JPS5831161B2 - Power take-off device for the prime mover in a combine harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power take-off device for a prime mover in a combine harvester, which fixes a flywheel without wrapping straw around the crankshaft of the prime mover, and The purpose is to install a counter gearbox on the shaft side to make it difficult for heat from the prime mover side to be conducted into the gearbox.

In order to achieve this object distantly, the present invention mounts a prime mover 3 on the front upper part of the vehicle chassis 1, attaches a reaping device 8 to the front side of the prime mover 3 so as to be able to move up and down, and threshes grains on the side chassis of the prime mover. In the combine harvester on which the machine 5 is mounted, a crankshaft 4 is provided on the threshing machine side of the prime mover 3, and a counter gear box 12 is installed on the side of the prime mover on the crankshaft side for transmitting power to the threshing machine 5 or the reaping device 8, The crankshaft 4 and the input shaft 13 in the counter gear box 12 are interlocked and connected via a flywheel 14, and the lower part of the counter gear box 12 in the flywheel interposed part is cut out to form a flywheel. It is constructed in the shape of a counter gear box with the upper part of the wheel covered.

This invention will be described in detail based on an embodiment shown in the drawings. Reference numeral 1 denotes a chassis of a combine harvester, and a track device 2 is provided at the bottom thereof.

Reference numeral 3 denotes a prime mover, which is mounted on the front upper part of the left and right sides of the chassis 1 with the crankshaft 4 facing toward the other side, and drives each rotating part.

Reference numeral 5 denotes a threshing machine, which is mounted on the chassis on the side of the crankshaft 4 of the prime mover 3 so that the handling trunk axis is oriented in the front-rear direction and the culm supply port is located on the front side.

6 is a foot chain provided along the handling opening side, and 7 is its clamping rod.

Reference numeral 8 denotes a reaping device, which includes a cutting blade 9, a pulling device 10, a reaped husk feeding device 11, etc., and is mounted on the front part of the chassis 1 so as to be adjustable up and down. The stalk part is delivered to the foot chain 6 so that the tip part is stored in the culm supply port of the threshing machine 5.

Reference numeral 12 denotes a counter gear box that transmits power to the rotating parts of the threshing machine 5 and the rotating part of the reaping device 8, and its base side is fixed to the side surface where the crankshaft 4 of the prime mover 3 is located. The shape is an arc-shaped opening with an opening cut out on the lower side, and the outer part connected to this arc-shaped opening is a sealed gear box.

The crankshaft 4 and the input shaft 13 of the counter gear box 12 are connected via a flywheel 14, and the flywheel 14 is covered by the arc-shaped opening of the counter gear box 12. As a result, the lower side of the flywheel 14 is exposed.

15 and 16 are respective gears in the counter gear box 12, 17 is an output shaft, and 18 is an output pulley, which transmits power to the threshing machine 5 or the reaping device 8.

In the upper configuration, the prime mover 3 is started and each rotating part is
To drive, the input shaft 13 of the counter gear box 12 is rotated via the crankshaft 4 and the flywheel 14, and the speed is appropriately reduced via the gears in the gear box 12, and the output pulley 18 is rotated. ! Alternatively, each rotating part of the reaping device 8 is rotated, and reaping and threshing operations are performed.

During work, even if straw waste is generated in the reaping device or threshing unit and falls onto the counter gear box 12,
Since the crankshaft 4, flywheel 14, and input shaft 13 are covered by the arc-shaped opening of the gear box 12, falling straw debris does not get wrapped around these rotating parts. Since it is attached through the arcuate part cut out from the side, it is difficult for the heat of the motor 3 to be conducted to the gear box part C, which may cause the oil inside to become hot and accelerate deterioration, or cause oil to blow out from the seal part. Power can be accurately transmitted without any energy being generated.

Further, the counter gear box 12 does not have to be large enough to completely enclose the flywheel, and the structure can be simplified, and the crankshaft 4 and the input shaft 13 can be easily connected.

Since the present invention is constructed as described above, it is possible to easily connect the crankshaft to the input shaft of the counter gearbox via the flywheel, and to ensure accurate power transmission without getting straw or dust wrapped around these rotating parts. Moreover, the heat of the prime mover is difficult to be transmitted into the gear interior of the counter gear box, and the oil can be prevented from increasing in temperature.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a side view, Fig. 2 is a front view of main parts, and Fig. 3 is A-A in Fig. 2.
FIG. Symbols in the diagram: 1 is the chassis, 3 is the prime mover, 4 is the crankshaft, 5
1 is a threshing machine, 8 is a reaping device, 12 is a counter gear box, 13 is an input shaft, and 14 is a flywheel.

Claims (1)

[Claims] 1. In a cobine in which a prime mover is mounted on the front upper part of the vehicle chassis, a reaping device is attached to the front side of the prime mover so that it can be raised and lowered, and a threshing machine is placed on the chassis on the side of the prime mover, a crankshaft is attached to the threshing machine side of the prime mover. A counter gear box is installed on the side of the motor on the crankshaft side to transmit power to the threshing machine or reaping device, and the crankshaft and the input shaft into the counter gear box are interlocked and connected via a flywheel. A power take-off device for a prime mover in a combine harvester, which is provided as a counter gear box in which an upper part of the flywheel is covered by cutting out a lower part of the counter gear bearing of the flywheel interposed part.