JP3186045U - The present invention relates to a wedge-shaped biting brake device for an elevator (elevator). - Google Patents

Abstract

[PROBLEMS] To detect when a car slip occurs in a brake device of an elevator during stop braking, and restrains the car from slipping within several tens of centimeters to stop it, thereby preventing an accident by being caught between people. A braking device is provided.
[MEANS FOR SOLVING PROBLEMS] The occurrence of slipping of a cage during stop braking of an elevator brake device is detected, and a biting protrusion (1A) provided on a fixed side (1) of a wedge-shaped biting brake device and a biting protrusion (2A) provided on a rotating body side (2) By engaging, the slipping of the basket is restrained within several tens of centimeters and stopped, and people are caught and accidents are prevented.
[Selection] Figure 3

Description

  The present invention relates to an elevator, an elevator braking section, and a brake provided with a wedge-shaped biting braking device and a brake.

  Elevators installed in buildings, high-rise buildings, etc., are moving freely to the floor where users can freely, safely, call, but the old model has recently been moved to the entrance. The door of the car opens and the user enters the car in a safe stop state, and when the user tries to get in, the car does not stop completely due to the slipping of the brakes, so the car moves to the outskirts. Stumbling on the lower solid frame of the car, falling into the basket, and moving the car without slipping while the body is sandwiched between the solid frame at the lower floor of the moving basket and the solid structure frame of the building It is speculated that personal accidents have occurred, but at present, maintenance is required regularly, and it is obliged to maintain the level of friction material wear within the safe prescribed values. Friction brake the wire So as to prevent Ri, but slippage of the car has not been detected

  The brakes of current elevators are mainly friction materials installed around the outer periphery of a cylindrical rotating part that rotates between the motor and the reduction gear that is directly connected to the inside of the two semicircular brake devices. However, the friction material tends to wear down and wear depending on the frequency of use, and there is a risk that the friction may reduce the friction force. An empty basket that is lighter than the weight is pulled to the balance weight side, and even if the door of the basket opens at the stop position due to the stop position signal, the basket cannot be stopped completely and the basket may slide

  The present invention wears and wears the friction material. Even when the car slips due to a decrease in the frictional force, it stops with the cylindrical rotating part of the brake device in order to stop the car slip within tens of centimeters safely. A wedge-shaped biting brake device is installed between two semicircular inner sides that are fixed on one side, and the wedge-shaped biting brake device is connected to the wedge-type biting brake device and the cage. The slip detection device of this unit rotates in unison, and it is possible to completely stop the slip of the car within several tens of centimeters by interlocking control with the slip signal of the basket.

  As described above, by installing the wedge-shaped biting brake device of the present invention, the conventional friction brake makes it possible to electrically detect the occurrence of slipping of the brake rotating body when the car is decelerated and stopped by detecting the slippage of the car. As a signal, it is transmitted to the electric control system of the wedge-shaped biting braking device, and the biting projection on the one-side fixed side and the biting projection on the rotating body side are actuated and meshed according to the command of the electric control signal so that the car slips. To prevent serious accidents that may pinch the human body.

It is the schematic of the whole elevator apparatus. It is a schematic sectional view showing a cage operating state when the wedge-shaped biting brake device of the present invention is not operated. FIG. 6 is a schematic cross-sectional view showing a basket restraint stop state during operation of the wedge-shaped biting brake device of the present invention. This is a schematic diagram showing an enlarged part of the biting protrusion of the wedge type biting brake device of the present invention. It is a figure which shows the one body incorporation state of the slip detection apparatus of a cage and a friction braking device interlock | cooperated with the wedge-shaped biting braking device of this invention. It is a figure which shows the slip detection apparatus of the cage | basket of this invention. It is a schematic sectional drawing which shows the cage operation state at the time of non-operation of the conventional friction type braking device. It is a schematic sectional drawing which shows the friction stop state of the cage at the time of the action | operation of the conventional friction type braking device.

  This operation method is based on the signal indicating that the elevator has approached the stop floor and the signal that has arrived. When the stop signal is output and the main motor is stopped while decelerating, the car slip detection device of the present invention is used. Therefore, whether or not the car slip measurement signal is activated or not is a reliable indicator of whether the car is slipping or not. Since it matches the value of slip, it can be freely set as a safety value as the slip value of the car, and even if the car arrives, the door of the car can be opened safely, or the car door can be opened with a low safety factor It is possible to set numerical values freely even if there is no such thing. With this numerical value setting of the car slip, the electric signal judged to be car slipping is fed back to the electric control system, and the wedge-shaped biting braking device is operated. Bite protrusion on one fixed side Engagement with the meshing protrusions on the rotating part side causes the wedge-shaped meshing braking device to engage and stop the basket from slipping within several tens of centimeters. The present invention can be modified for both old and new elevators. In the end, the slip value of the basket is detected with respect to the total length of about 2 meters, and even if the car slips, it can be stopped within tens of centimeters. Although it is intended to completely prevent accidents involving human bodies, it is possible to set a function that prevents the car door from being opened when the car slips, so that the user does not get on the car that slides. As a result, no personal injury will occur, and this function can be notified to the outside, and requests for maintenance, rescue, etc. are also possible.

  An embodiment will be described below with reference to the accompanying drawings. FIG. 1 shows a schematic diagram of the construction of the entire elevator. In general, a main motor 10 is decelerated by a speed reducer 12 through a braking device 11 according to an operation command. The car 16 is driven through the pulley 13 and the main rope 17, and at the same time, the balance and the weight 15 are also driven through the auxiliary pulley 14, and the car and the balance weight are driven to the designated floor by raising, stopping, lowering or stopping. Is performed by a control command or the conventional friction braking device shown in FIGS.

  In general, when the car approaches and arrives at the designated floor, the main motor 10 decelerates, and then stops by the conventional friction braking device of FIG. 8, but the wear of the friction material proceeds depending on the frequency of use. However, sometimes it is not possible to stop completely, and the basket may slip,

  At this time, the wedge-shaped biting braking device of FIG. 3 of the present invention is operated, and the slip sensor of the cage Magnetic sensors B and C of FIG. 5A and the magnetic sensors B and C of the slip detector of FIG. 3, when it is determined that the stopped car is slipping and a slip signal is transmitted, the braking restraint release solenoid valve 4 in FIG. 3 is actuated, and then the brake restraint actuating solenoid valve 3 is actuated. One fixed side frame 1 is pressurized and approaches the rotating body side frame 2, and after several tens of seconds, the one fixing side biting protrusion 1A and the rotating body side biting protrusion 2A mesh with each other, thereby The sliding rotation is restrained, and the sliding of the basket stops at a sliding within tens of centimeters.

  Furthermore, the present invention provides a car slip detection device. When the magnetic sensors B and C in FIG. 5 and B and C in FIG. 6 determine that a slip occurrence signal has been generated in the parked car, electric control is performed. In addition, the user does not get into the sliding basket 16 because it is fed back and the door of the basket 16 is not opened.

DESCRIPTION OF SYMBOLS 1 Frame on one side fixed side of wedge-shaped biting braking device 1A Biting protrusion on one side fixed side of wedge-shaped biting braking device 2 Frame on side of rotating body of wedge-shaped biting braking device 2A Rotating body side of wedge-shaped biting braking device 3 Brake restraint actuating solenoid valve of wedge-shaped biting brake device 4 Braking restraint releasing actuating solenoid valve of wedge-type biting brake device 5 Drive spindle 6 The direction of the arrow indicates the operating direction 7 Robust in a fixed state 8 Rotation display 8A Rotation stop display 01 Friction type braking device fixed side frame 01B Friction type braking device fixed side friction material 02 Friction type braking device rotating body side frame 03 Braking operation of friction type braking device Solenoid valve A Rotating frame of the car slip detecting device B Magnetic sensor for detecting the sliding motion of the rotating body when the car of the car slip detecting device stops C Rotating when the rotating body of the car slip detecting device rotates Shingles

    The present invention relates to an elevator which is applied by electric control by combining a wedge-shaped biting braking device and a car slip detecting device with an elevator, an elevator braking unit, and a brake.

Claims (1)

  The elevator brake system is equipped with a wedge-shaped biting brake device, which detects the slippage of the car when it stops and transmits it to the wedge-type biting brake device, and rotates the biting protrusion on the one fixed side The rotating body is constrained by meshing with the body-side biting protrusion, and stopping the car to stop sliding within tens of centimeters, or when the car slides, do not open the car door. Wedge-type biting brake device characterized by

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