JPH0458293B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in temporary storage tanks mounted on harvesters.

[Prior art] Root vegetables such as potatoes are harvested by a harvester. When harvested, they are first stored in a temporary storage tank mounted on the harvester, and then transferred from the tank to bags, containers, truck beds, etc. removed or deposited on the ground. Therefore, in order to discharge the harvest from the tank quickly and without damaging it, it is necessary to adjust the attitude of the tank to the conditions at the destination.

Since the posture of conventional tanks was adjusted using hydraulic cylinders installed on the front, rear, left, and right sides of the bottom, it was only possible to raise the tank as it was or to lift the discharge end. Therefore, it is necessary to raise the discharge end to discharge the harvest into a container with high side panels or the loading platform of a truck, or to raise the discharge end high to discharge the harvest into a container with high sides, to load the harvest into a bag efficiently, or to raise the discharge end to the ground to avoid damaging the harvest. It was not possible to lower the discharge end of the tank close to the ground surface in order to drop it.

[Problems to be Solved by the Invention] The present invention has been made in view of the above, and its purpose is to lift the discharge end considerably high and discharge the harvest into a container or truck loading platform with a high side plate. Another object of the present invention is to provide a tank whose discharge end can be lowered close to the ground surface.

[Means for Solving the Problems] In order to achieve the above object, the features of the present invention are such that a first support is fixed to the machine frame, and a second support is slidable vertically on the first support. The tank is rotatably supported on the second column, a lifting hydraulic cylinder for sliding the second column is provided on the machine frame, and a tilting hydraulic cylinder for rotating the tank is installed between the second column and the tank. This is because it was established in

[Function] If the lifting hydraulic cylinder is extended to raise the tank along with the second support column, and then the tilting hydraulic cylinder is shortened to tilt the tank, the discharge end will rise considerably high, so the high side panels of containers and truck beds will It can be placed inside the discharge end.

If you extend the tilting hydraulic cylinder and tilt the tank without raising the tank, or after raising it slightly using the lifting hydraulic cylinder, the tank's discharge end will be lowered to near the ground surface, making it possible to efficiently harvest crops. It can be loaded into bags or dropped onto the ground to prevent damage to the crop.

When loading crops into containers or truck beds with low sides, only the lifting hydraulic cylinders need to be extended.

After leveling the tank and filling the tank with the harvested material to the maximum limit, the tank is either not raised or raised slightly using the lifting hydraulic cylinder, and then the tilting hydraulic cylinder is shortened so that the discharge end of the tank is raised. Tilt it. If the crop is subsequently added to the tank in this way, the crop in the tank will be leveled out, so that the tank will be full without leaving any voids.

[Example] A tank of the present invention will be explained based on an example shown in the drawings.

As shown in Figures 2 to 4, the potato harvester is equipped with a digging blade 12 on the underside of the machine frame 10, and a first conveyor 14 follows behind the digging blade. A rotary conveyor 16 is located at the rear. On the upper side of the machine frame 10, a sorting conveyor 18 is provided that extends from the rotary conveyor 16 to the tank 20. The tip of the sorting conveyor 18 can be adjusted in inclination, and can also be lifted up and removed from the tank 20. The potatoes dug up by the digging blade 12 are transferred from the first conveyor 14 to the rotary conveyor 1.
6 and then transferred to a sorting conveyor 18, and then temporarily stored in a tank 20. A bottom conveyor 21 is arranged at the bottom of the tank 20. tank 2
0 is supported by a strut 30 attached to the machine frame 10.

When the discharge part 20a of the tank 20 enters and exits the rod of the hydraulic cylinder 19 in FIG. 4, it projects to the side of the harvester as shown by the chain line. A bottom conveyor 21 is also provided at the bottom of the discharge section 20a. This bottom conveyor is driven by a hydraulic motor to discharge the potatoes in the tank 20 from the discharge section 20a to a bag, a container, a truck bed, the ground surface, or the like.

As shown in FIG. 1, a pair of front and rear first struts 30 are fixed to the machine frame 10, and a second strut 32 is inserted into the inside of the struts so as to be movable up and down. A lifting hydraulic cylinder 34 extending parallel to the first column 30 is fixed to the machine frame 10, and the rod of the hydraulic cylinder 34 is integrally fixed to the second column 32 via a bracket 36. A receiving plate 38 is fixed to both the front and rear sides of the tank 20, and the receiving plate 38 is swingably supported by the second column 32 via a pin 40. The cylinder of the tilting hydraulic cylinder 44 is pinned to a bracket 42 fixed to the second column 32, and the rod of the hydraulic cylinder 44 is pinned to a bracket 46 fixed to the tank 20. When the hydraulic cylinder 44 is extended or contracted, the tank 20 tilts left and right about the pin 40.

As shown in FIG. 5, the cross sections of the first support 30 and the second support 32 are U-shaped in opposite directions, and the upper end of the first support 30 has a guide wheel that fits inside the second support 32. 50 is attached via pin 52. A rod of a lifting hydraulic cylinder 34 is pinned to a bracket 36 fixed to the second column 32. The pin 40 is fixed to the center of the second support 32,
The pin fits into a bearing portion 39 of the receiving plate 38, and the receiving plate 38 is integrally fixed to the tank 20.

As shown in FIG. 6, a guide wheel 54 whose diameter is slightly smaller than the inner width of the first support column 30 is attached to the lower end of the second support column 32 via a pin 56. Therefore, the second support column 32 slides smoothly and stably along the inner surface of the support column 30.

Next, the operation of the tank of the present invention will be explained. As shown by the chain line in FIG. 7, if potatoes are stored with the bottom of the tank 20 horizontal, the potatoes in the tank 20 will accumulate in a mountain shape, so it is impossible to store the potatoes in the tank while leaving an empty space on one side. limit reached.
Therefore, as shown by the solid line in FIG. 7, after the tank 20 is slightly raised by operating the lifting hydraulic cylinder, the rod of the tilting hydraulic cylinder 44 is retracted to tilt the tank 20. Next, the tip of the sorting conveyor 18 is also raised to transfer the potatoes to the tank 20.
When the potatoes are added to the container, the potatoes fill the empty space on one side, so that the tank 20 becomes full without leaving any empty space.

As shown in FIG. 8, the tilting hydraulic cylinder 44
When the rod is extended, the discharge end of the tank 20 descends, so the head difference between the discharge end and the ground surface becomes smaller. Therefore, damage to potatoes discharged to the ground can be reduced. At this time, the tank may be raised slightly in advance.

As shown by the chain line in FIG. 9, when discharging the potatoes in the tank 20 into a container or truck bed,
The rod of the lifting hydraulic cylinder 34 is extended to raise the tank 20, but if the side plate 60 of the container or truck bed is higher than the discharge end of the tank 20, the discharge end cannot be placed inside the container or truck bed. I can't. However, by retracting the rod of the tilting hydraulic cylinder 44 to tilt the container 20 and lifting the discharge end, the side plate 60 of the container or truck bed can be brought closer to the harvester, so that the discharge end of the container Or get inside the truck bed. Therefore, potatoes can be loaded even into containers with high side panels 60 or into truck beds.

[Effects of the Invention] As described above, the tank of the present invention moves up and down along with the second column that moves up and down along the first column fixed to the machine frame, and tilts around the pin fixed to the second column. Similar to tanks, when loading crops into the tank, it can be tilted so that the crop in the tank is leveled and filled, or the tank can be raised parallel and placed in a container with relatively low sides or on a truck bed. Not only is it possible to discharge crops, but it is also possible to lower the discharge end of the tank below the machine frame and discharge crops onto the ground or into a bag with a low head, which was impossible with conventional tanks. It has a special effect in that it is also possible to further tilt the raised tank and lift the discharge end to discharge the harvested material into a container with high side panels or a truck loading platform.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the main parts of the tank of the present invention;
2, 3, and 4 are a front view, a top view, a side view, and a fifth
The figure is a plan view showing the main parts of the first and second supports of the tank, FIG. 6 is a sectional view taken along the - line in FIG. 1, and FIGS. 7 to 9 are views corresponding to FIG. 1. 7th
The figure shows the situation when the potatoes are leveled in the tank to fill it up, Figure 8 shows the situation when the discharge end is lowered to near the ground, and Figure 9 shows the situation when the potatoes are placed in a container with high side panels or a truck bed. The following shows the conditions when loading. In the figure, numeral 10 is a machine frame, 20 is a tank,
30 is a first column, 32 is a second column, 34 is a lifting hydraulic cylinder, 38 is a receiving plate, 39 is a bearing portion, 40
44 is a tilting hydraulic cylinder, 50 is a first guide wheel, and 54 is a second guide wheel.

Claims (1)

[Scope of Claims] 1. A first strut fixed to the machine frame, a second strut attached to the first strut so that it can be raised and lowered, and a tank rotatably supported on the second strut, A tank for a harvester comprising: a lifting hydraulic cylinder provided on the machine frame to raise and lower the second support; and a tilting hydraulic cylinder interposed between the second support and the tank to tilt the tank. , a second support with an inverted U-shaped cross section is fitted inside the first support with a U-shaped cross section, a first guide wheel is provided at the upper end of the first support to fit inside the second support; A tank for a harvester, characterized in that a second guide wheel is provided at the lower end of the support to fit inside the first support. 2. A tank for a harvester according to claim 1, characterized in that a receiving plate is fixed to the tank, a bearing portion is provided on the receiving plate, and the bearing portion is fitted onto a pin fixed to a second support. .