JPH0445480Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a device for removing residue from the second reducing port of a sliding sorting section in a threshing device mounted on a combine harvester or the like.

(b) Prior art Conventionally, in combine harvesters, the angle of the fins of the stroke rack at the most sorting part of the sliding sorting device was
Techniques for adjusting manually or in conjunction with other operating levers or sensors are known. For example, Utility Model Application Publication No. 59-178043,
This technique is similar to the techniques described in Japanese Utility Model Publication No. 59-186040 and Japanese Utility Model Application Publication No. 59-141739.

Furthermore, a technique for adjusting the angle of the fins of the stroke rack in the second sorting section is known as the technique described in Japanese Utility Model Application Laid-Open No. 58-7535.

(c) Problems to be solved by the invention As mentioned above, especially in those with large threshing devices such as ordinary combine harvesters, if the threshing input is turned off after the grain culm that enters the handling barrel is exhausted, Because the handling drum does not stop immediately and its rotation gradually decreases, the No. 2 reduced material continues to fall from the stroke rack, and the No. 2 reduced material that has fallen onto the No. 2 conveyor is not discharged but is instead deposited onto the fins or sorting net. This caused build-up and caused blockages.

(d) Means for solving the problem The present invention is constructed as follows in order to solve the above-mentioned drawbacks.

The angle of the fins 17a of the stroke rack 17 provided at the rear of the sliding sorting device 9 can be changed by a motor 37, and a grain culm sensor is installed at the inlet of the handling barrel 10 to detect when the grain has reached the inlet of the handling barrel. sensor 2
A grain culm detection sensor 28 is disposed at the discharge portion of the handling cylinder 10 to detect when grain culm no longer exists in the handling cylinder. The fin 17a
can change the angle of the fins 17a, 17a, .
Close the interval between... and convey the second conveyor 2 of the second reduced product.
This prevents it from falling to 1.

(E) Embodiment The purpose of the present invention is as described above, and the structure of the embodiment shown in the attached drawings will be explained.

FIG. 1 is a side sectional view of a conventional combine harvester equipped with the residual removal device of the present invention. FIG. 2 is a side sectional view of the sorting section. FIG. 3 is a rear sectional view of the handling cylinder discharge section. FIG. 4 is a side view showing a configuration for changing the angle of the fins. FIG. 5 is an electrical circuit diagram for changing the angle of the fins.

To explain the overall configuration from FIG. 1, a threshing device 8 and a sorting device 9 are mounted on a crawler-type traveling device 7, and a reaping and conveying device is protruded in front of the threshing device 8 and sorting device 9. Grain culms are scraped into a reaping device by tines 2 provided at the tip of a reel 1, and the base of the grain is harvested by a cutting blade 3. The cut grain culms are collected in the center by a transverse feed auger 4, and the entire grain culm is sent to a threshing room 8 by a conveyance chain 5. 6 is a hydraulic cylinder for raising the reaping and conveying device.

The threshing device 8 threshes the grain while sending it rearward with a screw-shaped handling cylinder 10, and the threshed empty culm is discharged from the rear discharge port 11. A grain culm detection sensor 27 is provided at the inlet portion of the handling barrel 10, and a grain culm detection sensor 28 is provided at the discharge portion.

The sorting device 9 will be explained with reference to FIGS. 1 and 2.

The rice grains and straw waste that have passed through the crimp net 12 and have fallen are first separated by a fan 13 to remove light dust, dirt, etc., and then fall onto a sliding sorting device. The sliding sorting device has a chaff sheave 16, a stroke rack 17, and a sorting net 1.
It is composed of 8 etc., and its front end is slid by a crank motion. The paddy and straw waste that leaked out after the sliding sorting are air-sorted into grains and straw-mixed grains by air blowing by a sorting fan 14. The grains fall from the grain flow board 24 and first onto the conveyor 20, where they are transported to the grain tank or outside the machine. Straw mixed grains are straw rack 1
7, is further screened by a fan 15, and falls onto the second conveyor 21. From the second conveyor 21, the grains are returned to the handling cylinder by the second frying conveyor 22.

The chaff sheave 16 and the stroke rack 17 are made of elongated fins 16a, 16a..., 17a, 1.
7a... are arranged at an angle perpendicular to the handling cylinder, and the intervals between them can be changed, and the angle of inclination of the fins of the chaff sheave 16 can be changed by manually pulling the wire 26 from the outside. The fins of the stroke rack 17 detect grains using a sensor, and the angle of inclination is changed using a motor in accordance with the signal.

That is, as shown in FIG. 4, the fins 17a, 17a, . and is pivotally supported by a connecting rod 31. Then, the link 32 is fixed to one of the upper pins, and when the link 32 is rotated, all the fins 1
7a... are configured to rotate in the same way. A pin 33 is fixed to the lower end of the link 32, and a wire 34 is fixed thereto. Wire 34 is connected to pulley 35,3
The pulley 36 is freely rotatable, and the pulley 35 is supported by the rotating shaft of a motor 37.

In addition, a motor 37 and a grain culm detection sensor 2
7, 28, a switch 39 which is turned on when the reaping clutch is "on" is connected to the controller 38 as shown in FIG.
It is controlled by 8.

(f) Effects With the above configuration, the present invention has the following effects.

That is, when the reaping clutch is engaged and the working state is set, the switch 39 is turned ON, and the grain culm detection sensor 2 is activated.
When the signals from 7 and 28 are accepted and the grain culm reaches the inlet of the handling barrel, the grain culm detection sensor 27 is activated, and the motor 37 is rotated by its output (amount of grain culm).
The link 32 rotates in the 32' direction to widen the distance between the fins.

Then, when the reaping is finished, that is, even if the grain culm is no longer detected by the grain culm detection sensor 27, if the grain culm is detected by the grain culm detection sensor 28,
The grain culm is handled inside the handling barrel, and the spacing between the fins is the same as in the working state, but if the grain culm is no longer detected by both the grain culm detection sensors 27 and 28, the grain culm is inside the handling barrel. This means that the motor 37 is rotated in the opposite direction, the gap between the fins is closed, the second reduction product no longer falls, and the blockage of the second reduction product can be eliminated.

(g) Effects of the invention With the above-described configuration and operation, the present invention provides the following effects.

First, the amount of grain culm in the handling barrel is sensed by the grain culm sensing sensor 27 at the entrance to the handling drum 10 and the grain culm sensing sensor 28 at the exit from the handling drum 10, and the amount of grain culm is detected. Sorting performance was improved by changing the angle of the fins accordingly.

Second, when there are no grain culms in the handling barrel, the fins 17a, 17a, etc. of the stroke rack 17 close, so the No. 2 reduced product does not fall onto the No. 2 conveyor 21.
The No. 2 reduced product generated in the No. 2 conveyor 21 portion and accumulated therein was discharged without being circulated, and the clogging was eliminated.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional view of an ordinary combine harvester equipped with the residual removal device of the present invention. FIG. 2 is a side sectional view of the sorting section. FIG. 3 is a rear sectional view of the handling cylinder discharge section. FIG. 4 is a side view showing a configuration for changing the angle of the fins. FIG. 5 is an electrical circuit diagram for changing the angle of the fins. 9... Sliding sorting device, 10... Handling cylinder, 17...
Strollack, 17a... Finn, 27, 28
...Grain culm detection sensor, 32...Link, 34...
...Wire, 37...Motor.

Claims (1)

[Scope of utility model registration request] The angle of the fins 17a of the stroke rack 17 provided at the rear of the sliding sorting device 9 can be changed by a motor 37, and a grain culm sensor is installed at the inlet of the handling barrel 10 to detect when the grain has reached the inlet of the handling barrel. sensor 2
A grain culm detection sensor 28 is disposed at the discharge portion of the handling cylinder 10 to detect when grain culm no longer exists in the handling cylinder. The fin 17a
can change the angle of the fins 17a, 17a, .
Close the interval between... and convey the second conveyor 2 of the second reduced product.
1. A stroke rack for a threshing device, which is characterized by preventing the product from falling into the ground.