WO2011099123A1 - エレベータ用巻上機のブレーキ装置 - Google Patents
エレベータ用巻上機のブレーキ装置 Download PDFInfo
- Publication number
- WO2011099123A1 WO2011099123A1 PCT/JP2010/051965 JP2010051965W WO2011099123A1 WO 2011099123 A1 WO2011099123 A1 WO 2011099123A1 JP 2010051965 W JP2010051965 W JP 2010051965W WO 2011099123 A1 WO2011099123 A1 WO 2011099123A1
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- WO
- WIPO (PCT)
- Prior art keywords
- hoisting machine
- main body
- adjustment
- hole
- electromagnetic actuator
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
- B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
Definitions
- This invention relates to a brake device for an elevator hoisting machine that is provided in a hoisting machine having a drive sheave around which a rope or belt for suspending a car is wound and brakes the rotation of the driving sheave.
- a brake device of an elevator hoisting machine that presses a brake shoe against a brake drum to brake the rotation of the brake drum.
- a fixed iron core provided with an electromagnetic coil is disposed at a predetermined position away from the brake drum.
- a movable iron core that is displaced together with the brake shoe is provided between the fixed iron core and the brake shoe.
- the movable iron core and the brake shoe are joined by screwing a plurality of spherical bolts provided on the brake shoe to the movable iron core. Adjustment of the gap between the brake drum and the brake shoe is performed by adjusting the screwing amount of each spherical bolt to the movable iron core (see Patent Document 1).
- the present invention has been made in order to solve the above-described problems, and can be miniaturized, and can be used to adjust the gap between the rotating body and the movable body steplessly.
- the purpose is to obtain the brake device of the machine.
- a brake device for an elevator hoisting machine includes a rotating body and a movable body that are rotated with respect to the hoisting machine main body, and is attached to the hoisting machine main body and provided with an adjustment screw hole.
- Brake device main body having an electromagnetic actuator for displacing the movable body in the separating direction, an adjustment collar screwed into the adjustment screw hole and disposed between the hoisting machine main body and the electromagnetic actuator, and hoisting
- a mounting device that attaches the electromagnetic actuator to the hoisting machine main body while the machine body is receiving the adjusting collar is provided, and the position of the brake device main body with respect to the hoisting machine main body is the screwing amount of the adjusting collar with respect to the adjusting screw hole Is adjusted in the direction in which the distance between the electromagnetic actuator and the rotating body changes.
- the adjusting collar is screwed into the adjusting screw hole provided in the electromagnetic actuator, and the electromagnetic actuator is wound while the hoisting machine body receives the adjusting collar. Since it is attached to the upper machine main body, the gap between the rotating body and the movable body can be adjusted steplessly by adjusting the screwing amount of the adjusting collar with respect to the adjusting screw hole. In addition, since there is no need to provide the movable body with a mechanism for adjusting the gap between the rotating body and the movable body, it is possible to reduce the size of the movable body. Thereby, size reduction of the whole brake device can be achieved.
- the distance between the inner surface of the elongated hole and the adjusting member changes in the major axis direction of the elongated hole by adjusting the protruding amount of the adjusting member into the elongated hole. Since the displacement of the electromagnetic actuator in the direction away from the rotating body is restricted by the adjustment member hitting the mounting member passed through the long hole, the adjustment of the gap between the rotating body and the movable body is adjusted into the long hole. This can be done steplessly by adjusting the amount of protrusion. In addition, since there is no need to provide the movable body with a mechanism for adjusting the gap between the rotating body and the movable body, it is possible to reduce the size of the movable body. Thereby, size reduction of the whole brake device can be achieved.
- 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 brake device of FIG. It is an enlarged view which shows the brake device main body of FIG. It is principal part sectional drawing which shows the brake device of the elevator hoisting machine by Embodiment 2 of this invention. It is principal part sectional drawing which shows the brake device of the winding machine for elevators by Embodiment 3 of this invention.
- FIG. 1 is a block diagram showing an elevator apparatus according to Embodiment 1 of the present invention.
- a car 2 and a counterweight 3 are arranged in a hoistway 1 so as to be able to move up and down.
- a machine room 4 is provided in the upper part of the hoistway 1.
- the machine room 4 is provided with a hoisting machine 5 that generates a driving force for raising and lowering the car 2 and the counterweight 3 in the hoistway 1, and a baffle 6.
- the hoisting machine 5 includes a hoisting machine main body 7 including a motor, a drive sheave 8 rotated by the hoisting machine main body 7, and a brake device that brakes rotation of the driving sheave 8 (brake device of an elevator hoisting machine). 9.
- the baffle wheel 6 is arranged away from the drive sheave 8.
- the car 2 and the counterweight 3 are suspended in the hoistway 1 by a plurality of suspension bodies 10 wound around the drive sheave 8 and the deflecting wheel 6.
- a rope or a belt is used as the suspension body 10.
- the car 2 and the counterweight 3 are moved up and down in the hoistway 1 by the rotation of the drive sheave 8.
- a car shock absorber 11 located below the car 2 and a counterweight shock absorber 12 located below the counterweight 3 are provided at the bottom (pit) of the hoistway 1.
- the car shock absorber 11 reduces the impact given to the car 2 when the car 2 receives a collision.
- the counterweight buffer 12 softens the impact applied to the counterweight 3 when it receives a collision with the counterweight 3.
- FIG. 2 is a front view showing the brake device 9 of FIG.
- the brake device 9 brakes the drive sheave 8 by applying a braking force to a rotating shaft (main shaft of the hoisting machine 5) 13 of the motor in the hoisting machine main body 7.
- the brake device 9 includes a brake drum (rotary body) 14 that is rotated integrally with the rotary shaft 13, a pair of brake device main bodies 15 that apply a braking force to the brake drum 14, and each brake device main body 15 being a hoisting machine.
- a plurality of mounting bolts (mounting devices) 16 that are respectively attached to the main body 7 and a plurality of adjusting collars 17 that individually adjust the positions of the brake device main bodies 15 with respect to the hoisting machine main body 7 are provided.
- Each brake device main body 15 is disposed at a radially outer position of the brake drum 14. Further, each brake device main body 15 is disposed at a symmetrical position with respect to the axis of the rotary shaft 13.
- each brake device main body 15 is attached to the hoisting machine main body 7 by two mounting bolts 16 for one brake device main body 15.
- the position of each brake device main body 15 with respect to the hoisting machine main body 7 is adjusted by two adjustment collars 17 for one brake device main body 15.
- FIG. 3 is an enlarged view showing the brake device main body 15 of FIG.
- the brake device main body 15 includes a movable body 18 and an electromagnetic actuator 19 that displaces the movable body 18 in a direction in which the movable body 18 contacts and separates from the outer peripheral portion of the brake drum 14.
- the movable body 18 has a movable iron core 20, a friction piece 21 provided on the movable iron core 20, and a guide pin 22 protruding from the movable iron core 20 in a direction in which the movable body 18 is displaced.
- the movable body 18 can be displaced in a direction in which the friction piece 21 contacts and separates from the outer peripheral portion of the brake drum 14.
- the movable iron core 20 and the friction piece 21 are arranged between the outer periphery of the brake drum 14 and the electromagnetic actuator 19.
- the friction piece 21 is provided on the surface of the movable iron core 20 on the brake drum 14 side.
- the guide pin 22 protrudes from the surface of the movable iron core 20 on the electromagnetic actuator 19 side.
- the electromagnetic actuator 19 includes a fixed iron core 23 disposed away from the brake drum 14 and a plurality of urging springs (attached to the fixed iron core 23 that urge the movable body 18 in a direction in contact with the outer peripheral portion of the brake drum 14. 24) and an electromagnetic coil 25 which is provided on the fixed iron core 23 and displaces the movable body 18 in a direction away from the outer peripheral portion of the brake drum 14 against the urging force of the urging spring 24.
- a guide hole 26 that penetrates the fixed iron core 23 in a direction in which the movable body 18 is displaced is provided.
- the guide pin 22 is inserted into the guide hole 26.
- the movable body 18 is displaced in a direction in which the guide pin 22 contacts and separates from the outer peripheral portion of the brake drum 14 while the guide pin 22 is guided by the guide hole 26.
- Each urging spring 24 and electromagnetic coil 25 are arranged around the guide hole 26.
- Each biasing spring 24 is contracted between the fixed iron core 23 and the movable iron core 20.
- the elastic restoring force of each biasing spring 24 is a biasing force that biases the movable body 18.
- the electromagnetic coil 25 generates an electromagnetic attractive force that attracts the movable iron core 20 toward the fixed iron core 23 when energized.
- the movable body 18 is displaced in a direction away from the outer peripheral portion of the brake drum 14 when the movable iron core 20 receives the electromagnetic attraction force by the electromagnetic coil 25 and is displaced toward the fixed iron core 23 side.
- the braking force is applied to the brake drum 14 when the movable body 18 contacts the outer periphery of the brake drum 14.
- the braking force applied to the brake drum 14 is released when the movable body 18 moves away from the brake drum 14.
- a pair of adjustment screw holes 27 are provided on the outer peripheral portion of the fixed iron core 23.
- the depth direction of each adjustment screw hole 27 coincides with the direction in which the movable body 18 is displaced (depth direction of the guide hole 26). Further, the opening of each adjustment screw hole 27 faces the hoisting machine main body 7.
- each adjustment screw hole 27 is arranged at a symmetrical position with respect to the axis of the guide hole 26.
- each mounting through hole 28 for mounting penetrating the fixed core 23 is provided on the outer peripheral portion of the fixed core 23.
- the depth direction of each mounting through hole 28 coincides with the depth direction of the adjustment screw hole 27.
- the inner diameter of each mounting through hole 28 is smaller than the inner diameter of each adjustment screw hole 27.
- the mounting through hole 28 is arranged at a position connecting the bottom surface of the adjustment screw hole 27 and the outer surface of the fixed iron core 23. Furthermore, the adjustment screw hole 27 and the mounting through hole 28 are arranged coaxially.
- the hoisting machine main body 7 is provided with a plurality of fitting recesses (fitting portions) 29 into which the adjustment collar 17 is fitted, and a plurality of mounting screw holes 30 into which the mounting bolts 16 are screwed.
- the fitting recess 29 faces the opening of the adjustment screw hole 27.
- the fitting recess 29 has a circular cross-sectional shape.
- the fitting recess 29 is a reamer hole precisely formed by a reamer.
- the inner diameter of the mounting screw hole 30 is smaller than the inner diameter of the fitting recess 29.
- the depth direction of the fitting recess 29 and the mounting screw hole 30 coincides with the direction in which the movable body 18 is displaced.
- the fitting recess 29 and the mounting screw hole 30 are arranged coaxially. Therefore, the opening of the mounting screw hole 30 is formed on the bottom surface of the fitting recess 29.
- the adjustment collar 17 is disposed between the hoisting machine body 7 and the electromagnetic actuator 19.
- the adjustment collar 17 is a columnar member having an axis. Further, the adjustment collar 17 includes a screwing portion 31 having a screw portion 31 a provided on the outer peripheral portion, and a fitting column portion 32 protruding from the screwing portion 31 along the axis of the adjustment collar 17. Yes.
- the threaded portion 31 a of the threaded portion 31 is threadedly engaged with the threaded portion 27 a of the adjusting screw hole 27.
- the adjustment collar 17 is disposed coaxially with the adjustment screw hole 27 by screwing the screw portion 31a with the screw portion 27a.
- the cross-sectional shape of the end of the fitting cylinder portion 32 is set in accordance with the cross-sectional shape of the fitting recess 29.
- the end of the fitting column part 32 is fitted into the fitting recess 29 without a gap. That is, the fitting cylinder portion 32 and the fitting recess 29 are reamer-fitted.
- the adjustment collar 17 is arranged coaxially with the fitting recess 29 by fitting the fitting column portion 32 into the fitting recess 29.
- An engagement surface 32 a with which a tool for turning the adjustment collar 17 is engaged is formed on a part of the outer peripheral portion of the fitting column portion 32.
- the screwing amount of the adjustment collar 17 into the adjustment screw hole 27 is adjusted by turning the adjustment collar 17.
- the amount of protrusion of the adjustment collar 17 from the fixed iron core 23 can be adjusted by adjusting the screwing amount of the adjustment collar 17 with respect to the adjustment screw hole 27. Therefore, the position of the brake device main body 15 with respect to the brake drum 14 is changed in the direction in which the distance between the electromagnetic actuator 19 and the brake drum 14 changes (that is, movable) by adjusting the screwing amount of the adjustment collar 17 with respect to the adjustment screw hole 27. The direction in which the body 18 is displaced). The gap between the brake drum 14 and the friction piece 21 is adjusted by adjusting the position of the brake device body 15 with respect to the brake drum 14.
- a bolt through hole 33 passes through the center of the adjustment collar 17 along the axis of the adjustment collar 17.
- the bolt through hole 33 is arranged coaxially with the mounting through hole 28 by screwing the adjustment collar 17 into the adjustment screw hole 27. Further, the bolt through hole 33 is arranged coaxially with the mounting screw hole 30 by fitting the adjustment collar 17 into the fitting recess 29.
- the mounting bolt 16 At the end of the mounting bolt 16, there is provided a screw portion 16a that is screwed into the screw portion 30a of the mounting screw hole 30.
- the mounting bolt 16 is screwed into the mounting screw hole 30 by screwing the screw portion 16a and the screw portion 30a.
- the mounting bolt 16 is passed through the mounting through hole 28 and the bolt through hole 33 in this order, and is screwed into the mounting screw hole 30.
- the electromagnetic actuator 19 is attached to the hoisting machine body 7 when the mounting bolt 16 is screwed into the mounting screw hole 30 in a state where the adjustment collar 17 is fitted in the fitting recess 29. That is, the mounting bolt 16 attaches the electromagnetic actuator 19 to the hoisting machine body 7 in a state where the hoisting machine body 7 receives the adjustment collar 17.
- the position of the electromagnetic actuator 19 with respect to the hoisting machine body 7 is fixed by tightening the mounting bolt 16 screwed into the mounting screw hole 30.
- the adjustment collar 17 is pressed against the hoisting machine main body 7 by tightening the mounting bolts 16.
- the electromagnetic coil 25 When energization of the electromagnetic coil 25 is started, the electromagnetic coil 25 generates an electromagnetic attractive force that attracts the movable iron core 20. Thereby, the movable body 18 is displaced in a direction away from the brake drum 14 against the urging force of the urging spring 24. As a result, the braking force applied to the brake drum 14 and the drive sheave 8 is released.
- the mounting bolt 16 is loosened.
- a tool for example, a spanner
- the adjustment collar 17 is screwed into the adjustment screw hole 27 while the adjustment collar 17 is rotated by operating the tool. adjust.
- the position of the brake device main body 15 with respect to the brake drum 14 is adjusted, and the gap between the brake drum 14 and the friction piece 21 is adjusted.
- the mounting bolt 16 is tightened. Thereby, the position of the fixed iron core 23 is fixed with respect to the hoisting machine main body 7, and the adjustment work of the gap between the brake drum 14 and the friction piece 21 is completed.
- the adjusting collar 17 is screwed into an adjusting screw hole 27 provided in the electromagnetic actuator 19, and the hoisting machine body 7 receives the adjusting collar 17. Since the electromagnetic actuator 19 is attached to the hoisting machine main body 7 in the state, the adjustment of the gap between the brake drum 14 and the movable body 18 is steplessly adjusted by adjusting the screwing amount of the adjusting collar 17 with respect to the adjusting screw hole 27. (Ie continuously). As a result, the gap between the brake drum 14 and the movable body 18 can be adjusted more accurately, and for example, the adverse effects such as an increase in the required capacity of the electromagnetic coil 25 and an increase in the brake operation sound can be suppressed. Can do.
- the movable body 18 since there is no need to provide the movable body 18 with a mechanism for adjusting the gap between the brake drum 14 and the movable body 18, the movable body 18 can be reduced in size. Thereby, size reduction of the whole brake device 9 can be achieved.
- the adjustment collar 17 is provided with a bolt through hole 33, and the mounting bolt 16 passed through the bolt through hole 33 is screwed into the mounting screw hole 30 of the hoisting machine body, whereby the electromagnetic actuator 19 is provided.
- a part of the mounting bolt 16 can be disposed inside the adjustment collar 17, and the installation space for the adjustment collar 17 and the mounting bolt 16 can be reduced. .
- the size of the brake device 9 can be further reduced.
- the fastening force between the mounting bolt 16 and the hoisting machine body 7 can be applied on the axis of the adjusting collar 17, and the reliability of the mounting state of the electromagnetic actuator 19 by the mounting bolt 16 can be improved. it can.
- the adjustment collar 17 can be easily positioned with respect to the winding machine main body 7.
- the brake device main body 15 can be easily attached to a predetermined position of the main body 7.
- the adjustment collar 17 receives a reaction force of the braking force that brakes the rotation of the brake drum 14, the adjustment collar 17 can be held on the hoisting machine body 7 by the shearing force of the adjustment collar 17. . Therefore, the hoisting machine main body 7 is more in contact with the hoisting machine main body 7 than when the adjusting collar 17 and the hoisting machine main body 7 are merely in surface contact (that is, the adjusting collar 17 is frictionally held by the hoisting machine main body 7). The adjustment collar 17 can be held more reliably. Thereby, the burden of the mounting bolt 16 with respect to the reaction force of the braking force of the brake drum 14 can be reduced, and the size of the mounting bolt 16 can be reduced.
- FIG. FIG. 4 is a cross-sectional view of an essential part showing a brake device for an elevator hoist according to Embodiment 2 of the present invention.
- the adjustment collar 17 includes a screwing portion 31 screwed into the adjustment screw hole 27 and a fitting cylinder portion 32 protruding from the screwing portion 31 in opposite directions along the axis of the adjustment collar 17. And a guide cylinder 41.
- the configurations of the threaded portion 31 and the fitting cylindrical portion 32 are the same as those in the first embodiment.
- the fixed iron core 23 is provided with a guide fitting hole (guide portion) 42 having a circular cross section into which the guide column portion 41 fits without a gap.
- the guide fitting hole 42 is a reamer hole formed in the same manner as the fitting recess 29. Therefore, the guide column part 41 and the guide fitting hole 42 are reamer-fitted.
- the guide fitting hole 42 is arranged coaxially with the adjustment screw hole 27.
- the guide fitting hole 42 is a recess provided in the bottom surface of the adjustment screw hole 27.
- the inner diameter of the guide fitting hole 42 is smaller than the inner diameter of the adjustment screw hole 27, and the inner diameter of the mounting through hole 28 is smaller than the inner diameter of the guide fitting hole 42.
- the mounting through hole 28 is arranged at a position connecting the bottom surface of the guide fitting hole 42 and the outer surface of the fixed iron core 23.
- the adjustment collar 17 When the screwing amount of the adjustment collar 17 with respect to the adjustment screw hole 27 is adjusted, the adjustment collar 17 is displaced with respect to the fixed iron core 23 while the guide column portion 41 is guided to the guide fitting hole 42. . That is, the guide fitting hole 42 guides the adjustment collar 17 that is displaced with respect to the fixed iron core 23 in accordance with the adjustment of the screwing amount of the adjustment collar 17 with respect to the adjustment screw hole 27.
- Other configurations are the same as those in the first embodiment.
- FIG. 5 is a cross-sectional view of an essential part showing a brake device for an elevator hoist according to Embodiment 3 of the present invention.
- a pair of long holes mounting through holes
- Holes 51 and a pair of adjustment screw holes 52 that communicate the inside of each elongated hole 51 and the outside of the fixed iron core 23, respectively.
- each long hole 51 passes through the fixed iron core 23 in the direction along the axis of the rotary shaft 13.
- Each long hole 51 is provided in the fixed iron core 23 such that the major axis direction thereof coincides with the direction in which the movable body 18 is displaced (that is, the depth direction of the guide hole 26).
- the depth direction of the adjustment screw hole 52 coincides with the direction in which the movable body 18 is displaced (that is, the depth direction of the guide hole 26).
- the position of the adjustment screw hole 52 is close to the brake drum 14 when viewed from the elongated hole 51.
- a rod-shaped reamer bolt (attachment member) 53 as an attachment device for attaching the brake device main body 15 to the hoisting machine main body 7 is passed through the long hole 51.
- the short diameter of the long hole 51 is set according to the outer diameter of the reamer bolt 53.
- the reamer bolt 53 is fitted in the long hole 51 without a gap in the short diameter direction of the long hole 51.
- the position of the fixed iron core 23 with respect to the reamer bolt 53 can be adjusted within the range of the dimension of the long hole 51 in the long diameter direction of the long hole 51.
- the hoisting machine body 7 is provided with a mounting screw hole (not shown) into which the reamer bolt 53 is screwed.
- the depth direction of the mounting screw hole coincides with the direction along the axis of the rotating shaft 13. Therefore, the reamer bolt 53 is attached to the hoisting machine body 7 in parallel with the axis of the rotary shaft 13 by being screwed into the attachment screw hole.
- the electromagnetic actuator 19 is attached to the hoisting machine body 7 by attaching the reamer bolt 53 passed through the elongated hole 51 to the hoisting machine body 7. The position of the electromagnetic actuator 19 with respect to the hoisting machine body 7 is fixed by tightening the reamer bolt 53.
- a stopper bolt (adjustment member) 54 is screwed into the adjustment screw hole 52.
- the stopper bolt 54 is rotated in a state of being screwed into the adjustment screw hole 52, thereby being displaced with respect to the fixed iron core 23 in the depth direction of the adjustment screw hole 52, and capable of protruding into the elongated hole 51. It has become.
- the amount of protrusion of the stopper bolt 54 into the elongated hole 51 is adjusted by adjusting the amount of engagement of the stopper bolt 54 with the adjustment screw hole 52.
- the distance between the inner surface of the elongated hole 51 and the stopper bolt 54 changes in the major axis direction of the elongated hole 51 by adjusting the amount of protrusion of the stopper bolt 54 into the elongated hole 51.
- the position of the electromagnetic actuator 19 with respect to the hoisting machine body 7 can be adjusted within the range of the long hole 51 in the long diameter direction of the long hole 51.
- the stopper bolt 54 protrudes into the long hole 51 the displacement of the electromagnetic actuator 19 in the direction away from the brake drum 14 is restricted by the stopper bolt 54 hitting the reamer bolt 53. Therefore, in the state where the stopper bolt 54 protrudes into the long hole 51, the position of the electromagnetic actuator 19 relative to the hoisting machine body 7 is within the range between the inner surface of the long hole 51 and the stopper bolt 54, and the long diameter of the long hole 51. The direction can be adjusted.
- a lock nut 55 for fixing the position of the stopper bolt 54 with respect to the fixed iron core 23 is screwed to the stopper bolt 54.
- the position of the stopper bolt 54 with respect to the fixed iron core 23 is fixed by tightening the lock nut 55 in a state where the lock nut 55 is in contact with the outer surface of the fixed iron core 23.
- the adjusting device for adjusting the position of the brake device main body 15 with respect to the hoisting machine main body 7 includes a stopper bolt 54 and a lock nut 55. Other configurations are the same as those in the first embodiment.
- the procedure for adjusting the gap between the brake drum 14 and the friction piece 21 will be described.
- the reamer bolt 53 is loosened and the lock nut 55 is loosened.
- the stopper bolt 54 is turned in a direction in which the amount of protrusion into the elongated hole 51 decreases.
- the position of the electromagnetic actuator 19 with respect to the hoisting machine body 7 is adjusted while the electromagnetic actuator 19 is displaced along the elongated hole 51 with respect to the reamer bolt 53.
- the position of the brake device main body 15 with respect to the brake drum 14 is adjusted, and the gap between the brake drum 14 and the friction piece 21 is adjusted.
- the reamer bolt 53 is tightened. Thereby, the position of the electromagnetic actuator 19 with respect to the hoisting machine body 7 is fixed. Thereafter, the stopper bolt 54 is turned in a direction in which the amount of protrusion into the elongated hole 51 increases, and the stopper bolt 54 is applied to the reamer bolt 53. Thereafter, the loosened lock nut 55 is tightened. Thereby, the protrusion amount of the stopper bolt 54 into the elongated hole 51 is fixed, and the adjustment work of the gap between the brake drum 14 and the friction piece 21 is completed.
- the distance between the inner surface of the long hole 51 and the stopper bolt 54 is set to be the long diameter of the long hole 51 by adjusting the amount of protrusion of the stopper bolt 54 into the long hole 51.
- the displacement of the electromagnetic actuator 19 that changes in the direction and moves away from the brake drum 14 is regulated by the stopper bolt 54 coming into contact with the reamer bolt 53 passed through the elongated hole 51, so that the brake drum 14, the movable body 18,
- the gap can be adjusted steplessly by adjusting the protruding amount of the stopper bolt 54 into the elongated hole 51.
- the movable body 18 can be reduced in size. Thereby, size reduction of the whole brake device 9 can be achieved. Further, even when the electromagnetic actuator 19 is displaced in a direction away from the brake drum 14 from a predetermined adjustment position due to the looseness or breakage of the stopper bolt 54, the displacement of the electromagnetic actuator 19 relative to the reamer bolt 53 is reduced. It can be kept within the range of dimensions.
- the reaction force of the urging spring 24 when the movable body 18 is in contact with the brake drum 14 acts on the stopper bolt 54 as a compression force from the reamer bolt 53.
- the compressive strength of the member comprised with materials, such as a metal is larger than tensile strength. Therefore, by making the reaction force of the urging spring 24 act on the stopper bolt 54 as a compressive force, the stopper bolt 54 can be made difficult to break, and the mechanical reliability of the stopper bolt 54 can be improved. Thereby, the reliability of operation
- the depth direction of the long hole 51 is the direction along the rotation shaft 13. However, even if the long hole 51 is passed through the fixed iron core 23 in a direction inclined with respect to the rotation shaft 13. Good.
- the reamer bolt 53 is used as an attachment member that is passed through the long hole 51, but is not limited thereto.
- a rod-like pin attached to the hoisting machine body 7 may be used.
- the cross-sectional shape of the mounting member is not limited to a circle, and may be, for example, a rectangle or an ellipse.
- the position of the electromagnetic actuator 19 with respect to the hoisting machine body 7 is adjusted without using the stopper bolt 54.
- the stopper bolt 54 is used to adjust the position of the electromagnetic actuator 19 with respect to the hoisting machine body 7.
- the position may be adjusted. That is, the position of the electromagnetic actuator 19 relative to the hoisting machine body 7 may be adjusted by adjusting the screwing amount of the stopper bolt 54 with respect to the adjusting screw hole 52 while the stopper bolt 54 is applied to the reamer bolt 53.
- the bolt through hole 33 through which the mounting bolt 16 is passed is provided in the adjustment collar 17.
- the bolt through hole 33 may not be provided.
- the adjustment screw hole 27 and the attachment through hole 28 are provided separately from each other in the fixed iron core 23. Accordingly, the mounting bolt 16 is passed through the mounting through hole 28 at a position away from the adjustment collar 17 and is screwed into the mounting screw hole 30 of the hoisting machine body 7.
- the fitting recess 29 into which the adjustment collar 17 is fitted is provided in the hoisting machine body 7, but the fitting recess 29 may not be provided. Even in this case, the gap between the brake drum 14 and the movable body 18 can be adjusted steplessly, and the overall size of the brake device 9 can be reduced.
- the fitting recess 29 is provided in the hoisting machine main body 7 as a fitting portion to be fitted to the adjustment collar 17.
- the adjustment collar 17 is provided with a recess, and the adjustment collar 17 You may provide in the winding machine main body 7 the protrusion which 17 recessed parts fit as a fitting part.
- Winding machine body 14 Brake drum (rotary body), 15 Brake device body, 16 Mounting bolt (Mounting device), 17 Adjustment collar, 18 Movable body, 19 Electromagnetic actuator, 27 Adjustment screw hole, 29 For fitting Recess (fitting part), 30 mounting screw hole, 33 bolt through hole, 42 guiding fitting hole (guide part), 51 long hole, 52 adjusting screw hole, 53 reamer bolt (mounting member), 54 stopper bolt ( Adjustment member).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Braking Arrangements (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
Description
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内には、かご2及び釣合おもり3が昇降可能に配置されている。昇降路1の上部には、機械室4が設けられている。機械室4には、かご2及び釣合おもり3を昇降路1内で昇降させる駆動力を発生する巻上機5と、そらせ車6とが設けられている。
図4は、この発明の実施の形態2によるエレベータ用巻上機のブレーキ装置を示す要部断面図である。図において、調整用カラー17は、調整用ねじ穴27に螺合される螺合部31と、調整用カラー17の軸線に沿って互いに反対方向へ螺合部31から突出する嵌合用円柱部32及び案内用円柱部41とを有している。螺合部31及び嵌合用円柱部32の構成は実施の形態1と同様である。
図5は、この発明の実施の形態3によるエレベータ用巻上機のブレーキ装置を示す要部断面図である。図において、固定鉄心23の両端部には、可動体18が変位される方向(ガイド穴26の深さ方向)に対して交差する方向へ固定鉄心23を貫通する一対の長穴(取付用貫通穴)51と、各長穴51内と固定鉄心23外とをそれぞれ連通する一対の調整用ねじ穴52とが設けられている。この例では、回転軸13の軸線に沿った方向へ各長穴51が固定鉄心23を貫通している。
Claims (5)
- 巻上機本体に対して回転される回転体、
可動体と、上記巻上機本体に取り付けられるとともに調整用ねじ穴が設けられ、上記回転体に接離する方向へ上記可動体を変位させる電磁アクチュエータとを有するブレーキ装置本体、
上記調整用ねじ穴に螺合されるとともに、上記巻上機本体と上記電磁アクチュエータとの間に配置される調整用カラー、及び
上記巻上機本体が上記調整用カラーを受けている状態で上記電磁アクチュエータを上記巻上機本体に取り付ける取付装置
を備え、
上記巻上機本体に対する上記ブレーキ装置本体の位置は、上記調整用ねじ穴に対する上記調整用カラーの螺合量の調整により、上記電磁アクチュエータと上記回転体との距離が変化する方向へ調整されることを特徴とするエレベータ用巻上機のブレーキ装置。 - 上記取付装置は、上記巻上機本体に設けられた取付用ねじ穴に螺合される取付用ボルトを有し、
上記調整用カラーには、上記取付用ボルトが通されるボルト通し穴が設けられており、
上記電磁アクチュエータは、上記ボルト通し穴に通された上記取付用ボルトが上記取付用ねじ穴に螺合されることにより上記巻上機本体に取り付けられることを特徴とする請求項1に記載のエレベータ用巻上機のブレーキ装置。 - 上記巻上機本体には、上記調整用カラーが嵌る嵌合部が設けられ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巻上機のブレーキ装置。
- 上記電磁アクチュエータには、上記調整用ねじ穴に対する上記調整用カラーの螺合量の調整に伴って上記電磁アクチュエータに対して変位される上記調整用カラーを案内する案内部が設けられ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巻上機のブレーキ装置。
- 巻上機本体に対して回転される回転体、
可動体と、上記巻上機本体に取り付けられ、上記回転体に接離する方向へ上記可動体を変位させる電磁アクチュエータとを有し、上記可動体の変位方向に対して交差する方向へ上記電磁アクチュエータを貫通する長穴が上記長穴の長径方向を上記可動体の変位方向と一致させて上記電磁アクチュエータに設けられたブレーキ装置本体、
棒状の取付部材を有し、上記長穴に通された上記取付部材を上記巻上機本体に取り付けることにより、上記巻上機本体に上記電磁アクチュエータを取り付ける取付装置、及び
上記長穴内と上記電磁アクチュエータ外とを連通する調整用ねじ穴に螺合される調整部材を有し、上記長穴内への上記調整部材の突出量の調整により、上記長穴の内面と上記調整部材との距離を上記長穴の長径方向について変化させる調整装置
を備え、
上記回転体から離れる方向への上記電磁アクチュエータの変位は、上記調整部材が上記取付部材に当たることにより規制されることを特徴とするエレベータ用巻上機のブレーキ装置。
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KR1020127020348A KR101361367B1 (ko) | 2010-02-10 | 2010-02-10 | 엘리베이터용 권상기의 브레이크 장치 |
CN201080063479.3A CN102753469B (zh) | 2010-02-10 | 2010-02-10 | 电梯用曳引机的制动装置 |
PCT/JP2010/051965 WO2011099123A1 (ja) | 2010-02-10 | 2010-02-10 | エレベータ用巻上機のブレーキ装置 |
US13/513,996 US9016439B2 (en) | 2010-02-10 | 2010-02-10 | Elevator hoisting machine braking apparatus |
EP10845724.3A EP2535306B1 (en) | 2010-02-10 | 2010-02-10 | Brake device for hoist for elevator |
JP2011553676A JP5490154B2 (ja) | 2010-02-10 | 2010-02-10 | エレベータ用巻上機のブレーキ装置 |
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JP7433371B2 (ja) | 2022-07-06 | 2024-02-19 | 三菱電機ビルソリューションズ株式会社 | 巻上機ブレーキ装置 |
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FI125889B (fi) * | 2012-08-24 | 2016-03-31 | Kone Corp | Jarru ja hissijärjestelmä |
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US20120234632A1 (en) | 2012-09-20 |
US9016439B2 (en) | 2015-04-28 |
EP2535306B1 (en) | 2019-01-09 |
JP5490154B2 (ja) | 2014-05-14 |
EP2535306A1 (en) | 2012-12-19 |
CN102753469A (zh) | 2012-10-24 |
CN102753469B (zh) | 2015-04-01 |
KR101361367B1 (ko) | 2014-02-10 |
JPWO2011099123A1 (ja) | 2013-06-13 |
KR20120102804A (ko) | 2012-09-18 |
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