CN104682249A

CN104682249A - Straightening and shearing tool for secondary return conductor

Info

Publication number: CN104682249A
Application number: CN201310637753.9A
Authority: CN
Inventors: 于铭凯; 王志军
Original assignee: State Grid Corp of China SGCC; State Grid Liaoning Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; State Grid Liaoning Electric Power Co Ltd
Priority date: 2013-12-03
Filing date: 2013-12-03
Publication date: 2015-06-03
Anticipated expiration: 2033-12-03
Also published as: CN104682249B

Abstract

The invention relates to a straightening and shearing tool for a secondary return conductor. The straightening and shearing tool is characterized by comprising a housing, wherein the housing is composed of an upper housing and a lower housing which are folded and closed through a foldout; two pairs of rolling rollers which are positioned in the same perpendicular plane are distributed in the housing; each pair of the rolling rollers is composed of an upper and lower rolling rollers which are fixed in the upper and the lower housings through rotary shafts respectively; a plurality of slots are adhered and correspondingly formed in peripheral surfaces of the upper and the lower rolling rollers; a wire inlet and a wire outlet are formed in positions, corresponding to the slots, of the housing respectively; a shearing device is arranged in the wire outlet. The straightening and shearing tool is simple in structure, convenient to use, and remarkably improved in inspection and repair efficiency, and does not cause damages to an external insulating layer of a conductor.

Description

The stretching cutting implement of secondary circuit wire

Technical field

the present invention relates to the aid, the particularly stretching cutting implement of a kind of secondary circuit wire that secondary circuit wire are carried out in wiring process.

Background technology

Power equipment circuit breaker, isolating switches etc. have motor-operating mechanism, the wire that secondary circuit is used has been covered with in mechanism case, when there is secondary circuit failure in equipment, usually a part of wire to be investigated, if fault occurs on wire, then damaged conductor will be changed, layout and the trend of original wire is often broken after replacing, repeatedly occur that analogue can make mechanism case inner cable connect chaotic, for looking up the fault causes unnecessary trouble, in wiring process, be also likely connected to the contact of mistake, cause the faults such as equipment phase shortage or reversion, become a kind of hidden danger destroying power system stability.Occur in order to this phenomenon can be avoided, shorten troubleshooting time, Field Force often wants first that wire is stretching, connect up, and two modes of dragging are fallen in main employing one in the process of stretching wire, the insulating barrier of such mode to wire has very large damage again, also likely cause wire strand breakage, especially when temperature is lower, this kind of method will be no longer feasible, for winter job brings difficulty.

Summary of the invention

The object of the invention is the stretching cutting implement of secondary circuit wire in order to provide a kind of structure simple, easy to use, significantly improving overhaul efficiency, and damage can not be caused to wire external insulation.

Technical scheme of the present invention is:

The stretching cutting implement of a kind of secondary circuit wire, its special character is: it has housing, described housing forms by utilizing the upper and lower casing of folding folded closed, two are furnished with to the roll being positioned at same vertical plane in described housing, often pair of described roll is made up of the upper and lower roll utilizing rotating shaft to be separately fixed in described upper and lower casing, described upper and lower roll side face is fitted and correspondence is provided with multiple wire casing, the corresponding described wire casing position of described housing is respectively equipped with line inlet port and line outlet, and described line outlet position is provided with shear.

Described shear is the blade being fixed on line outlet top, and the corresponding blade position in described line outlet top is provided with groove, can cut off wire to facilitate the backward upper firmly lift of the wire of the stretching Len req of staff.

Described line inlet port is bell mouth shape, to avoid Damage to insulation layer in wire importing process.

The position of the fixing described rotating shaft of described upper and lower casing correspondence is provided with bearing, to ensure that rotating shaft is rotated under the drive of roll, externally output lead.

Described rotating shaft and roll adopt key connecting.

The material of described roll is bakelite.

The invention has the beneficial effects as follows:

1, after wire enters the wire casing of roll, pull the wire at line outlet place, adopt the stretching wire of automanual mechanical type, it utilizes the pressure of roll to make wire be fixed in groove, and the rolling characteristics of recycling roll reduces the damage of frictional force to wire insulation, compared to on-the-spot one falling two forms of construction work of dragging and be greatly improved before, this tool size is moderate, easy and simple to handle, substantially increase overhaul efficiency, improve maintenance craft.And decrease the mistake occurred in wiring process, and make mechanism case inside conductor move towards very clear, beautiful and clean, improve efficiency and the fail safe of installation, further ensure that the reliability service of electrical network.

2, shear realizes next step action of stretching wire, avoids the trouble that staff also will carry cutting implement, very convenient.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention;

Fig. 2 is along A-A profile in Fig. 1;

Fig. 3 is the B direction view of Fig. 2.

In figure: upper shell 1, lower house 2, bearing 3, rotating shaft 4, roll 5, folding 6, wire casing 7, line inlet port 8, line outlet 9, blade 10.

Embodiment

As shown in the figure, the stretching cutting implement of this secondary circuit wire, it has housing, and described housing forms by utilizing the upper and lower casing 1,2 of folding 6 folded closed.Two are furnished with to the roll 5 being positioned at same vertical plane in described housing, often pair of described roll 5 is made up of the upper and lower roll utilizing rotating shaft 4 to be separately fixed in described upper and lower casing 1,2, for ensureing that rotating shaft 4 is rotated under the drive of roll 5, the position of the fixing described rotating shaft 4 of described upper and lower casing 1,2 correspondence is provided with bearing 3.Described rotating shaft 4 adopts key connecting with roll 5.The material of described roll 5 is bakelite.Described upper and lower roll side face is fitted and correspondence is provided with multiple wire casing 7, and to adapt to the wire of sizes, corresponding described wire casing 7 position of described housing is respectively equipped with line inlet port 8 and line outlet 9.For avoiding Damage to insulation layer in wire importing process, described line inlet port 8 is in bell mouth shape.

In addition, line outlet 9 position is provided with shear, and described shear is the blade being fixed on line outlet top, and the corresponding blade position in described line outlet top is provided with groove, and namely blade is arranged in groove, to prevent damage wires.

During use, open, lower house 1, 2, line inlet port 8 will be put into by stretching wire, in wire casing 7 on the roll 5 corresponding with its size and line outlet 9, on closed, lower house 1, 2, and press with hand, utilize the control of hand breaker roll 5 pressure, wire is allowed tightly to be fixed in wire casing 7, wire is extracted out at line outlet 9 end by another hand, the rolling force of roll 5 can make wire smoothly extract out, the crust insulating barrier of wire can not be made impaired, and the clamping force of wire casing 7 can allow the bending place of wire straighten, after the wire pull-out certain length straightened, staff lifts wire and is promoted to blade 10 to the groove at line outlet place and cuts off wire, scene can be directly used in, convenient and swift.

Claims

1. the stretching cutting implement of secondary circuit wire, it is characterized in that: it has housing, described housing forms by utilizing the upper and lower casing of folding folded closed, two are furnished with to the roll being positioned at same vertical plane in described housing, often pair of described roll is made up of the upper and lower roll utilizing rotating shaft to be separately fixed in described upper and lower casing, described upper and lower roll side face is fitted and correspondence is provided with multiple wire casing, the corresponding described wire casing position of described housing is respectively equipped with line inlet port and line outlet, and described line outlet position is provided with shear.

2. the stretching cutting implement of secondary circuit wire according to claim 1, is characterized in that: described shear is the blade being fixed on line outlet top, and the corresponding blade position in described line outlet top is provided with groove.

3. the stretching cutting implement of secondary circuit wire according to claim 1, is characterized in that: described line inlet port is bell mouth shape.

4. the stretching cutting implement of secondary circuit wire according to claim 1, is characterized in that: the position of the fixing described rotating shaft of described upper and lower casing correspondence is provided with bearing.

5. the stretching cutting implement of secondary circuit wire according to claim 1, is characterized in that: described rotating shaft and roll adopt key connecting.

6. the stretching cutting implement of secondary circuit wire according to claim 1, is characterized in that: the material of described roll is bakelite.