JPS6350964B2 - - Google Patents

Description

[Detailed Description of the Invention] For example, a forage harvester that harvests dent corn, grass, etc., cuts it into required lengths, blows it up and stores it in a trailer, etc.
No. 56-39711, etc. are well known. These forage harvesters are
In both cases, the cutting section is attached to the tractor so that it protrudes to the right side of the tractor (hereinafter referred to as side mounting), but in the side mounting type, the cutting section is located on the right side of the tractor. Therefore, during reaping work, this type of foliage harvester is commonly used because it is easy to monitor the reaping status and the work is easy. However, when harvesting is carried out using a known forage harvester in a field where dent corn stands, for example, at the beginning of cutting, a tractor T is used as shown in Figure 1.
Since the forage harvester H is attached to the side of the farm, if the forage harvester H were to enter the field as it is, the tractor T would have to crush the crops Z, and the forage harvester would have to enter the field. It is customary to manually cut and remove the crop Z, which can be raised by the length of the machine width L, to create a path where the tractor can run and turn freely within a range that does not interfere with the cutting work. In a large-area field, it requires a great deal of effort to manually cut and remove the crops Z in the tractor path. In addition, as a forage harvester that solves the above-mentioned problems, a forage harvester H is attached to the rear three-point link TB of a tractor T, and a type that performs reaping work by moving the tractor T backwards is known in foreign countries. However, this is a specially modified tractor with a steering device installed on both the front wheels and the rear wheels so that the normal specification tractor T, which is mainly used for forward traveling work, can also be freely used for backward traveling work, so the structure of the tractor itself has changed. The system is complicated and expensive, which puts a heavy economic burden on the user.

The present invention provides a novel foliage harvester in view of the above-mentioned circumstances, and the details of one embodiment thereof will be described below with reference to the drawings.

T is a tractor, and H is a forage harvester (in this example, it is a forage harvester for long-pole crops such as dent corn). And H
The structure is such that the front end is a long rod type reaping feeding part 1 equipped with a cutting blade, and the central part is a cutting blower part 2 having a cylindrical rotary blade and blowing blades, and the cutting blower part 2 is connected to and erected upward. It is roughly composed of a blow-up duct 3 and a frame F. A folding frame 4 is fixed and horizontally installed at a lower rear end portion of the cutting blower 2, and a connector 5 is provided at the left end portion of the folding frame 4. A horizontal frame 7 is connected to the connecting tool 5 by a support shaft 6 so as to be rotatable 180 degrees in a horizontal plane. In the position where the horizontal frame 7 protrudes to the left side of the forage harvester H, the folding frame 4 and the horizontal frame 7 are fixedly supported by the support shaft 6 and the fixing pin 8; As shown in FIG. 4, a forage harvester H is attached to the side of a tractor T, and the machine moves forward to reap and harvest crops. A first transmission M for inputting the rotational power of the tractor T is installed approximately at the center of this horizontal frame 7, and a top mast and a pair of lower link brackets 9 on the left and right sides are installed at the same location. 7, a connecting piece 10 having a through hole 10A is fixed to the end opposite to the support shaft 6, and a connecting piece 10' is fixed to the end of the folding frame 4 opposite to the connecting tool 5. It is provided so as to match the through hole 10A of.

On the left side of the cutting blower section 2, a second transmission MA for operating the cylindrical rotary blade and the reaping feed section 1 is fixed to the folding frame 4. A first input shaft 11A made of spline molding is horizontally installed in the front row part of the second transmission MA so as to protrude toward the tractor.
A second input shaft 11B formed by spline molding is horizontally installed in the rear row portion to protrude away from the tractor, and the first input shaft 11A and the second input shaft 11B rotate in A and B directions (opposite directions to each other), respectively. A gear train is built into the second transmission MA.

Note that the shaft 1 coaxially connected to the first input shaft 11A
2 rotates a cylindrical rotary blade, and a pulley 13 provided in the second transmission MA is connected to the reaping feed section 1.
It operates.

Also, from the 1st mission M to the 2nd mission MA
An extendable and retractable power transmission shaft J is removably connected to the first input shaft 11A or the second input shaft 11B.

Reference numeral 14 indicates a hitch for connecting a trailer 16 (for storing and transporting harvested products) fixed approximately at the center of the horizontal frame 7, and reference numeral 15 indicates support wheels of the forage harvester H.

The TR is a truck (for storing and transporting harvested crops) that travels backwards to reap the harvest and follows behind the forage harvester when performing the splitting process.

Next, to explain the function of the present application, for example, in a field where dent corn is standing, when the crop is about to be cut in the middle (work to create a path where the tractor can freely run and turn at the beginning of cutting), Tractor T and Forage Harvester H
The position relative to the position shown in FIG. 4 is changed from the posture shown in FIG. 2 to the posture shown in FIG.

That is, remove the pin 8 that can be inserted into the connector 5,
If the flexible transmission shaft J that is inserted into the first input shaft 11A is removed, the fixed state between the horizontal frame 7 and the folding frame 4 will be released, so next, the forage harvester H is rotated in the I direction around the support shaft 6. Then, the folding frame 4 is turned 180 degrees and folded, the connecting pieces 10 and 10' are overlapped, and the respective through holes 10A are aligned, and then the connecting pin 8 is inserted.
Insert and fix the folded position.

Also, a universal transmission shaft J connected to the first transmission M
is inserted into and connected to the second input shaft 11B of the second transmission MA. As a result, as shown in the second figure, the body center line of the tractor T and the body center of the forage harvester H are approximately on the same line, and the cutting feed section 1 of the forage harvester H is placed in a position opposite to the forward direction of the tractor T. becomes. As for the procedure for pivoting the folding frame 4 in the I direction, referring to FIG. 4, first, the fixing pin 8 is pulled out and made free.

Next, turn the handle of the tractor T to the left (arrow A).
When cut and moved forward, the horizontal frame 7 and the folding frame 4 form a substantially V-shape in plan with the support shaft 6 as the center.

After this, turn the tractor handle to the right (arrow B).
When the folding frame 4 is cut and moved backward, the folding frame 4 is folded against the horizontal frame 7.

This causes the tractor T to travel backwards, enter the field where the crops are standing, and travel backwards (arrow B').
By reaping crops approximately equal to the machine width of the tractor T, a path is created in the field through which the tractor can freely run and turn. After this path is created, the posture of the forage harvester H is changed to the side-mounted type, which is commonly practiced, as shown in Figure 4, and the tractor is driven forward (arrow
F′) is used to reap and harvest crops.

That is, in FIG. 3, the connecting pin 8 inserted into the connecting pieces 10, 10' is removed, and the second input shaft 11
Pull out the universal transmission shaft J to be inserted into B, then turn the forage harvester H 180 degrees around the shaft 6, so that the base 5A of the horizontal frame 7 and the connector 5 of the folding frame 4 overlap, and each By aligning the through holes 5H and inserting and fixing the rear connecting pin 8, the forage harvester H can be placed in a working position in which it protrudes to the right side of the tractor as shown in Fig. 4, and can be freely connected to the first transmission M. The transmission shaft J is refitted and connected to the first input shaft 11A of the second transmission MA.

To briefly describe the transmission of power during work, when the tractor is mowing a path (splitting work) as shown in Figure 2, the power of the tractor T is
It is transmitted from the PTO shaft to the universal transmission shaft J, passes through the first transmission M, and then passes through the universal transmission shaft J to the second input shaft 1.
1B is rotated in the B direction, the first input shaft 11A is rotated in the A direction by the gear train in the second transmission MA, and the shaft 12 connected coaxially is a cylindrical rotary blade, and the pulley 13 is the reaping feeding section 1. This is to rotate each of the two.

Furthermore, as shown in Fig. 4, the PTO of the tractor T in the case of normal work in which the tractor moves forward with the forage harvester H protruding to the right side.
Power is transmitted from the shaft by rotating the first input shaft 11A in the A direction via the universal transmission shaft J, and as described above, the coaxial shaft 12 connects the cylindrical rotary blade and the pulley 1.
3 rotates the reaping feeding section 1, respectively.

The blow-up duct 3 can be turned left and right by the operation of an electric actuator, etc., and by connecting a trailer 16 to the hitch 14 and simultaneously towing it with a tractor, the crops blown up from the blow-up duct 3 can be stored in the trailer 16. It is.

The effects of the invention with the above configuration are as mentioned at the beginning, namely: (A) The cutting section can be turned and folded by 180 degrees on a horizontal plane, and the folding operation can be performed using a connecting pin that can be inserted into the frame connecting section. The folding position can be achieved by simply inserting and disengaging the shaft and changing the transmission shaft to the transmission input shaft. Even when performing work to create a path that allows for traveling and turning, it is possible for the user to attach it to the rear of a commonly used regular specification tractor and perform the work while traveling backwards. Specially modified tractor TA (equipped with a steering device on the front and rear wheels so that both forward and backward operations can be performed freely) is not required, and there is no need for extra machinery investment, reducing the economic burden. is reduced.

(B) In addition, when the reaping and cutting section is in the folded position, it is possible to install it on a specially modified tractor and perform reaping work by running backwards, and when driving on general roads after harvesting in the field. Also, since there is no lateral protrusion of the cutting section,
It is convenient to drive on the road, and even when the forage harvester is stored in a warehouse, the volume of the machine is compact, so it does not take up much space.
In addition, when the product is loaded onto a truck or the like and shipped, handling becomes easier and transportation costs are reduced.

(C) After the middle splitting operation, the reaping cutting section can be easily reversed in the normal direction and the reaping cutting section can be projected to the right side of the tractor. This position allows forward reaping work with a tractor with normal specifications. If the trailer is pulled by a hitch fixed to the frame, the feed from the blow-up duct can be stored in the trailer in sequence.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the reaping situation explaining the defects of the conventional forage harvester, Fig. 2 is a plan view showing the situation of the intermediate splitting operation by the method of the present invention, and Fig. 3 is an enlarged view of the main part of the same. Figure 4 is a plan view of the present application showing the reaping situation when the forage harvester is positioned on the right side of the tractor and is traveling normally forward, and Figure 5 is a plan view showing the reaping situation when the tractor is traveling backwards with a known specially modified specification. It is a top view showing the reaping situation. T... Tractor, H... Forage harvester, 1... Reaping feeding section, 4... Folding frame, 5... Connector, 6... Support shaft, 7... Horizontal frame, 8... Fixing pin, 10 ...Connection piece.

Claims (1)

[Scope of Claims] 1. A horizontal frame having a first transmission for inputting rotational power of the tractor is attached to a three-point link of the tractor, and a connecting means is formed at the free end of the horizontal frame, and a through-hole is formed at the other end of the horizontal frame. a coupling means having a hole is formed at the free end of the folding frame to which the forage harvester is fixed, and a coupling means is formed at the other end of the folding frame having a through hole; is connected in a straight line with a support shaft and a fixing pin, and a flexible transmission shaft is removably connected to the first input shaft of the first transmission and the second transmission, while the folding frame is connected with the fixing pin etc. Accordingly, it is constructed so that it can be freely rotated and folded by approximately 180 degrees horizontally about the support shaft, and by connecting the connecting means of the horizontal frame and the connecting means of the folding frame with a fixing pin or the like, it becomes an intermediate splitting working posture,
The structure of the forage harvester is characterized in that, in this working posture, a flexible transmission shaft is removably connected to the second input shaft of the first and second transmissions. 2. The structure of a foliage harvester according to claim 1, wherein a hitch for connecting a trailer or the like is provided approximately at the center of the horizontal frame.