WO2022176647A1 - 回転駆動システム及びそのシステムを備えた籾摺機 - Google Patents
回転駆動システム及びそのシステムを備えた籾摺機 Download PDFInfo
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- WO2022176647A1 WO2022176647A1 PCT/JP2022/004463 JP2022004463W WO2022176647A1 WO 2022176647 A1 WO2022176647 A1 WO 2022176647A1 JP 2022004463 W JP2022004463 W JP 2022004463W WO 2022176647 A1 WO2022176647 A1 WO 2022176647A1
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- Prior art keywords
- pulley
- flat belt
- drive system
- driven
- driven pulley
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- 235000007164 Oryza sativa Nutrition 0.000 title claims description 21
- 235000009566 rice Nutrition 0.000 title claims description 21
- 240000007594 Oryza sativa Species 0.000 title 1
- 230000033001 locomotion Effects 0.000 claims abstract description 21
- 241000209094 Oryza Species 0.000 claims description 20
- 230000002093 peripheral effect Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 10
- 235000013339 cereals Nutrition 0.000 claims description 6
- 239000008187 granular material Substances 0.000 claims description 5
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 6
- 239000010903 husk Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
- B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
- F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
Definitions
- the present invention relates to, for example, a rotation drive system that rotates a rotating roll and a rice huller equipped with the system.
- a rice huller disclosed in Patent Document 1 has a rotary drive system including a pair of husking rolls that extend parallel to the rotation axis and are adjacent in a direction perpendicular to the rotation axis.
- the rotary drive system includes a drive motor that rotates a drive pulley, a driven pulley that rotates integrally with each stripping roll, and a tension pulley that is disposed between the drive pulley and both driven pulleys.
- An endless belt such as a hexagonal belt or a V-belt is wound around the drive pulley, both driven pulleys and the tension pulley.
- the hulling rolls are rotated in opposite directions by the circularly moving endless belt. is supplied and passed while being pressed by the outer peripheral surfaces of the both hulling rolls, the rice husk is sheared and broken and removed from the rice.
- both side surfaces of the endless belt are mainly in contact with the inner side surface of each pulley when it moves around, and simply changing the width dimension to a larger one will result in an endless belt. It is characterized in that it is difficult to improve the power transmission capacity between the shaped belt and each pulley. Therefore, for example, for the purpose of improving the hulling capacity of a huller such as that disclosed in Patent Document 1, the output of the drive motor in the rotary drive system is increased and the power transmission capacity between the endless belt and each pulley is improved. In order to increase the rotational force of both hulling rolls, it is necessary to increase the dimension of each pulley in the direction of the rotation axis and to increase the number of endless belts wound around each pulley.
- the inventors of the present invention changed the endless belts to flat belts in order to avoid the possibility of malfunction of the support shaft and the increase in the size of the apparatus due to an increase in the number of endless belts.
- the power transmission capacity between one endless belt and each pulley can be increased, and the dimension of each pulley in the direction of the rotation axis can be shortened.
- the endless belt is a flat belt
- the flat belt and the outer peripheral surface of each pulley become easy to slide, and the flat belt moves around at a position offset in the axial direction of each pulley.
- the flat belt moves around at a position offset in the axial direction of each pulley.
- the inventors of the present invention came up with a suitable rotary drive system by providing a pulley with an appropriate structure at an appropriate location.
- the present invention has been made in view of the above points, and its object is to have a high power transmission capability even when the output of the drive motor is increased, to perform stable rotary drive operation, and to use it repeatedly. To provide a rotary drive system in which trouble is unlikely to occur even if the system is changed.
- the present invention is characterized by using a flat belt. Further, the present invention is characterized in that a swingable meandering control pulley is disposed on the downstream side of the drive belt in the revolving direction of the flat belt.
- a driving pulley that is rotationally driven by a driving motor, a driven pulley that rotates integrally with a rotating roll, and a roller that is wound around the driving pulley and the driven pulley and that is circulated by the rotational movement of the driving pulley. and an endless flat belt that rotates the rotating roll via the driven pulley, and a tension pulley that can adjust the stretched state of the flat belt.
- a flexible meandering control pulley guides the flat belt.
- a second invention is characterized in that, in the first invention, the meandering control pulley is located closer to the adjacent pulley than the central position between the adjacent pulley and the drive pulley.
- a third invention is characterized in that, in the first and second inventions, the adjacent pulley is the tension pulley.
- the rotating rolls extend in parallel with their rotation axes and are provided in a pair at adjacent positions, and the flat belt moves in a circular motion.
- each of the rotating rolls is sequentially wound around each driven pulley provided to rotate integrally with each of the rotating rolls so that each of the rotating rolls rotates in opposite directions. It is characterized in that it is configured such that the granular material supplied to the gap is passed through while being pressed by the outer peripheral surface.
- each pair of the drive motor, the drive pulley, the flat belt, the tension pulley, and the meandering control pulley is provided, and the driven pulleys include a first driven pulley and a second driven pulley.
- the one first driven pulley and the one second driven pulley are provided to rotate integrally with the one rotating roll, and the other first driven pulley and the other one of the driven pulleys are provided.
- the second driven pulley is provided to rotate integrally with the other rotating roll, and the one flat belt includes the one driving pulley, the one meandering control pulley, the one tension pulley, and the one first driven pulley.
- the other flat belt is wound around the pulley and the other second driven pulley to form a first drive system
- the other flat belt includes the other drive pulley, the other meandering control pulley, the other tension pulley
- the A second driven pulley is wound around the other first driven pulley and the one second driven pulley to form a second drive system.
- a clutch mechanism is provided for switching between a state in which the other flat belt is separated from the driven pulley and a drive system for rotating the two rotating rolls.
- a belt running detection sensor capable of acquiring running data of each flat belt; and a control section connected to each of the drive motors, the clutch mechanism, and the belt running detection sensor. and the control unit compares a storage unit in which a threshold value for determining that the running of the flat belt is in a meandering state is stored in advance with the running data obtained by the belt running detection sensor and the threshold value.
- the clutch mechanism is operated to switch to a different drive system, It is characterized in that both the rotating rolls are rotationally driven by a different drive system until the determination unit determines that the flat belt is not meandering in the original drive system.
- a rice huller is provided with the rotating system according to any one of the fourth to sixth aspects, wherein the granular material is rice, and the gap between the two rotating rolls in the rotating state is the outer circumference It is characterized in that the rice husk is removed when passing through while being pressed by the surface.
- the flat belt since the flat belt is used as the endless belt that rotates the rotary roll, the flat belt can be used without increasing the number of flat belts when increasing the output of the drive motor to increase the rotational force of the rotary roll.
- the width of the belt By increasing the width of the belt, it is possible to improve the power transmission capability between the endless belt and each pulley. Therefore, even if each pulley is supported by a cantilevered support shaft, it is possible to reduce the dimension of each pulley in the direction of the rotation axis, thereby reducing the bending stress applied to the support shaft. It is possible to reduce the size of the entire system while making it difficult for troubles to occur even after repeated use.
- the rotary drive system when the rotary drive system is operated, if the flat belt deviates from the outer peripheral surface of each pulley in the rotation axis direction of each pulley, the direction in which the flat belt deviates from the flat belt guided by the meandering control pulley. While applying resistance to the opposite side, it will swing according to the movement of the flat belt. Therefore, as the flat belt repeats the circular motion, the displacement of the flat belt in the direction of the rotation axis of each pulley gradually decreases, and the flat belt returns to a position where it can perform the stable circular motion. It can stabilize the rotary drive operation of the system.
- the resistance applied to the flat belt by the meandering control pulley is applied to the flat belt sliding on the outer peripheral surface of the adjacent pulley. become a big influence. Therefore, even if the flat belt meanders, the revolving motion of the flat belt can easily return to a stable state (meandering can be easily stopped), and the rotational drive operation of the system can be further stabilized. .
- the meandering control pulley is positioned closer to the tension pulley, when the stretched state of the flat belt is adjusted by the tension pulley, the meandering control pulley is positioned relative to the flat belt sliding on the outer peripheral surface of the tension pulley. comes to have a great impact. Therefore, even if the tensioned state of the flat belt is adjusted by the tension pulley, meandering of the flat belt caused by the adjustment can be avoided as much as possible.
- the driving force of the drive motor is applied to each of the drive motors when passing the granular material while being pressed by the outer peripheral surfaces of the two rotating rolls. It can be transmitted to the rotating roll without waste.
- the pair of rotating rolls can be rotationally driven while switching between the two drive systems by the clutch mechanism. It is possible to change the peripheral speed of each rotating roll when switching the drive system.
- the flat belt since the flat belt does not continue to circulate in a meandering state, it not only stabilizes the rotary drive operation of the system, but also prevents problems caused by the flat belt continuing meandering for a long time. can be done.
- the rice husk can be efficiently sheared and broken, and the rice huller can have a high hulling capacity.
- FIG. 2 is a schematic view taken along line II in FIG. 1;
- FIG. 3 is a view equivalent to FIG. 2 in which the drive system is switched;
- FIG. 1 shows a grain huller 10 incorporating a rotary drive system 1 according to an embodiment of the present invention.
- the grain huller 10 is provided with a machine frame 10a having a substantially rectangular plate shape having a thickness and having an inclined surface 10b extending obliquely downward on one side of the upper part thereof. (not shown) is formed inside the machine frame 10a.
- a first hulling roll R1 (rotating roll) having a rotation axis C1 extending in the thickness direction of the machine frame 10a is placed at a position substantially above the center of the machine frame 10a. While being rotatably supported by 1 support shaft r1, a second hulling roll R2 (a second hulling roll R2 ( rotating roll) is rotatably supported by the second support shaft r2.
- the first hulling roll R1 and the second hulling roll R2 have the same diameter and are positioned adjacent to each other.
- a first rotation sensor s1 and a second rotation sensor s1 capable of detecting the rotation speeds of the first hulling roll R1 and the second hulling roll R2, respectively
- a sensor s2 is provided.
- a roll pressure adjusting cylinder S1 is provided to adjust the contact pressure.
- the first hulling roll R1 and the second hulling roll R2 are each provided with a first driven pulley 2 and a second driven pulley 3 having a smaller diameter than the first driven pulley 2 so as to rotate integrally.
- a second driven pulley 3 and a first driven pulley 2 are attached to the first hulling roll R1 in this order from the tip side of the first support shaft r1, while the second hulling roll R2 is attached to the second support shaft r2.
- a first driven pulley 2 and a second driven pulley 3 are attached in order from the tip side.
- first driven pulley 2 and the second driven pulley 3 attached to the first hulling roll R1 are referred to as the first driven pulley 2A and the second driven pulley 3A.
- the attached first driven pulley 2 and second driven pulley 3 will be called a first driven pulley 2B and a second driven pulley 3B.
- a first drive motor 4 is disposed whose rotating shaft 4a extends in the same direction as the rotation axis C1. 1 drive pulley 4b is attached to rotate integrally.
- a second driving motor 5 having a rotating shaft 5a extending in the same direction as the rotation axis C2 is disposed obliquely above the second hulling roll R2 on the side opposite to the first hulling roll R2.
- a second driving pulley 5b that is rotationally driven by a second driving motor 5 is attached to the rotating shaft 5a so as to rotate integrally, and the second driving pulley 5b has the same diameter as the first driving pulley 4b.
- a first tension changing mechanism 6 provided with a first tension pulley 6a (adjacent pulley) whose rotation axis extends in the same direction as the rotation axis C1 on the opposite side of the first hulling roll R1 to the second hulling roll R2. are arranged.
- the first tension changing mechanism 6 includes a first rotation frame 6b having a first tension pulley 6a pivotally supported at its distal end and a base end rotatably supported by the machine frame 10a.
- a first air cylinder 6c is arranged above the moving frame 6b to move the first rotating frame 6b up and down by extending and contracting the rod portion 6d.
- a second tension changing mechanism 7 having a second tension pulley 7a (adjacent pulley) whose rotating shaft extends in the same direction as the rotation axis C2 is disposed.
- the pulley 7a has the same diameter as the first tension pulley 6a.
- the second tension changing mechanism 7 includes a second rotating frame 7b having a distal end that supports a second tension pulley 7a and a base end that is rotatably supported by the machine frame 10a.
- a second air cylinder 7c is arranged between the frame 7b and the second drive motor 5 to move the second rotating frame 7b up and down by the expansion and contraction of the rod portion 7d.
- a first meandering control pulley 8 whose rotating shaft extends in the same direction as the rotation axis C1 is disposed. It is swingable about a swing axis C3 extending obliquely upward from the first meandering control pulley 8 on the side opposite to the first air cylinder 6c.
- a first vibration sensor 8a (belt running detection sensor) capable of acquiring vibration data of the first meandering control pulley 8 (running data of a first flat belt B1 to be described later) is attached to the first meandering control pulley 8.
- a second meandering control pulley 9 is disposed whose rotation axis extends in the same direction as the rotation axis C2. , the diameter of which is the same as that of the first meandering control pulley 8 .
- the second meandering control pulley 9 can swing about a swing axis C4 extending obliquely downward from the second meandering control pulley 9 on the side opposite to the second air cylinder 7c.
- a second vibration sensor 9a (belt running detection sensor) capable of acquiring vibration data of the second meandering control pulley 9 (running data of a second flat belt B2 to be described later) is attached to the second meandering control pulley 9.
- a first endless flat belt B1 is wound around the first drive pulley 4b, the first meandering control pulley 8, the first tension pulley 6a, the second driven pulley 3B and the first driven pulley 2A to provide a first drive system.
- K1 is formed.
- the first flat belt B1 is wound around the second driven pulley 3B and the first driven pulley 2A in order in an S-shape when viewed from the distal end side of the first support shaft r1 and the second support shaft r2, and is the first drive belt.
- the pulley 4b rotates to rotate
- the first hulling roll R1 and the second hulling roll R2 rotate in opposite directions via the second driven pulley 3B and the first driven pulley 2A.
- the first flat belt B1 is rotated counterclockwise when viewed from the tip side of the first support shaft r1 and the second support shaft r2.
- Unhulled rice fed from the input port 10c and supplied to the gap between the rotating first hulling roll R1 and the second hulling roll R2 is fed to the outer peripheral surfaces of the first hulling roll R1 and the second hulling roll R2.
- the rice husk can be removed by passing it while pressing it.
- the first tension pulley 6a can adjust the stretched state of the first flat belt B1 by vertically moving the first rotating frame 6b.
- the first meandering control pulley 8 is positioned next to the first drive pulley 4b on the downstream side of the first flat belt B1 in the circular movement direction of the first tension pulley 6a, the second driven pulley 3B, and the first driven pulley 2A. Positioned closer to the first tension pulley 6a than the central position P1 between the first tension pulley 6a and the first driving pulley 4b, the rocking swing extending in the thickness direction of the region in contact with the first flat belt B1. It guides the first flat belt B1 while swinging about the axis C3.
- an endless second flat belt B2 is wound around the second drive pulley 5b, the second meandering control pulley 9, the second tension pulley 7a, the second driven pulley 3A and the first driven pulley 2B to form a second flat belt B2.
- a drive system K2 is formed.
- the second flat belt B2 is wound around the second driven pulley 3A and the first driven pulley 2B in order in an S-shape when viewed from the tip side of the first support shaft r1 and the second support shaft r2, and is used for the second drive.
- the pulley 5b rotates to rotate
- the first hulling roll R1 and the second hulling roll R2 rotate in opposite directions via the second driven pulley 3A and the first driven pulley 2B
- the outer peripheral surface presses the paddy that is fed from the feeding port 10c and supplied to the gap between the first hulling roll R1 and the second hulling roll R2 in a rotating state.
- the rice husk can be removed by letting it pass through.
- the second flat belt B2 rotates clockwise when viewed from the tip end sides of the first support shaft r1 and the second support shaft r2.
- the second tension pulley 7a can adjust the stretched state of the second flat belt B2 by vertically moving the second rotating frame 7b.
- the second meandering control pulley 9 is positioned next to the second drive pulley 5b on the downstream side of the second flat belt B2 in the circular movement direction among the second tension pulley 7a, the second driven pulley 3A and the first driven pulley 2B. Swinging that extends in the thickness direction of the area that is positioned closer to the second tension pulley 7a than the center position P2 between the second tension pulley 7a and the second drive pulley 5b and contacts the second flat belt B2. It guides the second flat belt B2 while swinging around the axis C4.
- the first drive system K1 and the second drive system K2 are provided with a clutch mechanism 20 for switching the drive system for rotating the first hulling roll R1 and the second hulling roll R2.
- the clutch mechanism 20 includes a first clutch unit 11 arranged between the first hulling roll R1 and the first driven pulley 2A, and arranged between the second hulling roll R2 and the second driven pulley 3B. and a second clutch unit 12 provided.
- the first clutch unit 11 is rotatably provided around the rotation axis C1, and is rotatable around the rotation axis extending in the same direction as the rotation axis C1 at a radially outer position of the first hulling roll R1.
- a pair of first clutch pulleys 11a are provided at predetermined intervals in the circumferential direction around the rotation axis C1.
- the second clutch unit 12 is rotatably provided around the rotation axis C2, and is located radially outside the second hulling roll R2 and extends in the same direction as the rotation axis C2.
- a pair of rotatable second clutch pulleys 12a are provided at predetermined intervals in the circumferential direction around the rotation axis C2.
- a first sprocket 13 whose center coincides with the rotation axis C1 is attached to the first clutch unit 11, and a second sprocket 14 whose center coincides with the rotation axis C2 is attached to the second clutch unit 12.
- a relay double sprocket 15 whose axis of rotation extends in the same direction as the axis of rotation C1.
- a third sprocket 16 is provided whose axis coincides with the rotational axis of the second meandering control pulley 9 .
- a third air cylinder 17 is arranged below the second tension pulley 7a to rotate the third sprocket 16 forward and backward by the expansion and contraction of the rod portion 17a.
- a first chain 18 is wound around the first sprocket 13 and one of the relay double sprockets 15 , and a second chain is wound around the second sprocket 14 , the other sprocket of the relay double sprocket 15 and the third sprocket 16 . 19 is wrapped around.
- FIG. 3 shows a state in which the second flat belt B2 is separated from the driven pulley 2B and the first clutch pulleys 11a of the first clutch unit 11 bring the first flat belt B1 into contact with the first driven pulley 2A.
- each first clutch pulley 11a of the first clutch unit 11 separates the first flat belt B1 from the first driven pulley 2A
- each second clutch pulley 12a of the second clutch unit 12 separates the first driven pulley 2B. and the state in which the second flat belt B2 is brought into contact with the second flat belt B2.
- a display monitor 40 capable of displaying the state of the rice huller 10 is attached to the machine frame 10a, as shown in FIG.
- the first rotation sensor s1, the second rotation sensor s2, the first drive motor 4, the second drive motor 5, the first vibration sensor 8a, the second vibration sensor 9a, the clutch mechanism 20, and the display monitor 40 include the control unit 30. It is connected.
- the control unit 30 outputs an operation signal to the first drive motor 4 to rotationally drive the first drive pulley 4b, thereby driving the first hulling roll R1 and the second hulling roll R2 in the first drive system K1. It is designed to rotate.
- control unit 30 outputs an operation signal to the second drive motor 5 to rotationally drive the second drive pulley 5b, so that the first hulling roll R1 and the second hulling roll R2 are driven in the second drive system K2. is driven to rotate.
- the control unit 30 controls the first flat belt B1 or the second flat belt B2 from meandering due to sudden driving. Control is performed so that the first drive motor 4 or the second drive motor 5 reaches the target rotation speed in a longer time than the normal set time until reaching the target rotation speed. For example, the control unit 30 reaches the target rotation speed in 1 to 5 seconds, preferably about 2 seconds, by an inverter or the like.
- control unit 30 when an error occurs in the huller 10, the control unit 30 outputs a display signal to the display monitor 40 to display an error message to the user.
- control unit 30 includes a storage unit 30a prestored with a threshold value T1 for determining that the running of the first flat belt B1 or the second flat belt B2 is meandering, and the first vibration sensor 8a or the second vibration sensor.
- a judgment unit 30b judges whether or not the first flat belt B1 or the second flat belt B2 is meandering by comparing the vibration data obtained in 9a with the threshold value T1.
- the storage unit 30a stores a threshold value T2 for determining that the first flat belt B1 or the second flat belt B2 is slipping with the first driven pulley 2 or the second driven pulley 3. stored in advance.
- the determination unit 30b compares the rotation speed data obtained by the first rotation sensor s1 or the second rotation sensor s2 with the threshold value T2 to determine whether the first flat belt B1 or the second flat belt B2 has slipped. It is determined whether or not
- the control unit 30 When the determination unit 30b determines that the first flat belt B1 or the second flat belt B2 is meandering, the control unit 30 operates the clutch mechanism 20 to switch to a different drive system, and the determination unit 30b The first hulling roll R1 and the second hulling roll R2 are rotationally driven by different drive systems until it is determined that the first flat belt B1 or the second flat belt B2 is not meandering in the original drive system.
- control unit 30 when meandering travel of the first flat belt B1 occurs while the grain huller 10 is being driven by the first drive system K1 will be described in detail.
- step S1 the control unit 30 starts acquiring travel data (vibration data) of the circularly moving first flat belt B1 from the first vibration sensor 8a, and proceeds to step S2.
- step S2 the determination unit 30b compares the vibration data obtained from the first vibration sensor 8a with the threshold value T1 stored in the storage unit 30a to determine whether or not the first flat belt B1 is meandering. judge.
- step S2 determines that the first flat belt B1 is not meandering
- the huller 10 continues to operate in the first drive system K1.
- step S2 determines that the first flat belt B1 is meandering
- the process proceeds to step S3, in which a stop signal is output to the first drive motor 4 and the clutch
- the operation signal is output to the second drive motor 5. and proceed to step S4.
- step S5 the control unit 30 starts acquiring travel data (vibration data) of the circularly moving first flat belt B1 from the first vibration sensor 8a, and proceeds to step S6.
- step S6 the determination unit 30b compares the vibration data obtained from the first vibration sensor 8a with the threshold value T1 stored in the storage unit 30a to determine whether or not the first flat belt B1 is meandering. judge.
- step S6 determines that the first flat belt B1 is not in the meandering state
- the process proceeds to step S11 to output a stop signal to the second drive motor 5 and to the clutch mechanism 20.
- step S11 After outputting an operation signal and switching the rotation drive of the first hulling roll R1 and the second hulling roll R2 to the rotation drive by the first drive system K1, an operation signal is output to the first drive motor 4 to step S1.
- step S6 determines that the first flat belt B1 is meandering
- the process proceeds to step S7, and the control unit 30 sends a stop signal to the second drive motor 5.
- step S8 After outputting to temporarily stop the second driving motor 5 and then outputting an operation signal to the second driving motor 5 to restart it, the process proceeds to step S8.
- step S8 the stop count N of the second drive motor 5 is incremented by one, and then the process proceeds to step S9.
- step S9 the determination unit 30b determines whether or not the stop number count N has reached a predetermined number X times.
- step S9 determines that the stop count N has not reached the number of times X
- the process returns to step S5 to continue observing the meandering state of the first flat belt B1.
- step S9 determines that the stop count N has reached the number of times X
- the process proceeds to step S10, and the control unit 30 outputs a display signal to the display monitor 40.
- An error message is displayed, and a stop signal is output to the second drive motor 5 to stop the rice huller 10.
- control unit 30 when the grain huller 10 is driven by the second drive system K2, the operation of the control unit 30 when meandering travel of the second flat belt B2 occurs is just the opposite of the drive system. Since the operation of the control unit 30 is the same, detailed description thereof will be omitted.
- the first flat belt B1 and the second flat belt B2 are applied to the endless belts for rotating the first hulling roll R1 and the second hulling roll R2.
- the numbers of the first flat belt B1 and the second flat belt B2 are increased.
- the power transmission capacity between the first flat belt B1 and the second flat belt B2 and each pulley can be improved. become.
- each pulley is supported by a cantilevered support shaft, it is possible to reduce the dimension of each pulley in the direction of the rotation axis, thereby reducing the bending stress applied to the support shaft. It is possible to reduce the size of the entire system while making it difficult for troubles to occur even after repeated use.
- the rotation drive system 1 when the rotation drive system 1 is operated, if the first flat belt B1 or the second flat belt B2 shifts in the rotation axis direction of each pulley with respect to the outer peripheral surface of each pulley, the first meandering control pulley 8 or While applying resistance to the first flat belt B1 or the second flat belt B2 guided by the second meandering control pulley 9 in the direction opposite to the deviation direction, the movement of the first flat belt B1 or the second flat belt B2 is controlled. They will oscillate together. Therefore, as the first flat belt B1 or the second flat belt B2 repeats the circular motion, the deviation of the first flat belt B1 or the second flat belt B2 in the direction of the rotation axis of each pulley gradually decreases. Since the first flat belt B1 or the second flat belt B2 returns to a position where it can perform a stable circular movement operation, the rotation driving operation of the rotation driving system 1 can be stabilized.
- the position of the first meandering control pulley 8 or the second meandering control pulley 9 is close to the first tension pulley 6a or the second tension pulley 7a.
- the resistance applied to the first flat belt B1 or the second flat belt B2 by the pulley 8 or the second meandering control pulley 9 slides on the outer peripheral surface of the first tension pulley 6a or the second tension pulley 7a. It comes to have a great influence on the second flat belt B2. Therefore, even if the first flat belt B1 or the second flat belt B2 meanders, the circular movement operation of the first flat belt B1 or the second flat belt B2 can easily return to a stable state (meandering can be easily stopped). ), the rotary drive operation of the rotary drive system 1 can be made more stable.
- the first meandering control pulley 8 and the second meandering control pulley 9 are located at positions closer to the first tension pulley 6a and positions closer to the second tension pulley 7a, respectively. Based on this configuration, when the stretched state of the first flat belt B1 or the second flat belt B2 is adjusted by the first tension pulley 6a or the second tension pulley 7a, the tension of the first tension pulley 6a or the second tension pulley 7a The first meandering control pulley 8 or the second meandering control pulley 9 has a great influence on the first flat belt B1 or the second flat belt B2 that slides on the outer peripheral surface.
- the paddy is moved to the first hulling roll R1.
- the driving force of the first drive motor 4 or the second drive motor 5 is transmitted to the first hulling roll R1 and the second hulling roll R2 without waste.
- first hulling roll R1 and the second hulling roll R2 can be rotationally driven while switching between the first drive system K1 and the second drive system K2 by the clutch mechanism 20, for example, the first driven pulley 2 and the second driven pulley 3 have different diameters, it is possible to change the peripheral speeds of the first hulling roll R1 and the second hulling roll R2 when the drive system is switched.
- control unit 30 determines whether or not the first flat belt B1 or the second flat belt B2 is in a meandering state, and switches the driving system, so that the first flat belt B1 or the second flat belt B2 is in a meandering state. To not only stabilize the rotary drive operation of a rotary drive system 1 by eliminating the continuous circular movement, but also to prevent troubles caused by the first flat belt B1 or the second flat belt B2 continuing meandering for a long time. can be done.
- the rice huller 10 of the embodiment of the present invention has a high hulling ability and can efficiently shear and break the rice husks to remove them.
- the first meandering control pulley 8 is positioned at the downstream side of the first driven pulley 2A, the second driven pulley 3B and the first tension pulley 6a in the direction of circular movement of the first flat belt B1. It is arranged between the first tension pulley 6a, which is an adjacent pulley next to the driving pulley 4b, and the first driving pulley 4b, but the adjacent pulleys are the first driven pulley 2A and the second driven pulley. 3B, meandering can be controlled even if it is arranged between those pulleys and the first drive pulley 4b.
- the second meandering control pulley 9 is positioned at the downstream side of the first driven pulley 2B, the second driven pulley 3A and the second tension pulley 7a in the direction of circular movement of the second flat belt B2. It is arranged between the second tension pulley 7a, which is an adjacent pulley next to the driving pulley 5b, and the second driving pulley 5b, but the adjacent pulleys are the first driven pulley 2B and the second driven pulley. In the case of 3A, meandering can be controlled even if it is arranged between those pulleys and the second drive pulley 5b.
- the first vibration sensor 8a or the second vibration sensor 9a is used to detect the meandering state of the first flat belt B1 or the second flat belt B2. If the meandering state of the B1 or the second flat belt B2 can be detected, it may be detected using other sensors. A meandering state of the belt B2 may be detected.
- first vibration sensor 8a and the second vibration sensor 9a are attached to the first meandering control pulley 8 and the second meandering control pulley 9, but they may be attached to other pulleys to detect vibrations. , the meandering state of the first flat belt B1 or the second flat belt B2 may be detected.
- the first rotation sensor s1 and the second rotation sensor s2 are arranged on the sides of the first hulling roll R1 and the second hulling roll R2, respectively, but the present invention is not limited to this. , so long as the number of revolutions of the first hulling roll R1 and the second hulling roll R2 can be detected, they may be installed at other locations.
- the determination unit 30b detects the first flat belt by comparing the rotation speed data obtained by the first rotation sensor s1 or the second rotation sensor s2 with a preset threshold value T2. It is determined whether or not the B1 or the second flat belt B2 is slipping. By calculating rotation speed difference data, which is the difference, and comparing this rotation speed difference data with a preset threshold value, the determining unit 30b determines whether slip has occurred in the first flat belt B1 or the second flat belt B2. You may make it determine whether it exists.
- the speed of the currently driven drive system is reduced without switching the drive system, and after confirming that meandering has stopped in the decelerated state, , and re-acceleration (hereinafter referred to as "drive system deceleration control").
- drive system deceleration control re-acceleration
- the currently driven drive system may be stopped, the same drive system may be restarted, and after confirming that the meandering has stopped, it may be continuously driven ( hereinafter referred to as "drive system stop control").
- the present invention may appropriately combine the three controls described above. For example, if “drive system deceleration control” is performed and meandering does not stop after a predetermined time has passed, “drive system stop control” is performed, and if meandering does not stop after a predetermined time has passed may implement “drive system switching control”. Furthermore, by applying machine learning or the like, any one of “drive system deceleration control”, “drive system stop control”, and “drive system switching control” may be implemented as necessary. .
- rotation drive system 1 is applied to the rice huller 10, it may be applied to other devices such as a roller mill device.
- the present invention is suitable, for example, for a rotary drive system that drives rotary rolls and a rice huller equipped with the system.
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Abstract
Description
2 第1従動プーリ
3 第2従動プーリ
4 第1駆動モータ
4b 第1駆動プーリ
5 第2駆動モータ
5b 第2駆動プーリ
6a 第1テンションプーリ
7a 第2テンションプーリ
8 第1蛇行制御プーリ
9 第2蛇行制御プーリ
10 籾摺機
20 クラッチ機構
30 制御部
30a 記憶部
30b 判定部
B1 第1平ベルト
B2 第2平ベルト
K1 第1駆動系統
K2 第2駆動系統
R1 第1脱ぷロール(回転ロール)
R2 第2脱ぷロール(回転ロール)
8a 第1振動センサ(ベルト走行検出センサ)
9a 第2振動センサ(ベルト走行検出センサ)
T1 閾値
Claims (7)
- 駆動モータにより回転駆動する駆動プーリと、
回転ロールと一体に回転する従動プーリと、
前記駆動プーリ及び前記従動プーリに巻き掛けられ、前記駆動プーリの回転動作により周回移動して前記従動プーリを介して前記回転ロールを回転させる無端状の平ベルトと、
該平ベルトの張設状態を調整可能なテンションプーリとを備え、
前記従動プーリ及び前記テンションプーリのうち前記平ベルトの周回移動方向下流側において前記駆動プーリの次に隣設された隣設プーリと前記駆動プーリとの間には、前記平ベルトに接する領域の厚み方向に延びる揺動軸心を中心として揺動自在な蛇行制御プーリが前記平ベルトを案内していることを特徴とする回転駆動システム。 - 請求項1に記載の回転駆動システムにおいて、
前記蛇行制御プーリは、前記隣設プーリと前記駆動プーリとの間の中央位置よりも前記隣設プーリ側に位置していることを特徴とする回転駆動システム。 - 請求項1又は2に記載の回転駆動システムにおいて、
前記隣設プーリは、前記テンションプーリであることを特徴とする回転駆動システム。 - 請求項1から3のいずれか1つに記載の回転駆動システムにおいて、
前記回転ロールは、その回転軸心が平行に延び、且つ、隣接する位置に一対設けられ、
前記平ベルトは、周回移動する際、前記各回転ロールが互いに反対方向に回転するように前記各回転ロールに回転一体に設けられた各従動プーリに順に巻き掛けられ、
前記両回転ロールは、回転状態において当該両回転ロールの間隙に供給される粒状体を外周面で押圧しながら通過させるよう構成されていることを特徴とする回転駆動システム。 - 請求項4に記載の回転駆動システムにおいて、
前記駆動モータ、前記駆動プーリ、前記平ベルト、前記テンションプーリ及び前記蛇行制御プーリをそれぞれ一対ずつ備え、
前記従動プーリは、第1従動プーリと第2従動プーリとをそれぞれ一対ずつ備え、
前記一方の第1従動プーリ及び前記一方の第2従動プーリは、前記一方の回転ロールに回転一体に設けられる一方、前記他方の第1従動プーリ及び前記他方の第2従動プーリは、前記他方の回転ロールに回転一体に設けられ、
前記一方の平ベルトは、前記一方の駆動プーリ、前記一方の蛇行制御プーリ、前記一方のテンションプーリ、前記一方の第1従動プーリ及び前記他方の第2従動プーリに巻き掛けられて第1駆動系統を形成する一方、前記他方の平ベルトは、前記他方の駆動プーリ、前記他方の蛇行制御プーリ、前記他方のテンションプーリ、前記他方の第1従動プーリ及び前記一方の第2従動プーリに巻き掛けられて第2駆動系統を形成し、
前記第1及び第2駆動系統には、前記一方の第1従動プーリから前記一方の平ベルトを離間させ、且つ、前記他方の第1従動プーリに前記他方の平ベルトを接触させる状態と、前記一方の第1従動プーリに前記一方の平ベルトを接触させ、且つ、前記他方の第1従動プーリから前記他方の平ベルトを離間させる状態とを切り替えて前記両回転ロールにおける回転駆動の駆動系統を切り替えるクラッチ機構が設けられていることを特徴とする回転駆動システム。 - 請求項5に記載の回転駆動システムにおいて、
前記各平ベルトの走行データを取得可能なベルト走行検出センサと、
前記各駆動モータ、前記クラッチ機構及び前記ベルト走行検出センサに接続された制御部とを備え、
該制御部は、前記平ベルトの走行が蛇行状態と判定するための閾値が予め記憶された記憶部と、前記ベルト走行検出センサにて得られた走行データと前記閾値とを比較して前記平ベルトが蛇行状態であるか否かを判定する判定部とを備え、該判定部により蛇行状態であると判定されると、前記クラッチ機構を作動させて異なる駆動系統へと切り替えるとともに、前記判定部により元の駆動系統において前記平ベルトが蛇行状態でないと判定されるまで異なる駆動系統によって前記両回転ロールを回転駆動させるよう構成されていることを特徴とする回転駆動システム。 - 請求項4から6のいずれか1つの回転駆動システムを備え、
前記粒状体は、籾であり、回転状態の前記両回転ロールの間隙をその外周面で押圧されながら通過する際に籾殻が取り除かれるよう構成されていることを特徴とする籾摺機。
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JP2006312151A (ja) * | 2005-05-09 | 2006-11-16 | Satake Corp | 脱ぷ機における脱ぷロール駆動装置 |
JP2008169973A (ja) * | 2007-01-15 | 2008-07-24 | Bando Chem Ind Ltd | ベルト車及びベルト駆動装置 |
JP2009072765A (ja) * | 2007-08-30 | 2009-04-09 | Satake Corp | 籾摺機における脱ぷロール駆動装置 |
US20150260266A1 (en) * | 2014-03-11 | 2015-09-17 | Industrias Machina Zaccaria S/A | Automated rotation change system oriented to rice husking machines |
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JP2006312151A (ja) * | 2005-05-09 | 2006-11-16 | Satake Corp | 脱ぷ機における脱ぷロール駆動装置 |
JP2008169973A (ja) * | 2007-01-15 | 2008-07-24 | Bando Chem Ind Ltd | ベルト車及びベルト駆動装置 |
JP2009072765A (ja) * | 2007-08-30 | 2009-04-09 | Satake Corp | 籾摺機における脱ぷロール駆動装置 |
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