KR20170052812A - Trip apparatus for elevator governor - Google Patents

Trip apparatus for elevator governor Download PDF

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Publication number
KR20170052812A
KR20170052812A KR1020150154651A KR20150154651A KR20170052812A KR 20170052812 A KR20170052812 A KR 20170052812A KR 1020150154651 A KR1020150154651 A KR 1020150154651A KR 20150154651 A KR20150154651 A KR 20150154651A KR 20170052812 A KR20170052812 A KR 20170052812A
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KR
South Korea
Prior art keywords
governor
latch
wheel
main wheel
guide
Prior art date
Application number
KR1020150154651A
Other languages
Korean (ko)
Inventor
조금용
이종석
김진희
Original Assignee
(주)서광
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 (주)서광 filed Critical (주)서광
Priority to KR1020150154651A priority Critical patent/KR20170052812A/en
Publication of KR20170052812A publication Critical patent/KR20170052812A/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
    • B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
    • 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
    • B66B5/185—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 acting on main ropes or main cables

Abstract

The present invention relates to a remote device for forcibly actuating a governor. The present invention is formed on a governor. The governor includes: a main wheel (120) in which a governor rope (Rg) is installed; a latch wheel (130) which is selectively interlocked with the main wheel (120) and drives a rope braking member (140); a latch pawl (122) which is installed on the main wheel (120) and makes the latch wheel be interlocked with the main wheel (120) by being engaged with a tooth formed on the latch wheel (130) when the latch pawl is released; a centrifugal weight (121) which rotates according to the over speed of the main wheel (120) to release the latch pawl (122); and a return spring (129) which provides a restoring force to the centrifugal weight (121). The remote device for forcibly actuating a governor includes a guide (218) for forcibly rotating the centrifugal weight (121) in accordance with the rotation of the main wheel (120) while the latch pawl (122) is locked. When the centrifugal weight (121) is forcibly rotated and the latch pawl (122) is released, the latch wheel (130) is interlocked with the main wheel (120) and the governor is operated. As a result, the rope braking member (140) can stop the governor rope (Rg) by pressing the governor rope (Rg).

Description

[0001] The present invention relates to a trip apparatus for an elevator governor,

In particular, the present invention relates to a governor, and more particularly, to a governor capable of automatically controlling a latch pawl in a locked state to release a locked state so that the latch wheel can be interlocked with the main wheel, and as a result the rope braking member can stop To the remote force governor operating device.

Generally, an elevator is installed in a high-rise building. As shown in FIG. 1, the elevator basically includes an elevator 3 ascending and descending along a guide rail 2 of a hoistway 1, A balancer 4 that keeps the balancer 5 in balance and a balancer 4 that lifts up and raises the elevator 3 by connecting and winding the main rope Rm to the elevator 3 and an electric motor 6 that drives the hoist 5, , A braking mechanism for stopping the elevator (3), and a control panel (7).

The braking mechanism includes a traction machine brake for stopping the rotation of the traction machine 5, an emergency brake 8 provided on the outside of the elevator 3 and in frictional contact with the guide rail 2, An emergency brake operation lever 8a that cuts off the electric power of the electric motor 6 at the time of overspeed and operates the brake of the hoist 5 and operates the emergency brake 8, a governor rope 8a connected to the emergency brake actuator lever 8a, (Rg), and a governor (9) for controlling the governor rope (Rg).

In normal operation of the elevator, the elevator (3) performs a stop operation by operating the electric motor (6) and the traction machine brake by operation of the control panel of the user. On the other hand, when the power of the electric motor 6 is cut off by the overspeed switch of the governor 9 when the elevator 3 is in abnormal overspeed and the traction brake is operated and the traction brake is not operated for some reason, The emergency brake 8 is operated by the operation of the emergency brake operating lever 8a.

On the other hand, the general configuration of the governor 9 can be seen in the publication of Utility Model Registration Application No. 20-2000-0032031 (November 16, 2000) "Governor of elevator". Hereinafter, the configuration of a general governor 9 will be described with reference to Figs.

The governor 9 includes a governor rope Rg connected to the emergency brake 8 and a main wheel 120 which is rotatably coupled to the governor frame 110 to wind the governor rope Rg, A stopper 123 that rotates together with the centrifugal weight 121 when the centrifugal weight 121 rotates, a state in which rotation is prevented by the stopper 123, A ratchet pawl 122 that rotates when the centrifugal weight 121 is rotated when the centrifugal weight 121 rotates and a ratchet pawl 122 that rotates when the centrifugal weight 121 rotates and a latch wheel 122 that rotates axially while interlocking with the main wheel 120 by the latch pawl 122 a ratchet wheel 130 which rotates together with the latch wheel 130 and a rope braking member 140 which rotates integrally with the governor rope Rg in a frictional contact state and a touch lever integrally rotating with the latch wheel 130, 151 and an overspeed switch 150 operated by the touch lever 151.

According to the above configuration, when the speed of the elevator 3 abnormally increases and the moving speed of the governor rope Rg increases along with the main rope Rm, the rotational speed of the main wheel 120 increases. At this time, The centrifugal weight 121 is rotated by the centrifugal force, the stopper 123 is rotated, and the lock state of the latch pawl 122 is released. The unlocked latch pawl 122 is pivoted toward the latch wheel 130, and as a result, it is caught by the teeth formed on the latch wheel 130.

Accordingly, the latch wheel 130 rotates as the main wheel 120. In this state, the touch lever 151 rotates together with the latch wheel 130 to operate the overspeed switch 150, and the overspeed switch The power of the motor 6 is cut off and the brake of the hoisting machine 5 is operated and the hoisting machine 3 is stopped.

At the same time, the rope braking member 140 presses and stops the governor rope Rg. The rope braking member 140 is an emergency control means for operating the emergency brake device 8 during abnormal operation of the electric motor 6 and the traction machine brake 5 and is connected to the latch wheel 130 via a link 141 And is rotated by the rotation of the latch wheel 130 and is in frictional contact with the governor rope Rg. The operation of the latch wheel 130 causes the rope braking member 140 to come into frictional contact with the governor rope Rg to stop the governor rope Rg to operate the emergency brake 8.

As described above, the governor 9 operated by detecting an emergency situation should be normalized to its original state after the problem is solved. To this end, the latch pawl 122 caught by the teeth of the latch wheel 130 is returned to its original position. The latch pawl 122 is rotated to return to the original state of the stopper 123.

After the problem has been solved as described above, even if the latch ring 122 is returned to the home position and the main wheel 120 is operated, the existing problem is not solved or another problem occurs, There may be cases where it is confirmed that operation is impossible. In this case, the problem is solved in a state where the operation of the elevator 3 is stopped by actuating the governor again. As a result, the latch pawl 122 is hooked on the tooth of the latch wheel 130 again and the rope braking member 140, It is necessary to stop and press the governor rope Rg. However, in the related art, work is progressing in such a manner that the worker directly releases the lock state of the latch pawl 122, which is quite inconvenient.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a force control device for automatically controlling a latch pawl in a locked state to release a locked state to actuate the governor and consequently to allow the rope braking member to press and stop the governor rope So as to obtain a governor operation device.

The present invention proposes a forced governor operating device for operating a governor by releasing the locked state of the latch paw while being remotely operated in a necessary situation.

According to the present invention, it is possible to stop the governor rope by forcibly operating the governor in a necessary situation, thereby improving the convenience of maintenance for the elevator.

Figure 1 is an illustration showing a typical elevator system,
FIG. 2 is an exemplary diagram showing a configuration of a general governor;
3 is an exemplary view showing a schematic configuration of a governor provided with a trip device according to the present invention;
Fig. 4 is a plan view of Fig. 3,
FIGS. 5 to 7 are operational views showing the operation of the trip device according to the present invention. FIG.
8 is an exemplary view showing an operation of a trip device according to another embodiment of the present invention;

According to the present invention, a governor operating device is provided which allows the latch wheel to be interlocked with the main wheel by releasing the locked state by automatically controlling the latch pawl in the locked state, and consequently, the rope braking member can be pushed and stopped by the governor rope To achieve this,

A latch wheel that is selectively coupled to the main wheel to drive the rope braking member; a latch installed on the main wheel to be engaged with the teeth formed on the latch wheel when the lock state is released, so that the latch wheel is interlocked with the main wheel; A governor including a pawl, a centrifugal weight that rotates in accordance with an overspeed of the main wheel to release a locked state of the latch pawl, and a return spring that provides a restoring force to the centrifugal weight,

And a guide for forcibly rotating the centrifugal weights in accordance with the rotation of the main wheel when the latch pawls are locked. When the lock state of the latch pawls is released by rotating the centrifugal force forcibly, the latch wheel is interlocked with the main wheel, So that the rope braking member can be pushed and stopped by the governor rope.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings 2 to 8.

First, the basic structure of the governor 9 will be described.

2, the speed governor 9 to which the present invention is applied is coupled to the governor frame 110 so as to be rotatable about its axis. A governor rope Rg is installed to wind the governor rope Rg. A centrifugal weight 121 rotating by the centrifugal force generated by the rotation of the main wheel 120, a stopper 123 rotating together with the centrifugal weight 121 when the centrifugal weight 121 rotates, When the centrifugal weight 121 rotates, the lock state is canceled and the latch pawl 122 and the latch pawl 122 are rotated together with the main wheel 120 by the rotation of the shaft 122 A rope braking member 140 that rotates integrally with the latch wheel 130 and makes frictional contact with the governor rope Rg, a touch lever 151 that rotates integrally with the latch wheel 130, And an overspeed switch 150 operated by the touch lever 151.

The centrifugal weight 121 is axially fixed to the inside of the main wheel 120, and is formed at a symmetrical position with respect to the pair of the centrifugal weights 121 and connected to each other by a connecting link 126. When the main wheel 120 is not rotated at an overspeed, the restoring force is restored to its original position. In addition, when the main wheel 120 rotates at an overspeed, It is possible to maintain the state where the rotation is prevented.

The latch pawl 122 is fixed to the main wheel 120 and locked to the stopper 123 fixed to the main wheel 120 in the same manner. When the stopper 123 is caught by the latch pawl 122, the stopper 123 is locked in a state in which rotation is prevented. The stopper 123 is operated by a centrifugal weight 121 that rotates according to overspeed of the main wheel 120. When the centrifugal weight 121 rotates, the end of the connection link 126 hits the stopper 123 And as a result, the lock state of the latch pawl 124 is released as the stopper 123 is released from the latch pawl 122. The latch pawl 122 and the stopper 123 are formed so as to be resiliently returned to the home position by the spring device.

The latch wheel 130 has a disk shape smaller than that of the main wheel 120 and has teeth formed along the outer periphery thereof and is fixed to the main wheel 120. When the latch pawl 122 is released from the locked state and is caught by the teeth formed on the latch wheel 130, the latch wheel 130 rotates together with the main wheel 120 to rotate.

The rope braking member 140 is connected to the latch wheel 130 by a link 141 and is pulled by the rotation of the latch wheel 130 to make frictional contact with the governor rope Rg. It acts like a brake.

When the speed of the governor rope Rg increases, the rotation speed of the main wheel 120 increases. At this time, the centrifugal weight 121 rotates due to the centrifugal force, The stopper 123 is pushed and the stopper 123 is released from the latch pawl 122 and the latch pawl 124 is released from the locked state. The latch pawl 122 thus unlocked is pivoted toward the latch wheel 130 and caught by the teeth formed on the latch wheel 130. [ The latch wheel 130 rotates as the main wheel 120 and the rope braking member 140 is pulled toward the governor rope Rg and stops by pressing the governor rope Rg. At the same time, the touch lever 151, which rotates integrally with the latch wheel 130, touches the overspeed switch 150 to shut off the power.

The basic structure of the governor 9 is as described above with reference to Figs. 1 and 2, in which the general structure and the operation mechanism are not greatly different from the known structure.

In the present invention, a trip device is provided as a device capable of forcibly operating the governor 9 as described above. 3 to 7, the trip device forcibly rotates the centrifugal weight 121 in accordance with the rotation of the main wheel 120 when the latch pawl 122 is locked. The centrifugal weight 121 is returned to its original position by a return spring 129, and this centrifugal weight 121 is forcibly rotated. And a guide 218 for forcibly rotating the centrifugal weight 121 for this purpose.

The guide 218 is formed at a position spaced apart from the main wheel 120 by a predetermined distance in the lateral direction of the main wheel 120, and is formed to advance and retreat. So that the centrifugal weight 121 can be forcibly rotated by advancing in a necessary situation.

Rotation of the centrifugal weight 121 can be achieved by pressing the return spring 129. The guide 218 advances in a necessary situation and selectively presses the return spring 129. The return spring 129 is fixed to a support rod 128 having one end fixed to the inside of the main wheel 120 and the other end fixed to the centrifugal weight 121, When the end of the support rod 128 is pressed against the guide 218 as the main wheel 120 rotates, the return spring 129 is naturally compressed and contracted. And, the centrifugal weight 121 is naturally rotated.

When the centrifugal weight 121 rotates, the end of the connecting link 126 connecting the centrifugal weight 121 is pushed toward the outer periphery of the main wheel 120, and the stopper 123 is struck. As a result, the lock state of the latch pawl 124 is released as the stopper 123 is released from the latch pawl 122. Then, the latch pawl 124 is caught by the teeth formed on the latch wheel 130, so that the main wheel 120 and the latch wheel 130 rotate together. Accordingly, the rope braking member 140 is pulled to urge the outer periphery of the main wheel 120, so that the governor rope is pushed and the progress of the governor rope is stopped and the rotation of the main wheel 120 is also stopped.

On the other hand, the guide 218 is formed with an arc surface or an inclined surface in order to press the end of the support rod 128 smoothly. Preferably, an arc surface is formed, and the guide 218 is formed in a disk shape. The arc surface is an arc-shaped surface along the direction in which the support rod 128 advances when the main wheel 120 rotates in a direction in contact with the end of the support rod 128. As the support rods 128 are formed in an arcuate shape, the support rod 128 proceeds along the arc surface to naturally increase the degree of pressing until reaching the maximum convex point. This configuration is also a configuration that enables the support rod 128 to enter the guide 218 in the opposite direction.

In addition, a bundle of a predetermined shape may be formed at the end of the support rod 128 so as to smoothly contact with the guide 218 to correspond to the guide. The contact area and the strength are increased so that the pressing can be performed smoothly. The surface of the bundle contacting the guide 218 may have an arcuate shape.

The guide 218 according to the present invention described above is formed so as to move forward and backward by a solenoid 210 that is operated remotely. The solenoid 210 is installed outside the governor frame 110 and is operated by an external signal. Therefore, the operator does not have to manually operate the latch pawl 122 in a necessary situation.

The solenoid 210 extends through the governor frame 110 by the guide base 220. A guide 218 is formed at an end thereof. In this case, the guide base 220 has a polygonal cross section and a polygonal hole is formed in the governor frame 110 so that the guide base 220 penetrates the guide base 220. When the guide 218 presses the end of the support bar 128 It is possible to prevent rotation. Thereby helping the guide 218 to more reliably press the support rod 128.

Hereinafter, the operation of the trip device according to the present invention will be described with reference to FIGS. 5 to 7. FIG.

The governor detects the emergency situation and returns to its original state after the problem is solved. The latch pawl 122 caught by the teeth of the latch wheel 130 is returned to its original position to be caught by the stopper 123. [ As a result, the rope braking member 140, which presses the outer circumference of the main wheel 120 and presses the governor rope, returns to its original position and the main wheel 120 can rotate.

In this state, if it is ascertained that the existing problem is not solved or another problem occurs and normal operation of the elevator is impossible, the operation of the elevator is stopped through the trip device according to the present invention.

That is, the main wheel 120 rotates while the guide 218 is advanced toward the main wheel 120. When the main wheel 120 rotates, the end of the support bar 128 comes into contact with the guide 218, When the support rod 128 is advanced and pressed along the arc surface, the return spring 129 is pressed and the centrifugal weight 121 rotates.

When the centrifugal weight 121 rotates as described above, the end of the connection link 126 connecting the pair of centrifugal weights 121 is pushed toward the outer periphery of the main wheel 120, and the stopper 123 is struck. As a result, the stopper 123 is released from the latch pawl 122 to release the latch pawl 124 from its locked state, and the unlocked latch pawl 124 is pivoted to the tooth formed on the latch wheel 130 It gets caught.

When the main wheel 120 continues to rotate in the above state, the rope braking member 140 is pulled by the latch wheel 130 to urge the governor rope. When the governor rope and the rope braking member 140 The rotation of the main wheel 120 is stopped and the governor rope is stopped and the elevator stops operating. In this state, after the maintenance work is safely performed, the latch pawl 122 is returned to its original position, and the operation is completed.

Hereinafter, another embodiment of the trip device according to the present invention will be described with reference to FIG.

As shown in the drawing, the trip device according to the present invention can be configured to press the connecting link 126 connecting the centrifugal weights 121 having the pair of guides 218 to each other. The other end of the connection link 126 is connected to the guide 218 by the rotation of the centrifugal weight 121 and the other end of the connection link 126 hits the stopper 123 to release the lock of the latch pawl 124. [ So that they are pressed against each other.

In the above configuration, it is preferable that the connection link 126 is formed in a circular arc shape in contact with the guide 218 at the other end so as to be stably pressed along the guide 218.

According to the present invention as described above, it is possible to stop the rotation of the main wheel 120 by stopping the operation of the governor by only operating the guide 218 at any time, and in particular, the elevator can be stopped through the solenoid 210, 218), it is possible to remotely perform related work, thereby improving the convenience of maintenance.

9: Governor, 120: Bicycle,
121: centrifugal weight, 122: latch pole,
123: stopper, 126: connecting link,
128: support rod, 129: return spring,
130: latch wheel, 140: rope braking member,
150: Over speed switch,
210: Solenoid, 220: Guide stand
218: Guide.

Claims (6)

A latch wheel 130 for driving the rope braking member 140 selectively coupled to the main wheel 120 and a latch wheel 130 installed on the main wheel 120 so that the lock state is released A latch pawl 122 which is engaged with the teeth formed on the latch wheel 130 to cause the latch wheel 130 to interlock with the main wheel 120, A governor including a centrifugal weight 121 for releasing the locked state and a return spring 129 for providing a restoring force to the centrifugal weight 121,
And a guide (218) for forcibly rotating the centrifugal weight (121) in accordance with rotation of the main wheel (120) while the latch pawl (122) is locked,
When the centrifugal weight 121 is forcibly rotated and the lock state of the latch pawl 122 is released, the latch wheel 130 is interlocked with the main wheel 120 and the governor is operated so that the rope braking member 140 rotates the governor rope Rg ) To be able to stop the operation of the remote forcible governor. The method according to claim 1,
Wherein the guide (218) is forked backward by a solenoid (210) operated remotely, and forcibly rotates the centrifugal weight (121). The method according to claim 1,
The return spring 129 is supported by a support rod 128 having an end fixed to the centrifugal weight 121 and the other end fixed to the inside of the main wheel 120,
The distal end portion of the support rod 128 contacts the guide 218 and the return spring 129 is contracted to rotate the centrifugal weight 121. [ The method according to claim 1,
The pair of centrifugal weights 121 are formed symmetrically with each other and connected to each other by a connection link 126 while receiving a restoring force by the return spring 129,
And the distal end of the connecting link (126) is urged in contact with the guide (218) to forcibly rotate the centrifugal weight (121). The method according to claim 3 or 4,
The guide 218 is formed with an arc surface formed in a convex circular arc shape toward the center of the main wheel 120 along the rotation direction of the main wheel 120 and a portion to be pressed is pressed and advanced along the arc surface, Operating device. 3. The method of claim 2,
The solenoid 210 is installed outside the governor frame 110 and the guide bar 220 extends through the governor frame 110 and a guide 218 is formed at the end of the governor frame 110,
The guide base 220 has a polygonal cross section and a polygonal hole through which the guide base 220 passes is formed in the governor frame 110 to limit the rotation of the guide base 220. [ .

KR1020150154651A 2015-11-04 2015-11-04 Trip apparatus for elevator governor KR20170052812A (en)

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KR1020150154651A KR20170052812A (en) 2015-11-04 2015-11-04 Trip apparatus for elevator governor

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KR1020150154651A KR20170052812A (en) 2015-11-04 2015-11-04 Trip apparatus for elevator governor

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110271934A (en) * 2018-03-15 2019-09-24 杭州沪宁电梯部件股份有限公司 A kind of rope sheave anti-interference mechanism
KR102232438B1 (en) 2020-07-14 2021-03-26 (주)나모 Card payment system for local voucher utilization and regional economy activation and Method of the Same
US11591185B2 (en) 2018-10-09 2023-02-28 Otis Elevator Company Remote triggering device, overspeed governor assembly and elevator system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110271934A (en) * 2018-03-15 2019-09-24 杭州沪宁电梯部件股份有限公司 A kind of rope sheave anti-interference mechanism
CN110271934B (en) * 2018-03-15 2024-02-02 杭州沪宁电梯部件股份有限公司 Rope sheave anti-interference mechanism
US11591185B2 (en) 2018-10-09 2023-02-28 Otis Elevator Company Remote triggering device, overspeed governor assembly and elevator system
KR102232438B1 (en) 2020-07-14 2021-03-26 (주)나모 Card payment system for local voucher utilization and regional economy activation and Method of the Same

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