JPH0444036Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a conveying device for a DC type combine harvester.

(Prior art) In a direct current combine harvester that supplies harvested crops to a threshing section through a chain conveyor in a feeder house, feeder slats provided at regular intervals on the chain conveyor are driven to rotate in synchronization with the screw pitch of a handling barrel. A device having such a configuration is known from Japanese Utility Model Application Publication No. 12342/1983.

(Problems to be solved by the invention) According to the above, the crops conveyed by the chain conveyor of the feeder house are discharged between the screw pitches of the handling cylinders, and it is difficult to take them into the threshing section. will improve.

However, it has the following drawbacks.

In other words, the chain conveyor that is attached to the feeder house of a DC combine harvester has slats on its conveying surface in order to smoothly send the crop collected in the center of the machine by the raking auger of the reaping section to the threshing section. Irregularities are formed by multiple notches and protrusions.

However, in DC combine harvesters that have a screw-type handling barrel built into the machine's direction of travel, the handling barrel rotates at right angles to the direction of travel, so at the end of the slat conveyor, the direction of conveyance of the crop is changed by 90°, that is, the slat It is taken into the screw handling cylinder while changing its direction in the longitudinal direction.

At this time, rotation and stagnation due to the slats occur, resulting in an inconvenience.

(Means for solving the problem) Therefore, the technical problem of this project is to create a combine harvester that can smoothly transfer the feeder house from the chain conveyor to the screw rotor. The technical means of the present invention to solve the technical problem is to use a combine harvester configured to feed harvested crops to a screw-shaped handling barrel by a chain conveyor in a feeder house.
The crop surfaces of the feeder slats, which serve as crop transfer bodies, are provided at regular intervals on the chain conveyor in the feeder house, and the crop surfaces are formed into uneven surfaces.
This conveying device for a DC combine harvester is characterized in that, of the two inclined surfaces, the upper side in the direction of rotation of the screw-shaped handling barrel is configured to have a gentler slope.

(Example) Hereinafter, an explanation will be given based on an example shown in the drawings.

First, the entire DC type combine harvester will be explained.

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

The threshed grains fall from the receiving net 8 onto the oscillating sorting board 9 and are sorted.

The threshed grains are sorted on this swing sorting board 9, but only the long straw is carried toward the rear straw outlet.
In addition, the materials to be sorted on the swing sorting board 9 are sorted by receiving the sorting air from the winnowing machine 11 or the sorting air from the blower fan 12.
The grains that have fallen into the first gutter 13 are conveyed to a paddy tank (not shown) through a lifting tube 15, and the second grains are conveyed to a swing sorting board 9 through a return tube 16. The straw from the handling room 6 is discharged to the discharge port 6 by the discharge blade 7a.
It is discharged to the outside from a. 17 is a crawler equipped with a threshing machine, 18 is a feeder house elevating cylinder, 19 is a divider, and 20 is a driver's seat.

In addition, the cone portion 7b of the illustrated screw-type handling cylinder 7
A double pitch screw 21 is formed on the
This is connected to the screw 22 of the handling cylinder.
There is a dust feeding valve 24 operated by a handle 23 on the inner surface of the upper part of the handling chamber. Others 25 are sleds formed below the platform, and three sleds are provided in the width direction.

By the way, on the working surface of the conveyor 5 suspended over the feeder house 4 of the combine harvester as described above, there is a slat 5a formed with irregularities consisting of a plurality of notches and protrusions.

In the present invention, among the two front and rear surfaces of the convex portion of the uneven surface of the slat 5a, the upper side in the rotational direction of the handling cylinder, that is, the rotor, is configured to have a gentle slope.

Figures 1B and 1C have protrusions forming uneven surfaces, and of the two front and rear surfaces 26a and 26b, the slope 26a on the upper side in the rotational direction of the rotor is formed gently.

2(b) and 2(c) have an uneven cut surface formed thereon, and among the two front and rear surfaces 26a, 26b, the inclined surface 26a is formed gently.

(Effect of the invention) According to this technical means, when the platform auger and the feeder house are transferred, slippage is prevented by the protrusions and notches of the slats, and the transfer is performed reliably. At the end of the feeder house conveyance, where it joins the handling cylinder, the slope of the gripping part in the direction of rotation of the handling cylinder is gentle, making it easy for crops to come off and prevent clogging.

[Brief explanation of drawings]

Figure 1 A, B, C and Figure 2 A, B, C are explanatory diagrams of the main project, Figure 3 is a partial plan view of the combine harvester, Figure 4
The figure is a front view of the combine harvester. 1... Scraping reel, 2... Cutting blade, 3... Scraping auger, 4... Feeder house, 5... Chain conveyor, 6... Handling room, 7... Screw type handling cylinder, 5a... Slut, 26a...slope surface.

Claims (1)

[Scope of utility model registration request] In a combine harvester configured to feed harvested crops to a screw-shaped handling barrel by a chain conveyor in a feeder house, the action of feeder slats as crop transport bodies provided at regular intervals on the chain conveyor in the feeder house. A conveying device for a DC type combine harvester, characterized in that the surface is formed into an uneven surface, and of the two sloped surfaces of the convex portion, the upper side in the rotational direction of the screw-shaped handling cylinder is configured to have a gentler slope.