CN209618639U - A kind of driving device based on escalator fault detection - Google Patents
A kind of driving device based on escalator fault detection Download PDFInfo
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- CN209618639U CN209618639U CN201920112397.1U CN201920112397U CN209618639U CN 209618639 U CN209618639 U CN 209618639U CN 201920112397 U CN201920112397 U CN 201920112397U CN 209618639 U CN209618639 U CN 209618639U
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Abstract
The utility model discloses a kind of driving devices based on escalator fault detection, escalator includes control cabinet and motor, and driving device includes input terminal three-phase connection box, output end three-phase connection box, driving frequency converter, control terminal terminal box and at least three contactors；Wherein, input terminal three-phase connection box is connect with the three-phase output end of control cabinet；Output end three-phase connection box is connect with the three-phase input end of motor；Input terminal three-phase connection box also passes through contactor KM5 and connect with output end three-phase connection box；Frequency converter is driven, is connect respectively with input terminal three-phase connection box with output end three-phase connection box, wherein driving frequency converter is connect with phase sequence positive and negative each other with output end three-phase connection box by contactor KM6 and contactor KM7；Control terminal terminal box is connect with the operator of driving frequency converter, contactor KM5, contactor KM6, contactor KM7 and escalator detection device respectively, and the controllable driving frequency converter of operator works and control each contactor closing or opening.
Description
Technical field
The utility model relates to a kind of driving devices based on escalator fault detection, belong to elevator faults detection technique
Field.
Background technique
A kind of escalator comprehensive detection system of the prior art is as shown in Figure 1, escalator includes control cabinet and motor；
Detection system includes: driver, is series between control cabinet and motor, for driving escalator simulation that hypervelocity occurs or reversing
Failure；Sensor is installed on escalator step or handrail, the quantitative detection for a variety of speed signals；And with drive
Dynamic device, sensor connection operator, can for different detection project control driver and to detected speed signal into
Row acquisition and display.
The internal drive of existing escalator comprehensive detection system individually uses the above-mentioned driving function of frequency converter, still
In actual use, for power frequency escalator, full frequency conversion escalator and can the manual switching method of operation bypass frequency conversion
The detection of escalator is only able to achieve the functional requirement of above-mentioned driver really with frequency converter；But for automatically switching after starting
The detection of the bypass frequency conversion device escalator of the method for operation (cannot be by manual switching Starting mode), only cannot achieve with frequency converter
The functional requirement of above-mentioned driver.The bypass frequency conversion escalator working principle of automatic switchover is as shown in Fig. 2, escalator is normal
When starting, three phase mains is by main switch, frequency converter and converting operation contactor KM1 (at this point, contactor KM2, KM3, KM4 are equal
Disconnect) motor is connected, escalator brings into operation；When escalator starting finishes until speed reaches normal speed, frequency conversion fortune
Row contactor KM1 is disconnected, then power frequency operation contactor KM2 and traffic direction contactor be attracted (upcoming contact device KM3 or
Downlink contactor KM4 is attracted, but not is attracted simultaneously), at this point, frequency converter is bypassed, escalator operation is in power frequency mode.It should
Class bypass frequency conversion escalator advantage is: frequency conversion when starting, and starting is steady, impact is small；Work is automatically switched to after starting
Frequency is run, and frequency converter is only used for starting, low to frequency converter requirement, can be reduced cost, be improved escalator reliability.But practical inspection
In survey, if only realizing driver functions by frequency converter using existing detection system, it may appear that failure, because bypass frequency conversion is certainly
After dynamic staircase variable frequency starting, when switching to power frequency operation, power loop will appear moment power loss, and (after KM1 is disconnected, KM2 is
It is attracted, causes circuit moment power loss), driver (frequency converter) can detect major loop power loss and report failure (this be frequency converter
Basic function), driver stops output, escalator cannot be driven to carry out hypervelocity and non-operating reversed state, therefore help automatically
Ladder detection work is unable to complete.Therefore, it is necessary to completed for such a driving device of bypass frequency conversion escalator design with
Upper detection work.
Staircase hypervelocity refers to that the speed of escalator or moving sidewalk is more than normal running speed.
It is non-operating reversed refer to escalator or moving sidewalk under non-artificial mode of operation, step, pedal or glue
Band changes defined traffic direction.
Utility model content
The utility model provides a kind of driving device based on escalator fault detection, comprehensive in existing escalator
Driving escalator hypervelocity is played in detection system or is reversed to simulate staircase fault condition, and prevents power loop moment from losing
Driving device caused by electricity report by mistake failure the case where occur, make for can not manual switching bypass frequency conversion escalator detection
More safety and precise.
The technical solution of the utility model is a kind of driving device based on escalator fault detection, the bypass frequency conversion
Escalator includes control cabinet and motor, and the driving device includes input terminal three-phase connection box, output end three-phase connection box, drives
Dynamic frequency converter, control terminal terminal box and contactor；Wherein, the contactor includes at least three, respectively contactor KM5,
Contactor KM6 and contactor KM7,
Input terminal three-phase connection box is connect with the three-phase output end of control cabinet；
Output end three-phase connection box is connect with the three-phase input end of motor；
The input terminal three-phase connection box also passes through contactor KM5 and connect with output end three-phase connection box；
Frequency converter is driven, is connect respectively with input terminal three-phase connection box with output end three-phase connection box, it is automatic for driving
Staircase hypervelocity is reversed to simulate staircase fault condition, wherein driving frequency converter is by contactor KM6 and contactor KM7 with each other
Positive and negative phase sequence connect to be closed contactor by selection to realize motor forward or reverse with output end three-phase connection box；
Control terminal terminal box, respectively with driving frequency converter, contactor KM5, contactor KM6, contactor KM7 and automatically help
The operator of terraced detection device connects, and the controllable driving frequency converter of the operator works and control each contactor closure or disconnected
It opens.
Further, which further includes power loss verification relay K1, the power loss verification relay K1
Two input terminals connect with any two output terminal in three output terminals of input terminal three-phase connection box, the electricity
The output end of source power loss verification relay K1 is connect with control terminal terminal box, and the operator can be monitored by the power loss
The power loss situation of relay K1 monitoring automatic staircase control cabinet.
Further, which further includes three-phase power supply phase sequence verification relay K2, the three-phase power supply phase sequence monitoring
Three input terminals of relay K2 are connect with three output terminals of input terminal three-phase connection box, the three-phase power supply phase sequence prison
The output end of control relay K2 is connect with control terminal terminal box, and the operator can monitor relay by the three-phase power supply phase sequence
The phase sequence of the three phase mains of device K2 monitoring input terminal three-phase connection box output is to judge that current escalator state is in upper
Capable or downlink.
Preferably, each contactor is A.C. contactor.
Further, contactor KM6 and contactor KM7 is a pair of interlocking directional contactor, for changing motor is output to
Three-phase power supply phase sequence.
The utility model has the following beneficial effects:
The driving device based on escalator fault detection of technical solutions of the utility model, can by driving frequency converter
It drives escalator to realize hypervelocity or non-operating reversed equal simulation staircase fault condition, and passes through the circuit branch of contactor KM5
Situations such as driver caused by road can be prevented because of power loop moment power loss is reported by mistake, is stopped working, so that for can not
The fault detection more safety and precise of the bypass frequency conversion escalator of manual switching operating mode.
Detailed description of the invention
Fig. 1 show a kind of escalator comprehensive detection system framework schematic diagram of the prior art；
Fig. 2 show the circuit diagram of the bypass frequency conversion escalator of automatic switchover according to the present utility model；
Fig. 3 show the drive circuit schematic diagram of the escalator comprehensive detection system of the prior art；
Fig. 4 show former according to the driving device circuit based on escalator fault detection of the utility model embodiment
Reason figure；
When Fig. 5 show the driving device use based on escalator fault detection according to the utility model embodiment
Circuit connecting relation figure；
Fig. 6 show the circuit connecting relation figure of the control terminal terminal box according to the utility model embodiment.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.
It should be noted that unless otherwise specified, when a certain feature referred to as " fixation ", " connection " are in another feature,
It can directly fix, be connected to another feature, and can also fix, be connected to another feature indirectly.In this public affairs
The "an" of singular used in opening, " described " and "the" are also intended to including most forms, unless context is clearly
Indicate other meanings.In addition, unless otherwise defined, all technical and scientific terms used herein and the art
The normally understood meaning of technical staff is identical.Term used in the description is intended merely to description specific embodiment herein,
Rather than in order to limit the utility model.Term as used herein "and/or" includes one or more relevant listed items
Arbitrary combination.The use of provided in this article any and all example or exemplary language (" such as ", " such as ") is only
The embodiments of the present invention are better described in intention, and unless the context requires otherwise, otherwise will not be to the scope of the utility model
Apply limitation.
With reference to Fig. 1-Fig. 3, using the prior art escalator comprehensive detection system to the bypass frequency conversion of automatic switchover from
Dynamic staircase is detected, and escalator includes control cabinet and motor；Detection system includes: driver, is series at control cabinet and electricity
Between machine, for driving escalator simulation that hypervelocity occurs or reversing failure；Sensor is installed on escalator step or helps
Quantitative detection in hand strap, for a variety of speed signals；And the operator being connect with driver, sensor, it can be for difference
Detection project control driver and be acquired and show to speed signal has been detected；Existing internal drive as shown in figure 3,
Individually using frequency converter realize driving, when using existing driver for can not manual switching bypass frequency conversion escalator into
When row detection, because start staircase normally, contactor KM3 ' and contactor KM4 ' just need to be closed one of them at the beginning
(contactor KM3 ' and contactor KM4 ' interlocking, can not be closed at) just can make motor obtain electricity operation, therefore, since starting,
The frequency converter of internal drive is at working condition, and when moment power loss occurs in control cabinet, the frequency converter of internal drive also can
Cause to stop working because of power loss, to can not continue to detect.The occurrence of such in order to prevent, the utility model needle
Corresponding improvement is carried out to existing driver, and alternative existing driver is used for the detection work of escalator comprehensive detection system
Make.
With reference to Fig. 4-Fig. 6, a kind of driving device based on escalator fault detection, being used for can not manual switching Working mould
The hypervelocity or non-operating reversed fault detection of the bypass frequency conversion escalator of formula, the bypass frequency conversion escalator includes control cabinet
And motor, the driving device include input terminal three-phase connection box, output end three-phase connection box, driving frequency converter, control termination
Wire box, power loss verification relay K1, three-phase power supply phase sequence verification relay K2 and three A.C. contactors, respectively connect
Tentaculum KM5, contactor KM6 and contactor KM7；Wherein,
Input terminal three-phase connection box is connect for driving device with automatic staircase control cabinet, outside driving device, terminal L1,
L2, L3 are connected with the three-phase output line of automatic staircase control cabinet respectively, and phase sequence can not be distinguished when connecting with control cabinet；Driving device
Inside, terminal L1, L2, L3 are connected respectively to the input terminal 1,2,3 of contactor KM5, while L1, L2, L3 are connected respectively to frequency conversion
Input terminal R, S, T of device, while L1, L2, L3 are connected respectively to three-phase power supply phase sequence relay K2, while any in L1, L2, L3
Two terminals are connected respectively to the input terminal of power loss verification relay K1.
Output end three-phase connection box is connect for driving device with escalator motor, outside driving device, terminal L1 ',
L2 ', L3 ' are connected with the triple line of motor respectively, and phase sequence can not be distinguished when being connected to motor；Inside driving device, terminal L1 ',
L2 ', L3 ' are connected with the output end of contactor KM5 4,5,6 respectively, while terminal L1 ', L2 ', L3 ' are respectively with contactor KM6's
Output end 4,5,6 is connected, while terminal L1 ', L2 ', L3 ' are connected with the output end of KM7 4,5,6 respectively.
For control terminal terminal box for being connected with the operator of detection system, operator obtains driving by control terminal terminal box
The status information of device, and pass through the operation of control terminal terminal box control driving device；Inside driving device, terminated line is controlled
Box is connected with the control port of driving frequency converter respectively, for controlling the work of driving frequency converter；Simultaneously control terminal terminal box with
The output contact of power loss verification relay K1 is connected, for monitor control cabinet be input to driving device three phase mains whether
Power loss；Control terminal terminal box is connected with the output contact of three-phase power supply phase sequence verification relay K2 simultaneously, is input to for monitoring
(if definition positive phase sequence is staircase uplink, negative-phase sequence is staircase downlink to the phase sequence of the three phase mains of driver, or reversed fixed
Justice, so as to be in uplink or downlink by the current escalator state of the positive negative judgement of phase sequence；The uplink and downlink and motor of staircase
Traffic direction or input phase sequence it is related)；Control terminal terminal box is connected with the coil of contactor KM5 simultaneously, for controlling contact
The actuation or disconnection of device KM5；It is connected with the coil of contactor KM6, the actuation or disconnection for control contactor KM6；With contact
The coil of device KM7 is connected, for the actuation or disconnection of control contactor KM7, the connection of control terminal terminal box and each circuit module
Phase sequence can not be distinguished.
It drives frequency converter to be used for the frequency conversion drive of motor, changes revolving speed, the traffic direction of motor, simulation escalator occurs
The fault conditions such as unexpected hypervelocity, non-operating reversed.Drive frequency converter three-phase input end R, S, T respectively with three phase connection of input terminal
L1, L2, L3 of box are connected, and drive three-phase output end U, V, W of frequency converter to be connected with the input terminal 1,2,3 of contactor KM6, simultaneously
The input terminal 3,2,1 (or 2,1,3 or 1,3,2) of three-phase output end U, V, W and contactor KM7 for driving frequency converter are connected, driving
The control terminal of frequency converter is connected by control terminal terminal box with operator.If (define 1,2,3 be positive phase sequence, 2,3,1,3,1,2
It also is positive phase sequence, 3,2,1,2,1,3,1,3,2 be negative-phase sequence.)
Power loss verification relay K1 is used to monitor the three phase mains of input driving device with the presence or absence of power loss situation, electricity
The input terminal of source power loss verification relay K1 respectively with any two terminal in input terminal three-phase connection box (such as L1, L2 or L1,
L3 or L2, L3) it is connected, power loss verification relay K1 output contact is connected by control terminal terminal box with operator.
The three-phase power supply phase sequence that three-phase power supply phase sequence verification relay K2 is used to monitor input driving device (judges currently certainly
Dynamic staircase state is in uplink or downlink), the input terminal of three-phase power supply phase sequence verification relay K2 respectively with input terminal three-phase
L1, L2, L3 of terminal box are connected, and output contact is connected by control terminal terminal box with operator.
Contactor KM6 and contactor KM7 is a pair of interlocking directional contactor, for changing the three-phase electricity for being output to motor
Source phase sequence, three-phase output end U, V, the W of the input terminal 1,2,3 of contactor KM6 respectively with driving frequency converter are connected directly, contactor
The output end 4,5,6 of KM6 is connected with the L1 ' of output end three-phase connection box, L2 ', L3 ' in driving device respectively；Contactor KM7's
Input terminal 1,2,3 respectively with driving frequency converter three-phase output end W, V, U (or V, U, W or U, W, V) be connected directly (if define U,
V, W is positive phase sequence, then V, W, U, W, U, V are also positive phase sequence, and W, V, U, V, U, W, U, W, V are negative-phase sequence), contactor KM7 tri-
Phase output terminal 4,5,6 is connected directly with the L1 ' of output end three-phase connection box, L2 ', L3 ' in driving device respectively.
In detection, in staircase startup stage, the contactor KM5 in driving device is closed, contactor KM6 and contactor KM7
It disconnects, driving device operates in power frequency mode at this time, and driving frequency converter is bypassed, and staircase normally starts operation；When staircase opens
It moves successfully and after even running, disconnects contactor KM5, according to the current traffic direction of staircase, by interlocking contactor KM6 and connect
Tentaculum KM7 (only one closure, can not be closed in contactor KM6 and contactor KM7) and driving frequency converter is mutual
Cooperation, the revolving speed and traffic direction for controlling motor are to simulate hypervelocity or non-operating reversed equal fault conditions；Due in control cabinet
Start power loss moment moment during staircase, driving frequency converter is in non-working condition, driving is just switched to after even running
Frequency converter operational mode, so that escalator simulated failure operating condition can be driven by driving frequency converter still, therefore can be to avoid drive
The case where dynamic frequency converter can not continue to complete fault detection due to power loss can not report an error and stop working generation；To driving in detection
The control of each circuit module of device is that manual and/or automatic operation control is carried out by operator, when driving transducer drive from
After dynamic staircase simulated failure operating condition, the overspeed protective device or reversal protection device of escalator will be will start, and disconnect control cabinet
All contactors, thus input terminal three-phase connection box power loss, power loss verification relay K1 is able to detect that control cabinet is sent out
It has given birth to power loss and has judged that overspeed protective device or reversal protection device start because of escalator failure, shown that error protection fills
It sets normal.
The above, the only preferred embodiment of the utility model, the utility model are not limited to above-mentioned implementation
Mode, as long as its technical effect for reaching the utility model with identical means, it is all the spirit and principles of the utility model it
Any modification, equivalent substitution, improvement and etc. that are interior, being done should be included within the scope of the utility model protection.It is practical at this
Its technical solution and/or embodiment can have a variety of different modifications and variations in novel protection scope.
Claims (5)
1. a kind of driving device based on escalator fault detection, can be used for driving bypass frequency conversion escalator simulation hypervelocity or
Non-operating reversed fault condition, the bypass frequency conversion escalator includes control cabinet and motor, it is characterised in that: the driving
Device includes input terminal three-phase connection box, output end three-phase connection box, driving frequency converter, control terminal terminal box and contactor；
Wherein, the contactor includes at least three, respectively contactor KM5, contactor KM6 and contactor KM7,
Input terminal three-phase connection box is connect with the three-phase output end of control cabinet；
Output end three-phase connection box is connect with the three-phase input end of motor；
The input terminal three-phase connection box also passes through contactor KM5 and connect with output end three-phase connection box；
Frequency converter is driven, is connect respectively with input terminal three-phase connection box with output end three-phase connection box, for driving escalator
Hypervelocity is reversed to simulate staircase fault condition, wherein driving frequency converter is by contactor KM6 and contactor KM7 with positive and negative each other
Phase sequence connect with output end three-phase connection box so as to by selection closure contactor to realize motor forward or reverse；
Control terminal terminal box is examined with driving frequency converter, contactor KM5, contactor KM6, contactor KM7 and escalator respectively
The operator connection of device is surveyed, the controllable driving frequency converter of the operator works and control each contactor closing or opening.
2. the driving device according to claim 1 based on escalator fault detection, it is characterised in that: further include power supply
Two input terminals of power loss verification relay K1, the power loss verification relay K1 and the three of input terminal three-phase connection box
Any two output terminal connection in a output terminal, the output end of the power loss verification relay K1 and control terminate
Wire box connection, the operator can monitor the power loss of automatic staircase control cabinet by the power loss verification relay K1
Situation.
3. the driving device according to claim 1 based on escalator fault detection, it is characterised in that: further include three-phase
Power phase verification relay K2, three input terminals of the three-phase power supply phase sequence verification relay K2 connect with input terminal three
Three output terminals of wire box connect, and the output end and control terminal terminal box of the three-phase power supply phase sequence verification relay K2 connects
It connects, the operator can monitor the three-phase of input terminal three-phase connection box output by the three-phase power supply phase sequence verification relay K2
The phase sequence of power supply is to judge that current escalator state is in upstream or downstream.
4. the driving device according to claim 1 based on escalator fault detection, it is characterised in that: each contactor is
A.C. contactor.
5. the driving device according to claim 1 based on escalator fault detection, it is characterised in that: contactor KM6
It is a pair of interlocking directional contactor with contactor KM7, for changing the three-phase power supply phase sequence for being output to motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920112397.1U CN209618639U (en) | 2019-01-23 | 2019-01-23 | A kind of driving device based on escalator fault detection |
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| CN201920112397.1U CN209618639U (en) | 2019-01-23 | 2019-01-23 | A kind of driving device based on escalator fault detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650240A (en) * | 2019-01-23 | 2019-04-19 | 广东省特种设备检测研究院珠海检测院 | A kind of driving device based on escalator fault detection |
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2019
- 2019-01-23 CN CN201920112397.1U patent/CN209618639U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109650240A (en) * | 2019-01-23 | 2019-04-19 | 广东省特种设备检测研究院珠海检测院 | A kind of driving device based on escalator fault detection |
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Assignee: ZHUHAI ANYES TECHNOLOGY Co.,Ltd. Assignor: GUANGDONG INSPECTION AND Research Institute OF SPECIAL EQUIPMENT ZHUHAI INSPECTION INSTITUTE Contract record no.: X2021980017429 Denomination of utility model: A driving device based on escalator fault detection Granted publication date: 20191112 License type: Common License Record date: 20220111 |