Straw smashing device of wheat harvester

Abstract

The utility model provides a straw smashing device of a wheat harvester, which relates to the technical field of straw smashing and comprises a smashing box, a smashing cavity is arranged in the smashing box, two rotating rods are arranged in the smashing cavity, sleeves are sleeved on the surfaces of the rotating rods, and the sleeves are sleeved on the surfaces of the rotating rods. And first crushing blades and second crushing blades are fixedly connected to the surfaces of the two sleeves at equal intervals correspondingly. By opening the cover plate, the effect that the sleeves can be conveniently taken down from the surface of the rotating rod can be achieved, so that the effect of conveniently maintaining the crushing blades can be achieved, and meanwhile, due to the fact that the two ends of the two sleeves are sleeved with the first connecting plate and the second connecting plate, the crushing blades can be conveniently maintained. And the bottom of the first connecting plate and the bottom of the second connecting plate are fixedly connected with a first filter screen and a second filter screen correspondingly, the effect that the first filter screen and the second filter screen can be conveniently taken out along with the sleeve can be achieved, and therefore the effect that the first filter screen and the second filter screen can be conveniently taken out for maintenance or replacement can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of straw crushing, in particular to a straw crushing device for a wheat harvester. Background Art

[0002] The wheat harvester is powered by a gasoline engine, which drives the saw blades to rotate at high speed through the transmission shaft, thereby achieving the purpose of harvesting. It can also automatically crush the straw and automatically classify and collect the wheat. During the straw crushing process, the straw is transported to the crushing barrel at the rear end through the conveying device at the front end, and then the straw is crushed by the rotation of the cutter. Finally, the crushed straw is blown out through the discharge port by the fan.

[0003] Existing, such as Chinese patent publication number: CN220044245U The utility model discloses a wheat harvester straw crushing device that can be used for noise reduction, including a crushing device body, the top of the crushing device body is fixedly connected to a feed cover, the inner side of the crushing device body is slidably connected to a mounting frame, the inner side of the mounting frame is rotatably connected to a connecting rod, the outer wall of the connecting rod is fixedly connected to a crushing blade, one end of the crushing device body is fixedly connected to a fan box, and one side outer wall of the fan box is fixedly connected to the mounting box. The utility model is connected to the inner side of the crushing device body by the mounting frame slidingly, the inner side of the limiting groove is engaged by a limiting block, and the inner side of the connecting groove is engaged by the engaging rod, which makes it convenient for the staff to separate the transmission rod and the connecting rod, thereby making it convenient for the staff to remove the mounting frame from the inner side of the crushing device body, making it convenient for the staff to disassemble the harvester straw crushing device, thereby improving the work efficiency of the staff in repairing the harvester straw crushing device.

[0004] Although the limit block in the above patent is embedded in the inner side of the limit groove and is connected to the inner side of the connecting groove through the embedding rod, it is convenient for the staff to separate the transmission rod and the connecting rod, thereby facilitating the staff to remove the certificate mounting frame from the inner side of the crushing device body, and facilitating the staff to disassemble the harvester straw crushing device, thereby improving the work efficiency of the staff in repairing the harvester straw crushing device, but the above patent technology cannot conveniently disassemble the filter screen at the same time. When the screen is blocked, it is easy to reduce the crushing efficiency. Therefore, a wheat harvester straw crushing device is needed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the above technology that the filter screen cannot be disassembled conveniently at the same time, and the crushing efficiency is easily reduced when the screen is blocked, and a wheat harvester straw crushing device is proposed.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical scheme: A wheat harvester straw crushing device comprises a crushing box, a crushing chamber is formed inside the crushing box, two rotating rods are provided inside the crushing chamber, a sleeve is provided on the surface of the rotating rod, a first crushing blade and a second crushing blade are fixedly connected to the surfaces of the two sleeves at equal intervals, a first connecting plate and a second connecting plate are respectively formed on the surface of the sleeve near both ends and are rotatably connected to the bearings, a first filter screen and a second filter screen are fixedly connected to the bottom of the first connecting plate and the second connecting plate, a tooth cavity is formed inside the inner wall of one end of the crushing box, a first gear is rotatably connected to the tooth cavity near the center, a rotating column is provided inside the tooth cavity and above and below the first gear, one end of the rotating column passes through the inner wall of the tooth cavity and is fixedly connected to one end of the rotating rod, a second gear is sleeved and fixedly connected to the surface of the rotating column, the first gear is meshed with the second gear, a cover plate is provided at one end of the crushing box, a round block is embedded in the surface of the cover plate and is rotatably connected to the bearings, and the two round blocks are fixedly connected to the rotating rod.

[0007] Preferably, a feed port is provided on the surface of the crushing box, and a discharge ring plate is fixed and connected to the bottom of the crushing box.

[0008] Preferably, limiting grooves are provided at equal intervals on the surface of the rotating rod, and limiting blocks are embedded in and slidably connected to the inside of the limiting grooves, and the limiting blocks are fixedly connected to the inner wall of the sleeve.

[0009] Preferably, a chute is provided on the inner wall of the crushing box and below the first filter screen and the second filter screen, a slider is embedded in the chute and slidably connected, and the slider is fixedly connected to the bottom of the first filter screen and the second filter screen.

[0010] Preferably, the other end of the rotating column passes through the inner wall of the other side of the tooth cavity and is rotatably connected to its bearing, one end of the crushing box is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to one end of one of the rotating rods.

[0011] Preferably, the top and bottom of the cover plate are both fixedly connected to a first mounting block, and the top of the crushing box, near one end, is fixedly connected to a second mounting block.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. In the utility model, by opening the cover plate, the sleeve can be easily removed from the surface of the rotating rod, thereby facilitating the maintenance of the crushing blade. At the same time, since the first connecting plate and the second connecting plate are sleeved at both ends of the two sleeves, and the first connecting plate and the second connecting plate are fixedly connected to the bottom of the first connecting plate and the second connecting plate respectively, it is convenient to take out the first filter screen and the second filter screen along with the sleeve, thereby facilitating the removal, maintenance or replacement of the first filter screen and the second filter screen.

[0014] 2. In the utility model, the driving motor can drive the rotating column to rotate, the rotation of the rotating column can drive the second gear to rotate, the rotation of the second gear can drive the first gear to rotate, the rotation of the first gear can drive another second gear to rotate, the rotation of the two second gears can drive the rotating rod to rotate, the rotation of the rotating rod can drive the sleeve to rotate through the limit groove and the limit block, and the rotation of the sleeve can drive the first crushing blade and the second crushing blade to perform secondary crushing of the straw, which can improve the uniformity of the crushing and facilitate the subsequent processing of the straw. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This utility model provides a three-dimensional diagram of the overall structure of a straw crushing device for a wheat harvester;

[0016] Figure 2 This utility model provides a vertical cross-sectional view of the overall structure of a straw crushing device for a wheat harvester;

[0017] Figure 3 This is a cross-sectional view of the overall structure of a straw crushing device for a wheat harvester proposed in the utility model;

[0018] Figure 4 This is a partial structural perspective diagram of a straw crushing device for a wheat harvester proposed in the utility model;

[0019] Figure 5 The utility model proposes a wheat harvester straw crushing device Figure 4 Three-dimensional diagram of the structure of area A.

[0020] Legend: 1. Crushing box; 2. Discharge ring plate; 3. Crushing chamber; 4. Rotating rod; 5. Sleeve; 6. First crushing blade; 7. Second crushing blade; 8. Limiting groove; 9. Limiting block; 10. First connecting plate; 11. Second connecting plate; 12. First filter screen; 13. Second filter screen; 14. Slide; 15. Slider; 16. Tooth chamber; 17. First gear; 18. Rotating column; 19. Second gear; 20. Driving motor; 21. Cover plate; 22. Round block; 23. First mounting block; 24. Second mounting block. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1, as Figure 1-Figure 5 As shown, the utility model provides a wheat harvester straw crushing device, including a crushing box 1, a crushing chamber 3 is opened inside the crushing box 1, two rotating rods 4 are arranged inside the crushing chamber 3, a sleeve 5 is sleeved on the surface of the rotating rod 4, a first crushing blade 6 and a second crushing blade 7 are fixedly connected to the surface of the two sleeves 5 at equal intervals, a first connecting plate 10 and a second connecting plate 11 are sleeved on the surface of the sleeve 5 and are rotatably connected to the bearings near the two ends, a first filter screen 12 and a second filter screen 13 are fixedly connected to the bottom of the first connecting plate 10 and the second connecting plate 11, and the crushing box A tooth cavity 16 is opened inside the inner wall of one end of 1, and a first gear 17 is rotatably connected to the tooth cavity 16 near the center thereof. A rotating column 18 is provided inside the tooth cavity 16 and above and below the first gear 17. One end of the rotating column 18 passes through the inner wall of the tooth cavity 16 and is fixedly connected to one end of the rotating rod 4. A second gear 19 is sleeved on the surface of the rotating column 18 and fixedly connected. The first gear 17 is meshed with the second gear 19. A cover plate 21 is provided at one end of the crushing box 1, and a round block 22 is embedded in the surface of the cover plate 21 and rotatably connected to the bearing. Both round blocks 22 are fixedly connected to the rotating rod 4.

[0024] The effect achieved by the entire embodiment 1 is that a crushing chamber 3 is opened inside the crushing box 1, two rotating rods 4 are provided inside the crushing chamber 3, and the surface of the rotating rod 4 is sleeved with a sleeve 5. The surfaces of the two sleeves 5 are fixedly connected with the first crushing blade 6 and the second crushing blade 7 at equal intervals, which can make the rotating rod 4 rotate to drive the sleeve 5 to rotate, and the rotation of the sleeve 5 can drive the first crushing blade 6 and the second crushing blade 7 to rotate, so as to crush the straw. The first connecting plate 10 and the second connecting plate 11 are respectively sleeved and connected with the bearing rotation on the surface of the sleeve 5 near the two ends. The first connecting plate 10 and the second connecting plate 11 are fixedly connected with the first filter screen 12 and the second filter screen 13 at the bottom, which can make the sleeve 5 removed to drive the first filter screen 12 and the second filter screen 13 to separate from the inside of the crushing chamber 3. A tooth cavity 16 is provided inside the inner wall of one end of the box 1, and a first gear 17 is rotatably connected to the tooth cavity 16 and near the center thereof. A rotating column 18 is provided inside the tooth cavity 16 and above and below the first gear 17. One end of the rotating column 18 passes through the inner wall of the tooth cavity 16 and is fixedly connected to one end of the rotating rod 4. A second gear 19 is sleeved on the surface of the rotating column 18 and fixedly connected. The first gear 17 is meshed with the second gear 19. A cover plate 21 is provided at one end of the crushing box 1, and a round block 22 is embedded in the surface of the cover plate 21 and rotatably connected to the bearing. The two round blocks 22 are fixedly connected to the rotating rod 4, which can make the rotating column 18 rotate to drive the second gear 19 to rotate, and the rotation of the second gear 19 can drive the first gear 17 to rotate. The rotation of the first gear 17 can drive the other second gear 19 to rotate, and the rotation of the two second gears 19 can drive the rotating rod 4 to rotate.

[0025] Example 2, as Figure 1-Figure 5 As shown, a feed port is provided on the surface of the crushing box 1, and the bottom of the crushing box 1 is fixed and connected to a discharge ring plate 2; limit grooves 8 are provided at equal intervals on the surface of the rotating rod 4, and the limit blocks 9 are embedded and slidably connected inside the limit grooves 8, and the limit blocks 9 are fixedly connected to the inner wall of the sleeve 5; a slide groove 14 is provided on the inner wall of the crushing box 1 and located below the first filter screen 12 and the second filter screen 13, and a slider 15 is embedded and slidably connected inside the slide groove 14, and the slider 15 is fixedly connected to the bottom of the first filter screen 12 and the second filter screen 13; the other end of the rotating column 18 passes through the inner wall of the other side of the tooth cavity 16 and is rotatably connected to its bearing, one end of the crushing box 1 is fixedly connected to a drive motor 20, and the output end of the drive motor 20 is fixedly connected to one end of one of the rotating rods 4; the top and bottom of the cover plate 21 are fixedly connected to the first mounting block 23, and the top of the crushing box 1 and near one end is fixedly connected to the second mounting block 24.

[0026] The effect achieved by the entire embodiment 2 is that a feed port is provided on the surface of the crushing box 1, and a discharge ring plate 2 is fixed and connected to the bottom of the crushing box 1, which can play the role of feeding and discharging; limiting grooves 8 are provided at equal intervals on the surface of the rotating rod 4, and the limiting blocks 9 are embedded in and slidably connected to the inner wall of the limiting groove 8. The limiting blocks 9 are fixedly connected to the inner wall of the sleeve 5, which can play the role of causing the rotating rod 4 to drive the sleeve 5 to rotate through the limiting grooves 8 and the limiting blocks 9; a slide groove 14 is provided through the inner wall of the crushing box 1 and below the first filter screen 12 and the second filter screen 13, and a slider 15 is embedded in and slidably connected to the slider 15. The slider 15 is connected to the first filter screen 12 and the second filter screen 13. The two filter screens 13 are fixedly connected at the bottom, which can facilitate the sliding blocks 15 at the bottom of the first filter screen 12 and the second filter screen 13 to slide out of the slide groove 14; the other end of the rotating column 18 passes through the inner wall of the other side of the tooth cavity 16 and is rotatably connected to its bearing, one end of the crushing box 1 is fixedly connected to the drive motor 20, and the output end of the drive motor 20 is fixedly connected to one end of one of the rotating rods 4, which can make the drive motor 20 drive the rotating rod 4 to rotate; the first mounting block 23 is fixedly connected to the top and bottom of the cover plate 21, and the second mounting block 24 is fixedly connected to the top of the crushing box 1 and near one end, which can install and fix the cover plate 21.

[0027] Working principle: By removing the bolts from the first mounting block 23 and the second mounting block 24, the cover 21 can be opened, which can facilitate the removal of the sleeve 5 from the surface of the rotating rod 4, thereby facilitating the maintenance of the first crushing blade 6 and the second crushing blade 7. At the same time, since the two ends of the two sleeves 5 are sleeved with the first connecting plate 10 and the second connecting plate 11, and the bottoms of the first connecting plate 10 and the second connecting plate 11 are respectively fixedly connected with the first filter screen 12 and the second filter screen 13, it can facilitate the removal of the first filter screen 12 and the second filter screen 13 along with the sleeve 5, thereby facilitating the maintenance of the first filter screen 12 and the second filter screen 13. The filter screen 13 can be taken out for maintenance or replacement. When the maintenance is completed, it can be reinstalled. At this time, the driving motor 20 can drive the rotating column 18 to rotate. The rotation of the rotating column 18 can drive the second gear 19 to rotate. The rotation of the second gear 19 can drive the first gear 17 to rotate. The rotation of the first gear 17 can drive another second gear 19 to rotate. The rotation of the two second gears 19 can drive the rotating rod 4 to rotate. The rotation of the rotating rod 4 can drive the sleeve 5 to rotate through the limiting groove 8 and the limiting block 9. The rotation of the sleeve 5 can drive the first crushing blade 6 and the second crushing blade 7 to perform secondary crushing of the straw, which can improve the uniformity of the crushing, thereby facilitating the subsequent processing of the straw.

[0028] The wiring diagram of the drive motor 20 in the present invention is common knowledge in the art, and its working principle is a well-known technology. The model is selected according to actual use, so the control method and wiring arrangement of the drive motor 20 are not explained in detail.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A wheat harvester straw crushing device, comprising a crushing box (1), characterized in that: The crushing box (1) has a crushing chamber (3) formed inside, and two rotating rods (4) are provided inside the crushing chamber (3). A sleeve (5) is provided on the surface of the rotating rod (4), and a first crushing blade (6) and a second crushing blade (7) are fixedly connected to the surfaces of the two sleeves (5) at equal intervals. A first connecting plate (10) and a second connecting plate (11) are respectively provided on the surface of the sleeve (5) near both ends and are rotatably connected to the bearings. A first filter screen (12) and a second filter screen (13) are fixedly connected to the bottoms of the first connecting plate (10) and the second connecting plate (11). A tooth cavity (16) is provided inside the inner wall of one end of the crushing box (1). A first gear (17) is rotatably connected to a bearing inside the tooth cavity (16) and near the center thereof. A rotating column (18) is provided inside the tooth cavity (16) and above and below the first gear (17). One end of the rotating column (18) passes through the inner wall of the tooth cavity (16) and is fixedly connected to one end of the rotating rod (4). A second gear (19) is sleeved on the surface of the rotating column (18) and fixedly connected thereto. The first gear (17) is meshed with the second gear (19). A cover plate (21) is provided at one end of the crushing box (1). A round block (22) is embedded in the surface of the cover plate (21) and rotatably connected thereto. Both round blocks (22) are fixedly connected to the rotating rod (4).

2. A wheat harvester straw crushing device according to claim 1, characterized in that: A feed port is provided on the surface of the pulverizing box (1), and a discharge ring plate (2) is fixed and connected to the bottom of the pulverizing box (1).

3. The straw crushing device for a wheat harvester according to claim 1, characterized in that: Limiting grooves (8) are provided at equal intervals on the surface of the rotating rod (4), and limiting blocks (9) are embedded in and slidably connected to the inside of the limiting grooves (8), and the limiting blocks (9) are fixedly connected to the inner wall of the sleeve (5).

4. The straw crushing device for a wheat harvester according to claim 1, characterized in that: A chute (14) is provided on the inner wall of the crushing box (1) and below the first filter screen (12) and the second filter screen (13). A slider (15) is embedded in and slidably connected to the inside of the chute (14). The slider (15) is fixedly connected to the bottom of the first filter screen (12) and the second filter screen (13).

5. The wheat harvester straw crushing device according to claim 1, characterized in that: The other end of the rotating column (18) passes through the inner wall of the other side of the tooth cavity (16) and is rotatably connected to its bearing. One end of the crushing box (1) is fixedly connected to a driving motor (20), and the output end of the driving motor (20) is fixedly connected to one end of one of the rotating rods (4).

6. The wheat harvester straw crushing device according to claim 1, characterized in that: The top and bottom of the cover plate (21) are both fixedly connected to a first mounting block (23), and the top of the crushing box (1) near one end is fixedly connected to a second mounting block (24).

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