is set according to the size of the upper branch clamping roller and the lower branch clamping roller.

[0073] In the above technical solution, in order to prevent the mulberry branches from being scratched by the front-end branch clamping belt or entangled with other parts and losing leaves during movement, the above-mentioned anti-entanglement protective cover is provided to achieve the effect of not damaging the branches and tender leaves.

[0074] In another technical solution, a bottom anti-entanglement plate 37 is also included, which is fixed above the bottom gear box through a lifting bracket and is located below the guide plate. The front end of the bottom anti-entanglement plate 37 is arranged close to the front clamping pulley, and the rear end of the bottom anti-entanglement plate is arranged in an axially horizontal cylindrical shape and is arranged close to the rear clamping pulley. The cut mulberry branch is about 1m long. Therefore, when the mulberry branch is transported backward, the top of the mulberry branch is tilted backward. The rear end of the lifting plate is arranged in a cylindrical shape, which can form an arc-shaped upward convex slope, so that the top of the mulberry branch is higher than the cut part of the mulberry branch, that is, the top of the mulberry branch can be lifted upward, so that the clamping belt acts on the thicker part of the bottom of the mulberry branch as much as possible, which is conducive to the backward transportation of the mulberry branch and can also reduce the damage to the branches and leaves. And, it prevents the entanglement of branches and leaves, so that the mulberry branch can be smoothly transported backward.

[0075] In the above technical solution, since a rotating power structure and various fixed components are installed between the bottom gear box and the guide plate, many gaps and sharp edges are formed, which may damage the branches and tender leaves or the edges may hook the mulberry branches, causing the branch delivery channel to be blocked, which is not conducive to the backward transportation of the mulberry branches. Therefore, a bottom anti-entanglement plate is provided, which is located directly below the guide plate to lift the cut mulberry branches, reduce damage to the branches and tender leaves, and smoothly transport the mulberry branches backward.

[0076] In another technical solution, there is also a branch clamping automatic adjustment structure 300, wherein the rear end of a branch clamping gear box is coaxially connected to the first output shaft; specifically, a bearing is coaxially sleeved on the first output shaft, and the branch clamping gear box is provided with a bearing seat, and the outer wall of the bearing is coaxially fixed to the inner wall of the bearing seat, so that the branch clamping gear box and the first output shaft are coaxially connected. Thus, a branch clamping gear box can rotate relative to the first output shaft.

[0077] The branch clamping automatic adjustment structure 300 includes:

[0078] The upper and lower ends of the I-shaped frame 38 are rotatably connected to the upper and lower parts of the corresponding clamping branch output shaft respectively, and are located outside the clamping branch gearbox; the I-shaped frame 38 does not affect the rotation of the clamping branch output shaft.

[0079] A tensioning bracket 39, which is arranged on the bottom gear box and is located on the same side of the clamping gear box;

[0080] A plurality of tension springs 40, both ends of which are fixed to the tension bracket 39 and the I-shaped frame respectively. The pre-tensioning force of the tension spring is selected according to the actual needs.

[0081] In the above technical scheme, since the distribution density of mulberry branches is not absolutely uniform and varies greatly when harvesting mulberry branches on the ridges, when the distribution density of mulberry branches is too high and the mulberry branch feeding amount increases significantly, or when the distribution density of mulberry branches is too low and the mulberry branch feeding amount decreases significantly, the tensioning spring automatically adjusts the tension, so that the clamping gap between a pair of upper clamping rollers and a pair of lower clamping rollers increases or decreases, automatically matching the mulberry branch feeding amount, so that the mulberry branches can be clamped, transported and cut smoothly.

[0082] In another technical solution, the bottom gear box is provided with a first gear 41 arranged axially and vertically, a pair of second gears 42 meshing with each other, a pair of third gears 43 respectively meshing with the pair of second gears 42, a pair of fourth gears 44 respectively meshing with the pair of third gears 43, and a pair of fifth gears 45 respectively meshing with the pair of fourth gears 44, wherein the first gear 41 meshes with one of the second gears, the axle of the first gear forms the main input shaft, the axle of the fourth gear forms the third output shaft, the upper end axle of the fifth gear 45 forms the first output shaft, and the lower end axle of the fifth gear forms the second output shaft.

[0083] In the above technical solution, an intensive bottom gearbox is provided, which provides linkage operation power while significantly reducing the space occupied by the bottom gearbox, making the mulberry branch blade non-destructive cutting device more lightweight and flexible. From the front end, the rotating output shaft of the rotating power structure drives the first gear to rotate, which in turn drives a pair of second gears to rotate in opposite directions, a pair of third gears to rotate in opposite directions, a pair of fourth gears to rotate in opposite directions, and a pair of fifth gears to rotate in opposite directions, thereby driving a pair of rubber toothed belts to hook branches and support crops, a pair of upper clamping rollers, a lower clamping roller, and a front clamping belt pulley to clamp branches and feed branches, and a pair of cutting blades to cut mulberry branches.

[0084] In another technical solution, the clamping gear box is provided with a sixth gear 46 coaxially fixed with the upper end of the fifth gear axle, a seventh gear 47 meshing with the sixth gear 46, and an eighth gear 48 meshing with the seventh gear 47, wherein the lower end of the sixth gear axle forms the clamping input shaft 19, and the clamping output shaft is coaxially fixed on the upper end of the axle of the eighth gear 48.

[0085] In the above technical solution, a transmission structure is provided, and by setting the sixth gear, the seventh gear and the eighth gear, the rotational kinetic energy can be stably transmitted to the branch clamping output shaft, so that the upper branch clamping roller, the lower branch clamping roller and the front branch clamping pulley can be operated in linkage. The transmission ratio is set according to actual needs, the lower end axle of the fifth gear rotates at a high speed to drive the cutting blade to cut the mulberry branches, and the eighth gear rotates at a slow speed to drive the upper branch clamping roller, the lower branch clamping roller and the front branch clamping pulley to clamp and deliver the branches smoothly.

[0086] In another technical solution, the rotational power structure includes:

[0087] The diesel engine is arranged on the bottom gearbox through a power support, and a driving pulley 50 is coaxially arranged on the output shaft of the diesel engine; specifically, it is arranged in the space below the bottom anti-winding plate, making full use of the upper plane space of the bottom gearbox, and the arrangement is compact. Specifically, the output shaft of the diesel engine is located on its side, and the driving pulley 50 is selected to have a pulley with two belts tensioned at the same time, providing a backup interface for the rotation power output, such as providing a power interface for the traveling vehicle.

[0088] The speed change gearbox 51 is arranged on the rear end of the bottom gearbox through a power bracket, and a clutch 52 is arranged on the speed change gearbox 51. A driven pulley 53 is arranged on the input shaft of the speed change gearbox, and a main belt 54 is arranged to be tensioned between the driven pulley 53 and the driving pulley, wherein the output shaft of the speed change gearbox forms the rotating output shaft. Specifically, the speed change gearbox and the diesel engine are arranged side by side in the space below the bottom anti-entanglement plate and are located at the rear end, so that the user can operate the clutch 52 handle conveniently. Specifically, the rear end of the guide plate is arranged higher than the front end thereof, which can provide a better control space for the clutch operation. An electric telescopic push rod can also be installed to control the gear change of the clutch.

[0089] In the above technical solution, a diesel engine, one of the commonly used rotating power structures, is selected as the power source. After loading a box of diesel, it can provide long-stroke power output to improve the harvesting effect. Operate the clutch handle to disengage the clutch, and shift the gearbox to the forward gear to complete the power output action. The rice-supporting structure, the upper clamping roller, the lower clamping roller, the front clamping pulley, the clamping belt, the rear clamping pulley, and the cutting disc are simultaneously linked and operated. When it is necessary to pause, the gearbox can be shifted to neutral, and the power of the diesel engine can be temporarily input to the rice-supporting structure, the upper clamping roller, the lower clamping roller, the front clamping pulley, the clamping belt, the rear clamping pulley, the cutting disc, etc.

[0090] In another technical solution, a height adjustment structure is also included, which includes:

[0091] A hydraulic oil tank, which is arranged on the bottom gear box;

[0092] A hydraulic gear pump is arranged on the bottom gear box, the oil inlet of the hydraulic gear pump is connected to the oil outlet pipe of the hydraulic oil tank, a pump pulley is coaxially arranged on the input shaft of the hydraulic gear pump, and a pump belt is tensioned between the pump pulley and another belt mounting position of the driving pulley; wherein the oil outlet of the hydraulic gear pump is connected to the oil inlet pipe of a hydraulic reversing valve;

[0093] A pair of hydraulic cylinders, the cylinder barrels of the pair of hydraulic cylinders are symmetrically arranged on both sides of the traveling vehicle through a pair of cylinder barrel supports 63, the piston rods of the hydraulic cylinders are vertically arranged downward and fixed to both sides of the bottom gear box through a pair of mounting frames, and the oil pipes of the pair of hydraulic cylinders are connected to the two oil outlet pipes of the hydraulic reversing valve respectively. Specifically, the mounting frame includes a vertical mounting plate 65 and a fixing plate 66 fixed to both sides of the mounting plate 65, the two fixing plates 66 are in an eight-shaped shape, the lower ends of the fixing plates are fixed to the side walls of the bottom gear box, and the mounting plates are fixed to the piston rod of the hydraulic cylinder; specifically, a pair of cylinder supports 63 are vertically provided with a slide rail 64 on the opposite side walls, a slide plate 67 is fixed to the outer side of the mounting plate, and a protruding plate 68 extending into the slide rail 64 on the corresponding side is protruded on the outer side of the slide plate 67, and the protruding plate 68 does not contact the slide rail, and two pairs of running wheels 69 are spaced apart on both sides of the protruding plate, each pair of running wheels 69 is coaxially arranged, and each pair of running wheels is rotatably clamped in the slide rail and can rotate and move up and down along the slide rail.

[0094] In the above technical solution, when it is necessary to adjust the cutting height of the mulberry branches more accurately, the height of the center of gravity of the entire harvesting module can be adjusted by setting a height adjustment structure, thereby adjusting the cutting height.

[0095] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for cutting mulberry branches without damaging leaves, characterized in that: include: Traveling vehicle; The harvesting module includes: A rotational power structure having a rotational output shaft for outputting rotational kinetic energy; A bottom gearbox, which is detachably arranged on the traveling vehicle, wherein the bottom gearbox has, in order from the rear end to the front end of the traveling vehicle, a main input shaft, a pair of first output shafts vertically upward and symmetrically arranged, and a pair of second output shafts coaxial with the first output shafts and arranged downward, wherein the bottom gearbox is provided with a mulberry gap between the pair of first output shafts, wherein the rotating power structure is arranged on the bottom gearbox, and the rotating output shaft is coaxially fixed with the main input shaft; A pair of cutting discs, the blade shafts of which are respectively fixed coaxially with a pair of second output shafts, and are located at the front end of the traveling vehicle and below the bottom gear box; A pair of branch clamping gear boxes, wherein the pair of branch clamping gear boxes has a branch clamping input shaft coaxially fixed with the first output shaft and a branch clamping output shaft axially inclined, wherein the upper end of the branch clamping output shaft is inclined toward the front end of the traveling vehicle, and the lower branch clamping roller, the front branch clamping pulley, and the upper branch clamping roller are coaxially fixed on the branch clamping output shaft from bottom to top in sequence, and the outer side walls of the lower branch clamping roller and the upper branch clamping roller are coaxially sleeved with soft rubber sleeves, and a pair of soft rubber sleeves are gapped to form a branch clamping gap, and the branch clamping gap is located above and in front of the cutting position of the cutting blade disc; A pair of guide plates, a pair of guide plates are arranged above the bottom gear box through a branch guide support, the front end of the guide plate is arranged close to the front end branch clamping pulley, and the rear end of the guide plate is provided with a rear end branch clamping pulley whose axial direction is parallel to the axial direction of the front end branch clamping pulley, the front end branch clamping pulley and the corresponding rear end branch clamping pulley are tensioned with a branch clamping belt, and a plurality of guide pulleys are axially parallel between the front end branch clamping pulley and the rear end branch clamping pulley, and the branch clamping belt is tensioned and sleeved on a plurality of guide pulleys at the same time, and the guide pulley is located on the side facing each other of a pair of front end branch clamping pulleys; wherein, a gap between a pair of branch clamping belts is provided to form a branch feeding channel.

2. The device for non-destructive cutting of mulberry branches as claimed in claim 1, characterized in that: The bottom gearbox is also provided with a pair of third output shafts which are vertically upward and symmetrically arranged; Also included is a supporting structure, which includes: A pair of right-angle gearboxes, the pair of right-angle gearboxes are respectively fixed to the front ends of the pair of clamping gearboxes through a pair of straw-supporting brackets, and the input shafts of the pair of right-angle gearboxes are respectively connected to the pair of third output shafts through a pair of flexible shafts; A pair of rice-supporting support plates, the pair of rice-supporting support plates are respectively fixed to the front ends of a pair of rice-supporting brackets, a pair of rice-supporting pulleys are arranged on the rice-supporting support plates, the axle of one of the rice-supporting pulleys is coaxially fixed with the output shaft of the right-angle gearbox, a rubber toothed belt is tensioned on the pair of rice-supporting pulleys, wherein the lower end of the rice-supporting support plate is inclined toward the front end, and the long rubber teeth on the outer side of the rubber toothed belt extend out of the rice-supporting support plate; A pair of branch gathering plates, one end of the inner side of the pair of branch gathering plates is respectively fixed on the outer side of a pair of grain supporting plates near the lower end thereof, and the other end of the outer side extends freely outward. The branch gathering plates are in an arc shape and one end of the outer side extends toward the rear end.

3. The device for non-destructive cutting of mulberry branches as claimed in claim 2, characterized in that: It also includes a pair of anti-entanglement protection covers, which are suspended above a pair of upper branch clamping rollers through a pair of cover plate brackets, and the front end of the anti-entanglement protection cover extends close to the front end of the straw support plate, and the rear end of the anti-entanglement protection cover extends close to the guide plate.

4. The device for non-destructive cutting of mulberry branches as claimed in claim 2, characterized in that: It also includes a bottom anti-entanglement plate, which is fixed above the bottom gear box through a lifting bracket and is located below the guide plate. The front end of the bottom anti-entanglement plate is arranged close to the front end clamping pulley, and the rear end of the bottom anti-entanglement plate is arranged in an axially horizontal cylindrical shape and is arranged close to the rear end clamping pulley.

5. The device for non-destructive cutting of mulberry branches as claimed in claim 4, characterized in that: It also includes a branch clamping automatic adjustment structure, wherein the rear end of a branch clamping gear box is coaxially rotatably connected to the first output shaft; The automatic clamping adjustment structure comprises: An I-shaped frame, the upper and lower ends of which are rotatably connected to the upper and lower parts of the corresponding clamping branch output shafts, respectively, and are located outside the clamping branch gear box; A tensioning bracket, which is disposed on the bottom gear box and is located on the same side of the clamping gear box; A plurality of tension springs, two ends of which are respectively and correspondingly fixed on the tension bracket and the I-shaped frame.

6. The device for non-destructive cutting of mulberry branches as claimed in claim 5, characterized in that: The bottom gear box is provided with a first gear arranged axially vertically, a pair of second gears meshing with each other, a pair of third gears meshing with the pair of second gears respectively, a pair of fourth gears meshing with the pair of third gears respectively, and a pair of fifth gears meshing with the pair of fourth gears respectively, wherein the first gear meshes with one of the second gears, the axle of the first gear forms the main input shaft, the axle of the fourth gear forms the third output shaft, the upper end axle of the fifth gear forms the first output shaft, and the lower end axle of the fifth gear forms the second output shaft.

7. The device for non-destructive cutting of mulberry branches as claimed in claim 6, characterized in that: The clamping branch gear box is provided with a sixth gear coaxially fixed with the upper end of the fifth gear axle, a seventh gear meshing with the sixth gear, and an eighth gear meshing with the seventh gear, wherein the lower end of the sixth gear axle forms the clamping branch input shaft, and the clamping branch output shaft is coaxially fixed on the upper end of the eighth gear axle.

8. The device for non-destructive cutting of mulberry branches as claimed in claim 7, characterized in that: The rotating power structure includes: A diesel engine is arranged on the bottom gearbox through a power support, and a driving pulley is coaxially arranged on the output shaft of the diesel engine; A speed gearbox is arranged on the rear end of the bottom gearbox through a power bracket, a clutch is arranged on the speed gearbox, a pulley on the input shaft of the speed gearbox is a driven pulley, a main belt is tensioned between the driven pulley and the driving pulley, wherein the output shaft of the speed gearbox forms the rotating output shaft.

9. The device for non-destructive cutting of mulberry branches as claimed in claim 1, characterized in that: The traveling vehicle is any one of a trolley, a crawler chassis or a wheeled chassis.

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