JP2008011787A - Levee plastering machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a levee plastering machine whose enlargement is prevented and which facilitates a switching operation, when a working portion is moved to an ordinary working position without contacting a pretreating portion with a mounting portion. <P>SOLUTION: This levee plastering machine 1 has an offset angle sensor 52 for detecting the offset angle of a connection mechanism portion 40 to a mounting portion 10, a rotation angle sensor for detecting the rotation angle of a working portion 20 on the moving end side of the connection mechanism portion 40, and an ordinary position return switch which is operated, when the working portion 20 is moved to a working portion 20-workable ordinary working position along the travel of a travel machine frame. The connection mechanism portion 40 is laterally swung by the extension and contraction of an offset cylinder, and the working portion 20 is rotated with a direction cylinder 31. A controller considers the detection values of the sensors and controls the operations of the offset cylinder and the direction cylinder so that the working portion 20 does not contact with equipments disposed in the mounting portion 10, and controls the operations of the cylinders so that the working portion 20 is moved to an ordinary working position, when the ordinary position return switch is switched on. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a scissoring machine that is mounted on a traveling machine body and capable of performing a smearing operation on a side position with respect to a traveling position of the traveling machine body.

  The plastering machine is used to form a paddle over the outer edge of a wide field, and has recently been attracting attention as having achieved mechanization of the plastering work that requires a great amount of time and labor. This coater advances along the old kite along with the traveling of the traveling machine body, and depending on the conditions of the field, etc., it is necessary to adjust the position and orientation of the working unit during the coating operation. In view of this, the present applicant has proposed a coater that can automatically adjust the position and orientation of the working unit (see Patent Document 1).

  One embodiment of this coater includes a mounting portion mounted on the rear portion of the traveling machine body, a transmission frame pivotally supported in the central portion of the mounting portion so as to be swingable in the left-right direction, and left and right with the transmission frame in the center. A pair of parallel link members that are arranged on both sides and whose front side is pivotally supported on both left and right ends of the mounting portion, and a transmission that pivotally pivots the rear end portions of the transmission frame and the pair of parallel link members in a horizontal direction. A parallel link member that detects the position of the main frame with respect to the support frame, the transmission / support frame, and a working part that can be horizontally rotated with respect to the working part and moves the working part to a preset position. And a controller for controlling the left and right swinging and rotation of the working unit. The working unit includes a pre-processing unit that cuts a part of the old iron and deposits the soil, and a trimming unit that applies the piled soil on the old iron that has been cut. The pair of parallel link members can be swung left and right and the working unit can be rotated by an operator's switch operation.

JP 2004-254522 A

  Such a brush coater is disposed so that the working part is positioned below the transmission frame and the pair of parallel link members. However, if the working part is moved to the parallel link member side, the pretreatment of the working part is performed. There is a risk that the part may come into contact with and damage the equipment provided on the mounting part. Therefore, if the length of the transmission frame or the parallel link member is increased, the pretreatment unit does not come into contact with the equipment, but the problem arises that the coater itself becomes larger and the cost increases.

  In addition, when the work unit is moved from the state where the work unit is located at an arbitrary position to the normal work position where the work unit can be smeared along the travel of the traveling machine body, the parallel link member is used. It is necessary to perform a switch operation for rotating in the horizontal direction and a switch operation for rotating the working unit, and there is a problem that the operability is poor.

  The present invention has been proposed in order to cope with such a problem, and it is possible to prevent an increase in the size of the coater and suppress an increase in cost, and the equipment is provided even if the pretreatment unit is moved to the parallel link member side. An object of the present invention is to provide a wrinkle coater that can be easily operated by a switch when moving a working unit from an arbitrary position to a normal working position.

  In order to achieve the above-mentioned object, the plastering machine according to the present invention includes a mounting portion to be mounted on the traveling machine body, a working unit for working a position offset laterally with respect to the traveling position of the traveling machine body, and a parallel link mechanism. A coupling mechanism unit configured to connect the working unit and the mounting unit and move the offset of the working unit; an offset actuator (for example, the offset cylinder 50 in the embodiment) that swings and moves the coupling mechanism unit; and the coupling mechanism unit A direction actuator (for example, the direction cylinder 31 in the embodiment) that is connected to a rotation shaft (for example, the transmission shaft 45 in the embodiment) that is rotatably provided on the moving end side and adjusts the working direction of the working unit. The offset angle detecting means for detecting the offset angle of the coupling mechanism part with respect to the mounting part (for example, the offset angle sensor in the embodiment) 2), a rotation angle detecting means (for example, a rotation angle sensor 33 in the embodiment) for detecting the rotation angle of the working part with respect to the moving end side of the coupling mechanism part, an offset angle detecting means and a rotation angle detecting means. An operation control unit capable of adjusting the position and orientation of the working unit by calculating the relative position of the coupling mechanism unit and the working unit based on the detection values detected from the control unit and controlling the operation of the offset actuator and the direction actuator. (For example, the controller 60 in the embodiment) is provided.

  According to this invention, the operation of the offset actuator and the direction actuator is performed according to the relative position of the connection mechanism portion and the working portion calculated based on the detection values detected from the offset angle detection means and the rotation angle detection means. By controlling the position and orientation of the working unit, it is possible to adjust the position of the working unit. Therefore, it is possible to control the operation of the offset actuator and the direction actuator so that the working unit does not come into contact with the mounting unit.

  The operation control unit of the present invention calculates a relative position between the connection mechanism unit and the working unit based on each detection value detected from the offset angle detecting unit and the rotation angle detecting unit, and the working unit is used as the mounting unit. The operation of the offset actuator and the direction actuator is controlled so as not to contact the provided equipment (for example, the case 16 in the embodiment).

  According to the present invention, based on the relative position of the working unit with respect to the coupling mechanism unit calculated from the detection values of the offset angle detecting unit and the rotation angle detecting unit, the offset actuator and the working unit are prevented from contacting the equipment. By controlling the operation of the directional actuator, it is possible to reliably prevent the working unit from contacting the equipment. For this reason, it is not necessary to provide a connecting mechanism having a length that prevents the working unit from contacting the equipment even when the working unit approaches the equipment, and the size of the coater itself can be prevented. , Cost increase can be suppressed.

  The present invention also includes an operation switch (for example, the normal position return switch 63c in the embodiment) that is operated when the working unit is moved to a normal working position where the working unit can work along the traveling of the traveling machine body. The control unit controls the operation of the offset actuator and the direction actuator so that the working unit moves to the normal working position when the operation switch is turned on.

  According to this invention, when the operation switch is turned ON, the operation control unit controls the operation of the offset actuator and the direction actuator so that the operation unit moves to the normal operation position, so that the operation unit can be moved to an arbitrary position. Even in this case, the working unit can be moved to the normal working position simply by turning on the operation switch.

  According to the plastering machine according to the present invention, the offset angle of the coupling mechanism part and the rotation angle of the working part are detected, and the working part comes into contact with the equipment provided in the mounting part based on these detected values. By controlling the operation of the offset actuator and the direction actuator so that there is no problem, and when the operation switch is turned ON, the operation of the offset actuator and the direction actuator is controlled so that the working unit moves to the normal working position.畦 Prevents an increase in the size of the glazing machine, suppresses cost increases, prevents the pre-processing unit from touching the equipment, and facilitates switch operation when moving the working unit from any position to the normal working position. A coating machine can be provided.

  Hereinafter, the glazing machine according to the present invention will be described with reference to FIGS. For convenience of explanation, the directions shown in FIG. 1 (perspective view) will be described below as the front-rear direction and the left-right direction. As shown in FIGS. 1 and 2 (perspective view), the hull coater 1 includes a mounting unit 10 that is mounted on a three-point link mechanism of a tractor (not shown) that is a traveling machine body, and a work unit 20 that performs a hulling operation. The connecting mechanism unit 40 that connects the mounting unit 10 and the working unit 20 is provided as a basic configuration.

  The mounting portion 10 includes a lower link connecting portion 11 and a top link connecting portion 12 and a support member 13 to which the connecting mechanism portion 40 is mounted. Further, an input shaft 15 connected to the PTO shaft of the tractor via a transmission joint such as a universal joint is provided, and transmission for transmitting the power transmitted to the input shaft 15 to the transmission mechanism of the coupling mechanism portion 40 is provided. A mechanism is provided in the support member 13.

  The connecting mechanism portion 40 is supported at the front end side by the support member 13 of the mounting portion 10, and the working portion 20 is attached to the rear end side so that the working portion 20 is operated at an offset position on the side of the traveling machine body shown in the figure. A link member 41 having a front end pivotally supported on the mounting portion side and a rear end pivotally supported on the working portion side, and a transmission case 43 having a winding transmission means for transmitting power to the working portion side. ing.

  The transmission case 43 has transmission shafts 44 and 45 installed vertically, the transmission case 43 is pivotally supported around the transmission shaft 44, and the working unit 20 is pivotally supported around the transmission shaft 45. Has been. The transmission case 43 and the link member 41 are arranged in parallel, and a parallel link mechanism is formed with the support member 13 so that the direction of the working unit 20 does not change with respect to the swinging of the coupling mechanism unit 40. .

  The working unit 20 cuts off a part of the old paddle and performs a pile work, and the soil piled forward by the preprocessing unit 21 is applied on the cut old paddle to arrange a new paddle. These are mounted on the support case 29, and have a transmission mechanism that distributes the power transmitted to the transmission shaft 44 to the pretreatment unit 21 and the adjustment unit 25.

  Here, the pretreatment unit 21 is a rotary tillage type pretreatment mechanism in which a rotary claw is attached to a drive shaft, and a heaven field treatment mechanism 22 for scraping off the heaven field (upper surface) of the old ridge is added. In addition, you may remove the heaven field processing mechanism 22 as needed. The trimming unit 25 may employ a trimming drum including a cylindrical drum 25a that molds the upper surface of the rod and a conical umbrella-shaped drum 25b that molds the side surface of the rod.

  The linkage mechanism 40 of the coater 1 configured as described above is equipped with an offset cylinder 50 for adjusting the working position of the working unit 20, and the working unit 20 adjusts the working direction of the working unit 20. A directional cylinder 31 is provided.

  Further, an offset angle sensor 52 that detects an offset angle of the coupling mechanism 40 is attached to the front end of the link member 41 of the coupling mechanism 40. The offset angle sensor 52 detects the angle of the link member 41 relative to the support member 13 and can use, for example, a potentiometer. A rotation angle sensor 33 is provided outside the case 46 that covers the transmission shaft 45 as means for detecting the working direction of the working unit 20. The rotation angle sensor 33 detects a change in the direction of the working unit 20 relative to the moving end side of the coupling mechanism unit 40, and for example, a potentiometer can be used.

  Then, the controller 60 that controls the operation of the coater 1 according to the embodiment of the present invention, as shown in FIG. 3 (block diagram) and FIG. 4 (plan view), Based on the detection signal from the dynamic angle sensor 33 and the ON signal from the operation switch 63 provided in the switch body 62, the supply and discharge of the hydraulic fluid of the offset control valve 65 and the direction control valve 66 is controlled, and the offset cylinder 50 And the direction cylinder 31 is expanded and contracted.

  The operation switch 63 includes a position adjustment switch 63a that is operated when adjusting the position of the working unit 20 by swinging the coupling mechanism unit 40 in the left-right direction, and a direction operated when adjusting the orientation of the working unit 20. An adjustment switch 63b and a normal position return switch 63c operated when moving the working unit 20 to the normal working position Pt where the working unit 20 can work along the traveling of the traveling machine body are provided.

  When the position adjustment switch 63a or the direction adjustment switch 63b is turned on, the controller 60 calculates the position of the preprocessing unit 21 based on detection signals from the offset angle sensor 52 and the rotation angle sensor 33, and the mounting unit 10 The pre-processing unit 21 does not move within a preset position range relating to equipment 16 such as a case 16 that accommodates the input shaft 15 attached to the support member 13 that is a part of the support member 13 and piping arranged around the case. As described above (for example, the pre-processing unit 21 moves outside the position range described above), the supply / discharge control of the offset control valve 65 and the direction control valve 66 for controlling the expansion and contraction of the offset cylinder 50 and the direction cylinder 31 is performed. Do. In addition, the expansion / contraction control of the offset cylinder 50 and the direction cylinder 31 is performed by setting a safety region in which the preprocessing unit 21 may not come into contact with the equipment in advance, and the preprocessing unit 21 does not exceed this safety region. Further, the expansion and contraction of the direction cylinder 31 may be controlled. Further, an allowable rotation angle range in which the preprocessing unit 21 does not contact the equipment is set in advance according to the offset angle of the connection mechanism unit 40, or the preprocessing unit 21 is set as the equipment according to the rotation angle of the working unit 20. An allowable offset angle range that does not contact may be set in advance, and the expansion and contraction of the offset cylinder 50 and the direction cylinder 31 may be controlled. Furthermore, the expansion and contraction movement of the offset cylinder 50 and the direction cylinder 31 that are driven when the pretreatment unit 21 is about to contact the equipment may be restricted.

  As described above, the controller 60 controls the operation of the offset cylinder 50 and the direction cylinder 31 so that the working unit 20 does not come into contact with the equipment. For example, the working unit 20 is shown in FIG. 4 (plan view). When the position adjustment switch 63a is turned on so as to be offset to the left from the normal working position Pt, as shown in FIG. 5 (plan view) and FIG. 6 (front view), the coupling mechanism 40 is moved. While swinging to the left, the working unit 20 is offset to the left. At this time, there is a possibility that the heaven processing mechanism 22 of the preprocessing unit 21 may come in contact with equipment such as the case 16 that houses the input shaft 15 positioned below the mounting unit 10 and the support member 13. In such a case, the controller 60 described above controls the operation of the offset cylinder 50 so that the working unit 20 does not approach the equipment. For this reason, the situation where the heaven processing mechanism 22 contacts the mounting portion 10 and the equipment can be prevented. For this reason, when the working unit 20 approaches the mounting unit 10 side, the wrinkle coater 1 is used as an equipment such as a case 16 that accommodates the input shaft 15 positioned below the mounting unit 10 and the support member 13. There is no need to provide a coupling mechanism having such a length that it does not come into contact, and it is possible to prevent an increase in the size of the coater itself and to suppress an increase in cost.

  In the present embodiment, an example is shown in which the heaven processing mechanism 22 contacts the mounting unit 10 and the equipment, but a pre-processing unit to which the heaven processing mechanism 22 is not added contacts the mounting part 10 and the equipment. The same applies when there is a risk of this.

  3 and 4, when the normal position return switch 63c is turned on, the controller 60 pre-processes the working unit 20 based on detection signals from the offset angle sensor 52 and the rotation angle sensor 33. The position of the part 21 is calculated, and the supply and discharge of the offset control valve 65 and the direction control valve 66 are controlled so that the working part 20 moves from the calculated position to the normal work position Pt, and the expansion and contraction of the offset cylinder 50 and the direction cylinder 31 is controlled. Is configured to control.

  For this reason, even if the working unit 20 is at an arbitrary position, the working unit 20 can be moved to the normal working position Pt only by turning on the normal position return switch 63c, and the returning operation of the working unit 20 is easy. Can be.

The rear side perspective view of the plastering machine concerning one embodiment of the present invention is shown. 1 shows a front perspective view of a coater according to an embodiment of the present invention. FIG. The block diagram including the controller mounted in this glazing machine is shown. The top view of the surface coating machine which the working part moved to the normal work position is shown. The top view of the glazing machine for demonstrating the action | operation regulation of the offset cylinder and direction cylinder by a controller is shown. The front view of the coating machine for demonstrating the action | operation regulation of the offset cylinder and direction cylinder by a controller is shown.

Explanation of symbols

1 Spider coater 16 Case (equipment)
20 Working part 31 Direction cylinder (Direction actuator)
33 Rotation angle sensor (Rotation angle detection means)
40 Linking mechanism 45 Transmission shaft (rotating shaft)
50 Offset cylinder (offset actuator)
52 Offset angle sensor (offset angle detection means)
60 controller (operation control unit)
63 Normal position return switch (operation switch)
Pt Normal work position

Claims (3)

A mounting unit mounted on the traveling machine body; a working unit that operates a position offset laterally with respect to a traveling position of the traveling machine body; and a parallel link mechanism configured to connect the working unit and the mounting part. The work unit is connected to a coupling mechanism unit capable of offset movement of the working unit, an offset actuator that swings and moves the coupling mechanism unit, and a pivot shaft that is rotatably provided on the moving end side of the coupling mechanism unit. In a coater equipped with a direction actuator that adjusts the working direction of the part,
An offset angle detecting means for detecting an offset angle of the coupling mechanism portion with respect to the mounting portion;
A rotation angle detecting means for detecting a rotation angle of the working unit with respect to a moving end side of the coupling mechanism unit;
Based on the detection values detected from the offset angle detection means and the rotation angle detection means, the relative positions of the coupling mechanism portion and the working portion are calculated to control the operation of the offset actuator and the direction actuator. An operation control unit capable of adjusting the position and orientation of the working unit is provided.   The operation control unit calculates a relative position between the connection mechanism unit and the working unit based on each detection value detected from the offset angle detection unit and the rotation angle detection unit, and the working unit 2. The wrinkle coater according to claim 1, wherein the operation of the offset actuator and the direction actuator is controlled so as not to contact the equipment provided in the mounting portion. An operation switch operated when the working unit is moved to a normal working position where the working unit can work along the traveling of the traveling machine body;
The operation control unit controls the operation of the offset actuator and the direction actuator so that the working unit moves to the normal working position when the operation switch is turned on. 2. A coater according to 2.

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