WO2011062411A2

WO2011062411A2 - Rope braking device for an elevator

Info

Publication number: WO2011062411A2
Application number: PCT/KR2010/008122
Authority: WO
Inventors: 오인수
Original assignee: Oh In-Soo
Priority date: 2009-11-17
Filing date: 2010-11-17
Publication date: 2011-05-26
Also published as: CN102781805B; KR101001648B1; WO2011062411A3; CN102781805A

Abstract

The present invention relates to a rope braking device for an elevator, and more specifically relates to a rope braking device for an elevator adapted to allow automatic braking of the elevator in the event of a power failure or the elevator rising/descending at excessively high speed or operating with the doors opening and closing due to mechanical breakdown or abnormal operation. In order to achieve the above aim, the present invention is a rope braking device for an elevator comprising a pair of securing frames, a supporting frame provided on the insides of the pair of securing frames, and an operating unit which is provided on the supporting frame and is equipped with an air tank and a cylinder so as to be able to lock/release a rope; wherein a cylinder rod and an air tank are integrally formed joined to the cylinder of the operating unit.

Description

Rope Braking System for Elevator

The present invention relates to a rope braking device for an elevator, and more particularly, an elevator for automatically stopping an elevator in the event of a power failure, an overspeed rising or falling due to an abnormal operation, a descending operation, an opening or closing state of a door, and an outage. It relates to a rope braking device for.

In general, an elevator device installed for moving passengers and cargo in the up and down direction in a high-rise building is approximately inside the lift and the downhill, or in a separate way up and down along the up and down directions of the building. It is selectively driven according to the control operation of the hoist installed in the machine room, so that the boarding car of the elevator can move up and down along the ascending and descending paths.

Such elevators are provided with a brake device in preparation for a fall due to an abnormal occurrence, but a brake device that is installed in the case of a sudden rise exceeding the normal speed and lacking a safety device for the departure of the door is opened. There was no standard to prevent safety accidents when normal braking was not performed due to wear, failure and other mechanical defects.

In addition, even if there are no abnormalities in the various safety devices, the safety accidents that slip in the open state of the door due to the frictional force due to the wear of the towing rope and sheaves occupy most of the accident during the rise and fall.

Therefore, even if overspeed or opening departure due to breakdown of the brake system of the elevator occurs, an auxiliary braking device or a rope brake, which is an emergency stop device, which is required to safely stop the boarding car to prevent an accident, must be installed in the elevator. Inspection standards have been announced and implemented to ensure compliance with the regulations.

Such rope brakes are classified into hydraulic, mechanical and pneumatic types depending on the mode of operation.

In this case, the hydraulic rope brake requires regular inspection and replenishment due to the risk of oil leakage from the hydraulic unit, and is inconvenient to install due to the heavy weight, and the mechanical rope brake has no risk of oil leakage compared to the hydraulic type. Although convenient, the spring's elasticity changes, which requires replacement and bulkiness, which is disadvantageous for installation.

In case of switching to normal operation after the rope brake is operated due to abnormal operation of the elevator, the operator must release the operating unit of the machine room directly. This was a lot needed.

In particular, when the elevator in operation is blackout, in the conventional rope brake structure, since the main brake and the rope brake are operated at the same time, the braking shock transmitted to the passengers due to the excessive braking force is severe and exposed to danger.

In addition, since the conventional rope brake is composed of a welded structure using steel materials, it is difficult to process and difficult to produce precisely, and the weight is heavy and the fastening structure is complicated to install, and a control box for controlling the rope brake (Control) Box) was installed as a separate device, causing inconveniences in handling.

In addition, the pneumatic type is provided with a separate air tank for supplying air to lock the rope to operate the brake pads, thereby increasing the volume of the rope braking device, which is very heavy to handle. Difficult, there was a problem that the production cost increases.

The present invention has been made to solve the above-mentioned problems, the object of the present invention is to detect when the elevator is operating abnormally to operate the rope brake to stop the operation of the elevator.

In addition, a cylinder rod is formed in the tank, and the cylinder rod is coupled to flow in the cylinder, so that the volume of the elevator rope braking device for the elevator can be manufactured to be easy to install.

In addition, since the cylinder rod coupled to the air tank and the cylinder are integrally formed, the weight of the rope braking device is easy to handle and the cost can be reduced.

On the other hand, the rope braking device of the present invention is smaller and lighter than the conventional mechanical and hydraulic type, and is easy to handle due to easy handling. Its purpose is to allow it to be reverted.

The present invention for achieving the above object,

Elevator rope braking device comprising a pair of fixed frames, a support frame installed inside the pair of fixed frames, and an operating unit provided with a cylinder and an air tank installed on the support frame to lock / release the rope. In the, characterized in that the cylinder rod and the air tank coupled to the cylinder of the operating unit is formed integrally.

At this time, the operating part including the air tank is characterized in that provided in the inside of the pair of fixed frame.

And, it characterized in that the control unit for controlling the operation of the operating unit is provided.

In addition, the support frame is characterized in that the side plate is fixed to the inner peripheral surface of the fixed frame on both sides.

And, the operation unit is installed between the side plate of the support frame, the cylinder having a fixed pad on the front, the air tank is fastened and fixed to the cylinder to perform a slide operation, and the movement provided to correspond to the fixed pad of the cylinder A pad, and the guide shaft for guiding the operation of the moving pad by connecting the cylinder and the moving pad, characterized in that.

Here, the cylinder is a pneumatic chamber is formed so that one side is opened on the inside, each corner portion of the cylinder is characterized in that the guide hole is formed.

At this time, it is characterized in that the safety valve for forcibly discharging the air supplied to the pneumatic chamber of the cylinder.

In addition, the air tank is provided with an air storage chamber is formed in the inner side, the supply hole is formed in the center, the fitting member is formed in each corner is formed with a cylinder rod that is fastened to the pneumatic chamber of the cylinder is formed corresponding to the guide hole of the cylinder And a flange having a fastening hole corresponding to a fitting hole, the air inlet pipe receiving external air to the air storage chamber, and supplying air from the air storage chamber to the pneumatic chamber of the cylinder. It is characterized in that the air supply pipe is provided.

In addition, the air supply pipe of the air tank is characterized in that the solenoid valve for controlling the air supplied to the pneumatic chamber of the cylinder.

In addition, the pressure gauge for checking the pressure of the air tank is characterized in that it is further provided.

In addition, the moving pad is provided to correspond to the fixed pad of the cylinder, it characterized in that the fixing plate is formed with a fixing hole in each corner in the opposite direction corresponding to the cylinder.

The guide shaft is fitted into the guide hole of the cylinder and the fastening hole of the air tank, and a stepped portion is formed in the upper and lower portions, and a thread is formed in the stepped portion so that the lower portion is fitted into the fastening hole of the flange and fixed with a nut. It is inserted into the fastening hole formed in the fixing member of the moving pad is fixed with a nut, characterized in that the elastic member is provided to be fitted between the guide shaft and positioned between the cylinder and the moving pad.

On the other hand, the control unit is provided with a pump for supplying air to the air tank of the operating unit, it is characterized in that the limit switch is provided to be located at the rear of the air tank of the operating unit.

At this time, the cover member for covering the control unit is characterized in that it is further provided.

And, the fixing frame is characterized in that the arc-shaped long hole is formed, the inclination adjustment bolt is fastened to the support frame is fastened to the long hole.

In addition, the control unit is characterized in that the push button is provided.

In addition, the control unit is characterized in that the safety valve is further provided.

On the other hand, the present invention is characterized in that in the elevator rope braking apparatus, the cylinder rod and the air tank coupled to the cylinder are integrally formed and installed inside the pair of fixed frames.

The present invention configured as described above has an effect of stopping the operation of the elevator by detecting the abnormal operation of the elevator to operate the rope brake.

In addition, a cylinder rod is formed in the tank, and the cylinder rod is coupled to flow in the cylinder, so that the volume of the elevator rope braking device can be made small, thereby making it easy to install.

In addition, since the cylinder rod coupled to the air tank and the cylinder are integrally formed, the weight of the rope braking device can be easily reduced and the cost can be reduced.

On the other hand, the rope braking device of the present invention is smaller and lighter than the conventional mechanical and hydraulic type, and is easy to handle due to easy handling. Has the effect of returning to.

1 is a perspective view showing an elevator rope braking device according to the present invention.

Figure 2 is a front view showing a rope braking device for an elevator according to the present invention.

Figure 3 is a plan view showing a rope braking device for an elevator according to the present invention.

Figure 4 is a side view showing a rope braking device for an elevator according to the present invention.

5 is a cross-sectional view showing an operating part of the present invention.

Figure 6 (a) and (b) is a view showing an operation relationship for the rope brake device for an elevator according to the present invention.

Hereinafter, with reference to the accompanying drawings for the elevator rope braking apparatus according to the present invention will be described in detail.

1 is a perspective view showing an elevator rope braking apparatus according to the present invention, Figure 2 is a front view showing an elevator rope braking apparatus according to the present invention, Figure 3 is a plan view showing an elevator rope braking apparatus according to the present invention. 4 is a side view showing a rope braking device for an elevator according to the present invention, and FIG. 5 is a cross-sectional view showing an operating part of the present invention.

As illustrated in FIGS. 1 to 5, the elevator rope braking apparatus 200 according to the present invention includes a pair of fixing frames 210 fixed to beams.

Here, the fixing frame 210 has a bent surface 212 is fixed to the beam at the bottom, the arc-shaped long hole 214 is formed on the side.

And, the inner side of the fixing frame 210 is provided with a support frame 220 which is fastened and fixed by the fixing bolt 216.

Here, the support frame 220 is a pair of side plates 222 are tightly fixed to the inner peripheral surface of the fixed frame 210 is formed.

Furthermore, the inclination adjustment bolt 218 is fitted to the long hole 214 of the fixed frame 210, the inclination adjustment bolt 218 is fastened and fixed to the side plate 222 of the support frame 220.

Therefore, the inclination adjustment bolt 218 flows around the fixing bolt 216 along the long hole 214, thereby easily adjusting the inclination angle of the support frame 220 to the installation angle of the elevator rope (W). Will be.

In addition, the operating unit 230 is provided between the side plates 222 of the support frame 220 to perform the locking / release operation of the rope (W).

At this time, the operation unit 230 is composed of a cylinder 231, the etan tank 240, the moving pad 250, and the guide shaft 260.

Here, the cylinder 231 is installed between the side plates 222 of the support frame 220, the fixing pad 236 is provided on one side, the opposite side provided with the fixing pad 236 is opened to the inside The pneumatic chamber 232 is formed, the guide hole 234 is formed in each corner portion.

In addition, the air tank 240 is coupled to the cylinder 231 is provided to perform a slide operation, the air storage chamber 242 is formed on the inside, the air into the pneumatic chamber 232 of the cylinder 231 in the center The supply hole 244a for supplying the gas is formed, and each of the corners is provided with a fitting hole 244b corresponding to the guide hole 234 of the cylinder 231 to be inserted into the pneumatic chamber 232. Is provided.

Furthermore, the flange 246 is coupled to the cylinder rod 244 and has a fastening hole 246a corresponding to the fitting hole 244b of the cylinder rod 244.

In this case, the cylinder rod 244 and the flange 246 may be separated and fixed by bolts (not shown), or the cylinder rod 244 and the flange 246 may be integrally formed.

In addition, an air injection pipe 247 is formed to receive external air from the air storage chamber 242, and is supplied to the supply hole 244a for supplying air from the air storage chamber 242 to the pneumatic chamber 232 of the cylinder 231. An air supply pipe 244c is provided.

At this time, the air supply pipe 244c is provided with a solenoid valve 244d for controlling the air supplied to the pneumatic chamber 232 of the cylinder 231, the pressure gauge 248 to control the pressure of the air tank 240 is provided It is provided.

On the other hand, a seal (not shown) is provided on the outer circumferential surface of the cylinder rod 244 and the fastening portions of the flange 246 and the cylinder rod 244 fitted into the pneumatic chamber 232 of the cylinder 231.

In addition, the movement pad 250 is formed with a groove 252 in a direction corresponding to the fixing pad 236 mounted on the cylinder 231, and extends and fixed to each corner portion in the opposite direction in which the groove 252 is formed. A fixed plate 254 is provided with a ball 256.

In this case, the fixing plate 254 may be formed to be separated from the moving pad 250 to be fastened and fixed by bolts (not shown), or the moving pad 250 and the fixing plate 254 may be integrally formed.

The guide shaft 260 is fitted into the guide hole 234 of the cylinder 231 and the fitting hole 244b of the air tank 240, and upper and lower stepped

portions

262a and 262b are formed. The thread 263 is formed in the stepped

portions

262a and 262b, and the stepped portion 262a formed at the lower portion of the guide shaft 260 is fitted into the fastening hole 246a of the flange 246 to be fixed by the fixing nut 264a. The step 262b formed on the upper portion of the guide shaft 260 is inserted into the fixing hole 256 formed in the fixing plate 254 of the moving pad 250 and fixed to the fixing nut 264b.

Here, the elastic member 266 is fitted to the guide shaft 260, and is positioned between the fixed plate 254 of the moving pad 250 and the cylinder 231.

In addition, a control unit 270 for controlling the operation of the operation unit 230 is provided.

Here, the control unit 270 is provided with a pump 272 connected to the air injection pipe 247 formed in the air tank 240 of the operating unit 230, the guide shaft 260 on the rear of the flange 246 The limit switch 274 is provided to be positioned on the same line as.

At this time, the pressure switch 272a for controlling the pressure of the air tank 240 is provided to detect when the pressure of the air tank 240 is dropped and the pump 272 by the pressure switch 272a to operate the air tank Air is supplied to the 240.

Therefore, the pressure switch 272a is able to maintain a state in which the air tank 240 is always filled with air of a constant pressure.

In addition, the safety valve 276 is connected to the air tank 240 for forcibly discharging the air of the air storage chamber 242.

In addition, a cover member 278 that covers the control unit 270 and is fastened and fixed to the flange 246 is provided.

In addition, a push button 279 for manually operating the rope braking device 200 is provided.

Therefore, the push button 279 is provided to lock the rope W by operating the rope braking device 200 when performing an elevator checkup, thereby preventing a safety accident from occurring when checking the elevator.

On the contrary, after the inspection of the elevator is completed, when the push button 279 is touched once more, the rope braking device 200 is released to drive the boarding car.

In this case, when the rope braking device 200 is automatically operated, the push button 279 is automatically operated while the push button 279 is kept in the ON state.

Referring to the operation of the elevator rope braking device according to the invention configured as described above are as follows.

Figure 6 (a) and (b) is a view showing the working relationship for the elevator rope braking apparatus according to the present invention.

As shown in the rope rope braking device 200 according to the present invention, first, when the driving car of the elevator operates normally, as shown in Figure 6 (a) of the moving pad 250 is a rope (W) It is spaced apart from each other to maintain parallelism so that it does not interfere with the operation of the boarding car.

In this state, if the boarding car stops at the destination and slips or falls, the controller (not shown) of the elevator detects such a malfunction and controls the control of the controller. The rope braking device 200 is operated.

That is, when an abnormal symptom such as a malfunction of a boarding car occurs, the controller detects this information and inputs the information. When the controller cuts off the power supplied to the solenoid valve 244d, the solenoid valve 244d is opened. The air stored in the air tank 240 is supplied to the pneumatic chamber 232 of the cylinder 231 through the air supply pipe 244c.

As such, while the air is supplied to the pneumatic chamber 232 of the cylinder 231, the cylinder rod 244 fastened and fixed to the pneumatic chamber 232 of the cylinder 231 is withdrawn from the pneumatic chamber 232.

At this time, when the cylinder rod 244 is withdrawn from the pneumatic chamber 232 of the cylinder 231, the guide shaft 260 is fastened and fixed to the fastening hole 246a formed in the flange 246 of the cylinder rod 244 The retractor is retracted along the guide hole 234 of the cylinder 231, and the resilient member 266 is retracted in a pressurized state when the guide shaft 260 is retracted along the guide hole 234. By the retreat of the 260, the moving pad 250 fastened to the guide shaft 234 is retracted, and the guide shaft 260 touches the limit switch 274 while retreating with the air tank 240.

Therefore, as shown in FIG. 6B, the moving rod 250 is operated by the guide shaft 260 while the cylinder rod 244 is withdrawn from the cylinder 231, thereby fixing the fixed pad 236 and the moving pad. Locking by pressing the rope (W) located between the 250 and at the same time the guide shaft 260 touches the limit switch 274 to stop the operation of the elevator.

In addition, when the air pressure of the air tank 240 drops as the air of the air tank 240 is supplied to the pneumatic chamber 232 of the cylinder 231, the pressure switch 272a detects the pump 272. By replenishing the air to the air tank 240 by operating the air tank 240 is always kept in a state filled with air of a constant pressure.

After the safety measures for the vehicle are completed, power is supplied to the solenoid valve 244d and the air supplied to the pneumatic chamber 232 of the cylinder 231 is cut off, and the air of the pneumatic chamber 232 to the outside. When discharged, the guide shaft 260, the cylinder rod 244, and the movement pad 250 are restored to their original state by the elastic force of the elastic member 266, and thus the pressing force for pressing the rope W is lost and locked. Will be released.

At this time, when the guide shaft 260 is returned to its original state by the elastic force of the elastic member 266, the guide shaft 260 is separated from the limit switch 274.

As such, the moving pad 250 is returned to its original shape by the elastic force of the elastic member 266, so that the moving pad 250 is released from the rope W and the locked state is released, thereby enabling normal driving of the vehicle. .

On the other hand, when manually operating the rope braking device 200, such as safety check of the elevator, when the operator turns off the push button 279, the rope braking device 200 is operated to board the car in the same manner as the former Will stop running.

When the operation such as safety check of the elevator is completed in the state where the boarding car is stopped, when the push button 279 is turned on, the locking state of the rope braking device 200 is released from the rope W by the same method as the former. The boarding car will be able to operate normally.

In addition, when an abnormal symptom such as a malfunction of the boarding car occurs and the rope braking device 200 is operated to move the boarding car while the rope W is locked, the solenoid valve 244d is manually operated to operate the air tank ( When the compressed air of 240 is removed, the moving pad 250 is released from the locking state of the rope W by the elastic force of the elastic member 266, so that the driving car can be driven.

Then, the inclination angle of the rope braking device 200 can be adjusted by using the inclination adjustment bolt 218 fastened and fixed to the arc-shaped long hole 214 formed on the side of the fixed plaque 210.

When the inclination adjustment bolt 218 is released, the inclination adjustment bolt 218 screwed to the support frame 220 is freely supported by the support frame 220 based on the fixing bolt 216 on the long hole 214. When the flow is enabled to adjust the inclination angle of the rope (W) and then tighten the inclination adjustment bolt 218, the inclination adjustment of the rope braking device 200 is completed.

On the other hand, when the boarding car of the elevator is to move the boarding car in a state in which the operation is stopped by the rope braking device 200, when the safety valve 276 is opened, the air pressure is dropped while the air in the air tank 240, Locking of the rope (W) is released to enable the operation of the elevator.

In the above, a preferred embodiment of an elevator rope braking apparatus according to the present invention has been described, but the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible to implement, which also belongs to the scope of the present invention.

Claims

Elevator rope braking device comprising a pair of fixed frames, a support frame installed inside the pair of fixed frames, and an operating unit provided with a cylinder and an air tank installed on the support frame to lock / release the rope. To

Elevator rope braking device, characterized in that the cylinder rod coupled to the cylinder of the operating unit is formed integrally.
The method of claim 1,

The operating part including the air tank is an elevator rope braking device, characterized in that provided on the inside of a pair of fixed frame.
The method of claim 1,

Elevator braking device, characterized in that provided with a control unit for controlling the operation of the operating unit.
The method of claim 3, wherein

The support frame is an elevator rope braking device, characterized in that the side plate is fixed to the inner peripheral surface of the fixed frame on both sides.
The method of claim 3, wherein

The operating unit is installed between the side plate of the support frame, the cylinder with a fixing pad on the front,

An air tank fastened to the cylinder to perform a slide operation;

A moving pad provided to correspond to the fixed pad of the cylinder;

Elevator rope braking device characterized in that consisting of a guide shaft for guiding the operation of the movement pad by connecting the cylinder and the movement pad.
The method of claim 5,

The cylinder is formed in the pneumatic chamber so that one side is opened inside,

Elevator rope braking device, characterized in that the guide hole is formed in each corner of the cylinder.
The method of claim 6,

Elevator rope braking device further comprises a safety valve for forcibly discharging the air supplied to the pneumatic chamber of the cylinder.
The method of claim 5,

The air tank is provided with an air storage chamber is formed in the inner side, the supply hole is formed in the center, the fitting hole is formed in each corner corresponding to the guide hole of the cylinder is formed with a cylinder rod is fastened to the pneumatic chamber of the cylinder,

Is fastened and fixed to the cylinder rod, the flange is provided with a fastening hole corresponding to the fitting hole,

An air injection pipe for receiving external air to the air storage chamber is formed,

Elevator rope braking device characterized in that the air supply pipe for supplying air from the air storage chamber to the pneumatic chamber of the cylinder is provided.
The method of claim 5,

The air supply pipe of the air tank is a rope braking device for an elevator, characterized in that provided with a solenoid valve for controlling the air supplied to the pneumatic chamber of the cylinder.
The method of claim 5,

Elevator rope braking device characterized in that the pressure gauge for checking the pressure of the air tank is further provided.
The method of claim 5,

The moving pad is provided to correspond to the fixed pad of the cylinder, elevator rope braking device, characterized in that the fixing plate is formed with a fixing hole in each corner in the opposite direction corresponding to the cylinder.
The method of claim 5,

The guide shaft is inserted into the guide hole of the cylinder and the fastening hole of the air tank, and a step is formed on the upper and lower parts, and a thread is formed on the step, and the lower part is inserted into the fastening hole of the flange and fixed with a nut, and the upper part is a moving pad. It is inserted into the fastening hole formed in the fixing member of the fixed with a nut,

An elevator rope brake device, characterized in that the elastic member is fitted to the guide shaft and positioned between the cylinder and the moving pad.
The method of claim 3, wherein

The control unit is provided with a pump for supplying air to the air tank of the operation unit,

An elevator rope brake device, characterized in that the limit switch is provided to be located at the rear of the air tank of the operating unit.
The method of claim 13,

Elevator rope braking device characterized in that the cover member is further provided to cover the control unit.
The method of claim 2,

The fixed frame has an arc-shaped long hole is formed, the elevator rope braking device characterized in that the inclination adjustment bolt is fastened to the support frame is fastened to the long hole.
The method of claim 3, wherein

Elevator control rope braking device, characterized in that the control unit is provided with a push button.
The method of claim 3, wherein

Elevator control rope braking device characterized in that the control unit is further provided with a safety valve.
In the rope brake device for an elevator,

Elevator rod brake device, characterized in that the cylinder rod coupled to the cylinder and the air tank is formed integrally installed inside the pair of fixed frames.