Cutter mechanism of stalk and spike harvesting type corn harvester

Abstract

The utility model discloses a cutter mechanism of a stalk and spike harvesting type corn harvester, which belongs to the technical field of agricultural machinery and particularly comprises a driving shaft and a roller fixedly arranged on the driving shaft, discs are fixedly arranged at two ends of the roller, a plurality of circumferentially distributed mounting frames are arranged between the outer edges of the discs at two ends, and the mounting frames are fixedly arranged on the driving shaft. The mounting frame is detachably connected with a blade through a connecting piece; by means of the rollers and the discs, the number of the blades is increased, the straw cutting range of the blades is changed, the straw smashing efficiency is improved, the blades can be disassembled and assembled on the installation frame through the connecting pieces, the traditional method that the blades are fixed in a welding mode is overcome, and therefore when the blades are damaged, the blades can be fixed through the connecting pieces. And the blade can be replaced, so that a user can use conveniently.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a cutter mechanism of a stalk-and-ear corn harvester. Background Art

[0002] Corn harvesters for both stalks and ears generally include a corn harvesting system, a stalk harvesting system and a field return machine, which together form a corn stalk processing system. The header is an important structure of the corn harvester for both stalks and ears, and is mainly used to cut corn stalks and separate stalks from corn cobs.

[0003] After the straw is cut by the cutting table, it is squeezed and transported into the grass cutting mechanism, so that the blades in the grass cutting mechanism further cut and crush the straw. However, since the blade rotation speed on the grass cutting mechanism is too high, the blade is easily damaged, and the traditional blade is directly welded and fixed. Therefore, it is not convenient to replace the blade after it is damaged, which causes great losses to users. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a cutting knife mechanism of a corn harvester for harvesting both stalks and ears, which has the characteristic of being able to easily replace the blade.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cutting mechanism of a stalk-and-ear corn harvester, comprising a driving shaft and a roller fixedly arranged on the driving shaft, a disc fixedly arranged at both ends of the roller, a plurality of circumferentially distributed mounting frames are arranged between the outer edges of the discs at both ends, and a blade is detachably connected to the mounting frame through a connecting piece.

[0006] Preferably, the mounting frame and the disc are both provided with a first bolt hole for a first bolt to pass through, so as to fix the mounting frame on the disc.

[0007] Preferably, the connecting member includes a first pressure plate, which is arranged in parallel on the outer side of the mounting frame. The first pressure plate, the blade and the mounting frame are all provided with a second bolt hole for a second bolt to pass through, so as to clamp and fix the blade on the mounting frame.

[0008] Preferably, a plurality of the second bolts are provided, and the plurality of second bolts are arranged at intervals along the length direction of the blade.

[0009] Preferably, the connecting member comprises a second pressing plate, the second pressing plate is arranged in parallel on the outer side of the mounting frame, and the middle of the second pressing plate, the blade and the mounting frame are all provided with a third bolt hole for the third bolt to pass through;

[0010] A limiting mechanism, wherein the mounting frame is provided with limiting mechanisms on both sides of the third bolt, and is used to limit the position of the blade and mount it on the mounting frame;

[0011] A limiting groove is adapted to be arranged with the limiting mechanism, and the limiting groove is arranged on the blade.

[0012] Preferably, the limiting mechanism comprises a fixing block fixedly arranged on the mounting frame, and the fixing block is provided with a slot for placing the second pressing plate;

[0013] A positioning member is arranged on the fixing block and away from a side of the mounting frame, and is used to limit and fix the second pressing plate inside the card slot.

[0014] Preferably, the positioning member includes an installation cavity arranged inside the fixed block and a limit plate movably arranged inside the installation cavity, an insertion rod is fixedly inserted into the limit plate, one end of the insertion rod extends out of the installation cavity and is movably inserted into a slot on the second pressure plate, the other end of the insertion rod extends out of the installation cavity and is fixedly connected to a handle, springs are arranged on both sides of the insertion rod in the installation cavity, and both ends of the spring are fixedly connected to the installation cavity and the limit plate respectively.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model increases the number of blades through rollers and discs, changes the cutting range of the blades on straw, and increases the efficiency of crushing the straw. The blades can be disassembled and assembled on the mounting frame through connecting pieces, which overcomes the traditional method of fixing the blades by welding. Therefore, the blades can be replaced when they are damaged, which is convenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of Embodiment 1 of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the mounting frame of Embodiment 1 of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of Embodiment 2 of the present utility model;

[0022] Figure 5 This is a schematic diagram of the main structure of Embodiment 2 of the present utility model;

[0023] Figure 6 This is a schematic diagram of the side cross-sectional structure of Embodiment 2 of the present utility model;

[0024] Figure 7 For this utility model Figure 6 A schematic diagram of the partially enlarged structure at center A;

[0025] Figure 8 This is a schematic diagram of the structure of the mounting frame of Embodiment 2 of the utility model;

[0026] In the figure: 1. driving shaft; 2. roller; 3. disc; 4. mounting frame; 5. blade; 6. first bolt; 7. first pressure plate; 8. second bolt; 9. second pressure plate; 10. third bolt; 11. fixing block; 12. slot; 13. mounting cavity; 14. limiting plate; 15. insertion rod; 16. slot; 17. handle; 18. spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] See also Figure 1-3 The present embodiment provides the following technical solutions: a cutting mechanism of a stalk-and-ear corn harvester, comprising a driving shaft 1 and a roller 2 fixedly arranged on the driving shaft 1, a disc 3 fixedly arranged on both the left and right ends of the roller 2, one end of the driving shaft 1 is drivingly connected to the driving device of the stalk-and-ear corn harvester, and the disc 3 is fixed to the stalk-and-ear corn harvester through a fixing hole. In some embodiments, the roller 2 and the discs 3 at both ends form an "I"-shaped straw, and a plurality of circumferentially distributed mounting frames 4 are arranged between the outer edges of the left and right end discs 3. The mounting frames 4 are detachably connected with blades 5 through connecting pieces. The number of blades 5 is increased through the roller 2 and the disc 3, the cutting range of the blades 5 on the straw is changed, and the crushing efficiency of the straw is increased.

[0030] The mounting frame 4 and the disc 3 are both provided with first bolt holes for the first bolts 6 to pass through, so as to fix the mounting frame 4 on the disc 3 . The mounting frame 4 can be assembled and disassembled on the disc 3 through the first bolts 6 .

[0031] The connecting part includes a first pressing plate 7, which is arranged in parallel on the outer side of the mounting frame 4. The first pressing plate 7, the blade 5 and the mounting frame 4 are all provided with a second bolt hole for the second bolt 8 to pass through, which is used to clamp the blade 5 on the mounting frame 4. The blade 5 can be disassembled and assembled on the mounting frame 4 through the first pressing plate 7 and the second bolt 8, overcoming the traditional method of fixing the blade 5 by welding, so that the blade 5 can be replaced when it is damaged, which is convenient for users to use.

[0032] By adopting the above-mentioned technical solution, the first pressure plate 7, the blade 5 and the second bolt holes on the mounting frame 4 are arranged correspondingly in sequence, and then the second bolt 8 is inserted into each second bolt hole in sequence to fix the first pressure plate 7 and the blade 5 on the mounting frame 4. When the blade 5 needs to be disassembled and assembled, it is only necessary to remove the second bolt 8 on each first pressure plate 7, and then the first pressure plate 7 and the blade 5 can be removed from the mounting frame 4, and the blade 5 can be replaced.

[0033] A plurality of second bolts 8 are provided, and the plurality of second bolts 8 are arranged at intervals along the length direction of the blade 5 . The plurality of second bolts 8 are provided to increase the fixing effect of the blade 5 .

[0034] Example 2

[0035] See also Figure 4-8 The connecting part includes a second pressing plate 9, which is arranged parallel to the outer side of the mounting frame 4. The second pressing plate 9, the blade 5 and the middle of the mounting frame 4 are all provided with a third bolt hole for the third bolt 10 to pass through. The blade 5 can be clamped between the mounting frame 4 and the second pressing plate 9 through the third bolt 10.

[0036] like Figure 5 As shown, a limiting mechanism is provided on the left and right sides of the third bolt 10 on the mounting frame 4, which is used to limit the installation of the blade 5 on the mounting frame 4, and a limiting groove is adapted to the limiting mechanism. The limiting groove is provided on the blade 5. The blade 5 can be limited by the limiting mechanism and the limiting groove, so that while the third bolt 10 fixes the blade 5, the stability of the blade 5 on the mounting frame 4 is further increased.

[0037] The limiting mechanism includes a fixing block 11 fixedly arranged on the mounting frame 4, and a slot 12 for placing the second pressure plate 9 is arranged on the fixing block 11. Through the slot 12, after the blade 5 passes through the fixing block 11 and is installed on the mounting frame 4, the second pressure plate 9 can be placed inside the slot 12, so that the blade 5 is located between the mounting frame 4 and the second pressure plate 9.

[0038] The positioning member is arranged on the fixing block 11 and is away from the side of the mounting frame 4 , and is used to limit and fix the second pressing plate 9 inside the card slot 12 . The second pressing plate 9 can be limited and fixed by the positioning member.

[0039] like Figure 8 As shown, the limiting groove on the blade 5 is sleeved on the fixed block 11 from above the fixed block 11, and pushes the blade 5 to move toward the placement rack along the length direction of the fixed block 11 until the blade 5 moves to the part of the fixed block 11 located below the slot 12, thereby completing the placement of the blade 5.

[0040] like Figure 7 As shown, the positioning member includes an installation cavity 13 arranged inside the fixed block 11 and a limit plate 14 movably arranged in the installation cavity 13, and an insertion rod 15 is fixedly penetrated on the limit plate 14, one end of the insertion rod 15 extends out of the installation cavity 13 and is movably inserted into the slot 16 on the second pressure plate 9, and the other end of the insertion rod 15 extends out of the installation cavity 13 and is fixedly connected with a handle 17, and springs 18 are arranged on both sides of the insertion rod 15 in the installation cavity 13, and the two ends of the spring 18 are fixedly connected to the installation cavity 13 and the limit plate 14 respectively. Through the insertion rod 15, when the second pressure plate 9 is placed in the card slot 12, the insertion rod 15 can be squeezed to make the insertion rod 15 move into the installation cavity 13, and the spring 18 can be squeezed when the insertion rod 15 moves. When the insertion rod 15 corresponds to the slot 16, the spring 18 is reset, so that the insertion rod 15 enters the slot 16, and the second pressure plate 9 is fixed in the card slot 12, thereby further completing the limit fixation of the blade 5.

[0041] The working principle of the utility model is as follows: each blade 5 is placed on the mounting frame 4 in turn, and the limiting groove on the blade 5 passes through the fixing block 11 and is clamped on the fixing block 11, and then the second pressing plate 9 is placed close to the blade 5, so that the second pressing plate 9 is placed inside the card slot 12 of the fixing block 11, and at the same time, the second pressing plate 9 is pressed into the card slot 12, and the second pressing plate 9 squeezes the insertion rod 15 on the fixing block 11, and the insertion rod 15 moves into the mounting cavity 13 under the action of squeezing, and squeezes the spring 18 while the insertion rod 15 moves, until the second pressing plate 9 is completely in contact with the bottom of the card slot 12, the slot 16 on the blade 5 is correspondingly arranged with the insertion rod 15 on the fixing block 11, and under the resetting action of the spring 18, the insertion rod 15 is inserted into the slot 16, the second pressing plate 9 is limited and fixed, and then the third bolt 10 passes through the second pressing plate 9, the blade 5 and the third bolt 10 on the mounting frame 4, and the blade 5 is further fixed on the mounting frame 4;

[0042] When the blade 5 needs to be disassembled and assembled, the third bolt 10 on each second pressure plate 9 is taken out in turn, and then the handle 17 on each fixing block 11 is pulled in turn to disengage the insertion rod 15 from the slot 16 on the second pressure plate 9. At this time, the second pressure plate 9 is in a free state, and the second pressure plate 9 is taken out from the inside of the card slot 12, and then the blade 5 is pulled to slide along the fixing block 11 until the limit groove on the blade 5 is disengaged from the fixing block 11, thereby removing the blade 5 from the mounting frame 4 and replacing the blade 5.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein with equivalents. 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 cutting mechanism of a corn harvester for harvesting both stalks and ears, characterized in that: The invention comprises a driving shaft (1) and a roller (2) fixedly mounted on the driving shaft (1), wherein discs (3) are fixedly mounted on both ends of the roller (2), and a plurality of circumferentially distributed mounting frames (4) are arranged between the outer edges of the discs (3) at both ends, and blades (5) are detachably connected to the mounting frames (4) via connecting pieces.

2. The cutting mechanism of the corn harvester for harvesting both stalks and ears according to claim 1 is characterized by: The mounting frame (4) and the disc (3) are both provided with a first bolt hole for a first bolt (6) to pass through, and are used to fix the mounting frame (4) on the disc (3).

3. The cutting mechanism of the corn harvester for harvesting both stalks and ears according to claim 1 is characterized by: The connecting member comprises a first pressing plate (7), the first pressing plate (7) being arranged in parallel on the outer side of the mounting frame (4), and the first pressing plate (7), the blade (5) and the mounting frame (4) are all provided with second bolt holes for passing second bolts (8) for clamping and fixing the blade (5) on the mounting frame (4).

4. The cutting mechanism of the corn harvester for harvesting both stalks and ears according to claim 3 is characterized by: A plurality of second bolts (8) are provided, and the plurality of second bolts (8) are arranged at intervals along the length direction of the blade (5).

5. The cutting mechanism of the corn harvester for harvesting both stalks and ears according to claim 1, characterized in that: The connecting member comprises a second pressing plate (9), the second pressing plate (9) being arranged in parallel on the outer side of the mounting frame (4), and a third bolt hole for a third bolt (10) to pass through is arranged in the middle of the second pressing plate (9), the blade (5) and the mounting frame (4); A limiting mechanism, wherein the mounting frame (4) is provided with limiting mechanisms on both sides of the third bolt (10), and is used to limit the position of the blade (5) and to mount it on the mounting frame (4); A limiting groove, the limiting groove is adapted to be arranged with the limiting mechanism, and the limiting groove is arranged on the blade (5).

6. The cutting mechanism of the corn harvester for harvesting both stalks and ears according to claim 5, characterized in that: The limiting mechanism comprises a fixing block (11) fixedly arranged on the mounting frame (4), and the fixing block (11) is provided with a slot (12) for accommodating the second pressing plate (9); A positioning member, the positioning member is arranged on the fixing block (11) and is away from a side of the mounting frame (4), and is used to position and fix the second pressing plate (9) inside the clamping slot (12).

7. The cutting mechanism of the corn harvester for harvesting both stalks and ears according to claim 6, characterized in that: The positioning member comprises an installation cavity (13) arranged inside the fixed block (11) and a limit plate (14) movably arranged inside the installation cavity (13); an insertion rod (15) is fixedly inserted into the limit plate (14); one end of the insertion rod (15) extends out of the installation cavity (13) and is movably inserted into a slot (16) on the second pressure plate (9); the other end of the insertion rod (15) extends out of the installation cavity (13) and is fixedly connected to a handle (17); springs (18) are arranged on both sides of the insertion rod (15) in the installation cavity (13); and the two ends of the spring (18) are fixedly connected to the installation cavity (13) and the limit plate (14), respectively.

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