CN103052583A - Elevator speed governor - Google Patents
Elevator speed governor Download PDFInfo
- Publication number
- CN103052583A CN103052583A CN2010800684612A CN201080068461A CN103052583A CN 103052583 A CN103052583 A CN 103052583A CN 2010800684612 A CN2010800684612 A CN 2010800684612A CN 201080068461 A CN201080068461 A CN 201080068461A CN 103052583 A CN103052583 A CN 103052583A
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- China
- Prior art keywords
- governor sheave
- supervelocity
- rotation
- speed
- swivel
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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
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
In the present invention, when a speed governor sheave is rotated, rotational force in the same direction as the speed governor sheave is applied to a rotating body by means of a rotational force transmission device. An excess speed detection switch that is displaced together with a switch attachment member is displaceable between a first set position that is operated by an actuating piece when the speed of an elevator car reaches a first excess speed and a second set position that is operated by an actuating piece when the speed of the elevator car reaches a second excess speed that is higher than the first excess speed. A ratchet is displaceable in the axial direction of a main shaft between an engageable position that can engage an engagement claw and an engagement-avoidance position that avoids engagement with the engagement claw. The switch attachment member and the rotating body are interlocked by a first interlocking device, and the ratchet and the rotating body are interlocked by a second interlocking device. As a result, the excess speed detection switch is displaced between the first set position and the second set position in accordance with the direction of rotation of the rotating body, and the ratchet is displaced between the engageable position and the engagement-avoidance position in accordance with the direction of rotation of the rotating body.
Description
Technical field
The present invention relates to speed limiter for elevator, this speed limiter for elevator has the governor sheave that rotates along with the movement of car.
Background technology
In the past, the setting supervelocity when descending for the setting supervelocity of car when rising is higher than proposed to have the speed-limit device that utilizes arrangement of clutch to connect and remove the elevator of two transmission of powers between the speed limiting mechanism.The setting supervelocity of a speed limiting mechanism is higher than the setting supervelocity of another speed limiting mechanism.When car rose, another speed limiting mechanism disconnected from a speed limiting mechanism by arrangement of clutch, only had a higher speed limiting mechanism of the supervelocity of setting to play a role.When cage descending, each speed limiting mechanism interconnects by arrangement of clutch, and each speed limiting mechanism plays a role respectively.When thus, the setting supervelocity of speed-limit device rises than car when cage descending low (with reference to patent documentation 1).
In addition, in the past, also known had a gradual safety device, and it utilizes the power supply control to electromagnetic actuator that stop part is broken away from from the guiding bolt, elastic force by Compress Spring moves the guiding bolt thus, brake shoe is pressed on the guide rail and produces braking force (with reference to patent documentation 2).
In addition, in the past, also known had a speed limiter for elevator, and it is provided with at rope sheave: permanent magnet; Dynamo generator, its for generation of with the corresponding electric power of the hand of rotation of rope sheave; And electromagnet, it makes pole change according to the electric power from dynamo generator, when reversing, rope sheave make electromagnet attract permanent magnet to limit the rotation that flies to put, make electromagnet repel permanent magnet when the rope sheave forward and remove flying the moving restriction of rotation, the setting supervelocity when car is risen is higher than the setting supervelocity (referring to Patent Document 3) when descending.
The prior art document
Patent documentation
Patent documentation 1: No. 4306014 communique of Japan's special permission
Patent documentation 2: TOHKEMY 2006-347771 communique
Patent documentation 3: TOHKEMY 2009-154984 communique
Summary of the invention
The problem that invention will solve
But, in the speed-limit device of the elevator shown in the patent documentation 1, owing to need two speed limiting mechanisms, therefore make the whole maximization of device.
In addition, in the gradual safety device shown in the patent documentation 2, when having a power failure, can't power to electromagnetic actuator, device is moved.Thus, the reliability of the action of device reduces.
In addition, in the speed limiter for elevator shown in the patent documentation 3, might produce the disconnection fault of dynamo generator and electromagnet etc., the reliability of the action of device reduces.In addition, for the reliability of the action that improves device, also consider the monitor unit that is provided for monitoring disconnection fault etc., but can make device complicated this moment.
The present invention finishes in order to solve problem as described above, and its purpose is to obtain a kind of speed limiter for elevator, and it can suppress to maximize, and can move more reliably.
Be used for solving the means of problem
Speed limiter for elevator of the present invention possesses: supporting mass, and it is provided with main shaft; Governor sheave, it is around hanging with the mobile overspeed governor of car, and this governor sheave rotates centered by main shaft along with the movement of car; Fly pendulum, it is arranged at governor sheave, and the centnifugal force that produces according to the rotation by governor sheave rotates with respect to governor sheave; Starting element, it is arranged at and flies pendulum, and the rotation by the direction that increases to the rotative speed of governor sheave that flies to put, and with respect to the radial outside displacement of governor sheave to governor sheave; The engaging pawl, it is arranged at and flies pendulum, and the rotation by the direction that increases to the rotative speed of governor sheave that flies to put, and to the radially inner side displacement of governor sheave; Swivel, it is independent of the freely rotation centered by main shaft of governor sheave ground; The rotational force transfer device, by the rotation of governor sheave, the rotational force transfer device applies and the rotational force of governor sheave to the equidirectional rotation swivel; Switch installation portion material, it is arranged on supporting mass in the mode that can be shifted; The 1st linkage, it makes swivel and the interlock of switch installation portion material, and makes described switch installation portion material displacement according to the hand of rotation of swivel; The supervelocity detector switch, it is shifted with switch installation portion material, and the supervelocity detector switch is started by the operation of starting element; Restraint device, its scope to the displacement of supervelocity detector switch limits, so that the supervelocity detector switch is shifted between the 1st desired location and the 2nd desired location, the 1st desired location is the position that is operated by starting element during for predetermined the 1st supervelocity when the speed of car, and the 2nd desired location is that the speed when car is the position that is operated by starting element during than high the 2nd supervelocity of the 1st supervelocity; Ratchet, but it can be shifted between clamped position and engaging avoidance position along the axis direction of main shaft, and by with the engaging pawl engaging and centered by main shaft to the direction rotation identical with governor sheave, but clamped position is when the speed of car ratchet and the position that engage the pawl engaging for than the high emergent stopping supervelocity of the 2nd supervelocity the time, engages the avoidance position and is ratchet and leave governor sheave and avoid and the position that engages the engaging between the pawl; The 2nd linkage, it makes swivel and ratchet gearing, but and make ratchet according to the hand of rotation of swivel and avoid in clamped position and engaging and to be shifted between the position; And grasping device, overspeed governor is controlled in its rotation by ratchet.
The effect of invention
In speed limiter for elevator of the present invention, to be applied to swivel to the rotational force that equidirectional rotates with governor sheave by the rotational force transfer device, the supervelocity detector switch utilizes the 1st linkage and swivel interlock, ratchet utilizes the interlock of the 2nd linkage and swivel and along the axis direction displacement of main shaft, therefore do not need to arrange a plurality of velocity limiters, can suppress the maximization of velocity limiter integral body.In addition, do not use the electric speed detection sensor to detect different supervelocities during direction with for lower direction the time on just can being at the moving direction of car.In addition, do not carry out to the electric power supply of velocity limiter velocity limiter being moved.Therefore, can prevent because the situation that the velocity limiter that causes such as have a power failure or broken string etc. can't move can make velocity limiter move more reliably.
Description of drawings
Fig. 1 is the constructional drawing that the lift appliance of embodiments of the present invention 1 is shown.
Fig. 2 is the front view that the velocity limiter of Fig. 1 is shown.
Fig. 3 is the sectional view that the velocity limiter of Fig. 2 is shown.
Fig. 4 illustrates the swivel of Fig. 2 and the front view of rotational force transfer device.
Fig. 5 illustrates the swivel of Fig. 3 and the sectional view of rotational force transfer device.
Fig. 6 is the front view of the velocity limiter the when cage descending of Fig. 1 is shown.
Fig. 7 is the front view of main portion that the velocity limiter of Fig. 6 is shown.
Fig. 8 is the sectional view that the velocity limiter of Fig. 6 is shown.
Fig. 9 is the front view of control lever that Fig. 6 the is shown velocity limiter when being operated by starting element.
Figure 10 is the front view of engaging pawl that Fig. 6 the is shown velocity limiter when being sticked in the peripheral part of ratchet.
Figure 11 is the front view of brake shoe that Fig. 2 the is shown velocity limiter when being positioned at the releasing position.
Figure 12 is the front view that brake shoe that Figure 11 is shown is positioned at the velocity limiter when controlling the position.
Figure 13 is the front view of car that Fig. 1 the is shown velocity limiter when rising.
Figure 14 is the front view of main portion that the velocity limiter of Figure 13 is shown.
Figure 15 is the sectional view that the velocity limiter of Figure 13 is shown.
Figure 16 is the birds-eye view of supervelocity detector switch that the speed limiter for elevator of embodiments of the present invention 2 the is shown state when being positioned at low supervelocity desired location.
Figure 17 is the birds-eye view of supervelocity detector switch that the speed limiter for elevator of Figure 16 the is shown state when being positioned at superb Speed Setting position.
The specific embodiment
Below, with reference to accompanying drawing preferred implementation of the present invention is described.
Embodiment 1
Fig. 1 is the constructional drawing that the lift appliance of embodiments of the present invention 1 is shown.In the drawings, the top in hoistway 1 is provided with towing machine (actuating device) 4 and diversion sheave 5, and towing machine 4 is for generation of making the mobile along the vertical direction propulsive effort of car 2 and counterweight 3.Towing machine 4 has tractor main body 6 and drives rope sheave 7, and tractor main body 6 comprises electrical motor, drives rope sheave 7 and is arranged at tractor main body 6, and it rotates by the propulsive effort of tractor main body 6.Diversion sheave 5 is configured to leave driving rope sheave 7.
Driving rope sheave 7 and diversion sheave 5 around hanging with suspension member 8, suspension member 8 is used for suspension craning cab 2 and counterweight 3.Such as using rope or belt conveyor etc. to be used as suspension member 8.Car 2 and counterweight 3 are mobile along the vertical direction in hoistway 1 by the rotation that drives rope sheave 7.Interior when mobile at hoistway 1 when car 2 and counterweight 3, car 2 is by car guide rail (not shown) guiding, and counterweight 3 is guided by counter weight guide track (not shown).
Be provided with mechanical emergency braking device 9 in the bottom of car 2, it is used for stoping falling of car 2.Be provided with motion arm 10 at emergency braking device 9.Emergency braking device 9 is controlled car guide rail by the operation of motion arm 10.Control to stop falling of car 2 by 9 pairs of car guide rails of emergency braking device.
Top in hoistway 1 is provided with velocity limiter 11, and the bottom in hoistway 1 is provided with tension wheel 12.Between velocity limiter 11 and tension wheel 12 around hanging with overspeed governor 13.One end of overspeed governor 13 and the other end are connected with motion arm 10.Thus, tensioning is circlewise between velocity limiter 11 and tension wheel 12 for overspeed governor 13.Overspeed governor 13 is mobile with car 2.
Fig. 2 is the front view that the velocity limiter 11 of Fig. 1 is shown.In addition, Fig. 3 is the sectional view that the velocity limiter 11 of Fig. 2 is shown.In the drawings, the velocity limiter seat 14 in being fixed in hoistway 1 is fixed with housing (supporting mass) 15.Be fixed with main shaft 16 at housing 15 on even keels.At main shaft 16, be provided with governor sheave 17 in rotation mode freely, governor sheave 17 is around hanging with overspeed governor 13.Governor sheave 17 comes rotation centered by main shaft 16 according to the movement (that is, the movement of car 2) of overspeed governor 13.That is, governor sheave 17 rotates to forward (clockwise direction of Fig. 2) by the movement upward (rising) of car 2, and rotates to reverse (anticlockwise direction of Fig. 2) by the movement downwards (decline) of car 2.In addition, the rotative speed of governor sheave 17 is the speed corresponding with the moving velocity of car 2.
As shown in Figure 3, housing 15 has base plate 15c and a pair of back plate 15a, 15b, and a pair of back plate 15a, 15b are mutually opposed at the axis direction of main shaft 16, and base plate 15c is horizontally fixed between the bottom of each back plate 15a, 15b, and is installed on velocity limiter seat 14.Be fixed with an end of main shaft 16 at a back plate 15a, be fixed with the other end of main shaft 16 at another back plate 15b.
As shown in Figure 2, be provided with a pair of balance staff 18 parallel with the axis of main shaft 16 at governor sheave 17.Each balance staff 18 is configured in the position about the axis symmetry of main shaft 16.Be equipped with in freely the mode of rotating respectively at each balance staff 18 and fly to put 19.That is, be provided with at governor sheave 17 and a pair ofly fly to put 19, this is a pair of to fly to put 19 and rotates freely centered by a pair of balance staff 18 respectively.
According to the centnifugal force that the rotation by governor sheave 17 produces, respectively fly to put 19 and centered by balance staff 18, rotate with respect to governor sheave 17.That is, respectively flying to put 19 rotative speeds according to governor sheave 17 rotates with respect to governor sheave 17.
As shown in Figure 2, one flies to put an end of 19 and another and flies to put the other end of 19 and mutually link via connecting rod 20.In addition, between a boss portion that flies to put the other end of 19 and governor sheave 17, be provided with balance spring 21 for the opposing centnifugal force.When the rotative speed of governor sheave 17 increases, respectively fly to put the elastic force of 19 opposing balance springs 21 and rotate respectively with respect to governor sheave 17.
Fly to put an end of 19 at one and be provided with starting element 22, its radial outside to governor sheave 17 is outstanding.By flying to put the rotation of 19 directions that increase to the rotative speed of governor sheave 17, starting element 22 is with respect to the radial outside displacement of governor sheave 17 to governor sheave 17, by flying to put the rotation of 19 directions that reduce to the rotative speed of governor sheave 17, starting element 22 is with respect to the radially inner side displacement of governor sheave 17 to governor sheave 17.Thus, the track of the starting element 22 during governor sheave 17 rotation moves to the radial outside of governor sheave 17 along with the increase of the rotative speed of governor sheave 17 (, the increase of the moving velocity of car 2).
End with tabular switch installation portion material 23 of predetermined length is installed on housing 15 via pin 24.Pin 24 is configured to parallel with the axis of main shaft 16.Switch installation portion material 23 rotates freely centered by pin 24.That is, switch installation portion material 23 being set to can be with respect to housing 15 displacement.
The other end at switch installation portion material 23 is equipped with supervelocity detector switch 25.Therefore, supervelocity detector switch 25 is shifted with respect to housing 15 with switch installation portion material 23.In addition, by the rotation of switch installation portion material 23 with respect to housing 15, supervelocity detector switch 25 is along the direction displacement of the change of distance between itself and the main shaft 16.
Be provided with restraint device 28 at housing 15, restraint device 28 is used for the scope of the displacement of restriction supervelocity detector switch 25.Restraint device 28 has the 1st stop part 29 and the 2nd stop part 30, the 1st stop part 29 is used for restriction supervelocity detector switch 25 to the displacement near the direction of main shaft 16, and the 2nd stop part 30 is used for restriction supervelocity detector switch 25 to the displacement away from the direction of main shaft 16.
The 1st stop part 29 is fixed on than the position of switch installation portion material 23 near main shaft 16, and the 2nd stop part 30 is fixed on than the position of switch installation portion material 23 away from main shaft 16.By switch installation portion material 23 and the 1st stop part 29 butts, limit supervelocity detector switch 25 to the displacement near the direction of main shaft 16, by switch installation portion material 23 and the 2nd stop part 30 butts, limit supervelocity detector switch 25 to the displacement away from the direction of main shaft 16.
By switch installation portion material 23 and the 1st stop part 29 butts, supervelocity detector switch 25 becomes predetermined low supervelocity desired location (the 1st desired location) with respect to the position of main shaft 16, by switch installation portion material 23 and the 2nd stop part 30 butts, supervelocity detector switch 25 becomes than the superb Speed Setting position (2nd desired location) of low supervelocity desired location away from main shaft 16 with respect to the position of main shaft 16.That is, by restraint device 28 scope of the displacement of supervelocity detector switch 25 is limited in scope between low supervelocity desired location and the superb Speed Setting position.
When supervelocity detector switch 25 is positioned at low supervelocity desired location, on the track A of the starting element 22 of the speed that the terminal part of control lever 27 is configured in car 2 during for predetermined the 1st supervelocity V1.Therefore, when supervelocity detector switch 25 was positioned at low supervelocity desired location, because the speed of car 2 becomes the 1st supervelocity V1, thereby control lever 27 was operated by starting element 22.
When supervelocity detector switch 25 is positioned at superb Speed Setting position, on the track B of the starting element 22 of the speed that the terminal part of control lever 27 is configured in car 2 for than high the 2nd supervelocity V2 of the 1st supervelocity V1 the time.Therefore, when supervelocity detector switch 25 was positioned at superb Speed Setting position, because the speed of car 2 becomes the 2nd supervelocity V2 higher than the 1st supervelocity V1, thereby control lever 27 was operated by starting element 22.
Be provided with engaging pawl 31 in another the other end that flies to put 19, its radially inner side to governor sheave 17 is outstanding.Therefore, by flying to put the rotation of 19 directions that increase to the rotative speed of governor sheave 17, engaging pawl 31 is with respect to the radially inner side displacement of governor sheave 17 to governor sheave 17, by flying to put the rotation of 19 directions that reduce to the rotative speed of governor sheave 17, engaging pawl 31 is with respect to the radial outside displacement of governor sheave 17 to governor sheave 17.Thus, the track of the engaging pawl 31 during governor sheave 17 rotation moves to the radially inner side of governor sheave 17 along with the increase of the rotative speed of governor sheave 17 (, the increase of the moving velocity of car 2).
At main shaft 16, separate to be provided with ratchet 32 with governor sheave 17.Ratchet 32 rotates freely centered by main shaft 16.In addition, as shown in Figure 3, but ratchet 32 can be shifted between the engaging avoidance position away from governor sheave 17 at predetermined clamped position and Bi Ke clamped position along the axis direction of main shaft 16.
As shown in Figure 2, be provided with a plurality of teeth at the peripheral part of ratchet 32, these teeth only the hand of rotation of governor sheave 17 when being reverse (, when car 2 downward directions move) can with engage pawl 31 engagings.
When but ratchet 32 is positioned at clamped position, when car 2 downward directions move, if the speed of car 2 becomes the emergent stopping supervelocity V3 higher than the 2nd supervelocity V2, then the tooth of ratchet 32 with engage pawl 31 engaging.When ratchet 32 was positioned at engaging avoidance position, the position of ratchet 32 broke away from the scope of the displacement of engaging pawl 31, with the tooth of avoiding ratchet 32 and the engaging that engages between the pawl 31.Governor sheave 17 during to retrograde rotation (, when car 2 descends), engaging pawl 31 engages with the tooth of ratchet 32, and ratchet 32 and governor sheave 17 rotate to equidirectional thus.
Be provided with grasping device 33 at velocity limiter seat 14, grasping device 33 is controlled overspeed governor 13 by ratchet 32 to reverse (anticlockwise direction of Fig. 2) rotation.As shown in Figure 2, grasping device 33 is configured in the below of ratchet 32.
Grasping device 33 has: pressing plate (support) 34, and it is fixed in velocity limiter seat 14; Telescopic boom 36, one end thereof is installed on the pin 35 of velocity limiter seat 14 in the mode that can rotate, and this telescopic boom 36 can stretch; Brake shoe (movable part) 37, it is installed on the other end of telescopic boom 36 in the mode that can rotate, and comes approaching and leaving the direction displacement of pressing plate 34 by the rotation of telescopic boom 36; And bear down on one with spring 38, it is arranged at telescopic boom 36, and for generation of elasticity repulsive force, this elasticity repulsive force opposing is towards the power of the direction that telescopic boom 36 is shortened.
By the rotation of telescopic boom 36, brake shoe 37 can be shifted controlling between position and the releasing position, is controlling the position, and overspeed governor 13 is by being held between brake shoe 37 and the pressing plate 34; In the releasing position, brake shoe 37 leaves pressing plate 34, to remove controlling overspeed governor 13.When brake shoe 37 is positioned at when controlling the position, telescopic boom 36 shrinks, and utilizes the elasticity repulsive force that bears down on one with spring 38, and brake shoe 37 is pressed on pressing plate 34 via overspeed governor 13.
Linking in the mode that can rotate at telescopic boom 36 has cramp bar 39.Be fixed with maintenance pin 40 in the side of ratchet 32, the upper end hooking of cramp bar 39 is in keeping pin 40.By cramp bar 39 hookings are sold 40 in maintenance, brake shoe 37 is remained on the releasing position.
Engaging pawl 31 engage with the tooth of ratchet 32, and ratchet 32 and governor sheave 17 be to the equidirectional rotation, and cramp bar 39 is from keeping selling 40 disengagings thus.By making cramp bar 39 from keeping pin 40 to break away from, brake shoe 37 utilizes deadweight to be displaced to and controls the position.In addition, between cramp bar 39 and velocity limiter seat 14, be provided with and reel spring 41, to prevent such as throwing off (misoperation) because vibration etc. cause cramp bar 39 to sell 40 from maintenance mistakenly.
At main shaft 16, separate to be provided with discoideus swivel 42 with governor sheave 17 and ratchet 32.Swivel 42 rotates freely centered by main shaft 16.At the axis direction of main shaft 16, swivel 42 is configured in from governor sheave 17 and observes a side opposite with ratchet 32 sides.Be provided with rotational force transfer device 43 between swivel 42 and governor sheave 17, by governor sheave 17 rotations, 43 pairs of swiveies 42 of rotational force transfer device apply and the rotational force of governor sheave 17 to the equidirectional rotation.
Here, Fig. 4 illustrates the swivel 42 of Fig. 2 and the front view of rotational force transfer device 43.In addition, Fig. 5 illustrates the swivel 42 of Fig. 3 and the sectional view of rotational force transfer device 43.The face by swivel 42 sides at governor sheave 17 is fixed with fixed part 44 cylindraceous, and fixed part 44 is centered by the axis of main shaft 16.Rotational force transfer device 43 has metallic object 46 and a plurality of (being in this example 2) permanent magnet 45, permanent magnet 45 is fixed on the inside face of fixed part 44, metallic object 46 is fixed on the side of swivel 42, and metallic object 46 is configured in than the position of permanent magnet 45 by the radially inner side of governor sheave 17.
Each permanent magnet 45 disposes along the compartment of terrain that circumferentially is spaced from each other of fixed part 44.In addition, each permanent magnet 45 comes the circular orbit around metallic object 46 mobile by rotating with governor sheave 17 one.
When governor sheave 17 rotation, each permanent magnet 45 is mobile integratedly with governor sheave 17 around metallic object 46.When each permanent magnet 45 along the hand of rotation of governor sheave 17 when mobile around the metallic object 46, surface at metallic object 46 produces vortex flow, therefore according to the principle of Aragos'disk (Arago's disk), produce and the rotational force of governor sheave 17 to the equidirectional rotation at metallic object 46.Thus, swivel 42 is applied with and the rotational force of governor sheave 17 to the equidirectional rotation.That is, rotational force transfer device 43 will pass to swivel 42 in discontiguous mode from the rotational force that governor sheave 17 is subject to according to the hand of rotation of governor sheave 17.Thus, when being rotated in the forward, swivel 42 is subject to the rotational force to forward at governor sheave 17, and during to retrograde rotation, swivel 42 is subject to reverse rotational force at governor sheave 17.
Be provided with the connecting pin parallel with the axis of main shaft 16 47 in the side of swivel 42.As shown in Figure 2, the pars intermedia at switch installation portion material 23 is provided with the connecting pin parallel with the axis of main shaft 16 48.Linking between each connecting pin 47,48 has the 1st link rod part material 49, is used as the 1st linkage that swivel 42 and switch installation portion material 23 are linked.
One end of the 1st link rod part material 49 is installed on connecting pin 47 in the mode of rotating freely.Be provided with along the slotted hole 50 of the length direction of the 1st link rod part material 49 in the other end of the 1st link rod part material 49.The other end of the 1st link rod part material 49 is installed on connecting pin 48 in that connecting pin 48 is inserted in the mode that can slide under the state in the slotted hole 50.Thus, make swivel 42 and 23 interlocks of switch installation portion material.Thus, switch installation portion material 23 is shifted according to the hand of rotation of swivel 42.
By switch installation portion material 23 and the 1st stop part 29 butts, the movement of the connecting pin 47 when coming restricting rotation body 42 to rotate to reverse (anticlockwise direction of Fig. 2).In addition, by switch installation portion material 23 and the 2nd stop part 30 butts, the movement of the connecting pin 47 when coming restricting rotation body 42 to rotate to forward (clockwise direction of Fig. 2).By switch installation portion material 23 and the 1st stop part 29 butts, the position of connecting pin 47 is positioned at vertical the 1st predetermined limit positions away from switch installation portion material 23 than the axis that comprises main shaft 16, by switch installation portion material 23 and the 2nd stop part 30 butts, the position of connecting pin 47 is positioned at the 2nd predetermined limit positions than vertical approach switch installation portion material 23 of the axis that comprises main shaft 16.Therefore, the scope that moves by the rotation of swivel 42 of connecting pin 47 is restricted to the scope between the 1st limit positions and the 2nd limit positions.
Be respectively arranged with slotted hole 51 along above-below direction at each back plate 15a, 15b.Each slotted hole 51 is configured on vertical of the axis that comprises main shaft 16.Between each back plate 15a, 15b with the status level by each slotted hole 51 be provided with common connection shaft 52.Connection shaft 52 can slide in each slotted hole 51 along the vertical direction.
Between connecting pin 47 and connection shaft 52, link the 2nd link rod part material 53 is arranged.One end of the 2nd link rod part material 53 is installed on connecting pin 47 in the mode that can rotate.Connection shaft 52 is fixed in the other end of the 2nd link rod part material 53.Therefore, be shifted between the 1st limit positions and the 2nd limit positions by connecting pin 47, connection shaft 52 rotates centered by the axis of connection shaft 52.
At each back plate 15a, 15b, be fixed with respectively the projection 54 of the top that is configured in slotted hole 51.Between the both ends of connection shaft 52 and each projection 54, be connected with respectively and reel spring 55, reel spring 55 and be used for connection shaft 52 to direction (top) application of force near projection 54.Connecting pin 47 is subject to reeling the application of force of spring 55, and is stable to the maintenance of the connecting pin 47 that lays respectively at the 1st and the 2nd limit positions thus, prevented because the generation of the misoperation that causes such as the vibration grade.
Be fixed with the 1st cam 56 at connection shaft 52.The 1st cam 56 rotates centered by the axis of connection shaft 52 integratedly with connection shaft 52.
As shown in Figure 3, between ratchet 32 and governor sheave 17, be provided with ratchet with force application spring (force body) 57, ratchet with force application spring 57 along the axis of main shaft 16 to ratchet 32 to the direction application of force away from governor sheave 17.
As shown in Figure 3, be provided with the 2nd cam 58, the 2 cams 58 at the outer peripheral face of main shaft 16 and be subject to ratchet with the application of force of force application spring 57 with the state with the contacts side surfaces of ratchet 32.Observe from governor sheave 17, the 2nd cam 58 is configured in than the position of ratchet 32 away from governor sheave 17.In addition, the 2nd cam 58 can be to rotate centered by the axle radially of main shaft 16.
Dispose axle 59 between the 1st cam 56 and the 2nd cam 58, an end of axle 59 contacts with the 1st cam 56, and the other end of axle 59 contacts with the 2nd cam 58.Axle 59 is according to the rotation of the 1st cam 56 and along the vertical direction displacement.The 2nd cam 58 according to axle 59 displacement along the vertical direction rotate.But ratchet 32 is avoided between the position according to the rotation of the 2nd cam 58 and in clamped position and engaging and being shifted.
That is, ratchet 32 is via the 2nd link rod part material 53, connection shaft 52, the 1st cam 56, axle 59 and the 2nd cam 58 and swivel 42 interlocks.When swivel 42 rotation, hand of rotation according to swivel 42, order with the 2nd link rod part material 53, connection shaft 52, the 1st cam 56, axle 59 and the 2nd cam 58 is moved, thus, but ratchet 32 avoid between the position according to the hand of rotation of swivel 42 and in clamped position and engaging and being shifted.Thus, to being rotated in the forward, ratchet 32 is displaced to engaging and avoids the position by swivel 42, by swivel 42 to retrograde rotation, but ratchet 32 is displaced to clamped position.
In addition, the 2nd linkage 60 of swivel 42 and ratchet 32 interlocks is had: the 2nd link rod part material 53, connection shaft 52, the 1st cam 56, axle 59, the 2nd cam 58 and ratchet force application spring 57.In addition, velocity limiter 11 has: housing 15, governor sheave 17, fly to put 19, starting element 22, switch installation portion material 23, supervelocity detector switch 25, restraint device 28, engaging pawl 31, ratchet 32, grasping device 33, swivel 42, rotational force transfer device 43, the 1st link rod part material 49 and the 2nd linkage 60.
The action of the velocity limiter 11 when then, utilizing Fig. 6～Figure 12 that car 2 is descended describes.As shown in Figure 6, when car 2 descended, governor sheave 17 was according to the movement of overspeed governor 13, and the anticlockwise direction (reverse) to Fig. 6 centered by main shaft 16 rotates.Thus, respectively flying to put 19 is subject to and the corresponding centnifugal force of the rotative speed of governor sheave 17.
When respectively flying to put 19 centnifugal forces that are subject to and increase along with the increase of the moving velocity of car 2, respectively fly to put the elastic force of 19 opposing balance springs 21 and centered by balance staff 18, rotate.Thus, to the radial outside displacement of governor sheave 17, the swing-around trajectory radius of starting element 22 increases starting element 22 gradually gradually.
On the other hand, as shown in Figure 7, when governor sheave 17 during to retrograde rotation, each permanent magnet 45 also rotates to reverse (anticlockwise direction of Fig. 7) integratedly with governor sheave 17.At this moment, produce vortex flow on the surface of metallic object 46, according to the principle of Aragos'disk, produce and the rotational force of governor sheave 17 to the equidirectional rotation at metallic object 46.Thus, swivel 42 is subject to reverse rotational force.
As shown in Figure 7, when swivel 42 during to retrograde rotation, switch installation portion material 23 is by 49 pullings of the 1st link rod part material, and centered by pin 24 to supervelocity detector switch 25 is rotated near the direction of main shaft 16, thereby with the 1st stop part 29 butts.Thus, connecting pin 47 arrives the 1st limit positions, and swivel 42 stops to reverse rotation.In addition, supervelocity detector switch 25 arrives low supervelocity desired location.
In addition, as shown in Figure 7, when swivel 42 during to retrograde rotation, the 2nd link rod part material 53 and connection shaft 52 and the 1st cam 56 integratedly centered by connection shaft 52 clockwise direction to Fig. 7 rotate.Thus, as shown in Figure 8, axle 59 is by the 1st cam 56 jack-up, and the 2nd cam 58 is to ratchet 32 is rotated near the direction of governor sheave 17.Thus, ratchet 32 opposing ratchets are shifted to the direction near governor sheave 17 with the application of force of force application spring 57, but and arrival clamped position.
That is, when car 2 descended, the position of supervelocity detector switch 25 was low supervelocity desired location, but the position of ratchet 32 is clamped position.
When the position of supervelocity detector switch 25 is low supervelocity desired location, as shown in Figure 9, utilize at the mobile starting element 22 of track A to come control lever 27 is operated.When the speed of car 2 arrived the 1st supervelocity V1, starting element 22 was mobile at track A.Therefore, when car 2 descended, if the speed of car 2 arrives the 1st supervelocity V1, then control lever 27 was operated by starting element 22.When control lever 27 is operated by starting element 22, stop the power supply to towing machine 4, the brake equipment of towing machine 4 moves.
Such as when suspension member 8 fractures wait, even after towing machine 4 stops, the speed of car 2 still continues to increase, when the speed of car 2 arrives the emergent stopping supervelocity V3 higher than the 1st supervelocity V1, as shown in figure 10, engaging pawl 31 is fastened on the peripheral part of ratchet 32.Thus, ratchet 32 rotates to equidirectional with governor sheave 17, and cramp bar 39 is from keeping pin 40 to break away from.Thus, brake shoe 37 utilizes deadweight to be displaced to the position of controlling shown in Figure 12 from the releasing position shown in Figure 11.Thus, overspeed governor 13 quilts are being held between pressing plate 34 and the brake shoe 37, and the movement of overspeed governor 13 stops.
The action of the velocity limiter 11 when then, utilizing Figure 13～Figure 15 that car 2 is risen describes.As shown in figure 13, when car 2 rose, governor sheave 17 was according to the movement of overspeed governor 13, and the clockwise direction (forward) to Figure 13 centered by main shaft 16 rotates.At this moment, owing to respectively fly to put 19 and be subject to and the corresponding centnifugal force of the rotative speed of governor sheave 17, therefore, along with the increase of the moving velocity of car 2, starting element 22 is gradually to the radial outside displacement of governor sheave 17.
On the other hand, as shown in figure 14, when governor sheave 17 when being rotated in the forward, each permanent magnet 45 also rotates to forward (clockwise direction of Figure 14) integratedly with governor sheave 17.At this moment, produce vortex flow on the surface of metallic object 46, according to the principle of Aragos'disk, produce and the rotational force of governor sheave 17 to the equidirectional rotation at metallic object 46.Thus, swivel 42 is subject to the rotational force to forward.
As shown in figure 14, when swivel 42 when being rotated in the forward, switch installation portion material 23 is pressed by the 1st link rod part material 49, and centered by pin 24 to supervelocity detector switch 25 is rotated away from the direction of main shaft 16, thereby with the 2nd stop part 30 butts.Thus, connecting pin 47 arrives the 2nd limit positions, and swivel 42 stops to the rotation of forward.In addition, supervelocity detector switch 25 arrives superb Speed Setting position.
In addition, as shown in figure 14, when swivel 42 when being rotated in the forward, the 2nd link rod part material 53 and connection shaft 52 and the 1st cam 56 integratedly centered by connection shaft 52 anticlockwise direction to Figure 14 rotate.Thus, as shown in figure 15, axle 59 is shifted downwards, and the 2nd cam 58 rotates to the clockwise direction of Figure 15.Thus, ratchet 32 is owing to ratchet is shifted with the application of force of force application spring 57 and to the direction away from governor sheave 17, and arrival engaging avoidance position.
That is, when car 2 rose, the position of supervelocity detector switch 25 was superb Speed Setting position, and the position is avoided for engaging in the position of ratchet 32.
When the position of supervelocity detector switch 25 is superb Speed Setting position, utilize at the mobile starting element 22 of track B to come control lever 27 is operated.When the speed of car 2 arrived the 2nd supervelocity V2 higher than the 1st supervelocity V1, starting element 22 was mobile at track B.Therefore, when car 2 rose, if the speed of car 2 arrives the 2nd supervelocity V2, then control lever 27 was operated by starting element 22.When control lever 27 is operated by starting element 22, stop the power supply to towing machine 4, the brake equipment of towing machine 4 moves.
In addition, as shown in figure 15, when the position was avoided for engaging in the position of ratchet 32, the position of ratchet 32 broke away from from the scope of engaging pawl 31 displacements, and engaging pawl 31 does not engage with ratchet 32, and grasping device 33 does not move.
In such speed limiter for elevator, to be applied to swivel 42 to the rotational force that equidirectional rotates with governor sheave 17 by rotational force transfer device 43, supervelocity detector switch 25 utilizes the 1st link rod part material 49 and swivel 42 interlocks, thereby ratchet 32 utilizes the 2nd linkage 60 and the axis direction displacement of swivel 42 interlocks along main shaft 16, therefore do not need to arrange a plurality of velocity limiters, can suppress the maximization of velocity limiter integral body.In addition, do not use electric speed detection sensor (such as coder etc.) to detect different supervelocities during direction with for lower direction the time on just can being at the moving direction of car 2.In addition, do not carry out to the electric power supply of velocity limiter 11 velocity limiter 11 being moved.Therefore, can prevent because the situation that the velocity limiter 11 that causes such as have a power failure or broken string etc. can't move.Thus, velocity limiter 11 is moved.
In addition, rotational force transfer device 43 has permanent magnet 45 and metallic object 46, permanent magnet 45 rotates integratedly with governor sheave 17, metallic object 46 via predetermined gap and permanent magnet 45 opposed and with the rotation of swivel 42 one, therefore can come rotational force to swivel 42 applies and governor sheave 17 rotates to equidirectional by simple structure.Thus, can realize the miniaturization of velocity limiter 11.
In embodiment 1, the direction displacement that the distance between supervelocity detector switch 25 edges and the main shaft 16 changes, but also can be that supervelocity detector switch 25 is along the axis direction displacement of main shaft 16.
That is, Figure 16 is the birds-eye view of supervelocity detector switch that the speed limiter for elevator of embodiments of the present invention 2 the is shown state when being positioned at low supervelocity desired location (the 1st desired location).In addition, Figure 17 is the birds-eye view of supervelocity detector switch that the speed limiter for elevator of Figure 16 the is shown state when being positioned at superb Speed Setting position (the 2nd desired location).In the drawings, the switch installation portion material (not shown) that supervelocity detector switch 25 is installed rotates freely centered by the pin with axis vertical with the axis of main shaft 16.Therefore, rotate with respect to housing 15 by switch installation portion material, supervelocity detector switch 25 is along the axis direction displacement of main shaft 16.
By utilizing the restraint device identical with embodiment 1 to come the rotation of limit switch installation portion material, the scope of supervelocity detector switch 25 displacement is restricted to predetermined low supervelocity desired location (Figure 16) and the scope between the superb Speed Setting position (Figure 17), superb Speed Setting position than low supervelocity desired location along the axis direction of main shaft 16 away from governor sheave 17.
Switch installation portion material and swivel 42 are via the 1st linkage interlock that comprises a plurality of link rod part materials.Thus, supervelocity detector switch 25 is shifted between low supervelocity desired location and superb Speed Setting position according to the hand of rotation of swivel 42.Namely, when the hand of rotation of swivel 42 is forward (, when car 2 is moved upward), supervelocity detector switch 25 is displaced to superb Speed Setting position, the hand of rotation of swivel 42 when being reverse (, when car 2 moves downwards), supervelocity detector switch 25 is displaced to low supervelocity desired location.
At governor sheave 17 radially, the 1st protrusion tab 27b is configured in the position identical with track A.At governor sheave 17 radially, the 2nd protrusion tab 27c is configured in the position identical with track B.Therefore, the 1st protrusion tab 27b is configured in the position near main shaft 16 than the 2nd protrusion tab 27c.In addition, the length of the 1st protrusion tab 27b size of the axis direction of main shaft 16 (that is) is shorter than the length of the 2nd protrusion tab 27c.
Utilization flies to put 19 rotation, and starting element 22 passes through on the predetermined plane (starting element displacement face) vertical with the axis of main shaft 16.That is, starting element 22 is included in the predetermined plane vertical with the axis of main shaft 16 with respect to the path of governor sheave 17 displacements.
As shown in figure 16, when supervelocity detector switch 25 is positioned at low supervelocity desired location, the 1st protrusion tab 27b and the 2nd protrusion tab 27c respectively with the predetermined level crossing in the path that comprises starting element 22.Therefore, when supervelocity detector switch 25 was positioned at low hypervelocity desired location, if the speed of car 2 becomes the 1st supervelocity V1, starting element 22 arrived track A, and then starting element 22 and the 1st protrusion tab 27b butt come control lever 27 is operated.
As shown in figure 17, when supervelocity detector switch 25 was positioned at superb Speed Setting position, the 1st protrusion tab 27b broke away from from the predetermined plane in the path that comprises starting element 22, and the 2nd protrusion tab 27c and predetermined level crossing are only arranged.Therefore, when supervelocity detector switch 25 was positioned at superb Speed Setting position, even the speed of car 2 becomes the 1st supervelocity V1, starting element 22 arrived track A, starting element 22 also not can with the 1st protrusion tab 27b butt, can not operate control lever 27.In addition, when supervelocity detector switch 25 is positioned at superb Speed Setting position, if the speed of car 2 becomes the 2nd supervelocity V2 higher than the 1st supervelocity V1, starting element 22 arrives track B, and then starting element 22 and the 2nd protrusion tab 27c butt come control lever 27 is operated.Other structure is the same with embodiment 1.
Like this, even the speed that supervelocity detector switch 25, still can make the car 2 when utilizing starting element 22 operation supervelocity detector switch 25 along the displacement of the axis direction of main shaft 16 is switched between the 1st supervelocity V1 and the 2nd supervelocity V2 according to the hand of rotation of governor sheave 17.
In addition, in each above-mentioned embodiment, permanent magnet 45 is fixed on the fixed part 44 of governor sheave 17, metallic object 46 is fixed on swivel 42, but also can be the fixed part 44 that metallic object 46 is fixed on governor sheave 17, permanent magnet 45 is fixed on swivel 42, metallic object 46 and governor sheave 17 are rotated integratedly, permanent magnet 45 and swivel 42 are rotated integratedly.
In addition, in each above-mentioned embodiment, permanent magnet 45 and metallic object 46 are radially opposed across predetermined gap governor sheave 17, but also can for, permanent magnet 45 is opposed across predetermined gap at the axis direction of main shaft 16 with metallic object 46.Even like this, because permanent magnet 45 moves with respect to metallic object 46 by the rotation of governor sheave 17, therefore can produce vortex flow on the surface of metallic object 46.Therefore, according to the principle of Aragos'disk, can apply and the rotational force of governor sheave 17 to the equidirectional rotation swivel 42.
In addition, in each above-mentioned embodiment, rotational force transfer device 43 has permanent magnet 45 and metallic object 46, utilize the principle of Aragos'disk, swivel 42 is applied and the rotational force of governor sheave 17 to the equidirectional rotation, but so long as with governor sheave 17 separate rotation and to swivel 42 apply and governor sheave 17 to the device of the rotational force of equidirectional rotation, then be not limited to this.
Claims (2)
1. a speed limiter for elevator is characterized in that, described speed limiter for elevator possesses:
Supporting mass, it is provided with main shaft;
Governor sheave, it is around hanging with the mobile overspeed governor of car, and this governor sheave rotates centered by described main shaft along with the movement of described car;
Fly pendulum, it is arranged at described governor sheave, and comes to rotate with respect to described governor sheave according to the centnifugal force that the rotation by described governor sheave produces;
Starting element, it is arranged at the described pendulum that flies, and the rotation by the described direction that increases to the rotative speed of described governor sheave that flies to put, and with respect to the radial outside displacement of described governor sheave to described governor sheave;
The engaging pawl, it is arranged at the described pendulum that flies, and the rotation by the described direction that increases to the rotative speed of described governor sheave that flies to put, and to the radially inner side displacement of described governor sheave;
Swivel, it is independent of the freely rotation centered by described main shaft of described governor sheave ground;
The rotational force transfer device, by the rotation of described governor sheave, described rotational force transfer device applies and the rotational force of described governor sheave to the equidirectional rotation described swivel;
Switch installation portion material, it is arranged on described supporting mass in the mode that can be shifted;
The 1st linkage, it makes described swivel and the interlock of described switch installation portion material, and makes described switch installation portion material displacement according to the hand of rotation of described swivel;
The supervelocity detector switch, it is shifted with described switch installation portion material, and this supervelocity detector switch is started by the operation of described starting element;
Restraint device, its scope to the displacement of described supervelocity detector switch limits, so that described supervelocity detector switch is shifted between the 1st desired location and the 2nd desired location, described the 1st desired location is the position that is operated by described starting element during for predetermined the 1st supervelocity when the speed of described car, and described the 2nd desired location is that the speed when described car is the position that is operated by described starting element during than high the 2nd supervelocity of described the 1st supervelocity;
Ratchet, but it can be shifted between clamped position and engaging avoidance position along the axis direction of described main shaft, and by with the engaging of described engaging pawl centered by described main shaft to the direction rotation identical with described governor sheave, but described clamped position is when the speed of described car described ratchet and the described position that engages the pawl engaging for than the high emergent stopping supervelocity of described the 2nd supervelocity the time, and described engaging avoidance position is that described ratchet leaves described governor sheave and avoids and the described position that engages the engaging between the pawl;
The 2nd linkage, it makes described swivel and described ratchet gearing, but and make described ratchet according to the hand of rotation of described swivel and avoid in described clamped position and described engaging and to be shifted between the position; And
Grasping device, described overspeed governor is controlled in its rotation by described ratchet.
2. speed limiter for elevator according to claim 1 is characterized in that,
Described rotational force transfer device has permanent magnet and metallic object, any one party in described permanent magnet and described governor sheave and the described swivel is rotated integratedly, described metallic object is opposed across predetermined gap and described permanent magnet, and the opposing party in described metallic object and described governor sheave and the described swivel rotates integratedly.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/063384 WO2012017549A1 (en) | 2010-08-06 | 2010-08-06 | Elevator speed governor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103052583A true CN103052583A (en) | 2013-04-17 |
Family
ID=45559080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800684612A Pending CN103052583A (en) | 2010-08-06 | 2010-08-06 | Elevator speed governor |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2602222A1 (en) |
| JP (1) | JPWO2012017549A1 (en) |
| KR (1) | KR20130054336A (en) |
| CN (1) | CN103052583A (en) |
| WO (1) | WO2012017549A1 (en) |
Cited By (5)
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| CN103588058A (en) * | 2013-10-30 | 2014-02-19 | 河北东方富达机械有限公司 | Rope wheel brake |
| CN103818793A (en) * | 2014-02-25 | 2014-05-28 | 上海市建筑科学研究院科技发展总公司 | Low-speed anti-falling safety device |
| CN105110130A (en) * | 2015-09-15 | 2015-12-02 | 广东新力欧菲尔电梯有限公司 | AC (Alternating Current) variable frequency speed regulating loading lift assembly |
| CN107539856A (en) * | 2016-06-29 | 2018-01-05 | 上海龙钰电梯配件有限公司 | A kind of elevator governor |
| CN107848749A (en) * | 2015-08-25 | 2018-03-27 | 株式会社日立制作所 | Speed regulator for elevator and lift appliance |
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|---|---|---|---|---|
| WO2010116503A1 (en) * | 2009-04-09 | 2010-10-14 | 三菱電機株式会社 | Elevator governor |
| CN102992134B (en) * | 2012-12-05 | 2014-08-20 | 江南嘉捷电梯股份有限公司 | Protection device using guide pulley on lift |
| WO2014125574A1 (en) * | 2013-02-13 | 2014-08-21 | 株式会社日立製作所 | Elevator device |
| JP5678111B2 (en) * | 2013-03-01 | 2015-02-25 | 株式会社日立製作所 | Elevator equipment |
| JP5870165B2 (en) * | 2014-07-08 | 2016-02-24 | 東芝エレベータ株式会社 | Elevator governor |
| JP6295189B2 (en) * | 2014-11-28 | 2018-03-14 | 株式会社日立製作所 | Elevator equipment |
| KR101529869B1 (en) * | 2014-12-08 | 2015-06-19 | (주)미주하이텍 | Prevent reverse drive device of escalator |
| JP6039011B1 (en) * | 2015-06-10 | 2016-12-07 | 東芝エレベータ株式会社 | Elevator equipment |
| EP3363759B1 (en) * | 2015-10-13 | 2020-05-06 | Hitachi, Ltd. | Elevator device |
| JP6116731B2 (en) * | 2016-04-06 | 2017-04-19 | 株式会社日立製作所 | Elevator equipment |
| CN108083050A (en) * | 2018-01-08 | 2018-05-29 | 台州富士电梯制造有限公司 | A kind of explosion-proof limiter of speed |
| US11034546B2 (en) | 2018-06-28 | 2021-06-15 | Otis Elevator Company | Elevator governor |
| US10968077B2 (en) * | 2018-07-19 | 2021-04-06 | Otis Elevator Company | Enhanced governor system for elevator |
| CN113776804B (en) * | 2021-09-22 | 2024-08-27 | 日立电梯电机（广州）有限公司 | Dynamic life test method for brake |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588058A (en) * | 2013-10-30 | 2014-02-19 | 河北东方富达机械有限公司 | Rope wheel brake |
| CN103588058B (en) * | 2013-10-30 | 2016-01-20 | 河北东方富达机械有限公司 | Rope wheel brake |
| CN103818793A (en) * | 2014-02-25 | 2014-05-28 | 上海市建筑科学研究院科技发展总公司 | Low-speed anti-falling safety device |
| CN103818793B (en) * | 2014-02-25 | 2016-01-27 | 上海市建筑科学研究院科技发展有限公司 | A kind of low speed anti-falling safety device |
| CN107848749A (en) * | 2015-08-25 | 2018-03-27 | 株式会社日立制作所 | Speed regulator for elevator and lift appliance |
| CN107848749B (en) * | 2015-08-25 | 2019-06-11 | 株式会社日立制作所 | Speed regulator for elevator and lift appliance |
| CN105110130A (en) * | 2015-09-15 | 2015-12-02 | 广东新力欧菲尔电梯有限公司 | AC (Alternating Current) variable frequency speed regulating loading lift assembly |
| CN107539856A (en) * | 2016-06-29 | 2018-01-05 | 上海龙钰电梯配件有限公司 | A kind of elevator governor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2602222A1 (en) | 2013-06-12 |
| WO2012017549A1 (en) | 2012-02-09 |
| JPWO2012017549A1 (en) | 2013-09-19 |
| KR20130054336A (en) | 2013-05-24 |
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Application publication date: 20130417 |