CN207713205U - Elevator internal contracting brake safety detection device - Google Patents

Elevator internal contracting brake safety detection device Download PDF

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Publication number
CN207713205U
CN207713205U CN201721610743.6U CN201721610743U CN207713205U CN 207713205 U CN207713205 U CN 207713205U CN 201721610743 U CN201721610743 U CN 201721610743U CN 207713205 U CN207713205 U CN 207713205U
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China
Prior art keywords
brake
band
brake arm
elevator
controller
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CN201721610743.6U
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Chinese (zh)
Inventor
郑良田
梅�清
梅一清
彭云
吴开斌
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IFE Elevators Co Ltd
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IFE Elevators Co Ltd
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Abstract

The utility model discloses a kind of elevator internal contracting brake safety detection device, including controller, contracting brake mechanism, band-type brake power control unit and detection components, controller is separately connected encoder, frequency converter and detection components, contracting brake mechanism includes first, second brake arm, first, second brake arm has the stop state for holding braked wheel tightly and is detached from the opening state of braked wheel, detection components correspond to first respectively, second brake arm is arranged, band-type brake power control unit is separately connected controller, first, second brake arm and band-type brake power supply, controller controls the action of band-type brake power control unit so that first, second brake arm is opened or stop;Elevator continuously starts in operational process, controller controls the first, second brake arm and alternately opens, and one of pair first, second brake arm is detected when elevator starts every time, therefore can effectively prevent 1 boundary's point that band-type brake is individually unable to stop elevator and occur, improve lift running safety.

Description

Elevator internal contracting brake safety detection device
Technical field
The utility model is related to elevator technology field more particularly to a kind of elevator internal contracting brake safety detection devices.
Background technology
Elevator plays increasingly important role in daily life and work, and elevator is also necessary when in use Reach the requirements such as safe and reliable, transfer efficiency height, leveling accuracy, ride comfort, while elevator must also be equipped with safeguard protection dress It sets, so as to being capable of urgent stop in Lift out of order.Wherein, elevator internal contracting brake is the important component of elevator safety stop, is Elevator keeps elevator steady in the case where stopping scalariform state, the critical component of not upper and lower car slipping.
During elevator use, make for a long time if elevator internal contracting brake occur and adjusting not in place or elevator during the installation process With situations such as band-type brake friction plate is worn in the process, it can all make the band-type brake power that band-type brake acts on host insufficient, elevator is caused to exist The terraced or long-time of stopping that operation stops cannot keep safety and steady when ladder stops not ensure not car slipping under scalariform state, especially in elevator The band-type brake power that band-type brake generates when last time operation can meet elevator stopping requirement, and band-type brake generates when elevator is run next time Band-type brake power be just insufficient for the requirement of elevator stopping, that is, in the case where elevator internal contracting brake is in 1 boundary's point, can give elevator and Passenger brings serious security risk.
Existing elevator traction machine generally uses two band-type brakes, elevator safety requirement, each band-type brake to must be able to independent stop Elevator, when preventing one band-type brake of elevator from breaking down, another band-type brake can guarantee the safe stop of elevator.If one of them is embraced Lock causes individually to be unable to stop elevator because adjusting not in place or abrasion, and when not detecting and safeguarded in time, there will be serious peace Full hidden danger may lead to the generation of safety accident.
Therefore, it is necessary to provide a kind of elevator internal contracting brake safety detection device, in the presence of solving the above-mentioned prior art Problem.
Utility model content
The purpose of this utility model is to provide a kind of elevator internal contracting brake safety detection devices, to improve lift running safety Property.
To achieve the above object, the technical solution of the utility model is:A kind of elevator internal contracting brake safety detection device is provided, Including controller, contracting brake mechanism, band-type brake power control unit and detection components;Controller has the first signal connection end and second Signal connection end, first signal connection end are connected with the encoder of traction machine to receive the pulse letter of the encoder Number, the second signal connecting pin is connected with frequency converter with output torque output order to the frequency converter;Contracting brake mechanism packet Include the first brake arm and the second brake arm of the braked wheel setting of corresponding traction machine, first brake arm, second band-type brake Arm has the stop state for holding braked wheel tightly and is detached from the opening state of braked wheel;Band-type brake power control unit is separately connected described Controller, first brake arm, second brake arm and band-type brake power supply, the controller control the band-type brake power supply control Unit acts so that first brake arm, second brake arm convert between the stop state, the opening state; Detection components correspond to first brake arm respectively, second brake arm is arranged and connects the controller, for being in First brake arm, second brake arm of the opening state are detected;When elevator continuously starts, the controller It controls first brake arm, second brake arm and is alternately in the opening state, and control the frequency converter power output Square, the controller according to the pulse signal of the encoder feedback in the stop state first brake arm or Second brake arm is detected.
Preferably, the contracting brake mechanism further include the first band-type brake coil being connected with first brake arm and with it is described The second band-type brake coil that second brake arm is connected, the controller control described first by the band-type brake power control unit Band-type brake coil, the second band-type brake coil break-make.
Preferably, the band-type brake power control unit includes first contactor and second contactor, the first contactor It is connected to alternating current zero curve, the controller, and the normally opened contact of the first contactor and the first band-type brake coil string It is coupled between the positive and negative anodes of band-type brake power supply, the second contactor is connected to alternating current zero curve, the controller, and described The normally opened contact of two contactors and the second band-type brake coil are series between the positive and negative anodes of the band-type brake power supply, the controller The first contactor, the second contactor break-make are controlled to realize the first band-type brake coil, the second band-type brake coil Break-make.
Preferably, the elevator internal contracting brake safety detection device further includes the first relay and the second relay, the control Utensil has the first relay output point, the second relay output point and male end, the both ends of first relay connect respectively altogether The first relay output point, the common end are connect, the both ends of second relay are separately connected second relay Output point, the common end, the common end are connected to alternating current firewire, and the both ends of the first contactor be separately connected it is described The both ends of first relay output point, alternating current zero curve, the second contactor are separately connected the second relay output point, city Electrical zero line.
Preferably, the elevator internal contracting brake safety detection device further includes elevator operation contactor and third relay, it is described Controller has a third relay output point, the both ends of the third relay be separately connected the third relay output point, The both ends of the common end, the elevator operation contactor are connected to the third relay output point, alternating current zero curve, and The normally opened contact of the elevator operation contactor is connected between the input terminal of transformer and the band-type brake power supply.
Preferably, the detection components include the first detection switch and the second detection switch, the main control has first Test side and the second test side, first detection switch correspond to first brake arm and first detection are mounted and connected End, second detection switch correspond to second brake arm and are mounted and connected second test side, first brake arm, Second brake arm is respectively acting on first detection switch, second detection switch when being in the opening state.
Preferably, first detection switch has the first contact surface corresponding with first brake arm, and it is described The normally opened contact of first detection switch is separately connected first test side, 24V voltages, and first brake arm is opened and contradicted It is closed the normally opened contact of first detection switch when first contact surface.
Preferably, second detection switch has the second contact surface corresponding with second brake arm, and it is described The normally opened contact of second detection switch is separately connected second test side, 24V voltages, and second brake arm is opened and contradicted It is closed the normally opened contact of second detection switch when second contact surface.
Compared with prior art, due to the elevator internal contracting brake safety detection device of the utility model, the first letter of controller Number connecting pin is connected with the encoder of traction machine to receive the pulse signal of encoder, second signal connecting pin and frequency converter It is connected with output torque output order to frequency converter, in elevator continuously starts operational process, controller controls the first band-type brake Arm, the second brake arm are alternately opened, and one of the first brake arm of elevator startup control system, second brake arm are opened every time, To be detected to another one;When detection, control frequency converter output torque to traction machine, controller receives the encoder of traction machine The current PRF signal of feedback, and compare whether current PRF signal is identical as original burst signal, if identical, judgement is in The first brake arm or the second brake arm of holding state are normal and control its opening so that elevator is run, if it is different, then at output In the first brake arm of the state of holding tightly or the fault-signal of the second brake arm.Due to successively to the first brake arm, the second brake arm Whether meet stop to require to be detected, therefore when one of them cannot meet independent stop elevator because of band-type brake power deficiency, it can To detect and carry out elevator motion control in time, it can effectively prevent 1 boundary's point that band-type brake is individually unable to stop elevator and occur, prevent Only safety accident occurs, and improves lift running safety.
Description of the drawings
Fig. 1 is the electrical block diagram of the utility model elevator internal contracting brake safety detection device.
Fig. 2 is the band-type brake power control loop schematic diagram of the utility model elevator internal contracting brake safety detection device.
Fig. 3 is the structural schematic diagram of the contracting brake mechanism and detection components of the utility model elevator internal contracting brake safety detection device.
Fig. 4 is the enlarged diagram of part A in Fig. 3.
Fig. 5 is the enlarged diagram of part B in Fig. 3.
Specific implementation mode
The embodiments of the present invention are described referring now to the drawings, similar element numbers represent similar member in attached drawing Part.
As shown in Figs. 1-3, elevator internal contracting brake safety detection device 100 provided by the utility model comprising controller 110, band-type brake power control unit 120, contracting brake mechanism 130 and detection components 140.Wherein, controller 110 has the first test side X1, the second test side X2, the first signal connection end G and second signal connecting pin Y0, the first signal connection end G and traction machine DY's Encoder PG is connected, and to receive the pulse signal of encoder PG, second signal connecting pin Y0 is connected with frequency converter 150, with Output torque output order and elevator operating instruction are to frequency converter 150 or receive the feedback signal of frequency converter 150.Contracting brake mechanism 130 include the first brake arm 131 and the second brake arm 132 of the setting of braked wheel 200 of corresponding traction machine DY, the first brake arm 131, the second brake arm 132 has the stop state for holding braked wheel 200 tightly and is detached from the opening state of braked wheel 200.Detection group Part 140 corresponds to the first brake arm 131 respectively, the second brake arm 132 is arranged and connects the first test side X1, the second test side X2, Detection components 140 are for being detected the first brake arm 131, the second brake arm 132 in the opening state.Band-type brake electricity Source control unit 120 is separately connected controller 110 and the first brake arm 131, the second brake arm 132, and controller 110 controls described Band-type brake power control unit 120 acts so that the first brake arm 131, the second brake arm 132 are in the stop state, the opening It is converted between state.When elevator starts every time, controller 110 controls one in the first brake arm 131, the second brake arm 132 Person is in the open state, to be detected to the another one in stop state, and by comparing encoder PG feedbacks when detection Current PRF signal and original burst signal whether unanimously judge whether elevator normal, and carry out operation control;And in electricity When terraced continuous startup, the first brake arm 131, the second brake arm 132 are alternately detected.
Shown in Fig. 1, frequency converter 150 have third signal connection end PQ, input terminal R, S, T and output end U, V, W, input terminal R, S, T connect alternating current, and output end U, V, W are connected to traction machine DY, third signal connection end PQ and controller 110 Second signal connecting pin Y0 is connected, and frequency converter 150 receives torque output order by third signal connection end PQ and elevator is run Instruction, and pass through connecting pin PQ feedback signals to controller 110.
Referring now to shown in Fig. 2-3, the contracting brake mechanism 130 further includes the first band-type brake coil BZ1 and the second band-type brake coil BZ2, first the first brake arm of band-type brake coil BZ1 connections 131, second the second brake arm of band-type brake coil BZ2 connections 132, the control Device 110 processed controls the first band-type brake coil BZ1, the second band-type brake coil BZ2 break-makes, Jin Ershi by band-type brake power control unit 120 Existing first brake arm 131, the opening or holding of the second brake arm 132.
It recombines shown in Fig. 1-2, the band-type brake power control unit 120 includes first contactor JBZ1, the second contact Device JBZ2 and elevator operation contactor KM, first contactor JBZ1, second contactor JBZ2, elevator operation contactor KM are all connected with Between alternating current zero curve N and controller 110.And the normally opened contact JBZ1-1 of first contactor JBZ1 and the first band-type brake coil BZ1 It is series between the positive and negative anodes of band-type brake power supply ZD;The normally opened contact JBZ2-1 of second contactor JBZ2 and the second band-type brake coil BZ2 It is series between the positive and negative anodes of band-type brake power supply ZD, a normally opened contact KM1-1 of elevator operation contactor KM is connected to transformer TB And between the input terminal of band-type brake power supply ZD, another normally opened contact KM1-2 of elevator operation contactor KM is connected to frequency converter 150 Between output end U, V, W and traction machine DY.Controller 110 controls first contactor JBZ1, second contactor JBZ2, elevator operation Contactor KM break-makes, and then realize the break-make of the first band-type brake coil BZ1, the second band-type brake coil BZ2, so that the first brake arm 131, Second brake arm 132 is opened or is held tightly.
In addition, elevator internal contracting brake safety detection device 100 further includes door lock contactor JMS, the both ends of door lock contactor JMS connect It is connected between the input terminal of transformer TB, band-type brake power supply ZD, when elevator, which starts, to be run, door lock contactor JMS is closed, and door lock connects The setting of tentaculum JMS and the conventional design that operation principle is this field, repeat no more.
Shown in Fig. 1, elevator internal contracting brake safety detection device 100 further includes the first relay K1, the second relay K2 and third relay K3, controller 110 also have the first relay output point Y1, the second relay output point Y2, third after Electric appliance output point Y3 and altogether male end M0.Wherein, the both ends of the first relay K1 are separately connected the first relay output point Y1, are total to The both ends of male end M0, the second relay K2 are separately connected the second relay output point Y2, altogether male end M0, and the two of third relay K3 End is separately connected third relay output point Y3, altogether male end M0, and male end M0 is connected to alternating current firewire L altogether.First contactor The both ends of JBZ1 are separately connected the first relay output point Y1, alternating current zero curve N, second contactor JBZ2 be connected to second after The both ends of electric appliance output point Y2, alternating current zero curve N, elevator operation contactor KM are connected to third relay output point Y3, city Electrical zero line N.Controller 110 controls the break-make of the first relay K1, the second relay K2 to realize first contactor JBZ1, second The break-make of contactor JBZ2.
Shown in Fig. 1,3-5, the detection components 140 include the first detection switch 141 and the second detection switch 142, the first detection switch 141 corresponds to the first brake arm 131 and the first test side X1 is mounted and connected, and the second detection switch 142 is right Answer the second brake arm 132 that the second test side X2 is mounted and connected.It is beaten when the first brake arm 131, the second brake arm 132 are in described When open state, the first detection switch 141, the second detection switch 142, the first test side X1 of controller 110 can be respectively acting on After the voltage signal for receiving the first detection switch 141, the first brake arm of judgement 131 is effectively opened in place;Accordingly, the second inspection After surveying the voltage signal that end X2 receives the second detection switch 142, it is determined as that the second brake arm 132 is effectively opened in place.
As shown in figure 4, first detection switch 141 has the first noumenon 1411 and set on 1411 both ends of the first noumenon First contact surface 1412, the first signal wire 1413, the first brake arm 131 of the correspondence setting of the first contact surface 1412 are simultaneously alternate therewith Every the first signal wire of one end 1413 of the normally opened contact of the first detection switch 141 connects the first test side X1, the normally opened contact The other end connect 24V voltages, when the first brake arm 131 open and contradict the first contact surface 1412 when, will make it is described first inspection The normally opened contact of slowdown monitoring switch 141 is closed and generates voltage signal.
As shown in figure 5, second detection switch 142 has the second ontology 1421 and set on 1421 both ends of the second ontology Second contact surface 1422, second signal line 1423, the second brake arm 132 of the correspondence setting of the second contact surface 1422 are simultaneously alternate therewith Every the normally opened contact of the second detection switch 142 is separately connected the second test side X2 and 24V voltage, when the second brake arm 132 is beaten When opening and contradicting the second contact surface 1422, the normally opened contact for making second detection switch 142 is closed and generates voltage signal.
Preferably, the first detection switch 141, the second detection switch 142 are the travel switch with normally opened contact, but not with this It is limited.
With reference to shown in Fig. 1-5, to the testing principle and process of the utility model elevator internal contracting brake safety detection device 100 It illustrates.
In the utility model, record has elevator under normal operating condition to be encoded in each floor position in controller 110 The pulse signal of device PG feedbacks, that is, original burst signal;When detection, controller 110 is by comparing the current of encoder PG feedbacks Whether pulse signal and original burst signal unanimously judge whether elevator is normal, and carry out operation control.
Specifically, when stopping scalariform state, the first relay K1, the second relay K2 and third relay K3 do not inhale elevator It closes, therefore first contactor JBZ1, second contactor JBZ2, elevator operation contactor KM are release conditions, elevator operation connects The normally opened contact of the normally opened contact KM1-1 of tentaculum KM, the normally opened contact JBZ1-1 of first contactor JBZ1, second contactor JBZ2 JBZ2-1 is normally open, and therefore, the first band-type brake coil BZ1 and the second band-type brake coil BZ2 are in release conditions, the first band-type brake Arm 131, the second brake arm 132 are in the stop state for holding braked wheel 200 tightly, the first contact surface of the first detection switch 141 1412 and first brake arm 131 not in contact with the second contact surface 1422 and the second brake arm 132 of the second detection switch 142 do not connect Touch, the normally opened contact of the first detection switch 141, the second detection switch 142 normally opened contact be in off-state, such as Fig. 4-5 It is shown.
When elevator starts operation for the first time, can the first brake arm 131 individually stop elevator be detected.Specifically, Door lock contactor JMS is closed, and controller 110 controls the second relay K2, third relay K3 is attracted, at this time alternating current firewire L, altogether Circuit conducting where male end M0, the second relay K2, the second relay output point Y2, second contactor JBZ2, alternating current zero curve N; Meanwhile alternating current firewire L, altogether male end M0, third relay K3, third relay output point Y3, elevator operation contactor KM, alternating current Circuit conducting where zero curve N.Therefore, the normally opened contact KM1-1 and KM1-2 of elevator operation contactor KM is attracted, while second connects The normally opened contact JBZ2-1 of tentaculum JBZ2 is attracted, and the second band-type brake coil BZ2 is made to be powered, thus the second brake arm 132 is opened and pressed Firmly the second contact surface 1422 of the second detection switch 142 causes the normally opened contact of the second detection switch 142 to be closed, controller 110 The second test side X2 receive because the normally opened contact of the second detection switch 142 be closed caused by voltage signal, to determine the Two brake arms 132 are effectively opened in place.During this, if circuit or the second band-type brake coil BZ2 break down, the second brake arm 132 cannot effectively open.
Under these conditions, the first brake arm 131 of elevator is separately in the state of stop elevator.At this point, controller 110 Torque output order is provided to frequency converter 150 by its second signal connecting pin Y0, frequency converter 150 is receiving torque output The size of output torque after instruction, the torque has been arranged in elevator debugging, this torque will make traction machine DY generate different works It is specific as follows with effect:
If the first brake arm 131 causes the power of stop elevator inadequate because adjusting not in place or abrasion, elevator traction machine DY It will be rotated under the action of torque, while elevator will follow traction machine DY to move, the encoder PG on traction machine DY is anti-simultaneously Current PRF signal is presented to controller 110, controller 110 compares current PRF signal with original burst signal, if two Person is inconsistent, then is determined as that the first brake arm 131 cannot be guaranteed because adjusting not in place, abrasion and leading to the reasons such as band-type brake power deficiency Elevator safety operation.At this point, controller 110 will control the second relay K2 and third relay K3 is disconnected, and then make open Second brake arm 132 is closed, and sends out the instruction that control torque exports to frequency converter 150 by second signal connecting pin Y0, is become Control torque exports frequency device 150 accordingly, meanwhile, controller 110 no longer responds elevator operating instruction, and in its included display screen Upper display elevator faults code, and the fault cues of the first brake arm 131 are reported, elevator needs maintenance and repair, the first brake arm 131 Band-type brake power can just respond operating instruction again after reaching service condition.
If the enough stop elevators of band-type brake power that the first brake arm 131 generates, in the moment loading that frequency converter 150 exports Under, traction machine DY will not be rotated, and the encoder PG on traction machine DY feeds back to current PRF signal and the control of controller 110 The original burst signal that device 110 records is consistent, and controller 110 is determined as that the first brake arm 131 is normal, the first brake arm 131 can independent stop elevator, can guarantee elevator safety operation.At this point, the first relay of control of controller 110 K1 is closed, from And to the first band-type brake coil BZ1 power supplies, the first brake arm 131 is opened, when the first test side X1 of controller 110 detects voltage After signal, controller 110 is determined as that the first brake arm 131 and the second brake arm 132 are effectively opened simultaneously, and elevator internal contracting brake meets peace Full service condition, and operating instruction is exported to frequency converter 150 by Y0, after frequency converter 150 receives operating instruction, respond the fortune Row instruction, to make elevator normal operation.
Accordingly, when second of startup operation of elevator, can the second brake arm 132 individually stop elevator be examined It surveys.Specifically, controller 110 first controls the first relay K1, third relay K3 is attracted, at this time alternating current firewire L, altogether male end Circuit conducting where M0, the first relay K1, the first relay output point Y1, first contactor JBZ1, alternating current zero curve N;Meanwhile Alternating current firewire L, altogether male end M0, third relay K3, third relay output point Y3, elevator operation contactor KM, alternating current zero curve N Place circuit is connected.Therefore, the normally opened contact KM1-1 and KM1-2 of elevator operation contactor KM is attracted, while first contactor The normally opened contact JBZ1-1 of JBZ1 is attracted, and the first band-type brake coil BZ1 is powered and the first brake arm 131 is made to open, the first brake arm 131 push down the first contact surface 1412 of the first detection switch 141, and the normally opened contact of the first detection switch 141 is caused to be closed, control First test side X1 of device 110 determines that the first brake arm 131 is effectively opened in place after receiving voltage signal.During this, if Circuit or the first band-type brake coil BZ1 break down, then the first brake arm 131 cannot be opened effectively.
At this point, the second brake arm 132 is separately in the state of stop elevator, controller 110 sends out torque to frequency converter 150 Output order, output torque, this torque generate different role effect to traction machine DY, drag frequency converter 150 upon receipt of the instructions Current PRF signal will be fed back to controller 110 by drawing the encoder PG on machine DY, and controller 110 is by prepulse signal and original arteries and veins It rushes signal to be compared, and elevator is controlled respectively according to different comparing results, it is specific as follows:
If prepulse signal is inconsistent with original burst signal, it is determined as that the band-type brake power of the second brake arm 132 is insufficient, no It can guarantee elevator safety operation, controller 110 controls the first relay K1 and third relay K3 relays disconnect, and makes first armful Lock arm 131 is closed, and sends out the instruction that control torque exports to frequency converter 150, and control torque exports frequency converter 150 accordingly, together When, controller 110 no longer responds elevator operating instruction, and in its included display screen display elevator faults code, and reports the The fault cues of two brake arms 132, elevator need maintenance and repair, just may be used after the band-type brake power arrival service condition of the second brake arm 132 Operating instruction is responded again.
If prepulse signal is consistent with original burst signal, controller 110 is determined as that the second brake arm 132 is normal, the Two brake arms 132 can independent stop elevator, can guarantee elevator safety operation, then control the second relay K2 and be closed, to To the second band-type brake coil BZ2 power supplies, the second brake arm 132 is opened, after the second brake arm 132 is opened in place, controller 110 exports Operating instruction is to frequency converter 150, after frequency converter 150 receives operating instruction, the operating instruction is responded, to make elevator run.
When elevator third time starts operation, then the first brake arm 131 is detected again, the 4th startup fortune of elevator When row, then the second brake arm 132 is detected again, such cycle alternation, that is, all to the first band-type brake when elevator starts every time One of arm 131, second brake arm 132 are detected, and alternately to the first band-type brake in elevator continuously starts operational process Arm 131, the second brake arm 132 are detected, therefore, when the band-type brake of one of the first brake arm 131, the second brake arm 132 When power is unsatisfactory for independent stop elevator, it can be timely detected.
It is to be appreciated that in the utility model to the detection ordering of the first brake arm 131, the second brake arm 132 not more than It states description to be limited, the detection ordering of the two is exchanged to the realization for having no effect on technical solutions of the utility model.
To sum up, due to the elevator internal contracting brake safety detection device 100 of the utility model, the first signal of controller 110 connects End G is met to be connected with encoder PG to receive the pulse signal of encoder PG, second signal connecting pin Y0 and 150 phase of frequency converter Connection is with output torque output order to frequency converter 150, when elevator continuously starts operational process, the control of controller 110 first Brake arm 131, the second brake arm 132 are alternately opened, and every time in startup control system the first brake arm 131, the second brake arm 132 One of open, to require to be detected to whether another one meets independent stop;When detection, controller 110 controls frequency converter For 150 output torques to traction machine DY, controller 110 receives the current PRF signal of encoder PG feedbacks, and compares current PRF Whether signal is identical as original burst signal, if identical, is in the first brake arm 131 or the second brake arm of holding state 132 is normal and control it and open so that elevator is run, if it is different, then first brake arm 131 or the of the output in holding state The fault-signal of two brake arms 132.Due to successively to the first brake arm 131, the second brake arm 132 whether meet stop require into Row detection, therefore when one of them cannot meet independent stop elevator because of band-type brake power deficiency, can detect and carry out in time Elevator motion control can effectively prevent 1 boundary's point that band-type brake is individually unable to stop elevator and occur, prevents safety accident, improve Lift running safety.
It above disclosure is merely preferred embodiments of the utility model, certainly cannot be new to limit this practicality with this The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered Range.

Claims (8)

1. a kind of elevator internal contracting brake safety detection device, which is characterized in that including:
Controller has the first signal connection end and second signal connecting pin, first signal connection end and traction machine Encoder is connected to receive the pulse signal of the encoder, and the second signal connecting pin is connected with frequency converter to export Torque output order is to the frequency converter;
Contracting brake mechanism comprising the first brake arm and the second brake arm of the braked wheel setting of corresponding traction machine, described first armful Lock arm, second brake arm have the stop state for holding braked wheel tightly and are detached from the opening state of braked wheel;
Band-type brake power control unit is separately connected the controller, first brake arm, second brake arm and band-type brake Power supply, the controller control the band-type brake power control unit action so that first brake arm, second brake arm It is converted between the stop state, the opening state;
Detection components, correspond to first brake arm, second brake arm is arranged and connects the controller respectively, are used for First brake arm, second brake arm in the opening state are detected;
When elevator continuously starts, the controller controls first brake arm, second brake arm and is alternately beaten in described Open state, and the frequency converter output torque is controlled, the controller is according to the pulse signal of the encoder feedback to being in First brake arm or second brake arm of the stop state are detected.
2. elevator internal contracting brake safety detection device as described in claim 1, which is characterized in that the contracting brake mechanism further includes and institute State the first band-type brake coil and the second band-type brake coil being connected with second brake arm that the first brake arm is connected, the control Device processed controls the first band-type brake coil, the second band-type brake coil break-make by the band-type brake power control unit.
3. elevator internal contracting brake safety detection device as claimed in claim 2, which is characterized in that the band-type brake power control unit packet First contactor and second contactor are included, the first contactor is connected to alternating current zero curve, the controller, and described The normally opened contact of one contactor and the first band-type brake coil are series between the positive and negative anodes of band-type brake power supply, the second contactor It is connected to alternating current zero curve, the controller, and the normally opened contact of the second contactor and the second band-type brake coil string It is coupled between the positive and negative anodes of the band-type brake power supply, the controller controls the first contactor, the second contactor break-make To realize the break-make of the first band-type brake coil, the second band-type brake coil.
4. elevator internal contracting brake safety detection device as claimed in claim 3, which is characterized in that further include the first relay and second Relay, the controller have the first relay output point, the second relay output point and male end altogether, first relay The both ends of device are separately connected the first relay output point, the common end, and the both ends of second relay are separately connected The second relay output point, the common end, the common end are connected to alternating current firewire, and the two of the first contactor End is separately connected the first relay output point, alternating current zero curve, and the both ends of the second contactor are separately connected described second Relay output point, alternating current zero curve.
5. elevator internal contracting brake safety detection device as claimed in claim 4, which is characterized in that further include elevator operation contactor and Third relay, the controller have a third relay output point, and the both ends of the third relay are separately connected described the Three relay output points, the common end, it is defeated that the both ends of the elevator operation contactor are connected to the third relay Go out point, alternating current zero curve, and the normally opened contact of the elevator operation contactor is connected to the input of transformer and the band-type brake power supply Between end.
6. elevator internal contracting brake safety detection device as described in claim 1, which is characterized in that the detection components include the first inspection Slowdown monitoring switch and the second detection switch, the main control have the first test side and the second test side, first detection switch pair Answer first brake arm that first test side is mounted and connected, second detection switch corresponds to the second brake arm peace Second test side is filled and connects, first brake arm, second brake arm are made respectively when being in the opening state For first detection switch, second detection switch.
7. elevator internal contracting brake safety detection device as claimed in claim 6, which is characterized in that first detection switch have with Corresponding first contact surface of first brake arm, and the normally opened contact of first detection switch is separately connected described first Test side, 24V voltages, first brake arm make the normal of first detection switch when opening and contradicting first contact surface Open contact closure.
8. elevator internal contracting brake safety detection device as claimed in claim 6, which is characterized in that second detection switch have with Corresponding second contact surface of second brake arm, and the normally opened contact of second detection switch is separately connected described second Test side, 24V voltages, second brake arm make the normal of second detection switch when opening and contradicting second contact surface Open contact closure.
CN201721610743.6U 2017-11-27 2017-11-27 Elevator internal contracting brake safety detection device Active CN207713205U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108002162A (en) * 2017-11-27 2018-05-08 快意电梯股份有限公司 Elevator internal contracting brake safety detection device and detection method
CN109466985A (en) * 2018-12-12 2019-03-15 上海长江斯迈普电梯有限公司 A kind of double embrace lock intelligence control system with warning function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108002162A (en) * 2017-11-27 2018-05-08 快意电梯股份有限公司 Elevator internal contracting brake safety detection device and detection method
CN108002162B (en) * 2017-11-27 2023-12-08 快意电梯股份有限公司 Elevator band-type brake safety detection device and detection method
CN109466985A (en) * 2018-12-12 2019-03-15 上海长江斯迈普电梯有限公司 A kind of double embrace lock intelligence control system with warning function
CN109466985B (en) * 2018-12-12 2021-02-09 上海长江斯迈普电梯有限公司 Double-band-type brake intelligent control system with early warning function

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