JP2005245350A - Furrow-forming machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a rotating mean part capable of rotating a furrow-forming part by 180° and working by retreating a tractor, as more compact. <P>SOLUTION: This furrow-forming machine attached to the tractor is provided by loading a furrow-forming part at an un-plowed working part at a corner part of the furrow where the tractor meets a dead end, fixing a gear to a rotary boss of a supporting frame attached to an attaching frame and rotating, installing a rack reciprocated by a cylinder mechanism for rotating the same, installing a gear for biting with them and relaying to rotate the furrow-forming part, also installing a cam at the same shaft with the relaying gear, detecting the rotating position of the supporting frame by a potentiometer moving together with the came and remote-controlling. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a paddle forming machine to be mounted on a tractor, provided with a paddle forming apparatus that excavates mud in paddy fields and fills it into an old paddle, and compresses the formed paddle while forming the paddle. In the uncultivated working part, the cocoon forming device is reversed and the tractor is moved backward while trying to perform the cocoon forming work, and particularly relates to a reversing mechanism at the time of reversal.

As a background art, many proposals have been made to reverse the heel-forming portion and reverse the tractor in order to eliminate the uncultivated working portion at the corner of the paddy field during the heel-forming operation. For example, “a pretreatment body equipped with a tilling rotor that is attached to the rear part of the traveling machine body, receives power from the traveling machine body, and cultivates a part of the main fence and the field and raises it in a bowl shape, and is cultivated by this pretreatment body. A drum-shaped trimming body that is formed into a basket while rotating the soil, the pretreatment body and the trimming body are supported by one frame structure, and from one transmission frame to the pretreatment body and the trimming body In a wrinkle coater configured to transmit power, the pretreatment body and the trimming body can be rotated 180 degrees horizontally with the transmission frame as a rotation center, and the pretreatment body and the trimming body are linked to each other. A wrinkle forming machine described as “a wrinkle coater characterized in that the link body is operated by expansion and contraction of a cylinder mechanism” is known. (Patent Document 1)
JP 2001-28902 A

  According to the above background art, when the pretreatment body and the trimming body are actuated by the expansion and contraction of the cylinder mechanism in the horizontal direction via the link body, the link body is operated according to the angle between the expansion and contraction direction of the cylinder mechanism and the arm of the link body. The turning force acting on the arm will change. In other words, the thrust of the cylinder mechanism is not lost when the link arm and the expansion / contraction direction of the cylinder mechanism are perpendicular to each other, and the rotational force is not lost. By increasing / decreasing from the position, the thrust of the cylinder mechanism is dispersed, and the thrust of the cylinder mechanism serving as rotational power is lost. As a result, the thrust of the cylinder mechanism serving as the rotational force is lost, so that the thrust of the cylinder mechanism needs to be increased, and the manufacturing cost increases. In addition, when the airframe is finished compactly, the cylinder mechanism itself becomes large, which causes a problem.

  In addition, when remotely controlling the rotation operation of the ridge forming portion from the tractor driver's seat, a controller for operating is provided, and detection means for detecting the rotation position of the ridge formation portion is provided, and a control circuit is provided based on this detection signal. Although it will be controlled, the components of the detection means are simplified and the detection unit is configured in a compact manner.

  In order to solve the above-described problem, in the invention according to claim 1, the mounting frame having the relay power transmission portion for transmitting the power from the tractor and the rotation shaft provided at the substantially central portion of the rear of the mounting frame are mainly used. A support frame provided with a rotating means for rotating in the horizontal direction, and a saddle-forming part having an input transmission part on the other part of the support frame, and a relay power transmission part of the mounting frame and an input transmission part of the saddle-forming part In the wrinkle forming machine configured to connect the double wide angle joint to the wrinkle forming portion and drive the wrinkle forming portion, the rotating means of the support frame fixes a gear to the rotating boss of the support frame and meshes with the gear. Then, an intermediate gear having a rotation shaft is provided on the mounting frame side, and a rack meshing with the intermediate gear is reciprocated by a cylinder mechanism attached to the mounting frame to rotate the support frame.

  In order to solve the above-mentioned problems, in the invention according to claim 2 of the present invention, there is provided a mounting frame having a relay power transmission portion to which power is transmitted from the tractor, and a circuit provided at a substantially central portion at the rear of the mounting frame. A support frame provided with a rotating means that rotates in a horizontal direction around a moving shaft, and a hook forming part having an input transmission part on the other part of the support frame are provided, and a relay power transmission part and a hook forming part of the mounting frame are provided. In the scissor forming machine configured to connect the double wide-angle joint to the input transmission unit and drive the scissor forming unit, the rotation means of the support frame is meshed with a gear fixed to the rotation boss of the support frame. Then, a cam that rotates integrally with an intermediate gear provided with a rotation shaft on the mounting frame side is provided, and the rotation position of the support frame is detected by detecting the rotation position of the support frame with a potentiometer linked to the cam. And remote control via the control circuit the rotation fixing means.

  In the first aspect of the present invention, when the support frame provided with the flange forming portion is rotated, it is rotated by the rack and the gear, so that the thrust of the cylinder mechanism is always the rotational force regardless of the rotation position of the support frame. It can work in the same direction and give power without loss.

  As a result, the thrust of the cylinder mechanism can be used without losing it, so it is possible to select one with a smaller thrust of the cylinder mechanism, which is advantageous for cost reduction in the manufacture of the ridge forming machine, and the cylinder mechanism is compact. Accordingly, the rotation mechanism can be made compact. Furthermore, a gear that meshes with and relays between the gear of the rotating boss of the support frame and the rack that reciprocates by the cylinder mechanism that rotates the gear is adjusted, so the number of teeth of this gear is adjusted. By doing so, it can be converted to obtain a large rotation stroke of the support frame with a small stroke of the cylinder mechanism, and the rotation mechanism portion in the mounting frame can be configured more compactly.

  According to a second aspect of the present invention, a cam that rotates integrally with a gear on the mounting frame that meshes with a gear fixed to a rotating boss of the support frame is provided, and a potentiometer linked to the cam is used to Since it is configured to detect the rotation position, the large displacement stroke of the support frame can be reliably converted to a small stroke to match the displacement stroke of the potentiometer, and the components can be simplified and the detector can be made compact. Can be configured.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a heel-forming machine according to the present invention during a forward operation, FIG. 2 is a plan view of a heel-forming machine during a backward operation, FIG. 3 is a right side view of the heel-forming machine during a forward operation, FIG. FIG. 5 is a plan view of the main part of the rotation driving means, FIG. 6 is a side view of the main part of the rotation driving means, and FIG. 7 is a side view of the double wide-angle joint. FIG. 8 is a plan view of the main part of the operating mechanism of the potentiometer of the rotation drive means, FIG. 9 is an explanatory view of the fixing means of the rotation part, FIG. 10 is a control circuit flow diagram, and FIG. FIG. 12 is a flow chart of the work position “forward” and “reverse” work process, FIG. 13 is a work position “movement” operation operation flow chart, and FIG. 14 is an operation operation flow chart in the single operation mode. FIG. 15 is an explanatory diagram of the operation panel of the controller.

  1 to 4, reference numeral 1 denotes a mounting frame, which has a pair of lower pins 11 and a top bracket 12 in the front, and is connected to a rear three-point link hitch (not shown). Reference numeral 2 denotes a support frame, the base is pivotally supported by a pivot shaft 4 provided at the substantially central portion of the rear portion of the mounting frame 1, and the flange forming portion 3 is disposed at the other end via a pipe frame 22. Become. The pipe frame 22 is configured to be slidable on the outer periphery of the support frame 2. The ridge forming unit 3 includes a banking device 31 having excavation claws 36, a ridge top surface earthing device 33, and a ridge forming device 32.

  Reference numeral 52 denotes a double wide-angle joint. Power is conducted from the tractor PTO shaft to configure the relay transmission unit 5, and the rotational force is transmitted to the input transmission unit 54 of the rod forming unit 3. Reference numeral 23 denotes a support frame boss, which is provided at the base of the support frame 2 so as to be rotatable in the horizontal direction with respect to the rotation shaft 4, and 24 fixing plates are provided horizontally. Reference numeral 6 denotes an electric motor unit, which will be described in detail later, and is an apparatus for electrically operating the lock plate 62 with respect to the fixing plate 24 by using the battery 90 of the tractor as a power source. 75 is operated and operated via the relay box 91.

  FIG. 2 shows a plan view state in which the bag forming unit 3 of FIG. 1 is set at the forward work position and is turned 180 degrees around the rotation shaft 4 to be in the backward work position. A transmission unit 5 is provided below the central portion of the mounting frame 1, and the transmission unit 5 is provided with an input shaft 51 input from a tractor, and connects the front end of the double wide-angle joint 52 to the rear end. The other end of the double wide-angle joint 52 is connected to the transmission shaft 53 of the input transmission case 54 and drives the hook forming portion.

  Reference numeral 2 denotes a support frame, which is provided with a support frame boss 23 at the front end, and is supported so as to be able to turn in the horizontal direction with the rotation shaft 4 as a fulcrum. Reference numeral 22 denotes a pipe frame, which is slidably provided on the outer periphery of the support frame 2 described above. The lock pin 62 engages with an engagement hole of the fixing plate 24 provided in the support frame boss 23 to prevent the support frame 2 from turning.

  Reference numeral 43 denotes a connecting rod, which spans between a first pin 41 positioned in front of the traveling direction with respect to the rotation shaft 4 on the mounting frame side, and a second pin 42 provided on the upper part of the pipe frame 22 on the flange forming part side. It is a thing. In this embodiment, the connecting rod 43 has a turnbuckle structure in which left and right screw shafts are inserted at both ends of the central body frame, and the left and right screw shaft ends are fixed to the first pin 41 and the second pin 42. The length of the connecting rod is expanded and contracted by rotating the central body.

  In the forward work position a and the reverse work position c, the hook forming part 3 can offset the hook forming part 3 to the left and right outside in the tractor traveling direction by expanding and contracting the length of the connecting lot, and is adjusted to the tire width of each tractor. Can be adjusted to the position. Further, when it is turned to the moving travel position b, the pipe frame 22 slides on the support frame 2 and moves to the tractor side of the L dimension shown in FIG. Compared with the case where the support frame is rotated, the position of the center of gravity is closer to the tractor side, and the balance when traveling is improved.

  In FIG. 3, when adjusting the ridge height during the ridge formation work, when the ridge height adjusting cylinder 92 is expanded and contracted, the embankment device 31 is centered on a rotating portion coaxial with the rotation axis of the ridge top surface earthing device 33. The wrinkle forming part 3 rotates in the vertical direction.

  When it is desired to increase the ridge height, the culvert forming unit 3 is rotated upward by rotating the embankment device 31 downward, and the culm height is increased by separating the embankment device 31 from the culvert formation unit 3 in the vertical dimension. The height increases. Conversely, when it is desired to reduce the height of the ridge, the embankment device 31 is rotated upward.

  Reference numeral 93 denotes a horizontal gauge, which indicates the position of the embankment device 31 and the ridge forming unit 3 at the standard ridge height. When the ridge is formed, the horizontal gauge 93 can be used as a guide.

  5 and 6, the rotation means of the ridge forming portion 3 will be described. A rotation gear 73 and a fixing plate 24 are fixedly provided on the support frame boss 23 of the support frame 2, and the piston lot 71 of the cylinder mechanism 7 provided on the mounting frame side is in a direction in which the piston lot reciprocates. A rack 86 having teeth is fixedly provided, and a first intermediate gear 72 that meshes with the rack 86, and a rotation gear 73 of the support frame boss and the teeth rotate together with the first intermediate gear. A second intermediate gear 72 a to be coupled is rotatably attached to the mounting frame 1 by an intermediate shaft 74.

  As a result, the rack 86 is reciprocated by reciprocating the piston lot 71 of the cylinder mechanism 7, and the first intermediate gear 72 that meshes with the rack 86 is rotated to rotate integrally with the first intermediate gear. The gear meshes with the rotation gear 73 of the support frame boss to rotate the support frame. Even if the second intermediate gear is omitted and the first intermediate gear 72 and the rotation gear 73 of the support frame boss are directly meshed with each other, the gist of the present invention does not change.

  The fixing plate 24 fixed to the support frame boss 23 is provided with engagement holes 63, 63a, 63b. The lock pin 62 is moved up and down to be inserted into each engagement hole, so that the support frame is moved forward. , It can be fixed to each position of the reverse work position and the moving travel position.

  FIG. 7 is a plan view of the mounting state of the double wide-angle joint when the eaves forming portion 3 is rotated to each of the forward operation position a, the moving travel position b, and the reverse operation position c. The motive power can be transmitted by being converted into a direction perpendicular to the input shaft by the double wide angle joint at the forward working position and the backward working position.

  FIG. 8 is a plan view showing an operation mechanism of a potentiometer for detecting the rotation position of the rotation drive means, and a first intermediate gear 72 and a second intermediate gear 72a that are rotated by a rack 86 reciprocated by the cylinder mechanism 7. And a swing arm 83 that swings around a swing pin 83b attached to the mounting frame in conjunction with the cam. The swing arm 83 and the potentiometer 8 rotate. A link arm 81 attached to the shaft is connected by a connecting rod 82, and when the cam 34 interlocked with the gear rotates with the rotation of the support frame 2, the swing arm 83 swings due to the displacement of the cam 34. The link arm 81 of the potentiometer 8 is swung. The swing arm 83 is provided with a cam roller 83a for interlocking with the displacement of the cam, and is always in contact with the cam surface of the cam 34 by a spring 85.

  The potentiometer 8 changes the internal resistance value when the rotation shaft is rotated, and outputs a change in output voltage based on the change in resistance value as a signal. The potentiometer 8 uses the rotation position of the support arm 2 as a signal. Output to the control circuit.

  In FIG. 9, the operation of releasing the fixing of the swivel unit will be described. When an unlocking instruction is given to the electric motor 65 in the electric motor unit 6, the electric motor 65 rotates to rotate the rotating gear 66 in the F4 direction to raise the link rod 61 and rotate the link shaft 64. The lock pin 62 is moved down to be pulled down from the engagement hole 63 of the fixing plate 24 to release the fixing. At this time, the upper side portion of the rotation gear 66 contacts the limit switch S1, and the rotation of the electric motor 65 is turned off. Next, before the support frame 2 turns and reaches the next engagement hole 63a, when the control circuit operates by a signal from the potentiometer and gives a fixing instruction to the electric motor 65, the rotation gear 66 rotates in the F5 direction. Then, the link rod 61 is pushed down, and the lock pin 62 is lifted through the link shaft 64. At this time, the lower side of the rotation gear 66 presses the limit switch S2, and the electric motor stops.

  A coil spring 67 is mounted and elastically attached to the base of the lock pin 62, and the top of the lock pin 62 slides while contacting the lower surface of the fixing plate 24. When the lock pin 62 reaches the engagement hole 63a, the lock pin 62 is coiled. It is inserted and fixed by the repulsive force of 67. Simultaneously with the end of the insertion operation into the fixing hole 63a of the lock pin 62, the limit switch S3 is pressed to stop the cylinder mechanism 7 for rotating the support frame.

  Next, the remote control process operation for each work position based on the present embodiment will be described based on FIGS. 10, 11, 12, 13, 14, and 15. FIG. FIG. 10 shows the overall process for the work position and work action items shown in the controller 75 of FIG. First, when the power is turned on, (1) the work machine position state confirmation step is performed, and the work machine position is determined based on a preset turning angle and a potentiometer voltage value signal. Next, (2) work position “forward” and “reverse” operation operation process, (3) work position “movement” operation operation process, and (4) operation operation process in single operation mode are appropriately selected by the tractor operator and function. It is.

  In the present embodiment, the potentiometer voltage value confirmation in FIG. 11 is shown in a comparison table in which the voltage value is set according to the turning angle with respect to the work position. The forward position is set to 0 degrees, the moving position is set to 90 degrees, and the reverse position is set to 180 degrees with respect to the rotation axis 4, and the current position recognition and lock fixing release instruction points in the respective moving ranges are determined. is there.

  Next, as a representative of the setting of the work position, the operation operation process of the work position “forward” in FIG. 12 will be described. When the forward switch is turned on, a turn command is issued in the 0V direction of the potentiometer. At this time, if the potentiometer voltage exceeds 2V in determining whether it is 2V or higher, YES is determined, the lock motor (electric motor 65) is rotated upward, and the lock upper limit switch of S1 is pressed to lock the motor (electric motor 65). Stop. Thereafter, the cylinder mechanism 7 which is a rotation cylinder is driven to rotate in the 0V direction, stopped at the voltage 2V position, the lock motor is driven downward, and the lock pin 62 is set to the fixed operation position. The limit switch of S2 is pressed to stop the lock motor (electric motor 65).

  Subsequently, the rotating cylinder mechanism 7 is driven in the 0V direction. At this time, the top of the lock pin 62 is pressed and slid by the coil spring on the lower surface of the fixed plate 24, and is raised when the position reaches the engagement hole 63b. At the same time, the limit switch in S3 is pressed to stop the turning cylinder and determine the forward working position.

  The operation in the single operation mode will be described based on FIG. The controller 75 gives an instruction for each work position described above to perform one-touch control of the desired work. If the circuit does not work correctly due to malfunction or accident of the circuit, the work on the field is stopped as it is. I have to. In such a situation, the controller 75 selects “single operation setting” and jumps to the control circuit such as the work position, the lock position, and the turning drive, and the necessary “forward”, “reverse” or lock means If you indicate "exit" or "enter" when the lock is instructed, each function operates independently, so even if the control circuit does not move properly, the desired desired position is set manually and the painting operation is stopped on site You can continue without it.

The top view at the time of the advance operation | work of the wrinkle forming machine which implemented this invention Top view during reverse operation Right side view of the ridge former during forward movement Left side view with partial omission when the ridge former is moving Plan view of the main part of the rotation drive means Side view of the main part of the rotation drive means Plan view explaining the mounting state of the double wide-angle joint Actuator main part plan view of potentiometer of rotation drive means Explanatory drawing of the fixing means of the rotating part Control circuit flow diagram Flow chart of work equipment position status confirmation process Work position “forward” and “reverse” work process flow chart Working position "Move" operation operation flow chart Flow chart of operation in single operation mode Controller operation panel illustration

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mounting frame 11 Lower pin 12 Top bracket 2 Support frame 22 Pipe frame 23 Support frame boss 24 Fixing plate 3 Grain forming part 31 Graining device 32 Grain forming device 33 Grain top surface earthing device 34 First chain case 35 Second chain case 36 Excavation Claw 4 Rotating shaft 41 First pin 42 Second pin 43 Connecting rod 5 Relay transmission portion 51 Input shaft 52 Double wide angle joint 53 Transmission shaft 54 Input transmission portion 6 Electric motor unit 61 Link rod 62 Lock pin 63 Engagement hole 63a Joint hole 63b Engagement hole 64 Link shaft 65 Electric motor 66 Rotating gear 67 Coil spring 7 Cylinder mechanism 71 Piston lot 72 First intermediate gear 72a Second intermediate gear 73 Rotating gear 74 Intermediate shaft 75 Controller 8 Potentiometer 81 Link arm 82 Connection Rod 83 Swing arm 83 Cam roller 83b pivot shaft 84 the cam 85 spring 86 rack 90 Battery 91 relay box 92 ridge height adjustment cylinder 93 horizontally gauges S1, S2, S3 limit switch

Claims (2)

  A mounting frame having a relay power transmission portion for transmitting power from the tractor, and a support frame provided with a rotating means for rotating in a horizontal direction around a rotating shaft provided at a substantially central portion at the rear of the mounting frame; A hook forming part having an input transmission part is provided on the other part of the support frame, and a double wide angle joint is connected to the relay power transmission part of the mounting frame and the input transmission part of the hook forming part to drive the hook forming part. In the wrinkle forming machine, the rotation means of the support frame has a gear fixed to a rotation boss of the support frame, and is provided with an intermediate gear that meshes with the gear and has a rotation shaft on the mounting frame side. A scissor forming machine characterized in that a rack meshing with the intermediate gear is reciprocated by a cylinder mechanism attached to a mounting frame to rotate a support frame. 2. A wrinkle forming machine according to claim 1, wherein a cam that rotates integrally with an intermediate gear provided with a rotation shaft on the mounting frame side is provided by engaging with a gear fixed to a rotation boss of the support frame. A wrinkle forming machine characterized in that the rotation and rotation fixing means of the support frame are remotely controlled via a control circuit by detecting the rotation position of the support frame with a potentiometer linked to the control frame.

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