RU91565U1 - CONTROL DEVICE FOR OPENING AND CLOSING LIFT DOORS - Google Patents

Abstract

1. The control device of the mechanism open and close the doors of the elevator, comprising a device for driving doors and a device for controlling a device for driving doors, characterized in that the device for controlling a device for driving doors includes two units, one for controlling movement doors in commissioning mode, the second in operation mode. ! 2. The device according to claim 1, characterized in that the device for driving doors includes industrial applications of a three-phase asynchronous electric motor with a drive shaft on which the disk is mounted, permanent magnets of magnetic rubber are placed on the disk around the circumference, and on the electric motor shield a reader is installed, and the device also includes communication elements between the drive shaft and the doors. ! 3. The device according to claims 1 and 2, characterized in that the device for driving the doors includes a movable layer, providing a rigid connection between the cabin doors and the shaft doors and their synchronous, joint movement. ! 4. The device according to claims 1 and 2, characterized in that the reader has two channels for reading pulses, a frequency multiplier, the pulses are out of phase with respect to each other, the order of the pulses determines the direction of movement of the doors. ! 5. The device according to claim 1, characterized in that the unit for controlling the movement of doors in commissioning mode includes means for counting the number of pulses corresponding to the width of the doorway, means for selecting a low speed, means for selecting a moment on the motor shaft, and means for selecting acceleration. ! 6. Devices

Description

The utility model relates to elevator construction, in particular, to devices for controlling mechanisms for opening and closing elevator doors, and can be used in any industry where similar door designs are used.

A device is known for controlling the movement and opening of elevator doors, comprising an opening and closing relay of doors with mutually interlocking contacts in their power circuit, a deceleration relay with a make contact, a door monitoring relay with interlocking contacts of door locks of mine doors and cabin doors, in order to increase reliability and safety of the elevator operation when any item is stuck between the door leaves, it is equipped with an additional relay for controlling the closing of doors in the chain of interlocking contacts included in power supply circuit of the door opening relay with its NC contact parallel to the closing contact of the deceleration relay (see copyright certificate No. 1359242 A1 В66В 1/30).

The specified device was used in relay control circuits of the elevator, which are currently replaced by microprocessor control systems. The relay circuit in its functionality is significantly inferior to microprocessor ones.

A known installation and method of controlling elevator doors, comprising a device for driving doors and a device for controlling a device for driving doors. A device for generating pulses during the movement of the doors is introduced therein, and said control device is configured to control the movement of the doors in accordance with the pulses of the device for generating pulses. A device for driving doors includes a motor with a drive shaft and a means of communication between the drive shaft and the doors, made in the form of a converter for the rotational movement of the drive shaft into the translational movement of the doors, an AC motor. The pulse generating device is a pulse encoder. The encoder includes a coding disk, rigidly attached to the drive shaft of the engine and made with many holes on the periphery. A light source located on one side of the coding disk and installed with the possibility of direction to the last luminous flux. A light receiver located on the opposite side of the coding disk and installed with the possibility of receiving light through the holes of the latter and generating electrical pulses in response to each received light pulse. The control device includes a means for counting pulses from the device for generating pulses as a percentage of their total number for a full passage of the door in one direction in accordance with a given law of motion, a microprocessor having a fast associating memory. The microprocessor memory is capable of storing a predetermined law of door movement, characteristics of a three-phase motor, while the characteristics include voltage / torque, frequency / speed, engine phase / direction of movement. The control device is configured to set the door motion law in the form of a dependence of speed on the normalized distance, expressed as a percentage, taking for 100% the total distance traveled by the door in one pass. The law of movement of doors with many control points corresponding to giving a command to change the speed and torque of a three-phase motor, setting control points as a percentage of the total distance traveled by the door (see patent for invention No. 2146644 C1 IPC B66B 13/06).

The disadvantages of this installation and the door control method are the use of an encoder based on the light flux, which requires a power source for a light source, the light source is subject to contamination, which reduces the reliability and stability of the elevator, the lack of a reversal function when the doors are closed and there is an obstacle or a passenger in doorway.

The technical task is to create a device that provides more reliable and stable operation of doors, as well as increased comfort for the user with an elevator. Comfort is understood as the absence of shock in transient conditions, the exclusion of unacceptable force on the passenger in the doorway when closing doors, when reversing, smooth operation, low noise.

The specified task is solved as follows:

The utility model includes a device for driving doors and a device for controlling a device for driving doors, two units are included in the device for controlling a device for driving doors, one for controlling door movement in commissioning mode, and the second in operation mode.

A device for driving doors includes general industrial applications three-phase asynchronous electric. an engine with a drive shaft on which the disk is mounted, permanent magnets of magnetic rubber are placed on the disk around the circumference, and on the electric panel. a reader is installed in the engine, the reader has two pulse reading channels, the pulses are out of phase with respect to each other, the order of the pulses determines the direction of movement of the doors, the device also includes communication elements between the drive shaft and the doors, the device for driving the doors includes a movable layering, providing a rigid connection between the doors of the cabin and the shaft and their synchronous, joint movement. The unit for controlling the movement of doors in commissioning mode includes means for counting the number of pulses corresponding to the width of the doorway, means for selecting a low speed, means for selecting the moment on the electric shaft. engine, a means of selecting acceleration. The unit for controlling the movement of doors in operating mode includes a means of setting the law of change of the speed of movement of the doors and compliance with the condition that the maximum speed does not exceed the value calculated by the formula:

where V is the maximum speed of the doors

I - the total moment of inertia of the rotating parts

ω is the angular velocity of the drive shaft

M is the mass of the progressively moving door

The unit for controlling the movement of doors in operating mode includes a means of controlling the destruction of the flexible traction body or loosening its tension, and also includes means for setting the speed when reversing the doors depending on the location of the doors along the width of the opening and excluding dynamic impacts in the extreme position at their opening. The pulse frequency multiplier in the control device is implemented in software. Also, the device for controlling the movement of doors includes a microcontroller, the microcontroller stores in its memory: the number of pairs of motor poles, setting the electrical or mechanical mode of holding the doors closed, acceleration, voltage, low and high speeds of opening and closing doors, the course of the movable door, width doorway, the law of movement of doors. The microcontroller implements the functions of data analysis and processing, calculates the deceleration positions, for the given door speeds in real time, processes the information and monitors deviation from the calculated modes in cases of destruction of the flexible traction unit or weakening of its tension, as well as in case of excess current, voltage , temperature, provides data storage.

The utility model differs from the prototype in the following features:

equipped with two blocks, one for controlling the movement of doors in commissioning mode, the second in operation mode;

a device for driving doors includes general industrial applications three-phase asynchronous electric. an engine with a drive shaft on which the disk is mounted, permanent magnets of magnetic rubber are placed on the disk around the circumference, and on the electric panel. a reader is installed in the engine, the reader has two pulse reading channels, the pulses are out of phase with respect to each other, the order of the pulses determines the direction of movement of the doors, the device also includes communication elements between the drive shaft and the doors, the device for driving the doors includes a movable layering, providing a rigid connection between the cabin doors and the shaft doors and their synchronous, joint movement. The pulse frequency multiplier in the control device is implemented in software. The unit for controlling the movement of doors in commissioning mode includes means for counting the number of pulses corresponding to the width of the doorway, means for selecting a low speed, means for selecting the moment on the electric shaft. engine, a means of selecting acceleration. The unit for controlling the movement of doors in operating mode includes a means of setting the law of change of the speed of movement of the doors and compliance with the condition that the maximum speed does not exceed the value calculated by the formula:

where V is the maximum speed of the doors

I - the total moment of inertia of the rotating parts

ω is the angular velocity of the drive shaft

M is the mass of the progressively moving door

The unit for controlling the movement of doors during operation includes a tool that controls the destruction of the flexible traction body or loosens its tension, and also includes a means of specifying the speed when reversing the doors, depending on the location of the doors along the width of the opening and excluding dynamic impacts in the extreme position when their discovery. The pulse frequency multiplier in the control device is implemented in software. Also, the device for controlling the movement of doors includes a microcontroller, the microcontroller stores in its memory: the number of pairs of motor poles, setting the electrical or mechanical mode of holding the doors closed, acceleration, voltage, low and high speeds of opening and closing doors, the course of the movable door, width doorway, the law of movement of doors.

The microcontroller implements the functions of data analysis and processing, calculates the deceleration positions, for the given door speeds in real time, processes the information and monitors deviation from the calculated modes in cases of destruction of the flexible traction unit or weakening of its tension, as well as in case of excess current, voltage , temperature, provides data storage.

The technical result is the provision of more reliable and stable operation of the doors, as well as increased comfort for the user with an elevator, the absence of shock in transient modes, the exclusion of unacceptable force on the passenger in the doorway when closing the doors, when reversing, smooth operation, low noise.

The utility model is illustrated by the kinematic diagram of FIG. 1, the control block diagram of FIG. 2, the control block diagram of the elevator doors of FIG. 3.

The device contains:

- a device for driving doors of FIG. 1, including general industrial use three-phase asynchronous electric. engine 1, on the drive shaft 5 of which the driving element 6 of the traction member 7 is rigidly fixed, the traction member 7 is rigidly fixed to the carriages 11 of the cabin doors, movable branches 8 are mounted on the carriages 11 of the cabin doors, rollers 9 enter the branch 8 when the cabin is in exact stop, the rollers 9 are a communication element (the connection is conditionally shown in Fig. 1 by a dash) of the doors of the cab 10 and the doors of the shaft 11, they are mounted on a swing arm 15, which performs the function of unlocking the lock, the lever 15 with the rollers 9 is fixed to the carriage 11 of the shaft doors;

- a device for controlling a device for driving doors includes a disk 4 with permanent magnets made of magnetic rubber 3, on the electric billboard. engine 1 has two readers 16 and 17 located at an angle of (90-Δ) °, controller 2, in turn, includes a pulse frequency multiplier 23, a control unit in commissioning mode 24, a control unit in operating mode 25, a modulator 26 implemented by the microcontroller 27 and the power part 28 of the regulator 2. Regulator 2 has three switches 18, 19, 20 and two adjustment resistors 21, 22. There are four options for setting the switches 18, 19, 20 to the setup mode:

1 option for the position of the switches - SW1 = 1; SW2 = 0; SW3 = 0.

2 version of the position of the switches - SW1 = 0; SW2 = 1; SW3 = 0.

3 version of the position of the switches - SW1 = 0; SW2 = 0; SW3 = 1.

4 version of the position of the switches - SW1 = 0; SW2 = 1; SW3 = 1.

Mode 4 is activated only when sequentially switching from the 3rd mode.

The operating mode corresponds to the position of the switches - SW1 = 0; SW2 = 0; SW3 = 0.

The operation of the device is illustrated in the block diagram of figure 3

The device operates as follows:

The setup mode of figure 3

1st variant of the position of the switches of Fig. 3 — in this mode, the low speed of opening and closing the doors is adjusted and adjusted, and the impulses are calculated corresponding to the full stroke of the door;

Adjustment of low speed when opening doors is done by adjusting resistor No. 1, adjustment of low speed when closing doors is done by adjusting resistor No. 2. After reaching the required speed values, the data is entered into memory;

2nd variant of the position of the switches of figure 3 - in this mode, the magnitude of the acceleration and the magnitude of the compression force of the flaps are adjusted. Adjustment of acceleration and compression forces of the flaps are made by adjusting resistors No. 1 and No. 2, respectively;

3rd option of the position of the switches of figure 3 - in this mode, the high speed is set when opening and closing the doors. High speed adjustment is performed by adjusting resistors No. 1 and No. 2, respectively.

4th variant of the position of the switches of figure 3 - the mode of forming zones of reaching in the extreme position of the doors is implemented. After setting the magnitude of the high speed of closing and opening the doors, the zone of reaching the sashes in the extreme positions and the magnitude of the movement at low speed in the zone of the course of the shutter are set. The tuning results are recorded in the memory of the microcontroller, and the transition to operation mode.

The operation mode of figure 3

The operating mode corresponds to the state of the switches - SW1 = 0, SW2 = 0, SW3 = 0. When power is applied, controller 2 waits for a command from the station to open doors 10 and 13, having received a command, the device opens doors 10 and 13 at low speed until it stops. Doors 10 and 13 stop, the rotation of engine 1 stops, pulses from the reader 16 and 17 stop coming. This mode is called the reference point determination mode. After determining the reference point, the device goes to work at high speed. Upon receipt of the command to close the doors 10 and 13, the doors are closed at high speed, working out the law of motion laid down at the stage of adjustment. In the event of an obstacle in the path of the door 10 and 13 and its stop, the pulse rate of the reader 16 and 17 decreases to zero, or if the movement of the doors 10 and 13 does not coincide with the direction of the doors 10 and 13 set by the regulator 2 (the passenger tries to open door), which is determined by the sequence of pulses from the reader 16 and 17, the controller 2 generates a reverse signal. In this case, the controller 2 gives a command to open the doors 10 and 13 for a given period of time. If the control station for some reason did not generate a signal to open the doors 10 and 13 in response to the reverse signal of the regulator 2, the regulator 2 stops the movement of the doors 10 and 13 and switches to the electric holding mode of the doors 10 and 13 by direct current. If, within a specified period of time, the control station, in response to a reverse signal, generates an open signal for doors 10 and 13, the device processes a command to open doors 10 and 13, having previously reset the reverse signal. If the reason for opening doors 10 and 13 was reverse, then when the doors 10 and 13 are closed for the first time after reversing, an obstacle in the vestibule of doors 10 and 13 is checked, and doors 10 and 13 are closed at low speed.

The device provides protection against the following emergency situations: excess current, excess voltage in the DC circuit, overheating of the power keys of the regulator 2, the destruction of the flexible traction body 7 or its slipping due to the relaxation of tension. If the specified parameters are exceeded, the device turns off.

The control of the rupture of the traction body 7 or its slipping is carried out by counting the pulses from the reading devices 16 and 17 and comparing them with the tuning values for the closed and open position of the doors 10 and 13.

Claims (9)

1. The control device of the mechanism open and close the doors of the elevator, comprising a device for driving doors and a device for controlling a device for driving doors, characterized in that the device for controlling a device for driving doors includes two units, one for controlling movement doors in commissioning mode, the second in operation mode. 2. The device according to claim 1, characterized in that the device for driving doors includes industrial applications of a three-phase asynchronous electric motor with a drive shaft on which the disk is mounted, permanent magnets of magnetic rubber are placed on the disk around the circumference, and on the electric motor shield a reader is installed, and the device also includes communication elements between the drive shaft and the doors. 3. The device according to claims 1 and 2, characterized in that the device for driving the doors includes a movable layer, providing a rigid connection between the cabin doors and the shaft doors and their synchronous, joint movement. 4. The device according to claims 1 and 2, characterized in that the reader has two channels for reading pulses, a frequency multiplier, the pulses are out of phase with respect to each other, the order of the pulses determines the direction of movement of the doors. 5. The device according to claim 1, characterized in that the unit for controlling the movement of doors in commissioning mode includes means for counting the number of pulses corresponding to the width of the doorway, means for selecting a low speed, means for selecting a moment on the motor shaft, means for selecting acceleration. 6. The device according to claim 1, characterized in that the unit for controlling the movement of doors in operation includes a means of setting the law of change in the speed of the doors and observing the condition that the maximum speed does not exceed the value calculated by the formula

, where V is the maximum speed of the doors; I is the total moment of inertia of the rotating parts; ω is the angular velocity of the drive shaft; m is the mass of the progressively moving door. 7. The device according to claim 1, characterized in that the unit for controlling the movement of doors in operating mode includes a means for controlling the destruction of the flexible traction body or loosening its tension, and also includes means for setting the speed when reversing the doors depending on the location finding the doors along the width of the opening and excluding dynamic shock in the extreme position when they open. 8. The device according to claim 1, characterized in that the device for controlling the movement of doors includes a microcontroller, in the memory of the microcontroller are stored: the number of pairs of motor poles, setting the electrical or mechanical mode of keeping the doors closed, acceleration, voltage, small and large the speed of opening and closing doors, the course of the movable door, the width of the doorway, the law of movement of doors. 9. The device according to claim 8, characterized in that the microcontroller implements the functions of data analysis and processing, calculates the deceleration positions for the given door speeds in real time, processes the information and tracks the deviation from the calculated modes in cases of destruction of the flexible traction body or weakening its tension, as well as in case of excess current, voltage, temperature, provides data storage.