JP2833927B2 - 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 harvester, and more particularly to a root crop such as radish, ginseng, burdock, etc., which is dug up and harvested.

[0002]

2. Description of the Related Art Conventionally, as a harvester of this type, for example, as described in Japanese Patent Application Laid-Open No. 2-222609, a digging body for digging root vegetables is provided in a machine frame, and this digging body is provided. A conveyor for conveying root vegetables is provided at the rear of the
This conveyor has a pair of endless chains that can move freely so that the inner circling portions that pinch and convey the excavated root vegetables move closer to each other and move at the same speed. A configuration is known in which opposing inner circulating portions are provided with guides for supporting the inner circulating portions and guiding the transition thereof. Then, the root vegetables are dug up by the excavating body, and the root vegetables are transported to the transport conveyor in a cultivated state, and the root vegetables are sandwiched between the pair of endless chains of the transport conveyor facing the inner circling portions. And carry it out.

[0003]

According to the configuration described in the above publication, the root crops are pinched and conveyed in a planted state at opposing inner revolving parts of a pair of endless chains. Since the opposed inner circling portions of the pair of endless chains and the sprocket that suspends the pair of endless chains are exposed, root crops are sandwiched between the opposed inner circling portions.
When, or foliage or matters that hanging the root vegetables are caught in the sprocket and the endless chain in the middle feed transportable to be nipped Ru is conveyed between opposing inward times Gyobu continuously conveying the root vegetables in a stable state or it could not be, can damage the root vegetables, work UeYoshimi Mashi ward, there is a problem in that.

In view of the above, the present invention has been made in view of the above points, and covers the upper part of the inner circulation part of a pair of endless circulation bodies, so that the roots of foliage and foreign matter are endlessly rotated. It can prevent the root crops from being caught in the guide wheels and endless revolving bodies that guide the row crops, can continuously transport the root crops in a stable state, do not damage the root crops, and It is an object of the present invention to provide a root crop harvester that can ensure safety.

[0005]

According to the present invention, there is provided a root crop harvesting machine, comprising: a machine frame; a digging body provided in the machine frame for digging root vegetables; a conveyor frame is connected to the machine frame to form a guiding path for the draft of the root vegetables, each for transporting clamp the respective times row freely provided the digging caused the root crops relative to the conveyor frame A pair of endless revolving bodies that move the inner revolving parts close to each other and move at the same speed along the guide path, and support the opposing inner revolving parts of the pair of endless revolving bodies provided on the conveyor frame. And a guide for guiding the transition, and the conveyor frames are opposed to each other.
Te solid has a constant frame members, forming the guide path at opposing both edge portions of the opposite frame <br/> arm member, wherein
And Jikuka rotatably Kaigyo freely the guide wheels that suspending each of said pair of endless rotary line body at both end portions of the opposite frame member, the opposite frame member along the guide path
Provided opposed edges and the pair of the resilient cover covering the between the opposed inner times rows of endless rotary line body respectively, before
Each elastic cover has one end fixed to the frame member.
With the other end facing the inner circuit
It has a curved portion curved downward .

[0006]

In the root crop harvesting machine of the present invention, the machine frame is connected to, for example, a three-point link mechanism of a tractor, and the excavated body connected to the machine frame faces the ridges of the root vegetable row to be harvested. Also,
The pair of endless revolving bodies are driven, and the opposing inner revolving parts are moved at the same speed in the same direction along the guide path of the conveyor frame in a state of being close to each other. When the machine is towed by the tractor, the root crops of the ridge are dug up sequentially by the excavator, and the root crops are sequentially loaded into the guideway of the conveyor frame while being grown. The pair of endless revolving bodies are sandwiched between opposing inner revolving parts, and are sequentially conveyed by the opposing inner revolving parts and sequentially unloaded from the unloading part.

At this time, the frames facing each other along the guide path
Since between the opposed edges and opposed inner times line portions of the pair of endless rotary row of members are respectively covered with the elastic cover, hanging foliage and miscellaneous products of root crops are guide wheel Ya It is prevented from getting caught in the endless revolving body, and the elastic cover
The downward curved part is an escape recess to avoid root crop foliage
Root vegetables to avoid foliage is continuously conveyed in a stable state Te, without root crops are damaged, also work on non
Convenience is also prevented . Also, opposing inner circling portions of the pair of endless circulating bodies are supported by respective guides, and
Since the transition is guided, the opposite inner circling portions of the pair of endless circulating bodies are prevented from being twisted or meandering, and therefore, the root vegetables are reliably transported at the opposing inner circling portions. Is done.

[0008]

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

In FIGS. 1 and 2, reference numeral 1 denotes a machine frame. The machine frame 1 has a main frame 2 which is long in the left-right direction.
A transmission 4 having an input shaft 3 is provided on one side, and left and right lower arms 6 each having a lower pin 5 at a front end thereof project from one end and an intermediate portion of the main frame 2 to the front. The lower arm 6 is connected to a mast 7 projecting forward from the upper portion of the mission 4 by a stay 8. A support frame 11 parallel to the main frame 2 is fixed to a connecting piece 9 at the rear end of the mast 7 and a connecting piece 10 connected to the rear end of the lower arm 6 at one end.

At the other end of the main frame 2 and the support frame 11, a pair of left and right plate-like support frames 12 extending in the front-rear direction are continuously provided at a predetermined interval. An output end of an output shaft 13 of the transmission 4 rotatably inserted into the main frame 2 is rotatably supported between the support frames 12, and a cam 14 is provided on the output end of the output shaft 13. It is fixed. Also,
The tip of a vibrating arm 17 extending in the front-rear direction with a support shaft 16 is pivotally mounted on the upper part of the protruding piece 15 engaged with the cam 14 so as to be rotatable in the vertical direction. Part horizontal axis 18
The rear ends of the pair of left and right plate-shaped support frames 12 are rotatably supported in the vertical direction.

Further, a column is provided at the rear end of the vibrating arm 17.
The upper end of the column 19 is fixed by a plurality of bolts and nuts 20 so as to be vertically adjustable and detachably attached.
A digging body 21 is fixed to the lower end of the slab. This excavation body 21
Is formed by fixing a plurality of tips 22 having a mountain-shaped tip portion in parallel in the left-right direction, and each of the tips 22 is fixed to the lower end of the column 19 with a slight inclination toward the lower front. . A support arm 24 on which a grounding wheel 23 is rotatably mounted is mounted at an intermediate portion of the support frame 11 so as to be vertically adjustable by an adjustment mechanism 25.

Next, left and right arms 26 are integrally and protruding rearwardly and parallel to the support frame 11 located between the support arm 24 and the plate-shaped support frame 12 at the inner side. The front ends of the left and right connecting arms 28 are connected by connecting pins 29 to the left and right portions of the hitch frame 27 connected between the rear ends of the left and right arms 26, and the transport conveyor 30 is connected to the left and right connecting arms 28. Are linked. The transport conveyor 30 has a left and right connecting frame 31 connected to the left and right connecting arms 28 in a state where the left and right connecting arms 28 are inclined at a predetermined interval in a parallel and rightward forward direction, A conveyor frame 33 is fixed to a plurality of support pieces 32 fixed to the connection frame 31 and the right connection arm 28 of the left and right connection arms 28. The conveyor frame 33 has one end portion on the right side in the traveling direction. The excavation body 21 is disposed so as to face the rear of the excavation body 21, and the other end of the excavation body 21 is
It is arranged on the left side in the traveling direction on the opposite side.

The conveyor frame 33 has front and rear facing frame members 35 connected at the same level by a plurality of inverted U-shaped connecting members 34. The front and rear frame members 35 are connected from one end to the other end. It is arranged and fixed in a state in which the other end is gradually inclined toward the portion. Further, between the one end portions of the front and rear frame members 35, there is formed a carry-in portion 36 which is opened in a substantially V-shape in plan view facing the rear of the excavated body 21, and following the carry-in portion 36, A guide path 37 is formed by the front and rear frame members 35 to guide the root vegetables toward the other end. Sprockets 38 as guide wheels are rotatably mounted on both ends and intermediate portions of the front and rear frame members 35, respectively.
A plurality of guide rollers 39 are rotatably mounted between them,
Guide members at both ends and intermediate portion of the front and rear frame members 35
In 38, an endless chain 40 as a pair of endless revolving bodies is suspended so as to be able to revolve inward in opposite directions to each other in a state where the respective inner revolving portions 41 are close to each other, and The middle of the endless chain 40 is rotatably supported by the respective guide rollers 39.

A motor 42 is provided at the upper end of the other end of the front and rear frame members 35 for rotating the sprockets 38 at the other end. The pair of endless chains are driven by the output from the motor 42.
40 is such that each sprocket 38 and each guide roller 39 are moved at the same speed in the same direction along the guide path 37 in a state where the respective inner circling portions 41 are close to each other, and The root vegetables are sandwiched and conveyed between the opposing inner circulation sections 41. Thus, the pair of endless chains 40 are disposed vertically and have a large number of links.
43, the upper and lower links 43 are formed in an endless manner with a number of longitudinal axes 44 rotatably supporting the respective overlapping portions in a tandem state and rollers 45 rotatably mounted on the longitudinal axes 44. ing. In the upper and lower links 43, an engagement piece 46 is horizontally protruded from an inner portion of every other upper and lower link 43, and the link 43 having the engagement piece 46 is provided. At the outer part of each link 43, a mounting piece 47 is vertically protruded, and a large number of holding pieces 48 made of an elastic member having a predetermined length are fixed to each mounting piece 47 with bolts and nuts 49. Then, a pair of endless chains 40
A series of clamping bands 50 are formed on the entire outer peripheral portion of the device.

Next, along both side edges of the guide path 37
Te, elastic cover 51 which covers the space between the opposed inner times line portion 41 of the opposing both edge portions and front Symbol pair of endless chains 40 of the front and rear frame members 35 are respectively provided, these bullets
One end 51a of the cover 51 is formed on both edges of the frame member 35.
Parts each integrally fixed to at anchoring member to the inner portion and the upper portion of the upper portion of the mounting piece 47 opposed inner times line portion 41 of the other end portion 51b is the pair of endless chains 40 of this elastic cover 51 It is placed so as to face the link 43, respectively. Thus, these elastic cover 51 has a curved and curved portion 51c so as to protrude downwardly between the formed of an elastic member one end portion 51a and the other end portion 51b of the rubber plate I have.
Then, so as to cover the space between the opposed inner times line portion 41 of the pair of endless chains 40 that are successively shifted frame member 35 by the elastic cover 51.

At predetermined positions of the front and rear frame members 35, a plurality of guide mechanisms 52 are provided for guiding the transition of the inner circling portions 41 of the pair of endless chains 40 facing each other. The guide mechanism 52 has a lever 54 whose intermediate portion is rotatably supported in a horizontal direction by a support shaft 53 between upper and lower frame plates 35a and 35b of the front and rear frame members 35. A substantially intermediate portion of a guide 56 is rotatably mounted on a U-shaped connecting portion 55 formed at the end of the connecting portion 55 with a bolt / nut 57 so as to be rotatable in the horizontal direction. The guide 56 includes upper and lower guide plates 58a and 58b which are formed to be elongated in the left-right direction by plate-like members.
The upper guide plate 58a is formed by gradually thinning the tip portion, and the lower guide plate 58b is formed by the upper guide plate 58a.
a protrudes downward from the middle part of a and is formed in parallel with the upper guide plate 58a. And this opposing guide
The upper guide plate 58a of 56 is located between the upper and lower engagement pieces 46 of the inner circling portion 41 of the pair of endless chains 40, and sequentially supports the upper and lower engagement pieces 46 and controls the transition. The lower guide plate 58b sequentially supports the lower mounting piece 47 and the lower end of each longitudinal axis 44 of the inner circling portion 41 of the pair of endless chains 40 in order, and It guides the transition.

A coil-shaped spring 60 is stretched between the rear end of the lever 54 and a pin 59 projecting from the lower frame plate 35b. The inner guides 41 of the pair of endless chains 40 are urged by the respective guides 56 so as to approach each other.

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

The left and right lower pins 5 and the mast 7 of the machine frame 1 are connected to the three-point connecting portion of the three-point link mechanism of the tractor, and the input shaft 3 of the transmission 4 is connected to the power take-off shaft of the tractor by the power transmission shaft. Connect through.

Next, the excavator 21 on the right side of the machine frame 1 is arranged by the tractor so as to face the ridge on which the radish A as root vegetables is grown, and the input shaft 3 is rotated by the output from the power take-off shaft of the tractor. And the output shaft 13 of the transmission 4 is rotated, and the cam 14 at the output end of the output shaft 13 is rotated,
With this cam 14, the vibrating arm 17 and the column 19 are rotated up and down with the horizontal axis 18 as a fulcrum, and the excavated body 21 at the lower end of the column 19 is vibrated up and down. When the motor 42 is rotated, a pair of endless chains 40 facing each other between the respective sprockets 38 of the front and rear frame members 35 are rotated inward in opposite directions by the output from the motor 42,
In addition, opposing inner circulating portions of the pair of endless chains 40
In the state where 41 is close to each other, the same speed is shifted along the guide path 37 in synchronization with each other.

When the tractor is towed by the tractor, the ridge soil is softened and swelled by the vibration excavating action of the excavating body 21, and the radish A is sequentially raised and dug up. Prior to this, they are sequentially loaded into the loading section 36 between the pair of endless chains 40 of the transport conveyor 30. In addition, the upper part of the radish A or the base of the foliage B, which is carried into the carry-in part 36, is sandwiched between the inner circling parts 41 of the pair of endless chains 40, and travels from the carry-in part 36 at one end along the guide path 37. The radish A is conveyed while being sequentially suspended upward toward the discharge section 61 at the other end, and the radish A is transferred to the discharge section 61 at the other end.
After the radish A is excavated in the previous step, the radish A is sequentially carried out to the left side in the traveling direction, that is, to the side opposite to the excavated body 21 on the right side.

In this case, the opposite frames along the guideway
One end 51a is provided between the opposing inner edge portions of the pair of endless chains 40 and the opposite end portions of the pair of endless chains 40.
35 and fixed at the other end 51b.
It an elastic cover 51 which is disposed to face the side of times the line portion 41
, And the hanging foliage B of the radish A and the foreign matter are covered with the sprocket 38 and the inner circulation part 41 of the endless chain 40.
Is prevented from being caught in, without the foliage B is cut, is bent portion 51c of the elastic cover 51 of radish A foliar B
Smoothly continuously conveyed in a state of avoiding radish A foliar B becomes relief recess stable to avoid, without such radish A is damaged in the course this transport, also on the working
Is also prevented .

A pair of endless chains 40 are provided with a series of holding bands 50 composed of a large number of holding pieces 48 on the outer side thereof. The bands 50 are sequentially shifted while facing each other, so that the upper part of the radish A or the base of the foliage B is automatically clamped between the opposing clamping bands 50, and the radish A gradually moves upward while being clamped. Sequential unloading section while suspended
It is carried out from 61. Further, the opposing inner revolving portions 41 of the pair of endless chains 40 are urged and supported by guide plates 58a and 58b above and below the respective guides 56 of the guide mechanism 52, so that each of the respective endless chains 40 is pinched. The radish A is securely held by the opposing holding bands 50 made of the pieces 48, and a pair of endless chains are
The twisting or meandering of the inner revolving portion 41 of 40 is prevented, so that the radish A does not drop during transport.

In the above-described embodiment, the case where the endless chain 40 is used as a pair of endless rotating bodies has been described. However, the present invention is not limited to this, and an endless V-belt may be used as the endless rotating body. In this case, the endless V-belt may use a V-pulley as a guide wheel, and may be suspended around the V-pulley.

[0025]

According to the present invention, to form a guide path for the draft of the root vegetables in relative to fixed frame member, the
A pair of endless revolving bodies are respectively suspended between sprockets mounted on both ends of opposed frame members so as to be rotatable, and the root vegetables of the pair of endless revolving bodies are sandwiched and conveyed. The circulating sections are brought close to each other and moved at the same speed along the guide path , and the relative sliding is performed along the guide path .
Since that opposed edges of the frame member and between said opposed inner times line portions of the pair of endless rotary line member provided with a resilient cover covering respectively, opposite the elastic cover
Opposing inner revolving parts of the frame member and the pair of endless revolving bodies
Continuous state between can be reliably cover the foliage and matters of root vegetables can be prevented from being caught in the guide wheels or endless rotary line member for guiding the endless rotary line body, root crops stable with Ru can be transported to. In addition, the opposing inside times line section
Since Luke bar be coated between the frame member has a resilient, even if such opposing inner times row unit sequentially shifts along the elastic cover moves up and down, sufficiently corresponding to the vertical movement As a result, the space between the inner circling portion and the frame member can be reliably covered. The elastic cover has one end
To the frame member and the other end to the inside
, So the distance between the opposing inner circulation parts
Even if it changes depending on the diameter of root vegetables, it is enough to change the interval
And the elastic cover curves downwards
The curved part avoids the roots and foliage of root vegetables.
It becomes a recess for escape, avoiding foliage and smoothing root vegetables
Can be transported.

[Brief description of the drawings]

FIG. 1 is a plan view of a root crop harvesting machine showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged plan view of a part of the transport conveyor.

FIG. 4 is a sectional view taken along the line aa in FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Machine frame 21 Excavated body 33 Conveyor frame 35 Frame member 37 Guideway 38 Guide wheel 40 Endless revolving body 41 Inner revolving part 51 Elastic cover 51a One end of elastic cover 51b The other end of elastic cover 51c Curve of elastic cover Part 56 Guide A Root vegetables

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] And 1. A machine frame, and Okoshitai drilling causes digging root vegetables provided in the machine frame, the HoOkoshi of located behind portion is connected to the machine frame guide for the draft of the root vegetables The conveyor frame having a path formed therein, and the respective inner circulating portions provided to be rotatable relative to the conveyor frame and sandwiching and transporting the excavated root crops are brought close to each other to the guide path. A pair of endless revolving bodies that move at the same speed along the same, and a guide that is provided on the conveyor frame and supports the opposing inner revolving parts of the pair of endless revolving bodies, respectively, and guides the transition, said conveyor frame has a relative to fixed frame member, both edges facing in the opposite frame members
The guide path is formed by a portion, and guide wheels respectively rotatably suspended around the pair of endless revolving bodies are rotatably mounted on both ends of the opposed frame member, and the guide wheels are rotatably mounted along the guide path . And the opposing frame members face each other.
Opposing inner circulating portions of the two end portions and the pair of endless circulating bodies
Respectively the covering to the elastic cover between the respective elastic cover fixed to one end portion to the frame member
And with the other end facing the inner circuit
A root crop harvester characterized by having a downwardly curved portion .