JPS5817368Y2 - Reaping transmission device in combine harvester - Google Patents

Description

[Detailed description of the invention] This invention is used in a culm lifting device by incorporating a bevel gear so that power is sequentially transmitted from the input shaft of the reaping and conveying device to the culm lifting device and the reaping device in a combine harvester. In addition to reducing the number of bevel gears to be used, the power system of the reaping device is simplified by configuring the reaping device so that the reaping device can be directly driven by the cutting blade crank attached to the tip of the cutting blade drive shaft. The purpose is to

An embodiment of the present invention will be described in detail below with reference to the drawings. Reference numeral 1 denotes a combine machine stand, and on this machine stand 1 is a threshing device 2 on which a culm feed chain 3 is installed along the side. is mounted, and in front of it is a reaping device 4 in which a cutting blade sliding plate 6 is fixed to a cutting blade 5, and two upper and lower stages for conveying the culm cut by this reaping device 4 to the threshing device 2. A shell culm conveying device 7 is provided.

Reference numeral 9 denotes an input shaft of the reaping and conveying devices 4 and 7, which is mounted in the vicinity of the lower part of the culm supply port 8 of the threshing device 2 in a horizontal direction perpendicular to the direction of movement of the machine.

An input shaft bevel gear 10 is attached to this input shaft 9, and the drive shaft bevel gear has a larger diameter than the input shaft bevel gear 10 attached to the lifting drive shaft 12 that drives the culm lifting device 19, 19'. It is meshed with 11.

Therefore, the rotation of the input shaft 9 is decelerated and the rotation of the drive shaft 1 is reduced.
2 and the lifting bevel gears 13, 14, 15, 1
6, 17 and a transmission shaft 18 to drive the shell culm lifting devices 19, 19'.

21 is a cutting blade drive shaft, and the input shaft bevel gear 10 is attached to the upper end.
A mower blade drive shaft bevel gear 20 having the same diameter as the above is attached and meshed with the large diameter drive shaft bevel gear 11 described above, and a crank 22 is attached to the lower end to interlock it with the mower blade sliding plate 6. It's a shame.

In the figure, reference numerals 23 and 24 are worm gears for decelerating and transmitting the power from the input shaft 9 to the culm transport device 7, and 25 is a transport drive shaft.

Since the present invention has the above-mentioned configuration, when the engine is started, the power is drawn from the input shaft 9 and the drive shaft 12,
It is sequentially transmitted to the cutting blade drive shaft 21.

When the machine moves forward, the planted culms separated by the weed cutting body are moved by a pair of culm lifting devices 19 provided on the left and right,
After being harvested by the reaping device 4 without being raised by the culm 19', the culm feeding port 8 of the threshing device 2 is transported by the culm conveying device 7.
The grain is then transported to and threshed.

In the present invention, as described above, the three bevel gears, input shaft bevel gear 10, drive shaft bevel gear 11, and cutting blade drive shaft bevel gear 20, are combined to generate power from the input shaft 9 and to the drive shaft 12 and cutting blade drive shaft 21. Since the transmission path is configured so that the information is transmitted sequentially, these three input shaft bevel gears 10
, drive shaft bevel gear 11. The cutting blade drive shaft bevel gear 20 can simultaneously change the transmission direction and reduce the speed of the hoisting drive shaft 12, thereby reducing the power transmission from the hoisting drive shaft 12 to the culm hoisting device 19, 19'. The relaying lifting bevel gears 13, 14, 15, 16, and 17 are used only to change the direction of the power, and the number of required bevel gears is reduced.

That is, if deceleration is to be performed between the drive shaft 12 and the lifting device 19° 19', the lifting bevel gear 13.1
A reduction gear is required outside of 4, 15, 16, and 17, but
The present invention does not require this.

Even in the case of the reaping section with a housing, it is possible to simplify the reaping drive shaft 21 and the reaping blade 5 by interlocking the reaping drive shaft 21 and the reaping blade 5 with only the reaping blade crank 22 without interposing a rond or an arm.

In short, the present invention mounts the threshing device 2 on the machine stand 1 and arranges the reaping and conveying devices 4 and 7 in front of it, and the reaping and conveying devices 4 and 7 are located near the bottom of the culm supply port 8 of the threshing device 2. 70 A combine harvester in which an input shaft 9 is mounted horizontally in a direction perpendicular to the direction of movement of the machine body, and a plurality of culm pulling devices 19, 19' are installed obliquely from the front of the reaping device 4 toward the rear and upward direction. 3, the input shaft bevel gear 10 attached to the input shaft 9 and the large diameter drive shaft bevel gear 11 attached to the lifting drive shaft 12 are meshed to reduce the rotation of the drive shaft 12, and the lifting device 19 , 19', and the drive shaft bevel gear 11 and the input shaft bevel gear 10 attached to the cutting blade drive shaft 21 are meshed with the cutting blade drive shaft bevel gear 20 having the same diameter. The cutting blade crank 22 is attached to the end of the drive shaft 21 on the opposite side from where the bevel gear 20 is attached, so that the power system from the input shaft 9 to the culm pulling device 19, 19' and the reaping device 4 is extremely continuous. It is designed to be configurable.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the present invention, in which Fig. 1 is a side view of the combine harvester, Fig. 2 is a plan view thereof, and Fig. 3 is a side view of the combine harvester.
The figure is a vertical cross-sectional side view of the main part, FIG. 4 is a plan view of the main part, and FIG. 5 is a cross-sectional plan view of the main part. In the diagram, 1... combine harvester stand, 2...
Threshing device, 3...Feed chain, 4...
... Reaping device, 7... Culm conveying device, '8.
...Supply port, 9...Input shaft, 10...
... Input shaft bevel gear, 11 ... Drive, shaft bevel gear, 13, 14, 15, 16, 17 ... Curved lifting bevel gear, 12 ... ... Pulling drive shaft, 18 ...
...Transmission shaft, 19, 19'... Culm lifting device, 20... Cutting blade drive shaft bevel gear, 21.
...Mower blade drive shaft, 22...Crank, 2
3, 24... War gear, 25... Conveyance drive shaft.

Claims (1)

[Scope of utility model registration request] The threshing device 2 is mounted on the machine stand 1, and the reaping and conveying devices 4 and 7 are arranged in front of it, and the input shaft 9 of the reaping and conveying devices 4 and 7 is located near the bottom of the culm supply port 8 of the threshing device 2. In the combine harvester, a plurality of culm pulling devices 19, 19' are installed obliquely from the front of the reaping device 4 toward the rear and upper side. The input shaft bevel gear 10 attached to the input shaft 9 and the drive shaft bevel gear 11 having a larger diameter than the input shaft bevel gear 10 and attached to the driving shaft 12 are meshed together, and the driving shaft 12 is used to drive the lifting device 19.19'. The cutting blade drive shaft bevel gear 2 is attached to the cutting blade drive shaft 21 with the same diameter as the drive shaft bevel gear 11 and the input shaft bevel gear 10 while rotating the upper chain wheel.
0, and a cutting blade crank 22 is mounted on an end of the cutting blade drive shaft 21 opposite to the mounting portion of the bevel gear 20.