Adjustable blade protection device of agricultural harvesting machine

Abstract

The utility model discloses an adjustable protective blade device for agricultural harvesting machinery, which comprises a protective column rotationally connected to the front side of a header box, a plurality of protective blades are sleeved on the surface of the protective column, and a plurality of arc-shaped clamping grooves matched with the protective column are arranged on the rear sides of the protective blades. A rotating column rotationally connected with the header box is arranged on the rear side of the protective column, an adjusting assembly is arranged on the surface of the rotating column and comprises a plurality of extrusion blocks fixedly connected, and limiting grooves are formed in the two ends of the rear side of the top of the protective blade. The header box is protected through matched use of the protection column and the protection blade, so that the header box is prevented from being collided by hard objects protruding out of the ground, meanwhile, the orientation angle of the protection blade can be adjusted under matched use of the rotating column and the adjusting assembly, and therefore the header box can be used in different use scenes, and the cutting efficiency is improved. Effective and practical protection is provided for the header box, and the purposes of adjustable protection height and high protection accuracy can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the agricultural harvester technical field, especially, relate to an adjustable blade guard device of agricultural harvesting machinery. BACKGROUND

[0002] The harvester is a kind of integrated harvesting crop machinery, can complete harvesting, threshing, separating stem, removing waste and other processes, crop whole plant is cut after being cut by header and is transported to threshing device, under the high-speed rotation of threshing cylinder, grain is separated from ear head and is separated by screening and cleaning device, and stem and other sundries are discharged from the tail of machine.

[0003] In agricultural harvesting machinery, the header box is the key component of the harvester, in the operation process of the harvester, since the header box is close to the ground, it is easy to be collided by hard objects on the ground, thereby causing damage, even causing damage to related components in the header box, affecting the normal operation and service life of the harvesting machinery, and the installation angle of the blade guard of the header box is relatively fixed, it is difficult to flexibly adjust according to different farmland topography, crop growth conditions and other actual use scenarios, resulting in less than ideal protection effect, and the header box cannot be effectively protected accurately, therefore, an adjustable blade guard device of agricultural harvesting machinery is needed, which adopts an angle-adjustable blade guard structure, can flexibly adjust the orientation angle of the blade guard according to different use scenarios, and improves the protection effect of the header box. SUMMARY

[0004] The utility model aims at providing an adjustable blade guard device of agricultural harvesting machinery, which adopts an angle-adjustable blade guard structure, can flexibly adjust the orientation angle of the blade guard according to different use scenarios, and improves the protection effect of the header box, to solve the above technical problems.

[0005] The technical scheme for solving the above technical problems is as follows: an adjustable blade guard device of agricultural harvesting machinery, comprising a protective column rotatably connected to the front side of the header box, a plurality of blade guards are sleeved on the surface of the protective column, a plurality of arc-shaped clamping grooves matched with the protective column are formed in the rear side of the blade guard, a rotating column rotatably connected with the header box is arranged on the rear side of the protective column, an adjusting assembly is arranged on the surface of the rotating column, the adjusting assembly comprises a plurality of extrusion blocks fixedly connected, a limiting groove is formed in the rear side of the top of the blade guard, the surface of the extrusion block is tightly combined with the inner wall of the limiting groove, and a swing arm is fixedly connected to the both ends of the rotating column and protrudes outward from the header box.

[0006] Preferably, a plurality of positioning clamping plates are welded on the front side of the protective column, a positioning clamping groove is formed in the front side of the inner cavity of the arc-shaped clamping groove, and the positioning clamping plate is clamped in the inner cavity of the positioning clamping groove.

[0007] Preferably, the two sides of the blade guard top are threadedly connected with first bolts, the bottom ends of the first bolts penetrate to the bottom of the blade guard and are threadedly connected with the positioning clamping plate.

[0008] Preferably, the side of the swing arm away from the rotating column is threadedly connected with two second bolts, the two sides of the cutter box are provided with a plurality of fan-shaped thread grooves, and one end of the second bolt penetrates the swing arm and is threadedly connected with the thread groove.

[0009] Preferably, the surface of the protection column is rotationally connected with a plurality of supporting shaft sleeves, the two sides of the top of the supporting shaft sleeve are threadedly connected with third bolts, and the bottom ends of the third bolts penetrate to the bottom of the supporting shaft sleeve and are threadedly connected with the cutter box.

[0010] Preferably, the bottom of the blade guard is welded with arc-shaped guard plates on the two sides.

[0011] The utility model discloses the beneficial effect is:

[0012] 1. The utility model discloses the cooperation of protection column and blade guard is used to the cutter box and plays the protection effect, thereby preventing the cutter box from being collided by the hard object of ground protruding, and under the cooperation of rotating column and adjusting component, the orientation angle of blade guard can be adjusted, thereby providing effective and practical protection for the cutter box according to different use scenes, and the height of protection can be adjusted, and the purpose that the protection accuracy is high is achieved.

[0013] 2. The utility model discloses the cooperation of positioning clamping plate, positioning clamping groove and first bolt plays the connecting and fixing effect between blade guard and protection column, and blade guard can be stably installed on the surface of protection column.

[0014] 3. The utility model discloses the cooperation of second bolt and thread groove plays the limiting and fixing effect to swing arm, and rotating column and extruding block are at the angle that adjusts, thereby ensuring the stability of the orientation angle of blade guard. DRAWINGS

[0015] Among them:

[0016] Figure 1 It is the three-dimensional schematic view of one embodiment of the utility model;

[0017] Figure 2 It is the three-dimensional explosion view of cutter box, protection column and blade guard of one embodiment of the utility model;

[0018] Figure 3 It is one embodiment of the utility model Figure 2 The local enlarged view of point A in the embodiment;

[0019] Figure 4The utility model discloses a three-dimensional explosion map of a protective column, a blade guard and an adjusting assembly for an embodiment.

[0020] In the drawings, the component list represented by each sign is as follows:

[0021] 1, header box, 2, protective column, 3, blade guard, 4, arc-shaped clamping groove, 5, positioning clamping plate, 6, positioning clamping groove, 7, first bolt, 8, rotating column, 9, adjusting assembly, 91, extrusion block, 92, limiting groove, 93, swing arm, 94, second bolt, 95, threaded groove, 10, supporting shaft sleeve, 11, third bolt, 12, arc-shaped guard plate. DETAILED DESCRIPTION

[0022] In the following, an embodiment of the adjustable blade guard device of the agricultural harvesting machine of the utility model will be described with reference to the drawings.

[0023] Figures 1-4 The utility model discloses an adjustable blade guard device of agricultural harvesting machine for an embodiment, including the rotation connection of the protective column 2 of the header box 1 front side: the surface of protective column 2 is equipped with a plurality of blade guards 3, the surface of protective column 2 is rotationally connected with a plurality of supporting shaft sleeves 10, the both sides of the top of supporting shaft sleeve 10 are all screw -threaded and are connected with third bolt 11, and the bottom of third bolt 11 penetrates to the bottom of supporting shaft sleeve 10 and is screw -threaded and connected with header box 1, and the both sides of the bottom of blade guard 3 are all welded with arc-shaped guard plate 12, and the rear side of blade guard 3 is provided with a plurality of arc-shaped clamping grooves 4 matched with protective column 2, and the front side of protective column 2 is welded with a plurality of positioning clamping plates 5, and the front side of the inner chamber of arc-shaped clamping groove 4 is provided with positioning clamping groove 6, and positioning clamping plate 5 is clamped in the inner chamber of positioning clamping groove 6, and the both sides of the top of blade guard 3 are all screw -threaded and are connected with first bolt 7, and the bottom of first bolt 7 penetrates to the bottom of blade guard 3 and is screw -threaded and connected with positioning clamping plate 5, and the cooperation of positioning clamping plate 5, positioning clamping groove 6 and first bolt 7 plays the role of connecting and fixing between blade guard 3 and protective column 2, so that blade guard 3 can be stably installed on the surface of protective column 2, and the rear side of protective column 2 is provided with rotating column 8 rotationally connected with header box 1, and the surface of rotating column 8 is provided with adjusting assembly 9, and adjusting assembly 9 includes a plurality of extrusion blocks 91 fixedly connected, and the both ends of the rear side of the top of blade guard 3 are all provided with limiting groove 92, and the surface of extrusion block 91 is closely combined with the inner wall of limiting groove 92, and the both ends of rotating column 8 all penetrate to the outside of header box 1 and are fixedly connected with swing arm 93, and the side, away from rotating column 8 of swing arm 93, is screw -threaded and connected with two second bolts 94, and the both sides of header box 1 are provided with a plurality of fan-shaped threaded grooves 95, and one end of second bolt 94 penetrates swing arm 93 and is screw -threaded and connected with threaded groove 95, and the cooperation of second bolt 94 and threaded groove 95 plays the role of limiting and fixing to swing arm 93, so that rotating column 8 and extrusion block 91 are at the angle to be adjusted, thereby ensuring the stability of the angle of blade guard 3 to be adjusted.

[0024] Working principle: When using this utility model, the user installs the guard blade 3 on the front side of the protective column 2, so that the positioning plate 5 is engaged in the inner cavity of the positioning slot 6. Then, the first bolt 7 is rotated to the top of the guard blade 3, so that the positioning plate 5 and the first bolt 7 are threadedly connected, thereby allowing the guard blade 3 to be stably installed on the surface of the protective column 2. Then, the user adjusts the orientation angle of the guard blade 3 according to the usage scenario. During adjustment, the user rotates the swing arm 93, which drives the rotating column 8 to rotate. During the rotation of the rotating column 8, the extrusion block 91 rotates, thereby causing the surface of the extrusion block 91 to extrude pressure against the inner wall of the limiting groove 92. This causes the protective column 2 to rotate with its connection position with the cutting table box 1 as the rotation center, thereby adjusting the orientation angle of the guard blade 3. After reaching the appropriate angle, the user rotates the second bolt 94, so that the thread of the second bolt 94 is turned into the inner cavity of the threaded groove 95, thereby limiting and fixing the position of the swing arm 93 and the rotating column 8.

[0025] In summary, this adjustable blade guard device for agricultural harvesting machinery, through the combined use of the protective column 2 and the blade guard 3, protects the header box 1 from collisions with hard objects protruding from the ground. Simultaneously, with the combined use of the rotating column 8 and the adjusting component 9, the orientation angle of the blade guard 3 can be adjusted, thus providing effective and reliable protection for the header box 1 in different usage scenarios, achieving both adjustable protection height and high protection accuracy.

Claims

1. An adjustable guard device for an agricultural harvesting machine, the device comprising: The application relates to a protective column (2) rotatably connected to the front side of a header tank (1), wherein the surface of the protective column (2) is sleeved with a plurality of blade guards (3), the rear side of the blade guard (3) is provided with a plurality of arc-shaped clamping grooves (4) matched with the protective column (2), the rear side of the protective column (2) is provided with a rotating column (8) rotatably connected with the header tank (1), the surface of the rotating column (8) is provided with an adjusting assembly (9), the adjusting assembly (9) comprises a plurality of extrusion blocks (91) fixedly connected, the rear side of the top of the blade guard (3) is provided with a limiting recess (92) at both ends, the surface of the extrusion block (91) is tightly combined with the inner wall of the limiting recess (92), and both ends of the rotating column (8) penetrate through the outside of the header tank (1) and are fixedly connected with swing arms (93).

2. An adjustable guard device for an agricultural harvesting machine as claimed in claim 1 wherein, The front side of the protective column (2) is welded with a plurality of positioning clamping plates (5), the front side of the inner cavity of the arc-shaped clamping groove (4) is provided with a positioning clamping groove (6), and the positioning clamping plate (5) is clamped in the inner cavity of the positioning clamping groove (6).

3. An agricultural harvesting machine guard blade adjustment device as claimed in claim 2, wherein, The two sides of the top of the blade guard (3) are screw-connected with first bolts (7), the bottom end of the first bolt (7) penetrates through the bottom of the blade guard (3) and is screw-connected with the positioning clamping plate (5).

4. An agricultural harvesting machine guard blade adjustment device as claimed in claim 3, wherein, The side, away from the rotating column (8), of the swing arm (93) is screw-connected with two second bolts (94), the two sides of the header tank (1) are provided with a plurality of fan-shaped screw grooves (95), one end of the second bolt (94) penetrates through the swing arm (93) and is screw-connected with the screw groove (95).

5. An agricultural harvesting machine guard blade adjustment device as claimed in claim 4, wherein, The surface of the protective column (2) is rotatably connected with a plurality of supporting shaft sleeves (10), the two sides of the top of the supporting shaft sleeve (10) are screw-connected with third bolts (11), the bottom end of the third bolt (11) penetrates through the bottom of the supporting shaft sleeve (10) and is screw-connected with the header tank (1).

6. An agricultural harvesting machine guard blade adjustment device as claimed in claim 5, wherein, The two sides of the bottom of the blade guard (3) are welded with arc-shaped guard plates (12).

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