CN103253588A - Additional brake power failure time-delay operation device - Google Patents
Additional brake power failure time-delay operation device Download PDFInfo
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- CN103253588A CN103253588A CN2013101707034A CN201310170703A CN103253588A CN 103253588 A CN103253588 A CN 103253588A CN 2013101707034 A CN2013101707034 A CN 2013101707034A CN 201310170703 A CN201310170703 A CN 201310170703A CN 103253588 A CN103253588 A CN 103253588A
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- additional brake
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- relay
- power supply
- return circuit
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Abstract
The invention discloses an additional brake power failure time-delay operation device which comprises a power source connected with a circuit, a work brake (9), an additional brake (8), a first safety return circuit switch (6), a second safety return circuit switch (7), a main controller (10), a first power source detecting relay (1) and a capacitance stored energy return circuit (11), wherein the first power source detecting relay (1) is used for detecting the power source. When the power source works normally, the capacitance stored energy return circuit (11) and the additional brake (8) are disconnected. When the power source is cut off, the capacitance stored energy return circuit (11) provides short-time energy for the additional brake (8) to achieve time-delay operation of the additional brake. The additional brake power failure time-delay operation device enables the additional brake to operate in a time delay mode relative to the work brake under the circumstance that an escalator and an automatic pavement do not require the additional brake to operate when power is cut off suddenly, requirements for the braking and stopping distance can be met, serious impact is not generated, the additional brake operates instantly, and safety is ensured. The time-delay operation device has the advantages of being high in charging speed and low in cost.
Description
Technical field
The present invention relates to a kind of additional brake control setup for escalator and Travelator system.
Background technology
Up-to-date " manufacturing of escalator and moving sidewalk and installation safety standard " when GB16899-2011 5.4.2.2.2 have stipulated the additional brake action, needn't guarantee the desired stop distance of service brake (seeing 5.4.2.1.3).Therefore producer is when the design additional brake, is stop escalator or moving sidewalk effectively, seldom will consider additional brake to the requirement of escalator or moving sidewalk stop distance.Yet at the 5.4.2.2.5 clause regulation: if power supply et out of order or safety return circuit dead electricity allow additional brake and service brake to move simultaneously, this moment, the stop condition should meet the regulation of escalator or moving sidewalk stop distance.Otherwise additional brake and service brake only allow synchronization action under the situation of 1.4 times of hypervelocities or reverse.
For security consideration, the additional brake of most of producers design is the dead electricity braking, and drg action when namely cutting off the power supply on the other hand, has stipulated also in the standard that additional brake must move immediately under the situation of 1.4 times of hypervelocities or reverse, deliberate time-delay can not be arranged.Therefore actual situation is additional brake is not considered the stop distance when design requirement, in the staircase operational process during power supply et out of order (as power cut-off), the additional brake inevitable action, just must satisfy the 5.4.2.2.5 clause in the standard: power supply et out of order or safety return circuit dead electricity, service brake and additional brake move simultaneously, and this moment, the stop condition should meet the regulation of stop distance.
For solving above-mentioned contradiction, when designing, do not satisfy additional brake the requirement of stop distance, then it only allows action immediately under the situation of 1.4 times of hypervelocities or reverse, and does not all allow service brake and additional brake to move simultaneously under other situations such as power cut-off.
Under the situation of dead electricity, service brake moves immediately so, makes the additional brake action by the technological means time-delay, makes the stop distance of escalator or moving sidewalk satisfy regulation.A kind of method commonly used is to power to additional brake by the UPS uninterrupted power supply (UPS), UPS powers still for additional brake in short-term after the staircase outage, reach service brake action stop escalator or moving sidewalk earlier, and the purpose of additional brake deferred action.Yet the cost of this method one side UPS is higher, on the other hand, the UPS charging needs one long period, if long-term stoppage in transit of escalator or moving sidewalk causes the UPS battery electric weight to give out light, putting into operation for the first time namely runs into power failure soon, and the purpose of additional brake deferred action just can not reach.
Summary of the invention
Technical matters to be solved by this invention is to overcome the deficiencies in the prior art, a kind of device that makes additional brake deferred action after having a power failure cheaply is provided, simultaneously this device should satisfy that 1.4 times of hypervelocities take place for escalator and moving sidewalk when normal operation or situation about reversing under the requirement of moving immediately.
The present invention solves the problems of the technologies described above by the following technical solutions:
A kind of additional brake power failure deferred action device, comprise the power supply, service brake, additional brake, the first safety return circuit switch, the second safety return circuit switch, the master controller that are connected in the circuit, the described first safety return circuit switch is used for cutting off additional brake and service brake, and the described second safety return circuit switch is used for cutting off service brake; The action of described main controller controls service brake and additional brake, comprise that also first power supply for detection of power supply detects relay and electric capacity accumulation of energy loop, disconnect in the power supply loop of electric capacity accumulation of energy just often and additional brake, electric capacity accumulation of energy loop provides short-time energy to additional brake when power cut-off, realizes the deferred action of additional brake.
As a kind of optimal technical scheme of the present invention: comprise that also second source detects relay, the open contact series connection back that described first and second power supplys detect relay is connected with the first safety return circuit switch, and the normally closed contact that first and second power supplys detect relay is connected into additional brake behind the series capacity accumulation of energy loop respectively.
As a kind of optimal technical scheme of the present invention: described electric capacity accumulation of energy loop comprises diode, charging current limiter resistance and the charging capacitor that connects successively.
As a kind of optimal technical scheme of the present invention: the accumulation of energy loop was to the first and second relay feeds when described diode was used for preventing power cut-off.
As a kind of optimal technical scheme of the present invention: the capacitance of described charging capacitor can be kept the additional brake continuous firing 0.5 to 3 second.
As a kind of optimal technical scheme of the present invention: dead electricity drop away time that described first and second power supplys detect relay is respectively less than dead electricity drop away time of additional brake.
As a kind of optimal technical scheme of the present invention: also comprise the feedback contact for additional brake, make electric capacity accumulation of energy loop determine whether needs access delay accumulation of energy function according to the operating state of additional brake before outage.
As a kind of optimal technical scheme of the present invention: also comprise the time-delay break contact that detects relay for first power supply, described time-delay break contact is only connected in the short time of power cut-off with first power supply detection relay.
As a kind of optimal technical scheme of the present invention: an end of described feedback contact is connected with the normally closed contact that first power supply detects relay, and the other end of feedback contact is connected with an end of additional brake.
As a kind of optimal technical scheme of the present invention: an end of described time-delay break contact is connected with the normally closed contact that first power supply detects relay, and the other end of the break contact of delaying time is connected with an end of additional brake.
The present invention can not require under the situation that additional brake moves escalator and moving sidewalk having a power failure suddenly to wait, make additional brake with respect to service brake deferred action, satisfy the requirement of stop distance, promptly stop can not producing too large impact to escalator or moving sidewalk; Under the condition of escalator or moving sidewalk normal operation, in case the situation that there are 1.4 times of hypervelocities in the discovery system or reverse can make additional brake move immediately, thereby not reduce the performance of additional brake, guarantee safety simultaneously.Device of the present invention is compared with other technology, have charging rate characteristics fast, with low cost, only increase by two power supplys and detect relay and electric capacity accumulation of energy loop, can realize the outage time-delay break function of additional brake, the performance when not influencing the additional brake normal operation again simultaneously.
Description of drawings
Fig. 1 is the constructional drawing of a kind of additional brake power failure deferred action device of the present invention.
Fig. 2 is the constructional drawing of increase additional brake feedback contact of the present invention.
Fig. 3 is the constructional drawing that the time-delay break contact of series connection first relay of the present invention enters electric capacity accumulation of energy loop.
Wherein label is explained: 1-first power supply detects relay, the normally closed contact that 1A-first power supply detects, the open contact that 1B-first power supply detects, the 1C-break contact of delay time, 2-second source detection relay, the 2A-second source detects the normally closed contact of relay, the 2B-second source detects the open contact of relay, 3-diode, 4-charging current limiter resistance, the 5-charging capacitor, the 6-first safety return circuit switch, the 7-second safety return circuit switch, 8-additional brake, the 9-service brake, the 10-master controller, 10A-first control relay, 10B-second control relay, 11-electric capacity accumulation of energy loop, the 12-feedback contact.
The specific embodiment
The present invention has designed a kind of additional brake power failure deferred action device, comprise the power supply, service brake 9, additional brake 8, the first safety return circuit switch 6, the second safety return circuit switch 7, the master controller 10 that are connected in the circuit, wherein master controller 10 comprises the first control relay 10A and the second control relay 10B; The described first safety return circuit switch 6 is used for cutting off additional brake 8 and service brake 9, the second safety return circuit switch 7 is used for cutting off service brake 9, the action of master controller 10 control service brakes 9 and additional brake 8, comprise that also first power supply for detection of power supply detects relay and electric capacity accumulation of energy loop 11,11 disconnect with additional brake in power supply electric capacity accumulation of energy just often loop, electric capacity accumulation of energy loop 11 provides short-time energy to additional brake when power cut-off, realizes the deferred action of additional brake.
As shown in Figure 1, a kind of specific embodiment of deferred action device of the present invention, comprise the power supply, service brake 9, additional brake 8, the first safety return circuit switch 6, the second safety return circuit switch 7, the master controller 10 that are connected in the circuit, wherein master controller 10 comprises the first control relay 10A and the second control relay 10B; One end of power supply is connected with the first safety return circuit switch 6; The described first safety return circuit switch 6 is connected with the second safety return circuit switch 7, additional brake 8 respectively; The described first control relay 10A is connected with additional brake 8, and the described second control relay 10B is connected with service brake 9; The described first control relay 10A is connected with the other end of power supply respectively with the second control relay 10B, also comprises for detection of first power supply detection relay 1 of power supply with for the electric capacity accumulation of energy loop 11 that short-time energy is provided; Described first power supply detects relay 1 and is connected with the first safety return circuit switch 6 with the open contact 1B that 11 series connection backs, electric capacity accumulation of energy loop, first power supply detects relay 1, and the normally closed contact 1A that first power supply detects relay 1 is connected with additional brake 8.
When being connected into second source detection relay 2, open contact 1B, the 2B series connection that first and second power supplys detect relay is connected into additional brake 8 after entering normally closed contact 1A that the first safety return circuit switch, 6, the first and second power supplys detect relay, 2A series capacity accumulation of energy loop 11.The open contact 1B of i.e. first power supply detection relay 1 detects the open contact 2B of relay 2 with second source, an end of the first safety return circuit switch 6 is connected successively; When supply disconnecton and first power supply detected relay 1, second source and detect relay 2 and all disconnect, described electric capacity accumulation of energy loop 11 was connected the deferred action that realizes additional brake by normally closed contact 1A, the open contact 1B that first power supply detects relay 1 with additional brake 8.
Open contact 1B, the 2B series connection that makes first power supply that is used for the power supply detection detect relay 1, second source detection relay 2 enters the left side that the first safety return circuit switch 6 inserts additional brake 8; On the normally closed contact 2A that the normally closed contact 1A that first power supply detects relay 1 and the left side of also inserting additional brake 8 after the first safety return circuit switch 6 is in parallel, second source detect relay 2 and the staircase master controller 10 the first control relay 10A of additional brake 8 in parallel after the other end of access additional brake 8.One end of the second safety return circuit switch 7 links to each other with the first safety return circuit switch 6, and the other end links to each other with the left side of service brake 9, and the second control relay 10B of service brake links to each other with the right side of service brake 9 on the staircase master controller 10.
The first above-mentioned safety return circuit switch 6 is in series by the safety switch that a series of need on escalator and the moving sidewalk directly cut off additional brake, as driving chain chain rupture switch, 1.4 times of safety switchs of hypervelocity, reversal protection switch etc.; The second safety return circuit switch 7 is in series by a series of safety switchs that only need cut off service brake on escalator and the moving sidewalk, as apron plate safety switch, the sagging protection switch of step, emergency stop switch etc.
As seen from Figure 1, the present invention is provided with two power supplys and detects relay, and with its open contact 1B, 2B and normally closed contact 1A, 2A connect respectively and enter in escalator safety return circuit switch 6,7 and the electric capacity accumulation of energy loop 11, produces the function of redundancy protecting.
Electric capacity accumulation of energy loop 11 comprises diode 3, charging current limiter resistance 4 and charging capacitor 5.Diode 3 in the electric capacity accumulation of energy loop 11 can prevent first relay 1 that the energy of charging capacitor 5 detects to power supply when outage, second relay, 2 feeds, the voltage of charging capacitor 5 is very low when power supply just drops into, internal resistance is very little, can limit to the maximum current of charging capacitor 5 chargings by current-limiting resistance 4.
Concrete working process of the present invention is as follows: when escalator and moving sidewalk normal operation, electric capacity accumulation of energy loop 11 disconnects with additional brake 8, if at this moment all safety switchs are all normal, first safety return circuit 6, the 7 equal conductings of second safety return circuit, the left side of additional brake 8 and service brake 9 gets, the mode of operation of drg can be controlled respectively by the first control relay 10A, the second control relay 10B of staircase master controller 10, and electric capacity accumulation of energy loop 11 does not influence any function of staircase safety return circuit and staircase main controller circuit at this moment.When escalator and moving sidewalk power supply cut off suddenly, first power supply that power supply detects detects relay 1, second source detects relay 2 and all disconnects, first power supply that electric capacity accumulation of energy loop 11 is detected by power supply detects the normally closed contact 1A of relay 1, the normally closed contact 2A that second source detects relay 2 and directly links to each other with additional brake 8, for it provides short-time energy, realize the deferred action of additional brake, guarantee the stop distance when power supply cuts off the power supply suddenly.
Power supply detects the open contact 1B that first power supply detects relay, the open contact 2B series connection that second source detects relay enters in the safety return circuit, make the additional brake safety return circuit comprise the first safety return circuit switch 6, first power supply detects the open contact 1B of relay, second source detects the open contact 2B of relay 2, the service brake safety return circuit comprises the first safety return circuit switch 6, the second safety return circuit switch 7, first power supply detects the open contact 1B of relay 1, the open contact 2B that second source detects relay can control additional brake 8 and service brake 9 respectively.When power supply detects the relay fault (not adhesive), the first control relay 10A of additional brake may be detected normally closed contact 1A, the 2A short circuit that first, second power supply detects relay by power supply on the master controller 10, be series at open contact 1B in the safety return circuit by this, 2B, cut off the power supply of additional brake 8 and service brake 9, guarantee the safety of escalator and moving sidewalk.
From above-mentioned principle of work as can be known, the power supply of additional brake 8 is, just often power by the first safety return circuit switch 6 at power supply, when power cut-off, detect the normally closed contact 1A that two power supplys detect relay by power supply, 2A is provided by charging capacitor 5 and keeps electric energy in short-term, the outage handoff procedure that one additional brake 8 is arranged in the centre, the time of this process is that two power supplys that power supply detects detect relay 1,2 dead electricity drop away time, guarantee this time less than the dead electricity drop away time of additional brake 8, then additional brake can not be cut off in the process of switching.
Cut off the power supply the stage of accumulation of energy in short-term, electric capacity accumulation of energy loop 11 and additional brake 8 constitute the RC discharge loop together, according to the additional brake coil resistance, select suitable charging capacitor C and charging current limiter resistance R, the time range that makes additional brake deferred action is between 0.5 ~ 3 second.
As shown in Figure 2, it is the constructional drawing of electric capacity accumulation of energy loop 11 band additional brake feedback contacts 12, the feedback contact 12 of series connection additional brake in electric capacity accumulation of energy loop, additional brake 8 is in release position before power cut-off, its feedback contact 12 closures, during outage, electric capacity accumulation of energy loop 11 is connected with additional brake 8, and the additional brake time-delay is disconnected; Additional brake 8 is in operating state before power cut-off, and its feedback contact 12 disconnects, and during outage, electric capacity accumulation of energy loop 11 disconnects with additional brake 8, and additional brake is in operating state all the time.Therefore electric capacity accumulation of energy loop 11 can determine whether needs access delay accumulation of energy function according to the operating state of additional brake 8 before outage.
But, first power supply that detects when power supply detects relay 1 not adhesive (first power supply detects relay 1 fault or its wire loop short-term), in the staircase normal work period, first power supply detects the relay 1 normally closed contact 1A possibility short circuit first safety return circuit switch 6, and this situation is unsafe.A kind of improved method is, be used for the time-delay break contact 1C that first power supply detects relay 1 one of place, normally closed contact 1A loop series connection, as shown in Figure 3, make this loop in parallel with the first safety return circuit switch 6 only in several seconds times of power cut-off, connect, to prevent the generation of unsafe condition.
More than have been described in detail by the present invention of embodiment, but these are not to be construed as limiting the invention.Those skilled in the art also can make some distortion and improvement under the situation that does not break away from the principle of the invention, and these also should be considered as belonging to protection scope of the present invention.
Claims (10)
1. additional brake power failure deferred action device, comprise the power supply, service brake (9), additional brake (8), the first safety return circuit switch (6), the second safety return circuit switch (7), the master controller (10) that are connected in the circuit, the described first safety return circuit switch (6) is used for cutting off additional brake (8) and service brake (9), and the described second safety return circuit switch (7) is used for cutting off service brake (9); The action of described master controller (10) control service brake (9) and additional brake (8), it is characterized in that: comprise that also first power supply for detection of power supply detects relay (1) and electric capacity accumulation of energy loop (11), disconnect with additional brake (8) in power supply electric capacity accumulation of energy just often loop (11), electric capacity accumulation of energy loop (11) provides short-time energy for additional brake (8) when power cut-off, realizes the deferred action of additional brake.
2. a kind of additional brake power failure deferred action device according to claim 1, it is characterized in that: comprise that also second source detects relay (2), described first and second power supplys detect the open contact (1B of relay, 2B) the series connection back is connected with the first safety return circuit switch (6), (1A 2A) is connected into additional brake (8) after series capacity accumulation of energy loop (11) respectively to the normally closed contact of first and second power supplys detection relay.
3. a kind of additional brake power failure deferred action device according to claim 1 and 2 is characterized in that: described electric capacity accumulation of energy loop (11) comprises diode (3), charging current limiter resistance (4) and the charging capacitor (5) that connects successively.
4. a kind of additional brake power failure deferred action device according to claim 3 is characterized in that: the accumulation of energy loop was to the first and second relay feeds when described diode (3) was used for preventing power cut-off.
5. a kind of additional brake power failure deferred action device according to claim 3, it is characterized in that: the capacitance of described charging capacitor (5) can be kept additional brake (8) continuous firing 0.5 to 3 second.
6. a kind of additional brake power failure deferred action device according to claim 2 is characterized in that: dead electricity drop away time that described first and second power supplys detect relay is respectively less than dead electricity drop away time of additional brake (8).
7. a kind of additional brake power failure deferred action device according to claim 1 and 2, it is characterized in that: also comprise the feedback contact (12) for additional brake, make electric capacity accumulation of energy loop (11) need determine whether access delay accumulation of energy function according to the operating state of additional brake (8) before outage.
8. a kind of additional brake power failure deferred action device according to claim 1 and 2, it is characterized in that: also comprise the time-delay break contact (1C) that detects relay for first power supply, described time-delay break contact (1C) detects relay with first power supply and only connects in the short time of power cut-off.
9. a kind of additional brake power failure deferred action device according to claim 7, it is characterized in that: an end of described feedback contact (12) is connected with the normally closed contact (1A) that first power supply detects relay, and the other end of feedback contact (12) is connected with an end of additional brake (8).
10. a kind of additional brake power failure deferred action device according to claim 8, it is characterized in that: an end of described time-delay break contact (1C) is connected with the normally closed contact (1A) that first power supply detects relay, and the other end of time-delay break contact (1C) is connected with an end of additional brake (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170703.4A CN103253588B (en) | 2013-05-10 | 2013-05-10 | Additional brake power failure time-delay operation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310170703.4A CN103253588B (en) | 2013-05-10 | 2013-05-10 | Additional brake power failure time-delay operation device |
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| Publication Number | Publication Date |
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| CN103253588A true CN103253588A (en) | 2013-08-21 |
| CN103253588B CN103253588B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310170703.4A Active CN103253588B (en) | 2013-05-10 | 2013-05-10 | Additional brake power failure time-delay operation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692226A (en) * | 2015-01-14 | 2015-06-10 | 浙江西子重工机械有限公司 | Delayed parking system and method for automatic escalator or moving walk |
| CN104828687A (en) * | 2014-02-10 | 2015-08-12 | 东芝电梯株式会社 | Passenger conveyor |
| CN109279485A (en) * | 2018-10-24 | 2019-01-29 | 苏州威倍科动力科技有限公司 | Control method for the braking of the power loss of escalator and moving sidewalk |
| WO2022000988A1 (en) * | 2020-06-30 | 2022-01-06 | 迅达（中国）电梯有限公司 | Elevator brake control system |
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| JP2005041657A (en) * | 2003-07-23 | 2005-02-17 | Mitsubishi Electric Corp | Control device for man conveyor |
| CN101100263A (en) * | 2006-07-07 | 2008-01-09 | 东芝电梯株式会社 | Assistant brake control device and method for passenger conveyer |
| CN202766071U (en) * | 2012-09-18 | 2013-03-06 | 苏州默纳克控制技术有限公司 | Escalator and moving walk security system |
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2013
- 2013-05-10 CN CN201310170703.4A patent/CN103253588B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005041657A (en) * | 2003-07-23 | 2005-02-17 | Mitsubishi Electric Corp | Control device for man conveyor |
| CN101100263A (en) * | 2006-07-07 | 2008-01-09 | 东芝电梯株式会社 | Assistant brake control device and method for passenger conveyer |
| CN202766071U (en) * | 2012-09-18 | 2013-03-06 | 苏州默纳克控制技术有限公司 | Escalator and moving walk security system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104828687A (en) * | 2014-02-10 | 2015-08-12 | 东芝电梯株式会社 | Passenger conveyor |
| CN104692226A (en) * | 2015-01-14 | 2015-06-10 | 浙江西子重工机械有限公司 | Delayed parking system and method for automatic escalator or moving walk |
| CN104692226B (en) * | 2015-01-14 | 2016-09-07 | 浙江西子重工机械有限公司 | A kind of delayed shutdown system and method for escalator or moving sidewalk |
| CN109279485A (en) * | 2018-10-24 | 2019-01-29 | 苏州威倍科动力科技有限公司 | Control method for the braking of the power loss of escalator and moving sidewalk |
| WO2022000988A1 (en) * | 2020-06-30 | 2022-01-06 | 迅达（中国）电梯有限公司 | Elevator brake control system |
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| Publication number | Publication date |
|---|---|
| CN103253588B (en) | 2015-03-25 |
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Effective date of registration: 20190829 Address after: 610400 Chengdu, Jintang, Chengdu ABA Industrial Development Zone, Sichuan Patentee after: Chengdu Kangli Elevator Co., Ltd. Address before: 215213 Linhu Economic Development Zone, Luxu Town, Wujiang City, Suzhou City, Jiangsu Province, No. 88 Patentee before: Canny Elevator Co., Ltd. |