CN116022612A - Auxiliary inclined shaft pedestrian bridge crossing safe passing control method and bridge crossing control system thereof - Google Patents
Auxiliary inclined shaft pedestrian bridge crossing safe passing control method and bridge crossing control system thereof Download PDFInfo
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Abstract
The invention discloses a pedestrian bridge crossing safe passing control method and a bridge crossing control system for a secondary inclined shaft, wherein the method is switched into an automatic mode during normal operation: when the passenger transport device stops, the pedestrian crossing is converted into a state of prohibiting the passage of pedestrians; when the manned device is started, the pedestrian crossing is converted into a state allowing the pedestrian to pass before the manned device starts to approach or depart from the parking spot and stops again; when the locking between the man-carrying device and the elevator fails, the locking control mode of the elevator is started: when the elevator is started, the pedestrian crossing is converted into a state of prohibiting pedestrian traffic; under the emergency passing requirement, switching to a near control manual mode: a switching button is manually operated to switch the passing state of pedestrians; and when the emergency treatment is failed, the system is switched to a mechanical manual mode. According to the invention, through the cooperative control of the bridge crossing control system and the oil cylinder control loop, the conversion control of the pedestrian bridge crossing traffic state is realized under the multi-mode and multi-condition, and the pedestrian traffic safety is effectively ensured through flexible control.
Description
Technical Field
The invention relates to the technical field of pedestrian crossing safety traffic control of auxiliary inclined shafts.
Background
In a secondary inclined shaft, a hoist for lifting materials and a manned device are generally arranged, the hoist and the manned device move on a track arranged along the length direction of a roadway of the secondary inclined shaft, parking points are arranged on two sides of the track corresponding to coal beds, a target coal bed is sometimes needed to be reached across the track after the vehicle is taken off, pedestrian safety is ensured, the safety of pedestrians is realized by setting a pedestrian bridge capable of being adjusted relative to the track, the passing state of the pedestrian bridge is controlled, the passing of the pedestrians is forbidden under the condition of high risk, and the passing safety of the pedestrians is ensured.
Disclosure of Invention
The invention aims to: in order to overcome the defects in the prior art, the invention provides a pedestrian crossing safety passing control method and a crossing control system for a secondary inclined shaft, which realize the switching control of the pedestrian crossing passing state under the multi-mode and multi-condition through the cooperative control of the crossing control system and an oil cylinder control loop and effectively ensure the safety of pedestrian passing through flexible control.
The technical scheme is as follows: in order to achieve the above purpose, the invention relates to a pedestrian bridge crossing safe passing control method and a bridge crossing control system thereof for a secondary inclined shaft, which realize a multi-mode pedestrian bridge crossing passing control mode through the bridge crossing passing control system, and specifically comprise an automatic mode, a lifter locking control mode, a near control manual mode and a mechanical manual mode; the control circuit of the oil cylinder controls the expansion and contraction of the oil cylinder to change the passing state of the pedestrians at the two sides of the rail of the passing bridge relative to the parking point, and the control circuit specifically comprises a state allowing pedestrians to pass and a state prohibiting pedestrians from passing;
the pedestrian bridge passing safety traffic control method based on the multiple modes comprises the following specific implementation steps:
step I, switching to an automatic mode during normal operation: when the passenger transport device stops, the pedestrian crossing is converted into a state of prohibiting the passage of pedestrians; when the manned device is started, the pedestrian crossing is converted into a state allowing the pedestrian to pass before the manned device starts to approach or depart from the parking spot and stops again; through the locking connection between the man-carrying device and the elevator, the situation that pedestrians pass through the bridge and are converted into a state of prohibiting pedestrians from passing when the elevator is started is indirectly realized;
step II, when the locking between the man-carrying device and the elevator fails, starting an elevator locking control mode: when the elevator is started, the pedestrian crossing is converted into a state of prohibiting pedestrian traffic;
step III, switching to a near control manual mode under the condition of emergency passing demand: on the premise of ensuring safety in observation, the pedestrian passing state is converted according to the requirement by manually operating a conversion button;
step IV, switching to a mechanical manual mode when the fault is overhauled or treated in an emergency mode: on the premise of ensuring safety by observation, the pedestrian passing state is converted according to the requirement by manually operating the mechanical operating rod.
Further, the mode switching implementation flow: when the change-over switch SA1 rotates to the linkage position, the change-over switch SA2 rotates to the automatic position of the manned device and is switched to an automatic mode; when the locking of the elevator and the man-carrying device fails, switching to an elevator locking control mode; when the change-over switch SA1 rotates to the linkage position, the change-over switch SA2 rotates to the near-control manual position and is switched to the near-control manual mode; when the change-over switch SA1 is turned to the mechanical manual position, the operation is switched to the mechanical manual mode.
Further, in the automatic mode, the traffic state transition implementation flow:
when the man-carrying device is started, the man-carrying device controls the switch relay and outputs a closing point to the relay KA6 at the same time, so that the relay KA6 is powered on and closed, the normally open point of the relay KA6 controls the relay KA1, the normally closed point of the proximity switch is powered on and closed, the normally open point of the relay KA1 controls the relay KA3, the normally open point of the relay KA3 is powered on and closed to control the hydraulic station, the hydraulic station of the relay KA5 is started, meanwhile, the electromagnetic valves 1YA and 1YA are powered on, an oil way is conducted, the passing state begins to be converted, the limit action KA1 of the proximity switch 1 is stopped after the passing state of pedestrians is converted, a control loop of the relay KA3 and the electromagnetic valve 1YA is cut off, and the passing state of the pedestrians is converted to be controlled to be completed;
when the man-moving device stops, the relay KA6 is powered off, the normally closed point of the relay KA6 controls the relay KA2, the normally open point of the relay KA2 controls the relays KA4 and KA5, the hydraulic station starts the electromagnetic valve 2YA to be attracted, the oil way is conducted, the passing state starts to be converted, the passing state is converted into the pedestrian passing state forbidden, the approaching switch 2 is limited after the passing state of the passing pedestrian is converted, and the passing state control of the pedestrian is converted into the pedestrian passing state forbidden.
Further, in the elevator locking control mode, the control flow of the traffic state conversion is realized: the elevator starts, and elevator driving signal relay actuation, normally closed point disconnection relay KA6, relay KA6 normally closed point control relay KA2 normally closed point, control relay KA4, KA5, hydraulic pressure station start solenoid valve 2YA actuation, the oil circuit switches on, and the traffic state changes to banning pedestrian traffic state, and pedestrian crossing bridge changes to banning pedestrian traffic state control completion.
Further, in the near-control manual mode, the control flow of the traffic state transition is realized:
when the pedestrian needs emergency passing: pressing a start button SB3, electrically sucking and self-protecting a relay KA1, controlling a relay KA3 by a normally open point of the relay KA1, electrically sucking the relay KA3, closing a control hydraulic station by a normally open point of the relay KA3, starting a hydraulic station of the relay KA5, simultaneously starting an electromagnetic valve 1YA, electrically sucking the electromagnetic valve 1YA, conducting an oil way, starting switching a passing state, stopping the limit action KA1 of a proximity switch 1 after the pedestrian bridge passing is switched to a pedestrian passing state, cutting off a control loop of the relay KA3, switching the relay KA5 and the electromagnetic valve 1YA, and finishing the pedestrian bridge passing control;
when the passerby needs to be forbidden in emergency: and when a start button SB4 is pressed, the relay KA2 is electrified and sucked and self-protected, normally open points of the relay KA2 control the relays KA4 and KA5, the hydraulic station starts the electromagnetic valve 2YA to suck, an oil way is conducted, the passing state starts to be converted, the pedestrian bridge is converted into the pedestrian passing forbidden state, then the proximity switch 2 is used for limiting, and the pedestrian bridge is converted into the pedestrian passing forbidden state to control and finish.
Further, in the mechanical manual mode, the control flow of the traffic state transition is realized: when the starting button SB2 is pressed, the relay KA5 is electrically attracted to self-hold, the hydraulic station starts to work, and the mechanical operating rod of the electromagnetic valve is manually operated to realize the transition of the passing state.
Further, the system comprises a passing control system for realizing mode conversion and controlling the passing state conversion of the pedestrian passing under each mode, and an oil cylinder control loop for realizing the passing state conversion of the pedestrian passing.
The beneficial effects are that: the invention relates to a pedestrian bridge crossing safe passing control method and a bridge crossing control system for a secondary inclined shaft, which at least comprise the following advantages:
(1) Through the cooperative control of the bridge crossing control system and the oil cylinder control loop, the switching control of the pedestrian bridge crossing traffic state under the multi-mode and multi-condition is realized, and the pedestrian traffic safety is effectively ensured through flexible control.
(2) By matching the locking of the man-carrying device and the elevator in the automatic mode, the ordered passing of the man and the car is realized in the normal working state.
(3) By setting the locking control mode of the elevator, the elevator is used as a backup protection for the locking failure of the man-carrying device and the elevator, and the ordered passing of the man and the car is maintained.
(4) The manual mode is used for meeting the traffic demand of people and vehicles under emergency conditions and further guaranteeing the traffic safety of people and vehicles.
Drawings
FIG. 1 is a block diagram of a pedestrian bridge passing safety control method for a secondary inclined shaft;
FIG. 2 is a schematic diagram of the connection of control circuits of the passing control system;
fig. 3 is a schematic diagram of the connection of the cylinder control loop and the cylinder.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
1-3, a pedestrian passing-bridge safe passing control method and a passing-bridge control system for a secondary inclined shaft, wherein a multi-mode pedestrian passing-bridge passing control mode is realized through the passing-bridge passing control system, and the method specifically comprises an automatic mode, a lifter locking control mode, a near control manual mode and a mechanical manual mode; the control circuit of the oil cylinder controls the expansion and contraction of the oil cylinder to change the passing state of the pedestrians at the two sides of the rail of the passing bridge relative to the parking point, and the control circuit specifically comprises a state allowing pedestrians to pass and a state prohibiting pedestrians from passing; as shown in fig. 1, the specific implementation steps of the pedestrian bridge-crossing safe traffic control mode based on the multiple modes are as follows:
step I, switching to an automatic mode during normal operation: when the passenger transport device stops, the pedestrian crossing is converted into a state of prohibiting the passage of pedestrians; when the manned device is started, the pedestrian crossing is converted into a state allowing the pedestrian to pass before the manned device starts to approach or depart from the parking spot and stops again; through the locking connection between the man-carrying device and the elevator, the situation that pedestrians pass through the bridge and are converted into a state of prohibiting pedestrians from passing when the elevator is started is indirectly realized;
step II, when the locking between the man-carrying device and the elevator fails, starting an elevator locking control mode: when the elevator is started, the pedestrian crossing is converted into a state of prohibiting pedestrian traffic;
step III, switching to a near control manual mode under the condition of emergency passing demand: on the premise of ensuring safety in observation, the pedestrian passing state is converted according to the requirement by manually operating a conversion button;
step IV, switching to a mechanical manual mode when the fault is overhauled or treated in an emergency mode: on the premise of ensuring safety by observation, the pedestrian passing state is converted according to the requirement by manually operating the mechanical operating rod.
According to the regulations of coal mine safety, in a secondary inclined shaft, a lifting machine and a conveyor device are required to be locked, namely, the two devices cannot be started simultaneously, and as the lifting machine and the conveyor device rarely have the state of simultaneous stopping during normal underground operation, the safety of pedestrians crossing a track is considered; due to the existence of the lock, when the man-carrying device is stopped, the elevator is likely to be in a starting state, so that the passerby is forbidden to pass when the man-carrying device is stopped, the passerby is prevented from passing when the elevator is started, and the passerby passing safety can be effectively ensured.
If the locking between the conveyor device and the elevator fails, the elevator locking control mode is automatically started, the locking effect of the conveyor device and the elevator is consistent with the locking effect of the conveyor device and the elevator, when the elevator is started, pedestrians are forbidden to pass across the track, the control loop is started only after the locking fails, and in daily operation, only the automatic mode part and the locking are used for coordinated control, so that the energy consumption can be effectively saved.
In the emergency situation, the control part capable of being manually operated is also provided, for example, when the man-carrying device and the lifter are in a long-time rest and stop operation, because in an automatic mode, the man-carrying device and the lifter cannot pass through the control part, when emergency passing is needed at the moment, the man-carrying device can be switched into a near control manual mode, under the condition of ensuring safety through observation, the passing button is allowed to pass through automatically through manual operation, and after passing, the passing button is forbidden to recover to an forbidden passing state through manual operation, and of course, the button is only used under special emergency conditions, and needs to be used in cooperation with corresponding management regulations and control the use authority of the man-carrying device and the lifter through corresponding measures, so that the safety problem caused by malicious operation is avoided.
In addition, when a fault occurs in the control circuit system, the system cannot normally operate according to the original logic in an automatic mode, and when the close control manual operation fails, the opening and closing of the electromagnetic valve can be manually changed by directly operating the mechanical operating rod in a state that the hydraulic pump is started, so that the expansion and contraction of the oil cylinder can be directly controlled to change the passing state of the bridge.
In summary, the scheme realizes the orderly control of the cross traffic of the pedestrians and the vehicles through the flexible control of multiple modes, ensures the traffic safety of the pedestrians, protects the pedestrians step by step in multiple modes, can take effective counter measures under the condition of coping with multiple emergency conditions, and further ensures the traffic safety of the pedestrians passing a bridge.
As a pedestrian bridge crossing preferred embodiment conforming to the control method, the pedestrian bridge crossing can adopt a folding rotary two-section bridge crossing structure, and the movable part is driven to fold and overturn relative to the fixed part through the oil cylinder, so that the rapid conversion of the passing state of the pedestrian bridge crossing is realized.
As a preferred embodiment, the bridge passing control system shown in fig. 2-3 comprises a bridge passing control system for realizing mode conversion and controlling the pedestrian bridge passing state conversion in each mode, and an oil cylinder control loop for realizing the pedestrian bridge passing state conversion; based on the control loop in the figure, the specific implementation flow of the pedestrian bridge-crossing safe passing control method is as follows:
the switching among the modes is realized through the common control of the change-over switch SA1 and the change-over switch SA2, and the mode switching specifically realizes the flow: when the change-over switch SA1 rotates to the linkage position, the change-over switch SA2 rotates to the automatic position of the manned device and is switched to an automatic mode; when the locking of the elevator and the man-carrying device fails, switching to an elevator locking control mode; when the change-over switch SA1 rotates to the linkage position, the change-over switch SA2 rotates to the near-control manual position and is switched to the near-control manual mode; when the change-over switch SA1 is turned to the mechanical manual position, the operation is switched to the mechanical manual mode.
In the automatic mode, the traffic state transition implementation flow:
when the man-carrying device is started, the man-carrying device controls the switch relay and outputs a closing point to the relay KA6 at the same time, so that the relay KA6 is powered on and closed, the normally open point of the relay KA6 controls the relay KA1, the normally closed point of the proximity switch is powered on and closed, the normally open point of the relay KA1 controls the relay KA3, the normally open point of the relay KA3 is powered on and closed to control the hydraulic station, the hydraulic station of the relay KA5 is started, meanwhile, the electromagnetic valves 1YA and 1YA are powered on, an oil way is conducted, the passing state begins to be converted, the limit action KA1 of the proximity switch 1 is stopped after the passing state of pedestrians is converted, a control loop of the relay KA3 and the electromagnetic valve 1YA is cut off, and the passing state of the pedestrians is converted to be controlled to be completed;
when the man-moving device stops, the relay KA6 is powered off, the normally closed point of the relay KA6 controls the relay KA2, the normally open point of the relay KA2 controls the relays KA4 and KA5, the hydraulic station starts the electromagnetic valve 2YA to be attracted, the oil way is conducted, the passing state starts to be converted, the passing state is converted into the pedestrian passing state forbidden, the approaching switch 2 is limited after the passing state of the passing pedestrian is converted, and the passing state control of the pedestrian is converted into the pedestrian passing state forbidden.
In a locking control mode of the elevator, the control flow for realizing the transition of the traffic state is as follows: the elevator starts, and elevator driving signal relay actuation, normally closed point disconnection relay KA6, relay KA6 normally closed point control relay KA2 normally closed point, control relay KA4, KA5, hydraulic pressure station start solenoid valve 2YA actuation, the oil circuit switches on, and the traffic state changes to banning pedestrian traffic state, and pedestrian crossing bridge changes to banning pedestrian traffic state control completion.
In a near control manual mode, the control flow for realizing the transition of the traffic state is as follows:
when the pedestrian needs emergency passing: pressing a start button SB3, electrically sucking and self-protecting a relay KA1, controlling a relay KA3 by a normally open point of the relay KA1, electrically sucking the relay KA3, closing a control hydraulic station by a normally open point of the relay KA3, starting a hydraulic station of the relay KA5, simultaneously starting an electromagnetic valve 1YA, electrically sucking the electromagnetic valve 1YA, conducting an oil way, starting switching a passing state, stopping the limit action KA1 of a proximity switch 1 after the pedestrian bridge passing is switched to a pedestrian passing state, cutting off a control loop of the relay KA3, switching the relay KA5 and the electromagnetic valve 1YA, and finishing the pedestrian bridge passing control;
when the passerby needs to be forbidden in emergency: and when a start button SB4 is pressed, the relay KA2 is electrified and sucked and self-protected, normally open points of the relay KA2 control the relays KA4 and KA5, the hydraulic station starts the electromagnetic valve 2YA to suck, an oil way is conducted, the passing state starts to be converted, the pedestrian bridge is converted into the pedestrian passing forbidden state, then the proximity switch 2 is used for limiting, and the pedestrian bridge is converted into the pedestrian passing forbidden state to control and finish.
In the mechanical manual mode, the control flow for realizing the passing state conversion is as follows: when the starting button SB2 is pressed, the relay KA5 is electrically attracted to self-hold, the hydraulic station starts to work, and the mechanical operating rod of the electromagnetic valve is manually operated to realize the transition of the passing state.
The foregoing description is only of the preferred embodiments of the invention, it being noted that: it will be apparent to those skilled in the art that numerous modifications and adaptations can be made without departing from the principles of the invention described above, and such modifications and adaptations are intended to be comprehended within the scope of the invention.
Claims (7)
1. The auxiliary inclined shaft pedestrian bridge crossing safe passing control method and the bridge crossing control system thereof are characterized in that a multi-mode pedestrian bridge crossing passing control mode is realized through the bridge crossing control system, and the auxiliary inclined shaft pedestrian bridge crossing safe passing control method specifically comprises an automatic mode, a hoisting machine locking control mode, a near control manual mode and a mechanical manual mode; the control circuit of the oil cylinder controls the expansion and contraction of the oil cylinder to change the passing state of the pedestrians at the two sides of the rail of the passing bridge relative to the parking point, and the control circuit specifically comprises a state allowing pedestrians to pass and a state prohibiting pedestrians from passing; the pedestrian bridge passing safety traffic control method based on the multiple modes comprises the following specific implementation steps:
step I, switching to an automatic mode during normal operation: when the passenger transport device stops, the pedestrian crossing is converted into a state of prohibiting the passage of pedestrians; when the manned device is started, the pedestrian crossing is converted into a state allowing the pedestrian to pass before the manned device starts to approach or depart from the parking spot and stops again; through the locking connection between the man-carrying device and the elevator, the situation that pedestrians pass through the bridge and are converted into a state of prohibiting pedestrians from passing when the elevator is started is indirectly realized;
step II, when the locking between the man-carrying device and the elevator fails, starting an elevator locking control mode: when the elevator is started, the pedestrian crossing is converted into a state of prohibiting pedestrian traffic;
step III, switching to a near control manual mode under the condition of emergency passing demand: on the premise of ensuring safety in observation, the pedestrian passing state is converted according to the requirement by manually operating a conversion button;
step IV, switching to a mechanical manual mode when the fault is overhauled or treated in an emergency mode: on the premise of ensuring safety by observation, the pedestrian passing state is converted according to the requirement by manually operating the mechanical operating rod.
2. The method for controlling pedestrian crossing safety traffic of auxiliary inclined shaft and the crossing control system thereof according to claim 1, wherein the mode switching implementation flow is as follows: when the change-over switch SA1 rotates to the linkage position, the change-over switch SA2 rotates to the automatic position of the manned device and is switched to an automatic mode; when the locking of the elevator and the man-carrying device fails, switching to an elevator locking control mode; when the change-over switch SA1 rotates to the linkage position, the change-over switch SA2 rotates to the near-control manual position and is switched to the near-control manual mode; when the change-over switch SA1 is turned to the mechanical manual position, the operation is switched to the mechanical manual mode.
3. The method for controlling pedestrian crossing safety traffic of auxiliary inclined shaft according to claim 2, wherein in the automatic mode, traffic state transition implementation flow:
when the man-carrying device is started, the man-carrying device controls the switch relay and outputs a closing point to the relay KA6 at the same time, so that the relay KA6 is powered on and closed, the normally open point of the relay KA6 controls the relay KA1, the normally closed point of the proximity switch is powered on and closed, the normally open point of the relay KA1 controls the relay KA3, the normally open point of the relay KA3 is powered on and closed to control the hydraulic station, the hydraulic station of the relay KA5 is started, meanwhile, the electromagnetic valves 1YA and 1YA are powered on, an oil way is conducted, the passing state begins to be converted, the limit action KA1 of the proximity switch 1 is stopped after the passing state of pedestrians is converted, a control loop of the relay KA3 and the electromagnetic valve 1YA is cut off, and the passing state of the pedestrians is converted to be controlled to be completed;
when the man-moving device stops, the relay KA6 is powered off, the normally closed point of the relay KA6 controls the relay KA2, the normally open point of the relay KA2 controls the relays KA4 and KA5, the hydraulic station starts the electromagnetic valve 2YA to be attracted, the oil way is conducted, the passing state starts to be converted, the passing state is converted into the pedestrian passing state forbidden, the approaching switch 2 is limited after the passing state of the passing pedestrian is converted, and the passing state control of the pedestrian is converted into the pedestrian passing state forbidden.
4. The auxiliary inclined shaft pedestrian bridge passing safety traffic control method according to claim 3, wherein in a hoisting machine locking control mode, a traffic state switching control flow is realized: the elevator starts, and elevator driving signal relay actuation, normally closed point disconnection relay KA6, relay KA6 normally closed point control relay KA2 normally closed point, control relay KA4, KA5, hydraulic pressure station start solenoid valve 2YA actuation, the oil circuit switches on, and the traffic state changes to banning pedestrian traffic state, and pedestrian crossing bridge changes to banning pedestrian traffic state control completion.
5. The method for controlling pedestrian crossing safety traffic of a secondary inclined shaft according to claim 4, wherein in a near control manual mode, a control flow of traffic state transition is realized:
when the pedestrian needs emergency passing: pressing a start button SB3, electrically sucking and self-protecting a relay KA1, controlling a relay KA3 by a normally open point of the relay KA1, electrically sucking the relay KA3, closing a control hydraulic station by a normally open point of the relay KA3, starting a hydraulic station of the relay KA5, simultaneously starting an electromagnetic valve 1YA, electrically sucking the electromagnetic valve 1YA, conducting an oil way, starting switching a passing state, stopping the limit action KA1 of a proximity switch 1 after the pedestrian bridge passing is switched to a pedestrian passing state, cutting off a control loop of the relay KA3, switching the relay KA5 and the electromagnetic valve 1YA, and finishing the pedestrian bridge passing control;
when the passerby needs to be forbidden in emergency: and when a start button SB4 is pressed, the relay KA2 is electrified and sucked and self-protected, normally open points of the relay KA2 control the relays KA4 and KA5, the hydraulic station starts the electromagnetic valve 2YA to suck, an oil way is conducted, the passing state starts to be converted, the pedestrian bridge is converted into the pedestrian passing forbidden state, then the proximity switch 2 is used for limiting, and the pedestrian bridge is converted into the pedestrian passing forbidden state to control and finish.
6. The method for controlling pedestrian crossing safety traffic of a secondary inclined shaft according to claim 5, wherein in a mechanical manual mode, the control flow of traffic state transition is realized: when the starting button SB2 is pressed, the relay KA5 is electrically attracted to self-hold, the hydraulic station starts to work, and the mechanical operating rod of the electromagnetic valve is manually operated to realize the transition of the passing state.
7. The bridge passing control system in the auxiliary inclined shaft pedestrian bridge passing safety traffic control method according to any of claims 1-6, wherein: the system comprises a passing control system for realizing mode conversion and controlling pedestrian passing state conversion under each mode, and an oil cylinder control loop for realizing pedestrian passing state conversion.
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