JP3364516B2 - Emergency stop device for doors in hangar - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency stop device for a door that opens and closes an opening of a hangar of an aircraft or the like. 2. Description of the Related Art A hangar in which aircraft are stored has a height of at least 20 m and a width of 100 to accommodate a large aircraft.
m or more may be required. An opening / closing door that opens and closes such an opening is usually constituted by a pair of sliding doors that open the opening left and right.
Each sliding door is configured by arranging a plurality of large doors having a width of about 12 to 16 m and a height reaching the upper edge of the opening along the left-right direction of the opening. Each large door is provided with a traveling wheel and an electric motor for driving the traveling wheel, and each large door is moved by the electric motor and the traveling wheel. In addition, a trolley bus duct to which three-phase alternating current is supplied is arranged at the upper edge of the opening of the hangar, which is a moving area of the large door, while each large door is electrically connected to the trolley bus duct. Connected and slidable current collectors are provided. Then, the three-phase alternating current supplied from the trolley bus duct is supplied to the electric motor provided on each large door via a current collector. [0004] In such a hangar opening / closing door, in order to prevent an accident or the like, each large door running to open / close the opening of the hangar must have an emergency door. An emergency stop device for stopping is provided. This emergency stop device usually cuts off three transmission lines so that all of the three-phase AC current does not flow in the power supply path to the trolley bus duct so as to stop supplying the three-phase AC current to the trolley bus duct. It has become.
As a result, no current is supplied to the trolley bus duct, and therefore, no current is supplied to the electric motors of all the large doors to which power has been supplied from the trolley bus duct. Is stopped. As described above, by shutting off the supply of the three-phase AC current to the trolley bus duct, the current supply to all the large doors is reliably shut off, so that all the large doors do not run away. Is safe. However,
Each electric motor provided on each large door is usually
It is controlled by a control circuit such as a computer provided for each large door. When the supply of current to each large door is stopped in order to stop the traveling of each large door, the power supply to the control circuit is also cut off. If the power supply to the control circuit is cut off, the failure display and the self-diagnosis function of the control circuit in each large door will not work, so all the large doors will fail due to the failure of the electric motor, control circuit, etc. There is a problem that it cannot be immediately determined whether the travel of the door has been stopped or the emergency stop has been performed by the emergency stop device. The present invention solves such a problem. In the event of an emergency stop, all doors can be reliably stopped, and even if all the doors are stopped, each door is provided. It is an object of the present invention to provide an emergency stop device for an opening / closing door in a hangar which can be operated without stopping respective control circuits. SUMMARY OF THE INVENTION The present invention is directed to a vehicle having a plurality of traveling wheels and electric motors for driving the traveling wheels, which are arranged side by side along the opening to open and close the opening of the hangar. Doors, and a trolley bus duct that is located at the upper edge of the hangar opening corresponding to the moving area of each door and supplies three-phase alternating current, and is provided on each door and is electrically connected to the trolley bus duct And a slidable current collector.Three-phase alternating current is supplied to the electric motor via the current collector, and the traveling wheels are driven via the electric motor, so that each door moves through the opening. Emergency stop switch that is operated when all doors are emergency stopped in the hangar opening and closing door, and when the emergency stop switch is operated, one of three-phase AC current in the power supply path to the trolley bus duct Means for interrupting the phase transmission line, and shutting off the one-phase transmission line, thereby stopping all the three-phase AC current transmission lines in the power supply path in each door for the electric motor and stopping the electric motor. And means. According to the present invention, when the emergency stop switch is operated, the one-phase transmission line is cut off in the three-phase alternating current power supply path to the trolley bus duct. In such a state, another two-phase alternating current is supplied to the trolley bus duct. At this time, in each door, it is detected that a one-phase transmission line to the trolley bus duct is cut off in a path supplied from the trolley bus duct to the electric motor via the current collector, and the three-phase power to the electric motor is detected. All transmission lines of the alternating current are cut off. Thereby, the driving of the electric motor is stopped. On the other hand, in such a state, the two-phase alternating current that is supplied to the trolley bus duct is supplied to each door through the current collector. The control circuit is operated without being stopped. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a schematic configuration of an opening / closing door of an aircraft hangar provided with the emergency stop device of the present invention, and FIG.
Is a plan view thereof. This opening / closing door is for opening and closing an opening provided in the front of the aircraft hangar, and has a plurality of large doors 10 arranged side by side along the opening. Each large door 10 has a width of about 12 to 16 m and a height of about 20 m, and a traveling wheel 11 and a driven wheel 12 are provided at a lower portion, respectively. At the lower edge of the opening of the hangar, three guide rails arranged inward and outward of the hangar are provided along the opening, and one set of three large doors 10 arranged side by side is provided. The traveling wheel 11 and the driven wheel 12 of each large door 10 in one set roll on each guide rail. When the large doors 10 constituting the sliding door are sequentially referred to as No. 1 door, No. 2 door,... From one side of the opening, the No. 1 door to the No. 3 door are inward. No. 4 doors to No. 6 doors are arranged in turn on each of the three guide rails arranged from the outside to the outside. I have. Hereinafter, all the large doors 10 are arranged on the respective guide rails by repeating the above. The upper edge of the opening in the hangar is shown in FIG.
As shown in FIG. 3, three trolley bus ducts 21, 22, 23 corresponding to each guide rail are provided. Each of the trolley bus ducts 21 to 23 slides in a state where the current collectors 14 provided on the respective large doors 10 moving on the corresponding guide rails are in electrical contact with each other. As shown in FIG. 1, each large door 10 is provided with an electric motor 15 for rotating and driving the traveling wheel 11, and the current collectors 14 and the current collectors provided on each large door 10 are provided. Trolley bus duct 2 to which 14 is electrically connected
A three-phase alternating current is supplied to the electric motor 15 via 1 to 23. The electric motor 15 is rotated forward and backward by the supplied alternating current. Each large door 10 is provided with a door control panel 30 for controlling the electric motor 15 provided on each large door 10. The trolley bus ducts 21 to 23 are provided with three transmission lines for transmitting current of each phase of the three-phase AC current, and the transmission lines of all the trolley bus ducts 21 to 23 are collectively It is connected to a control panel 40. The main control panel 40 controls all the large doors 10. FIG. 3 is a control circuit diagram of the aircraft storage door.
The main control panel 40 is supplied with a three-phase alternating current through a bus 50. The bus 50 has an R phase, an S phase,
Three transmission lines 50R for supplying three-phase alternating current of T phase,
50S, 50T, and each transmission line 50R, 50T.
S, 50T are divided into three so as to correspond to the respective trolley bus ducts 21 to 23, and are connected to the main control panel 40. Transmission lines 50R, 50S, 50T divided into three
Are three transmission lines 21 corresponding to the trolley bus duct 21 via the fuses 41 in the main control panel 40, respectively.
R, 21S, 21T, three transmission lines 22R, 22S, 22T corresponding to the trolley bus duct 22, and three transmission lines 23R, 23S, 2 corresponding to the trolley bus duct 23.
3T. In the main control panel 40, the trolley bus duct 2
1 between the transmission line 21R and the transmission line 21S.
A series circuit of a normally closed emergency stop switch 42 and a coil 43c of the electromagnetic relay 43 is provided. Further, a normally open contact 43a of the electromagnetic relay 43 is provided on the remaining transmission line 21T. Other trolleybus ducts 22 and 23
The transmission lines 21T and 22T in
3 normally open contacts 43a, and each transmission line 21T in all trolley bus ducts 21, 22, 23,
Each normally open contact 43a provided at 22T and 23T
Is the electromagnetic relay 4 provided on the trolley bus duct 21.
The third coil 43c is closed by being excited. Each of the trolley bus ducts 21 to 23 is electrically connected to a door control panel 30 provided on each large door 10 via the current collector 14 of each large door 10 which is electrically connected. . For example, in the door control panel 30 of the large door 10 electrically connected to the trolley bus duct 21, the transmission lines 31R, 31S, 31T are connected to the transmission lines 21R, 21S, 21T of the trolley bus duct 21, respectively. I have. A fuse 32 is interposed in each of the transmission lines 31R, 31S, 31T. Between the transmission line 31S connected to the transmission line 21S of the trolley bus duct 21 and the transmission line 31T connected to the transmission line 21T with the normally open contact 43a interposed in the main control panel 40. , The coil 33c of the electromagnetic relay 33
Is interposed. The transmission lines 2 other than the transmission line 21T provided with the normally open contact 43a in the trolley bus duct 21
Transmission lines 31S and 31R respectively connected to 1S and 21R are connected to a control circuit 35 using a microcomputer or the like, and the control circuit 35 is operated by power supply from both transmission lines 31S and 31R. ing. The control circuit 35 is connected to an alarm lamp 36 for notifying that the emergency stop switch 42 of the main control panel 40 has been operated and the large door 10 has been emergency stopped. Each transmission line 31R, 31S, 31T is connected to an inverter 34 via a normally open contact 33a of an electromagnetic relay 33 provided between the transmission lines 31S and 31T. Is provided to the electric motor 15. The other door control panels 30 have the same configuration with respect to the transmission lines 21R, 21S, 21T of the trolley bus ducts 21, 22, 23 connected via the current collectors 14. In the opening / closing door of the aircraft hangar having such a configuration, when opening / closing the opening of the hangar, an alternating current flowing from the bus 50 to the main control panel 40 causes the electromagnetic relay 43 provided on the main control panel 40 to open and close. Of the normally open contact 43a connected to the transmission lines 21T, 22T, 23T of all the trolley bus ducts 21, 22, 23 when the coil 43c is excited.
Is closed. Thus, the coils 33c of the electromagnetic relays 33 provided on the door operation panels 30 of all the large doors 10 are excited, and all the transmission lines 31R, 31 in the door operation panel 30 are excited.
The normally open contact 33a interposed between S and 31T is closed. As a result, the electric motor 1 provided on each large door 10
5, the large door 10 moves along the guide rail. As described above, when the emergency stop switch 42 provided on the main control panel 40 is operated while each large door 10 is moved, the power supply to the coil 43c of the electromagnetic relay 43 is stopped. You. As a result, the transmission lines 21T, 22T, 23T of all the trolley bus ducts 21, 22, 23
, The normally open contact 43a connected to the transmission line 21 is opened, and the transmission lines 21T, 22T, and 23T are cut off without supplying current. Thus, for example, the door operation panel 30 connected to the trolley bus duct 21 via the current collector 14
Then, no current is supplied to the transmission line 31T, and the coil 33c of the electromagnetic relay 33 is not energized.
When the energization of the coil 33c is stopped, the normally open contacts 33a interposed in all the transmission lines 31R, 31S, 31T in the door operation panel 30 are opened, and no electric current flows through the electric motor 15 at all. State. The door control panels 30 of the other large doors 10 operate in the same manner, and the driving of the electric motors 15 provided for the respective large doors 10 is stopped. Thereby, each large door 1
The movement of 0 is stopped. As described above, when the movement of all the large doors 10 is stopped, the trolley bus duct 21 between the main control panel 40 and the door operation panel 30 is in a state where only the transmission line 21T is not energized. And the other power transmission lines 21R and 21S are in the energized state. Therefore, large door 10
In the door control panel 30 of FIG.
AC power is supplied to the transmission lines 31R and 31S connected to the transmission lines 31R and 31S.
The control circuit 35 connected between S is in a power-supplied state. As a result, the control circuit 35 functions normally and turns on the alarm lamp 36 for notifying that the emergency stop switch 42 is operated and the emergency stop is performed. In each large door 10 electrically connected to the other trolley bus ducts 22 and 23, the door control panel 3
0 functions in the same way, so that the alarm lamp 36 provided on each door control panel 30 is turned on. According to the emergency stop device for an open / close door in a hangar according to the present invention, when the emergency stop switch is operated, all transmission lines of three-phase AC current to the electric motors provided on each door are controlled. In order to be in the cutoff state, the drive of the electric motor can be reliably stopped, and since the control circuit provided in each door is in the energized state,
An alarm can be issued at each door.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view schematically showing an emergency stop device for an opening / closing door in a hangar according to the present invention. FIG. 2 is a plan view schematically showing an emergency stop device for an opening / closing door in the hangar shown in FIG. 1; FIG. 3 is a control circuit diagram of an emergency stop device for an opening / closing door in the hangar of FIG. 1; [Description of Signs] 10 Large door 11 Running wheel 14 Collector 15 Electric motor 21, 22, 23 Trolley bus duct 21R, 22R, 23R Transmission lines 21S, 22S, 23S Transmission lines 21T, 22T, 23T Transmission line 30 Door control panel 33 Electromagnetic relay 36 Alarm lamp 40 Main control panel 42 Emergency stop switch 43 Electromagnetic relay

Claims (1)

(57) [Claims] [Claim 1] An opening so that an opening of a hangar can be opened and closed.
Running wheels and driving wheels
Doors with electric motors
It is arranged at the upper edge of the opening of the hangar corresponding to the range of motion,
A trolley bus duct that supplies three-phase alternating current and each door
Provided and electrically connected to the trolley bus duct.
And an electric motor through the current collector.
Three-phase AC current is supplied to the
Each door moves through the opening by driving the traveling wheels
In door hangar that, the emergency stop switch to be operated when causing an emergency stop of all doors, if emergency stop switch is actuated, feeding of one phase of the three-phase alternating current in the power supply path for the trolley bus duct means you shut off the wire, by one phase of the transmission line is shut off, the electric
Open the hangar, characterized in that and means for stopping the electric motor and shut off all the power lines of the three-phase alternating current in the power supply path in the doors for motor
Emergency stop device for closing the door .