JPH0212838Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is a self-propelled, self-extracting combine harvester.
The present invention relates to a three-dimensional discharge device that discharges waste straw bundles in an upright manner onto the field with the stem facing down, when the waste straw after harvesting and threshing is tied in appropriate amounts and released into the field.

[Conventional technology]

Generally, this type of bundled waste straw three-dimensional discharge device is
At the rear of the combine main body, there is a three-dimensional transport mechanism consisting of an endless transport body wrapped around pulleys at both ends of the frame, and a clamping rod attached to the endless transport body.
The three-dimensional transport mechanism is arranged such that its starting end extends into the straw bundle release section of the bundling mechanism attached to the combine main body, and its terminal end is located at the rear.

In this case, in the conventional three-dimensional discharge device, power transmission from the combine main body to the three-dimensional conveyance mechanism is carried out at the starting end of the pulleys at both ends of the frame, as described in, for example, Japanese Utility Model Application Publication No. 54-39352. There are two methods: one is to perform this on the starting end pulley, and the other is to perform this on the end pulley at the end of the pulleys at both ends of the frame, as described in, for example, Japanese Utility Model Application Publication No. 56-45235.

[The problem that the idea aims to solve]

However, while the former method has the advantage of being able to shorten the length of the power transmission shaft from the combine main body to the driving start end pulley, the power transmission shaft and the bearing for the power transmission shaft are By approaching the transfer point of the waste straw bundle to the conveyance mechanism, the waste straw bundle being transferred comes into contact with the power transmission shaft or the bearing for the power transmission shaft. Not only is there a risk of clogging, but the posture of the straw bundle may change unexpectedly, reducing the probability that it will stand up in relation to the field. Since the power transmission shaft to the terminal pulley and the bearing for the power transmission shaft are moved away from the transfer point of the waste straw bundle from the bundling mechanism to the three-dimensional conveyance mechanism, clogging of the waste straw bundle at the transfer point and the posture of the waste straw bundle can be avoided. Although there is no change, the length of the power transmission shaft and its bearing becomes extremely long, resulting in an increase in size, weight, and price.

The object of the present invention is to provide a three-dimensional emitting device that solves these problems.

[Means to solve the problem]

In order to achieve this objective, the present invention has developed a three-dimensional transport mechanism that is attached to the rear of the combine main body, and consists of an endless transport body wrapped around pulleys at both ends of the frame, and a clamping rod attached to the upper surface of the endless transport body. The starting end of the three-dimensional conveyance mechanism is directed to the straw bundle discharge part of the bundling mechanism attached to the combine main body,
In the three-dimensional discharge device for straw bundles arranged so that the terminal end is located at the rear, a drive pulley for the endless conveyance body is provided on a lower surface of the frame of the three-dimensional conveyance mechanism in a portion close to the start-end side pulley. A power transmission shaft protruding from the combine main body side is connected to the drive pulley.

[Functions and effects of the idea]

In this way, if a drive pulley for the endless conveyance body is provided on the lower surface of the frame in the three-dimensional conveyance mechanism, and a power transmission shaft protruding from the combine body side is connected to the drive pulley, the power transmission shaft and the bearing for the power transmission shaft is spaced downward from the transfer point of the waste straw bundle from the bundling mechanism to the three-dimensional conveyance mechanism, so that the waste straw bundle being transferred does not come into contact with this power transmission shaft or its bearing. Therefore, it is possible to avoid clogging of the straw bundles and changes in the posture of the straw bundles.

In addition, by providing the driving pulley on the lower surface of the frame in the three-dimensional conveyance mechanism near the starting end pulley, the distance from the combine main body to the driving pulley is shortened.
The length of the power transmission shaft from the combine main body to the drive pulley can be shortened.

Therefore, according to the present invention, it is possible to provide a compact, lightweight, and inexpensive three-dimensional discharge device that reduces clogging of straw bundles and increases the probability that the device will stand up against the field.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. In the drawing, reference numeral 1 indicates a conventionally known self-propelled, self-extracting combine harvester main body, and a cover case 2 provided at the rear thereof includes a feed chain. (not shown)
A conventionally known bundling mechanism 5 is provided for tying appropriate amounts of waste straw from a straw removal chain 3 connected to the holder and then releasing it from a waste straw bundle release part 4 on the rear surface of the cover case 2.

Reference numeral 6 denotes a three-dimensional conveyance mechanism disposed behind the combine main body 1. The three-dimensional conveyance mechanism 6 includes a frame 9 having pulleys 7 and 8 at both ends, and a chain or the like wound around both pulleys 7 and 8. Endless conveyor 10
and a pinching rod 11 provided along the upper side of the endless conveyance body 10, and the three-dimensional conveyance mechanism 6 is configured such that the starting end pulley 7 of the three-dimensional conveyance mechanism 6 extends into the straw bundle discharge section 4 of the bundling mechanism 5, The terminal end pulley 8 is arranged in an inclined manner so as to be located above the straw discharge part 4 and on the side of the combine main body 1.

A driving pulley 27 is provided on the lower surface of the frame 9 of the three-dimensional transport mechanism 6 at a portion close to the starting end pulley 7, and the endless transport body 10 is wound around this driving pulley 27.

Then, the power from the power source in the combine main body 1 is transferred to the transmission case 5' of the binding mechanism 5.
The output shaft 2 receives power from the input shaft 23 via a pair of bevel gears 24 and 25.
6 is protruded rearward from the transmission case 5', and a power transmission shaft 28, which is bendably connected to the tip of the output shaft 26 via a universal joint 29, is fitted to the drive pulley 27. Endless conveyor 10
Configure to drive.

Note that reference numeral 12 indicates the rear surface of the transmission case 5' of the binding mechanism 5 and the three-dimensional conveyance mechanism 6 facing the rear surface of the transmission case 5'.
The connecting support means 12 is a means for rotatably connecting and supporting the side surface of the frame 9 at the location of the driving pulley 27, and the connecting support means 12 includes a pair of left and right parts protruding from the rear surface of the transmission case 5' in the binding mechanism 5. The bracket 13 and a pair of right and left brackets 14 protruding from the frame 9 are connected to each other by a pin 15, so that the three-dimensional conveyance mechanism 6 can be moved up and down about the pin 15. Accordingly, the inclination angle θ of the three-dimensional transport mechanism 6 is configured to be freely adjustable.

Further, reference numeral 16 indicates support means for supporting the terminal end of the three-dimensional conveyance mechanism 6 with respect to the combine main body 1 or the binding mechanism 5, and the support means 16
comprises a support arm 16', the support arm 1
A ball and socket joint 17 is provided at one end of 6', and this ball and socket joint 17 is swingably engaged with a seat 18 attached to the terminal side surface of the frame 9 in the three-dimensional transport mechanism 6. The other end of the support arm 16' is slidably inserted into a boss 20 rotatably attached to the transmission case 5' via a shaft 19, and then fastened to a bolt 21 provided on the boss 20. As a result, the three-dimensional transport mechanism 6 is configured to be held at a position with an arbitrary inclination angle θ.

In this configuration, the straw bundle whose tip portion is tied by the bundling mechanism 5 comes out from the discharge section and is transferred to the three-dimensional conveyance mechanism 6, and the tip portion is transferred to the endless conveyor body 10.
As the stock is being conveyed to the upper part of the rear in a state of being held between the handle and the clamping rod 11, the stock head is gradually changed so that the stock head is facing down by the stock head guide rod (not shown), and the three-dimensional conveyance is carried out. When the straw bundle falls away from the end of the mechanism 6 and falls into the field, the straw bundle is oriented downward and the straw bundle stands up on the field.

In this case, a driving pulley 27 for the endless transport body 10 is provided on the lower surface of the frame 9 in the three-dimensional transport mechanism 6, and the driving pulley 27 has a
By connecting the power transmission shaft 28 from the combine main body side, the power transmission shaft 28 and the bearing for the power transmission shaft 28 are connected to the binding mechanism 5.
Since the part of the waste straw bundle that is transferred from the transfer mechanism 6 to the three-dimensional conveyance mechanism 6 is further away from the part below, and the waste straw bundle that is being transferred does not come into contact with the power transmission shaft 28 or its bearing, the waste straw bundle does not become clogged. Also, it is possible to avoid changes in the posture of the straw bundle.

Further, by providing the driving pulley 27 on the lower surface of the frame 9 in the three-dimensional conveyance mechanism 6 at a portion close to the starting end side pulley 7, the distance from the combine main body 1 to the driving pulley 7 is shortened. From the combine main body 1 to the driving pulley 7
The length of the power transmission shaft 28 can be shortened.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the rear part of the combine, Fig. 2 is a plan view, Fig. 3 is a rear view, Fig. 4 is an enlarged sectional view taken along the line - - of Fig. The figure is a sectional view taken along the line -- in FIG. 4, and FIG. 6 is a plan view showing the holding means. 1... Combine main body, 4... Straw bundle discharge part,
5... Binding mechanism, 5'... Transmission case, 6... Three-dimensional conveyance mechanism, 7... Starting end pulley, 8... End pulley, 9... Frame, 10... Endless conveying body, 11
...pinching rod, 27...driving pulley, 28...power transmission shaft.

Claims (1)

[Scope of utility model registration request] At the rear of the combine main body, a three-dimensional conveyance mechanism consisting of an endless conveyance body wound around pulleys at both ends of the frame and a clamping rod attached to the upper surface side of the endless conveyance body is installed, with the starting end of the three-dimensional conveyance mechanism In a three-dimensional discharge device for straw bundles, which is arranged so that the terminal end is located at the rear of the straw bundle discharge part of the binding mechanism attached to the main body, a pulley on the starting end side of the lower surface of the frame in the three-dimensional transport mechanism A three-dimensional discharge device for bundled waste straw in a conhe harvester, characterized in that a drive pulley for the endless transport body is provided at a nearby location, and a power transmission shaft protruding from the combine main body is connected to the drive pulley.