JP2004321155A - Furrow-forming machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a furrow-forming machine, simplifying a constitution for horizontally rotating a working body for furrow forming, decreasing the amount of projection in rear direction in transfer/traveling for making the better front and rear balance of the tractor and enabling the arrangements of an advance working position for performing the furrow-forming work in advance traveling of the tractor and retreat working position for performing the furrow-forming work in retreat traveling. <P>SOLUTION: This furrow-forming machine equipped with a mounting frame for mounting with the tractor and the horizontal rotating mechanism arranged at the rear direction of the tractor and enabling the arrangements of the working body for furrow forming at the advance working position for performing the furrow-forming work based on the advance-traveling of the tractor, at the retreat working position for performing the furrow-forming work based on the retreat-traveling of the tractor and a transfer/traveling position on non-working time at the mounting frame is provided by installing a displacing means for displacing the center of gravity of the working body for furrow forming arranged in the rear direction to a tractor side by jointly moving with the rotational movement to simplify the constitution of the rotating part and make the better balance of mounting of the tractor. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in a tractor mounting balance of a ridge forming machine having a horizontal rotation mechanism that does not generate a ridge unformed portion.
[0002]
[Prior art]
As a conventional technique, a tractor-side frame connected to a tractor, and one end side is rotatably connected to the tractor-side frame, and a first rotator is adjustable about a vertical rotation center axis of the one end side. A second connecting arm that is rotatably connected at one end to the other end of the first connecting arm, and that is rotatable about a vertical rotation center axis of the one end; Body, a working side frame connected to the other end of the second arm body, and a rotation adjustment attached to the working side frame, the rotation of the first connecting arm body about the rotation center axis. And, by the rotation adjustment of the second connecting arm body about the rotation center axis, the forward working posture in which the tractor can perform earthwork based on the forward traveling and the earthwork based on the tractor retreat traveling can be performed. Recession Are known agricultural machine is characterized in that a soil working means which is set to work position. (Patent Document 1)
[0003]
[Patent Document 1]
JP-A-2002-17110
[Problems to be solved by the invention]
According to the above-mentioned prior art, in order to arrange the ridge forming work body, which is the earth work means, at desired work positions of the forward work position and the reverse work position, first, a connection portion between the tractor-side frame and the first arm body is provided. A predetermined amount of rotation is performed about the second rotation center axis, and then a predetermined amount of rotation is performed about the second rotation center axis, which is a connecting portion between the first arm body and the second arm body. Therefore, there is a problem that two rotation operations are required until the ridge forming work body is arranged at a desired work position, which is troublesome and the work cannot be performed smoothly.
[0005]
In addition, when the first arm body is rotated to the non-working position where the ridge forming work body is arranged rearward, the amount of protrusion in the rear of the tractor is large, and the tractor front-rear balance when traveling between fields is deteriorated, which is dangerous. .
[0006]
Therefore, the present invention simplifies the configuration for horizontally rotating the ridge forming work body, reduces the amount of rearward projection during traveling, improves the balance between the tractors, and performs the ridge forming work by tractor forward running. It is an object of the present invention to provide a ridge forming machine that can be arranged at a forward working position and a reverse working position where a ridge forming operation is performed in reverse running.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a mounting frame to be mounted on a tractor, a forward working position at which a ridge forming work is performed on the mounting frame based on the tractor forward running, and a ridge based on the tractor reverse running. In a ridge forming machine equipped with a reversing work position for forming work and a horizontal rotating mechanism that is arranged behind a tractor and can be arranged in a traveling position when not working, the center of gravity of the ridge forming work body arranged behind The provision of the displacing means for displacing the position toward the tractor in conjunction with the pivoting operation simplifies the configuration of the pivoting portion and improves the tractor mounting balance.
[0008]
A mounting mast and an input shaft are provided in front of the mounting frame, and a base portion of a support frame having a ridge forming work body provided on an outer side is rotatably supported on a vertical axis at a rear portion of the mounting frame, and is horizontally rotated. The ridge forming work body is configured to be slidable with respect to the support frame, and a guide groove is opened in the mounting frame, and a guide member engaging with the guide groove is provided on the ridge forming work body. The ridge formation work body is displaced to move the position of the center of gravity of the ridge formation work body along the guide groove in conjunction with the rotation of the frame. Even if the work body is disposed behind the tractor, the amount of rearward protrusion can be reduced, and the tractor longitudinal balance is improved.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of the ridge forming machine embodying the present invention at the time of forward operation, FIG. 2 is a side view of the ridge forming machine at the time of forward operation, and FIG. 4 is a plan view of the ridge forming machine when it is not working, FIG. 5 is an operation diagram showing a rotating operation of the ridge forming machine, FIG. 6 is a side view of the ridge forming machine when it is not working, and FIG. FIG. 8 is an operation diagram illustrating a rotation operation in the embodiment.
[0010]
One embodiment of the ridge forming machine A according to the present invention will be described with reference to FIGS. The ridge forming machine A supports the mounting frame 1 having the tractor mounting portion, the ridge forming work 2 for performing the ridge forming work, and the ridge forming work 2 in the horizontal direction, and moves the ridge forming work 2 to the forward working position. A supporting frame 3 which is horizontally rotatable so as to be able to be arranged at a backward working position and a moving traveling position; a displacement means 4 for displacing the center of gravity of the ridge forming working body 2 with respect to the mounting frame 1; Work position lock means 5 for fixedly holding the arranged ridge forming work body 2 is provided.
[0011]
The mounting frame 1 includes a main frame 11, a U-shaped base 12 opened rearward in a side view, and side plates 13, 13 provided at both ends of the main frame 11 and the base 12, thereby forming a rectangular frame in a plan view. You. A mounting mast 14 is provided forward of the mounting frame 1 on the tractor side, and is connected to a tractor three-point link mechanism (not shown).
[0012]
The mounting mast 14 includes a top link bracket 14T connected to the top link of the tractor three-point link mechanism, and lower link brackets 14L and 14R having lower link pins connected to the lower link.
[0013]
On the upper surface plate 12a and the lower surface plate 12b of the base 12 formed in a U-shape behind the mounting frame 1, there are provided rotation bosses 12c, 12c having rotation holes penetrating coaxially in the vertical direction when viewed from the side. is there. Further, an input shaft 15 rotatably supported toward the front on the tractor side is provided at a lower front portion of the mounting frame 1 at a lower front portion in a side view. Although not shown, a universal joint (not shown) is connected to the front end of the input shaft 15, and a driving force for performing a row forming operation is input from the tractor PTO shaft via the universal joint.
[0014]
The ridge forming work body 2 includes a transmission case 21 that extends in the front-rear direction in a plan view and is formed in a thin and U-shape in a side view, an embankment device 22 that is driven and transmitted by the transmission case 21, a ridge top surface shaving device 23, The ridge forming devices 24 are sequentially arranged in line from the front in the working direction.
[0015]
A work input shaft 21a protrudes from an inner side surface on the tractor side at a vertex of a transmission case 21 formed in a cross shape of the ridge forming work body 2, a chain device is provided inside the case, and an outer side surface is provided. An embankment drive shaft 22a for driving the embankment device 22 and a ridge formation drive shaft 24a for driving the ridge formation device 24 project rearwardly in a plan view, and are driven to rotate by the chain device. The ridge upper surface excavation drive shaft 23a which is located coaxially with the work input shaft 21a and drives the ridge upper surface excavator 23 is provided.
[0016]
The work input shaft 21a is connected to a rear end portion of the input shaft 15 provided on the mounting frame 1 by a drive transmission means that is expandable and contractible. This drive transmission means uses an extendable double wide-angle joint 16. The use of the double wide-angle joint 16 is advantageous because the drive can be easily transmitted even in a configuration in which the work input shaft 21a of the ridge forming work body 2 and the input shaft 15 are orthogonal to each other.
[0017]
The embankment device 22 is provided with a plurality of embankment claws 22c provided on an embankment rotor shaft 22b detachable from the embankment drive shaft 22a. The embankment device 22 excavates the soil in the field scene and the soil on the old ridge side surface and sends the soil backward.
[0018]
The ridge top surface excavating device 23 is configured by providing a plurality of ridge top surface excavation claws 23c on a shaving rotor shaft 23b detachable from the ridge top surface excavation drive shaft 23a, and excavates soil and weeds on the ridge upper surface. The soil is mixed with the embankment raised by the embankment device 22 and sent backward.
[0019]
The ridge forming device 24 includes a conical ridge side forming disk 24b that forms a ridge side detachably attached to the ridge forming drive shaft 24a, and a cylindrical shape that faces outward from the vicinity of the apex of the ridge side forming disk 24b. The embankment is formed by a combination with a ridge upper surface forming roller 24c, and the embankment mixed by the embankment device 22 and the ridge upper surface shaving device 23 is rotationally driven to apply a ridge to the old ridge.
[0020]
The support frame 3 includes an arm body 31a having a rectangular cross section and a horizontally long arm, a support arm 31 including a rotation boss 31b having a rotation hole vertically penetrated at one end of the arm body 31a, and the ridge forming operation. The transmission case 21 of the body 2 is constituted by a support bracket 32 which is interposed and suspended.
[0021]
The support bracket 32 includes a support pipe 32a having a rectangular opening having the same shape as the rectangular cross section of the arm body 31a, and a work input shaft extending downward from the support pipe 32a and projecting from both right and left sides of the transmission case 21. Support plates 32b, 32b for rotatably supporting the outer peripheral portion of the shaft 21a and the ridge top surface shaving output shaft 23a in the front-rear direction in a side view, and guide pins 32c, which are guide members protruding below the support pipe 32a. Consists of
[0022]
The pivot holes opened in the pivot boss 31b of the support arm 31 and the pivot holes of the pivot bosses 12c, 12c provided in the base 12 of the mounting frame 1 have the same shape, and the axes of the pivot holes coincide with each other. The support frame 3 is rotatably supported in the horizontal direction in the left and right directions in plan view by inserting the rotation shaft 33 serving as a vertical axis.
[0023]
Then, the support pipe 32a of the support bracket 32 is fitted into the arm body 31a of the support arm 31, the support bracket 32 is slidable in the longitudinal direction of the support arm 31, and the ridge forming work body 2 supported by the support bracket 32 is moved. In addition to being suspended at the outer end, the ridge forming work body 2 is slid in the longitudinal direction of the support arm 3 so that the suspended position can be displaced.
[0024]
The ridge forming work body 2 suspended from the support arm 3 is moved forward by a horizontal rotation of the support arm 3 and is moved forward by a tractor, as shown in FIG. As shown in FIG. 4, the ridge forming work body 2 can be arranged at a traveling position where it is arranged behind the tractor. An extendable actuator is provided between the support pipe 32a and the transmission case 21 which is held so as to be able to rotate back and forth. The actuator is a driving device that converts energy into translation or rotation by a hydraulic pressure or an electric motor. In this embodiment, an electric hydraulic cylinder 25 is used.
[0025]
The transmission case 21, that is, the ridge forming work body 2, which is held by the support bracket 32 and is rotatable in the front-rear direction when viewed from the side, is formed by the electric hydraulic cylinder 25 erected between the support bracket 32 and the transmission case 21. It is possible to regulate the ridge formation height by restricting the front-rear rotation of the ridge 2, and a tractor driver can remotely control the ridge formation work 2 by remote control using a control box (not shown) arranged near the tractor driver's seat. It becomes possible to set the ridge formation height.
[0026]
Further, the double wide-angle joint 16 which is the drive transmission means follows the position change of the ridge forming work body 2 which is horizontally rotated while expanding and contracting, and also changes the relative angle between the input shaft 15 and the work input shaft 21a. Therefore, driving can be easily transmitted to an agricultural work machine such as a ridge forming machine that changes the work position by horizontally rotating the work.
[0027]
The displacement means 4 is for displacing the position of the center of gravity of the ridge forming working body 2 which is slidable in the longitudinal direction of the support frame 3, and is formed in an arc-shaped long hole in a lower surface plate 12 b of a base 12 constituting the mounting frame 1. And a guide groove 41 having an opening. The guide groove 41 opened in an arc shape is provided with the center of the opening radius ahead of the center of rotation of the support frame 3, and the pipe body 32 a of the support bracket 32 for suspending the ridge forming work 2 in the guide groove 41. The guide pin 32c, which is a guide member projecting downward, is engaged, and the ridge forming work body 2 suspended by the support bracket 32 with the rotation of the support frame 3 is supported along the guide groove 41. The support arm 31 of the frame 3 is configured to slide.
[0028]
The work position lock means 5 includes a lock pin 51 slidably attached to the arm body 31a of the support arm 31 so as to penetrate in the vertical direction and protrude from the lower surface, and an operation lever 52 for vertically moving the lock pin 51. Be composed. By rotating the operation lever 52 downward, the lock pins 51 are engaged with and disengaged from three work position lock holes 53a, 53b, and 53c opened on the lower surface of the base 11 of the mounting frame 1, and are arranged at arbitrary work positions. It can be fixed.
[0029]
The work position lock hole 53a opens on the lower surface of the base 11 on the right side in plan view on an arc of a radius connecting the rotation shaft 33 as a center and the axis of the lock pin 51. By inserting the lock pin 51, the ridge forming work body 2 is fixed at a forward working position where the ridge forming work is performed based on the tractor forward running.
[0030]
The work position lock hole 53b is opened at a position 90 ° out of phase with the work position lock hole 53a, and the lock pin 51 is inserted into the work position lock hole 53b to move the ridge forming work body 2 to the rear of the tractor. Fix to the traveling position to be placed.
[0031]
The work position lock hole 53c is opened at a position 180 ° out of phase with the work position lock hole 53a, and the lock pin 51 is inserted into the work position lock hole 53c, so that the ridge forming work body 2 travels backward on the tractor. Is fixed to the reverse work position where the ridge formation work is performed based on.
[0032]
In this way, the one support frame 3 is horizontally rotated with the one rotation shaft 33 as the rotation shaft fulcrum, so that the rotation operation is performed once and a ridge forming operation is performed at a desired working position or at the rear of the tractor when not working. The body 2 can be arranged.
[0033]
The operation of the displacement means 4 for sliding the ridge forming work body 2 in conjunction with the horizontal rotation operation of the support frame 3 will be described with reference to FIGS. First, a desired working position is set as a forward working position a, and the ridge forming working body 2 is arranged to protrude rightward with respect to the tractor.
[0034]
A guide pin 32c projecting below a support bracket 32 that supports the ridge forming work body 2 is engaged with a guide groove 41 having an arc-shaped long hole opened on the lower surface of the base 12 that forms the mounting frame 1. At the same time as the support frame 3 for suspending the ridge forming work body 2 is horizontally rotated from the forward work position a, the ridge forming work body 2 starts sliding gradually toward the tractor along the guide groove 41.
[0035]
A guide groove 41 having an arc-shaped long hole opened in the lower surface plate 12b of the base 12 constituting the mounting frame 1 is provided with a center Ga of an opening radius R of the guide groove 41 provided forward of a rotation center Gb of the support frame 3. By doing so, when the support frame 3 comes to a position protruding backward with respect to the tractor, that is, a moving travel position b during non-work, the ridge forming working body 2 ′ fixed at the outer end to the conventional support frame 3. In contrast, the ridge forming work body 2 is slid forward by the slide amount L, and the position of the center of gravity is displaced forward on the tractor side.
[0036]
When the support frame 3 is further horizontally rotated, the guide pin 32c projecting below the support bracket 32 slides outwardly along the guide groove 41, and the ridge forming work body 2 supported by the support bracket 32 slides outward. When the frame 3 is disposed at a position protruding leftward with respect to the tractor, the ridge forming work body 2 suspended from the support frame 3 is in the reverse working position C based on the backward running of the tractor.
[0037]
FIG. 7 shows another embodiment of the displacement means 4. The guide groove 42 opening on the lower surface of the base 12 constituting the mounting frame 1 has an arc opening 42a having an opening radius center Ga provided forward of the rotation center Gb of the support frame 3, and an opening radius of the arc opening 42a. It is formed from horizontal openings 42b, 42b opened to the right and left outward from the intersection of the horizontal center line of the rotation center Gb of the support frame 3 with R, and below the support bracket 32 for suspending the ridge forming work body 2. The projecting guide pins 32c are engaged, and the ridge forming work 2 suspended by the support bracket 32 with the rotation of the support frame 3 slides the support arm 31 of the support frame 3 along the guide groove 41. It is configured to be.
[0038]
The support pin 3c of the support bracket 32, which protrudes to the left and right sides with respect to the tractor, supports the ridge forming work body 2 at the forward working position a and the backward working position c, and is slidable with respect to the support arm 31, has a guide groove. The horizontal opening portion 42b of the supporting frame 3 can be moved in the horizontal direction, that is, the ridge forming work body 2 can be moved in the horizontal direction. The positioning holes 44 opened in the vertical direction are aligned with each other, and the positioning pins 45 are inserted and fixed and held so that the amount of protrusion to the side with respect to the tractor can be adjusted, and the alignment of the ridge formation position can be easily performed. It is possible to do it.
[0039]
【The invention's effect】
As described above, one support frame is horizontally rotated with one rotation axis as a rotation axis fulcrum, and the ridge forming work body is arranged at a desired working position or at the rear of the tractor in a non-working state with one rotation operation. Simplification of the structure of the rotating part, and the provision of the displacement means interlocking with the horizontal turning operation of the ridge forming work body allows the ridge forming work body to be moved rearward during traveling while not working. Even when the tractor is disposed, the amount of rearward projection can be reduced, and the front-rear balance of the tractor is improved.
[0040]
In addition, by extending the opening shape of the guide groove in the horizontal direction, the ridge forming work body can be slid left and right, the amount of protrusion to the tractor sideways can be adjusted, and matching with the tractor is improved. . Moreover, the position of the ridge formation position can be easily adjusted, and there is no turning operation of the tractor for adjusting the ridge formation position in the field, so that the field is not damaged.
[Brief description of the drawings]
FIG. 1 is a plan view of a ridge forming machine embodying the present invention at the time of advancing work. FIG. 2 is a side view of the ridge forming machine at a time of advancing work. FIG. FIG. 4 is a plan view of the ridge forming machine when it is not working. FIG. 5 is an operation diagram showing a rotating operation of the ridge forming machine. FIG. 6 is a side view of the ridge forming machine when it is not working. Operational diagram showing the rotation operation in the embodiment of the present invention.
Reference Signs List 1 mounting frame 11 main frame 12 base 12a upper surface plate 12b lower surface plate 12c rotating boss 13 side plate 14 mounting mast 14T top link bracket 14L, 14R lower link bracket 15 input shaft 16 double wide angle joint 2 ridge forming work body 21 transmission case 21a work Input shaft 22 Embankment device 22a Embankment drive shaft 22b Embankment rotor shaft 22c Embankment claw 23 Ridge top surface excavation device 23a Ridge top surface excavation drive shaft 23b Ridge top surface excavation claw 24 Ridge formation device 24a Ridge formation drive shaft 24b Row side forming disc 24c Row top forming roller 25 Electric hydraulic cylinder 3 Support frame 31 Support arm 31a Arm body 31b Rotation boss 32 Support bracket 32a Support pipe 32b Support plate 32c Guide pin 33 Rotation axis 4 Displacement means 41 Guide groove 42 Guide Groove 42a Arc opening 42b Horizontal opening 43 Adjusting hole 44 Positioning hole 45 Positioning pin 5 Working position locking means 51 Lock pin 52 Operating lever 53a, 53b, 53c Working position locking hole A Row forming machine Ga Opening radius center Gb Rotation center L Slide Quantity R Opening radius

Claims (2)

A mounting frame to be mounted on the tractor, a forward work position for performing the ridge forming operation on the ridge forming work body with respect to the mounting frame based on the tractor forward running, and a reverse working position for performing the ridge forming operation based on the tractor reverse running. In a ridge forming machine equipped with a horizontal rotation mechanism that can be arranged at the rear of the tractor and can be arranged at a traveling position during non-working, the center of gravity of the ridge forming work body arranged at the rear is linked with the rotation operation. A ridge forming machine comprising displacement means for displacing to the tractor side. A mounting mast and an input shaft are provided in front of the mounting frame, and a base of a support frame having a ridge forming work body provided on an outer side is rotatably supported on a vertical axis at a rear portion of the mounting frame so as to be horizontally rotated. The ridge forming work body is configured to be slidable with respect to the support frame, and a guide groove is opened in the mounting frame, and a guide member engaging with the guide groove is provided on the ridge forming work body. 2. The ridge forming machine according to claim 1, wherein the ridge forming member is a displacement means for displacing the center of gravity of the ridge forming member along the guide groove in conjunction with the rotation of the frame.

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