Bidirectional clamping and conveying device of sugarcane cutting and spreading machine

Abstract

The utility model discloses a bidirectional clamping and conveying device of a sugarcane cutting and spreading machine. The clamping and conveying device comprises a fixed rack, a movable rack and a driving device, the clamping, conveying and lifting frame is arranged on the fixed rack in a liftable manner; the U-shaped frame comprises a left U-shaped frame body and a right U-shaped frame body, the left U-shaped frame body and the right U-shaped frame body are connected with the clamping conveying lifting frame and located on the left side and the right side of the front end of the frame respectively, and a sugarcane outlet is formed in a U-shaped groove of the U-shaped frame; a front clamping conveying rubber roller chain group; and the rear clamping reversing device comprises a rear clamping reversing mechanism and a first rear clamping conveying shifting tooth chain. According to the clamping and conveying device of the bidirectional sugarcane cutting and spreading machine, cut-off sugarcanes are conveyed through the clamping and conveying shifting tooth chain to move outwards, and are conveyed to the side, where sugarcane ridges are harvested, of the machine under the conveying of the bidirectional clamping and conveying device. The bidirectional clamping and conveying mechanism is adjusted to move left and right in the horizontal direction, and the sugarcane is cut and laid to the left side or the right side according to the terrain.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, and in particular to a clamping and conveying device for a bidirectional sugarcane harvester. Background Technology

[0002] Since the sugarcane growing areas in Guangxi and Yunnan are primarily hilly, with 70% of the plots being small and scattered, the existing segmented and whole-stalk combine harvesters cannot meet the harvesting quality requirements of sugar companies and sugarcane farmers. Promoting a phased harvesting model combining "high-efficiency harvesting + low loss rate + high-efficiency impurity removal" is a suitable mechanized harvesting method for the geographical environment of Guangxi and Yunnan, easily accepted by sugar companies and sugarcane farmers. It is an effective new mechanized harvesting model for sugarcane harvesting in hilly areas, and there is an urgent market demand for it.

[0003] Existing sugarcane harvesters and spreaders use unidirectional conveying mechanisms, which means that they can only lay sugarcane in one direction and cannot lay it on both sides. After cutting one row, they need to reverse back and drive a distance empty or go around the outer circle to harvest, which is inefficient.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this utility model is to provide a clamping and conveying device for a bidirectional sugarcane harvester, thereby overcoming the shortcomings of sugarcane harvesters that can only convey in one direction, can only lay down sugarcane in one direction after cutting, and have low operating efficiency.

[0006] To achieve the above objectives, this utility model provides a bidirectional sugarcane harvester clamping and conveying device, comprising: a fixed frame, which houses the front end of the harvester's frame; a clamping and conveying lifting frame, which is vertically mounted on the fixed frame; a U-shaped frame, including a left U-shaped frame and a right U-shaped frame, which are respectively connected to the clamping and conveying lifting frame and located on the left and right sides of the front end of the frame, with the U-shaped groove of the U-shaped frame serving as the sugarcane outlet; and a front clamping and conveying rubber roller chain assembly, including a left rubber roller chain and a right rubber roller chain, which are arranged side-by-side opposite each other on the U-shaped frame, located above the U-shaped groove, with the distance between the left and right rubber roller chains forming the sugarcane inlet; The rear clamping and reversing device includes a rear clamping and reversing mechanism and a first rear clamping and conveying toothed chain. The rear clamping and reversing mechanism is horizontally movable on the clamping and conveying lifting frame. The first rear clamping and conveying toothed chain is located on the rear clamping and reversing mechanism, behind the front clamping and conveying rubber roller chain group, and forms an upper left sugarcane conveying channel and an upper right sugarcane conveying channel between the left rubber roller chain and the right rubber roller chain. The upper left sugarcane conveying channel and the upper right sugarcane conveying channel are used for horizontal conveying of sugarcane in a vertical state. When the rear clamping and reversing mechanism moves to the left beyond the left U-shaped frame, the cut sugarcane is laid to the left. When the rear clamping and reversing mechanism moves to the right beyond the right U-shaped frame, the cut sugarcane is laid to the right.

[0007] Preferably, in the above technical solution, the U-shaped frame is provided with an auxiliary clamping telescopic mechanism, which includes two auxiliary clamping guides. The two auxiliary clamping guides are respectively arranged on the U-shaped frame from left to right and opposite to each other by spring members, and are respectively arranged directly below the front clamping conveying rubber roller chain group. The two auxiliary clamping guides form a sugarcane inlet channel between them. The rear clamping reversing mechanism is provided with a second rear clamping conveying tooth chain, which is located behind the clamping guides and forms a lower left conveying channel and a lower right conveying channel with the auxiliary clamping guides. The lower left sugarcane conveying channel and the lower right sugarcane conveying channel are used for horizontal conveying of sugarcane in a vertical state.

[0008] Preferably, in the above technical solution, the auxiliary clamping guide is a rod or a guide groove with a groove; the spring is an internal spring telescopic cylinder.

[0009] Preferably, in the above technical solution, the auxiliary clamping guide is provided with arc-shaped guide plates on both sides of the sugarcane entry channel.

[0010] Preferably, in the above technical solution, the sugarcane outlet of the U-shaped frame is provided with an inclined plate and a curved guide plate on the outside.

[0011] Preferably, in the above technical solution, the rear clamping reversing mechanism includes: a frame; a rack shaft horizontally disposed on the frame, with a bushing sleeved on the rack shaft; a mounting base connected to the clamping conveying lifting frame, with the bushing sleeve fixedly connected to the mounting base; and a drive assembly including a power component and a gear, the gear being connected to the output end of the power component, the gear being correspondingly disposed to the rack shaft and meshing with each other to drive the frame to move left and right in the horizontal direction.

[0012] Preferably, in the above technical solution, the frame is provided with a support rod, which is arranged parallel to the rack shaft, and the U-shaped frame is provided with at least one rolling roller, with the support rod disposed on the rolling roller.

[0013] Preferably, in the above technical solution, the rack shaft is a hexagonal rack shaft, the bushing is an internal hexagonal bushing; the power component is a hydraulic motor; and the rack of the rack shaft is located on the lower surface of the shaft body.

[0014] Preferably, in the above technical solution, the rear clamping reversing mechanism is provided with an auxiliary dial, and there are at least two auxiliary dials located above the first clamping and conveying tooth chain; wherein, during the cutting and spreading operation, at least one of the auxiliary dials is located at the discharge end of the tooth straightening mechanism.

[0015] Preferably, in the above technical solution, the auxiliary dial includes a rotating shaft, a fixed dial, and multiple rubber rods. The rotating shaft is disposed on the rear clamping and reversing mechanism, the fixed dial is disposed on the rotating shaft, and the multiple stirring rods are evenly distributed around the fixed dial.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The present invention relates to a bidirectional sugarcane cutter and spreader clamping and conveying device. The cut sugarcane moves across the sugarcane rows, and the cut sugarcane is conveyed outward by the clamping and conveying toothed chain. Under the transmission of the bidirectional clamping and conveying device, the sugarcane is conveyed to one side of the harvested sugarcane ridge, allowing the sugarcane to be conveyed beyond the U-shaped frame and neatly laid horizontally on the empty sugarcane field after harvesting. By adjusting the bidirectional clamping and conveying mechanism to move left and right in the horizontal direction, the cut sugarcane can be laid on the left or right side according to the terrain.

[0018] (2) Using the novel conveying device, this sugarcane harvester can harvest sugarcane along an S-shaped trajectory, solving the problem of low efficiency caused by existing sugarcane harvesters requiring them to reverse and travel a distance empty after harvesting one row on one side, or to harvest around the outer ring. The clamping conveying device can be adjusted in height according to the left and right furrow heights of the sugarcane to be harvested. The left and right conveying distances are adjusted by the rear clamping reversing mechanism, controlling the direction of movement of the clamping conveying chain, thereby controlling the direction in which the sugarcane is laid after cutting.

[0019] (3) The rear clamping mechanism uses a motor drive to move the gear rack and pinion horizontally to transport sugarcane left and right, which can reduce the width of the machine and achieve a compact and miniaturized bidirectional harvesting mechanism. The front clamping uses wear-resistant rubber rollers to squeeze and clamp the sugarcane, keeping it in a clamped state without damaging it; the rear clamping structure uses a chain-driven toothed structure, which transports the sugarcane left and right in a flexible clamping state. The rear clamping and conveying mechanism adopts a 2-layer chain toothed structure, which can better and more stably clamp and transport sugarcane, and can harvest and transport both tall and short sugarcane. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the bidirectional sugarcane cutter clamping and conveying device installed on the cutter according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the bidirectional sugarcane harvester clamping and conveying device according to this utility model;

[0022] Figure 3 This is a side view of the clamping and conveying device of the bidirectional sugarcane harvester according to the present invention;

[0023] Figure 4 This is a structural schematic diagram of the rear clamping and reversing mechanism in the bidirectional sugarcane harvester clamping and conveying device according to this utility model;

[0024] Figure 5 This is a structural diagram of the rear clamping reversing mechanism in the rightward movement completed state of the bidirectional sugarcane harvester clamping and conveying device according to this utility model;

[0025] Figure 6 This is a structural schematic diagram of the auxiliary clamping telescopic mechanism in the bidirectional sugarcane harvester clamping and conveying device according to this utility model; Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, it should be understood that the scope of protection of this utility model is not limited to the specific embodiments.

[0027] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0028] like Figures 1 to 6 As shown, a bidirectional sugarcane harvester clamping and conveying device according to a specific embodiment of this utility model includes a fixed frame 1, a clamping and conveying lifting frame 2, a U-shaped frame 3, a front clamping and conveying rubber roller chain group 4, and a rear clamping reversing device 5. The fixed frame 1 is provided with the front end of the harvester's frame 6.

[0029] The bidirectional clamping and conveying device includes a fixed frame 1, a clamping and conveying lifting frame 2, a U-shaped frame 3, a front clamping and conveying rubber roller chain 4, and a rear clamping reversing device 5. The fixed frame 1 is located at the front end of the chassis 6. Vertical guide rails are provided on both sides of the fixed frame 1. The clamping and conveying lifting frame 2 is vertically mounted on the fixed frame 1, located on the guide rails, and connected to a driving component, which is a hydraulic cylinder or a pneumatic cylinder. In this embodiment, a hydraulic cylinder is used, which hydraulically drives the clamping and conveying lifting frame 2 to move vertically up and down on the guide rails. The distance from the clamping and conveying lifting frame 2 to the ground can be adjusted as a whole according to terrain conditions or work requirements. A U-shaped frame 3 is bolted to the clamping and conveying lifting frame 2. The U-shaped frame 3 includes a left U-shaped frame 31 and a right U-shaped frame 32, which are respectively connected to the clamping and conveying lifting frame 1 and located on the left and right sides of the front end of the chassis. The left U-shaped frame 31 and the right U-shaped frame 32 have the same structure. Taking the right U-shaped frame 32 as an example, the opening of the right U-shaped frame faces upward and the U-shaped groove faces downward, and it is set close to the body surface. The U-shaped groove of the frame is the sugarcane outlet 33.

[0030] The front clamping conveyor roller chain assembly 4 includes a left roller chain 41 and a right roller 42. The left roller chain 41 and the right roller 42 have the same structure and installation method, with the rollers on the left roller chain 41 placed vertically. The left roller chain 41 and the right roller chain 42 are arranged side-by-side on the U-shaped frame 1, facing each other. That is, the left roller chain 41 is installed on the left U-shaped frame 31, and the right roller chain 42 is installed on the right U-shaped frame 32, with the left roller chain 41 and the right roller chain 42 arranged side-by-side on the same horizontal line, located above the U-shaped groove of the U-shaped frame, near the discharge end of the tooth-aligning mechanism 2. The space between the left roller chain 41 and the right roller 42 forms the sugarcane inlet, through which the cut sugarcane enters the conveying channel.

[0031] A rear clamping reversing device 5 is provided on the rear side of the front clamping conveyor roller chain assembly 4. The rear clamping reversing device 5 includes a rear clamping reversing mechanism 51 and a first rear clamping conveying toothed chain 52. The rear clamping reversing mechanism 51 is mounted on the clamping conveying lifting frame 1 and can move horizontally left and right. The first rear clamping conveying toothed chain 52 is mounted on the rear clamping reversing mechanism 51 and is located on the rear side of the front clamping conveyor roller chain assembly 4, forming an upper left sugarcane conveying channel and an upper right sugarcane conveying channel with the left roller chain 41 and the right roller chain 42. The teeth of the first rear clamping conveying toothed chain 52 are set towards the side of the front clamping conveyor roller chain assembly 4. The front clamping uses wear-resistant rollers to squeeze and clamp the sugarcane, keeping the sugarcane in a clamped state without damaging or breaking it. The rear clamping structure uses a chain-carrying toothed structure, which conveys the sugarcane left and right through the teeth in a flexible clamping state.

[0032] During transport, the sugarcane is in a vertical position and enters through the inlet between the left rubber roller chain 41 and the right rubber roller 42. Depending on the actual terrain, the cut sugarcane is laid to the left or right. When laying to the left, the rear clamping and reversing mechanism 51 moves the clamping and conveying lifting frame 1 to the left, extending beyond the left U-shaped frame 31. Because the rubber rollers on the left and right rubber roller chains 41 and 42 are vertically aligned, the sugarcane moves horizontally in the upper left conveying channel while remaining vertical. After being conveyed to the left U-shaped frame, it exits through the outlet of the U-shaped trough and is laid to the left. However, when laying to the right, the operation is similar, except that the rear clamping and reversing mechanism 51 moves the clamping and conveying lifting frame 1 to the right, extending beyond the right U-shaped frame 32.

[0033] Preferably, the U-shaped frame 3 is provided with an auxiliary clamping telescopic mechanism 7, which includes two auxiliary clamping guides. Preferably, the auxiliary clamping guides are rods or guide grooves with grooves. In this embodiment, guide grooves with grooves are selected. That is, the auxiliary clamping telescopic mechanism 7 includes two auxiliary clamping guide grooves, namely a left guide groove 71 and a right guide groove 72. The left guide groove 71 is installed on the left U-shaped frame 31 by a spring member 73, and the right guide groove 72 is installed on the right U-shaped frame 32 by a spring member 73. Preferably, two spring members are provided on each side to improve the stability of the connection. The left guide groove 71 is positioned directly below the left rubber roller chain 41, and the right guide groove 72 is positioned directly below the right rubber roller chain 42. The left guide groove 71 and the right guide groove 72 are arranged side by side on the same horizontal line, with a distance between them, forming a sugarcane entry channel 74. The sugarcane inlet between the sugarcane inlet channel 74, the left rubber roller chain 41, and the right rubber roller 42, and the sugarcane outlet of the straightening mechanism 2 are in the same vertical direction. The rear clamping reversing mechanism 51 is equipped with a second clamping and conveying toothed chain 53, which is located behind the auxiliary clamping guide groove and below the first clamping and conveying toothed chain 52. The second clamping and conveying toothed chain 53, together with the left guide groove 71 and the right guide groove 72, forms a left-side conveying channel and a lower right-side conveying channel.

[0034] During transport, the sugarcane is held vertically. The lower and middle parts of the sugarcane enter through the inlet 74 between the left guide trough 71 and the right guide trough 72. When transporting sugarcane to the left, the lower and middle parts of the sugarcane are moved by the second clamping conveyor chain 53 and placed in the lower left sugarcane transport channel. They are then conveyed out by the second clamping conveyor chain 53 and laid to the left. During transport, the upper and middle parts of the sugarcane are clamped and transported by the left rubber roller chain 41 and the first clamping conveyor chain 52, while the lower and middle parts are clamped and transported by the left guide trough 71 and the second clamping conveyor chain 53, which improves the stability of the sugarcane transport process. The working principle of transporting sugarcane to the right is the same as that of transporting sugarcane to the left. Since the left guide trough 71 and the left U-shaped frame 31 are connected by a spring 73, when the left guide trough 71 clamps the sugarcane, the clamping force is just right to clamp the sugarcane without damaging it, thus helping to smoothly deliver the sugarcane beyond the U-shaped frame.

[0035] Preferably, the spring component is an internal spring telescopic cylinder. The internal spring telescopic cylinder 73 includes a cylinder body 731 and a cylinder cover 732. A cavity is provided in the middle of the cylinder body. One end of the cylinder body has a cylinder cover, and the other end has an opening. The spring 733 is disposed within the cavity of the cylinder body 731, with one end fixed to the cylinder cover 732 and the other end connected to a telescopic shaft 734. The other end of the telescopic shaft 734 extends outward from the opening end of the cylinder body. During installation, the cylinder cover of the internal spring telescopic cylinder is fixed to the U-shaped frame 3, and the telescopic shaft 734 is connected to the auxiliary clamping guide.

[0036] Preferably, arc-shaped guide plates 75 are provided on the left and right sides of the sugarcane inlet channel 74 of the auxiliary clamping guide. The arc-shaped guide plates 75 facilitate guiding the sugarcane into the conveyor without damaging the sugarcane.

[0037] Preferably, the sugarcane outlet of the U-shaped frame is provided with an inclined plate and slope. The left U-shaped frame 31 and the right U-shaped frame 32 have the same structure. Taking the right U-shaped frame as an example, the sugarcane outlet 33 of the right U-shaped frame 32 is provided with an inclined plate and slope. The U-shaped frame adopts an inclined plate and slope method to allow sugarcane to pass through better and prevent blockage at this point. An arc-shaped guide plate 34 is provided on the outer side. The arc-shaped guide plate 34 plays a limiting role in the sugarcane. The sugarcane is discharged from the sugarcane outlet 33, and the guide plate 34 restricts and gathers the sugarcane in the middle, so that it does not scatter too much when it falls over.

[0038] Preferably, the rear clamping reversing mechanism 51 includes a frame 511, a rack shaft 512, a mounting base 513, and a drive assembly. The rack shaft 512 is horizontally mounted on the frame 511, and a bushing 514 is fitted onto the rack shaft 512. Preferably, the rack shaft is a hexagonal rack shaft, and the bushing is an internal hexagonal bushing. The rack of the rack shaft is located on the lower surface of the shaft body. Using a hexagonal rack shaft for the rack shaft 512 makes it less prone to movement during equipment operation, ensuring smooth operation. The bushing 514 is fixedly connected to the mounting base 513, and the mounting base 513 is connected to the clamping and conveying lifting frame 1. The drive assembly includes a power component 515 and a gear 516. Preferably, the power component is a hydraulic motor, and the gear 516 is connected to the output end of the hydraulic motor. The gear 516 is correspondingly arranged with the rack shaft 512 and meshes with the rack shaft 512 for transmission. The hydraulic motor drives the gear 516 to rotate, and the gear 516 meshes with the rack shaft 512 to drive the frame 511 to move left and right in the horizontal direction.

[0039] The bidirectional clamping and conveying device is equipped with a rear clamping reversing mechanism 51. This mechanism consists of a hexagonal rack and pinion shaft, an internal hexagonal bushing, gears, a hydraulic motor, and a hydraulic motor mounting base. The hydraulic motor is bolted to the clamping and conveying lifting frame via the mounting base. Both ends of the hexagonal rack and pinion shaft are mounted on the rear clamping and conveying chain support. The motor drives the gear and rack to move left and right, adjusting the movement of the rear clamping and conveying chain, thus transporting sugarcane left and right. For example, if sugarcane needs to be transported to the right, the rear clamp is moved to the right beyond the U-shaped frame, allowing the sugarcane to be transported beyond the U-shaped frame and laid out onto the ground, preventing the tracks from crushing the sugarcane. The left and right lateral movement device primarily ensures a sufficient sugarcane delivery distance and, secondly, allows for retraction when the machine needs to be moved away from the field, reducing the machine's width and achieving a compact and miniaturized bidirectional harvesting mechanism.

[0040] Preferably, the frame 511 is provided with a support rod 516, which is arranged parallel to the rack shaft 512 and located below the rack shaft 512. The U-shaped frame 3 is provided with at least one rolling roller 517. This embodiment provides two rolling rollers. The support rod 56 is mounted on the rolling roller 517. When the frame 511 moves left and right in the horizontal direction, the rolling roller 517 provides a certain degree of support to the frame 51 without hindering its movement, thus ensuring smooth movement.

[0041] Preferably, the rear clamping reversing mechanism 51 is provided with auxiliary dials 54, and there are at least two auxiliary dials, in this embodiment there are two. The two auxiliary dials 54 are provided on the rear clamping reversing mechanism 51, located above the first clamping and conveying toothed chain 52. The two auxiliary dials are distributed at a certain distance apart, and during the cutting and spreading operation, one of the auxiliary dials is located at the discharge end of the toothed straightening mechanism 2. Preferably, the auxiliary dial 54 includes a rotating shaft 541, a fixed dial 542, and multiple rubber rods 543, in this embodiment there are four stirring rods 543. The rotating shaft 541 is provided on the rear clamping reversing mechanism 51, the fixed dial 542 is provided on the rotating shaft 541, and the multiple stirring rods 543 are evenly distributed around the fixed dial 542 in a cross-shaped arrangement.

[0042] The main function of the auxiliary dial is to assist the sugarcane in being transported normally to the clamping and conveying area by rotating the rubber rod. There are two auxiliary dials. After the rear clamping is reversed, one dial will be in the middle of the entire clamping and conveying belt to assist in pushing the sugarcane into the clamping and conveying direction. The other set will be at the rear of the conveying direction to assist in pushing the sugarcane out of the U-shaped frame so that the sugarcane can smoothly pass out of the track walking area and be laid normally on the ground.

[0043] The clamping and conveying mechanism of this invention is installed on a sugarcane cutter and works in conjunction with other components of the cutter. The frame 6 also includes a double-helix mechanism 8, a tooth-aligning mechanism 9, a cutting disc mechanism 10, and a sugarcane tip shredding mechanism 11. The double-helix mechanism 8 is located at the front of the frame 6 and is used to lift and straighten the sugarcane. The tooth-aligning mechanism 9 is located above the double-helix mechanism 8 and is used to straighten the sugarcane and convey it to the next process. The cutting disc mechanism 10 is located below the tooth-aligning mechanism 9 and is used to cut the root of the sugarcane. A bidirectional clamping and conveying device is located behind the tooth-aligning mechanism 9 and above the cutting disc mechanism 10, used to receive the sugarcane conveyed by the tooth-aligning mechanism and, depending on the terrain, to lay the cut sugarcane to the left or right. The sugarcane tip shredding mechanism 11 is located above the tooth-aligning mechanism 9 and is used to remove the sugarcane tip.

[0044] The working principle of this bidirectional cutting and spreading machine is as follows: The machine travels across sugarcane rows. During its movement, the front double-helix mechanism 8 lifts the sugarcane that has fallen to the sides of the row. The lifted sugarcane, along with the upright sugarcane, is conveyed by the toothed chain on the toothed straightening mechanism 9 to the bidirectional clamping and conveying device. Simultaneously, the sugarcane is cut off by the cutting disc 10 on the ridge surface, and the tail ends are struck and crushed by the tail end crushing mechanism 11 and scattered back into the field. The cut sugarcane is conveyed outward by the clamping and conveying toothed chain and, under the transmission of the bidirectional clamping and conveying device, is transported to one side of the harvested sugarcane ridge, allowing the sugarcane to be conveyed beyond the U-shaped frame and neatly laid horizontally on the empty sugarcane field where the harvested sugarcane has been harvested. By adjusting the horizontal movement of the bidirectional clamping and conveying device, the cut sugarcane can be laid on the left or right side according to the terrain.

[0045] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A bidirectional sugarcane harvester clamping and conveying device, characterized in that, The clamping and conveying device includes: A fixed frame, which has the front end of the paving machine's chassis; A clamping and conveying lifting frame is mounted on the fixed frame in a liftable manner; The U-shaped frame includes a left U-shaped frame and a right U-shaped frame. The left U-shaped frame and the right U-shaped frame are respectively connected to the clamping, conveying and lifting frame and are located on the left and right sides of the front end of the frame. The U-shaped groove of the U-shaped frame is the sugarcane outlet. A front clamping conveyor roller chain assembly includes a left roller chain and a right roller chain, which are arranged side-by-side opposite each other on the U-shaped frame, located above the U-shaped groove. The distance between the left and right roller chains forms the sugarcane inlet; and The rear clamping reversing device includes a rear clamping reversing mechanism and a first rear clamping conveying toothed chain. The rear clamping reversing mechanism is horizontally movable on the clamping conveying lifting frame. The first rear clamping conveying toothed chain is located on the rear clamping reversing mechanism, behind the front clamping conveying rubber roller chain group, and forms an upper left sugarcane conveying channel and an upper right sugarcane conveying channel between the left rubber roller chain and the right rubber roller chain. The upper left sugarcane conveying channel and the upper right sugarcane conveying channel are used for horizontal conveying of sugarcane in a vertical state. When the rear clamping and reversing mechanism moves to the left beyond the left U-shaped frame, the cut sugarcane is laid to the left. When the rear clamping and reversing mechanism moves to the right beyond the right U-shaped frame, the cut sugarcane is laid to the right.

2. The bidirectional sugarcane harvester clamping and conveying device according to claim 1, characterized in that, The U-shaped frame is equipped with an auxiliary clamping telescopic mechanism, which includes two auxiliary clamping guides. The two auxiliary clamping guides are respectively arranged on the U-shaped frame from the left and right by springs, and are respectively arranged directly below the front clamping conveying rubber roller chain group. The two auxiliary clamping guides form a sugarcane inlet channel. The rear clamping reversing mechanism is equipped with a second rear clamping conveying toothed chain, which is located behind the clamping guides and forms a lower left sugarcane conveying channel and a lower right sugarcane conveying channel with the auxiliary clamping guides. The lower left sugarcane conveying channel and the lower right sugarcane conveying channel are used for horizontal conveying of sugarcane in a vertical state.

3. The bidirectional sugarcane harvester clamping and conveying device according to claim 2, characterized in that, The auxiliary clamping guide is a rod or a guide groove with a groove; the spring is an internal spring telescopic cylinder.

4. The bidirectional sugarcane harvester clamping and conveying device according to claim 2, characterized in that, The auxiliary clamping guide has arc-shaped guide plates on both sides of the sugarcane entry channel.

5. The bidirectional sugarcane harvester clamping and conveying device according to claim 1, characterized in that, The U-shaped frame has an inclined plate and slope at the sugarcane outlet, with an arc-shaped guide plate on the outside.

6. The bidirectional sugarcane harvester clamping and conveying device according to claim 1, characterized in that, The rear clamping reversing mechanism includes: Frame; A rack shaft is horizontally mounted on the frame, and a bushing is fitted onto the rack shaft; A mounting base, which is connected to the clamping and conveying lifting frame, and a bushing, which is fixedly connected to the mounting base; and The drive assembly includes a power component and a gear. The gear is connected to the output end of the power component. The gear is correspondingly arranged with the rack shaft and meshes with it to drive the frame to move left and right in the horizontal direction.

7. The bidirectional sugarcane harvester clamping and conveying device according to claim 6, characterized in that, The frame is provided with a support rod, which is arranged parallel to the rack shaft. The U-shaped frame is provided with at least one rolling roller, and the support rod is located on the rolling roller.

8. The bidirectional sugarcane harvester clamping and conveying device according to claim 6, characterized in that, The rack shaft is a hexagonal rack shaft, and the bushing is an internal hexagonal bushing; the power component is a hydraulic motor; the rack of the rack shaft is located on the lower surface of the shaft body.

9. The bidirectional sugarcane harvester clamping and conveying device according to claim 1, characterized in that, The rear clamping reversing mechanism is provided with auxiliary dials, and there are at least two auxiliary dials located above the first rear clamping conveying tooth chain; wherein, during the cutting and spreading operation, at least one of the auxiliary dials is located at the discharge end of the tooth straightening mechanism.

10. The bidirectional sugarcane harvester clamping and conveying device according to claim 9, characterized in that, The auxiliary dial includes a rotating shaft, a fixed dial, and multiple rubber rods. The rotating shaft is mounted on the rear clamping and reversing mechanism, the fixed dial is mounted on the rotating shaft, and the multiple rubber rods are evenly distributed around the fixed dial.

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