JPS6218182Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a plurality of horizontally rotating pulling devices arranged side by side in the left and right direction at the front of the reaping device, and a vertically rotating forced scraping device placed in front of the parallel pulling devices. Switching one forced raking device of the lifting devices between a first position located in the center or approximately in the center between the parallel lifting devices and a second position located at the lateral outer side of one of the lifting devices. The present invention also relates to a reaper which is configured to be freely fixed and in which the other forced raking device is provided in a fixed position on the lateral outer side of another lifting device.

In conventional reapers, when configuring the forced raking device to be adjustable in its left and right positions, the input shaft is configured with a spline shaft extending along the adjustment direction.
This spline shaft guided the position adjustment of the forced scraping device. If you change the posture of the forced raking device accordingly when cutting in the middle or reciprocating as part of the reaping work mode, it is possible to perform both work modes efficiently and economically by using a single raking device. Can be done with a compact configuration. In the conventional configuration using a spline shaft, the left and right positions could be adjusted too freely, making it difficult to set the forced raking device at the optimal position suitable for the work type, and incorrect positioning could result in reaping. There was a problem that was interfering with the work itself. The object of the present invention is to provide a reaper in which the position of a forced raking device is easy to set and the transmission structure is also simple.

The structural feature of the present invention devised to achieve the object is that one end is pivotally attached to the frame on the aircraft side at an intermediate position between the first attitude and the second attitude, and the other end is attached to the movable side forcibly scraped. A swinging frame pivotally attached to the lifting device is provided to guide switching between the first posture and the second posture, and the drive shaft of the fixed side forced scraping device and the drive shaft of the movable side forced scraping device are provided. The two are interlocked and connected via a transversely expandable power transmission shaft and a universal joint.

Therefore, the following effects can be obtained with the present invention. In other words, although the structure is simple, just by providing the swing frame, the action of the swing frame allows the forced raking device to be moved from side to side, for example, to change the first position to the middle position, which is suitable for reciprocating mowing. It is easily switched to the second posture suitable for cutting work, and even a worker who is not accustomed to mechanical cutting work can easily and accurately determine the position. Moreover, when the movable forced raking device is switched to the first position or the second posture, the transmission distance fluctuation and the transmission angle fluctuation between the movable forced raking device and the fixed side forced raking device are controlled by the expansion and contraction of the transmission shaft and the transmission angle fluctuations. Since this can be absorbed by the bending of the universal joint, it is possible to perform both types of reaping work, such as splitting in the middle and normal reciprocating, by changing the posture of the forced raking device as a whole. Therefore, it has become possible to simplify and compact the transmission structure and reduce costs.

Hereinafter, the implementation diagram of the present invention will be explained based on the drawings. In a combine harvester in which the reaping section B is configured to be movable up and down by driving for the main machine A equipped with the threshing device 1, the reaping section B is as follows. Configure.

At the front of the clipper type reaping device 2, a pair of horizontally rotating pulling devices 3, 3 for pulling up two rows of planted stem culms rearward and upward are installed, with the tips of the pulling claws 3a, 3a facing each other. They are placed side by side in the left and right direction,
A vertical conveying device 5 is installed between the parallel pulling devices 3, 3 and the threshing device 1, and the vertical conveying device 5 gradually changes the harvested stem culm to a sideways posture while conveying it to the threshing feed chain 4. From the reaping transmission case 6 immediately behind the reaping device 2, the parallel pulling devices 3, 3
The supporting rods 8 of the grass divider 7 are extended forward through the central part between them and the lateral outer parts of the parallel pulling devices 3, 3, and the support rods 8 of the grass divider 7 are extended forward, and ... Among the stem culm introduction paths 9A and 9B to the parallel pulling devices 3 and 3 formed between them, the width l ₁ of the stem culm introduction path 9A located on the control section 10 side is set to the other stem culm. The width is larger than the width _l2 of the introduction route 9B.

Between the weeding divider 7... and the parallel pulling devices 3, 3, there is a vertical lever configured to project and move the locking claws 11a, 12a from the lower front to the upper rear along the direction of movement of the aircraft. Rotary forced raking devices 11 and 12 are arranged, and one of the two forced raking devices 11 and 12, which is located on the control section 10 side, is connected to the parallel lifting devices 3 and 3. The device is configured to be able to swing freely between a first posture located in the center between the two and a second posture located on the lateral outer side of one of the lifting devices 3 and to be fixed therebetween, and the other one is configured to be capable of swinging and fixing. Raising device 12
at the lateral outer side of the other pulling device 3 and between the transmission case 14 fixed to the transmission cylinder 13 to the pulling device 3 which is set upright from the reaping transmission case 6, and the divider support rod 8. It is installed in a fixed position.

The drive shaft 15 of the fixed side forced raking device 12 and the drive shaft 16 of the movable side forced raked device 11 are connected by a transmission shaft 17 having a hexagonal cross section and a universal joint 18, which can be expanded and contracted laterally. a bellows-shaped cover 19 containing a telescopic core metal 19a that covers the outer circumference of the transmission shaft 17;
, case 1 of both forced raking devices 11 and 12
It is fixedly connected between 1A and 12A.

In order to configure the movable forced raking device 11 to be switchable between the two positions, a reinforcing frame 2 is provided which is connected between the upper portions of both the lifting devices 3, 3.
0, the rear end of the pipe frame 21 bent into a crank shape is inserted and supported so as to be rotatable only around the front and rear axis _P1 , and the forced raking device 11 is attached to the front end of the pipe frame 21. A rod-shaped member 22 extending rearward from the case 11A is fitted and supported rotatably around the other front-rear axis _P2 , and a lower end of the case 11A is provided with respect to the divider support rods 8, 8. A supporting member 23 having a substantially inverted U-shaped cross section that can be fitted and engaged from above and prevents lateral movement in the fitted state is fixed, and the forcible scraping device 11 is then two anteroposterior axes
It is configured to be able to freely switch between the two positions mentioned above by swinging around P ₁ and P ₂ .

In addition, a lock pin 24 is inserted between the boss portion 20A of the reinforcing frame 20 and the pipe frame 21 to securely hold the forced raking device 11 in the first and second postures.
The rod-shaped member 22 is provided with a handle 25 for changing the posture.
is firmly attached.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the reaper according to the present invention, with Fig. 1 being a side view of the front part of the combine, Fig. 2 being an enlarged partially cutaway side view of the main parts, and Figs. 3 and 4 showing forced raking. A partially cutaway front view showing the second attitude and the first attitude of the device, and FIGS. 5 and 6 are enlarged sectional views of the main parts. 2... Reaping device, 3... Pulling device, 11,1
2... Forced scraping device, 15, 16... Drive shaft,
17... Transmission shaft, 18... Universal joint, 20... Frame on the fuselage side, 21... Swinging frame.

Claims (1)

[Scope of utility model registration request] At the front of the reaping device 2, a plurality of horizontally rotating pulling devices 3, 3 are arranged side by side in the left and right direction, and a vertically rotating forced raking device 11 is arranged in front of the side-by-side pulling devices 3, 3. One of the 12 forced raking devices 11
is configured to be switchable and fixable between a first attitude located at the center or substantially the center between the parallel lifting devices 3, 3 and a second attitude located on the lateral outer side of one of the lifting devices 3, and , in the reaping machine in which the other forced raking device 12 is provided in a fixed position on the lateral outer side of the other lifting device 3, the first
A swinging frame 21 having one end pivoted to the frame 20 on the body side and the other end pivoted to the movable side forced raking device 11 is provided at an intermediate position between the posture and the second posture, and The driving shaft 1 of the fixed side forced raking device 12 is guided to switch between the position and the second position.
5 and the drive shaft 16 of the movable side forced scraping device 11
A reaping machine characterized in that these are interlocked and connected via a transversely expandable transmission shaft 17 and universal joints 18, 18.