JPH0463648B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an excavator, for example, an excavator for excavating underground tuber crops such as potatoes and onions.

(Prior Art) Conventionally, as an excavator for digging underground tuber crops of this type, a structure described in, for example, Japanese Utility Model Publication No. 54-29240 is known. In this structure, an excavation body is provided in the machine frame, a rear transport conveyor body is connected to the rear part of this excavation body so as to be freely rotatable, and a lateral conveyor body is installed at the discharge end of this rear transport conveyor body. It has a structure in which they are connected so that they can be rotated in the vertical direction so that they can be set in a connected state or a non-connected state.

Then, in the state where the cross-feeding conveyor body is rotated rearward and upward and set so as not to act,
The excavator is advanced to dig up the harvested material and discharge it directly below the rear conveyor body. Next, the direction of the harvested material is changed, and the excavator is advanced to a part adjacent to one side of the first step as a second step. At this time, the cross conveyor body is rotated forward, and the rear conveyor body is rotated forward. When the conveyor is connected to the rear and moved forward, the transverse conveyor is activated and the harvested material from the rear conveyor is transferred to the side of the excavator, that is, in the first stroke where the excavation work was previously carried out. released towards the crop. Then, with the traversal conveyor body in operation, the excavator is advanced to the area adjacent to the other side of the first process as a third process, and in this case, the harvested product is also excavated first. It is released towards the first stage of harvesting.

In this way, the harvested products for three rows are gathered together in one row.

(Problems to be Solved by the Invention) According to the structure described in the above-mentioned publication, three rows of harvested products are gathered in one row, but at this time,
It is necessary to rotate the cross-feeding conveyor body in the vertical direction, and the power transmission structure for the vertically rotatable cross-feed conveyor body tends to be complicated. Sometimes it is necessary to cut off power transmission, and if this structure is adopted, there is a problem that the structure becomes even more complicated.

Therefore, the present invention was developed in view of these points, and it is possible to easily collect three rows of harvested products in one row while keeping the transverse conveyor body fixed in position. The purpose is to provide an excavator with a

[Structure of the invention]

(Means for Solving the Problems) The excavator of the present invention includes a machine frame in which an excavator body and a rear transport conveyor body are arranged in series in the front and rear, and a rear part that is movably provided at the rear of the machine frame. A lateral conveyor body having a large number of guide pieces for guiding the harvest carried in from the conveyor body from a side part or a discharge part of the lateral part to an inward part, and a lateral conveyor body disposed at the lower part of the lateral conveyor body. A guide body that guides the harvested material when it is guided inward from the carry-out section and has a discharge port opened in the middle, a shutter that opens and closes the discharge port of this guide body, and a conveyor body for carrying out the transverse conveyor body. A guide member is provided that is movable relative to the section and opens the discharging section when carrying out the harvest laterally, and closes the discharging section and guides the discharging section inward when carrying out the harvest inward. .

(Function) The excavator of the present invention operates the shutter to open the discharge port of the guide body during the first step of the excavation work, and also operates the inducer to unload the lateral conveyor body by the inducer. occlude the area. As a result, the harvested product carried into the lateral conveyor body is guided back onto the guide body by the guide member from the output portion thereof, and the harvested product is further conveyed inward via the guide member by each guide piece. and is discharged from the outlet in the middle.

Further, during the second stroke, the discharge port is closed by the shutter, and the guide is operated to open the discharge section of the traverse conveyor body. As a result, the harvest carried on the lateral conveyor body is conveyed to the side part, and from the carrying-out part to the harvest excavated during the first stroke of the side part, one side of the harvest is conveyed. released from.

Further, during the third stroke, the harvested material is discharged from the other side toward the harvested material dug during the first stroke.

(Example) Hereinafter, an example of the present invention will be described based on the accompanying drawings.

In the figure, reference numeral 1 denotes a main frame as a machine frame, and side frames 3, 3 as machine frames are fixed to opposite left and right ends of the main frame 1 via connecting plates 2, 2. Further, a tip 4 as an excavation body is protruded between the lower front ends of the side frames 3, 3, and a rear conveyor body 5 is provided at the rear of the tip 4 so as to be inclined rearward. This rear conveyor body 5 includes the side frames 3,
between the driven wheels 6, 6 rotatably mounted on a shaft at the front lower part between the side frames 3, 3, and the driving wheels 7, 7 rotatably mounted on the rear end upper part between the side frames 3, 3. It is constructed by suspending endless bodies 8, which are formed at intervals for shaking off soil, so as to be rotatable.

Further, a transmission 10 with an input shaft 9 protruding forward is provided at an intermediate portion of the main frame 1, and an output shaft 11 of the transmission 10 and a drive shaft 12 having the drive wheels 7, 7 communicate with each other through an interlocking medium 13. They are rotatably connected through.

Next, an extended side frame 14 serving as a machine frame is fixed to the rear end of the side frame 3 on one side so as to protrude rearward,
The lower end of this extended side frame 14 and the side frame 3 on the other side
A plate-shaped guide body 15 is fixed between the rear ends, and a discharge port 16 is formed in the middle part of this guide body 15.
A shutter 17 for opening and closing the discharge port 16 is provided on a guide frame 18 attached to the lower part of the guide body 15 so as to be movable forward and backward, and a handle 19 of the shutter 17 projects outward from the guide frame 18.

Further, a front conveyor frame 20 is fixed to the rear end portions of the left and right side frames 3, 3, and a rear conveyor frame 2 facing the front conveyor frame 20 is attached.
1 is the rear end of the extension side frame 14 and the guide body 1
5, and between the front conveyor frame 20 and the rear conveyor frame 21, a transverse conveyor body 22 is rotatably provided.
This lateral conveyor body 22 has a driven shaft 2 having front and rear driven wheels 23, 23 between one end of the front conveyor frame 20 and the rear conveyor frame 21.
4 is rotatably mounted on a shaft, and has drive wheels 25, 25 in the front and rear between the other end portions of the front conveyor frame 20 and the rear conveyor frame 21.
6 is rotatably mounted on an axis, and the front and rear driven wheels 2
A wheel end rotating body 27 formed in an endless shape is suspended between 3 and 23 and the front and rear drive wheels 25 and 25 at intervals for shaking off soil, and is rotatably suspended on this endless rotating body 27. A large number of guide pieces 28 that closely circulate on the guide body 15 at intervals of
It protrudes outward from the conveying surface 29 of. Further, the front end of the drive shaft 26 of the lateral conveyor body 22 and one end of the drive shaft 12 of the rear transport conveyor body 5 are rotatably coupled via an interlocking medium 30.

Furthermore, the proximal end of the guide 32 is rotatably attached to the other end of the guide 15, that is, the end of the traversal conveyor body 22 on the discharge section 31 side via a support shaft 33. One end of a lifting rod 34 is rotatably attached to the front end of the tip, and a portion near the upper end and a portion near the lower end of the lifting rod 34 protrudes outward from the rear end of the other side frame 3. The lifting rod 34 is detachably connected to the supporting arm 35 via a lock pin 36 which can be inserted and removed, and a handle 37 is formed at the upper end of the lifting rod 34. This derivative 32 has a large number of vertical rods 38 and a plurality of horizontal rods 3 connected to each other at predetermined intervals.
9 in a lattice-like configuration, thereby allowing the unloading section 31 of the traverse conveyor body 22 to be opened and closed. In addition, 40 in the figure is a connecting frame, 41
It is a sled-shaped grounding body.

Next, the operation of the above configuration will be explained.

A connecting frame 40 is connected to a tractor, and an input shaft 9 is connected to a power output shaft portion of the tractor via a power transmission shaft. During the first stroke shown in FIG. 4A, which is the outward journey of the excavation work, the shutter 17 is operated to open the discharge port 16 of the guide body 15. In addition, as the lifting rod 34 is lifted by the handle 36, the guide body 32 is lifted and rotated upward about the support shaft 33 at the base end.
The lock pin 36 is attached to the support arm 35 near the lower end.
Connect and lock via. As a result, the discharge portion 31 of the lateral conveyor body 22 is closed by the guide body 32, and each guide piece 28 of the lateral conveyor body 22 is set in a state in which it rotates close to the guide body 32.

Next, when the machine is towed by a tractor and power is input from the tractor to the input shaft 9, the endless body 8 of the rear conveyor body 5 is rotated clockwise in FIG. The endless rotating body 27 of the conveyor body 22 is rotated clockwise in FIG. 3. As a result, the harvest a in the field is 4
The soil is dug up by the conveyor body 5 and transported to the endless body 8 of the rear transport conveyor body 5. The endless body 8 shakes off the soil while conveying it backward, and from this discharge part the endless body 8 of the transverse conveyor body 22 is transported. The rotating body 27 is carried into the carrying section. Further, the harvested material a carried onto the endless circulating body 27 of this lateral conveyor body 22 is conveyed in the horizontal direction by this endless circulating body 27 while shaking off the soil, and is also conveyed from this carrying out section 31. It is carried out toward the induction body 32.
Further, the harvested material a carried out to this guide 32 is sequentially guided along the guide 32 to the carry-in port 42 of the guide body 15, and from the carry-in port 42 by each guiding piece 28 of the endless rotating body 27. Sequential guide 15
They are conveyed inward at the top and sequentially discharged into the field from the discharge port 16 in the middle of the guide body 15.
As a result, the large number of crops a from the first step, which were excavated with the width of the tip 4, are gathered together in a row narrower than the excavation width in the middle part, as shown in Figure 4A. .

Next, when the first stroke A is completed, the tractor turns the machine around and places the machine in a position adjacent to one side of the machine during the first stroke A. Then, the shutter 17 is operated to close the discharge port 16 of the guide body 15, and also to close the lock pin 3.
6, lower the elevating rod 34, rotate the guide 32 downward, and lock the lock pin 3 near the upper end of the elevating rod 34.
6 to the support arm 35 again. As a result, the unloading section 31 of the traverse conveyor body 22 is opened.

Next, when the machine is towed by a tractor in the second stroke in the above-mentioned state, as shown in FIG. It is sequentially released from one side toward the crop dug during the first step of the side section. As a result, the harvest a in the first step A and the harvest a in the second step B are 1
They are crowded together in rows and rows.

When the second stroke (B) is completed, the tractor turns the machine around and places the machine in a position adjacent to the other side of the first stroke (A). When the machine is towed by the tractor in the third stroke C, the transverse conveyor body 22 is moved as shown in FIG.
The harvested material a that has been sequentially brought in is transported to the unloading section 31.
From there, it is sequentially released from the other sides toward the crop a that was dug up during the first step A of the side part. As a result, the harvested material a during the first and second stages Iro and the harvested material a during the third stage C are gathered together in one row. In this way, the harvested product a for three processes is
In the middle of the first step, they are gathered together in a row and gathered together in a row.

〔Effect of the invention〕

According to the present invention, while the conveyor body connected to the rear conveyor body remains fixed in position,
By operating the shutter and the induction body relatively according to the order of the work process and opening and closing the corresponding discharge port and carrying-out section, it is possible to easily collect the harvested material for three processes in one row. . Therefore, it is possible to provide an excavator that is superior in operability compared to an excavator that moves up and down on a transverse conveyor body, and also has a simple structure and excellent workability.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view of the excavator, Fig. 2 is a side view of the excavator, Fig. 3 is a rear view with a portion of the excavator cut away, and Fig. 4 is a working machine. It is an explanatory diagram of a process. 1, 14... Machine frame, 4... Excavating body, 5... Rear conveyor body, 15... Guide body, 16... Discharge port, 17... Shutter, 22... Rear conveyor body, 28... ...guiding piece, 31...unloading section, 23
...derivative.

Claims (1)

[Claims] 1. A machine frame in which an excavation body and a rear transport conveyor body are arranged in a row in the front and back, and a machine frame that is movable at the rear of the machine frame and carries in harvested products from the rear transport conveyor body to the side part or side part. A transverse conveyor body having a large number of guiding pieces that guide the material from the discharge section to the inner side, and a transverse conveyor body disposed at the lower part of the transverse conveyor body to guide the harvested material as it is guided from the discharge section to the inner side. a guide body with a discharge port opened in the middle; a shutter for opening and closing the discharge port of the guide body; and a shutter for opening and closing the discharge port of the guide body, which is movably provided with respect to the discharge section of the lateral conveyor body, and opens the discharge section when carrying out the harvest laterally. An excavator characterized in that the excavator is further equipped with a guide member that closes the unloading section and guides the unloading part inward when the harvest is being unloaded.