Tobacco leaf harvesting equipment

Abstract

The invention discloses a tobacco leaf harvesting device, and relates to the technical field of tobacco leaf harvesting device, including a frame mechanism, wherein the frame mechanism includes two groups of frame columns, each group of the frame columns has two columns, and the two groups of frame columns are symmetrically fixedly connected with two groups of connecting plates on one side away from each other, each group of the connecting plates has two columns, and each group of connecting plates is slidably connected with a connecting box. This tobacco leaf harvesting device can make the tobacco leaf harvesting device frame turn smoothly, and make it turn around in place within a smaller range, and make the whole device shrink in the long side direction, and the whole device can turn around in place with a smaller occupied space after shrinking, effectively preventing the whole device from crushing the tobacco leaves in the tobacco field when turning around in place, increasing the convenience of turning and turning around of the tobacco leaf harvesting device frame at the edge of a small plot or in the field, so that the tobacco leaf harvesting device frame can better adapt to the tobacco leaf harvesting work in mountainous and hilly areas.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco leaf harvesting equipment, in particular to tobacco leaf harvesting equipment. Background Art

[0002] Tobacco, commonly known as tobacco, is an annual herbaceous plant of the genus Nicotiana in the Solanaceae family. The leaves are oblong-lanceolate, oblong or ovate, gradually pointed at the apex, narrowed at the base into an ear-shaped semi-amplexicaul shape, and the petioles are not obvious or wing-shaped. Tobacco leaves are the main component of cigarettes and are also agricultural cash crops, and are therefore widely planted. In order to increase the efficiency of tobacco leaf harvesting and reduce the labor intensity of harvesters, tobacco leaf harvesting equipment is used to assist in tobacco leaf harvesting. Since tobacco leaf harvesting equipment has a high harvesting efficiency, it is very suitable for tobacco leaf harvesting in large plains areas.

[0003] However, due to the diverse topography of tobacco cultivation, the production areas of many economic crops are mountainous and hilly areas, especially tobacco cultivation areas, which are widely distributed in mountainous and hilly areas. Due to the small plots and scattered distribution, they are not suitable for large-scale tobacco harvesting machinery and equipment to carry out tobacco harvesting operations. When harvesting in tobacco planting areas in mountainous and hilly areas, the frame of large-scale tobacco harvesting machinery and equipment will have the risk of tilting and overturning due to the slopes on the mountains and hills. At the same time, the frame of large-scale tobacco harvesting machinery and equipment is very large, and it is difficult for small plots of mountainous and hilly areas to turn and turn around according to the needs of tobacco harvesting. As a result, it is very difficult to use agricultural machinery to harvest tobacco in small plots such as mountainous areas and hills, and the equipment is relatively long as a whole. When turning around, it is easy to crush the tobacco leaves in the tobacco fields, causing losses.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing tobacco leaf harvesting equipment, and even if it can be solved, it needs to be solved through the cooperation of external tools, so it is impossible to achieve the desired effect. Therefore, we propose a tobacco leaf harvesting equipment. Summary of the invention

[0005] The object of the present invention is to provide a tobacco leaf harvesting device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tobacco leaf harvesting equipment, including a frame mechanism, the frame mechanism includes two groups of frame columns, each group of the frame columns has two frames, the two groups of frame columns are symmetrically fixedly connected with two groups of connecting plates on the side away from each other, the number of each group of connecting plates is two, each group of connecting plates is slidably connected with a connecting box, there are four connecting boxes in total, and a force storage spring is arranged between each group of connecting plates, wherein the two connecting boxes are fixedly connected with a leaf storage box on the side away from each other, the outer surfaces of the two leaf storage boxes are movably hinged with a discharge door through a hinge, the front faces of the two discharge doors are fixedly connected with a lock buckle, and the tops of the four frame columns are jointly provided with an adjustment mechanism;

[0007] The adjustment mechanism includes a steering adjustment unit, which is arranged above the frame column and is used to complete steering and on-site U-turn actions;

[0008] The adjustment mechanism further comprises a horizontal adjustment unit, which is arranged between four frame columns and is used for leveling the frame;

[0009] A switching mechanism is provided at the bottom of the steering adjustment unit. The switching mechanism is used in conjunction with the adjusting mechanism and is used to switch the traveling mode of the vehicle frame.

[0010] Preferably, the steering adjustment unit comprises four rotating rods, each of which is rotatably connected to the inside of the frame column, the bottom end of each rotating rod is fixedly connected to a slewing bearing, the bottom surface of the slewing bearing is fixedly connected to a fixing frame, a wheel is arranged inside the fixing frame and is rotatably connected to a mounting column, the inner wall of the wheel is movably connected to the outer surface of the mounting column, the top end of each rotating rod is fixedly connected to a steering arm, two U-turn hydraulic cylinders are commonly arranged above the two groups of frame columns, both ends of the two U-turn hydraulic cylinders are fixedly connected to a first movable frame, the inside of each of the first movable frames is rotatably connected to a first fixing pin, the bottom end of each of the first fixing pins is fixedly connected to the upper surface of the steering arm, two steering hydraulic cylinders are commonly arranged above the two groups of frame columns, both ends of the two steering hydraulic cylinders are fixedly connected to a second movable frame, the inside of each of the second movable frames is rotatably connected to a second fixing pin, wherein the bottom ends of two of the second fixing pins are fixedly connected to the upper surface of the steering arm, and the bottom ends of the other two of the second fixing pins are fixedly connected to a limited position seat.

[0011] Preferably, the outer surface of each of the rotating rods is rotatably connected to two bearing frames, and the outer surface of each of the bearing frames is fixedly connected to the inner wall of the frame column.

[0012] Preferably, the horizontal adjustment unit includes four cross beams. The bottom surfaces of two of the limiting seats are respectively fixedly connected to the upper surfaces of two of the cross beams. Hinge brackets are fixedly connected to both ends of each cross beam, and the other ends of each hinge bracket are fixedly connected to the outer surface of the vehicle frame column. Platform support frames are movably hinged to the outer surfaces of each group of cross beams. Positioning columns are fixedly connected to the interiors of the two platform support frames. The two platform support frames are respectively hinged to U-shaped frames through the corresponding positioning columns. A rectangular pipe is symmetrically and slidably connected to the mutually approaching ends of the two U-shaped frames. Two telescopic plates are hinged to the mutually approaching side surfaces of the two platform support frames. The mutually approaching side surfaces of the two groups of telescopic plates are respectively hinged to the two U-shaped frames. The number of each group of telescopic plates is two. Two first positioning seats are fixedly connected to the bottom surfaces of the other two cross beams. A leveling hydraulic cylinder is movably hinged to the interior of each first positioning seat. The other end of each leveling hydraulic cylinder is movably hinged to a second positioning seat. The other end of each second positioning seat is fixedly connected to the outer surface of the vehicle frame column. Two movable seats are fixedly connected to the mutually approaching side surfaces of each group of cross beams. The number of each group of cross beams is two. Compression springs are fixedly connected to the mutually approaching side surfaces of each group of movable seats. There are four groups of movable seats, and the number of each group of movable seats is two.

[0013] Preferably, the switching mechanism includes four couplings. A coupling is fixedly connected to the outer surface of each fixed frame. One end of each mounting column is传动 connected to the output end of the coupling. A driving motor is fixedly connected to the input end of each coupling. A fastening bolt is rotatably connected to the interior of each mounting column. Thread grooves are provided on the outer surface of each fastening bolt. The thread direction of each thread groove is opposite to the thread direction on the outer surface of the fastening bolt. One end of each fastening bolt is threadedly connected to the inner wall of the mounting column through the thread groove. A moving seat is threadedly connected to the outer surface of each fastening bolt. Two return springs are fixedly connected to one side surface of each moving seat. The other end of each return spring is fixedly connected to the inner side wall of the mounting column. Two guide rods are movably hinged to the outer surface of each moving seat. The other end of each guide rod is movably hinged to a clamping block. Each clamping block is slidably connected to the interior of the mounting column. The mutually remote side surfaces of each clamping block are beveled. A fastening block is fixedly connected to one side surface of each clamping block. Each fastening block is slidably connected to the interior of the mounting column. The mutually remote side surfaces of each group of fastening blocks are beveled. The number of each group of fastening blocks is two. One side surface of each fastening block is in contact with the wheel. A crawler wheel is provided above each fixed frame.

[0014] Preferably, symmetric fixing blocks are fixedly connected to the outer surface of each mounting column, and each fixing block is clamped inside the wheel.

[0015] Preferably, a limiting ring is fixedly connected to the outer surface of each of the mounting columns, and one side surface of each of the limiting rings is in contact with the inner side wall of the wheel.

[0016] Preferably, a sliding block is fixedly connected to one side surface of each of the clamping blocks and one side surface of each of the fastening blocks. Each of the sliding blocks is slidably connected to the inside of the mounting column. A hanging column is clamped to the inner wall of each of the crawler wheels. One end of each of the hanging columns is fixedly connected to the outer surface of the frame column. Two pins are clamped to the inside of each of the hanging columns. The inner side wall of each of the pins is in contact with the crawler wheel.

[0017] Preferably, a first meshing disc is fixedly connected to one end of each of the mounting columns away from the wheel. Shaped plates are fixedly connected to the four frame columns. An elastic telescopic rod is rotatably connected to one side of the shaped plate. The telescopic end of the elastic telescopic rod is fixedly connected to a second meshing disc for cooperating with the first meshing disc. An electromagnet is installed on the shaped plate. A magnetic block for cooperating with the electromagnet is arranged inside the elastic telescopic rod. A wire groove is formed in the second meshing disc. One end of a pull rope is fixedly connected inside the wire groove. Guide grooves are symmetrically formed in one side surface of two of the connecting boxes close to each other, and guide wheels are symmetrically rotatably connected. One end of a sliding shaft is fixedly connected to one side surface of two groups of the connecting plates close to each other. The sliding shaft is clamped into the guide groove and slides in the guide groove. The other end of the pull rope is wound around the guide wheel and is fixedly connected to the outer wall of the sliding shaft.

[0018] Preferably, an elastic telescopic shaft is further included. Elastic telescopic shafts are symmetrically hinged to the bottoms of the two U-shaped frames. L-shaped frames are symmetrically slidably connected to the two U-shaped frames. A lifting plate is slidably connected inside the L-shaped frame. A cross bar is fixedly connected between two adjacent lifting plates. One side of the lifting plate is hinged to the telescopic end of the elastic telescopic shaft.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] By arranging the steering adjustment unit, the present invention can enable the frame of the tobacco leaf harvesting device to turn smoothly, and at the same time, it can turn in place within a small range, and make the overall device contract in the long side direction. After the overall device contracts, it can turn in place with a smaller occupied space, effectively preventing the tobacco leaves in the tobacco field from being crushed when the overall device turns in place, increasing the steering and turning convenience of the frame of the tobacco leaf harvesting device at the head or in the field of small plots, and enabling the frame of the tobacco leaf harvesting device to better adapt to the harvesting work of tobacco leaves in mountainous and hilly areas.

[0021] The present invention provides a horizontal adjustment unit, which can adjust the angle between the crossbeam and the frame column so that the two V-shaped frames always remain relatively parallel, thereby ensuring the normal operation of the agricultural machinery mechanism installed on the V-shaped frame and the rectangular tube, and the frame of the tobacco harvesting equipment will not tilt or overturn, further improving the adaptability of the tobacco harvesting equipment to tobacco harvesting in mountains and hills.

[0022] The present invention can quickly disassemble and install wheels by arranging a switching mechanism, thereby increasing the convenience of wheel disassembly, assembly and replacement, and at the same time facilitating switching of track wheels and wheels according to the ground environment of tobacco leaf harvesting, thereby increasing the passability of the tobacco leaf harvesting equipment frame on mountains and hills and the convenience of wheel maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the present invention when the wheel turns around in situ;

[0025] Figure 3 It is a schematic cross-sectional structural diagram of a frame column of the present invention;

[0026] Figure 4 This is a schematic diagram of the installation of the guide wheel of the present invention;

[0027] Figure 5 The schematic diagram of the installation of the elastic telescopic rod of the present invention is

[0028] Figure 6 It is a structural schematic diagram of the crossbeam of the present invention;

[0029] Figure 7 It is a schematic cross-sectional structural diagram of the shaped frame of the present invention;

[0030] Figure 8 It is a schematic diagram of the structure of the crawler wheel of the present invention;

[0031] Fig. 9 It is a cross-sectional structural schematic diagram of the fixing frame of the present invention;

[0032] Fig.10 It is a schematic cross-sectional structural diagram of the mounting column of the present invention.

[0033] In the figure: 1. Frame mechanism; 11. Frame column; 12. Connection plate; 121. Connection box; 122. Connecting rod; 13. Leaf storage box; 14. Discharge door; 15. Lock; 2. Adjustment mechanism; 21. Steering adjustment unit; 2101. Rotating rod; 2102. Slewing bearing; 2103. Fixed frame; 2104. Wheel; 2105. Steering arm; 2106. U-turn hydraulic cylinder; 2107. First movable frame; 2108. First fixing pin; 2109. Steering hydraulic cylinder; 2110. Second movable frame; 2111. Second fixing pin; 2112. Limit seat; 2113. Bearing support; 22. Horizontal adjustment unit; 2201. Cross beam; 2202. Hinge frame; 2203. Platform support frame; 2204. C-shaped frame; 22041. Rectangular pipe; 2205. Positioning column; 2206. Telescopic plate; 2207. Second positioning seat; 2208. Leveling hydraulic cylinder; 2209. First positioning seat; 2210. Movable seat; 2211. Compression spring; 2212. Mounting plate; 2213. Mounting through hole; 3. Switching mechanism; 301. Mounting column; 302. Coupling; 303. Driving motor; 304. Tightening bolt; 305. Thread groove; 306. Moving seat; 307. Return spring; 308. Guide rod; 309. Clamping block; 310. Fastening block; 311. Track wheel; 312. Fixed block; 313. Limit ring; 314. Sliding block; 315. Hanging column; 316. Pin; 317. First meshing disc; 318. Special-shaped plate; 319. Elastic telescopic rod; 320. Second meshing disc; 321. Electromagnet; 322. Guide wheel; 323. Slide shaft; 324. Elastic telescopic shaft; 325. L-shaped frame; 326. Lifting plate; 327. Cross bar. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The present invention provides a technical solution: a tobacco leaf harvesting device, including a frame mechanism 1, the frame mechanism 1 includes two groups of frame columns 11, each group of frame columns 11 has two, and the two groups of frame columns 11 are symmetrically fixedly connected with two groups of connecting plates 12 on the side away from each other, and the number of each group of connecting plates 12 is two, and each group of connecting plates 12 is slidably connected with a connecting box 121, and there are four connecting boxes 121 in total, and a storage spring is arranged between each group of connecting plates 12, wherein the two connecting boxes 121 are fixedly connected with a leaf storage box 13 on the side away from each other, and the outer surfaces of the two leaf storage boxes 13 are hinged with a discharge door 14 through a hinge, and the front faces of the two discharge doors 14 are fixedly connected with a lock buckle 15, and the tops of the four frame columns 11 are jointly provided with an adjustment mechanism 2;

[0036] The adjustment mechanism 2 includes a steering adjustment unit 21 , which is disposed above the frame column 11 . The steering adjustment unit 21 is used to complete steering and in-situ U-turn actions.

[0037] As a further limitation of the adjustment mechanism 2 of the present invention, the steering adjustment unit 21 includes four rotating rods 2101, each rotating rod 2101 is rotatably connected to the inside of the frame column 11, the bottom end of each rotating rod 2101 is fixedly connected to a slewing bearing 2102, the bottom surface of the slewing bearing 2102 is fixedly connected to a fixed frame 2103, the inside of the fixed frame 2103 is provided with a wheel 2104 and a mounting column 301 rotatably connected, the inner wall of the wheel 2104 is movably connected to the outer surface of the mounting column 301, the top of each rotating rod 2101 is fixedly connected to a steering arm 2105, two U-turn hydraulic cylinders 2106 are commonly arranged above the two groups of frame columns 11, both ends of the two U-turn hydraulic cylinders 2106 are fixedly connected to a first movable frame 2107, each first movable frame 2107 is rotatably connected to a first fixing pin 2108, and each first fixed The bottom ends of the fixed pins 2108 are fixedly connected to the upper surface of the steering arm 2105. Two steering hydraulic cylinders 2109 are commonly arranged above the two groups of frame columns 11. The two ends of the two steering hydraulic cylinders 2109 are fixedly connected to the second movable frame 2110. The interior of each second movable frame 2110 is rotatably connected to a second fixed pin 2111, wherein the bottom ends of the two second fixed pins 2111 are fixedly connected to the upper surface of the steering arm 2105, and the bottom ends of the other two second fixed pins 2111 are fixedly connected to the limited position seat 2112. By setting the steering adjustment unit 21, the frame of the tobacco leaf harvesting equipment can be smoothly turned and turned around in place within a smaller range, thereby increasing the convenience of turning and turning of the frame of the tobacco leaf harvesting equipment in small plots or fields, so that the frame of the tobacco leaf harvesting equipment can better adapt to the tobacco leaf harvesting work in mountainous and hilly areas;

[0038] The outer surface of each rotating rod 2101 is rotatably connected to two bearing frames 2113, and the outer surface of each bearing frame 2113 is fixedly connected to the inner wall of the frame column 11. The bearing frame 2113 can limit the position of the rotating rod 2101 inside the frame column 11 without affecting the smooth rotation of the rotating rod 2101, thereby increasing the rotation stability of the rotating rod 2101.

[0039] One end of each mounting column 301 is fixedly connected to a first meshing disk 317, and four frame columns 11 are fixedly connected to a special-shaped plate 318. One side of the special-shaped plate 318 is rotatably connected to an elastic telescopic rod 319. The telescopic end of the elastic telescopic rod 319 is fixedly connected to a second meshing disk 320 used in conjunction with the first meshing disk 317. An electromagnet 321 is installed on the special-shaped plate 318, and a magnetic block used in conjunction with the electromagnet 321 is arranged in the elastic telescopic rod 319. The electromagnet 321 is connected to the magnetic block. The second meshing disk 320 is capable of moving, and a wire taking-up groove is provided on the second meshing disk 320, in which one end of a pull rope is fixedly connected, wherein the two connecting boxes 121 are symmetrically provided with guide grooves on the side surfaces close to each other, and are symmetrically rotatably connected with guide wheels 322, wherein the two sets of connecting plates 12 are fixedly provided with one end of a sliding shaft 323 on the side surfaces close to each other, and the sliding shaft 323 is inserted into the guide groove and slides in the guide groove, and the other end of the pull rope is wound around the guide wheel 322 and fixedly connected to the outer wall of the sliding shaft 323.

[0040] The specific implementation method of this embodiment is as follows: first, the turning hydraulic cylinder 2106 and the steering hydraulic cylinder 2109 are connected to the external power supply, the controller and the vehicle-mounted hydraulic station. When working normally in the tobacco field, the front steering hydraulic cylinder 2109 extends or retracts through the cylinder to push or pull the steering arm 2105. The steering arm 2105 drives the rotating rod 2101 and the internal rotor of the slewing bearing 2102 to rotate through the assistance of the bearing frame 2113 and the frame column 11, thereby making the two front fixed frames 2103 and the wheels 2104 rotate in the same direction. At this time, the two turning hydraulic cylinders 2106 always remain in a retracted state and only act as steering pull rods. At the same time, the rear steering hydraulic cylinder 2109 always remains in a centered state, and the two rear fixed frames 2103 and the wheels 2104 always remain in the forward direction. During the advance, only the steering hydraulic cylinder 2109 needs to be adjusted to adjust the frame steering. The principle of this part is the same as the general frame steering principle. When the frame operates to the end of the field, some plots have no space for turning around, or some agricultural machinery needs to reverse. At this time, you can switch to adjusting the rear steering hydraulic cylinder 2109 to control the frame steering. The front steering hydraulic cylinder 2109 remains in the center. Whether moving forward or backward, the tobacco harvesting equipment can be flexibly turned, and the operation is relatively convenient and quick. When the entire equipment needs to be rotated in situ in the field, the frame drives to the end of the field. At this time, the front steering hydraulic cylinder 2109 and the rear steering hydraulic cylinder 2109 are retracted at the same time, and the front turning hydraulic cylinder 2106 and the rear turning hydraulic cylinder 2106 are extended at the same time. When the two wheels 2104 on the long side of the entire equipment rotate Figure 2 When the two turning hydraulic cylinders 2106 are fully extended, the four fixing frames 2103 and the wheels 2104 can be rotated to form a Figure 2The first meshing disc 317 is in the coaxial state with the corresponding second meshing disc 320. At this time, the electromagnet 321 is started, and the electromagnet 321 repels the magnetic block in the adjacent elastic telescopic rod 319, so that the telescopic end of the elastic telescopic rod 319 drives the second meshing disc 320 to move toward the side close to the adjacent first meshing disc 317. After the second meshing disc 320 moves, it cooperates with the corresponding first meshing disc 317, and at this time, the front left wheel 2104 and the rear left wheel 2104 are driven to rotate forward at the same time, and the front right wheel 2104 and the rear right wheel 2104 are driven to rotate forward at the same time. The wheels 2104 rotate backward at the same time, so that the frame can rotate clockwise in situ, and the purpose of turning around in situ can be achieved. At this time, all the mounting posts 301 rotate with the wheels 2104, and the mounting posts 301 drive the corresponding first meshing disc 317 to rotate, and the first meshing disc 317 drives the corresponding second meshing disc 320 to rotate, and the second meshing disc 320 reels the pull rope through the wire-reeling groove thereon, so that the two adjacent sliding shafts 323 slide close to each other, and the two sliding shafts 323 drive the two adjacent connecting plates 12 to slide close to each other. At this time, the adjacent The force storage spring between the two connecting plates 12 is forced to shrink, thereby causing the entire device to shrink in the long side direction. At this time, the entire device can be turned around on the spot with a smaller footprint after shrinking. The above steps can effectively prevent the tobacco leaves in the tobacco field from being crushed when the entire device turns around on the spot. When the entire device completes the rotation, the electromagnet 321 is turned off, so that the second meshing disk 320 no longer cooperates with the corresponding first meshing disk 317. At this time, the force storage spring between the two adjacent connecting plates 12 is released, thereby causing the entire device to extend and reset. The two adjacent connecting plates 12 drive the sliding shaft 323 thereon to slide and reset, and the sliding shaft 323 drives the second meshing disk 320 to rotate and reset through the corresponding pull rope. If it is necessary to rotate counterclockwise on the spot, it is only necessary to change the direction of the four wheels 2104, so that the tobacco leaf harvesting equipment frame can turn smoothly and turn around on the spot within a smaller range, thereby increasing the steering and turning convenience of the tobacco leaf harvesting equipment frame on small plots of land or in the field, so that the tobacco leaf harvesting equipment frame can better adapt to the tobacco leaf harvesting work in mountainous and hilly areas.

[0041] Example 2: Please refer to Figure 3 , Figure 6 and Figure 7 The present invention provides a technical solution: a tobacco leaf harvesting device. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The adjustment mechanism 2 also includes a horizontal adjustment unit 22, which is arranged between four frame columns 11. The horizontal adjustment unit 22 is used for horizontal leveling of the frame.

[0042] As a further limitation of the adjustment mechanism 2 of the present invention, the horizontal adjustment unit 22 includes four cross beams 2201. The bottom surfaces of two limit seats 2112 are respectively fixedly connected to the upper surfaces of two of the cross beams 2201. At both ends of each cross beam 2201, a hinge frame 2202 is fixedly connected. The other end of each hinge frame 2202 is fixedly connected to the outer surface of the vehicle frame column 11. The outer surfaces of each group of cross beams 2201 are movably hinged with a platform support frame 2203. Inside both platform support frames 2203, a positioning column 2205 is fixedly connected. Two platform support frames 2203 are respectively hinged with a U-shaped frame 2204 through the corresponding positioning columns 2205. At the symmetrically common sliding connection of the mutually approaching ends of the two U-shaped frames 2204, there is a rectangular tube 22041. On the mutually approaching side surfaces of the two platform support frames 2203, two telescopic plates 2206 are respectively hinged. The mutually approaching side surfaces of the two groups of telescopic plates 2206 are respectively hinged to the two U-shaped frames 2204. The number of each group of telescopic plates 2206 is two. On the bottom surfaces of the other two cross beams 2201, two first positioning seats 2209 are fixedly connected. Inside each first positioning seat 2209, a leveling hydraulic cylinder 2208 is movably hinged. The other end of each leveling hydraulic cylinder 2208 is movably hinged with a second positioning seat 2207. The other end of each second positioning seat 2207 is fixedly connected to the outer surface of the vehicle frame column 11. On the mutually approaching side surfaces of each group of cross beams 2201, two movable seats 2210 are fixedly connected. The number of each group of cross beams 2201 is two. On the mutually approaching side surfaces of each group of movable seats 2210, a compression spring 2211 is fixedly connected. There are four groups of movable seats 2210, and the number of each group of movable seats 2210 is two. By providing the horizontal adjustment unit 22, the angle between the cross beam 2201 and the vehicle frame column 11 can be adjusted, so that the U-shaped frame 2204 can always be kept relatively parallel, thereby ensuring the normal operation of the agricultural machinery mechanism installed on the U-shaped frame 2204, and the vehicle frame of the tobacco leaf harvesting equipment will not tilt and overturn, further improving the adaptability of the tobacco leaf harvesting equipment to the tobacco leaf harvesting on mountains and hills;

[0043] It further includes an elastic telescopic shaft 324. At the symmetrically hinged positions at the bottoms of the two U-shaped frames 2204, there are elastic telescopic shafts 324. On the two U-shaped frames 2204, there are symmetrically sliding L-shaped frames 325. Inside the L-shaped frames 325, there are sliding lifting plates 326. The lifting plates 326 can only be lifted upward for a short distance. Between adjacent two lifting plates 326, there is a cross bar 327 fixedly connected in common. One side of the lifting plate 326 is hinged to the telescopic end of the elastic telescopic shaft 324.

[0044] The specific implementation manner of this embodiment is as follows: First, connect the leveling hydraulic cylinder 2208 to an external power source and a hydraulic station, and install the tobacco leaf harvesting agricultural machinery mechanism on two cross bars 327. When operating on a sloping ground, for example, when the tobacco leaf harvesting needs to be carried out in a field with a higher left and a lower right, only need to adjust the leveling hydraulic cylinder 2208 to adjust the vehicle frame so that the vehicle frame adapts to the slope of this ground. Utilize the front left leveling hydraulic cylinder 2208 and the rear left leveling hydraulic cylinder 2208 to cooperate with the first positioning seat 2209 and the second positioning seat 2207 to retract, and the front right leveling hydraulic cylinder 2208 and the rear right leveling hydraulic cylinder 2208 to cooperate with the first positioning seat 2209 and the second positioning seat 2207 to extend, and adjust until the cross beam 2201 is parallel to this sloping ground. Since the platform support frame 2203 and the cross beam 2201 are in a movable hinge relationship, and the C-shaped frame 2204 and the platform support frame 2203 are in a movable hinge relationship, the C-shaped frame 2204 will not tilt with the tilt of the platform support frame 2203, and through the extension or contraction of two telescopic plates 2206, the C-shaped frame 2204 and the rectangular pipe 22041 are further kept in a horizontal state, thereby ensuring the normal operation of the agricultural machinery mechanism installed on the cross bar 327, and the overall vehicle frame will not tilt and roll over, further improving the adaptability of the tobacco leaf harvesting equipment to the tobacco leaf harvesting on mountains and hills. Moreover, since both the first movable frame 2107 and the second movable frame 2110 are movable structures, the turning hydraulic cylinder 2106 and the steering hydraulic cylinder 2109 will not affect the angle change during the leveling of the cross beam 2201 and the vehicle frame column 11. And through the movable seat 2210 cooperating with the compression spring 2211, it can also assist the cross beam 2201 to maintain a stable structure while not affecting the leveling work of the cross beam 2201, and help the leveling hydraulic cylinder 2208 to push the cross beam 2201 and the vehicle frame column 11 to return to the horizontal state.

[0045] When the overall device contracts in the long side direction, the two sets of frame columns 11 move closer to each other, thereby causing the two U-shaped frames 2204 to move closer to each other. The ends of the two U-shaped frames 2204 that move closer to each other slide within the corresponding rectangular tubes 22041. At this time, the two U-shaped frames 2204 drive the two adjacent elastic telescopic shafts 324 to move. The L-shaped frames 325 slide within the corresponding U-shaped frames 2204 respectively. The telescopic ends of the elastic telescopic shafts 324 squeeze the lifting plates 326, and the lifting plates 326 are forced to lift upward. At this time, the two adjacent lifting plates 326 drive the corresponding crossbars 327 to lift, thereby causing the agricultural machinery mechanism installed on the crossbars 327 to lift upward. When the lifting plates 326 are lifted to the limit, the two sets of frame columns 11 continue to move closer to each other, thereby causing the two U-shaped frames 2204 to continue to drive the corresponding elastic telescopic shafts 324 to move respectively. At this time, the telescopic ends of the elastic telescopic shafts 324 begin to contract. When the overall device extends and resets, the two U-shaped frames 2204 move away from each other and reset, thereby causing the telescopic ends of the two adjacent elastic telescopic shafts 324 to be released first. When the telescopic ends of the elastic telescopic shafts 324 are completely released, the two adjacent elastic telescopic shafts 324 follow the U-shaped frames 2204 to move and reset. The telescopic ends of the elastic telescopic shafts 324 no longer squeeze the adjacent lifting plates 326, and the lifting plates 326 fall and reset. Through the above steps, it is possible to avoid the collision between the agricultural machinery mechanism on the crossbar 327 and other parts on the device when the overall device contracts.

[0046] Embodiment 3: Please refer to Figure 8 、 Fig. 9 and Fig.10 , the present invention provides a technical solution: a tobacco leaf harvesting device. The present invention makes corresponding improvements to the technical problems mentioned in the background art. A switching mechanism 3 is provided at the bottom of the steering adjustment unit 21. The switching mechanism 3 is used in cooperation with the adjustment mechanism 2. The switching mechanism 3 is used to switch the traveling mode of the frame.

[0047] As a further limitation of the switching mechanism 3 of the present invention, the switching mechanism 3 includes four couplings 302, the outer surface of each fixed frame 2103 is fixedly connected with a coupling 302, one end of each mounting column 301 is transmission-connected to the output end of the coupling 302, the input end of each coupling 302 is fixedly connected to a driving motor 303, the interior of each mounting column 301 is rotatably connected with a fastening bolt 304, the outer surface of each fastening bolt 304 is provided with a thread groove 305, the thread direction of each thread groove 305 is opposite to the thread direction of the outer surface of the fastening bolt 304, one end of each fastening bolt 304 is threadedly connected to the inner wall of the mounting column 301 through the thread groove 305, the outer surface of each fastening bolt 304 is threadedly connected to a moving seat 306, one side of each moving seat 306 is fixedly connected with two return springs 307, the other end of each return spring 307 is fixedly connected to the inner wall of the mounting column 301, and the outer surface of each moving seat 306 The two surfaces are movably hinged with two guide rods 308, and the other end of each guide rod 308 is movably hinged with a clamping block 309, each clamping block 309 is slidably connected to the inside of the mounting column 301, and the side of each clamping block 309 away from each other is an inclined surface, and one side of each clamping block 309 is fixedly connected with a fastening block 310, and each fastening block 310 is slidably connected to the inside of the mounting column 301, and the side of each group of fastening blocks 310 away from each other is an inclined surface, and the side of each group of fastening blocks 310 is There are two of them, one side of each fastening block 310 is in contact with the wheel 2104, and a track wheel 311 is arranged on the top of each fixing frame 2103. By setting a switching mechanism 3, the wheel 2104 can be quickly disassembled and installed, which increases the convenience of disassembly, assembly and replacement of the wheel 2104. At the same time, it is convenient to switch the track wheel 311 and the wheel 2104 according to the ground environment of tobacco leaf harvesting, thereby increasing the passability of the tobacco leaf harvesting equipment frame on mountains and hills and the convenience of maintenance of the wheel 2104;

[0048] The outer surface of each mounting column 301 is fixedly connected with a symmetrical fixing block 312, and each fixing block 312 is clamped inside the wheel 2104. The fixing block 312 can prevent the mounting column 301 and the wheel 2104 from rotating relative to each other, so as to ensure that the mounting column 301 can smoothly drive the wheel 2104 to rotate;

[0049] The outer surface of each mounting post 301 is fixedly connected to a limiting ring 313, and one side of each limiting ring 313 contacts the inner side wall of the wheel 2104. The limiting ring 313 can limit the position of the wheel 2104 on the mounting post 301, so that the wheel 2104 is not prone to relative sliding after being fixed on the mounting post 301, thereby improving the matching firmness between the wheel 2104 and the mounting post 301;

[0050] A sliding block 314 is fixedly connected to one side of each clamping block 309 and one side of each fastening block 310. Each sliding block 314 is slidably connected to the inside of the mounting column 301. The sliding block 314 slides inside the mounting column 301, which can prevent the clamping block 309 and the fastening block 310 from being loosened from the mounting column 301 without affecting the smooth sliding of the clamping block 309 and the fastening block 310, thereby increasing the reliability of the use of the clamping block 309 and the fastening block 310.

[0051] The inner wall of each track wheel 311 is clamped with a hanging column 315, one end of each hanging column 315 is fixedly connected to the outer surface of the frame column 11, and the interior of each hanging column 315 is clamped with two latches 316, and the inner side wall of each latch 316 is in contact with the track wheel 311. The hanging column 315 and the latch 316 can be used to fix the track wheel 311 on the frame column 11, thereby increasing the carrying convenience of the track wheel 311.

[0052] The specific implementation of this embodiment is as follows: when it is necessary to replace the crawler wheel 311 according to the ground environment of tobacco leaf harvesting, the fastening bolt 304 is first rotated counterclockwise. At this time, the fastening bolt 304 gradually withdraws from the inside of the mounting column 301 with the cooperation of the thread groove 305, and the thread on the fastening bolt 304 is disconnected from the thread connection with the moving seat 306, so that the moving seat 306 is located in the blank space between the thread groove 305 and the thread on the fastening bolt 304, so that the moving seat 306 loses its limit, and then the clamping block 309 and the fastening block 31 can be manually moved. 0 is pressed into the interior of the mounting column 301. When the clamping block 309 enters the interior of the mounting column 301, it will force the return spring 307 to contract through the guide rod 308 and the movable seat 306. At this time, the wheel 2104 can be quickly removed from the mounting column 301, and then the latch 316 is pulled out from the hanging column 315 to release the limit of the track wheel 311. The track wheel 311 can be removed from the hanging column 315, and then the driving wheel of the track wheel 311 is clamped into the mounting column 301 through the fixing block 312 to ensure that the drive motor 303 cooperates with the coupling 3 02 and fixing frame 2103, can smoothly drive the driving wheel of track wheel 311 to rotate through mounting column 301, so that track wheel 311 can operate normally. When track wheel 311 is smoothly clamped into mounting column 301 through the inclined surface of clamping block 309, the thrust provided by return spring 307 cooperates with moving seat 306 and guide rod 308 to push clamping block 309 out of mounting column 301, cooperates with fastening block 310 to limit the position of track wheel 311 on mounting column 301, and then rotates fastening bolt 304 clockwise, and fastening bolt 304 will pass through screw The threaded connection between the groove 305 and the mounting column 301 gradually enters the interior of the mounting column 301 until the thread on the fastening bolt 304 is re-threadedly connected to the movable seat 306. At this time, the position of the movable seat 306 can be positioned so that the movable seat 306 cannot slide, thereby ensuring the stability of the track wheel 311 installed on the mounting column 301. Therefore, it is convenient to switch the track wheel 311 and the wheel 2104 according to the ground environment of tobacco harvesting, thereby increasing the passability of the tobacco harvesting equipment frame on mountains and hills and the convenience of maintenance of the wheel 2104.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tobacco leaf harvesting device, comprising a frame mechanism (1), characterized in that: The frame mechanism (1) comprises two groups of frame columns (11), each group of the frame columns (11) has two members, two groups of connecting plates (12) are symmetrically fixedly connected to the side faces of the two groups of frame columns (11) away from each other, each group of the connecting plates (12) has two members, a connecting box (121) is slidably connected to each other on each group of connecting plates (12), there are four connecting boxes (121), a force storage spring is arranged between each group of connecting plates (12), a leaf storage box (13) is fixedly connected to the side faces of the two connecting boxes (121) away from each other, the outer surfaces of the two leaf storage boxes (13) are hingedly connected to a discharge door (14) through a hinge, the front faces of the two discharge doors (14) are fixedly connected to a lock buckle (15), and an adjustment mechanism (2) is arranged on the tops of the four frame columns (11); The adjustment mechanism (2) comprises a steering adjustment unit (21), wherein the steering adjustment unit (21) is arranged above the frame column (11), and the steering adjustment unit (21) is used to complete steering and in-situ U-turn actions; The adjustment mechanism (2) further comprises a horizontal adjustment unit (22), wherein the horizontal adjustment unit (22) is arranged between four frame uprights (11), and the horizontal adjustment unit (22) is used for adjusting the horizontal level of the frame; A switching mechanism (3) is provided at the bottom of the steering adjustment unit (21), the switching mechanism (3) is used in conjunction with the adjustment mechanism (2), and the switching mechanism (3) is used to switch the travel mode of the vehicle frame; The steering adjustment unit (21) comprises four rotating rods (2101), each of the rotating rods (2101) is rotatably connected to the inside of the frame column (11), the bottom end of each rotating rod (2101) is fixedly connected to a slewing bearing (2102), the bottom surface of the slewing bearing (2102) is fixedly connected to a fixing frame (2103), a wheel (2104) is arranged inside the fixing frame (2103) and is rotatably connected to a mounting column (301), the inner wall of the wheel (2104) is movably connected to the outer surface of the mounting column (301), the top end of each rotating rod (2101) is fixedly connected to a steering arm (2105), and two turning hydraulic cylinders (2106) are arranged above the two groups of frame columns (11), and the two turning hydraulic cylinders (2106) are The ends of the two sets of frame columns (11) are fixedly connected to a first movable frame (2107), each of the first movable frames (2107) is rotatably connected to a first fixing pin (2108), the bottom end of each of the first fixing pins (2108) is fixedly connected to the upper surface of the steering arm (2105), two steering hydraulic cylinders (2109) are commonly arranged above the two sets of frame columns (11), both ends of the two steering hydraulic cylinders (2109) are fixedly connected to a second movable frame (2110), each of the second movable frames (2110) is rotatably connected to a second fixing pin (2111), the bottom ends of two of the second fixing pins (2111) are fixedly connected to the upper surface of the steering arm (2105), and the bottom ends of the other two of the second fixing pins (2111) are fixedly connected to a limiting seat (2112); The horizontal adjustment unit (22) includes four cross beams (2201). The bottom surfaces of two of the limiting seats (2112) are respectively fixedly connected to the upper surfaces of two of the cross beams (2201). Both ends of each cross beam (2201) are fixedly connected with hinge brackets (2202), and the other end of each hinge bracket (2202) is fixedly connected to the outer surface of the vehicle frame column (11). A platform support frame (2203) is movably hinged to the outer surface of each group of cross beams (2201). A positioning column (2205) is fixedly connected to the inside of each of the two platform support frames (2203). The two platform support frames (2203) are respectively hinged with a C-shaped frame (2204) through the corresponding positioning columns (2205). A rectangular tube (22041) is symmetrically and slidably connected to the ends of the two C-shaped frames (2204) close to each other. Two telescopic plates (2206) are hinged to the side surfaces of the two platform support frames (2203) close to each other. One side surfaces of the two groups of telescopic plates (2206) close to each other are respectively hinged to the two C-shaped frames (2204). The number of each group of telescopic plates (2206) is two. Two first positioning seats (2209) are fixedly connected to the bottom surfaces of the other two cross beams (2201). A leveling hydraulic cylinder (2208) is movably hinged to the inside of each first positioning seat (2209). The other end of each leveling hydraulic cylinder (2208) is movably hinged to a second positioning seat (2207). The other end of each second positioning seat (2207) is fixedly connected to the outer surface of the vehicle frame column (11). Two movable seats (2210) are fixedly connected to the side surfaces of each group of cross beams (2201) close to each other. The number of each group of cross beams (2201) is two. A compression spring (2211) is fixedly connected to the side surfaces of each group of movable seats (2210) close to each other. There are four groups of movable seats (2210), and the number of each group of movable seats (2210) is two; The switching mechanism (3) comprises four couplings (302), the outer surface of each fixing frame (2103) is fixedly connected to a coupling (302), one end of each mounting column (301) is drivingly connected to the output end of the coupling (302), the input end of each coupling (302) is fixedly connected to a driving motor (303), the interior of each mounting column (301) is rotatably connected to a fastening bolt (304), the outer surface of each fastening bolt (304) is provided with a thread groove (305), the thread direction of each thread groove (305) is opposite to the thread direction of the outer surface of the fastening bolt (304), one end of each fastening bolt (304) is threadedly connected to the inner wall of the mounting column (301) through the thread groove (305), the outer surface of each fastening bolt (304) is threadedly connected to a moving seat (306), and one side of each moving seat (306) is fixedly connected to two return springs ( 307), the other end of each of the return springs (307) is fixedly connected to the inner wall of the mounting column (301), the outer surface of each of the movable seats (306) is movably hinged to two guide rods (308), the other end of each of the guide rods (308) is movably hinged to a clamping block (309), each of the clamping blocks (309) is slidably connected to the inside of the mounting column (301), and the side faces of each of the clamping blocks (309) that are away from each other are inclined. A fastening block (310) is fixedly connected to one side of the clamping block (309), and each of the fastening blocks (310) is slidably connected to the inside of the mounting column (301). The side of each group of fastening blocks (310) that is away from each other is an inclined surface. The number of fastening blocks (310) in each group is two, and one side of each fastening block (310) is in contact with the wheel (2104). A track wheel (311) is arranged above each fixing frame (2103).

2. The tobacco leaf harvesting device according to claim 1, characterized in that: The outer surface of each rotating rod (2101) is rotatably connected to two bearing frames (2113), and the outer surface of each bearing frame (2113) is fixedly connected to the inner wall of the frame column (11).

3. The tobacco leaf harvesting device according to claim 1, characterized in that: A symmetrical fixing block (312) is fixedly connected to the outer surface of each mounting column (301), and each fixing block (312) is clamped inside the wheel (2104).

4. The tobacco leaf harvesting device according to claim 1, characterized in that: The outer surface of each mounting column (301) is fixedly connected to a limiting ring (313), and one side surface of each limiting ring (313) is in contact with the inner side wall of the wheel (2104).

5. The tobacco leaf harvesting device according to claim 1, characterized in that: One side of each of the clamping blocks (309) and one side of each of the fastening blocks (310) are fixedly connected with sliding blocks (314). Each of the sliding blocks (314) is slidably connected inside the mounting post (301). The inner wall of each of the crawler wheels (311) is clamped with a hanging post (315). One end of each of the hanging posts (315) is fixedly connected to the outer surface of the vehicle frame column (11). Two pins (316) are clamped inside each of the hanging posts (315). The inner side wall of each of the pins (316) is in contact with the crawler wheel (311).

6. The tobacco leaf harvesting device according to claim 1, characterized in that: One end of each of the mounting posts (301) away from the wheel (2104) is fixedly connected with a first meshing disc (317). Special-shaped plates (318) are fixedly connected to the four vehicle frame columns (11). An elastic telescopic rod (319) is rotatably connected to one side of the special-shaped plate (318). The telescopic end of the elastic telescopic rod (319) is fixedly connected with a second meshing disc (320) used in cooperation with the first meshing disc (317). An electromagnet (321) is installed on the special-shaped plate (318). A magnetic block used in cooperation with the electromagnet (321) is arranged inside the elastic telescopic rod (319). A wire groove is formed on the second meshing disc (320). One end of a pulling rope is fixedly connected inside the wire groove. Guide grooves are symmetrically formed on one side surface of two adjacent connection boxes (121) close to each other, and guide wheels (322) are symmetrically rotatably connected. One end of a sliding shaft (323) is fixedly connected to one side surface of two groups of adjacent connection plates (12) close to each other. The sliding shaft (323) is inserted into the guide groove and slides inside the guide groove. The other end of the pulling rope is wound around the guide wheel (322) and is fixedly connected to the outer wall of the sliding shaft (323).

7. The tobacco leaf harvesting device according to claim 1, characterized in that: An elastic telescopic shaft (324) is further included. The elastic telescopic shafts (324) are symmetrically hinged to the bottom of the two U-shaped frames (2204). L-shaped frames (325) are symmetrically slidably connected to the two U-shaped frames (2204). A lifting plate (326) is slidably connected inside the L-shaped frame (325). Cross bars (327) are fixedly connected between two adjacent lifting plates (326). One side of the lifting plate (326) is hinged to the telescopic end of the elastic telescopic shaft (324).

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