Harvester long ear tooth box and corn machine

Abstract

The utility model provides a kind of long ear tooth box for harvester and corn machine, long ear tooth box for harvester includes shell, transmission main shaft is equipped in the shell, at least one end of transmission main shaft projects shell;The upper side both ends of the shell are rotatably connected with first weeding shaft and second weeding shaft, and the lower end of first weeding shaft and the lower end of second weeding shaft are all inserted into shell and are respectively with one end of transmission main shaft transmission coupling;The side of the shell is rotatably connected with first ear shaft and second ear shaft, and the end of first ear shaft and the end of second ear shaft are all inserted into shell and with the middle part of transmission main shaft transmission coupling.The utility model is adopted, by the shell and transmission main shaft of lengthening design, two weeding sprocket wheels and two ear rollers can be driven simultaneously, and the whole machine is conveniently arranged;Without setting power transmission structure for left and right two short ear tooth boxes respectively, the distance of two weeding sprocket wheels is increased, and the risk of interference is reduced.

Description

Technical Field

[0001] This utility model relates to the field of harvesting machinery technology, specifically to a long ear-picking tooth box for a harvester and a corn harvester. Background Technology

[0002] The ear-picking tooth box is a crucial component of a corn harvester, used for power transmission between the picking chain and the ear-picking roller. Currently, the mainstream ear-picking tooth boxes on the market are generally designed with two short ear-picking tooth boxes on the left and right sides, with similar structures. This design is compact, but makes overall machine layout difficult, and can easily lead to interference between the chain and other components during operation. Extended left and right ear-picking tooth boxes, due to the housing's limitations, have longer drive shafts, making them more susceptible to deformation under stress, resulting in increased gear noise and bearing damage. Utility Model Content

[0003] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0004] This utility model provides a long ear-picking tooth box for a harvester, including a housing, a transmission main shaft inside the housing, at least one end of the transmission main shaft extending out of the housing; a first ear-picking shaft and a second ear-picking shaft are rotatably connected to the upper two ends of the housing, the lower ends of the first ear-picking shaft and the lower ends of the second ear-picking shaft both extend into the housing and are respectively connected to one end of the transmission main shaft; a first ear-picking shaft and a second ear-picking shaft are rotatably connected to one side of the housing, one end of the first ear-picking shaft and one end of the second ear-picking shaft both extend into the housing and are connected to the middle part of the transmission main shaft.

[0005] The beneficial effects of this utility model are:

[0006] By employing this utility model, through the extended housing and transmission main shaft design, two reeling sprockets and two ear-picking rollers can be driven simultaneously without the need to adjust the two short ear-picking tooth boxes on the left and right, making the overall machine layout convenient. At the same time, one end of the transmission main shaft extends out of the housing to transmit power, eliminating the need to set up separate power transmission structures for the two short ear-picking tooth boxes on the left and right, increasing the distance between the two reeling sprockets, and reducing the risk of interference.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, one end of the drive shaft extends out of the housing and is connected to an input sprocket, while the other end of the drive shaft extends out of the housing and is connected to an output flange.

[0009] The input sprocket can be used to connect with the sprocket on the engine output shaft via a chain, while the output flange can be used to connect external equipment to output power to other gearboxes and other equipment. It is easy to install, meets the power output requirements, and has good adaptability.

[0010] Furthermore, both ends and the middle of the transmission spindle are connected to the housing via bearings.

[0011] The drive shaft is reinforced with three bearings, resulting in smoother power transmission, less gear meshing runout, and effectively reduced noise and oil leakage risks, thus reducing product failure rate and maintenance costs.

[0012] Furthermore, both the lower ends of the first and second reeling shafts are fixed with reeling input bevel gears, and both ends of the transmission main shaft are connected with reeling output bevel gears. The reeling input bevel gear at the lower end of the first reeling shaft meshes with the reeling output bevel gear at one end of the transmission main shaft, and the reeling input bevel gear at the lower end of the second reeling shaft meshes with the reeling output bevel gear at the other end of the transmission main shaft; the small ends of the two reeling output bevel gears are arranged opposite each other.

[0013] The bevel gear transmission takes into account the need for power transmission and steering from the main drive shaft to the picking shaft; the small ends of the two picking output bevel gears are arranged opposite each other, which makes it easy for the two picking shafts and sprockets to rotate in opposite directions, thereby simultaneously moving the corn stalks toward the picking roller.

[0014] Furthermore, the transmission main shaft is provided with a picking output bevel gear in the middle, and a multi-gear is rotatably connected to one side of the housing. The multi-gear has a cylindrical section and a conical section. The conical section meshes with the picking output bevel gear, and the cylindrical section is connected to the first picking shaft and the second picking shaft respectively.

[0015] By engaging the conical section of the multi-gear transmission with the picking output bevel gear, the power is first redirected, and then transmitted to the first and second picking shafts via the cylindrical section of the multi-gear transmission. This reduces the bending moment load on the main transmission shaft, resulting in smoother power transmission and less gear meshing vibration. This effectively reduces the risk of noise and oil leakage, and consequently lowers the product's failure rate and maintenance costs.

[0016] Furthermore, an idler wheel is rotatably connected to one side of the housing, and a picking input gear is provided at one end of the first picking shaft and one end of the second picking shaft. The idler wheel and the picking input gear of the first picking shaft mesh with the cylindrical section of the multi-gear, and the picking input gear of the second picking shaft meshes with the idler wheel.

[0017] By using an idler wheel to turn the direction, it is easy to make the first and second ear-picking shafts rotate in opposite directions, thereby driving the ear-picking rollers to move in opposite directions to achieve ear picking.

[0018] Furthermore, a bushing is provided at the other end of both the first and second picking shafts.

[0019] It facilitates connection to external picking rollers.

[0020] Furthermore, the lower side of the housing is also provided with a bottom cover, and the edge of the opening on the lower side of the housing is sealed to the bottom cover.

[0021] When the bottom cover is removed, components such as the drive shaft and reel shaft inside the housing can be disassembled for easy maintenance.

[0022] Furthermore, the bottom cover is also provided with an oil drain port.

[0023] During maintenance, the lubricating oil inside the housing can be drained in advance through the drain port to reduce weight and facilitate maintenance.

[0024] This facilitates sealing between the edge of the opening on the lower side of the housing and the bottom cover, and by increasing the number of bolt connections, it ensures that the cover does not leak oil.

[0025] This utility model provides a corn harvester, which is equipped with the aforementioned long ear-picking tooth box for harvesters.

[0026] The overall layout is convenient; one end of the drive shaft extends out of the housing to transmit power, eliminating the need to set up separate power transmission structures for the two short ear-picking gear boxes on the left and right, increasing the distance between the two sprockets and reducing the risk of interference. Attached Figure Description

[0027] Figure 1 This is a front structural diagram of the present invention.

[0028] Figure 2 for Figure 1 Top view.

[0029] Figure 3 for Figure 2 The left view.

[0030] Figure 4 for Figure 3 A sectional view along the AA direction.

[0031] Figure 5 for Figure 4 BB-axis rotated section view.

[0032] In the accompanying drawings, the technical features represented by each reference numeral are as follows:

[0033] 1-Housing; 2-Main drive shaft; 3-First reeling shaft; 4-Second reeling shaft; 5-Reeling sprocket; 6-First ear-picking shaft; 7-Second ear-picking shaft; 8-Input sprocket; 9-Output flange; 10-Reeling output bevel gear; 11-Reeling input bevel gear; 12-Ear-picking output bevel gear; 13-Multi-gear; 14-Ear-picking input gear; 15-Idler gear; 16-Spherical bushing; 17-Bottom cover; 18-Oil drain port. Detailed Implementation

[0034] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0035] This utility model refers to Figure 1-5 .

[0036] Example 1:

[0037] This utility model provides a long ear-picking tooth box for a harvester, including a housing 1. A transmission main shaft 2 is provided inside the housing 1, with at least one end of the transmission main shaft 2 extending out of the housing 1. A first reeling shaft 3 and a second reeling shaft 4 are rotatably connected to the upper two ends of the housing 1. The lower ends of the first reeling shaft 3 and the second reeling shaft 4 both extend into the housing 1 and are respectively connected to one end of the transmission main shaft 2. A first ear-picking shaft 6 and a second ear-picking shaft 7 are rotatably connected to one side of the housing 1. One end of the first ear-picking shaft 6 and one end of the second ear-picking shaft 7 both extend into the housing 1 and are connected to the middle part of the transmission main shaft 2.

[0038] When the harvester of this invention is installed with a long ear-picking toothed box, the housing 1 is fixed to the harvester's cutter head. One end of the transmission main shaft 2 is connected to the output shaft of the harvester's engine. The upper ends of the first ear-picking shaft 3 and the second ear-picking shaft 4 are both connected to ear-picking sprockets 5. The other ends of the first ear-picking shaft 6 and the second ear-picking shaft 7 are both connected to ear-picking rollers. During operation, the transmission main shaft 2 drives the first ear-picking shaft 3 and the second ear-picking shaft 4, thereby causing the ear-picking sprockets 5 to rotate and move the corn stalks towards the ear-picking rollers. Simultaneously, the transmission main shaft 2 drives the first ear-picking shaft 6 and the second ear-picking shaft 7 to rotate, thereby causing the ear-picking rollers to rotate and pick the ears from the corn stalks.

[0039] By employing this utility model, the extended housing 1 and transmission main shaft 2 can simultaneously drive two reeling sprockets 5 and two ear-picking rollers, eliminating the need to adjust the two short ear-picking gear boxes on the left and right, thus simplifying the overall machine layout. At the same time, one end of the transmission main shaft 2 extends out of the housing 1 to transmit power, eliminating the need to set up separate power transmission structures for the two short ear-picking gear boxes on the left and right, increasing the distance between the two reeling sprockets 5, and reducing the risk of interference.

[0040] Furthermore, one end of the transmission spindle 2 extends out of one end of the housing 1 and is connected to the input sprocket 8, and the other end of the transmission spindle 2 extends out of the other end of the housing 1 and is connected to the output flange 9.

[0041] Preferably, the input sprocket 8 is connected to the transmission spindle 2 via a key drive, and the output flange 9 is connected to the transmission spindle 2 via a key drive.

[0042] The input sprocket 8 can be used to connect with the sprocket of the engine output shaft via a chain, and the output flange 9 can be used to connect external equipment to output power to other gearboxes and other equipment. It is easy to install, takes into account the power output needs, and has good adaptability.

[0043] Furthermore, both ends and the middle of the transmission spindle 2 are connected to the housing 1 via bearings.

[0044] Preferably, the bearing of the transmission spindle 2 is a ball bearing.

[0045] The transmission spindle 2 is reinforced by three bearings, resulting in smoother power transmission, less gear meshing runout, and effectively reduced noise and oil leakage risks, thus reducing product failure rate and maintenance costs.

[0046] Furthermore, a reeling input bevel gear 11 is fixed to the lower end of the first reeling shaft 3 and the lower end of the second reeling shaft 4. Both ends of the transmission main shaft 2 are connected to a reeling output bevel gear 10. The reeling input bevel gear 11 at the lower end of the first reeling shaft 3 meshes with the reeling output bevel gear 10 at one end of the transmission main shaft 2, and the reeling input bevel gear 11 at the lower end of the second reeling shaft 4 meshes with the reeling output bevel gear 10 at the other end of the transmission main shaft 2. The small ends of the two reeling output bevel gears 10 are arranged opposite each other.

[0047] Preferably, the first reeling shaft 3, the second reeling shaft 4 and their corresponding reeling input bevel gear 11 are connected by forging as a single unit; the transmission main shaft 2 and the reeling output bevel gear 10 are connected by key transmission.

[0048] The bevel gear transmission takes into account the need for power transmission and steering from the main transmission shaft 2 to the picking shaft; the small ends of the two picking output bevel gears 10 are arranged opposite each other, which makes it easy for the two picking shafts and sprockets to rotate in opposite directions, thereby simultaneously moving the corn stalks toward the picking roller.

[0049] Furthermore, the transmission main shaft 2 is provided with a picking output bevel gear 12 in the middle, and a multi-gear 13 is rotatably connected to one side of the housing 1. The multi-gear 13 is provided with a cylindrical section and a conical section. The conical section meshes with the picking output bevel gear 12, and the cylindrical section is connected to the first picking shaft 6 and the second picking shaft 7 respectively.

[0050] Preferably, a first intermediate shaft is provided on one side of the housing 1, and the first intermediate shaft, the first ear-picking shaft 6 and the second ear-picking shaft 7 are arranged in parallel, and the multi-gear 13 is rotatably connected to the first intermediate shaft through bearings.

[0051] By engaging the conical section of the multi-gear 13 with the picking output bevel gear 12, the power is first redirected, and then transmitted to the first picking shaft 6 and the second picking shaft 7 via the cylindrical section of the multi-gear 13. This reduces the bending moment load on the transmission main shaft 2, making the power transmission on the transmission main shaft 2 smoother and reducing gear meshing vibration. This effectively reduces the risk of noise and oil leakage, and effectively reduces the product's failure rate and maintenance costs.

[0052] Furthermore, an idler wheel 15 is rotatably connected to one side of the housing 1, and a picking input gear 14 is provided at one end of the first picking shaft 6 and one end of the second picking shaft 7. The idler wheel 15 and the picking input gear 14 of the first picking shaft 6 respectively mesh with the cylindrical section of the multi-gear 13, and the picking input gear 14 of the second picking shaft 7 meshes with the idler wheel 15.

[0053] Preferably, a second intermediate shaft is provided on one side of the housing 1, and the first intermediate shaft, the second intermediate shaft, the first ear-picking shaft 6 and the second ear-picking shaft 7 are arranged in parallel, and the idler wheel 15 is rotatably connected to the second intermediate shaft through a bearing.

[0054] By using the idler wheel 15 to turn the direction, it is easy to make the first ear-picking shaft 6 and the second ear-picking shaft 7 rotate in opposite directions, thereby driving the ear-picking roller to move in opposite directions to achieve ear picking.

[0055] Furthermore, a bushing is provided at the other end of the first ear-picking shaft 6 and the other end of the second ear-picking shaft 7.

[0056] Preferably, the bushing is a spherical bushing 16.

[0057] It facilitates connection to external picking rollers.

[0058] Furthermore, a bottom cover 17 is provided on the lower side of the housing 1, and the edge of the opening on the lower side of the housing 1 is sealed to the bottom cover 17.

[0059] When the bottom cover 17 is removed, components such as the drive shaft 2 and the reel shaft inside the housing 1 can be disassembled and installed, which facilitates maintenance.

[0060] Furthermore, the bottom cover 17 is also provided with an oil drain port 18.

[0061] During maintenance, the lubricating oil inside the housing 1 can be drained in advance through the drain port 18 to reduce weight and facilitate maintenance.

[0062] Preferably, the edge of the lower opening of the housing 1 is connected to the bottom cover 17 by bolts, and a sealing gasket is provided between the edge of the lower opening of the housing 1 and the bottom cover 17.

[0063] This facilitates the sealing of the edge of the lower opening of the housing 1 with the bottom cover 17, and the increased number of bolt connections ensures that the cover does not leak oil.

[0064] Example 2:

[0065] This utility model provides a corn harvester, which is equipped with the long ear-picking tooth box for harvesters of Embodiment 1.

[0066] The overall layout is convenient; one end of the transmission main shaft 2 extends out of the housing 1 to transmit power, eliminating the need to set up separate power transmission structures for the two short ear-picking gear boxes on the left and right, increasing the distance between the two sprockets 5 and reducing the risk of interference.

[0067] In the description of this utility model, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this utility model and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0068] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this utility model, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixing," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixing" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0070] In this utility model, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood according to the specific circumstances, the context, and the coherence of the preceding and following text.

[0071] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.

Claims

1. A long ear-picking tooth box for a harvester, characterized in that: The device includes a housing (1), inside which is a transmission shaft (2), at least one end of which extends out of the housing (1); a first reeling shaft (3) and a second reeling shaft (4) are rotatably connected to the upper two ends of the housing (1), the lower ends of the first reeling shaft (3) and the second reeling shaft (4) both extend into the housing (1) and are respectively connected to one end of the transmission shaft (2); a first ear-picking shaft (6) and a second ear-picking shaft (7) are rotatably connected to one side of the housing (1), one end of the first ear-picking shaft (6) and one end of the second ear-picking shaft (7) both extend into the housing (1) and are connected to the middle part of the transmission shaft (2).

2. The long ear-picking tooth box for a harvester according to claim 1, characterized in that: The transmission spindle (2) extends out of one end of the housing (1) and is connected to the input sprocket (8). The transmission spindle (2) extends out of the other end of the housing (1) and is connected to the output flange (9).

3. The long ear-picking tooth box for a harvester according to claim 2, characterized in that: The two ends and the middle of the transmission main shaft (2) are connected to the housing (1) through bearings.

4. The long ear-picking tooth box for a harvester according to claim 1, characterized in that: The lower ends of the first reeling shaft (3) and the second reeling shaft (4) are both fixed with reeling input bevel gears (11). Both ends of the transmission main shaft (2) are connected with reeling output bevel gears (10). The reeling input bevel gear (11) at the lower end of the first reeling shaft (3) meshes with the reeling output bevel gear (10) at one end of the transmission main shaft (2). The reeling input bevel gear (11) at the lower end of the second reeling shaft (4) meshes with the reeling output bevel gear (10) at the other end of the transmission main shaft (2). The small ends of the two reeling output bevel gears (10) are arranged opposite each other.

5. The long ear-picking tooth box for a harvester according to claim 1, characterized in that: The transmission main shaft (2) is provided with a picking output bevel gear (12) in the middle. A multi-gear (13) is rotatably connected to one side of the housing (1). The multi-gear (13) is provided with a cylindrical section and a conical section. The conical section meshes with the picking output bevel gear (12), and the cylindrical section is connected to the first picking shaft (6) and the second picking shaft (7) respectively.

6. The long ear-picking tooth box for a harvester according to claim 5, characterized in that: An idler wheel (15) is rotatably connected to one side of the housing (1). One end of the first ear-picking shaft (6) and one end of the second ear-picking shaft (7) are provided with ear-picking input gears (14). The idler wheel (15) and the ear-picking input gear (14) of the first ear-picking shaft (6) respectively mesh with the cylindrical section of the multi-gear (13). The ear-picking input gear (14) of the second ear-picking shaft (7) meshes with the idler wheel (15).

7. The long ear-picking tooth box for a harvester according to claim 1, characterized in that: Both the other end of the first ear-picking shaft (6) and the other end of the second ear-picking shaft (7) are provided with bushings.

8. The long ear-picking tooth box for a harvester according to any one of claims 1-7, characterized in that: The lower side of the housing (1) is also provided with a bottom cover (17), and the edge of the opening on the lower side of the housing (1) is sealed to the bottom cover (17).

9. The long ear-picking tooth box for a harvester according to claim 8, characterized in that: The bottom cover (17) is also provided with an oil drain port (18).

10. A corn harvester, characterized in that: It is equipped with a long ear-picking tooth box for harvesters as described in any one of claims 1-9.

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