JP3061501B2 - Elevator braking force inspection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator braking force inspection device, and more particularly to an elevator braking force inspection device for inspecting a braking force when a car decelerates with the operation of a brake.

[0002]

2. Description of the Related Art FIG. 12 is a longitudinal sectional view showing the entire structure of an elevator, and FIG. 13 is an enlarged front view showing a brake provided in the elevator shown in FIG.

Generally, in an elevator, as shown in FIG. 12, a hoisting machine 2, a control panel 3, a speed governor 4, and the like are provided in an upper machine room 1, and an elevator formed below the machine room 1 is provided. The car 5 and the counterweight 6 move up and down in the road 1a. A main rope 7 suspending the car 5 and the counterweight 6 is wound around a sheave (not shown) of the hoisting machine 2, and the compensating rope 7 a is hung from the car 5 and the counterweight 6. Have been. The governing rope 8 whose both ends are connected to the car 5 is formed in a loop shape, and the upper part of the loop is wound around the governor 4. The control panel 3 can be connected to the monitoring center 9 via a telephone line 9a.

[0004] The hoist 2 described above is integrally provided with a brake 10 for applying a braking force to the hoist 2. This brake 10, as shown in FIG.
Rotating drum 1 that rotates integrally with a rotating shaft (not shown)
1, provided on both sides of the rotating drum 11, respectively.
A pair of levers 12 pivoting about each end, a pair of brake shoes 13 mounted on these levers 12 and capable of abutting on the rotating drum 11, and an elastic force in a direction to close the levers 12; It has a braking spring 14 to be applied, and an electromagnetic device 15 that pushes the lever 12 open against the elastic force of the braking spring 14. This electromagnetic device 15
An electromagnetic coil 16, a plunger 17 driven downward in FIG. 13 by excitation of the electromagnetic coil 16, and a pair of plungers that rotate by driving the plunger 17 and press the other ends of the levers 12 outward. And a lever 18.

In the brake 10, braking of the rotating drum 11 and release of the braking state are alternately performed as follows. That is, since an elastic force is applied in the direction of closing the lever 12 by the braking spring 14 in the normal state, the braking shoe 13 comes into contact with the rotating drum 11 via each lever 12, and as a result,
Is braked. When a current flows through the electromagnetic coil 16, an electromagnetic force is generated in the electromagnetic coil 16 and the plunger 17 is driven downward in FIG. 13, so that the plunger lever 18 rotates to move the lever 12 outward. Press
These levers 12 are opened. As a result, the braking shoes 13 are separated from the rotating drum 11, respectively, so that the braking state of the rotating drum 11 is released. Thereafter, when the current flowing through the electromagnetic coil 16 is cut off, the rotating drum 11 is braked again as described above.

Conventionally, when checking the braking force of the brake 10, the hoisting machine is first adjusted with the braking spring 14 loosened to adjust the set length, that is, the braking force of the brake 10 is adjusted to be smaller than usual. After measuring the driving force when the hoist 2 starts sliding, the brake spring 14 is further loosened and the measurement is performed again. In this manner, the brake spring 14 is adjusted to adjust the hoist. A plurality of measurement data is obtained by repeating the measurement of the driving force when the 2 slides out several times, and then,
The braking force of the brake 10 in a normal use state is estimated based on the plurality of measurement data.

[0007]

By the way, in the above-mentioned prior art, a considerable braking force is applied to the hoisting machine 2 even when the braking spring 14 is loosened from a normal use state. Therefore, there is a problem that a large driving force is required when driving the hoisting machine 2, that is, an excessive load is applied to the electric motor that drives the hoisting machine 2. Further, since a special circuit needs to be added to the electric motor, there is a problem that this work also requires labor.

Further, since the operation of adjusting the braking spring 14 is required, the time for stopping the car 5 is prolonged, causing trouble for the elevator user, and an operation error occurs when the braking spring 14 is restored to the normal state. There were concerns that arose.
Further, since the braking force in a normal use state is estimated based on the measurement data obtained when the braking spring 14 is loosened, it is difficult to accurately check the braking force.

The present invention has been made in view of such a situation in the prior art, and has as its object to quickly and accurately control a brake without the need to adjust a brake spring of the brake. An object of the present invention is to provide an elevator braking force inspection device capable of inspecting power.

[0010]

In order to achieve this object, the present invention provides a hoist on which a main rope suspending a car and a counterweight is wound, and a braking force is applied to the hoist. Equipped with an elevator including
In the elevator braking force inspection device for inspecting the braking force, a speed detector for detecting a speed of the car, a storage unit for storing speed data of the car output by the speed detector, And a calculating unit for calculating the deceleration for stopping the car and the braking force of the brake.

[0011]

Since the present invention is constructed as described above, when a braking force is applied to the operating hoist by the brake and the car is stopped, the speed of the car is detected by a speed detector. The speed data output from the speed detector is stored in a storage unit, and then, based on the speed data stored in the storage unit, the deceleration for stopping the car and the brake The braking force is calculated by the calculation unit. Accordingly, when checking the braking force of the brake, it is not necessary to adjust the braking spring, so that the checking of the braking force can be performed quickly. Further, since the braking force in a normal use state is directly inspected, there is no need to estimate the braking force, and therefore, the above-described inspection of the braking force can be performed accurately.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator braking force inspection apparatus according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a first embodiment of an elevator braking force inspection device according to the present invention, FIG. 2 is a flowchart showing a part of a processing procedure of the braking force inspection device of FIG. 1, and FIG. FIG. 4 is a flowchart showing another part of the processing procedure of the power inspection device. FIG. 4 is a timing chart showing the correlation between the speed and acceleration and deceleration when the elevator car of FIG. 1 is operated. It is a figure showing the equation used by the calculation part with which the braking force inspection device is provided. It should be noted that FIG.
2. The same reference numerals are given to the same components as those in FIG. Further, the work procedures S1 to S12 shown in FIGS. 2 and 3 are partially connected, that is, the work procedure S9 in FIG. 2 follows the work procedure S10 in FIG.

In the elevator shown in FIG. 1, (a) of FIG.
As shown in (b) and (b), the car 5 is started and stopped. That is, when the activation command from the control panel 3 first at the activation time T ₁ is output, together with the braking state of the brake 10 is released, since the hoisting machine 2 is started, shown in FIG. 4 (b) becomes steady state at a predetermined acceleration a in the multiplication is the acceleration of the car 5 is large as the acceleration state is ended with the acceleration end time T _2. Accordingly, the speed of the passenger cage 5 after increased at a constant rate as shown in (a) of FIG. 4, the speed of the car 5 multiply the acceleration end time T ₂ of the said becomes steady speed V _1. Next, when forcibly stopping the car 5 in response to the stop command output from the control panel ₃ at the deceleration start time T3, the deceleration increases as shown in FIG. a stationary state is entered in the B _1, decelerating state ends at stop time T _4. Accordingly, the speed of the car 5 th power from the deceleration start time T ₃ of the decreases at a constant rate, and stops at the stop time T _4.

As shown in FIG. 1, the braking force inspection device according to the present embodiment is provided in the hoisting machine 2 and detects a speed of the car 5 and a speed detector 21. The data processor 22 processes the output speed data of the car 5. This data processing device 22
An interface circuit 23 connected to the speed detector 21; a storage unit 24 for storing speed data of the car 5 input through the interface circuit 23;
An arithmetic unit for calculating the deceleration of the car 5 and the braking force of the brake 10 based on the speed data of the car 5 stored in the storage unit 24, for example, a microcomputer 25, and output from the microcomputer 25. The display unit 26 displays the processing result. The data processing device 22 is connected to the control panel 3 provided in the machine room 1, and automatically controls the braking force of the brake 10 under the control of the microcomputer 25 in accordance with a command output from the control panel 3. It is designed to calculate. The microcomputer 25 controls the brake 10 based on the deceleration of the car 5, the equivalent inertia rate of the hoisting shaft (not shown) obtained from the various parameters of the elevator mechanism, and the unbalanced mass. Computing means for computing the power and a determination circuit for comparing the computation result obtained by the computation with a predetermined reference value to determine whether the braking force of the brake 10 is good are constituted. The interface circuit 23 constitutes a transmission unit for transmitting the judgment result output from the judgment circuit to the monitoring center 9 via the control panel 3 and the telephone line 9a.

In the first embodiment, the brake 1 is operated according to the processing steps S1 to S12 shown in FIGS.
A zero braking force is checked. That is, first, as step S1, an elevator mechanism system such as the mass of the car 5, the mass of the counterweight 6, the mass of the main rope 7, the mass of the compensating rope 7a, the inertia rate of the hoist 2, the sheave diameter of the hoist 2, and the like. Are stored in the storage unit 24, and based on the various parameters of the elevator mechanism stored in the storage unit 24 as the procedure S2, the microcomputer 25 calculates the equivalent inertia rate and unbalance torque of the hoisting machine shaft by the microcomputer 25. Figure 5
The calculation is performed according to the equations (1) and (2). In these equations (1) and (2), J is the equivalent inertia ratio of the hoisting machine shaft, Ds is the sheave diameter of the hoisting machine 2, M is the equivalent mass of the hoisting machine shaft, Mcw is the counterweight on the counterweight side, Tub. Indicates the unbalanced torque, and Mc indicates the car side mass.

Next, a maintenance operation is displayed and announced in the car 5 as a step S3, and it is confirmed whether or not there is a passenger in the car 5 as a step S4. While the start of the procedure S5 is suspended, the maintenance operation is displayed and announced again in the car 5 to urge the passengers to get off the car 5. On the other hand, multiply if no passengers on the car 5, starts decreasing operation of the car 5 th power at starting time T ₁ of the FIG. 4 as procedures S5. Accordingly, the passenger cage 5 are accelerated by the acceleration A as shown in (b) of FIG. 4, then the speed of the car 5 th power at the acceleration end time T _2, as shown in FIG. 4 (a) is constant to reach the speed V _1. Stores to detect the speed of the car 5 th power by the speed detector 21 of the speed data in the storage unit 24 as the procedure S6, cage 5 the brake 10 is operated in the deceleration start time T ₃ in FIG. 4 th power as steps S7 Forcibly stop. At this time, the car 5 decelerates at the acceleration (-B), that is, at the deceleration B, as shown in FIG.
Car 5-th power in the stop time T ₄ is stopped. Then, the procedure S
The microcomputer 25 calculates the deceleration B of the car 5 based on the speed data stored in the storage unit 24 as 8, and as step S9, the equivalent inertia performance factor J of the hoisting machine shaft obtained in step S2 described above, and Unbalanced torque Tub and acceleration (-B) of car 5 determined in step S8
That is, based on the deceleration B, the braking force (that is, the braking torque) of the brake 10 is calculated according to the equation (3) in FIG. In the equation (3), Tb represents the braking force of the brake 10, and ω represents the rotational angular velocity of the hoist 2.

Next, in step S10 shown in FIG. 3, the microcomputer 25 compares the calculation result obtained in step S9 with a reference value stored in the storage unit 24 to determine whether the braking force of the brake 10 is good. A determination is made, and the determination result is displayed on the display unit 26 in step S11, and the processing result is transmitted to the monitoring center 9 via the control panel 3 and the telephone line 9a by the interface circuit 23 in step S12.

In the first embodiment constructed as described above, since it is not necessary to adjust the braking spring of the brake 10, it is possible to quickly check the braking force of the brake 10 and to stop the car 5 Accordingly, it is possible to prevent the elevator user from being troubled and from causing a work error when the braking spring 14 is restored to the normal state.

Further, it is possible to directly check the braking force in a normal use state without estimating the braking force in a normal use state based on the measurement data in a state where the braking spring 14 is loosened. This allows accurate inspection of the braking force. At this time, since it is not necessary to drive the hoist 2 while the brake 10 is operating, it is not necessary to apply an excessive load to the electric motor that drives the hoist 2.

Further, since the determination result of determining whether the braking force of the brake 10 is good is transmitted from the interface circuit 23 to the monitoring center 9, the monitoring center 9 monitors the braking force of the brake 10. And therefore,
Safety of the elevator can be improved.

In the first embodiment, the speed detector 2
Although 1 is provided on the hoist 2, the speed detector 21 may be provided on the governor 4 or the deflector 4a instead of the hoist 2. Furthermore, in the first embodiment, the data processing device 22 is provided outside the control panel 3;
The data processing device 22 can be provided in the inside.

FIG. 6 is a block diagram showing a second embodiment of the elevator braking force inspection device according to the present invention, FIG. 7 is a flowchart showing a part of the processing procedure of the braking force inspection device of FIG. 6, and FIG. 6 is a flowchart showing another part of the processing procedure of the braking force inspection device, and FIG. 9 is a correlation of speed, acceleration, deceleration, armature current of electric motor and field current when operating the elevator car of FIG. A timing chart showing the relationship,
FIG. 10 is a characteristic diagram showing a correlation between a field current and a field magnetic flux of a motor provided in the elevator of FIG. 6, and FIG. 11 is a diagram showing an equation used in an arithmetic unit provided in the braking force inspection device of FIG. is there. It should be noted that FIG.
2. The same reference numerals are given to the same components as those in FIG. Further, the manual operation procedures S21 to S21 shown in FIGS.
S36 is partially connected, that is, the work procedure S28 in FIG. 7 is continued from the work procedure S29 in FIG.

A DC elevator hoisting machine 31 shown in FIG.
Is driven by a three-phase induction motor 33 connected to a three-phase power supply 32. The electric motor 33 has an armature 33 a and a field winding 33 b connected to a power supply 34. A field current If flows between the power supply 34 and the field winding 33b to form a field magnetic flux ζφ. Further, the armature 33
a is connected to a DC generator 36 having a field winding 36a connected to a power supply 35, so that an armature current Ia flows between the armature 33a and the DC generator 36.

In this DC elevator, the car 5 is started and stopped as shown in FIGS. 9A and 9B. That is, when the activation command from the control panel 3 first at the activation time T ₁ is output, together with the braking state of the brake 10 is released, since the hoisting machine 31 is activated, is shown in FIG. 9 (b) becomes steady state at a predetermined acceleration a in the multiplication is the acceleration of the car 5 is large as the acceleration state is ended with the acceleration end time T _2. Accordingly, the speed of the passenger cage 5 after increased at a constant rate as shown in (a) of FIG. 9, the speed of the car 5 multiply the acceleration end time T ₂ of the said becomes steady speed V _1. Next, when forcibly stopping the car 5 in response to the stop command output from the control panel ₃ at the deceleration start time T3, the deceleration increases as shown in FIG. a stationary state is entered in the B _1, decelerating state ends at stop time T _4. Accordingly, the speed of the car 5 th power from the deceleration start time T ₃ of the decreases at a constant rate, and stops at the stop time T _4.

As shown in FIG. 6, the braking force inspection device of this embodiment is provided in the hoisting machine 31 and detects a speed of the car 5 by a speed detector 41; An armature current detector 42 interposed between the DC generator 36 and detecting the armature current Ia, and a field current detector provided between the power supply 34 and the field winding 33b and detecting the field current If 4
3 and a data processing device 44 for processing the current data output from the current detectors 42 and 43 and the speed data of the car 5 output from the speed detector 41.
It consists of The data processing device 44 includes an interface circuit 45 connected to the speed detector 41, a control program for the data processing device 22, a mass of the car 5, a mass of the counterweight 6, a mass of the main rope 7, and a compensation rope. 7a, the rate of inertia of the hoist 31, the hoist 31
A ROM 46 for storing in advance various parameters of the elevator mechanism such as a sheave diameter of the interface circuit;
A storage unit for storing data input through the RAM 5, for example, a RAM 47, and a deceleration and brake 1 for stopping the car 5 based on the data stored in the RAM 47;
An arithmetic unit for calculating a braking force of 0, for example, a microcomputer 48, and a display unit 49 for displaying processing results output from the microcomputer 48.
The data processing device 44 is connected to the control panel 3 provided in the machine room 1 of FIG. 1, and performs calculations by the microcomputer 48 in accordance with a command output from the control panel 3. Note that the microcomputer 48 controls the brake 10 based on the deceleration of the car 5, the equivalent inertia rate of the hoisting shaft (not shown) obtained from the various parameters of the elevator mechanism, and the unbalanced mass. A calculating means for calculating the power and a determining circuit for comparing the calculation result with a predetermined reference value to determine whether the braking force of the brake 10 is normal are constituted. Control panel 3,
A transmission unit for transmitting the data to the monitoring center 9 via the telephone line 9a is configured.

In the second embodiment, the braking force of the brake 10 is checked according to the processing steps S21 to S34 shown in FIGS. That is,
First, in step S21, the mass of the car 5, the mass of the counterweight 6, the mass of the main rope 7, the mass of the compensation rope 7a,
Various parameters of the elevator mechanism, such as the inertia coefficient of the hoist 31, the sheave diameter of the hoist 31, etc., are stored in the ROM 46, and the procedure S
The ROM 46 also stores the no-load saturation characteristic determined by the relationship between the field current If and the field magnetic flux で φ as 22. Next, in step S23, the microcomputer 25 calculates the equivalent inertia ratio J and the unbalanced torque Tub of the hoisting machine shaft according to the above-described equations (1) and (2) in FIG.

Next, a maintenance operation is displayed and announced in the car 5 as a step S24, and it is confirmed whether or not there is a passenger in the car 5 as a step S25. If there is a passenger, the start of the next step S26 is suspended. I do. Meanwhile, car 5
If the no passengers within, as steps S26, starts the no-load lowering operation of the car 5 th power at starting time T ₁ of the FIG maintenance operation speed. The field winding 3 of the generator 36 in this start-up time T ₁
When a current flows through 6a, a voltage is generated by the generator 36, and an armature current Ia flows through the armature 33a as shown in FIG. 9C. The passenger cage 5 and accelerated by the acceleration A as shown in (b) of FIG. 9, as shown in FIG. 9 (a), the speed of the car 5 th power at the acceleration end time T _2, has reached a steady speed V ₁ .
Thereafter, the forced stop of the car 5 th power actuate the brake 10 in the deceleration start time T ₃ in FIG. At this time, car 5
The acceleration (-B) that is decelerated with the deceleration B, and car 5 th power at the stop time T ₄ in FIG. 9 stops. When the car 5 is decelerated, the speed of the car 5 is detected by the speed detector 41 in step S27, and the speed data is input and stored in the RAM 47 via the interface circuit 45, and the current detectors 42, 43 , The armature current Ia and the field current If are respectively detected, and the current data is input to the RAM 47 and stored.

Next, as a step S28 in FIG.
The microcomputer 48 calculates the acceleration (-B) of the car 5, that is, the deceleration B, based on the speed data of the car 5 stored in 7, and inputs it to the RAM 47 for storage. In step S29, based on the current data of the field current If stored in the RAM 47, the field magnetic flux ζφ is calculated from the correlation between the field current If and the field magnetic flux ζφ shown in FIG. (4) of FIG. 11 based on the current data of the armature current Ia stored in the RAM 47.
The electric braking force generated in the electric motor 33 is calculated according to the equation. In this equation (4), Tdy represents an electric braking force (ie, braking torque) generated in the motor 33, Δφ represents a field magnetic flux of the motor 33 (ie, a torque generation coefficient of the motor 33), and Ia represents an armature current. ing.

Next, as step S30, the above-described procedure S
23, and the deceleration B of the car 5 obtained in step S28, and the equivalent inertia ratio J and the unbalanced torque Tub of the hoisting machine shaft determined in step S23.
Then, the mechanical braking force (ie, braking torque) of the brake 10 is calculated according to the equation (5) in FIG. 11 based on the electrical braking force Tdy obtained in step S29. In the equation (5), Tb is the mechanical braking force of the brake 10, J is the equivalent inertia performance factor of the hoisting machine shaft, Tdy is the electric braking force generated in the electric motor 33, Tub is the unbalanced torque, and ω is the hoisting. The rotation angular velocity of the machine 2 is shown.

Next, in step S31, the microcomputer 48 stores the calculation result obtained in step S30 in the RAM.
It is determined whether the braking force of the brake 10 is normal by comparing with the reference value stored in 47, and the comparison determination result is displayed on the display unit 49 in step S32, and is processed by the interface circuit 45 in step S33. The result is transmitted to the monitoring center 9 via the control panel 3 and the telephone line 9a in FIG.

In the second embodiment having the above-described structure, the same effect as that of the first embodiment can be obtained. Although the speed detector 41 is provided in the hoisting machine 31 in the second embodiment, the speed detector 41 may be provided in the speed governor 4 or the deflector wheel 4a instead of the hoisting machine 31. . Further, in the second embodiment, the data processing device 44 is provided outside the control panel 3, but the data processing device 44 may be provided in the control panel 3.

[0032]

Since the present invention is constructed as described above, it is possible to quickly check the braking force of the brake without requiring the operation of adjusting the brake spring of the brake, and thus the efficiency of the maintenance work of the elevator. It is possible to improve the system and prevent the trouble for the elevator user. In addition, since the braking force of the brake can be checked accurately, the operating state of the brake can be reliably grasped to enhance the safety of the car. Furthermore, when checking the above-mentioned braking force, it is not necessary to apply an excessive load to the electric motor driving the hoist, so that it is possible to avoid failure of the electric motor, shortening of the life and the like.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of an elevator braking force inspection device according to the present invention.

FIG. 2 is a flowchart showing a part of a processing procedure of the braking force inspection device of FIG. 1;

FIG. 3 is a flowchart showing another part of the processing procedure of the braking force inspection device of FIG. 1;

FIG. 4 is a timing chart showing a correlation between speed, acceleration and deceleration when the elevator car of FIG. 1 is operated.

FIG. 5 is a diagram showing an equation used in an arithmetic unit provided in the braking force inspection device of FIG. 1;

FIG. 6 is a block diagram showing a second embodiment of an elevator braking force inspection device according to the present invention.

FIG. 7 is a flowchart showing a part of a processing procedure of the braking force inspection device of FIG. 6;

FIG. 8 is a flowchart showing another part of the processing procedure of the braking force inspection device of FIG. 6;

9 is a timing chart showing a correlation among speed, acceleration, deceleration, an armature current of a motor, and a field current when the elevator car of FIG. 6 is operated.

FIG. 10 is a characteristic diagram showing a correlation between a field current and a field magnetic flux of a motor provided in the elevator of FIG.

FIG. 11 is a diagram showing an equation used in a calculation unit provided in the braking force inspection device of FIG. 6;

FIG. 12 is a longitudinal sectional view showing the entire configuration of a general elevator.

FIG. 13 is an enlarged front view showing a brake provided in the elevator of FIG. 12;

[Explanation of symbols]

 Reference Signs List 1 machine room 1a hoistway 2 hoisting machine 3 control panel 4 governor 4a deflector car 5 car 6 counterweight 7 main rope 7a compensation rope 9 monitoring center 10 brake 21 speed detector 22 data processing device 23 interface circuit ( Transmission unit) 24 Storage unit 25 Microcomputer (arithmetic unit, determination circuit) 26 Display unit 31 Hoisting machine 41 Speed detector 42 Armature current detector 43 Field current detector 44 Data processing device 45 Interface circuit (Transmission unit) 46 ROM 47 RAM (storage unit) 48 Microcomputer (arithmetic unit, judgment circuit) 49 display unit

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-58-100481 (JP, A) JP-A-4-169485 (JP, A) JP-A-3-67880 (JP, A) JP-A-4- 313582 (JP, A) JP-A-4-201957 (JP, A) JP-A-4-66483 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B66B 1/00-5 / 28

Claims (7)

(57) [Claims] 1. An elevator, comprising: a hoist on which a main rope suspending a car and a counterweight is wound; and a brake for applying a braking force to the hoist. In a braking force inspection device for an elevator to be inspected, a speed detector for detecting a speed of the car,
A storage unit that stores the speed data of the car output by the speed detector; and a calculation unit that calculates a deceleration when the car is stopped and a braking force of the brake. Elevator braking force inspection device. 2. The deceleration of the car, the equivalent inertia coefficient of the hoisting machine shaft obtained from various constants of the elevator mechanism including the mass of the car, the mass of the counterweight, and the mass of the main rope, 2. The arithmetic unit according to claim 1, further comprising: an arithmetic unit configured to calculate a braking force of a brake based on an unbalanced mass due to a difference between the mass of the car and the mass of the counterweight. Elevator braking force inspection device. 3. An electric motor for driving the hoist, wherein an armature current detector for detecting an armature current and a field current detector for detecting a field current are provided. , The mass of this car, the mass of the counterweight, the equivalent inertial performance factor of the hoisting machine shaft determined from the various parameters of the elevator mechanism system including the mass of the main rope, and the mass of the car and the mass of the counterweight. 2. The elevator control system according to claim 1, further comprising a calculating unit configured to calculate a braking force of the brake based on an unbalanced mass due to a difference between the armature current and the field current. Power inspection device. 4. The vehicle according to claim 1, wherein the speed detector is provided on the hoist, a governor for controlling a car speed, or a deflector around which the main rope is wound.
An elevator braking force inspection device as described in the above. 5. The apparatus according to claim 1, wherein said calculation unit automatically calculates a braking force of said brake in accordance with a command output from a control panel provided in a machine room. An elevator braking force inspection device according to claim 4. 6. The elevator braking force inspection device according to claim 1, further comprising a transmission unit that transmits a calculation result obtained by the calculation of the calculation unit to a monitoring center that performs remote monitoring. 7. A determining circuit for comparing a calculation result obtained by the calculation of the calculating section with a predetermined reference value to determine whether or not the braking force of the brake is good, and a signal output from the determining circuit. 2. An elevator braking force inspection device according to claim 1, further comprising a display unit for displaying the comparison result.