JPH0323059Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a manual forward/reverse device for a handling cylinder in a threshing machine.

(Prior Art) Conventionally, in a full-feed type axial flow combine harvester, a screw-type handling barrel is installed in the handling chamber of the threshing machine. The net frame can be removed depending on the barrel to be handled.

In the above-described threshing machine, if grains become clogged between the screen frame in the handling chamber and the handling barrel, it is necessary to remove the screen frame and remove the clogged material.

In order to remove clogged grains without removing the mesh frame, a worker must sit on top of the machine and rotate the handling cylinder, and in Japanese Utility Model Application Publication No. 59-64640, a starter motor is operated in reverse to remove clogged grain culms. It is arranged to be fed out at the end of the cutting conveyance section.

(Problem to be solved by the invention) The former method, in which a worker sits on top of the machine and rotates a handling torso in order to remove the clogged material without removing the mesh frame, is extremely dangerous.

Moreover, the latter one using a starter motor has a complicated structure and cannot be made into an inexpensive device.

(Means for solving the problem) Therefore, the technical problem of the present invention is to provide a threshing machine that can easily remove hard objects stuck between the net frame and the handling barrel. The technical means of the present invention to solve this technical problem is to use a forward/reverse flange that is composed of a circular plate section perpendicular to the handling cylinder axis and an annular wall that stands integrally from the periphery in the handling cylinder axis direction. It is provided at the tip of the inlet side of the barrel shaft, and has a hole in the annular wall of the flange through which a spanner can penetrate and engage.

(Example) First, a full-feed type axial flow combine shown in FIG. 3 will be explained.

The crops are raked by a raking reel 1 and harvested by a cutting blade 2, and the cut crops are transported from a raking auger 3 to a handling room 6 by a chain conveyor 5 in a feeder house 4, and then by a screw-type handling drum 7. Threshed.

The threshed grains fall from the receiving net 8 to the swinging sorting board 9, and are sorted by the blower fan 10 and the swinging sorting board 9. During this sorting process, grains and fine straw waste leak downward from the sorting plate, and only long straw is carried toward the dust outlet 11.

The spilled materials including grains that have fallen from the sorting board are subjected to sorting air by a blower fan 12 such as a winnowing machine, and the grains fall into the first gutter 13 and the second grains fall into the second gutter 14. The grains that fell onto the grain frying conveyor 1
5, the paddy is transported to a tank 16, and the second paddy is returned to the swing sorting board 9 via a thrower cylinder 20.

17 is a crawler equipped with a thresher, 18 indicates a control section.

Further, the discharge culm portion of the handling chamber is composed of a discharge vane 19 at the rear end of the handling cylinder and a casing 6a.

By the way, in a handling room equipped with a screw-type handling cylinder as described above, crops sometimes become tightly packed between the receiving net 8 and the handling cylinder 7, as shown in FIG. 5A. In such a case, the present invention allows the blockage to be easily removed.

That is, as shown in FIGS. 1 and 2, a flange 22 for forward and reverse rotation is provided at the tip of the shaft of the handling cylinder 7 on the inlet side, and a spanner 23 that engages with this flange 22 rotates the handling cylinder 7 in the forward and reverse directions.

The flange 22 is made up of a disk portion perpendicular to the handling barrel axis 21 and an annular wall parallel to the handling barrel axis 21 that integrally stands up from the periphery of the disc portion.

In FIG. 1, 6b is the side plate of the handling chamber 6, and 2
4 is a bearing of the handling shaft 21 provided on this side plate 6b. The flange has a dish shape from the above-described shape, and has engagement holes 25, 25 for inserting the spanner 23 passing through the annular wall 22a. A stopper 23a that engages with the side wall 22a is provided on the bar body of the spanner 23 to prevent the inserted spanner 23 from slipping down.

The illustrated spanner 23 has a grip 23b,
The bar body further has bolt/nut engagement holes 23c, 2.
There is 3d.

Therefore, the spanner 23 is used not only for forward and reverse rotation of the handling cylinder, but also for tightening bolts and nuts as an ordinary spanner. In addition, engagement hole 2
5 and 25 are open not only at the top and bottom but also at the left and right.

A safety cover 26 is pivoted 27 to a receiving plate 28 protruding from the side plate 6b, and normally covers the flange 22 as shown by the imaginary line in FIG.

In any case, rotate the safety cover 26 as shown by the solid line in FIG. It can be rotated forward and backward, allowing you to remove clogged objects.

In addition, in the chain conveyor 5 of the feeder house 4 in a conventional combine harvester, the slats 5a are bent at right angles as shown in FIG.

If the slats are at right angles like this, the impeller 7
The crop cannot be released toward the outer periphery of the cone part 7b, and it is easy to wrap it around the cone part 7b.

Therefore, it is preferable to make the inclination angle of the slat 5a an obtuse angle as shown in FIG. By making the angle of inclination of the slat 5a obtuse, the crop is discharged toward the outer periphery of the impeller 7a, that is, toward the bottom plate 29 of the inlet side plate, so that there is no need to wrap the crop around the cone portion 7b.

Since long culms (rice), mixed materials, etc. are particularly easy to wrap around, it is desirable to discharge them along the bottom plate 29 of the entrance side plate.

(Effect of the invention) According to this technical means, the blockage can be removed by inserting a spanner into the hole in the annular wall of the flange and moving the handling cylinder forward or backward.
Since there is a flange on the inlet side of the handling barrel shaft, the work can be done more easily than from the driver's seat, which not only reduces cleaning time but also makes it safer. The spanner can also be removed and stored from the driver's seat.

However, since the flange is composed of a disc part perpendicular to the handling cylinder axis and an annular wall that stands integrally from the periphery in the direction of the handling cylinder axis, it is strengthened and provided between the handling chamber and the handling cylinder. It can withstand the force of turning a handling drum that is filled with crops and has a lot of resistance, and since the spanner is inserted into a ring-shaped wall that stands up integrally in the direction of the handling drum axis, it is not only easy to insert, but also easy to rotate. It is easy to turn and the spanner only needs to be inserted into the flange when necessary, so there is no need to insert the spanner into the flange all the time.

[Brief explanation of the drawing]

Fig. 1 is a cutaway front view of the proposed device, Fig. 2 is a side view of the same, Fig. 3 is a front view of the full-feed type axial flow combine, Figs. 4 and 5 are a plan view and cross-sectional view of the same, and Fig. 6
Figures A and B are cross-sectional views and partial views of the feeder house portion, and Figures 7A and B are 6th diagrams of different embodiments.
FIG. 2 is a cross-sectional view and a partial view similar to the figure. 1... Scraping reel, 2... Cutting blade, 3... Auger, 4... Feeder house, 5... Chain conveyor, 6... Handling room, 7... Handling barrel, 21... Handling barrel shaft, 22...Flange, 23...Spanner, 2
5, 25...Engagement hole, 26...Safety cover.

Claims (1)

[Scope of utility model registration request] A forward/reverse rotation flange is provided at the tip of the inlet side of the handling cylinder shaft, and is composed of a disk portion perpendicular to the handling cylinder axis and an annular wall that stands integrally from the periphery in the handling cylinder axis direction, and the annular wall of the flange A manual forward/reverse device for a handling barrel in a threshing machine, which has a hole through which a spanner can be engaged.