Tool for 252kV transition bus special-shaped conductor

Abstract

The utility model relates to the field of tools, in particular to a tool for a 252kV transition bus special-shaped conductor, which comprises a tool cylinder. The three-phase basin-type insulator is arranged on the tool cylinder, and a first special-shaped conductor, a second special-shaped conductor and a third special-shaped conductor are arranged on the three-phase basin-type insulator; the transition bus shell is arranged on the three-phase basin-type insulator; the tool cover plate is arranged at the top of the transition bus shell, circular holes a, circular holes b, an opening a and an opening b are formed in the tool cover plate, and the number of the circular holes a is two; the centering fixing cylinder is arranged on the tool cover plate and is opposite to the circular hole b; the number of the centering positioning rods is three, the three centering positioning rods penetrate through the centering fixing cylinder and the two round holes a correspondingly, and limiting bosses are arranged on the centering positioning rods. According to the utility model, the insertion amount of the centering positioning rod is limited through the boss structure of the centering positioning rod, so that the centering requirement of the special-shaped conductor is finally realized, and the product quality is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooling field especially relates to a 252kV transition busbar special-shaped conductor tooling. BACKGROUND

[0002] With the rapid development of economy, the structure of power grid is increasingly complex, and the capacity of power grid is continuously increasing. Short-circuit current exceeding standard and large-area power failure seriously threaten the safe operation of power grid system. In order to meet the safe and reliable operation of power grid, the breaking capacity of high-voltage switchgear is also gradually increased. The breaking short-circuit current of high-voltage switchgear is gradually increased from 40kA, 50kA to 63kA, 80kA. Therefore, more stringent requirements are put forward for the design of products, the processing of parts, the assembly and debugging of the factory, etc. According to the statistics of abnormal conditions of equipment operation, most of them are caused by process problems. Therefore, improving the assembly quality is the key factor for the reliable operation of high-voltage switch.

[0003] Based on the above reasons, the assembly quality of the 252kV GIS interval transition busbar special-shaped conductor directly determines the reliability and safety of product operation. Therefore, it is very important to design the tooling for the transition busbar special-shaped conductor.

[0004] At present, during assembly, the three-phase plug-in conductor in the transition busbar is often used for centering. The limiting of conductor insertion amount cannot be reflected. Only the insertion positioning can be performed by relying on human feeling. Due to the complex assembly of the substation and large assembly amount, the assembly quality and assembly efficiency of the product are more likely to be affected by experience. INVENTION CONTENTS

[0005] The utility model aims at the problem that the three-phase plug-in conductor in the transition busbar is centered, the limiting of conductor insertion amount cannot be reflected, and only the insertion positioning can be performed by relying on human feeling in the background art. A 252kV transition busbar special-shaped conductor tooling is provided.

[0006] The technical scheme of the utility model: a 252kV transition busbar special-shaped conductor tooling, comprising:

[0007] A tooling barrel;

[0008] A three-phase basin-type insulator is arranged on the tooling barrel. The three-phase basin-type insulator is provided with a special-shaped conductor one, a special-shaped conductor two and a special-shaped conductor three;

[0009] A transition busbar shell is arranged on the three-phase basin-type insulator;

[0010] A tooling cover plate is arranged on the top of the transition busbar shell. The tooling cover plate is provided with a circular hole a, a circular hole b, an opening a and an opening b. The number of the circular hole a is two.

[0011] The centering fixing cylinder is arranged on the tool cover plate and opposite to the circular hole b;

[0012] The centering positioning rod is arranged with three, and the three centering positioning rods are respectively inserted into the contact seat of the special-shaped conductor one, the special-shaped conductor two and the special-shaped conductor three.

[0013] Preferably, the flange surface of the tool cylinder faces upward, and the transition bus shell, the tool cylinder and the three-phase basin type insulator are connected through a plurality of screws and nuts.

[0014] Preferably, the bottom of the special-shaped conductor one, the special-shaped conductor two and the special-shaped conductor three is provided with a screw a, the screw a is rotatably inserted into the concave surface of the three-phase basin type insulator, and the convex surface of the three-phase basin type insulator faces downward and is inserted into the tool cylinder.

[0015] Preferably, the tool cover plate and the transition bus shell are positioned and connected through a plurality of positioning pins.

[0016] Preferably, the centering fixing cylinder is connected with the tool cover plate through a plurality of screws b.

[0017] Preferably, the limiting boss on the centering positioning rod is a circular ring, and the circular ring abuts against the upper surface of the tool cover plate and the upper surface of the centering fixing cylinder.

[0018] Compared with the prior art, the transition bus special-shaped conductor uses the tool to replace the simple three-phase plug-in conductor positioning method, the limiting boss structure of the centering positioning rod limits the insertion amount of the centering positioning rod, finally realizes the requirement of the special-shaped conductor centering, significantly improves the product assembly efficiency and the safe and reliable operation of the product, and ensures the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is a structure schematic view of an embodiment of the utility model;

[0020] Fig. 2 It is a structure schematic view of a tool cover plate.

[0021] The figure sign: 1, tool cover plate; 2, centering fixing cylinder; 3, centering positioning rod; 4, positioning pin; 5, special-shaped conductor one; 6, special-shaped conductor two; 7, special-shaped conductor three; 8, screw a; 9, transition bus shell; 10, three-phase basin type insulator; 11, screw b; 12, tool cylinder; 13, screw; 14, circular hole a; 15, opening a; 16, opening b; 17, circular hole b. DETAILED DESCRIPTION

[0022] Embodiment one

[0023] As Figs. 1-2As shown, the utility model provides a kind of 252kV transition bus special-shaped conductor tool, including

[0024] Tool barrel 12;

[0025] Three-phase basin insulator 10 is arranged on tool barrel 12, and three-phase basin insulator 10 is equipped with special-shaped conductor one 5, special-shaped conductor two 6 and special-shaped conductor three 7;

[0026] Transition bus shell 9 is arranged on three-phase basin insulator 10;

[0027] Tool cover plate 1 is arranged on the top of transition bus shell 9, and round hole a14, round hole b17, opening a15 and opening b16 are formed in tool cover plate 1, and the number of round hole a14 is two;

[0028] Centering fixing cylinder 2 is arranged on tool cover plate 1 and opposite to round hole b17;

[0029] And three centering positioning rods 3 are arranged, three centering positioning rods 3 respectively pass through centering fixing cylinder 2 and two round holes a14, limiting boss is arranged on centering positioning rod 3 to limit its insertion depth, and the bottom of three centering positioning rods 3 is respectively inserted into the contact seat of special-shaped conductor one 5, special-shaped conductor two 6 and special-shaped conductor three 7, specifically, the limiting boss on centering positioning rod 3 is a circular ring, and the circular ring is abutted on the upper surface of tool cover plate 1 and the upper surface of centering fixing cylinder 2.

[0030] Example two

[0031] As Figs. 1-2 shown, the utility model provides a kind of 252kV transition bus special-shaped conductor tool, compared with example one, the connecting mode between components is introduced in detail in the embodiment.

[0032] Tool barrel 12 flange face is upward, and transition bus shell 9, tool barrel 12 and three-phase basin insulator 10 are connected by multiple screw rods 13 and nuts, and the model of screw rod 13 is M16×200.Screw a8 is arranged at the bottom of special-shaped conductor one 5, special-shaped conductor two 6 and special-shaped conductor three 7, and the model of screw a8 is M12×40, screw a8 is rotated and inserted into the concave surface of three-phase basin insulator 10, and the convex surface of three-phase basin insulator 10 is downward inserted into tool barrel 12.Positioning pin 4 is arranged between tool cover plate 1 and transition bus shell 9 for positioning connection.Centering fixing cylinder 2 is connected with tool cover plate 1 by multiple screw b11, and the model of screw b11 is M12×60.

[0033] The installation process of the utility model is as follows:

[0034] After the tooling cylinder 12 is cleaned, it is placed horizontally on the ground with the flange face upward, then the three-phase pot-type insulator 10 is cleaned, the convex surface is downward, the three-phase pot-type insulator 10 is fixed on the tooling cylinder 12 by using the screw rod 13, the lower nut and the elastic washer, then the special-shaped conductor one 5, the special-shaped conductor two 6 and the special-shaped conductor three 7 are screwed into the corresponding threaded holes of the three-phase pot-type insulator 10 by using the screw a8, the screw a8 is screwed in under the condition that the screw a8 is not too tight and the special-shaped conductor can be loose, the transition bus shell 9 is installed on the three-phase pot-type insulator 10 by using the screw rod 13, the upper nut and the elastic washer, because the transition bus middle-phase conductor is longer than the other two-phase conductors, a centering fixing cylinder 2 can be added and fixed in the middle-phase position of the tooling cover plate 1 by using the screw b11, the tooling cover plate 1 and the centering fixing cylinder 2 are installed as a whole, the tooling cover plate 1 is installed on the transition bus shell 9 and fixed and positioned by using the positioning pin 4, the three centering positioning rods 3 are inserted into the contact seat of the three-phase special-shaped conductors respectively, because the centering positioning rod 3 has the boss structure design for limiting the insertion amount of the centering positioning rod 3, the centering positioning rod 3 can be directly inserted to the bottom during assembly, after the above steps are completed, the screw a8 is fastened and torqued, and finally the requirement of the special-shaped conductor centering is realized.

[0035] In summary, the tooling of the transition bus special-shaped conductor replaces the simple three-phase plug-in conductor positioning method, the boss structure of the centering positioning rod 3 limits the insertion amount of the centering positioning rod 3, and finally the requirement of the special-shaped conductor centering is realized, the efficiency of product assembly and the safe and reliable operation of the product are significantly improved, and the product quality is ensured.

[0036] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, various changes can be made within the knowledge range of the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A tool for 252 kV transition bus profile conductor, characterized in that, The utility model relates to a kind of three-phase bushing, including: Tooling barrel (12); Three-phase bushing (10) is arranged on tooling barrel (12), and three-phase bushing (10) is equipped with special-shaped conductor one (5), special-shaped conductor two (6) and special-shaped conductor three (7); Transition bus shell (9) is arranged on three-phase bushing (10); Tooling cover plate (1) is arranged on the top of transition bus shell (9), and tooling cover plate (1) is equipped with round hole a (14), round hole b (17), opening a (15) and opening b (16), and the number of round hole a (14) is two; Centering fixing cylinder (2) is arranged on tooling cover plate (1) and opposite to round hole b (17); And centering positioning rod (3) is arranged three, and three centering positioning rods (3) respectively pass through centering fixing cylinder (2) and two round holes a (14), and limiting boss is arranged on centering positioning rod (3) to limit its insertion depth, and the bottom of three centering positioning rods (3) is inserted into the contact seat of special-shaped conductor one (5), special-shaped conductor two (6) and special-shaped conductor three (7) respectively.

2. The tooling for 252 kV transition bus profile conductor as claimed in claim 1, wherein, Tooling barrel (12) flange surface is upward, and transition bus shell (9), tooling barrel (12) and three-phase bushing (10) are connected by multiple screw rods (13) and nuts.

3. The tooling for 252 kV transition bus profile conductor as claimed in claim 1, wherein, The bottom of special-shaped conductor one (5), special-shaped conductor two (6) and special-shaped conductor three (7) is equipped with screw a (8), and screw a (8) is inserted into the concave surface of three-phase bushing (10) by rotating, and the convex surface of three-phase bushing (10) is downward inserted into tooling barrel (12).

4. The tooling for 252 kV transition bus profile conductor as claimed in claim 1, wherein, Tooling cover plate (1) and transition bus shell (9) are positioned and connected by multiple positioning pins (4).

5. The tooling for 252 kV transition bus profile conductor as claimed in claim 1, wherein, Centering fixing cylinder (2) is connected with tooling cover plate (1) by multiple screw b (11).

6. The tooling for 252 kV transition bus profile conductor as claimed in claim 1, wherein, The limiting boss on centering positioning rod (3) is circular ring, and circular ring is abutted on the upper surface of tooling cover plate (1) and the upper surface of centering fixing cylinder (2).

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