CN202197048U

CN202197048U - Double angle steel hanging point lifting and connecting tool for tower use

Info

Publication number: CN202197048U
Application number: CN2011202341661U
Authority: CN
Inventors: 刘治稳; 李岩
Original assignee: Luoyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Current assignee: Luoyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Priority date: 2011-07-05
Filing date: 2011-07-05
Publication date: 2012-04-18
Anticipated expiration: 2021-07-05

Abstract

The present utility model relates to the power transmission line construction overhauling technology filed, and discloses a double angle steel hanging point lifting and connecting tool for tower use. In the tool, a clamping tool 1 is a U-shaped plate, two edges of the U-shaped plate are respectively integrated with right angle folded plates, the two right angle folded plates are symmetrical and provided with a connecting hole corresponding with an annular screw 3, the annular screw 3 is fixed with the clamping tool through a nut after passing through the connecting hole, and a circular ring of the annular screw 3 is connected with a cycling pulley 5. By adopting the tool, cross arm angle iron deformation can be avoided, tower personnel can stay on cross beams to fasten insulators without stepping off lines, working procedures are simplified, the working efficiency and the high altitude construction safety factor are increased, and the tool is simple in structure, convenient in use, simple in processing and manufacturing, low in production costs, and easy to popularize and apply.

Description

A kind of tower is with double angle hanging point lifting fastening means

Technical field

The utility model relates to power transmission sequence Construction and Maintenance technical field, relates in particular to a kind of tower with double angle hanging point lifting fastening means.

Background technology

At present; The single loop strain tower adopts mostly does the font tower; The drainage wire jumper string hanging point of this tower adopts double angle as shown in Figure 1 mostly, and the replacing method of this insulator wire jumper string adopts the palm cucurbit to change at present mostly, adopts the palm cucurbit to change some problems of depositing in practice.

Change the problem that exists with the palm cucurbit:

1, change the operation of need rolling off the production line of insulator wire jumper string with the palm cucurbit, drainage insulator wire jumper string is different with the insulator on the lead not to have tension force effect poor stability, and operating personnel's balanced capacity on line is poor, inefficiency.

2, the wire jumper insulator string that will prevent dust is changed compound wire jumper insulator string, also need be with about the rope ladder, and also there is potential safety hazard in inefficiency.

3, cooperate the lifting of steel wire cover with the palm cucurbit, be prone to cause the distortion of double angle hanging point, zinc pull-up to fall, influence the whole stressed and erosion resistance of cross-arm.

4, because drainage thread does not have the tension force promptly can be with the insulator pull-up with the circulation coaster; Overlap fixed block with steel wire; Because the steel wire cover is respectively reserved the grafting length of 300mm by the security regulations two ends; The stressed back of the inconvenience that is fastened and steel wire loop be prone to elongation cause apart from the insulator hanging point far away, can't colligation on the cross-arm in the effective range of lifting, though there is imagination seldom to use at present.

Summary of the invention

Based on change the problem that the wire jumper insulator string exists in real work; The utility model provides a kind of tower with double angle hanging point lifting fastening means; Personnel's manufactured without inserting winding can be accomplished more changing jobs of insulator in changing wire jumper insulator string process; Improved operating speed, reduced task difficulty, the operating efficiency of changing the wire jumper insulator string is increased substantially.

For realizing the foregoing invention purpose, the utility model adopts following technical scheme:

A kind of tower is with double angle hanging point lifting fastening means; Comprise: jig, fixedly jackscrew, ring-type screw, double angle hanging point, circulation coaster, said jig is " U " letter stencil, " U " letter stencil both sides constitute one with the right angle flap respectively; Two right angle flap symmetries; And be provided with the connecting hole with the ring-type screw, the ring-type screw passes connecting hole and jig is fixed through nut, and the annulus of ring-type screw links to each other with the circulation coaster.

Owing to adopt aforesaid technical scheme, the utlity model has following superiority:

1) application of the utility model; Cross-arm angle bar force way when having changed the insulator replacing; Stressed to change face into stressed with former single-point centralized load, avoided the distortion of cross-arm angle bar, guaranteed the cross-arm overall mechanical strength; Improve safety factor of workers, improved the safe operation of electrical network.

2) adopt the tool applications of the utility model, substituted the operational method that former steel wire rope sling is hung the palm cucurbit, overcome with the steel wire cover difficulty inconvenient and that need roll off the production line because of colligation position distance is installed.

3) with palm cucurbit operational method, need the circulation coaster to cooperate endless rope equally, also need transmit steel wire cover and palm cucurbit with endless rope; Use this instrument can shorten the cycle sliding spacing dangle the string hanging point distance; Realize that personnel's manufactured without inserting winding promptly can be accomplished the colligation to insulator on the tower on cross-arm, overcome with the steel wire cover difficulty inconvenient and that need roll off the production line because of colligation position distance is installed, adopt this operational method to simplify working procedure; Reduced construction tool; Improve the coefficient of safety of operating efficiency and work high above the ground, reduced the transport difficulty of poor transport area instrument, reduced labour intensity.

4) the utility model not only be fit to shown in figure one downward the installing and using in double-angle iron hanging point plane, also be applicable to shown in figure two double-angle iron hanging point plane installing and using up.

5) the utility model is not only applicable to dust-proof insulator and changes dust-proof insulator, is suitable for common insulator replacing dust-proof insulator and dust-proof insulator replacing yet and meets insulator.

6) tool construction of the utility model is simple, and is easy to use, and processing and fabricating is easy, and production cost is lower, is easy to apply.

Description of drawings

Fig. 1 is that double angle hanging point lifting fastening means hanging point double angle is towards last structure chart;

Fig. 2 is the prone structure chart of double angle hanging point lifting fastening means hanging point double angle;

Fig. 3 changes the operation sketch map of wire jumper string tool for the double angle hanging point;

Fig. 4 is the sketch map of double angle drainage wire jumper string;

Among the figure: 1. be jig, 2. for fixing jackscrew, 3. for the ring-type screw, 4. for the double angle hanging point, 5. be circulation coaster, 6. wire jumper string, 7. ground wire cross-arm, 8. drainage thread, 9. strain tower one end lead, 10. lead cross-arm, 11. corner blocks, 12. wire jumper string tops, 13. wire jumper string bottoms.

Embodiment

Like Fig. 1,2,3, shown in 4, a kind of tower comprises with double angle hanging point lifting fastening means: 1 is that jig, 2 is that fixedly jackscrew, 3 is that ring-type screw 4 is the circulation coaster for double angle hanging point 5; Said jig 1 is " U " letter stencil; " U " letter stencil both sides constitute one with the right angle flap respectively, two right angle flaps symmetries, and be provided with the connecting hole with ring-type screw 3; Ring-type screw 3 passes connecting hole and jig is fixed through nut, and the annulus of ring-type screw 3 links to each other with circulation coaster 5.

Concrete operations are following: carry on a shoulder pole jig 1 on the double-angle iron hanging point 4 with being installed in; Fixing with jackscrew 2; Fixing with the screw of ring-type 3, circulation coaster 5 is hung on ring-type screw 3 rings, on the tower personnel with the endless rope colligation on second porcelain vase of wire jumper insulator string; The cooperation personnel do not stress insulator through corner block 11 pulling ropes under the tower; Personnel take the wire jumper insulator string top 12 that links to each other with hanging point on the tower; The wire jumper insulator string is fallen on the cross-arm together with drainage thread; Personnel remove the wire jumper string 6 insulator bottoms 13 that link to each other with drainage thread down on the tower to the cross-arm place; Insulator is fallen earthward, and the wire jumper insulator string that will newly change is then moved lead cross-arm 10 places to the endless rope colligation and is loaded onto wire jumper insulator string bottom 13 and link to each other with drainage thread 8, and drainage thread 8 links to each other with strain tower one end lead 9; Spur the wire jumper insulator string that endless rope will newly change subsequently and move ground wire cross-arm 7 hanging point places to, wire jumper insulator string top 12 and hanging point are loaded onto the replacing of promptly accomplishing insulator.Also can bind new replacing insulator in the bottom; Utilize the gravity of the wire jumper insulator string of pulling down to cooperate manpower during the line of fall; The wire jumper insulator string of pulling down is fallen earthward, move the wire jumper insulator string of newly changing to lead cross-arm 10 places, carry out the installation of drainage wire jumper string by as above method.

Claims

1. a tower is with double angle hanging point lifting fastening means; It is characterized in that: comprising: jig (1), fixedly jackscrew (2), ring-type screw (3), double angle hanging point (4), circulation coaster (5); Said jig (1) is " U " letter stencil; " U " letter stencil both sides constitute one with the right angle flap respectively, two right angle flaps symmetries, and jig (1) right angle flap is provided with the connecting hole with ring-type screw (3); Ring-type screw (3) passes connecting hole and jig is fixed through nut, and the annulus of ring-type screw (3) links to each other with circulation coaster (5).