CN208308222U - A kind of escalator with redundant braking system - Google Patents
A kind of escalator with redundant braking system Download PDFInfo
- Publication number
- CN208308222U CN208308222U CN201820674783.5U CN201820674783U CN208308222U CN 208308222 U CN208308222 U CN 208308222U CN 201820674783 U CN201820674783 U CN 201820674783U CN 208308222 U CN208308222 U CN 208308222U
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- China
- Prior art keywords
- permanent magnet
- magnet synchronous
- synchronous motor
- contactor
- escalator
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Abstract
The utility model discloses a kind of escalators with redundant braking system comprising permanent magnet synchronous motor, driving wheel, terraced road system, handrail system, locking system and control circuit；When escalator starts, the control panel exports enabling signal, and the envelope star contactor and the band-type brake contactor disconnect, and the permanent magnet synchronous motor drives the driving wheel rotation, and the driving wheel drives the terraced road system and handrail system operation；When escalator stops, the control panel exports stop signal, the envelope star contactor and band-type brake contactor engagement, and the three-phase windings of the permanent magnet synchronous motor are shorted and the locking system brakes the permanent magnet synchronous motor.The escalator with redundant braking system of the utility model compared with the prior art, avoids and causes terraced road system and handrail system rollback out of control because of drive chain fracture.
Description
Technical field
The utility model relates to a kind of escalator control technical fields more particularly to a kind of with redundant braking system
Escalator.
Background technique
Escalator be it is a kind of using in shuttling movement ladder road direction or tilt down transport passenger fixation power equipment,
Because it has the characteristics that conveying capacity is big, can plan stream of people's direction of travel and take and experience good, and it is widely used in market, super
The occasion of city, airport and subway et al. traffic-intensive.Since news media repeatedly report peace relevant to escalator in recent years
Full accident, procurement unit and passenger also increasingly pay close attention to the security performance of escalator.
Mainly using threephase asynchronous machine as dragging system, the reduction gearbox of asynchronous machine passes through current escalator product
Drive chain is connect with main drive wheel.When staircase operation, asynchronous machine drags main drive wheel by drive chain and rotates, main drive wheel
Drive the operating of staircase Zhong Ti road system and handrail system；And above-mentioned escalator is mainly by acting on asynchronous machine
Locking system brakes staircase, but product overuses or safeguard that locking system is easy failure when guarantee is not in place, from
Dynamic staircase can not then be braked；In addition, if the case where drive chain is broken, locking system also can not reliable stop, staircase meeting
Reverse movement is easy to appear to cause casualties or damage to property so as to cause the safety accident of staircase.
Utility model content
The purpose of the utility model is to provide a kind of escalator with redundant braking system, which can be effective
It solves the problems, such as of the existing technology.
To achieve the goals above, the technical solution of the utility model is:
A kind of escalator with redundant braking system comprising: permanent magnet synchronous motor, terraced road system, is helped driving wheel
Hand system, locking system and control circuit；The control circuit includes control panel, band-type brake contactor and envelope star contactor；It is described
For band-type brake contactor for controlling the locking system, the three-phase windings of the envelope star contactor and the permanent magnet synchronous motor are short
Connect, the control panel respectively with the permanent magnet synchronous motor, terraced road system, handrail system, band-type brake contactor and envelope star contactor
Connection；When escalator starting, the control panel exports enabling signal, and the envelope star contactor and the band-type brake contactor are disconnected
It opens, the permanent magnet synchronous motor drives the driving wheel rotation, and the driving wheel drives the terraced road system and handrail system fortune
Row；When escalator stops, the control panel exports stop signal, and the envelope star contactor and the band-type brake contactor connect
It closes, the three-phase windings of the permanent magnet synchronous motor are shorted, and the locking system brakes the permanent magnet synchronous motor.
As a kind of specific embodiment, reduction gearbox is connected between the permanent magnet synchronous motor and the driving wheel.
As a kind of specific embodiment, the control circuit further includes frequency converter, and the frequency converter and the permanent magnetism are same
Motor connection is walked, the control panel is connect by PORT COM with the frequency converter.
Further, operation contactor is also connected in series between the frequency converter and the permanent magnet synchronous motor.
Further, safety return circuit detection module is equipped in the control panel.
As a kind of specific embodiment, velocity sensor, the speed are equipped in the ladder road system and handrail system
Sensor is connect with the control panel.
As a kind of specific embodiment, the ladder road system is tilting staircase or pavement formula staircase.
Compared with prior art, the utility model has following technical effect that
The escalator with redundant braking system of the utility model, brakes permanent magnet synchronous electric by locking system
Machine, and envelope star contactor is shorted on the three-phase windings of permanent magnet synchronous motor；When escalator needs to stop, control circuit
In control panel receive stop signal after, issuing signal makes band-type brake contactor and envelope star contactor engagement, and one side band-type brake connects
Tentaculum engagement starts locking system, and permanent magnet synchronous motor can stop operating under the braking of locking system, on the other hand seals
Star contactor engagement is shorted the three-phase windings of permanent magnet synchronous motor, and it is same that terraced road system and handrail system will drive permanent magnetism when moving
The rotor for walking motor cuts permanent magnet, generates electromagnetic force, to make permanent magnet synchronous motor generate braking moment, even if locking system
It remains to prevent terraced road system and handrail system from rollback occurs when unexpected failure；Moreover, compared between previous motor and driving wheel
By driving chain link, the permanent magnet synchronous motor of the utility model directly drives driving wheel rotation, avoids because drive chain is broken
And cause terraced road system and handrail system rollback out of control.
Further, reduction gearbox is provided between permanent magnet synchronous motor and driving wheel, reduction gearbox is for reducing permanent magnet synchronous electric
Machine is transmitted to the revolving speed of driving wheel, increases the torque that permanent magnet synchronous motor is transmitted to driving wheel.
Further, control circuit further includes frequency converter, and frequency converter adjusts out-put supply and is output to permanent magnet synchronous motor
It voltage and drapes over one's shoulders green, plays the overcurrent to permanent magnet synchronous motor, over-voltage and overload protection etc..
Further, operation contactor is also serially connected between frequency converter and permanent magnet synchronous motor, when operation contactor disconnects
Permanent magnet synchronous motor is in off-position, and on the contrary then permanent magnet synchronous motor is in energized state；When escalator is from halted state
When being switched to starting state, after envelope star contactor disconnects a period of time, rejoins operation contactor, avoid frequency converter and permanent magnetism same
Step motor is damaged because of short circuit.
In order to better understand and implement, according to the present invention will be described in detail below with reference to the accompanying drawings.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the escalator with redundant braking system of the utility model；
Fig. 2 is the enlarged drawing in Fig. 1 at A；
Fig. 3 is the structural schematic diagram of the control circuit of the utility model.
Specific embodiment
Please refer to Fig. 1-3, a kind of escalator with redundant braking system comprising: permanent magnet synchronous motor 1 slows down
Case 2, driving wheel 3, terraced road system 4, handrail system 5, locking system 6 and control circuit 7.
Wherein, driving wheel 3 drives terraced road system 4 and handrail system 5 to run, and driving wheel 3 is passed through by permanent magnet synchronous motor 1
Reduction gearbox 2 directly drives；Locking system 6 is connect with permanent magnet synchronous motor 1, can be electromotor brake.
As shown in figure 3, control circuit 7 includes control panel, frequency converter, operation contactor, envelope star contactor and band-type brake contact
Device.
Wherein, frequency converter and band-type brake contactor are connect with external Three-phase five-wire power supply；Frequency converter by operation contactor with
Permanent magnet synchronous motor 1 be connected in series, for changing input permanent magnet synchronous motor voltage and frequency come reach energy conservation, speed regulation etc. mesh
's；Band-type brake contactor and locking system 6 are connected in series, and start or stop for controlling locking system 6；Seal star contactor and permanent magnetism
The three-phase windings of synchronous motor 1 connect, and when sealing star contactor connection, the three-phase windings of permanent magnet synchronous motor 1 are shorted.
Control panel and frequency converter are electrically connected, and frequency converter provides power supply to control panel；Control panel also with operation contactor, envelope
Star contactor and band-type brake contactor are electrically connected, the connection for controlling operation contactor, sealing star contactor and band-type brake contactor
And closure.
Preferably, it is equipped with safety return circuit detection module in control panel, is equipped with safety return circuit, safety return circuit in terraced road system 4
It is connect with safety return circuit detection module, when such as pedal fracture failure occurs for terraced road system, the detection of safety return circuit detection module
It is in off-position to safety return circuit, control panel issues stop signal.
Specifically, it is equipped with velocity sensor in terraced road system and handrail system, velocity sensor is connect with control panel, works as ladder
When road system and handrail system in operating status, velocity sensor exports feedback signal to control panel.
Specifically, terraced road system 4 is tilting staircase or pavement formula staircase.
The working principle of the utility model is as follows:
When escalator is in standby, control panel passes through safety return circuit detection module first and judges that safety return circuit is
It is no effective；And then after control panel receives the run signal of upstream or downstream, first control envelope star contactor is disconnected, envelope star contact
After device disconnects 3 seconds, then operation contactor engagement is controlled, frequency converter is powered to permanent magnet synchronous motor 1, and permanent magnet synchronous motor 1 passes through
Reduction gearbox 2 directly drives driving wheel 3, and driving wheel 3 drives terraced road system 4 and the operating of 5 uplink of handrail system or downlink operating, automatically
Staircase enters starting state.
When escalator is in starting state, after control panel receives stop signal, first controls operation contactor and disconnect, embrace
The engagement of lock contactor, so that permanent magnet synchronous motor 1 is powered off, the electromotor brake starting braking permanent magnet synchronous electric of locking system 6
Machine 1；After operation contactor disconnects, band-type brake contactor engages 3 seconds, control panel control envelope star contactor closure, permanent magnet synchronous motor 1
Three-phase windings be shorted.
It can be seen from the above, being carried out by locking system 6 to permanent magnet synchronous motor 1 when escalator is under halted state
Braking；If locking system 6 fails and terraced road system 4 and rollback in the case where heavy duty of handrail system 5, at this time due to permanent-magnet synchronous
The three-phase windings of motor 1 are shorted, and rotor cutting permanent magnet can generate electromagnetic force, electromagnetic force in turn to permanent magnet synchronous motor 1 into
Row braking.
The utility model is not limited to above embodiment, if the various changes or deformation to the utility model do not take off
Spirit and scope from the utility model, if these changes and deformation belong to the claims and equivalents of the utility model
Within the scope of, then the utility model is also intended to encompass these changes and deformation.
Claims (7)
1. a kind of escalator with redundant braking system characterized by comprising
Permanent magnet synchronous motor, driving wheel, terraced road system, handrail system, locking system and control circuit；
The control circuit includes control panel, band-type brake contactor and envelope star contactor；
The band-type brake contactor is for controlling the locking system, the three-phase of the envelope star contactor and the permanent magnet synchronous motor
Winding is shorted, the control panel respectively with the permanent magnet synchronous motor, terraced road system, handrail system, band-type brake contactor and envelope star
Contactor connection；
When escalator starting, the control panel exports enabling signal, and the envelope star contactor and the band-type brake contactor are disconnected
It opens, the permanent magnet synchronous motor drives the driving wheel rotation, and the driving wheel drives the terraced road system and handrail system fortune
Row；When escalator stops, the control panel exports stop signal, and the envelope star contactor and the band-type brake contactor connect
It closes, the three-phase windings of the permanent magnet synchronous motor are shorted, and the locking system brakes the permanent magnet synchronous motor.
2. escalator according to claim 1, it is characterised in that:
Reduction gearbox is connected between the permanent magnet synchronous motor and the driving wheel.
3. escalator according to claim 1, it is characterised in that:
The control circuit further includes frequency converter, and the frequency converter is connect with the permanent magnet synchronous motor, and the control panel passes through
PORT COM is connect with the frequency converter.
4. escalator according to claim 3, it is characterised in that:
Operation contactor is also connected in series between the frequency converter and the permanent magnet synchronous motor.
5. escalator according to claim 4, it is characterised in that:
Safety return circuit detection module is equipped in the control panel.
6. escalator according to claim 1, it is characterised in that:
It is equipped with velocity sensor in the ladder road system and handrail system, the velocity sensor is connect with the control panel.
7. escalator according to claim 1-6, it is characterised in that:
The ladder road system is tilting staircase or pavement formula staircase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674783.5U CN208308222U (en) | 2018-05-07 | 2018-05-07 | A kind of escalator with redundant braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674783.5U CN208308222U (en) | 2018-05-07 | 2018-05-07 | A kind of escalator with redundant braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208308222U true CN208308222U (en) | 2019-01-01 |
Family
ID=64711240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820674783.5U Active CN208308222U (en) | 2018-05-07 | 2018-05-07 | A kind of escalator with redundant braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208308222U (en) |
-
2018
- 2018-05-07 CN CN201820674783.5U patent/CN208308222U/en active Active
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