High-precision device applied to centering connection of GIS (Gas Insulated Switchgear) bus

Abstract

The utility model relates to the field of installation and correction of high-voltage electrical equipment, in particular to a high-precision device applied to centering connection of a GIS (Gas Insulated Switchgear) bus, which comprises a bus and a bus cylinder flange, a circular hole is formed in the center of the positioning plate, and the circular hole is coaxial with the bus cylinder flange; the clamping mechanism is used for mounting the positioning plate on the bus cylinder flange; the guide sleeve penetrates through the round hole in the positioning plate and is connected with the positioning plate; the positioning pipe penetrates through the guide sleeve in a matched mode, a bus connecting circular plate is arranged at the end, away from the positioning plate, of the positioning pipe, the bus connecting circular plate and the positioning pipe are coaxial, and the bus is coaxially connected with the bus connecting circular plate. The device is low in cost and convenient to install; the problem of low bus centering connection precision is solved, and the working stability and safety of equipment are greatly improved; and the centering working time in the assembling process is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage electrical equipment installation and calibration, and in particular to a high-precision device for GIS busbar centering connection. Background Technology

[0002] The rapid growth of total installed power capacity and the increasing transmission capacity of ultra-high voltage lines have placed higher demands on the stability and technological upgrading of the power system. The use of ultra-high voltage transmission lines can effectively improve the efficiency and economy of long-distance, large-capacity power transmission and accelerate the iterative upgrading of my country's power grid technology. As a crucial component of the power system, the 550kV enclosed switchgear plays a key role in the stability of the entire ultra-high voltage power supply system. The busbar is a vital component of the 550kV enclosed switchgear. Generally, the busbar is placed in the center of the busbar conduit to ensure optimal operating conditions. The busbar conduit effectively protects the busbar and provides a favorable operating environment.

[0003] Currently, the alignment accuracy of busbars in most 550kV combined electrical equipment manufactured by various companies is relatively low, requiring multiple calibrations to meet the accuracy requirements. This assembly process is inefficient, time-consuming, and demands high installation skills from workers. When the alignment during assembly fails to meet the accuracy requirements, the power transmission stability of the busbar will be severely affected, damaging not only the equipment but also potentially compromising the safety of the entire power supply system. Utility Model Content

[0004] The purpose of this invention is to address the problem in the prior art that high-precision busbar alignment cannot be achieved efficiently and quickly, and to propose a high-precision device for GIS busbar alignment.

[0005] The technical solution of this utility model is as follows: a high-precision device for GIS busbar alignment connection, comprising a busbar and a busbar flange; further comprising:

[0006] The positioning plate has a circular hole at its center, which is coaxial with the busbar flange.

[0007] The clamping mechanism installs the positioning plate onto the busbar flange;

[0008] The guide sleeve passes through the round hole on the positioning plate and connects to the positioning plate;

[0009] And a positioning tube, which passes through the guide sleeve. A busbar connecting round plate is set at the end of the positioning tube away from the positioning plate. The busbar connecting round plate and the positioning tube are coaxial, and the busbar is coaxially connected with the busbar connecting round plate.

[0010] Preferably, a handle is provided at the end of the positioning tube, and the handle is connected to the positioning tube by a handle connecting bolt.

[0011] Preferably, the positioning plate is provided with four threaded holes, and the guide sleeve is connected to the positioning plate by four guide sleeve connecting bolts.

[0012] Preferably, annular grooves are provided on the inner walls of both ends of the guide sleeve, and guide rings are provided in the annular grooves.

[0013] Preferably, it also includes a locating pin and a chamfered locating pin. Both ends of the locating plate are provided with locating holes and locating threaded holes. The locating pin and the chamfered locating pin pass through the two locating holes and the hole on the busbar flange, respectively.

[0014] Preferably, two sets of clamping mechanisms are provided, with the two sets of clamping mechanisms located at both ends of the positioning plate.

[0015] Preferably, the clamping mechanism includes a clamping pin, a nut threaded onto the clamping pin, and a wedge block that contacts the end face of the busbar flange facing away from the positioning plate. The clamping pin has a slot, the wedge block passes through the slot, the clamping pin is threaded onto the positioning plate, and the nut and wedge block press the positioning plate onto the busbar flange.

[0016] Preferably, the clamping pin and the wedge are connected by a nylon rope.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects: the device has a lower cost and is easier to install; it solves the problem of low busbar alignment accuracy, greatly improving the stability and safety of the equipment; and it saves alignment time during assembly, thus improving work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Side view;

[0020] Figure 3 This is a structural schematic diagram of the positioning plate;

[0021] Figure 4 This is a schematic diagram of the clamping pin and wedge.

[0022] Reference numerals: 1. Positioning plate; 2. Handle; 3. Guide sleeve connecting bolt; 4. Handle connecting bolt; 51. Guide sleeve; 52. Guide ring; 61. Positioning tube; 62. Busbar connecting round plate; 7. Round plate connecting bolt; 8. Busbar; 91. Clamping pin; 92. Nut; 93. Wedge; 94. Nylon rope; 95. Slot; 10. Busbar cylinder flange; 11. Positioning pin; 12. Beveled positioning pin. Detailed Implementation

[0023] Example 1

[0024] like Figures 1-3 As shown, this utility model proposes a high-precision device for GIS busbar alignment connection, including a busbar 8 and a busbar flange 10; it also includes:

[0025] Positioning plate 1, with a circular hole at its center, the circular hole being coaxial with busbar flange 10;

[0026] The clamping mechanism installs the positioning plate 1 onto the busbar flange 10;

[0027] Guide sleeve 51 passes through the round hole on positioning plate 1 and is connected to positioning plate 1;

[0028] The positioning tube 61 passes through the guide sleeve 51. A busbar connecting circular plate 62 is provided at the end of the positioning tube 61 away from the positioning plate 1. The busbar connecting circular plate 62 and the positioning tube 61 are coaxial. The busbar 8 is coaxially connected to the busbar connecting circular plate 62 by multiple circular plate connecting bolts 7. The positioning plate 1 has high processing requirements. The coaxiality between the center circular hole of the positioning plate 1 and the busbar cylinder flange 10 is controlled within 0.1mm. In an optional embodiment, two threaded holes are provided on the busbar connecting circular plate 62, which are evenly distributed around the positioning tube 61. The circular plate connecting bolts 7 cooperate with the threaded holes on the busbar connecting circular plate 62 to fix the busbar 8 on the busbar connecting circular plate 62.

[0029] Example 2

[0030] like Figures 1-3 As shown, this utility model proposes a high-precision device for centering connection of GIS busbars. Compared with Embodiment 1, this embodiment introduces the detailed structure.

[0031] A handle 2 is provided at the end of the positioning tube 61. The handle 2 is connected to the positioning tube 61 by a handle connecting bolt 4. The positioning tube 61, the busbar connecting circular plate 62 and the busbar 8 can be rotated or moved horizontally by the handle 2.

[0032] The positioning plate 1 is provided with four threaded holes, which are evenly distributed around the axis of the circular hole on the positioning plate 1. The guide sleeve 51 is connected to the positioning plate 1 by four guide sleeve connecting bolts 3.

[0033] Annular grooves are provided on the inner walls of both ends of the guide sleeve 51, and guide rings 52 are provided in the annular grooves. The guide rings 52 and guide sleeves 51 are interference-fitted, and guide sleeves 51 and positioning plates 1 are interference-fitted.

[0034] It also includes a positioning pin 11 and a chamfered positioning pin 12. Positioning holes and positioning threaded holes are provided at both ends of the positioning plate 1. The positioning pin 11 and the chamfered positioning pin 12 pass through the two positioning holes and the hole on the busbar flange 10, respectively.

[0035] Example 3

[0036] like Figure 1 and Figure 4 As shown, this utility model proposes a high-precision device for centering and connecting GIS busbars. Compared with Embodiment 1 or Embodiment 2, this embodiment details the structure of the clamping mechanism.

[0037] Two sets of clamping mechanisms are provided, located at both ends of the positioning plate 1. Specifically, the clamping mechanism includes a clamping pin 91, a nut 92 threaded onto the clamping pin 91, and a wedge 93 contacting the end face of the busbar flange 10 facing away from the positioning plate 1. The clamping pin 91 has a slot 95 through which the wedge 93 passes. The clamping pin 91 is threaded into the positioning plate 1, specifically, the clamping pin 91 is threaded into the positioning threaded hole on the positioning plate 1. The nut 92 and the wedge 93 press the positioning plate 1 against the busbar flange 10. In an optional embodiment, the wedge 93 gradually decreases in size from one end to the other, and a round hole is provided on the larger end of the wedge 93 for easy finger operation. The clamping pin 91 and the wedge 93 are connected by a nylon rope 94 to prevent the wedge 93 from falling off or being lost.

[0038] In summary, during use, this utility model utilizes a positioning pin and a clamping mechanism to position and secure the positioning plate 1 and the busbar flange 10, and uses the central hole of the positioning plate 1 to determine the position of the guide sleeve 51. The guide sleeve 51 allows for free rotation of the busbar connecting plate 62 and the busbar 8, facilitating adjustment of the position of the busbar connecting plate 62. By connecting the busbar 8 to the busbar connecting plate 62 and rotating the handle 2 on the busbar connecting plate 62, high-precision alignment of the busbar 8 can be achieved.

[0039] In this invention, the device has low cost and is easy to install; it solves the problem of low accuracy of the 8-pair busbar centering connection, greatly improving the stability and safety of the equipment; it saves centering time during assembly and improves work efficiency.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A high-precision device for centering and connecting GIS busbars, comprising a busbar (8) and a busbar flange (10); characterized in that, Also includes: The positioning plate (1) has a circular hole at its center, which is coaxial with the busbar flange (10); The clamping mechanism installs the positioning plate (1) onto the busbar flange (10); The guide sleeve (51) passes through the round hole on the positioning plate (1) and is connected to the positioning plate (1); And a positioning tube (61) is provided, which passes through the guide sleeve (51). A busbar connecting round plate (62) is provided at the end of the positioning tube (61) away from the positioning plate (1). The busbar connecting round plate (62) and the positioning tube (61) are coaxial. The busbar (8) is coaxially connected with the busbar connecting round plate (62).

2. The high-precision device for GIS busbar alignment and connection according to claim 1, characterized in that, A handle (2) is provided at the end of the positioning tube (61), and the handle (2) is connected to the positioning tube (61) by a handle connecting bolt (4).

3. The high-precision device for GIS busbar alignment and connection according to claim 1, characterized in that, The positioning plate (1) has four threaded holes, and the guide sleeve (51) is connected to the positioning plate (1) by four guide sleeve connecting bolts (3).

4. The high-precision device for GIS busbar alignment and connection according to claim 1, characterized in that, Annular grooves are provided on the inner walls of both ends of the guide sleeve (51), and guide rings (52) are provided in the annular grooves.

5. The high-precision device for GIS busbar alignment connection according to claim 1, characterized in that, It also includes a positioning pin (11) and a chamfered positioning pin (12). Positioning holes and positioning threaded holes are provided at both ends of the positioning plate (1). The positioning pin (11) and the chamfered positioning pin (12) pass through the two positioning holes and the hole on the busbar flange (10), respectively.

6. The high-precision device for GIS busbar alignment connection according to claim 5, characterized in that, Two sets of clamping mechanisms are provided, and the two sets of clamping mechanisms are located at both ends of the positioning plate (1).

7. The high-precision device for GIS busbar alignment connection according to claim 6, characterized in that, The clamping mechanism includes a clamping pin (91), a nut (92) threaded onto the clamping pin (91), and a wedge (93) that contacts the end face of the busbar flange (10) facing away from the positioning plate (1). The clamping pin (91) has a slot (95), the wedge (93) passes through the slot (95), the clamping pin (91) is threaded onto the positioning plate (1), and the nut (92) and the wedge (93) press the positioning plate (1) onto the busbar flange (10).

8. The high-precision device for GIS busbar alignment connection according to claim 7, characterized in that, The clamping pin (91) and the wedge (93) are connected by a nylon rope (94).

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