JPH0837882A - Conveying August Cru and Conveyor - Google Patents

Abstract

(57) [Summary] [Purpose] Carry the harvested cabbage smoothly without stagnation. A groove 45 and a ridge 46 are spirally formed on the straight rod shaft 44, and the depth of the groove 45 is changed and the feed action surface 50 of the ridge 46 is substantially upright.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transporting August cru and a transporting machine, and is used for transporting harvested cabbage.

[0002]

2. Description of the Related Art Conventionally, as an auger cru and a carrier for transporting harvested cabbage, there are those shown in FIGS. The conventional example 1 shown in FIG.
Two auger screws 4 in which spiral grooves 2 and ridges 3 are formed alternately in the axial direction on the surface of a straight rod shaft 1 are arranged in parallel in the axial direction to form a carrier 5. The outer diameter including the ridge 3 is formed in a taper shape with a tapered tip to form the foot roller 7 of the crop rhizome portion 6. The screw portion 9 following the tip portion 8 has a depth equal to that of the ridge 3 having the same outer diameter. Same groove 2
And the disk cutter 1 are formed on the screw portion 9 alternately.
0 was provided and the crop rhizome portion 6 being conveyed was cut.

In the conventional example 2 shown in FIG. 4 (B), the convex rods 3 having the same outer diameter and the concave grooves 2 having the same depth are formed in a spiral shape alternately in the axial direction over the entire length of the straight rod shaft 1. The ends of the straight rod shafts 1 were spread in a V shape and arranged side by side (others are common to the conventional example 1). The conventional example 3 in FIG. 4 (C) is a combination of the above-described conventional example 1 of the August screw 4 and conventional example 2 of the August screw 4.

[0004]

In all of the conventional examples 1 to 3, the auger screw 4 is rotated inwardly around the axis of the arrow D in the direction of the arrow D, so that the ball head portion is supported on the screw 4 and the ridges thereof are provided. It is conveyed in the direction of arrow E by the feeding action surface 3 of FIG. However, the conventional example 1 has a problem that the feeding action surface of the ridge 3 is small and the feeding force is weak because the depth of the concave groove 2 is low at the beginning of feeding the auger screw 4 (right side in the drawing).

Further, in the conventional example 2, since the depth of the concave groove 2 is the same throughout, the carrying force can be secured to some extent, but the roller 7 is small and it is difficult to inherit the crop, and the crop is stagnant. When the (stem) is thin, there is a problem that the carrying force is reduced. In the conventional example 3, since the feeding action surfaces of the pair of August cru 4 are different at the beginning of feeding, the crop is conveyed while being twisted, and there is a problem that it is difficult to maintain the posture.

[0006] Therefore, an object of the present invention is to provide an August cru and a carrier that secure a sufficient carrying force regardless of the size of the crop (stem) and have little stagnation of the crop.

[0007]

According to the present invention, a straight rod shaft (4
A conveying auger screw (4) in which spiral grooves (45) and ridges (46) are formed alternately on the surface of (4) in the axial direction.
In 7), the following technical measures are taken to achieve the above-mentioned object. That is, in the auger screw 49 of the present invention according to claim 1, the inner diameter including the concave groove (45) has a groove depth toward the reverse direction of conveyance in the screw portion (48) having a partial length of the straight rod shaft (44). Is deeply changed to a taper shape, and the outer diameter including the ridge (46) is the same over the entire length of the straight rod shaft (44), and the ridge (in the screw portion (48) ( 46) feeding action surface (5
0) is characterized in that it is formed so as to rise almost vertically to the axial direction.

Further, an auger screw 47 of the present invention according to a second aspect is characterized in that the tip end portion of the straight rod shaft (44) has the characteristic constitution of the first aspect. Furthermore, the auger screw 47 of the present invention according to claim 3 is characterized in that it has the characteristic configuration of claim 1 at an axially intermediate portion of the straight rod shaft (44). Further, a conveyor 42 of the present invention according to claim 4 is arranged such that the conveying August clews (47) according to claim 1 are arranged parallel to each other in the axial direction, and are axially mounted so as to rotate inward. At the tip of the straight rod shaft (44), the recessed groove (45) faces each other, and the roller (5
1) is formed.

[0009]

According to the auger screw 47 and the carrier 42 using the same according to the present invention, the feeding action surface 50 of the ridge 46 is provided.
Is wide, a reliable conveying force can be obtained as long as the stem S is located in the groove 45. On the other hand, the roller 50 is widened on the opposite side of the concave groove 45, and the inheritance (introduction) of the crop K is ensured, and there is little stagnation.

[0010]

EXAMPLE FIG. 3 shows a vegetable harvester 2 suitable for picking cabbage.
0 is shown. The harvester 20 has a traveling vehicle 21, on which the cabbage (vegetable) K in the field is fed.
Harvesting means 22 for pulling out the cabbage K, first transporting means 23 for lifting the cabbage K pulled up by the harvesting means 22, and second transporting means for transporting the cabbage K sent by the first transporting means 23 to the publication. 24 and this second
A cutting means 25 for cutting and removing the rhizome S of the cabbage K during the transportation of the transportation means 24, a posture correction means 26 arranged in front of the cutting means 25 in the transportation direction for correcting the posture of the cabbage K, and a rhizome S. And a storage section 27 for storing the cut cabbage K.

The traveling vehicle 21 has a vehicle body 29 having a crawler 28, and a driver's seat 30 is provided on the right side of the vehicle body 29. In front of or on the left side of the driver's seat 30, there are a steering operation lever, a main gear shift lever, a sub gear shift lever, an accelerator lever, and the like. In addition, the vehicle body 29 has a crawler 28
An engine 31 and a mission 32 for driving the engine are provided. A lifting work device 33 is provided at the rear of the vehicle body 29.
Is provided.

The harvesting means 22 is arranged in front of the left part of the vehicle body 29, and has a pair of left and right pickup disks 34 arranged at the front end thereof, and the pickup disk 34.
It has a pair of right and left intake screws 35 for sandwiching the rhizome S of the cabbage K pulled out by and carrying it to the upper rear. The right and left intake screws 35 are so-called biaxial August screws having a spiral groove on the surface of the straight rod shaft, and convey the backward portion while sandwiching the root portion S in the grooves of both screws. This intake screw 35
Are arranged at a predetermined angle with respect to the surface of the field.

The first conveying means 23 has a lifting screw 36 connected to the rear end of the intake screw 35 and a belt conveyor 37 for holding the top of the cabbage K so that the lifting screw 36 can stably convey the cabbage K. Have and. The lifting screw 36 is inclined rearward and upward at an angle larger than that of the intake screw 35,
Similar to the intake screw 35, it is composed of a biaxial August screw, and is provided in a pair of left and right, and lifts and transports the cabbage K rearward and upward while sandwiching the rhizome S in the groove of the screw.

The belt conveyor 37 is driven at substantially the same speed as the carrying speed of the lifting screw 36, and presses the top of the cabbage K being carried by the lifting screw 36 to prevent the cabbage K from falling and to carry it stably. I am trying. A rotary drive type cutting blade 38 is provided below the lifting screw 36, and the lifting screw 36 of the rhizome S of the cabbage K is provided by the cutting blade 38.
Thus, the rhizome S below the portion is cut and removed, leaving the portion sandwiched by.

The cabbage K lifted by the first carrying means 23 is carried backward by the second carrying means 24. In the course of conveyance by the second conveying means 24, the posture correcting means 26 makes the axis of the bulb portion O of the cabbage K substantially orthogonal to the conveying direction, and then the cutting means 25 separates the bulb portion O and the rhizome S. Is cut off at the boundary. The cabbage K from which the rhizome S has been cut and removed is further transported rearward by the second transporting means 24 and dropped downward above the storage 27. It should be noted that the upper side and the side of the second transporting means 24 are covered with a protective cover 39.

The storage section 27 is a container 4 which is open upward.
In this container 40, a large number of cabbage K dropped from the rear end portion of the second transport means 24 are accommodated. The second carrying means 24 holds the carrying machine 42 linked to the rear end of the lifting screw 36 via the refraction inheritance section 41 and the bulb section O of the cabbage K on the carrying machine 42 from the left and right and carries them. And an endless side transport section 43.

Both the carrier 42 and the side carrier 43 are gently inclined rearward and upward so that the carrying directions are the same direction (substantially rearward), and the carrying speed of the carrier 42 and the side carrying. The conveyance speed of the section 43 is set to the same speed. The present invention is applied to the carrier 42 that constitutes the second carrier 24, and will be described with reference to FIGS.

1 (A) and 1 (B), a hemispherical groove 45 and a trapezoidal ridge 46 are spirally formed alternately in the axial direction on the surface of a straight rod shaft 44 having a circular cross section to form an August crucible. It is said to be 47. The inner diameter of the groove 45 includes a screw portion 48 having a partial length of the straight rod shaft 44 in which the groove depth is gradually and deeply tapered toward the reverse direction of conveyance, and is formed at the tip portion. Screw part 48
In the screw portion 49 following the above, the screw portions 49 having the same groove depth and the same height of the ridges 46 are continuously arranged in a spiral shape.

The ridges 4 in the screw portions 48 and 49
The outer diameter including 6 is the same throughout the entire length of the straight rod shaft 44, and the feed action surface 50 of the ridge 46 in the screw portion 48 at the tip portion rises in a substantially vertical shape with respect to the axial direction. Formed as a wall. 2 of this August Cru 47
The books are mounted side by side so as to rotate inwardly in parallel with each other so as to rotate inwardly parallel to each other in the axial direction, and the recessed grooves 45 face each other in the bent joint portion 41 to form a roller 51 at the tip portion. To prevent stagnation.

That is, the cabbage K inherited from the lifting screw 36 to the carrier 42 via the inheritance section 41.
When the rhizome S is smoothly introduced into the roller 51, it is securely conveyed in the direction of the arrow E by the strong feeding action of the feeding action surface 50, and the groove depth of the concave groove 45 gradually increases. By making the depth shallow, the cutting means 25 provided on the lower surface of the screw portion 49 cuts the boundary portion between the bulb portion O and the rhizome S in a state where the rhizome S is securely held.

FIG. 2 shows a second embodiment of the present invention, which is applied to the lifting screw 36. That is, when the shaft length of the auger screw is long, a transmission case 53 having a bevel gear means 52 built therein is provided in the middle thereof to interlock and connect the two auger screws (lifting screws) 36 to face the transmission case 53. The auger screw 47 described above is provided in the portion, and a sufficient conveying force is secured by the feed action surface 50 of the auger screw 47 even when the conveying force in the transmission case 53 becomes weak.

[0022]

According to the present invention described in detail above, there is no stagnation at the inheritance portion or the like when the crop (cabbage) is conveyed, and the conveying force by screw feeding is strengthened, and smooth conveyance can be performed.

[Brief description of drawings]

1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a plan view of an essential part with a partial cross section, and FIG.

FIG. 2 is a plan view of an essential part showing a second embodiment of the present invention.

FIG. 3 is an overall side view of a cabbage harvester to which the present invention has been applied.

FIG. 4 is a plan view of a conventional example, (A) is a conventional example 1, (B) is a conventional example 2, and (C) is a conventional example 3;

[Explanation of symbols]

 42 Conveyor 44 Straight rod 45 Concave groove 46 Convex 47 Auger screw 48 Screw part 50 Feeding surface 51 Roller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tosei Yamazaki 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Co., Ltd. (72) Keizo Kato 64, Ishizukitamachi, Sakai City, Osaka Kubota Sakai Co., Ltd. Inside the factory

Claims (4)

[Claims] 1. A transporting auger screw (47) in which spiral grooves (45) and ridges (46) are formed alternately on the surface of a straight rod shaft (44) in the axial direction, wherein the grooves are formed. The inner diameter including (45) is such that the groove depth is deeply tapered in the screw portion (48) having the partial length of the straight rod shaft (44) in the reverse direction of conveyance, and the convex stripe (46) is The included outer diameter is the same over the entire length of the straight rod shaft (44), and the feed action surface (50) of the ridge (46) in the screw portion (48) is substantially perpendicular to the axial direction. An auger screw for transportation, characterized in that it is formed by rising. 2. A transporting auger screw, characterized in that the straight rod shaft (44) has the characteristic structure of claim 1 at the tip portion thereof. 3. A transporting auger screw having the characteristic structure of claim 1 at an axially intermediate portion of a straight rod shaft (44). 4. The transporting August crus (47) according to claim 1 are arranged side by side in parallel with each other in the axial direction and are mounted so as to rotate inwardly toward each other, and are attached to the tip portion of the straight rod shaft (44). A carrier machine, characterized in that a roller (51) is formed by facing the concave groove (45).