A rope brake suitable for pulleys

Abstract

The invention relates to the technical field of rope braking equipment, and discloses a rope brake suitable for pulleys, which includes a base, and supports are fixedly connected to both sides of the upper end of the base, and the middle parts of the two supports are movably socketed with rotating shafts. The middle part of the rotating shaft is fixedly connected with a pulley. Through the cooperation of the pulley, the block and the drive ring, when the rotating shaft is driven by the rope to rotate rapidly and generate a large centrifugal force, the block will protrude and press the arc-shaped slope under the action of rotation. As the rotating shaft rotates faster, that is The faster the rope moves, the more the block moves on the arc slope, that is, the greater the pressing distance and force of the locking arc plate, the locking of the rotating shaft by the block and the pressure on the locking arc plate The rope is forced to stop moving and stuck, and the arc slope is set on both sides of the slot, so no matter whether the rope moves upward or downward over speed, the rope can be clamped. At the same time, the setting of the arc slope This makes the rope clamp applicable to braking of ropes of different thicknesses.

Description

technical field [0001] The invention relates to the technical field of rope braking equipment, in particular to a rope brake suitable for pulleys. Background technique [0002] The rope brake is a rope clamp, which is a braking tool suitable for clamping various ropes such as traditional wire ropes and preventing them from over-speeding. For traditional elevators, the speed limiter must be used to monitor and control the down-speed of the car at any time. However, with the use of elevators, it is found that the car is over-speeding upward and the danger of topping does exist. The reason is that the car is empty. Or when the load is extremely small, the weight of the counterweight side is greater than that of the car. Once the brake fails or the traction machine shaft, key, pin, etc. are broken, or the traction rope slips in the rope groove due to serious wear of the traction sheave, the car goes up. Overspeed occurs, so people study a device that acts on the car, counterwei...

AI Technical Summary

Problems solved by technology

For traditional elevators, a speed limiter must be used to monitor and control the downward overspeed of the car at any time. However, with the use of elevators, people have found that the danger of the car overspeeding upward and reaching the top does exist. The reason is that the car is empty. Or when the load is extremely small, the weight of the counterweight side is greater than that of the car. Once the brake fails or the shaft, key, pin, etc. Overspeed occurs, so people study a device that acts on the car, counterweight, wire rope system (suspension rope or compensation rope) or traction sheave, so a rope clamp appears to prevent accidental movement of the car. Vicious casualty accidents, improve the safety of elevator use

[0003] Most of the existing wire rope brakes are upward overspeed protectors. The existing problems are, first of all, the existing wire rope brakes are unilaterally operated, and the brake pads will be eccentrically worn, and the number of times the elevator is used is countless. The long-term movement of the steel wire rope will cause serious partial wear of the brake pads, which will easily cause the brake pads to fail during braking, and at the same time reduce the service life of the wire rope clamp. Moreover, the elevator does not only have the situation of overspeeding in the upward direction during operation. In fact, the elevator There is a possibility of two-way overspeed; secondly, the action of the existing rope gripper is completed in an instant, which is very cruel and has a strong impact, especially when the counterweight often jumps very seriously during the action. The wire rope is damaged more, so the life of the rope clamp is generally shorter

Images