JP2007068418A - Collapsible working implement for soil disintegration - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a collapsible working implement for soil disintegration eliminating such trouble that, conventionally, a folding-up driving unit is exposed out of such a working implement, therefore, the folding-up driving unit can be broken on its collision with any outside interference object, tends to be covered with muddy water during a puddling operation, and tends to become in failed states. <P>SOLUTION: The collapsible working implement for soil disintegration with side working elements 2L and 2R joined collapsibly via a folding-up driving mechanism 4 onto the top of a central working element 1 is provided. In this working implement, each of the central working element 1 and the side working elements 2L and 2R is equipped with turning frames 50 and 51 mutually turnable round a folding-up turning shaft 30, and part or the whole of at least the folding-up driving unit 40 of the folding-up driving mechanism 4 are equipped in the turning frames 50 and 51. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is a crushed working machine, has a central working body in the center and side working bodies that are left and right extensions, and the working width is increased by folding the left and right side working bodies to the central working body side. The present invention relates to a folding ground crusher capable of adjusting and traveling while folding both side working bodies when moving.

  Various types of folding crushing machines have been known that have a structure in which a center part and left and right extension parts are folded and the left and right extension parts are folded toward the center part side. Japanese Patent Laid-Open No. 10-295113 (Prior Art 1) discloses a “locking method for a folding farm work machine”. In the prior art 1, “the middle part of the agricultural machine in the length direction is mounted on the rear part of the tractor via a three-point link hitch mechanism so as to be movable up and down, and power is transmitted from the tractor to the central part of the agricultural machine. Agricultural work in which the work machine part extending from the center part to the left and right sides of the part can be folded to the center part side, and locked by a locking device when the work machine part is expanded to the working state. In the machine, the farm work machine is divided into a central part and left and right work machine parts, and the left and right end parts of the center part and the inner end parts of the left and right work machine parts can be rotated approximately 180 ° by respective rotation fulcrums. The guide plate having guide grooves is fixed to the left and right work machine parts, and the other end of the rotary arm provided with a guide pin fitted into the guide groove at one end is pivoted to the center part side. And connecting the piston tip of the hydraulic cylinder with the base end supported on the center part side to the middle part of the rotary arm, the left and right work machine parts can be folded and deployed by the expansion and contraction operation of the hydraulic cylinder, There is a description of "a method for locking a folding agricultural machine" in which the locking device is operated by an expansion / contraction operation of the hydraulic cylinder.

  Japanese Patent Laid-Open No. 2001-352807 (Prior Art 2) relates to a “folding farm work machine”, and “the folding farm work machine 1 is provided so as to be foldable at a work machine body 2 and both ends of the work machine body 2. The extended grounding rotary bodies 4 and 4, a ground breaking rotary 3, and an extended ground breaking rotary 5. The extended ground breaking rotary 5 is rotated by the rotation of the ground breaking rotary 3. The state in which the ground breaking rotary 3 and both extended ground breaking rotary 5 are ground. There is a disclosure of a device that can be switched between a state of crushing with the crushing rotary 3 and one of the extended crushing rotarys 5 and a state of crushing with only the crushing rotary 3.

Regarding the “work machine folding means 53” of the prior art 2, paragraphs 0037 to 0041 of Patent Document 2 have the following description. “The work machine folding means 53 includes a link mechanism 54 that supports the extension work machine body 4 so that it can be folded at both ends of the work machine body 2, and the extension work machine body 4 is connected to the work machine via the link mechanism 54. A cylinder device 55 that is folded on the main body 2 and moved to both ends of the earth breaking rotary 3 of the work machine main body 2 and rotated to an extended working width of the earth breaking rotary 3 by the extended earth breaking rotary 5. The link mechanism 54 includes a pair of main body side fixed links 56 fixed to both ends of the main frame 6, and the pair of main body side fixed links 56 facing the pair of main body side fixed links 56. A pair of extension-side fixed links 57 fixed to the end portions, a distal end portion of the pair of body-side fixed links 56, and a distal end portion of the pair of extension-side fixed links 57 are rotatably connected. The linking pin 58 and the base end are pivotally supported by a support shaft 59, one tip is connected to the pair of main body side fixed links 56, and the other tip is connected to the pair of extension side fixed links 57. Each of the pair of movable links 61 is rotatably supported by a support shaft 60. The pair of main body side fixed links 56 and the pair of extension side fixed links 57 are substantially the same shape. The tip portions are formed in a substantially triangular shape, projecting toward opposite ends of the work machine body 2 and the extension work machine body 4, and rotated by the connecting pin 58 in a state where they are overlapped with each other. Of the pair of movable links 61, one movable link 61 pivotally supported by the pair of main body side fixed links 56 is formed in a substantially square shape, and the pair of extension side fixed The other movable lever pivotally supported by the link 57 The cylinder device 55 includes a cylinder main body 62 and a cylinder rod 63 provided in the cylinder main body 62 so as to be movable forward and backward. An end portion is pivotally supported on the main frame 6 by a support shaft 64, and a distal end portion of the cylinder rod 63 is pivoted on a base end portion of the pair of movable links 61 by a support shaft 59. The cylinder device 55 is formed by a hydraulic cylinder device (see paragraphs 0037 to 0041 of Patent Document 2).
Japanese Patent Laid-Open No. 10-295113 JP 2001-352807 A

  Since the hydraulic cylinder which is a folding drive device in the folding method of the folding farm machine of the prior art 1 and the cylinder device (hydraulic cylinder) 55 of the folding means 53 of the folding farm machine of the conventional technique 2 are exposed to the outside of the working machine. There is a high possibility that a cylinder device such as a hydraulic cylinder, which is a folding drive device, is damaged by colliding with an external interference object or is easily damaged by muddy water during a scraping operation.

  Further, the cylinder of the folding drive device of the folding farm work machine according to the prior art 1 and the prior art 2 is such that the side working device is expanded by extending the cylinder rod, and the side working device is shortened by shortening the cylinder rod. Although it is configured to be in a folded state, in this case, the position of the cylinder of the folding drive device is above the folding rotation shaft, and it is necessary to protrude above the central work body. Since it becomes large and easily interferes with an external interference, there is a problem that there is a risk of damage.

In order to solve the above-mentioned problem, a crushed soil work comprising three parts, a central work body and left and right side work bodies, in which the side work body is folded upward from both ends of the central work body and is foldably connected by a drive mechanism. In the machine
Each of the central working body and the side working body is provided with a pivoting frame that can pivot with respect to the folding pivoting axis,
A folding crusher working machine is proposed in which at least all or a part of the folding driving device of the folding driving mechanism is provided in a rotating frame.

Further, in the folding ground working machine composed of three parts of the central working body and the left and right side working bodies, the side working body is connected so as to be foldable upward by folding drive mechanism from both ends of the central working body,
Each of the central working body and the side working body is provided with a pivoting frame that can pivot with respect to the folding pivoting axis,
All or a part of the folding drive device of the folding drive mechanism is provided in the rotating frame, and
The central working body has a central ground breaking rotary, a rotary upper surface cover that covers the upper surface of the rotary, and a central ground leveling board, and each of the left and right side side working bodies has a side ground breaking rotary and a side leveling ground board. And
The folding drive device of the folding drive mechanism is characterized in that the folding drive device of the folding drive mechanism is positioned between the rotary for crushing rotary and the folding rotary shaft.

  Furthermore, the folding ground crusher of the 0007 column or 0008 column which provided the inspection protection cover which can be attached or detached to a rotation frame is proposed.

  According to the present invention, at least all or a part of the folding drive device among the constituent members of the folding drive mechanism that folds the left and right side working bodies into the central working body is provided in the rotating frame and interferes from the outside. Because it is configured so that it will not be carried out, it will no longer collide with external objects during work and will not be covered with muddy water during scraping work.

  Further, since the folding drive device of the folding drive mechanism is positioned between the crushed rotary and the folding rotation shaft, the folding drive mechanism does not protrude outwardly (upward) from the work body compared to the conventional work. The entire machine is compact and easy to handle.

  Moreover, in the invention which concerns on Claim 3, since it was set as the structure which provided the inspection protection cover which can be attached or detached to the rotation frame, the covering degree of the folding drive device provided in the rotation frame improves, and more from the outside. The collision with the interference can be prevented, and the inspection protective cover can be attached and detached, so that the work can be easily performed when performing maintenance and inspection of the folding drive device.

  An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a side view of a state in which a side working body of a folding ground breaking machine according to an embodiment of the present invention is expanded to a working state, and FIG. FIG. 3 is a rear view of a state in which the side work body of the folding ground breaker is folded, FIG. 4 is a drive transmission diagram of the folding ground breaker, and FIG. 5 is a side view of the folding ground breaker. Side explanatory drawing which shows the state which folded the working body, FIG. 6 thru | or FIG. 9 is an A arrow view in FIG. 1 of a folding ground crusher similarly, and is operation | movement explanatory drawing which changes a right side part working body from a deployment state. FIG. 10 to FIG. 13 correspond to FIG. 6 to FIG. 9 and are enlarged views of the main part of the folding drive mechanism. FIG. 14 is an explanatory diagram of driving, and FIG. It is a cross-sectional view taken along line BB.

  The folding ground crusher according to the embodiment of the present invention includes three parts: a central work body 1 and left and right side work bodies 2L and 2R that extend the work width to the left and right of the central work body 1. The central work body 1 and the left and right side work bodies 2L and 2R connect the side work bodies 2L and 2R to the upper side of the central work body 1 so as to be foldable left and right. 3 is a folding part of the central working body 1 and the left and right side working bodies 2L, 2R.

  The central working body 1 has a central earth crushing rotary 10 and a pipe-shaped center frame 11 provided in the left-right direction. The center frame 11 is provided with an input case 12 at the center, an input shaft 12a projects forward from the input case 12, and a lower pin 19b provided on both sides of the top mast 19a and the input case 12 is a tractor three-point link mechanism (see FIG. (Not shown), and a universal joint is connected to the input shaft 12a so as to transmit drive from the tractor PTO shaft. The input shaft 12a is connected to an output shaft 11a provided in the center frame 11 via a bevel gear 12b so as to be capable of transmission.

  A transmission chain case 13 is provided on one side of the center frame 11, and the rotation transmission is transmitted from the output shaft 11 a to the central rotation shaft 10 a of the central earthing rotary 10 through a sprocket 13 a and a roller chain 13 b provided in the transmission chain case 13. Connect as possible. 10b is the ground claw provided in large numbers over the circumference direction in the center rotating shaft 10a.

  As shown in FIG. 5, the central rotary shaft 10a is provided with central clutch claws 14 at both left and right ends, and side clutches at the ends of the side rotary shafts 20a and 20a of the left and right side work bodies 2L and 2R. It is the structure which can be rotationally transmitted by connecting with the nail | claw 20b.

  The central ground rotary 10 is provided with a central rotary upper surface cover 15 on the upper surface. The central rotary top cover 15 is provided with a central first leveling plate 16 at the rear end thereof so as to be vertically rotatable via a first leveling plate rotation shaft 16a. The central first leveling plate 16 is provided with a central second leveling plate 17 on the rear end side (or lower end side) so as to be vertically rotatable via a second leveling plate rotating shaft 17a. Reference numeral 160 denotes a first rake, and 161 denotes a second rake, both of which are provided on the central first leveling plate 16.

  The central second leveling plate 17 is connected to the leveling plate operating rod 18a, the leveling plate operating arm 18b, and the operating lever 18c, which are leveling plate operating means 18, on the upper surface thereof, and the operating lever 18c connected to the operating rod 18a. Thus, the central first leveling plate 16 and the central second leveling plate 17 are rotated and fixed.

  A mounting frame 19 is connected to the tractor by a top mast 19a and a lower pin 19b.

  The left and right side working bodies 2L, 2R are provided with a side crush rotary 20 having a side rotary shaft 20a provided in the left-right direction, and a side rotary top cover 21 on the upper surface thereof. The side rotary upper surface cover 21 is provided with a side first ground leveling plate 22 at the rear end thereof so as to be vertically rotatable via a first leveling plate rotating shaft 22a. The side first leveling plate 22 is provided with a side second leveling plate 23 on the rear end side (or the lower end side) so as to be vertically rotatable. A first rake 220 and a second rake 221 are provided on the side first leveling plate 22.

  The folding unit 3 is provided in the folding portion of the central working body 1 and the side working bodies 2L and 2R, and the side working body provided in the side working bodies 2L and 2R by the folding drive mechanism 4. The side work bodies 2L and 2R are connected to the central work body around a folding rotation shaft 30 that rotatably connects the rotation frame 50 and the central work body rotation frame 51 provided in the central work body 1. Fold it 180 degrees onto the top of 1.

  The folding drive mechanism 4 is provided from the central rotary top cover 15 of the central work body 1 to the outer surface of the side rotary top cover 21 of the left and right side work bodies 2L and 2R. The folding drive mechanism 4 includes a folding drive device 40, a link arm 41, a release pin 42, a fixed release link 43, a fixed release lot 44, a fixed release hook 45, a slide rail 46, a folding rail. It has a tatami rotation shaft 30, a side work body rotation frame 50, and a central work body rotation frame 51. In this embodiment, the folding drive device 40 is the electric cylinder 40, but it may be a hydraulic cylinder or an air cylinder.

  The electric cylinder 40 includes a cylinder rod 40a and a cylinder body 40b. The cylinder rod 40a has a rod tip 40c at the tip, a roller shaft 40d at the rod tip 40c, and rollers 40e on both sides of the roller shaft 40d. The roller 40e is movably engaged with the slide rail 46 as shown in FIG. The cylinder main body 40b is fixed to the central rotary upper surface cover 15 in the width direction of the central work body 1, and is provided so that the cylinder rod 40a can extend and contract in the side work body direction.

  The cylinder rod 40b is rotatably connected to the center side end 41a of the link arm 41 by a rod tip 40c provided at the tip. The link arm 41 is a plate-like body having a circular arc shape as a whole, and is provided with an oblong slot 41b that is long in the direction in which the cylinder rod slides in the vicinity of the end on the opposite side from the central end 41a. The long hole 41 b is engaged with a rotation pin 500 protruding from the surface of the side work body rotation frame 50.

  The link arm 41 is in contact with one end of the release pin 42 at the end where the long hole 41b is provided. The release pin 42 is provided so as to be rotatable about a pin rotation shaft 42a. The pin rotation shaft 42 a is fixedly connected to the fixing release link 43, and the fixing release link 43 is connected to the fixing release hook 45 through the fixing release lot 44.

  The unlocking hook 45 is rotatable about a hook rotation shaft 45a, and is connected to the end of the fixing release lot 44 by a connecting end 45c. The unlocking hook 45 has a hook 45b formed of a recess on the opposite side of the connecting end 45c across the hook rotation shaft 45a, and the hook 45b is fixed to the side work bodies 2L and 2R. The hook pin 45d is engaged and disengaged. The unlocking hook 45 is always urged and rotated in the direction of the hook pin 45d by a torsion spring provided on the hook rotating shaft 45a (the arrow direction in FIG. 10).

  The slide rail 46 is provided in the direction in which the cylinder rod 40a expands and contracts, and is fitted with a roller 40e provided at the tip of the cylinder rod 40a on the inner surface as shown in FIG. 14, and the cylinder rod 40a and the link arm 41 are fitted. The direction of movement. Reference numeral 30 denotes a folding rotation shaft, which is the rotation center of the side work body rotation frame 50 and connects the side work body rotation frame 50 and the central work body rotation frame 51.

  In the folding drive mechanism 4, at least all or a part of the electric cylinder 40 which is the folding drive device 40 is provided in the side work body rotation frame 50 and / or the central work body rotation frame 51. In this embodiment, the side work body rotation frame 50 is formed of two parallel plate-like bodies facing each other, and the central work body rotation frame 51 is formed of a square tube body having a U-shaped cross section with an open bottom surface. .

  In this embodiment, the inspection protection cover 6 is detachably attached to the center side of the central work body rotation frame 51 with a bolt or the like, and the electric cylinder 40 is entirely formed by the central work body rotation frame 51 and the inspection protection cover 6. However, the fixing release link 43, the fixing release lot 44, and the fixing release hook 45 of the folding drive mechanism 4 are disposed outside the side work body rotation frame 50 and the central work body rotation frame 51. Is provided.

  Further, as another embodiment, at least all or a part of the electric cylinder 40 of the folding drive mechanism 4 may be provided in the side work body rotation frame 50. Furthermore, it is good also as a structure which can attach or detach the inspection protection cover 6 also to the side part working body rotation frame 50 side.

  Next, the operation of the folding drive mechanism of the folding ground working machine of the present invention will be described with reference to FIGS. 6 to 9 and FIGS. 10 to 13 showing the operation of folding the right side working body 2R from the unfolded state. 6 and 10 show the side working body 2R in the unfolded state. In the unfolded state, the electric cylinder 40, which is the folding drive device 40, has the cylinder rod 40a contracted, and the hook 45b is engaged with the hook pin 45d by the urging force of the torsion spring. Yes. Since the hook pin 45d is provided fixed to the side work bodies 2L and 2R, the side work body 2R is fixed in the unfolded state and cannot be moved in the folding direction when the hook pin 45d and the hook 45b are engaged. .

  6 and 10, the rotation pin 500 engaged with the long hole 41b of the link arm 41 is located farthest from the cylinder main body 40b on the opposite side of the cylinder main body 40b in the long hole 41b. Is located.

  7 and 11 show a state in which the cylinder rod 40a of the electric cylinder 40, which is the folding drive device 40, is slightly extended from FIGS. 6 and 10 in the direction of the arrow. At this time, the cylinder rod 40a moves the link arm 41 connected to the rod tip 40c while moving in the slide rail 46 by the roller 40e. Therefore, while the ellipse idle portion of the long hole 41b of the link arm 41 is moved, the action of pressing the rotating pin 500 is not performed. At the same time, however, the link arm 41 presses the release pin 42 at the end by this movement, and rotates the release pin 42 about the pin rotation shaft 42a in the direction of the arrow in FIG. The release pin 42 moves the fixation release lot 44 in the direction of the arrow in FIG. 11 via the fixation release link 43 which is fixed when it is rotated. The unlocking lot 44 moves the connecting end 45c of the unlocking hook 45 and rotates the fixing releasing hook 45 about the hook rotating shaft 45a against the biasing force of the torsion spring. By the rotation of the fixing release hook 45, the hook 45b releases the engagement with the hook pin 45d. When the engagement between the hook pin 45d and the hook 45b is released, the side work body 2R becomes foldable with respect to the central work body 1 around the folding rotation shaft 30 of the folding part 3.

  Next, FIGS. 8 and 12 show a state in which the cylinder rod 40a of the electric cylinder 40 which is the folding drive device 40 is further extended. 7 and 11, the hook pin 45d and the hook 45b are disengaged, and the cylinder pin 40a is extended thereafter to push the rotating pin 500 with which the long hole 41b of the link arm 41 is engaged. When the rotation pin 500 is pushed, the side work body rotation frame 50 is rotated upward with the folding rotation shaft 30 as the rotation center. The side work body rotation frame 50 is fixed to the side work body 2R, and is pivotably connected to the central work body rotation frame 51, so that the side work body 2R is rotated upward. Let

  9 and 13 show a state in which the cylinder rod 40a of the electric cylinder 40 that is the folding drive device 40 is further extended to fold the side work body 2R to the upper part of the central work body 1 by 180 degrees.

  Conversely, when the side working bodies 2L, 2R are expanded from the state folded on the upper side of the central working body 1, the cylinder rod 40a of the electric cylinder 40 which is the folding drive device 40 is shortened. Do. The operation of the folding mechanism 4 and the movement of the side work bodies 2L, 2R are the reverse of the movement from the unfolded state to the folded state, and are sequentially changed from FIGS. 9 and 13 to FIGS. The hook 45b is engaged with the hook pin 45d by the biasing force of the torsion spring, and the side work bodies 2L and 2R are fixed in the deployed state.

  The present invention has a foldable side work body that is an extension work body, and can be used as a ground breaking work machine such as a ground scraping device or a ground breaking rotary device having a leveling plate capable of performing ground scraping work and earthing work in a field. High nature.

The side view of the state which expand | deployed the side part working body of the folding crushing work machine which is embodiment of this invention to the working state Similarly, a rear view of the side work body expanded to the working state The back view of the state where the side work body is also folded Similarly, the drive transmission diagram of the folding crusher Side explanatory drawing which shows the state which folded the side part work body similarly FIG. 1 is a view of the same folding crushed working machine as viewed from the direction of arrow A in FIG. FIG. 1 is a view of the same folding crushed working machine as viewed from the direction of arrow A in FIG. FIG. 1 is a view of the same folding crushed working machine as viewed from the direction of arrow A in FIG. FIG. 1 is a view of the same folding crushed working machine as viewed from the direction of arrow A in FIG. Drive explanatory drawing of the folding drive mechanism which expanded the principal part of FIG. Similarly, the driving explanatory view of the folding drive mechanism in which the main part of FIG. Drive explanatory drawing of the folding drive mechanism in which the main part of FIG. Similarly, the drive explanatory drawing of the folding drive mechanism which expanded the principal part of FIG. 9 and was notched partially. BB line sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Central work body 10 Central crushed rotary 10a Central rotating shaft 10b Crushing claw 11 Center frame 11 Output shaft 12 Input case 12a Input shaft 12b Bevel gear 13 Transmission chain case 13a Sprocket 13b Rotor chain 14 Central side clutch claw 15 Central rotary upper surface cover 16 Center First leveling plate 16a First leveling plate rotation axis
160 First Rake
161 Second rake 17 Central second leveling plate 17a Second leveling plate rotation shaft 18 Leveling plate operating means 18a Leveling plate operating rod 18b Leveling plate operating arm 18c Operating lever 19 Mounting frame 19a Top mast 19b Lower pin 2L, 2R Left and right sides Part work body 20 Side ground rotary 20a, 20a Side rotation shaft 20b Side clutch claw 21 Side rotary top cover 22 Side first ground leveling plate
220 First Rake
221 2nd rake 22a Side 1st leveling board rotation axis 23 Side 2nd leveling board 23a Side 2nd leveling board rotation axis 3 Folding part 30 Folding rotation axis 4 Folding drive mechanism 40 Folding drive ( Electric cylinder)
40a Cylinder rod
40b Cylinder body
40c Rod tip
40d roller shaft
40e roller 41 link arm
41a Center side edge
41b Long hole 42 Release pin
42a Pin rotation shaft 43 Unlocking link 44 Unlocking lot 45 Unlocking hook
45a Hook rotation axis
45b hook
45c Connection end
45d hook pin 46 slide rail 5 frame 50 side work body rotation frame
500 Rotating pin 51 Central work body rotating frame 6 Inspection protection cover

Claims (3)

In the folding ground crusher which consists of three parts, a central working body and left and right side working bodies, and the side working body is foldably connected by a folding drive mechanism upward from both ends of the central working body,
Each of the central working body and the side working body is provided with a pivoting frame that can pivot with respect to the folding pivoting axis,
A folding crusher working machine characterized in that at least all or a part of the folding driving device of the folding driving mechanism is provided in a rotating frame. In the folding ground crusher which consists of three parts, a central working body and left and right side working bodies, and the side working body is foldably connected by a folding drive mechanism upward from both ends of the central working body,
Each of the central working body and the side working body is provided with a pivoting frame that can pivot with respect to the folding pivoting axis,
All or a part of the folding drive device of the folding drive mechanism is provided in the rotating frame, and
The central working body has a central ground breaking rotary, a rotary upper surface cover that covers the upper surface of the rotary, and a central ground leveling board, and each of the left and right side side working bodies has a side ground breaking rotary and a side leveling ground board. And
A foldable crusher working machine characterized in that the foldable drive device of the foldable drive mechanism is located between the crushed rotary and the fold rotation shaft. The folding ground crusher according to claim 1 or 2, wherein a detachable inspection protective cover is provided on the rotating frame.

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