CN103715633A - Clamping device and method for replacing single-hole connecting plate strain insulator string - Google Patents

Abstract

The present invention relates to a fixture for replacing a stretch-resistant single-hole connecting plate insulator string and a replacement method thereof. The fixture includes a front bent plate clamp, a rear bent plate clamp, two adjustable aluminum alloy hanging rings and an aluminum alloy bottle holder. The upper part of the front curved board is used to connect the wire side connecting plate, the middle part is fixed with a steering block, and the lower part is connected with an adjustable aluminum alloy hanging ring, and the steering block is provided with a rope connecting the front end of the aluminum alloy bottle holder; The upper part of the back-bent board is used to connect the cross-arm side connecting plate, the middle part is flexibly connected with the rear end of the aluminum alloy bottle holder, and the lower part is connected with another adjustable aluminum alloy hanging ring; the adjustable aluminum alloy hanging ring is There are a plurality of holes for adjusting the connection position of the corresponding bent plate card, and the two adjustable aluminum alloy hanging rings are connected by double hooks. The invention has the advantages of convenient assembly and disassembly, strong operability, reduced labor intensity, meeting the safety requirements of on-site high-altitude work, and improving operating efficiency.

Description

Fixture and method for replacing tension-resistant single-hole insulator strings

technical field

The invention relates to a jig for replacing insulator strings, in particular to a jig for replacing insulator strings with a tension-resistant single-hole joint plate and a replacement method thereof.

Background technique

In recent years, due to the accelerated pace of power grid construction and the improvement of the operation and maintenance level of overhead lines, the types of boards running on overhead lines are different. However, the measures taken to replace the tension insulators of various types of connecting plates are also quite different. At present, the main method of replacing tension double-string insulators on overhead lines is to use wire clamps and chain hoists. This method is relatively expensive in terms of time, technology, and safety for replacing L-3050G* type tension single-hole insulator strings. There are many shortcomings.

Contents of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a tension-resistant single-hole connected plate insulator string replacement jig and its replacement method that is convenient to assemble and disassemble, has strong operability, reduces labor intensity, and meets the safety requirements of on-site high-altitude work . the

In order to achieve the above purpose, the first technical solution of the present invention is a tension-resistant single-hole connecting plate insulator string replacement jig, including a front bending plate clamp, a rear bending plate clamp, two adjustable aluminum alloy hanging rings and an aluminum alloy bottle support The upper part of the front curved board is used to connect the wire side connecting plate, the middle part is fixed with a steering block, and the lower part is connected with an adjustable aluminum alloy hanging ring. Rope; the upper part of the back-bent plate is used to connect the cross-arm side connecting plate, the middle part is flexibly connected with the rear end of the aluminum alloy bottle rack, and the lower part is connected with another adjustable aluminum alloy hanging ring; the adjustable aluminum alloy hanging ring The ring is provided with a plurality of holes for adjusting the connection position of the corresponding bent plate card, and the two adjustable aluminum alloy hanging rings are connected by double hooks.

Further, the upper part of the front bending board is provided with an upper opening slot for snapping into the wire side connecting plate and a bolt hole for passing through bolts to be fixed on the wire side connecting plate, and the lower part is provided with an adjustable aluminum alloy The lower opening groove of the hanging ring and the through hole through which the fastener is passed to be fixed on an adjustable aluminum alloy hanging ring.

Further, the upper part of the rear bent board is provided with an upper opening slot for snapping into the cross-arm side connecting plate and a bolt hole for passing through bolts to be fixed to the cross-arm side connecting plate, and the middle part is provided with an aluminum alloy bracket. In the through hole at the rear end of the bottle rack, the lower part is provided with a lower opening groove for installing another adjustable aluminum alloy hanging ring and a through hole for fixing fasteners on another adjustable aluminum alloy hanging ring.

Further, the front end of the aluminum alloy bottle holder is hinged with a T-shaped hanging ring connected to the rope, and the rear end is hinged with a triangle connecting frame fixedly connected with the middle of the back-bent board.

Further, the opening section width of the upper opening groove is 24 mm, and the wall thickness of both sides is 15 mm.

Further, the front curved board and the rear curved board are both made of aluminum alloy.

Further, a row of 13 holes is provided on the adjustable aluminum alloy hanging ring.

Further, the length×width×height of the adjustable aluminum alloy hanging ring is 970mm×55mm×15mm, the hole spacing is 50mm, and the hole diameter is 23mm.

In order to achieve the above-mentioned purpose, the second technical solution of the present invention is a method for replacing a tension-resistant single-hole connected plate insulator string. The two ends of the double hooks are respectively hung on two adjustable aluminum alloy hanging rings. By tightening the double hooks, the insulator strings to be replaced are in a loose state, and the insulators, hardware nuts, bolts and pins are removed; when installing the insulator strings, first put the aluminum The alloy bottle holder is placed on the vertical plane, and the ground staff will lift the new insulator to the same vertical plane as the aluminum alloy bottle holder, and use the steering pulley on the front curved card together with the front end of the aluminum alloy bottle holder to string the new insulators together. Hoist to the horizontal position of the original insulator string for assembly work.

Compared with the prior art, the present invention has the following beneficial effects: (1) The material is made of aluminum alloy, which has the characteristics of high strength and lightness, reduces the labor intensity of operators on the tower, and improves work efficiency. (2) It saves human resources, shortens the operation time, and saves 30 minutes compared with the original method. The number of operators on the tower is reduced by 2. The operators obviously feel that the replacement method saves time and effort. (3) When dismantling and replacing the insulator string, the insulator string and the connected hardware are easy to assemble and disassemble, and the operability is strong, which effectively solves the difficulty or inability to replace the L-3050G* type tension single-hole plate insulator string on the job site problems and improve work efficiency.

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a back-bent card.

FIG. 3 is a schematic structural diagram of a front-bent card.

Fig. 4 is a schematic structural diagram of an adjustable aluminum alloy hanging ring.

Fig. 5 is a structural schematic diagram of an aluminum alloy bottle holder.

In the figure: 1-back curved board, 11-through hole, 12-upper opening slot, 13-lower opening slot, 2-front bending board, 21-upper opening slot, 22-lower opening slot, 23-steering block , 3-adjustable aluminum alloy hanging ring, 31-hole, 4-aluminum alloy bottle holder, 41-triangular connecting frame, 42-T-shaped hanging ring, 5-double hook, 6-wire side connecting plate, 7-cross arm Side connection plate, 8-insulator string.

Detailed ways

As shown in Figures 1 to 5, a fixture for replacing tension-resistant single-hole insulator strings includes a front-bent plate clamp, a rear-bent plate clamp, two adjustable aluminum alloy hanging rings, and an aluminum alloy bottle holder. The upper part of the front curved board is used to connect the wire side connecting plate, the middle part is fixed with a steering block, and the lower part is connected with an adjustable aluminum alloy hanging ring. The steering block is threaded with a rope connected to the front end of the aluminum alloy bottle holder; The upper part of the back-bent board is used to connect the cross-arm side connecting plate, the middle part is movably connected with the rear end of the aluminum alloy bottle holder, and the lower part is connected with another adjustable aluminum alloy hanging ring; the adjustable aluminum alloy hanging ring is equipped with A plurality of holes are used to adjust the connection position of the corresponding bent plate card, and the two adjustable aluminum alloy hanging rings are connected by double hooks.

In this embodiment, the upper part of the front curved board is provided with an upper opening slot for snapping into the side connecting plate of the wire and a bolt hole for passing a bolt to be fixed on the side connecting plate of the wire, and the lower part is provided with a mounting bracket. The lower opening groove of the adjustable aluminum alloy hanging ring and the through hole through which the fastener is passed to be fixed on an adjustable aluminum alloy hanging ring. The upper part of the back bending plate is provided with an upper opening slot for snapping into the cross-arm side connecting plate and a bolt hole for passing bolts to be fixed to the cross-arm side connecting plate, and the middle part is opened for connecting the rear of the aluminum alloy bottle holder. There is a through hole at the end, and the lower part is provided with a lower opening groove for installing another adjustable aluminum alloy hanging ring and a through hole for passing fasteners to be fixed on another adjustable aluminum alloy hanging ring.

In this embodiment, the front curved board and the rear curved board are both made of aluminum alloy material, the opening section width of the upper opening groove is 24 mm, and the wall thickness of both sides is 15 mm. When in use, install the upper opening slots of the front and rear bending boards on the front and rear L-3050G* type tension-resistant single-hole connecting plate slopes of the insulator string fittings respectively, so that they are closely connected, and use bolts to connect the front and rear bending boards. The board is fixed on the L-3050G* type tensile single-hole connecting plate, and the whole tool can maintain good horizontal stability.

In this embodiment, the aluminum alloy bottle holder is in the shape of a climbing ladder, and the front end of the aluminum alloy bottle holder is hinged with a T-shaped hanging ring capable of rotating 360 degrees around the hinge axis, and the rope passes through the front curved plate and is attached to the The steering pulley is connected with the T-shaped hanging ring; the rear end of the aluminum alloy bottle holder is hinged with a triangle connecting frame that can rotate 360 degrees around the hinge axis, and the other end of the triangle connecting frame passes through the middle of the back bending plate card. After the hole, the 110mm long bolt is fixedly connected with the rear bent plate, so that the front end of the aluminum alloy bottle holder becomes a free-rotating structure in the vertical plane. During operation, the height of the T-shaped hanging ring is kept consistent with that of the triangle connecting frame, and the lifting height of the aluminum alloy bottle holder is adjusted through the control of the rope by the ground personnel, so as to improve the working efficiency of the operators on the tower to quickly disassemble and replace the insulator string.

In this embodiment, the length × width × height of the adjustable aluminum alloy hanging ring is 970 mm × 55 mm × 15 mm, and a row of 13 holes is provided on the adjustable aluminum alloy hanging ring, and the distance between the holes is 50 mm. The hole diameter is 23mm. When in use, adjust the working part of the adjustable aluminum alloy hanging ring according to the length of the insulator string to be replaced, and after selecting a suitable hole, connect the two adjustable aluminum alloy hanging rings with the lower opening slots of the front and rear bent boards respectively, and place the The two ends of the double hooks are respectively hung in the adjustable aluminum alloy hanging rings on both sides, which reduces the workload of the operators on the tower to use the double hooks at high altitude.

The working principle of the present invention is as follows: if the insulator string needs to be removed, hang the two ends of the double hooks on the adjustable aluminum alloy hanging rings on both sides, and tighten the double hooks so that the insulator string to be replaced is in a loose state, so that the insulator and fittings can be easily disassembled Nuts, bolts, pins, etc. If you want to install the insulator string, first place the aluminum alloy bottle holder on the vertical plane, wait for the ground personnel to lift the new insulator string to the same vertical plane as the aluminum alloy bottle holder, use the steering pulley on the front curved card and the aluminum alloy holder The T-shaped hanging ring on the bottle rack is used to lift the new insulator string to the horizontal position of the original insulator string for assembly work.

During specific use, the electrician on the crossarm side takes the steering block and the rope to climb the tower to the working position, installs the steering block and the lifting rope, the electrician on the wire side enters the wire side along the insulator string, and the electrician on the ground successively installs the front bending board and the rear bending board. , Adjustable aluminum alloy hanging ring, aluminum alloy bottle holder hoisted to the working position, after the ground electrician loosened the double hooks to an appropriate length, hoisted to the working position on the tower. The electrician on the cross-arm side fixes the rear bending plate on the L-3050G* type tension-resistant single-hole connecting plate on the cross-arm side, and the electrician on the conductor side fixes the front bending plate on the L-3050G* type tension-resistant single-hole connecting plate on the conductor side According to the length of the insulator string to be replaced, the electrician on the cross-arm side and the conductor side select the appropriate hole positions on the two adjustable aluminum alloy hanging rings, which are respectively connected to the lower opening slot of the front bending board and the lower opening of the rear bending board. Groove connection, the triangular connection frame of the aluminum alloy bottle holder and the through hole in the middle of the rear curved board are fixed by 110mm long bolts, and the rope passes through the steering pulley on the front curved board and is connected to the T-shaped hanger on the aluminum alloy bottle holder. Ring connection, by tightening the double hooks, the insulator string is in a loose state, and the electrician on the crossarm side and the wire side can easily dismantle the insulator string and place it on the aluminum alloy bottle holder to achieve the purpose of disassembly. During the installation of insulator strings, the aluminum alloy bottle holder is relaxed to the vertical plane, and when the ground electrician lifts the new insulator string to the same vertical plane as the aluminum alloy bottle holder, use the steering pulley on the front bent board and the aluminum alloy holder The T-shaped hanging ring on the bottle rack is used to lift the new insulator string to the horizontal position of the original insulator string for assembly work.

The parts not described in this embodiment are the same as the prior art, and the above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (9)

1. a strain insulator single hole yoke plate replacing insulator string jig, it is characterized in that: comprise antecurvature board, palintrope board, two adjustable aluminum alloy links and aluminium alloy bottle-holding rack, described antecurvature board top is used for connecting side of wire was yoke plate, middle part is fixed with corner block, bottom is connected with an adjustable aluminum alloy link, and described corner block is equipped with the rope of connecting aluminum alloy bottle-holding rack front end; Described palintrope board top is used for connecting cross-arm side yoke plate, and middle part is flexibly connected with aluminium alloy bottle-holding rack rear end, and bottom is connected with another adjustable aluminum alloy link; On described adjustable aluminum alloy link, offer a plurality ofly for regulating the hole of corresponding bent plate card link position, between two adjustable aluminum alloy links, by double hook, couple together.

2. strain insulator single hole yoke plate replacing insulator string jig according to claim 1, it is characterized in that: described antecurvature board top offers for snapping in the upper shed groove of side of wire was yoke plate and for wearing bolt to be fixed on the bolt hole on side of wire was yoke plate, bottom offers installs the under shed groove of an adjustable aluminum alloy link and wears securing member to be fixed on the through hole on an adjustable aluminum alloy link.

3. strain insulator single hole yoke plate replacing insulator string jig according to claim 1, it is characterized in that: described palintrope board top offers for snapping in the upper shed groove of cross-arm side yoke plate and for wearing bolt to be fixed on the bolt hole of cross-arm side yoke plate, middle part offers the through hole for connecting aluminum alloy bottle-holding rack rear end, and bottom offers installs the under shed groove of another adjustable aluminum alloy link and wears securing member to be fixed on the through hole on another adjustable aluminum alloy link.

4. strain insulator single hole yoke plate replacing insulator string jig according to claim 1, is characterized in that: described aluminium alloy bottle-holding rack front end is hinged with the T shape link being connected with rope, and rear end is hinged with the triangle joint frame being fixedly connected with palintrope board middle part.

5. according to the strain insulator single hole yoke plate replacing insulator string jig described in claim 2 or 3, it is characterized in that: the opening section width 24mm of described upper shed groove, both sides wall thickness is 15mm.

6. strain insulator single hole yoke plate replacing insulator string jig according to claim 1, is characterized in that: described antecurvature board and palintrope board all adopt aluminum alloy materials to be made.

7. according to the strain insulator single hole yoke plate replacing insulator string jig described in claim 1,2,3 or 4, it is characterized in that: on described adjustable aluminum alloy link, offer 13 holes of a row.

8. strain insulator single hole yoke plate replacing insulator string jig according to claim 7, is characterized in that: the length of described adjustable aluminum alloy link * wide * height is 970mm * 55mm * 15mm, and described hole spacing is 50mm, and hole diameter is 23mm.

9. a strain insulator single hole yoke plate replacing insulator string method, it is characterized in that: the method adopts the strain insulator single hole yoke plate replacing insulator string jig as described in any one in claim 1 to 8, while removing insulator string, double hook two ends are placed in respectively to two adjustable aluminum alloy links, by tightening up double hook, make to need the insulator string of changing in relaxed state, dismounting insulator, gold utensil nut, bolt and latch; During installing insulating substring, first aluminium alloy bottle-holding rack is placed in to vertical plane, treat that ground staff plays new insulator string to winch to and the same vertical plane of aluminium alloy bottle-holding rack, by the corner block on antecurvature board and aluminium alloy bottle-holding rack front end, be used in conjunction with new insulator string is risen and winches to former insulator string horizontal position, carry out assembling operation.

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