JPS584408Y2 - digging machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a digging machine, and more particularly, to a digging machine for digging and harvesting tubers such as potatoes.

When digging and harvesting tubers such as potatoes, a digging machine is used, which is formed by connecting a conveyor body with a sieving function to the rear of a digging body, and the digging body digs up the tubers along with the soil. The tubers are transferred onto a conveyor body, the soil is sieved off while being conveyed by the conveyor body, and the tubers are discharged onto the ground from the conveying end of the conveyor body.
In that case, it is desirable that the tubers released onto the ground be gathered together in a row as much as possible for subsequent collection. First, a guide device such as a guide plate is provided to guide the guide to a certain width.

In the present invention, the guide device as described above is not set in a fixed position, but is provided in a reversible manner, so that it is possible to freely select whether to guide the object to be excavated or to release it.

An embodiment of the present invention will be described below with reference to the drawings.

1 is a machine frame arranged on both sides, and a digging blade 2 as a digging work body is provided at the front lower part between the machine frames 1 on both sides, and a conveyor that slopes upward is provided behind the digging blade 2. Connect body 3.

This conveyor body 3 is connected to endless chains 77 on both sides via sprockets 6 between a rotating shaft 4 installed in the front lower part between the machine frames 1 and a drive shaft 5 installed in the rear upper part between the machine frames 1. The hook is formed by turning the hook and passing the horizontal rods 8 at regular intervals in the front and rear direction between the endless checks 77 on both sides.

Further, a support frame 9 is constructed above the front part between the machine frames 1, a transmission 10 is attached to this support frame 9, and a connecting frame 11 is protruded from the front of the support frame 9. The output shaft 12 of the transmission 10 is connected to a tractor (not shown), and transmits power from the tractor to the transmission 10.
Power is transmitted from the drive shaft 5 to the drive shaft 5 via the transmission medium 13.

Reference numeral 14 denotes a guide device, and this guide device 14 includes a shaft tube 16 attached to the tip of a support frame 15 having a substantially inverted shape, and a support frame 18 to which a guide plate 17 is attached to the shaft tube 16. The guide plate 17 is rotatably supported by a shaft 19 via the support frame 15, and the guide plate 17 is rotatably supported in the vertical direction with respect to the support frame 15.
It is formed by stretching.

A pair of guide devices 14 having such a structure are fixed to the upper rear portions of the machine frame 1 on both sides by tightening bolts 21 through the base of the support frame 15.
The guide plates 17 of No. 4 are located inside the machine frame 1 on both sides and are arranged to face each other in a substantially V-shape with a wide front and a narrow rear. It is positioned with a gap maintained between it and the conveying surface.

Note that 22 is a sliding body attached to the lower part of the machine frame 1.

Next, the effect of the above configuration of this embodiment will be explained.

The machine frame 1 is towed and advanced by a tractor, and
Power is transmitted from the tractor to the transmission 10 to bring the conveyor body 3 along with it, and in this state, when moving through the field where tubers etc. are to be dug, the digging blades 2 dig up the harvested material together with the soil. The conveyor body 3 sieves the soil from the excavated items from between the 8 horizontal rods and transfers the excavated items rearward and upwardly as harvested items. It is released onto the ground from the rear upper conveyance end.

At this time, the guide plates 17 on both sides located on the upper rear conveyance surface of the conveyor body 3 guide the material to be excavated, which has ascended over a wide range on the conveyor body 3, to the center between the machine frames on both sides. It acts so that the material to be excavated is discharged toward the rear center of the conveyor body 3.

For example, during excavation work on a sloping field, one side of the guide plate 17 located on the slope T side is set to the guiding state, and the other side of the guide plate 17 located on the upper side of the slope is set to the released state. In other words, if you work with the excavator set upside down, the material to be excavated released to the ground will be gathered at the center of the rear of the excavator, and the back and forth excavation work will be smooth. It turns out.

In addition, in reciprocating work in a flat field, the guide plates 17 on both sides are set to the active state during the forward work in the first step, and the material to be excavated is discharged to the center, and during the return work in the second step and During the outgoing work of the third stroke, if only one guide plate 17 is set in use and the material to be excavated is discharged to the other side, a so-called ball concentrating action will be performed.

In these cases, the guide plate 1 set in use
When a pressing force is applied to the guide plate 7, the guide plate 17 reacts elastically via the coil spring 20. On the other hand, when the guide plate 17 is to be put out of use, it can be removed by lifting the guide plate 17. The guide plate 17 is semi-automatically reversed by the elastic force of the coil spring 20 and is set and maintained at a height when not in use.

According to the present invention, by setting at least one of the guide plates on both sides to be in use, the material to be excavated conveyed by the conveyor body is guided in a desired direction toward one side or the center behind the conveyor body. In addition, when the guide plate is set to be in use, the guide plate is elastically held via a coil spring, so that the excavated material conveyed by the conveyor body does not collide with the guide plate. The object to be excavated can be guided smoothly, and when replacing the guide plate with one that is not in use, it is easy to just push the guide plate. The excavator can be semi-automatically flipped upwards and held in a non-use position at a sufficient height by operation, is simple in structure and operation, and is equipped with a guide device that can operate smoothly and reliably. A pick-up machine will be provided.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a plan view of the excavator, Fig. 2 is a vertical side view thereof, Fig. 3 is a plan view of its main parts, and Fig. 4 is its main parts. FIG. 5 is a perspective view of the guide device. 1... Machine frame, 2... Digging blade as a digging work body, 3... Conveyor body, 14...
...Guiding device, 15...Support frame, 17...
... Information board, 19 ... Axis, 20 ...
coil spring.

Claims (1)

[Scope of utility model registration request] A machine frame on both sides, a digging work body provided at the front lower part of the machine frame on both sides, a conveyor body connected to the rear of the machine body, and a conveyance surface near the conveyance end of the conveyor body. A guide device located above and arranged on both sides,
The guide device includes a support frame that protrudes inward from the upper part of the machine frame on both sides, and a shaft supported on the inner end of the support frame so as to be reversible in the vertical direction. It is characterized by comprising a guide plate extending toward the rear, and a coil spring that has one end latched to the guide plate and the other end latched to the support frame to hold the guide plate in a stored state. excavator.