Agricultural material conveying device of harvester

Abstract

The present invention discloses an agricultural material conveying device for a harvester, which includes a conveying pipe and a circulating transmission assembly placed in the conveying pipe; the circulating transmission assembly includes a conveying wheel and a circulating unit; a plurality of equidistantly arranged sending rods are installed on the circulating unit, and the sending rods are installed perpendicular to the circulating unit; the circulating transmission assembly is arranged centrally relative to the sending rods; the sending rods can adaptively twist relative to the circulating unit, and the torsion axis is substantially parallel to the extension direction of the circulating unit. With the above structure, since the circulating unit is placed in the middle of the sending rod, it can drive the sending rod to move while having less restrictions on the sending rod. The sending rod can adaptively twist relative to the circulating unit to adapt to the situation where the amount of material on the left and right may be uneven. The sending rod can not only locally compact and send the material, but also reduce the running resistance and improve the sending effect.

Description

Technical Field

[0001] The present invention relates to the technical field of material conveying, in particular to an agricultural material conveying device of a harvester. Background Art

[0002] During the process of harvesting crops with a harvester, the harvested crops need to be transported between different parts of the harvester, so a conveying device needs to be provided. The existing conveying device generally includes a chain conveying device arranged in a pipeline. For example, patent CN 110839416A in the prior art discloses a typical conveying device, which includes at least two sets of parallel transmission chains, with conveying bars overlapping between the transmission chains. When conveying materials, the conveying bars support the movement of the agricultural materials, and the feeding uniformity of the agricultural materials is unstable. When the agricultural materials are more on one side and less on the other side in the left and right directions, since both ends of the conveying bars are fixed and cannot be adjusted, the materials are easily blocked in the conveying pipeline. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides an agricultural material conveying device for a harvester that can adapt to changes in material quantity and change its posture to prevent blockage.

[0004] Technical Solution: To achieve the above-mentioned object, the agricultural material conveying device of the harvester of the present invention comprises a conveying pipe and a circulating conveying assembly disposed in the conveying pipe; the circulating conveying assembly comprises at least two conveying wheels and a circulating unit disposed around all the conveying wheels; the circulating unit is mounted with a plurality of equidistantly arranged shifting rods, the shifting rods being mounted perpendicular to the circulating unit;

[0005] The circulating transmission component is arranged centrally relative to the sending rod; the sending rod can be adaptively twisted relative to the circulating unit to change its posture, and its twisting axis is basically parallel to the extension direction of the circulating unit.

[0006] Furthermore, the circulation unit is a chain, and the conveying wheel is a sprocket; the circulation unit has a connecting link with a mounting lug, and the sending rod is connected to the circulation unit via the connecting link. Since the chain itself has anti-torsion ability, it can prevent the sending rod from twisting in other directions and affecting the conveying effect.

[0007] In one solution, the above-mentioned sending rod can utilize the assembly gap of the chain to achieve adaptive torsion, but in this solution, the torsion angle of the sending rod is small, and there is a problem that the torsion angle of the part far from the transmission wheel is large, and the torsion angle of the part close to the transmission wheel is small.

[0008] Furthermore, the sending rod is rotatably mounted relative to the connecting link, and the sending rod is connected to the chain assembly via an elastic mechanism.

[0009] Furthermore, a connecting block is fixed on the connecting chain link, and the middle part of the sending rod is rotatably installed relative to the connecting block; the elastic mechanism includes an elastic sheet, which is symmetrically installed relative to the connecting block, and the two ends of the elastic sheet respectively abut against the two sides of the sending rod.

[0010] Specifically, the bottom of the connecting block has a positioning groove, into which the middle portion of the elastic sheet fits. The connecting block is connected to the connecting link via screws that pass through the elastic sheet. The connecting block and the middle portion of the connecting link clamp the elastic sheet in place. Each end of the elastic sheet has an outwardly folded flange, which is connected to the deflector lever via rivets. This structural layout provides the elastic sheet with ample room for elastic deformation, allowing the deflector lever to achieve a large elastic torsion angle. Furthermore, the deflector lever and the elastic sheet can be simultaneously mounted via the same connecting block, making installation convenient.

[0011] Furthermore, the ends of all the sending rods are connected in series via an elastic strip, which is preferably an elastic steel sheet that can effectively pull the ends of adjacent sending rods.

[0012] Furthermore, the cross section of the feeding rod is L-shaped, comprising a flat plate portion connected to the circulation unit and a vertical plate portion perpendicular to the flat plate portion; the outer edge of the vertical plate portion is wavy. The flange portion is connected to the flat plate portion.

[0013] Furthermore, an observation window is provided on the upper tube wall of the main body of the conveying pipeline, and a sieve hole is provided on the lower tube wall of the main body, so that impurities such as mud can be discharged from the sieve hole during the conveying process.

[0014] Furthermore, one side of the observation window is rotatably connected to the main body, and the other side of the observation window is connected to the main body via a lock. Through the observation window, it is possible to observe whether there is a blockage in the conveying pipe. If a blockage occurs, the observation window can be opened to clear the blockage.

[0015] During operation, the conveying wheel rotates and the sending rod on the front side moves from bottom to top, so as to compact the agricultural materials entering the conveying pipe from bottom to top, and move the agricultural materials from front to back along the wall of the conveying pipe. The soil and impurities that fall during the process can be discharged from the sieve holes, reducing the difficulty of subsequent processing.

[0016] Beneficial effects: The agricultural material conveying device of the harvester of the present invention has the following beneficial effects:

[0017] (1) The circulation unit is placed in the middle of the feeding rod, which can drive the feeding rod to move while having few restrictions on the feeding rod. The feeding rod can adaptively twist relative to the circulation unit to adapt to the situation where the amount of material on the left and right may be uneven. The feeding rod can not only locally compact and feed the material, but also reduce the running resistance and improve the feeding effect.

[0018] (2) The connection between the sending rod, the elastic structure and the chain is reasonable, which enables the sending rod to have a larger elastic torsion angle.

[0019] (3) The strips can be used to establish a connection between adjacent sending rods, so that the deformation of the elastic sheets corresponding to the adjacent sending rods is continuous, that is, the postures of the adjacent sending rods are continuous, which can improve the compaction and sending effect of agricultural materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A first-person perspective structural diagram of an agricultural material conveying device for a harvester;

[0021] Figure 2 A second perspective structural diagram of the agricultural material conveying device of the harvester;

[0022] Figure 3 It is a cross-sectional structural diagram of an agricultural material conveying device of a harvester;

[0023] Figure 4 A structural diagram of a circulating transmission component in one embodiment;

[0024] Figure 5 A structural diagram of a circulating transmission component in another embodiment;

[0025] Figure 6 for Figure 5 A magnified structural diagram of part A;

[0026] Figure 7 It is a structural diagram of the circulating transmission component in the preferred embodiment;

[0027] Figure 8 It is a cross-sectional structural diagram of an agricultural material conveying device in a preferred embodiment.

[0028] In the figure: 1-conveying pipe; 11-observation window; 12-main body; 13-sieve hole; 14-locking buckle; 2-circulating conveying assembly; 21-circulating unit; 21a-connecting chain link; 22-delivery rod; 23-transmission wheel; 24-connecting block; 241-positioning groove; 25-elastic sheet; 25a-flanged part; 26-strip; 27-screw; 28-roller; 29-guide strip; 210-elastic telescopic device. DETAILED DESCRIPTION

[0029] The present invention will be further described below with reference to the accompanying drawings.

[0030] like Figure 1-3 The agricultural material conveying device of the harvester shown includes a conveying pipe 1 and a circulating conveying assembly 2 disposed within the conveying pipe 1. The circulating conveying assembly 2 includes at least two conveying wheels 23 and a circulating unit 21 disposed around all of the conveying wheels 23. The circulating unit 21 is mounted with a plurality of equally spaced feed rods 22, which are mounted perpendicular to the circulating unit 21. Specifically, the circulating conveying assembly 2 is centrally located relative to the feed rods 22. The feed rods 22 are capable of adaptively twisting relative to the circulating unit 21 to change their posture, and their torsion axis is substantially parallel to the extension direction of the circulating unit 21.

[0031] With the above structure, since the circulation unit 21 is placed in the middle of the sending rod 22, it can drive the sending rod 22 to move while having less restrictions on the sending rod 22. The sending rod 22 can adaptively twist relative to the circulation unit 21 to adapt to the situation where the amount of materials on the left and right may be uneven. The sending rod 22 can not only locally compact and send the material, but also reduce the running resistance and improve the sending effect.

[0032] like Figure 4 As shown, the circulation unit 21 is a chain, and the conveying wheel is a sprocket. The circulation unit 21 has a connecting link 21a with a mounting lug, and the sending rod 22 is connected to the circulation unit 21 via the connecting link 21a. Because the chain itself has anti-twist properties, it can prevent the sending rod 22 from twisting in other directions and affecting the conveying effect.

[0033] In one solution, the above-mentioned sending rod 22 can utilize the assembly gap of the chain to achieve adaptive twisting, but in this solution, the twisting angle of the sending rod 22 is small, and there is a problem that the twisting angle of the part far away from the transmission wheel 23 is large, and the twisting angle of the part close to the transmission wheel 23 is small.

[0034] Therefore, in a preferred embodiment, Figure 5 As shown, the sending rod 22 is rotatably installed relative to the connecting link 21 a, and the sending rod 22 is connected to the chain assembly 5 through an elastic mechanism.

[0035] A connecting block 24 is fixed on the connecting link 21a, and the middle part of the sending rod 22 is rotatably installed relative to the connecting block 24; the elastic mechanism includes an elastic sheet 25, which is symmetrically installed relative to the connecting block 24, and the two ends of the elastic sheet 25 respectively abut against the two sides of the sending rod 22.

[0036] Specifically, if Figure 6As shown, the bottom of the connecting block 24 has a positioning groove 241, and the middle part of the elastic piece 25 is embedded in the positioning groove 241. The connecting block 24 is connected to the connecting link 21a via a screw 27. The screw 27 also passes through the elastic piece 25. The connecting block 24 and the middle part of the connecting link 21a clamp the elastic piece 25 in place. The ends of the elastic piece 25 each have an outward-folded flange 25a, and the flange 25a is connected to the feed rod 22 via rivets. With this structural layout, the elastic piece 25 has a larger elastic deformation space, which enables the feed rod 22 to have a larger elastic torsion angle. In addition, the feed rod 22 and the elastic piece 25 can be installed simultaneously through the same connecting block 24, making installation convenient.

[0037] Preferably, if Figure 7 As shown, the ends of all the levers 22 are connected in series via an elastic strip 26. The strip 26 is preferably a resilient steel sheet that effectively pulls the ends of adjacent levers 22. This strip 26 establishes a connection between adjacent levers 22, ensuring continuity in the deformation of the elastic sheets 25 corresponding to adjacent levers 22. This also ensures continuity in the posture of adjacent levers 22, thereby enhancing the compaction and delivery of agricultural materials.

[0038] The feeding rod 22 has an L-shaped cross section and includes a flat plate portion connected to the circulation unit 21 and a vertical plate portion perpendicular to the flat plate portion; the outer edge of the vertical plate portion is wavy. The flange portion 25a is connected to the flat plate portion.

[0039] The main body 12 of the conveying pipe 1 is provided with an observation window 11 on its upper wall, and a sieve hole 13 on its lower wall, through which dirt and other impurities can be discharged during conveying. One side of the observation window 11 is pivotally connected to the main body 12, while the other side is connected to the main body 12 via a lock 14. Through the observation window 11, it is possible to observe whether there is a blockage in the conveying pipe 1. If a blockage occurs, the observation window 11 can be opened to clear the blockage.

[0040] During operation, the conveying wheel 23 rotates and the sending rod 22 located on the front side moves from bottom to top, so as to compact the agricultural materials entering the conveying pipe 1 from bottom to top, and move the agricultural materials from front to back along the wall of the conveying pipe 1. During the process, the soil and impurities that fall can be discharged from the sieve hole 13, reducing the difficulty of subsequent processing.

[0041] Preferably, if Figure 8As shown, each of the levers 22 is mounted with a roller 28 at its end, and a wavy guide bar 29 is mounted on the inner sidewall of the conveying pipe 1. When the circulation unit 21 moves the levers 22, the rollers 28, guided by the guide bars 29, rise and fall, causing the levers 22 to actively swing left and right, thereby promoting the removal of clods from the agricultural material. To prevent the guide bars 29 from restricting the adaptive rotation of the levers 22, the rollers 28 are connected to the levers 22 via an elastic telescopic device 210.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An agricultural material conveying device for a harvester, comprising a conveying pipe (1) and a circulating conveying assembly (2) disposed in the conveying pipe (1); the circulating conveying assembly (2) comprising a conveying wheel (23) and a circulating unit (21) disposed around the conveying wheel; the circulating unit (21) is provided with a plurality of equally spaced shifting rods (22), the shifting rods (22) being installed perpendicular to the circulating unit (21); and characterized in that: The circulating transmission assembly (2) is centrally arranged relative to the sending rod (22); the sending rod (22) is capable of adaptively twisting relative to the circulating unit (21), and its twisting axis is substantially parallel to the extension direction of the circulating unit (21); The circulation unit (21) has a connecting link (21a) with a mounting ear, a connecting block (24) is fixed on the connecting link (21a), and the middle part of the sending rod (22) is rotatably mounted relative to the connecting block (24); the sending rod (22) is connected to the connecting link (21a) via an elastic mechanism, and the elastic mechanism includes an elastic sheet (25), and the elastic sheet (25) is symmetrically mounted relative to the connecting block (24), and the two ends of the elastic sheet (25) are respectively connected to the two sides of the sending rod (22).

2. The agricultural material conveying device of the harvester according to claim 1, characterized in that: The circulation unit (21) is a chain, and the transmission wheel (23) is a sprocket.

3. The agricultural material conveying device for a harvester according to claim 1, characterized in that: The ends of all the sending rods (22) are connected in series via elastic strips (26).

4. The agricultural material conveying device for a harvester according to claim 1, characterized in that: The sending rod (22) has an L-shaped cross section and comprises a flat plate portion connected to the circulation unit (21) and a vertical plate portion perpendicular to the flat plate portion; the outer edge of the vertical plate portion is wavy.

5. The agricultural material conveying device for a harvester according to claim 1, characterized in that: An observation window (11) is provided on the upper tube wall of the main body (12) of the delivery pipe (1).

6. The agricultural material conveying device for a harvester according to claim 5, characterized in that: One side of the observation window (11) is rotatably connected relative to the main body (12), and the other side of the observation window (11) is connected to the main body (12) via a lock buckle (14).

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