CN2181109Y

CN2181109Y - Return device for vibration-proof hammer position moving

Info

Publication number: CN2181109Y
Application number: CN 93245837
Authority: CN
Inventors: 何成立; 万相和; 曹海林
Original assignee: Xingtai Power Supply Co Ltd
Current assignee: Xingtai Power Supply Co Ltd
Priority date: 1993-11-25
Filing date: 1993-11-25
Publication date: 1994-10-26
Anticipated expiration: 2003-11-25

Abstract

The utility model discloses an anti-vibration hammer maintenance tool for the earth wire of a transmission line rack. A pulley wheel is fixed between the upright backs of two symmetrical brackets, crank arms are installed at the front end of the brackets, the crank arms are connected with a draw rod, the draw rod is connected with baffle plates, the baffle plates are embedded in the sliding slots of the brackets, a spring is sheathed at the middle part of the draw rod, the spring is positioned by a top thread seat, and pull rings are sheathed on the arms which are positioned between the sliding slots of the brackets. The utility model has the advantages of simple structure, small volume, flexible operation, convenient operation and strong practicability. In particular, the utility model can be operated when the electric supply is not cut off, so the continuous production of the electric user can be ensured.

Description

Return device for vibration-proof hammer position moving

The utility model relates to a kind of device of maintenance cable, specifically a kind of maintenance tool of overhead ground wire stockbridge damper.

On 35 kilovolts and following transmission line, be equipped with overhead ground wire, for preventing the shake of trembling of overhead ground wire, generally all installed stockbridge damper additional.Because GJ-35 and following overhead ground wire diameter are thinner, stockbridge damper is difficult for fixation, and the positioning phenomenon often takes place, and causes shockproof effect to descend.For the stockbridge damper return is fixed, can on overhead ground wire, hang insulating ladder or driving, last people's maintenance.But thinner because of the line footpath, load increases, the serious accident that very easily causes broken string to have a power failure.Therefore the General Maintenance mode is to have a power failure ground wire is dropped to the ground maintenance.And be very big to the influence of electricity consumer and industrial and agricultural production this moment, the also corresponding increase of maintenance load.

The purpose of this utility model just provides a kind of need the power failure can carry out the special-purpose maintenance tool of stockbridge damper return operation, with handled easily, does not influence normal power supply.

The utility model is achieved in that fixed block between the upright back of the body of two symmetrical L type supports, and by the fixing connecting lever of rotating shaft, pull bar one end and connecting lever join in support front end one side, and the other end joins with the baffle plate that is set on the sliding tray of the upright back of the body of support bottom.At pull bar middle part socket spring, this spring is by spacing trepanning one side at the jackscrew seat of active block stop, and jackscrew is screwed on the jackscrew seat.Have sliding tray at the horizontal base of support along upright Dorsal root portion, draw ring is enclosed within on the arm between support two sliding trays.The attendant along in the vertical rod by overhead ground wire, on ground wire, the lower end of the rope that passes from draw ring is by the stockbridge damper of ground staff's tractive to positioning with this recurrence device frame.When recurrence device front end leaned the upright handle of stockbridge damper, the connecting lever revolution was gone into upright sleeve in the neutral gear of support forearm, and connecting lever goes back to original position under the power effect of the top of spring and pull bar simultaneously, entangles upright handle firm.Return the lead rope again, stockbridge damper can be retracted original position, the people in the power transmission line vertical rod retightens stockbridge damper, takes down the recurrence device then and promptly finishes maintenance operation.Can realize the operation that do not have a power failure thus, and efficient and convenient.

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

Fig. 1 is plan structure figure of the present utility model.

Fig. 2 is the upward view of Fig. 1.

As shown in Figure 1, 2, support 1 is two L-shaped iron plates, and two L shaped the upright back of the body is relative, and pulley 3 is equipped with in the centre.Pulley 3 best way are to adorn three altogether, and are the front in the same plane with the pulley centre, and the pulley horizontal level of rearmost end is higher than preceding two pulleys.This design is at the tenesmus of overhead ground wire middle part, the state characteristic specialized designs that is near vertical rod place, so that this recurrences device is when pulling back close vertical rod place, the front and back pulley contacts with ground wire and supports the recurrence device, thereby improve the straight stability that returns device, prevent to tilt to fall.While can also prevent because of the stockbridge damper nut too loosening, and grooving is clamped overhead ground wire and the phenomenon of stockbridge damper " dead position " is taken place.Pulley 3 is to be connected with support by bolt.Support 1 front portion is two arm shapes that stretch out, and front end has translot, is fixed with connecting lever 4 in front end one side by rotating shaft 5, one end of connecting lever 4 is stuck in the translot of support forearm, pull bar 6 one ends and connecting lever 4 join, and other end bending is joined with the baffle plate 8 that is set on the upright back of the body of the support bottom sliding tray 13.Baffle plate 8 is the H shape, and intermediate recesses is embedded in the sliding tray.Spring 7 is enclosed within pull bar 6 middle parts, and an end is withstood by the projection on the pull bar 6, and the other end is by active block stop 12 spacing trepanning one sides at jackscrew seat 9.Jackscrew 10 is screwed on the jackscrew seat 9.By regulating jackscrew 10, the activity surplus of compensation linkage in the trepanning of jackscrew seat 9, thereby the revolution elasticity of adjustment connecting lever 4.Have sliding tray 14 at the horizontal base of support 1 along upright Dorsal root portion, draw ring 11 is enclosed within on the arm between support two sliding trays.For guaranteeing to return steadily sliding of device, on two L framves, all offer sliding tray, install draw ring additional, rope is enclosed within simultaneously on two draw rings and draws, thereby reaches steady action.As shown in Figure 1, when draw ring 11 moves to left, lean baffle plate 8, under the power effect of the top of spring 7, make to return the device motion.When the transverse arm of connecting lever 4 was met obstacle (stockbridge damper founds handle), block 8 pushing drawing rods 6 overcame the top power of spring 7 and connecting lever are clockwise rotated, thereby make the transverse arm turn-off of connecting lever, lighten import, and the upright handle of stockbridge damper enters neutral gear.This moment, the transverse arm resistance of connecting lever 4 disappeared, and spring 7 pushes up back pull bar 6, and transverse arm is set back, thereby has entangled upright handle firm.Again draw ring 11 right sides are drawn, can realize that stockbridge damper is at the smooth return that returns under the device effect.

Be connected with backplate 15 down in support 1 horizontal base outer, can lower the center of gravity like this.Be welded with balancing stand 2 outside the backplate down, so more strengthening the smoothness that returns device integral body.

Utilize this device, the maintenance of stockbridge damper need not had a power failure, recruitment three people take 30 minutes, economize people saving of labor, have guaranteed finishing of electricity sales amount index simultaneously.This apparatus structure is simple, and volume is little, and flexible and convenient operation is practical.

Claims

1, a kind of stockbridge damper positioning returns device, it is characterized in that between the upright back of the body of the L of two symmetries type support 1, being fixed with pulley 3, in front end one side of support 1 by the fixing connecting lever 4 of rotating shaft 5, pull bar 6 one ends and connecting lever 4 join, the other end joins with the baffle plate 8 that is set on the upright back of the body of the support bottom sliding tray 13, at pull bar 6 middle part socket springs 7, spring is by active block stop 12 spacing trepanning one sides at jackscrew seat 9, jackscrew 10 is screwed on the jackscrew seat 9, have sliding tray 14 at the horizontal base of support 1 along upright Dorsal root portion, draw ring 11 is enclosed within on the arm between support two sliding trays.

2, stockbridge damper positioning according to claim 1 returns device, it is characterized in that pulley 3 is equipped with three altogether, and the pulley horizontal level of rearmost end is higher than preceding two pulleys.

3, stockbridge damper positioning according to claim 1 and 2 returns device, it is characterized in that support 1 horizontal base outer connects backplate 15 down, is connected to balancing stand 2 in following backplate 1 outside.