JPH11266643A - Height controller of front part of machine body in harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject device capable of more effectively exerting its function and not causing a trouble about a relative position to a related device such as a grass divider by making a tilting angle to a horizontal plane be a specific value. SOLUTION: This harvester for crops or a rhizome has a grass divider 1 scooping up, dividing and arranging crops or a foliage part of a rhizome vegetable and a controller 37 adjusting a height of a front part of a machine body such as the grass divider 1, and the height controller 37 is backwardly tilted to have a tilted angle to a horizontal plane larger than a tilted angle of the backwardly tilted grass divider 1. In the harvester for the crops or the rhizome, a stretching direction of the height controller 37 is preferably constructed in opposing to the vicinity of the upper end of the grass divider 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a cereal or rhizome harvester for harvesting rhizome crops such as cereals, onions, carrots and radish from a field.

[0002]

2. Description of the Related Art As a conventional technique, there is provided a weeding device that scoops and separates the foliage of a rhizome crop, and conveys it obliquely rearward and upward. In an onion harvesting machine equipped with a gage foil, a gage foil mounted so as to be adjustable up and down is disclosed in JP-A-9-266716 as an embodiment.

However, in this type of harvester, the relative position between the weeding device and the gage foil, which scoops and separates the foliage of the harvested material and conveys it obliquely upward and rearward, is unclear, and only vertical adjustment is taken into account. In general, in this case, the gage foil may step on the foliage to be scooped up by the weeding device, which may cause a malfunction in the work, thereby reducing the work efficiency. It also has potential problems to induce.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems in the prior art.
The function of the height adjustment device at the front of the fuselage works more effectively,
Another object of the present invention is to provide a cereal or rhizome harvesting machine in which a configuration of a body front height adjusting device is devised so as not to cause a problem at a relative position with a related device such as a weeding device.

[0005]

The present invention is provided with a weeding device for scooping up the foliage of a cereal or rhizome crop, separating and transporting the same to the rear and obliquely upward, and adjusting the height of the front of the machine such as the weeding device. In a cereal or rhizome harvester equipped with a device, a structure in which the inclination angle at a ground contact point such as a gage wheel or a gage sled attached to a front height adjustment device is larger than the inclination angle of a weeding device. I made it.

Further, the extension and contraction direction of a support cylinder, which is a telescopic portion of an adjusting device configured to extend and contract, for the purpose of up and down adjustment of a gage wheel or a gage sled mounted on the body front height adjusting device. To the upper end of the weeding device, and make the upper end of the front height adjustment device close to the upper end of the weeding device so that it has a relative position with the starting position of the raising tine of the weeding device. To retreat the ground contact point such as the gage wheel or the gage sled so that the gage wheel or the gage sled does not step on the foliage to be pulled up by the weeding device. In order to avoid this, the vertical stroke of the vertical adjustment is made as large as possible.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to the use of a cereal or rhizome harvester to adjust the weeding device up and down so as to adapt to the state of the foliage according to the growing condition of the crop. In consideration of the adjustment to various ridge heights depending on the cropping system and type, an aircraft front height adjustment device configured to enable proper vertical adjustment is attached to the weeding device, and the adjustment device and The onion harvesting machine is an example in which the relative position with respect to the weeding device and the mounting angle are devised so that there is no problem in the operation.

[0008]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a front part of a fuselage according to a main part of the present invention, in which a side relative position of a gage wheel and a weeding device mounted on a front part height adjusting device and a mounting angle of each are shown. It is. FIG. 2 is a front view of a front part of the machine body according to a main part of the present invention, in which the relative positions of the gage wheel and the weeding device are viewed from the front. FIG. 3 is a side view of the adjusting device equipped with a gage wheel. FIG. 4 is an overall side view of an onion harvesting machine as an embodiment according to the present invention, and FIG. 5 is a plan view of the same. FIG. 6 is a plan view in which the lower transfer device and the alignment transfer device are connected in series, and FIG. 7 is a side view in which the lower transfer device is sectioned and the alignment transfer device is connected in series. FIG. 8 is a cross-sectional view of the aligning and conveying device as viewed from the side, and FIG. 9 is an explanatory diagram of a mounting state of the cutting device as viewed from the side of the machine body. FIG. 10 is a sectional view of the mounting structure of the cutting device.

First, the overall structure of an onion harvesting machine as an embodiment will be described mainly with reference to FIG. 4 and FIG.
(1) is a weeding device mounted on the foremost part of the fuselage. The weeding device is composed of a plurality of vertical weeding bodies (1b) provided at predetermined intervals in the left-right direction. It consists of a chain with a pull-in tine (1a) wound around each pulley and a weeding stick (1c) fixed to the tip of a weeding body (1b). The raised tine (1a) is moved to cause the foliage of a crop such as an onion to be swept away.

A weed stick (1c) fixed to the tip of each weed body (1b) extends obliquely forward and downward. Is to scoop.

(3) is a raking device comprising a pair of left and right squeezing conveyance bodies (3a) and (3b) which are wound around a belt with projections (4). By orbiting from the outside of the tip of the device (3) toward the center and then linearly obliquely upward and rearward,
The foliage of the crop caused by the weeding device (1) is scraped into the lower center of the scraping device (3) and pushed up obliquely upward (U2).

(5) A pull-out transporter (5a) (5b), which includes an endless belt transport belt (6) and a plurality of pulleys (7a) (7b) and is constructed so as to face a pair of left and right sides. Device. A pair of endless belts (6) and (6) are opposed to each other, and a space between them is defined as a pull-out transport path (H).

The drawing device (5) is a scraping device (3)
The relatively upper part of the foliage that has been scraped is inherited at the transport start end of the pull-out transport path (H), and then conveyed diagonally upward and backward (U3) while being pinched by the pull-out device (5). With the advance of the machine body, the crop is pulled out from the ridge surface which has been expanded by the vibration action of the pair of right and left excavating blades (8) and (8) disposed below the drawing device (5), and is conveyed obliquely upward and rearward. It is configured to be.

A lower transfer device (9) is provided below the drawing device (5). The lower transfer device (9) has a pair of left and right lower transfer members (9a) (9a) as shown in FIGS. 9
b), the inclination of which is more gradual than that of the drawing device (5). Lower right and left carrier (9a)
(9b) is formed by winding a lower transport belt (13) around a pair of front and rear pulleys (11) and (12), and the lower transport belts (13) and (13) face each other. The space between (13) and (13) was defined as the lower transport route (K) of the foliage.

As shown in FIG. 4, FIG. 6 and FIG. 7, an aligning and conveying device (15) is provided continuously below the drawing device (5) and at the end of the lower conveying device (9). . The configuration of the aligning and conveying device (15) is as shown in FIG.
An endless conveyor belt (18) is wound around the reel (16) and the driven pulley (17), and the start end side is high and the end side is low, as shown in FIG. Skewed with
A drive pulley (16) mounted on an aligning and transporting drive shaft (34) via a transmission (19) connected to the lower transporting device (9).
Is rotated so that the lower side (18a) of the conveyor belt (18) circulates backward and downward to transport and discharge the crop.

As shown in FIGS. 6 and 7, a transfer device (20) is provided at the end of the lower transfer device (9). The transfer device (20) is located at the rear left side of the lower transfer device (9).
The center of rotation (21) integral with the ri (12)
A guide roller (23) is provided on the rotation center shaft (21) below the pulley (12) at the rear of the lower transport device (9). It has a configuration.

Incidentally, 2 which forms a part of the aligning and conveying device (15)
The guide rods (24a) and (24b) of the book are transported by the lower transport device (9).
And is screwed via a guide rod adjusting bolt (24c) so as to face the lower side of the conveyor belt (18) in the left-right direction. A guide plate (24) made of resin is fixed to the guide rod (24a) so that the ball portion is gradually lifted and the posture of the ball portion is turned sideways.

As shown in FIGS. 4, 5 and 9, (2)
6) (26) are two traveling wheels mounted on the fuselage,
(27) is a drive case for supporting a drive shaft for driving the pulling-out device (5). (29) is a gage wheel for holding the front part of the body at an appropriate height. ) Is the gage wheel (2)
A gage wheel adjusting handle for vertically displacing 9) with respect to the body.

Further, the configuration according to the main part of the present invention is shown in FIGS.
More specifically, referring to FIG. 3, the weeding device (1) is composed of a plurality of vertically-rotated weeds (1b). ), The weeding device (1) is attached to the axle fulcrum via a main transmission case provided with the transmission tube (2) in a vertically rotatable manner. On the other hand, an extensible body front height adjusting device (37) is attached to and fixed to the weeding device (1), and arbitrarily attached to the front of the aircraft via a gage wheel adjusting handle (30). The height above the ground of the weeding device (1) can be adjusted to an appropriate height.

In the present invention, the attachment relative positions of the weeding device (1) and the gage wheel (29) mounted on the body front height adjusting device (37) are devised, as shown in FIG. The inclination angle (B) of the height adjusting device (37) is made larger than the inclination angle (A) of the weeding device (1), and the height of the front of the fuselage is set using the contact point of the gage wheel (29) as a fulcrum. The extension direction of the support cylinder (42) constituting the expansion and contraction portion of the adjustment device (37) is directed obliquely forward and downward from the tip of each vertically-rotated weed body (1b) by directing it to the upper end direction of the weeding device. From the contact point of the weeding rod (1c) and the starting position of the raising tine (1a), the gage ring (2)
9) The contact point can be retracted and the retreat distance can be set large, so that the gage wheel (29) does not step on the foliage that the weeding rod (1c) scoops up and separates during harvesting. Can be avoided. The same applies to the case where a sledge is mounted instead of the gage wheel (29) as an alternative.

In addition, since the upper end of the body front height adjusting device (37) is located close to the upper end of the vertical weeding body (1b) of the weeding device (1), the vertical stroke of the telescopic stroke can be reduced. Was able to be filled to the full height of the weeding device (1).

The structure of the body front height adjusting device (37) will be described in detail with reference to FIG. 3. It is built in a bevel case (38) connected to the tip of a gage wheel adjusting handle (30). The joint shaft (41) and the screw shaft (43) are joined by a pin (40) via the pair of bevel gears, and the screw shaft (43) projects from the bevel case (38). 43) is an outer cylinder (42) constituting a support cylinder (42).
b) and is fixed to the bevel case (38) by the outer cylinder mounting metal (39). On the other hand, the same support cylinder (42)
A screw top (44) is fixedly attached to the inner cylinder (42a), and the screw top (44) is screwed into the screw shaft (43). When the adjustment handle (30) is operated, the screw is moved from the bevel gear to the screw. The rotational motion transmitted to the shaft (43) is converted into a linear motion, and the support tube (42) expands and contracts.

The support cylinder (42), which is formed by inserting and stacking the inner cylinder (42a) and the outer cylinder (42b), is an inner cylinder (42a).
An arm (42c) is welded to the tip of the arm (42c).
A gage wheel (29) is pivotally mounted on (c), and the gage wheel (29) serves as a holding point at the front of the fuselage and serves as a fulcrum when the support cylinder (42) expands and contracts. As an alternative, the gauge wheel (2
The same applies when a sled is attached to the shaft instead of 9).

As shown in FIGS. 5 and 9, a cutting device (14) is provided between the drawing device (5) and the lower conveying device (9), and the cutting device (14) changes the height position. The cutting position of the foliage can be arbitrarily changed and adjusted in a stepless manner.

That is, as shown in FIG. 10, a guide plate (14) having a U-shaped cross section is attached to a support plate (14a) fixed to the body.
b) is fixed with bolts, and a long hole is formed at a substantially central portion of the guide plate (14b). On the other hand, a flange (14c) is provided as an attachment portion on the cutting device (14) to guide the flange. Board (14
b) It is formed so as to be fitted into a long hole and fastened and fixed with a square nut (14p) at an arbitrary position within the length of the long hole. As shown in FIG. 10, the universal joint (1) is attached to each of the drive shaft (14d) and the input shaft (14e) of the cutting device (14).
4f) One end of (14f) is connected, and the other end of the universal joint (14f) (14f) is connected by a transmission shaft (14g). At this time, the transmission shaft (14g) can be expanded and contracted by spline fitting (S). The transmission shaft (14g) is covered with a rigid pipe (14h) such as a PVC pipe, and each end of the rigid pipe (14h), the side surface of the transmission case (14j) and the frame of the cutting device (14). (14k) with a flexible tube (14n) such as a soft resin or rubber material.

The drive shaft of the pull-out device (5) linked to the output shaft built in the output case connected to the front of the traveling transmission device (33) directly connected to the engine (E) has right and left sides. The drawing device (5) is driven via the upper pulleys (7a) and (7a), and the left and right pulleys (7b) and (7) of the drawing device (5) are moved.
b) Right and left chain transmissions (28) connected to the pulley shaft
The driving of the pair of left and right scraping devices (3) is branched via (28) to the driving of the lower conveying device (9) which forms the same pair, and the terminal portion of the lower conveying device (9) as shown in FIG. An alignment transport drive shaft (34) from a transmission relay shaft (10) built in a transmission case (19a) forming a more protruding transmission portion (19) via an intermediate shaft (19b) and a plurality of bevel gears.
To drive the aligning and conveying device (15). The mechanism configuration of the alignment and transport device (15), including the transmission components, is an independent configuration as the alignment and transport device (15), and is detachable from the machine body by a mechanism. (31) is a steering handle, and (32) is a foliage discharge device capable of being transferred from the inside of the upper end of the left pull-out conveyance body (5a) to the outside in the arc direction.

More specifically, referring to FIGS. 6 to 8, the front pulleys (11) and (11) of the lower transporters (9a) and (9b) forming a pair of the right and left lower transporters (9) are The input power is transmitted to the rear pulleys (12) and (12) via the lower transport belts (13) and (13), where the rear pulley (12) of the right lower transport body (9b) is axially mounted. The transmission relay shaft (10) is connected to the intermediate shaft (19b) via a bevel gear, and the intermediate shaft (19b) is connected to the drive shaft (34) of the aligning and conveying device (15) via the bevel gear. A conveying belt (18) wound around a driven pulley (17) by a driving pulley (16) mounted on a driving shaft (34).
Is configured to be driven.

Therefore, the transmission relay shaft (10) and the intermediate shaft (1)
9b) and a transmission case incorporating a bevel gear (19a)
And an aligning and transporting device (1)
5) When the connecting case (35) which constitutes one end of the mechanism is fitted and fixed with the set bolt (36), the machine is equipped with the alignment and transport device (15) mechanism, and conversely, the set bolt (35) is set. 36), the alignment and transporting device (1
5) can be removed by a mechanism.

The operation of harvesting onions with the onion harvesting machine constructed as described above will be described below. As shown in FIG. 4, when the airframe runs along the ridges (W), the weeds (1c) scoop up the onion foliage grown on the ridges.
At this time, in order to adjust the ground height of the weeding device (1) to an appropriate height, the adjusting handle (30) is turned, and the height of the height adjusting device (37) is adjusted with the gage wheel (29) as a fulcrum. By adjusting the expansion and contraction, the ground height of the weeding device (1) is adjusted in accordance with the onion growing condition, the state of the foliage and the ridge height, and the raising tine (1a) is activated by the operation of the weeding device (1). Is obliquely upward (U
Move to 1) to stalk and raise the foliage, and the belt with projections (4), which is inherited by the raking device (3), continues to move diagonally upward and backward (U2) to remove the foliage from the pulling device (5). The digging blades (8) and (8) make the ridge surface soft and soft at an appropriately adjusted depth according to this stroke. The onion is pulled out while holding the target upper part, and the diagonally upper part (U
Convey to 3).

The stems and leaves of the onions conveyed in this way are supplied to the conveying start end of the lower conveying device (9). Thereafter, the lower conveying belts (13) and (13) sandwich the lower part of the stems and leaves, and are substantially horizontal. It is transported to the rear in the direction.

During the transfer by the pulling-out device (5) and the lower transporting device (9), the pulling-out device (5) pulls the foliage upward, while the lower transporting device (9) is pulled by the lower transporting belt (1).
3) The ball portion is locked via (13) to prevent the ball portion from rising. Accordingly, the lower transport belts (13) and (13) are moved backward while holding the neck of the foliage, and the pulling-out device (5) applies a pulling force to the foliage positioned between the lower transporter (9). Give it and make it nervous.

When the transport of the foliage is progressed by the lower transport device (9) or the like, the cutting device (1)
The cutting blade (14r) of 4) cuts the foliage at a position adjusted to a certain height, and the onion thus treated eventually reaches the transfer device (20).

Before the foliage reaching the transfer device (20) reaches the transport end portion of the lower transport device (9), the foliage portion on the left lower transport belt (13) or the guide rod (2) shown in FIGS.
4a) The front end of (24b) and the conveying belt (18) of the aligning and conveying device (15) are nipped and conveyed rearward. In this conveying process, the foliage is locked and conveyed by a star wheel (22). The action is exerted and the ball is guided by the guide roller (23), and the foliage is circulated along the arc of the outer periphery of the star wheel (22) and moved to the left rear, while the ball is moved. The onion is smoothly moved rearward in contact with the peripheral surface of the guide roller (23), so that the onion is surely turned to the side.

The foliage that has been turned over in this manner is fed to the conveyor belt (18) and the two guide rod adjusting bolts (24c) (24) at the beginning of the aligning and conveying device (15) shown in FIGS.
guide rods (24a) and (24b) screwed adjustably in c)
After being sandwiched between the guide rods (24a) and (24b), the conveyor belt (18) positioned above the guide rods (24a) and (24b) presses the foliage toward the guide rods (24a) and (24b) while cooperating with each other. It works to convey the foliage downward and diagonally backward. During this conveyance, while the ball portion is suspended from the foliage, its side portion is guided by the resin guide plate (24) and is gradually pushed to the right side and gradually rises.

When the ball reaches the end of the aligning and conveying device (15) in this way, the bend of the neck is alleviated even if the foliage of the foliage does not change, and the onion is turned sideways as a whole. Then, it is released in this posture and falls on the ridge surface.

Such an operation is continuously performed for each onion pulled out while the machine is in progress, and the harvested onions are aligned in a fixed sideways posture on the ridge surface of the running trace of the machine. You.

The tip of the foliage cut off by the cutting device (14) is further conveyed upward by the pulling-out device (5), and then conveyed laterally by the foliage discharging device (32).
The aircraft is dropped to the side.

On the other hand, in the harvesting operation system, when it is necessary to cut the foliage as much as possible at the neck, the height of the cutting device (14) is adjusted to cut the foliage at the neck. Referring to FIG. 10 in detail, loosening the squaring nut (14p), displacing the body of the cutting device (14) downward along the elongated hole of the guide plate (14b), and adjusting to the desired cutting position, Again, the squaring nut (14p) and the flange (14c) of the main body are fastened and fixed to the guide plate (14b). At this time, the length of the transmission shaft (14g) is adjusted at the spline fitting (S) portion, and the universal joint (14f) and the flexible tube (1) are adjusted.
4h) is appropriately bent and smoothly operated, and the cutting blade (14r) is operated without difficulty in transmission.

In such a harvesting work system, since the foliage is cut off at the neck portion except for the holding portion of the lower transfer device (9), it is not necessary to align the balls, and the aligning transfer device (1) is not required.
5) is not only useless, but the ball portion whose foliage has been cut is not pinched by the aligning and transporting device (15), and irregular contact operation with the transport belt (18) becomes an obstacle. Is disturbed, causing problems in later collection work.
The aligning / conveying device (15) is configured to be removable. At this time, the guide rods (24a) and (24b) can be removed by loosening the guide rod adjusting bolt (24c).

[0040]

The present invention is embodied in the form described above, and has the following effects.

A cereal or rhizome crop which is provided with a weeding device for scooping up the foliage of the cereal or rhizome crop, transporting it diagonally rearward and upward, and having an adjusting device such as the weeding device for adjusting the height of the front of the machine. In the rhizome harvester, the height adjustment device is tilted backward to make the inclination angle with the ground larger than the inclination angle of the weeding device that is also tilted backward, so that the vertical displacement amount can be larger than the horizontal displacement amount. The up and down adjustment of the front of the aircraft effectively responded to the adjustment operation effectively, so that the operation of the adjustment handle, which is arbitrarily adjusted, could be facilitated.

A cereal or rhizome crop which is provided with a weeding device for scooping up the foliage of the cereal or rhizome crop and transporting it diagonally rearward and upward, and a cereal or a cereal plant provided with an adjusting device such as the weeding device for adjusting the height of the front part of the body. In the rhizome harvesting machine, the direction of expansion and contraction of the height adjusting device is directed toward the upper end of the weeding device, so that the contact point of the height adjusting device is retracted from the starting position of the action of the raising tine at the lower end of each vertically-rotated weed. Since the retreat distance can be set large, the height adjustment device does not step on the foliage that the weeding stick scoops and the raising tine raises and adjusts, thereby avoiding problems in harvesting work. done.

In addition, there is provided a weeding device that scoops and separates the foliage of cereals or rhizome crops and conveys it obliquely upward and rearward. In a rhizome harvester equipped with a device, the upper end of the height adjusting device is located closer to the upper end of the weeding device, so that it has a relativity with the action start position of the raising tine at the lower end of the weeding device. The vertical contact point of the height adjustment device could be retracted at the same time, and at the same time the vertical stroke of the vertical adjustment could be increased, so the applicability to various ridge heights depending on the cropping system and the type of rhizome crop was great. Could be provided.

[0044]

[Brief description of the drawings]

FIG. 1 is a relative side view of a weeding device and a body front height adjusting device according to a main part of the present invention.

FIG. 2 is a relative front view of a weeding device and a body front height adjusting device according to a main part of the present invention.

FIG. 3 is a side view structural explanatory view of a body front height adjusting device according to the present invention.

FIG. 4 is an overall side view of the onion harvester according to the embodiment of the present invention.

FIG. 5 is an overall plan view of the onion harvesting machine according to the embodiment of the present invention.

FIG. 6 is a plan view of the lower transport device according to the embodiment of the present invention.

FIG. 7 is a cross-sectional view of the lower transport device according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view of the aligning and conveying device according to the embodiment of the present invention.

FIG. 9 is a side view of the onion harvesting machine according to the embodiment of the present invention and a cutting device mounted thereon.

FIG. 10 is a cross-sectional view of a structure for mounting a cutting device of an onion harvesting machine according to an embodiment of the present invention.

[Explanation of symbols]

 E engine 1 weeding device 2 transmission cylinder 3 raking device 5 pull-out device 8 excavating blade 9 lower transport device 14 cutting device 15 alignment transport device 26 running wheel 29 gauge wheel 30 gauge wheel adjusting handle 33 travel transmission device 37 Body front height adjustment device 42 Support cylinder 42a Inner cylinder 42b Outer cylinder 43 Screw shaft 44 Screw top H Pull-out transport path K Lower transport path

Continuing on the front page (72) Inventor Akihito Watanabe 428 Enami, Onami, Okayama Pref.

Claims (3)

[Claims] 1. A cereal or rhizome harvesting machine comprising a weeding device for scooping and trimming the foliage of a cereal or rhizome crop, and comprising an adjusting device for adjusting the height of the front of the fuselage such as the weeding device. A height adjusting device at a front portion of a cereal or rhizome harvesting machine, wherein the height adjusting device is tilted rearward so that an inclination angle formed with a horizontal plane is larger than an inclination angle of a weeding device that is also tilted rearward. 2. A cereal or rhizome harvester provided with a weeding device for scooping and trimming the foliage of a cereal or rhizome crop, and having a telescopic adjustment device such as the weeding device for adjusting the height of the front of the machine body. 3. The height adjusting device at the front part of a cereal or rhizome harvester according to claim 1, wherein the direction of expansion and contraction of the height adjusting device is directed toward the vicinity of the upper end of the weeding device. 3. A cereal or rhizome harvester equipped with a weeding device for scooping and trimming the foliage of a cereal or rhizome crop, and having a telescopic adjusting device such as the weeding device for adjusting the height of the front of the machine body. 3. The height adjusting device for a front part of a cereal or rhizome harvesting machine according to claim 1, wherein an upper end of the height adjusting device at the front part of the body is located near an upper end of the weeding device.