CN103979403A - Wire cable terminal lifting fixture as well as wire cable lifting method - Google Patents

Abstract

The invention belongs to the technical field of electric wire cable terminal lifting fixtures, and discloses a wire cable terminal lifting fixture as well as a wire cable lifting method. The wire cable terminal lifting fixture has the main technical characteristics that the wire cable terminal lifting fixture comprises a lifting hook and two branch sleeves, wherein the lower end of the sleeve is connected by a pin shaft and the two branch sleeves can be encircled to form the sleeve of which the upper end is provided with a bar-shaped notch; lifting plates which are integrally connected with the branch sleeves are arranged on the branch sleeves respectively; the upper ends of the lifting plates are provided with lifting rod holes; the insert end parts in the lifting rod holes are provided with lifting rods with lock nuts; the lifting hook comprises a carrying rod with a lifting hole in the upper end and a lifting hook body with the circular arc lower end; the lifting hook body is provided with at least two connecting holes which are ranked along the central line of the lifting hook body; the lifting rods are inserted into the connecting holes. In lifting, the two branch sleeves wrap the wire cable; the lower end of the lifting hook body passes through the bar-shaped notch, and presses the surface of the wire cable tightly, so that the sleeves cannot move along the direction of the wire cable; the insulation layer of the wire cable cannot be damaged, and the wire cable cannot fall off; the fixing before lifting and the detachment after lifting are convenient; the labor intensity is reduced greatly; the labor efficiency is improved greatly.

Description

Lifting jig for cable terminal head and cable lifting method

technical field

The invention belongs to the technical field of electric cable terminal lifting jigs, and in particular relates to a cable terminal lifting jig and a cable lifting method.

Background technique

When the cable is erected, the cable is first stretched along the line tower, and then the cable is hoisted and fixed on the line tower with a hoisting device. Mainly bind on the cable with ropes such as steel wire rope when cable hoisting at present, hang on the steel wire rope with the hook of hoisting equipment. This method has the following defects: one, the position of the cable cannot be firmly fixed when it is bound with a steel wire rope. Pulling the cable increases the labor intensity and reduces the laying efficiency; second, it is easy to cause damage to the insulation layer during the slideway of the wire rope sleeve; third, when the end of the cable is hoisted, the wire rope sleeve is easy to loosen and slip off , cause the cable that is hoisted to fall, not only damage to cable, but also easily cause the safety accident of casualty, its 4th, the labor intensity of wire rope binding and untie is big, and work efficiency is low.

Contents of the invention

The first technical problem to be solved by the present invention is to provide a cable terminal lifting jig that is easy to use, has good safety, does not easily slide the cable, does not cause damage to the cable, has high work efficiency and low labor intensity.

In order to solve the above-mentioned technical problems, the technical solution proposed by the present invention is: two sub-sleeves comprising a hook and a lower end connected by a pin shaft, which can enclose a casing with a bar-shaped notch at the upper end, and the sub-sleeves Suspension plates connected with sub-casings are respectively arranged on the upper side. Suspension rod holes are arranged on the upper ends of the suspension plates, and suspension rods with lock nuts at the ends are inserted into the suspension rod holes. The suspension hooks It includes a lifting rod with a lifting hole at the upper end and an arc-shaped hook body at the lower end. At least two connecting holes arranged along the center line of the hook body are arranged on the hook body, and the hanging rod is inserted into the in the connecting hole.

Its additional technical features are:

There are 3 connecting holes;

An adjustment lever is arranged at the end of the boom;

Both ends of the sleeve are provided with arc-shaped bends radially outward.

The second technical problem to be solved by the present invention is to provide a cable lifting method using the above-mentioned cable terminal head lifting jig.

In order to solve the problems of the technologies described above, the technical solution proposed by the present invention is:

The method includes the following steps:

Step 1: Open the lock nut and take out the boom from the boom hole;

Step 2: Separate the two sub-sleeves along the pin shaft;

Step 3: Wrap the two sub-sleeves on the cable, insert the suspender into the hole on one side of the suspender, select the connection hole visually according to the diameter of the cable, and insert the suspender into the connection hole and the other Lift the hook so that the lower end of the hook body passes through the strip-shaped gap and presses tightly on the surface of the cable. If the lower end of the hook body cannot be pressed tightly on the surface of the cable, replace other connecting holes. Press the surface of the cable tightly until the lower end of the hook body passes through the bar-shaped gap, and screw on the lock nut;

Step 4: Hang the hook of the lifting equipment on the lifting hole, and lift the cable;

Step 5: Fix the cable when it reaches the designated position;

Step 6: Open the lock nut, open the two sub-sleeves, and remove the two sub-sleeves from the cable.

Its additional technical features are:

In the fifth step, when the angle of the cable is inappropriate, the angle of the cable is adjusted by turning the adjustment lever, and when the angle of the cable is appropriate, the cable is fixed.

Compared with the prior art, the cable terminal head lifting jig and cable lifting method provided by the present invention have the following advantages: First, since the hook and the lower end are connected by pin shafts, the upper end can be surrounded by a bar-shaped The two sub-casings of the notched casing are respectively provided with hanging plates connected with the sub-casings above the sub-casings, and a boom hole is arranged at the top of the hanging plate, and a boom hole is installed in the boom hole. A suspension rod with a lock nut is inserted at the end, and the suspension hook includes a lifting rod with a suspension hole at the upper end and an arc-shaped suspension hook body at the lower end. The connecting hole arranged on the center line of the hook body, the boom is inserted into the connecting hole, when hoisting, wrap the two sub-sleeves on the cable, insert the boom into the hole on one side of the boom, according to the diameter of the cable If necessary, select the connection hole by visual inspection, insert the boom into the connection hole and the boom hole on the other side, lift the hook so that the lower end of the hook body passes through the bar-shaped gap and presses tightly on the surface of the cable. If the lower end of the hook body cannot be tightly pressed on the surface of the cable, replace other connecting holes until the lower end of the hook body passes through the bar-shaped gap and is tightly pressed on the surface of the cable, and screw on the lock nut. In the middle, the lower end of the hook body passes through the strip-shaped gap and is tightly pressed on the surface of the cable, so that the sleeve will not move along the direction of the cable; it will not cause damage to the insulation layer of the cable, nor will it cause the cable to fall off, which is safe The performance is greatly improved, and when hoisting, according to the cables of different diameters, different connecting holes can be replaced, and the application range is greatly improved; the fixing before hoisting and the disassembly after hoisting are more convenient, the labor intensity is greatly reduced, and the labor efficiency is greatly improved; Its two, because there are 3 connecting holes, it can not only ensure the strength of the hook body, but also meet the requirements of cables of similar models; When the cable reaches the line tower, the angle of the cable may be different from the required fixed angle. By turning the adjustment lever, the cable can be easily adjusted to the required fixed angle; Both ends of the bushing are provided with arc-shaped bends radially outward, which avoids damage to the line insulation layer caused by the two ends of the bushing during hoisting.

Description of drawings

Fig. 1 is a schematic structural view of the cable terminal head lifting jig of the present invention;

Fig. 2 is the structural representation of suspension hook;

Fig. 3 is the schematic diagram of the structure after the casing is deployed;

Fig. 4 is a schematic diagram of the structure of the cable terminal head lifting jig in use.

Detailed ways

The cable terminal head lifting jig and cable lifting method proposed by the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Fig. 1, Fig. 2 and Fig. 3, it is a schematic diagram of the structure of the cable terminal head lifting jig provided by the present invention. The cable terminal head lifting jig includes a suspension hook 5 and two The sub-casings 3 and 4, the sub-casings 3 and 4 enclose the casing 6 with a strip-shaped notch 1 at the upper end, and above the sub-casings 3 and 4 are respectively provided with the hanging tubes connected with the sub-casings 3 and 4. Plates 7 and 8 are provided with a boom hole 9 at the upper end of the suspension board 7 and 8, and a boom 11 with a lock nut 10 at the end is inserted into the boom hole 9, and the hook 5 includes a hook with a hanging hole 51 at the upper end. The lifting rod 52 and the hook body 53 in the shape of an arc at the lower end are provided with at least two connecting holes 54 arranged along the midline of the hook body 53 on the hook body 53 , and the boom 11 is inserted into the connecting holes 54 . As shown in Figure 4, when hoisting, wrap the two sub-sleeves 3 and 4 on the cable 12, insert the boom 11 into the boom hole 9 on one side, and select it visually according to the diameter of the cable 12. Connecting hole 54, and insert the boom 11 into the connecting hole 54 and the boom hole 9 on the other side, lift the boom 11, so that the lower end of the hook body 53 passes through the strip-shaped gap 1 and is tightly pressed against the surface of the cable . If the lower end of the hook body 53 cannot be pressed tightly on the surface of the cable 12, replace other connecting holes 54 until the lower end of the hook body 53 passes through the strip-shaped gap 1 and is pressed tightly on the surface of the cable 12. During the hoisting process, The lower end of the hook body 53 passes through the strip-shaped gap 1 and presses tightly on the surface of the cable 12, so that the sleeve 6 will not move along the direction of the cable; it will not cause damage to the insulation layer of the cable, nor will it cause the cable to fall off , and during hoisting, according to different diameter cables, just replace different connecting holes, which greatly improves the application range; it is more convenient to fix before hoisting and disassemble after hoisting, the labor intensity is greatly reduced, and the labor efficiency is greatly improved.

There are three connecting holes 54, which can not only ensure the strength of the hook body 53, but also meet the requirements of cables of similar types.

The end of the suspender 11 is provided with a position adjustment lever 13. When the cable reaches the line tower, the angle of the cable may be different from the required fixed angle. By turning the position adjustment lever 13, the Adjust the cable to the desired fixed angle.

Both ends of the bushing 6 are provided with arc-shaped bends 14 radially outward to avoid damage to the line insulation layer at both ends of the bushing during hoisting.

The method of lifting the cable by using the cable terminal head lifting fixture, the method includes the following steps:

The first step: open the lock nut 10, and take out the boom 11 from the boom hole 9;

The second step: separate the two sub-sleeves 3 and 4 along the pin shaft 2;

Step 3: Wrap the two sub-sleeves 3 and 4 on the cable 12, insert the boom 11 into the hole 9 on one side of the boom, and select the connection hole 54 visually according to the diameter of the cable, and insert the boom 11 is inserted into the connection hole 54 and the suspension rod hole 9 on the other side, and the suspension hook 5 is lifted so that the lower end of the suspension hook body 53 passes through the strip-shaped gap 1 and is pressed tightly on the surface of the cable 12. If the suspension hook body 53 The lower end cannot be tightly pressed on the surface of the cable 12, and other connecting holes 54 are replaced until the lower end of the hook body 53 passes through the strip-shaped gap 1 and is pressed tightly on the surface of the cable 12, and the lock nut 10 is screwed on;

Step 4: Hang the hook of the lifting device on the lifting hole 51, and lift the cable;

Step 5: Fix the cable when it reaches the designated position;

Step 6: Open the lock nut, open the two sub-sleeves, and remove the two sub-sleeves from the cable.

In the fifth step, when the angle of the cable is inappropriate, the angle of the cable is adjusted by turning the adjustment lever 13 , and then the cable is fixed when the angle of the cable is appropriate.

The scope of protection of the present invention is not limited to the above-mentioned embodiments, as long as the structure is the same as that of the clamp for lifting the cable terminal head of the present invention, it falls within the scope of protection of the present invention.

Claims (6)

1. cable terminations head promotes jig, it is characterized in that: comprise that suspension hook is connected by bearing pin with lower end, can surround upper end with two minutes sleeve pipes of the sleeve pipe of bar v notch v, at described minute, above sleeve pipe, be respectively arranged with the boatswain chair being connected as a single entity with minute sleeve pipe, in described boatswain chair upper end, be provided with boom hole, in described boom hole, insert end with the suspension rod of jam nut

Described suspension hook comprises that upper end is with the circular-arc hook of shadoof and lower end of lifting hole(eyelet), is provided with the connecting bore that at least two center lines along hook are arranged on described hook, and described suspension rod inserts in described connecting bore.

2. cable terminations head according to claim 1 promotes jig, it is characterized in that: described connecting bore is 3.

3. cable terminations head according to claim 1 promotes jig, it is characterized in that: in described suspension rod end, be provided with positioning driving lever.

4. cable terminations head according to claim 1 promotes jig, it is characterized in that: at described sleeve pipe two ends, be provided with the bowing to its radial outside.

5. right to use requires the cable terminations head described in 1,2,3 or 4 to promote the method that jig promotes cable, it is characterized in that: the method comprises the following steps:

The first step: jam nut is opened, suspension rod is taken out from boom hole;

Second step: two minutes sleeve pipes are broken into two with one's hands along bearing pin;

The 3rd step: two minutes sleeve pipes are wrapped on cable, suspension rod is inserted to a side boom hole, according to the needs of cable diameter, connecting bore is selected in first range estimation, and suspension rod is inserted to the boom hole of this connecting bore and opposite side, suspension hook is mentioned, make the lower end of hook tightly be pressed in cable surface through bar v notch v, if the lower end of hook can not tightly be pressed in cable surface, change other connecting bore, until the lower end of hook is tightly pressed in cable surface through bar v notch v, and jam nut is screwed on;

The 4th step: the hook of weight-lifting equipment is hung on lifting hole(eyelet), cable is lifted by crane;

The 5th step: when cable arrives assigned address, cable is fixed;

The 6th step: open jam nut, and two minutes sleeve pipes are opened, from cable, two minutes sleeve pipes are taken off.

6. use line ball cable terminals according to claim 5 promote the method that jig promotes cable, it is characterized in that: in described the 5th step, when cable angle is improper, by the rotation driving lever of transposing, regulate cable angle, when cable angle is suitable, then cable is fixed.