KR100196206B1 - Apparatus of braking rope for an elevator - Google Patents

Abstract

The present invention maximizes the safety of the elevator by emergency braking when the elevator moves faster than the normal speed or moves slowly as if the elevator slides in a stationary state while operating together with a driving braking device used when the elevator operates at a normal speed. The present invention relates to an elevator rope braking device for preventing various safety accidents, which is connected to a release part operated by a signal of a control part, one end of which is connected to a slide bar of the release part, and the other side of the brake bracket gap of the brake shoe. A link connected to a shaft of a cam controlled together with a balance spring and a compression spring to rotate, a brake shoe for braking a rope for operating an elevator by the operation of the release part, and a flowr for flowing the brake shoe to lock the rope. The fluid is inclined It is an invention that can be achieved by configuring the rope braking device with a shoe bracket formed with a guide groove to move stably along.

Description

Rope Braking System for Elevator

Figure 1 (a) (b) is a perspective view of the state of use of the present invention.

2 is a front perspective view showing the braking device of the present invention.

3 is a rear perspective view showing the braking device of the present invention.

Figure 4 is an excerpt perspective view of the main portion of the present invention.

5 is an exploded perspective view of main parts of the present invention.

6 is a longitudinal sectional view of a state before the braking device of the present invention is operated.

7 is a plan view of FIG. 6 of the present invention.

8 is a longitudinal sectional view of a state in which the braking device of the present invention is operated.

9 is a plan view of FIG. 8 of the present invention.

10 is a longitudinal sectional view showing a braking state when the elevator is moved downward in the state of braking according to the present invention.

11 is a longitudinal sectional view showing a braking state when the elevator is moved upward in the state of braking according to the present invention.

* Explanation of symbols for main parts of the drawings

1: Rope Braking Device 2: Housing

3: guide groove 10: termination

101: motor 102: original bevel gear

103: driven bevel gear 104: driven shaft

105: pinion 106: rack gear

107: slide bar 11a, 11b, 11c: link

12: Cam 13: Balance Spring

14: compression spring 15, 15 ': fluid

15a, 15a ': guide protrusion 16: bullet shaft

17, 19: Shoe bracket 18, 20: slope

21, 23: brake shoes 25, 26: tension spring

30: elevator 32: rope

The present invention relates to an elevator for easily lifting a high-rise building, and in particular, as the elevator moves faster than the normal speed or slides in a stationary state while operating together with a braking device used when the elevator operates at a normal speed. The present invention relates to a rope brake device for elevators, which is capable of driving safety by braking a brake shoe having a rhombus shape as a pair of ropes for pulling an elevator when it is gradually moved.

In general, elevators that move passengers while vertically elevating a high-rise building are connected to a rope driven by a motor, and the elevators are lifted without flow by guide shoes guided by guide rails on both sides of the elevator. have.

In addition, the elevator as described above is provided with a driving braking device for stopping the elevator on the displayed floor by pressing the button of the floor to go in the elevator or pressing the elevator button on each floor, the control unit recognizes this, The elevator is equipped with a rope braking system which is operated when the elevator stops at the target floor and the passengers slip on or off as soon as the passenger descends due to the lowering of braking force of the system and the lowering force of the towing rope and hoisting pulley. To prevent accidents.

Conventionally developed emergency braking devices are mainly used to control the abnormal operation of the elevator by restraining the guide rail for guiding the elevator with a wedge-shaped jaw. The motor is shut off, further restraining the Gavarner rope, and the wedge-type emergency braking system restrains the guide rail.

However, the emergency braking device as described above operates only when the elevator falls sharply above the normal speed, and there is a problem in that it is impossible to brake when the vehicle slips at a low speed in a stopped state and when the sudden rise exceeds the normal speed.

Recently, in order to solve the above problems, the cylinder rod is locked with a solenoid, and when an abnormal operation signal of the elevator is detected, the cylinder rod is released from the solenoid, and the released cylinder rod is pulled by the brake shoe and connected to the rope. An emergency braking system has been developed for emergency braking of elevators. However, such a device must maintain a braking pressure of about 1000 kg. Therefore, the size of the braking system must be increased, and when the emergency braking brake shoe is opened, Since the power source is to use hydraulic or pneumatic equipment, the manufacturing and manufacturing costs are expensive, and thus the purchase and use of the power source are excluded.

Accordingly, an object of the present invention is to operate the rope braking device together with the driving braking device used when the elevator is installed at the normal speed to move up and down the high-rise buildings conveniently and the elevator is running faster than the normal speed or stopped In case of abnormal operation that is slowly moving as if slipping in, the locking of the elevator's rope is strongly locked to prevent various safety accidents due to breakdown or failure of the elevator brake system. The present invention provides an elevator rope braking device for maximizing safety according to the operation of an elevator by allowing braking.

The object of the present invention is to provide a release part that is operated by a signal of the control unit, a link is connected to one end is connected to the slide bar of the release unit, and the opposite side of the link to control the shoe bracket spacing of the brake shoe A brake shoe for braking the rope driving the elevator by the operation of the disengagement unit, a flower which is installed in the coil spring and flows so that the brake shoe locks the rope, and guides the stator to move stably along the inclined surface. It can be achieved by configuring the rope braking device with a grooved shackle bracket and a compression spring for controlling the balance of the shoe bracket according to the rotation of the cam.

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

Rope braking device which is provided in the machine room provided with the hoisting machine and brakes the rope 32 side in which the elevator 30 is installed or the rope 32 side in which the counterweight 34 is installed among the ropes 32 caught on the hoisting pulley 33 ( In 1), one end is connected to both ends of the release unit 10 and the slide bar 107 of the release unit 10 is operated by the signal of the control unit not shown by the slide bar 107 A cam 12 provided on opposite sides of the rotating links 11a, 11b, 11c, and the links 11a, 11b, 11c to control the space between the brake shoes 21, 23; The brake shoes 21 and 23 for braking the rope 32 for operating the elevator 30 by the operation of the release unit 10 and the brake shoes 21 and 23 are used to lift the rope 32. The guides 17b and 19b are formed to stably move along the inclined surfaces 18 and 20, and the actuators 15 and 15 'which flow to lock and the actuators 15 and 15' move stably along the inclined surfaces 18 and 20. Shoe Bracket The rope braking device 1 is composed of a balance spring 13 and a compression spring 14 which control the balance of the shoe brackets 17 and 19 according to the rotation of the cam 12. do.

The termination unit 10 of the rope braking device 1 of the present invention is driven by the driven bevel gear 102 and driven bevel gear 103, the rotating shaft of the motor 101, the driven shaft It consists of the rack gear 106 which raises and lowers the slide bar 107 by the pinion 105 fixed to the both ends of 104. As shown in FIG.

At this time, the links 11a, 11b, and 11c are installed outside the housing 2 of the rope braking device 1 while the slide bar 107 moves up and down along the guide grooves 3 formed in the housing 2. Make each turn together.

The other side of the links 11a, 11b and 11c is fixed to the shaft 12a of the cam 12 which controls the space between the brake shoes 21 and 23, while the shaft 12a of the cam 12 is fixed. The links 11a, 11b, and 11c are rotated about each other.

The balance springs 13 and the compression springs 14 are mounted on the plurality of thrust shafts 16 inserted through both sides of the shoe brackets 17 and 19, respectively, but the four balance springs 13 are shoe brackets 17. 6 and 6 compression springs 15 are installed on the outer side of one side shoe bracket 19 so that the elastic force of the balance spring 13 and the compression spring 15 and the cam 12 are By the balance of the shoe bracket (17) (19) to be maintained.

On the other hand, guide holes 17a and 19a are formed on both sides of the shoe brackets 17 and 19, and the guide holes 17a and 19a are formed on both sides of the housing 2, respectively. 5) the brake brackets 17 and 19 and the brake shoes 21 and 23 are moved to the left and right to brake the rope 32 of the elevator 30.

In addition, the brake shoes 21 and 23 form a plurality of irregularities 21a and 23a on the braking surface of the rope 32 to widen the contact area between the brake shoes 21 and 23 and the rope 32. In order to improve the braking force, the brake shoes 21 and 23 are lowered by the fluids 15 and 15 'which are moved along the inclined surfaces 18 and 20 of the shoe brackets 17 and 19. Braking and releasing (32) and allowing the fluids (15) and (15 ') to be returned by the tension springs (25) (26).

On the other hand, the upper side of the housing (2) of the rope braking device (1) by installing a handle (6) provided with a screw (7) to allow the slide bar 107 to adjust the limit of upward movement.

The present invention configured as described above will be described by dividing the effect of the normal operation of the elevator and the effect of the abnormal operation.

First, during normal operation of the elevator 30, power is applied to the motor 101 of the canceling unit 10 as shown in FIGS. 6 and 7 to draw the slide bar 107, so that the slide bar ( Links 11a, 11b and 11c connected to 107 are pulled downward.

Therefore, the cams 12 fixedly engaged to the other end of the link 11 rotate, and the shoe brackets 17 and 19 and the brake shoes 21 and 23 compressed by the compression spring 15 are fixed. As the gap is spaced apart, a gap is formed between the brake shoes 21 and 23 and the rope 32 of the elevator 30 so that the elevator 30 may operate normally.

As described above, when the user presses the elevator button while the elevator 30 is in normal operation, the elevator 30 reaches the selected floor and the operating brake device operates to stop the elevator 30 and simultaneously operate the elevator 30. Since the control unit for controlling the power supply reverse power to the motor 101 of the termination unit 10, the driven bevel gear 102 and the driven bevel gear 103 rotates the driven shaft 104 in the reverse direction pinion 105 The rack gear 106 and the slide bar 107 engaged with each other are raised as shown in FIGS. 8 and 9.

On the other hand, when the slide bar 107 is raised, the links 11a, 11b, 11c connected to the slide bar 107 are rotated upward and fixed to the other end of the links 11a, 11b, 11c. The spring 12 rotates by the rotation angle of the links 11a, 11b and 11c to release the space keeping state of the shoe brackets 17 and 19, so that the compression spring for holding the shoe brackets 17 and 19 rests. The brake shoes 21 and 23 are brought into close contact with the rope 32 while the balances of the 14 are broken, and the rope braking device 1 brakes the elevator 30 together with the driving braking device.

At this time, when the elevator 30 is normally stopped on the selected floor and does not flow upward and downward, the rope 32 of the elevator 30 is braked while maintaining the braking state as shown in FIG.

In addition, when the user is getting on and off on the selected floor and the elevator 30 is closed, the control unit releases the driving braking device as described above and at the same time, applies an electrostatic source to the motor 101 of the rope braking device 1 so that the link is closed. (11a) (11b) (11c) and the cam (12) return, and due to the return of the cam (12), the shoe brackets (17) (19) and the brake shoes (21) (23) return as shown in FIG. While maintaining the balance of the balance spring 13 and the compression spring 15 to allow the elevator 30 to operate normally.

Meanwhile, as shown in FIGS. 8 and 9, the elevator 30 is deteriorated due to various causes such as a failure of the braking device in the normal driving state, a decrease in frictional force between the traction rope and the hoisting pulley 33, and an overload. As shown in FIG. 10, when the low speed is moved downward, the upper part of the fluid 15, 15 ′ provided between the brake shoes 21, 23 and the shoe bracket 17, 19 is provided. The brake shoe is moved by the fluid 15 moving along the inclined surface 18 of the shoe brackets 17 and 19 since the N is moved downward along with the brake shoes 21 and 23 while tensioning the tension spring 25. (21) (23) the interval becomes narrower, thereby braking the brake shoes (21) 23 to a greater pressure, thereby enabling emergency braking of the elevator (30) descending at a lower speed do.

In addition, as shown in FIGS. 8 and 9, the elevator 30 may be deteriorated due to various reasons such as a failure of the braking device and a decrease in frictional force between the traction rope and the hoisting pulley 33 and overloading. As shown in FIG. 11, when the lower speed is moved upward, the upper part of the fluid 15, 15 ′ provided between the brake shoes 21, 23 and the shoe bracket 17, 19 is provided. ') Is moved upwards together with the brake shoes 21 and 23 while tensioning the tension spring 26, so that the fluid 15' moves along the inclined surface 20 of the shoe brackets 17 and 19. As the distance between the brake shoes 21 and 23 becomes narrower, this causes the brake shoes 21 and 23 to brake the rope 32 with a greater grip force so that the brake 30 which rises at a lower speed may be emergency braked. It will be possible.

In particular, the rope braking device 1 according to the present invention has an electrostatic source applied to the motor 101 as shown in FIGS. 6 and 7, so that the brake shoes 21, 23 and the rope 32 are separated from each other. If the normal speed is exceeded beyond the control unit during normal operation with the gap maintained, the normal governor (Gavarner) detects this and cuts off the power of the motor, and immediately supplies the reverse power to the motor 101 to the cam. (12) and the brake shoes 21, 23 and the shoe brackets (17) and (19) by the balance spring 13 and the compression spring 14 to break the balance, so that the brake shoes 21, 23 It is in close contact with the rope 32 as well.

Accordingly, both side brake shoes 21 and 23 brake the rope 32 at a pressure of 1000 kg or more while operating as shown in FIGS. 10 and 11 according to the moving direction of the elevator 30. In addition to being able to emergency stop, it is possible to prevent the fall accident of the elevator (30).

At this time, when braking the rope 32 of the elevator 30 with the brake shoes 21 and 23 as described above, by the unevenness 21a and 23a formed on the friction surface of the brake shoes 21 and 23. Since the friction area between the brake shoes 21 and 23 and the rope 32 becomes wider, the elevator 30 can be more stably emergency braked.

On the other hand, when the elevator 30 ascending or descending beyond the normal speed and emergency braking as described above, the brake shoes 21, 23 and the shoe bracket (b) holding the rope 32 at a braking pressure of 1000 kg or more. 17) 19 cannot be returned by the force of the cam 12 and the balance spring 13 which are operated by the motor 101 of the termination part 10. FIG.

Therefore, after the brake system is operated, the fault portion is repaired, and the elevator 30 is switched to manual operation. If the elevator 30 is manually operated in the opposite direction operated with the brake shoes 21 and 23, the brake shoe 21 ) Is restored by the frictional force of 23 and the rope 32 and the restoring force of the tension springs 25 and 26 installed in the housing 2, and at this time, by supplying an electrostatic source to the motor 101, the link 11a ( When the 11b) and 11c are rotated downward, the shoe brackets 17 and 19 are balanced by the cam 12, the balance spring 13 and the compression spring 14 so that the elevator 30 can be normally operated again. It is.

In particular, the brake shoes 21 and 23 which are moved upward or downward during emergency braking are such that the actuators 15 and 15 'are moved along the inclined surfaces 18 and 20 of the shoe brackets 17 and 19. As a result, when the brake shoes 21 and 23 move upward or downward, the braking pressure for pressurizing the rope 32 is gradually increased to emergency brake the elevator 30. The guide protrusions 15a and 15a are formed in the guide protrusions 15a and 15a ', and the guide protrusions 15a and 19b are formed in the shoe brackets 17 and 19, respectively. 15a 'is guided to the guide grooves 17b and 19b of the shoe brackets 17 and 19, so that the brakes of the rope braking device 1 move and return the stator 15 and 15' stably. The shoes 21 and 23 can be operated.

As described above, the present invention allows the rope braking device to be operated together with the driving braking device used when the elevator installed at the normal speed to conveniently lift and lift a high-rise building, and the elevator is operated or stopped faster than the normal speed. In case of abnormal operation that moves slowly in the state of slipping, the rope of the elevator is strongly locked to prevent various safety accidents due to breakdown or failure of the elevator braking system, and also to lift the elevator even when the elevator descends abnormally. By enabling emergency braking, the effect of maximizing safety due to the operation of the elevator is provided.

Claims (5)

Rope braking device which is provided in the machine room provided with the hoisting machine and brakes the rope 32 side in which the elevator 30 is installed or the rope 32 side in which the counterweight 34 is installed among the ropes 32 caught on the hoisting pulley 33 ( In 1), one end is connected to both ends of the release unit 10 and the slide bar 107 of the release unit 10 is operated by the signal of the control unit not shown by the slide bar 107 A cam 12 provided on opposite sides of the rotating links 11a, 11b, 11c, and the links 11a, 11b, 11c to control the space between the brake shoes 21, 23; The brake shoes 21 and 23 for braking the rope 32 for operating the elevator 30 by the operation of the release unit 10 and the brake shoes 21 and 23 are used to lift the rope 32. The guides 17b and 19b are formed to stably move along the inclined surfaces 18 and 20, and the actuators 15 and 15 'which flow to lock and the actuators 15 and 15' move stably along the inclined surfaces 18 and 20. Shoe Bracket (1 7) (19) and the balance brake (13) and compression spring (14) for controlling the balance of the shoe brackets (17) and (19) in accordance with the rotation of the cam 12 constitutes a rope braking device (1) Rope brake system for an elevator characterized in that. The driven shaft 104 and the driven shaft 104 of claim 1, wherein the release unit 10 receives the rotation of the motor 101 by the driven bevel gear 102 and the driven bevel gear 103. Elevator rack braking device, characterized in that consisting of a rack gear 106 for raising and lowering the slide bar (107) by the pinion (105) fixed to both ends of the. The brake shoes 21 and 23 are formed in contact with the brake shoes 21 and 23 and the rope 32 by forming a plurality of irregularities 21a and 23a on the braking surface of the rope 32. Elevator braking device for an elevator, characterized in that to increase the area and improve the braking force. According to claim 1, wherein the brake shoes (21) 23 is moved along the inclined surface (18, 20) of the shoe bracket (17) (19) under the elastic force of the tension spring (25) (26) (15) (15 ') the elevator rope braking device, characterized in that to be able to brake and release the rope (32). According to claim 1, The guide (15a, 15a ') is formed in the fluid (15, 15') and the guide grooves (17b, 19b) are formed in the shoe bracket (17, 19) flow An elevator rope braking device, characterized in that the guide protrusions (15a) (15a ') of the ruler (15) (15') is guided to the guide grooves (17b) (19b) of the shoe bracket (17) (19).