Straw smashing device with front header of corn kernel harvester

Abstract

The utility model discloses a straw smashing device with a preposed header of a corn kernel harvester, which comprises a box body and a power component, a first shaft, a second shaft, a third shaft and a fourth shaft are sequentially arranged side by side along the length direction of the box body, and each shaft is correspondingly provided with a cylindrical gear; the power component drives the fourth cylindrical gear to rotate in a transmission mode, and the fourth cylindrical gear rotates to drive power to enable the first cylindrical gear to rotate sequentially through the third cylindrical gear and the second cylindrical gear. The bottom cutter bearing seat is connected with the box body; the bottom cutter shaft is rotationally supported by the bottom cutter bearing seat; the first bevel gear is coaxially fixed on the first shaft; the second bevel gear is coaxially fixed at the input end of the bottom cutter shaft; the first cylindrical gear rotates to drive the first bevel gear to rotate to drive the second bevel gear to rotate, and the second bevel gear rotates to drive the dead cutter shaft to rotate; a smashing cutter is fixed to the output end of the bottom cutter shaft. The problem that the whole harvester works unstably due to the fact that the transmission shaft of the front straw smashing device winds grass is solved.

Description

Technical Field

[0001] The utility model relates to the field of corn grain harvesters, in particular to a straw crushing device arranged in front of a cutting platform of a corn grain harvester. Background Art

[0002] The purpose of picking ears and crushing straw is to solve the problem of air pollution caused by burning corn stalks and to develop animal husbandry. That is, the corn stalks are crushed at the same time as the corn ears are harvested, and then collected or returned to the field. At present, on the cutting table of the corn harvester in my country, the free end of the stalk-pulling roller first contacts the corn stalks, and the rotating end of the stalk-pulling roller is rotated and installed on the cutting table. The existing cutting table generally places the straw crushing device at the rotating end of the stalk-pulling roller for post-positioning. In actual work, the post-positioned straw crushing device has the problem that the stalks are broken or pulled down by the moving stalk-pulling roller, and the straw cannot be effectively and evenly crushed. Utility Model Content

[0003] The utility model aims to provide a straw crushing device arranged in front of a cutting platform of a corn grain harvester to solve the technical problem of a rear-mounted straw crushing device.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A straw crushing device arranged in front of a cutting table of a corn grain harvester comprises a box body, a power component, and a first shaft, a second shaft, a third shaft, and a fourth shaft arranged in sequence along the length direction of the box body;

[0006] The first shaft, the third shaft and the fourth shaft rotatably supported by the housing are coaxially fixed with a first cylindrical gear, a third cylindrical gear and a fourth cylindrical gear, respectively; the second shaft fixedly supported by the housing is rotatably connected with a second cylindrical gear meshing with the first cylindrical gear and the third cylindrical gear, respectively;

[0007] The power component is transmission-connected to drive the fourth cylindrical gear to rotate, and the rotation of the fourth cylindrical gear drives the third cylindrical gear, the second cylindrical gear, and the first cylindrical gear to rotate;

[0008] It also includes: a bed knife bearing seat connected to the box body, a bed knife shaft rotatably supported by the bed knife bearing seat, a first bevel gear coaxially fixed on the first shaft, and a second bevel gear coaxially fixed on the input end of the bed knife shaft;

[0009] The bottom cutter shaft is perpendicular to the first shaft, the first cylindrical gear rotates to drive the first bevel gear to rotate, the first bevel gear rotates to drive the second bevel gear to rotate, and the second bevel gear rotates to drive the bottom cutter shaft to rotate;

[0010] A crushing knife is fixed on the output end of the bottom knife shaft.

[0011] Further, the whole crushing knife is strip-shaped and includes a connecting plate and two bottom blades;

[0012] One ends of the two bottom blades are respectively fixed to two ends of the connecting plate, and the middle position of the connecting plate is fixed to the output end of the bottom knife shaft.

[0013] Further, it further includes a fifth shaft fixedly supported by the box body and a sixth shaft rotatably supported by the box body. The first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft and the sixth shaft are juxtaposed in sequence along the length direction of the box body;

[0014] A fifth cylindrical gear is coaxially fixed on the fourth shaft, a sixth cylindrical gear is rotatably sleeved on the fifth shaft, and a seventh cylindrical gear is coaxially fixed on the sixth shaft. The sixth cylindrical gear meshes with the fifth cylindrical gear and the seventh cylindrical gear respectively;

[0015] The seventh cylindrical gear drives the fifth cylindrical gear to rotate through the sixth cylindrical gear.

[0016] Further, the power component is a rotatable main shaft of a gearbox, and the main shaft of the gearbox rotates synchronously with the sixth shaft.

[0017] Further, a connecting plate is fixed on the bottom knife bearing seat, and the connecting plate can be attached to an integrated pulling roller bracket, and the pulling roller bracket is used for installing a pulling roller.

[0018] In the above technical solution, the present utility model has the following beneficial effects:

[0019] A straw crushing device with a front-mounted cutting table of a corn kernel harvester provided by the present utility model. The crushing knife of the straw crushing device can be placed at the middle position on the side of the pulling roller, and the crushing knife can be located below the pulling roller, so that it can cooperate with the pulling roller more effectively to uniformly crush the straw, which is convenient for further processing of the straw. The straw is evenly cut, creating favorable conditions for further straw processing; the cylindrical gear transmission structure is used to meet the requirements of various ridge distances of domestic cultivated land; the device adopts a full-gear mechanical transmission, which is stable and reliable. The box body is adopted to avoid adverse effects such as grass entanglement during machine operation. The front-mounted straw crushing device has a reasonable design structure and stronger functionality. During the harvesting process, the straw is evenly broken, laying a foundation for subsequent agricultural production, and avoiding repeated entry of agricultural machinery into cultivated land for operation, which damages the land. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the internal structure of the straw crushing device disclosed by the present utility model;

[0022] Figure 2 Schematic diagram of the internal structure of the bottom knife bearing seat disclosed by the present utility model;

[0023] Figure 3 Schematic diagram of the structure of the crushing knife disclosed by the present utility model;

[0024] Figure 4 Schematic diagram of the usage structure of the straw crushing device disclosed by the present utility model.

[0025] Reference numerals:

[0026] The first cylindrical gear 1, the second cylindrical gear 2, the third cylindrical gear 3, the fourth cylindrical gear 4, the fifth cylindrical gear 5, the sixth cylindrical gear 6, the seventh cylindrical gear 7, the first bevel gear 8, the bottom knife bearing seat 9, the box body 10, the bottom knife shaft 11, the second bevel gear 12, the crushing knife 13, the connecting plate 13-1, the bottom knife blade 13-2, the connecting plate 14, the pulling roller bracket 16. Detailed implementation manners

[0027] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] It should be noted that the orientation or positional relationship indicated by the terms "above", "one end", "upper", etc. used in this article is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description. Similar expressions are only for the purpose of illustration and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; in addition, the terms "part one", "part two", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] As Figures 1-4 shown, a straw crushing device with a front-mounted cutter bar for a corn kernel harvester includes a box body 10, a power component, and a first shaft, a second shaft, a third shaft, and a fourth shaft arranged side by side in sequence along the length direction of the box body 10.

[0030] The first shaft, the third shaft, and the fourth shaft rotatably supported by the box body 10 are respectively coaxially fixed with a first cylindrical gear 1, a third cylindrical gear 3, and a fourth cylindrical gear 4. The second shaft fixedly supported by the box body 10 is rotatably connected with a second cylindrical gear 2 that meshes with the first cylindrical gear 1 and the third cylindrical gear 3 respectively.

[0031] The power component is connected to drive the fourth cylindrical gear 4 to rotate. The rotation of the fourth cylindrical gear 4 drives the third cylindrical gear 3 and the third shaft to rotate. The rotation of the third cylindrical gear 3 drives the second cylindrical gear 2 to rotate. The rotation of the second cylindrical gear 2 drives the first cylindrical gear 1 and the first shaft to rotate.

[0032] The machine also includes: a bed knife bearing seat 9 connected to the housing 10, a bed knife shaft 11 rotatably supported by the bed knife bearing seat 9, a first bevel gear 8 coaxially fixed on the first shaft, and a second bevel gear 12 coaxially fixed at the input end of the bed knife shaft 11; the bed knife bearing seat 9 is installed on the housing 10. The first bevel gear 8 and the second bevel gear 12 are meshed.

[0033] The bottom cutter shaft 11 is perpendicular to the first shaft. The rotation of the first cylindrical gear 1 drives the first bevel gear 8 on the first shaft to rotate. The rotation of the first bevel gear 8 drives the second bevel gear 12 to rotate. The rotation of the second bevel gear 12 drives the bottom cutter shaft 11 to rotate. A crushing knife 13 is fixed to the output end of the bottom cutter shaft 11, so that the crushing knife 13 can rotate. The first bevel gear 8 and the second bevel gear 12 play a steering role. The first shaft, the second shaft, the third shaft, and the fourth shaft are integrated in the housing, which play a role in adjusting the speed and driving the bottom cutter shaft 11 to rotate. When in use, the housing is fixed to one side of the outer surface of the stem pulling roller bracket, and the stem pulling roller bracket is used to install the stem pulling roller. The crushing knife 13 can be located in the middle of the length of the stem pulling roller bracket or close to the free end of the stem pulling roller.

[0034] The structure of the crushing knife 13 is prior art, and can be found in the utility model patent of "Corn ear picking and straw crushing device with reel type" with application number 200920221424.5, or in the following embodiments.

[0035] The crushing blade 13 is in the shape of a strip as a whole, and includes a connecting plate 13 - 1 and two bottom blades 13 - 2 ;

[0036] One end of the two bottom blades 13-2 is fixed to the two ends of the connecting disk 13-1, and the middle position of the connecting disk 13-1 is fixed to the output end of the bottom blade shaft 11. One end of the two bottom blades 13-2 is respectively installed to the two ends of the connecting disk 13-1 through fasteners, which are bolts and nuts.

[0037] Preferably, it further comprises a fifth axis fixedly supported by the box 10 and a sixth axis rotatably supported by the box 10, and the first axis, the second axis, the third axis, the fourth axis, the fifth axis and the sixth axis are sequentially juxtaposed along the length direction of the box 10. The box 10 serves to surround and accommodate the first axis, the second axis, the third axis, the fourth axis, the fifth axis and the sixth axis.

[0038] A fifth cylindrical gear 5 is coaxially fixed on the fourth shaft, a sixth cylindrical gear 6 is rotatably sleeved on the fifth shaft, and a seventh cylindrical gear 7 is coaxially fixed on the sixth shaft. The sixth cylindrical gear 6 meshes with the fifth cylindrical gear 5 and the seventh cylindrical gear 7 respectively. The rotation of the sixth shaft drives the rotation of the seventh cylindrical gear 7, the seventh cylindrical gear 7 drives the rotation of the fifth cylindrical gear 5 through the sixth cylindrical gear, and the rotation of the fifth cylindrical gear 5 drives the rotation of the fourth cylindrical gear 4.

[0039] More specifically, the power component is a rotatable main shaft of the gearbox. The main shaft of the gearbox is driven by an electric motor or a motor, and the main shaft of the gearbox rotates synchronously with the sixth shaft and is coaxially connected to the sixth shaft. Thus, the rotation of the seventh cylindrical gear 7 is achieved. After the fifth cylindrical gear 5 rotates, the fourth shaft rotates relative to the box body, and the rotation of the fourth shaft drives the rotation of the fourth cylindrical gear 4. A gearbox for providing the main shaft of the gearbox is installed at the rotating end of the pulling roller. This can highly integrate the pulling roller and the straw crushing device and reduce the volume. In addition, some gearboxes are also transmission devices for driving the rotation of the pulling roller, further highly integrating the pulling roller and the straw crushing device.

[0040] Preferably, a connecting plate 14 is fixed on the bottom knife bearing seat 9. The connecting plate 14 can be attached to the integrated pulling roller bracket, and the pulling roller bracket is used to install the pulling roller. The connecting plate 14 is in the shape of a sheet and can surround half of the side surface of the bottom knife bearing seat 9. The edge of the connecting plate 14 can be attached to the pulling roller bracket, and the box body and the connecting plate 14 play the role of fixing to the pulling roller bracket 16 at two different positions.

[0041] This product uses multiple cylindrical gears (the first cylindrical gear 1 to the seventh cylindrical gear) plus a set of bevel gears for continuous transmission to achieve speed change and change of the transmission direction. The cylindrical gears achieve the functions of the first-stage speed increase, the second-stage speed increase, and extension of the length of the entire device. The last set of bevel gears achieves the change of the transmission direction and the third-stage speed increase. The overall device is fixed by the box body connecting plate and the ear picking frame, that is, the pulling roller bracket 16. The connection form is simple, reliable, and easy to disassemble and assemble. Using cylindrical gears can save more space to achieve the adjustment and installation of series wide ridge spacing and narrow ridge spacing.

[0042] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. A straw crushing device placed in front of a corn grain harvester header, characterized in that: It comprises a box body (10), a power component, and a first shaft, a second shaft, a third shaft, and a fourth shaft arranged in sequence along the length direction of the box body (10); A first cylindrical gear (1), a third cylindrical gear (3) and a fourth cylindrical gear (4) are coaxially fixed to the first shaft, the third shaft and the fourth shaft rotatably supported by the housing (10), respectively; and a second cylindrical gear (2) is rotatably connected to the second shaft fixedly supported by the housing (10) and meshed with the first cylindrical gear (1) and the third cylindrical gear (3), respectively; The power component is in transmission connection with and drives the fourth cylindrical gear (4) to rotate, and the rotation of the fourth cylindrical gear (4) drives the third cylindrical gear (3), the second cylindrical gear (2), and the first cylindrical gear (1) to rotate; It also includes a bed knife bearing seat (9) connected to the box body (10), a bed knife shaft (11) rotatably supported by the bed knife bearing seat (9), a first bevel gear (8) coaxially fixed on the first shaft, and a second bevel gear (12) coaxially fixed to the input end of the bed knife shaft (11); The bottom cutter shaft (11) is perpendicular to the first shaft; the first cylindrical gear (1) rotates to drive the first bevel gear (8) to rotate; the first bevel gear (8) rotates to drive the second bevel gear (12) to rotate; the second bevel gear (12) rotates to drive the bottom cutter shaft (11) to rotate; A crushing knife (13) is fixed to the output end of the bottom knife shaft (11).

2. The straw crushing device in front of the cutting table of a corn grain harvester according to claim 1 is characterized in that: The crushing blade (13) is in the shape of a strip as a whole, and comprises a connecting plate (13-1) and two bottom blades (13-2); One end of the two bottom blades (13-2) is respectively fixed to the two ends of the connection disk (13-1), and the middle position of the connection disk (13-1) is fixed to the output end of the bottom blade shaft (11).

3. The straw crushing device in front of the cutting table of a corn grain harvester according to claim 1 is characterized in that: It also includes a fifth shaft fixedly supported by the box (10) and a sixth shaft rotatably supported by the box (10), wherein the first shaft, the second shaft, the third shaft, the fourth shaft, the fifth shaft and the sixth shaft are sequentially juxtaposed along the length direction of the box (10); A fifth cylindrical gear (5) is coaxially fixed on the fourth shaft, a sixth cylindrical gear (6) is rotatably sleeved on the fifth shaft, and a seventh cylindrical gear (7) is coaxially fixed on the sixth shaft, and the sixth cylindrical gear (6) is meshed with the fifth cylindrical gear (5) and the seventh cylindrical gear (7) respectively; The seventh cylindrical gear (7) rotates, driving the fifth cylindrical gear (5) to rotate via the sixth cylindrical gear (6).

4. The straw crushing device in front of the cutting table of a corn grain harvester according to claim 3, characterized in that: The power component is a rotatable gearbox main shaft, and the gearbox main shaft rotates synchronously with the sixth shaft.

5. The straw crushing device in front of the cutting table of a corn grain harvester according to claim 1, characterized in that: A connecting plate (14) is fixed on the bottom knife bearing seat (9), and the connecting plate (14) can be attached to an integrated stem pulling roller bracket (16), and the stem pulling roller bracket (16) is used to install the stem pulling roller.

Images