CN2219555Y

CN2219555Y - Universal rear gripper for hot-line working of 35-220KV electric transmission line

Info

Publication number: CN2219555Y
Application number: CN 94247710
Authority: CN
Inventors: 陈普能; 王式平
Original assignee: DUYUN CITY POWER SUPPLY BUREAU
Current assignee: DUYUN CITY POWER SUPPLY BUREAU
Priority date: 1994-12-08
Filing date: 1994-12-08
Publication date: 1996-02-07
Anticipated expiration: 2004-12-08

Abstract

The utility model discloses a universal rear gripper for the hot-line working of the 35KV to 220KV electric transmission line. The utility model comprises a tightener (6), and a rear gripping plate (1). The middle part of the rear gripping plate (1) is provided with holes (2) at the symmetrical position. The upper side of holes (2) are provided with fastening screws (3), fastening iron plates (4), and fastening nuts (5), and the fastening screws (3), the fastening iron plates (4), and the fastening nuts (5) are connected with insulators. The utility model can be suitable for various combining modes of different coupling, and can also be used for changing various extension resistant single insulator strings and suspending single insulator strings for the indirect hot-line working. The utility model has the advantages of strong practicability, convenient operation, high strength, and safe use.

Description

The general rear end of a kind of 35～220kv hot line maintenance jig

The utility model relates to the built on stilts erecting tools of a kind of cable, particularly a kind of instrument of transmission line charged for replacement insulator.

At present, domestic in the operation of charged for replacement 35～220kv ultra-high-tension power transmission line list insulator string, usually adopt the method for stringing pull bar bottle supporting beam, need jig is fixed on original circuit link gold utensil, the fixation problem of general front end jig is little, and rear end jig fixing be owing to be subjected to various connection gold utensil to form mode, gold utensil towards, the influence of specification does not also have a kind of universal rear end jig at present.Under the incompatible situation of the composition mode of rear end jig and circuit link gold utensil, have to wait for the power failure operation.So just because of power failure operation meeting causes many economic losses, and in the open air, on the mountain during operation, instrument, material are transported to the scene and can not operations, have also caused many human and material resources and waste of time.

The purpose of this utility model is: a kind of general rear end jig that is applicable to the charged for replacement insulator that 35～220kv transmission line uses is provided.It can be applicable to the various different composition modes that connect gold utensil, and operation need not have a power failure.

Formation of the present utility model: comprise wire grip (6) and rear end clamp (1), the middle part of described rear end clamp (1) has hole (2) by symmetric position, is equipped with on hole (2) with insulator to connect holding screw (3), fastening iron plate (4) and the clamp nut (5) that gold utensil connects.

For adapt to different connection gold utensils towards, described rear end clamp (1) and wire grip (6) for flexibly connecting, there is hold-down nut (7) at the both ends of rear end clamp (1).

In order to improve the stringing effect, described wire grip (6) is by boosting-rod (8), position-arresting card (9) and screw mandrel (10), and screw mandrel (11) and sleeve (12) are formed, screw mandrel (10) is connected with the inner hole thread of screw mandrel (11), and screw mandrel (11) is outside to be connected with the inner hole thread of sleeve (12).

Compared with the prior art, the utility model in the operation of the indirect charged for replacement insulator of 35～220kv transmission line, can be applicable to the composition mode of various different circuit link gold utensils owing to rational in infrastructure, also can be suitable for the connection gold utensil of all size size.Both can change strain insulator list insulator string, also can change single insulator string that dangles.Have highly versatile, easy to operate, intensity height, safe and reliable characteristics.

Below in conjunction with accompanying drawing the utility model is described in further detail.

Accompanying drawing 1 is a front view of the present utility model;

Accompanying drawing 2 is a vertical view of the present utility model.

Embodiment of the present utility model: the kit when the utility model uses has common front end jig, insulation arm-tie, bottle supporting frame, action bars, splitting.The method of operation of the installation of front end jig and replacing insulator string, identical with common jig, the fixing means of rear end jig is as follows: when the plane parallel of the connection gold utensil of the ball-eye front side that links to each other with insulator during in vertical guide, rear end clamp (1) is penetrated the connection gold utensil; When the plane parallel that connects gold utensil during in the plane, with holding screw (3), fastening iron plate (4) and clamp nut (5) by hole (2) rear end clamp (1) with connect gold utensil and clamp fixing.Then an end of two wire grips (6) is inserted in the two ends of rear end clamp (1) respectively, fastening nut (7), the other end of wire grip (6) link to each other with the insulation arm-tie respectively.Install the bottle supporting frame again, operation wire grip (6) is transferred to wire tension on the line arm-tie.This moment, insulator string was in relaxed state, insulator string was separated with lead with splitting by action bars, can check and change monolithic or bunch of insulator.

The fixed form between rear end clamp (1) and connection gold utensil for convenience, the two ends of rear end clamp (1) and wire grip (6) be connected to flexible connection.After the position of rear end clamp (1) was determined, fastening nut (7) was with being connected and fixed between itself and wire grip (6).

In order to improve the stringing effect, wire grip (6) is by boosting-rod (8), position-arresting card (9) and screw mandrel (10), and screw mandrel (11) and sleeve (12) are formed, screw mandrel (10) is connected with the inner hole thread of screw mandrel (11), and screw mandrel (11) is outside to be connected with the inner hole thread of sleeve (12).Like this, during the boosting-rod action, screw mandrel (10) advances together with screw mandrel (11) or with moving back, raises the efficiency one times than general wire grip.

Claims

1, the general rear end of a kind of 35～220kv hot line maintenance jig, comprise wire grip (6), rear end clamp (1), it is characterized in that: the middle part of described rear end clamp (1) has hole (2) by symmetric position, is equipped with on hole (2) with insulator to connect holding screw (3), fastening iron plate (4) and the clamp nut (5) that gold utensil connects.

2, the general rear end of 35～220kv hot line maintenance according to claim 1 jig is characterized in that: described rear end clamp (1) is flexible connection with wire grip (6), and there is hold-down nut (7) at the both ends of rear end clamp (1).

3, the general rear end of 35～220kv hot line maintenance according to claim 1 and 2 jig, it is characterized in that: described wire grip (6) is by boosting-rod (8), position-arresting card (9) and screw mandrel (10), screw mandrel (11) and sleeve (12) are formed, screw mandrel (10) is connected with the inner hole thread of screw mandrel (11), and screw mandrel (11) is outside to be connected with the inner hole thread of sleeve (12).