JPH08826Y2 - Vegetable harvester - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Use) The present invention relates to a vegetable harvesting machine for harvesting vegetables such as onions comprising a ball portion and a foliage portion.

(Prior art) For example, as an onion harvesting machine, an onion is dug in a dugout provided in the front part, and the dug onion is moved backward by a transfer conveyor arranged behind the dugout. The onion is transported to the foliage separating device, which is located behind the transfer conveyor and holds and transfers the onion ball part, and is conveyed to the foliage separating device, and then the foliage separating device separates the onion into the sphere part and foliage part. There is one that is separated into two so that the balls are harvested.

Then, in order to make the transfer of the onion from the transfer conveyor to the lifting conveyor good, a rotary brush which is rotated in the direction opposite to the transfer direction of the conveyor is provided above the transfer conveyor. It has been proposed that the direction is controlled so as to face the front (the rear in the transfer direction). (See the specification and drawings of Japanese Utility Model Application No. 63-95317 (No. 2-17020)).

(Problems to be solved by the invention) In the above-mentioned conventional one, when the foliage is soft or is overripe and withered, the foliage is entangled in the rotary brush and the onion is caught in the rotary brush. is there. When the onion is caught in the rotating brush, the onion is sent to the lifting conveyor side through the upper side of the rotating brush, and the foliage is held and transferred together with the ball, and the subsequent processing cannot be performed well. There is.

Therefore, an object of the present invention is to drop vegetables such as onion caught in a rotary brush from the rotary brush.

(Means for Solving the Problem) The technical means taken by the present invention to achieve the above-mentioned object is to convey vegetables such as onions, which are composed of a ball portion and a foliage portion dug up in the dug portion. In the vegetable harvester, which is placed on top and transferred, and at the end of this transfer conveyor, the vegetables are transferred to another conveyor that holds the balls and transfers them to the foliage separating device, In front of the vegetable delivery position above the conveyor,
It is equipped with a rotating brush that rotates in the opposite direction to the transfer direction of the transfer conveyor to control the direction of the foliage of the vegetables to the rear of the transfer direction. The point is that the scraper member is in contact with the balls to drop the scraper member.

(Operation) When the harvester 1 is moved forward, vegetables T such as onions are dug up in the dug portion 3, and the dug up vegetables T are transferred backward by the transfer conveyor 6, and the vegetables T are transferred during the transfer. Is
The rotating brush 11 controls the direction of the foliage portion Ta so as to face forward. At this time, the stalks and leaves Ta are entangled with the rotating brush 11 and the vegetables T that are about to be caught in the rotating brush 11 have their ball portions Tb abutting the scraper member 39,
It is dropped onto the transfer conveyor 6 in front of 11.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 shows the whole of the self-propelled onion harvester 1, and 2 is a traveling device thereof, illustrating a crawler driven by engine power.

A dug portion 3 is provided at the front lower part of the harvester 1. The dug portion 3 is provided with a dug blade body 4 in the left-right direction to dug the onion T from the ridge, and a reiki 5 which is behind the dug blade body 4 to remove soil.

A transfer conveyor 6 is provided behind the dug portion 3 as shown in FIGS. 1 and 5. The transfer conveyor 6 is constructed by attaching a mounting rod 10 to a chain 9 stretched between a drive sprocket 7 and a driven sprocket 8.
It is supported between a pair of left and right front side frames 29 fixed to the machine frame 12 of the harvester 1. Drive sprocket 7 is a transmission shaft
The driven sprocket 8 is provided on the shaft 30, the driven sprocket 8 is provided on the shaft 31, and the transfer conveyor 6 is driven by the engine power transmitted to the transmission shaft 30 via the sprocket 32 provided at the left end portion of the transmission shaft 30 to move the arrow A. The onion T, which is circularly circulated in the direction and passed from the dug portion 3, is transferred rearward at a constant pitch.

A rotating brush 11 is arranged above the transfer conveyor 6. Support shafts 14 project outward from both ends of the center shaft 13 of the rotary brush 11, and the outer ends of the support shafts 14 are provided at the rotary brush 11.
While penetrating side cover plates 15 located on both the left and right sides, front ends of a pair of left and right swing arms 16 are pivotally connected to each support shaft 14. The rear end of the swing arm 16 is pivotally connected to the outside of the front side frame 29 by a pivot 17 so as to be vertically swingable. Further, the side cover plate 15 is formed with an arcuate groove 18 which allows the support shaft 14 to move around the pivot shaft 17. Driven sprocket 33 on the end of left spindle 14
Power is transmitted to the driven sprocket 33 from the drive sprocket 34 integrally formed with the sprocket 32 to which the engine power is transmitted, through the chain 35, and the rotary brush 11 is rotationally driven in the direction of arrow B. While the onion T is being transferred by the transfer conveyor 6, the foliage portion Ta of the onion T is controlled to face forward. As shown in FIG. 2, a gate-shaped frame 19 is arranged between the side cover plates 15, and lower ends of left and right side frame members 20 of the gate-shaped frame 19 are pivotally connected to the support shaft 14, The lower end of the link 22 is pivotally connected to the lateral center of the horizontal frame member 21 of the gate frame 19, and the upper end of the link 22 is pivotally connected to one end of the L-shaped lever body 23 via a pin 40. Has been done. A grip rod 24 is fixed to the upper end portion of the lever body 23, and a bent portion of the lever body 23 is rotatably and pivotally connected to a lower portion of a support plate 25 fixed to the machine frame 12 via a support shaft 26. A plurality of engagement holes 27 are formed at intervals above the support plate 25 around a support shaft 26, and a lever body 23 is engaged with and disengageably engaged with the engagement holes 27. A dowel pin 28 is provided.

Therefore, when the grip rod 24 of the lever body 23 is pulled forward (rearward), the lever body 23 is elastically deformed and the engagement pin 28 is disengaged from the engagement hole 27. In this state, the lever body 23 is rotated around the support shaft 26. By swinging the rotating brush 11, the rotating brush 11 is moved up and down,
The distance between the rotary brush 11 and the transfer conveyor 6 can be freely adjusted, and when the engaging pin 28 is aligned with the engaging hole 27 at a proper position and the hand is released from the gripping rod 24, the engaging pin 28 is engaged. And the distance between the rotary brush 11 and the transfer conveyor 6 is maintained. Further, on the right side of the rear end of the transfer conveyor 6, there is arranged a control part 37 having a seat 36, and the gripping rod 24 of the lever body 23 is located at a position where the hand can reach from the control part 37 from the control part 37. The operation of adjusting the vertical position of the rotating brush 11
Transfer conveyor 6 while excavating onion from 37
It can be performed while visually observing the flow of the onion T above.

On the horizontal frame member 21 of the portal frame 19, a scraper member 39 composed of a large number of rods 38 arranged at intervals in the left-right direction is fixed. Rod 38 is horizontal frame material 21
From the front to the front, is bent downward, and is further bent backward, and the lower side is embedded in the brush of the rotating brush 11. In addition, the distance between 38 rods is the onion T
The ball portion Tb of the rotary brush 11
When the onion T is entangled with the onion T and the onion T is about to be caught in the rotary brush 11, the ball Tb of the onion T contacts the rod 38 and the onion T is dropped in front of the rotary brush 11. It is like this.

In FIG. 5, a lifting conveyor 41 is provided behind the transfer conveyor 6, and the lifting conveyor 41 is a machine frame 12
It is supported between a pair of left and right rear side frames 42 fixed to the lift conveyor 41 by the engine power.
Driven in the direction. Further, the lifting conveyor 41 has a pair of front and rear holding metal fittings 43 for holding the ball portion Tb of the onion T. The holding metal fittings 43 are opened at a position where the onion T is delivered from the transfer conveyor 6. It is closed by the time it reaches the rear inverting section 44 and holds the onion T. Then, the onion T is turned upside down by the reversing unit 44 so as to face downward, and the foliage portion Ta thereof hangs down.

In order to cut the hanging foliage portion Ta, a cutting mechanism (foliage separating device) 45 is provided below the reversing portion 44, and in the front lower part of the cutting mechanism 45 in the left-right direction orthogonal to the transfer direction of the lifting conveyor 41. A lateral feed conveyor 46 is provided. Then, the holding metal fitting 43 is the lateral feed conveyor.
46 The onion T's hug is released at the upper position.

The transverse feed conveyor 46 is driven by engine power so as to be capable of forward and reverse rotation, and is fed to a chute (not shown) provided on the left side of the harvester 1 during normal rotation and discharged onto the ridges, and during reverse rotation, the harvester 1 is rotated. It is designed to be discharged into a storage container placed on a placing table 47 provided on the right side.

As shown in FIGS. 6 and 7, the cutting mechanism 45 is a hair clipper type, and has a fixed blade 48 and a movable blade 49 that performs reciprocating motion. The fixed blade 48 is fixed to a mounting base 50 having a U-shape in plan view, and the left and right side plates 45a of the mounting base 50 are mounted on the machine frame 1
2 and a pair of left and right fixing plates fixed to the rear side frame 42
It is fixed to 1 with bolts and nuts 52, and the bolt insertion holes 53 and 54 of the fixing plate 51 are long holes in the vertical direction and multiple holes arranged at vertical intervals, and the vertical position can be adjusted with the mounting base 50. It is said that.

The movable blade 49 is composed of a drive shaft 55 of the transverse feed conveyor 46, a chain transmission mechanism 56, and a crank mechanism 57 provided with a mounting base 50.
Power is obtained via the support plate 58 and the like.
Then, by adjusting the mounting base 50 vertically, the double-edged blades 48, 4
9 is moved up and down to adjust the cutting length of the foliage portion Ta.

Further, a middle portion of a tension arm 59 that applies tension to the chain of the chain transmission mechanism 56 is rotatably supported on the mounting base 50 via a pivot 60. A tension pulley 61 is provided at one end of the tension arm 59, and an arcuate seat 62 is fixed to the other end. As shown in FIG. 8, the tip of the bolt 64 for inserting the support plate 63 fixed to the mounting base 50 is inserted into the receiving seat 62, and the receiving seat 62 is attached to the bolt.
It is sandwiched between a cylindrical positioning nut body 65 screwed to 64 and a lock nut 66, and rotation of the tension arm 59 is restricted. Then loosen the lock nut 66,
The tension can be adjusted by moving the positioning nut body 65 in the axial direction of the bolt 64.

The scraper member may be formed of a strip plate material and may be disposed on the front side of the rotating brush 11 in the left-right direction so as to be close to each other.

(Effect of the Invention) In the vegetable harvesting machine according to the present invention, in order to reliably perform the separation process by the foliage separation device, when the vegetables are transferred to another conveyor, only the ball portion is securely held. However, in the present invention, in front of the vegetable delivery position, the rotating brush controls the direction of the foliage portion so that the foliage portion is directed rearward and the foliage portion is not held together. The scraper member can prevent the vegetables from being wound around the rotary brush and being sent to the vegetable delivery position side through the upper side of the rotary brush, thus ensuring the passage of the vegetables between the rotary brush and the transfer conveyor. As a result, it is possible to reliably cause the other conveyor to hold the ball portion and to perform the subsequent processing smoothly.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, FIG. 1 is a left sectional view of an essential part, FIG. 2 is a rear view thereof, and FIG. 3 is a developed sectional view of a lever body and a link of a vertical position adjusting mechanism of a rotary brush, FIG. 4 is an overall perspective view, FIG. 5 is a side view of a transfer conveyor, a lifting conveyor, etc., FIG. 6 is a view taken along the line VI-VI in FIG. 5, and FIG. 7 is a view taken along the line VII-VII in FIG. A sectional view and FIG. 8 are sectional views of the lock mechanism of the tension arm. 1 ... Onion harvester, 3 ... Digging part, 6 ... Transfer conveyor, 11 ... Rotating brush, 39 ... Scraper member, T ...
Onion, Ta ... foliage, Tb ... onion.

Claims (1)

[Scope of utility model registration request] 1. A vegetable such as an onion comprising a ball portion and a foliage portion excavated in the excavation portion is placed on a transfer conveyor and transferred, and the ball portion is held at the end portion of the transfer conveyor. In a vegetable harvester configured to deliver vegetables to another conveyor that is held and transferred to a foliage separation device, in front of the vegetable delivery position above the transfer conveyor, the foliage portion of the vegetables is directed rearward in the transfer direction. A rotary brush that rotates in the opposite direction to the transfer direction of the transfer conveyor for direction control is provided, and a scraper member with which the ball portion abuts to drop the vegetables caught in the rotary brush to the rear side in the transfer conveyor transfer direction of the rotary brush. A vegetable harvester characterized by being composed of: