A pulley for net weaving in the construction of high-voltage transmission lines

Abstract

The invention provides a tackle for net weaving in high-voltage power transmission wire construction. The tackle includes a tackle main body frame, an upper pulley, a lower pulley and a front connecting ring; the upper pulley is fixed to the upper half part of the tackle main body frame through a first bearing; the lower pulley is fixed to the lower half part of the tackle main body frame through a second bearing; the axial direction of the first bearing is parallel to the axial direction of the second bearing; a gap formed between the upper pulley and the lower pulley is used for accommodating a supporting rope; the front connecting ring is fixedly welded to the first bearing; and the front connecting ring is used for connecting a traction rope for net weaving. According to the tackle of the invention, the two rolling pulleys are adopted, so that friction between the rolling pulleys and the rope can be decreased; the two pulleys are arranged sequentially along a vertical direction, and the gap is formed between the upper pulley and the lower pulley, and the supporting rope can be arranged in the gap, and therefore, the supporting rope will not slip away from the tackle; the net traction rope is arranged in the front connecting ring, and therefore, the direction of a force borne by an O-shaped lock is consistent with the direction of the supporting rope, and the tackle will not rotate and is smooth when pulling the net traction rope.

Description

technical field [0001] The invention relates to the technical field of high-voltage power transmission equipment, in particular to a pulley used for weaving nets in the construction of high-voltage power transmission lines. Background technique [0002] The construction of UHV lines in my country has entered a stage of rapid development. In the process of UHV transmission line construction, it is often encountered that the situation of crossing important facilities, and it shows that the crossing height is getting higher and higher, the number of times is increasing, and the working conditions are getting worse. complex features. When crossing important facilities, it is necessary to block the network for protection of the newly-built line. However, in actual construction, the network blocking time given to the construction unit by the management unit of the cross-facility is very short. Whether it can be safely and quickly blocked within a limited time has become a problem. ...

AI Technical Summary

Problems solved by technology

[0004] However, if the O-shaped lock is used to hang on the supporting rope, the O-shaped lock will rub against the supporting rope during the process of pulling the braided net rope. If the O-shaped lock is not in the same direction as the supporting rope, it will appear The twisting of the O-lock will increase the friction between the O-lock and the supporting rope, and the situation that the net cannot be pulled will appear, thereby reducing the efficiency of sealing the net, and even destroying the supporting rope in serious cases.

Images