JPH0661025U - Head vegetable harvester - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a compact riding-type vegetable harvester featuring a holding belt provided above a screw conveyor that harvests and conveys headed vegetables such as cabbage, Chinese cabbage, and lettuce from the field. To do. [Structure] A pair of left and right screws that pulls out from the field along with the progress of the machine while holding the rhizomes of heading vegetables vegetated in the field from both the left and right sides in the front of the machine and conveys them toward the rear of the machine. A heading vegetable harvester provided with a conveyor, wherein the above-mentioned upper position corresponding to the screw conveyor is provided with a holding belt for holding the heading vegetables conveyed by the screw conveyor while rotating, and the heading head of the holding belt. An exclusion device was installed on the outer peripheral surface in contact with the vegetables to remove the deposits adhering to the belt surface. The exclusion device was adapted to roll a sponge roller or roll brush onto the belt surface. The scavenger was a scraper type that was in contact with the moving belt surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a compact riding-type vegetable harvesting machine having a feature of a holding belt provided above a screw conveyor that harvests and conveys headed vegetables such as cabbage, Chinese cabbage, and lettuce from a field.

[0002]

[Prior art]

 Conventionally, various types of heading vegetable harvesters have been proposed for harvesting heading vegetables. For example, a pair of left and right screw conveyors that pull out from the field as the machine progresses while rotating while holding the rhizomes of heading vegetables vegetated in the field from both the left and right sides in the front of the machine and transport them toward the rear of the machine. The applicant of the present invention has proposed that a press belt is provided at an upper position corresponding to this screw conveyor.

[0003]

[Problems to be solved by the device]

 The holding belt of the above-mentioned headed vegetable harvester has a function of pressing the headed vegetable conveyed from the screw conveyor from above and stably conveying the headed vegetable together with the screw conveyor. If adhered, there was a problem that the transported bulb vegetables would be soiled. The present invention is intended to solve the above problems.

[0004]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention is as follows: (1) Pull out from the field as the machine progresses while rotating so that the rhizome of the heading vegetables vegetated in the field is pinched from the left and right sides at the front of the machine. In a headed vegetable harvester equipped with a pair of left and right screw conveyors that are conveyed toward the rear of the machine, the presser foot that holds the headed vegetables conveyed by the screw conveyor while rotating to the upper position corresponding to the above screw conveyor. A belt is provided, and an ejector for eliminating adhered matters adhering to the belt surface is provided on the outer peripheral surface of the press belt that contacts the heading vegetables.

(2) The excluding device has a structure in which a sponge roller or a roll brush is brought into contact with the belt surface, and (3) the excluding device has a scraper type in contact with the moving belt surface. Characterize each.

[0006]

[Action]

 With the above structure, the headed vegetable harvester of the present invention has the following functions. At the upper position corresponding to the screw conveyor, a presser belt for pressing the heading vegetables conveyed by the screw conveyor while rotating is provided, and the presser belt adheres to the belt surface on the outer peripheral surface in contact with the heading vegetables. Since an exclusion device is provided to remove adhered substances, the adherents adhering to the surface of the holding belt are removed by the removing device, and the heading vegetables held by the holding belt and conveyed are not contaminated.

Since the removing device is adapted to roll the sponge roller or the roll brush on the belt surface, the sponge roller or the roll brush removes the adhering matter adhering to the surface of the holding belt. Since the scraping device is a scraper type that contacts the surface of the moving belt, the scraper-shaped scraping device scrapes off the deposits on the surface of the holding belt.

[0008]

【Example】

 Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 to 4, reference numeral 1 is a headed vegetable harvesting machine, and the headed vegetable harvesting machine 1 is equipped with crawlers 2 and 2 which form a left-right pair and are capable of spin rotation. An engine 3 is mounted in the substantially central part of the fuselage between the crawlers 2 and 2, and a transmission 5 including a hydraulic pump 4 and a hydraulic continuously variable transmission (HST) is mounted at a lower position on the front side of the engine 3. Power is transmitted from the engine 3. In addition, a pair of left and right screw conveyors 6 and 6 are installed to obliquely extract the heading vegetables vegetated in the field from the lower front of the machine to the upper center of the machine through the transmission 5 and convey them backward. The screw conveyors 6 and 6 are pivotally supported at their base ends so as to move up and down on the front side. A control unit 7 is provided on the side of the engine 3.

As shown in FIGS. 5 to 10, the screw conveyors 6 and 6 rotate while holding the rhizomes of heading vegetables (eg cabbage) vegetated in the field from both left and right sides. As the process progresses, the pull-out part 6a is pulled out from the field, and the heading vegetables pulled out by the pull-out part 6a are taken over with the rhizomes sandwiched between them, and the first transfer part 6b and the second transfer part are transferred obliquely upward and rearward of the machine body. 6c and. A cutting table (processing space) 8 for manually cutting the rhizomes from the conveyed heading vegetables is provided in the central portion of the machine body facing the conveying end of the screw conveyor 6. Behind the cutting table 8, a forklift-shaped container mounting part 10 for mounting a container 9 containing the cut and cured vegetables is arranged so that the upper part approaches the cutting table 8 and the lower part separates from the cutting table 8. It is installed diagonally up and down.

The pull-out portion 6a of the screw conveyor 6 is opened in an eight shape in a plane on the front side to facilitate the introduction of the rhizome portion of the heading vegetables vegetated in the field and has a spindle shape without a screw at its tip. The guide body 11 is provided. Further, below the starting end portion of the second conveyor portion 6c of the screw conveyor 6, there is provided a cutting blade 12 for cutting the root portion of the headed vegetables conveyed by the screw conveyors 6,6. On both sides of the screw conveyors 6 and 6, there are provided supporting frames and transmission frames 14 and 14 in which the transmission shafts 13 are installed to rotatably support the screw conveyors 6 and 6, and at the front of the pull-out portion 6a. Power is transmitted through the gear transmission mechanism 15. The support frame / transmission frames 14, 14 may be provided not only on the side of the screw conveyors 6, 6 but also on the upper side thereof.

Rotational support members 16 and 16 are fixed to both sides of the rear ends of the support and transmission frames 14 and 14, and the rotation support members 16 and 16 are pivotally supported on the machine body via a rotation shaft 17. ing. A hydraulic cylinder 18 is interposed between the lower side of the support frame / transmission frame 14 and the machine body. The expansion / contraction operation of the hydraulic cylinder 18 causes the screw conveyors 6 and 6, the support frame / transmission frame 14, 14 and the like rotate about a rotation shaft 17, and the front side thereof moves up and down.

As shown in FIGS. 1 and 5, a power transmission unit 19 for transmitting power by a transmission system from the engine 3 is provided at the rear end portions of the support frame / transmission frames 14 and 14, and Power is transmitted from the section 19 to the screw conveyor drive section 20, 20 through the chain transmission system. From the screw conveyor drive units 20 and 20, via the gear transmission mechanisms 21 and 22, the transmission shafts 13 and 13 installed in the support frames and transmission frames 14 and the second transfer units 6c of the screw conveyors 6 and 6, Power is transmitted to the ends of 6c to drive the first transport units 6b and 6b from the second transport units 6c and 6c. Further, the pull-out part 6a, the first transfer part 6b, and the second transfer part 6c of the screw conveyors 6 and 6 are configured independently of each other and can be replaced independently.

The pull-out portions 6a, 6a, which receive power from the transmission shafts 13, 13 via the gear transmission mechanisms 15, 15, both rotate outward, and the screw conveyor drive units 20, 20 drive the gear transmission mechanism 21. The first and second conveying sections 6b and 6c, which are motive power transmitted through the first and second conveying sections 22 and 22, rotate inward. Further, the pulling-out section 6a, the first conveying section 6b and the second conveying section 6c rotate at rotational speeds suitable for their respective functions, and have different screw turning directions and pitches. Furthermore, as shown in FIG. 6, the screw conveyor 6 has a degree (0 to 20 degrees) in the front half of the pull-out portion 6a with respect to the horizontal line, and from the rear half of the pull-out portion 6a to the first transport portion 6b. (28 ± 5 degrees), the second transport portion 6c is bent by c degrees (45 ± 10 degrees), and the universal joints 23 and 24 are connected at the respective bent portions. Further, a bending transmission portion 25 is formed on the support frame / transmission frame 14.

Corresponding to the conveying portions of the screw conveyors 6 and 6, a holding belt 26 for pressing the conveyed headed vegetables from above is provided. The presser belt 26 connects the support frame / transmission frames 14 and 14 at the front part thereof with a gate type frame 27, and connects the gate type frame 27 and the rear ends of the support frame / transmission frames 14 and 14 to the left and right. With respect to the upper frames 29 and 30 which are connected by a pair of vertical frames 28 and 28 so as to straddle between the vertical frames 28 and 28, the rear portion of the support frame 26a is vertically and longitudinally connected by a pair of left and right link bodies 31 and 31. It is supported so as to be movable in parallel and rotatable in the direction, and the front part is elastically supported by a pair of left and right springs 32, 32. The moving speed of the presser belt 26 and the rotating speed of the screw conveyors 6 and 6, that is, the moving speed of the heading vegetables are synchronized. The link bodies 31 and 31 are not limited to the rear portion of the pressing belt 26, but may be provided in the middle portion or the front portion.

A sponge roller 33 is provided above the inclined upper end side of the presser belt 26 so as to be in contact with the outer peripheral surface of the belt which comes into contact with the heading vegetables. The sponge roller 33 may be a roll brush. Power transmission to the presser belt 26 is performed from the shaft end of the screw conveyor drive unit 20 via a flexible tube (transmission mechanism) 34. Further, power transmission to the cutting blade 12 is also performed from the machine body side through a flexible tube (transmission mechanism) 35. The pressing belt 26 can move up and down and back and forth within a predetermined range with respect to the screw conveyors 6 and 6, and the entire harvesting and conveying section 36 constituted by the pressing belt 26 and the screw conveyors 6 and 6 can rotate. The front side can be moved up and down by turning around the moving shaft 17.

A pair of left and right guide wheels 37, which come into contact with both sides of the headed vegetable ridge and follow the pulling reaction force of the headed vegetable, are provided near the pulling-out portions 6a, 6a of the screw conveyors 6, 6. 37 are provided. The guide wheel 37 is connected and supported by a vertical adjustment mechanism 38 provided between the upper frame 29 and the gate-shaped frame 27 via a connecting member 39, and the left and right widths can be adjusted, and the camber can be adjusted. Have horns. Then, as the machine runs, guide wheels 37, 37 roll on both sides of the heading vegetable ridge to automatically steer the machine, and a single operator operates (turns) at the field edge and cuts at the cutting table 8. Enable work and. Further, the vertical movement adjustment and the horizontal width adjustment of the guide wheels 37, 37 are performed according to the height and width of the heading vegetable cultivation ridge.

Behind the control unit 7, on the side of the cutting table 8, a step 40 on which an operator rides is provided, and a seat 41 is provided at a part thereof. Most of the harvesting work is performed by the guide wheels 37, 37 contacting both sides of the heading vegetable ridge, except for the operation (steering) operation by the control unit 7 when turning at the edge of the field. Then, the steering operation is performed almost automatically, and the worker is exclusively conveyed by the screw conveyors 6 and 6 and the presser belt 26, and from the head end vegetables discharged from the end of the conveyance to the cutting table 8 with a knife or the like. I am trying to cut off the rhizome. The cut and headed vegetables are contained in the container 9 placed on the container placing section 10.

In the container mounting portion 10, two fork-shaped mounting bases are provided on the inclined frame 42 formed of a pair of left and right channel members, which are provided in the front of the cutting base 8 in a forwardly inclined shape, although not shown. It is connected to the hydraulic cylinder 43 via a roller and a chain, and is supported so as to be able to move up and down by the expansion and contraction operation of the hydraulic cylinder 43, which constitutes a lift device. Then, the container 9 containing the bulb vegetables whose roots and roots have been cut is placed, and the container 9 is moved up and down according to the stored amount, and is also used for cargo handling work of the container 9. The container 9 used here is large enough to accommodate about 200 kg of headed vegetables. Further, the container mounting portion 10 has a structure that can be housed on the side of the machine body by rotating upward from the base end portion thereof.

In the transmission 5 that receives power from the engine 3 to change gears, a hydraulic continuously variable transmission (HST) that continuously changes gears and a speed change gear are used to perform continuous and stepless speed change, and a side clutch, The power transmission is connected and disconnected via a differential device so that the crawlers 2 and 2 can travel continuously and stepwise. Further, a brake device is provided in association with the differential device. When the steering lever is operated to a large extent, the side clutch, differential mechanism, and brake are operated to spin the aircraft.

The rotation speed and movement speed of the screw conveyors 6, 6 and the presser belt 26 can be adjusted continuously and stepwise, and combined with stepless or stepwise variable speed running of the crawlers 2 and 2. By doing so, the harvesting speed of headed vegetables can be set freely. Further, the screw conveyors 6 and 6 and the pressing belt 26 are in a state in which the hydraulic cylinder 18 is extended to rotate the rotating shaft 17 about the center and to rotate the tip end side during traveling on the road or turning work at the end of the field. This makes it easier to drive on the road and makes headland turn in a smaller area.

Next, the operation of the headed vegetable harvester 1 configured as described above will be described. The heading vegetable harvesting machine 1 adjusts the guide wheels 37, 37 up and down by the up-down adjusting mechanism 38 in accordance with the cultivation ridge when performing harvesting work in a field where cabbage, which is a heading vegetable, is cultivated. Adjusting the left and right width, the hydraulic cylinder 18 is contracted to lower the front part of the harvesting and transporting section 36, and the guide wheels 37 and 37 are in contact with both sides of the cultivation ridges. Rotate and drive the aircraft with the rollers 2 and 2. Then, the machine body is almost automatically steered by the guide wheels 37, 37, and the heading vegetables vegetated in the cultivation ridges are clamped from both sides by the pull-out portions 6a, 6a of the screw conveyors 6, 6. Then, it is pulled out by the outward rotation and the traveling of the aircraft, and sent to the rear.

Since the guides 11, 11 are provided at the tips of the pull-out portions 6a, 6a, they can be easily introduced into heading vegetables, and the weeds growing in the field can be attached to the rotating pull-out portions 6a, 6a. And the like are prevented from being wrapped around. The heading vegetables pulled out by the pull-out portions 6a, 6a are taken over by the first transporting portions 6b, 6b rotating inward, and then by the second transporting portions 6c, 6c, and rise at a steep angle toward the rear of the machine. , Transported. During this conveyance process, the heading vegetables are pressed from above by the pressing belt 26 and move in a stable posture, and the roots of the heading vegetables are cut by the cutting blade 12 during the movement.

The front end of the presser belt 26 is suspended by an upper frame 29 by a spring 32, and can be vertically moved and moved in parallel by a link body 31, and a portion corresponding to the screw conveyors 6 and 6 can accurately produce a headed vegetable. Hold it down to correct the posture and carry it securely. Further, since the power transmission to the presser belt 26 is performed by the flexible tube 35, the presser belt 26 can freely move up and down and move in parallel within a predetermined range. Even if soil in the field adheres to the surface of the pressing belt 26, it is removed by the sponge roller 33 or the roll brush, and soil is adhered to the headed vegetables held by the pressing belt 26. The quality of headed vegetables can be improved and damage can be prevented.

In the harvesting and conveying section 36 such as the screw conveyors 6 and 6 and the presser belt 26, the rear ends of the supporting frames and transmission frames 14 and 14 are rotatable by a rotating shaft 17, and the front end side thereof is a guide wheel. Since it is supported by 37, 37, the front side of the screw conveyors 6, 6 is extremely lightly supported, and in the floating state, it can quickly follow irregularities in the field and perform highly accurate harvesting work. it can. Further, the power transmission to the cutting blade 12 is also performed from the machine body side through the flexible tube 35, so that the vertical movement of the entire harvesting and conveying section 36 is smoothly performed, and a stable harvesting operation is performed.

The heading vegetables discharged from the transport end portions of the clew conveyors 6 and 6 are placed on the cutting table 8. Then, the worker cuts the stem trunk and lower leaves from the heading vegetables with a kitchen knife and processes them. The cut stem stem and lower leaves are released to the field. The cut and headed vegetables are stored so as to be put into the container 9 placed on the container placing section 10. At this time, when the amount of headed vegetables stored in the container 9 is small, the container placing part 10 is raised and lowered as the amount is increased, so that damage caused when the headed vegetables are dropped or dropped can be reduced. You can

Since the container mounting part 10 is configured to move up and down in an oblique direction with respect to the machine body by the hydraulic cylinder 43, the container placement part 10 is moved up and brought close to the machine body side to move the machine body center of gravity toward the center of the machine body. And stable running performance can be obtained. When the heading vegetables in the container 9 are full, the harvesting operation is temporarily interrupted, and the front side of the harvesting and transporting section 36 is lifted by the hydraulic cylinder 18 and the machine is finished on the ridge or at the end of harvesting. Then, the container placing section 10 lowers the container 9, places a new container 9 and restarts the harvesting work. The headed vegetables in the unloaded container 9 are packed in a box by another worker and shipped.

Here, the headed vegetable harvester 1 has a transmission 5 in front of the crawlers 2 and 2, an engine 3, a control unit 7 and a processing space 8 in a substantially central portion, and a container mounting portion in a rear side. By arranging 10, the front-rear and left-right balance of the machine is improved, workability and work accuracy are improved, and the runnability, turning performance, and stability of the machine are improved. In addition, the crawlers 2 and 2 are configured to be spin-turnable, and the transmission 5 is arranged in the center of the front side of the machine body. Therefore, when the machine body spin-turns, it can rotate in either left or right direction with good balance. it can. Therefore, the crawlers 2 and 2 do not greatly scrape the soil in the field.

The screwing directions 6a, 6b and 6c of the screw conveyors 6 and 6 of the above-described embodiment are set so that the spiral direction, pitch and rotation direction, and the number of rotations are suitable for their respective functions. Therefore, the heading vegetables are properly extracted and transported. Further, since the pull-out part 6a and the first transfer part 6b and the second transfer part 6c are driven by different power transmission systems, it is possible to change the respective rotation speeds, and it is possible to adjust them more appropriately. You can also do the work. Furthermore, since the pull-out section 6a, the first transport section 6b, and the second transport section 6c are each composed of a plurality of units, if any of them is damaged, replace only the damaged one. Good.

Instead of the sponge roller 33 or the roll brush, a scraper 33a as shown in FIG. 11 may be used. The scraper 33a is made of synthetic resin, hard rubber or the like, and the brush 33b is provided at the trailing edge of the pressing belt 26 in the moving direction, but the scraper 33a itself may be a fixed brush or a brush. . In the case of this embodiment as well, like the sponge roller 33 or the roll brush, it is possible to eliminate dirt and the like adhering to the surface of the pressing belt 26.

[Effect of device]

 As explained above, the heading vegetable harvester of the present invention has the following effects. At the upper position corresponding to the screw conveyor, a presser belt for pressing the heading vegetables conveyed by the screw conveyor while rotating is provided, and the presser belt adheres to the belt surface on the outer peripheral surface in contact with the heading vegetables. Since an exclusion device is provided to remove adhered substances, the adherents adhering to the surface of the presser belt are removed by an expulsion device, and the headed vegetables that are pressed and conveyed by the presser belt are not contaminated and the quality of the connected vegetables is improved. It is possible to improve and prevent damage.

Since the excluding device is adapted to roll the sponge roller or the roll brush on the belt surface, the adhering matter adhering to the surface of the holding belt is removed by the sponge roller or the roll brush and does not adhere to the headed vegetables. Since the excluding device is a scraper type that makes contact with the moving belt surface, remove the adhered matter that has adhered to the surface of the presser belt by scraping it off with a scraper, brush, brush, etc., and attach it to the heading vegetables. There is no.

[Brief description of drawings]

FIG. 1 is a perspective view of an entire headed vegetable harvester according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of the same.

FIG. 5 is a plan view of a screw conveyor portion.

FIG. 6 is a side view of the same.

FIG. 7 is a sectional view of an arrow A portion of FIGS. 5 and 6;

FIG. 8 is a cross-sectional view taken along arrow B in FIGS. 5 and 6.

9 is a sectional view of an arrow C portion in FIGS. 5 and 6. FIG.

FIG. 10 is a cross-sectional view taken along arrow D in FIGS. 5 and 6.

FIG. 11 is a perspective view of an entire headed vegetable harvester showing another embodiment of the present invention.

[Explanation of symbols]

1 Balloon Vegetable Harvester 2 Crawler 3 Engine 4 Hydraulic Pump 5 Transmission 6 Screw Conveyor 6a Extraction Part 6b First Transfer Part 6c Second Transfer Part 7 Control Part 8 Cutting Table (Processing Space) 9 Container 10 Container Placement Part (Lift Device) ) 11 guide body 12 cutting blade 13 transmission shaft 14 support frame and transmission frame 15, 21, 22 gear transmission mechanism 16 rotation support member 17 rotation shaft 18, 43 hydraulic cylinder 19 power transmission unit 20 screw conveyor drive unit 23, 24 Universal joint 25 Bending transmission part 26 Holding belt 26a Support frame 27 Gate frame 28 Vertical frame 29,30 Upper frame 31 Link body 32 Spring 33 Sponge roller (or roll brush) 33a
Scraper 33b Brush 34,35 Flexible tube (transmission mechanism) 36 Harvesting and transporting section 37 Guide wheel 38 Vertical adjustment mechanism 39 Connecting member 40 Step 41 Seat 42 Tilt frame a to c Angle of inclination with horizontal plane

Claims (3)

[Scope of utility model registration request] 1. A pair of left and right that transports toward the rear of the machine body while advancing the machine body while rotating while holding the rhizomes of the heading vegetables vegetated in the field from the left and right sides of the machine body front part. In the headed vegetable harvester provided with the screw conveyor, the pressing belt for pressing the headed vegetables conveyed by the screw conveyor while rotating is arranged at the upper position corresponding to the screw conveyor, and the headed vegetables of the holding belt are arranged. A heading vegetable harvesting machine, which is provided with an excluding device for excluding adherents adhering to the belt surface on the outer peripheral surface in contact with. 2. The head-mounted vegetable harvesting machine according to claim 1, wherein the excluding device is configured such that a sponge roller or a roll brush is brought into contact with the surface of the belt. 3. The headed vegetable harvester according to claim 1, wherein the excluding device is a scraper type that is in contact with the surface of the moving belt.