JPH0510571Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention uses four or more star wheels to rake and convey grain culms from a reaping device to the rear of the machine.
The present invention relates to a grain culm conveying section structure of a combine harvester, which is provided with a drive mechanism that is arranged in parallel in the lateral direction of the machine body in an interlocking state and drives only one of the star wheels.

[Conventional technology]

Such a combine harvester is configured such that when four or more star wheels are driven, only one of the star wheels is driven by a drive mechanism, thereby driving the front portion of the remaining star wheels. The structure is such that the drive structure can be simplified.

Conventionally, in this type of combine harvester, as shown in Japanese Utility Model Application Publication No. 58-125945, the grain culms being raked and conveyed from two of the four star wheels located on the right side of the machine. In order to transport the grain to the upper left side of the threshing section, the first transport device transports it to the left side and lifts it upward to the rear, and the remaining two stars located on the left side of the machine out of the four star wheels. The grain stalks from the wheels were configured to be merged into the first conveying device by a second conveying device.

To be more specific, the rotation direction of the star wheel located on the right side of the aircraft among the four star wheels was configured to be counterclockwise in plan view. The grain culms from the two star wheels located at In this case, the first conveying device is placed in an inclined position such that the farther back the first conveying device is, the further left it is located.

[Problem that the invention attempts to solve]

As described above, in the configuration in which the grain culm from the star wheel located on the right side of the machine is immediately lifted and conveyed by the first conveying device, the first conveying device lifts and conveys the grain to the confluence point of the first conveying device and the second conveying device. Because the distance becomes longer, especially when transporting moist grain culms, the gripping position of the first conveying device relative to the grain culms is more likely to deviate from the desired position due to slippage, etc. When the grain culms from the conveying device are combined and supplied to the threshing section, the grain culms may not be delivered to the threshing section properly.

An object of the present invention is to simplify the drive structure for the star wheel while minimizing the lifting and conveying distance.

[Means for Solving the Problems] The characteristic configuration of the present invention is that, in the above-mentioned conveyor structure of the combine harvester, the driving mechanism is arranged such that the rotation direction of the star wheel located on the right side of the machine body among the star wheels is flat. It is a mechanism that drives the star wheel clockwise when viewed, and the star wheel located second from the right side of the aircraft among the star wheels is moved beyond the outer diameter of the two star wheels located on both sides of it. The star wheel is formed to have a small diameter and is positioned at the rear of the machine from the front end of the reaping device and at the front of the machine from the rear ends of the two star wheels located on both sides. Linear lateral conveyance in which grain culms from the three star wheels located on the right side of the machine are transported to the left side of the machine while being positioned at a constant level along or almost along the lateral direction of the machine. The path portion has a claw portion of only the star wheel located second from the right side of the aircraft body out of the star wheels, and
A first conveyance device having a vertical conveyance path portion that lifts the grain culms from the horizontal conveyance path portion and conveys them to the rear of the machine body and supplies them to the threshing section is provided, and three of the star wheels located on the right side of the machine body are provided. The present invention is characterized in that a second conveyance device is provided which causes the grain culms from the remaining star wheels, excluding the star wheels, to merge with the starting end of the vertical conveyance path portion, and its functions and effects are as follows.

[Effect]

If the outer diameter of the star wheel located second from the right side of the aircraft is smaller than the outer diameter of the two star wheels located on both sides of the star wheel, this small diameter star wheel can be The claws can be arranged so as to prevent them from protruding forward from the reaping device and to avoid acting on the lateral conveyance path, so that lateral conveyance can be carried out without any trouble. Then, the grain culms that are transported to the side of the machine through the horizontal transport path at a constant level and the grain culms that are transported by the second transport device are merged at the starting end of the vertical transport path, and these grain culms are The robot is lifted up and transported to the rear of the aircraft.

[Effect of idea]

Therefore, by setting the rotation direction of the star wheel as described above and changing the size of the second star wheel from the right side of the aircraft, it is possible to drive all star wheels by just driving one star wheel. While making it possible to transport the grain culm horizontally from the three star wheels located on the right side of the machine, the point where the grain culm is lifted and transported is set as close as possible to the confluence with the second transport device. As a result, while simplifying the drive structure of the star wheel, it is possible to shorten the lifting and conveying distance of the first conveying device to the meeting point of the first conveying device and the second conveying device. The culm can now be joined with the stock head in place, and the delivery to the threshing department can now be carried out smoothly.

In addition, as mentioned above, if the grain culms from the three star wheels located on the right side of the machine are conveyed horizontally and then conveyed vertically, the starting end of the vertically conveyed portion is Since the part can be located on the left side, the lifting and transporting distance from the second transporting device to the merging point can also be shortened, and the above effect can be further enhanced.

〔Example〕

As shown in FIG. 3, a reaping pre-processing section D is arranged in the front part of the machine body, which is equipped with a pair of left and right crawler traveling devices 1, 1, a threshing section 2, a control section 3, etc., and can be freely raised and lowered by a hydraulic cylinder 4. The combine harvester has been configured.

As shown in FIG. 1, the pre-reaping treatment section D includes five raising devices 5A, 5B,
C, 5D, and 5E are arranged side by side at appropriate intervals in the lateral direction of the machine body to form a grain culm introduction part to the clipper-type reaping device 6, and five pieces of grain culm are conveyed to the rear of the machine body. The first to fifth star wheels 9A to 9E are arranged in parallel in the lateral direction of the aircraft, and the third to fifth star wheels 9A to 9E are
A first conveying device A for conveying and supplying grain culms from the star wheels 9C to 9E to the threshing section 2 is provided, and the first and second star wheels 9A, 9
A second conveying device B is provided which lifts the grain culms from B and makes them join the first conveying device A.
Note that 7A and 7B shown in the figure are belt-type front conveyance devices for moving the cutting device toward the reaping device 6 side.

Said first to fifth star wheels 9A to 9E
are interlocked so that when only one first star wheel 9A is driven by a drive mechanism C, the remaining second to fifth star wheels 9B, 9C, 9D, and 9E can be driven. That is, as shown in FIG. 2, a main frame 12 that also serves as a transmission case extends toward the front of the aircraft from a horizontal transmission case 11 into which power from an engine (not shown) is input, and the front end of this main frame 12 A transverse reaping device transmission case 13 is fixed to the section, and the reaping device 6 is attached to this reaping device transmission case 13.
In addition to incorporating a transmission shaft 14 for driving the
A drive mechanism C is provided in which a drive shaft 15 for driving the first star wheel 9A is interlocked with the transmission shaft 14 to drive only one of the five star wheels 9A, 9B, 9C, 9D, and 9E. It is configured.

The first conveying device A is a linear horizontal conveyor that conveys the grain stems from the third to fifth star wheels 9C to 9E to the left side of the machine while positioning them at a constant level along the lateral direction of the machine. a horizontal conveyance device 17 having a path portion 16; and a vertical conveyance device 19 having a vertical conveyance path portion 18 that lifts grain culms from the horizontal conveyance device 17 while conveying them to the rear of the machine and supplies them to the threshing section 2. It is equipped with

Then, the drive mechanism C is operated so that the rotation direction of the fifth star wheel 9E is clockwise in a plan view, and the fourth star wheel 9D is operated at a position rearward of the machine body from the front end of the reaping device 6, and , said third and fifth located on both sides
The outer diameter of the star wheels 9C and 9E is smaller than that of the third and fifth star wheels 9C and 9E, so that the star wheels 9C and 9E can be disposed forward of the aircraft body from the rear ends of the star wheels 9C and 9E. When the grain culms from the third to fifth star wheels 9C to 9E are transported laterally by the transport device 17, the claw portion 9d of the fourth star wheel 9D, which is rotated counterclockwise, is disengaged from the horizontal transport path portion 16. Thus, lateral conveyance can be carried out satisfactorily without being blocked by the fourth star wheel 9D.

The vertical conveyance device 19 is a stock side clamping conveyance device 1
9A and a tip side locking and conveying device 19B, these conveying devices 19A and 19B are attached to be vertically swingable around the rear axis P.

In short, the grain culms from the third to fifth star wheels 9C to 9E are moved to the left side of the aircraft body, and the grain culms from the first and second star wheels 9A and 9B are moved to the left side of the aircraft body. By merging at the starting end of the vertical conveying path portion 18, the first conveying device A and the second conveying device B reach the confluence point.
The lifting and conveying distance of the conveying device A can be shortened.

[Another example]

This invention consists of five star wheels 9A, 9B,
In addition to being applicable to combines equipped with 9C, 9D, and 9E, it is also applicable to combines equipped with 4 or 6 star wheels. In other words, in Figure 4,
The machine is equipped with four star wheels 9A, 9B, 9C, and 9D, and the grain culms from the three star wheels 9B, 9C, and 9D located on the right side of the machine are transferred to the threshing section by the first conveying device A. 2, and the remaining grain culms from the star wheel 9A are merged into the first transport device A by the second transport device B. Also, six star wheels 9 are shown in Figure 5.
A, 9B, 9C, 9D, 9E, 9F is shown, which means three star wheels 9D, 9E, 9F located on the right side of the fuselage and three star wheels 9A, 9B located on the left side of the fuselage. , 9C, the second star wheel 9B from the left side of the aircraft is replaced with two adjacent star wheels 9A,
Star wheels 9D, 9E, 9 are formed to have an outer diameter smaller than that of star wheel 9B, and are located on the right side of the fuselage.
The grain culm from F is transported to the threshing section 2 by the first transport device A, and the star wheel 9 located on the left side of the machine
Grain culms from A, 9B, and 9C are merged into the first transport device A by a second transport device B that can transport the grains laterally.

In the embodiment described above, the first conveying device A was configured with two conveying devices, the horizontal conveying device 17 and the vertical conveying device 19, but it is configured with one conveying device that can perform both horizontal conveying and vertical conveying. Good too.

Further, in the embodiment, one star wheel 9
Although the drive mechanism of the reaping device 6 is used to drive the star wheel 9A, a single star wheel 9A may be driven by a dedicated electric motor. Note that this electric motor is referred to as a drive mechanism A that drives one star wheel 9A.

Furthermore, in the above embodiment, the grain culms from the three star wheels 9C, 9D, and 9E located on the right side of the aircraft were conveyed along the lateral direction of the aircraft to the left side of the aircraft.
It may also be conveyed to the left lateral side of the aircraft along the lateral direction of the aircraft.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an example of the structure of the grain conveying section of the combine harvester according to the present invention, FIG. 1 is a schematic plan view of the pre-harvesting processing section, FIG. 2 is an exploded view showing the transmission structure of the star wheel, and FIG. The side view of the front part of the combine, and FIGS. 4 and 5 are schematic plan views showing another embodiment of the pre-reaping processing section. 2... Threshing section, 6... Reaping device, 9A, 9
B, 9C, 9D, 9E...Star wheel, 9d
...Claw portion, 16...Horizontal conveyance path portion, 18...Vertical conveyance path portion, A...First conveyance device, B...Second
Conveyance device, C... Drive mechanism.

Claims (1)

[Scope of utility model registration request] four or more star wheels 9A, 9B that scoop and convey grain culms from the reaping device 6 to the rear of the machine;
The star wheels 9A, 9B,
A grain culm conveying section structure of a combine provided with a drive mechanism C that drives only one of 9C, 9D, and 9E, wherein the drive mechanism C is connected to the star wheel 9.
This is a mechanism that drives the star wheel 9E, which is located on the right side of the aircraft among A, 9B, 9C, 9D, and 9E, so that the rotation direction is clockwise in a plan view, and the star wheels 9A, 9B, 9C,
Among the star wheels 9D and 9E, the star wheel 9D located second from the right side of the aircraft is formed to have an outer diameter smaller than the outer diameter of the two star wheels 9C and 9E located on both sides thereof. The star wheels 9A, 9B, 9C, The grain culms from the three star wheels 9C, 9D, and 9E located on the right side of the fuselage out of 9D and 9E are placed at a certain level along or almost along the lateral direction of the fuselage, while The linear lateral conveyance path portion 16 conveyed to the star wheels 9A, 9B,
Of the star wheels 9C, 9D, and 9E, the claw portion 9d of only the star wheel 9D located second from the right side of the machine is in a state of being removed from the route, and the machine is moved while lifting the grain culms from the horizontal conveyance route section 16. Vertical conveyance path portion 18 that is conveyed rearward and supplied to the threshing section 2
A first conveying device A is provided, and three of the star wheels 9A, 9B, 9C, 9D, and 9E located on the right side of the aircraft body,
The remaining star wheels 9 excluding 9D and 9E
A grain culm conveying section structure of a combine harvester, which is provided with a second conveying device B that causes grain culms from A and 9B to merge into the starting end of the vertical conveying path portion 18.