CN201002902Y - Control device used for elevator overspeed protective device - Google Patents
Control device used for elevator overspeed protective device Download PDFInfo
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- CN201002902Y CN201002902Y CNU2006201122967U CN200620112296U CN201002902Y CN 201002902 Y CN201002902 Y CN 201002902Y CN U2006201122967 U CNU2006201122967 U CN U2006201122967U CN 200620112296 U CN200620112296 U CN 200620112296U CN 201002902 Y CN201002902 Y CN 201002902Y
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- elevator
- power supply
- electromagnet
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Abstract
The utility model provides a control device used in overspeed protection device of elevator, which can improve the reliability and braking efficiency of the protection device. The utility model comprises a trigger mechanism and a wire holding braking mechanism. The control device comprises an over speed detecting device which comprises an upper system over speed protection electrical switch that is connected with the external power source and a trigger electromagnet in series. When the elevator is normal state, the electrical switch is at the closed state and the trigger electromagnet is at the power on state; when the elevator is at the state of overspeed operation, the electrical switch is at break off state and the trigger electromagnet is at the break off state to make the trigger mechanism finish triggering so as to brake the elevator through the wire holding braking mechanism.
Description
Technical field
The utility model relates to a kind of control setup that is used for elevator up-running over-speed protection, meets the regulation of associated safety standard GB7588-2003, and when ascending for elevator exceeded the speed limit, this device can reliably be implemented the purpose of up-running over-speed protection.
Background technology
In service at elevator, owing to Control Failure, traction deficiency, brake failure or reasons such as braking force is not enough and overload drags, hoist ropes fracture all can cause the car hypervelocity and fall, therefore must take reliable protective measure.
The control setup of existing overspeed protection device comprises overspeed testing apparatus and trigger mechanism control setup.Firing control is divided into mechanical type and electromagnetic type.For the mechanical type triggering mode, overspeed testing apparatus detects ascending for elevator when hypervelocity action, and device (mostly being brake cable) the pulling clamping device by a machinery carries out elevator brake.Triggering mode for electromagnetic type, be that overspeed testing apparatus detects ascending for elevator when hypervelocity action, by on-off signal, action command is sent in the control setup of trigger mechanism, make by control setup then and trigger the electromagnet power supply connection and must carry out elevator brake by electronic do pulling clamp structure.
For the mode of existing Purely mechanical, owing to all use the mechanical device ways of connecting, material hardness is arranged, yield strength, requirements such as toughness need be changed to satisfy the requirement of mechanical characteristics accordingly for overspeed testing apparatus.Because how trigger mechanism connects with brake cable and overspeed testing apparatus; the reason overspeed testing apparatus of arranging owing to machine room and the trigger mechanism of protection device for over-speed ascending are apart from far away; for brake cable in the long life-span; temperature characterisitics etc. have strict demand, are difficult to move accurately and reliably clamping device
For the mode of existing electromagnetic type, after the overspeed testing apparatus switch motion, need send into control unit to this on-off signal, carry out logical process by this control unit again, trigger the power supply of electromagnet by the trigger circuit conducting.Here the switch of overspeed testing apparatus is not participated in the power supply control that triggers electromagnet directly, carries out logic control but passed through control unit, has increased the trouble point.Because in above-mentioned prior art; control unit makes and triggers the electromagnet power supply conducting and move and spur clamping device to reach this electromagnet; like this because the long-time electromagnet that triggers is in the outage off position; when if precarious position comes interim triggering electromagnet power supply return conductors interruption or electromagnet ontology to move; whole protection device for over-speed ascending has just lost effect, the danger that may cause lift car to rush to summit.
The utility model content
Therefore, the utility model provides a kind of control setup that has overcome the elevator overspeed protecting device of above-mentioned technical matters, in particular for the up-running over-speed protection of elevator, to improve the reliability and the brake efficiency of fender guard.
According to one side of the present utility model; a kind of control setup that is used for elevator overspeed protecting device is provided; described elevator overspeed protecting device comprises trigger mechanism and folder rope stop mechanism; described control setup comprises: overspeed testing apparatus; comprise the up-running over-speed protection electric switch; the external power supply that is electrically connected in series in described electric switch and trigger electromagnet; under elevator is in normal operating condition; described electric switch is in closure state and triggers electromagnet and is in "on" position; be under the up overspeed state at elevator; described electric switch is in off-state and triggers electromagnet and is in off-position and makes trigger mechanism finish triggering, thereby by folder rope stop mechanism elevator is braked.
Preferably, also comprise the change-over swith and the backup power that are subjected to external power supply control that are electrically connected with external power supply, described change-over swith externally power supply does not have under the state of electricity described backup power is electrically connected in series in and cuts off external power supply with described change-over swith, described electric switch and described triggering electromagnet.
Preferably, described change-over swith is a relay, and described backup power is a storage battery.
According to an example of the present utility model, described triggering electromagnet comprises magnet coil, triggers armature and elastic element, be in described triggering armature under the "on" position and under the elastic force effect of the electromagnetic induction power of magnet coil and elastic element, be in energising magnet attracted position triggering electromagnet, be in and be in the position that outage magnet discharges under the off-position under the elastic force effect of described triggering armature at elastic element triggering electromagnet.Preferably, described elastic element is a spring.
So the utlity model has following significant technique effect, operating speed detecting device switch directly cuts off the power supply that triggers electromagnet, in control, directly effectively, can avoid the reheat treatment of prior art, and reduce contingent trouble point this on-off signal.Use backup power, under the precarious position of non-ascending for elevator hypervelocity, this protection device for over-speed ascending for elevator can not moved in the regular hour, leave grace time handle for answer of elevator power supply or maintainer.Can avoid occurring conductor in addition and interrupt, the bad critical fault state that waits of electromagnet action, the product of energising action has improved safety relatively.
Description of drawings
Fig. 1 is the structural representation of elevator overspeed protecting device;
Fig. 2 A and Fig. 2 B are according to the lateral plan of the overspeed testing apparatus of the elevator overspeed protecting device of an embodiment of the present utility model and formal figure;
Fig. 3 is the profile scheme drawing according to the triggering electromagnet of the trigger mechanism of an embodiment of the present utility model;
Fig. 4 is the structure cross-sectional schematic according to the triggering electromagnet of the trigger mechanism of an embodiment of the present utility model, has shown the state of the electromagnet under off-position;
Fig. 5 is the structure cross-sectional schematic according to the triggering electromagnet of the trigger mechanism of an embodiment of the present utility model, has shown at the state that gets the electromagnet under the electricity condition;
Fig. 6 is the electric control loop principle schematic according to the triggering control setup of an embodiment of the present utility model.
The specific embodiment
At first, with reference to the structure of Fig. 1 explanation according to the lift car overspeed protection device 10 of a specific embodiment of the present invention, this fender guard comprises rope grip mechanism, trigger mechanism and Bringing-back mechanism (not shown).Wherein trigger mechanism comprises triggering electromagnet 29, triggering armature 30, triggering connection and the connecting panel that blocking device, hook plate 42 and an end are hinged on the slip main shaft 32 and the other end engages with hook plate.The action of the triggering electromagnet by flip flop equipment changes the position of triggering armature 30, trigger connection and blocking device, hook plate 42 and connecting panel action release slip main shaft 32 thereby make, slip main shaft 32 under the effect of the elastic force of energy stroage spring along deep-slotted chip breaker 20 from the bottom dead center position upward movement, to finish trigger action, so make the action of folder rope support structure so that steel rope is carried out limit speed for braking condition.
The present invention realizes by overspeed testing apparatus and triggering control setup the control of the action of triggering electromagnet.Fig. 2 A and Fig. 2 B have shown the scheme drawing of the speed control unit of a specific embodiment of the present invention.The overspeed testing apparatus of Fig. 2 A and 2B comprises governor sheave 100 and centrifugal actuating mechanism 105; governor sheave is by being connected to the speed limiter wire rope driven rotary of car; when the ascending for elevator direction exceeds the speed limit; the rotating speed of rope sheave 100 surpasses predetermined value, so the pouring weight (not shown) of centrifugal actuating mechanism moves to the position that makes 101 actions of up-running over-speed protection electric switch.Though the embodiment of Fig. 2 A of the present invention and 2B only enumerates a kind of structure of concrete velocity limiter overspeed testing apparatus, also can adopt in the prior art other different structure or the velocity limiter speed of the different action principles structure of surveying detecting device.
According to the electrical principle scheme drawing of the triggering control setup of a specific embodiment of the present invention as shown in Figure 6.Trigger control setup comprise the external power supply 110 that is cascaded, up protection electric switch 101, trigger electromagnet 29 and power supply relay 103 and in parallel with external power supply 110 and with power supply relay 103 bonded assembly storage batterys 120.Power supply relay 103 plays the effect whether the monitoring external power supply has electricity, when external power supply has electricity, this actuating of relay, relay contact A becomes closure state by often opening, the contact B of relay 103 is by the normally closed off-state that becomes, this moment, electric current was the coil that flows into triggering electromagnet 29 with external power source from the loop at relay contact A place, otherwise electric current is the coil that flows into triggering electromagnet 29 with inner standby battery 120 power supplies from the loop at the B place, contact of relay 103 when external power supply cuts off the power supply.Under the state that Fig. 6 shows, relay contact A is an open mode, and the contact B of relay 103 is a closure state, and at this moment external power supply is in electroless state, and the coil of electromagnet 29 is by storage battery 120 power supplies.
Shown scheme drawing at Fig. 3 to Fig. 5 according to the triggering electromagnet of a specific embodiment of the present invention.When in normal working, be that the coil 41 of electromagnet 29 is during by external power supply or storage battery power supply, the triggering armature 30 of electromagnet 29 overcomes spring 40 under the effect of the magnetic force of coil 41 elastic force is in energising magnet attracted position, as solid line among Fig. 3 and position shown in Figure 5.When in action during mode of operation, when promptly the power supply of magnet spool cut off, the armature 30 of this electromagnet 29 was because the position that the outage magnet that the effect of spring force is reset to discharges, as dotted line among Fig. 3 and position shown in Figure 4.When the armature of electromagnet 29 was in the position of outage magnet release, as shown in Figure 1, trigger mechanism moved, and made the action of folder rope support structure so that steel rope is carried out limit speed for braking condition.
Below.Specifically describe the concrete control method that is used for the control setup of elevator up-running over-speed protection of the present invention.
According to one embodiment of present invention, when overspeed testing apparatus detected ascending for elevator direction hypervelocity, up protection electric switch 101 actions on this detecting device became off-state by closure state.Because triggering the power supply of electromagnet, this switch direct control is communicated with, the outage of triggering electromagnet, armature 30 is resetted and be in the position that outage magnet discharges by elastic element, trigger structure and finish and trigger so that the rope grip mechanism braking maneuver makes the car stop thereby make such as spring.Owing to use the electric switch of overspeed testing apparatus directly to cut off the power supply that triggers electromagnet, in control, directly effectively, can avoid the reheat treatment of prior art, and reduce contingent trouble point to this on-off signal
According to another embodiment of the invention; when artificial outage of external power supply or equipment power failure; because the precarious position of up hypervelocity does not take place; this protection device for over-speed ascending does not need action; need reset again to this fender guard behind the of short duration power interruption recovering avoiding, thus when outage by triggering before the electromagnet action by external power supply and switch to backup power supplying with the power supply that triggers electromagnet 29 such as storage battery 120 such as the power supply controlled switch of power supply relay 103.By using backup power, under the precarious position of non-ascending for elevator hypervelocity, this protection device for over-speed ascending for elevator can not moved in the regular hour, leave grace time handle for answer of elevator power supply or maintainer
According to still another embodiment of the invention; action for whole protection device for over-speed ascending is to disconnect by means of the power supply that triggers electromagnet finishing; like this in the process of the whole normal operation of elevator; this electromagnet is in the state of energising always; after 101 actions of the up protection switch on the overspeed testing apparatus, the electromagnet outage, the electromagnetism confining force of electromagnet disappears; by its in-to-in elastic element, make it trigger the action of armature movement pulling folder rope stop mechanism.When occurring triggering the critical fault of electromagnet power supply return conductors interruption,, be in the actv. mode of operation in addition to guarantee this protection device for over-speed ascending for guaranteeing safety action in time always.
Elevator up-running over-speed protection control setup of the present invention can also improve on the basis of the foregoing description and change.For example can save such as the backup power of storage battery and replace power supply relay, for example external power supply be switched on and detect and then carry out the device of the switching controls of power supply by semiconductor chip with further simplified structure or with other power supply handover module.Up protection electric switch of the present invention in addition can make of the prior art any finish circuit and engage and open circuited switch.
Claims (5)
1. control setup that is used for elevator overspeed protecting device; it is characterized in that; described elevator overspeed protecting device is included in trigger mechanism and the folder rope stop mechanism that triggers respectively under the ascending for elevator overspeed state and elevator is braked, and described control setup comprises:
Overspeed testing apparatus, be included under the elevator normal operating condition closed and under ascending for elevator overspeed state open circuited up-running over-speed protection electric switch,
The external power supply that is electrically connected in series in described electric switch and at energising under the elevator normal operating condition and the triggering electromagnet that under ascending for elevator overspeed state, cuts off the power supply.
2. device according to claim 1, it is characterized in that, also comprise the change-over swith and the backup power that are subjected to external power supply control that are electrically connected with external power supply, described change-over swith externally power supply does not have under the state of electricity described backup power is electrically connected in series in and cuts off external power supply with described change-over swith, described electric switch and described triggering electromagnet.
3. device according to claim 2 is characterized in that described change-over swith is a relay, and described backup power is a storage battery.
4. according to the described device of one of claim 1-3, it is characterized in that, described triggering electromagnet comprises magnet coil, triggers armature and elastic element, be in that described triggering armature is in energising magnet attracted position under the "on" position triggering electromagnet, be in that described triggering armature is in the position that outage magnet discharges under the off-position triggering electromagnet.
5. device according to claim 4 is characterized in that described elastic element is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201122967U CN201002902Y (en) | 2006-06-30 | 2006-06-30 | Control device used for elevator overspeed protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201122967U CN201002902Y (en) | 2006-06-30 | 2006-06-30 | Control device used for elevator overspeed protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201002902Y true CN201002902Y (en) | 2008-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201122967U Expired - Lifetime CN201002902Y (en) | 2006-06-30 | 2006-06-30 | Control device used for elevator overspeed protective device |
Country Status (1)
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| CN (1) | CN201002902Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102070053A (en) * | 2010-10-26 | 2011-05-25 | 西子奥的斯电梯有限公司 | Test device of elevator car ascending overspeed protection device |
| CN101759118B (en) * | 2010-01-01 | 2012-08-22 | 江苏能建机电实业集团有限公司 | Anti-over speed fall protection mechanism |
| CN108698790A (en) * | 2016-02-26 | 2018-10-23 | 株式会社日立制作所 | Elevator and rescue method for controlling of operation |
| CN109384120A (en) * | 2017-08-08 | 2019-02-26 | 杭州沪宁电梯部件股份有限公司 | A kind of elevator non-faulting power loss trigger protection device |
| CN114728760A (en) * | 2020-02-20 | 2022-07-08 | 株式会社日立制作所 | Elevator device |
-
2006
- 2006-06-30 CN CNU2006201122967U patent/CN201002902Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759118B (en) * | 2010-01-01 | 2012-08-22 | 江苏能建机电实业集团有限公司 | Anti-over speed fall protection mechanism |
| CN102070053A (en) * | 2010-10-26 | 2011-05-25 | 西子奥的斯电梯有限公司 | Test device of elevator car ascending overspeed protection device |
| CN102070053B (en) * | 2010-10-26 | 2012-10-10 | 西子奥的斯电梯有限公司 | Test device of elevator car ascending overspeed protection device |
| CN108698790A (en) * | 2016-02-26 | 2018-10-23 | 株式会社日立制作所 | Elevator and rescue method for controlling of operation |
| CN108698790B (en) * | 2016-02-26 | 2019-12-24 | 株式会社日立制作所 | Elevator and rescue operation control method |
| CN109384120A (en) * | 2017-08-08 | 2019-02-26 | 杭州沪宁电梯部件股份有限公司 | A kind of elevator non-faulting power loss trigger protection device |
| CN109384120B (en) * | 2017-08-08 | 2024-04-02 | 杭州沪宁电梯部件股份有限公司 | Non-fault power-off trigger protection device for elevator |
| CN114728760A (en) * | 2020-02-20 | 2022-07-08 | 株式会社日立制作所 | Elevator device |
| CN114728760B (en) * | 2020-02-20 | 2023-10-31 | 株式会社日立制作所 | Elevator device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080109 |
|
| EXPY | Termination of patent right or utility model |