JPH0229874Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a thrower for taking out grains, which includes a thrower case communicating with a grain storage tank and a thrower cylinder that is rotatable around the thrower axis and detachable from the discharge cylinder of the thrower case. .

As this type of grain take-out thrower, those shown in the following [ ] and [ ] have been known.

[] As shown in FIG. 9, the thrower case 11
An annular groove 50 is formed on the outer peripheral surface of the discharge cylinder portion 11A.
A cylindrical body 50 in which a is formed is fixed, and the cylindrical body 50 of the thrower cylinder 12 is fixed.
A detachment stopper 51 is provided at a portion that can be attached and separated and rotated freely relative to 0, and which prevents the thrower cylinder 12 from being pulled out by fitting into the annular groove 50a during attachment.

[] As shown in Figure 10, thrower case 1
Flange portions 52 and 53 are formed at the opposing ends of the discharge cylinder portion 11A and the thrower cylinder 12, and are capable of surface contact from the axial cylinder direction.
The flange portion 53 on the side of the thrower tube 12 has a pullout that fits and engages from the outside in the radial direction of rotation across both the flange portions 52 and 53 to allow rotation of the thrower tube 12 while preventing separation movement. The fasteners 54, 54 are fixed.

In the former case [], the gap between the outer circumferential surface of the cylindrical body 50 on the thrower case 11 side and the large circumferential surface of the throat tube 12, and in the latter case [], the gap between the flange portion 52 on the thrower case 11 side and the throat Cylinder 12
Although it is possible to easily assemble the thrower cylinder 12 to the thrower case 11 by increasing the gap between the side retaining fittings 54,
There is a drawback that rotation of the thrower cylinder 12 tends to be twisted. In particular, this tendency becomes more pronounced as the thrower cylinder becomes longer and heavier.

On the other hand, if the gap is made smaller, the thrower cylinder 12 can be rotated smoothly, but there is a drawback that the assembly work requires a lot of effort.

The purpose of the present invention is to rationally improve the above-mentioned contradictory problems.

The characteristic structure of the grain take-out thrower according to the present invention, which has been made to achieve such an object, is that a cylindrical body that is only rotatable around the axis of the thrower case is fitted onto the discharge cylinder portion of the thrower case. The thrower tube is removably fixedly connected to the shaped body, and the functions and effects of this feature are as follows.

<Function> In other words, the rotation of the throat tube is guided between the discharge tube portion of the thrower case and the cylindrical body, and the throat tube is attached and detached between the cylindrical body and the throat tube. By configuring the rotating part and the attachment/detachment part of the thrower tube to be functionally independent, the gap between these parts can be set to a gap suitable for the rotation and attachment/detachment of the thrower tube. .

<Effects> Accordingly, the work of assembling the throat tube to the thrower case is facilitated, and the throat tube can be rotated smoothly without causing any twisting.

Hereinafter, embodiments of the configuration of the present invention will be described based on the drawings.

As shown in Figs. 1 and 2, the combine harvester is constructed of a machine that is equipped with a crawler-type traveling device 1 and a threshing device 2, and the front part of the machine is equipped with a planted grain culm for harvesting. A reaping section 3 and a driver's seat 4 are provided to transport and supply the threshing device 2, and a disk-shaped cutter 5, which is an example of a waste straw processing device, is installed at the rear of the threshing device 2.
A concave space that opens laterally and outwardly is formed between the two.

In the recessed space, there is a grain storage tank 6 whose size is approximately equal to the front and rear width of the threshing device 2, and the first grain that has been threshed and sorted in the threshing device 2 is lifted to the upper part of the tank 6. A grain lifting device 7 for feeding the grains is provided, and the tank 6 is configured to be able to be pulled out laterally and swung outwardly using its rear vertical axis as a fulcrum.

A screw conveyor 9 is installed at the bottom of the tank 6 for transporting the collected grain to the rear, and the rear plate 6a of the tank 6 is provided with a screw conveyor 9 for carrying out the grains carried out by the screw conveyor 9 at a predetermined location. A thrower A is provided for taking out the material.

The thrower A includes a thrower case 11 that communicates with the tank 6 and houses a thrower blade 10 fixed to the screw shaft of the screw conveyor 9, and a discharge cylinder portion 11 of the thrower case 11.
It consists of a thrower cylinder 12 that is rotatable around the throat axis and detachable with respect to A, and the thrower cylinder 12 further includes three linear cylinder parts 12A, 12.
B, 12c and one curved cylindrical portion 12D so that they can be attached and separated.

As shown in FIGS. 3 to 5, the shaft of the discharge cylinder part 11A constitutes the connecting part between the discharge cylinder part 11A of the thrower case 11 and the first linear cylinder part 12A located at the lowermost part. A cylindrical body 13 that is rotatable around the core and a pair of regulating members 1 that abut and prevent the cylindrical body 13 from sliding in the axial direction.
4 and 15, and the lower part of the first linear cylindrical part 12A is configured to be freely inserted into and removed from the axial direction of the cylindrical body 13, and further, the first linear cylindrical part 12A and the cylindrical There are levers 16a at two locations displaced 180 degrees in the rotational direction between the body 13 and the body 13.
A simple fixing metal fitting 16 is provided which can be switched between a state in which both 12A and 13 are locked and a state in which they are released by a swinging operation.

The cylindrical body 13 also has a fixed connection position in the circumferential direction and a fixed connection position in the axial direction of the first linear cylindrical portion 12A by fitting into the joint flange portions 12a, 12a of the first linear cylindrical portion 12A. Members 8, 8 that determine the fitting depth are fixed, and
The lower end portion of the first linear cylindrical portion 12A is configured in a tapered shape.

Among the regulating members 14 and 15, a portion 15a of the regulating member 15 located below is configured in a wave shape, and the cylindrical body 13 is configured to elastically engage with the wave-shaped portion 15a. A member 17 is fixed thereto which allows the thrower cylinder 12 to be rotated and holds the thrower cylinder 12 in an arbitrary discharge position.

Further, as shown in FIG. 6, two parts are disposed between the upper side of the first linear cylindrical part 12A and the lower side of the second linear cylindrical part 12B, and are displaced by 180 degrees in the rotational direction.
At these locations, simple fixing fittings 18, 18 are provided which can be switched between a state in which both 12A, 12B are locked and fixed in a fitted state and a locked state by a swinging operation of a lever 18a.

In addition, as shown in FIG. 7, two circumferential locations corresponding to the upper side of the second linear cylindrical part 12B and the lower side of the third linear cylindrical part 12C, and the third linear cylindrical part 12C Two circumferentially corresponding locations on the upper side and the lower side of the curved cylindrical portion 12D are provided with flanges 19 for fixing these both 12B, 12C and 12C, 12D in a fitted state with bolts. is fixed.

Said second linear cylinder part 12B and curved cylinder part 12
D has a pair of operating handles 20, 20 and 2, respectively.
1 and 21 are fixed.

Further, the thrower case 11 can be freely swung and fixed in the inward and outward directions within a certain range with the rotational axis of the thrower blade 10 as a fulcrum, and when it is swung inwardly into the body, the discharge cylinder portion 11A The cutter 5 is constructed so that the cutter 5 is inserted under the cutter 5. When the thrower tube 12 is removed, the discharge tube portion 11A is inserted below the cutter 5, so that the cutter 5 can be used to prevent rainwater from entering the throat case 11.

Incidentally, if the cutter 5 as described above is not present, it is preferable to attach a cap to the opening of the thrower case 11 to prevent rainwater from entering.

FIG. 8 shows another embodiment, in which flanges 22 and 23 are connected to the opposite ends of the cylindrical body 13 and the thrower cylinder 12 for bolting and fixing these bodies 13 and 12. It was established.

[Brief explanation of the drawing]

Figures 1 and 2 are side and rear views of the entire combine, Figure 3 is an enlarged partially cutaway view of the connection between the discharge cylinder of the thrower case and the first linear cylinder of the thrower cylinder, and Figure 4 is Figure 3 is a sectional view taken along the - line in Figure 3, Figure 5 is a sectional view taken along the - line in Figure 3, and Figure 6 is an enlarged partial cutout of the connecting part between the first linear cylindrical part and the second linear cylindrical part of the thrower cylinder. Figure 7 is a partially cutaway enlarged view of the connection between the second straight cylinder part and the third straight cylinder part and the third straight cylinder part and the curved cylinder part of the thrower cylinder, and Figure 8 is a separate view. FIGS. 9 and 10 are enlarged sectional views of essential parts showing a conventional thrower connection structure, respectively. 6...Grain storage tank, 10...Thrower blade,
11...Thrower case, 11A...Discharge cylinder part, 1
2... Thrower tube, 13... Cylindrical body, 16... Metal fitting, 16a... Lever.

Claims (1)

[Scope of claim for utility model registration] Thrower case 1 communicating with grain storage tank 6
1 and the discharge cylinder portion 11A of this thrower case 11
In a grain takeout thrower equipped with a thrower cylinder 12 that is freely rotatable around the thrower axis and detachable, the discharge cylinder part 11A of the thrower case 11 has a cylindrical shape that can only rotate around its axis. A thrower for taking out grains, in which a body 13 is fitted onto the outside, and the thrower tube 12 is fixedly connected to the cylindrical body 13 in a detachable manner. The thrower case 11 is attached to the grain storage tank 6 so as to be rotatable within a certain range with the axis of rotation of the thrower blade 10 or the vicinity thereof as a fulcrum. Thrower for taking out grain. A metal fitting that allows the thrower cylinder 12 to be freely inserted into and removed from the cylindrical body 13, and that can be switched between a locking fixed state and a locking release state by swinging a lever 16a between the two 12 and 13. 16 is provided.