JPH0220908Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) The present invention is a harvester for underground rhizome crops (potatoes), in particular, the harvested underground rhizome crops are stored in a harvesting box installed on a trolley, and then transported via a conveyor. The present invention relates to a harvesting machine which is transported outside the harvesting box.

(Prior art) As shown in FIG. 5, a conventional harvesting machine is equipped with a hydraulic cylinder 20' on one side edge in the width direction of a cart B', and a bracket 40' on the opposite side edge to hold a harvest box.
The tip of the hydraulic cylinder 20' is pivotally attached to the upper outer surface of A', and the harvesting box on the opposite side of this pivoting part is further attached.
The lower outer surface of A' was rotatably pivotally connected to a bracket 40', and the harvesting box A' was mounted and supported on a cart B'. In addition, the harvesting box A' has an open top surface and one side surface, and the open side portion
The base end of a conveyor C' is pivotally connected to the lower end of D', and the opening part D' can be opened and closed by the conveyor C'.

(Problems to be solved by the invention) When the above-mentioned conventional harvesting machine carries out underground crops stored in the harvesting box A' onto the loading surface of a truck, etc., the harvesting machine tilts the harvesting box A' and moves the transport conveyor. C' is tilted outward to open the side opening D' of the harvesting box A', and the output port 16' of the conveyor C' is opened.
The platform surface is positioned below, and the underground rhizome crops are dropped from the harvest box A' onto the platform surface via a conveyor C'.

Therefore, by tilting the harvest box A', the harvest box
The upper part of the underground rhizome crops stored in A' may fall from the open edge of the upper surface of the harvesting box A' to its tilting side, damaging the underground rhizome crops or moving the loading platform of a truck or the like to the exit 16' of the conveyor C'. When moving, there was a risk that the upper edge of the tilting plate provided around the periphery of the loading platform would accidentally crash into the back surface of the conveyor C', and there was a fear that the area of impact would be damaged.

In addition, in order to uniformly load the underground rhizome crops carried out from the outlet 16' of the conveyor C' on the center and entire surface of the loading platform, the harvest box A' is tilted to the maximum extent and the loading platform of a truck or the like is moved closer. Alternatively, a configuration may be considered in which the conveyor C' is extended toward the tip and loaded, but in either configuration, the height between the loading platform surface and the outlet 16' of the conveyor C', that is, the falling distance is large. As a result, the underground rhizome crops that fall from the carry-out port 16' and are loaded on the loading platform are scratched or dented, causing them to rot, thereby deteriorating the commercial value of the underground rhizome crops. Furthermore, as shown in Fig. 5, the loading port 16' is placed on the periphery of the loading platform so that it faces the loading surface from the upper periphery of the gate plate, but this configuration also prevents damage to the crops, such as scratches and dents. Moreover, in order to stack the crops evenly on the loading platform, a worker had to do the work of evenly stacking the crops, which caused a number of problems, including extremely poor workability.

In view of the conventional circumstances mentioned above, this invention allows the loading platform of a truck etc. to be brought close to the cart, eliminates the possibility of underground crops stored in the harvesting box falling out of the harvesting box, and also prevents the loading surface of the loading platform from falling. It is an object of the present invention to provide a rhizome crop harvesting machine that can reduce the distance from a carry-out port, that is, the falling distance of the rhizome crops, and can transport the rhizome crops without damaging them.

(Means for solving the problems) The means of the present invention for solving the above problems are as follows:
A lifting device is provided on the trolley to horizontally move the harvest box on the trolley of the rhizome crop harvester,
This lifting device supports the harvest boxes on the trolley, and the tip of the conveyor is swingable from the center in the longitudinal direction.

(Function) A harvest box containing rhizome crops is raised horizontally on a trolley by a lifting device. This makes it possible to bring the loading platform of a truck or the like close to the cart, and prevents underground rhizome crops from falling out of the harvest box. Furthermore, the conveyor is tilted outward and its tip is swung downward. This makes it possible to reduce the distance between the exit of the conveyor and the loading surface, that is, the falling distance.

(Example) An example of the present invention will be described below based on the drawings.

In the figure, A indicates a harvesting box, and the harvesting box A is formed into a substantially rectangular box with the upper surface and one side of the side surface open, and the lower end of the side opening D has a swinging tip. The base end of a freely formed transport conveyor C is pivotally connected, and the opening part D is provided in the transport conveyor C so as to be freely openable and closable, and the bottom surface transports the stored rhizome crops out of the harvest box A. It is formed by a transfer conveyor 15'.

The conveyor C has a longitudinally central portion and a distal end formed by a separate frame, and a driven shaft 10 in the central portion.
A hydraulic cylinder 11 is provided above the pivotally connected portion, and the hydraulic cylinder 11 causes the tip to swing.

Further, the conveyor C and the harvesting box A are connected to a driven shaft 12 provided at the lower part of the side opening D of the harvesting box A.
A receiving piece 13 is provided on the outer surface of the pivoting portion and fixed by welding, and a hydraulic cylinder 14 is provided on the lower end of this receiving piece 13 and the back surface of the harvesting box A. 14, the conveyor C can be opened and closed from the side opening D of the harvest box A.

Further, a drive shaft 17 is rotatably mounted at the tip of the conveyor C, that is, at the bottom of the outlet 16 through which the underground rhizome crops loaded and transported by the conveyor 15 are discharged, and the entire conveyor 15 is driven through the drive shaft 17. Give strength.

The drive shaft 17 is connected to a hydraulic motor 18 provided on the outer surface of the frame, and the hydraulic motor 18 is linked with a drive source to be described later.

Reference numeral B designates a trolley, and a traction rod 1b is provided at the center of the front part of the trolley B to allow the trolley B to be towed by a tractor (not shown) or the like, and wheels 2b are attached to the left and right sides of the vehicle. Make it as you like.

Further, at the front of the truck B in the traveling direction (in the direction of the arrow), the transport conveyor C is supported by an elevating device E that supports the harvest box A horizontally so as to be vertically movable.

Lifting device E is hydraulic cylinder 20, 20, 2
The hydraulic cylinders 20, 20, 21, 21 are connected to a drive source to be described later. be done. Also, the cylinder rods 201, 2 of the hydraulic cylinders 20, 20
Reference numeral 01 denotes support pieces 2 erected on the side-opening portion D of the harvest box A provided on the cart B, that is, on the upper open edge of the side surface of the transport conveyor C that can be freely opened and closed.
3 and 23, and the hydraulic cylinders 2 are mounted on both sides of the upper open edge on the opposite side.
Cylinder rods 211 and 211 are pivotally connected to each other, and the harvesting box A is supported on a cart B so as to be vertically movable horizontally. In addition, the support rods 22, 2
2 is formed into a vertically elongated cylindrical shape, and shaft rods 22', 22' are slidably inserted into the opening at the upper end of the cylinder so that it can be expanded and contracted.

The supporting rods 22, 22 are cylinder rods 2 which are pivotally connected to the harvesting box A via supporting pieces 23, 23.
01,201 Hydraulic cylinder 20, 20 erected near the erected part, the shaft 2 is slidably provided.
The tips of 2' and 22' are connected to the cylinder rod 20
1,201 via arm pieces 24, 24.

25 in the figure is a reinforcing frame rod, and this reinforcing frame rod 25
is provided and fixed in an inclined manner on the truck B from the vertical center of the support rods 22, 22, and the support rods 22, 22
Make sure to stand up on trolley B. Reference numeral 26 denotes a frame body constructed across both ends of the shaft rods 22', 22'.

The entire harvest box A, which is supported vertically and movably on the trolley B via the lifting device E configured as described above, rises horizontally upward, and the loading platform such as a truck is brought close to the trolley B. The conveyor C is tilted outward so that it can be conveyed, and its tip is swung downward to convey the rhizome crops to the center of the loading platform (see FIG. 4).

To explain the harvesting device, reference numeral 30 is a rolling coulter provided at the front lower part of the cart B in the traveling direction (arrow direction).
A harvesting device is constructed by installing a burau 31 in an inclined manner such that it spreads out toward the front and becomes lower at the front, digs up the soil on both sides of the rhizome crops, and stretches it from immediately after the burau 31 to the rear of the cart B. The underground rhizome agricultural products are sent to a sieving conveyor 32 provided in a suspended manner. Further, behind the sieving conveyor 32, in detail, a cage-shaped conveyor 33 is installed at the rear of the trolley B, and the agricultural products sent from the sieving conveyor 32 are sent upward in a rotary manner, and from the upper part of the cage B. It is installed in the top opening of the harvesting box A provided in the front, and the tip is sent to a storage conveyor 34 whose tip can be swung upward by a hydraulic cylinder 35. It is designed to be stored.

Next, to explain the drive source, power is supplied from the power supply source of the tractor to a hydraulic pump (not shown) provided on the harvester, and this hydraulic pump is connected to each hydraulic cylinder 11, 14, 20, 2 through a hose.
1, 35 and the hydraulic motor 18 to supply driving force. In addition, a power supply shaft (not shown) provided at the rear of the tractor is connected to a drive shaft provided on trolley B, and the rear end of this drive shaft is connected to a transmission, and each conveyor 3
2, 33, and 34 are driven.

In this embodiment, the vehicle is driven by a tractor, but it is also possible to install an engine so that it can run by itself, or to optionally provide an auxiliary engine to drive each drive section.

(Effects) Since the present invention is configured as described above, it has the following advantages.

Since the harvest box is supported on the trolley by a lifting device that moves the harvest box up and down horizontally, the entire harvest box can be raised horizontally by the lifting device. Therefore, the underground rhizome crops in the harvest box can be carried out without worrying about them falling out from the open edge of the top surface of the harvest box, and the loading platform of a truck or the like can be brought close to the trolley with the transport conveyor tilted outward. At that time, it is possible to eliminate the risk of the loading platform accidentally colliding with the back surface of the conveyor. Moreover, the underground rhizome crops in the harvest box can be loaded onto the approximate center of the loading platform via the conveyor, and the underground stemming crops can be stacked uniformly over the entire surface of the loading platform without bothering the operator, which improves work efficiency. You can improve your performance.

Since the conveyor is formed so that its tip can swing freely from the center in the longitudinal direction, by swinging the tip downward when carrying out underground crops, the height with respect to the loading surface of a truck or the like can be adjusted. That is, the falling distance of the rhizome crops can be reduced, the rhizome crops can be loaded without being damaged or dented, and the value of the rhizome crops as a product does not decrease.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a side view, Fig. 2 is a front view thereof, Fig. 3 is a front view showing the harvest box raised upward, and Fig. 4 is a loading platform for a truck or the like. FIG. 5 is a front view showing a conventional example. In the figure, A...Harvesting box, B...Dolly, C...Transfer conveyor, D...Side opening, E...Elevating device.

Claims (1)

[Scope of utility model registration request] It consists of a harvesting box mounted on a trolley with a harvesting device at the bottom, a conveyor installed on the harvesting box, and a lifting device that moves the harvesting box up and down horizontally.The harvesting box has its top and one side open. At the same time, the bottom surface is formed by a transfer conveyor, the tip of which is swingable and pivotally attached to the lower part of the side opening of the harvesting box, and the lifting device is mounted on a trolley to move the bottom of the harvesting box to the bottom of the harvesting box. It consists of a hydraulic cylinder installed on a side part, a part on the side of the side opening and a part on the opposite side, respectively, and a telescopic support rod installed on the side of the side opening of the harvest box, and the tip of the hydraulic cylinder. are pivotally attached to the upper open edge of the harvesting box on the side of the side opening and the upper open edge of the opposite side of the harvesting box, and the tip of the support rod is connected to the pivot of the hydraulic cylinder on the side of the side opening of the harvesting box. A harvesting machine for underground crops that is connected to the dressing part.