Clamping and conveying device for header test bed of corn harvester

By designing a clamping and conveying device for the corn harvester header test platform that is easy to clamp and adjust, a DC motor and a pneumatic telescopic rod are used to achieve uniform clamping and adjustment of corn stalks of different diameters. This solves the problem of low reliability of test results caused by the single design of existing devices, and improves the reliability and efficiency of the test.

CN223694373UActive Publication Date: 2025-12-23UNIV OF JINAN
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Patent Information

Application Number
CN202423114429.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-12-23
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

The existing clamping device on the header test platform of corn harvester fixes a single corn stalk, which is a single design, resulting in low reliability of test results, low clamping efficiency, and no unified clamping and adjustment function.

Method used

Design a clamping and conveying device for a corn harvester header test bench that is easy to clamp and adjust. The device uses two clamping and conveying frames, one of which is driven by a DC motor to adjust the distance of the threaded rod. Combined with a pneumatic telescopic rod and a double-headed electric telescopic rod to adjust the limiting plate, it can achieve uniform clamping and adjustment of corn stalks of different diameters.

Benefits of technology

It improves the reliability and effectiveness of the experiment, reduces the influence of accidental factors, enhances the universality and applicability of the experimental results, prevents corn ears and kernels from slipping off, and improves clamping efficiency and ease of adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a corn harvester header testbed clamping and conveying device which comprises a first clamping and adjusting conveying frame, a second clamping and adjusting conveying frame, an upper frame and a fixing frame, the upper portion of the first clamping and adjusting conveying frame is in threaded connection with a third threaded rod, and the upper portion of the second clamping and adjusting conveying frame is in sliding connection with a sliding rod. The right end of the third threaded rod is provided with a second movable block, and the left end of the third threaded rod penetrates through the first movable block and is provided with a third direct current motor. The distance between the first clamping and adjusting conveying frame and the second clamping and adjusting conveying frame is reduced and increased to adapt to placement of corn stalks with different diameters, the device has a unified clamping and fixing function and a unified adjusting function, and the corn stalks of different varieties can be well clamped and fixed in a unified mode while being placed; unified adjustment is carried out according to corn stalks with different diameters, and the test reliability and effectiveness are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field, concretely is a kind of corn harvester header test bench clamping conveying device. BACKGROUND

[0002] The header of corn harvester is mainly composed of divider, chain, ear picking device and conveying system, and the ear picking device is the core part of the header, but when the header test bench of corn harvester is used for ear picking test, the test object is usually single, and the ear picking test is usually carried out on one kind of corn, and only one kind of corn stalk is fixed and clamped during ear picking, the clamping device is designed only for one kind of corn stalk during the design of test bench, and the test is accidental, so that the reliability and effectiveness of final result are low, and it takes time and effort to make a new set of clamping device, and when many corn stalks are clamped, they need to be clamped one by one, which is low in efficiency and inconvenient, and it does not have the function of clamping and fixing corn stalks uniformly, and it does not have the function of uniform adjustment. SUMMARY

[0003] The utility model aims at solving the deficiency of the corn harvester header test bench clamping conveying device in the background art, and provides a corn harvester header test bench clamping conveying device which is convenient to clamp and adjust, has high adaptability and can improve test reliability.

[0004] To achieve the above object, the utility model provides the following technical scheme: a corn harvester header test bench clamping conveying device, which comprises clamping and adjusting conveying frame one, clamping and adjusting conveying frame two, upper frame and fixing frame, the upper part of the clamping and adjusting conveying frame one is screw-threadedly connected with threaded rod three, the upper part of the clamping and adjusting conveying frame two is slidingly connected with slide rod, the right end of the threaded rod three is provided with moving block two, the left end of the threaded rod three penetrates through movable block one and is provided with DC motor three, the DC motor three is provided with connecting frame, the connecting frame is slidingly connected with movable groove three, the movable groove three is arranged on the top front side of the base frame, the right end of the slide rod is provided with moving block one, the left end of the slide rod is provided with movable block two, the movable block one is screw-threadedly connected with threaded rod one, the front end of the threaded rod one is provided with DC motor one, the rear end of the threaded rod one is provided with connecting shaft rod, the rear end of the connecting shaft rod is provided with threaded rod two, the rear end of the threaded rod two is provided with DC motor two, the threaded rod two is screw-threadedly connected with movable block two, the movable block two is slidingly connected with movable groove two, the movable block one is slidingly connected with movable groove one, the movable groove two and the movable groove one are respectively arranged on the left side front and rear end of the fixing frame, the front side between the clamping and adjusting conveying frame one and the clamping and adjusting conveying frame two is provided with fixed pressing plate, the top of the fixed pressing plate is provided with pneumatic telescopic rod two on the left and right sides, the two pneumatic telescopic rod two are slidingly connected with top groove one, and the top groove one is arranged on the bottom front side of the upper frame.

[0005] As a preferred technical scheme of the utility model, the top front side of the first clamping and adjusting conveying frame is provided with adjusting groove one, the top rear side of the second clamping and adjusting conveying frame is provided with adjusting groove two, the inside left and right sides of adjusting groove one are slidably connected with adjusting frame two, the inside left and right sides of adjusting groove two are slidably connected with adjusting frame one, the side close to each other of two adjusting frame one is fixedly connected with the both sides output end of double -end electric telescopic link respectively, two adjusting frame two is slidably connected with the front side middle part of corresponding adjusting frame one respectively, the middle part of double -end electric telescopic link cylinder body is provided with connecting block, the top of connecting block is provided with pneumatic telescopic link one, the cylinder body top of pneumatic telescopic link one is provided with top block, top block is slidably connected with top groove two, top groove two is arranged in the bottom end middle part of upper frame, and the bottom of two adjusting frame one is installed with limiting plate.

[0006] As a preferred technical scheme of the utility model, the rear side of the upper limiting plate of the fixing frame is provided with a through groove.

[0007] As a preferred technical scheme of the utility model, the left side of the second clamping and adjusting conveying frame is slidably connected at the top of the first clamping and adjusting conveying frame, and the left side of the second clamping and adjusting conveying frame penetrates the middle and lower ends of the first clamping and adjusting conveying frame.

[0008] As a preferred technical scheme of the utility model, the first clamping and adjusting conveying frame and the second clamping and adjusting conveying frame are both provided with through holes at equal intervals.

[0009] As a preferred technical scheme of the utility model, the two limiting plates are slidably connected inside the first clamping and adjusting conveying frame and the second clamping and adjusting conveying frame, and the two limiting plates are close to or away from each other.

[0010] As a preferred technical scheme of the utility model, the first clamping and adjusting conveying frame and the second clamping and adjusting conveying frame are inclined, and the left side of the first clamping and adjusting conveying frame and the second clamping and adjusting conveying frame is higher than the right side.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] 1. The utility model discloses a unified clamping and fixing of the bottom end of corn stalk is carried out through clamp adjusting conveying frame no. 1 and clamp adjusting conveying frame no. 2, and the combination between clamp adjusting conveying frame no. 1 and clamp adjusting conveying frame no. 2 can fix multiple corn stalks, which is convenient for the unified clamping and conveying and earing processing, and the distance between clamp adjusting conveying frame no. 1 and clamp adjusting conveying frame no. 2 can be adjusted to place and fix the corn stalks of different diameters, mainly through the installation of the movable block no. 1 on clamp adjusting conveying frame no. 1 and the installation of the movable block no. 2 on clamp adjusting conveying frame no. 2, the movable block no. 1 is driven to move linearly on the threaded rod no. 1 through the direct current motor no. 1, the movable block no. 2 is driven to move linearly on the threaded rod no. 2 through the direct current motor no. 2, the direct current motor no. 2 and the direct current motor no. 1 are synchronously operated, the direct current motor no. 2 and the direct current motor no. 1 can be operated in positive and reverse directions, the distance between clamp adjusting conveying frame no. 1 and clamp adjusting conveying frame no. 2 is reduced or enlarged to adapt to the placement of corn stalks of different diameters, the corn harvester header test bench clamping and conveying device has the functions of unified clamping and fixing and unified adjustment, can well clamp and fix the corn stalks while placing multiple corn stalks, has the function of unified adjustment, and can be adjusted according to the diameters of the bottom ends of the corn stalks. When doing the test, different groups of tests on corn stalks of different varieties and diameters can be easily carried out, the reliability and effectiveness of the test are improved, the influence of accidental factors on the test results is reduced, the applicability of the test results under different conditions is verified, and the universality and popularization of the test results are enhanced.

[0013] 2. Two limit plates are mainly arranged on the two sides of clamp adjusting conveying frame no. 2 and clamp adjusting conveying frame no. 1 to block the corn cobs and the corn kernels falling in the earing process on both sides, prevent the corn cobs and the corn kernels from falling, and the two limit plates can adjust the distance on clamp adjusting conveying frame no. 2 and clamp adjusting conveying frame no. 1, the adjustment is mainly carried out through the double -end electric telescopic rod that drives the two sides of the adjusting frame no. 1 and the two sides of the limit plate connected to move close to or away from clamp adjusting conveying frame no. 2 and clamp adjusting conveying frame no. 1, and when the two sides of the limit plate do not need to block the corn cobs and the corn kernels falling in the earing process, the pneumatic telescopic rod no. 1 is driven to rise away from clamp adjusting conveying frame no. 2 and clamp adjusting conveying frame no. 1, has the function of limiting and preventing the corn cobs and the corn kernels from falling, and can adjust the distance. ACCURATE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 It is the left side view of the utility model;

[0016] Figure 3 It is the top view of the utility model;

[0017] Figure 4 It is the bottom view of the utility model;

[0018] Figure 5 Figure shows the display of the clamp adjusting conveying frame one and the clamp adjusting conveying frame two.

[0019] Figure: 1, connecting shaft; 2, threaded rod one; 3, DC motor one; 4, threaded rod two; 5, DC motor two; 6, movable block one; 7, movable block two; 8, clamp adjusting conveying frame one; 9, clamp adjusting conveying frame two; 10, adjusting groove one; 11, adjusting groove two; 12, upper frame; 13, top groove one; 14, top groove two; 15, top block; 16, pneumatic telescopic rod one; 17, pneumatic telescopic rod two; 18, fixed pressing plate; 19, moving block two; 20, adjusting frame one; 21, adjusting frame two; 22, limiting plate; 23, DC motor three; 24, threaded rod three; 25, sliding rod; 26, fixed frame; 27, passing groove; 28, moving block one; 29, movable groove one; 30, movable groove two; 31, connecting frame; 32, movable groove three; 33, double-head electric telescopic rod; 34, connecting block; 35, bottom frame; 36, through hole. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figures 1-5The utility model provides a corn harvester header test bench clamping conveying device, including clamping and adjusting conveying frame no. 8, clamping and adjusting conveying frame no. 9, upper stand 12 and fixed stand 26, the upper portion of clamping and adjusting conveying frame no. 8 is connected with threaded rod no. 3 24 threadedly, the upper portion of clamping and adjusting conveying frame no. 9 is connected with slide rod 25 slidingly, the right end of threaded rod no. 3 24 is installed with moving block no. 2 19, the left end of threaded rod no. 3 24 is passed through movable block no. 1 6 and is installed with direct current motor no. 3 23, direct current motor no. 3 23 is installed with connecting frame 31, and connecting frame 31 is connected with movable slot no. 3 32 slidingly, and movable slot no. 3 32 is arranged at the top front side of the bottom bracket 35, the right end of slide rod 25 is installed with moving block no. 1 28, the left end of slide rod 25 is installed with movable block no. 2 7, movable block no. 1 6 is connected with threaded rod no. 1 2 threadedly, and direct current motor no. 1 3 is installed at the front end of threaded rod no. 1 2, and connecting axle rod 1 is installed at the rear end of threaded rod no. 1 2, and threaded rod no. 2 4 is installed at the rear end of connecting axle rod 1, and direct current motor no. 2 5 is installed at the rear end of threaded rod no. 2 4, threaded rod no. 2 4 is connected with movable block no. 2 7 threadedly, movable slot no. 2 30 is connected with moving block no. 2 19 slidingly, movable slot no. 1 29 is connected with moving block no. 1 28 slidingly, movable slot no. 2 30 and movable slot no. 1 29 are arranged at the left side front and rear end of fixed stand 26 respectively, and the front side between clamping and adjusting conveying frame no. 8 and clamping and adjusting conveying frame no. 9 is provided with fixed pressing plate 18, the top left and right sides of fixed pressing plate 18 are provided with pneumatic telescopic rod no. 2 17, and the two pneumatic telescopic rod no. 2 17 are connected with top groove no. 1 3 slidingly, and top groove no. 1 3 is arranged at the bottom front side of upper stand 12, Figure 5The combination between the adjustable clamping conveyor No. 1 8 and the adjustable clamping conveyor No. 9 fixes the multiple corn stalks well, which is convenient for the subsequent unified clamping, conveying and earing processing. The adjustable clamping conveyor No. 8 and the adjustable clamping conveyor No. 9 can adjust the distance for fixing the corn stalks with different diameters. The movable block No. 1 6 is installed on the adjustable clamping conveyor No. 8, and the movable block No. 7 is installed on the adjustable clamping conveyor No. 9. The movable block No. 1 6 is driven by the DC motor No. 3 to move linearly on the threaded rod No. 2. The movable block No. 7 is driven by the DC motor No. 5 to move linearly on the threaded rod No. 4. The DC motor No. 5 and the DC motor No. 3 are synchronously operated. The DC motor No. 5 and the DC motor No. 3 can be operated in the forward and reverse directions to reduce and expand the distance between the adjustable clamping conveyor No. 8 and the adjustable clamping conveyor No. 9 to adapt to the placement of the corn stalks with different diameters. The adjustable clamping conveyor No. 8 and the adjustable clamping conveyor No. 9 can move linearly left and right from the position of the connecting shaft No. 1 to the position of the through slot No. 27 on the fixing frame No. 26. The threaded rod No. 3 is installed on the adjustable clamping conveyor No. 8, and the sliding rod No. 25 is installed on the adjustable clamping conveyor No. 9. The threaded rod No. 3 drives the adjustable clamping conveyor No. 8 and the connected adjustable clamping conveyor No. 9 to move on the sliding rod No. 25. After the corn stalks are fixed on the adjustable clamping conveyor No. 8 and the adjustable clamping conveyor No. 9, the corn stalks are conveyed for the earing processing. The adjustable clamping conveyor No. 8 and the adjustable clamping conveyor No. 9 are moved to the position of the fixing frame No. 26.

[0022] An adjustment groove 10 is provided on the top front side of the clamping conveyor frame 8, and an adjustment groove 21 is provided on the top rear side of the clamping conveyor frame 9. Adjustment frames 21 are slidably connected to the left and right sides of the interior of adjustment groove 10, and adjustment frames 20 are slidably connected to the left and right sides of the interior of adjustment groove 21. The two adjustment frames 20 are fixedly connected to the output ends of the two sides of the double-headed electric telescopic rod 33 on their adjacent sides. The two adjustment frames 21 are slidably connected to the front middle of the corresponding adjustment frame 20. A connecting block 34 is provided in the middle of the cylinder of the double-headed electric telescopic rod 33. A pneumatic telescopic rod 16 is provided on the top of the connecting block 34. A top block 15 is provided on the top of the cylinder of the pneumatic telescopic rod 16. The top block 15 is slidably connected to the top groove 24. The top groove 24 is located in the middle of the bottom end of the upper frame 12. The bottom of each section frame 20 is equipped with a limiting plate 22. The two limiting plates 22 are mainly located on both sides of the clamping conveyor frame 29 and clamping conveyor frame 18 to block the picked corn ears and the corn kernels that fall during the picking process, preventing them from slipping. The two limiting plates 22 can be adjusted in distance on the clamping conveyor frame 29 and clamping conveyor frame 18. The adjustment is mainly achieved by the double-headed electric telescopic rod 33, which simultaneously drives the adjusting frame 20 on both sides and the connected limiting plates 22 on both sides to move closer or further away from the clamping conveyor frame 29 and clamping conveyor frame 18. When it is not necessary to block the picked corn ears and the corn kernels that fall during the picking process, the two limiting plates 22 will be driven to rise and move away from the clamping conveyor frame 29 and clamping conveyor frame 18 by the pneumatic telescopic rod 16.

[0023] A groove 27 is provided on the upper side of the fixed frame 26, directly opposite the rear side of the limiting plate 22. After the corn stalks are placed and fixed on the clamping conveyor frame 29 and clamping conveyor frame 18, when the two limiting plates 22 are raised, the corn ears after ear picking and the corn kernels that fall during the ear picking process are no longer restricted and can pass out of the groove 27 in sequence.

[0024] The left side of clamping conveyor frame 2 9 is slidably connected to the top of clamping conveyor frame 1 8, and the left side of clamping conveyor frame 2 9 passes through the lower middle part of clamping conveyor frame 1 8, such as... Figure 5 As shown, the combination of clamping and conveying frame 2 9 and clamping and conveying frame 1 8 clamps and fixes the placed corn stalks, and the distance between clamping and conveying frame 2 9 and clamping and conveying frame 1 8 can be adjusted to accommodate corn stalks of different diameters, making it convenient to pick ears after placement.

[0025] Both the clamping conveyor frame 8 and the clamping conveyor frame 9 have through holes 36 at equal intervals. The through holes 36 are used to increase the ventilation of the corn kernels falling on the clamping conveyor frame 8 and the clamping conveyor frame 9, and to reduce the stuffiness of the equipment.

[0026] Both limiting plates 22 are slidably connected inside the clamping conveyor frame 8 and the clamping conveyor frame 9. The two limiting plates 22 are close to or far apart, and the distance between the two limiting plates 22 can be adjusted. They also block the falling corn kernels on both sides after they are piled up, preventing them from sliding down and facilitating the collection of the falling corn kernels.

[0027] The clamping conveyor frame 1 (8) and clamping conveyor frame 2 (9) are inclined, with the left side of the clamping conveyor frame 1 (8) and clamping conveyor frame 2 (9) being higher than the right side. The clamping conveyor frame 1 (8) and clamping conveyor frame 2 (9) will adjust the distance according to the diameter of the bottom end of the corn stalk and clamp and fix the corn stalk. The inclined shape makes it convenient to unload the corn stalk from the clamping conveyor frame 1 (8) and clamping conveyor frame 2 (9).

[0028] In this utility model, the bottom end of the corn stalk is uniformly clamped and fixed by clamping and conveying frame 8 and clamping and conveying frame 9, such as Figure 5 As shown, the combination of clamping and conveying frame 1 (8) and clamping and conveying frame 2 (9) secures multiple corn stalks, facilitating subsequent uniform clamping, conveying, and ear-picking. The distance between clamping and conveying frame 1 (8) and clamping and conveying frame 2 (9) can be adjusted to secure corn stalks of different diameters. This is mainly achieved by installing movable block 1 (6) on clamping and conveying frame 1 (8) and movable block 2 (7) on clamping and conveying frame 2 (9). Movable block 1 (6) is driven by DC motor 1 (3) to move linearly on threaded rod 1 (2), and movable block 2 (7) is driven by DC motor 2 (5) to move linearly on threaded rod 2 (4). DC motors 2 (5) and 1 (3) operate synchronously and can rotate in both directions, reducing and increasing the distance between clamping and conveying frame 1 (8) and clamping and conveying frame 2 (9) to accommodate corn stalks of different diameters. This allows for effective uniform clamping and securing of multiple corn stalks while simultaneously providing uniform adjustment based on the diameter of the bottom end of the corn stalk.

[0029] The two limiting plates 22 are mainly located on both sides of the clamping conveyor frame 29 and clamping conveyor frame 18, blocking the picked corn ears and the corn kernels that fall during the picking process to prevent them from slipping. The two limiting plates 22 can be adjusted in distance on the clamping conveyor frame 29 and clamping conveyor frame 18. The adjustment is mainly achieved by the double-headed electric telescopic rod 33, which simultaneously drives the adjusting frame 10 on both sides and the connected limiting plates 22 on both sides to move closer or further away from the clamping conveyor frame 29 and clamping conveyor frame 18. When it is not necessary to block the picked corn ears and the corn kernels that fall during the picking process, the limiting plates 22 are driven to rise and move away from the clamping conveyor frame 29 and clamping conveyor frame 18 by the pneumatic telescopic rod 16. This has the function of limiting and preventing slippage, and can also adjust the distance.

[0030] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A clamping and conveying device for a corn harvester header test platform, comprising a clamping and conveying frame one (8), a clamping and conveying frame two (9), an upper frame (12), and a fixing frame (26), characterized in that: The upper part of the clamping conveyor frame 1 (8) is threadedly connected to the threaded rod 3 (24), and the upper part of the clamping conveyor frame 2 (9) is slidably connected to the slide rod (25). The right end of the threaded rod 3 (24) is equipped with a movable block 2 (19), and the left end of the threaded rod 3 (24) passes through the movable block 1 (6) and is equipped with a DC motor 3 (23). The DC motor 3 (23) is equipped with a connecting frame (31), and the connecting frame (31) is slidably connected to the movable groove 3 (32). The movable groove 3 (32) is located on the top front side of the base frame (35). The right end of the slide rod (25) is equipped with a movable block 1 (28), and the left end of the slide rod (25) is equipped with a movable block 2 (7). The movable block 1 (6) is threadedly connected to the threaded rod 1 (2). The front end of the threaded rod 1 (2) is equipped with a DC motor 1 (3), and the rear end of the threaded rod 1 (2) is... A connecting shaft (1) is installed, and a threaded rod (4) is installed at the rear end of the connecting shaft (1). A DC motor (5) is installed at the rear end of the threaded rod (4). The threaded rod (4) is threadedly connected to the movable block (7). The movable block (19) is slidably connected to the movable groove (30). The movable block (28) is slidably connected to the movable groove (29). The movable groove (30) and the movable groove (29) are respectively located at the front and rear ends of the left side of the fixed frame (26). A fixed pressure plate (18) is provided on the front side between the clamping conveyor frame (8) and the clamping conveyor frame (9). Pneumatic telescopic rods (17) are provided on the top left and right sides of the fixed pressure plate (18). Both pneumatic telescopic rods (17) are slidably connected to the top groove (13). The top groove (13) is located on the bottom front side of the upper frame (12).

2. The corn harvester header test platform clamping and conveying device according to claim 1, characterized in that: The top front side of the clamping conveyor frame one (8) is provided with an adjustment groove one (10), and the top rear side of the clamping conveyor frame two (9) is provided with an adjustment groove two (11). The adjustment groove one (10) is slidably connected to the left and right sides of the interior, and the adjustment groove two (11) is slidably connected to the left and right sides of the interior, and the adjustment groove two (11) is slidably connected to the left and right sides, and the two adjustment frames one (20) are respectively fixedly connected to the output ends of the two sides of the double-headed electric telescopic rod (33) on the side closest to each other. The two adjustment frames two (21) are respectively... The corresponding adjustment frame (20) is slidably connected to the middle of the front side. The cylinder of the double-headed electric telescopic rod (33) is provided with a connecting block (34). The top of the connecting block (34) is provided with a pneumatic telescopic rod (16). The top of the cylinder of the pneumatic telescopic rod (16) is provided with a top block (15). The top block (15) is slidably connected with the top groove (14). The top groove (14) is provided at the middle of the bottom of the upper frame (12). The bottom of both adjustment frames (20) is equipped with a limit plate (22).

3. The corn harvester header test platform clamping and conveying device according to claim 1, characterized in that: The upper side of the fixed frame (26) is provided with a groove (27) directly opposite the rear side of the limiting plate (22).

4. The corn harvester header test platform clamping and conveying device according to claim 1, characterized in that: The left side of the second clamping conveyor (9) is slidably connected to the top of the first clamping conveyor (8), and the left side of the second clamping conveyor (9) passes through the lower end of the first clamping conveyor (8).

5. The corn harvester header test platform clamping and conveying device according to claim 1, characterized in that: Both the clamping conveyor frame one (8) and the clamping conveyor frame two (9) have through holes (36) at equal intervals.

6. The corn harvester header test platform clamping and conveying device according to claim 2, characterized in that: Both of the limiting plates (22) are slidably connected inside the clamping conveyor frame one (8) and the clamping conveyor frame two (9), with the two limiting plates (22) being close to or far apart from each other.

7. The corn harvester header test platform clamping and conveying device according to claim 1, characterized in that: The clamping conveyor frame one (8) and clamping conveyor frame two (9) are inclined, with the left side of the clamping conveyor frame one (8) and clamping conveyor frame two (9) being higher than the right side.