JP6960885B2 - How to stop the compensating train automatic stop - Google Patents

Description

The present invention relates to a method of stopping the compensating relative to the position of the grease nipple.

The grease filled in the bearing supporting the rope axle of the hoisting machine loses its viscosity and deteriorates due to the sliding of the inner ring and the outer ring of the bearing. Therefore, in the conventional periodic inspection of the elevator device, new grease is injected into the bearing supporting the rope axle of the hoisting machine to discharge the deteriorated grease (see, for example, Patent Document 1).

The grease injected into the bearing supporting the sheave axle is injected via a grease nipple provided near the bearing of the sheave axle and rotating around the sheave axle together with the sheave axle. As new grease is injected into the bearing from the grease nipple, the deteriorated old grease is pushed out and discharged. As a result, the bearing is filled with new grease.

The grease injection operation is performed by stopping the sheave with the grease nipple located on the upper part of the sheave axle. The control panel that controls the rotation of the hoist is usually installed near the hoist. Therefore, the operator manually operates the hoist while checking the position of the grease nipple to rotate the sheave, and stops the sheave when the grease nipple is located on the upper part of the sheave. Then, new grease is injected from the grease nipple into the bearing.

Japanese Unexamined Patent Publication No. 2001-278571

In the periodic inspection of elevator equipment, the bearings that inject grease are not limited to the bearings of sheaves.

In a rope-type elevator device installed in a high-rise building, when the car is traveling on the upper floor side and when the car is traveling on the lower floor side, the main rope on the car side There is a large difference in length from the main rope on the counterweight side. Then, the weight is biased between the main rope on the car side and the main rope on the counterweight side, and a load is applied to the motor of the hoisting machine.

Therefore, in such an elevator device, in the pit at the lower part of the hoistway, one end is attached to the car and the other end is attached to the balance weight. The device is installed. Then, by making the weight of the compensating rope equal to that of the main rope, the weight bias that occurs between the main rope on the car car side and the main rope on the counterweight side is compensated. During regular inspections of elevator equipment, it is necessary to inject grease into the bearings that support the rotating shaft of this compensatory.

However, in a rope-type elevator device installed in a high-rise building, a hoisting machine and a control panel are installed in a machine room provided at the upper part of the hoistway. Furthermore, the compensive is covered with a cover or the like for the safety of the operator. Therefore, the operator cannot operate the control panel while checking the position of the grease nipple provided on the compensating.

Therefore, conventionally, when the work of injecting grease into the bearing of the compensive is performed, the worker who operates the hoisting machine in the machine room and the worker who confirms the position of the grease nipple of the compensive in the pit are required to perform the work. There is a problem that it is necessary to carry out the work while communicating with each other by a radio or the like, and the work must be carried out by a plurality of workers.

When working alone, check the position of the compensating grease nipple in the pit, go up to the machine room, and rotate the sheave. Then, return to the pit and check the position of the grease nipple again. If the grease nipple is not in the proper position at this time, the work of going up to the machine room again, rotating the sheave, and returning to the pit to check the position of the grease nipple must be repeated. As described above, there is a problem that it takes a lot of man-hours to adjust the position of the compensating by one worker, and the work efficiency is poor.

The present invention has been made to solve the above-mentioned problems, and even if there is only one worker, the compensating can be quickly stopped at a position where grease injection work is possible. This is to obtain a fixed-position stop method for pencils.

The fixed position stop method of the compensive according to the present invention is to stop the compensive with reference to the position of the grease nipple arranged on the compensive, and is in the radial direction of the position where the grease nipple is arranged on the compensive. The process of attaching the piece to be detected on the outside, the process of installing a detector that detects the piece to be detected and outputs the detection signal, the process of driving the hoist to rotate the nipple at low speed, and the detection signal Based on this, the hoisting machine is stopped to stop the rotation of the nipple.

The fixed-position stop method of the compensive according to the present invention detects a piece to be detected attached to the compensive based on the position of the grease nipple and stops the compensive, so that the grease can be injected quickly to a position where the grease can be injected. You can stop the compensating. As a result, even if there is only one worker, the grease injection work can be performed efficiently.

It is a schematic diagram which shows the example of the elevator device provided with the compensating device which uses the fixed-position stop method of compensive according to Embodiment 1 of this invention. It is a figure which shows the compen device of the elevator device of FIG.

Hereinafter, preferred embodiments of the compensating fixed-position stop method of the present invention will be described with reference to the drawings.

Embodiment 1.
FIG. 1 is a schematic view showing an example of a rope-type elevator device 1 provided with a compensator device 10 in which the compensating fixed-position stop method according to the first embodiment of the present invention is used. FIG. 2 is a diagram showing a compensator device 10 of the elevator device 1 of FIG.

First, a configuration of a rope-type elevator device 1 including a compensator device 10 in which the compensating fixed-position stop method according to the first embodiment will be used will be described. The configuration of the elevator device 1 described here is an example, and does not limit the elevator device 1 to which the compensating fixed-position stop method of the present invention is applied.

As shown in FIG. 1, a car 4 and a counterweight 5 are arranged in the hoistway 100 of the elevator device 1. A machine room 110 is provided above the hoistway 100. In the machine room 110, a hoisting machine 2 and a control panel 200 as a control device are arranged. A compensator 10 is arranged in the pit 120 below the hoistway 100.

The car 4 and the counterweight 5 are suspended by a main rope 3 wound around a sheave 2a of the hoisting machine 2. The car 4 and the counterweight 5 move vertically up and down in the hoistway 100 by rotating the sheave 2a.

One end side of the compensating rope 11 is attached below the car 4. The other end side of the compensating rope 11 is attached below the counterweight 5. The compensating rope 11 is wound around the compensating 12 of the compensating device 10. As a result, as shown in FIG. 1, the main rope 3 and the compen rope 11 are connected in a loop shape in the hoistway 100 via the car 4 and the counterweight 5.

FIG. 2 is a schematic view showing the compensator 10. The compensating device 10 is composed of a compensating rope 11, a compensating receive 12, a support frame 13, a plurality of guide shoes 14, and a plurality of guide rails 15.

The support frame 13 supports the rotation shaft 12a of the compensive 12 and covers the periphery of the compensive 12 to prevent the operator from coming into contact with the rotating compensive 12. The support frame 13 is supported by a plurality of guide shoes 14 so as to be movable in the vertical direction on the plurality of guide rails 15. Further, the support frame 13 applies tension to the compensating rope 11 by the weight of the compensating 12.

The main rope 3 and the compen rope 11 extend with time. The support frame 13 compensates for the elongation over time by descending along the guide rail 15, and also applies tension to the main rope 3 and the compensating rope 11.

When the main rope 3 or the compensating rope 11 is broken or stretched abnormally, the support frame 13 moves significantly downward. The compensator 10 has a safety device that makes the hoisting machine 2 emergency stop when the support frame 13 moves beyond the permissible range.

The safety device includes a cam 19 attached to the side surface of the support frame 13 and a detector 20 having a contact-type detection unit 21 installed adjacent to the guide rail 15. The detector 20 outputs a detection signal when the detection unit 21 comes into contact with the cam 19 and is pressed. The detection signal of the detector 20 is input to the control panel 200 as a safety signal.

The safety signal input to the control panel 200 is configured to be constantly output while the detection unit 21 is pressed by the cam 19. When the support frame 13 moves out of the normal range and the cam 19 moves away from the detection unit 21, the detection signal of the detector 20 is not output and the safety signal is not input to the control panel 200. That is, the range of the normal position of the support frame 13 is set by the range of contact between the cam 19 and the detection unit 21.

A relay box 300 in which a terminal block is housed is arranged on the inner wall of the pit 120. The terminal block of the relay box 300 is connected to the control panel 200 by a cable 310 laid along the inner wall of the hoistway 100. In addition to the signal line 22 that transmits the detection signal of the detector 20, the terminal block of the relay box 300 is connected to signal lines, power lines, and the like of various devices arranged in the pit 120, such as a seismograph (not shown). ..

The safety signal, which is the detection signal of the detector 20, is input to the control panel 200 via the signal line 22, the relay box 300, and the cable 310. The control panel 200 stops the hoisting machine 2 when this safety signal is no longer input.

The compensating 12 is fixed to the rotating shaft 12a via the bearing 12b. A grease nipple 18 is attached to the radial outer side of the bearing 12b of the compensating 12. A through hole (not shown) leading to the bearing 12b is formed in the portion of the Compensive 12 where the grease nipple 18 is attached. As a result, the grease injected from the grease nipple 18 is injected into the bearing 12b.

The support frame 13 is provided with windows 16 and 17 for inspection of the compensating 12. The operation of injecting grease from the grease nipple 18 of the compensating 12 into the bearing 12b is performed through the window 16 or the window 17, or by removing the front cover 13a of the support frame 13, and using a grease pump (not shown).

Next, a procedure of stopping the compensive 12 by the fixed-position stopping method of the compensive according to the first embodiment and injecting grease into the bearing 12b will be described.

First, the control panel 200 is operated to stop the operation of the elevator device 1 and switch the hoisting machine 2 to manual operation. The manual operation of the hoisting machine 2 may be performed by the control panel 200, or the portable operation device 210 may be connected to the control panel 200.

Next, the position of the grease nipple 18 of the compensating 12 is confirmed from the window 16 or the window 17 of the support frame 13. If the position of the grease nipple 18 cannot be confirmed from the window 16 and the window 17, the front cover 13a of the support frame 13 is removed for confirmation.

Next, the detected piece 30 is attached to the compensating piece 12 at a position visible from the axial direction through the window 16 and the window 17 on the radial outside of the position where the grease nipple 18 is attached. The piece 30 to be detected is attached as a mark for timing the hoisting machine 2 to be stopped in order to stop the compensating 12 so that the grease nipple 18 is at a position where grease can be injected. The detected piece 30 is detected by a detector 31 described later.

The sheave and the compensating 12 are connected to the heavy car 4 and the counterweight 5 by the main rope 3 and the compensating rope 11, respectively. Therefore, a strong inertial force acts on the sheave and the compensating 12, and a time lag occurs between the time when the hoisting machine 2 is stopped and the time when the sheave and the compensating 12 are completely stopped. Therefore, the detected piece 30 is attached to the compensive 12 in consideration of the angle at which the compensive 12 rotates during this time lag.

The stop control of the motor that drives the hoisting machine 2 incorporates a control that decelerates and stops the motor in consideration of the inertial force applied to the car when stopped. Such deceleration stop control may also be incorporated in the stop control by manual operation. In this case, the angle at which the compensating machine 12 rotates is confirmed in advance from the time when the hoisting machine 2 is stopped to the time when the compensating machine 12 is completely stopped. Then, in consideration of this rotation angle, the detected piece 30 is attached to the compensating 12.

The detected piece 30 is composed of a reflector, a sticker that reflects light, and the like. When the compensive 12 is a magnetic material, the detected piece 30 may be attached to the compensive 12 with a magnet. When the compensive 12 is not a magnetic material, the detected piece 30 is attached to the compensive 12 using an adhesive tape or the like.

Next, the detector 31 is attached to the window 16 of the support frame 13 or the window frame of the window 17 using a clip or the like. If the detector 31 cannot be attached to the window frame, the detector 31 is installed on the floor 100b of the hoistway 100 or the like using a support such as a tripod.

The detector 31 is an optical sensor that detects the presence or absence of an object based on the presence or absence of reflected light that is reflected by irradiating the object with a light beam. The detector 31 is configured to output a detection signal when the detected piece 30 is detected.

The combination of the detected piece 30 and the detector 31 is not limited to the reflector and the optical sensor. For example, the combination of the detected piece 30 and the detector 31 may be a magnet and a magnetic sensor, or may be a member having irregularities and a distance sensor.

Next, the detection signal of the detector 31 can be confirmed in the machine room 110.
For example, when the terminal block of the relay box 300 has an empty terminal, the signal line 32 for transmitting the detection signal of the detector 31 is connected to the empty terminal of the relay box 300 as shown by the chain double-dashed line in FIG. do.
Next, the terminal of the control panel 200 to which the empty terminal is connected and the terminal for lighting the display device such as a lamp are connected so that the display device is turned on by the input of the detection signal.

If there are no empty terminals in the terminal block of the relay box 300, the signal line 22 is extended from the detector 31 to the machine room 110. Alternatively, a detector 31 having a function of transmitting a detection signal wirelessly is used, and a wireless receiving terminal is installed in the machine room 110 to receive the detection signal of the detector 31.

Next, the control panel 200 or the portable operating device 210 is operated to drive the hoisting machine 2. Then, the sheave 2a and the compensating 12 are rotated at the slowest speed.

When the compensating 12 rotates and the detector 31 detects the detected piece 30, the detector 31 outputs a detection signal. Then, when the detection signal is output, the display device arranged in the machine room 110 is turned on.

After confirming that the display device is lit, the control panel 200 or the portable operation device 210 is operated to stop the hoisting machine 2. By stopping the hoisting machine 2, the rotation of the compensating machine 12 is stopped. As a result, the grease nipple 18 stops at a position where grease can be injected.

Next, grease is injected from the grease nipple 18 into the bearing 12b using a grease pump or the like.

Next, the control panel 200 or the portable operating device 210 is operated to drive the hoisting machine 2 again. Then, the car 4 is reciprocated from the top floor to the bottom floor, and the compensating 12 is rotated a plurality of times in both forward and reverse directions. As a result, old grease seeps out from the bearing 12b.
Next, the old grease that has exuded from the bearing 12b is wiped off.
With the above, the work of injecting grease into the bearing 12b of the compensating 12 is completed.

In the inspection of the elevator device 1, in addition to the work of injecting grease into the bearing 12b of the compensating device 12, the work of confirming the clearance C between the lower end of the compensating device 12 shown in FIG. 2 and the floor 100b of the hoistway 100 is performed. Be struck. Then, when the clearance C is out of the permissible range, the clearance C is adjusted to be within the permissible range.

When the compensator 10 has a function of measuring the clearance C, the control panel 200 or the portable operating device 210 may be configured to display the value of the measured clearance C. As a result, the man-hours for inspection by the operator are reduced.

As described above, according to the fixed-position stopping method of the compensive according to the first embodiment, the detected piece 30 is attached to the radial outer side of the compensive 12 at the position where the grease nipple 18 is attached, and the detected piece 30 is attached. A detector 31 for detecting the above is installed. Further, the signal line 22 for transmitting the detection signal of the detector 31 is connected to the display device arranged in the machine room 110. Then, when the hoisting machine 2 is driven to rotate the compensating machine 12 at a low speed and the detector 31 detects the detected piece 30, the display device is turned on by the detection signal output from the detector 31. After confirming that the display device is lit, the hoisting machine 2 is stopped and the compensating machine 12 is stopped.

As a result, even if there is only one worker, the compensating 12 is stopped at a position where grease can be injected through the grease nipple 18 without reciprocating between the machine room 110 and the pit 120 many times. Can be made to. Therefore, the work of injecting grease into the bearing 12b of the compensating 12 can be efficiently performed.

In the first embodiment, the independent display device is turned on, but the mode of the display device is not limited to this.

For example, the display device provided in the control panel 200 may be turned on, or the display device provided in the portable operation device 210 may be turned on. When the display device provided in the portable operating device 210 is turned on, the detection signal of the detector 31 is input to the portable operating device 210 via the control panel 200. Alternatively, the detection signal of the detector 31 is directly input to the portable operating device 210 via an external input terminal or the like of the portable operating device 210.

Further, in the first embodiment, the operation of the hoisting machine 2 is stopped by the operator operating the control panel 200 or the portable operation device 210, but the method of stopping the driving of the hoisting machine 2 is this. It is not limited to.

For example, the drive of the hoisting machine 2 may be stopped by an inspection program. In this case, the inspection program is stored in advance in the control panel 200 or the portable operation device 210 connected to the control panel 200. Here, as the portable operation device 210, a personal computer or the like equipped with a storage device for storing the inspection program and a control device for executing the inspection program is used.

The detection signal of the detector 31 is input to the terminal of the control panel 200 corresponding to the contact used in the inspection program. Then, the detection signal of the detector 31 is monitored by the inspection program, and the hoisting machine 2 is stopped when the detection signal of the detector 31 is turned on. As a result, the drive of the hoisting machine 2 can be automatically stopped by the detection signal of the detector 31. Therefore, the burden on the worker is reduced.

Further, the drive of the hoisting machine 2 may be stopped by an external relay circuit. In this case, a relay is inserted into the circuit to which the switch for stopping the hoisting machine 2 of the control panel 200 and the hoisting machine 2 are connected. Then, the relay is driven by the detection signal of the detector 31 to stop the hoisting machine 2. As a result, the drive of the hoisting machine 2 can be automatically stopped without using the inspection program. Therefore, the burden on the worker is reduced.

Further, an external relay may be inserted into the circuit connecting the stop switch of the hoisting machine provided in the portable operating device and the hoisting machine 2. Further, the stop switch of the hoisting machine provided in the portable operating device may be configured to be operable by an external input, and the detection signal of the detector 31 may be input as the external input.

In the first embodiment, the case where the hoisting machine 2 is operated in the machine room 110 has been described, but the place where the hoisting machine 2 is operated is not limited to the machine room. For example, the portable operating device 210 may be configured to be operated in the pit 120.

In this case, if the hoistway 100 is provided with a control cable having one end connected to the control panel 200 and the other end extending along the hoistway 100 to the pit 120, the cable is portable. Connect the operating device 210.

When such a cable is not arranged in the hoistway 100, the portable operating device 210 and the control panel 200 are wirelessly connected. In this case, the wireless transmission / reception terminal is connected to the control panel 200. If the portable operating device 210 is not provided with the wireless transmission / reception function, the portable operation device 210 is also connected to the wireless transmission / reception terminal.

As a result, the number of times the worker makes a round trip between the machine room 110 and the pit 120 is reduced, and the burden on the worker is reduced.

The portable operating device 210 may be provided with a sizing switch that rotates the hoisting machine 2 by a minute angle. Then, until the detector 31 detects the detected piece 30 and the display device lights up, the sizing switch is repeatedly pressed to intermittently rotate the compensating 12 at a minute angle. As a result, the compensating 12 can be stopped at a position where grease can be injected through the grease nipple 18 without using an inspection program and a relay.

Further, the portable operation device 210 is provided with a RUN switch for driving the hoisting machine 2, an UP button and a DOWN button for designating the moving direction of the car 4, and the RUN switch and either the UP button or the DOWN button can be used at the same time. It is preferable to configure the hoisting machine 2 to be driven only when it is pushed. Then, the RUN switch may be configured so that the hoisting machine 2 is driven only while the RUN switch is held down. As a result, it is possible to prevent the hoisting machine 2 from being driven by an erroneous operation.

The method of stopping the compensive at a fixed position according to the first embodiment has described the case where the compensive 12 is stopped with reference to the position where the grease nipple 18 is arranged. Is not limited to this. For example, it can be applied to a case where a sheave, a sheave, etc., which cannot be stopped manually while visually, is stopped at a fixed position. Further, it can be applied to the case where the compensating 12 or the like is stopped at a fixed position with reference to something other than the grease nipple.

1 Elevator device, 2 Hoisting machine, 2a Sheave, 3 Main rope, 4 Riding car, 5 Balance weight, 10 Compen device, 11 Compen rope, 12 Compensive, 12a Rotating shaft, 12b Bearing, 13 Support frame, 13a Front Cover, 14 guide shoes, 15 guide rails, 16, 17 windows, 18 grease nipples, 19 cams, 20 detectors, 21 detectors, 22 signal lines, 30 pieces to be detected, 31 detectors, 32 signal lines, 100 hoistways , 100b floor, 110 machine room, 120 pits, 200 control panel (control device), 210 portable operation device (control device), 300 relay box, 310 cable.

Claims (5)

A train automatic stop method for stopping the compensating device of an elevator device based on the position of a grease nipple arranged on the compensating device.
The step of attaching the detected piece to the radial outside of the compensive where the grease nipple is arranged, and
A process of installing a detector that detects the piece to be detected and outputs a detection signal, and
The process of driving the hoist to rotate the compensating machine at low speed,
It has a step of stopping the hoisting machine based on the detection signal and stopping the rotation of the compensating machine.
How to stop the compensating train automatic stop. The step of stopping the hoisting machine and stopping the rotation of the compensating machine based on the detection signal is
The process of turning on the display device by the detection signal and
The step of operating the control panel of the elevator device to stop the hoisting machine when the display device is turned on is included.
The method for stopping a compensating position according to claim 1. The step of stopping the hoisting machine and stopping the rotation of the compensating machine based on the detection signal is
The process of turning on the display device of the portable operating device by the detection signal, and
The step includes a step of operating the portable operating device to stop the hoisting machine when the display device is lit.
The method for stopping a compensating position according to claim 1. The step of stopping the hoisting machine and stopping the rotation of the compensating machine based on the detection signal is
The process of inserting a relay into the circuit connecting the switch that stops the hoisting machine and the hoisting machine, and
The step of driving the relay by the detection signal to stop the hoisting machine is included.
The method for stopping a compensating position according to claim 1. The step of stopping the hoisting machine and stopping the rotation of the compensating machine based on the detection signal is
The process of inputting the detection signal to the control device and
A step of stopping the hoisting machine by the control device based on the input of the detection signal.
The method for stopping a compensating position according to claim 1.

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