JPH05123023A - Conveyor for root vegetables - Google Patents

Abstract

PURPOSE:To obtain the subject apparatus, equipped with endless belts stretched between pulleys, tension rollers, having annular recessed grooves on the outer peripheral parts and brought into contact with the belts, endless protruding ridges engaged with the grooves and endless belts for nipping root vegetables provided on the outer peripheral parts without dropping the vegetables during conveying. CONSTITUTION:In a conveyor for conveying root vegetables by nipping the rotor vegetables such as a Japanese radish or a carrot dug up with a harvester for the root vegetables, endless belts 25 and 26 are revolvably stretched in a rear rising state between front and rear pulleys 23 and 24 and tension rollers 30 are brought into contact with mutually oppositely and adjacent revolving inner revolving parts 27 and 28 of the pair of the endless belts 25 and 26. Annular recessed grooves 33 of nearly V-shaped cross section are formed in the respective outer peripheral parts of the front and rear pulleys 23 and 24 and the tension rollers 30. Endless protruding ridges 35 of nearly V-shaped cross section engaging the annular recessed grooves 33 of the pulleys 23 and 24 and the tension rollers 30 are formed on the inner peripheral parts of the endless belts 25 and 26 and vertical endless belts 36 for nipping the root vegetables (A) between the respective mutually opposite inner revolving parts 27 and 28 and conveying the root vegetables are formed on the outer peripheral parts of the endless protruding ridges 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root vegetable conveying device,
For example, radish, carrots dug up in a root vegetable harvester,
The present invention relates to a product that holds and conveys root vegetables such as burdock root.

[0002]

2. Description of the Related Art Conventionally, as a root vegetable conveying device of this type, as disclosed in, for example, Japanese Patent Publication No. 3-2041, it is arranged in parallel at right and left with a predetermined interval. It has a frame rod installed, and pulleys are rotatably provided at the front and rear ends of the left and right frame rods, respectively. A pair of endless belts having a shape are rotatably suspended, and the outer peripheral surfaces of a plurality of tension rollers arranged in a zigzag pattern are respectively brought into contact with the vertical surface portions of the inner traveling portions facing each other of the pair of endless belts. Of the endless belts are biased toward the inner traveling parts of the endless belts.

[0003]

In the structure described in the above publication, root vegetables excavated by the excavation body are sandwiched by the inner traveling parts of the pair of endless belts facing each other, and the root vegetables are suspended. At this time, the inner peripheral portions of the pair of endless belts are engaged with the front and rear pulleys by surface contact, and the pair of endless belts are also conveyed. Since it is engaged with the inner side surface of the inner traveling portion of the belt by surface contact, the weight of the root vegetables and the distance between the inner traveling portions of the pair of endless belts that convey the root vegetables are long and Combined with the fact that the endless belts are inclined, the inner running parts of the pair of endless belts sandwiching the root vegetables vibrate vertically and a twisting phenomenon occurs, causing the inner running parts of the pair of endless belts to be under tension. When the root vegetables are removed from the rollers, the root vegetables are being conveyed between these inner circulation parts. In may fall, and there is concern that the pair of endless belts is out of each of the front and rear pulleys, there is a problem that.

Therefore, the present invention has been made in view of such a point, and the pair of endless belts is stable in a state in which the folded-back portions and the intermediate portions of the inner traveling portions facing each other are securely supported. In addition to being able to rotate, it is possible to reliably sandwich and convey root vegetables between the inner traveling portions that face each other of the pair of endless belts, and the inner traveling portions that oppose each other during the transportation of this root vegetable It is possible to reliably prevent it from vibrating up and down and twisting, and to prevent the pair of endless belts from coming off the front and rear pulleys and tension rollers. Can be reliably prevented,
It is an object of the present invention to provide a root vegetable transporting device that can smoothly move the opposing inner traveling parts that sandwich the root vegetables.

[0005]

The root vegetable transporting apparatus of the present invention is provided with a pair of frontward and rearward pulleys, which are slanted rearwardly and are rotatably suspended so that root vegetables can be sandwiched and transported. A pair of endless belts that move toward each other in the same direction in close proximity to each other, and a rotatable tension roller that is in contact with the inner portions of the intermediate portions of the inner traveling portions that face each other of the pair of endless belts, respectively. The tension roller is provided with a spring for urging the tension roller toward the inner traveling portion of each endless belt, and the front and rear pulleys and the tension roller each have an annular groove having a substantially V-shaped cross section on their outer peripheral portions. The pair of endless belts has an endless ridge having a substantially V-shaped cross section, which engages in an annular groove formed in the front and rear pulleys and the tension roller on an inner peripheral portion of the endless belt. Ridged The peripheral portion is obtained by forming a vertical-shaped endless belt for conveying nip the root crop between the respective opposing inner times Gyobu.

[0006]

According to the root vegetable conveying apparatus of the present invention, the pair of endless belts have the V-shaped cross section in which the V-shaped endless ridges formed on the inner peripheral portions of the pair of belts are formed on the front and rear pulleys. The endless belt formed on the outer peripheral portion of the endless ridge is rotated in a vertical state by being engaged with an annular recess having a V-shaped cross section formed in the tension roller in the intermediate portion of the annular recess and the inner traveling portion. Thus, the respective inner traveling parts are stably moved inward in the same direction in the state of being close to each other. Therefore,
The opposing inner traveling portions of the pair of endless belts are vertically vibrated and smoothly moved without being twisted, and are sandwiched between the opposite endless belts which are sequentially shifted vertically to the opposite inner traveling portions. The root vegetables are smoothly transported toward the unloading section without dropping during transportation regardless of the weight and the length of the endless belt.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 4, reference numeral 1 denotes a harvester main body, which is a main frame 2 which is long in the left-right direction, and a horizontal direction which is connected to the main frame 2 and is arranged in parallel in the rear portion. Has a long connecting frame 3, and the main frame 2 is provided with a mission 5 that rotatably projects the input shaft 4 forward and is connected to a three-point suspension mechanism of a tractor (not shown). The point connecting portions 6 are integrally projected forward. In addition, a supporting frame 7 which is integrally projected toward the rear is provided at a substantially middle portion of the connecting frame 3.
The height of the grounding wheel 8 is vertically adjustable via the.

Next, a connection frame 9 is provided between one ends of the main frame 2 and the connection frame 3, and a vibration mechanism 10 is provided on the connection frame 9. A column-shaped vibrating body 11 which is long in the up-and-down direction is continuously arranged so as to be able to vibrate in the front-rear direction, and at the lower end portion of the vibrating body 11, a plurality of metal tips whose tip portions are formed in a mountain shape are arranged side by side in the left-right direction. The excavation body 12 is integrally fixed to the front lower part with a slight inclination. The vibrating mechanism 10 is driven by the output from the mission 5, and vibrates the excavated body 12 in the front-back direction via the vibrating body 11.

Further, a support frame 13 which is positioned between the supporting frame 7 and the connecting frame 9 and which is parallel to the connecting frame 3 and which is composed of left and right parallel arms is integrally protruded rearward and downward. A root vegetable transport device 16 is connected to the hitch metal fitting 14 fixed to the rear end of the arm 13 via left and right arms 15 in a state of being inclined rearward and upward.

The root vegetable conveying device 16 is provided with a conveyor frame 17 on the front side connected to one arm 15 located on the rear end and the outer side of the left and right arms 15, and on the rear side of the conveyor frame 17. A rear side conveyor frame 20 is integrally connected to the front side conveyor frame 17 with a connecting tool 19 at a predetermined interval 18 along the rear side conveyor frame 20. It is arranged and fixed in such a manner that it is long from one end facing the rear part of the raised body 12 toward the other end opposite to the dug body 12, and is gradually inclined in the same plane as it goes to the other end. At the same time, one end of the conveyor frame 17 on the front side and one end of the conveyor frame 20 on the rear side form a carry-in portion 22 that is open to face the rear side of the excavated body 12.

In addition, the front and rear conveyor frames 17, 20
The pulleys 23 and 24 are rotatably supported by vertical shafts 23a and 24a, respectively, at one end and the other end of the pulleys 23 and 24, respectively. A pair of endless belts 25, 26 made of an elastically deformable member such as rubber are rotatably suspended between 24, and the pair of inner endless traveling portions 27, 28 of the pair of endless belts 25, 26 face each other. Are moved in the same direction while being close to each other. Further, the front and rear conveyor frames 17 and 20 each have a vertical shaft 29 at which a bent portion of a rotating arm 29 formed in a substantially V shape in a plan view is formed at an intermediate portion thereof.
It is rotatably supported in the horizontal direction at a, and the front and rear rotating arms 29 are provided at the front end thereof with the endless belts 25 and 26, respectively.
The tension roller 30 abutted on the inner portion of the intermediate portion of the inner traveling portions 27, 28 is rotatably mounted via a vertical shaft 31, and the rear end portions of the front and rear rotating arms 29 are provided. The tension roller 30 is attached to each of the endless belts 25 and 26.
A spring 32 is urged so as to contact the inner side of the inner traveling parts 27 and 28.

The tension rollers 30 abutted on the inner portions of the intermediate portions of the inner traveling portions 27, 28 of the endless belts 25, 26 and the pulleys 23, 24 on both ends of the front and rear conveyor frames 17, 20, There is a difference that the tension roller 30 is formed smaller than the size of the pulleys 23 and 24 at both ends, but since both are formed in a similar shape, the pulleys 23 and 24 and the tension roller 30 are formed. The structure of and will be described with respect to the tension roller 30 shown in FIGS. 2 and 3. That is, the pulleys 23 and 24 and the tension roller 30
As shown in FIGS. 2 and 3, an annular groove 33 having a substantially V-shaped cross section is formed at an intermediate portion in the vertical direction of each outer peripheral portion, and the annular groove 33 is opened to the outside of the annular groove 33. Vertical engagement surfaces 34 are formed on the outer peripheral portions of the upper and lower portions following the opening edge.

As shown in FIGS. 2 and 3, the pair of endless belts 25 and 26 are formed on the inner circumferences of the pulleys 23 and 24 at both ends and the outer circumference of the tension roller 30, respectively. An endless ridge 35 having a substantially V-shaped cross section that engages with the annular groove 33 is formed, and the outer periphery of the endless ridge 35 has outer peripheries of the pulleys 23 and 24 and the tension roller 30 at both ends. The upper and lower vertical engagement surfaces 34 formed on the
Engaging with each other and their respective inward traveling parts 2
An endless belt 36 for sandwiching and carrying root vegetables between 7 and 28 is integrally formed vertically.

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

The three-point connecting portion 6 of the harvester body 1 is connected to the three-point suspension mechanism of the tractor, and the input shaft 4 of the mission 5 is connected to the PTO shaft of the tractor via a power transmission shaft (not shown). To do. Then, the harvester is moved by the tractor, and the excavated body 12 on the right side is arranged so as to face the ridge on which the root vegetable A such as radish in the field has been grown.

Then, while the tractor pulls and advances the harvester, the output from the PTO shaft of the tractor actuates the mission 5 via the input shaft 4, and the output from the drive mechanism of the root vegetable transfer device 16 causes a pair of The endless belts 25 and 26 are attached to the inner traveling parts 27,
It is rotated so that 28 moves from one end facing the excavated body 12 toward the other end at the same speed. At this time, the pair of endless belts 25 and 26 are guided and rotated by the front and rear pulleys 23 and 24 and the tension roller 30, respectively, and the endless belts formed on the pair of endless belts 25 and 26 respectively. Ridge 35
Are the front and rear pulleys 23, 24 and tension rollers
Since they are engaged with each other in the annular recessed groove 33 formed in the circular groove 33 and are rotated, the respective endless belts 36 integrally formed with these endless protrusions 35 are rotated in a vertical state, and these endless bands are also rotated. Obi 36
In the inner traveling parts 27 and 28, they are relatively close to each other in the vertical state and are moved in the same direction at the same speed.

Then, the vibration mechanism 10 is operated by the output from the mission 5, and the vibrating body 11 is vibrated in the front-rear direction in association with the vibrating action of the vibrating mechanism 10, and the lower end portion of the vibrating body 11 is dug. The oscillating body 12 is vibrated in the soil, and due to the vibration excavation action of the digging body 12, the soil is gradually softened upward and the root vegetables A are sequentially floated and dug up, and each root vegetable A sinks. A pair of endless belts
25, 26 are sequentially carried into the carry-in section 22 of the inner traveling sections 27, 28 facing each other.

When the root vegetables A are successively carried into the carry-in section 22, the foliage B of these root vegetables A are placed between the opposed vertical endless belts 36 of the inner traveling sections 27, 28 facing each other. The root vegetables A and the foliage B are sandwiched in sequence, and the conveyor frame is located at the front and rear.
The root vegetables A are sequentially conveyed toward the carry-out end portion at the other end along the space 18 between the 17 and 20, and the root vegetables A are conveyed in a suspended state in which they are gradually lifted toward the carry-out end portion. That is, the pair of endless belts 25 and 26 are circulated, and the endless belts formed vertically on the outer circumferences of the belts.
36 are turned at the same speed in the same direction in close proximity while facing each other at the inner turning portions 27, 28 facing each other,
In addition, since the endless protrusions 35 formed on the inner peripheral portions of the respective endless protrusions 35 engage with the annular recessed grooves 33 formed on the front and rear pulleys 23, 24 and the tension roller 30, respectively, the pair of endless protrusions 35 is rotated. The endless belts 25 and 26 are circulated in a stable state, so that the root vegetables A are successively carried into the carry-in section 22, and the foliage B of these root vegetables A are sequentially opposed to each other.
The paper is conveyed in a suspended state in which it is automatically sandwiched by and is gradually lifted toward the carry-out end, and is carried out from the carry-out end.

At this time, the pair of endless belts 25 and 26 are rotated by engaging the endless ridges 35 formed on the endless belts 25 and 26 with the front and rear pulleys 23 and 24 and the annular groove 33 of the tension roller 30, respectively.
Each tension roller 30 in which the intermediate portion of the inner traveling portions 27, 28 of the endless ridge 35 facing each other is engaged with the annular groove 33 is
A coil spring 32 is pivotally attached to the end of a rotatable arm 29 which is rotatable about a, and each of the inner traveling parts 27,
Since the pair of endless belts are urged toward 28 and are pushed by a predetermined contact pressure from opposite directions,
The inner traveling portions 27 and 28 of 25 and 26 are twisted by the weight of the root vegetable A and the vibrations of the endless belts 25 and 26 during the transportation of the root vegetable A, the inner traveling portions 27 and 28 are twisted, and the pulleys before and after each The endless belts 36 located on the inner traveling portions 27 and 28 are not vertically separated from the 23 and 24 and the tension roller 30 and are always held vertically, and are moved toward the carry-out end portion. The foliage B of the root vegetables A sandwiched between these endless belts 36 does not come off during transportation and the root vegetables A do not fall, and the root vegetables A are smoothly rotated by the pair of endless belts 25 and 26.
Are reliably conveyed and discharged toward the discharge end.

Next, in the above embodiment, the front and rear pulleys 2 for guiding the circulation of the pair of endless belts 25, 26 are provided.
The case where the upper and lower engaging surfaces 34 of the 3, 24 and the tension roller 30 are formed vertically has been described, but the present invention is not limited to this.
For example, as shown in FIG. 5, it may be formed on an arcuate engagement surface 37 which is curved slightly in an up-down direction from the opening edge portion of the annular groove 33, or as shown in FIG. It may be formed on the inclined engagement surface 38 that is inclined inward in the vertical direction from the opening edge of the groove 33.

According to the structure shown in FIGS. 5 and 6, the endless belts 36 of the pair of endless belts 25 and 26 are engaged along the shapes of the arcuate engagement surface 37 and the inclined engagement surface 38, respectively. The pair of endless belts 25 and 26 is further prevented from being twisted together with the engagement of the respective endless ridges 35 in the respective annular grooves 33, and the endless belts 36 are The upper and lower ends are pulleys 23, 24 and tension rollers, respectively.
By inclining toward the center of 30, the stems and leaves B of the root vegetables A sandwiched between the opposing inner traveling portions 27, 28 are prevented from being damaged during transportation.

[0023]

According to the present invention, the front and rear pulleys and the tension roller for guiding the pair of endless belts each have an annular groove having a substantially V-shaped cross section formed on the outer periphery thereof, and the pair of endless belts are , A cross-section approximately V that engages in an annular groove formed in the front and rear pulleys and tension rollers on the inner peripheral portion
In addition to forming a letter-shaped endless ridge, a pair of endless ridges was formed on the outer periphery of the endless ridge to convey the root vegetables sandwiched between the respective inner traveling parts. When the belt travels, the endless ridges are guided and circulated while being surely fitted in the annular concave grooves of the front and rear pulleys and the tension roller. It is possible to perform stable rotation while securely supporting the middle part of the opposing inner traveling parts, and to firmly sandwich the root vegetables between the endless belts that move to the opposite inner traveling parts of this pair of endless belts. In addition, it is possible to reliably prevent the inner traveling parts that oppose each other from vertically vibrating and twisting during the transportation of the root vegetables, and the pair of endless belts is separated from the front and rear pulleys and tension rollers. Therefore, it is possible to reliably prevent the root vegetables from falling between the opposing inner traveling parts during transportation, and it is possible to smoothly move the opposite inner traveling parts that sandwich the root vegetables. ..

[Brief description of drawings]

FIG. 1 is a plan view of a root vegetable conveying device showing an embodiment of the present invention.

FIG. 2 is an enlarged plan view of a part showing the relationship between the tension roller and the endless belt.

FIG. 3 is a cross-sectional view of the tension roller showing a state where the root vegetables are clamped in the same as above.

FIG. 4 is a side view of a harvester equipped with the above-mentioned root vegetable conveying device.

FIG. 5 is a partial cross-sectional view of a pulley and a tension roller showing another embodiment.

FIG. 6 is a sectional view of a part of a pulley and a tension roller showing still another embodiment.

[Explanation of symbols]

 23 Pulley 24 Pulley 25 Endless belt 26 Endless belt 27 Inner traveling part 28 Inner traveling part 30 Tension roller 32 Spring 33 Annular groove 35 Endless ridge 36 Endless belt A Root vegetables B Stems and leaves

Claims (1)

[Claims] 1. A pair of front and rear pulleys, which are slantingly tilted rearward and are rotatably suspended, and which sandwich and convey root vegetables, move inwardly in the same direction so as to be close to each other. A pair of endless belts, a rotatable tension roller abutting on the inner side of the middle part of the inner side traveling parts of the pair of endless belts facing each other, and this tension roller on the inner side traveling part of each endless belt. The front and rear pulleys and the tension roller each have an annular groove with a substantially V-shaped cross section formed in the outer peripheral portion thereof, and the pair of endless belts have an inner peripheral portion. An endless ridge having a substantially V-shaped cross-section that engages with an annular groove formed in the front and rear pulleys and the tension roller, and the inner circumferences of the endless ridges are opposed to each other. Between departments To form a vertical shaped endless belt for conveying nip the vegetables include,
A root vegetable transport device characterized by the above.