WO2016047966A2 - Appareil pour détecter une rupture d'une chaîne d'entraînement de tapis roulant horizontal et système de commande de frein auxiliaire de tapis roulant horizontal - Google Patents

Appareil pour détecter une rupture d'une chaîne d'entraînement de tapis roulant horizontal et système de commande de frein auxiliaire de tapis roulant horizontal Download PDF

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Publication number
WO2016047966A2
WO2016047966A2 PCT/KR2015/009782 KR2015009782W WO2016047966A2 WO 2016047966 A2 WO2016047966 A2 WO 2016047966A2 KR 2015009782 W KR2015009782 W KR 2015009782W WO 2016047966 A2 WO2016047966 A2 WO 2016047966A2
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WIPO (PCT)
Prior art keywords
auxiliary brake
drive chain
walker
actuator
motor load
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PCT/KR2015/009782
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English (en)
Korean (ko)
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WO2016047966A3 (fr
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송종태
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송종태
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Publication of WO2016047966A2 publication Critical patent/WO2016047966A2/fr
Publication of WO2016047966A3 publication Critical patent/WO2016047966A3/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B21/00—Kinds or types of escalators or moving walkways
    • B66B21/10—Moving walkways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B25/00—Control of escalators or moving walkways

Definitions

  • the present invention relates to an auxiliary brake control system of a pedestrian walker. More specifically, since the breaking detection of the drive chain is based on the motor current detection method, the detection time can be minimized to minimize the time from the breakage point of the drive chain to the auxiliary brake operation.
  • the auxiliary brake control system of a pedestrian which can prevent passenger accidents, prevent secondary accidents, and minimize injuries by appropriately changing the braking force and braking distance of the auxiliary brake in response to the motor load.
  • the conventional walker system 1 is composed of a driving control unit 2 and a motor control unit 12 to manage and control overall driving.
  • the driving control unit 2 includes a driving signal input unit 3 that receives various driving signals, a photosensor 11 for checking whether a passenger boards during automatic driving, a timer 4 for controlling a driving time, and a driving control unit. (2) It receives a signal input and decides whether to drive up or down, and stops by input of up / down driving command (5) which gives driving direction command and signals such as safety system abnormality or driving stop signal.
  • Stop command unit 6 for giving a command, operation direction selector switch 7 for selecting the driving direction, emergency stop switch 8 for emergency stop of the walker, and automatic operation of the operation mode by the photosensor 11 It consists of an automatic / manual selection switch 9 which selects an operation mode, whether the manual operation of continuous operation and continuous operation, and a safety-related switch 10 which receives input of a drive chain break and various safety system switches.
  • the motor control unit 12 drives the motor according to the driving command received from the motor driving signal input unit 13 and the motor driving signal input unit which receive the driving direction command and the driving stop command by the rising / lowering driving command unit of the driving control unit 2. It consists of a motor 18 that is a power source for driving the step 120 and the handrail through the motor drive unit 15 and the drive chain 80 for.
  • the reducer 50 connected to the motor 18 increases the torque and decreases the speed, thereby driving the sprocket 70. Rotate).
  • Power of the drive sprocket 70 is transmitted to the terminal gear 90 through the drive chain 80, and the step chain sprocket 100 is connected on the same axis, so that the terminal gear 90 and the step chain sprocket 100 are also Rotate together.
  • the step chain 110 is connected to the step chain sprocket 100, and the step 120 is connected to the step chain 110, the step 120 is also rotated together to move the passengers in the step. give.
  • step driving and stopping is possible only by the drive chain 80 connected between the drive sprocket 70 and the terminal gear 90. Therefore, in order to detect whether the drive chain 80 is broken, the drive chain break detection limit switch 60 is provided on the drive chain 80, and the drive chain break detection limit switch 60 is operated by the usual chain tension. If the drive chain 80 is disconnected, the operating tension of the drive chain disappears, so that the break detection limit switch 60 of the drive chain is turned off to detect the break of the drive chain.
  • the drive chain break detection limit switch 60 if the drive chain breakage is detected by the drive chain break detection limit switch 60, the drive sprocket 70 connected by the drive chain 80 is broken because the drive chain is broken even if the main brake operates. A problem arises in that the terminal gear 90 and the step 120 connected thereto cannot be stopped. In this case, when the drive chain is broken, the horizontal walker does not stop but moves toward the center of gravity, which causes a serious safety accident.
  • the conventional walker installs the auxiliary brake 130 together with the terminal gear 90 and the step chain sprocket 100, and when the drive chain breaks 80, the auxiliary brake 130 is connected to the auxiliary brake 130.
  • the auxiliary brake latch 140 is operated to forcibly stop the step 120.
  • the auxiliary brake is connected to the terminal gear 90 and the step chain sprocket 100, so that the auxiliary brake is usually connected with the terminal gear 90 and the step chain sprocket ( 100 and the auxiliary brake 130 rotates together.
  • the auxiliary brake 130 of the conventional walker is composed of a disc brake 1 (160), a disc brake 2 (170), a disc brake 3 (180) for stopping the step chain sprocket (100) and the step chain sprocket (100). have.
  • a brake lining 200 is attached to stop the step chain sprocket 100, and the brake pressure is constantly adjusted by the spring 210 during the auxiliary brake operation.
  • the drive chain break detection limit switch 60 detects the break and transmits the break detection signal to the operation controller 2 (step 300). Step 301, step 302, step 303, and step 304).
  • the driving controller 2 stops the disc brake 3 180 by operating the solenoid of the auxiliary brake latch 140.
  • the disc brakes 1 and 2 (160, 170) continue to rotate by rotational inertia but suddenly decelerate while suddenly decelerating by the disc brake 3 (180) and lining friction. (Step 305).
  • the deceleration distance due to the operation of the auxiliary brake 130 varies depending on the installation angle of the walker 1, the passenger load on the step, and the driving direction, and in the case of a large number of passengers, the load of the step is applied to the auxiliary brake 130. Sliding toward the lower center of gravity exceeds the braking force range of).
  • step 120 after stopping due to a sudden deceleration during driving in the ascending direction, when the leveling machine 1 installation angle is slow and the passenger load in step 120 is small, the leveling machine stops, but when the passenger load is large A phenomenon in which the step 120 slides downward may occur (steps 306, 307, 308, 309, 310, and 320).
  • the step 120 will be much slippery than the deceleration distance by the basic auxiliary brake 130 ( Steps 330, 331 and 332).
  • the auxiliary brake 130 of the single braking force is operated in the above-described order. Slip distance deviation occurs depending on the installation angle, driving direction, and load of passengers of the walker 1, and there is a risk of secondary safety accident by stopping shock or increasing the slip distance.
  • the conventional auxiliary brake 130 inputs the driving chain breaking signal to the driving control unit 2 by the driving chain breaking detection limit switch 60 and again performs the auxiliary brake solenoid under the control of the driving control unit 2. Since the auxiliary brake 130 is operated in the order in which the disc brake 3 180 is latched, the slip distance is further generated by a time delay from the breakage of the drive chain to the auxiliary brake operation, thereby increasing the risk of a safety accident.
  • Such a conventional system has a risk of a safety accident due to severe deviation of slip distance because the auxiliary brake frictional force coefficient is the same regardless of the passenger load on the level walker 1, the direction of travel, and the step. .
  • such a conventional system has a complexity and a cost increase factor of the structure due to the break detection limit switch 60 and the auxiliary brake latch structure of the drive chain, and operates only when the break detection of the auxiliary brake 130 is the drive chain. Because of this, there is a disadvantage that the operation linkage with other safety devices is poor.
  • An object of the present invention is to reduce the reaction time from the detection of the breakage of the drive chain to the operation of the auxiliary brake during the operation of the pedestrian walk, and to prevent the safety accident by appropriately controlling the braking distance through the control of the auxiliary brake lining friction force when the breakage of the drive chain is detected. It is to implement the auxiliary brake control system of the walker to minimize the degree of injury.
  • the brake system is controlled according to the type and application of the safety system switch to implement the auxiliary brake control system of the pedestrian which minimizes the degree of injury in the event of a safety accident. It aims to do it.
  • the purpose of this study is to implement an auxiliary brake control system of a pedestrian to minimize safety and prevent accidents through distance control.
  • the breaker detecting device for the drive chain of the walker for achieving the above object is a horizontal walker for detecting the breakage of the drive chain in the walker to transfer the driving force of the walker motor through the drive chain to drive the step and the handrail
  • An apparatus for detecting break in a drive chain comprising: load current detecting means for detecting a change in the motor load current; Monitoring the variation of the motor load current detected by the load current detecting means, and the motor load current continuously detects a load current corresponding to the step and the handrail driving load and detects a no-load current value that is a motor exciting current.
  • break detection means for detecting break in the drive chain.
  • the auxiliary brake control system of a walker for achieving the above object comprises: a drive chain break detection device for monitoring a walker motor load and detecting breakage of the drive chain from a change in the motor load; An auxiliary brake that brakes the disc by applying an actuator lining pressure when the drive chain break is detected by the drive chain break detection device; By detecting the motor load of the horizontal walk immediately before the drive chain break detected by the drive chain break detection device, the operating pressure of the auxiliary brake actuator corresponding to the braking distance is calculated and the actuator lining pressure of the auxiliary brake is calculated according to the result of the calculation. It characterized in that it comprises a secondary brake control means for controlling.
  • the auxiliary brake control system of a walker for achieving the above object comprises: a motor load detecting means for monitoring a walker motor load and detecting a system abnormality from a change in the motor load; An auxiliary brake that brakes the disc by applying actuator lining pressure when an abnormality occurs in the motor load detected by the motor load detecting means;
  • the auxiliary load control means for detecting the motor load before and after the motor load detecting means calculates the actuator operating pressure of the auxiliary brake corresponding to the braking distance and controls the actuator lining pressure of the auxiliary brake according to the calculation result. Characterized in that it comprises a.
  • the auxiliary brake control system of a walker for achieving the above object comprises: a motor load sensing means for monitoring a walker motor load change and detecting a system abnormality from the change of the motor load; An auxiliary brake that brakes the disc by applying actuator lining pressure when an abnormality occurs in the motor load detected by the motor load detecting means; Passenger counting means for counting the number of passengers aboard said level walk; When the motor load detecting means detects an abnormality, the braking force and the braking distance according to the number of passengers detected by the passenger counting means are detected, and the operating pressure of the actuator of the auxiliary brake corresponding thereto is calculated, and the auxiliary brake is based on the calculation result. It characterized in that it comprises a secondary brake control means for controlling the actuator lining pressure of the.
  • the motor load detecting means detects an abnormality when detecting at least one of a load change at break of the drive chain, a load change at break of the handrail, and a load change at break of the step chain by detecting the motor load. It is characterized by.
  • the auxiliary brake control system of a walker for achieving the above object comprises: a motor load sensing means for monitoring a walker motor load; Safety state detection means for monitoring an operation state of the walker to detect an abnormal occurrence of a safety system switch; An auxiliary brake that brakes the disc by applying actuator lining pressure when an abnormal occurrence is detected by the safe state detecting means; The actuator of the auxiliary brake corresponding to the braking distance according to the motor load detected by the motor load sensing means before and after the abnormality is detected by the safety state detecting means detects the abnormality occurrence of the safety system switch And an auxiliary brake control means for calculating an operating pressure and controlling the actuator lining pressure of the auxiliary brake according to the calculation result.
  • the auxiliary brake control system of a walker for achieving the above object comprises: a safety state detection means for detecting a safety system switch abnormality by monitoring the operating state of the walker; An auxiliary brake that brakes the disc by applying actuator lining pressure when an abnormal occurrence is detected by the safe state detecting means; Passenger counting means for counting the number of passengers aboard said level walk; When the safety state detecting means detects an abnormality, the braking distance according to the number of passengers detected by the passenger counting means is detected, and the operating pressure of the actuator of the auxiliary brake corresponding thereto is calculated, and the actuator of the auxiliary brake according to the calculation result. It characterized in that it comprises a secondary brake control means for controlling the lining pressure of the.
  • the safety system switch speed detection means, drive chain break detection device, auxiliary brake, hand rail break detection means, hand rail safety switch, step break detection means, skirt guard safety switch, step bump safety switch, step deflection detection switch, It is characterized in that the emergency stop button, any one of the comb safety switch.
  • the auxiliary brake control means may calculate different braking distances and lining pressures of the auxiliary brake actuators depending on whether the horizontal walker is moving in the up or down direction.
  • the auxiliary brake control means characterized in that for calculating the braking distance and the lining pressure of the auxiliary brake actuator in accordance with the running speed of the rising or falling of the walker.
  • the auxiliary brake control means characterized in that for calculating the braking distance and the lining pressure of the auxiliary brake actuator in accordance with the inclination of the walker.
  • the auxiliary brake control system of the pedestrian controls the braking distance by simultaneously controlling the main brake and the auxiliary brake when the other safety system switches are operated, except when the breakage of the drive chain and the gear reducer are detected among the safety system switches installed in the walker. It is characterized by.
  • the auxiliary brake control system of the pedestrian may further include a braking distance measuring unit for measuring an actual braking distance, and the actuator control unit may control the braking to be controlled when the auxiliary braking operation detected through the braking distance measuring unit is controlled. And controlling the auxiliary brake braking while checking the distance and the actual braking distance.
  • the present invention enables the minimization of detection time because the drive chain break detection is based on the motor current detection method by the above configuration, and minimizes the time from the drive chain break detection to the auxiliary brake operation. It is possible to prevent car accidents and minimize the degree of injury.
  • the present invention by the configuration as described above, by controlling the braking force and braking distance according to the driving environment and condition of the pedestrian, such as the driving direction and the angle of installation of the pedestrian and the load of passengers at the time of detecting the breakage of the drive chain and the secondary accident prevention Prevention of accidents and injuries can be minimized.
  • auxiliary brake braking force by adjusting the auxiliary brake braking force according to the type of safety system switch installed in the pedestrian walker excluding breakage of the drive chain to increase the usability of the auxiliary brake by flexibly controlling the pedestrian braking distance Prevent accidents and minimize injuries.
  • FIG. 1 is a schematic diagram illustrating a control system of a conventional walker.
  • Figure 2 is a perspective view illustrating the configuration of the main part of the conventional walker.
  • FIG. 3 is a perspective view illustrating a configuration of a main part of a conventional walker.
  • FIG. 4 is a perspective view illustrating a configuration of an auxiliary brake of a conventional walker.
  • FIG. 5 is a flowchart illustrating an operation process of the auxiliary brake when the driving chain is broken in the conventional walker.
  • Figure 6 is a schematic diagram illustrating a walker control system of an embodiment of the present invention.
  • Figure 7 is a schematic diagram illustrating a walker auxiliary brake control system of a first embodiment of the present invention.
  • FIG 8 is a graph illustrating the change of the motor load current before and after breaking the drive chain of the embodiment of the present invention.
  • Figure 9 is a perspective view illustrating the configuration of the auxiliary brake of the embodiment of the present invention.
  • FIG. 10 is a flowchart illustrating a braking process by the auxiliary brake control system of the horizontal walker according to the first embodiment of the present invention.
  • Figure 11 is a schematic diagram illustrating a walker auxiliary brake control system according to a second embodiment of the present invention.
  • FIG. 12 is a perspective view illustrating an installation state of a safety system switch of a walker according to an embodiment of the present invention.
  • FIG. 13 is a flowchart illustrating a braking process by the auxiliary brake control system of the horizontal walker according to the second embodiment of the present invention.
  • the auxiliary brake control system for the horizontal walker includes a breakage detection device 810 which is a drive chain for detecting occurrence of breakage that is a walker drive body, and the drive chain breakage detection device ( The auxiliary brake 820 operating when the drive chain break is detected by the 810 and the breaker detecting device 810 detects the break in the drive chain immediately after detecting the breaker motor load.
  • the breaking detection device 810 of the drive chain includes load current detection means 811 for detecting a change in the load current of the motor 507, and the motor 507 detected by the load current detection means 811.
  • load current detection means 811 for detecting a change in the load current of the motor 507
  • the motor 507 detected by the load current detection means 811 When the load current of the motor 507 is continuously detected as the load current corresponding to the step and the handrail driving load, and the no-load current value that is the motor excitation current is detected, the drive chain is broken. And breaking detection means 815.
  • the horizontal walker 500 of the present embodiment transmits the driving force of the motor 507 through the drive chain to drive the step and the hand rail, and as shown in FIG. 8, when the drive chain is broken, the load current by the step and the hand rail. Is disappeared and a quiescent current, which is an excitation current, flows to the motor 507.
  • the breaking detection means 815 of this embodiment monitors the motor load current value detected by the load current detecting means 811 and detects this time point to detect breakage of the drive chain.
  • the walker 500 accelerates to reach a normal speed, and a starting current flows to the motor 507 in the process.
  • the motor load current flows to drive the steps and handrails before the passengers board, and when the passengers ride, the loads increase by the number of steps and handrail driving loads and the number of passengers. .
  • These two parts are the motor load current flowing when the drive chain is normal.
  • the drive chain breakage detection device 810 can detect step chain breaks, handrail breaks, etc. in addition to detecting the drive chain breaks. That is, when a decrease in the motor load current corresponding to the load of a step (including passengers) is detected without the increase or decrease of passengers during normal operation of the walker, the step chain failure can be detected and the motor load current corresponding to the load of the handrail can be detected. When a decrease is detected, it is possible to detect a handrail break (or when the handrail extends and the handrail drive part is idle).
  • the auxiliary brake 820 according to the embodiment of the present invention shown in FIG. 9 is mounted coaxially to the step driving sprocket 100 and integrally rotates, and is mounted on one side of the disk 821 and is driven.
  • the chain break detection device 810 includes an auxiliary brake actuator 830 for braking the disc when the drive break is detected.
  • the auxiliary brake actuator 830 of the present embodiment is a caliper 131 mounted on an outer circumferential point of the disk 821, and a brake lining 832 installed inside the caliper 131 to brake the disk 121 by friction. And a piston 840 for applying a pressure for braking the disk 821 to the brake lining 832 and a hydraulic supply means 835 for supplying hydraulic pressure for the operation of the piston 840.
  • auxiliary brake 820 since the auxiliary brake 820 employs a disk auxiliary brake by hydraulic supply type braking, it is possible to adjust the size and braking speed or braking distance of the auxiliary brake braking force according to the situation by changing the lining pressure. .
  • the auxiliary brake control means 850 of the embodiment of the present invention may be provided in the driving control unit 501 of the pedestrian as shown in FIG. 6, and the driving control unit 801 of the embodiment of the present invention may provide various driving signals.
  • a driving signal input unit 530 that receives an input, a photosensor 535 for checking whether a passenger boards during automatic driving, a timer 540 for controlling a driving time, and an up / down driving command unit 550 for driving direction command ),
  • the auxiliary brake control means 850 includes a means 851 for detecting the driving state (eg, the motor load) of the horizontal walk before the breaking of the driving chain detected by the breaking chain detecting device.
  • a braking force calculation means 853 for calculating braking force or actuator lining pressure of the auxiliary brake corresponding to the braking distance set and stored in the database 852, and the calculation result.
  • Actuator control means 855 for controlling the auxiliary brake actuator.
  • the actuator lining pressure of the auxiliary brake of the present embodiment is varied according to the running state of the horizontal walker 500, and the lining pressure when the motor load is large to perform the braking process by a predetermined braking distance at the time of breaking the drive chain. Will be large, and if the motor load is small, the lining pressure can be small.
  • the auxiliary brake control system 800 of the walker of the present embodiment stores in a database an appropriate braking distance (ie, an optimum braking distance for maximally protecting the safety of the passenger) in the ascending or descending direction.
  • the horizontal walker auxiliary brake control system 500 of the present embodiment can set the braking distance differently according to the driving direction of the horizontal walker, the speed of the up or down driving, the installation angle of the horizontal walker, whether the passenger boarding, etc.
  • the operating speed of the brake 820 or the lining pressure itself of the auxiliary brake actuator 830 may be calculated differently.
  • the lining pressure of the auxiliary brake actuator 830 is gradually changed in correspondence to the braking distance, and the final pressure at the stop may be determined according to the installation angle of the walker and the motor load.
  • the auxiliary brake 820 does not operate, the step continues to descend, and shifting occurs when the drive chain is broken. Passengers may fall, but if the step continues without descending, the passengers fall down and the passengers in the back fall down in series, causing large accidents, so the auxiliary brake 820 operates to maintain a constant braking distance. It is required to prevent accidents caused by The actuator lining pressure of the auxiliary brake is gradually changed to secure the preset braking distance according to the speed of the descent operation and the installation angle of the walker, and the final pressure at the time of stopping depends on the installation angle of the walker 500 and the motor load. Can be determined.
  • the detection of the motor load is performed by monitoring the load current detected by the load current detecting means 811 and detecting the motor load current immediately before the drive chain breaks, but is not limited thereto. .
  • the actuator lining pressure of the auxiliary brake by calculating the motor load based on the angle of installation of the walker, the number of passengers, the driving direction and the driving speed.
  • the auxiliary brake control process of the horizontal walker according to the first embodiment of the present invention is as follows.
  • a motor load current corresponding to the load of the step, the handrail, and the passenger flows (steps 600 and 601).
  • the drive chain break detection device 810 detects that a break has occurred in the drive chain when the motor load current flows and the no load current is detected, and inputs the signal to the auxiliary brake control means 850 (steps 603 and 605). ).
  • the auxiliary brake control means 850 calculates the braking force for securing a safe braking distance, that is, the lining pressure of the auxiliary brake actuator, by combining the driving direction of the horizontal walker 500 and the motor load current and the horizontal walker installation angle before the breakage of the drive chain. Input to the actuator control means 855 (steps 607 and 608).
  • the actuator control means 855 controls the auxiliary brake actuator pressure so that the walker step and the handrail can be stopped by the safe braking distance (steps 609 and 610).
  • the auxiliary brake control system 900 of the walker according to the second embodiment of the present invention, the motor load detection means 910 for monitoring the walker motor load, and monitoring the operation state of the walker to detect the occurrence of safety system switch abnormality
  • the auxiliary brake 920 which operates when an abnormal occurrence is detected by the safety state detecting means 960, and the safety system switches 961 to 972 in which the abnormal occurrence is detected.
  • auxiliary brake control means 950 for calculating an operating pressure of the auxiliary brake 920 according to a corresponding braking distance value and an abnormal motor load immediately and controlling the auxiliary brake 920 according to the calculation result.
  • the motor load detecting means 910 of the present embodiment monitors the motor load current and detects the motor load current before the safety system switch abnormality occurs, but is not limited thereto.
  • the actuator lining pressure of the auxiliary brake by calculating the motor load based on the angle of installation of the walker, the number of passengers, the driving direction, and the driving speed.
  • the safe state detecting means 960 of the present embodiment includes a speed detecting device 961, a drive chain breaking detection device 962, an auxiliary brake device 963, a handrail breaking detection device 964, and a handrail safety switch 965. ), Step chain break detection device 966, skirt guard safety switch 912, step bump safety switch 971, step deflection detection switch 969, emergency stop button 968, comb safty switch Monitoring the safety state detection means, including (967), and detects any abnormality in any one of the safety system switches being monitored and inputs it to the operation control unit 501 or the auxiliary brake control means (950).
  • the drive chain breakage detection device 962 of the safe state detection means of this embodiment may be based on the drive chain breakage detection device of the first embodiment, but it is also possible to use the drive chain breakage detection limit switch as in the prior art. The detection method can be changed accordingly.
  • the step break detection device 966 and the handrail break detection device 964 may also be detected by monitoring the motor load current by the drive chain break detection device in the case of the first embodiment. As in the case of the embodiment, it is also possible to provide a separate safety system switch to detect.
  • the auxiliary brake control means 950 of the embodiment of the present invention may be provided in the operation control unit 501, the configuration of the operation control unit of the embodiment of the present invention in the same process as the first embodiment By controlling the operation of the auxiliary brake.
  • the auxiliary brake control means 950 of the embodiment of the present invention detects a braking distance value corresponding to the safety system switch in which the safety state detecting means 960 detects an abnormal occurrence in the database 952, and loads the motor.
  • the detection means 951 detects the driving state (eg, the motor load) of the horizontal walk immediately before an abnormality occurs, calculates the braking force or the actuator lining pressure of the auxiliary brake corresponding to the braking distance, and calculates the auxiliary brake according to the calculation result.
  • Safety state detection means 960 in the horizontal walk of the embodiment of the present invention speed detection means 961, drive chain break detection device 962, auxiliary brake device 963, handrail break detection device 964, hand Rail safety switch 965, step break detection device 966, skirt guard safety switch 912, step bump safety switch 971, step deflection detection switch 969, emergency stop button 968, comb safety switch ( A safety system switch including a comb safty switch 967 is provided.
  • each safety system switch has a different use purpose according to its type, and the specific safety system switch has a very short braking distance, and the other safety system switch may have no problem even if the braking distance is long.
  • the braking distance can be set differently according to the switch type and usage.
  • the comb safety switch 967 is located at a portion where the front step of the walker is folded, and when the finger is sucked with the step, the passenger may be seriously injured. Therefore, the walker 500 should be stopped immediately.
  • the main brake and the auxiliary brake operate immediately, the main brake operates to stop the horizontal walk, and the lining pressure of the auxiliary brake actuator also immediately applies the maximum pressure to stop the driving of the step immediately without slipping.
  • a response to the comb safety switch 967 is made in preference to another passenger's safety problem (ordinary danger).
  • the handrail break detection means 964, the handrail safety switch 965, the step break detection means 966, the skirt guard safety switch 972, the step bump safety switch 971, the step deflection detection When the switch 969 and the emergency stop button 968 are operated, it is advantageous to maintain a constant braking distance for the safety of the passenger, so that the driving direction of the walker, the rising or falling movement speed, the inclination of the walker, the passenger
  • the braking distance at which the horizontal walkers can be stopped safely is set in advance according to the boarding status, the degree of danger of the safety system switch, and the auxiliary brake actuator lining pressure is determined by calculating or detecting the required braking force according to the passenger load.
  • the braking force and braking distance can be adjusted only by the auxiliary brake 920 because the main brake operation is meaningless, but in other cases, the main brake and the auxiliary brake ( 920 to allow the walker to stop safely.
  • the main brake is operated so that the walker can be safely stopped without slipping down. can do.
  • the process of braking the walker by controlling the lining pressure of the auxiliary brake actuator to correspond to the passenger load of the step and the braking distance set in the database is as follows (700).
  • any one of the safety system switches operates (steps 701, 702, and 703).
  • the breakage detection itself of the drive chain can be detected by the method of the first embodiment which detects the variation of the motor load current or by the break detection limit switch of the drive chain, and the drive chain breakage.
  • the auxiliary brake 920 can be controlled by calculating the braking force of the auxiliary brake or the actuator lining pressure of the auxiliary brake by the same procedure as in the first embodiment (S605). Step 610).
  • the auxiliary brake operation is performed by the following process.
  • the braking distance value when the safety system switch is operated for each type of safety switch is stored in the database in advance, and when the safety system switch operates during the operation of the walker, the auxiliary brake control means 950 operates any safety system switch. Then, check the braking distance data corresponding to the safety system switch (step 703).
  • the auxiliary brake control means 950 is a braking force for the auxiliary brake actuator for controlling the braking distance by combining the driving direction and the load current immediately before the safety system switch operates, and the load that is directed toward the lower side according to the installation angle of the horizontal walker installed at the site. After the calculation is started to apply the lining pressure of the auxiliary brake actuator, the horizontal walk slowly begins to decelerate (steps 705, 707 and 708).
  • the main brake and the auxiliary brake 920 operate together to adjust the desired braking distance stored in the database in the braking process of the walker. It is possible to carry out.
  • the main brake operates to prevent the safety accident risk of sliding down due to the passenger load of the step.
  • the braking distance measuring means 980 for calculating the moving distance according to the rotation of the motor is provided with a pulse count sensor, the braking is set by the pulse count sensor in the process of braking by the auxiliary brake 920 It is possible to confirm that control has been made to the distance.
  • Break detection means 820,920 Auxiliary brake
  • the present invention relates to a breakage detecting device for a horizontal walker and an auxiliary brake control system for a walker, and the breakage detection of the drive chain is based on a motor current detection method, thereby minimizing the detection time.
  • a motor current detection method By minimizing the time up to the motor load and by appropriately changing the braking force and braking distance of the auxiliary brake, it is possible to prevent passenger accidents, prevent secondary accidents, and minimize the degree of injury. It is for the industrial brake control system of walker.

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Abstract

La présente invention concerne un système de commande d'un frein auxiliaire d'un tapis roulant horizontal. Le système de commande d'un frein auxiliaire d'un tapis roulant horizontal, selon la présente invention, comprend : un dispositif de détection de rupture de chaîne d'entraînement qui surveille une charge de moteur du tapis roulant horizontal et détecte la rupture d'une chaîne d'entraînement à partir d'un changement de la charge de moteur ; un frein auxiliaire qui fait ralentir ou arrêter un disque en appliquant une pression de garniture d'actionneur lorsque la rupture de la chaîne d'entraînement est détectée par le dispositif de détection de rupture de chaîne d'entraînement ; et un moyen de commande de frein auxiliaire qui calcule une pression de fonctionnement d'actionneur du frein auxiliaire qui correspond à une distance de freinage en détectant la charge de moteur du tapis roulant horizontal peu de temps avant la rupture de la chaîne d'entraînement qui est détectée par le dispositif de détection de rupture de chaîne d'entraînement, et commande la pression de garniture d'actionneur du frein auxiliaire en fonction du résultat du calcul.
PCT/KR2015/009782 2014-09-23 2015-09-21 Appareil pour détecter une rupture d'une chaîne d'entraînement de tapis roulant horizontal et système de commande de frein auxiliaire de tapis roulant horizontal WO2016047966A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020140127171A KR101749382B1 (ko) 2014-09-23 2014-09-23 수평보행기의 구동체인 파단 검출장치 수평보행기의 보조브레이크 제어시스템
KR10-2014-0127171 2014-09-23

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WO2016047966A2 true WO2016047966A2 (fr) 2016-03-31
WO2016047966A3 WO2016047966A3 (fr) 2017-05-18

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KR101925569B1 (ko) * 2016-08-17 2019-02-27 송종태 듀얼 모터 에스컬레이터 브레이크 제어시스템
KR20230102389A (ko) 2021-12-30 2023-07-07 세라에스이(주) 에스컬레이터 구동체인 변형 감지장치

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JP2004059165A (ja) * 2002-07-25 2004-02-26 Hitachi Ltd 乗客コンベア及びその制動装置
JP2008007245A (ja) * 2006-06-28 2008-01-17 Hitachi Ltd 乗客コンベア
JP5165692B2 (ja) * 2006-12-21 2013-03-21 オーチス エレベータ カンパニー 乗客コンベア手摺り駆動装置
JP2008290846A (ja) * 2007-05-24 2008-12-04 Mitsubishi Electric Corp 乗客コンベアのブレーキ装置
JP4817203B2 (ja) * 2009-03-11 2011-11-16 東芝エレベータ株式会社 乗客コンベアの補助ブレーキ装置
JP5777345B2 (ja) * 2011-01-27 2015-09-09 三菱電機株式会社 マンコンベアの制動装置
JP5924673B2 (ja) * 2012-04-25 2016-05-25 三菱電機株式会社 マンコンベア
JP2014062156A (ja) * 2012-09-20 2014-04-10 Jfe Steel Corp スクリューフィーダ駆動チェーンの断線検出方法および装置

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KR101749382B1 (ko) 2017-06-21
WO2016047966A3 (fr) 2017-05-18

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