CN104118784B - A kind of flat bed anti-slip dynamic method and device of elevator - Google Patents
A kind of flat bed anti-slip dynamic method and device of elevator Download PDFInfo
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- CN104118784B CN104118784B CN201410251037.1A CN201410251037A CN104118784B CN 104118784 B CN104118784 B CN 104118784B CN 201410251037 A CN201410251037 A CN 201410251037A CN 104118784 B CN104118784 B CN 104118784B
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Abstract
nullThe invention discloses the method for safe operation of a kind of cabin elevator，A kind of flat bed anti-slip dynamic method of cabin elevator，It has employed the rope sheave in elevator governor and/or rope sheave ejector and lift car emergency braking apparatus，Wherein rope sheave and/or rope sheave ejector and lift car synchronization action，When lift car entrance flat bed stops，The physics path increment of lift car is monitored in real time by rope sheave and/or rope sheave ejector，When lift car slips phenomenon，Then there is the rotation synchronized in above-mentioned rope sheave and/or rope sheave ejector，Control lift car emergency braking apparatus by this swing offset amount and carry out brake hard，Thus solve and prevent lift car from slipping the technical problem of car phenomenon when flat bed stops，Improve the operation stability of elevator system，Reduce the possibility of cabin elevator emerged in operation potential safety hazard，Ensure that the security of the lives and property of passenger.
Description
Technical field
The present invention relates to the method for safe operation of a kind of elevator, a kind of anti-slip dynamic method of flat bed of elevator.Additionally provide the device that a kind of anti-slip dynamic method of above-mentioned kind of Elevator landing is used in the present invention simultaneously.
Background technology
The principle of elevator is exactly an assembly pulley, and the two ends of pulley are hung car and counterweight respectively by steel wire rope.The use of elevator is dependent on motor and drives traction sheave to rotate, and drives steel wire rope to move, thus orders about car and counterweight change in location.
Wherein, the movement of above-mentioned steel wire rope is transmitted energy by frictional force between traction sheave and steel wire rope, and this frictional force is i.e. traction, and its size is affected by the factor such as thickness of traction sheave grooving shape and steel wire rope.Elevator is after coming into operation, and because of the reason of mechanical wear, the grooving deformation of traction sheave, steel rope abrasion, such traction will weaken.It addition, the stopping of above-mentioned elevator is dependent on traction machine brake sticking brake, band-type brake is to be made up of the clamp of two panels band friction skin, and lift car opens when running, and closes during stopping.The frictional force between band-type brake dish on clamp and traction sheave, is i.e. brake force.Elevator is in Long-Time Service, and friction skin can wear and tear, carbonization, can reduce brake force.Further, above-mentioned a series of elevator action is all that the electric control system by elevator carrys out integrating control.In long-time use, also can there is data perturbation in software control part, the situation such as out of control occurs.As long as there is one in foregoing three kinds of situations, being easy for causing elevator to slip car (slipping) phenomenon when flat bed stops, the most then causing passenger in a hurry, serious also can cause security of the lives and property accident.
Existing elevator standard, elevator design specification are all not directed to the associated safety degree of protection requirement that relevant lift car slips.Therefore, most of elevator device the most on the market is all not prevented from the corresponding safeguard procedures that car slips, even if there being the safeguard measure having related to prevent car from slipping in fraction elevator device, but this measure is the most all to realize by the way of pure electrical control, the such as each landing position at elevator hoistways installs travel switch, or by setting up encoder, by encoder, car lifts straight-line displacement to be converted into the signal of telecommunication and be sent to the electric control system of elevator, judge whether car occurs slipping by electric control system, thus drive rope brake or/and operating car is braked by the lift car emergency braking apparatus such as safety tongs by force.But the pure electric control method preventing car from slipping mentioned in above-mentioned, there is the technological deficiency of application poor stability in it.
Summary of the invention
The invention aims to solve above-mentioned the deficiencies in the prior art and the anti-slip dynamic method of flat bed of the elevator that a kind of operation troubles rate is low is provided.
To achieve these goals, the anti-slip dynamic method of flat bed of a kind of elevator designed by the present invention, which employs the rope sheave in elevator governor and/or rope sheave ejector and lift car emergency braking apparatus, wherein rope sheave and/or rope sheave ejector and lift car synchronization action, when lift car entrance flat bed stops, the physics path increment of lift car is monitored in real time by rope sheave and/or rope sheave ejector, when lift car slips phenomenon, then there is the rotation synchronized in above-mentioned rope sheave and/or rope sheave ejector, control lift car emergency braking apparatus by this swing offset amount and carry out brake hard, and can also further disconnect elevator safety operation loop.
Preferred as a kind of technology, above-mentioned in a kind of anti-slip dynamic method of flat bed of elevator, it uses:
One friction pulley making synchronous rotary action with the rope sheave in elevator governor,
One controls the first electromagnet that loop is controlled by the unlocking signal of car door lock,
One the second electromagnet triggering lift car emergency braking apparatus,
One under the iron core thrust of above-mentioned first electromagnet, its cam can contact and realize the cam pack of mutual transmission with above-mentioned friction pulley,
And a contact is positioned on the running orbit of above-mentioned cam pack cam, and with the second electromagnet control what the loop signal of telecommunication was connected travel switch；
Wherein, lift car runs to hoistway flat bed, when car door is opened, the control loop of the first electromagnet in above-mentioned receives car door lock unlocking signal thus triggers the first electromagnet action, its iron core pushes the cam in described cam pack to, this cam is promoted to be subjected to displacement, until engaging with friction pulley all the time, the most in actual use, the iron core of the first electromagnet the most not necessarily arrives pushes cam to, other parts in cam pack can also be pushed to, as long as guaranteeing that cam can produce a displacement upwards engaged with friction pulley；Now, when lift car slips phenomenon, cam, friction pulley in above-mentioned act as synchronous rotary with rope sheave three one, and above-mentioned cam in rotary course with contact the action of above-mentioned travel switch, and then the signal of telecommunication, the second electromagnet action triggers lift car emergency braking apparatus is sent to the control loop of the second electromagnet.
Above-mentioned optimal technical scheme is run to hoistway flat bed when lift car, if lift car slips (i.e. slip car phenomenon) during stopping, the displacement of this lift car is to showing by a friction pulley linked with the rope sheave synchronised in elevator governor, friction pulley resynchronisation area moving cam, and cam can be controlled by the shape of cam, size design and trigger the actuating length of travel switch, promote the operation reasonability of the anti-slip dynamic method of this flat bed, prevent misoperation.
Simultaneously, additionally provide the anti-slip dynamic device of flat bed of a kind of elevator in the present invention, it includes elevator governor and lift car emergency braking apparatus, the wherein rope sheave in elevator governor and lift car synchronous interaction, is connected with on elevator governor and is controlled by the physics path increment of rope sheave and then trigger the drive mechanism of lift car emergency braking apparatus.
As a kind of technology preferred version, drive mechanism in above-mentioned includes the friction pulley that a drive sleeve is connected on the sheave shaft of elevator governor and first electromagnet being fixed on elevator governor side plate, second electromagnet, a cam pack and a travel switch；
Wherein, above-mentioned in cam pack be mainly made up of cam and pedestal, wherein pedestal is fixed on elevator governor side plate, and cam activation connects on the base, and this cam is positioned at the underface of friction pulley, there is a clearance distance L between the two1；
The first electromagnet in above-mentioned is positioned at the underface of cam pack, and it controls loop and electrically connects with the unlocking signal of car door lock, and in this first electromagnet, the stroke distances of iron core is L2, above-mentioned iron core is corresponding with cam, and clearance distance between the two is L3, and L2≥L1+
L3；Preferably L2＞ L1+ L3, so can ensure that the gearing friction power between friction pulley and cam, prevent friction pulley from the phenomenon skidded occurring between the two with cam；
The control loop signal of telecommunication of above-mentioned travel switch and the second electromagnet connects, and its contact is positioned on the running orbit of above-mentioned cam, and described second electromagnet matches with lift car emergency braking apparatus.
The present invention considers from the operating Energy Angle of elevator, and its first, second electromagnet used is serially connected in normal open circuit without exception, the iron core generation action of the electromagnet that is i.e. energized.But the most above-mentioned electromagnet can also be serially connected in normally closed loop, in the case of this kind, the surface of cam friction pulley to be positioned at, the rod nose portion of the first electromagnet is directly connected with cam, the iron core action of the first electromagnet is triggered by dead electricity, so that the pulling force of cam is disappeared by iron core, the most again by the reset response power being similar to spring or other flexible member, and then cam is driven to contact with friction pulley and transmission.
nullAs further technological improvement，Cam pack in above-mentioned detection device further comprises a pivot pin、One locking nut、One latch segment、One reset tension spring and a reduction torsion spring，And offer gathering sill on the installation panel of its pedestal，Above-mentioned pivot pin runs through and enters in this gathering sill，And on can carrying out in this gathering sill、Lower reciprocating motion，Its axle carries out spacing upwardly through locking nut and latch segment，This latch segment is positioned at the outside installing panel，Cam sleeve in above-mentioned cam pack is connected on pivot pin，And it is positioned at the outside of above-mentioned latch segment，And carry out spacing by chuck，The bottom of pedestal is caught in above-mentioned reset tension spring one end，The other end catches on latch segment，Under this extension spring power effect, above-mentioned pivot pin is against the bottom of gathering sill，Reduction torsion spring in above-mentioned is socketed on pivot pin，And between latch segment and cam，One end of this reduction torsion spring is plugged on latch segment，Its other end is plugged on cam.
Reset tension spring in this improvement technical scheme ensure that after the iron core of the first electromagnet pushes away power-assisted disappearance to cam, cam can carry out the reset in vertical direction in time, guarantee when the control loop of the first electromagnet does not receives the unlocking signal of car door lock, above-mentioned cam and friction pulley are in separately shape all the time, when the unlocking signal simultaneously received when the control loop that the first electromagnet connects disappears, above-mentioned cam and friction pulley can realize separating moment, thus it is properly functioning to ensure that lift car can be carried out in elevator hoistways.Reduction torsion spring in above-mentioned ensure that and slips emotionally condition at lift car, cam had pivoted after certain angle under the drive of friction pulley, after cam and friction pulley driving force between the two disappears, cam can carry out the timely reset pivoting on direction.
As further technological improvement, above-mentioned detection device also includes a positioner, this positioner is mainly by location bar, back-moving spring and location pedestal composition, the one end of described location bar is provided with spacing top, above-mentioned location pedestal is fixed on limiter of speed side plate, this location pedestal offers a preset hole, above-mentioned location bar runs through this preset hole, above-mentioned back-moving spring is serially connected on the bar of above-mentioned location, its one end apical grafting is on the bottom surface of spacing top, the other end then apical grafting is offered on face in the preset hole of location pedestal, and this reset spring all the time is in contraction-like, limit notch is offered on cam in above-mentioned, the spacing top crown of above-mentioned location bar is connected in this limit notch, when cam rotates, the spacing top of above-mentioned location bar is deviate from the limit notch of cam.
Positioner in this further improvement project can assist above-mentioned in reduction torsion spring, under both common active forces, emotionally condition is slipped at lift car, cam had pivoted after certain angle under the drive of friction pulley, after cam and friction pulley driving force between the two disappears, cam in above-mentioned resets in time and accurately can carry out on direction of principal axis, the operation stability that lifting device is overall.
The anti-slip dynamic method of flat bed of a kind of elevator that the present invention obtains, it carrys out control elevator car emergency braking apparatus by the physics path increment of lift car and lift car is carried out brake hard, thus effectively avoid lift car to slip car phenomenon when flat bed stops, improve the operation stability of elevator device, reduce the possibility of elevator emerged in operation potential safety hazard, it is ensured that the security of the lives and property of elevator ride personnel；Present invention also offers the device of a kind of anti-slip dynamic method of flat bed realizing above-mentioned elevator simultaneously, this device is highly sensitive to the monitoring in real time of lift car displacement, can coordinate with any type of elevator governor, such as pendulum limiter of speed or centrifugal governor etc., use limitation is little, facilitates the market wealthy popularization of enterprising line width.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the anti-slip dynamic device of the flat bed of a kind of elevator provided in embodiment 1；
Fig. 2 is the side structure schematic diagram (with partial cutaway) of the anti-slip dynamic device of the flat bed of a kind of elevator provided in embodiment 1；
Fig. 3 is the structural representation that embodiment 2 is provided the anti-slip dynamic device cam assembly of flat bed of a kind of elevator；
Fig. 4 is the Facad structure schematic diagram of the anti-slip dynamic device of the flat bed of a kind of elevator provided in embodiment 3；
Fig. 5 is the close-up schematic view in Fig. 4 at A；
Fig. 6 is the side structure schematic diagram (with partial cutaway) of the anti-slip dynamic device of the flat bed of a kind of elevator provided in embodiment 2.
In figure: rope sheave 1, friction pulley 2, limiter of speed side plate 3, first electromagnet 4, iron core 4-1, cam pack 5, pedestal 5-1, cam 5-2, pivot pin 5-3, locking nut 5-4, latch segment 5-5, reset tension spring 5-6, reduction torsion spring 5-7, gathering sill 5-8, chuck 5-9, limit notch 5-10, travel switch 6, contact 6-1, positioner 7, location pedestal 7-1, location bar 7-2, back-moving spring 7-3, spacing top 7-4, preset hole offers face 7-5, sheave shaft 8, second electromagnet 9, driving spring 10.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Embodiment 1:
The anti-slip dynamic method of flat bed of a kind of elevator provided in the present embodiment, it uses:
One friction pulley 2 making synchronous rotary action with the rope sheave 1 in elevator governor,
The first electromagnet 4 that one normally opened control loop is controlled by the unlocking signal of car door lock,
One the second electromagnet 9 triggering lift car emergency braking apparatus,
One under the iron core 4-1 thrust of above-mentioned first electromagnet 4, its cam 5-2 can contact and realize the cam pack 5 of mutual transmission with above-mentioned friction pulley 2,
And a contact 6-1 is positioned on the running orbit of above-mentioned cam pack 5 cam 5-2, and be connected with the normally opened control loop signal of telecommunication of the second electromagnet 9 travel switch 6；
Wherein, when lift car is properly functioning in hoistway, the normally opened control loop of the first electromagnet 4 in above-mentioned does not receives the unlocking signal of car door lock, the iron core 4-1 of the first electromagnet 4 is failure to actuate, now cam 5-2 does not contacts with friction pulley 2, thus the rotation of friction pulley 2 will not carry out synchronous rotary by band moving cam 5-2.Treat that lift car runs to hoistway flat bed, when car door is opened, the normally opened control loop of the first electromagnet 4 in above-mentioned receives car door lock unlocking signal thus triggers the first electromagnet 4 action, its iron core 4-1 pushes the cam 5-2 in described cam pack 5 to, this cam 5-2 is promoted to be subjected to displacement, until engaging with friction pulley 2 all the time, now, when lift car slips phenomenon, cam 5-2 in above-mentioned, friction pulley 2 and rope sheave 1 three one act as synchronous rotary, and above-mentioned cam 5-2 contact 6-1 with above-mentioned travel switch 6 in rotary course contacts and action, and then the signal of telecommunication is sent to the normally opened control loop of the second electromagnet 9, second electromagnet 9 action triggers lift car emergency braking apparatus, disconnect elevator safety operation loop.
As depicted in figs. 1 and 2, simultaneously, additionally provide that a kind of anti-slip dynamic method of flat bed of above-mentioned elevator used in the present embodiment prevents from slipping device, it includes elevator governor and lift car emergency braking apparatus, the wherein rope sheave 1 in elevator governor and lift car synchronous interaction, is connected with on elevator governor and is controlled by the physics path increment of rope sheave 1 and then trigger the drive mechanism of lift car emergency braking apparatus.Drive mechanism in above-mentioned includes the friction pulley 2 that a drive sleeve is connected on the sheave shaft 8 of elevator governor and first electromagnet 4 being fixed on elevator governor side plate 3,9, cam pack 5 of second electromagnet and a travel switch 6；
Wherein, cam pack 5 in above-mentioned is mainly made up of cam 5-2 and pedestal 5-1, and wherein pedestal 5-1 is fixed on elevator governor side plate 3, and cam 5-2 is movably connected on this pedestal 5-1, and this cam 5-2 is positioned at the underface of friction pulley 2, there is a clearance distance L between the two1；
The first electromagnet 4 in above-mentioned is positioned at the underface of cam pack 5, and its normally opened control loop electrically connects with the unlocking signal of car door lock, and in this first electromagnet 4, the stroke distances of iron core 4-1 is L2, above-mentioned iron core 4-1 is corresponding with cam 5-2, and clearance distance between the two is L3, and L2＞ L1+ L3, so can ensure that the gearing friction power between friction pulley 2 and cam 5-2, prevent the phenomenon that friction pulley 2 skids between the two with cam 5-2；
Above-mentioned travel switch 6 is connected with the normally opened control loop signal of telecommunication of the second electromagnet 9, and its contact 6-1 is positioned on the running orbit of above-mentioned cam 5-2, and described second electromagnet 9 matches with lift car emergency braking apparatus.
Embodiment 2:
nullThe anti-slip dynamic method and apparatus of flat bed of a kind of elevator provided in the present embodiment，It is the most consistent with the method and apparatus in above-described embodiment 1，As shown in Figure 3，Simply the cam pack 5 in the anti-slip dynamic device of flat bed provided in the present embodiment further comprises a pivot pin 5-3、One locking nut 5-4、One latch segment 5-5、An one reset tension spring 5-6 and reduction torsion spring 5-7，And offer gathering sill 5-8 on the installation panel of its pedestal 5-1，Above-mentioned pivot pin 5-3 runs through and enters in this gathering sill 5-8，And on can carrying out in this gathering sill 5-8、Lower reciprocating motion，Its axle carries out spacing upwardly through locking nut 5-4 and latch segment 5-5，This latch segment 5-5 is positioned at the outside installing panel，Cam 5-2 in above-mentioned cam pack 5 is socketed on pivot pin 5-3，And it is positioned at the outside of above-mentioned latch segment 5-5，And carry out spacing by chuck 5-9，The bottom of pedestal 5-1 is caught in above-mentioned reset tension spring 5-6 one end，The other end catches on latch segment 5-5，Under this extension spring power effect, above-mentioned pivot pin 5-3 is against the bottom of gathering sill 5-8，Reduction torsion spring 5-7 in above-mentioned is socketed on pivot pin 5-3，And between latch segment 5-5 and cam 5-2，One end of this reduction torsion spring 5-7 is plugged on latch segment 5-5，Its other end is plugged on cam 5-2.
Reset tension spring 5-6 in above-mentioned ensure that after the iron core 4-1 of the first electromagnet 4 pushes away power-assisted disappearance to cam 5-2, cam 5-2 can carry out the reset in vertical direction in time, guarantee not receive the unlocking signal of car door lock at the first electromagnet 4, above-mentioned cam 5-2 and friction pulley 2 are in separately shape all the time, simultaneously when the unlocking signal that the first electromagnet 4 receives disappears, above-mentioned cam 5-2 and friction pulley 2 can realize separating moment, it is ensured that lift car carries out properly functioning in elevator hoistways；Above-mentioned reduction torsion spring 5-7 ensure that after cam 5-2 and friction pulley 2 driving force between the two disappears, and cam 5-2 can carry out the timely reset pivoting on direction.
Embodiment 3:
nullThe anti-slip dynamic detection method of flat bed of a kind of elevator provided in the present embodiment and detection device，It is the most consistent with the detection method in above-described embodiment 2 and detection device，As shown in Figure 4 and Figure 5，Simply the detection device in the present embodiment also includes a positioner 7，This positioner 7 is mainly by location bar 7-2、Back-moving spring 7-3 and location pedestal 7-1 composition，The one end of described location bar 7-2 is provided with spacing top 7-4，Above-mentioned location pedestal 7-1 is fixed on limiter of speed side plate 3，This location pedestal 7-1 offers a preset hole，Above-mentioned location bar 7-2 runs through this preset hole，Above-mentioned back-moving spring 7-3 is serially connected on above-mentioned location bar 7-2，Its one end apical grafting is on the bottom surface of spacing top 7-4，The other end then apical grafting is offered on the 7-5 of face in the preset hole of location pedestal 7-1，And this back-moving spring 7-3 is in contraction-like all the time，Limit notch 5-10 is offered on cam 5-2 in above-mentioned，The spacing top 7-4 apical grafting of above-mentioned location bar 7-2 is in this limit notch 5-10，When cam 5-2 rotates，The spacing top 7-4 of above-mentioned location bar 7-2 deviates from limit notch 5-10 of cam 5-2.
Positioner 7 in above-mentioned can assist above-mentioned in reduction torsion spring 5-7, under both common active forces, cam 5-2 in above-mentioned is not when carrying out driving contact with friction pulley 2, and it can reset accurately around direction of principal axis, the operation stability that lifting device is overall.
Embodiment 4:
The anti-slip dynamic method of flat bed of a kind of elevator provided in the present embodiment, it uses:
One friction pulley 2 making synchronous rotary action with the rope sheave 1 in elevator governor,
The first electromagnet 4 that one normally closed control loop is controlled by the unlocking signal of car door lock,
One the second electromagnet 9 triggering lift car emergency braking apparatus,
One under the iron core 4-1 pulling force effect of above-mentioned first electromagnet 4, its cam 5-2 can keep the cam pack 5 of certain interval with above-mentioned friction pulley 2,
After one iron core 4-1 when above-mentioned first electromagnet 4 pulling force on cam pack 5 disappears, it is possible to promote cam 5-2 to contact with friction pulley 2 and realize the driving spring 10 of mutual transmission；
And a contact 6-1 is positioned on the running orbit of above-mentioned cam pack 5 cam 5-2, and be connected with the normally closed control loop signal of telecommunication of the second electromagnet 9 travel switch 6；
Wherein, when lift car is properly functioning in hoistway, the normally closed control loop of the first electromagnet 4 in above-mentioned does not receives the unlocking signal of car door lock, the iron core 4-1 of the first electromagnet 4 is to beginning to whole holding action, now cam 5-2 does not contacts with friction pulley 2, thus the rotation of friction pulley 2 will not carry out synchronous rotary by band moving cam 5-2.nullTreat that lift car runs to hoistway flat bed，When car door is opened，The normally closed control loop of the first electromagnet 4 in above-mentioned receives car door lock unlocking signal thus triggers the first electromagnet 4 action，Make its iron core 4-1 that the pulling force of cam pack 5 to be disappeared，Now the cam 5-2 in cam pack 5 relends the reset response power helping driving spring 10，This cam 5-2 is promoted to keep engaging with friction pulley 2 all the time，Now，When lift car slips phenomenon，Cam 5-2 in above-mentioned、Friction pulley 2 and rope sheave 1 three one act as synchronous rotary，And above-mentioned cam 5-2 contact 6-1 with above-mentioned travel switch 6 in rotary course contacts and action，And then the signal of telecommunication is sent to the normally closed control loop of the second electromagnet 9，Second electromagnet 9 action triggers lift car emergency braking apparatus，Disconnect elevator safety operation loop.
Simultaneously, additionally provide that a kind of anti-slip dynamic method of flat bed of above-mentioned elevator used in the present embodiment prevents from slipping device, as shown in Figure 6, it includes elevator governor and lift car emergency braking apparatus, the wherein rope sheave 1 in elevator governor and lift car synchronous interaction, is connected with on elevator governor and is controlled by the physics path increment of rope sheave 1 and then trigger the drive mechanism of lift car emergency braking apparatus.Drive mechanism in above-mentioned includes the friction pulley 2 that a drive sleeve is connected on the sheave shaft 8 of elevator governor and first electromagnet 4 being fixed on elevator governor side plate 3,9, cam pack 5 of second electromagnet and a travel switch 6；
Wherein, cam pack 5 in above-mentioned is positioned at the surface of friction pulley 2, this cam pack 5 is mainly made up of cam 5-2, latch segment 5-5, driving spring 10 and pedestal 5-1, wherein pedestal 5-1 is fixed on elevator governor side plate 3, said base 5-1 is provided with gathering sill 5-8, cam 5-2 and latch segment 5-5 is socketed on the pivot pin 5-3 in above-mentioned gathering sill 5-8, and cam 5-2 keeps aliging with the friction pulley 2 of lower section, driving spring 10 clasp joint is between latch segment 5-5 and pedestal 5-1, and cam 5-2 remains a reset pulling force vertically downward；
The first electromagnet 4 in above-mentioned is positioned at the surface of cam pack 5, and its normally closed control loop electrically connects with the unlocking signal of car door lock, the iron core 4-1 of this first electromagnet 4 is connected with the latch segment 5-5 on cam pack 5, and promote the pivot pin 5-3 being socketed with cam 5-2 and latch segment 5-5 that the reset pulling force of driving spring 10 can be overcome to remain the upper surface apical grafting with gathering sill 5-8, so that the lower surface of pivot pin 5-3 and gathering sill 5-8 keeps an operating range L between the two4, cam 5-2 and friction pulley 2 keep a clearance distance L between the two5, this clearance distance L5＜ operating range L4, so after the pulling force of cam 5-2 is disappeared by the iron core 4-1 of the first electromagnet 4, under the reset pulling force effect of driving spring 10, can ensure that friction pulley 2 is in close contact with cam 5-2, prevent the phenomenon that friction pulley 2 skids between the two with cam 5-2；
Above-mentioned travel switch 6 is connected with the normally closed control loop signal of telecommunication of the second electromagnet 9, and its contact 6-1 is positioned on the running orbit of above-mentioned cam 5-2, and described second electromagnet 9 matches with lift car emergency braking apparatus.
Claims (4)
1.OnePlant the anti-slip dynamic method of flat bed of elevator, it is characterized in that it have employed:
One lift car emergency braking apparatus,
One friction pulley (2) making synchronous rotary action with the rope sheave (1) in elevator governor,
One controls the first electromagnet (4) that loop is controlled by the unlocking signal of car door lock,
One the second electromagnet (9) triggering lift car emergency braking apparatus,
One under iron core (4-1) thrust of above-mentioned first electromagnet (4), its cam (5-2) can contact with above-mentioned friction pulley (2) and realize the cam pack (5) of mutual transmission,
And a contact (6-1) is positioned on the running orbit of above-mentioned cam pack (5) cam (5-2), and with the second electromagnet (9) control what the loop signal of telecommunication was connected travel switch (6)；
Wherein, lift car runs to hoistway flat bed, when car door is opened, the control loop of the first electromagnet (4) in above-mentioned receives car door lock unlocking signal thus triggers the first electromagnet (4) action, its iron core (4-1) pushes the cam (5-2) in described cam pack (5) to, this cam (5-2) is promoted to be subjected to displacement, until engaging with friction pulley (2) all the time；Now, when lift car slips phenomenon, cam (5-2), friction pulley (2) in above-mentioned act as synchronous rotary with rope sheave (1) three one, and above-mentioned cam (5-2) contacts with the contact (6-1) of above-mentioned travel switch (6) in rotary course and action, and then the signal of telecommunication, the second electromagnet (9) action triggers lift car emergency braking apparatus is sent to the control loop of the second electromagnet (9).
2. the anti-slip dynamic device of the flat bed of an elevator, including elevator governor and lift car emergency braking apparatus, the wherein rope sheave in elevator governor (1) and lift car synchronous interaction, is characterized in that being connected with the physics path increment control by rope sheave (1) and then the drive mechanism of triggering lift car emergency braking apparatus on elevator governor；
Described drive mechanism includes the friction pulley (2) that a drive sleeve is connected on the sheave shaft (8) of elevator governor and first electromagnet (4) being fixed on elevator governor side plate (3), second electromagnet (9), a cam pack (5) and a travel switch (6)；
Wherein, cam pack (5) in above-mentioned is mainly made up of cam (5-2) and pedestal (5-1), wherein pedestal (5-1) is fixed on elevator governor side plate (3), cam (5-2) is movably connected on this pedestal (5-1), and this cam (5-2) is positioned at the underface of friction pulley (2), there is a clearance distance L between the two1；
The first electromagnet (4) in above-mentioned is positioned at the underface of cam pack (5), and it controls loop and electrically connects with the unlocking signal of car door lock, and in this first electromagnet (4), the stroke distances of iron core (4-1) is L2, above-mentioned iron core (4-1) is corresponding with cam (5-2), and clearance distance between the two is L3, and L2≥L1+ L3；Above-mentioned travel switch (6) is connected with the control loop signal of telecommunication of the second electromagnet (9), and its contact (6-1) is positioned on the running orbit of above-mentioned cam (5-2), and described second electromagnet (9) is matched with lift car emergency braking apparatus.
nullThe anti-slip dynamic device of flat bed of a kind of elevator the most according to claim 2，It is characterized in that above-mentioned in cam pack (5) further comprises a pivot pin (5-3)、One locking nut (5-4)、One latch segment (5-5)、One reset tension spring (5-6) and a reduction torsion spring (5-7)，And offer gathering sill (5-8) on the installation panel of its pedestal (5-1)，In above-mentioned pivot pin (5-3) runs through and enters into this gathering sill (5-8)，And on can carrying out in this gathering sill (5-8)、Lower reciprocating motion，Its axle carries out spacing upwardly through locking nut (5-4) and latch segment (5-5)，This latch segment (5-5) is positioned at the outside installing panel，Cam (5-2) in above-mentioned cam pack (5) is socketed on pivot pin (5-3)，And it is positioned at the outside of above-mentioned latch segment (5-5)，And carry out spacing by chuck (5-9)，The bottom of pedestal (5-1) is caught in above-mentioned reset tension spring (5-6) one end，The other end catches on latch segment (5-5)，Under this extension spring power effect, above-mentioned pivot pin (5-3) is against the bottom of gathering sill (5-8)，Reduction torsion spring (5-7) in above-mentioned is socketed on pivot pin (5-3)，And be positioned between latch segment (5-5) and cam (5-2)，One end of this reduction torsion spring (5-7) is plugged on latch segment (5-5)，Its other end is plugged on cam (5-2).
nullThe anti-slip dynamic device of flat bed of a kind of elevator the most according to claim 3，It is characterized in that above-mentioned in the anti-slip dynamic device of flat bed also include a positioner (7)，This positioner (7) is mainly by location bar (7-2)、Back-moving spring (7-3) and location pedestal (7-1) composition，The one end of described location bar (7-2) is provided with spacing top (7-4)，Above-mentioned location pedestal (7-1) is fixed on elevator governor side plate (3)，This location pedestal (7-1) offers a preset hole，Above-mentioned location bar (7-2) runs through this preset hole，Above-mentioned back-moving spring (7-3) is serially connected on above-mentioned location bar (7-2)，Its one end apical grafting is on the bottom surface of spacing top (7-4)，Then apical grafting preset hole in location pedestal (7-1) in the other end is offered on face (7-5)，And this back-moving spring (7-3) is in contraction-like all the time，Limit notch (5-10) is offered on cam (5-2) in above-mentioned，Spacing top (7-4) apical grafting of above-mentioned location bar (7-2) is in this limit notch (5-10)，When cam (5-2) rotates，The spacing top (7-4) of above-mentioned location bar (7-2) is deviate from the limit notch (5-10) of cam (5-2).
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| CN106044450A (en) * | 2016-06-29 | 2016-10-26 | 西继迅达（许昌）电梯有限公司 | Novel automatic trigger one-way speed limiter |
| CN105923491A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Unidirectional automatic reset speed governor capable of monitoring speed and being automatically triggered |
| CN105923490A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel anti-sliding unidirectional speed governor |
| CN105923492A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel unidirectional automatic reset speed governor capable of monitoring speed |
| CN105923499A (en) * | 2016-06-29 | 2016-09-07 | 西继迅达（许昌）电梯有限公司 | Novel automatic reset unidirectional anti-sliding speed governor capable of monitoring speed |
| CN106044449A (en) * | 2016-06-29 | 2016-10-26 | 西继迅达（许昌）电梯有限公司 | Novel one-way self-reset speed limiter capable of being triggered automatically |
| CN109476451A (en) * | 2016-09-12 | 2019-03-15 | 株式会社日立制作所 | Governor and lift appliance |
| CN106429708B (en) * | 2016-09-29 | 2019-03-26 | 克莱斯电梯（中国）有限公司 | The Cargo Lift for preventing the caused safety accident of carriage accidental movement from occurring |
| CN111268532B (en) | 2018-12-04 | 2022-08-30 | 奥的斯电梯公司 | Overspeed protection switch, overspeed governor assembly, and elevator system |
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