CN203728358U - Speed limiter of elevator - Google Patents
Speed limiter of elevator Download PDFInfo
- Publication number
- CN203728358U CN203728358U CN201320676368.0U CN201320676368U CN203728358U CN 203728358 U CN203728358 U CN 203728358U CN 201320676368 U CN201320676368 U CN 201320676368U CN 203728358 U CN203728358 U CN 203728358U
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- elevator
- master controller
- monitoring device
- brake
- plc
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Abstract
The utility model discloses a speed limiter of an elevator. The speed limiter comprises a brake apparatus of the elevator, a master controller, a safety circuit state monitoring device and a rotation monitoring device. The master controller is connected with a signal output terminal of the safety circuit state monitoring device, a signal output terminal of the rotation monitoring device and a control signal input terminal of the brake apparatus of the elevator by data input and output ports respectively. The speed limiter has the advantages that the brake apparatus of the elevator, the master controller, the safety circuit state monitoring device and the rotation monitoring device are organically combined with one another, and internal programs of the master controller can transmit instructions to trigger the brake apparatus of the elevator when the elevator moves without receiving running instructions, so that the elevator can be stopped on guide rails, a safety factor of the elevator can be increased, and the speed limiter is favorable for guaranteeing safe running of the elevator.
Description
Technical field
The utility model relates to a kind of control setup, especially relates to a kind of control setup of speed-slackening signal.
Background technology
At present, elevator faults divides two kinds substantially: a kind of for elevator receive operating instruction and in operational process occur hypervelocity fault; The another kind of improper displacement fault of elevator happening suddenly in the time stopping and not receiving operating instruction for each layer for elevator.Existing elevator safety control system can only be made response with regard to the first situation, in the time that elevator speed exceedes velocity limiter setting speed, triggers corresponding safety device, and it is rested on lift car braking on elevator rail, to keep quiescence.But walk rate can not exceed velocity limiter setting speed in the time that elevator happens suddenly improper displacement in the time that each floor stops, at this moment elevator governor can not made response action, and elevator can not stop, and this has just brought huge potential safety hazard to the use of elevator.Therefore need a kind of speed-limit device, this velocity limiter can be realized and not obtain in the situation of operating instruction when elevator, and elevator triggers brake equipment work while there is displacement, prevents unexpected generation.
Utility model content
The purpose of this utility model is to provide a kind of elevator governor, solves elevator in the time that floor stops, meeting accident displacement and technical matters that cannot stop.
Elevator governor of the present utility model, comprise brake device for elevator, also comprise master controller, safety return circuit state monitoring apparatus, rotate monitoring device, master controller connects respectively the signal output terminal of safety return circuit state monitoring apparatus, the signal output terminal that rotates monitoring device, the control signal input terminal of brake device for elevator by data input/output port.
Described brake device for elevator comprises wire holder, towing machine, rope sheave hub brake, rotating the signal output terminal of monitoring device and the first data input/output port of master controller is connected, the signal output terminal of safety return circuit state monitoring apparatus is connected with the second data input/output port of master controller, the 3rd data input/output port of master controller connects the control signal input terminal of wire holder in elevator device, the 4th data input/output port of master controller connects the control signal input terminal of towing machine, the 5th data input/output port of master controller connects the control signal input terminal of rope sheave hub brake.
Described safety return circuit state monitoring apparatus comprises the sensor being connected in elevator signal control system, and this sensor is used for the signal of the on off state that gathers gate, layer door.
Described rotation monitoring device comprises signal detecting part and is arranged on the detected parts on rotatable parts.
Described brake device for elevator comprises electromagnet, pull bar, roller, roller, wheel hub.Steel rope is connected with the safety tongs of elevator by wheel hub, in the time that rope sheave hub brake receives effective control signal by control signal input terminal, electromagnet works and pulls down pull bar, thereby roll downwards and hold wheel hub tightly it can not be rotated at drive bottom roller, the roller of pull bar, steel rope tension elevator safety gear makes elevator brake.
The utility model has the advantage of: reliable in action, while preventing elevator accidental movement, elevator can not get the generation of stop RST, prevents that the car sedimentation that the normal upper and lower passenger of elevator or lade cause is mistaken as the generation that accidental movement causes elevator stopping situation.Can avoid in situation that car door do not close completely simultaneously, due to control system break down the elevator that causes start with command speed and do not make action may, make elevator safer.A set of car safety state-detection and the braking force control system of independent operating outside apparatus for controlling elevator are realized, the safety while greatly having improved elevator device flat bed.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Brief description of the drawings
Fig. 1 is the hardware structure schematic diagram of the utility model elevator governor;
Fig. 2 is the circuit connection diagram of the utility model elevator governor;
Fig. 3 is the structural representation of the rope sheave hub brake of the utility model elevator governor.
Specific embodiment
As shown in Figure 1, elevator governor of the present utility model comprises master controller PLC, safety return circuit state monitoring apparatus A, rotates monitoring device B, brake device for elevator C;
Master controller PLC connects respectively the signal output terminal of safety return circuit state monitoring apparatus A, the signal output terminal that rotates monitoring device B, the control signal input terminal of brake device for elevator C by data input/output port;
Master controller PLC, the status signal changing for receiving the elevator signal control system of safety return circuit state monitoring apparatus A collection, receive the elevator governor rope sheave of rotation monitoring device B collection or drive the coherent signal of the anglec of rotation of the miscellaneous part rotating by it, and status signal and the anglec of rotation are judged to forming brake control signal exports;
Safety return circuit state monitoring apparatus A, the status signal the output that change for gathering elevator signal control system;
Rotate monitoring device B, for adopting elevator governor rope sheave or driving the coherent signal of the anglec of rotation of the miscellaneous part rotating also to export by it;
Brake device for elevator C, makes corresponding actions for the brake control signal that receives master controller PLC.
As shown in Figure 2, the signal output terminal that rotates monitoring device B is connected with the first data input/output port In0 of master controller PLC, the signal output terminal of safety return circuit state monitoring apparatus A is connected with the second data input/output port In1 of master controller PLC, brake device for elevator C comprises wire holder, towing machine, rope sheave hub brake, the 3rd data input/output port Out0 of master controller PLC connects the control signal input terminal of wire holder in elevator device, the 4th data input/output port Out1 of master controller PLC connects the control signal input terminal of towing machine, the 5th data input/output port Out2 of master controller PLC connects the control signal input terminal of rope sheave hub brake.
In the present embodiment, master controller PLC adopts general PLC treater, to reduce production costs, makes full use of the reliability verification that treater brought compared with the long production cycle.
In the present embodiment, safety return circuit state monitoring apparatus A comprises the voltage sensor or current sensor or the electromagnetic sensor that are connected in elevator door, gate safety return circuit, for gathering the signal of elevator door, gate switch state.
In the present embodiment, rotating monitoring device B comprises and is arranged on elevator governor rope sheave or drives rotary encoder on the parts 1 that rotate or electromagnetism paster and the corresponding detection part for detection of rotary encoder through signals or electromagnetism pad signal by it.
On the present embodiment basis, safety return circuit state monitoring apparatus A can also comprise and is connected on the voltage sensor in lift car leveling loop or current sensor or electromagnetic sensor in elevator signal control system, gathers flat bed and car status signal.
In the present embodiment, other parts that rotate at elevator governor rope sheave or by its drive or any physical parts that rotate with elevator lifting evenly sticked little magnetic core on one week, detect turn signal for electromagnetic sensor, or drive on other parts that rotate or any physical parts that rotate with elevator lifting and install rotary encoder additional for detection of turn signal at elevator governor rope sheave or by it.
Conventionally, gate, layer door switch place control loop are made up of magnet 2, wire 3, lock-switch S, power supply P, resistance R, safety return circuit state monitoring apparatus A detects safety return circuit state with electromagnetic induction element, and electromagnetic induction element adopts voltage sensor or current sensor or electromagnetic sensor.
As shown in Figure 3, in the present embodiment, brake device for elevator adopts rope sheave hub brake, comprises electromagnet 3-1, pull bar 3-2, roller 3-3, roller 3-4, wheel hub 3-5.Steel rope is connected with the safety tongs of elevator by wheel hub 3-5, in the time that rope sheave hub brake receives effective control signal by control signal input terminal, electromagnet 3-1 works and pulls down pull bar 3-2, thereby holding wheel hub 3-5 tightly in drive bottom roller 3-3, the roller 3-4 of pull bar 3-2 rolling downwards can not rotate it, steel rope tension elevator safety gear, make safety tongs act on elevator, thereby make elevator brake.
In the present embodiment, by safety return circuit state monitoring apparatus, A records useful signal, feed back to PLC, PLC starts to receive the signal that rotation monitoring device B collects, and it is analyzed, judge whether elevator translocation distance exceedes maximum safety displacement, thereby determine whether to send instruction triggers brake device for elevator C, by elevator stopping on guide rail.
In actual application, master controller PLC internal processes is set a maximum anglec of rotation (this maximum anglec of rotation is according to the safe translocation distance of the maximum of elevator and elevator governor rope sheave or drive the diameter of other parts that rotate or any physical parts that rotate with elevator lifting to set by it), the signal that master controller PLC gathers rotation monitoring device B is analyzed judgement, if the anglec of rotation exceedes the maximum anglec of rotation of setting, master controller PLC sends instruction triggers brake device for elevator C, if the anglec of rotation does not exceed the maximum anglec of rotation of setting, master controller PLC does not respond.
In the time that elevator cage door, layer door are closed, switch S is closed, and has electric current to pass through in safety return circuit, has the wire 3 of electric current to walk around magnet 2 and generates an electromagnetic field, and safety return circuit state monitoring apparatus A detects electromagnetic field, obtains an invalid signals and sends into PLC;
In the time that elevator cage door, layer door are opened, switch S is opened, no current in safety return circuit, and safety return circuit state monitoring apparatus A can't detect electromagnetic field, obtains a useful signal and sends into PLC.
Master controller PLC receives safety return circuit state monitoring apparatus A and rotates the signal of monitoring device B and determine whether and send instruction triggers brake device for elevator C, by elevator stopping on guide rail.
This elevator governor specific works process is, in the time that elevator is in running order by safety return circuit state monitoring apparatus A detect in real time elevator cage door, whether a layer door switch place safety return circuit has electric current.
The rotation situation of the physical unit that rotation monitoring device B rotates with elevator lifting arbitrarily to elevator governor rope sheave or by other parts or other of its drive is carried out Real-Time Monitoring.
If gate, layer door have electric current in closed safe loop, A send invalid signals by input/output port In0 to PLC, now PLC does not receive and rotates the signal that monitoring device B collects.
If gate, layer door do not have no current in complete closed safe loop, A send useful signal by input/output port In0 to PLC, now PLC starts to receive the signal that rotation monitoring device B collects, and determine whether the maximum anglec of rotation that exceedes setting, if the anglec of rotation exceedes the maximum anglec of rotation of setting, PLC internal processes sends instruction triggers brake device for elevator C, and elevator safety is stopped, if the anglec of rotation does not exceed the maximum anglec of rotation of setting, PLC does not respond.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skill in the art make the technical solution of the utility model, all should fall in the definite protection domain of the utility model claims.
Claims (3)
1. an elevator governor, comprise master controller and brake device for elevator, it is characterized in that, also comprise safety return circuit state monitoring apparatus (A), rotate monitoring device (B), described safety return circuit state monitoring apparatus (A) comprises and is connected on elevator door, voltage sensor in gate safety return circuit or current sensor or electromagnetic sensor, described rotation monitoring device (B) comprises and is arranged on elevator governor rope sheave or drives rotary encoder on the parts (1) that rotate or electromagnetism paster and for detection of the corresponding detection part of rotary encoder through signals or electromagnetism pad signal by it.
2. elevator governor according to claim 1, it is characterized in that, described brake device for elevator comprises wire holder, towing machine, rope sheave hub brake, wherein rope sheave hub brake comprises electromagnet (3-1), pull bar (3-2), roller (3-3), roller (3-4), wheel hub (3-5), steel rope is connected with the safety tongs of elevator by wheel hub (3-5), in the time that rope sheave hub brake receives effective control signal by control signal input terminal, electromagnet (3-1) works and pulls down pull bar (3-2), at the drive bottom roller (3-3) of pull bar (3-2), roller (3-4) thus roll and hold wheel hub (3-5) tightly it can not be rotated downwards, steel rope tension elevator safety gear makes elevator brake.
3. elevator governor according to claim 2, it is characterized in that, the signal output terminal that rotates monitoring device (B) is connected with the first data input/output port (In0) of master controller (PLC), the signal output terminal of safety return circuit state monitoring apparatus (A) is connected with the second data input/output port (In1) of master controller (PLC), the 3rd data input/output port (Out0) of master controller (PLC) connects the control signal input terminal of wire holder in elevator device, the 4th data input/output port (Out1) of master controller (PLC) connects the control signal input terminal of towing machine, the 5th data input/output port (Out2) of master controller (PLC) connects the control signal input terminal of rope sheave hub brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676368.0U CN203728358U (en) | 2013-10-30 | 2013-10-30 | Speed limiter of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320676368.0U CN203728358U (en) | 2013-10-30 | 2013-10-30 | Speed limiter of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728358U true CN203728358U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320676368.0U Expired - Fee Related CN203728358U (en) | 2013-10-30 | 2013-10-30 | Speed limiter of elevator |
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| Country | Link |
|---|---|
| CN (1) | CN203728358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588060A (en) * | 2013-10-30 | 2014-02-19 | 河北东方富达机械有限公司 | Elevator speed governor |
-
2013
- 2013-10-30 CN CN201320676368.0U patent/CN203728358U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588060A (en) * | 2013-10-30 | 2014-02-19 | 河北东方富达机械有限公司 | Elevator speed governor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20171030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |