KR100716863B1 - Elevator governor which has emergency stopping device for up-down-direction - Google Patents

Abstract

According to the present invention, a lever, a latch, and a ratchet are formed symmetrically on both sides of the governor wheel, and a solenoid switch is attached to either side of the governor wheel so that the elevator cage is rated at the up or down direction. If the elevator cage malfunctions due to abrasion of the brake lining or breakdown of the safety switch, the solenoid switch is activated by an electrical signal to operate the lever attached to the rotating governor wheel. An elevator governor characterized by stopping the ratchet and stopping the elevator cage by decelerating and stopping the governor rope by the rocket.

Governor wheel

Description

Elevator governor which has emergency stopping device for up-down-direction}

1 is a front view of an elevator governor having a vertical emergency stop device according to the present invention.

2 is a rear view of an elevator governor having an up-down two-way emergency stop device according to the present invention.

3 is an exploded perspective view of FIG. 1.

4 is an exploded perspective view of FIG. 2 showing the features of the present invention.

5 is a plan view of an elevator governor having an up-down bidirectional emergency stop apparatus according to the present invention.

6 is a side view of an elevator governor having a vertical emergency stop device according to the present invention.

The present invention relates to a governor, and more particularly, a lever, a latch, and a ratchet are symmetrically formed on both sides of the governor wheel, and a solenoid switch is attached to either side of the governor wheel to lift the elevator. When the cage reaches 140% of the rated speed in the up or down direction, or the elevator cage malfunctions due to the wear of the brake lining or the failure of the safety switch, the solenoid switch is operated by an electrical signal and attached to the governing governor wheel. An elevator governor having up and down two-way emergency stop device, characterized in that the stop chain is interlocked to stop the ratchet by operating the lever, and the governor rope is decelerated and stopped by the rope catcher to stop the elevator cage.

An elevator structure typically consists of a machine room, hoistway, elevator cage, wire rope, or the like. The uppermost machine room contains the main power switch, control panel, hoist and electric motor, laminar selector and governor, and the elevator cage, counterweight, guide rail, guide shoe (guide roller), hoist rope, governor rope, safety stopper (safety) device), moving cable, limit switch and buffer device at the bottom.

In the conventional elevator, the governor located in the machine room senses the speed of the elevator cage and when the speed increases above the rated speed, by sequentially performing according to the following two operations, forcibly stop the elevator cage.

In the first operation, when the speed of the elevator cage reaches 130% of the rated speed, the power supply is stopped to cut off the power supply of the hoisting motor, and at the same time, the hoisting brake is operated to stop the electric drive of the elevator. In the second operation, when the speed of the elevator cage reaches 140% of the rated speed, following the first operation, the pendulum attached to the side of the governor wheel is operated by centrifugal force due to the overspeed rotation to operate and stop the lever. The chain is interlocked to stop the ratchet, and the rope catcher, which is integrally connected to the stop chain, decelerates and stops the governor rope, thereby stopping the elevator cage. Subsequently to the second operation, the safety device at the lower end of the elevator cage is operated to catch the guide rail with a strong force to stop the descent of the elevator cage.

However, in the operation of the second operation and the safety device, it may not operate at the correct speed during the descent of the elevator cage due to the degeneration of the spring of the governor and the wear of the mechanical movable element. The operation of the elevator cage is limited only when the elevator cage descends, and the elevator cage cannot be forced to stop when the elevator cage rises above the rated speed, causing a direct accident for many people using the elevator. As the cage is raised or lowered with the door open, accidents in which the person in the door suffers from surgical injury or death are frequent.

In order to overcome the problems of the prior art, the inventors in the governor, the lever, the stop chain, the ratchet is formed symmetrically on both sides of the governor wheel, the solenoid switch is attached to either side of the governor wheel to lift the elevator cage Or the lever attached to the governing governor wheel by operating the solenoid switch by an electrical signal when the elevator cage malfunctions due to reaching 140% of the rated speed in the downward direction or due to abrasion of the brake lining or failure of the safety switch. The stop chain is interlocked to stop the ratchet, and the governor rope is decelerated and stopped by the rope catcher connected to the stop chain to stop the elevator cage. Providing elevator governor with device There is.

The governor of the present invention for achieving the above technical problem, the governor wheel housing 1, the governor wheel 6, the centrifugal pendulums 29, 39, 39, which are attached to either side of the governor wheel 6 The first lever 9 actuated by the operation of the pendulums 29 and 39, the first detent chain 7 interlocked according to the operation of the first lever 9, and the first detent chain 7 Is coupled to the first ratchet 12, the rotation of which is stopped in either direction, and the first rope catcher 20 is interlocked when the first stopper 7 is coupled to the first ratchet 12; ; And

On the other side of the governor wheel 6 due to the operation of the solenoid switch 26, the solenoid switch 26 is operated by an electrical signal generated when the hoisting wheel is rotated when the supply of the hoisting motor power is stopped. The second lever 9 ', the second stop chain 7' and the second stop chain 7 'interlocked by the operation of the second lever 9' and the second stop chain 7 'are coupled in either direction. It consists of a second ratchet 12 'which is stopped rotating, and a second rope catcher 20' which is interlocked when the second stopper 7 'and the second ratchet 12' are engaged.                     

Conventional elevator governor is the first lever (9), the first lever (9) linked by the operation of the pendulum (29), 39 is operated by centrifugal force by detecting the overspeed rotation of the governor wheel (6) The first stop chain (7) interlocked according to the operation of the), the first ratchet 12 is coupled to the first stop chain (7) to stop the rotation in either direction, and the first stop chain (7) Because only) consists of the first rope catcher 20 that is interlocked when coupled to the first ratchet 12, it was possible to make an emergency stop only when sudden acceleration occurs in any one direction in both directions.

The present invention is to overcome the problems of the prior art when the elevator cage reaches 140% of the rated speed in the up or down direction, or when the elevator cage abnormal operation due to wear of the brake lining or failure of the safety switch, namely When the power of the hoisting motor is stopped due to the operation of the safety switch, the solenoid switch 26 operates by the electrical signal generated when the hoisting wheel rotates due to the operation of the elevator cage to stop the elevator cage. It is to provide an elevator governor having up and down two-way emergency stop device.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the elevator governor having an up-down bidirectional emergency stop device according to the present invention.

3 and 4 are exploded perspective views of the elevator governor having a vertical emergency stop device according to the present invention.

As shown in FIG. 3, the governor of the present invention includes a governor wheel housing having a governor wheel housing first face 2, an governor wheel housing second face 3, and a governor wheel housing third face 4. 1) is formed, the governor wheel 6 is coupled to the governor wheel housing first surface groove (5) by a nut vertically with a constant space with the governor wheel housing third surface (4), the first The detent 7 is coupled to the detent hole 8 by a bolt, the first lever 9 is coupled by a pin to the lever hole 10, and the first ratchet 12 on the ratchet hinge shaft 11. Is coupled to the ratchet pin 13 formed on the ratchet pin 13 formed on the ratchet pin 13 formed on the first ratchet 12, and the ratchet adjuster 14 is ratcheted to the ratchet adjuster 14. The ratchet adjustment spring formed on the ratchet adjustment spring stand 16 is coupled to the spring stand 16 and the ratchet steering spring 17 by a nut. The ratchet adjustment spring stand second perforation part 21 and the rope catcher perforation part 19 with the first rope catcher 20 having the rope catcher perforation part 19 formed in the first perforation part 18 being inserted. The pin is inserted into the coupling, the pin is inserted into the ratchet adjustment spring stand third drilling portion 22 and the governor wheel housing first surface drilling portion 23, the power interrupter attachment 24 is connected to the governor It is formed on the upper end of the wheel housing first surface (2) is the power interrupter 25 is coupled to the power interrupter attachment 24 by a bolt and a nut.

As shown in FIG. 4, the governor wheel 6 is coupled by a nut to the governor wheel housing second surface groove 5 ′, and a link between the second lever 9 ′ and the solenoid switch 26 is provided. 27 is inserted and engaged by a pin, the second lever 9 'is coupled to the lever hole 10' by a pin, and the solenoid switch 26 is screwed into the solenoid switch hole 28 by a screw. The pendulum 29 is coupled to the pendulum hinge shaft 30, the second stop chain 7 ′ is coupled to the pendulum 29 by a nut, and the adjustment bolt 32 in the adjustment bolt hole 31. ), An adjustment washer 33, adjustment spring 34, adjustment spring cap 35, adjustment nut 36, 37 and adjustment square nut bolt 38 are coupled to the adjustment bolt 32. The pendulum 39 is coupled to the pendulum 39 by the adjusting square nut bolt 38, the pendulum 39 is coupled to the pendulum hinge shaft 40 by a nut, and the square bolt 41 is attached to the pendulum 39. you Coupled to the pendulum pins 42 and 43 formed on the pendulums 29 and 39, respectively, and the pendulum adjuster 44 is coupled by a ring, respectively, to the ratchet hinge shaft 11 '. The ratchet 12 'is coupled to the ratchet pin 13' formed on the second ratchet 12 'and the ratchet guide hole 15' formed on the ratchet guide 14 'is coupled by a ring. The ratchet adjustment spring stand 16 'and the ratchet adjustment spring stand 16' are coupled to the ratchet adjuster 14 'by a nut, and the ratchet adjustment spring stand first perforated portion formed in the ratchet adjustment spring stand 16' 18 ') to the ratchet adjustment spring stand second perforation 21' and the rope catcher perforation 19 'with the second rope catcher 20' having the rope catcher perforation 19 'inserted therein. The pin is inserted and coupled, and the pin is inserted and coupled to the ratchet adjustment spring zone third perforation portion 22 'and the governor wheel housing second surface perforation portion 23'.

1 is a front view of an elevator governor having a vertical emergency stop device according to the present invention, Figure 2 is a rear view of an elevator governor having a vertical emergency stop device according to the present invention, Figure 5 is a vertical up and down bidirectional according to the present invention 6 is a plan view of an elevator governor having an emergency stop device, and FIG. 6 is a side view of an elevator governor having an upward and downward bidirectional emergency stop device according to the present invention.                     

1, 2, 5, and 6, when the descending speed of the elevator cage reaches 130% of the rated speed, the pendulum 39 coupled to the pendulum hinge shaft 40 is centrifugal force The square bolt 41 formed in the pendulum 39 is operated by the power interrupter 25 to stop the power supply, and sequentially the speed of the elevator cage reaches 140% of the rated speed, or When the cage is abnormally operated due to abrasion of the brake lining or a failure of the safety switch, the pendulum 39 is further opened by centrifugal force to operate the first lever 9 so that the first stop chain 7 is interlocked. The first ratchet 12 is stopped, and at the same time the first ratchet 12 is stopped and the ratchet adjuster 14 coupled to the first ratchet 12 brakes the first ratchet 12. The first rope catcher 20 has the governor By stopping the rope, the elevator cage is stopped, and even when the elevator cage is raised, when the ascending speed reaches 130% of the rated speed, the pendulum coupled to the pendulum hinge shaft 40 in the same manner as when the elevator cage is lowered 39 is opened by the centrifugal force and the square bolt 41 formed in the pendulum 39 operates the power interrupter 25 to stop the power supply, and wear of the brake lining despite the interruption of the power supply. Alternatively, when the hoisting wheel is rotated by the elevator cage operating due to a failure of the safety switch, the solenoid switch 26 is operated to operate the second lever 9 'to generate an electrical signal to operate the second lever 9'. The second stop chain (7 ') which is operated in conjunction with the operation stops the second ratchet (12'), the second ratchet (12 ') Is stopped and the ratchet adjuster 14 'coupled to the second ratchet 12' brakes to the second ratchet 12 'so that the second rope catcher 20' stops the governor rope. The elevator cage is stopped.

In the governor according to the present invention, the lever, the detent and the ratchet are symmetrically formed on both sides of the governor wheel, and the solenoid switch is attached to either side of the governor wheel, so that the elevator cage is 140% of the rated speed in the up or down direction. When the elevator cage stops abnormally in the ascending direction as well as when the brake cage is worn or the brake lining is worn out or the safety switch is broken, the effect of the double safety device on both sides of the elevator is abnormal. To provide.

Claims (1)

Governor wheel 6; Pendulums (29) and (39) located on either side of the governor wheel (6) and operated by centrifugal force during overspeed rotation of the governor wheel (6); A first lever 9 actuated by the operation of the pendulums 29 and 39; A first stop chain (7) interlocked by the first lever (9); A first ratchet 12 whose rotation is stopped by engagement with the first stop chain 7; A first rope catcher (20) integrally connected to the first stop chain (7) to hold the governor wheel rope when the first stop chain (7) is coupled to the first ratchet (12); And A solenoid switch 26 positioned on the other side of the governor wheel 6 and operated by an electrical signal generated when the hoisting wheel rotates when the power supply of the hoisting motor is stopped; A second lever 9 'operated by the operation of the solenoid switch 26; A second stopper (7 ') interlocked by the second lever (9'); A second ratchet 12 'whose rotation is stopped by engagement with the second stop chain 7'; A second rope catcher 20 'which is integrally connected to the second stop chain 7' and which holds the governor wheel rope when the second stop chain 7 'engages with the second ratchet 12'. Elevator governor having an upper and lower two-way emergency stop device comprising a.

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