CN108054667A - 27.5kV indoor vacuum circuit breakers are shaken into mechanism mounting assembly - Google Patents

Abstract

The invention relates to a 27.5kV indoor vacuum circuit breaker racking mechanism installation assembly. The assembly includes two symmetrical frames fixedly connected by a column channel steel, a diagonal brace channel steel, and an installation channel steel. The positioning plate is fixedly connected to form the installation assembly of the racking mechanism. The two frames are fixed on the mounting frame of the handcart of the 27.5kV indoor vacuum press-in circuit breaker through M12X40 bolts, and the racking mechanism of the handcart of the 27.5kV indoor vacuum racking circuit breaker Lock the deadbolt into the reserved opening of the positioning plate of the racking mechanism installation assembly. The beneficial effect is that the component matches the 27.5kV indoor vacuum racking circuit breaker handcart with the 27.5kV indoor vacuum press-in circuit breaker handcart mounting frame, simulating the 27.5kV indoor vacuum racking circuit breaker handcart The working state in the XYN cabinet is convenient for adjusting the cutting amount of the conductive contact of the handcart and the position signal of the travel switch, etc., ensuring the effective cooperation between the swing-in handcart and the XYN cabinet, and providing a huge guarantee for the safe power supply of the catenary.

Description

27.5kV indoor vacuum circuit breaker racking mechanism installation components

technical field

The invention relates to a mounting assembly for a racking mechanism of a 27.5kV indoor vacuum circuit breaker. The application of the assembly makes it possible to match a racking type circuit breaker handcart with a press-in type circuit breaker handcart mounting frame.

Background technique

With the development of my country's railway construction, electrified railway construction has entered a stage of rapid development. The opening and operating mileage of electrified railways has increased rapidly, making the total mileage of electrified railways in my country rank among the top in the world. The update and optimization of train traction power provides more favorable conditions for improving the efficiency of railway transportation and social and economic benefits, but at the same time there is an urgent need for a safer and more efficient railway power supply network, especially labor safety will be faced with unprecedented severe test.

As the safety barrier of the high-voltage room of the railway substation and switching station, the grid interval is gradually being replaced by the high-voltage switchgear with a higher protection level. Compared with the grid interval, the high-voltage switchgear has the advantages of preventing closing on load, preventing closing on grounding wire, preventing stray into live interval, preventing live wire from hanging ground wire and preventing load from pulling the switch. Therefore, the 27.5kV vacuum circuit breaker, the most important equipment in the switching station of the substation, is also installed in the XYN cabinet instead of the previous L-shaped bracket.

The impact of the change of installation location on production commissioning cannot be ignored. The 27.5kV vacuum circuit breaker is installed in the high-voltage switchgear, and the space is narrow, which is not conducive to the entry and operation of personnel, and it is not convenient to inspect and adjust the cutting amount of the conductive contact of the handcart and the position of the travel switch. The existing method is to push the trolley to the working position in the XYN cabinet first, then pull the trolley out of the cabinet when adjustment is required, and then push it to the working position after adjustment, the process is cumbersome and repetitive. With the continuous increase of electrified railways and substations, the order volume of rack-in circuit breakers in high-voltage cabinets will continue to increase. In order to simplify the adjustment and inspection method of 27.5kV indoor vacuum rack-in circuit breakers, we are eager to develop a convenient Quick and easy installation of components.

Contents of the invention

In order to solve the problems existing in the above-mentioned technologies, the purpose of the present invention is to provide a 27.5kV indoor vacuum circuit breaker racking mechanism installation assembly, the application of the assembly, the 27.5kV indoor vacuum racking type circuit breaker handcart and 27.5 It is possible to cooperate with the installation frame of the kV indoor vacuum press-in circuit breaker handcart, which will simulate the working state of the 27.5kV indoor vacuum swing-in circuit breaker handcart in the XYN cabinet (box-type handcart mobile indoor cabinet), which is convenient Adjust the cutting amount of the conductive contact of the handcart and the position of the travel switch, etc., adjust the performance of the handcart to the best state, and ensure the perfect cooperation between the 27.5kV indoor vacuum swing-in handcart and the XYN cabinet.

In order to achieve the above purpose, the technical solution adopted by the present invention is to provide a 27.5kV indoor vacuum circuit breaker rocking mechanism installation assembly, wherein: the assembly includes column channel steel, diagonal brace channel steel, and installation channel steel fixedly connected The two symmetrical frames are fixed and connected with positioning plates on both sides of the top of the second frame to form the installation assembly of the racking mechanism. The two frames are fixed on the handcart mounting frame of the 27.5kV indoor vacuum press-in circuit breaker through M12X40 bolts, and the 27.5kV indoor The handcart of the vacuum racking circuit breaker slides on the track of the installation frame of the handcart of the 27.5kV indoor vacuum press-in circuit breaker. Insert it into the reserved opening of the positioning plate of the mechanism installation component.

The effect of the present invention is that the component is installed on the mounting frame of the 27.5kV indoor vacuum push-in type circuit breaker handcart, simulating the working state of the 27.5kV indoor vacuum push-in type circuit breaker handcart in the XYN cabinet. There is ample space on both sides of the handcart, which is convenient for adjusting the cutting amount of the conductive contact of the handcart and the position signal of the travel switch, etc., and adjusts the performance of the handcart to the best state, avoiding the need to repeatedly push and push out the XYN cabinet due to insufficient space during adjustment in the cabinet Work. It is convenient to adjust the cutting amount of the conductive contact of the handcart and the position signal of the travel switch, etc., adjust the performance of the handcart to the best state, ensure the effective and perfect cooperation between the swing-in handcart and the XYN cabinet, and provide a huge guarantee for the safe power supply of the catenary .

The use of the 27.5kV indoor vacuum circuit breaker racking mechanism installation components can reduce the 10% accident rate of the 27.5kV indoor vacuum racking circuit breaker, and effectively improve the work efficiency of workshop adjustment and inspection by 40%.

Description of drawings

Fig. 1 and Fig. 2 are schematic diagrams of the left frame and the right frame of the installation assembly of the 27.5kV indoor vacuum circuit breaker swing-in mechanism of the present invention;

Fig. 3 is a schematic diagram of the installation of the test position of the 27.5kV indoor vacuum circuit breaker of the present invention in the swing-in mechanism;

Fig. 4 is a schematic diagram of installation of the working position of the 27.5kV indoor vacuum circuit breaker in the present invention.

In the picture:

1. M16X65 bolts 2. M12X40 bolts 3. Positioning plate 4. Column channel steel 5. Slant brace channel steel

6. Install the channel steel 7. Install components for the racking mechanism 8. 27.5kV indoor vacuum racking circuit breaker handcart

9. Handcart mounting frame for 27.5kV indoor vacuum press-in circuit breaker 10. Rocking mechanism

11. Conductive contacts on the handcart of the circuit breaker 12. M12X45 bolts 13. Conductive contacts under the handcart of the circuit breaker

14. M12X45 bolts 15. Travel switch at the bottom of the circuit breaker handcart

Detailed ways

The structure of the 27.5kV indoor vacuum circuit breaker racking mechanism installation assembly of the present invention will be described in conjunction with the accompanying drawings.

The 27.5kV indoor vacuum circuit breaker swing-in mechanism mounting assembly of the present invention uses the feature of the triangular frame that is not easy to deform to design a new structure, that is, the original 27.5kV indoor vacuum press-in circuit breaker handcart mounting Components will be suitable for 8 adjustment inspections of 27.5kV indoor vacuum racking circuit breakers.

The installation assembly structure of the 27.5kV indoor vacuum circuit breaker rocking mechanism of the present invention is that the assembly includes two symmetrical frames fixedly connected by column channel steel 4, diagonal brace channel steel 5, and installation channel steel 6. Both sides are respectively fixedly connected with the positioning plate 3 to form a racking mechanism installation assembly 7. The two frames are fixed on the handcart mounting frame 9 of the 27.5kV indoor vacuum press-in circuit breaker through M12X40 bolts 2, and the 27.5kV indoor vacuum racking-in circuit breaker The handcart 8 slides on the track of the handcart mounting frame 9 of the 27.5kV indoor vacuum press-in circuit breaker, and the lock tongue of the racking mechanism 10 in the handcart 8 of the 27.5kV indoor vacuum racking circuit breaker is locked into the racking In the reserved opening of the positioning plate 3 of the mechanism installation assembly 7.

The frame is fixedly connected by column channel steel 4, diagonal brace channel steel 5, installation channel steel 6 to form a triangular frame. The positioning plate 3 is connected to the top of the frame welded on both sides by M16X65 bolts 1, the bending surfaces on both sides of the positioning plate 3 are provided with reserved openings, and the 27.5kV indoor vacuum press-in circuit breaker handcart mounting frame 9 both sides are connected and fixed with the reserved opening of the web plate for installing the channel steel 6.

The structure and function of the installation component of the 27.5kV indoor vacuum circuit breaker in the swinging mechanism of the present invention are realized in the following way:

As shown in Figures 1 and 2, the column channel steel 4 is used to install the channel steel 6 for welding, and the top positioning plate 3 is connected to the weldment with M16X65 bolts 1. The positioning plate 3 has reserved openings for fixing 27.5kV indoor vacuum Rack-in circuit breaker handcart crank-in mechanism 10 is used for lock tongue, two M12X40 bolts 2 are connected to install channel steel 627.5kV indoor vacuum press-in circuit breaker handcart mounting frame 9. Thus simulating the working state of the 27.5kV indoor vacuum swing-in circuit breaker handcart in the XYN cabinet.

Weld the column channel steel 4 to the diagonal support channel steel 5 and install the channel steel 6. The top positioning plate 3 is connected to the welded parts with M16X65 bolts 1. The positioning plate 3 reserves a hole for fixing the locking tongue of the rocking mechanism 10, and the channel steel 6 is installed. Reserved openings are used for fixing the handcart mounting frame 9 of the press-in type circuit breaker.

As shown in Figure 3, use M12X40 bolts 2 to fix the racking mechanism installation assembly 7 on the press-in circuit breaker handcart mounting frame 9, and manually push the 27.5kV indoor vacuum racking circuit breaker handcart 8 into the 27.5kV household Inside the vacuum press-in type circuit breaker handcart mounting frame 9 rails, lock the locking tongue of the racking mechanism 10 into the reserved opening of the positioning plate 3 of the racking mechanism installation component 7, 27.5kV indoor vacuum racking type circuit breaker The handcart 8 enters the test position, adjust the test position signal of the travel switch 15 at the bottom of the circuit breaker handcart, and the test position is adjusted.

As shown in Figure 4, the rocking and rocking mechanism 10, the 27.5kV indoor vacuum rocking type circuit breaker handcart 8 is moved forward to the working position, and the M12X45 bolt 12 at the conductive contact 11 on the circuit breaker handcart is adjusted, and the circuit breaker handcart M12X45 bolts 14 at the 13 places of the lower conductive contact, the cutting distance of the two contacts is preferably 3-5mm, adjust the working position signal of the travel switch 15 at the bottom of the circuit breaker handcart, and the working position is adjusted.

Claims (3)

1. A 27.5kV indoor vacuum circuit breaker racking mechanism installation assembly, which is characterized in that: the assembly includes a column channel steel (4), a diagonal support channel steel (5), and a mounting channel steel (6) fixedly connected The two symmetrical frames are fixedly connected to the positioning plate (3) on both sides of the top of the second frame to form the installation assembly (7) of the rocking mechanism. On the trolley mounting frame (9), the handcart (8) of the 27.5kV indoor vacuum push-in circuit breaker slides on the track of the handcart mounting frame (9) of the 27.5kV indoor vacuum press-in circuit breaker. The deadbolt of the racking mechanism (10) in the vacuum racking circuit breaker handcart (8) is locked into the reserved opening of the positioning plate (3) of the racking mechanism installation component (7). 2. According to claim 1, the 27.5kV indoor vacuum circuit breaker rocking mechanism installation assembly is characterized in that: the frame is fixed by the column channel steel (4), the diagonal support channel steel (5) and the installation channel steel (6) A frame connected as a triangle. 3. According to claim 1, the 27.5kV indoor vacuum circuit breaker rocking mechanism installation assembly is characterized in that: the positioning plate (3) is connected to the top of the frame welded on both sides with M16X65 bolts (1), and the positioning plate The bending surfaces on both sides of (3) are provided with reserved openings, and the reserved openings on both sides of the 27.5kV indoor vacuum press-in circuit breaker handcart mounting frame (9) and the web plate for installing channel steel (6) The hole connection is fixed.