Ear conveying device and hinged chassis corn harvester

Abstract

The invention discloses an ear conveying device and a hinged chassis corn harvester. Comprising a front frame, a rear frame hinged to the front frame, a conveying assembly rotatably arranged on the front frame in the vertical direction and used for conveying clusters, a rotation driving assembly arranged on the front frame, connected with the free end of the conveying assembly and used for driving the conveying assembly to vertically rotate relative to the front frame, and a supporting assembly arranged on the rear frame. The supporting assembly is used for supporting the free end of the conveying assembly, and when the front frame and the rear frame rotate relatively, the supporting assembly is in sliding fit with the conveying assembly so as to drive the conveying assembly to vertically rotate relative to the front frame. According to the scheme, the posture of the conveying assembly is actively adjusted through the driving assembly during grain unloading so as to guarantee smooth grain unloading, and compared with the prior art, the posture of the conveying assembly can be adjusted in a self-adaptive mode according to the turning angles of the front frame and the rear frame so as to meet the operation requirement of the hinged chassis corn harvester, and the working efficiency is improved. And the harvesting efficiency of the hinged chassis corn harvester is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, in particular, to a corn ear conveying device. In addition, the present invention also relates to an articulated chassis corn harvester comprising the corn ear conveying device. Background Art

[0002] Articulated chassis technology is a special frame design that allows the front and rear parts of the vehicle to be connected by an articulated device. As a result, the articulated chassis is able to achieve a smaller turning radius, which is particularly useful in narrow or complex terrain. It enables the vehicle to go around obstacles or perform tight turning maneuvers more easily. In addition, because the articulated device allows the front and rear frames to rotate relative to each other, the articulated chassis is able to better adapt to uneven terrain. This design reduces the risk of damage to the vehicle due to uneven terrain and improves off-road performance.

[0003] In recent years, articulated chassis technology has been gradually applied to corn harvesters, effectively improving the harvesting efficiency of corn harvesters. Corn harvesters harvest ears through the header and transport them to the bridge, and then transport them to the grain box through the ear conveyor. For articulated chassis corn harvesters, the ear conveyor needs to flexibly adjust its position according to the turning angle of the front and rear frames.

[0004] However, a conveying and removing debris device and a corn harvester disclosed in CN16017845U relate to the field of agricultural machinery, wherein the conveying and removing debris device comprises a debris removal roller assembly, a cover shell and a conveying device, wherein the cover shell has a feed section and a discharge section that are connected, the debris removal assembly is installed in the feed section, the bottom wall of the discharge section has a discharge port, and the conveying device is fixedly connected to the cover shell and is located at one end of the discharge port near the feed section. A fresh corn lifting device disclosed in CN220776600U comprises a shell, wherein a conveyor belt is arranged in the shell, and the conveying direction of the conveyor belt is arranged along an inclined upward direction, and conveyor rollers are respectively sleeved at both ends of the conveyor belt, and both ends of the conveyor rollers are rotatably connected to the shell, and one of the conveyor rollers extends out of the shell and is provided with a transmission wheel; a plurality of support rollers are distributed between the two conveyor rollers, and the upper side of the support rollers is in contact with the conveyor belt; a collection box is provided below the shell, and a drop port is provided at the bottom of the shell, and the upper end of the collection box is connected to the drop port. This solution uses a conveyor belt to lift fresh corn, avoiding hard contact between the lifter components and the fresh corn, reducing the extrusion and friction during the lifting of fresh corn, and reducing corn wear; in addition, the corn that falls to the bottom of the shell falls into the collection box through the drop port, avoiding the corn from falling and accumulating on the conveyor roller at the lower end of the shell, ensuring the reliable operation of the conveyor belt. The above-mentioned conveying devices in the prior art cannot flexibly adjust their posture according to the turning angle of the front and rear frames, and can no longer meet the operating requirements of the articulated chassis corn harvester. Summary of the invention

[0005] The present invention provides an ear conveying device and an articulated chassis corn harvester to solve the technical problem that the existing ear conveying device cannot flexibly adjust its posture according to the turning angle of the front and rear frames and cannot meet the operation requirements of the articulated chassis corn harvester.

[0006] According to one aspect of the present invention, there is provided a fruit ear conveying device, comprising a front frame, a rear frame hinged to the front frame, a conveying assembly for conveying fruit ears and arranged vertically and rotatably on the front frame, a driving assembly arranged on the front frame and connected to the free end of the conveying assembly and used to drive the conveying assembly to rotate vertically relative to the front frame, and a supporting assembly arranged on the rear frame, wherein the supporting assembly is used to support the free end of the conveying assembly and, when the front frame and the rear frame rotate relative to each other, the supporting assembly drives the conveying assembly to rotate vertically relative to the front frame by slidingly cooperating with the conveying assembly.

[0007] As a further improvement of the above technical solution:

[0008] Furthermore, the support assembly includes a support frame arranged on the rear frame, an arc plate arranged on the support frame and having an upper end in a convex arc shape, and a sliding sleeve sleeved on the upper end of the arc plate for slidingly cooperating with the conveying assembly.

[0009] Furthermore, the support frame includes an inclined bent support plate, a mounting bracket arranged on the rear frame for mounting the arc plate, a bracket connecting plate respectively connected to the lower end of the bent support plate and the rear frame, and a bent connecting plate respectively connected to the upper end of the bent support plate and the mounting bracket.

[0010] Furthermore, the conveying assembly includes a conveying frame hinged to the front frame and the driving assembly respectively, a conveying member rotatably arranged on the conveying frame, and a slide seat leg fixedly arranged on the lower end of the conveying frame for slidingly cooperating with the sliding sleeve.

[0011] Furthermore, the slide seat leg includes two slide side plates that are relatively and spaced apart on the lower end of the conveying frame, a first slide circular tube respectively connected to the first ends of the two slide side plates, and a second slide circular tube respectively connected to the second ends of the two slide side plates. The first slide circular tube is used for sliding cooperation with the sliding sleeve when the front frame rotates in a first direction relative to the rear frame, and the second slide circular tube is used for sliding cooperation with the slide sleeve when the front frame rotates in a second direction relative to the rear frame.

[0012] Furthermore, the conveyor frame includes a main frame, a crossbeam arranged on the main frame, a handle arranged on the side of the main frame, and a slideway mounting plate arranged on the side of the main frame and connected to the slideway side plate.

[0013] Furthermore, the conveying member includes a driven roller hinged to the conveying frame and the front frame respectively, an active roller slidably and rotatably arranged on the conveying frame, a conveyor belt sleeved outside the driven roller and the active roller, a hydraulic motor whose output end is connected to the active roller, and a tensioning mechanism arranged on the conveying frame and whose movable end is connected to the active roller.

[0014] Furthermore, the driving and rotating assembly includes a driving and rotating mounting frame fixedly arranged on the front frame, a driving and rotating oil cylinder arranged on the driving and rotating mounting frame, a first pulley group arranged vertically on the driving and rotating mounting frame, a second pulley group arranged horizontally on the driving and rotating mounting frame, a pulling rope respectively connected to the movable end of the driving and rotating oil cylinder and the free end of the conveying assembly and respectively slidingly cooperating with the first pulley group and the second pulley group, and a protective ring chain respectively connected to the free end of the conveying assembly and the driving and rotating mounting frame.

[0015] Furthermore, the driving mounting frame includes two support arms arranged relatively spaced apart on the front frame, and mounting beams respectively connected to the upper ends of the two support arms, and the driving cylinder, the first pulley block, the second pulley block and the protective ring chain are arranged on the mounting beams.

[0016] According to another aspect of the present invention, there is also provided an articulated chassis corn harvester, which includes the above-mentioned ear conveying device.

[0017] The present invention has the following beneficial effects:

[0018] The corn ear conveying device of the present invention realizes a smaller turning radius by articulating the front frame and the rear frame, improves the terrain adaptability, and enhances the harvesting efficiency. The corn ears are conveyed to the grain box by the conveying assembly. When the grain box is full and needs to be unloaded, the free end of the conveying assembly is driven by the rotating assembly to rotate vertically upward relative to the front frame to avoid interference and obstruction between the grain box that is tipping over to unload the grain and the conveying assembly. After the grain unloading is completed, the free end of the vertical assembly is driven by the rotating assembly to rotate vertically downward relative to the front frame to reset, and then lean on the supporting assembly, thereby ensuring stable transportation of the corn ears after they are harvested. When the articulated chassis corn harvester using the above-mentioned corn ear conveying device turns, the front frame and the rear frame rotate relatively. At this time, Under the inertia caused by the rotation, the support assembly and the conveying assembly slide in cooperation to drive the conveying assembly to rotate vertically upward relative to the front frame, thereby avoiding other parts on the corn harvester that may cause interference and obstruction, and when resetting after turning, the support assembly drives the conveying assembly to rotate vertically downward relative to the front frame to achieve synchronous resetting; when unloading grain, this solution actively adjusts the posture of the conveying assembly through the driving assembly to ensure smooth unloading of grain, and compared with the prior art, the posture of the conveying assembly can be adaptively adjusted according to the turning angles of the front frame and the rear frame to meet the operating requirements of the articulated chassis corn harvester, thereby ensuring the harvesting efficiency of the articulated chassis corn harvester, and has strong practicality and is suitable for wide promotion and application.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is a structural schematic diagram of a fruit ear conveying device according to a preferred embodiment of the present invention;

[0022] Figure 2 It is a structural schematic diagram of a conveying component in a fruit ear conveying device in a preferred embodiment of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the sliding seat legs in the fruit ear conveying device of the preferred embodiment of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a driving and rotating assembly in a fruit ear conveying device in a preferred embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a support assembly in a fruit ear conveying device in a preferred embodiment of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the ear conveying device of the preferred embodiment of the present invention when unloading grain;

[0027] Figure 7 It is a partial structural schematic diagram of an articulated chassis corn harvester when turning left according to a preferred embodiment of the present invention;

[0028] Figure 8 It is a partial structural schematic diagram of the articulated chassis corn harvester when turning right according to the preferred embodiment of the present invention.

[0029] Legend:

[0030] 100, front frame; 200, rear frame; 300, conveying assembly; 311, main frame; 312, crossbeam; 313, handle; 314, slideway mounting plate; 321, driven roller; 322, driving roller; 323, conveyor belt; 324, tensioning mechanism; 330, slideway seat leg; 331, slideway side plate; 332, first slideway circular tube; 333, second slideway circular tube; 400, driving assembly; 410, driving mounting frame; 420, driving cylinder; 430, first pulley block; 440, second pulley block; 450, pulling rope; 460, protective chain; 500, support assembly; 511, bending support plate; 512, mounting bracket; 513, bracket connecting plate; 514, bending connecting plate; 520, arc plate; 530, sliding sleeve; 600, articulated shaft. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0032] like Figure 1 , Figure 6-Figure 8 As shown, the fruit ear conveying device of this embodiment includes a front frame 100, a rear frame 200 hinged to the front frame 100, a conveying assembly 300 for conveying fruit ears arranged vertically and rotatably on the front frame 100, a driving assembly 400 arranged on the front frame 100 and connected to the free end of the conveying assembly 300 for driving the conveying assembly 300 to rotate vertically relative to the front frame 100, and a supporting assembly 500 arranged on the rear frame 200. The supporting assembly 500 is used to support the free end of the conveying assembly 300, and when the front frame 100 and the rear frame 200 rotate relatively, the supporting assembly 500 slides with the conveying assembly 300 to drive the conveying assembly 300 to rotate vertically relative to the front frame 100.

[0033] like Figure 1 , Figure 6-Figure 8As shown, specifically, the ear conveying device of the present invention realizes a smaller turning radius by hingedly connecting the front frame 100 and the rear frame 200, improves the terrain adaptability, and improves the harvesting efficiency. The ear is conveyed to the grain box through the conveying assembly 300. When the grain box is full and needs to be unloaded, the free end of the conveying assembly 300 is driven by the rotating assembly 400 to rotate vertically upward relative to the front frame 100 to avoid interference and obstruction between the overturned grain box and the conveying assembly 300. After the grain unloading is completed, the free end of the vertical assembly is driven by the rotating assembly 400 to rotate vertically downward relative to the front frame 100 and reset, and then lean on the supporting assembly 500, so as to ensure the stable transportation of the ear after the harvest. When the articulated chassis corn harvester using the above-mentioned ear conveying device turns, the front frame 100 and the rear frame 200 rotate relative to each other. When the front frame 100 is in the forward direction, the support assembly 500 and the conveying assembly 300 are in the forward direction, and the conveying assembly 300 is ...

[0034] like Figure 1 As shown, optionally, the front frame 100 and the rear frame 200 are hingedly connected via an articulation shaft 600 .

[0035] like Figure 5 As shown, in this embodiment, the support assembly 500 includes a support frame arranged on the rear frame 200, an arc plate 520 arranged on the support frame and having an upper end in a convex arc shape, and a sliding sleeve 530 sleeved on the upper end of the arc plate 520 for slidingly cooperating with the conveying assembly 300.

[0036] like Figure 5As shown, specifically, the support frame provides an installation position and a suitable installation height to sequentially install the arc plate 520 and the sliding sleeve 530, so that the sliding sleeve 530 can slide with the free end of the conveying assembly 300, so that when the front frame 100 and the rear frame 200 rotate relatively, the conveying assembly 300 can slide along the convex arc of the arc plate 520, and can rotate vertically upward or vertically downward relative to the front frame 100, so as to realize adaptive adjustment of the posture of the conveying assembly 300, and under the joint action of the sliding sleeve 530 and the convex arc, the friction during sliding is reduced, the wear during sliding is reduced, and mutual interference and obstruction of sliding are prevented, so as to improve the adaptive adjustment capability and extend the service life of the relevant matching parts.

[0037] like Figure 5 As shown, optionally, the upper end of the arc plate 520 is a centered symmetrical structure, so when the free end of the conveying assembly 300 moves to the middle of the arc plate 520 relative to the sliding sleeve 530, it reaches the highest position, which is also the limit position of the relative rotation of the front frame 100 and the rear frame 200. Optionally, the turning limit is 40°, that is, when the front frame 100 and the rear frame 200 rotate relative to 40°, the conveying assembly 300 slides synchronously relative to the sliding sleeve 530 to reach the highest position. The centered symmetrical structure can ensure that both left and right turns can reach the highest position. It should be understood that in other embodiments, the turning limit can be adaptively adjusted and set according to needs.

[0038] Optionally, the sliding sleeve 530 is a nylon sleeve.

[0039] like Figure 5 As shown, in this embodiment, the support frame includes a slanted bent support plate 511, a mounting bracket 512 arranged on the rear frame 200 for mounting the arc plate 520, a bracket connecting plate 513 respectively connected to the lower end of the bent support plate 511 and the rear frame 200, and a bent connecting plate 514 respectively connected to the upper end of the bent support plate 511 and the mounting bracket 512.

[0040] like Figure 5 As shown, specifically, the rear frame 200 is also used to install a grain box, so the support frame can also be used to support the grain box, that is, the "V"-shaped grain box is supported by the inclined bent support plate 511, and then the arc plate 520 is installed by the mounting bracket 512, and the turning support plate and the rear frame 200 are respectively connected by the bracket connecting plate 513, and the bent support plate 511 and the mounting bracket 512 are respectively connected by the bent connecting plate 514, so as to connect the components tightly together in sequence to ensure that the overall structure is compact, stable and reliable, so as to achieve stable support for the free end of the conveying component 300 and the grain box respectively.

[0041] like Figure 2As shown, in this embodiment, the conveying assembly 300 includes a conveying frame hinged to the front frame 100 and the driving assembly 400 respectively, a conveying member rotatably arranged on the conveying frame, and a slide seat leg 330 fixedly arranged on the lower end of the conveying frame for slidingly cooperating with the sliding sleeve 530.

[0042] like Figure 2 As shown, specifically, the conveying member and the slide seat cover are respectively installed through the conveying frame, and are respectively hinged to the front frame 100 and the driving and rotating assembly 400, so that they can be vertically rotated relative to the front frame 100 under the action of the driving and rotating assembly 400, and the harvested fruit ears are transported to the grain box through the conveying member, and the slide seat leg 330 is slidably matched with the sliding cover 530, and the conveying frame is driven to rotate vertically relative to the front frame 100 under the action of the arc plate 520.

[0043] like Figure 3 As shown, in this embodiment, the slide seat leg 330 includes two slide side plates 331 that are relatively and spaced apart on the lower end of the conveying frame, a first slide circular tube 332 respectively connected to the first ends of the two slide side plates 331, and a second slide circular tube 333 respectively connected to the second ends of the two slide side plates 331. The first slide circular tube 332 is used for slidingly cooperating with the sliding sleeve 530 when the front frame 100 rotates relative to the rear frame 200 in the first direction, and the second slide circular tube 333 is used for slidingly cooperating with the slide sleeve when the front frame 100 rotates relative to the rear frame 200 in the second direction.

[0044] like Figure 3 As shown, specifically, the first slide tube 332 and the second slide tube 333 are respectively installed through the two slide side plates 331, and are arranged in a straight line on the front frame 100 and the rear frame 200. The first slide tube 332 and the second slide tube 333 both rely on the sliding sleeve 530, and when the rear frame 200 rotates in a first direction relative to the front frame 100, the first slide tube 332 and the sliding sleeve 530 are slidably matched to slide on the arc plate 520, and then move vertically upward relative to the front frame 100 to avoid other components on the corn harvester that may cause interference and obstruction in the first direction; and when the rear frame 200 rotates in a second direction relative to the front frame 100, the second slide tube 333 and the sliding sleeve 530 are slidably matched to slide on the arc plate 520, and then move vertically upward relative to the front frame 100 to avoid other components on the corn harvester that may cause interference and obstruction in the second direction.

[0045] like Figure 2 As shown, in this embodiment, the conveying frame includes a main frame 311, a crossbeam 312 arranged on the main frame 311, a handle 313 arranged on the side of the main frame 311, and a slide mounting plate 314 arranged on the side of the main frame 311 and connected to the slide side plate 331.

[0046] like Figure 2 As shown, specifically, a mounting cavity is formed by the main frame 311 to mount the conveying member, and then the structural stability of the main frame 311 is improved by the crossbeam 312, and the crossbeam 312 can be connected to the driving assembly 400, and the handle 313 is used to facilitate manual adjustment of the angle of the conveying frame relative to the front frame 100, so that the position of the conveying assembly 300 can be flexibly changed, and the slide side plate 331 is installed by the sliding mounting plate so that it can slide relative to the sliding sleeve 530.

[0047] like Figure 2 As shown, in this embodiment, the conveying member includes a driven roller 321 respectively hinged to the conveying frame and the front frame 100, an active roller 322 slidably and rotatably arranged on the conveying frame, a conveyor belt 323 sleeved outside the driven roller 321 and the active roller 322, a hydraulic motor connected to the active roller 322 at the output end, and a tensioning mechanism 324 arranged on the conveying frame and connected to the active roller 322 at the movable end.

[0048] like Figure 2 As shown, specifically, the conveyor belt 323 is installed through the driven roller 321 and the driving roller 322, so that the hydraulic motor can drive the driving roller 322 to rotate, thereby driving the conveyor belt 323 to move so as to transport the fruit ears, and the driving roller 322 is driven by the tensioning mechanism 324 to slide on the conveying frame to increase the distance between the driving roller 322 and the driven roller 321, so that the conveyor belt 323 remains taut.

[0049] like Figure 4 As shown, in this embodiment, the driving assembly 400 includes a driving mounting frame 410 fixedly arranged on the front frame 100, a driving cylinder 420 arranged on the driving mounting frame 410, a first pulley group 430 arranged vertically on the driving mounting frame 410, a second pulley group 440 arranged horizontally on the driving mounting frame 410, a pulling rope 450 respectively connected to the movable end of the driving cylinder 420 and the free end of the conveying assembly 300 and respectively slidingly cooperating with the first pulley group 430 and the second pulley group 440, and a protective ring chain 460 respectively connected to the free end of the conveying assembly 300 and the driving mounting frame 410.

[0050] like Figure 4As shown, specifically, the driving cylinder 420, the first pulley group 430, the second pulley group 440 and the protective chain 460 are installed through the driving mounting frame 410, so that when unloading grain, the driving cylinder 420 works to pull the pulling rope 450 to move along the first pulley group 430 and the second pulley group 440 in sequence, thereby pulling the conveying assembly 300 to rotate vertically upward relative to the front frame 100, thereby providing an escape space for the overturning of the grain box, and the protective chain 460 can play a protective role when the traction rope is accidentally separated from the conveying assembly 300. The driving cylinder 420 is arranged in the horizontal direction, so as not to occupy too much installation space. The first pulley group 430 and the second pulley group 440 convert the horizontal pulling force into a pulling force in the direction perpendicular to the crossbeam 312 of the conveying assembly 300, so as to pull the conveying assembly 300 to rotate vertically relative to the front frame 100.

[0051] like Figure 2 As shown, optionally, a plurality of lifting openings are arranged on the crossbeam 312, and the pulling rope 450 and the protection ring chain 460 are connected to different lifting openings.

[0052] like Figure 6 As shown, optionally, in this embodiment, when the front frame 100 and the rear frame 200 are arranged in a straight line and the conveying assembly 300 leans on the supporting assembly 500, the angle of the conveying assembly 300 relative to the front frame 100 is 49°. When unloading grain, the driving assembly 400 drives the conveying assembly 300 to rotate vertically upward relative to the front frame 100 until the angle between the conveying assembly 300 and the front frame 100 increases to 58°. At this time, the conveying assembly 300 will not hinder the movement of the grain box, and the grain can be unloaded smoothly.

[0053] like Figure 4 As shown, in this embodiment, the driving mounting frame 410 includes two support arms relatively spaced apart on the front frame 100, and mounting beams respectively connected to the upper ends of the two support arms, and the driving cylinder 420, the first pulley set 430, the second pulley set 440 and the protective chain 460 are arranged on the mounting beams.

[0054] Specifically, the mounting beam is connected through the upper ends of two support arms arranged at intervals, and the two support arms and the mounting beam are arranged in a door shape, so as not to hinder the harvesting and transportation of the fruit ears; and then the driving cylinder 420, the first pulley group 430, the second pulley group 440 and the protective chain 460 can be reliably installed through the mounting beam.

[0055] Optionally, a dust removal fan is installed on the mounting beam to remove debris such as clods of earth and stones on the conveyor belt 323.

[0056] like Figure 7 and Figure 8As shown, the articulated chassis corn harvester of this embodiment includes the above-mentioned ear conveying device. Specifically, by adopting the above-mentioned ear conveying device in the articulated chassis corn harvester, a smaller turning radius can be achieved, and the harvesting efficiency can be improved. At the same time, the posture of the conveying component 300 can be flexibly adjusted, and interference between components can be avoided. It is highly practical and suitable for wide promotion and application.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fruit ear conveying device, characterized in that: The invention comprises a front frame (100), a rear frame (200) hinged to the front frame (100), a conveying assembly (300) arranged on the front frame (100) and rotatably arranged in the vertical direction for conveying fruit ears, a driving assembly (400) arranged on the front frame (100) and connected to the free end of the conveying assembly (300) for driving the conveying assembly (300) to rotate vertically relative to the front frame (100), and a supporting assembly (500) arranged on the rear frame (200). The supporting assembly (500) is used to support the free end of the conveying assembly (300) and, when the front frame (100) and the rear frame (200) rotate relative to each other, the supporting assembly (500) is slidably matched with the conveying assembly (300) to drive the conveying assembly (300) to rotate vertically relative to the front frame (100).

2. The ear conveying device according to claim 1, characterized in that: The support assembly (500) comprises a support frame arranged on the rear frame (200), an arc plate (520) arranged on the support frame and having an upper end arranged in a convex arc shape, and a sliding sleeve (530) sleeved on the upper end of the arc plate (520) and used for slidingly cooperating with the conveying assembly (300).

3. The ear conveying device according to claim 2, characterized in that: The support frame comprises a slanted bent support plate (511), a mounting bracket (512) arranged on the rear frame (200) and used for mounting the arc plate (520), a bracket connecting plate (513) respectively connected to the lower end of the bent support plate (511) and the rear frame (200), and a bent connecting plate (514) respectively connected to the upper end of the bent support plate (511) and the mounting bracket (512).

4. The ear conveying device according to claim 2, characterized in that: The conveying assembly (300) comprises a conveying frame hinged to the front frame (100) and the driving assembly (400), a conveying member rotatably arranged on the conveying frame, and a slideway seat leg (330) fixedly arranged on the lower end of the conveying frame and used for sliding cooperation with the sliding sleeve (530).

5. The ear conveying device according to claim 4, characterized in that: The slide seat leg (330) comprises two slide side plates (331) arranged oppositely and at intervals on the lower end of the conveying frame, a first slide circular tube (332) respectively connected to the first ends of the two slide side plates (331), and a second slide circular tube (333) respectively connected to the second ends of the two slide side plates (331). The first slide circular tube (332) is used for slidingly cooperating with the slide sleeve (530) when the front frame (100) rotates relative to the rear frame (200) in a first direction, and the second slide circular tube (333) is used for slidingly cooperating with the slide sleeve when the front frame (100) rotates relative to the rear frame (200) in a second direction.

6. The ear conveying device according to claim 5, characterized in that: The conveying frame comprises a main frame (311), a crossbeam (312) arranged on the main frame (311), a handle (313) arranged on the side of the main frame (311), and a slideway mounting plate (314) arranged on the side of the main frame (311) and connected to the slideway side plate (331).

7. The ear conveying device according to claim 4, characterized in that: The conveying member comprises a driven roller (321) respectively hinged to the conveying frame and the front frame (100), a driving roller (322) slidably and rotatably arranged on the conveying frame, a conveying belt (323) sleeved outside the driven roller (321) and the driving roller (322), a hydraulic motor whose output end is connected to the driving roller (322), and a tensioning mechanism (324) arranged on the conveying frame and whose movable end is connected to the driving roller (322).

8. The ear conveying device according to any one of claims 1 to 7, characterized in that: The driving assembly (400) comprises a driving mounting frame (410) fixedly arranged on the front frame (100), a driving oil cylinder (420) arranged on the driving mounting frame (410), a first pulley block (430) arranged vertically on the driving mounting frame (410), a second pulley block (440) arranged horizontally on the driving mounting frame (410), a pulling rope (450) respectively connected to the movable end of the driving oil cylinder (420) and the free end of the conveying assembly (300) and respectively slidably matched with the first pulley block (430) and the second pulley block (440), and a protective ring chain (460) respectively connected to the free end of the conveying assembly (300) and the driving mounting frame (410).

9. The ear conveying device according to claim 8, characterized in that: The driving and rotating mounting frame (410) comprises two supporting arms arranged on the front frame (100) at a relative interval, and a mounting beam connected to the upper ends of the two supporting arms respectively, and the driving and rotating oil cylinder (420), the first pulley group (430), the second pulley group (440) and the protective ring chain (460) are arranged on the mounting beam.

10. An articulated chassis corn harvester, characterized in that: It comprises the fruit cluster conveying device as described in any one of claims 1-9.

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