A rotational moulded corn harvester boot

Abstract

This utility model discloses a rotationally molded corn harvester guard, belonging to the technical field of agricultural machinery parts. It includes a corn harvester, fork arm guard plates, a header tip, and a header guard. Fork arm guard plates are respectively installed on both sides of each fork arm of the corn harvester. The lower end of the fork arm guard plate is rotatably connected to the fork arm, and the upper end of the fork arm guard plate is connected to the fork arm via a hinge. A header tip is installed at the front end of each fork arm, and a header guard is installed on the fork arm at the rear end of the header tip, rotatably connected to the header tip. This utility model replaces the traditional sheet metal guard with a hollow rotationally molded guard, solving the problems of difficult manufacturing, short service life, and difficulty in repair of irregularly shaped sheet metal guards. The rotationally molded guard has a simple manufacturing process, can be integrally molded, has high strength, long service life, and can be adapted to agricultural machinery products of different shapes, better fitting the structure of the agricultural machinery, reducing wear during operation, and is highly practical and economically efficient.

Description

Technical Field

[0001] This utility model belongs to the technical field of agricultural machinery parts, specifically relating to a rotationally molded corn harvester cover. Background Technology

[0002] With the continuous development of machinery, agricultural machinery is gradually replacing manual labor, improving the efficiency of harvesting agricultural products. Among them, the corn harvester is an agricultural implement that mechanically completes multiple operations such as ear picking, stacking, and stalk return to the field in one pass when corn is mature. The corn harvester picks ears while the corn is still growing (called standing ear picking). Under the action of the picking rollers and picking plates, the ear stalks are broken off. Due to the height difference between the inner and outer picking rollers, the ears fall into the ear box. After the box is full, the ears are opened and stacked. However, existing corn harvesters use sheet metal parts as protective covers (see [link to relevant documentation]). Figure 16 As shown, the mechanical structure inside the corn harvester is complex, and the sheet metal parts are difficult to process into irregular shapes. They can only partially fit the corn harvester, resulting in weak protection and poor fit. The guard at the front tip of the corn harvester's header needs to be in constant contact with the corn stalks, making it a wear-prone part. Furthermore, it is difficult to adjust the angle of the front tip of the header, resulting in poor adaptability to corn stalks of different heights. Utility Model Content

[0003] The purpose of this utility model is to solve the problems of short service life, high processing difficulty, limited application scenarios, and insufficient protection performance of traditional sheet metal corn harvester covers, and to provide a rotationally molded corn harvester cover.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A rotationally molded corn harvester guard includes a corn harvester, fork arm guards, header tip, and header guard.

[0006] Fork arm guards are installed on both sides of each fork arm of the corn harvester. The lower end of the fork arm guard is rotatably connected to the fork arm, and the upper end of the fork arm guard is connected to the fork arm by a hinge. Each fork arm has a front tip for the header, and a header guard is installed on the fork arm at the rear end of the header tip. The header guard is rotatably connected to the header tip.

[0007] Furthermore, a raised outer guard plate is provided on the outer side of the fork arm guard plate, and a flip-up connector is provided at the lower end of the inner side of the outer guard plate. The flip-up connector is rotatably connected to the fork arm by bolts.

[0008] Furthermore, a reinforcing rib is provided on the inner side of the outer protective plate above the flip connector, and three reinforcing vertices are provided at equal intervals on the reinforcing rib, with the reinforcing vertices connecting to the outer protective plate.

[0009] Furthermore, a U-shaped inner bracket is integrally formed on the side of the outer guard plate near the fork arm, with the inner bracket opening downwards and a guard plate hinge mounting hole provided at the top of the inner bracket.

[0010] Furthermore, the front tip of the cutting table is a triangular cone block with a hollow interior. The front tip of the cutting table has a front tip reinforcing rib inside. Angle adjustment holes are provided at both ends of the front tip reinforcing rib near the side of the cutting table cover. A front tip connector is provided on the front tip of the cutting table below the angle adjustment holes. The front tip connector is used to rotate and connect with the cutting table cover.

[0011] Furthermore, the cutter guard is hollow inside and has reinforcing ribs. A guard connector is provided at one end of the cutter guard outside the cutter guard. The guard connector is adapted to the front tip connector and is rotatably connected to the front tip connector. It is fixed by bolts. A guard hinge mounting hole is provided at the other end of the cutter guard.

[0012] Furthermore, oil injection holes are provided on both sides of the hinge mounting hole of the protective cover, and a reinforcing bushing hole is provided on the inner side of the cutter cover at the end where the protective cover connector is located. A reinforcing bushing is provided in the reinforcing bushing hole, and a reinforcing bolt is provided in the reinforcing bushing.

[0013] Furthermore, angle adjustment blocks are provided at both ends of the reinforced bushing hole, and the positions of the angle adjustment blocks correspond to the positions of the angle adjustment holes.

[0014] Furthermore, an angle adjustment bolt is installed inside the angle adjustment hole.

[0015] The beneficial effects of this utility model are:

[0016] 1. This utility model, through its rationally designed structure, replaces the traditional sheet metal cover with a hollow rotomolded cover, solving the problems of difficult manufacturing, short service life, and difficulty in repair of irregularly shaped sheet metal covers. This utility model is designed as a rotomolded cover that can be integrally molded, with a simple manufacturing process, high strength, and long service life. The rotomolded material can better adapt to agricultural machinery products of different shapes, fit the structure of agricultural machinery better, reduce wear during operation, and has strong practicality and high economic benefits.

[0017] 2. This utility model protects the fork arm by designing a fork arm guard plate. The outer guard plate improves the buffering performance of the fork arm guard plate, and the internal reinforcing rib structure enhances the strength of the fork arm guard plate. The guard plate hinge mounting holes and flip connectors allow the fork arm guard plate to be opened and closed, facilitating the maintenance and lubrication of the gear and chain parts inside the fork arm. The reinforcing apex provides support between the inner and outer walls of the fork arm guard plate, reducing the deformation difference between the inner and outer walls of the hollow fork arm guard plate and improving the service life of the fork arm guard plate.

[0018] 3. The cutting platform tip and cutting platform cover designed in this utility model have angle adjustment holes and angle adjustment top blocks, so that the bolts on the angle adjustment holes can be adjusted in length. By adjusting the length of the bolts, the distance between the cutting platform tip and the cutting platform cover can be adjusted, thereby adjusting the tilt angle between the cutting platform tip and the cutting platform cover. By designing reinforced bushing holes, the reinforced bushings protect the easily worn bolt connections, making them easy to replace and improving wear resistance and service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 for Figure 1 Top view;

[0021] Figure 3 This is a schematic diagram of the fork arm guard plate structure;

[0022] Figure 4 This is a schematic diagram of the outer structure of the fork arm guard plate;

[0023] Figure 5 This is a schematic diagram of the inner mechanism of the fork arm guard plate;

[0024] Figure 6 This is a top view of the fork arm guard plate;

[0025] Figure 7 A schematic diagram of the overall structure of the header tip and header guard;

[0026] Figure 8 for Figure 7 Horizontal sectional view;

[0027] Figure 9 This is a sectional view of the front tip of the cutting table.

[0028] Figure 10 This is a cross-sectional view of the cutter head cover;

[0029] Figure 11 for Figure 8 Enlarged view of point A in the middle;

[0030] Figure 12 This is a schematic diagram of the outer structure of the fuel tank guard plate;

[0031] Figure 13 This is a schematic diagram of the inner structure of the fuel tank guard plate;

[0032] Figure 14 This is a top view of the fuel tank liner;

[0033] Figure 15 This is a bottom view of the fuel tank guard plate;

[0034] Figure 16This is a schematic diagram of an existing skinning machine;

[0035] In the diagram: 1. Fork arm guard plate; 101. Outer guard plate; 102. Inner support; 103. Guard plate hinge mounting hole; 104. Reinforced apex; 105. Tilting connector; 106. Guard plate reinforcing rib; 2. Header front tip; 201. Front tip connector; 202. Angle adjustment hole; 2021. Angle adjustment bolt; 203. Front tip reinforcing rib; 3. Header cover; 301. Oil injection hole; 302. Cover connector; 303. Cover hinge mounting hole; 304. Reinforcing bushing hole; 305. Cover reinforcing rib; 306. Angle adjustment top block; 4. Oil tank guard plate; 401. Oil tank cover; 402. Oil outlet; 403. Oil tank reinforcing rib; 404. Oil tank reinforcing hole; 405. Oil tank slot; 406. Oil tank fixing hole; 407. Irregularly shaped reinforcing rib; 5. Corn harvester. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Example 1: Please refer to Figures 1-2 As shown, a rotational molding corn harvester guard includes a fork arm guard plate 1, a header tip 2, a header guard plate 3, and a fuel tank guard plate 4.

[0038] Fork arm guard plates 1 are respectively installed on both sides of each fork arm of the corn harvester 5. The lower end of the fork arm guard plate 1 is rotatably connected to the fork arm, and the upper end of the fork arm guard plate 1 is connected to the fork arm through a hinge. A front tip 2 of the header is provided at the front end of each fork arm. A header guard 3 is provided on the fork arm at the rear end of the header tip 2. The header guard 3 is rotatably connected to the header tip 2. The oil tank guard plate 4 is installed at the oil tank of the corn harvester 5.

[0039] Please see Figures 3-6As shown, the fork arm guard plate 1 is a hollow rotational molded part. A raised outer guard plate 101 is provided on the outer side of the fork arm guard plate 1 for protection and buffering against external impacts. A flip-up connector 105 is provided at the lower inner end of the outer guard plate 101. The flip-up connector 105 is rotatably connected to the fork arm by bolts, facilitating the flipping of the fork arm guard plate 1 to a horizontal position for easy inspection and maintenance of the mechanical parts inside the fork arm. A guard plate reinforcing rib 106 is provided on the inner side of the outer guard plate 101 above the flip-up connector 105. A U-shaped inner bracket 102 is integrally formed on the side of the outer guard plate 101 near the fork arm, with the opening of the inner bracket 102 facing... The inner bracket 102 is close to the sheet metal parts on the fork arm, which is conducive to the fastening of the fork arm guard plate 1 on the fork arm; the top of the inner bracket 102 is provided with a guard plate hinge mounting hole 103 for connecting with the hinge on the fork arm, and the hinge can control the flip angle of the fork arm guard plate 1; three reinforcing vertices 104 are equidistantly arranged on the guard plate reinforcing rib 106, and the reinforcing vertices 104 are connected from the guard plate reinforcing rib 106 to the outer guard plate 101. The reinforcing vertices 104 form a fulcrum in the hollow fork arm guard plate 1, reducing the deformation caused by uneven stress on the inner side of the fork arm guard plate 1 and the outer guard plate 101 due to the hollow structure.

[0040] Please see Figures 7-11 As shown, the front tip 2 of the cutting table is a triangular cone block with a hollow interior. The front tip 2 is equipped with a front tip reinforcing rib 203. Angle adjustment holes 202 are provided at both ends of the front tip reinforcing rib 203 near the cutting table cover 3. A front tip connector 201 is provided on the front tip 2 below the angle adjustment hole 202. The front tip connector 201 is used to rotate and connect with the cutting table cover 3.

[0041] The header cover 3 is hollow inside and equipped with reinforcing ribs 305. A cover connector 302 is located at one end of the outer side of the header cover 3. The cover connector 302 is adapted to the front tip connector 201 and is rotatably connected to the front tip connector 201, secured by bolts. The other end of the header cover 3 has a cover hinge mounting hole 303. Oil injection holes 301 are located on both sides of the cover hinge mounting hole 303 for adding lubricating oil to the header cover 3, facilitating chain lubrication in the corn harvester 5 header. A reinforcing bushing hole 304 is provided inside the cutter guard 3 at the end where the cover connector 302 is located. A reinforcing bushing is provided inside the reinforcing bushing hole 304, and a reinforcing bolt is provided inside the reinforcing bushing. The reinforcing bolt can provide support force to the front tip 2 of the cutter, thereby improving the strength of the front tip 2 of the cutter. The reinforcing bushing can improve wear resistance and service life. When the reinforcing bushing is worn, only the reinforcing bushing needs to be replaced. Angle adjustment top blocks 306 are provided at both ends of the reinforcing bushing hole 304. The position of the angle adjustment top blocks 306 corresponds to the position of the angle adjustment hole 202.

[0042] An angle adjustment bolt 2021 is provided in the angle adjustment hole 202. The included angle formed by the front tip 2 of the cutting table and the cutting table cover 3 is adjusted by controlling the distance between the angle adjustment bolt 2021 and the angle adjustment top block 306.

[0043] Please see Figures 12-15 As shown, the fuel tank guard plate 4 is rectangular and hollow inside. The top of the fuel tank guard plate 4 is provided with a fuel tank cover 401 and the bottom is provided with a lower fuel inlet 402. The outer side of the fuel tank guard plate 4 is provided with a raised fuel tank reinforcing rib 403, and the inner side of the fuel tank guard plate 4 is provided with a recessed fuel tank reinforcing rib 403. The inner fuel tank reinforcing rib 403 is provided with an irregular reinforcing rib 407. The shape of the irregular reinforcing rib 407 is adapted to the corn harvester 5 parts on the inner side of the fuel tank guard plate 4, which improves the flatness of the fit between the fuel tank guard plate 4 and the corn harvester 5 and improves the buffer protection function of the fuel tank guard plate 4.

[0044] Two fuel tank reinforcement holes 404 are provided through the fuel tank guard plate 4. The fuel tank reinforcement holes 404 can provide support for the hollow fuel tank guard plate 4, reduce the expansion of the fuel tank, and reduce the deformation of the inner and outer walls of the fuel tank.

[0045] The oil tank guard plate 4 has vertically penetrating oil tank slots 405 at both ends, which are used to lock the oil tank guard plate 4 into the corn harvester 5. The oil tank slots 405 have horizontally penetrating oil tank fixing holes 406, and the oil tank guard plate 4 is fixed to the sheet metal parts of the corn harvester 5 by bolts passing through the oil tank fixing holes 406.

[0046] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A rotational moulded corn harvester guard comprising a corn harvester (5) characterised in that, It also includes a fork arm guard plate (1), a front tip of the cutting table (2), and a cutting table guard (3); The fork arm guard plate (1) is respectively set on both sides of each fork arm of the corn harvester (5). The lower end of the fork arm guard plate (1) is rotatably connected to the fork arm, and the upper end of the fork arm guard plate (1) is connected to the fork arm through a hinge. A cutting head tip (2) is set at the front end of each fork arm. A cutting head cover (3) is set on the fork arm at the rear end of the cutting head tip (2). The cutting head cover (3) is rotatably connected to the cutting head tip (2).

2. The rotomolded corn harvester cover according to claim 1, characterized in that, The fork arm guard plate (1) is provided with a raised outer guard plate (101) on the outside, and a flip connector (105) is provided at the lower end of the inner side of the outer guard plate (101). The flip connector (105) is rotatably connected to the fork arm by bolts.

3. The rotomolded corn harvester cover according to claim 2, characterized in that, The inner side of the outer protective plate (101) above the flip connector (105) is provided with a protective plate reinforcing rib (106), and three reinforcing vertices (104) are provided at equal intervals on the protective plate reinforcing rib (106), and the reinforcing vertices (104) are connected from the protective plate reinforcing rib (106) to the outer protective plate (101).

4. The rotomolded corn harvester cover according to claim 3, characterized in that, The outer guard plate (101) is provided with a U-shaped inner bracket (102) on the side near the fork arm. The inner bracket (102) has an opening facing downwards, and the top of the inner bracket (102) is provided with a guard plate hinge mounting hole (103).

5. A rotationally molded corn harvester cover according to claim 1, characterized in that, The cutting platform tip (2) is a triangular cone block with a hollow interior. The cutting platform tip (2) has a front tip reinforcing rib (203) inside. Angle adjustment holes (202) are provided at both ends of the front tip reinforcing rib (203) near the cutting platform cover (3). A front tip connector (201) is provided on the cutting platform tip (2) below the angle adjustment hole (202). The front tip connector (201) is used to rotate and connect with the cutting platform cover (3).

6. A rotationally molded corn harvester cover according to claim 5, characterized in that, The cutter guard (3) is hollow inside and is provided with guard reinforcing ribs (305). A guard connector (302) is provided at one end of the cutter guard (3) on the outside. The guard connector (302) is adapted to the front tip connector (201). The guard connector (302) and the front tip connector (201) are rotatably connected and fixed by bolts. A guard hinge mounting hole (303) is provided at the other end of the cutter guard (3).

7. A rotationally molded corn harvester cover according to claim 6, characterized in that, Oil injection holes (301) are provided on both sides of the hinge mounting hole (303) of the protective cover. A reinforcing bushing hole (304) is provided inside the cutter cover (3) at the end of the protective cover connector (302). A reinforcing bushing is provided inside the reinforcing bushing hole (304), and a reinforcing bolt is provided inside the reinforcing bushing.

8. A rotationally molded corn harvester cover according to claim 7, characterized in that, Angle adjustment top blocks (306) are provided at both ends of the reinforced bushing hole (304), and the position of the angle adjustment top blocks (306) corresponds to the position of the angle adjustment hole (202).

9. A rotationally molded corn harvester cover according to claim 8, characterized in that, An angle adjusting bolt (2021) is provided inside the angle adjusting hole (202).

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