JP6667659B2 - Elevator device and scale device calibration method - Google Patents

Description

  The present invention relates to an elevator apparatus provided with a weighing device capable of easily performing calibration, and a method of calibrating the weighing device.

  A general elevator device is provided with a weighing device for detecting a loaded state in a car. As a configuration of the weighing device, there is a method of detecting a loaded state based on a rope tension that changes according to a weight in a car. An important function of the weighing device is to detect the loading state during the service operation of the elevator and prevent the car from being lowered due to excessive riding.

  As described above, in order to reliably prevent an event in which the car is lowered due to overloading, the weighing device needs to be calibrated so as to ensure accuracy. As such a calibration method, there is a conventional technique in which a car is pulled up in a state where a pit and a car are connected by a chain and a weighing device is calibrated based on a change in a load state applied to the connected chain (for example, Patent Document 1).

JP 2007-168938 A

  The conventional technique according to Patent Literature 1 requires an operation of connecting a connection chain and preparation of an adjustment load cell. For this reason, there is a problem that the calibration work takes time. Further, the related art disclosed in Patent Document 1 requires an additional structure of a pit floor surface that can withstand a load pulled up by a connecting chain.

  The present invention has been made in order to solve the above-described problems, and an object thereof is to obtain an elevator apparatus and a calibration method of a weighing apparatus that can facilitate the calibration work of the weighing apparatus more than before. I do.

The elevator device according to the present invention is a hoist, a sheave driven by the hoist, a rope wound around the sheave, and one of the ropes, with the part wound around the sheave as a boundary. Based on the basket suspended on the rope, the balancing weight suspended on one side of the rope, and the counterweight suspended on the opposite side of the rope, and the tension load on the rope. A weighing device that detects the weight of the car and outputs it as a weighing value, and a controller that detects the loading state of the car based on the weighing value output from the weighing device, wherein the weighing device is based on the weighing value when the car is in a non-loaded state. As both the case where the car weight increases and the case where the car weight becomes lower than the non-loaded state, the output of the weighing value has a structure having a linear characteristic with respect to the change in the load ratio, and the case where the rope tension is increased. A place to be weakened Both states are those detected using the same calibration values.

Further, in the calibration method of the weighing device performed in the elevator device according to the present invention, the controller controls the car in a non-loaded state to be held stationary according to the calibration command, and then hoists the car in the stationary holding state. The output value of the machine torque is set to a value corresponding to the first loading load ratio, and the first weighing value corresponding to the first loading load ratio is obtained from the weighing device, whereby the first loading load ratio and the first loading load ratio are obtained. A first step of generating first calibration data composed of a weighing value and a first state in which the car cannot be mechanically lowered, and after adding a constant load hoisting machine torque for a predetermined time; When the first state is maintained, the constant-load hoisting machine torque is set to a value corresponding to the second loading load ratio, and a second weighing value corresponding to the second loading load ratio is obtained from the weighing device. Thus, the second loading load ratio and the second weighing value A second step of generating a second calibration data, and has a third step of calibrating the linear characteristic from the first calibration data and the second calibration data.

  According to the present invention, a weighing device that detects a car weight based on a tension load on a rope and can detect both a case where the rope tension is increased and a case where the rope tension is decreased using the same calibration value It has. Furthermore, by using a weighing device having such a calibration, for example, the hoist is rotated to the lower side of the car in a state where the car does not descend, thereby lowering the rope tension, and the hoist at that time. Can be calibrated based on the torque value of. As a result, it is possible to obtain an elevator apparatus and a calibration method for a weighing device, which can make the calibration work of the weighing device easier than before.

FIG. 1 is a configuration diagram of an elevator apparatus according to Embodiment 1 of the present invention. FIG. 5 is a diagram illustrating a relationship between a weighed value and a load ratio when the weighing device is calibrated with a positive load in the elevator device according to Embodiment 1 of the present invention. It is a figure showing the example of composition of the weighing device concerning Embodiment 1 of the present invention. It is a block diagram of the elevator apparatus which concerns on Embodiment 2 of this invention. 9 is a flowchart showing a specific procedure for calibrating the weighing device based on the output value of the hoisting machine torque in the elevator device according to Embodiment 2 of the present invention. FIG. 13 is a diagram showing a relationship between a weighed value and a load ratio at the time of calibration of a weighing device with a load weight in the elevator device according to Embodiment 2 of the present invention. FIG. 8 is an explanatory diagram showing a principle of calibrating a hoisting machine torque output value according to Embodiment 2 of the present invention, and a diagram showing a speed pattern. It is explanatory drawing which showed the calibration principle of the hoisting machine torque output value which concerns on Embodiment 2 of this invention, and is the figure which showed the time change pattern of the hoisting machine torque corresponding to the speed pattern of FIG. 7A. FIG. 8 is an explanatory diagram illustrating a principle of calibrating a torque output value of a hoist according to Embodiment 2 of the present invention, and is a diagram illustrating a relationship between a torque output and a driving load. It is the flowchart which showed the calibration procedure of the hoisting machine torque output value which concerns on Embodiment 2 of this invention. FIG. 9 is a configuration diagram of an elevator apparatus according to Embodiment 3 of the present invention. It is a flow chart which showed a series of processings of safety check performed by a safety checker concerning Embodiment 3 of the present invention.

  Hereinafter, preferred embodiments of a method for calibrating an elevator apparatus and a weighing apparatus according to the present invention will be described with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of an elevator apparatus according to Embodiment 1 of the present invention. A rope 3 for hanging the car 1 and the counterweight 2 is wound around a drive sheave 4.

  The elevator control device 20 includes a controller 21 and a weighing processor 22. The controller 21 controls the hoist 5 to rotate the drive sheave 4 synchronized with the hoist 5. As a result, the controller 21 causes the car 1 connected to the rope 3 and the counterweight 2 to travel up and down inside the hoistway.

  When detecting that the speed of the car 1 operating in conjunction with the counterweight 2 has become equal to or higher than a predetermined value, the speed governor 6 outputs a command signal for activating the safety gear 7. In accordance with a command signal from the governor 6, the emergency stop device 7 grips the rail 8 and mechanically prevents the car 1 from descending.

  The weighing device 9 is a device that detects the load weight in the car. As described above, the weighing device 9 needs to calibrate the output value in correspondence with the actual load in order to maintain the detection accuracy. In the first embodiment, the weighing processor 22 is provided in the elevator control device 20. The weighing processor 22 calibrates the weighing device 9 by externally inputting a calibration command value.

  The hoist rotation detector 11 is a sensor that outputs a signal for detecting a rotation angle of the hoist 5. The detected signal is used by the controller 21 in the elevator control device 20 for controlling the elevator.

  Next, the weighing device 9 in the elevator device according to the first embodiment and the calibration method thereof will be described. FIG. 2 is a diagram showing a relationship between a weighed value and a load ratio at the time of calibration of the weighing device with a positive load in the elevator device according to Embodiment 1 of the present invention.

  Here, the loading rate is a value that is 0% when there is nothing on the car and 100% when a heavy object with a rated load is on the car. The weighing device 9 according to the first embodiment has a relationship in which the output of the weighing value is linear with respect to a change in the load ratio, that is, a relationship in which both are proportional.

  Therefore, there are two states: a state in which nothing is placed on the car (that is, a state corresponding to a loading load rate of 0%) and a state in which a calibration weight is placed (for example, a state corresponding to a loading load rate of 10%). , It is possible to accurately detect not only the positive load ratio but also the negative load ratio.

  By using such a relationship, more specifically, by providing a load factor for determining the looseness of the rope as a reference, the looseness of the rope can be accurately detected from the measurement result of the weighed value.

  FIG. 3 is a diagram illustrating a configuration example of the weighing device 9 according to Embodiment 1 of the present invention. The weighing device 9 according to the first embodiment is provided between the rope 3 and the car 1 and includes a displacement detector 91, a linear compression spring 92, a rod 93, and a fixed plate 94.

  As the loaded weight of the car increases, the linear compression spring 92 is compressed. By detecting the change in compression by the displacement detector 91, a change in load on the rope can be detected. As shown in FIG. 3, when the number of the ropes 3 is three, the change in the loaded state can be detected by the total load change of each rope 3 detected by the three displacement detectors 91.

  Further, the weighing device having such a configuration can determine, from the state where no car is placed thereon, the state in which the rope is further loosened within a range where the spring changes linearly. Therefore, the weighing device according to the first embodiment can detect the direction in which the rope tension decreases with high accuracy. In other words, the weighing device according to the first embodiment can be applied to a function of detecting a state where the rope tension is loose.

  As described above, according to the elevator apparatus according to Embodiment 1, the car weight is detected based on the tension load of the rope, and the car weight is increased and decreased in both the case where the car weight is increased and the case where the car weight is reduced compared to the non-loaded state. On the other hand, a configuration is provided in which the same calibration value can be used. As a result, the looseness of the rope tension can be detected with high accuracy by using a weighing device calibrated by placing weights in the car.

  More specifically, the elevator apparatus according to Embodiment 1 lowers the rope tension by, for example, rotating the hoisting machine to the car descent side in a state where the car does not descend, and the hoisting machine at that time Can be calibrated based on the torque value of. As a result, compared with the prior art, the work for connecting the connecting chains and the preparation of the adjustment load cell are not required, and the weighing device can be calibrated more efficiently.

  Further, the structure of the pit floor surface that can withstand the chain load becomes unnecessary, and the weighing device can be easily and accurately calibrated with the general elevator configuration.

  Further, the elevator apparatus according to the first embodiment has a configuration in which the weighing apparatus is directly calibrated based on a state where the rope tension is weakened. For this reason, higher accuracy can be guaranteed in the direction in which the rope tension decreases. For example, this calibration principle can be used for a looseness detection function of the rope tension.

  Thereby, the case where the load applied to the car has decreased due to the drop of the car equipment or the hanging rope for weight adjustment, etc., can be detected by the output of the weighing device having decreased to less than 0% load.

Embodiment 2 FIG.
FIG. 4 is a configuration diagram of an elevator apparatus according to Embodiment 2 of the present invention. In the configuration of the first embodiment shown in FIG. 1, the balance calibration command of the elevator control device 20 is input from the outside. On the other hand, the configuration of the fourth embodiment shown in FIG. 4 is configured to input a balance calibration command from the controller 21 to the balance processor 22. Thus, the elevator apparatus according to the second embodiment can directly calibrate the weighing processor 22 based on a command from the controller 21.

  Next, the weighing device 9 in the elevator device according to the second embodiment will be described in detail. Similar to the first embodiment, the weighing device 9 according to the second embodiment also has a relationship in which the output of the weighing value is linear with respect to the change in the load ratio, that is, a relationship in which both are proportional. Therefore, if there are weighed values in two loaded states, the output of the weighing device 9 can be calibrated.

  In particular, according to the second embodiment, the configuration is such that the output value of the hoisting machine torque can be directly input from the controller 21 to the weighing processor 22. For this reason, the weighing device 9 can be calibrated based on the output value of the hoisting machine torque without changing the actual car loading weight using the weight.

  FIG. 5 is a flowchart showing a specific procedure for calibrating weighing device 9 based on the output value of the hoisting machine torque in the elevator device according to Embodiment 2 of the present invention. First, after it is confirmed that the inside of the car 1 is in an unmanned state, a calibration operation is started.

  Next, in step S501, the controller 21 executes the hoist holding control. That is, the controller 21 controls the hoist 5 so that the car 1 is held stationary. The output value of the hoisting machine torque at this time corresponds to the weight difference between the car 1 and the weight 2 in the 0% load state.

  Next, in step S502, the controller 21 outputs the output value of the hoisting machine torque corresponding to the weight difference between the car 1 and the weight 2 in the 0% load state, and the weighing device which is the output value of the weighing device 9 in this state. The value is stored in the weighing processor 22 as calibration data 1.

  Next, in step S503, the controller 21 causes the car 1 to operate the safety device. Further, in step S504, the controller 21 outputs a constant load hoist torque in the direction in which the car 1 descends while the safety gear is operated.

  Next, in step S505, the controller 21 determines whether or not the state of outputting the constant-load hoisting machine torque is maintained for a predetermined time. Then, when the state of outputting the constant load hoist torque is maintained for the predetermined time, the controller 21 determines that the car has not been lowered, and proceeds to step S506.

  In addition, the controller 21 further confirms in step S505 that the hoisting machine 5 is not rotating by the hoisting machine rotation detector, thereby assuring that the car has not descended more reliably. can do.

  When the car 1 is not lowered, the tension of the rope 3 connecting the drive sheave 4 to the car 1 is lower than the state of 0% load. Therefore, in this state, the emergency stop device bears a weight corresponding to the amount of decrease in the tension.

  Therefore, if the controller 21 can confirm that the car is not lowered, in step S506, the controller 21 compares the output value of the hoisting machine torque in that state and the weighing value that is the output value of the weighing device 9 with the car. , And stored in the weighing processor 22 as calibration data 2.

  On the other hand, if it is determined in step S505 that the hoist is rotating or the torque output is not stable at a constant value, the process proceeds to step S508, and the controller 21 determines that this process is an error. Then, the series of processing ends.

  After the learning of the calibration data 2 is completed in step S506, the process proceeds to step S507, and the weighing processor 22 performs a calibration process of the weighing value. The weighing processor 22 uses the calibration data 1 and the calibration data 2 in executing the calibration process.

  FIG. 6 is a diagram showing the relationship between the weighed value and the load ratio at the time of calibrating the weighing device with the load weight in the elevator device according to the second embodiment of the present invention. The relationship between points is shown. In the case of FIG. 6, for example, it is assumed that the output value of the hoisting machine torque in the calibration data 2 corresponds to -10% in terms of the loaded weight.

  The weighing processor 22 performs the calibration process by linearly interpolating the calibration data 1 and the calibration data 2 as shown in FIG. By this processing, the weighing processor 22 can acquire “the rate of change of the weighing value with respect to the change in the loading weight” and “the origin of the weighing value (the weighing value corresponding to the absence of the loading weight)” as the calibration parameters.

  If there are these parameters, the weighing processor 22 can accurately detect the loading weight state by calculating the loading weight change corresponding to the weighing output change from that value based on the origin of the weighing value. . The series of processing ends with the processing in step S507.

  In the above processing, a weighing value corresponding to a loaded weight of less than 0% Load (hereinafter, this state is referred to as a negative value) that is not used in a normal weighing device is used. Accordingly, the elevator apparatus according to the first embodiment creates a state in which the external load fluctuation corresponding to the loaded weight is given to the weighing apparatus 9 without placing the weight 2 thereon, and acquires and uses the calibration data. Calibration of the weighing device 9 can be performed.

  In particular, as in the weighing device according to the first embodiment, when the rope tension and the weighing value have linear characteristics for both positive and negative values across 0% load, calibration using a negative value is performed. Even when the method is adopted, the weighing device 9 can be maintained with high accuracy without reducing the accuracy of the weighing device 9.

  Further, in a configuration in which the change in the loaded weight corresponds to the fluctuation in the rope tension as in the weighing device 9 according to the first embodiment, the tension of the rope 3 is obtained by using the result of the minus load output of the weighed value. A drop can be detected.

  As described above, in the case where the negative load output value is used, the weighing device 9 is directly calibrated by using the weighed value corresponding to the reduced state of the rope tension. For this reason, the weighing device according to the ninth embodiment can be used as a device that detects a drop in rope tension during calibration, and higher reliability can be secured.

  Here, in order to further improve the calibration accuracy of the weighing value, a measure to improve the accuracy of the torque output itself of the hoist serving as the calibration source data can be considered. Specifically, the accuracy can be improved by calibrating the change in the torque of the hoist during traveling in correspondence with the physical phenomenon.

  7A to 7C are explanatory diagrams showing the principle of calibrating the torque output value of the hoist according to Embodiment 2 of the present invention. FIG. 7A shows a speed pattern, and FIG. 7B shows a time change pattern of the hoisting machine torque corresponding to the speed pattern of FIG. 7A.

  The hoisting machine torque at this time is a tension difference value which is a difference between the tension value of the rope 3 on the side where the car 1 is connected and the tension value of the rope 3 on the side where the counterweight 2 is connected. Applicable. Since the driving load changes at the time of acceleration / deceleration during traveling, as shown in FIG. 7B, the hoisting machine torque also fluctuates to T1, T2, and T3 according to the fluctuation of the driving load.

FIG. 7C shows the relationship between the torque output and the driving load. Theoretically, the torque output and the driving load have linear characteristics as shown in FIG. 7C. In FIG. 7C, the hoisting machine torques T1, T2, and T3 correspond to the magnitudes of the driving loads T1 ', T2', and T3 ', respectively. Each drive load can be determined by the following relationship, where G is the gravitational acceleration.
T1 '= (balance weight-car weight) × G + (balance weight + car weight) × acceleration T2 ′ = (balance weight-car weight) × G
T3 '= (balance weight-car weight) × G- (balance weight + car weight) × acceleration

  From the above relationship, it is possible to specify the driving load during traveling, and therefore, it is possible to achieve high accuracy by calibrating the torque output so as to have a linear characteristic according to the magnitude.

  FIG. 8 is a flowchart showing a procedure for calibrating the torque output value of the hoist according to Embodiment 2 of the present invention. Specifically, FIG. 8 shows a procedure for acquiring the torque output values T1, T2, and T3 and calibrating the torque output values.

  First, after it is confirmed that the inside of the car 1 is unmanned, the controller 21 starts running the car 1 in step S801. Subsequent procedures correspond to the traveling pattern of FIG. 7A.

  First, in step S802 and step S803, the controller 21 acquires the torque output T1 during constant acceleration after the start of traveling. Thereafter, similarly, the controller 21 acquires the torque output T2 during the constant speed traveling in steps S804 and S805, and acquires the torque output T3 during the constant acceleration in steps S806 and S807.

  Then, in step S808, the controller 21 calibrates the hoisting machine torque output by using the correspondence between the torque output value and the driving load, as described with reference to FIG. 7C, and completes the series of processes.

  As described above, according to the elevator apparatus according to Embodiment 2, the output value of the weighing device can be calibrated based on the torque output value. Specifically, the apparatus is provided with a calibration capable of lowering the rope tension by the hoist in a state where the emergency stop is hung and calibrating the weighing device based on the torque output of the hoist at that time. As a result, the weighing device can be configured without placing weights in the car. In particular, since the drop in the rope tension can be directly calibrated, high accuracy can be guaranteed even for the function of detecting the drop in the rope tension.

Embodiment 3 FIG.
As described above, with the configuration of the elevator apparatus according to the present invention, it is possible to quantitatively detect that the rope tension has decreased, compared to a state where the loading weight is 0% load. Therefore, in the third embodiment, a technique will be described in which the function of detecting the drop in the rope tension is applied to the operation inspection of the safety device.

  The emergency stop device is required to be installed in an elevator, and is a safety device that cannot hold the car 1 by the rope 3 and brakes and holds the car 1 when the car 1 descends at an excessively high speed. Therefore, the safety devices require periodic inspections of their operational functions to ensure that they are properly mounted on the elevator as a safety device and function reliably.

  In the periodic inspection, it is confirmed that the car 1 cannot be lowered while the safety gear is engaged. As a specific method, the hoisting machine torque is output from the hoisting machine 5 in the rotation direction in which the car 1 descends in a state where the safety gear is engaged. Then, in this output state, it is confirmed that "the rope 3 slides in the sheave groove of the hoisting machine 5" or "the rope 3 which suspends the car 1 is loosened", and that the emergency stop is operated. are doing.

  However, in order for the rope to slide in the sheave groove, a large hoist capable of outputting a considerably high torque is required. On the other hand, the elevator apparatus according to the third embodiment can use the weighing device 9 of the present invention to determine “the rope hanging the car is loose” in a state where the safety device is hung. it can. As a result, the operation inspection of the safety device can be performed without checking the "state in which the rope slides on the sheave groove" with the large hoist.

  FIG. 9 is a configuration diagram of an elevator apparatus according to Embodiment 3 of the present invention. FIG. 9 shows the configuration of an elevator apparatus that uses the weighing device 9 to determine “the state in which the rope that suspends the car is loosened” and inspects the safety gear. The configuration of FIG. 9 is different from the configuration of FIG. 4 only in that an emergency stop inspection device 21 a that executes an emergency stop inspection procedure is provided in the controller 21. Therefore, the following description will focus on this difference.

  FIG. 10 is a flowchart illustrating a series of processes of the safety check performed by the safety check device 21a according to the third embodiment of the present invention. With reference to FIG. 10, a procedure for inspecting the safety device with the configuration of FIG. 9 will be described in detail.

  First, in step S1001, the safety gear inspection device 21a operates the safety gear. Next, in step S1002, the safety gear inspection device 21a outputs a predetermined hoisting machine torque in the descending direction of the car 1.

  Thereafter, in step S1003, the safety gear inspection device 21a confirms that the weighed value is lower than the first threshold value. Here, it is necessary to confirm that the safety gear is operating and the car 1 is being lifted up. Therefore, the basis of the weighed value is at least less than 0% load state. Therefore, the first threshold value needs to be determined as a negative value.

  In addition, in consideration of the effect that the car 1 is lifted by a requirement other than the emergency stop, by further reducing the first threshold value, it is possible to confirm that the car 1 is reliably lifted by the operation of the emergency stop. . Specifically, in consideration of the contact friction force between the car 1 and the rail 8, a value lower than the 0% load state by the friction force may be determined as the first threshold value.

  If the result of the determination in step S1003 is yes, the process proceeds to step S1004, where the safety gear inspection device 21a confirms that the torque value is higher than the second threshold value. Here, it is confirmed that the torque of the hoisting machine 5 is output to an extent sufficient to loosen the rope 3.

  Further, if the determination result in step S1004 is yes, the process proceeds to step S1005, and the safety gear inspection device 21a determines whether or not the torque equal to or more than the second threshold is maintained for a predetermined time. If the result of the determination in step S1005 is yes, the safety gear inspection device 21a determines that the car 1 has not been lowered and completes the inspection.

  Although not shown in FIG. 10, the emergency stop inspection device 21 a further confirms that the hoisting machine 5 is not rotating by the hoisting machine rotation detector, and thereby ensures that the car 1 Can be assured that has not fallen.

  On the other hand, if any of the conditions of step S1003, step S1004, and step S1005 is not satisfied and the result is no, the process proceeds to step S1006, where the safety gear inspection device 21a determines that an inspection error has occurred, and performs a series of procedures. finish. According to the above procedure, the safety gear inspection device 21a can surely confirm that the safety gear is activated and the car 1 is supported upward.

  As described above, according to the elevator apparatus of the third embodiment, the torque of the hoist is generated in the direction in which the car descends while the emergency stop device is operated, so that the car weight is lower than the predetermined weight. When the weighing device detects the set state, the operation function of the safety device is determined to be normal. As a result, the operation function of the safety gear can be reliably confirmed by using a weighing device capable of realizing high accuracy assurance against a decrease in rope tension.

  In the configuration diagrams of FIGS. 1, 4, and 9 described above, the weighing processor 22 has been described as being provided inside the elevator control device 20. However, the weighing processor 22 may be provided as a separate device outside the elevator control device 20 as long as necessary information can be exchanged. Similarly, the emergency stop inspection device 21a in FIG. 9 may be provided as a separate device outside the elevator control device 20 as long as necessary information can be transmitted and received.

  In the description of the procedure in step S503 in FIG. 5, the emergency stop device is operated in order to make the car mechanically unable to descend, but the present invention is not limited to this procedure. If the car can not be lowered mechanically, other means such as lowering the car to the lowest floor so as not to lower it further can be adopted in step S503.

  Further, FIG. 6 illustrates the calibration data 2 assuming that the load weight is −10%, but any other value may be used as long as it is a negative value smaller than 0% load.

Claims (9)

Hoisting machine,
A sheave driven by the hoist;
A rope wrapped around the sheave,
A part of the rope, which is hung on one side of the rope part with the part wrapped around the sheave,
A counterweight suspended from the rope portion on one side and the opposite side where the car is suspended from a portion wound around the sheave,
A weighing device that detects a car weight based on the tension load of the rope and outputs the weighed value,
A controller that detects a loading state of the car by a weighing value output from the weighing device,
The weighing device is configured such that, based on the weighed value when the car is in a non-loaded state, the weighing value is changed with respect to a change in the load ratio in both the case where the car weight is increased and the case where the car weight is reduced from the non-loaded state. The output of has a structure having a linear characteristic ,
An elevator apparatus that detects both a case where the tension of the rope is increased and a case where the tension is decreased by using the same calibration value . The weighing device detects a rope slack state based on a load factor for determining rope slack.
The elevator device according to claim 1. The controller generates first calibration data by acquiring a first weighing value corresponding to a first loading load ratio from the weighing device in response to a calibration command, and corresponds to a second loading load ratio. second the scale value to generate a second calibration data by acquiring from the weighing device, corresponding to said first calibration data and the second loading load factor corresponding to the first loading load factor for Elevator device according to claim 1 or 2 from the calibration data of the two points consisting of the second calibration data for calibrating the linear characteristic. The controller is
After controlling the car in the non-loaded state to be stationary, the output value of the hoisting machine torque in the stationary state is set to a value corresponding to the first loading load ratio, and By obtaining the weighed value in the state, the first calibration data is generated,
Activating an emergency stop device attached to the car, setting a state in which the car cannot be lowered to a first state, and maintaining the first state after applying a constant load hoisting torque in a direction in which the car descends. In this case, the second calibration data is generated by setting the hoisting machine torque of the constant load to a value corresponding to the second loading load ratio and obtaining the weighed value in the first state. And
The elevator apparatus according to claim 3 , wherein the linear characteristic is calibrated from the first calibration data and the second calibration data. The controller is
Obtaining the car weight in a state where the safety gear is operated from the weighing device as a first weighed value,
Activating the emergency stop device, and acquires the car weight in a state where the hoisting machine torque is generated in the direction in which the car descends, as a second weighing value from the weighing device,
The elevator device according to claim 4 , wherein when the second weighing value becomes smaller than the first weighing value, it is determined that the operation function of the safety device is normal. The controller is
When the value of the hoisting machine torque at the time of acquiring the second weighing value is detected to be larger than the difference between the weight of the counterweight and the weight of the car, the operation function of the safety device The elevator apparatus according to claim 5 , wherein it is determined that is normal. The controller is
Activating the safety gear, and, starting from the time when the hoisting machine torque is generated in the direction in which the car descends, monitors the transition state of the weighing value obtained from the weighing device, and is determined in advance. when the scale values do not decrease over a period, the elevator apparatus according to claim 5 or 6 wherein the operating function of the safety device is judged to be normal. The controller is
Is traveling elevators, three points constituted by the first hoisting machine torque during constant acceleration, and a second hoisting machine torque during constant speed running, a third hoist torque during constant deceleration To get the torque of the hoist,
Three drive loads corresponding to each of the three hoisting machine torques based on the weight of the car, the weight of the counterweight, the gravitational acceleration, the acceleration during the constant acceleration, and the acceleration during the constant deceleration. Is calculated,
Calibrating the three-point hoist torque based on the values of the three-point drive loads, utilizing the fact that the three-point drive load and the three-point hoist torque have a proportional relationship. The elevator apparatus according to any one of claims 4 to 7 , wherein the hoisting machine torque is calibrated. A method for calibrating a weighing device performed in the elevator device according to claim 1,
In the controller, according to a calibration command,
After controlling the car in the non-loaded state to be stationary, the output value of the hoisting machine torque in the stationary state is set to a value corresponding to a first loading load ratio, and the first loading load ratio A first step of generating first calibration data composed of the first loading load ratio and the first weighing value by acquiring a first weighing value corresponding to the first weighing device from the weighing device;
A state in which the car cannot be lowered mechanically is referred to as a first state, and when the first state is maintained after a constant load hoisting machine torque is applied for a predetermined time, the constant load hoisting machine torque Is set to a value corresponding to a second loading load ratio, and a second weighing value corresponding to the second loading load ratio is obtained from the weighing device, whereby the second loading load ratio and the second weighing ratio are obtained. A second step of generating second calibration data consisting of
A third step of calibrating the linear characteristic from the first calibration data and the second calibration data.

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