Narrow-row-spacing corn ear picking gearbox

Abstract

The utility model provides a narrow-row-spacing corn ear picking gearbox. The narrow-row-spacing corn ear picking gearbox comprises a box body, a transmission shaft, an output shaft, a mounting plate and a transmission assembly. According to the narrow-row-spacing corn ear picking gearbox, the box body is arranged, the two wing plates are fixedly installed on the top of the box body, and the wing plates and the box body are of an integrally-formed structure. The two wing plates incline upwards in the direction away from the box body. Grooves used for installing the transmission assembly are formed in the opposite sides of the two wing plates in a concave mode, and the installation plate is detachably installed on the wing plates through bolts. The output shaft and the driving shaft on the reel chain can be synchronously driven to rotate through the transmission shaft. And the driving shaft is mounted on the mounting plate, and the mounting plate is detachably mounted on the wing plate, so that the transmission assembly and the driving shaft are conveniently connected with the first bevel gear on the transmission shaft. And all parts in the box body are convenient to assemble, the structure is simple, and the operation is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, and in particular relates to a narrow-row-spacing corn ear picking gear box. Background Art

[0002] In order to increase corn yields, the row spacing of corn will be reduced during corn planting. The reduction in row spacing during corn planting requires reducing the width of the corn harvester's ear picking mechanism during corn harvesting. Currently, in order to reduce the width of the corn ear picking mechanism, the driving shaft of the plucking chain is usually designed to be in an inclined state to reduce the overall width of the ear picking mechanism. The plucking chain and the stalk pulling roller on the ear picking mechanism rotate under the drive of the same gearbox. Since the driving shaft of the plucking chain is in an inclined state, the internal size layout and installation method of the gearbox need to be changed. At the same time, the inclined setting of the plucking chain main shaft affects the installation of the gears inside the gearbox, causing inconvenience in assembling the gearbox. Utility Model Content

[0003] The embodiment of the utility model provides a narrow row spacing corn ear picking gear box, which aims to solve the problem that the narrow row spacing corn ear picking gear box in the prior art has a complex internal structure and is inconvenient to assemble.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is to provide a narrow-row-spacing corn ear picking gearbox, comprising:

[0005] A box body, wherein two wing plates are fixedly mounted on the top of the box body, and the two wing plates are arranged on the box body in a relatively inclined manner;

[0006] A transmission shaft is rotatably arranged inside the box, with first bevel gears installed at both ends of the transmission shaft, and the length direction of the transmission shaft is arranged along the arrangement direction of the two wing plates;

[0007] There are two output shafts, which are connected to the transmission shaft for driving the stem pulling roller to rotate;

[0008] A mounting plate is detachably mounted on the wing plate, and a driving shaft of the plowing chain is rotatably mounted on the mounting plate;

[0009] The transmission assembly is installed between the driving shaft and the first bevel gear, and is used to connect the driving shaft and the first bevel gear.

[0010] In one possible implementation, the transmission assembly includes:

[0011] a second bevel gear, rotatably mounted on the mounting plate and meshing with the first bevel gear;

[0012] a first spur gear, coaxially arranged with the second bevel gear and transmission-connected with the second bevel gear;

[0013] The second spur gear is coaxially arranged with the driving shaft and is in transmission connection with the driving shaft. The second spur gear is meshed with the first spur gear.

[0014] In a possible implementation, a pressing block for pressing the mounting plate onto the wing plate is further mounted on the box body, and a fastener for fixing the pressing block to the box body is further threadedly connected to the box body.

[0015] In a possible implementation, one side of the pressing block is obliquely provided with an inclined surface for fitting to the outer side surface of the mounting plate.

[0016] In one possible implementation, a mounting groove for mounting a pressure block is provided on the box body, a guide surface is provided on the side of the pressure block away from the inclined surface, the guide surface is inclined upward in a direction away from the inclined surface, and a chamfer is provided on the side wall of the mounting groove for sliding engagement with the guide surface.

[0017] In a possible implementation, two third bevel gears are installed in the middle of the transmission shaft, and a fourth bevel gear in transmission connection with the third bevel gears is installed on the output shaft.

[0018] In a possible implementation, a main shaft sleeve is rotatably provided on the box body, the main shaft sleeve is arranged in parallel with the transmission shaft, and the main shaft sleeve and the transmission shaft are in transmission connection with each other.

[0019] In a possible implementation, a cover plate is detachably mounted on the end surface of the box body, and the two output shafts are rotatably disposed on the cover plate.

[0020] Compared with the prior art, the solution shown in the embodiment of the present application is provided with a box body, and two wing plates are fixedly installed on the top of the box body, and the wing plates and the box body are an integrally formed structure. Both wing plates are tilted upward in the direction away from the box body. A groove for installing the transmission assembly is recessed on the opposite side of the two wing plates, and the mounting plate is detachably mounted on the wing plate by bolts. The present application can synchronously drive the output shaft and the driving shaft on the plowing chain to rotate through the transmission shaft. The driving shaft is mounted on the mounting plate, and the mounting plate is detachably mounted on the wing plate, which facilitates the connection between the transmission assembly and the driving shaft and the first bevel gear on the transmission shaft. It is convenient for assembly between the various components inside the box body, and the structure is simple and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a narrow-row-spacing corn ear picking gearbox provided by an embodiment of the present utility model;

[0022] Figure 2 A schematic diagram of the structure inside the box provided by an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the installation structure of the pressing block provided in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure between the transmission shaft and the output shaft provided in an embodiment of the present utility model.

[0025] Description of reference numerals:

[0026] 1. Housing; 2. Drive shaft; 21. First bevel gear; 22. Third bevel gear; 3. Output shaft; 31. Fourth bevel gear; 4. Mounting plate; 5. Active shaft; 6. Transmission assembly; 61. Second bevel gear; 62. First spur gear; 63. Second spur gear; 7. Pressure block; 71. Fastener; 8. Main shaft sleeve; 9. Cover plate. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Please also refer to Figures 1 to 4 , the narrow row spacing corn ear picking gearbox provided by the present invention is now described. The narrow row spacing corn ear picking gearbox includes a box body 1, a transmission shaft 2, an output shaft 3, a mounting plate 4 and a transmission assembly 6. Two wing plates are fixedly installed on the top of the box body 1, and the two wing plates are relatively inclined and arranged on the box body 1; the transmission shaft 2 is rotatably arranged inside the box body 1, and both ends of the transmission shaft 2 are installed with a first bevel gear 21, and the length direction of the transmission shaft 2 is arranged along the arrangement direction of the two wing plates; there are two output shafts 3, and the two output shafts 3 are connected to the transmission shaft 2 for driving the stalk pulling roller to rotate; the mounting plate 4 is detachably mounted on the wing plate, and the driving shaft 5 of the straw chain is rotatably arranged on the mounting plate 4; the transmission assembly 6 is installed between the driving shaft 5 and the first bevel gear 21 for connecting the driving shaft 5 with the first bevel gear 21.

[0029] Compared with the prior art, the narrow row spacing corn ear picking gearbox provided in this embodiment is provided with a box body 1, and two wing plates are fixedly installed on the top of the box body 1, and the wing plates and the box body 1 are an integrally formed structure. Both wing plates are inclined upward in the direction away from the box body 1. A groove for installing the transmission assembly 6 is recessed on the opposite side of the two wing plates, and the mounting plate 4 is detachably mounted on the wing plate by bolts. The present application can synchronously drive the output shaft 3 and the driving shaft 5 on the plowing chain to rotate through the transmission shaft 2. And the driving shaft 5 is mounted on the mounting plate 4, and the mounting plate 4 is detachably mounted on the wing plate, so that the transmission assembly 6 and the driving shaft 5 are conveniently connected to the first bevel gear 21 on the transmission shaft 2. It is convenient for assembly between the various components inside the box body 1, and the structure is simple and the operation is convenient.

[0030] Specifically, in this embodiment, the output shaft 3 and the transmission shaft 2 can be directly installed inside the housing 1, the driving shaft 5 of the reel chain is installed on the mounting plate 4, and finally the transmission assembly 6 and the mounting plate 4 are installed on the wing plate of the housing 1. This facilitates on-site debugging of the installation position of the driving shaft 5 and the matching relationship between the transmission assembly 6, the first bevel gear 21, and the driving shaft 5.

[0031] In some embodiments, the transmission assembly 6 may be configured as follows: Figure 2 The structure shown. Figure 2 The transmission assembly 6 includes a second bevel gear 61, a first spur gear 62, and a second spur gear 63. The second bevel gear 61 is rotatably mounted on the mounting plate 4 and meshes with the first bevel gear 21. The first spur gear 62 is coaxially mounted with the second bevel gear 61 and is in transmission connection with the second bevel gear 61. The second spur gear 63 is coaxially mounted with the driving shaft 5 and is in transmission connection with the driving shaft 5. The second spur gear 63 meshes with the first spur gear 62. The second bevel gear 61 meshes with the first bevel gear 21, thereby changing the transmission direction of the transmission shaft 2. A first mounting shaft is rotatably mounted on the mounting plate 4. The second bevel gear 61 and the first spur gear 62 are both fixedly mounted on the first mounting shaft and coaxially mounted with the first mounting shaft. The second spur gear 63 is fixedly mounted on the driving shaft 5 and coaxially mounted with the driving shaft 5. During use, the first bevel gear 21 at the end of the transmission shaft 2 drives the second bevel gear 61 to rotate, causing the first spur gear 62 to rotate accordingly. The first spur gear 62 and the second spur gear 63 are meshed with each other, and the first spur gear 62 drives the second spur gear 63 to rotate, thereby realizing the rotation of the driving shaft 5 on the reel chain. The structure is simple and easy to install.

[0032] Specifically, in this embodiment, the transmission assembly 6 is mounted on the mounting plate 4, so that the transmission assembly 6 can be connected to the driving shaft 5 between the mounting plate 4 and the wing plate. When the mounting plate 4 is later installed on the housing 1, it is only necessary to connect the first bevel gear 21 and the second bevel gear 61.

[0033] In some embodiments, the box 1 can be made of Figure 1 、 Figure 3 See also Figure 1 、 Figure 3 The box body 1 is also equipped with a pressing block 7 for pressing the mounting plate 4 against the wing plate. The box body 1 is also threaded with a fastener 71 for fixing the pressing block 7 to the box body 1. When the mounting plate 4 is mounted on the wing plate, the mounting plate 4 is arranged parallel to the wing plate. The fastener 71 is a bolt. The pressing block 7 is fixed to the box body 1 by the fastener 71. The pressing block 7 fits the bottom end of the mounting plate 4 and presses the mounting plate 4 against the wing plate, which can improve the stability of the connection between the mounting plate 4 and the wing plate.

[0034] In some embodiments, the pressing block 7 may be formed as follows: Figure 1 、 Figure 3 See also Figure 1 、 Figure 3 One side of the pressing block 7 is provided with an inclined surface for contact with the outer side of the mounting plate 4. The portion of the pressing block 7 closest to the mounting plate 4 is an inclined surface. When the pressing block 7 is installed on the housing 1, the inclined surface and the mounting plate 4 are arranged parallel to each other and slide in contact with the outer side of the mounting plate 4. The axis of the fastener 71 is arranged in a vertical direction. When the fastener 71 is tightened, the pressing block 7 is pressed downward by the fastener 71, and the inclined surface of the pressing block 7 can squeeze the mounting plate 4 onto the wing plate. This ensures the stability of the mounting plate 4 installed on the wing plate.

[0035] In some embodiments, the pressing block 7 may be formed as follows: Figure 1 、 Figure 3 See also Figure 1 、 Figure 3 The box body 1 is provided with a mounting groove for mounting the pressure block 7. A guide surface is provided on the side of the pressure block 7 away from the inclined surface. The guide surface is inclined upward in the direction away from the inclined surface. The side wall of the mounting groove is provided with a chamfer that slides with the guide surface. A guide surface is provided on the side of the pressure block 7 away from the inclined surface. The guide surface is inclined from bottom to top in the direction away from the inclined surface. When the mounting plate 4 is mounted on the wing plate, the bottom end of the mounting plate 4 is located inside the mounting groove, and the outer side surface of the mounting plate 4 is arranged opposite to the chamfer to form a V-shaped groove for placing the pressure block 7, so that when the fastener 71 presses the pressure block 7 and moves downward, the mounting plate 4 can be pressed against the wing plate through the guidance of the inclined surface and the guide surface. At the same time, the installation and disassembly of the pressure block 7 can be facilitated.

[0036] Specifically, in this embodiment, a pin is further provided between the pressing block 7 and the box body 1 to facilitate positioning the installation position of the pressing block 7, thereby facilitating subsequent disassembly and assembly.

[0037] In some embodiments, the transmission shaft 2 may be Figure 2 、 Figure 4 See also Figure 2 、 Figure 4 Two third bevel gears 22 are mounted in the middle of the transmission shaft 2, and a fourth bevel gear 31 is mounted on the output shaft 3, which is in transmission connection with the third bevel gears 22. Two third bevel gears 22 are fixedly mounted in the middle of the transmission shaft 2, and the two third bevel gears 22 are evenly coaxially arranged with the transmission shaft 2. The fourth bevel gear 31 is fixedly mounted at the end of the output shaft 3 and is coaxially arranged with the output shaft 3. The output shaft 3 and the transmission shaft 2 are arranged perpendicular to each other, and the transmission connection between the output shaft 3 and the transmission shaft 2 is achieved through the transmission between the third bevel gears 22 and the fourth bevel gear 31.

[0038] In some embodiments, the box 1 can be made of Figure 1 、 Figure 2 See also Figure 1 、 Figure 2 A main shaft sleeve 8 is also rotatably mounted on the housing 1. The main shaft sleeve 8 is spaced and parallel to the transmission shaft 2, and the two shafts are in driving connection with each other. A main shaft sleeve 8 is also rotatably mounted on the housing 1. The main shaft sleeve 8 extends through the housing 1 and has an anti-rotation edge on its inner wall. An external drive shaft can be mounted inside the main shaft sleeve 8, thereby driving the main shaft sleeve 8 in rotation. Furthermore, the configuration of the main shaft sleeve 8 allows a single drive shaft to synchronously drive the rotation of multiple main shaft sleeves 8, thereby enabling multiple housings 1 to use the same drive shaft to drive the plowing chain and stalk pulling roller.

[0039] Specifically, in this embodiment, the main shaft sleeve 8 and the transmission shaft 2 are connected to each other through gears.

[0040] In some embodiments, the box 1 can be made of Figure 1 The structure shown. Figure 1 A cover plate 9 is detachably mounted on the end surface of the housing 1, and the two output shafts 3 are rotatably mounted on the cover plate 9. The cover plate 9 is fixedly mounted on the end surface of the housing 1 by bolts. The output shafts 3 are rotatably mounted on the cover plate 9, and the fourth bevel gear 31 is fixedly mounted on the output shafts 3. During assembly, the output shafts 3 and the fourth bevel gear 31 can be first fixed to the cover plate 9, and then the cover plate 9 is fixed to the housing 1. This makes on-site assembly more convenient.

[0041] Specifically, in this embodiment, two pins for locating the installation position of the cover plate 9 are provided between the cover plate 9 and the box body 1 .

[0042] Preferably, in this embodiment, a sealing ring is further installed between the cover plate 9 and the box body 1 to ensure a sealing effect between the cover plate 9 and the box body 1 when the cover plate 9 is installed on the box body 1 .

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A narrow row spacing corn ear picking gearbox, characterized in that: include: A box body (1), wherein two wing plates are fixedly mounted on the top of the box body (1), and the two wing plates are arranged on the box body (1) in a relatively inclined manner; A transmission shaft (2) is rotatably arranged inside the housing (1), first bevel gears (21) are mounted on both ends of the transmission shaft (2), and the length direction of the transmission shaft (2) is arranged along the arrangement direction of the two wing plates; There are two output shafts (3), which are connected to the transmission shaft (2) in a transmission manner and are used to drive the stem pulling roller to rotate; A mounting plate (4) is detachably mounted on the wing plate, and a driving shaft (5) of the plowing chain is rotatably mounted on the mounting plate (4); The transmission assembly (6) is installed between the driving shaft (5) and the first bevel gear (21) and is used to connect the driving shaft (5) and the first bevel gear (21).

2. The narrow-row-spacing corn ear picking gearbox according to claim 1, characterized in that: The transmission assembly (6) comprises: a second bevel gear (61) rotatably mounted on the mounting plate (4) and meshing with the first bevel gear (21); a first spur gear (62) coaxially arranged with the second bevel gear (61) and in transmission connection with the second bevel gear (61); The second spur gear (63) is coaxially arranged with the driving shaft (5) and is in transmission connection with the driving shaft (5). The second spur gear (63) is meshed with the first spur gear (62).

3. The narrow-row-spacing corn ear picking gearbox according to claim 1, characterized in that: The box body (1) is also provided with a pressing block (7) for pressing the mounting plate (4) onto the wing plate, and the box body (1) is also threadedly connected with a fastener (71) for fixing the pressing block (7) to the box body (1).

4. The narrow-row-spacing corn ear picking gearbox according to claim 3, characterized in that: One side of the pressing block (7) is provided with an inclined surface for fitting to the outer side surface of the mounting plate (4).

5. The narrow-row-spacing corn ear picking gearbox according to claim 4, characterized in that: The box body (1) is provided with an installation groove for installing a pressure block (7), and a guide surface is provided on the side of the pressure block (7) away from the inclined surface. The guide surface is inclined upward in a direction away from the inclined surface, and a chamfer is provided on the side wall of the installation groove for sliding engagement with the guide surface.

6. The narrow-row-spacing corn ear picking gearbox according to claim 1, characterized in that: Two third bevel gears (22) are installed in the middle of the transmission shaft (2), and a fourth bevel gear (31) transmission-connected to the third bevel gears (22) is installed on the output shaft (3).

7. The narrow-row-spacing corn ear picking gearbox according to claim 1, characterized in that: A main shaft sleeve (8) is also rotatably provided on the box body (1), the main shaft sleeve (8) and the transmission shaft (2) are arranged in parallel with each other, and the main shaft sleeve (8) and the transmission shaft (2) are connected to each other in a transmission manner.

8. The narrow-row-spacing corn ear picking gearbox according to claim 1, characterized in that: A cover plate (9) is detachably mounted on the end surface of the box body (1), and the two output shafts (3) are rotatably mounted on the cover plate (9).

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