JPH0367649B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention provides a grain tank for storing grains from the threshing device, which is arranged in parallel at a position near the lateral side of the threshing device. and a grain supply and conveyance device that takes out the grains from the threshing device and carries them into the tank, and a grain discharge and conveyance device that has a vertical conveyance tube and a horizontal conveyance tube for carrying out the grains from the tank. Relating to a grain tank device of a combine harvester equipped with.

[Conventional technology]

Conventionally, in the grain tank device of this type of combine, a maintenance port was provided on the side wall of the grain tank side of the threshing device for inspecting and maintaining the inside of the threshing device, cleaning, etc. A transmission mechanism for a grain lifting device or a threshing device is often installed in a grain tank, and in order to perform inspection and maintenance from the maintenance port, cleaning of the grain lifting device, maintenance of the transmission mechanism, etc., conventionally There was an opening in the side wall of the grain tank that could be opened and closed.

However, providing an opening in the side wall of the grain tank as described above requires a lid to open and close the opening, which not only complicates the structure of the grain tank, but also The throughing operation required the operator to enter the grain tank, which had the disadvantage of forcing the operator to work in a confined space.

[Problem to be solved by the invention]

In a combine harvester equipped with a grain tank as described above, in order to make maintenance of the threshing device part easier without incurring the above-mentioned inconveniences, it is possible to make the whole grain tank removable, for example. It is conceivable that the conveying screw device for discharging grains at the bottom of the grain tank be configured to be rotatable around the axis, but in the former case, the operation of attaching and detaching the heavy grain tank itself is troublesome, and in addition, it is difficult to assemble and disassemble the power transmission mechanism. This also requires a great deal of effort.

In addition, in the latter case, although it is less troublesome than complete attachment and detachment, it may require a special drive means to forcibly drive the heavy grain tank up and down, or the bottom side of the grain tank must be Since the position is not far from the threshing device, there is a disadvantage in that the outer part of the threshing device cannot be opened very widely.

An object of the present invention is to provide a grain tank device which has a simple structure, but which can easily shift its position to an outer position where the lateral outer part of the threshing device is wide open. It is about providing.

[Means to solve the problem]

The technical means of the present invention taken to achieve the above object is to provide a grain tank in the vicinity of the lateral side of the threshing device for storing grains from the threshing device, and in this grain tank, A grain supply and conveyance device that takes out the grains from the threshing device and carries them into the tank, and a grain discharge and conveyance device that includes a vertical conveyance tube and a horizontal conveyance tube for conveying the grains out of the tank. In the grain tank device of the combine that is equipped, a vertical conveyance cylinder portion of the grain discharge conveyance device is rotatably installed near a tank side wall on one side of the grain tank in the front-rear direction; The grain tank is attached and supported by the vertical conveyance tube of the grain discharge conveyance device, and the grain tank is rotated together with the vertical conveyance tube to change its position to the outside away from the threshing device. This means that it can be configured freely.

[Effect]

The effects of taking the above technical measures are as follows.

a The grain tank is configured to be rotatable around the vertical axis, which is the cylindrical axis of the vertical transport tube of the grain discharge and conveyance device, so the grain tank can be attached and removed, and it can be raised and lowered around the horizontal axis. The grain tank can be easily and smoothly moved to both the open position and the closed position by simply rotating the grain tank around the vertical axis.

b Since the vertical conveyance tube of the grain discharge conveyance device, which is the center of rotation of the grain tank, is provided near the tank side wall on one side of the grain tank in the front and back direction, the center of rotation is centered at the center of the tank. The lateral outer part of the threshing device can be opened more widely compared to the case where the threshing device is installed in the lateral side of the threshing device.

c. A structure in which the vertical conveyance tube of the grain discharge conveyance device is rotatably installed, and the grain tank is attached and supported by the vertical conveyance tube and rotated around the cylinder axis of the vertical conveyance tube. By doing this, the rotation center axis of the grain tank can also be used as the vertical transport tube of the grain discharge and transport device itself.

〔Effect of the invention〕

The following effects can be obtained from the above action.

(b) Due to the effect of a above, there is no need for troublesome work such as attaching and detaching the heavy grain tank or assembling and disassembling the transmission mechanism, and there is no need for special drive means to drive the heavy grain tank up and down. , the grain tank can be opened easily and quickly.

(b) Due to the effect described in b above, the lateral outer part of the threshing device can be opened more widely than when the attitude of the grain tank is simply changed around the horizontal axis, and a large working space can be secured for cleaning. and maintenance can be performed.

C. As mentioned in c above, by using the vertical conveying tube, which is part of the grain discharge and conveyance device, as the rotational support structure of the grain tank, the rotational support structure is provided with a separate rotational support structure. It can be simplified and configured more easily than in other cases.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIGS. 1 and 2, the combine harvester of the present invention includes a reaping device 1, a threshing device 2, and a grain supplying and conveying device 3 for carrying the grain discharged from the threshing device 2 into a grain tank. , a grain tank 4, a grain discharge conveyance device 5 for transporting grains from the tank, and a driver's seat 6 are mounted on a traveling vehicle body 7. The main components of the combine harvester are the same as those that are conventionally known, so their explanation will be omitted.

Near the rear side of the grain tank 4, there is a vertical conveying tube 8 for lifting and carrying out the grains in the tank 4, and a horizontal conveying tube 8 following the end of the vertical conveying tube 8 for guiding the grains laterally. The grain discharging and conveying device 5, which is composed of a conveying tube 8' and a helical shaft 17 installed in the vertical conveying tube 8 and the horizontal conveying tube 8', is moved from the side wall of the tank 4 facing the threshing device 2. The vertical conveying tube 8 portion is located on the vehicle body 7 at a position away from the outside of the machine body and near the side wall of the tank 4 on one side of the grain tank 4 in the longitudinal direction. be.

The vertical conveying tube 8 has its lower end rotatably fitted into a circular hole 10 formed in the car body 7, and its midway portion is attached to a bracket 11 whose one end is fixed to the side wall of the threshing device 2. It is rotatably fitted and retained within the cylinder 12 at the end, and is configured to be rotatable around the axis of the vertical conveyance cylinder 8 itself.

The grain tank 4 is rotated by using a cylindrical portion for transporting the discharged grains, as in the embodiment.
Fixedly connecting the vertical conveying cylinder 8 and the grain tank 4,
The grain tank 4 is rotatably mounted and supported around the axis of the vertical conveyance cylinder 8. Thereby, the grain tank 4 is configured to be freely repositionable to the outer side of the vehicle body 7 away from the threshing device 2.

One end of the delivery helix 13 disposed at the bottom of the grain tank 4 projects from the grain tank 4, and a pulley 14 is pivotally supported on this projecting part. A belt 16 of a belt transmission device 15 provided in the belt is wound around the belt 16.

In this way, the grain tank 4 is disposed near the lateral side of the threshing device 2, and the free end of the outlet tube of the grain supply and conveyance device 3 protrudes into the upper part of the grain tank 4, The working posture is such that the belt 16 is wound around the pulley 14, and the grain tank 4 is rotated around the axis of the helical shaft 17 in the vertical conveying cylinder 8, and the horizontal side wall of the threshing device 2 is rotated. It is possible to change the maintenance posture to a position that is far away from the maintenance port 18 formed in the main body.

Reference numeral 19 denotes a recess formed in the ceiling plate of the grain tank 4, and 20 a recess step, which is located next to the horizontal installation of the grain discharging and conveying device 5, which is configured to be vertically movable and rotatable as is well known. It supports the conveying cylinder 8' in a non-operating state.

The vertical conveying tube 8 may be placed in the grain tank 4 at or near a square portion of the grain tank 4, or at or near the center of the front and rear side surfaces.

In addition, in the claims, the lateral side refers to the side where the grain tank 4 is arranged with respect to the threshing device 2, and the front-back direction refers to the direction perpendicular to this lateral side in plan view. It is something.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall plan view of a combine harvester, and FIG. 2 is a rear view of a grain tank. 2... Threshing device, 3... Grain supply conveyance device, 4
...Grain tank, 5...Grain discharge conveyance device, 7...
...Vehicle body, 8...Vertical transport cylinder, 8'...Horizontal transport cylinder.

Claims (1)

[Claims] 1. A threshing device 2 is installed at a position near the lateral side of the threshing device 2.
A grain tank 4 for storing grains from the grain tank 4 is installed in parallel, and the threshing device 2
A grain discharging and transporting device having a grain supplying and transporting device 3 for taking out grains from the tank 4 and transporting them into the tank 4, a vertical transporting cylinder 8 and a horizontal transporting cylinder 8' for transporting the grains from the tank 4. In the grain tank device of a combine harvester equipped with At the same time, the grain tank 2 is rotated together with the vertical conveying tube 8 section of the grain discharge conveying device 5 with the grain tank 4 attached and supported by the vertical conveying tube 8 section. A grain tank device for a combine harvester, characterized in that the grain tank device is configured to be able to change its position outwardly away from the threshing device 2.