Insulating flat belt type tightener
A wire tensioner and flat tape technology, applied in the direction of overhead lines/cable equipment, etc., can solve the problems of wire falling off, potential safety hazards, and it is difficult to accurately predict the actual tensile force of the insulating flat tape, so as to avoid breakage and improve safety and reliability. Effect
Active Publication Date: 2014-03-19
STATE GRID CORP OF CHINA +3
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Problems solved by technology
[0004] At present, the performance of the insulating flat belt mainly depends on the usual maintenance and periodic insulation test and tensile test to ensure its tolerance; in the process of operation, the insulating flat belt is mainly subjected to the pulling force of the wire, and the actual pulling force of the wire is related to its cross-sectional size and Tightening the sag is related, so it is difficult to accurately predict the actual tension on the insulating flat belt. When the actual tension on the insulating flat belt exceeds its maximum load, the insulating flat belt will break and the wire will fall off. There is a large Security risks
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[0028] The embodiment of the present invention provides an insulating flat belt type wire tensioner, which can accurately know the actual tension on the insulating flat belt, and can take protective measures before the insulating belt breaks to avoid the breakage of the insulating flat belt, thereby improving safety and reliability .
[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030...
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Abstract
The invention provides an insulating flat belt type tightener. The insulating flat belt type tightener comprises an insulating flat belt, a fixing shaft and a hook which is used for hanging on a lead; the hanger is connected with the fixing shaft through a connecting mechanism; the connecting mechanism comprises a first connecting block which is connected with the fixing shaft, a second connecting block, an elastic part which is arranged between the blocking portion and the left end of the second connecting block and an indicating part which is arranged relative to stress indicating scales; one end of the connecting mechanism, which is far away from the fixing shaft, is provided with a blocking portion; the left end of the second connecting block is connected with the hook; the right end of the second connecting block is connected with the first connecting block along the stress direction of the insulating flat belt in a slidable mode; the first connecting block is provided with the stress indicating scales when the elastic part is compressed. According to the insulating flat belt type tightener, the indicating part can move between the stress indicating scales when the elastic piece is compressed and deformed, the insulating flat belt bore real tensile force can be accurately obtained according to a scale value of corresponding positions of the indicating part on the stress indicating scales, protection measures can be adopted before fracture of the insulating belt, the insulating belt is avoided from being fractured, and accordingly safe reliability is improved.
Description
technical field [0001] The invention relates to the technical field of electric power systems, and more specifically, relates to an insulating flat belt type wire tensioner. Background technique [0002] In the power system, the insulating flat belt tensioner is often used in the live operation of the power distribution overhead line, such as for live replacement of tension insulator strings, replacement of cross arm or tension section projects, etc. [0003] The traditional insulating flat belt tensioner mainly includes a winding wheel, a fixed shaft, an insulating flat belt, a handle and two hooks arranged on both sides; wherein, one end of the insulating flat belt is wound on the fixed shaft, and the other end is Wound on the reel; two hooks are used to hang on the cross arm and the wire respectively, one of the hooks is connected to the fixed shaft through a U-shaped connection block, and the other hook is connected to the reel; the handle is fixedly connected to the ree...
Claims
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Inventor 赵海杨晓翔吴信文徐达元邵文晋
Owner STATE GRID CORP OF CHINA