JP5951666B2 - elevator - Google Patents

Description

  Embodiments described herein relate generally to an elevator.

  When the building where the hoistway where the elevator car moves up and down is shaken, the main rope and compen- sion rope, which are long objects, swing. In particular, when long-period vibrations occur in buildings due to earthquakes or strong winds, these ropes may swing greatly and come into contact with the hoistway itself or each device installed in the hoistway. Therefore, conventionally, when a shake of a building is detected by a sensor and a large shake is detected, if the car is moving up and down, the car is stopped at the nearest floor, the elevator is stopped, and the outside is stopped. The elevator operation was resumed by the return work by the workers.

JP 2008-184253 A JP 2012-126499 A

Meanwhile, a large shaking of the building is detected by sensor, also been carried out shutdown, these rope deflection increases, the hoistway itself, or to be in contact with each device installed in the hoistway, early It is preferable to resume operation.

  The present invention has been made in view of the above, and an elevator capable of quickly returning an elevator to an operation according to a stop floor of a car when a shake of a building in which the elevator is installed occurs. The purpose is to provide.

The elevator according to the embodiment includes a hoisting machine, a car, a counterweight, a long object, a swing detection unit, a car position detection unit, and a control unit. The car is moved up and down in the hoistway by a hoisting machine. The counterweight moves up and down in the hoistway by a hoisting machine. The long object is supported between the car or the counterweight and another support member different from the car or the counterweight, and the support length between the other support members that differ depending on the raising and lowering of the car. Changes. The shaking detection means detects shaking of the building where the hoistway is installed. The car position detecting means detects the car position with respect to the hoistway. The control means controls at least the hoisting machine. Control means, when detecting a predetermined or more shaking by rocking Re detection means, car is landed on the nearest floor to be in lifting performs shutdown of the car and landing condition, the car against the hoistway According to the stop floor of the car based on the position, an automatic operation return is performed in which the operation is automatically resumed from the operation suspension. Further, based on the support length of the elongated article in the basket of the stop floor to previously obtain the setting value for each service floor, detection time shaking of the building is the time continues to be detected to a predetermined or more shaking by rocking Re detecting means However, when the detected time exceeds the corresponding set value at the stop floor, the automatic operation return is prohibited.

FIG. 1 is a diagram illustrating a schematic configuration example of an elevator according to the embodiment. FIG. 2 is a block diagram of the elevator according to the embodiment. FIG. 3 is a diagram illustrating an operation flow of the elevator according to the embodiment.

  Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, the following embodiment is an illustration and the range of invention is not limited to them. In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art or those that are substantially the same.

  FIG. 1 is a diagram illustrating a schematic configuration example of an elevator according to the embodiment. FIG. 2 is a block diagram of the elevator according to the present embodiment. The elevator 1 includes a car 2, a main rope 3, a hoisting machine 4, a deflecting sheave 5, a counterweight 6, a compen- sion rope 7, a compensatory 8, a governor 9, and a governor. The vehicle 10 includes a governor rope 11, a sensor 12, a car position sensor 13, and an elevator control panel 14. In the present embodiment, the car 2, the counterweight 6, the compensation rope 7, the compensation sheave 8, and the governor tensioner 10 are arranged in the hoistway 15. Further, the hoisting machine 4, the deflecting sheave 5, the speed governor 9, the sensor 12, the car position sensor 13, and the elevator control panel 14 are disposed in the machine room 16. In addition, although this embodiment demonstrates the elevator 1 with which the machine room 16 is arrange | positioned at the upper part of the hoistway 15, the elevator 1 without the machine room 16 may be sufficient.

  The car 2 is for passengers to get on and off. The car 2 is disposed between a pair of car guide rails (not shown), and moves up and down along the car guide rails to move up and down in the hoistway 15.

  The main rope 3 is a long object and connects the car 2 and the counterweight 6. In the present embodiment, one end of the main rope 3 is connected to the upper part of the car 2, and the other end is connected to the upper end of the counterweight 6, and the main rope 3 is connected to the hoisting machine 4 and the deflecting sheave 5. It is wrapped around.

Hoisting machine 4, winding the outcomes Inropu 3 to rotate, in which lifting in the hoistway 15 the car 2 and the counterweight 6 which is connected to the main rope 3 to Tsurube expression. The hoisting machine 4 winds up the main rope 3 by the hoisting pulley 42 rotating by the driving force of the motor 41. The hoisting machine 4 is electrically connected to the elevator control panel 14, and drive control is performed by electric power supplied via the elevator control panel 14.

  The deflecting sheave 5 adjusts the fishing width when the main rope 3 is connected to the car 2 and the counterweight 6. The deflecting sheave 5 is set near the hoisting machine 4 in the machine room 16. The main rope 3 located between the hoisting machine 4 and the counterweight 6 is wound around the deflecting sheave 5 in this embodiment.

The counterweight 6 moves up and down in the hoistway 15 in conjunction with the raising and lowering of the car 2, and causes an unbalance between the car 2 and the hoisting machine 4. The counterweight 6 is disposed between weight guide rails (not shown) and moves up and down along the weight guide rails.

  The compensation rope 7 is suspended from the car 2 and the counterweight 6. The compen- sion rope 7 has one end connected to the car 2 and the other end connected to the counterweight 6. In the present embodiment, the compen- sion rope 7 has one end fixed to the lower part in the vertical direction of the car 2 and the other end fixed to the lower part in the vertical direction of the counterweight 6.

  The compensation sheave 8 is disposed in a pit P provided in the lower part of the hoistway 15 and is wound around the compensation rope 7. The compensation sheave 8 prevents the compensation rope 7 from swinging in the horizontal direction while the car 2 is raised and lowered. The compensatory 8 is rotatably supported in the pit P.

  Here, the long objects in the present embodiment are the main rope 3 and the compensation rope 7. The main rope 3 is supported between the car 2 and a hoisting pulley 42 which is another support member different from the car 2, and the support length between the car 2 and the hoisting pulley 42 according to the raising and lowering of the car 2. Changes. Further, the main rope 3 is supported between the counterweight 6 and the hoisting pulley 42, and the support length between the counterweight 6 and the hoisting pulley 42 is increased as the counterweight 6 moves up and down. Change. The compen- sion rope 7 is supported between the car 2 and the compensatory 8 which is another different support member, and the support length between the car 2 and the compensatory 8 changes as the car 2 moves up and down. To do. Further, the compen- sion rope 7 is supported between the counterweight 6 and the compensator 8, and the support length between the counterweight 6 and the compensator 8 changes as the counterweight 6 moves up and down. .

The governor 9 is wound around a loop-shaped governor rope 11, and stops rotating when the speed of the governor rope 11 that moves up and down with the car 2 exceeds a predetermined speed. When the rotation of the speed governor 9 is stopped, the relative movement is generated between the car 2 Doo governor rope 11, the safety device 21 is actuated provided on the car 2 by relative speed of the car 2 elevator Is stopped.

  The governor-tensioned vehicle 10 is disposed in a pit P provided in the lower part of the hoistway 15 and is wound around a loop-shaped governor rope 11. The governor tension wheel 10 generates tension of the governor rope 11.

  The sensor 12 is a shake detection means, and detects the shake of a long object by detecting the shake of the building 100 in which the hoistway 15 is installed. In this embodiment, the sensor 12 is an acceleration sensor, and outputs, as the building 100, for example, a shake of a high-rise building as an electrical signal based on acceleration. The sensor 12 is provided in a predetermined portion of the building 100 that is separated from the ground in the vertical direction, in the machine room 16 in the present embodiment. This is because when the building 100 shakes, the building 100 shakes around the ground as a fulcrum. The sensor 12 is electrically connected to the elevator control panel 14 and an acceleration signal based on the detected acceleration is input to the elevator control panel 14.

  The car position sensor 13 is car position detecting means for detecting a car position that is the position of the car with respect to the hoistway 15. In this embodiment, the car position sensor 13 is a pulse sensor and is attached to the speed governor 9. The car position sensor 13 detects the position of the car 2 relative to the hoistway 15 by detecting the number of rotations of the speed governor 9 as a pulse because the speed governor 9 rotates according to the raising and lowering of the car 2. The car position sensor 13 is electrically connected to the elevator control panel 14, and a pulse signal is input to the elevator control panel 14.

Elevator control panel 14 is a control unit, which drives and controls at least the hoisting machine 4, in the present embodiment, the motor control unit 141, the main microcomputer 142 is configured to include a signal input unit 143 ing.

  The motor control unit 141 controls the motor 41 of the hoisting machine 4. The motor control unit 141 controls the motor 41 to a state such as forward rotation, reverse rotation, and stop based on a command signal from the main microcomputer 142, and puts the car 2 into a state such as up, down, and stop. .

  The main microcomputer 142 controls the operating state of the elevator 1. The main microcomputer 142 is input to the signal input unit 143 and is based on an operation signal output when a passenger operates an operation panel (not shown) provided at the landing 20 on each floor or an operation panel provided in the car 2. Then, the car 2 is moved up and down to the target floor by outputting a command signal to the motor control unit 141 and driving and controlling the hoisting machine 4. Further, the main microcomputer 142 in the present embodiment determines that the car 2 is moving up and down when the swing of the building 100 is a predetermined swing or higher, that is, “high”, based on the acceleration signal. It has the nearest floor landing function for landing 2. The main microcomputer 142 has a door opening operation function for performing a door opening operation that opens a door (not shown) that closes the car 2 and the landing 20 when the shaking of the building 100 is “high”. . The main microcomputer 142 has an operation stop function for prohibiting the raising and lowering of the car 2 that has landed and opened the door based on the operation signal when the shaking of the building 100 is the “high”. Further, in the present embodiment, the main microcomputer 142 detects the shaking detection time after the stop floor of the car 2 is not the resonance floor and the shaking of the building 100 becomes “high” in the present embodiment. It has the automatic driving | operation return function which permits raising / lowering the car 2 which is automatically landing and the door open state based on an operation signal as it is below. In addition, the main microcomputer 142 sets the set value for the shaking detection time after the stoppage of the car 2 is the resonance floor or the shaking of the building 100 becomes “high” in the present embodiment from the operation stop state. If it exceeds, the automatic operation return function is prohibited, and the return operation by an external worker, that is, the manual operation return that permits the car 2 to be raised and lowered manually based on the operation signal. It has a function.

  Here, the set values are the main rope 3 between the car 2 and the hoisting pulley 42, the main rope 3 between the counterweight 6 and the hoisting pulley 42, and the car on each floor where the car 2 can stop. 2 and the compen- sation rope 7 between the governor tensioner 10 and the compen- sation rope 7 between the counterweight 6 and the governor tensioner 10 are within the hoistway 15 or the hoistway 15. This is the detection time that does not cause shaking that comes into contact with each device. In the present embodiment, whether or not the automatic operation return is performed is determined based on whether or not the stop floor is the resonance floor. Therefore, in the present embodiment, the set value is set to stop the car 2 excluding the resonance floor. It will be set corresponding to each possible floor.

  Here, the resonance floor refers to a floor where the stop floor of the car 2 causes resonance in the long object based on the support length of the long object on the stop floor of the car 2. The resonance floor in this embodiment is the main rope 3 between the car 2 and the hoisting pulley 42 at the stop floor, the main rope 3 between the counterweight 6 and the hoisting pulley 42, and the car 2 at the stop floor. At least one of the compen- sion rope 7 between the governor tension vehicle 10 and the compen- sation weight 6 on the stop floor and the compen- sion rope 7 between the governor tension vehicle 10 resonates with the shaking of the building 100. This is the floor that gives a big swing. There are elevators 1 in which resonance does not occur in a long object even when the car 2 stops on each floor where the car 2 can stop. In such an elevator 1, the resonance floor does not have to be set in the elevator control panel 14.

The resonance floor and the set value are set in advance based on the structure of the building 100 where the elevator 1 is installed in advance, the height of the building 100, the width of the hoistway 15, the height of the hoistway 15, and the like. It is stored in a storage unit (not shown) of the elevator control panel 14. Further, the main microcomputer 142 has a counter (not shown) and can measure time. The position of the car 2 with respect to the hoistway 15 corresponding to each floor on which the car 2 can land is stored in advance. Therefore, the main microcomputer 142 can acquire the stop floor of the car 2 based on the position of the car 2 with respect to the hoistway 15 detected by the car position sensor 13.

  The signal input unit 143 is for receiving signals from various sensors of the elevator 1 and the operation signals. The signal input unit in this embodiment receives an acceleration signal from the sensor 12 and a pulse signal from the car position sensor 13.

  Next, the operation of the elevator 1 according to the present embodiment, particularly from the stoppage of operation when a shake occurs to the return of operation will be described. FIG. 3 is a diagram illustrating an operation flow of the elevator according to the embodiment.

  First, as shown in FIG. 3, the main microcomputer 142 determines whether or not the shaking of the building 100 detected by the sensor 12 is equal to or higher than a predetermined shaking, that is, “high” (step ST1). Here, the main microcomputer 142 determines whether the shaking of the building 100 is so high that there is a possibility that a long object may come into contact with the hoistway 15 or each device in the hoistway 15.

  Next, when the main microcomputer 142 determines that the shaking of the building 100 is greater than or equal to the predetermined shaking (step ST1: Yes), the main microcomputer 142 continues to detect that the shaking of the building 100 is greater than or equal to the predetermined shaking, that is, measurement of the detection time. Is started (step ST2). If it is determined that the shaking of the building 100 is less than the predetermined shaking (step ST1: No), step ST1 is repeated until the shaking of the building 100 becomes equal to or more than the predetermined shaking. In addition, when the shaking of the building 100 is less than the predetermined shaking, the main microcomputer 142 may set the operation of the elevator 1 to an operation state different from the normal operation as compared with the case where the shaking of the building 100 is not detected.

  Next, the main microcomputer 142 determines whether or not the car 2 is moving up and down (step ST3).

  Next, when the main microcomputer 142 determines that the car 2 is moving up and down (step ST3: Yes), the car 2 is landed on the nearest floor (step ST4). That is, the stop floor of the car 2 is the nearest floor when the car 2 is moving up and down. If it is determined that the car 2 is not moving up and down (step ST3: No), since the car 2 is currently stopped, that floor becomes the stop floor.

  Next, the main microcomputer 142 acquires the car position (step ST5).

  Next, the main microcomputer 142 performs a door opening operation (step ST6). Thereby, the passenger in the car 2 can move to the landing 20 on the nearest floor or the floor that has already stopped.

  Next, the main microcomputer 142 stops the operation of the elevator 1 (step ST7).

  Next, the main microcomputer 142 determines whether or not the stop floor of the car 2 is a resonance floor (step ST8). Here, the main microcomputer 142 determines whether or not the stop floor of the car 2 is a floor where at least one of the main rope 3 and the compen rope 7 resonates and swings due to the shaking of the building.

  Next, when the main microcomputer 142 determines that the stop floor of the car 2 is not the resonance floor (step ST8: No), the main microcomputer 142 determines whether or not the detection time is equal to or less than the set value (step ST9). Here, the main microcomputer 142 keeps the shaking of the building 100 over a predetermined shaking, so that at least one of the main rope 3 or the compen- sion rope 7 comes into contact with the hoistway 15 or each device in the hoistway 15. It is determined whether or not the vibration is a shake.

  Next, when the main microcomputer 142 determines that the detection time is less than or equal to the set value (step ST9: Yes), the main microcomputer 142 determines whether or not the shaking of the building 100 detected by the sensor 12 is “high”. (Step ST10). Here, the main microcomputer 142 determines whether or not the building 100 continues to shake more than a predetermined amount.

Next, when the main microcomputer 142 determines that the shaking of the building 100 detected by the sensor 12 is not “high” (step ST10: No ), the main microcomputer 142 performs an automatic operation return of the elevator 1 (step ST11). Here, in the main microcomputer 142, the stop floor of the car 2 is not the resonance floor, and the shaking of the building 100 over a predetermined shaking continues, that is, at least one of the main rope 3 and the compen- sion rope 7 is a hoistway. 15 or the operation of the elevator 1 is automatically restored when there is no vibration that causes the vibration to come into contact with each device in the hoistway 15. If the main microcomputer 142 determines that the shaking of the building 100 detected by the sensor 12 is “high” (step ST10: Yes ), the main microcomputer 142 repeats the steps after step ST7.

  If it is determined that the stop floor of the car 2 is the resonance floor (step ST8: Yes), or if it is determined that the detection time exceeds the set value (step ST9: No), the operation manual return of the elevator 1 is performed. (Step ST12). Here, when the stop floor of the car 2 is a resonance floor, or when the detection time exceeds the set value based on the stop floor of the car 2, that is, at least either the main rope 3 or the compen- sion rope 7 is used. In the case where there is a swing that causes the swing to come into contact with the hoistway 15 or each device in the hoistway 15, the automatic return of the elevator 1 is prohibited.

As described above, in the elevator 1 according to the present embodiment, when the sensor 12 detects a predetermined or larger swing, the car 2 is landed on the nearest floor when the car 2 is moving up and down, and the car 2 is placed in the grounded state. When the detection time is less than or equal to the set value corresponding to the stop floor of the car 2, the automatic operation return is performed, and when the detection time exceeds the set value , the automatic operation return is prohibited. Therefore, when a long-period vibration is detected, the magnitude of the shake is estimated based on the detection time, and when either the main rope 3 or the compen- sion rope 7 whose support length changes depending on the stop floor is small When the automatic return of operation is performed and the swing of either the main rope 3 or the compen- sion rope 7 whose support length changes according to the stop floor is large and contacts the hoistway 15 or each device in the hoistway 15, the operation automatic return prohibit, the operation resumed in the operation manual reset. Thereby, since the elevator 1 which does not generate | occur | produce a damage can be returned automatically, the situation where a passenger cannot use the elevator 1 for a long time can be avoided, and a passenger's convenience improves. Further, when the elevator 1 of a plurality are installed in the same building 100, since the stop floor car 2 of the elevator 1 during outages are different, the deflection of the main rope 3, or the compensating ropes 7 are different, the elevator 1 Depending on the situation, there is a case where the automatic operation return is possible. In this case, the number of the elevators 1 that must be manually restarted by an external worker can be reduced by performing the automatic operation return of the elevator 1. Therefore, all elevators 1 in the building 100 can be restarted at an early stage.

Further, in the elevator 1 according to the present embodiment, when the sensor 12 detects a predetermined swing or more, if the car 2 is moving up and down, the car 2 is landed on the nearest floor and the car 2 is placed in the grounded state. A stop is performed and automatic operation return is performed when the stop floor of the car 2 is not the resonance floor, and automatic operation return is prohibited when the stop floor of the car 2 is the resonance floor. Therefore, if the stop floor is a resonance floor, the main rope 3 or the compen- sion rope 7 whose support length changes according to the stop floor swings greatly even if the detection time is less than the set value, and the elevator 1 may be damaged. Therefore, by prohibiting the automatic operation return, an external worker can confirm damage and restart the operation of the elevator 1 safely.

  In the present embodiment, the long object is the main rope 3 and the compen- sion rope 7. However, some elevators 1 do not have the compen- sion rope 7, so that only the main rope 3 is used as the long object. Also good.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

1 elevator, 2 cars, 3 main ropes, 4 hoisting machines, 5 deflecting sheaves, 6
Counterweight, 7 Compensation rope, 8 Compensation, 9 Speed governor, 10 Speed governor tension car, 11 Speed governor rope, 12 Sensor, 13 Car position sensor 13, 14 Elevator control panel, 15 Hoistway, 16 machine room

Claims (3)

A hoisting machine, a car moving up and down in the hoistway by the hoisting machine, a counterweight moving up and down in the hoistway by the hoisting machine, the car or the counterweight, and the car or the fishing The hoistway is installed with a long object that is supported between the weight and another support member different from the weight, and the support length varies between the car and another support member according to the raising and lowering of the car. Sway detecting means for detecting the swaying of the building, cab position detecting means for detecting the car position relative to the hoistway, and control means for controlling at least the hoisting machine, wherein the control means comprises the sway. And when the car detects a predetermined or greater amount of shaking, the car is landed on the nearest floor when the car is moving up and down, and the car is placed in a grounded state to stop operation, and the car position relative to the hoistway On the stop floor of the car based on Next, performing an automatic operation return that automatically resumes operation from the operation stop, obtaining a set value for each stop floor based on the support length of the long object on the stop floor of the car, wherein when the detection time shaking of the building is the time continues to be detected to a predetermined or more shaking by rocking Re detection means is less than or equal to the set value corresponding at the stop floor, performs the operation automatic return, the detection The elevator that prohibits the automatic operation return when the time exceeds the corresponding set value at the stop floor. 2. The elevator according to claim 1 , wherein the control unit is not a resonance floor in which resonance occurs in the long object based on the support length of the long object on the stop floor of the car. An elevator that performs the automatic operation return and prohibits the automatic operation return when the resonance level is reached. 3. The elevator according to claim 1, wherein the long object is wound around the hoist and connected to a main rope that raises and lowers the car and the counterweight in a fishing bottle type, or the car and the counterweight. An elevator that is at least one of the compensated ropes.

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