WO2012017549A1 - エレベータ用調速機 - Google Patents
エレベータ用調速機 Download PDFInfo
- Publication number
- WO2012017549A1 WO2012017549A1 PCT/JP2010/063384 JP2010063384W WO2012017549A1 WO 2012017549 A1 WO2012017549 A1 WO 2012017549A1 JP 2010063384 W JP2010063384 W JP 2010063384W WO 2012017549 A1 WO2012017549 A1 WO 2012017549A1
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- WIPO (PCT)
- Prior art keywords
- governor
- governor sheave
- rotating body
- overspeed
- speed
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
- B66B5/044—Mechanical overspeed governors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
Definitions
- This invention relates to a speed governor for an elevator having a speed governor sheave that is rotated as a car moves.
- the sheave is provided with a permanent magnet, a direct current generator that generates electric power according to the direction of rotation of the sheave, and an electromagnet whose magnetic poles change according to the electric power from the direct current generator.
- the electromagnet is attracted to the permanent magnet to restrict the flyweight rotation, and when the sheave is rotating forward, the electromagnet is repelled from the permanent magnet to release the restriction of the flyweight rotation.
- an elevator governor in which the set overspeed at the time of rising is increased (see Patent Document 3).
- the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator governor that can suppress an increase in size and can operate more reliably. .
- a governor for an elevator includes a support provided with a main shaft, a governor rope that is moved together with a car, and is wound around a main shaft according to the movement of the car.
- a flyweight provided on the governor sheave and rotated on the governor sheave according to the centrifugal force generated by the rotation of the governor sheave.
- An operating piece that is displaced with respect to the governor sheave radially outward of the governor sheave by rotation of the flyweight in a direction that increases the rotational speed of the governor sheave.
- the overspeed detection switch is displaced between the set position and the second set position operated by the operating piece when the speed of the car reaches a second overspeed higher than the first overspeed.
- a restriction device for restricting the range of displacement of the overspeed detection switch, an engageable position at which the engagement claw engages when the speed of the car reaches an emergency stop overspeed higher than the second overspeed, Clerk away from speed sheave A ratchet that is displaceable in the axial direction of the main shaft between the engagement avoiding position to avoid engagement with the pawl and rotated about the main shaft in the same direction as the governor sheave by engagement with the engaging pawl
- a second interlocking device that interlocks the rotating body and the ratchet, and displaces the ratchet between the engageable position and the engagement avoiding position according to the rotation direction of the rotating body, and is adjusted by rotating the ratchet.
- a gripping device for gripping the speed rope is provided.
- the rotational force in the same direction as the governor sheave is applied to the rotating body by the rotational force transmitting device, and the overspeed detection switch is interlocked with the rotating body by the first interlocking device. Because the ratchet is displaced in the axial direction of the main shaft in conjunction with the rotating body by the second interlocking device, it is not necessary to install a plurality of speed governors, and the overall size of the speed governor can be suppressed. it can. Further, it is possible to detect different overspeeds when the moving direction of the car is upward and downward without using an electrical speed detection sensor. Furthermore, the speed governor can be operated without supplying power to the speed governor. Accordingly, it is possible to prevent the speed governor from becoming impossible due to, for example, a power failure or disconnection, and the speed governor can be operated more reliably.
- FIG. 1 It is a block diagram which shows the elevator apparatus by Embodiment 1 of this invention. It is a front view which shows the governor of FIG. It is a sectional side view which shows the governor of FIG. It is a front view which shows the rotary body and rotational force transmission apparatus of FIG. It is a sectional side view which shows the rotary body and rotational force transmission apparatus of FIG. It is a front view which shows a governor when the cage
- FIG. 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
- a hoisting machine (driving device) 4 for generating a driving force for moving the car 2 and the counterweight 3 in the vertical direction and a deflecting wheel 5 are provided in the upper part of the hoistway 1.
- the hoisting machine 4 includes a hoisting machine main body 6 including a motor, and a driving sheave 7 provided in the hoisting machine main body 6 and rotated by the driving force of the hoisting machine main body 6.
- the deflecting wheel 5 is arranged away from the driving sheave 7.
- a suspension means 8 for suspending the car 2 and the counterweight 3 is wound around the driving sheave 7 and the deflecting wheel 5.
- a rope or a belt is used as the suspension means 8.
- the car 2 and the counterweight 3 are moved in the vertical direction in the hoistway 1 by the rotation of the driving sheave 7.
- the car 2 and the counterweight 3 are moved in the hoistway 1, the car 2 is guided to the car guide rail (not shown), and the counterweight 3 is guided to the counterweight guide rail (not shown). Is done.
- a mechanical emergency stop device 9 for preventing the car 2 from dropping is provided at the lower part of the car 2.
- the emergency stop device 9 is provided with an operation arm 10.
- the emergency stop device 9 grips the car guide rail by operating the operation arm 10.
- the fall of the car 2 is prevented by gripping the car guide rail by the safety device 9.
- a speed governor 11 is provided in the upper part in the hoistway 1, and a tension wheel 12 is provided in the lower part in the hoistway 1.
- a governor rope 13 is wound between the governor 11 and the tensioning wheel 12. One end and the other end of the governor rope 13 are connected to the operation arm 10. Thereby, the governor rope 13 is stretched between the governor 11 and the tension wheel 12 in a loop shape. The governor rope 13 is moved together with the car 2.
- the governor 11 can grip the governor rope 13.
- the operation arm 10 is operated by the governor rope 13 being gripped by the governor 11 when the car 2 is moved and the car 2 being displaced with respect to the governor rope 13.
- FIG. 2 is a front view showing the governor 11 of FIG.
- FIG. 3 is a side sectional view showing the governor 11 of FIG.
- a casing (support) 15 is fixed on a governor base 14 fixed in the hoistway 1.
- a main shaft 16 is fixed horizontally to the housing 15.
- a speed governor sheave 17 around which a speed governor rope 13 is wound is rotatably provided on the main shaft 16.
- the governor sheave 17 is rotated about the main shaft 16 in accordance with the movement of the governor rope 13 (that is, the movement of the car 2). That is, the governor sheave 17 is rotated in the forward direction (clockwise in FIG. 2) by the upward movement (upward) of the car 2, and the reverse direction (in FIG. 2) by the downward movement (downward) of the car 2. Counterclockwise). Further, the rotational speed of the governor sheave 17 is a speed corresponding to the moving speed of the car 2.
- the housing 15 is horizontally fixed between a pair of support plates 15a and 15b facing each other in the axial direction of the main shaft 16 and the lower ends of the support plates 15a and 15b. 14 and a bottom plate 15 c attached to the base plate 15.
- One end of the main shaft 16 is fixed to one support plate 15a, and the other end of the main shaft 16 is fixed to the other support plate 15b.
- the governor sheave 17 is provided with a pair of weight shafts 18 parallel to the axis of the main shaft 16. Each weight shaft 18 is disposed at a symmetrical position with respect to the axis of the main shaft 16. A flyweight 19 is rotatably attached to each weight shaft 18. In other words, the governor sheave 17 is provided with a pair of flyweights 19 that are individually rotatable about each of the pair of weight shafts 18.
- Each flyweight 19 is rotated around the weight shaft 18 with respect to the governor sheave 17 according to the centrifugal force generated by the rotation of the governor sheave 17. That is, each flyweight 19 is rotated with respect to the governor sheave 17 according to the rotational speed of the governor sheave 17.
- One end of one flyweight 19 and the other end of the other flyweight 19 are connected to each other via a link 20 as shown in FIG.
- a balance spring 21 that resists centrifugal force is provided between the other end of one flyweight 19 and the boss of the governor sheave 17. When the rotational speed of the governor sheave 17 increases, each flyweight 19 is rotated with respect to the governor sheave 17 against the spring force of the balance spring 21.
- One end of one flyweight 19 is provided with an operating piece 22 that protrudes radially outward of the governor sheave 17.
- the operating piece 22 is displaced with respect to the governor sheave 17 radially outward of the governor sheave 17 by the rotation of the flyweight 19 in the direction in which the rotational speed of the governor sheave 17 increases.
- the flyweight 19 is displaced relative to the governor sheave 17 inward in the radial direction of the governor sheave 17 by the rotation of the flyweight 19 in the direction in which the rotational speed of the governor sheave 17 decreases.
- the track of the operating piece 22 when the governor sheave 17 is rotated is accompanied by an increase in the rotational speed of the governor sheave 17 (that is, an increase in the moving speed of the car 2). It moves outward in the radial direction of the sheave 17.
- a plate-like switch mounting member 23 having a predetermined length is attached to the housing 15 via a pin 24.
- the pin 24 is disposed parallel to the axis of the main shaft 16.
- the switch mounting member 23 is rotatable about the pin 24. That is, the switch mounting member 23 is provided in the housing 15 so as to be displaceable.
- the overspeed detection switch 25 is attached to the other end of the switch attachment member 23. Accordingly, the overspeed detection switch 25 is displaced with respect to the housing 15 together with the switch mounting member 23. Further, the overspeed detection switch 25 is displaced in a direction in which the distance from the main shaft 16 changes due to the rotation of the switch mounting member 23 relative to the housing 15.
- the overspeed detection switch 25 has a switch body 26 fixed to the other end of the switch mounting member 23 and an operation lever 27 protruding from the switch body 26 toward the main shaft 16 side.
- the overspeed detection switch 25 outputs a stop signal to an elevator control device (not shown) when the operation lever 27 is operated.
- the control device receives a stop signal from the overspeed detection switch 25, the power supply to the hoisting machine 4 is stopped by the control of the control device, and the brake device (not shown) of the hoisting machine 4 is operated. .
- the casing 15 is provided with a regulating device 28 that regulates the range of displacement of the overspeed detection switch 25.
- the regulating device 28 includes a first stopper 29 that regulates the displacement of the overspeed detection switch 25 in a direction approaching the main shaft 16 and a second stopper that regulates the displacement of the overspeed detection switch 25 in a direction away from the main shaft 16. 30.
- the first stopper 29 is fixed at a position closer to the main shaft 16 than the switch mounting member 23, and the second stopper 30 is fixed at a position farther from the main shaft 16 than the switch mounting member 23.
- the displacement of the overspeed detection switch 25 in the direction approaching the main shaft 16 is restricted by the switch mounting member 23 coming into contact with the first stopper 29, and the displacement of the overspeed detection switch 25 in the direction away from the main shaft 16 is controlled. Is controlled by hitting the second stopper 30.
- the position of the overspeed detection switch 25 with respect to the main shaft 16 becomes a predetermined low overspeed setting position (first setting position) when the switch mounting member 23 hits the first stopper 29, and the switch mounting member 23 becomes the second stopper.
- first setting position When the switch mounting member 23 hits the first stopper 29, and the switch mounting member 23 becomes the second stopper.
- second set position By hitting 30, it becomes a high overspeed setting position (second set position) farther from the spindle 16 than the low overspeed setting position. That is, the range of displacement of the overspeed detection switch 25 is limited by the regulating device 28 to a range between the low overspeed setting position and the high overspeed setting position.
- the tip of the operation lever 27 is disposed on the track A of the operating piece 22 when the speed of the car 2 is the predetermined first overspeed V1. Is done. Therefore, when the overspeed detection switch 25 is in the low overspeed setting position, the operating lever 27 is operated by the operating piece 22 because the speed of the car 2 becomes the first overspeed V1.
- the overspeed detection switch 25 when the overspeed detection switch 25 is at the high overspeed setting position, the speed of the car 2 is on the track B of the operating piece 22 when the speed of the car 2 is the second overspeed V2 higher than the first overspeed V1.
- the distal end portion of the operation lever 27 is disposed at the top. Accordingly, when the overspeed detection switch 25 is in the high overspeed setting position, the speed of the car 2 becomes the second overspeed V2 higher than the first overspeed V1, and the operation lever 27 is operated by the operating piece 22. Is done.
- the other end of the other flyweight 19 is provided with an engaging claw 31 that protrudes inward in the radial direction of the governor sheave 17. Accordingly, the engaging claw 31 is moved radially inward of the governor sheave 17 with respect to the governor sheave 17 by the rotation of the flyweight 19 in the direction in which the rotational speed of the governor sheave 17 increases.
- the flyweight 19 is displaced in the direction in which the rotational speed of the governor sheave 17 is reduced, and is displaced with respect to the governor sheave 17 radially outward of the governor sheave 17.
- a ratchet 32 is provided on the main shaft 16 separately from the governor sheave 17.
- the ratchet 32 is rotatable about the main shaft 16. Further, as shown in FIG. 3, the ratchet 32 is arranged in the axial direction of the main shaft 16 between a predetermined engageable position and an engagement avoidance position farther from the speed governor sheave 17 than the engageable position. Displaceable.
- the ratchet 32 has an outer periphery only when the speed governor sheave 17 rotates in the opposite direction (that is, when the car 2 moves downward). A plurality of teeth that can be engaged with the pawl 31 are provided.
- the ratchet 32 When the ratchet 32 is in the engageable position, if the speed of the car 2 becomes the emergency stop overspeed V3 higher than the second overspeed V2 during the downward movement of the car 2, the engaging pawls are engaged with the teeth of the ratchet 32. 31 is engaged. When the ratchet 32 is in the engagement avoidance position, the position of the ratchet 32 is out of the range of displacement of the engagement claw 31 and the engagement between the teeth of the ratchet 32 and the engagement claw 31 is avoided. When the speed governor sheave 17 is rotated in the reverse direction (that is, when the car 2 is lowered), the ratchet 32 is engaged with the teeth of the ratchet 32 so that the speed governor sheave 32 is engaged. 17 is rotated in the same direction.
- the governor base 14 is provided with a gripping device 33 that grips the governor rope 13 by rotating the ratchet 32 in the reverse direction (counterclockwise in FIG. 2). As shown in FIG. 2, the gripping device 33 is disposed below the ratchet 32.
- the gripping device 33 includes a pressing plate (receiving portion) 34 fixed to the governor base 14, an extendable telescopic arm 36 having one end rotatably attached to a pin 35 of the governor base 14, A brake shoe (movable part) 37 that is pivotally attached to the other end of the telescopic arm 36 and is displaced in a direction of contacting and separating from the holding plate 34 by the pivoting of the telescopic arm 36, and the telescopic arm 36. And a pressing spring 38 that generates an elastic repulsive force against a force in a direction in which the telescopic arm 36 contracts.
- the brake shoe 37 holds the governor rope 13 between the holding plate 34 and the release position where the brake shoe 37 is released from the holding plate 34 and releases the governor rope 13 by the rotation of the telescopic arm 36. It is possible to displace between.
- the telescopic arm 36 is contracted, and the brake shoe 37 is pressed against the pressing plate 34 via the governor rope 13 by the elastic repulsive force of the pressing spring 38.
- a support lever 39 is rotatably connected to the telescopic arm 36.
- a holding pin 40 on which the upper end portion of the support lever 39 is hung is fixed to the side surface of the ratchet 32.
- the brake shoe 37 is held in the open position by the support lever 39 being hooked on the holding pin 40.
- the support lever 39 is disengaged from the holding pin 40 when the ratchet 32 rotates in the same direction as the governor sheave 17 while the engaging claw 31 engages with the teeth of the ratchet 32.
- the brake shoe 37 is displaced to the gripping position by its own weight when the support lever 39 is detached from the holding pin 40.
- a tension spring 41 is connected between the support lever 39 and the governor base 14 in order to prevent the support lever 39 from being accidentally detached from the holding pin 40 due to vibration or the like (malfunction).
- the main shaft 16 is provided with a disc-shaped rotating body 42 separately from the governor sheave 17 and the ratchet 32.
- the rotating body 42 is rotatable about the main shaft 16.
- the rotating body 42 is disposed on the opposite side of the ratchet 32 side with respect to the governor sheave 17 in the axial direction of the main shaft 16. Rotational force transmission between the rotating body 42 and the governor sheave 17 gives the rotating body 42 rotational force in the same direction as the governor sheave 17 by rotating the governor sheave 17.
- a device 43 is provided.
- FIG. 4 is a front view showing the rotating body 42 and the rotational force transmitting device 43 of FIG.
- FIG. 5 is a side sectional view showing the rotating body 42 and the rotational force transmitting device 43 in FIG.
- a cylindrical fixing portion 44 centering on the axis of the main shaft 16 is fixed to the surface of the governor sheave 17 on the rotating body 42 side.
- the rotational force transmission device 43 includes a plurality of (in this example, two) permanent magnets 45 fixed to the inner surface of the fixing portion 44, and a speed governor sheave fixed to the side surface of the rotating body 42. 17 and a metal body 46 disposed on the radially inner side.
- the permanent magnets 45 are arranged at intervals in the circumferential direction of the fixed portion 44. Each permanent magnet 45 moves on a circular orbit around the metal body 46 by being rotated integrally with the governor sheave 17.
- the metal body 46 is a cylindrical member centered on the axis of the main shaft 16. Further, the metal body 46 is a laminated body constituted by laminating a plurality of metal plates in the axial direction of the main shaft 16. Further, the metal body 46 faces each permanent magnet 45 through a predetermined gap in the radial direction of the governor sheave 17. The metal body 46 is rotated integrally with the rotating body 42 while facing the permanent magnets 45 inside the fixed portion 44.
- each permanent magnet 45 moves integrally with the governor sheave 17 around the metal body 46.
- an eddy current is generated on the surface of the metal body 46, so that the governor sheave 17 is based on the principle of Arago's disk. Is generated in the metal body 46 in the same direction.
- the rotational force in the same direction as the governor sheave 17 is given to the rotating body 42. That is, the rotational force transmission device 43 applies the rotational force received from the governor sheave 17 to the rotating body 42 in a non-contact manner according to the rotational direction of the governor sheave 17.
- the rotating body 42 receives a rotational force in the forward direction when the governor sheave 17 is rotated in the forward direction, and rotates in the reverse direction when the governor sheave 17 is rotated in the reverse direction. Receive power.
- a connecting pin 47 parallel to the axis of the main shaft 16 is provided on the side surface of the rotating body 42. As shown in FIG. 2, a connecting pin 48 parallel to the axis of the main shaft 16 is provided at an intermediate portion of the switch mounting member 23. A first link member 49 as a first interlocking device that interlocks the rotating body 42 and the switch mounting member 23 is connected between the connecting pins 47 and 48.
- first link member 49 is rotatably attached to the connecting pin 47.
- a long hole 50 is provided along the length direction of the first link member 49.
- the other end of the first link member 49 is attached to the connection pin 48 in a state where the connection pin 48 is slidably inserted into the long hole 50.
- Each support plate 15a, 15b is provided with a long hole 51 along the vertical direction.
- Each long hole 51 is arranged on a vertical plane including the axis of the main shaft 16.
- a common connecting shaft 52 is horizontally provided between the support plates 15 a and 15 b in a state where the common connecting shaft 52 is passed through the long holes 51.
- the connecting shaft 52 is slidable in the vertical direction within each elongated hole 51.
- the second link member 53 is connected between the connection pin 47 and the connection shaft 52.
- One end of the second link member 53 is rotatably attached to the connecting pin 47.
- the other end of the second link member 53 is fixed to the connecting shaft 52. Accordingly, the connecting shaft 52 is rotated around the axis of the connecting shaft 52 when the connecting pin 47 is displaced between the first limit position and the second limit position.
- a protrusion 54 disposed above the elongated hole 51 is fixed to each of the support plates 15a and 15b.
- a pulling spring 55 that biases the connecting shaft 52 in a direction approaching the protrusion 54 (upward) is connected between both ends of the connecting shaft 52 and each protrusion 54.
- the first cam 56 is fixed to the connecting shaft 52.
- the first cam 56 is rotated around the axis of the connecting shaft 52 integrally with the connecting shaft 52.
- a ratchet biasing spring that biases the ratchet 32 in a direction away from the governor sheave 17 along the axis of the main shaft 16. (Biasing body) 57 is provided.
- a second cam 58 that receives the biasing force of the ratchet biasing spring 57 while being in contact with the side surface of the ratchet 32 is provided on the outer peripheral surface of the main shaft 16.
- the second cam 58 is disposed at a position away from the ratchet 32 as viewed from the governor sheave 17.
- the second cam 58 is rotatable around an axis along the radial direction of the main shaft 16.
- first cam 56 and the second cam 58 there is disposed a shaft 59 whose one end is in contact with the first cam 56 and whose other end is in contact with the second cam 58.
- the shaft 59 is displaced in the vertical direction according to the rotation of the first cam 56.
- the second cam 58 is rotated according to the vertical displacement of the shaft 59.
- the ratchet 32 is displaced between the engageable position and the engagement avoidance position according to the rotation of the second cam 58.
- the ratchet 32 is interlocked with the rotating body 42 via the second link member 53, the connecting shaft 52, the first cam 56, the shaft 59, and the second cam 58.
- the second link member 53, the connecting shaft 52, the first cam 56, the shaft 59, and the second cam 58 are operated in this order in accordance with the rotating direction of the rotating body 42.
- the ratchet 32 is displaced between the engageable position and the engagement avoidance position in accordance with the rotation direction of the rotating body 42.
- the ratchet 32 is displaced to the engagement avoidance position when the rotating body 42 is rotated in the forward direction, and is displaced to the engageable position when the rotating body 42 is rotated in the reverse direction.
- the second interlocking device 60 that interlocks the rotating body 42 and the ratchet 32 includes a second link member 53, a connecting shaft 52, a first cam 56, a shaft 59, a second cam 58, and a ratchet biasing force.
- a spring 57 is provided.
- the speed governor 11 includes a housing 15, a speed governor sheave 17, a flyweight 19, an operating piece 22, a switch mounting member 23, an overspeed detection switch 25, a regulating device 28, an engaging claw 31, a ratchet 32, It has a gripping device 33, a rotating body 42, a rotational force transmission device 43, a first link member 49, and a second interlocking device 60.
- each flyweight 19 rotates about the weight shaft 18 against the spring force of the balance spring 21.
- the operating piece 22 is gradually displaced outward in the radial direction of the governor sheave 17, and the rotational trajectory radius of the operating piece 22 gradually increases.
- each permanent magnet 45 also rotates in the reverse direction (counterclockwise in FIG. 7) together with the governor sheave 17. Is done. At this time, an eddy current is generated on the surface of the metal body 46, and a rotational force in the same direction as that of the governor sheave 17 is generated in the metal body 46 by the principle of Arago's disk. Thereby, the rotating body 42 receives the rotational force in the reverse direction.
- the second link member 53 integrally moves the connecting shaft 52 in the clockwise direction of FIG. 7 together with the connecting shaft 52 and the first cam 56. It is rotated to the center.
- the shaft 59 is pushed up by the first cam 56, and the second cam 58 is rotated in a direction in which the ratchet 32 approaches the speed governor sheave 17.
- the ratchet 32 is displaced in a direction approaching the speed governor sheave 17 against the biasing force of the ratchet biasing spring 57 and reaches the engageable position.
- the operating lever 27 When the overspeed detection switch 25 is at the low overspeed setting position, the operating lever 27 is operated by the operating piece 22 moved on the track A as shown in FIG. The operating piece 22 moves on the track A when the speed of the car 2 reaches the first overspeed V1. Therefore, when the car 2 descends, the operating lever 27 is operated by the operating piece 22 when the speed of the car 2 reaches the first overspeed V1.
- the operation lever 27 When the operation lever 27 is operated by the operating piece 22, the power supply to the hoisting machine 4 is stopped and the brake device of the hoisting machine 4 is operated.
- the speed of the car 2 continues to increase even after the hoisting machine 4 stops, and the speed of the car 2 reaches the emergency stop overspeed V3 higher than the first overspeed V1.
- the engaging claw 31 is engaged with the outer peripheral portion of the ratchet 32.
- the ratchet 32 is rotated in the same direction as the governor sheave 17 and the support lever 39 is disengaged from the holding pin 40.
- the brake shoe 37 is displaced by its own weight from the open position shown in FIG. 11 to the gripping position shown in FIG. Thereby, the governor rope 13 is gripped between the pressing plate 34 and the brake shoe 37, and the movement of the governor rope 13 is stopped.
- each flyweight 19 receives a centrifugal force corresponding to the rotational speed of the governor sheave 17, so that the operating piece 22 of the governor sheave 17 increases as the moving speed of the car 2 increases. It is gradually displaced radially outward.
- each permanent magnet 45 is also rotated in the forward direction (clockwise in FIG. 14) together with the governor sheave 17.
- an eddy current is generated on the surface of the metal body 46, and a rotational force in the same direction as that of the governor sheave 17 is generated in the metal body 46 by the principle of Arago's disk.
- the rotating body 42 receives a rotational force in the positive direction.
- the position of the overspeed detection switch 25 becomes the high overspeed setting position, and the position of the ratchet 32 becomes the engagement avoidance position.
- the operation lever 27 When the overspeed detection switch 25 is at the high overspeed setting position, the operation lever 27 is operated by the operating piece 22 moved on the track B.
- the actuating piece 22 moves on the track B when the speed of the car 2 reaches the second overspeed V2 higher than the first overspeed V1. Therefore, when the car 2 moves up, the operating lever 27 is operated by the operating piece 22 when the speed of the car 2 reaches the second overspeed V2.
- the operation lever 27 is operated by the operating piece 22, the power supply to the hoisting machine 4 is stopped and the brake device of the hoisting machine 4 is operated.
- the rotational force transmission device 43 includes a permanent magnet 45 that is rotated integrally with the governor sheave 17, and a metal body that is opposed to the permanent magnet 45 with a predetermined gap and is rotated integrally with the rotating body 42. 46, the rotational force in the same direction as the governor sheave 17 can be applied to the rotating body 42 with a simple configuration. Thereby, size reduction of the governor 11 can be achieved.
- Embodiment 2 FIG. In the first embodiment, the overspeed detection switch 25 is displaced in the direction in which the distance from the main shaft 16 changes. However, the overspeed detection switch 25 is displaced in the axial direction of the main shaft 16. It may be.
- FIG. 16 is a top view showing a state when the overspeed detection switch of the elevator governor according to the second embodiment of the present invention is in the low overspeed setting position (first setting position).
- FIG. 17 is a top view showing a state when the overspeed detection switch of the elevator governor of FIG. 16 is at the high overspeed setting position (second setting position).
- a switch mounting member (not shown) to which the overspeed detection switch 25 is mounted is rotatable about a pin having an axis perpendicular to the axis of the main shaft 16. Accordingly, the overspeed detection switch 25 is displaced in the axial direction of the main shaft 16 when the switch mounting member is rotated with respect to the housing 15.
- the range in which the overspeed detection switch 25 is displaced is such that the rotation of the switch mounting member is restricted by the same restriction device as in the first embodiment, so that the predetermined low overspeed setting position (FIG. 16) It is limited to a range between a high overspeed setting position (FIG. 17) that is further away from the speed governor sheave 17 in the axial direction of the main shaft 16 than the speed setting position.
- the switch mounting member and the rotating body 42 are interlocked via a first interlocking device including a plurality of link members. Accordingly, the overspeed detection switch 25 is displaced between the low overspeed setting position and the high overspeed setting position according to the rotation direction of the rotating body 42. That is, the overspeed detection switch 25 is displaced to the high overspeed setting position when the rotating direction of the rotating body 42 is the positive direction (that is, when the car 2 moves upward), and the rotating direction of the rotating body 42 is Is in the reverse direction (that is, when the car 2 moves downward), it is displaced to the low overspeed setting position.
- the overspeed detection switch 25 has a switch body 26 fixed to the switch mounting member and an operation lever 27 protruding from the switch body 26.
- the operation lever 27 includes a lever main body 27a along the side surface of the governor sheave 17, and a first projecting piece 27b and a second projecting piece 27c that project from the lever main body 27a toward the governor sheave 17 respectively. And have.
- the first projecting piece 27b is disposed at the same position as the track A in the radial direction of the governor sheave 17.
- the second projecting piece 27 c is disposed at the same position as the track B in the radial direction of the governor sheave 17. Accordingly, the first protruding piece 27b is disposed at a position closer to the main shaft 16 than the second protruding piece 27c.
- the length of the first protruding piece 27b (that is, the dimension of the main shaft 16 in the axial direction) is shorter than the length of the second protruding piece 27c.
- the operating piece 22 passes on a predetermined plane (operating piece displacement surface) perpendicular to the axis of the main shaft 16 by the rotation of the flyweight 19. That is, the path through which the operating piece 22 is displaced with respect to the governor sheave 17 is included in a predetermined plane perpendicular to the axis of the main shaft 16.
- each of the first protruding piece 27 b and the second protruding piece 27 c has a predetermined plane including the path of the operating piece 22. Crossed. Therefore, when the overspeed detection switch 25 is in the low overspeed setting position, when the speed of the car 2 reaches the first overspeed V1 and the operating piece 22 reaches the track A, the operating piece 22 is moved to the first protruding piece. The operation lever 27 is operated by hitting 27b.
- the overspeed detection switch 25 When the overspeed detection switch 25 is in the high overspeed setting position, as shown in FIG. 17, the first projecting piece 27b comes off from a predetermined plane including the path of the operating piece 22, and only the second projecting piece 27c is present. Crosses a predetermined plane. Therefore, when the overspeed detection switch 25 is in the high overspeed setting position, even if the speed of the car 2 becomes the first overspeed V1 and the operating piece 22 reaches the track A, the operating piece 22 is not in the first protrusion. The operation lever 27 is not operated without hitting the piece 27b.
- the overspeed detection switch 25 is displaced in the axial direction of the main shaft 16, the speed of the car 2 when the overspeed detection switch 25 is operated by the operating piece 22 is referred to as the first overspeed V1. Switching between the second overspeed V2 and the speed governor sheave 17 can be performed.
- the permanent magnet 45 is fixed to the fixing portion 44 of the governor sheave 17 and the metal body 46 is fixed to the rotating body 42.
- the metal body 46 is fixed to 44, the permanent magnet 45 is fixed to the rotating body 42, the metal body 46 is rotated integrally with the governor sheave 17, and the permanent magnet 45 is rotated integrally with the rotating body 42. It may be.
- the permanent magnet 45 and the metal body 46 are opposed to each other with a predetermined gap in the radial direction of the governor sheave 17, but the permanent magnet 45 and the metal body 46 are the main shaft.
- the sixteen axial directions may face each other through a predetermined gap.
- the rotational force transmission apparatus 43 has the permanent magnet 45 and the metal body 46, and the rotational force to the same direction as the governor sheave 17 using the principle of an Arago disk. Is provided to the rotating body 42, and any device that applies a rotational force in the same direction as the governor sheave 17 to the rotating body 42 while rotating separately from the governor sheave 17 can be used. It is not limited to.
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Abstract
Description
また、特許文献2に示されたプログレッシブ安全装置では、停電すると電磁アクチュエータへ給電することができなくなり、装置を動作させることができなくなってしまう。これにより、装置の動作の信頼性が低下してしまう。
さらに、特許文献3に示されたエレベータ用調速機では、直流発電機や電磁石の断線故障等が生じるおそれがあり、装置の動作の信頼性が低下してしまう。また、装置の動作の信頼性を向上させるために、断線故障等を監視する監視装置を設けることも考えられるが、この場合、装置が複雑になってしまう。
実施の形態1.
図1は、この発明の実施の形態1によるエレベータ装置を示す構成図である。図において、昇降路1内の上部には、かご2及び釣合おもり3を上下方向へ移動させる駆動力を発生する巻上機(駆動装置)4と、そらせ車5とが設けられている。巻上機4は、モータを含む巻上機本体6と、巻上機本体6に設けられ、巻上機本体6の駆動力により回転される駆動綱車7とを有している。そらせ車5は、駆動綱車7から離して配置されている。
実施の形態1では、主軸16との距離が変化する方向へ過速度検出スイッチ25が変位されるようになっているが、過速度検出スイッチ25が主軸16の軸線方向へ変位されるようになっていてもよい。
Claims (2)
- 主軸が設けられた支持体、
かごとともに移動される調速機ロープが巻き掛けられ、上記かごの移動に応じて上記主軸を中心に回転される調速機綱車、
上記調速機綱車に設けられ、上記調速機綱車の回転によって生じる遠心力に応じて上記調速機綱車に対して回動されるフライウェイト、
上記フライウェイトに設けられ、上記調速機綱車の回転速度が増加する方向への上記フライウェイトの回動により上記調速機綱車の径方向外側へ上記調速機綱車に対して変位される作動片、
上記フライウェイトに設けられ、上記調速機綱車の回転速度が増加する方向への上記フライウェイトの回動により上記調速機綱車の径方向内側へ変位される係合爪、
上記調速機綱車とは別個に上記主軸を中心に回転自在な回転体、
上記調速機綱車が回転されることにより、上記調速機綱車と同方向への回転力を上記回転体に与える回転力伝達装置、
上記支持体に変位可能に設けられたスイッチ取付部材、
上記回転体と上記スイッチ取付部材とを連動させ、上記回転体の回転方向に応じて上記スイッチ取付部材を変位させる第1の連動装置、
上記スイッチ取付部材とともに変位され、上記作動片の操作により作動される過速度検出スイッチ、
上記かごの速度が所定の第1の過速度になったときに上記作動片によって操作される第1の設定位置と、上記かごの速度が上記第1の過速度よりも高い第2の過速度になったときに上記作動片によって操作される第2の設定位置との間で上記過速度検出スイッチが変位されるように上記過速度検出スイッチの変位の範囲を規制する規制装置、
上記かごの速度が上記第2の過速度よりも高い非常止め過速度になったときに上記係合爪が係合する係合可能位置と、上記調速機綱車から離れて上記係合爪との係合を避ける係合回避位置との間で上記主軸の軸線方向へ変位可能で、上記係合爪との係合により上記調速機綱車と同方向へ上記主軸を中心に回転されるラチェット、
上記回転体と上記ラチェットとを連動させ、上記回転体の回転方向に応じて上記係合可能位置と上記係合回避位置との間で上記ラチェットを変位させる第2の連動装置、及び
上記ラチェットが回転されることにより上記調速機ロープを把持する把持装置
を備えていることを特徴とするエレベータ用調速機。 - 上記回転力伝達装置は、上記調速機綱車及び上記回転体のいずれか一方と一体に回転される永久磁石と、上記永久磁石に対して所定の隙間を介して対向し、上記調速機綱車及び上記回転体のいずれか他方と一体に回転される金属体とを有していることを特徴とする請求項1に記載のエレベータ用調速機。
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PCT/JP2010/063384 WO2012017549A1 (ja) | 2010-08-06 | 2010-08-06 | エレベータ用調速機 |
JP2012527518A JPWO2012017549A1 (ja) | 2010-08-06 | 2010-08-06 | エレベータ用調速機 |
CN2010800684612A CN103052583A (zh) | 2010-08-06 | 2010-08-06 | 电梯用限速器 |
EP10855639.0A EP2602222A1 (en) | 2010-08-06 | 2010-08-06 | Elevator speed governor |
KR1020137003057A KR20130054336A (ko) | 2010-08-06 | 2010-08-06 | 엘리베이터용 조속기 |
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PCT/JP2010/063384 WO2012017549A1 (ja) | 2010-08-06 | 2010-08-06 | エレベータ用調速機 |
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EP (1) | EP2602222A1 (ja) |
JP (1) | JPWO2012017549A1 (ja) |
KR (1) | KR20130054336A (ja) |
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CN102992134A (zh) * | 2012-12-05 | 2013-03-27 | 江南嘉捷电梯股份有限公司 | 电梯上利用导向轮的保护装置 |
WO2014125574A1 (ja) * | 2013-02-13 | 2014-08-21 | 株式会社日立製作所 | エレベータ装置 |
JP2014169134A (ja) * | 2013-03-01 | 2014-09-18 | Hitachi Ltd | エレベータ装置 |
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JP2016016935A (ja) * | 2014-07-08 | 2016-02-01 | 東芝エレベータ株式会社 | エレベータの調速機 |
JP2016145113A (ja) * | 2016-04-06 | 2016-08-12 | 株式会社日立製作所 | エレベータ装置 |
JP6039011B1 (ja) * | 2015-06-10 | 2016-12-07 | 東芝エレベータ株式会社 | エレベータ装置 |
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CN108083050A (zh) * | 2018-01-08 | 2018-05-29 | 台州富士电梯制造有限公司 | 一种防爆限速器 |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000327241A (ja) * | 1999-05-17 | 2000-11-28 | Mitsubishi Electric Corp | エレベータ装置および調速装置 |
JP2000335846A (ja) * | 1999-05-27 | 2000-12-05 | Mitsubishi Electric Corp | エレベータ調速機 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2790615B2 (ja) * | 1994-10-20 | 1998-08-27 | 三菱電機株式会社 | エレベータ用調速機 |
DE19906073C2 (de) * | 1999-02-12 | 2003-03-27 | Inventio Ag | Vorrichtung zum Verhindern unkontrollierter Beschleunigungen eines Fahrkorbs einer Aufzugsanlage |
CN1206151C (zh) * | 2000-10-31 | 2005-06-15 | 三菱电机株式会社 | 电梯调速机 |
CN2477593Y (zh) * | 2001-05-25 | 2002-02-20 | 河北东方机械厂 | 双向动作限速器 |
CN2640992Y (zh) * | 2003-09-11 | 2004-09-15 | 刘文久 | 电梯用双向限速器 |
JP4212997B2 (ja) * | 2003-09-17 | 2009-01-21 | 東芝エレベータ株式会社 | エレベータの調速機構 |
EP1770044B1 (en) * | 2004-07-22 | 2015-01-28 | Mitsubishi Denki Kabushiki Kaisha | Speed governor of elevator |
JP4698191B2 (ja) * | 2004-09-22 | 2011-06-08 | 東芝エレベータ株式会社 | エレベータの調速機 |
JP2009154984A (ja) * | 2007-12-25 | 2009-07-16 | Mitsubishi Electric Corp | エレベータ用調速機 |
JP5264786B2 (ja) * | 2008-01-25 | 2013-08-14 | 三菱電機株式会社 | エレベータ装置 |
-
2010
- 2010-08-06 JP JP2012527518A patent/JPWO2012017549A1/ja not_active Ceased
- 2010-08-06 KR KR1020137003057A patent/KR20130054336A/ko active IP Right Grant
- 2010-08-06 WO PCT/JP2010/063384 patent/WO2012017549A1/ja active Application Filing
- 2010-08-06 CN CN2010800684612A patent/CN103052583A/zh active Pending
- 2010-08-06 EP EP10855639.0A patent/EP2602222A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000327241A (ja) * | 1999-05-17 | 2000-11-28 | Mitsubishi Electric Corp | エレベータ装置および調速装置 |
JP2000335846A (ja) * | 1999-05-27 | 2000-12-05 | Mitsubishi Electric Corp | エレベータ調速機 |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102992134A (zh) * | 2012-12-05 | 2013-03-27 | 江南嘉捷电梯股份有限公司 | 电梯上利用导向轮的保护装置 |
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CN104936880A (zh) * | 2013-02-13 | 2015-09-23 | 株式会社日立制作所 | 电梯装置 |
JP5917764B2 (ja) * | 2013-02-13 | 2016-05-18 | 株式会社日立製作所 | エレベータ装置 |
JP2014169134A (ja) * | 2013-03-01 | 2014-09-18 | Hitachi Ltd | エレベータ装置 |
CN104512783A (zh) * | 2013-09-27 | 2015-04-15 | 株式会社日立制作所 | 电梯设备 |
CN104512783B (zh) * | 2013-09-27 | 2017-01-04 | 株式会社日立制作所 | 电梯设备 |
JP2016016935A (ja) * | 2014-07-08 | 2016-02-01 | 東芝エレベータ株式会社 | エレベータの調速機 |
JP6039011B1 (ja) * | 2015-06-10 | 2016-12-07 | 東芝エレベータ株式会社 | エレベータ装置 |
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JPWO2017033270A1 (ja) * | 2015-08-25 | 2018-02-15 | 株式会社日立製作所 | エレベータ用調速機及びエレベータ装置 |
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CN108137271B (zh) * | 2015-10-13 | 2019-11-19 | 株式会社日立制作所 | 电梯设备 |
JP2016145113A (ja) * | 2016-04-06 | 2016-08-12 | 株式会社日立製作所 | エレベータ装置 |
CN108083050A (zh) * | 2018-01-08 | 2018-05-29 | 台州富士电梯制造有限公司 | 一种防爆限速器 |
CN113776804A (zh) * | 2021-09-22 | 2021-12-10 | 日立电梯电机(广州)有限公司 | 制动器动态寿命试验测试方法 |
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EP2602222A1 (en) | 2013-06-12 |
KR20130054336A (ko) | 2013-05-24 |
JPWO2012017549A1 (ja) | 2013-09-19 |
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