JPH0317632Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for supplying waste straw to waste straw processing equipment such as a converging machine or a binding machine in a combine harvester.

[Prior Art and its Problems] A converging machine or a tying machine is often mounted further behind the cutter at the rear of the combine machine. Therefore, the straw is supplied to these via the straw guide surface provided above the cutter.

For example, as a conventional technique, a horizontal guide surface is provided above the cutter and a horizontally provided conveyor belt is operated from above, as seen in Japanese Utility Model Application No. 51-118471, although no converging device is installed. It has been known.

However, the above conventional technology has the following problems.

(a) Since the straw conveyance surface is horizontal, there is a risk that some of the straw that is not acted upon by the conveyor belt acting from above may remain on the straw conveyance surface. Furthermore, in order to install a conveyor belt, it is necessary to install it horizontally as well as the conveyor surface, and the space for the belt to act can only be secured to the same extent as the length of the front and rear of the cutter, so that the conveyor belt cannot act sufficiently. I can't.

(b) In order to rotate the conveyor belt upward from a position substantially parallel to the conveyance surface to a non-operating state, it is necessary to lift it to a considerable height, which is a complicated operation.

[Means for solving the problem] In order to solve the above-mentioned problems, the present invention extends the straw removal chain to above the straw cutter installed at the rear of the machine, and also installs a concentrator or tying machine behind the straw cutter. In the combine harvester, a shutter is installed in the supply drop opening formed at the upper front part of the straw cutter so as to be openable and closable, and the upper rear part of the straw cutter, which is behind the supply drop opening, is The straw removal surface is inclined so that the straw removal surface is lowered, and a straw removal conveyance body that is rotatably driven and acts on the removal straw from above is arranged above the straw removal surface and approximately parallel to the straw removal surface. The rotation is interlocked so that the conveyor stops rotating when it is placed in a non-parallel state with respect to the straw conveying surface.

[effect] The present invention has the following effects.

(a) Since the straw conveyance surface is sloped so that the rear side is lower, the straw supplied to the collecting machine/binding machine tends to slide down due to its own weight, and the straw conveyance is Since the body works for a long enough time, leakage and clogging are less likely to occur.

(b) If a blockage occurs while being transported by the straw removal conveyor, the straw will push the conveyor up and the conveyor, which stops rotating, will not be forced to rotate, thereby preventing problems such as damage to various parts. can be prevented.

(c) In particular, the straw removal conveyance surface is tilted so that the rear side is lower, and the straw removal conveyance body is rotated upward, so if the rotation of the conveyance body stops due to a blockage etc. as described above. However, the waste straw can be sent out by its own weight along the slope of the conveying surface without being held back by the conveying body.

Therefore, the waste straw does not accumulate below the conveyor, so that clogging can be easily cleared.

[Example] Next, an example shown in the drawings will be described. Figure 1 shows a side view of the combine harvester, which has a threshing section D mounted above the machine stand 7 supported by crawlers 6, and a reaping section C installed in front of the threshing section D, similar to the conventional structure. do.

A straw cutter A is installed inside a cutter housing a connected to the rear rear of the threshing section D, and is constructed by fitting two parallel shafts 8a and 8b with a large number of disc blades 9a and 9b, respectively. A supply drop port 2 is formed in the upper front part of the cutter A, and the supply drop port 2
Above the straw cutter A which is further rearward, a straw removal conveying surface 4 is provided which is inclined so that the rear side is lower. 11, 11, and extends rearward so that the straw removal chain 1 approaching the end of the feed chain 12 in the threshing section D is inclined in plane, and also wraps around the end of the straw removal chain 1. The ring 13 is installed so as to go beyond the supply drop port 2 and be located above the front side of the straw conveyance surface 4, and a known concentrator B or a binding device is installed behind the cutter casing a. Set and configure.

A straw removal belt 5 with protrusions 5a is extended from the terminal end of the straw removal chain 1 onto the straw removal surface 4 toward the upper side of the collection machine B.
A drive wheel 15 rotated by 4 and the other idler wheel 1
A support metal 18 is fixed to the tip of a stay 17 which is pivoted so as to be able to rotate around the shaft 14, and a support metal 18 is attached to the support metal 18. A support arm 19 is slidably inserted into the stay 17, and an intermediate portion of an actuation lever 20 is pivotally supported via a pin 21 on the side surface of the stay 17 near the support metal 18, so that the actuation lever 20 rotates and one end thereof When the user pushes the end of the support arm 19, the straw removal belt 5 is tensioned and rotated by the idler wheel 13.

Further, a support frame body 2 that supports the straw removal chain 1 is provided.
A support shaft 23 is provided to protrude laterally from the side near the terminal end of the link 2, and a boss 25 fixed to one end of the somewhat long link 24 is rotatably fitted to the tip of the support shaft 23. One end of an interlocking rod 27 extending above the shutter 3 along its longitudinal direction is fitted and fixed to the tip of the arm 26 protruding toward the opposite side. A pin 28 protruding from the offset portion is rotatably fitted and connected to the lower part of the vertical link 29, and the other end of the interlocking rod 27 is rotatably fitted to the upper part of the link 29. A tension spring 3 is connected between the tip of the link 24 and the other end of the operating lever 20.
The link 24 is installed so that the idler wheel 16 can be moved beyond the fulcrum in the axial direction of the shaft 14 as the straw removal conveying belt 5 moves up and down.

In addition, in the figure, 31 indicates waste straw.

Therefore, as shown in FIG. 3, when the straw removal belt 5 rotates upward about the shaft 14 and moves upward, the link 24 moves upward beyond the fulcrum and the tension spring 30 becomes loose, and the operating lever 20 cannot push the support arm 19, and the idler wheel 16 moves, and the straw conveyor belt 5 loosens and stops rotating, and the link 29 is pushed downward, causing the shutter to move. 3 is tilted downward and opened, and during work, the waste straw 31 conveyed by the straw removal chain 1 flows down on the shutter 3 and is supplied from the supply drop port 2 to the straw cutter A to be cut. .

In addition, as shown in FIG.
When the link 24 is lowered down about the shaft 14 onto the straw conveying surface 4, the link 24 moves downward past the fulcrum and the actuating lever 2 is pulled downward by the tension of the tension spring 30.
0, while pushing the support arm 19, move the idler wheel 1.
6, the straw removal chain is tensioned and the straw removal conveyor belt 5 is rotated, and the link 29 is raised and the shutter 3 is rotated to close the supply drop port 2. The waste straw 31 conveyed by the straw removal belt 1 flows from above the shutter 3 onto the waste straw conveyance surface 4, and is conveyed to the collection machine B by the waste straw conveyance belt 5.

In this way, the straw collecting machine B is
If a problem occurs and the waste straw 31 becomes clogged while being transported to the waste straw, the waste straw 3 accumulates on the waste straw conveying surface 4.
1, the straw conveyor belt 5 is pushed upward, and as shown in FIG. will be sent to the straw cutter A side.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the combine, Fig. 2 is a plan view of the main parts, Fig. 3 is a side view of the main parts which is a part of Fig. 2, and Fig. 4. is the third
FIG. A... Straw cutter, 1... Straw removal chain, B...
Concentrator, 2... Supply drop port, 3... Shutter,
4... Straw removal conveyance surface, 5... Straw removal conveyance body.

Claims (1)

[Scope of utility model registration request] In a combine harvester in which a straw removal chain is installed above a straw cutter installed at the rear of the machine, and a concentrator or a tying machine is connected to the rear side of the straw cutter, the straw cutter is formed at the front above the straw cutter. A shutter is installed at the supply drop port so that it can be opened and closed, and the upper rear part of the straw cutter, which is behind the supply drop port, is formed into a straw removal surface that is sloped so that the rear side is lower. Above this, a straw removal conveyor which is rotationally driven and acts on the straw removal from above is arranged approximately parallel to this, and this straw removal conveyance is rotated upward to a non-parallel state with respect to the straw removal conveyance surface. A supply device for a waste straw processing device in a combine harvester, characterized in that the rotation is interlocked to stop.