A high-stalk crop working vehicle

Abstract

This invention provides a tall crop harvesting vehicle, which includes a chassis, an upper frame, and harvesting implements. The chassis includes two sets of longitudinal double-section axles arranged symmetrically on the left and right sides, with steerable wheels at both ends of the two sets of longitudinal double-section axles. The upper frame is a gantry frame, with its left and right sides connected to the rocker arms of the two sets of longitudinal double-section axles. A passage for tall crops to pass through is provided in the middle of the upper frame and chassis. The harvesting implements include a lower cutting device, a straightening frame, a conveying device, a leaf stripping device, and a collection bin. The harvesting vehicle can perform the harvesting, conveying, and leaf stripping of tall crops while in motion, greatly improving production efficiency.

Description

Technical Field

[0001] This invention relates to agricultural machinery, specifically to a tall crop handling vehicle. Background Technology

[0002] Tall crops refer to plants that grow taller than ordinary crops, such as corn, sorghum, and sugarcane. Because of their greater height, these crops require machinery with specific capabilities to operate in tall crop fields.

[0003] At the same time, the uneven terrain of tall crop fields places higher demands on the mobility, passability, and attitude adjustment of machinery.

[0004] This invention provides a novel tall crop handling vehicle. Summary of the Invention

[0005] This invention provides a tall crop handling vehicle, which includes a chassis, a frame, and harvesting implements.

[0006] The chassis includes two sets of longitudinal double-section axles arranged symmetrically on the left and right, and both ends of the two sets of longitudinal double-section axles are equipped with steerable wheels.

[0007] The upper frame is a gantry frame, and the left and right sides of the upper frame are connected to the rocker arms of two sets of longitudinal double-section bridges respectively. The upper frame and the middle of the chassis are provided with a passage for tall crops to pass through.

[0008] The harvesting implement is equipped with a lower cutting device, a straightening frame, a conveying device, a leaf stripping device, and an upper cutting device. The lower cutting device is installed at the bottom front side of the chassis to cut tall crops from the bottom. The straightening frame is installed in the passage, with a straightening frame passage in the middle for tall crops to pass through. A "V"-shaped guide opening is provided at the front end of the straightening frame. The straightening frame is equipped with a conveying device for transporting tall crops backward and a leaf stripping device for stripping leaves. The upper cutting device is installed at the top of the straightening frame to cut tall crops from the head.

[0009] Furthermore, the straightening frame is equipped with left and right straightening frames that are spaced apart on the left and right sides.

[0010] The rear end of the straightening frame is equipped with a material collection bin with a bottom plate, and the front opening of the material collection bin is connected to the straightening frame channel;

[0011] The front ends of the left and right straightening frames are equipped with left and right guide frames that bend to the left and right respectively, forming a "V" shaped guide opening between the left and right guide frames.

[0012] Furthermore, the conveying device consists of a first spiral conveyor mounted on the left guide frame and a second spiral conveyor mounted on the right straightening frame;

[0013] Two rotating levers are installed at the front end of the right straightening frame. The rotating levers include multiple long levers on the horizontal rotating disk and circumferentially mounted on the rotating disk.

[0014] Multiple rows of rubber plates in the front-to-back direction are installed on the opposite sides of the left and / or right straightening frames. The leaf stripping device is equipped with multiple rows of cutting blades that are installed at an angle to the front and back on the left and / or right straightening frames.

[0015] Furthermore, two sets of lower cutting devices are installed on the bottom front side of the chassis. Each lower cutting device includes a parallel four-bar linkage, a lifter, and a lower rotary cutter. The parallel four-bar linkage has parallel fixed bars and floating bars, connected by two parallel connecting rods. The fixed bars are fixed to the chassis, and a horizontal lower rotary cutter is fixedly installed on the floating bars. The lifter is connected to the connecting rods to drive the floating bars to move up and down.

[0016] A guide plate that tilts backward and upward is provided between the two lower rotary cutters. The guide plate is fixedly connected to the floating bar through a connecting frame.

[0017] The upper cutting device is installed on top of the gantry frame and includes an upper rotary cutter.

[0018] Furthermore, the longitudinal double-section bridge is equipped with a rocker arm, and a movable connecting rod is rotatably installed at both ends of the rocker arm. One end of the movable connecting rod is horizontally rotatably connected to the rocker arm, and a first active push rod is connected between the movable connecting rod and the rocker arm. The other end of the movable connecting rod is horizontally rotatably mounted with a traveling wheel with a drive component, and a second active push rod is connected between the movable connecting rod and the traveling wheel.

[0019] The upper frame is vertically and rotatably connected to the rocker arms of two sets of longitudinal double-section axles on the left and right sides respectively. A third active push rod is connected between the rocker arms and the upper frame.

[0020] The first, second, and third active push rods are electric or hydraulic push rods, and the driving components are drive motors or drive motors.

[0021] Furthermore, each rocker arm is equipped with a pair of swing mounting brackets arranged on the left and right sides of the rocker arm. The swing mounting brackets on both sides of the rocker arm are fixedly connected by a flange shaft. The rocker arm has through holes on the left and right sides and bearings are installed there. The flange shaft passes through the bearings and rotates with the bearings.

[0022] The top of the swing mounting bracket is equipped with a frame mounting block, and the upper frame is bolted to the frame mounting blocks of the two pairs of swing mounting brackets on both sides.

[0023] Furthermore, the upper frame is fixedly connected to the swing mounting brackets on both sides via modular connecting plates;

[0024] The module connection plate consists of two "I"-shaped plates and a middle connection plate. The top of a pair of swing mounting brackets on both sides of each rocker arm is fixedly connected by an "I"-shaped plate, and the middle of the "I"-shaped plates on the left and right sides is fixedly connected by the middle connection plate.

[0025] The I-shaped plate and the swing mounting frame are fixedly connected by bolts, and the two I-shaped plates are fixedly connected to the middle connecting plate by bolts.

[0026] The middle connecting plate is a flat plate or a U-shaped plate, which is installed upright or upside down between the two I-shaped plates.

[0027] Furthermore, the upper frame is provided with a left frame and a right frame that are fixedly installed on the two "I"-shaped plates on both sides. There is a gap between the left frame and the right frame and the top is fixedly connected by a connecting top frame.

[0028] Both the left and right frames include two longitudinal support plates located on both sides of the longitudinal double-section axle. The top of the longitudinal support plates is vertically connected to the outer frame, and the two longitudinal support plates are connected to the floor platform in the middle.

[0029] Both the longitudinal support plate and the rocker arm are U-shaped metal frames with a downward-recessed center.

[0030] The advantages of this invention are:

[0031] 1. The gantry frame design allows tall crops to enter the frame's passageway for transport and leaf removal. The harvesting, transporting, and leaf removal processes of tall crops can be carried out while the vehicle is in motion.

[0032] 2. The harvester is equipped with two sets of cutting devices, which can cut off the bottom and top of tall crops respectively.

[0033] 3. Enhanced adaptability: The chassis and upper frame design of the work vehicle enable it to adapt to different terrains and crop heights, ensuring operational stability and safety.

[0034] 4. It reduces labor intensity, has a high degree of automation, and is easy to operate, greatly reducing farmers' physical labor and lowering operating costs. Through optimized design, it reduces the manufacturing and maintenance costs of the work vehicle and improves economic efficiency.

[0035] 5. Improved crop processing quality: The harvesting equipment of the work vehicle is well-designed, which can effectively reduce crop damage and improve the quality of harvested crops. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a structural diagram of an agricultural vehicle frame for a double-section axle all-wheel drive free-steering chassis according to the present invention;

[0038] Figure 2 This is a side view of the agricultural vehicle frame of the present invention;

[0039] Figure 3 A schematic diagram showing the upper frame of an agricultural vehicle in an absolutely horizontal state when going up a slope;

[0040] Figure 4 This is a perspective view of the chassis and the bottom frame of the upper frame of the agricultural vehicle frame of the present invention;

[0041] Figure 5 for Figure 4 Side view;

[0042] Figure 6 This is a structural diagram of a chassis consisting of two sets of longitudinal double-section bridges and a modular connecting plate used to connect the two sets of longitudinal double-section bridges.

[0043] Figure 7 This is a structural diagram of a single-sided longitudinal double-section bridge;

[0044] Figure 8 This is a schematic diagram of a single-sided longitudinal double-section bridge in an inward-facing (eight-legged) configuration.

[0045] Figure 9 This is a schematic diagram of a single-sided longitudinal double-section bridge in an outward octagonal configuration;

[0046] Figure 10 The diagram shows the installation of the intermediate connecting plates of the module connecting plate, which are flat plates, upright U-shaped plates, and inverted U-shaped plates.

[0047] Figure 11 This is a schematic diagram of the overall frame of a tall crop operation vehicle according to the present invention;

[0048] Figure 12 A three-dimensional structural diagram of the harvesting equipment;

[0049] Figure 13 This is a side view of the harvesting equipment;

[0050] Figure 14 This is a three-dimensional structural diagram of the harvesting equipment. Detailed Implementation

[0051] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0052] To fully understand this invention, detailed steps and structures will be presented in the following description to illustrate the technical solution of this invention. Preferred embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0053] The present invention provides a tall crop operation vehicle, which mainly consists of a chassis 1000, an upper frame 2000, and a harvesting implement 3000.

[0054] Figure 1-8 The diagram shows the structure of the chassis 1000 and the upper frame 2000 of the present invention.

[0055] like Figure 7 As shown, the chassis 1000 includes two sets of longitudinal double-section axles 1100 arranged symmetrically on the left and right. Each longitudinal double-section axle 1100 is equipped with a rocker arm 1101. A movable connecting rod 1102 is rotatably mounted at both ends of the rocker arm 1101. One end of the movable connecting rod 1102 is horizontally rotatably connected to the rocker arm 1101. A first active push rod 1103 connects the movable connecting rod 1102 and the rocker arm 1101. The other end of the movable connecting rod 1102 is horizontally rotatably mounted with a traveling wheel 1300 equipped with a drive component 1301. A second active push rod 1104 connects the movable connecting rod 1102 and the traveling wheel 1300. The drive component 1301 can be a drive motor or a drive motor, preferably a hub motor.

[0056] Through the above structure, the longitudinal double-section axle of the present invention can achieve a greater swing amplitude of the wheels: 1. The rotation between the movable link 1102 and the rocker arm 1101 is driven by the extension and retraction of the first active push rod 1103; the first-level attitude adjustment of the wheels, i.e., axle steering, is achieved; 2. The rotation between the movable link 1102 and the traveling wheel 1300 is driven by the extension and retraction of the second active push rod 1104; the swing adjustment of the traveling wheel 1300 can be performed again on the basis of the first-level attitude adjustment, i.e., wheel steering, so as to achieve a greater swing amplitude of the wheels.

[0057] This invention proposes a dual-joint steering drive axle. Figure 7-9 Schematic diagrams of a single-sided longitudinal double-section bridge in three different states are shown. Figure 7The diagram shows one of the longitudinal double-section axles in a straight-line driving state. When both longitudinal double-section axles are in this state, the chassis is in a straight-line driving state. Complex steering of the chassis can be achieved by controlling the left and right rotation of the movable connecting rod 1102 through the first active push rod 1103 and controlling the left and right swing of the traveling wheel 1300 through the second active push rod 1104. Figure 8 The diagram shown is a schematic of one of the longitudinal double-section bridges, which is octagonal inward. Figure 9 The diagram shows one of the longitudinal double-section bridges, which is octagonal in shape.

[0058] This structure, through its ingenious design, enables the wheels to achieve a greater range of oscillation. This design primarily relies on the extension and retraction of two active push rods to drive the rotation between the connecting rod and the rocker arm. First, the extension and retraction of the first active push rod 1103 drives the rotation between the movable connecting rod 1102 and the rocker arm 1101. This rotation achieves primary wheel attitude adjustment, defined in this application as bridge steering. Second, the extension and retraction of the second active push rod 1104 drives the rotation between the movable connecting rod 1102 and the traveling wheel 1300. Based on the primary attitude adjustment, this rotation can further adjust the wheel's oscillation, defined in this application as wheel steering. This design allows for a greater range of wheel oscillation, enabling the vehicle to better adapt to various road conditions during driving. This invention employs a two-stage adjustment method, allowing for a greater range of wheel adjustment, and the steering of each wheel can be controlled independently, enabling more complex steering, such as stationary steering, crab steering, Ackermann steering, and other steering controls.

[0059] The upper frame 2000 is a gantry frame, forming a passage 2400 in the middle for tall crops to pass through. As the agricultural machinery vehicle travels in the field of tall crops, the tall crops enter the middle passage 2400 of the upper frame 2000 for processing including but not limited to harvesting.

[0060] The upper frame 2000 is vertically and rotatably connected to the rocker arms 1101 of the two sets of longitudinal double-section axles 1100 on the left and right sides respectively. A third active push rod 2001 is connected between the rocker arms 1101 and the upper frame 2000. The upper frame 2000 is driven to swing back and forth relative to the chassis 1000 through the third active push rod 2001. When the chassis climbs a slope, the upper frame 2000 is kept in an absolutely horizontal state.

[0061] The first active push rod 1103, the second active push rod 1104, and the third active push rod 2001 are preferably hydraulic push rods or electric push rods, with hydraulic push rods being preferred.

[0062] In an alternative embodiment, such as Figure 7As shown, each rocker arm 1101 has a pair of swing mounting brackets 1200 arranged on the left and right sides of the rocker arm 1101. The swing mounting brackets 1200 on both sides of the rocker arm 1101 are fixedly connected by flange shafts 1201. The rocker arm 1101 has through holes on the left and right sides of the middle and bearings 1105 are installed there. The flange shafts 1201 pass through the bearings 1105 and rotate with the bearings 1105. The top of the swing mounting bracket 1200 is provided with a frame mounting block 1202. The upper frame 2000 is fixedly connected to the frame mounting blocks 1202 of the two pairs of swing mounting brackets 1200 by bolts.

[0063] In one embodiment, the two sets of longitudinal double-section axles 1100 can be directly fixedly connected by the upper frame 2000. This requires the upper frame 2000 to have sufficient rigidity and strength, but it can simplify the mechanism.

[0064] In another embodiment, the upper frame 2000 is fixedly connected to the swing mounting brackets 1200 on both sides via a module connecting plate 1400, and the two sets of longitudinal double-section bridges 1100 are fixedly connected by the module connecting plate 1400. Figure 6 As shown, the modular connecting plate 1400 consists of two I-shaped plates 1401 and a middle connecting plate 1402. The tops of a pair of swing mounting brackets 1200 on both sides of each rocker arm 1101 are fixedly connected by an I-shaped plate 1401, and the I-shaped plates 1401 on the left and right sides are fixedly connected by the middle connecting plate 1402. The I-shaped plates 1401 and the swing mounting brackets 1200 are fixedly connected by bolts, and the two I-shaped plates 1401 and the middle connecting plate 1402 are fixedly connected by bolts. This invention adopts a modular design. After the two sets of longitudinal double-section bridges 1100 are assembled separately, they are connected together by the modular connecting plate 1400 to form a chassis, thus forming an integral chassis structure. This modular design not only facilitates assembly and disassembly during the production process, but also provides high flexibility in maintenance and component replacement. The use of the modular connection plate 1400 allows for quick connection between the upper frame 2000 and the rocker arm 1101, ensuring the stability and reliability of the chassis structure. Furthermore, the modular design allows for customized adjustments to the chassis to suit different operating environments and conditions, based on varying usage requirements.

[0065] In addition, the I-shaped plate 1401 connected to the swing mounting bracket 1200 adopts a special structural design. Since the I-shaped plate 1401 is used to fix the swing mounting bracket 1200 and the upper frame 2000, and the upper frame 2000 will swing back and forth under certain working conditions to ensure that the upper frame 2000 is in an absolutely horizontal position, the I-shaped plate 1401 will also swing back and forth accordingly. The grooves on both sides of the middle part of the I-shaped plate 1401 serve as reserved space for swinging, so that the I-shaped plate 1401 does not interfere with the rocker arm 1101 during the back and forth swinging process, making the swing amplitude of the upper frame 2000 larger.

[0066] In this invention, the intermediate connecting plate 1402 is a flat plate, such as... Figure 6 As shown, a U-shaped plate can be used, and the appropriate shape of the intermediate connecting plate 1402 is selected according to the operational requirements to connect the "I"-shaped plates 1401 on the left and right sides. When a U-shaped plate is used as the intermediate connecting plate 1402, the bottom height of the middle channel 2400 of the agricultural vehicle frame is reduced, thereby increasing the overall height of the channel 2400. Figure 10 As shown in Figure b; when an inverted U-shaped plate is used as the intermediate connecting plate 1402, the bottom height of the middle passage of the agricultural vehicle frame is raised, which can prevent the agricultural vehicle from knocking over seedlings during travel. Figure 10 As shown in c.

[0067] In an optional embodiment, the upper frame 2000 is provided with a left frame 2100 and a right frame 2200 respectively fixedly installed on the two "I"-shaped plates 1401. The left frame 2100 and the right frame 2200 are spaced apart and their tops are fixedly connected by a connecting top frame 2300. The left frame 2100 and the right frame 2200 each include two longitudinal support plates 2101 located on both sides of the longitudinal double-section bridge 1100. The top of the longitudinal support plate 2101 is vertically connected to an outer frame 2102, and a floor platform 2103 is connected between the two longitudinal support plates 2101.

[0068] like Figure 5 As shown, both the longitudinal support plate 2101 and the rocker arm 1101 are U-shaped metal frames with a downward-recessed center. This design lowers the chassis's center of gravity and improves vehicle stability. The floor platform 2103, located between the longitudinal support plates 2101, provides a stable working platform for operators and also serves as a mounting base for other vehicle components. The outer frame 2102 not only enhances the overall structural strength of the chassis but also serves as a mounting point for other equipment, such as the powertrain or auxiliary equipment. Furthermore, the design of the longitudinal support plates 2101 takes into account the need for easy maintenance and component replacement, ensuring high reliability of the vehicle during long-term use.

[0069] Each of the first active push rods 1103 and each of the second active push rods 1104 operates relatively independently to achieve complex steering, while the third active push rod 2001 operates synchronously and needs to cooperate to ensure that the upper frame 2000 is in an absolutely level state. The first active push rod 1103, the second active push rod 1104, and the third active push rod 2001 can be either electric push rods or hydraulic push rods.

[0070] In this invention, the third active push rods 2001 are arranged on the left and right sides of the rear side of the upper frame 2000. A pushing force is applied by a pair of third active push rods 2001 on the rear side of the upper frame 2000 to ensure the absolute horizontal state of the upper frame 2000 (e.g., ...). Figure 3 As shown in the diagram, the upper frame 2000 can also be controlled to be parallel to the slope using the third active push rod 2001. In another embodiment, a pair of third active push rods 2001 can be provided on the front and rear sides of the upper frame 2000 to adjust the attitude of the upper frame 2000. The two pairs of third active push rods 2001 distributed on the front and rear sides cooperate with each other, making the adjustment of the upper frame 2000 more precise and stable. The structural design of the third active push rod 2001 allows for flexible adjustment under different load conditions, ensuring the balance of the upper frame 2000 in various working states. Furthermore, the installation position of the third active push rod 2001 can be adjusted according to actual needs to adapt to different vehicle designs and usage requirements.

[0071] The advantages of the chassis 1000 of this invention are:

[0072] 1) An innovative double-joint steering drive axle was proposed, which can realize the swing of each wheel on the one hand, and the wheel track can be changed by coordinating the steering of the front and rear wheel sets on the other hand, thus increasing the applicability of the scenario;

[0073] 2) It adopts a double-section axle design, which can achieve greater angle adjustment of the wheels, and the rotation angle of each wheel can be adjusted independently. The double-section steering drive axles on both sides of the chassis, together with the all-wheel drive transmission system, can realize various steering controls such as stationary steering, crab steering, and Ackermann steering.

[0074] 3) Compared to traditional transverse bridges, the bridge in this application is a longitudinal bridge (longitudinal bridge), that is, located on both sides of the chassis in the direction of travel, so that the front middle section of the frame forms a passage for tall crops to pass through.

[0075] This layout allows the vehicle to better handle different road conditions during driving, improving stability and passability. Furthermore, the longitudinal bridge design helps improve space utilization, allowing for a larger interior space without changing the overall dimensions of the vehicle.

[0076] 4) The walking wheels are directly driven by the drive unit, which simplifies the mechanical structure. The drive unit directly drives the walking wheels, making the power transmission more direct, thereby improving the mobility and operating efficiency of the agricultural vehicle in tall crop fields.

[0077] like Figure 11-14 As shown, the structure of the harvesting implement 3000 will be described below.

[0078] The harvesting implement 3000 is equipped with a lower cutting device 3100, a straightening frame 3200, a conveying device 3300, a leaf stripping device 3400, and an upper cutting device 3500. The lower cutting device 3100 is installed at the bottom front side of the chassis 1000 to cut tall crops from the bottom. The straightening frame 3200 is installed in the passage, and the middle of the straightening frame 3200 has a straightening frame passage 3201 for tall crops to pass through. A "V"-shaped guide opening is provided at the front end of the straightening frame 3200. The conveying device 3300 for conveying tall crops backward and the leaf stripping device 3400 for stripping leaves are installed on the straightening frame 3200. The upper cutting device 3500 is installed at the top of the straightening frame 3200 to cut tall crops from the head.

[0079] In an optional embodiment, two sets of lower cutting devices 3100 are installed on the bottom front side of the chassis 1000. The lower cutting device 3100 includes a parallel four-bar linkage 3110, a lifter 3120, and a lower rotary cutter 3130. The parallel four-bar linkage 3110 is provided with parallel fixed bars 3111 and floating bars 3112. The fixed bars 3111 and floating bars 3112 are connected by two parallel connecting rods 3113. The fixed bars 3111 are fixed on the chassis 1000. The horizontal lower rotary cutter 3130 is fixedly installed on the floating bars 3112. The lifter 3120 is connected to the connecting rods 3113 to drive the floating bars 3112 to move up and down, thereby adjusting the height of the lower rotary cutter 3130, so as to cut the bottom of crops such as sugarcane from different heights.

[0080] A rearwardly and upwardly inclined guide plate 3140 is provided between the two lower rotary cutters 3130. The guide plate is fixedly connected to the floating bar 3112 via a connecting frame. The guide plate 3140 can provide guidance for the bottom of tall crops, so that the bottom of the tall crops entering the straightening frame channel 3201 is at the same height.

[0081] The upper cutting device 3500 is installed on the top of the gantry frame. The upper cutting device 3500 includes an upper rotary cutter. The upper cutting device 3500 can be turned on or off as needed. When harvesting sugarcane, the upper cutting device 3500 can be turned on to cut off the top end of the sugarcane where the sugar content is reduced.

[0082] The straightening frame 3200 has a left straightening frame 3210 and a right straightening frame 3220 spaced apart on the left and right sides. The front ends of the left straightening frame 3210 and the right straightening frame 3220 are provided with left guide frames 3211 and right guide frames 3221 that bend to the left and right sides respectively, forming a "V"-shaped guide opening between the left guide frames 3211 and right guide frames 3221. The rear end of the straightening frame 3200 is provided with a collection bin 3230 with a bottom plate. The front opening of the collection bin 3230 is connected to the straightening frame channel 3201. The sugarcane after being cut and stripped of leaves is centrally stored in the collection bin 3230.

[0083] In an optional embodiment, the conveying device 3300 consists of a first spiral conveying device 3310 mounted on the left guide frame 3211 and multiple second spiral conveying devices 3320 mounted on the right straightening frame 3220. Two rotating levers 3240 are installed at the front end of the right straightening frame 3220. Each rotating lever 3240 includes multiple elongated levers 3242 mounted circumferentially on a horizontal rotating disk 3241. Multiple rows of rubber plates 3212 in the front-back direction are installed on opposite sides of the left straightening frame 3210 and / or the right straightening frame 3220. A narrow gap is left between the rubber plates 3212 and the second spiral conveying devices 3320 for crops to pass through. The rubber plates protect tall crops during the backward conveying process. The leaf-stripping device 3400 is equipped with multiple rows of cutting blades 3410 that are tilted forward and backward on the left straightening frame 3210 and / or the right straightening frame 3220. During the backward conveying process, the tall crop passes through the multiple rows of cutting blades 3410 in sequence to cut off the excess stems and leaves on the tall crop.

[0084] It should be noted that the left and right mentioned above are relative concepts. In practical applications, the left and right directions can be replaced according to the needs, which does not limit the absolute left and right directions of this application.

[0085] If the tall crop is sugarcane, the sugarcane harvesting process is described below:

[0086] 1) During the operation, the bottom of the sugarcane is cut off by the two sets of lower cutting devices 3100 on the left and right sides at the bottom of the front of the operation vehicle.

[0087] 2) After the cut sugarcane enters the "V"-shaped guide opening at the front end of the straightening frame 3200, it is conveyed into the straightening frame channel 3201 of the straightening frame 3200 by the horizontally rotating long levers 3242 at both ends of the right guide frame 3221; at the same time, it is conveyed into the straightening frame channel 3201 of the straightening frame 3200 by the first spiral conveying device 3310 on the left guide frame 3211. Through the combined action of the first spiral conveying device 3310 and the rotating levers 3240, all the sugarcane entering the "V"-shaped guide opening is guided into the straightening frame channel 3201.

[0088] 3) The sugarcane that has entered the straightening frame channel 3201 is continued to be conveyed backward by the rotating second spiral conveyor 3320. During the backward conveying process, the sugarcane head is cut off by the rotating upper cutting device 3500. In addition, the excess leaves of the sugarcane trunk are cut off by the multi-row cutting blades 3410.

[0089] 4) Under the rotation of the second screw conveyor 3320, the sugarcane after leaf removal continues to be conveyed to the collection bin 3230 for centralized storage.

[0090] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A tall-stalk crop handling vehicle, comprising a chassis (1000), a frame (2000), and harvesting implements (3000), characterized in that, The chassis (1000) includes two sets of longitudinal double-section axles (1100) arranged symmetrically on the left and right sides. Both ends of the two sets of longitudinal double-section axles (1100) are equipped with steerable wheels (1300). The upper frame (2000) is a gantry frame. The upper frame (2000) is connected to two sets of longitudinal double-section bridges (1100) on the left and right sides respectively. The upper frame (2000) and the chassis (1000) are provided with a passage for tall crops to pass through. The harvesting implement (3000) is equipped with a lower cutting device (3100), a straightening frame (3200), a conveying device (3300), and a leaf stripping device (3400). The lower cutting device (3100) is installed on the bottom front side of the chassis (1000) to cut tall crops from the bottom. The straightening frame (3200) is installed in the channel. The middle part of the straightening frame (3200) is provided with a straightening frame channel (3201) for tall crops to pass through. A "V"-shaped guide opening is provided at the front end of the straightening frame (3200). The straightening frame (3200) is equipped with a conveying device (3300) for conveying tall crops backward and a leaf stripping device (3400) for stripping leaves.

2. The tall crop handling vehicle as described in claim 1, characterized in that, The straightening frame (3200) is provided with a left straightening frame (3210) and a right straightening frame (3220) that are spaced apart on the left and right sides. The rear end of the straightening frame (3200) is equipped with a material collection bin (3230) with a bottom plate, and the front opening of the material collection bin (3230) is connected to the straightening frame channel (3201); The front ends of the left straightening frame (3210) and the right straightening frame (3220) are provided with left guide frame (3211) and right guide frame (3221) that bend to the left and right respectively, and a "V" shaped guide opening is formed between the left guide frame (3211) and the right guide frame (3221).

3. The tall crop handling vehicle as described in claim 2, characterized in that, The conveying device (3300) consists of a first spiral conveying device (3310) installed on the left guide frame (3211) and a second spiral conveying device (3320) installed on the right straightening frame (3220); Two rotating levers (3240) are installed at the front end of the right straightening frame (3220). The rotating levers (3240) include multiple long levers (3242) on the horizontal rotating disk (3241) and circumferentially mounted on the rotating disk (3241). Multiple rows of rubber plates (3212) in the front-to-back direction are installed on opposite sides of the left straightening frame (3210) and / or the right straightening frame (3220). The leaf stripping device (3400) is provided with multiple rows of cutting blades (3410) installed at an angle to the front and back on the left straightening frame (3210) and / or the right straightening frame (3220).

4. The tall crop handling vehicle as described in claim 1, characterized in that, Two sets of lower cutting devices (3100) are installed on the bottom front side of the chassis (1000). The lower cutting device (3100) includes a parallel four-bar linkage (3110), a lifter (3120), and a lower rotary cutter (3130). The parallel four-bar linkage (3110) is provided with parallel fixed bars (3111) and floating bars (3112). The fixed bars (3111) and floating bars (3112) are connected by two parallel connecting rods (3113). The fixed bars (3111) are fixed on the chassis (1000). The horizontal lower rotary cutter (3130) is fixedly installed on the floating bars (3112). The lifter (3120) is connected to the connecting rods (3113) to drive the floating bars (3112) to move up and down. A guide plate (3140) inclined backward and upward is provided between the two lower rotary cutters (3130), and the guide plate (3140) is fixedly connected to the floating bar (3112) through a connecting frame; An upper cutting device (3500) is installed on top of the gantry frame, and the upper cutting device (3500) includes an upper rotary cutter.

5. A tall crop handling vehicle as described in claim 1, characterized in that, The longitudinal double-section bridge (1100) is provided with a rocker arm (1101). A movable connecting rod (1102) is rotatably installed at both ends of the rocker arm (1101). One end of the movable connecting rod (1102) is horizontally rotatably connected to the rocker arm (1101). A first active push rod (1103) is connected between the movable connecting rod (1102) and the rocker arm (1101). The other end of the movable connecting rod (1102) is horizontally rotatably installed with a traveling wheel (1300) with a drive component (1301). A second active push rod (1104) is connected between the movable connecting rod (1102) and the traveling wheel (1300). The upper frame (2000) is vertically and rotatably connected to the rocker arms (1101) of two sets of longitudinal double-section bridges (1100) on the left and right sides respectively. A third active push rod (2001) is connected between the rocker arms (1101) and the upper frame (2000). The first active push rod (1103), the second active push rod (1104), and the third active push rod (2001) are electric push rods or hydraulic push rods, and the driving component (1301) is a drive motor or a drive motor.

6. A tall crop handling vehicle as described in claim 5, characterized in that, Each rocker arm (1101) has a pair of swing mounting brackets (1200) arranged on the left and right sides of the rocker arm (1101) in the middle. The swing mounting brackets (1200) on both sides of the rocker arm (1101) are fixedly connected by a flange shaft (1201). The rocker arm (1101) has through holes on the left and right sides in the middle and is equipped with bearings (1105). The flange shaft (1201) passes through the bearings (1105) and rotates with the bearings (1105). The top of the swing mounting bracket (1200) is provided with a frame mounting block (1202), and the upper frame (2000) is fixedly connected to the frame mounting blocks (1202) of the two pairs of swing mounting brackets (1200) by bolts.

7. A tall crop handling vehicle as described in claim 6, characterized in that, The upper frame (2000) is fixedly connected to the swing mounting brackets (1200) on both sides via the module connecting plate (1400); The module connection plate (1400) consists of two "I" shaped plates (1401) and a middle connection plate (1402). The tops of a pair of swing mounting brackets (1200) on both sides of each rocker arm (1101) are fixedly connected by an "I" shaped plate (1401), and the "I" shaped plates (1401) on the left and right sides are fixedly connected by the middle connection plate (1402). The I-shaped plate (1401) and the swing mounting bracket (1200) are fixedly connected by bolts, and the two I-shaped plates (1401) and the intermediate connecting plate (1402) are fixedly connected by bolts. The intermediate connecting plate (1402) is a flat plate or a U-shaped plate, which is installed upright or upside down between two I-shaped plates (1401).

8. A tall crop handling vehicle as described in claim 6, characterized in that, The upper frame (2000) is provided with a left frame (2100) and a right frame (2200) respectively fixedly installed on the two sides of the "I" shaped plate (1401). There is a gap between the left frame (2100) and the right frame (2200) and their tops are fixedly connected by a connecting top frame (2300). The left frame (2100) and the right frame (2200) both include two longitudinal support plates (2101) located on both sides of the longitudinal double-section axle (1100). The top of the longitudinal support plate (2101) is vertically connected to the outer frame (2102), and the floor platform (2103) is connected between the two longitudinal support plates (2101). Both the longitudinal support plate (2101) and the rocker arm (1101) are U-shaped metal frames with a downward-recessed center.

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