JPS5927717Y2 - Reaped grain culm conveying and feeding device in combine harvester - Google Patents

Description

[Detailed description of the invention] The present invention is a vertical conveyance device that grasps the middle part of the stem of a culm that has been cut in an upright position, and conveys the culm backward and diagonally upward while gradually changing the posture of the conveyed culm to a horizontal position. The inclined clamping rail part corresponding to the lifting and transporting part of the threshing feed chain, which extends obliquely downward toward the conveyance end of the threshing section, can be vertically swung to the threshing part clamping rail, which is positioned horizontally or almost horizontally. The present invention relates to a reaped husk conveying and feeding device for a combine harvester, which is pivotally mounted and swings and urges the inclined clamping rail portion in a direction approaching the lifting conveying portion.

In the conventional reaped husk culm conveying and feeding device for this type of combine harvester, the end edge of the slanted clamping rail portion in the conveying direction was formed in a straight line. Due to the swinging, the attitude and position of the end edge in the conveying direction relative to the clamping rail changes, and therefore, when the conveying shell culm is transferred from the inclined clamping rail portion to the clamping rail side, the button and the button may become caught or clogged. was there.

In view of these points, the present invention has been developed by a simple structural improvement that consists of devising the shape of the end edge of the inclined clamping rail portion in the conveying direction, so that the culm can be smoothly and reliably handled without getting caught or clogged. Another purpose is to ensure that the culm can be transferred from the inclined clamping rail section to the clamping rail.

Next, an embodiment of the present invention will be described based on the drawings. In the drawing, A is a pre-reaping section equipped with a weeding tool 4, a pulling device 5, and a reaping device 6. The structure is such that the culm is divided and raised into an almost upright position, and then the base of the plant is cut off.

1B, a chain 1a and a rail 1b for holding and conveying, and
This is a vertical conveyance device equipped with a guide rod 1c, which holds the middle part of the stem of a culm that has been cut in an upright position between a chain 1a and a rail 1b, and conveys it rearward and diagonally upward while moving it along the rail 1b. The structure is such that the conveying shell culm is gradually changed to a sideways posture by the sideward insertion action of the protruding piece a projecting above the chain 1a and the guide rod 1c.

2 is a threshing feed chain which, in cooperation with the threshing section clamping rail 3 which is located opposite along the upper side and has a slightly forward downward slope in an almost horizontal position, clamps the shell culm in a sideways position and conveys it rearward. There is a lifting conveyance action portion 2 whose conveyance start end portion extends obliquely downward toward the conveyance end portion of the vertical conveyance device 1 and overlaps with the conveyance end portion of the vertical conveyance device 1 in the conveyance direction. An inclined clamping rail portion 3A, which is formed in the shape of a person and adapted to accommodate two people, is pivotally connected to the starting end of the clamping rail 3 so as to be able to swing up and down. The structure is such that the shell culm in the horizontal position is received from the vertical conveyance device 1 and conveyed by being biased to swing in the direction approaching the plate spring 3B.

B, a threshing section that performs a threshing action on the husk in a sideways posture being transported by the feed chain 2; 7, a threshing section that places the tip side of the vertically conveyed husk relative to the clamping point; At the entrance of B, 1 is a sliding guide plate, 8 is a crawler type traveling device, 9 is a driver's seat, and 10 is a grain bagging device.

Then, the terminal edge 3a in the conveying direction of the inclined clamping rail portion 3A
is formed into an arc shape centered on the swing axis R, or a shape close to this, and a space between the end edge 3a in the conveyance direction and the straight edge 3c on the upper side of the conveyance direction is opposite to the end edge 3a in the conveyance direction. They are connected via an arc-shaped edge 3b that projects in the direction.

3d in the figure is a stopper that comes into contact with the starting end of the clamping rail 3 to restrict the swinging of the inclined clamping rail portion 3A beyond a predetermined range.

As described in detail above, the cut husk conveying and feeding device for a combine harvester according to the present invention has the following features in the above-mentioned explanation:
The terminal edge 3a in the conveyance direction of the inclined clamping rail portion 3A is formed into an arc shape centered on the swing axis R or a shape close to this, and the terminal edge 3a in the conveyance direction and the linear edge 3c on the upper side of the conveyance are formed. The slanted clamping rail portion 3A is connected through an arcuate edge 3b protruding in the direction opposite to the conveyance direction terminal edge 3a.
Regardless of the rocking displacement within a predetermined range, the attitude button and position of the end edge 3a in the transport direction of the rail portion 3A with respect to the clamping rail 3 can be maintained almost constant, and the gently curved surface of the arc-shaped edge 3b In conjunction with the structure, the grain culm clamping and conveying action from the inclined clamping rail portion 3A to the clamping rail 3 can be made constant at all times, and the vertical conveying device 1 button and the grain culm are not caught or jammed. feed chain 2
As a result, the conveying and supplying of the cut husk can be carried out smoothly and reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the reaped husk conveying and feeding device in a combine harvester according to the present invention, and FIG. 1 is a plan view of the combine harvester;
Figure 2 is a side view of the main part, Figure 3 is an enlarged partially cutaway side view of the main part, Figure 4 is a sectional view taken along line IV-IV in Figure 3, and Figure 5 is an enlarged view of the main part. FIG. 1... Vertical conveyance device, 2... Threshing feed chain, 2 people... Lifting and conveying action part, 3
...... Threshing section clamping rail, 3A... Slanted clamping rail portion, 3a... End edge in the conveyance direction, 3
b... Arc-shaped edge protruding in the opposite direction, 3c...
... Straight edge on the upper side of the conveyor, R ... Swing axis center.

Claims (1)

[Scope of utility model registration request] The vertical conveying device 1 grips the middle part of the stem of the cut culm in a vertical position and conveys it backward and diagonally upward, while gradually changing the posture of the conveyed culm to a sideways position. The lifting and conveying action portion of the threshing feed chain 2 extended to
Threshing section clamping rail 3 positioned horizontally or almost horizontally
This inclined clamping rail portion 3A
toward the reaped husk conveying and supplying device which is biased to swing in the direction close to the lifting and conveying action portion 2A, and the end edge 3a of the inclined clamping rail portion 3A in the conveying direction is centered around the pivot axis R. The terminal edge 3a in the conveyance direction and the linear edge 3 on the upper side of the conveyance are formed into an arc shape or a shape close to this.
A reaped husk transport and supply device for use with a combine harvester, characterized in that the reaped husk transport and supply device is connected to the reaped husk culm (c) via an arcuate edge 3b that projects in a direction opposite to the terminal end edge 3a in the transport direction.