JPH1127A - Stem cutter for mobile type stem treating machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide stem cutters for a mobile type stem treating machine capable of preventing potatoes on the adjacent ridge from being dug up and improving the cutting efficiency and safety by installing stem cutters and cutter covers at the rear of grass dividing guides. SOLUTION: The stem cutters C for a mobile type stem treating machine A are obtained by installing grass dividing guides 43 on the left and right sides of the front end of a machine body, arranging the stem cutters C for respectively cutting stems on ridges at the rear of the left and right grass dividing guides 43 and further installing cutter covers 80 for covering the stem cutters C so as to enable the opening and closing of the stem cutters C in the mobile type stem treating machine A capable of pulling out and discharging stems while traveling. The left and right stem cutters C and the cutter covers 80 are preferably composed so as to respectively independently enable the opening of the cutter covers 80 and driving of the stem cutters C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for removing stems of potatoes and potatoes cultivated from high ridges or flat ridges from the roots.
The present invention relates to a traveling stalk processor that can be picked up by a transfer device and collected on a side of a ridge remote from the ridge.

[0002]

2. Description of the Related Art Conventionally, a traveling stalk processor that stalks potatoes, potatoes, and the like with a scraping device and pulls up the stalks with a nipping and transporting device to tear between a potato in a ridge and the stalks is the same. An earlier application has been filed by the applicant. In this traveling stalk processor, a stalk cutting device for cutting stalks is provided at the front end of the body, and a cutting device cover for covering the cutting blade is attached to the stalk cutting device so as to be openable and closable. Also,
A digging plate that passes through the inside of the groove between the ridges and digs a stalk rooted in the groove was provided at the front lower end of the stalk cutting device.

[0003]

However, in the cutting device of the traveling stalk processing machine as described above, a digging plate is provided only at the lower end of the cutting device, and an upper portion of the cutting device is provided. Since the member to guide was not arranged, if the stems on the ridges are protruding above the cutting device and are intertwined with each other, cutting of the stem by the stem cutting device or scraping by the scraping device, Was not done well. Further, since the stem cutting device and the cutting device cover are provided only on one of the right and left sides of the body, when it is necessary to cut the stems of the grooves on both sides of the ridge, for example, when performing stalk processing work from the ridge at the center of the field Had to go back and forth on the same ridge.

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, in a traveling stalk processor that pulls out and discharges stalks while traveling, a stalk cutting device for providing a weeding guide at the front end of the machine body and cutting a stalk on a ridge behind the weeding guide; And a cover.

In a traveling stalk processor that pulls out and discharges stems while traveling, weeding guides are provided on the right and left sides of the front end of the machine body, and stalks on ridges are cut on the left and right sides behind the weeding guides. A stem cutting device and a cutting device cover that covers the stem cutting device so that the stem cutting device can be opened and closed are provided.

In a traveling stalk processor for pulling out and discharging stalks while traveling, a stalk cutting device for cutting stalks on a ridge and a cutting device cover for opening and closing the stalk cutting device are provided on the left and right sides of the front end of the machine. And the left and right stem cutting devices and the cutting device cover are configured such that the cutting device covers can be opened independently to drive the stem cutting device.

[0007]

Next, an embodiment of the present invention will be described. FIG. 1 is an overall side view showing a traveling stalk processor equipped with a weeding guide of the present invention, FIG. 2 is an overall plan view thereof, and FIG. 3 is a sectional view showing a pivot point for pivotally supporting a stalk processing mechanism. 4 is a side view of a transmission case arranged on the side of the engine, FIG. 5 is a rear cross-sectional view of a rotation center gear case, FIG. 6 is a cross-sectional view showing a crank mechanism for driving a stalk cutting device, FIG. FIG. 8 is a side view showing the weeding guide, and FIG.

First, an overall configuration of a traveling stalk processor as an embodiment of the present invention will be described. 1 and 2, a traveling mechanism B mainly includes left and right traveling wheels 11, an engine E, and a steering wheel H. A transmission case M is fixedly provided on the left side in the traveling direction of the engine E, and a crankshaft of the engine E transmits power to the inside of the transmission case M. After shifting within the transmission case M, power is transmitted to the traveling wheels 11 via the traveling drive case 13. A traveling frame 19 that supports the traveling mechanism B is provided from the engine E and the transmission case M to the front end of the fuselage. Excavation plates 16 and 16 and guide wheels GG provided on the left and right are It is supported by the traveling frame 19. A pivot point P is provided at an intermediate portion of the traveling frame 19 in the front-rear direction, and a stalk processing mechanism A including a raking device 14, a ridge pressing roller mechanism T, a nipping and conveying device F, and the like,
It is configured to be able to turn up and down around the pivot point P.

A front end of the traveling drive case 13 is mounted on a wheel height frame 17 projecting downward from the traveling frame 19 so as to be vertically adjustable by a bolt. Case M
Is pivotally supported by a pivot portion 18 so as to be rotatable up and down.
Therefore, by adjusting the mounting position of the traveling drive case 13 and the wheel height frame 17, the height of the traveling mechanism B with respect to the ground can be adjusted, whereby the height of the stalk processing mechanism A with respect to the height of the ridges can be adjusted. Is adjustable.

The engine E and the transmission case M that constitute the traveling mechanism B are integrally fixed, and the traveling frame 19 protrudes forward from the engine E and the transmission case M. A steering handle H projects upward and rearward from the traveling frame 19, and the steering handle H extends to above the engine E.
The steering handle H is provided with a forward / reverse speed change lever 8, a work clutch 81, and the like. A PTO shaft protrudes from the front of the transmission case M, and the PTO shaft
The TO joint shaft 15 is connected. The front end of the PTO joint shaft 15 transmits power to a rotation center gear case K rotatably disposed on the traveling frame 19, and the rotation support point P is provided on the rotation center gear case K. ing.

Next, the stalk processing mechanism A will be described. The stalk processing mechanism A is integrally formed with a scraping device 14, a ridge holding roller mechanism T, a nipping and conveying device F, and the like. It is pivotally supported by a crankshaft 25 in the gear case K, and the axis of the crankshaft 25 is a pivot point P. The support frame 46 of the ridge pressing roller mechanism T is hung on a bracket 49 fixed to the front lower surface of the nipping and conveying device F, and the left and right roller units 2L and 2R of the ridge pressing roller mechanism T are vertically rotatable. The vertical position is adjustable.

A rotating frame 40 is fixed to the shaft case of the crankshaft 25 so as to protrude downward, and a telescopic pipe 41 configured to be expandable and contractable is disposed below the engine E, The tip of the pipe 41 and the lower end of the rotating frame 40 are rotatably connected. The telescopic pipe 41 is
An adjusting lever 4 rotatably attached to the rear end of the pipe 41;
2 is configured to expand and contract by rotating. When the adjusting lever 42 is rotated, the telescopic pipe 41 expands and contracts, and the rotating frame 40 rotates about the pivot point P, and the stem processing mechanism A is vertically rotated integrally with the rotating frame 40. I do. Thereby, the tip position of the stalk processing mechanism A can be adjusted in the vertical direction according to the ridge height. Further, a damper mechanism S composed of a gas spring or the like is interposed between the stalk processing mechanism A and the traveling mechanism B.

[0013] Excavation plate 16, 16 disposed at the tip of the fuselage
The guide wheels GG are supported by a traveling frame 19 that constitutes the traveling mechanism B. The excavation plate 16
Is configured to protrude forward and downward from the front end of the frame 19, and is formed of a plate-shaped member formed in a substantially triangular shape in a side view. The excavating plates 16 are inserted into the soil inside the groove between the ridges at the time of work, and dig the rooted stems into the groove to raise the stalks. It is transported to.

The stems are pulled up by the excavating plates 16, 16 and the stems are scraped by the scraping tines 27, 27 of the scraping devices 14, 14, while being clamped by the sandwiching and conveying belt 24 of the sandwiching and conveying device F, and the upper and lower sides thereof. And the ridge pressing roller mechanism T presses the potatoes in the ridges so as not to float, thereby tearing off the original portion of the potato stalks. The original portion of the potato stalk can be cut by a cutter or the like, but since there is a risk of damaging the potato, the stalk is torn off by the action of pressing with the ridge pressing roller mechanism T and pulling with the nipping transport belt 24. I have.

In the case of excavating with the excavating plates 16 and scraping with the raking devices 14, the stems prosper to the adjacent ridges or the stems of the adjacent ridges are working. There are cases where stems are entangled by invading ridges. If you pull the stem in such a state as it is, you may dig up the potatoes on the next unpressed ridge,
Stem cutting devices C for preventing this are disposed on the left and right of the end of the frame 19. The stalk cutting device C is constituted by reciprocating blades arranged in the vertical direction, and the work clutch lever 81 for switching the driving of the stalk processing mechanism A is turned on.
The drive is started in conjunction with the operation or by providing a stem cutting device clutch mechanism separately. A weeding guide 43 is provided above the stalk cutting device C. The stalks above the ridges are weeded by the weeding guide 43 and guided to the stalk cutting device C, and the stalks are scraped by the scraping devices 14. I am trying to put it. And the stem cutting device C and the cutting device cover 80
It is located behind the weeding guide 43.

Further, on the side of the rotation center gear case K,
A crank portion including a crankcase 23 and the like is provided, and the stem portion drives the stem cutting device C via the crank interlocking link 12 by the crank portion. A drive clutch mechanism of the stem cutting device C is provided in the rotation center gear case K, so that even if the stem processing mechanism A is driven, the stem cutting device C is not driven.

The stems scraped and torn by the scraping devices 14, 14 are conveyed rearward by the nipping and conveying belt 24, and are pulled from the scraping devices 14, 14 by the scraping devices 14.
-It is inherited by the transport tines 26, 26 of the nipping transport mechanism F disposed above and behind the 14. And the transport tine 2
The sheet is further conveyed rearward by the holding conveyance belt 6 and is discharged to the rear of the machine.

As shown in FIG. 2, the holding and conveying device F is configured so that the stem discharging direction can be switched between left and right by rotating the upper part thereof left and right. If the holding and conveying device F is straightened without bending to the left and right, the stem can be dropped to the rear of the ridge for cutting the stem, and if bent to the left and right, the stem is discharged to the groove of the adjacent strip. In addition, the stem can be discharged into the groove of the next two or three adjacent strips. in this way,
In the present embodiment, it is configured to be rotatable in three stages on each side of the left and right, and to be able to adjust the discharge position switching to seven stages by adding the center position. The number of adjustment stages is not limited to the number of stages in the present embodiment, and may be appropriately set to an appropriate number of stages.

Next, FIG. 3 shows a power transmission configuration of the rotation center gear case K. A rack gear 20 is disposed on a drive shaft portion inside the rotation center gear case K, and the rack gear 20 and the PTO joint shaft 1
The pinion gear fixed to the front end of the gear 5 meshes with the pinion gear, and the pinion gear rotates the rack gear 20. The rotation of the rack gear 20 is transmitted to a horizontal crankshaft 25 by bevel gears 22 and 21, and the crankcase 23 drives the crank link 12 by the crankshaft 25.
Is being driven. Then, the rotation of the rack gear 20 causes the transport belt drive shaft 31 to rotate, and the nipping transport belt 2
4 is being driven.

In FIG. 4, an engine E, a transmission case M, a traveling drive case 13 and a PTO joint shaft 1 are shown.
A portion 5 is shown, and a forward / reverse switching arm 5 rotated by operation of a forward / reverse shift lever 8 is provided on a side surface of the transmission case M. The shift lever L shifts to a plurality of speeds. The rotational speed is switched between forward and backward by the forward / backward switching arm 5. A PTO clutch operation wire 71 is provided above the transmission case M.
And the traveling clutch operation wire 47 are linked.

Next, referring to FIGS. 5 and 6, the structure of the portion of the rotation center gear case K will be described. The rotation center gear case K includes a crankshaft case 70 on which the crankshaft 25 is disposed, and drive shafts 24 and 29 of the nipping and conveying belts 24 and 24.
And a belt drive case 72 in which is disposed. The crankshaft case 70 and the belt drive case 72 are integrally formed, and the stem processing mechanism A is provided via a bracket.
It is fixed to. Then, the portions of the bearing metal 73 at both ends of the crankshaft case 70 form the traveling frame 19.
Is pivotally supported by a bearing portion provided at the center. The bearing metals 73 constitute a bearing portion for pivotally supporting the stalk processing mechanism A. The center of the crankshaft 25 is a pivot point P at the center of rotation of the stalk processing mechanism A.

The tip of a PTO joint shaft 15 projecting from the transmission case M is connected to the pinion gear 7 inside the belt drive case 72, and the transmission case M
The rotation connected and disconnected by the PTO clutch operation wire 71 is input to the pinion gear 7. The pinion gear 7 and the rack gear 20 mesh with each other, and the rotation is converted into a vertical rotation of a drive shaft 31 that drives the nipping and conveying belt 24.

The drive shaft 31 is used to drive the left belt of the nipping and conveying belt 24. The drive shaft 29 for driving the right belt is fixed to the drive shaft 31 in the rotation center gear case K. The sprocket 36 of the bevel gear shaft 35 is driven from the provided sprocket 33 via a chain, and the power is transmitted by the gear 34 on the bevel gear shaft 35 meshing with the gear 37 of the drive shaft 29. Thus, the drive shaft 24 and the drive shaft 29 rotate in the reverse direction.

The bevel gear shaft 35 inside the belt drive case 72 fits inside the crankshaft case 70, and the bevel gear 22 is fixed to a portion of the bevel gear shaft 35 protruding into the crankshaft case 70. The bevel gear 22 is a bevel gear 2 of the left and right clutch shafts 65.
It is in mesh with 1.21. The clutch operation sliding shafts 66 are slidably fitted into the clutch shafts 65. The clutch operation sliding shafts 66 are connected to clutch operation levers 39, 39 and clutch sliding shifters 67
By sliding left and right by 67, the cam portions at the tips of the clutch operation sliding shafts 66 push the clutch cam balls 64 and 64, and the clutch operation sliding shaft 6
The rotation transmission between the crankshafts 6 and 66 and the crankshafts 25 is connected and disconnected.

The outer receiving portions of the stem cutting clutch wires 38 for operating the clutch operating levers 39 are disposed below the crankshaft case 70. Further, a crank arm 6 for driving the stem cutting device C is fixed to both left and right end portions of the crank shaft 25, and the crank arm 6 converts the rotation of the crank shaft 25 into forward and backward motion,
The forward and backward reciprocating motion is transmitted to the stem cutting device C via the crank interlocking link 12. As described above, the stem cutting device clutch mechanisms for connecting and disconnecting the driving force of the stem cutting device C are provided for the left and right stem cutting devices C, respectively.
Can be driven independently or both simultaneously.

Next, the stem cutting device C and the weeding guide 43
This will be described with reference to FIGS. The cutting device C includes a reciprocating blade 86 and a fixed blade 87, and the like.
A connecting tool 89 is fixed to the reciprocating blade 86. A distal end 12a of the crank link 12 is connected to a distal end of a rotary arm 94 that is rotatable about a rotation center 88a.
A drive arm 88 that rotates integrally with the drive arm 4 is attached. A pin 88b protrudes from the tip of the drive arm 88, and the pin 88b is slidably fitted in a long hole 89a formed in the connecting tool 89.

When the crank interlocking link 12 is driven back and forth by the crankcase 23, the rotating arm 9 is rotated.
4 rotates about the rotation center 88a, and the drive arm 88 integrally rotates vertically. Drive arm 88
The reciprocating blade 86 reciprocates up and down due to the up and down rotation of. A reciprocating blade 8 that performs this vertical reciprocating motion
By 6 and the fixed blade 87, the stem on the ridge is cut.

The reciprocating blade 86 and the fixed blade 87 are covered by a cutting device cover 80, and a digging plate 16 projecting forward is supported by a support frame 90 at the lower end of the stem cutting device C. I have. The cutting device cover 80
As shown in FIG. 8, it is supported by opening and closing parallel links 82 and 83 so as to be able to rotate back and forth. Opening and closing parallel link 82.8
Reference numeral 3 denotes rotating portions 82b and 83b rotatably connected to the cutting device cover 80 around the rotation centers 82a and 83a.
Are rotatable. A spring 85 is connected to the lever 82c of the opening / closing parallel link 82, and the opening / closing parallel link 82 is urged in a direction in which the cutting device cover 80 opens rearward.
The cover opening / closing wire 84 is connected, and the cover opening / closing wire 84 is configured to be pushed and pulled in conjunction with the connection / disconnection of the above-described stem cutting device clutch mechanism.

When the clutch mechanism of the stem cutting device clutch is turned off, the cover opening / closing wire 84 is pulled,
When the cutting device cover 80 is pushed forward against the urging force of the spring 85 to close the cutting device cover 80 and conversely turn the stem cutting device clutch mechanism on, the urging force of the spring 85 causes the cutting device cover to close. The cover 80 is configured to be pulled rearward to open the cutting device cover 80. Thus, when the stem cutting device clutch mechanism is clutch-on, the cutting device cover 80 is opened in conjunction with the driving of the stem cutting device C. When the stem cutting device clutch mechanism is clutch-off, the stem cutting device C is turned off. The cutting device cover 80 is configured to close in conjunction with the stop of the driving of the cutting device C.

At the upper end of the stalk cutting device C, a guide support plate 91 is fixed to the upper end of the support frame 90, and a bolt 92 is screwed onto the support plate 91. The weeding guide 43 is attached to the guide support plate 91 by the guide base 43 a being rotatably fitted to the bolt 92. A spring 93 is fitted on the bolt 92 to bias the guide base 43a of the weeding guide 43 toward the guide support plate 91.
1 has a pin 91a protruding therefrom so that the pin 91a can be fitted into one of the fixing holes 43c and 43d formed in the guide base 43a. When the fixing hole 43c is fitted to the pin 91a, the weeding guide 43 projects forward, and when the fixing hole 43d is fitted to the pin 91a,
The weeding guide 43 falls backward. When the weeding guide 43 projects forward, the weeding guide 43 is located above and in front of the stem cutting device C.

Since the guide base 43a of the weeding guide 43 is urged toward the guide support plate 91 by the spring 93, the pin 91a is stably fitted in the fixing hole 43c or the fixing hole 43d. Fixed. For example, the fixing hole to be fitted into the pin 91a is
When switching from c to the other fixing hole 43d, the guide base 43a is pushed up to the side opposite to the guide support plate 91 against the urging force of the spring 93, and the fixing hole 43c is withdrawn from the pin 91a. By rotating the guide 43, the pin 91
When the position of a and the other fixing hole 43d are matched, the fixing hole 43d is fitted to the pin 91a by the urging force of the spring 93, and can be switched.

As described above, since the weeding guide 43 is configured so as to be able to be rotated back and forth, when performing work,
When the fixing hole 43c is fitted to the pin 91a and the weeding guide 43 is projected forward to sown, the stalk above the stalk cutting device C is guided to the stalk cutting device C. When no work is performed,
The weeding guide 43 can be housed by fitting the fixing hole 43d to the pin 91a and tilting the weeding guide 43 backward.

[0033]

As described above, the present invention has the following advantages. That is, as described in claim 1, a stem cutting device for cutting stems on the ridge and a cutting device cover are provided behind the weeding guide provided at the front end of the machine body. As a result, the stem can be cut by the stem cutting device after leading the upper stem, and the cutting efficiency of the stem by the stem cutting device can be improved.
As a result, it was possible to reliably prevent the potatoes in the next row from being dug up. In addition, the stem cutting device can be covered with the cutting device cover except during operation, and safety can be enhanced.

Further, weeding guides are provided on the left and right sides of the front end of the machine, and a stem cutting device for cutting stems on the ridges respectively behind the left and right weeding guides, and a cutting device cover for opening and closing the stem cutting device. Since, for example, when starting work from the center ridge of the field, the left and right stalk cutting devices can be driven to cut the stalks in the left and right grooves of the ridge. Can work from. Then, in this case, the stems could be reliably weeded by the weeding guide and then cut by the stem cutting device, and the cutting efficiency of the stems by the stem cutting device could be improved. As a result, it was possible to reliably prevent the potatoes on the ridges on both sides from being dug up.

Further, a stem cutting device for cutting stems on the ridge and a cutting device cover are disposed on the left and right sides of the front end of the fuselage, so that the left and right stem cutting devices and the cutting device cover can be driven independently. Therefore, for example, in the case of performing stalk processing in a reciprocating operation, it is possible to stop the drive of the stalk cutting device on the side where the stalk has already been cut, of the left and right grooves of the ridge to be operated, and Work could be started from either the left or right, reducing the power required by the engine and reducing fuel consumption. Further, in this case, the cutting device cover of the stem cutting device on the side where the driving is stopped closes in conjunction with the stop of the driving and covers and protects the cutting blade, thereby improving safety.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a traveling stem processing machine provided with a weeding guide of the present invention.

FIG. 2 is an overall plan view of the same.

FIG. 3 is a cross-sectional view showing a pivot point for pivotally supporting a stem processing mechanism.

FIG. 4 is a side view of a transmission case arranged on a side of the engine.

FIG. 5 is a rear cross-sectional view of the rotation center gear case.

FIG. 6 is a sectional view showing a crank mechanism for driving the stem cutting device.

FIG. 7 is a side view showing a stem cutting device and a weeding guide.

FIG. 8 is a plan view of the same.

[Explanation of symbols]

 Reference Signs List A stem processing mechanism B traveling mechanism C stem cutting device E engine F clamping and conveying device H handle K rotation center gear case M transmission case T ridge pressing roller mechanism 12 crank interlocking link 23 crankcase 80 cutting device cover 86 reciprocating blade (cutting) Blade) 87 Fixed blade (Cutting blade)

Claims (3)

[Claims] 1. A traveling stalk processor for pulling out and discharging stalks while traveling, comprising a weeding guide at a front end of the machine body, and a stalk cutting device for cutting a ridge on a ridge behind the weeding guide. A stem cutting device for a traveling stem processing machine, comprising a cutting device cover and a cutting device cover. 2. A traveling stalk processor for pulling out and discharging stalks while traveling, wherein stalks are provided on left and right sides of a front end of the machine body, and stalks for cutting ridges on ridges respectively behind the left and right weeding guides. A stem cutting device for a traveling stem processing machine, comprising a cutting device and a cutting device cover that covers the stem cutting device so as to be openable and closable. 3. A traveling stalk processor for pulling out and discharging stalks while traveling, a stalk cutting device for cutting stalks on a ridge, and a cutting device cover for opening and closing the stalk cutting device on the left and right sides of the front end of the machine. Wherein the left and right stem cutting devices and the cutting device cover are independently opened, and the cutting device cover is opened to drive the stem cutting device. apparatus.