JP3412783B2 - Partition cover for self-propelled root vegetable harvester - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partition cover of a self-propelled root vegetable harvesting machine which mechanically harvests root vegetables, particularly carrots, and sorts the root vegetables by a sorting conveyor. About. 2. Description of the Related Art Conventionally, a self-propelled root vegetable harvesting machine for harvesting radish, ginseng and the like has been known. A pull-out conveyor is arranged in parallel, a digging device consisting of a hoe-shaped subsoiler is placed at the front of this pull-out conveyor, and this digging device is inserted into the soil, and the root vegetables are placed below the soil. Digging up and pulling out the root vegetable leaf part from both sides with the belt of the pull-out conveyor, pulling out the root vegetable while conveying it diagonally upward, disposing a cutter at the rear end of the transport section, and using the cutter to remove the root part of the root vegetable leaf The root vegetables that have been cut and dropped on the lower conveyor,
It is configured to be conveyed to the side by a lateral feed roller and transferred to a sorting conveyor, and the sorted root vegetables are stored in a storage container by the sorting conveyor. [0003] In a conventional root vegetable harvesting machine, the lower conveyor and the lateral feed roller are disposed immediately beside the sorting conveyor, and sorting operation is performed behind the sorting conveyor. To be located. If the worker accidentally puts his hand toward the lower conveyor, the transport of the root vegetables by the traverse rollers is disturbed, and the root vegetables are sandwiched between the traverse rollers and the lower conveyor, and the power of the traverse rollers is reduced. An excessive load was applied to the transmission mechanism, which could cause a failure. In addition, when the root vegetables are conveyed by the lower conveyor or the lateral feed roller, they may jump and fly to the operator side, and the conveyance or sorting operation may be disturbed. The present invention uses the following means in order to solve the above problems. That is, in a configuration in which the root vegetables are dug up and transported backward to cut the leaves of the root vegetables, and the roots after the cutting of the leaves are sorted and stored in the storage container, the root conveyor after the cutting is separated from the lower conveyor. A partition cover is arranged between the sorting conveyors, the partition cover is hung rotatably, and a sensor for detecting that the partition cover has turned to the lower conveyor side is provided near the partition cover, The sensor was linked to the engine stop. Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an overall side view of a self-propelled root vegetable harvester of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a front view of a scraping belt, FIG.
FIG. 6 is a rear view showing a direct transport device provided with the partition cover of the present invention, FIG. 6 is a plan view showing the direct transport device also provided with the partition cover of the present invention, and FIG. 7 is a lateral view provided with a torque limiter. FIG. 8 is a side cross-sectional view of the sorting conveyor, showing a partial cross-sectional view of a feed roller. Referring to FIGS. 1 and 2, the overall construction of a self-propelled root vegetable harvesting machine, particularly a root vegetable harvesting machine mainly for ginseng harvesting will be described. First, a crawler-type traveling device 2 is disposed below a horizontally arranged main frame 1, and a driving operation unit A is disposed on the right front (right side in the traveling direction) of the main frame 1. I have. The driving operation section A has a front column 4 standing upright, and an operation lever 5 for projecting and excavating the apparatus F at the same time protrudingly provided above the front column 4, and an accelerator lever 15 on the side. Have been. A side column 3 is erected on the side of the front column 4, and a main transmission lever 12, an auxiliary transmission lever 13, and a work clutch lever 14 protrude from the side column 3. An operator's seat 7 is provided behind the front column 4 and an engine room is provided below and below the front column 4. An engine E is built in the engine room.
Covered by A container table 8 is mounted on the upper part of the engine cover 6. [0007] Then, root vegetables are dug on the left side of the traveling machine,
A mechanism for transporting rearward and cutting the leaf portion, and a mechanism for accommodating the root portion in the container 10 at the rear portion are provided. That is, the raising device 4 is moved from the left front portion of the main frame 1
0, gauge wheel 4 for setting the height of the drawing conveyor 30
3. A lifting device 41 for lifting the root portion of the root vegetable, a digging device F for digging up the root vegetable in the soil below the root portion, and a leaf portion of the root vegetable digged from the rear portion of the raising device 40 to be conveyed. Pulling conveyor 30, pulling conveyor 30
A lower part conveyor 48 and a horizontal feed roller 49 are arranged below the cutting part 47, and a sorting conveyor 50 for conveying to a container is arranged beside the cutting part 47. [0008] Each of the series of root vegetable harvesting apparatuses will be specifically described. First, the excavating device F is provided with rotating fulcrum shafts 20 and 21 on the upper and lower portions of the front end of the main frame 1.
The rear portions of the upper link 22 and the lower link 23 are pivotally supported by the pivot shafts 20 and 21, respectively, and the front portions of the upper link 22 and the lower link 23 are pivotally connected to the bracket 25. . The upper link 22 and the lower link 23 form a parallel link, and the upper end of the subsoiler 24 is fixed to the bracket 25. At the rear end of the lower link 23, an arm 26 is provided.
The lift cylinder 27 is connected to a lift cylinder 27 composed of a hydraulic cylinder, and can be raised and lowered by operating the lift cylinder 27. An eccentric cam is interposed between the rear portion of the upper link 22 and the rotation fulcrum shaft 20, and the rotation fulcrum shaft 20 can be driven from an output pulley 29 of the engine via a clutch and a belt. Thus, the subsoiler 24 can be driven to vibrate, and the ground is vibrated from below the root vegetable to lift the root vegetable and facilitate pulling out. The rear portion of the drawing conveyor 30 is supported by a conveyor support frame 31, and the conveyor support frame 31 is supported by a support 32 projecting upward from the main frame 1. The support body 32 includes a left-right rotation shaft 3
It is an integral component member composed of 2a and a vertical rotation shaft 32b. The pulling-out conveyor 30 is turned up and down by using the elevation of the excavating device F so that the pulling-out height can be changed or lifted. The pull-out conveyor 30 is provided with the transfer frame 3
0L and 30R are arranged in parallel in the front-rear direction and inclined at the front low and rear high, and the rear lower surfaces of the transport frames 30L and 30R are supported by the conveyor support frame 31, and pulleys 33 are provided at both front and rear ends of the transport frames 30L and 30R.・ 33
, And guide pulleys 34
・ The conveyor belts 30a
On the lower surface of the drawing conveyor 30 from the middle to the rear, there is provided an auxiliary conveyance conveyor 36 in which a pair of left and right conveyance belts are wound to hold the root portion of the leaves. A scraping belt 37 is disposed above the front end of the drawing conveyor 30 to scrape the leaves of the root vegetables. The configuration of the scraping belt 37 will be described with reference to FIGS. The scraping belt 37 is composed of a belt 39 having tines 38 and a scraping wheel 70 in a disk shape. The pulling shaft 33 of the pulley 33 disposed at the front end of the pull-out conveyor 30 is projected upward to pivotally support the pulley 72 at a position immediately above the pulley 33, and a plurality of fixing portions 67 are provided from the upper surface of the pulley 33.・ 67 ・
The pulley 72 is fixed to the upper part so that the pulley 72 and the pulley 33 rotate integrally. The scraping wheel 70 is fixed to the lower surface of the pulley 72. The scraping wheel 70 has a disk shape in a plan view, and has an outer peripheral surface shaped like a saw blade as shown in FIG. Further, the pivot shaft 71 is protruded upward, and a raking belt cover 73 is fixedly provided at the upper end, and a tension pulley 74 is pivotally supported at the front end of the raking belt cover 73. The tension pulley 74 and the pulley 72 are wound around the belt 39. The belt 39 has a plurality of tines 38 projecting outward. That is, the tines 38, 38,... Of the left and right scraping belts 37, 37 are projected so as to face each other.
The leaves that have been lifted upward by the raising device 40 are guided between the belts at the leading ends of the left and right drawing conveyors 30. The connecting arm 55 protrudes forward from the squeezing belt cover 73 of the squeezing belt 37, and the elevating device 40 is fixedly mounted so as to be vertically adjustable. The raising device 40 winds a belt projecting the tines 40a, 40a,. The pulling device 41 is fixedly provided by projecting the connecting plate 56 forward from the raising device 40. Like the raising device 40, the pulling device 41 arranges belts protruding the tines 41a, 41a,... Vertically on the front and rear surfaces so as to pull up the leaves from both left and right sides of the harvesting strip. . A gauge wheel 43 is arranged on the front side of the raising device 40. This gauge wheel 43
It is rotatably supported at the tip of a support arm 42 projecting to the side of the raising device 40. The gauge wheel 43 is configured to be vertically adjustable on the support arm 42, and when the height of the crawler and the gauge wheel 43 are different, for example, a pretreatment device including a raising device 40 and a pulling device 41; The height of the drawing conveyor 30 can be adjusted, and the holding position of the leaf portion of the root vegetable can be adjusted. Further, a single raking shaft 57 is supported at the upper end of the raising device 40, and a double raking shaft 58 is supported at the upper end of the lifting device 41. On the other hand, a power transmission case 59 is disposed on the side of the body in the front-rear direction. At the rear part of the power transmission case 59, a rotation fulcrum shaft 60 is supported, and at the front part of the power transmission case 59, the outer ends of the single-screw shaft 57 and the double-screw shaft 58 are supported. Then, the power of the rotary fulcrum shaft 60 is transmitted to the single-screw shaft 57 and the double-screw shaft 58 that support the inside of the transmission case 59 forward via a sprocket and a chain,
The belts of the raising device 40 and the lifting device 41 are rotated. At the rear of the pull-out conveyor 30 and the auxiliary transport conveyor 36, a leaf discharge conveyor 44 extends horizontally rearward in the front-rear direction. In the middle of the auxiliary transport conveyor 36, a horizontal conveyor 45 extends rearward in the front-rear direction horizontally, and an upper guide body 46 for guiding root vegetables is arranged below the horizontal conveyor 45, A cutting portion 47 is arranged at the rear end of the upper guide body 46. In this way, the root portion of the root vegetable transported by the auxiliary transport conveyor 36 is taken over by the horizontal conveyor 45, transported rearward while the upper end of the root portion of the root vegetable is positioned, cut by the cutting portion 47, and the root portion is disposed below. The leaves are dropped on the lower conveyor 48 provided, and the leaves are conveyed to the leaf discharge conveyor 44, and fall through the remaining leaves discharge path 68a formed at the rear to the field scene. The remaining leaf discharge passage 68a is formed at the rear of the cover 68 on which the drawing conveyor 30, the horizontal conveyor 45, and the leaf discharge conveyor 44 are mounted. As shown in FIGS. 5 and 6, the lower conveyor 48 constituting the orthogonal conveyor is composed of a wide belt conveyor. The lower conveyor 48 is disposed horizontally from the rear lower part of the auxiliary conveyor 36 to the rear. A transverse feed roller 49 is disposed in an oblique direction on the middle of the 48.
The root conveyor is driven by the lower conveyor 48 so as to be sent backward, and the lateral feed roller 49 is rotated in the opposite direction in accordance with the feed, so that the root vegetables are arranged so as to fall on the front part of the lateral feed roller 49. The root vegetables are caused to fall onto the sorting conveyor 50 on the side by the rotation of the lateral feed roller 49 and the conveyance drive of the lower conveyor 48. The sorting conveyor 50 comprises a wide roller conveyor 85 arranged at the rear of the machine in the left-right direction so as to remove the soil adhering to the root vegetables while sending it to the side. Further, a container mounting table 54 is disposed below the terminal end of the sorting conveyor 50, and the container 10 is mounted on the container mounting table 54. Also, container stands 53, 53,... Are arranged on the side of the machine so that a container full of root vegetables or an empty container can be placed. Next, a power transmission configuration to the orthogonal transport device will be described with reference to FIGS. An input pulley 69 is disposed on the front side of the lower conveyor 48 and receives power from the engine E via a belt or the like. As shown in FIG. 6, the input pulley 69 is fixed to a drive shaft 75 for driving the lower conveyor 48 at the front end of the lower conveyor 48. On the drive shaft 75, a first drive case 77 is provided on the right side of the lower conveyor 48, and a second drive case 76 is provided on the left side. The sorting conveyor 50 is driven via a bevel gear or the like inside the second drive case 76 as described later. The roller shaft 78 is driven from the drive shaft 75 via a bevel gear or the like in the first drive case 77 to
Is rotating. The roller shaft 78 lays the upper surface of the lower conveyor 48 in a diagonal direction, and the roller shaft 78
A bevel gear 79 for obtaining power from the first drive case 77 is fitted to a front portion of the drive shaft 77, and a torque limiter 80 is disposed in the vicinity of the bevel gear 79, and is pivotally connected to the roller shaft 76 via the torque limiter 80. Traversing roller 4
9 to the power. As shown in FIG. 7, the torque limiter 80 has a chrysanthemum seat-shaped engaging portion 81 fitted to the roller shaft 78.
a and 81b and a compression spring. The engaging portion 81b on the rear side has a meshing surface formed on the front surface, and is integrally fixed on the rear surface with the lateral feed roller 49, and is rotatably supported by the roller shaft 78. On the other hand, the front engaging portion 81a is spline-fitted to the roller shaft 78 and is configured to be slidable in the front-rear direction. A meshing surface is formed on the rear surface of the engaging portion 81a. The torque limiter 80 is formed by externally fitting the roller 82 to the outer peripheral surface of the roller shaft 78 and biasing the engaging portion 81a forward. Therefore, the power of the roller shaft 78 is transmitted to the lateral feed roller 49 via the torque limiter 80. Then, the lateral feed roller 49 and the lower conveyor 4
When a load is applied to the lateral feed roller 49 due to a root vegetable or the like being sandwiched between the compression spring 82 and the engaging member 81, the engaging portion 81a resists the urging force of the compression spring 82, as shown in an engaging portion 81a 'shown in FIG. The roller slides forward, disengages, the roller shaft 78 and the engaging portion 81a idle, and no power is transmitted to the engaging portion 81b, and the rotation of the lateral feed roller 49 stops. Therefore, it is easy to take out the sandwiched root vegetables, and at the same time, no excessive load is generated in the power transmission structure. Next, the structure of the sorting conveyor 50 will be described with reference to FIGS. 5, 6, and 8. FIG. The sorting conveyor 5
Reference numeral 0 denotes a configuration supported by a frame 86 provided below. A fixing plate 87 extending in the left-right direction on the frame 86
・ 87 is fixed to the front and back parallel to the left and right direction. A drive roller 88a for winding a roller conveyor 85 and a driven roller 89 are disposed at the left and right ends of the fixed plates 87, 87. The drive roller 88a has a drive shaft
8 and a drive pulley 8 is provided at the front end of the drive shaft 88.
8b is fixed. The drive pulley 88b transmits the power of the drive shaft 88 in the drive case 76 via a pulley or a belt via a bevel gear or the like, and rotates the drive shaft 78 to rotate the roller conveyor 85.
Is driving. Further, at the spatial position between the upper surface and the lower surface of the roller conveyer 85, tension rollers 93 are disposed substantially at the center in the left-right direction as shown in FIG. The tension rollers 93 are pivotally supported on a support shaft 94 having a shaft center in front and back, and support both ends of the roller conveyor 85 as shown in FIG. Also, as shown in FIG.
The upper portion of the mounting portion 87 is bent inward in a substantially V-shape when viewed from the side.
a. A rubber drip 95 formed of an elastic body such as rubber is mounted on the upper surface of the mounting portion 87a, and covers both ends in the rotation direction of the roller belt 85 in plan view as shown in FIG. For this reason, the root vegetables are conveyed in a state where they protrude downward from the gap between the adjacent rollers of the roller belt 85 to prevent the root vegetables from contacting the tension rollers 93 or being pinched and prevented from being scratched. . Further, a cover 64 is provided so as to cover the rear surface of the sorting conveyor 50, and a safety lever 52 which is longer than the lower portion of the cover 64 in the machine width direction is protruded rearward and upward. The safety lever 52 is rotatably connected to a switch or a wire for stopping the engine at the rotation base of the safety lever 52 so that the engine stops when the safety lever 52 is rotated forward. A clutch lever 51 for stopping the sorting conveyor 50 is provided on the right side of the upper portion of the cover 64.
Protruding from the rear of the fuselage,
The sorting conveyor 50 can be stopped by an auxiliary worker who replaces the container 10 full of root vegetables on the side of the machine body. Further, a pivot 16 is protruded below the right end of the sorting conveyor 50, and the orthogonal transport device is rotated backward as shown at 48 'and 50' in FIG. It is configured to be easy to do. Next, the partition cover 19 according to the present invention will be described with reference to FIGS. The lower conveyor 4
Above 8, a horizontal conveyor 45 and a leaf discharge conveyor 44 covered by the cover 68 are provided. On the right side of the cover 68, the hinge 18 is located above the starting end of the sorting conveyor 50 (the transfer position from the lower conveyor 48 to the sorting conveyor 50).
Is arranged. A partition cover 19 is attached to the hinge 18, and the partition cover 19 is pivotally connected to the hinge 18 so as to be rotatable left and right. The lower end of the partition cover 19 is arranged at a predetermined interval from the upper surface of the lower conveyor 48. Therefore, the lower cover 48 and the side portions of the lateral feed roller 49 are covered with the partition cover 19,
The root vegetables pass through the space below the partition cover 19 and are passed on to the sorting conveyor 50. In the lower part of the cover 68,
A switch (or sensor) S is disposed near the hinge 18, and the contact point of the switch S is located at the rotation base of the partition cover 19, and moves leftward (the lower conveyor 48 and the lateral feed roller 49). Side), the hinge 18 or the partition cover 19 abuts and the switch is turned on. However, the switch S may be an optical sensor, a proximity sensor, or the like as long as the switch S can detect the rotation of the partition cover 19. The switch S is connected to a stop device of the engine E, like the safety switch 52, so that the engine E stops when the switch S is turned on. When the hand comes into contact with the 49 side, the partition cover 19 rotates and the switch S is turned on.
Then, the engine E stops. The present invention is configured as described above.
The following effects are obtained. In other words, in the sorting operation, when an operator's hand or another obstacle is likely to enter the lower conveyor and the traverse roller side by mistake,
The sensor is turned on and the engine is stopped when it comes into contact with the partition cover. It is possible to prevent in advance that a load is applied to the drive transmission configuration of the roller and a failure occurs. Further, even if root vegetables and the like jump during transportation on the lower conveyor, they do not fall to the sorting conveyor side and hinder the sorting operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a self-propelled root vegetable harvester of the present invention. FIG. 2 is a plan view of the same. FIG. 3 is a front view of a scraping belt. FIG. 4 is a side sectional view of the scraping belt. FIG. 5 is a rear view showing the orthogonal transport device provided with the partition cover of the present invention. FIG. 6 is a plan view showing a direct conveyance device provided with a partition cover according to the present invention. FIG. 7 is a partial cross-sectional plan view showing a traverse roller provided with a torque limiter. FIG. 8 is a side sectional view of a sorting conveyor. [Description of Signs] S Switch E Engine 19 Partition Cover 48 Lower Conveyor 50 Sorting Conveyor

Continuation of the front page (72) Keita Uekubo, Inventor Keita 1-32, Kitaya-ku, Osaka City, Osaka Yan Ma Agricultural Machinery Co., Ltd. (72) Inventor Tomoyoshi Hirose 1-32, Chaya-cho, Kita-ku, Osaka City, Osaka Ma Agricultural Machinery Co., Ltd. (72) Inventor Akito Yamamoto 1-32 Chaya-cho, Kita-ku, Osaka, Osaka Yang Ma Agricultural Machinery Co., Ltd. (72) Inventor Hideki Nishimura 1-32, Chaya-cho, Kita-ku, Osaka, Osaka (56) References JP-A-6-169620 (JP, A) JP-A-7-34618 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] [Claim 1] In a configuration in which root vegetables are dug up, conveyed backward, cut the roots of the root vegetables, and sorted into roots after cutting the leaves, and stored in a storage container. A partition cover is arranged between the lower conveyor that conveys the rear root portion and the sorting conveyor that performs sorting, the partition cover is hung rotatably, and the partition cover is rotated to the lower conveyor side near the partition cover. A partition cover for a self-propelled root vegetable harvesting machine, wherein a sensor for detecting the occurrence of the occurrence is provided, and the sensor is interlocked with an engine stop device.