JPH0142430Y2 - - Google Patents

Description

[Detailed explanation of the invention] Conventionally, in combine harvesters in which the drive system of the pre-processing device and the drive system of the traveling device are linked, and the threshing device is driven independently, when the traveling clutch or the pre-processing clutch is disengaged, the forward If grain culm remains in the grain culm conveying device of the processing equipment, the feed chain of the threshing device only pulls the stock base of the grain culm that is stopped, resulting in the tip being delayed, resulting in unhandled grain and culm leakage. There were flaws.

In order to improve the above-mentioned drawbacks, the present invention provides a threshing device that is independent of the drive system of the pre-processing device and the drive system of the traveling device, which consists of a reaping device and a grain conveying device that transports the harvested grain culm toward the threshing device. In the combine, which is driven by the grain culm conveying device and the feed chain of the threshing device, the grain culm conveyance device and the feed chain of the threshing device rotate diagonally forward and upward about an axis substantially parallel to the culm direction to interrupt the inheritance of the grain culm. The blocking rod is rotatably supported,
The blocking rod is interlocked with the traveling clutch or the pre-processing clutch, so that when the pre-processing device is stopped, the blocking rod catches grain culms that are about to be transferred to the feed chain of the threshing device, so that they are not inherited. This is a characteristic feature.

The embodiment shown in the drawings will be explained below.1
is a threshing device mounted on one side of a machine base 3 having a traveling device 2, and in front of the threshing device is provided a pre-processing device consisting of a reaping device 4 and a grain culm conveying device 5. The device 5 has a stock head conveyor 6, which clamps and transports the stock part of the grain culm with a conveying chain 6a and a clamping rail 6b, as the lower part, and a tine-equipped chain 7 on the ear side.
The ear-side conveying body 7, which is conveyed by a guide rod 7b, is disposed in an upper position.

8 is an engine pulley having a plurality of V grooves, and a V belt 11 is stretched between it and the pulley 10 of the traveling mission 9, and another V belt 13 is stretched between it and the threshing input pulley 12. The pre-processing input pulley 14 is driven by the pulley 10 via the V-belt 15, and the pre-processing clutch pulley 16 is connected to the operating panel 1 via the operating wire 17.
The arm 21 of the traveling clutch pulley 20 is actuated by a pedal 23 via a rod 22.

The feed chain 24 of the threshing device 1
The front part of a is wrapped around a floating sprocket 25, and the upper end of a U-shaped mounting rod 27a that straddles the feed chain 24a is rotatably supported on the shaft 26 of the floating sprocket 25. The blocking rod 27, whose base is fixed to the lower part of the feed chain 27a, is always located between the chain plates of the feed chain 24a, extending from the rotating section to the upper surface.
is connected to the arm 21 of the traveling clutch pulley 20 via the operating wire 28,
When the pedal 23 is stepped on to cut off the power to the traveling device 2 and the pre-processing device, the arm 21 moves to the operating wire 28.
As the mounting rod 27a is rotated rearward as shown by the chain line in FIG.
Since the grain culm 29 that is to be inherited from the feed chain 24a is intercepted and the inheritance route is cut off, the feed chain 24a can pull in the stopped grain culm and transport it between it and the pinning rail 24b. do not have.

In addition, 30 in the drawing is a highly elastic guide rod, 31
32 is a guide rod with weak elasticity, and 32 is a threshing clutch pulley.

In addition, if the front end of the operating wire 28 is connected to the arm 16a of the pre-processing clutch pulley 16 so that the operating wire 28 is tensioned when the clutch is disengaged, the pre-processing clutch pulley 16 may be cut and operated before the clutch pulley 16 is disengaged in order to cut corners. Even if the machine is stopped, or even if only the preprocessing clutch lever 19 is turned off and operated to stop only the preprocessing device and the traveling device 2 is driven to rotate the machine during work, the blocking lever 2 will not work.
7 is standing and rotating.

As mentioned above, the present invention independently drives the threshing device separately from the drive system of the preprocessing device and the drive system of the traveling device, which consists of the reaping device and the grain culm conveying device that transports the harvested grain culm toward the threshing device. In such a combine harvester, a blocking rod is provided between the grain culm conveying device and the feed chain of the threshing device, which rotates diagonally forward and upward about an axis substantially parallel to the culm direction to interrupt inheritance of the grain culm. Since it is rotatably supported and the blocking rod is interlocked with the travel clutch or the pre-treatment clutch, the threshing device is driven while the pre-treatment device is stopped, and the grain culms that have already been supplied are threshed and the remaining grains are removed. While the sorting of the threshed grains is continuing and manual handling work is being carried out, the stock base of the grain culm in the grain conveying device of the pre-processing device is caught by the blocking rod and transferred to the front grain culm conveying device. This prevents grain culms from being pushed back toward the equipment and from causing culm leakage or unhandled grains due to the grain culms staying in the transfer section being transported by the feed chain only at the stock base. A wide feeding space can be secured above the starting end of the grain culm, whose front part is divided by a blocking rod, and the blocking rod can prevent the supplied grain culm from slipping toward the grain culm conveying device. .

Furthermore, when the blocking rod is lowered to the non-operating position in order to restart the reaping and threshing operation, the blocking rod rotates around an axis substantially parallel to the culm direction, so that the grain culm moves in the culm direction. Therefore, the received grain culm can be fed to the threshing device without fluctuation in handling depth.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
FIG. 1 is a perspective view of the combine, FIG. 2 is a side view of the transmission, FIG. 3 is a side view of the main parts, and FIG. 4 is a front view of the same. DESCRIPTION OF SYMBOLS 1... Threshing device, 4... Reaping device, 6... Stock source conveyor, 16... Pretreatment clutch pulley, 20
... Traveling clutch pulley, 27... Blocking rod.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which the threshing device is independently driven separately from the drive system of the pre-processing device and the drive system of the traveling device, which are composed of a reaping device and a grain culm conveying device that conveys the harvested grain culm toward the threshing device. Between the grain culm conveyance device and the feed chain of the threshing device, a blocking rod is rotatably supported to rotate obliquely forward and upward about an axis substantially parallel to the culm direction to interrupt inheritance of the grain culm, A grain culm transfer device for a combine harvester, characterized in that the blocking rod is interlocked with a travel clutch or a pretreatment clutch.