KR100382973B1 - Governor of elevator - Google Patents

Abstract

The present invention relates to a governor of an elevator, which not only enables emergency stop when the platform speeds downward, but also enables emergency stop even when the platform speeds upward, while the platform is opened at the platform. It is to provide an elevator governor to improve the safety of passengers or cargo by making emergency stop even when it is out of the designated area up and down.

The governor of the elevator according to the present invention is provided with a plurality of pendulums 130 that are moved outward by centrifugal force when the main wheels 120 are speeded over a predetermined speed, and installed on one side of the main wheels so as to be in contact with the pendulums 130. A first trip lever 140 to be rotated, a first stop member 150 rotatably coupled to the main wheel 120 so that the first trip lever 140 rotates in association with the first trip lever 140, and rotates to a central shaft on one side of the main wheel. On the other side of the first ratchet 160 which is restrained by the main wheel and the first end 172 is connected to the first ratchet 160 when the first stop member 150 is engaged with the freely installed state. Rope catcher 178 including a shoe is rotatably coupled to the frame and the first rope fixing body 170 configured to apply an external force to the rope catcher to the outside and the main ring 120, It is installed to be opposite to the first trip lever 140 on the other side of the A second trip lever 180, a second stop member 190 rotatably coupled to the main wheel so as to rotate in conjunction with the second trip lever, and a state installed rotatably on the other central axis of the main wheel 122 When the second stop member 190 is engaged with the second ratchet 200 is restrained by the main wheel, and the other side of the second link 172 'that one end is connected to the second ratchet 200 includes a shoe The rope catcher 178 is rotatably coupled to the frame, and the second rope fixing body 170 ′ having an external force applying member 176 configured to apply an external force to the rope catcher is provided on the outside thereof. The main wheel restraint device 300 and the main wheel restraint device 300 which are connected to and restrained on the main wheel when a detection signal is applied from the sensing unit that detects the departure of the designated area of the platform in the open state in the up and down directions. ) Is coupled to the top and the bottom of the main wheel 120 The rope is pulled by the first link 172 or the second link 172 'in accordance with the rotational direction of the main wheel while being interlocked with the main wheel restraining device 300 constrained to the main wheel 120 to be rotatable on both sides of the mandrel. Link constraining member 400 is configured to be configured to effect the restraint.

Description

Governor of elevator {GOVERNOR OF ELEVATOR}

The present invention relates to a governor of an elevator, and more particularly, the elevator is installed in a machine room of an elevator, and is operated when the platform is abnormally speeded up so that the safety platform such as falling of passengers and cargo is prevented by emergency stop of the platform. It's about the governor.

In general, elevators are equipped with an overspeed governor to prevent when the rope breaks, as well as when the platform is lowered abnormally quickly. Such a governor is usually installed in the machine room and connected to the platform. Rope "is wound around the governor's main wheel, and when the speed of the platform rises abnormally, the pendulum of the governor's main wheel opens outwards by centrifugal force and operates the speed switch to cut off the electric motor power of the hoist. At the same time, the platform is stopped by operating the brake of the winch.

However, if the lifter brake is broken or the rope is broken, the platform cannot be stopped.When the speed exceeds 1.3 times, the pendulum of the governor's main wheel is opened again and the rope catcher is pulled to pull the rope catcher. Is fixed, so emergency stop is possible.

However, the above-described conventional governor is to prevent the fall of the platform by operating the governor only when the platform is freely falling in the downward direction or overspeeding in the downward direction due to the cutting of the rope. In case of overspeed, there is no separate safety device except the switch that cuts off the main power.Therefore, there is a problem for passenger safety during ascending, and if the rope slips over the brake of the elevator hoist or the pulley of the hoist. There was a problem that caused the safety accident because the platform does not have a function to stop the platform by detecting when the platform moves up and down with the door open at the platform.

The present invention is to solve the above problems, the object of the elevator not only to enable the emergency stop when the platform speeding in the downward direction, but also the governor of the elevator to enable an emergency stop even when the platform is speeding upwards Is to provide.

Another object of the present invention is to provide an elevator governor so that the safety of passengers or cargo can be improved by allowing the platform to make an emergency stop even if it leaves the designated area in the vertical direction with the door open at the platform.

In order to achieve the above object, the present invention provides a plurality of pendulums that are moved by centrifugal force when the main wheel is speeded, a first trip lever contacting and actuating the pendulum, and a first stop member pivoted in conjunction with the first trip lever. The first and second latching members engaged with the first stop member and the rope catcher including a shoe on the other side of the first link having one end connected to the first ratchet are rotatably coupled to the frame and externally applied to the rope catcher. In a governor of an elevator provided with a first rope fixing body configured to apply an external force applying member, a second trip lever, a second stop member, a second ratchet, and a second rope fixing body installed to face the other side of the main wheel. In the magnetized state, the power is cut off when the detection signal is applied from the detection unit that detects the departure of the designated area of the platform in the up and down direction while the door of the platform is open. The solenoid configured to protrude by the elastic force of the elastic member coupled to the sucked plunger, the connection member is coupled to the upper solenoid and the moving hole is formed therein, and the engaging pieces are installed at the lower end of the plunger and both sides of the lower end A main wheel restraining device including a protruding fixing member and a plurality of pin members projecting at regular intervals on the front and rear outer periphery portions of the main wheels so as to be fixed or released with the engaging pieces of the fixing members moved forward and backward by the solenoid; The upper end is coupled to the connecting member and the lower end is rotatably coupled to both sides of the central axis of the main wheel so as to be interlocked with the main wheel restraint device which is constrained to the main wheel which is overspeed, and pulls the first link or the second link along the rotational direction of the main wheel. It characterized in that it comprises a link binding member configured to effect the restraint of the rope.

According to the governor of the elevator according to the present invention, not only when the platform is freely falling in the downward direction or overspeeding above the speed specified in the downward direction due to cutting of the rope, but also the platform is above the speed defined in the upward direction. In case of overspeed, emergency stop by the overspeed governor becomes possible, while the platform is opened with the door of platform open due to brake error of elevator hoist, slipper of pulley of hoist, or safety circuit. As the governor operates even when moving, the emergency stop is possible, thereby preventing safety accidents and improving safety.

1 is a perspective view showing a governor of an elevator according to a first embodiment of the present invention,

2 is a schematic exploded perspective view showing a governor of an elevator according to a first embodiment of the present invention;

3 is a first use state diagram for explaining a use state of the governor of an elevator according to a first embodiment of the present invention;

4 is a second use state diagram for explaining a use state of the governor of the elevator according to the first embodiment of the present invention;

5 is a perspective view showing a governor of an elevator according to a second embodiment of the present invention;

6 is a schematic exploded perspective view showing a governor of an elevator according to a second embodiment of the present invention;

7 is a first use state diagram for explaining a use state of the governor of an elevator according to a second embodiment of the present invention;

8 is a second use state diagram for explaining the use state of the governor of the elevator according to the second embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

110: a frame, 120: a ring,

130: pendulum, 140: first trip lever,

150: the first stop member, 160: the first ratchet,

170: first rope fixture, 170 ': second rope fixture,

172: first link, 172 ': second link,

180: second trip lever, 190: second stop member,

200: second ratchet, 210: speed switch,

300: wheel lock, 310: solenoid,

320: connecting member, 330: fixing member,

340: pin member, 400: link member,

410: the first connection, 412, 422: incision groove,

420: Second connection portion.

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

1 is a perspective view showing a governor of an elevator according to a first embodiment of the present invention, Figure 2 is a schematic exploded perspective view showing a governor of an elevator according to a first embodiment of the present invention, Figure 3 is a First use state diagram for explaining the use state of the governor of the elevator according to the first embodiment, Figure 4 is a second use state diagram for explaining the use state of the governor of the elevator according to the first embodiment of the present invention, Parts that are not important in the description of the present invention are omitted.

The governor of the elevator according to the first embodiment of the present invention has a frame 110 formed to have a substantially rectangular parallelepiped shape as shown in FIGS. 1, 2, and 3 and a central axis 122 coupled to the frame. A main wheel 120 rotatably installed by the main wheel, a plurality of pendulums 130 formed by the centrifugal force when the main wheel is speeded above a predetermined speed, and a centrifugal force acted by the overspeed of the main wheel. The main trip ring 120 is connected to the first trip lever 140 and the first trip lever 140 to be rotated in contact with the pendulum 130 moved outward by the first trip lever 140. When the first stop member 150 is rotatably coupled to the first stop member 150 and the first stop member 150 is engaged with the first stop member 150 in a state in which it is pivotally installed on one side central axis of the main wheel, the first stop member 150 is interlocked with the main wheel. Ratchet (160, A ratchet and a rope catcher 178 including a shoe on the other side of the first link 172, one end of which is connected to the first ratchet 160, is rotatably coupled to the frame 110. Operated by the action of the first rope fixing body 170 configured with an external force applying member 176 for applying an external force to the rope catcher 178 to the outside, and the pendulum 130 which is opened by centrifugal force when the platform is abnormally speeded up. Thus, an overspeed switch 210 is configured to cut off the electric motor power of the winch (not shown) and operate the brake of the winch.

In addition, the second trip lever 180 installed on the other side of the main wheel 120 to face the first trip lever 140 and the second trip lever 180 are rotatable to the main wheel so as to rotate in connection with the second trip lever 180. When engaged with the second stop member 190 coupled to the second stop member 190 in a state where the second stop member 190 and the second stop member 190 are pivotally installed on the other central shaft 122 of the main wheel 120, the pivot is interlocked with the main wheel. Rope catcher 178 including a shoe on the other side of the second ratchet 200 and the second link 172 'having one end connected to the second ratchet 200 to be rotatable to the frame 110. A second rope fixing body 170 ′ coupled to the rope catcher is configured to include an external force applying member 176 that applies an external force to the rope catcher.

Referring to each component configured as described above in more detail, as shown in Figure 1, the frame 110 has a substantially "∪" shape on the side shape and is formed in a rectangular shape on the front top of the A shaft coupling groove is formed is coupled to the central shaft 122 is fitted.

The main wheel 120, which is generally called a governor sheave, has a rope groove formed on an outer circumferential surface of a circular wheel, and a plurality of support members are formed across the center thereof, and a central axis is coupled to an intersection thereof to form a shaft coupling groove of the frame. Is coupled to.

The first ratchet (Ratchet) and the second ratchet has a shape in which a tooth is formed in a substantially circular plate, the hole is inserted into the central axis in the center of the hole and the outer side of the perforated link in the first link and the second link The ratchet pins inserted into the holes are formed to protrude, and the first and second ratchets are alternately coupled with each other in their installation directions.

The first rope fixing body 170 and the second rope fixing body 170 ′ are rotatably coupled to the lower end by hinge pins 178a at both edges of the frame 110, and a cutout groove is formed at the center thereof. A fixed plate 174 formed with an eccentric protrusion of the external force applying member installation portion 174a with an installation hole drilled in one side thereof, an external force applying member 176 installed in the external force applying member installation portion of the fixing plate, and the fixing plate 174 The external force applying member 176 is formed of the first link 172 or the second link 172 'installed in the installation hole. An elastic member 176a inserted into the rear portion and having a front end contacted with the fixing plate 174, and a washer fastened to the rear ends of the first link and the second link so that the rear end of the elastic member is contacted and supported so that elastic force is applied; It consists of the nut 176b.

Referring to the operation according to the first embodiment configured as described above is as follows.

First, when the platform is driven in the downward direction, as shown in FIG. 3, the rope of the governor is moved at the same speed as the platform, and thus the main wheel 120 in which the rope is wound is rotated. In this state, the platform is above a predetermined speed. When descending to the pendulum 130 mounted on the main wheel is operated by the centrifugal force to operate the speed switch 210 to cut off the power of the winch and brake action, in this state again if the speed is higher than the specified speed pendulum The 130 operates the first trip lever 140 and is interlocked with the first stop member 150 so that the tip thereof is engaged with the teeth of the first ratchet 160.

Accordingly, since the first ratchet 160 is constrained to the main wheel 120, when the main wheel 120 is rotated (counterclockwise in FIG. 3), the first ratchet is also rotated in the same direction so that the first ratchet 160 is rotated. The first link 172 fixed to the ratchet pin is pulled, and the first link 172 pulled in this way pulls the fixing plate 174 and the rope catcher 178 coupled to the fixing plate is brought into close contact with the rope. Emergency stop is possible in the descending direction because the movement is restrained. If the platform continues to descend while the governor rope is fixed, the emergency stop device (not shown) mounted on the platform is operated to stop the platform. Let's go.

On the contrary, when the platform is driven in the upward direction, as shown in FIG. 4, the main wheel 120 in which the rope is wound is rotated in the clockwise direction. When the platform is lowered above the predetermined speed in this state, the platform is mounted on the main wheel 120. When the pendulum 130 is operated by the centrifugal force, the speed switch 210 is operated to cut off the power of the winch and brake. In this state, when the pendulum 130 is further speeded above the designated speed, the pendulum 130 is tripped. As the lever 180 is operated and the second stop member 190 is operated in conjunction with the lever 180, the tip is engaged with the teeth of the second ratchet 200.

Accordingly, when the second ratchet 200 is constrained to the main wheel 120 and the main wheel is rotated (clockwise in FIG. 4), the second ratchet is also rotated in the same direction, so that the second ratchet 200 is fixed to the ratchet pin of the second ratchet 200. The second link 172 'is pulled up, and the second link pulled up is pulled up by the fixing plate 174 so that the rope catcher 178 coupled to the fixing plate comes into close contact with the rope to block and restrict the movement of the rope. Emergency stop in the direction is possible.

On the other hand, Figure 5 is a perspective view showing the governor of the elevator according to a second embodiment of the present invention, Figure 6 is a schematic exploded perspective view showing a governor of the elevator according to a second embodiment of the present invention, Figure 7 is a present invention A first use state diagram for explaining the use state of the governor of the elevator according to the second embodiment of Figure 8 is a second use state diagram for explaining the use state of the governor of the elevator according to the second embodiment of the present invention As shown, parts that are not important in the description of the present invention are partially omitted, and the same parts as in the above-described first embodiment will be described with the same reference numerals.

As shown in FIGS. 5 to 6, the governor of the elevator according to the second embodiment of the present invention includes a plurality of pendulums 130 which are moved outward by centrifugal force when the main wheel 120 is speeded over a predetermined speed; A first trip lever 140 installed to one side of the main wheel so as to be in contact with the pendulum 130 and a first rotatably coupled to the main wheel 120 so as to rotate in association with the first trip lever 140. The first latch member 160 and the first ratchet 160 which are restrained by the main wheel when the stop member 150 is engaged with the first stop member 150 in a state in which the stop member 150 is pivotally installed on one side central axis of the main wheel. Rope catcher 178 including a shoe on the other side of the first link 172 is connected to the frame rotatably and the external force applying member 176 for applying an external force to the rope catcher to the outside The first rope fixing body 170 and the other of the main ring 120 A second trip lever 180 installed to face the first trip lever 140, a second stop member 190 rotatably coupled to the main wheel so as to rotate in association with the second trip lever 140, and When engaged with the second stop member 190 while being installed on the other central axis of the main wheel 122, the second ratchet 200 is restrained by the main wheel and one end thereof is connected to the second ratchet 200. Rope catcher 178 including a shoe on the other side of the second link (172 ') is rotatably coupled to the frame and the outer rope applying member 176 configured to apply an external force to the rope catcher to the outside In the governor of an elevator equipped with a congestion (170 '), when a detection signal is applied from a detection unit (not shown) for detecting a departure from the designated area of the platform in the up and down direction when the door of the platform is open Main wheel restraint connected and restrained on the main wheel Tooth 300 and the main wheel restrainer 300 is coupled to the upper end and the main wheel restraint device 300 is constrained to the main wheel 120 is fastened by being coupled to both sides of the central axis of the main wheel 120 rotatably Link link member 400 is configured to pull the first link 172 or the second link 172 'in accordance with the rotational direction of the main wheel is configured to restrain the rope.

The main wheel restraint device 300 detects a state in which the platform in which the door is opened by the detector is separated from the designated area of the platform in the up and down directions, and when the detection signal is applied, power is cut off while being sucked in the magnetized state. Since the plunger 312 is free, the solenoid 310 is configured to protrude by the elastic force of the elastic member 314 coupled thereto, and the solenoid 310 is coupled to the upper portion and the lower portion of the link constraining member 400. Coupled to the connecting member 320 and the inside formed with a moving hole, and is coupled to the lower end of the plunger 312 is inserted into the movable hole of the connecting member 320 so as to move up and down and the engaging piece ( 332 is a predetermined distance to the outer peripheral edge of the front and rear of the main wheel to be fixed or released while in contact with the locking member 330 protruding and the locking piece 332 of the fixing member 330 forward and backward by the solenoid 310 Ugh Consists includes a plurality of pin members (340) projecting.

In addition, the connecting member 320 is a hexagonal shape is formed so that the two members are formed in the moving hole therein and the fastening hole for fastening with the solenoid 310 and the link binding member 400 on the top and bottom surfaces are formed. The pin member 340 is formed in a substantially "T" shape, and the upper portion is fastened to both side edges of the main wheel 120, and its shape and quantity are not limited, and various modifications may be applied.

The link binding member 400 has one end coupled to the connection member 320 and the other end coupled to the central shaft 122 of the main wheel 120 to be positioned at a position corresponding to the first link 172. Incision groove 412 into which the ratchet pin 162 of the first ratchet 160 protruding through the first link is inserted so that the external link is applied to the first link 172 when the main wheel restraint device 300 rotates in one direction. The first connection part 410 and one end thereof are coupled to the connection member 320 so as to be positioned at a position corresponding to the second link 172 ', and the other end is formed on the central axis 122 of the main wheel 120. The ratchet pin 202 of the second ratchet 200 which is coupled and protrudes through the second link 172 'to be pulled by an external force applied to the second link 172' when the other direction of the main wheel restraint 300 rotates. ) Is formed of a second connection portion 420 having a cutout groove 422 inserted therein.

The operation according to the second embodiment of the present invention configured as described above is as follows.

As shown in FIG. 7, when the platform is speeded in the downward direction, the pendulum 130, the first trip lever 140, the first stop member 150, and the first ratchet are operated as described in the above-described first embodiment. (160), the first link 172, the first stop is fixed by the operation in the order of the 170, the emergency stop is possible, on the contrary, if the platform is speeded in the ascending direction in the above description of the operation of the first embodiment As shown in the order of the pendulum 130, the second trip lever 180, the second stop member 150, the second ratchet 200, the second link 172 ', the second rope fixing body 170' In addition to the emergency stop by the operation is made, it is possible to prevent the platform from moving in the up and down direction in the state that the elevator door is open, this operation will be described with reference to the accompanying drawings.

First, when the platform is out of the designated area with the door open, the departure of the platform is detected by the detector and the detection signal is transmitted to the solenoid 310 to cut off the power, that is, the plunger ( Since the power is cut off to the solenoid that 312 is sucked in, the plunger 312 protrudes to the outside by the elastic force of the elastic member 314. It is fixed to the pin member 340 coupled to.

Therefore, since the main wheel restraint device 300 including the solenoid 310 is restrained on the main wheel 120, when the main wheel rotates in a counterclockwise direction in this state, the main wheel restraint device 300 and the link restraint member 400 ) Rotates counterclockwise, and thus the rotational force of the first connecting portion 410 to the ratchet pin 162 located in the cutout groove 412 of the first connecting portion 410 of the link constraining member 400. This application (at this time the cutting groove 422 formed in the second connecting portion 420 is formed so that the opposite direction is formed so that the external force is not applied to the ratchet pin 202) is coupled to the ratchet pin 162 The first link 170 is pulled, and the first link 170 pulled in this way pulls the fixing plate 174 so that the rope catcher 178 coupled to the fixing plate is in close contact with the rope to block and restrict the movement of the rope. This prevents the platform door from moving open. .

On the contrary, as shown in FIG. 8, even when the platform leaves the designated area upward in the state in which the door is opened, the departure of the platform is sensed by the detector and the detection signal is transmitted to the solenoid 310 so that the power is cut off. As described above, the plunger 312 protrudes to the outside by the elastic member 314 according to the power cutoff of the solenoid, and the engaging piece 332 of the fixing member coupled to the front end thereof is coupled to the main wheel 120. The pin member 340 is fixed.

Accordingly, since the main wheel restrainer 300 including the solenoid 310 is restrained on the main wheel, the link restraining member 400 coupled to the main wheel restraint is restrained on the main wheel 120 to rotate the main wheel clockwise. When the main wheel binding device and the link binding member is rotated in the clockwise direction, the second connection portion (2) to the ratchet pin 202 located in the cutting groove 422 of the second connecting portion 420 of the link binding member. The rotational force of the 420 is applied (at this time, the cutting groove 412 formed in the first connection portion 410 is formed in the opposite direction is formed so that the external force is not applied to the ratchet pin 160) the ratchet pin 202 The second link 172 'coupled to the pulley is pulled, and the second link 172' pulled in this way pulls the fixing plate 174 so that the rope catcher 178 coupled to the fixing plate comes into close contact with the rope. Because the door is restrained and restrained, To be the same is prevented.

According to the governor of the elevator according to the present invention as described above, not only when the platform is freely falling in the downward direction or overspeeding above the speed specified in the downward direction due to cutting of the rope, but also the platform is above the speed defined in the upward direction. Since the governor is operated when the vehicle is overspeeded, it is a very useful invention that increases the safety of the elevator and improves the safety of passengers and cargo.

In addition, the governor operates even when the platform is moved up and down the platform when the rope is slipped on the elevator hoist brake or the pulley of the hoist or the safety circuit is open. Therefore, it is a very useful invention that can improve the safety, such as to prevent the safety accident factors in advance.

Claims (4)

delete A plurality of pendulums moved by the centrifugal force when the main wheel is overspeed, a first trip lever which is in contact with and operated by the pendulum, a first stop member which is rotated in association with the first trip lever, and a first engaging member which is engaged with the first stop member Rope catcher including a shoe on the other side of the first link, one end of which is connected to one end of the ratchet and the first ratchet, is rotatably coupled to the frame, and an external force applying member configured to apply external force to the rope catcher. In an overspeed governor of an elevator provided with a stagnation, a second trip lever, a second stop member, a second ratchet, and a second rope fixing body installed to face the other side of the main wheel, If the detection signal is applied from the sensing unit that detects the departure from the designated area of the platform in the state where the door of the platform is open, the plunger sucked in the magnetized state is coupled to the elasticity. A solenoid configured to protrude by the elastic force of the member, a connection member having the solenoid coupled to the upper portion and having a moving hole formed therein, a fixing member installed at the lower end of the plunger and protruding the engaging pieces on both sides of the lower end, and by the solenoid A main wheel restraining device including a plurality of pin members projecting at regular intervals on the front and rear outer circumferences of the main wheel so as to be fixed or released from the engaging piece of the fixed member which is forward and backward; The upper end is coupled to the connecting member and the lower end is rotatably coupled to both sides of the central axis of the main wheel so as to be interlocked with the main wheel restraint device which is constrained to the main wheel which is overspeed, and pulls the first link or the second link along the rotational direction of the main wheel. An elevator governor, characterized in that it comprises a link binding member configured to effect the restraint of the rope. delete The method of claim 2, The link restraining member is coupled to the connection member at one end thereof so as to be positioned at a position corresponding to the first link, and the other end is rotatably coupled to the central axis, and an external force is applied to the first link during one-way rotation of the main wheel restraint device. A first connection portion having a cutout groove into which a ratchet pin protruding through the first link is inserted to be pulled, and one end coupled to the connection member so as to be positioned at a position corresponding to the second link, and the other end rotatable on the central axis; The second governor of the elevator, characterized in that the second connection portion is formed with a cutout groove is inserted into the ratchet pin protruding through the second link so that the external link is applied to the second link when the rotational direction of the main wheel drive is rotated in the other direction.