JP3039898B2 - Root crop harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root crop harvesting machine which raises crops of root crops by excavating, pinches and pulls foliage, and feeds the crops sideways.

[0002]

2. Description of the Related Art Conventionally, root crops are dug up from the soil of a field by an excavating body attached to a traveling body, and before the root crops sink down and fall, the foliage is clamped and held by a carrier. A root crop harvester configured to hang and transport, and then receive and root-transport the root vegetables transported by the transport body by a horizontal transport belt is known. For example, as disclosed in Japanese Patent Application Laid-Open No. 4-287611.

[0003]

However, in the above-mentioned prior art, the root vegetables that have been dug out are suspended and transported by a transport body.
Since the root vegetables are naturally dropped on the horizontal conveyor belt and carried out, there is a problem that the root vegetables are damaged by the fall, and the root plants that naturally fall on the horizontal conveyor belt are not aligned, and the foliage of the root vegetables is not aligned. There has been a problem that tangled lateral conveyance cannot be performed continuously. In order to solve this problem, a rotatable roller is provided between the transport body and the lateral transport belt, but the foliage of root vegetables is clamped by the transport body, for example, the foliage is clamped. When the number is small, for example, the root portion hits the roller, and the reaction causes the root vegetable to drop, causing a problem. Therefore,
The present invention can change root crops to a substantially horizontal posture when transferred from a transport body to a horizontal transport belt, align foliage backwards, reliably carry out the horizontal transport belt, and transport the root vegetables to the horizontal transport belt. It is an object of the present invention to configure a root crop harvesting machine that can reduce the head difference from a belt and can continuously carry out horizontal transport of root vegetables carried out on a horizontal transport belt.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. Excavated body 2 for floating root crops in the field
And a transporter 4 that lifts and lifts the lifted root crops obliquely rearward and upward, and a root crop harvester that has a horizontal transport belt 25 that receives and root-transports the root crops transported by the transporter 4. With the end of the body 4 upward, the horizontal transport belt 2
5 are arranged one above the other so as to be overlapped downward, and
, The transport body 4 is located at a position in front of the horizontal transport belt 25.
The drive roller 20 is provided in a direction orthogonal to the transport direction of
The drive roller 20 is driven to rotate in the transport direction at the same speed in synchronization with the transport bodies 4.

[0005]

Next, the operation will be described. When harvesting crops A of root vegetables such as radish, the vibration excavating body 2 of the traveling machine 1 is moved up and down to face the ridge on which the root vegetables A have been cultivated, and as the traveling machine 1 advances. The vibrating excavating body 2 is vibrated, the ski body 3 is rocked back and forth, the root vegetables A in the ridge soil are excavated and raised, and the foliage B is transported by the transport bodies 4.4.
, And the root vegetable A is hung and transported upward afterward. Then, the lower end portion of the root vegetables A being transported comes into contact with the drive roller 20 rotating in synchronization with the transport bodies 4, and is changed to a substantially horizontal posture, and the foliage B is adjusted rearward to maintain the substantially horizontal posture. Meanwhile, the paper is unloaded from the unloading section 21 in a state of being securely aligned on the horizontal transport belt 25. Then, the root vegetables A which are sequentially delivered and aligned are transported to the left side by the horizontal transport belt 25, the foliage B is cut by the foliage cutting device 26, and the root vegetables A are transported rearward by the rear transport belt 28, 38. When the root vegetables A are fully filled in the storage device 38 after continuous processing, the storage device 38 is lowered onto the field by the crane 39.

[0006]

Next, an embodiment will be described. 1 is an overall plan view of a root crop harvester of the present invention, FIG. 2 is an overall side view thereof, FIG. 3, a plan view showing a portion of an introduction portion 5 of transport bodies 4 and 4, and FIG. It is a side view which shows the part of 20.

Referring to FIGS. 1 and 2, the structure of the root crop harvester of the present invention will be described. At the front of the traveling body 1, a frame 31 is provided horizontally, and on the right side of the frame 31, a parallel link mechanism 33 that rotates by expansion and contraction of a hydraulic cylinder 32 is provided. The vibration excavating body 2 which is oscillated by the hydraulic motor 34 through the fin is provided. At the lower end of the vibration excavation body 2, there is provided a ski body 3 that oscillates in the front-rear direction by vibrating the vibration excavation body 2 and excavates root crops A from the soil of the field. As shown in FIG. 3, above the ski body 3, there is formed an introduction portion 5 of a transport body 4, which transports the excavated root vegetable A upward and diagonally rearward and upward.

The transport bodies 4 are disposed on a transport frame 10 extending upward from the front end to the rear end in the traveling direction, and the transport frame 10 is provided on the traveling body 1. The tip of the boom 6 at the rear end of the right boom 6 is suspended through a horizontal shaft 7 so that the position thereof can be adjusted in the vertical direction. ing. Note that the vertical position adjustment and the left-right rotation adjustment of the transport frame 10 can be performed by the expansion and contraction of the hydraulic cylinder 41 and the hydraulic cylinder 42. The boom 6 protrudes rearward from a support 36 that is erected on the right side of the driver's seat 27 of the traveling body 1. The support 36 and the boom 6 hold the rear end of the transport frame 10 up and down. A turnbuckle 37 for adjusting the position in the direction and changing the inclination angle is provided.

At the rear end of the transfer frame 10, sprockets 11 are provided, and at the front end, idlers 12 are provided.
・ 12 are arranged and this front and rear left and right sprocket 1
Between the first and second idlers 12 and 11, the front guide rollers 13 and 13, the halfway guide rollers 14, and the rear guide rollers 15 and 16, which are rotatably supported on the shaft, inward in opposite directions. A pair of transport bodies 4 circulating toward each other are rotatably wound. The carrier 4
4 is driven by power from a hydraulic motor 17 disposed on the upper rear end of the transfer frame 10.
11 is rotated backward and synchronously at the same speed by rotating. Then, the carrier 4.
The introduction section 5 of 4 is formed in a substantially V-shape in plan view by idlers 12 and 12 and front guide rollers 13 and 13.

As shown in FIG. 4, a drive roller 20 is disposed below a rear portion of the transport frame 10 via a support frame 18 that can be adjusted up and down and up and down.
At least the outer peripheral portion is formed of an elastic body formed of an elastic member, and is configured to be rotationally driven in synchronization with the transport bodies 4 by a hydraulic motor 19 fixed to the support frame 18. ing. In the present embodiment, the drive roller 20 is provided on the support frame 18 supported by the transport frame 10. In addition, the drive roller 20 supports the support frame by a belt frame 22 of a lateral transport belt 25 described later, The drive roller 20 may be provided on the support frame.

At the rear end of the transport body 4, a discharge section 21 for discharging the root vegetables A is formed, and below the discharge section 21 and behind the drive roller 20,
Rollers 23.2 supported on belt frame 22
The horizontal transport belt 25 is stretched in a substantially horizontal left-right direction via the fourth belt 4. A foliage cutting device 26 is attached to an end of the horizontal transport belt 25, and a rear transport belt 28 is disposed on a side surface of the end in a rearward direction. The horizontal transport belt 25 and the rear transport belt 28 are attached to the rear of the traveling machine body 1 via a parallel link mechanism 30 that rotates up and down by the expansion and contraction of a hydraulic cylinder 43 so as to be able to move up and down.
9, and a storage device 38 for storing harvested root vegetables A is placed in the center of the work table 29. The storage tool 38 can be suspended and lowered to the ground by a crane 39 provided at the rear of the traveling body 1 on the opposite side of the side where the carriers 4 are provided.

[0012] With the root crop harvester configured as described above,
When harvesting a crop A of root vegetables such as radish, first, the vibration excavator 2 on the right side of the traveling machine 1 is moved up and down to face the ridge where the root vegetables A have been cultivated, and then run. The towing body 2 is towed by the body 1 and the hydraulic motor 34 is operated by the pressure oil supplied from the traveling body 1 to vibrate the body 2 via the link mechanism 35.
Ski body 3 swings back and forth, and root vegetables A in the ridged soil
Is dug up and rises. On the other hand, by operating the introduction portion 5 of the transport bodies 4 in the up, down, left and right positions to adjust the position so as to match the foliage B of the root vegetable A to be dug, and when the hydraulic motor 17 is started, the hydraulic motor 17 moves inward in opposite directions. The circulating transport bodies 4 circulate rearward at the same speed in synchronization with each other. Thus, before the emerged root vegetables A sink and fall down, the foliage B is gathered at the center by the introduction part 5 of the transport bodies 4.4, and is pinched by the transport bodies 4.4, so that the root vegetables A are suspended. Conveyed upward and rearward.

The lower end of the suspended and transported root vegetable A comes into contact with the drive roller 20 which is driven to rotate in synchronization with the transport bodies 4.4, and the foliage B is pinched by the transport bodies 4.4. ,
By being transported, root vegetables A are changed to a substantially horizontal posture,
While maintaining the substantially horizontal posture by trimming the foliage B, the root vegetables A are transported by the carrier 4 and the drive roller 20 to the discharge section 2.
From No. 1 is carried out in a state in which it is securely aligned on the horizontal transport belt 25. In this manner, the root vegetable A is changed to a substantially horizontal posture during the suspension conveyance, and is sent backward by the drive roller 20 driven by the hydraulic motor 19, thereby affecting the holding force and the conveyance force of the conveyance bodies 4. And the roots A are held in a substantially horizontal position by the drive rollers 20.
It is not necessary to provide a large difference in height between the carry-out section 21 and the horizontal transport belt 25. In addition, the transport body 4 and the drive roller 20 that continuously carry out the root vegetable A onto the horizontal transport belt 25 are provided.
Are synchronized, the root vegetables A are reliably aligned on the horizontal transport belt 25 with the foliage B facing backward,
There is no fear of dropping from the horizontal transport belt 25.

Then, the root vegetables A which are sequentially carried out and aligned are transported to the left side by the horizontal transport belt 25, the foliage B is cut by the foliage cutting device 26, and the root vegetables A are transported rearward by the rear transport belt 28. , By hand (or by the post-conveying belt 28
(As it is). When the root vegetables A are fully filled in the storage device 38 after continuous processing, the storage device 38 is lowered onto the field by the crane 39. In addition, the ski body 3 is adjusted up and down according to the type of root vegetables such as radish and the degree of growth thereof, the transport body 4 that holds the foliage is adjusted up and down and right and left, and the drive roller 20 that changes to a horizontal posture is adjusted up and down and up and down. Thereby, various root crops of various sizes can be dug up securely, suspended and transported, the posture can be changed, and settings corresponding to the harvesting operation of lateral transport can be performed in advance.

[0015]

As described above, the present invention has the following advantages. First, the end of the carrier 4
The section above, duplicate starting end of the transverse conveyor belt 25 downward
The horizontal transport belt 2 is located below the transport body 4.
5, a direction perpendicular to the transport direction of the transport body 4 at a position in front of
Is provided with a driving roller 20, and the driving roller 20 is transported.
Rotating in the transport direction at the same speed in synchronization with body 4
By moving the root vegetables during transportation, the horizontal transportation bell
Can be changed to a substantially horizontal position before placing on
Before placing the root vegetables on the horizontal transport belt 25,
After the horizontal posture, the horizontal transport belt 2
5 can be carried out. Second, the root vegetables can be transferred from the transport body 4 to the horizontal transport belt 25 with a simple structure. Third, since the root crops can be transferred from the transport body 4 to the horizontal transport belt 25 with a simple structure, the foliage cutting work and the root crop storage work in the next process can be easily performed. Therefore, the harvesting operation can be stabilized. Fourth, the rotation of the drive roller prevents the root crops from being damaged, and the root crops receive less resistance when they come into contact with the drive roller. It is no longer necessary to increase the foliage pinching force and the conveying force. Fifth, by forcibly driving the conveyance body and the outer peripheral speed of the drive roller substantially in agreement with each other, the root crop does not fall on the drive roller, and the conveyance operation can be reliably performed.

[Brief description of the drawings]

FIG. 1 is an overall plan view of a root crop harvester of the present invention.

FIG. 2 is an overall side view of the same.

FIG. 3 is a plan view showing a portion of an introduction section 5 of the transport bodies 4. FIG.

FIG. 4 is a side view showing a portion of the transport roller 20.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling body 2 Vibration excavation body 3 Skirt body 4 Conveyor body 10 Conveyance frame 18 Support frame 19 Hydraulic motor 20 Drive roller 21 Belt frame 25 Horizontal conveyance belt A Root vegetable B Foliage

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] 1. a digging body 2 for floating root crops in a field;
In a root vegetable harvesting machine having a transport body 4 that lifts and lifts the raised root vegetables obliquely rearward and upward, and a horizontal transport belt 25 that receives and root-transports the root vegetables transported by the transport body 4, the transport body 4 the end portion upward of the starting end of the transverse conveyor belt 25 overlap downward vertically disposed, beneath the carrier 4
On the other hand , a driving roller 20 is provided at a position in front of the horizontal conveyance belt 25 in a direction orthogonal to the conveyance direction of the conveyance body 4, and the driving roller 20 is synchronized with the conveyance bodies 4 and 4 in the conveyance direction at the same speed. A root crop harvester characterized by being driven to rotate.