Reel chain structure for harvesting corn

Abstract

The utility model discloses a reel chain structure for corn harvesting, and belongs to the technical field of reel chains. A grain pulling chain structure for corn harvesting comprises a plurality of transmission boxes fixed to the surface of a header rack, two ear picking plates are fixed to the surfaces of the transmission boxes, transmission shafts transversely rotate on the surfaces of the transmission boxes, and two output assemblies are symmetrically arranged on the surfaces of the transmission shafts. A mounting box used for protecting the output assembly is fixed to the upper surface of the transmission box. By arranging the separating assembly, the hydraulic rod drives the two bearing seats to move upwards, the second bevel gear and the first bevel gear are separated, power of the second bevel gear and the first chain wheel disappears, and the situation that the reel chain is broken due to continuous work when the reel chain is blocked is avoided; or the whole transmission shaft stops rotating due to the fact that the reel chain and the first chain wheel are clamped, other groups of reel chains are blocked, and the cleaning difficulty is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chain structure for harvesting corn. BACKGROUND

[0002] Corn harvester is a kind of agricultural machine that can complete the operations of ear picking, stacking and stalk returning to field in one time when corn is mature. The process flow is as follows: corn harvester is used to pick ears in the growing state of corn (referred to as standing stalk ear picking), and the ear handle is broken under the action of ear picking roller and ear picking plate. Due to the height difference between the inner and outer picking rollers, the ear falls into the ear box, and the ear is stacked after the box is opened.

[0003] At present, the corn combine harvester ear picker feeding chain does not have an independent safety protection structure, and most of them add a clutch at the total transmission of the cutting table to be responsible for the overload protection of the whole cutting table. However, for multi-row harvesters, if one or more rows are blocked in actual operation, the whole cutting table will stop rotating, and if the blockage is not found in time, it will lead to the blockage of other rows, increasing the difficulty of cleaning. Therefore, a chain structure is proposed to avoid affecting other chains when the chain is blocked. SUMMARY

[0004] The utility model aims at solving the problems in the prior art and provides a chain structure for harvesting corn.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A chain structure for harvesting corn, comprising a plurality of transmission boxes fixed on the surface of the cutting table frame, two ear picking plates fixed on the surface of the transmission box, a transmission shaft rotating horizontally on the surface of the transmission box, two groups of output components symmetrically arranged on the surface of the transmission shaft, an installation box fixed on the upper surface of the transmission box for protecting the output components, and a separation component arranged inside the installation box for stopping the transmission shaft from outputting power to the chain.

[0007] In some embodiments, the output component comprises a first bevel gear fixedly assembled on the surface of the transmission shaft, a connecting shaft vertically arranged inside the installation box, a second bevel gear fixed on the lower end of the connecting shaft and engaged with the first bevel gear, a bearing seat arranged inside the installation box, the connecting shaft rotatingly connected to the surface of the bearing seat through a bearing, and a first sprocket fixed on the upper end of the connecting shaft.

[0008] In some embodiments, the first sprocket is drivingly connected to the chain on the surface, two second sprockets are rotatingly arranged on the upper surface of the ear picking plate through a bearing, and the first sprocket and the two second sprockets are drivingly connected to the chain, and the two second sprockets are arranged at the middle and front end of the chain respectively.

[0009] In some embodiments, the separation assembly comprises a plurality of guide rods fixed on the upper surface of the transmission box, the bearing seat vertically slides on the surface of the plurality of guide rods, and a hydraulic rod for driving the two bearing seats to lift is fixed on the top of the inner wall of the mounting box.

[0010] In some embodiments, the upper surface of each of the plurality of first sprockets is fixed with a torque sensor.

[0011] In some embodiments, the upper surface of each of the plurality of ear picking plates is fixed with a protective cover, the inner wall of the protective cover is fixed with a guide rail near the side of the torque sensor, the surface of the torque sensor is fixed with a sliding block, and the sliding block vertically slides on the surface of the guide rail.

[0012] Compared with the prior art, the corn harvesting rake chain structure has the following beneficial effects.

[0013] 1、The separation assembly is arranged, the hydraulic rod drives the two bearing seats to move upward, the second bevel gear and the first bevel gear are separated, the power of the second bevel gear and the first sprocket disappears, the continuous work of the rake chain is avoided when the rake chain is blocked, the rake chain is prevented from being broken, or the rake chain and the first sprocket are prevented from being stuck to cause the whole transmission shaft to stop rotating, the rake chain of other groups is prevented from being blocked, and the cleaning difficulty is increased.

[0014] 2、The torque sensor is arranged, the rotating torque of the first sprocket is monitored, and an electric signal is sent in time to make the hydraulic rod work when the rake chain is abnormal.

[0015] Other advantages, objects and features of the present application will be apparent to those skilled in the art from the following description; and to some extent, it will be obvious to those skilled in the art based on the study of the following; or it can be taught from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a top view structure schematic diagram of the present application.

[0017] Figure 2 It is a top view structure schematic diagram of the present application after removing the protective cover.

[0018] Figure 3 It is a front view structure schematic diagram of the present application.

[0019] Figure 4 It is a front view structure schematic diagram of the transmission box in the present application.

[0020] Figure 5 It is a state schematic diagram of the first bevel gear and the second bevel gear after separation in the present application.

[0021] Figure 6 It is the bottom view section structure schematic diagram of the transmission case in the utility model.

[0022] Figure 7 It is the side view section structure schematic diagram of the utility model.

[0023] Figure 8 It is the utility model Figure 7 The enlarged structure schematic diagram of A place in the utility model.

[0024] In the drawing,

[0025] 1, transmission case;2, ear picking plate;3, header frame;4, transmission shaft;5, output assembly;501, first bevel gear;502, second bevel gear;503, connecting shaft;504, first sprocket;505, bearing seat;6, chain;7, second sprocket;8, separation assembly;801, guide rod;802, baffle ring;803, fixed plate;804, hydraulic rod;9, torque sensor;10, stem pulling assembly;1001, double-sided bevel gear;1002, stem pulling roller;1003, third bevel gear;11, protective cover;12, guide rail;13, sliding block;14, mounting box. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0027] Refer to Figures 1-8The utility model provides a kind of corn harvesting chain structure, including multiple fixed transmission box 1 on the surface of header frame 3, two ear picking plates 2 are fixed on the surface of transmission box 1, gap for making corn stalks drop is provided between two ear picking plates 2, transmission shaft 4 is transversely rotated on the surface of transmission box 1, two groups of output components 5 are symmetrically provided on the surface of transmission shaft 4, mounting box 14 for protecting output component 5 is fixed on the upper surface of transmission box 1, output component 5 includes first bevel gear 501 fixedly assembled on the surface of transmission shaft 4 and connecting shaft 503 vertically arranged in mounting box 14, second bevel gear 502 is fixed on the lower end of connecting shaft 503, first bevel gear 501 and second bevel gear 502 are engaged, bearing seat 505 is provided in mounting box 14, connecting shaft 503 is rotatably connected on the surface of bearing seat 505 by bearing, first sprocket 504 is fixed on the upper end of connecting shaft 503, ear picking plate 2 is rotatably provided with two second sprockets 7 on the upper surface by bearing, and the surface of first sprocket 504 is drivingly connected with chain 6, two second sprockets 7 are rotatably provided on the upper surface of ear picking plate 2 by bearing, and the surface of chain 6 is drivingly connected with two second sprockets 7, and two second sprockets 7 are arranged at the middle and front end of chain 6 respectively, a plurality of chain teeth are fixed on the surface of chain 6, a plurality of transmission boxes 1 are arranged side by side on the surface of header frame 3, and the transmission shafts 4 are drivingly connected by shaft coupling.

[0028] It can be understood that, by driving two first bevel gears 501 to rotate by transmission shaft 4, the connecting shaft 503 and the first sprocket 504 are driven to rotate on the surface of the bearing seat 505 under the meshing action of the first bevel gear 501 and the second bevel gear 502, and the two chains 6 are rolled under the action of the two second sprockets 7, so that the corn stalks are transported to the harvester by the chain teeth, and the chain 6 can be supported by arranging the second sprocket 7 in the middle of the chain 6, so as to avoid that the chain teeth do not have enough pulling force to drive the corn stalks due to the toughness deformation of the chain 6.

[0029] Specifically, the mounting box 14 is provided with a separation assembly 8 for separating the first bevel gear 501 and the second bevel gear 502, the separation assembly 8 includes a plurality of guide rods 801 fixed on the upper surface of the transmission box 1, the bearing seat 505 is vertically slid on the surface of the plurality of guide rods 801, the connecting shaft 503 is fixedly connected with a blocking ring 802 on the surface, the blocking ring 802 is rotatably connected on the upper surface of the bearing seat 505 by a plain bearing, the mounting box 14 is provided with a hydraulic rod 804 for driving the two bearing seats 505 to lift on the inner wall top, and the lower end of the hydraulic rod 804 is fixed on the side surface of the two bearing seats 505 by a fixed plate 803.

[0030] It can be understood that, by working of the hydraulic rod 804, the fixed plate 803 drives the two bearing seats 505 to move upward, and under the action of the blocking ring 802 and the plain bearing, the connecting shaft 503 and the second bevel gear 502 can be driven to move upward, so that the second bevel gear 502 and the first bevel gear 501 are separated, and the first bevel gear 501 and the second bevel gear 502 are separated.Figure 5 The power of the second bevel gear 502 and the first sprocket 504 disappears, avoiding continuous work when the rake chain 6 is blocked, causing the rake chain 6 to break, or the rake chain 6 and the first sprocket 504 to be stuck, causing the entire transmission shaft 4 to stop rotating, causing the rake chain 6 of other groups to be blocked, increasing the difficulty of cleaning. After the connecting shaft 503 and the first sprocket 504 rise to a certain height, the first sprocket 504 is not at the same height as the two second sprockets 7, but at this time the multiple sprockets stop moving with the rake chain 6, and the rake chain 6 itself is deformable, therefore, the lifting of the first sprocket 504 does not affect the connection relationship between the rake chain 6 and the two second sprockets 7.

[0031] Specifically, the upper surface of each of the plurality of first sprockets 504 is fixed with a torque sensor 9.

[0032] It can be understood that by arranging the torque sensor 9, the rotation torque of the first sprocket 504 is monitored, and when the torque of the first sprocket 504 is greater than a preset value, it indicates that the rake chain 6 is abnormal, an electrical signal is sent to make the hydraulic rod 804 work, and the transmission shaft 4 stops outputting power to the rake chain 6.

[0033] Specifically, a stem pulling assembly 10 is arranged below the ear picking plate 2, the stem pulling assembly 10 includes a double-sided bevel gear 1001 fixedly arranged on the surface of the transmission shaft, and two stem pulling rollers 1002 rotationally connected to the surface of the transmission box 1, one end of each of the two stem pulling rollers 1002 inside the transmission box 1 is fixedly provided with a third bevel gear 1003, and the two third bevel gears 1003 are respectively engaged with the two sides of the double-sided bevel gear 1001. The surface of each of the two stem pulling rollers 1002 is fixedly provided with a plurality of toothed plates, the plurality of toothed plates are relatively connected in the rotation process, and the connection position of the toothed plates is located directly below the gap between the two ear picking plates 2. Figure 3 .

[0034] It can be understood that the double-sided bevel gear 1001 is driven to rotate while the transmission shaft 4 rotates, and the two stem pulling rollers 1002 are driven to rotate in opposite directions under the engagement relationship between the double-sided bevel gear 1001 and the two third gears, so as to pull the corn stalks downward through the connection and rotation of the toothed plates. In the process of falling downward between the two ear picking plates 2, the corn on the surface of the corn stalks is separated by the two ear picking plates 2.

[0035] Specifically, the upper surface of each of the plurality of ear picking plates 2 is fixed with a protective cover 11, the inner wall of the protective cover 11 is fixed with a guide rail 12 near the side of the torque sensor 9, the surface of the torque sensor 9 is fixed with a sliding block 13, and the sliding block 13 vertically slides on the surface of the guide rail 12.

[0036] It can be understood that when the separating assembly 8 drives the first sprocket 504 to rise, the torque sensor 9 slides upward on the surface of the guide rail 12 through the sliding block 13, so as to achieve the purpose of cooperating with the first sprocket 504.

[0037] The utility model discloses, through the driving shaft 4 drive two first bevel gears 501 carry out rotation, under the meshing effect of first bevel gear 501 and second bevel gear 502, thereby drive connecting axle 503 and first sprocket 504 rotate on the surface of bearing seat 505, under the effect of two second sprocket 7, thereby make two rake chain 6 roll, through the corn stalk of rake tooth to the harvester delivery, while the driving shaft 4 rotates, double-sided bevel gear 1001 drive two stalk roller 1002 rotate to the opposite direction simultaneously, through the docking and rotation of toothed plate to pull down the corn stalk, in the process of falling down between two earing plate 2, through two earing plate 2 to separate the corn on the surface of corn stalk, by the corn of rake tooth to push into the harvester, under the effect of torque sensor 9, monitor the rotation torque of first sprocket 504, when the torque of first sprocket 504 is greater than the preset value, show that rake chain 6 is abnormal, send the electric signal and make hydraulic rod 804 work, through fixed plate 803 drive two bearing seat 505 to move upwards, make second bevel gear 502 and first bevel gear 501 separate, the power of second bevel gear 502 and first sprocket 504 disappears, avoid the continuous work when the rake chain 6 is jammed and lead to the breakage of rake chain 6, or the rake chain 6 and first sprocket 504 are jammed and lead to the whole driving shaft 4 stop, lead to the jam of other group's rake chain 6, increase the difficulty of cleaning.

[0038] The above merely describes a preferred embodiment of the utility model, and the protection scope of the utility model is not limited to this, and any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

[0039] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0040] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A corn harvesting chain structure comprising a plurality of transmission boxes (1) fixed on the surface of a header frame (3), the surface of the transmission boxes (1) being fixed with two ear picking plates (2), characterized in that, The transmission case (1) surface transverse rotation has transmission shaft (4), the transmission shaft (4) surface symmetry is provided with two groups of output components (5), the transmission case (1) upper surface is fixed for the installation box (14) for the protection of output component (5), the installation box (14) inside is provided with for the transmission shaft (4) stops the separation component (8) for making transmission power to the chain (6) output.

2. A corn picker chain structure according to claim 1, wherein The output component (5) includes the first bevel gear (501) fixedly assembled on the surface of the transmission shaft (4) and the connecting shaft (503) vertically arranged in the inside of the installation box (14), the connecting shaft (503) lower end is fixed with the second bevel gear (502) engaged with the first bevel gear (501), the installation box (14) is provided with bearing seat (505), the connecting shaft (503) is rotatably connected on the surface of bearing seat (505) through bearing, the connecting shaft (503) upper end is fixed with the first sprocket (504).

3. A corn picker chain structure according to claim 2, wherein The first sprocket (504) surface transmission is connected with the chain (6), the upper surface of the ear picking plate (2) is rotatably provided with two second sprockets (7) through bearing, the first sprocket (504) and two second sprockets (7) surface transmission is connected with the chain (6), two the second sprocket (7) is arranged in the middle and the front end of the chain (6) respectively.

4. A corn picker chain structure according to claim 2, wherein The separation component (8) includes a plurality of guide rods (801) fixed on the upper surface of the transmission case (1), the bearing seat (505) vertically slides on the surface of a plurality of guide rods (801), the inner wall of the installation box (14) top is fixed with the hydraulic rod (804) for driving two bearing seats (505) to lift.

5. A corn picker chain structure according to claim 2, wherein A plurality of the first sprocket (504) upper surface is fixed with torque sensor (9).

6. A corn picker finger structure according to claim 5 wherein, A plurality of the ear picking plate (2) upper surface is fixed with the protective cover (11), the inner wall of the protective cover (11) is fixed with the guide rail (12) near torque sensor (9) side, the surface of torque sensor (9) is fixed with the sliding block (13), the sliding block (13) vertically slides on the surface of guide rail (12).

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