KR20170029806A - Governor for elevator - Google Patents

Governor for elevator Download PDF

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Publication number
KR20170029806A
KR20170029806A KR1020150126859A KR20150126859A KR20170029806A KR 20170029806 A KR20170029806 A KR 20170029806A KR 1020150126859 A KR1020150126859 A KR 1020150126859A KR 20150126859 A KR20150126859 A KR 20150126859A KR 20170029806 A KR20170029806 A KR 20170029806A
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KR
South Korea
Prior art keywords
governor
sheave
elevator
car
elevator car
Prior art date
Application number
KR1020150126859A
Other languages
Korean (ko)
Inventor
송영섭
Original Assignee
현대엘리베이터주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대엘리베이터주식회사 filed Critical 현대엘리베이터주식회사
Priority to KR1020150126859A priority Critical patent/KR20170029806A/en
Publication of KR20170029806A publication Critical patent/KR20170029806A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/044—Mechanical overspeed governors
    • B66B5/046—Mechanical overspeed governors of the pendulum or rocker arm type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • B66B5/18—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
    • B66B5/22—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces by means of linearly-movable wedges

Abstract

The present invention relates to an elevator speed regulator installed in an elevator car in an integrated manner. An object of the present invention is to provide the elevator speed regulator installed in an elevator car in an integrated manner, which moves upward and downward in a hoist way, together with an elevator car, and which is operated by using centrifugal force of a sheave rotated by a fastened rope, thereby optimizing a space for installation of an elevator without a machine room. For this purpose, in the elevator speed regulator installed in an elevator car in an integrated manner according to the present invention, upper and lower draw devices are installed on respective top and bottom of hoist way, a speed regulator sheave and an auxiliary sheave are adjacently disposed on an upper or lower portion of an elevator car, moving upward and downward in the hoist way, by using a predetermined frame so that the speed regulator sheave and the auxiliary sheave move upward and downward, together with the elevator car, a speed regulator rope passes the speed regulator sheave and the auxiliary sheave along a path formed in a ~ shape in a state in which one end of the speed regulator rope is fastened to the upper draw device and the other end of the speed regulator rope is fastened to the lower draw device, and the speed regulator sheave operates in conjunction with an emergency stopping means configured to perform emergency stop on the elevator car when abnormal speed of the elevator car has been detected.

Description

[0001] GOVERNOR FOR ELEVATOR [0002]

      The present invention relates to an elevator governor installed integrally with a car. More particularly, the present invention relates to an elevator governor installed integrally with an elevator car and moving up and down together with a car in a hoistway to control the governor through a centrifugal force of a sheave rotated by a fixed rope The present invention relates to a governor for an elevator installed integrally with a car.

      Generally, an elevator is a device installed in various kinds of high-rise buildings built for residential or commercial purposes, and configured to reciprocate vertically along a hoistway so as to move a passenger who has found the building to a certain destination layer according to purpose.

      The elevator is provided with a governor for an elevator to prevent the elevator from abnormally rapidly falling as well as when the rope is broken.

      FIG. 1 is a schematic view showing a configuration of a governor for a conventional elevator. The conventional governor system includes a tension sheave 2 and a weight, which are separate from the rope 3.

      That is, the governor rope 3 is installed in an annular structure passing through the governor 1 and the tension sheave 2, and is connected to the emergency stop device 6 via the link 7.

      The speed governor 1 detects the speed of the car 5 while the elevator is rotated by the rope 3 moving at the same speed as the car 5.

      The tension of the governor rope 3 is maintained by the tension sheave 2 and the weight and the rotational force of the tension sheave 2 by the rope 3 is transmitted to the weight weight And as the speed increases, the weight becomes wider outward.

      When the overspeed of the elevator car 5 occurs, the rope catch 4 is operated by the weight weight that is widened outwardly, so that the rope 3 is decelerated. In the decelerated rope 3, And the emergency stop device 7 is operated through the structure of the link 7 connected to the rope 3 and at the same time the elevator car 5 is elevated by the movement relative to the descending elevator car 5, ) Is safely stopped.

      Here, when the conventional governor system as described above is applied to a machine room-free elevator, it must be located in a separate mechanical structure in the hoistway, in which arrangement interference of the structure and the governor occurs in the arrangement of the elevator components in the hoistway The cross sectional area of the hoistway is increased more than necessary or the height of the hoistway is increased. As a result, the space efficiency of the building is lowered and the construction cost is increased.

Korean Patent Publication No. 10-2004-0029816

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide an elevator car which is installed integrally with an elevator car and moves up and down with a car in a hoistway, And to provide a governor for an elevator installed integrally with a car so as to optimize an installation space of an elevator without a machine room as the governor is operated by mediation.

In order to achieve the above object, the governor for an elevator installed integrally with a car according to the present invention is characterized in that an upper tension device and a lower tension device are installed on the ceiling and the bottom of the hoistway, respectively, The governor sheave and the auxiliary sheave are arranged side by side through a predetermined frame on the upper portion or the lower portion of the elevator car, and the elevator car is moved up and down integrally with the elevator car, and the governor rope is fixed to the upper tension device Characterized in that said governor sheave is connected to emergency stop means for emergency stopping the car when an abnormal speed of the elevator car is detected, characterized in that said governor sheave is connected to emergency stop means .

Preferably, the governor sheave is provided with a pair of weight scales extending outwardly by a centrifugal force in accordance with an increase in the speed of the elevator car, and a disk-shaped engaging portion formed concentrically with the governor sheave and having a saw- And a detent provided on one side of the locking device for selectively interlocking the locking part of the locking device.

Preferably, the upper tension device and the lower tension device are provided with compression coil springs, wherein the governor rope is maintained to have a constant tension by the tension device.

Preferably, the emergency stop means is a switch installed on one side of the governor sheave and operated when the weight is moved by the centrifugal force to block the power and operate the electromagnetic brake.

Preferably, the emergency stop means includes an emergency stop, which is connected to the lock device of the governor sheave via a link structure and is provided on the car rail side, and includes a claw that selectively presses the car by the rotational force of the lock device .

According to the present invention as described above, since the governor for detecting the abnormal overspeed of the elevator car and operating the emergency stop means is integrated with the elevator car, the effect of optimizing the installation space of the elevator without the machine room .

That is, since the governor is directly installed on the upper portion or the lower portion of the elevator car, a separate space in the hoistway for installing the governor is not needed, and the optimum cross-sectional area of the hoistway can be realized while eliminating the arrangement interference problem between the elevator components .

1 is a view schematically showing the configuration of a conventional governor for an elevator,
2 is a view schematically showing a configuration of a governor for an elevator installed integrally with a car according to an embodiment of the present invention;
3 is a view showing the configuration and operation state of an governor for an elevator installed integrally with a car according to an embodiment of the present invention.

      Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

[0001] The present invention relates to an elevator governor for an elevator, and more particularly, to an elevator governor for elevators installed in an integrated manner with a car according to an embodiment of the present invention. Fig.

      First, the speed governor for an elevator installed integrally with a car according to the present invention is installed integrally with an elevator car 100 and moves up and down together with a car in a hoistway 200 to adjust the centrifugal force of a sheave rotated by a fixed rope And the emergency stop means is operated while the governor is operated as an intermediary.

      The governor is configured to operate the overspeed switch in the primary operation to shut off the power supply and operate the electromagnetic brake when the speed of the elevator car 100 exceeds the rated speed and reaches the overspeed detection rate (OVERSPEED) The emergency stop device is configured to operate in a secondary mechanical manner when the acceleration is advanced to the operating speed (TRIPPING SPEED) without deceleration by the above-described primary operation.

      To this end, the governor for an elevator installed integrally with a car according to the present invention includes an upper tension device 10 and a lower tension device 20 at the ceiling and bottom of a hoistway 200 formed along a vertical direction inside a building And a governor sheave 40 and an auxiliary sheave 50 are installed side by side with a predetermined frame 80 on the upper or lower portion of the elevator car 100 moving up and down in the hoistway 200 , And the governor is moved upward and downward together with the car when the elevator car (100) is moved.

      One end of the governor rope 30 is fixed to the upper tension device 10 and the other end of the governor sheave 40 and the auxiliary sheave 50 are connected to each other in a substantially & And is configured to be fixed to the lower tension device 20.

      At this time, the upper tension device 10 and the lower tension device 20 are provided with compression coil springs 12 and 22, respectively, and the governor rope 30 is wound around the compression coils 12, So that a constant tension can be maintained through the springs 12 and 22. [

      A pair of weights having a structure that is opened outward due to the centrifugal force in accordance with an increase in the speed of the elevator car 100 is provided in the governor sheave 40 provided above or below the elevator car 100 via the frame 80, A locking device 44 which is formed in a substantially disc shape and is concentric with the governor sheave 40 and has a serrated engaging portion 46 formed on the outer circumferential surface of the locking device 44; And a detent (48) installed on one side in a rotatable structure for selectively interlocking the locking part (46) of the locking device (44).

The governor sheave 40 is configured in association with the primary emergency stop means and the secondary emergency stop means for stopping the car in an emergency when the abnormal speed of the elevator car 100 is detected.

The primary emergency stop means includes a switch 60 installed at one side of the governor sheave 40 and operating according to the movement of the weight 42 due to the centrifugal force while cutting off the power and operating the electromagnetic brake.

The emergency stop device 70 includes a claw 72 for applying an external force to the car 110. The claw 72 is connected to the car 110 via a link 72, And the lock device 44 is connected to the lock device 44 of the governor sheave 40 through a structure of the lock device 74 so that the lock device 72 selectively presses the car rail 110 So that the forced deceleration of the elevator car 100 at the overspeed is achieved.

Here, in the speed governor applied according to the embodiment of the present invention, the configuration of the governor sheave 40 including the weight 24, the lock device 44 and the detent 48, The configuration of the emergency stop device 70 including the claw 72 for pressing the door 110 is well known in the related art and will not be described in detail.

Next, the operation of the present invention as described above will be described in detail with reference to the drawings.

      The speed governor for an elevator installed integrally with a car according to an embodiment of the present invention includes a governor sheave 40 and an auxiliary sheave 50 via a frame 80 at a lower portion of the elevator car 100, And the governor rope 30 having both ends fixed to the upper tension device 10 and the lower tension device 20 provided in the upper and lower parts of the hoistway 200 is formed in a substantially " Through the governor sheave (40) and the auxiliary sheave (50).

      At this time, the governor rope 30 is maintained at a constant tensile force by the compression coil springs 12 and 22 provided respectively in the upper tension device 10 and the lower tension device 20, The slip between the governor sheave 40 and the governor sheave 40 can be prevented.

      The governor installed integrally with the elevator car 100 moves upward and downward with the car in the hoistway 200. The governor sheave 40 is rotated by the governor rope 30 to adjust the speed of the car .

      In addition, the governor rope 30 rotates the governor sheave 40 at a linear velocity of the same magnitude as a relative movement with respect to the moving elevator car 100.

      3, when the elevator car 100 descends, the governor sheave 40 rotates in a counterclockwise direction and the auxiliary sheave 50 rotates in a clockwise direction .

      The rotational force of the governor sheave 40 acts as a centrifugal force on the weight 42 formed on the rotating surface of the sheave, and the weight 42 is spread toward the outer circumferential surface as the rotational speed increases.

      When the speed of the elevator car 100 exceeds the rated speed and reaches a preset overspeed sensing speed, the weight 42, which is opened toward the outer circumferential surface by the centrifugal force of the speed, In switch 60, whereby the power supply is cut off and the electromagnetic brake is activated.

      The primary operation is possible both in the upward and downward directions of the elevator car 100.

      On the other hand, even when the elevator car 100 is not decelerated by the primary operation as described above, when the accelerator is accelerated and reaches a preset operating speed, the governor operates secondarily and the outer side So that the weight 42 is further pulled toward the locking device 44 to apply an external force so that the detent 48 interrupting the locking part 46 of the locking device 44 is released.

      As the detent 48 is released and the lock mechanism 44 having the form of a toothed wheel is interrupted and the locking device 44 is positioned concentrically with the governor sheave 40, The rotation of the governor sheave 40 is performed in the same rotation direction as that of the governor sheave 40. [

      Since the locking device 44 of the governor sheave 40 is connected to the claw 72 of the emergency stop device 70 via the link 74 structure, the rotational force of the governor sheave 40 is transmitted to the locking device 44 acting as a force to actuate the emergency stop device 70 via the intermediary of the emergency stop device 70.

      That is, as the lock device 44 is rotated by the rotational force of the governor sheave 40, the staple 74 of the emergency stop device 70 moves in the upward direction to press the outer surface of the car 110 And the elevator car 100 can be safely stopped by the forced deceleration by the mechanical method.

      At this time, the secondary operation is performed only in the descending direction of the elevator.

      It should be understood, however, that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

10: upper tensioning device, 12,22: compression coil spring,
20: bottom tensioning device, 30: governor rope,
40: governor sheave, 42: weight,
44: locking device, 46: latching part,
48: detent, 50: auxiliary sheave,
60: switch, 70: emergency stop device,
72: staple, 74: link,
80: frame, 100: elevator car,
110: car rail, 200: hoistway.

Claims (5)

An upper tensioning device and a lower tensioning device are respectively installed on the ceiling and bottom of the hoistway,
A governor sheave and an auxiliary sheave are arranged side by side through a predetermined frame on an upper portion or a lower portion of the elevator car moving up and down along the hoistway so as to be moved up and down together with the elevator car,
The governor rope passes through the governor sheave and the auxiliary sheave in the form of "~" with one end thereof fixed to the upper tension device, and the other end thereof is fixed to the lower tension device,
Wherein said governor sheave is connected to emergency stop means for stopping the car in emergency when an abnormal speed of the elevator car is detected. The method according to claim 1,
In the governor sheave,
A pair of weights extending outward due to the centrifugal force in accordance with an increase in the speed of the elevator car,
A locking device formed in a disk shape and provided concentrically with the governor sheave and having an engaging portion formed in a serrate shape on an outer circumferential surface thereof,
And a detent provided on one side of the locking device for selectively interlocking the locking part of the locking device. The governor for an elevator integrated with a car as claimed in claim 1, The method according to claim 1,
Wherein the upper tension device and the lower tension device are provided with compression coil springs, and the governor rope is maintained to have a constant tension by the tension device. The method according to claim 1,
Wherein said emergency stop means comprises:
Wherein the governor is a switch installed on one side of the governor sheave and operated when the weight is moved by the centrifugal force to block the power and operate the electromagnetic brake.
The method according to claim 1,
Wherein said emergency stop means comprises:
And an emergency stop device connected to the lock device of the governor sheave via a link structure and provided on the car rail side and configured to selectively press the car by a rotational force of the lock device. Governor for installed elevator.
KR1020150126859A 2015-09-08 2015-09-08 Governor for elevator KR20170029806A (en)

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KR1020150126859A KR20170029806A (en) 2015-09-08 2015-09-08 Governor for elevator

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KR1020150126859A KR20170029806A (en) 2015-09-08 2015-09-08 Governor for elevator

Publications (1)

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KR20170029806A true KR20170029806A (en) 2017-03-16

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040029816A (en) 2002-10-02 2004-04-08 신석희 A governor of elevator apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040029816A (en) 2002-10-02 2004-04-08 신석희 A governor of elevator apparatus

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