JPH0242097Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a grain lifting device such as a thrower for a grain tank mounted on a combine harvester.

[Conventional technology]

A device has already been proposed in which a grain tank with a flip-up structure such as a thrower is installed in the grain tank mounted on a combine harvester, and the harvested, threshed, and collected grain is transferred to a truck or the like that is parked near the field. ing.

However, since the grain lifting cylinder of the thrower is long and protrudes higher than the combine main body, the grain lifting cylinder of the thrower is designed to be foldable when work is stopped, as well as on road vehicles, and the combine main body, in detail, is It is necessary to support the folded grain lifting cylinder on the upper surface of a grain tank or threshing device.

Therefore, this folding part requires a highly precise joint structure so that the grain lifted along the inner surface of the lower grain lifting tube can be accurately sent to the upper grain lifting tube. Of course, it was necessary to create a complex structure that would securely attach the two.

In addition, there was a problem in that the upper grain lifting cylinder had to be tilted or erected because the hands were not flexible, requiring careful operation and requiring a large amount of effort.

[Purpose of invention]

The present invention was developed in view of the above circumstances, and it solves the problems of the prior art by simple and rational means, and improves the ease of tilting and raising of the upper grain lifting cylinder, and the ease of folding. It is an object of the present invention to provide a grain lifting device for a combine harvester in which the structure of a flexure joint can be simplified.

[Means to resolve the problem]

The grain frying device of this invention solves the conventional problems,
A grain lifting device for a combine harvester that reaps and threshes grains while traveling, stores the threshed grains in a grain tank, and transports the grains to another device via a grain lifting device such as a thrower installed in the grain tank. The grain lifting cylinder of the grain lifting device is configured such that the middle part of the grain lifting cylinder is bendable, and a lifting rod that slides along the central axis of the grain lifting cylinder is provided at the lower part of the grain lifting cylinder above the bending part. The present invention is characterized in that a support member for supporting and fixing the lower end of the lifting rod is provided at the upper part of the grain lifting cylinder below the bent portion.

〔Example〕

The details of the embodiments will be explained with reference to the drawings.

A is the combine main body, B is the reaping device, C is the threshing device, and D is the traveling device.

The grains that have been threshed in the threshing device C are fed to the lower end of the screw elevator 1 hanging down on one side of the threshing device C by a horizontal screw conveyor (not shown), and the grains are further transported to the lower end of the screw elevator 1 suspended on one side of the threshing device C. Grain is supplied to a hopper-shaped grain threshing member 2 equipped with a plurality of funnel-shaped discharge ports 2a through a diagonally downward discharge tube 1a provided at the upper end of the grain body 1, and the grain is fed to the base of the combine main body A. It is configured to be supplied and collected to a grain tank 4 removably mounted on a plate 3.

In the bottom plate valley of the grain tank 4, there is provided a screw transporting body 5 that is perpendicular to the direction of movement of the combine main body A.
is mounted on a shaft, and this screw transfer body 5
A thrower 6 is connected to the outer end of the tube. The grain lifting cylinder 7a directly connected to the centrifugal direction of the grain lifting cylinder 7 of the thrower 6 has a length such that its upper end is located slightly above the upper end of the combine main body A, and the upper end of this grain lifting cylinder 7a has a The upper grain lifting tube 7b is the hinge 8a
They are connected to each other so that they can be bent, more specifically, as shown by the imaginary line in FIG. 1, by a joint member 8 of the structure, and the two lifting grain cylinders 7a and 7b constitute a long grain lifting cylinder. A grain release guide 9 is provided at the tip of the upper grain lifting cylinder 7b. Reference numeral 10 denotes a metal fitting that supports the middle part of the grain lifting cylinder 7a, and is designed so that the angle of this grain lifting cylinder 7a can be changed.

A cylinder 11 whose upper end is attached to the joint member 8 is rotatably fitted onto the upper end of the grain lifting cylinder 7a, and a lower part of the upper grain lifting cylinder 7b has its lower end connected to the joint member 8. It is rotatably fitted into a tube 12 attached to the tube. That is, by rotating the cylinders 11 and 12, the direction of the hinge 8a of the joint member 8 is changed, and the upper grain lifting cylinder 7b is moved around the hinge 8a as a fulcrum.
The direction of tilting can be adjusted arbitrarily.
Further, although not particularly shown, the joint member 8 is configured to provide precision so that when the two grain cylinders 7a and 7b assume a linear posture, the inner surfaces of each other are positioned seamlessly. Of course, one to a plurality of pins (not shown) are inserted through the flange portion 8b of the joint member 8, and the upper and lower grain cylinders 7a, 7b are connected to each other.
In some cases, the positioning may be performed.

Further, two parallel mounting plates 13 are provided on the side surface of the cylinder 12 and are perpendicular to the axial direction thereof, and a hole 13a is formed at the tip of each mounting plate 13.
A lifting rod 14 parallel to the axis of the upper grain lifting cylinder 7b is slidably inserted between the holes 13a, and a retaining pin 15 is provided in the middle of the lifting rod 14. The structure is such that the lifting rod 14 does not come off. That is, it is sufficient that the distance from the retaining pin 15 to both ends of the lifting rod 14 is greater than the length between the mounting plates 13.

Reference numeral 16 denotes a support cylinder provided on one side of the cylinder 11, into which the lower end of the lowered lifting rod 14 is inserted. A through hole 1 is provided at the lower end of the lifting rod 14 that protrudes downward from the lower part of the support tube 16.
7 is provided, and a dowel pin 18 is inserted into this and raised to fix the rod 14 to prevent it from coming off. Although not shown, an internal thread is formed on the support cylinder 16, and a screw provided at the lower end of the lifting rod 14 is screwed onto this, so that the lifting rod 14 can be moved up and down into a grain-lifting cylinder, more specifically, a cylinder. 11 and the cylinder 12 in a fixed manner. In the figure, reference numeral 19 denotes an L-shaped operating rod that is attached to the upper grain lifting cylinder 7a and exposed to the outside through a cutout window 20 formed on the outer surface of the reinforcing cylinder 12. The grain barrel 7a is rotated to change the direction of grain discharge. Reference numeral 21 in the figure is a support member for supporting the upper grain lifting cylinder 7b on the combine main body A, and a buffer plate 22 made of rubber or the like is adhered to the support surface of this support member 21. Since the position of the supporting surface of the supporting member 21 with respect to the combine main body A differs depending on the direction of inclination of the grain lifting cylinder 7b, movement and rotation adjustment by releasing the tightening can be freely performed with respect to the grain lifting cylinder 7b. It has been made possible.

〔effect〕

As described above, the present invention has the following effects.

(a) When tilting and raising the upper grain lifting cylinder 7b with respect to the grain lifting cylinder 7a, the lifting rod can be held while being held;
Operation can be performed safely and reliably.

(b) By connecting and supporting the lower end of the lifting rod with the support member provided on the lower grain lifting cylinder, the upper and lower grain lifting cylinders can be easily integrated, and the upper and lower grain lifting cylinders can be easily integrated, unlike conventional methods. Not only can the structure of the joint member be simplified, but also the fixing means for the joint member can be omitted.

[Brief explanation of the drawing]

FIG. 1 is a side view, and FIG. 2 is a front view of the main parts of the same. A... Combine harvester, B... Reaping device, C...
Threshing device, 4... Grain tank, 5... Screw transfer body, 6... Thrower, 7... Grain lifting drum, 7a,
7b... Grain barrel, 8... Joint member, 11, 12...
...tube, 13...mounting plate, 13a...hole, 14...
Lifting rod, 15... Retaining pin, 16... Support tube, 17... Through hole, 18... Knock pin.

Claims (1)

[Scope of claim for utility model registration] (a) Reaping and threshing while driving, storing the threshed grains in a grain tank, and transporting the grains to other places via a grain lifting device such as a thrower installed in the grain tank. (b) In a grain lifting device for a combine harvester configured to transfer grains, (b) the middle part of the grain lifting cylinder of the grain lifting device is configured to be bendable, and the grain lifting cylinder is arranged in a lower part of the grain lifting cylinder above the bending part. A lifting rod is provided that slides along the central axis of the cylinder, and (c) a support member is further provided at the upper part of the grain lifting cylinder below the bent portion to support and fix the lower end of the lifting rod. A combine grain frying device featuring: