CN104037658B - Pendency glass insulator strings promotes system - Google Patents

Abstract

The invention discloses a lifting system for hanging glass insulator strings, which includes a fixed rod, a first take-up and release device, a second take-up and release device, an insulator string clamp and two fixed pulleys, the fixed rod is fixed at one end of the cross arm, and 2 Two fixed pulleys are fixed on the fixed rod, and the first take-up and release device is connected with the insulator string clamp through the first connecting rope; the insulator string clamp is also connected with two second connecting ropes, and the other ends of the two second connecting ropes are Each winds around a fixed pulley and winds on the second take-up and pay-off device. When using the lifting system of the present invention to lift the insulator string fixture, the insulator string fixture is pulled tightly by the first connecting rope and the second connecting rope from the bottom and the upper direction, so that the insulator string can be sent to the high altitude stably and quickly, which can solve the problem of In the prior art, there is a problem that the insulator string is shaking in the air when it is lifted, and it is more convenient and safe to operate the second take-up and release device on the bottom surface to lift the insulator string, and it has the advantages of convenient use and strong flexibility.

Description

Suspended Glass Insulator String Lifting System

technical field

The invention relates to the technical field of power line maintenance, in particular to a lifting system for hanging glass insulator strings.

Background technique

The insulator is the main body of power transmission line insulation. Its purpose is to suspend the wire and keep the wire insulated from the tower and the earth. It should have high mechanical strength, good insulation performance, not be affected by sharp changes in strength, and resist natural erosion and aging. features. The material of the insulator generally adopts porcelain and toughened glass, and synthetic materials are also useful. Suspension insulators are often assembled into strings in transmission lines with a voltage level of 35KV and above. Suspension insulators generally form insulator strings and are used on lines with different voltage levels. At present, the insulators produced in my country are divided into two types: ordinary type and anti-pollution type. Tempered glass suspension insulators have the advantages of small size, light weight, good performance, standardized metal attachment connection structure, high strength, large creepage distance, not easy to aging, and convenient maintenance.

In the prior art, clamps are generally used to clamp the lower end of the insulator string to lift the hanging glass insulator string to the overhead line. During the lifting process, it is easy to shake from side to side in the air and is difficult to control. In addition, in the prior art, the insulator strings are lifted to high altitude by the staff applying force at high altitude. The high-altitude operation is not only inconvenient for applying force and lifting, but also has certain dangers.

Contents of the invention

The technical problem to be solved by the present invention is to provide an easy-to-control lifting system for hanging glass insulator strings. The lifting system can reduce the shaking during the lifting process of the insulator strings, and the insulator strings can be lifted on the ground with high safety.

The technical solution adopted by the present invention to solve the above problems is:

Hanging glass insulator string lifting system, including a fixed rod, a first take-up and release device, a second take-up and release device, an insulator string clamp and two fixed pulleys, the fixed rod is fixed at one end of the cross arm, and the two fixed pulleys The pulley is fixed on the fixed rod, the first take-up and pay-off device and the second take-up and take-off device are both arranged on the ground, and two first connecting ropes are wound on the first take-up and take-off device, which pass through the two A first connecting rope is connected to the insulator string fixture; two second connecting ropes are also connected to the insulator string fixture, and the other ends of the two second connecting ropes are respectively wound around a fixed pulley and then wound on the second receiving pulley. on the pay-off device. In this scheme, the fixed pulley and the second take-up and release device form a lifting device, which plays a role in lifting the insulator string clamp; the first take-up and release device tightens the insulator string fixture from the lower end, and plays a stabilizing role. When the second take-up and pay-off device lifts the insulator string clamp through the two second connecting ropes, the first take-up and pay-off device tightens the first connecting rope from below and cooperates with the lifting device to slowly pay off the wire, so that the insulator string fixture It is tightened by the first connecting rope and the second connecting rope from the lower and upper directions to prevent the entire insulator string fixture and the insulator string on it from shaking in the air, so that the insulator string can be sent to the sky stably and quickly.

Further, both the first take-up and take-off device and the second take-up and take-off device include a bracket and a take-up and take-off wheel fixed on the bracket.

As a further improvement of the present invention, the insulator string jig includes a first jig and a second jig, both of which are in the shape of a semicircle, and the semicircular first jig and the semicircle Both ends of the ring-shaped second fixture are bent outward to form a mounting ear, and the corresponding mounting ears of the first fixture and the second fixture are movably connected through a connecting shaft, and one end of the connecting shaft is threaded with a nut; the connecting shaft is also provided with a U-shaped lug, one end of the U-shaped lug is placed on the connecting shaft between the nut and the mounting ear closest to the nut, and the other end is fixed on the connecting shaft that is not connected to the nut. On one end, each of the two second connecting ropes is connected to a U-shaped lifting lug; each of the upper end surfaces of the first fixture and the second fixture is provided with a coaming plate, and each of the outer peripheral surfaces is provided with a fixed ring, and the surrounding board is an arc-shaped board whose radius gradually increases from bottom to top, and each of the two fixing rings is connected with a first connecting rope. In this solution, a coaming plate and a fixing ring are added to the insulator string fixture. The coaming plate can prevent the insulator string from tilting or falling over on the insulator string fixture, and the two fixing rings are connected to the above-mentioned first connecting rope and pulled from below. The tight insulator string clamp can prevent the entire insulator string clamp and the insulator string on it from skewing and shaking in the air, so that the insulator string can be sent to the sky stably and quickly.

Further, the two mounting ears of the first clamp are also provided with limit rods, and the two mounting ears of the second clamp are provided with through holes corresponding to the limit rods, and the limit rods pass through located in the through hole.

Further, the limit nut is screwed to the end of the limit rod to improve the stability of the insulator string fixture.

Preferably, the two fixing rings are respectively installed at the highest points of the arcs of the first clamp and the second clamp, which are more convenient and labor-saving when connected to the first connecting rope for control.

In sum, the beneficial effects of the present invention are:

1. The hanging glass insulator string lifting system of the present invention is provided with the lifting device of the lifting insulator string fixture composed of the fixed pulley and the second take-up and release device and the first take-up and release device of the stable insulator string fixture, and the insulator string is lifted When clamping, the first take-up and release device tightens the first connecting rope from below, and cooperates with the lifting device to slowly release the wire, so that the insulator string fixture is held by the first connecting rope and the second connecting rope from the bottom and the top. Tensioning in one direction can prevent the entire insulator string fixture and the insulator string on it from shaking in the air, so that the insulator string can be sent to high altitude stably and quickly;

2. The insulator string fixture used in the present invention is provided with a coaming plate and a fixing ring, the coaming plate can prevent the insulator string from tilting or tilting on the insulator string fixture, and the two fixing rings can be connected to the above-mentioned first connecting rope, Prevent the entire insulator string clamp and the insulator string on it from skewing and shaking in the air;

3. The invention operates the second wire take-up and release device on the ground to lift the insulator string fixture, making the ground operation more convenient and safe.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural view of the insulator string jig of the present invention;

Fig. 3 is a schematic diagram of the structure of the insulator string fixture after the shroud is removed.

Marks and corresponding component names in the attached drawings:

1-first fixture; 2-second fixture; 3-installation ear; 4-connecting shaft; 5-nut; 6-U-shaped lifting eye; 7-coaming plate; 8-fixing ring; ;10-through hole; 11-limit nut; 12-fixed rod; 14-the first take-up and release device; 15-the second take-up and take-off device; A connecting rope; 19-the second connecting rope; 20-cross arm.

detailed description

The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

Example 1:

As shown in Figure 1, the hanging glass insulator string lifting system includes a fixed rod 12, a first take-up and pay-off device 14, a second take-up and pay-off device 15, an insulator string clamp 16 and two fixed pulleys 17, and the fixed rod 12 One end of the cross arm 20 fixed on the utility pole tower, the two fixed pulleys 17 are fixed on the fixed rod 12, the first take-up and pay-off device 14 and the second take-up and pay-off device 15 are all arranged on the ground and include Support and the take-up and pay-off wire wheel that are fixed on the support.

Two first connection ropes 18 are wound on the take-up and take-off reel of the first take-up and take-off device 14, which are connected with the insulator string fixture 16 through the two first connection ropes 18; the insulator string fixture 16 Two second connecting ropes 19 are also connected on the top, and one end of the two second connecting ropes 19 is connected to the insulator string fixture 16, and the other end goes around the fixed pulley 17 and then winds around the take-up and pay-off pulley of the second take-up and take-off device 15. On, every second connecting rope 19 walks around a fixed pulley 17. In this embodiment, the fixed pulley 17 and the second retracting and releasing device 15 are used to lift the insulator string clamp 16, and the two second connecting ropes 19 respectively bypass a fixed pulley 17, and the first end is connected to the insulator string clamp 16, The end is wound on the take-up and take-off wheel of the second take-up and take-off device 15 . When the take-up and pay-off wheel of the second take-up and pay-off device 15 is rotated and the second connecting rope 19 is tightened and wound on the take-up and pay-off wheel, the insulator string clamp 16 is lifted to a high altitude, and the first take-up and pay-off device 14 tightens the first One connects the connecting rope 18 and cooperates with the second wire take-up and release device 15 to slowly pay off the wire. During the lifting process, the insulator string fixture 16 is pulled tight by the first connecting rope 18 and the second connecting rope 19 from the bottom and the top. To prevent the whole insulator string jig 16 and the insulator string on it from shaking in the air, so that the insulator string can be delivered to high altitude stably and quickly. In this embodiment, the second take-up and pay-off device 15 can be operated on the ground, which is more convenient and safer than at high altitude.

Example 2:

As shown in Figure 2 and Figure 3, the hanging glass insulator string fixture includes a first fixture 1 and a second fixture 2, both of which are in the shape of a semicircle, that is, a semicircle in the center Shaped hollow structure, the first fixture 1 and the second fixture 2 are installed together in the form of two semicircular hollow structures adjacent to each other, so that the two semicircular hollow structures constitute a circular installation for fixing the hanging glass insulator string holes; both ends of the first fixture 1 and the second fixture 2 are bent outward, and a mounting ear 3 is formed at both ends of the first fixture 1 and the second fixture 2, and there are 4 mounting ears 3 in total. The mounting ears 3 corresponding to the first fixture 1 and the second fixture 2 are movably connected through the connecting shaft 4, that is, the mounting ears 3 can slide left and right on the connecting shaft 4 (the mounting ears 3 are slidably connected to the connecting shaft 4), The connecting shaft 4 can also rotate in the through hole of the mounting ear 3; one end of the connecting shaft 4 is threaded with a nut 5 for adjusting the distance between the mounting ears 3 of the first fixture 1 and the second fixture 2 , to clamp or loosen the hanging glass insulator string, specifically: when the hanging glass insulator string needs to be clamped, first unscrew the nut 5 toward the end of the connecting shaft 4, and loosen the two mounting ears 3 , the two mounting lugs 3 move separately toward the two ends of the connecting shaft 4, increasing the radius of the circular mounting hole formed by the first fixture 1 and the second fixture 2; then install the lower end of the hanging glass insulator string to the circle In the mounting hole, move the two mounting ears 3 towards the middle of the connecting shaft 4 to clamp the lower end of the hanging glass insulator string; finally, screw the nut 5 in the direction of the mounting ear 3 to clamp the hanging glass insulator string; it needs to be removed When hanging the string of glass insulators, unscrew the nut 5 toward the end of the connecting shaft 4, loosen the two mounting lugs 3, move the two mounting lugs 3 towards the two ends of the connecting shaft 4 and separate them, and then remove the insulator string.

The connecting shaft 4 is also provided with a U-shaped lug 6; one end of the U-shaped lug 6 is passed through the connecting shaft 4 between the nut 5 and the mounting ear 3 closest to the nut 5, and the other end is fixed on the connecting shaft. 4 on the end that is not connected with the nut 5. The first ends of the above-mentioned two second connecting ropes 19 are respectively connected with a U-shaped lifting lug 6. After the insulator string is fixed, the insulator string clamp 16 and the insulator string on it can be lifted up by operating the second take-up and release device 15. high altitude.

The upper end surfaces of the first fixture 1 and the second fixture 2 are respectively provided with a shroud 7, and each of the outer peripheral surfaces is provided with a fixing ring 8. The shape of the fixing ring 8 is not limited, and it can be a semicircle Or elliptical or square, its two ends are fixed on the outer circumference of the first fixture 1 or the second fixture 2; the surrounding plate 7 is an arc-shaped plate, and its radius gradually increases from bottom to top, The arc length of its cross-section also gradually increases from bottom to top; two fixing rings 8 are respectively installed at the highest point of the arc of the first fixture 1 and the second fixture 2, that is, installed in the center of the arc, and the two fixing rings 8 each link to each other with a first connecting rope 18. In this embodiment, the coaming plate 7 can prevent the insulator string from being tilted or tilted on the insulator string fixture 16, and the two fixing rings 8 are respectively arranged on both sides of the insulator string fixture 16, and each of the two fixing rings 8 is connected to a When lifting the insulator string, the first take-up and release device 14 tightens the first connection rope 18 and cooperates with the lifting device to slowly release the wire, so as to prevent the entire insulator string fixture 16 and its The insulator strings shake in the air, so that the insulator strings can be sent to high altitude stably and quickly.

Example 3:

On the basis of Embodiment 2, in the hanging glass insulator string fixture in this embodiment, the two mounting ears 3 of the first fixture 1 are also provided with a limit rod 9 on the side facing the second fixture 2, so The two mounting ears 3 of the second fixture 2 are provided with a through hole 10 corresponding to the size and position of the limit rod 9, the limit rod 9 is passed through the through hole 10, and the end of the limit rod 9 is threaded. Connect with stop nut 11. In this embodiment, setting the limit rod 9 is mainly to keep the first clamp 1 and the second clamp 2 on the same horizontal plane, and further strengthen the stability of the first clamp 1 and the second clamp 2 on the horizontal plane.

The above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims (4)

1. pendency glass insulator strings promotes system, it is characterised in that include fixing bar (12), the first take-up and pay-off device (14), Second take-up and pay-off device (15), insulator chain fixture (16) and 2 fixed pulleys (17), described fixing bar (12) is fixed on cross-arm (20) one end, described 2 fixed pulleys (17) are fixed on fixing bar (12), described first take-up and pay-off device (14) and the second folding and unfolding Line apparatus (15) is respectively provided with on the ground, described first take-up and pay-off device (14) is wound with two first and connects rope (18), and it leads to Cross these two first connections rope (18) to be connected with insulator chain fixture (16)；It is also associated with two on described insulator chain fixture (16) Root second connects rope (19), and two second connection rope (19) other ends are wound on the second retractable cable after respectively walking around 1 fixed pulley (17) On device (15)；

Described first take-up and pay-off device (14) and the second take-up and pay-off device (15) all include support and the folding and unfolding being fixed on support Line is taken turns；

Described insulator chain fixture (16) includes the first fixture (1) and the second fixture (2),

Described first fixture (1) and the second fixture (2) all in semi-annular shape, semi-annular shape the first fixture (1) and semi-annular shape Two fixtures (2) two ends the most outwards bend, and form a mounting ear (3), and described first fixture (1) and the second fixture (2) are corresponding Mounting ear (3) by connecting shaft (4) be flexibly connected, threaded on described connecting shaft (4) one end have nut (5)；Described company Being additionally provided with U-shaped hanger (6) in spindle (4), U-shaped hanger (6) one end is located in and is positioned at nut (5) and distance nut (5) is nearest Mounting ear (3) between connecting shaft (4) on, the other end is fixed on one end that connecting shaft (4) is not connected with nut (5), institute State two second and connect rope (19) respectively one U-shaped hanger (6) of connection；

It is each provided with a coaming plate (7) on the upper surface of described first fixture (1) and the second fixture (2), outer circumference surface respectively sets Being equipped with a retainer ring (8), described coaming plate (7) is arc, and its radius is gradually increased from bottom to top, 2 retainer ring (8) each with One first connects rope (18) and is connected；Described retainer ring (8) is semicircle oval or square.

Pendency glass insulator strings the most according to claim 1 promotes system, it is characterised in that described first fixture (1) Two mounting ears (3) on be additionally provided with gag lever post (9), two mounting ears (3) of described second fixture (2) are provided with and limit The through hole (10) that position bar (9) is corresponding, described gag lever post (9) is located in this through hole (10).

Pendency glass insulator strings the most according to claim 2 promotes system, it is characterised in that described gag lever post (9) end Hold threaded limited location nut (11).

Pendency glass insulator strings the most according to claim 3 promotes system, it is characterised in that two retainer ring (8) point It is not arranged on the first fixture (1) and the circular arc highest point of the second fixture (2).