JPH0531859Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to an underground crop harvesting machine that is pulled by a tractor or the like and continuously harvests underground crops such as potatoes from the soil.

``Prior Art'' Conventionally, as shown in Japanese Utility Model Application Publication No. 154730/1983, there is a conveyor that conveys underground crops excavated from the soil to the rear, and a conveyor that conveys the crops carried by this conveyor to the left and right sides. There is a technology that includes a horizontal conveyor that conveys the grains, and a sieve that discharges the crops conveyed by the conveyor backwards.

``Problem to be solved by the invention'' In the above-mentioned conventional technology, the sieve body is disposed above the conveyor, so soil that falls from the sieve body tends to accumulate on the upper side of the conveyor. In addition to not being able to easily tilt the body diagonally backward and downward, the sieve body is rotated to the upper side of the conveyor when it is not needed, so soil attached to the sieve body is easily scattered to the upper side of the conveyor. I had the above problem.

``Means for Solving the Problems'' However, the present invention consists of a conveyor that conveys the underground crops excavated from the soil to the rear, and a lateral conveyor that conveys the crops conveyed by this conveyor to the left and right sides. In a harvesting machine for underground crops, which includes a conveyor and a sieve body for discharging the crops conveyed by the conveyor backward, the sieve body is disposed below the conveyor, and the conveyor and the sieve are disposed below the conveyor. The present invention is characterized in that a lifting means is provided for raising and lowering the body substantially vertically, and one of the conveying body or the sieve body is alternatively placed at the end of the conveyor feed by the vertical raising and lowering operation.

``Function'' Therefore, since the sieve body is disposed below the conveyor body, it is possible to eliminate the conventional problem of soil falling from the sieve body accumulating on the conveyor body, and also to utilize the space below the conveyor body to remove crops. The sieve body can be easily tilted and supported at the falling angle, and since the conveyor body and the sieve body are raised and lowered almost vertically and placed opposite to the conveyor, the driving force around the conveyor can be transmitted by the rotational movement of the conveyor body or the sieve body. This eliminates the conventional problem of soil falling on the parts, and also reduces the distance from the conveyor to the conveyor and the sieve body, thereby easily preventing damage to the crops.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

Fig. 1 is a rear view of the main parts, and Fig. 2 is a side view of the whole.
It is equipped with such things as

In addition, 7 is a potato digging work machine, which is equipped with a potato digging blade 8, a potato conveyor 9, a lateral conveyor 10 for potatoes, a sieve wire 11 that is a potato sieve body, etc. are doing.

As shown in FIG. 3, the top and bottom links 14 and lower links 15 of the tractor 1 are connected and supported by the upper and lower ends of the mast 13, which is integrally fixed to the front end side of the main chassis 12 of the working machine 7, and the PTO input case 16 is connected and supported. A case stand 17 to be attached is connected to the main chassis 12 via a main beam 18 and a frame plate 19.

In addition, left and right side covers 21, 21 are connected and fixed to the main beam 18 via a PTO transmission case 20, etc., and both ends of the sprocket shafts 22a, 23a of the driving and driven sprockets 22, 23 that rotate the conveyor 9 are connected to these sides. cover 2
1,21 is supported. and the cover 2
A sliding body 24 is provided below 1 and 21 so as to be able to adjust its protrusion length, and is configured to guide the movement of the working machine 7 when it moves on the rice field.

By the way, the cross-feeding conveyor 10 and the sieve wire 11 are made to face the end of the conveyor 9 in a switchable manner, and the front pedestal 25 of the conveyor 10
The base end of the sieve wire 11 is fixed to a lower pivot plate 26 erected on the lower surface with a certain distance a, and
An upper pivot plate 27 erected on the upper surface of the front pedestal 25 of the carrier 10 is supported by a fixed mounting plate 28 of the left and right side covers 21 via a pair of upper and lower parallel links 29 and 30 so as to be able to swing vertically. A hydraulic switching cylinder 31 is interposed between the upper link 29 and the side cover 21, and the carrier 10 and the sieve wire 11 are moved up and down integrally by the expansion and contraction of the cylinder 31. Sieve line 1
When moving the conveyor 1 downward, the conveyor 10 is brought into a state facing the end of the feed of the conveyor 9, and the oysters and potatoes from the conveyor 9 are fed horizontally to one side of the left and right side of the machine, while the conveyor 10 and the sieve line 11 When the conveyor 9 is moved upward, the sieve line 11 is exposed to the feed end of the conveyor 9, and the potatoes from the conveyor 9 are formed between it and the conveyor 10. It is configured so that it flows down and is released towards the rear of the aircraft.

As is clear from the above, there is a transport conveyor 9 that transports underground crops excavated from the soil to the rear, a traverse transport body 10 that transports and releases the crops transported by this conveyor 9 to the left and right sides, and A harvesting machine for underground crops including a sieve body 11 for discharging the crops conveyed by a conveyor 9 backward. A hydraulic switching cylinder 31 is provided as a lifting means for raising and lowering the carrier 11 approximately vertically.
0 or the sieve body 11 is alternatively arranged at the feed end of the conveyor 9.

The drive input shaft 32 of the conveyor 10 is interlocked and connected to the driven sprocket shaft 23a of the conveyor 9 via a chain transmission case 33, a forward/reverse switching case 34, and an extendable flexible transmission shaft 35. The switching lever 36 also moves the transport body 1.
The feed direction of 0 can be switched between forward and reverse.

This embodiment is constructed as described above, and when the cylinder 31 is used to move the conveyor 10 and the sieve wire 11 to the downward movement position, as shown by the solid line in FIG. 10 facing the conveyor 9, the beans and potatoes sent from the conveyor 9 are fed sideways to the left or right side of the machine body, and the vegetables and potatoes are left in a line on the left or right side when the machine is running. They are then dried on the ground.

On the other hand, as shown in the virtual line state in FIG.
When the sieve line 11 is placed in the upward movement position, the sieve line 11 is placed facing the feed end of the conveyor 9, and the potatoes from the conveyor 9 are sent to the sieve line 11 through the gap a. , the air is dried on the ground by letting it flow down in a substantially straight line on the surface of the ridge at the rear of the aircraft.

In this way, without the trouble of having to attach and detach the conveying body 10 and the sieve wire 11 each time, two types of work can be performed, one to the left or right side of the body of the machine, or the other to the rear, by easily switching with a simple operation using the cylinder 31, thereby improving the versatility and work efficiency.

FIGS. 4 and 5 show another example of a modified structure, in which the left and right side covers 21 are connected to the conveyance fulcrum shaft 37 and the rotation arm via the rotation fulcrum shaft 37 and the rotation arm 38. The front frame 25 of the conveyor 10 is supported vertically and vertically via a shaft 38, and the base end of the sieve wire 11 is connected and supported to the left and right side covers 21 via shafts 39, 40 and a swing arm 41. , and a substantially intermediate portion of the sieve wire 11 is supported by a receiving portion 42a of a support rod 42 integrally provided behind the left and right side covers 21, and the rotating arm 38 and the swinging arm 41 are connected to the shafts 43, 44 and They are interlocked and connected via a link 45. As shown in FIG. 4, when the conveying body 10 is in the downward movement state in which the rotary arm 38 is held in contact with the lower stopper 46 fixed to the side cover 21, the conveying body 10 is placed at the end of the conveyor 9. While facing the robot and releasing it to the left and right sides of the aircraft, the rotating arm 38 is moved to the side cover 2 as shown in Fig. 5.
When the conveying body 10 is in an upward movement state and is held in contact with an upper stopper 47 fixed to the conveyor 9, the base end of the sieving line 11 faces the feed end of the conveyor 9, and the potatoes are moved toward the rear side of the machine body. It's about letting go.
This structure also provides the same effects as those of the above-mentioned embodiments, and in particular, in this structure, when the sieve wire 11 is in use, the conveyor 10 is stored above the conveyor 9. Tameko Sieve Line 11
Confirmation during work can be performed without any problems.

"Effect of the invention" As is clear from the above embodiments, the present invention has a transport conveyor 9 that transports underground crops excavated from the soil to the rear, and a transport conveyor 9 that transports and releases the crops transported by the conveyor 9 to the left and right sides. Transverse feed conveyor 10
and a sieve body 11 for discharging the crops conveyed by the conveyor 9 backward, in which the sieve body 11 is disposed below the conveyor body 10, and Lifting means 31 for lifting and lowering 10 and sieve body 11 substantially vertically
The conveyor 10 or the sieve body 11 is configured to be alternatively placed at the feed end of the conveyor 9 by vertical lifting and lowering, and the sieve body 11 is disposed below the conveyor 10. I will set it up,
The conventional problem of soil falling from the sieve body 11 being deposited on the conveyor body 10 can be solved, and the space below the conveyor body 10 can be used to easily support the sieve body 11 at an angle of fall of the crop. Since the sieve body 11 is raised and lowered approximately vertically and placed opposite to the conveyor 9, the conventional problem of soil falling onto the driving force transmission section around the conveyor 9 due to the rotational movement of the conveyor 10 or the sieve body 11 can be solved. , and carrier 1
The falling distance of the crops from the conveyor 9 to the conveyor 9 and the sieve body 11 can be reduced to easily prevent the crops from being damaged.

[Brief explanation of drawings]

Fig. 1 is a side view of the working machine, Fig. 2 is an overall side view, Fig. 3 is a plan view of the working machine, and Figs. 4 and 5 are explanatory drawings showing other examples of modified structures. . 9... Conveyor conveyor, 10... Conveyor, 11...
...sieve body.

Claims (1)

[Scope of utility model registration request] A transport conveyor 9 that transports the underground crops excavated from the soil to the rear, a lateral transporter 10 that transports and releases the crops transported by the conveyor 9 to the left and right sides, and the crops transported by the conveyor 9. In the harvesting machine for underground crops, the sieve body 11 is disposed on the lower side of the carrier 10, and the sieve body 11 is disposed on the lower side of the carrier 10.
0 and the sieve body 11 are provided, and a lifting means 31 is provided to raise and lower the conveyor 9 and the sieve body 11 substantially vertically, and one of the conveyor body 10 and the sieve body 11 is selectively moved to the conveyor 9 by the vertical lifting operation.
A harvesting machine for underground crops, characterized in that it is configured to be placed at the end of the feed.