Anti-running-grinding safety protection device and winching with same

Abstract

The invention discloses an anti-running-grinding safety protection device. Shells on the two sides are connected through connecting bolts, and a steel wire rope is arranged in a gap between the shellson the two sides; and rolling wheels are arranged in a mounting groove and make contact with the steel wire rope, and first sliding grooves are formed in the upper side and the lower side of the mounting groove and are obliquely arranged in the direction from left to back to right to front. The invention further discloses a winching with the anti-running-grinding safety protection device. The winching comprises a base, vertical plates arranged on the two sides of one end of the base, a second rotating shaft arranged between the vertical plates on the two sides, a winding drum arranged outsidethe second rotating shaft in a sleeving mode and the anti-running-grinding safety protection device. When the winching normally works, the rolling wheels make contact with the steel wire rope, when the winching runs away, the steel wire rope reversely moves, the rolling wheels slide to the other sides of the first sliding grooves under the guiding effect of the first sliding grooves under the friction force of the steel wire rope, and thus the distance between the rolling wheels on the two sides is decreased; and meanwhile, the rolling wheels generate extrusion force on the steel wire rope, and thus the winching is prevented from running away.

Description

technical field [0001] The invention belongs to the technical field of rope motion direction control, and in particular relates to a safety protection device for preventing running and grinding and a winch with the same. Background technique [0002] Winch mill is one of the most commonly used mechanical equipment in transmission line construction. It is mainly used for traction operations, and is widely used in various processes of line construction, such as: erecting iron towers, tightening lines, and erecting optical cables. [0003] During the on-site construction of the winch, the accidents that occur are basically run-offs. The meaning of run-off is: when the winch is used for normal traction, due to some uncontrollable reasons, the traction rope wound on the winch quickly Retracement in the opposite direction. If running and grinding occurs, the winch will lose its function, and the traction rope will quickly withdraw, driving the wire axis to move rapidly in the di...

AI Technical Summary

Problems solved by technology

If running and grinding occurs, the winch will lose its function, and the traction rope will quickly withdraw, driving the wire axis to move rapidly in the direction of the winch. If the on-site personnel cannot dodge in time, it will cause injury or even death to the on-site personnel

[0004] Winch mills generally have different forms of braking devices, mainly including a set of auxiliary braking devices (working when the clutch is open) and a set of braking devices (working when abnormal reversing occurs, consisting of bearings and rollers) , immersed in transmission oil); in actual use, the access speed of the brake device will be affected by the viscosity of the transmission oil, especially in the low-temperature environment on the plateau, it is more likely to be affected, and it is prone to abnormal reversing of the winch (running Grinding) when the brake device does not work or does not intervene in time, resulting in safety accidents

Therefore lack a kind of safety device that can effectively play secondary protection under the situation that its braking device does not work, avoid the generation of safety accident

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