Discharging machine tap switch arc extinguishing device

Abstract

The utility model relates to the technical field of tapping machine equipment, in particular to an arc extinguishing device for a tapping machine tap switch, which comprises an insulating static connecting device, an insulating movable connecting device and a cylinder connected with one side of the insulating movable connecting device, the insulation protection grounding base is connected with the insulation static connection device, the insulation support is connected with the insulation protection grounding base, the air cylinder is connected to one side of the insulation support, and an output shaft of the air cylinder penetrates through and extends to one side of the insulation support; according to the device, the connection among the moving contact, the static contact and the insulation protection grounding base of the tap switch can be thoroughly cut off, so that the possibility of arc light short-circuit sparking is eliminated; according to the utility model, the ignition phenomenon of the tapping machine tap switch in the use process can be effectively prevented, the operation stability and reliability of equipment are improved, the damage and maintenance times of the equipment are reduced, and the production cost is reduced; and through the arrangement of the insulating bracket, the sparking phenomenon between the tap switch and the bottom plate of the tap switch is further prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of tapping machine equipment, in particular to an arc extinguishing device for a tap changer of a tapping machine. Background Art

[0002] In the tapping machine equipment, the tap changer of the tapping machine burner plays a key role in the process of tapping the burner eye.

[0003] In the prior art, as Figure 1 and 2 shown, the tap changer is composed of a cylinder 3, a connecting seat 4, a connecting plate 5, a first insulating plate 6, a first back plate 7, a first copper plate 8, a moving contact 9, a second insulating plate 10, a second back plate 11, a second copper plate 12, a static contact 13, a connecting rod 14, a mounting plate 16, and a double I-shaped bottom plate 19;

[0004] However, in the actual use process, the bottom plate 19 of the tap changer and the connecting rod 14 for fixing the cylinder 3 often have arcing phenomena, resulting in damage to the connection part and inability to continue using; at the same time, the insulating sleeves of the fixing bolts of the bottom plate 19 and the moving and static contacts 9 are heated for a long time, resulting in insulation damage, further causing the busbar to burn through and directly short-circuit to the ground, triggering serious arcing phenomena, resulting in damage to the bottom plate and copper busbar; each accident will cause serious equipment damage, requiring power outage and shutdown for emergency repair, with a long repair time and serious material waste. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an arc extinguishing device for a tap changer of a tapping machine, which is used to solve the problems that the bottom plate of the tap changer and the connecting rod of the fixed cylinder often have arcing phenomena, resulting in damage to the connection part; the insulating sleeves of the fixing bolts of the bottom plate and the moving and static contacts are heated for a long time, triggering serious arcing phenomena, resulting in damage to the bottom plate and copper busbar.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an arc extinguishing device for a tap changer of a tapping machine, including an insulating static connection device and an insulating dynamic connection device arranged at intervals, a cylinder connected to one side of the insulating dynamic connection device, and further including an insulating protection grounding base connected to the insulating static connection device, an insulating bracket connected to the insulating protection grounding base, the cylinder is connected to one side of the insulating bracket, and the output shaft of the cylinder penetrates and extends to one side of the insulating bracket.

[0007] Furthermore, the insulating protection grounding base includes two relatively arranged bottom plates, and two third insulating plates arranged at intervals between the two bottom plates. After the two bottom plates are spliced, they are in a double I-shaped shape, and one side of one bottom plate is connected to the insulating static connection device.

[0008] Further, the insulating support includes a mounting plate, two connecting rods connected to the mounting plate and arranged at intervals, an insulating sleeve sleeved on the outer wall of the connecting rod, the two connecting rods are connected to a bottom plate, and the air cylinder is connected to one side of the mounting plate.

[0009] Further, the thickness of the insulating sleeve is 3 mm.

[0010] Further, the insulating moving connection device is located between the two connecting rods; the insulating moving connection device includes a connecting seat connected to the output shaft of the air cylinder, a connecting plate connected to the connecting seat, a first insulating plate arranged on one side of the connecting plate, a first back plate arranged on one side of the first insulating plate, a first copper plate arranged on one side of the first back plate, and a moving contact arranged on one side of the first copper plate.

[0011] Further, the insulating static connection device includes a second insulating plate arranged on one side of a bottom plate, a second back plate arranged on one side of the second insulating plate, a second copper plate arranged on one side of the second back plate, and a static contact arranged on one side of the second copper plate and cooperating with the moving contact.

[0012] Further, the thicknesses of the first insulating plate, the second insulating plate, and the two third insulating plates are all 12 mm.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model has the following beneficial effects:

[0015] Through the setting of the insulating protection grounding base, the connection between the moving contact and the static contact of the tap changer and the insulating protection grounding base is completely cut off, thereby eliminating the possibility of arc short-circuit sparking; the present utility model can effectively prevent the sparking phenomenon that occurs during the use of the tap changer of the tapping machine, improve the operation stability and reliability of the equipment, reduce equipment damage and maintenance times, and reduce production costs;

[0016] Through the setting of the insulating support, the sparking phenomenon between the tap changer bottom plate is further prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of a conventional tap changer of a tapping machine;

[0018] Figure 2 is a schematic top view of a conventional tap changer of a tapping machine;

[0019] Figure 3 is a schematic structural diagram of the present utility model;

[0020] Figure 4 is a schematic top view of the present utility model.

[0021] In the figure: 1. Insulating protection grounding base; 2. Insulating bracket; 3. Cylinder; 4. Connecting seat; 5. Connecting plate; 6. First insulating plate; 7. First back plate; 8. First copper plate; 9. Moving contact; 10. Second insulating plate; 11. Second back plate; 12. Second copper plate; 13. Static contact; 14. Connecting rod; 15. Insulating sleeve; 16. Mounting plate; 17. Bottom plate; 18. Third insulating plate. Detailed implementation

[0022] Please refer to Figures 3-4 , an arc extinguishing device for a tap changer of a tapping machine, comprising an insulating static connection device and an insulating moving connection device arranged at intervals, a cylinder 3 connected to one side of the insulating moving connection device, and further comprising an insulating protection grounding base 1 connected to the insulating static connection device and an insulating bracket 2 connected to the insulating protection grounding base 1. The cylinder 3 is connected to one side of the insulating bracket 2, and the output shaft of the cylinder 3 penetrates and extends to one side of the insulating bracket 2; the insulating protection grounding base 1 includes two bottom plates 17 arranged oppositely, and two third insulating plates 18 arranged at intervals between the two bottom plates 17. The two third insulating plates 18 are detachably connected to the two bottom plates 17 by means of bolts. After the two bottom plates 17 are spliced, they form a double I-shaped structure, and one side of one bottom plate 17 is connected to the insulating static connection device; by arranging the two third insulating plates 18 between the two bottom plates 17, the connection between the moving contact 9 and the static contact 13 of the tap changer and the insulating protection grounding base 1 is completely cut off, thereby eliminating the possibility of arc short circuit and sparking; the utility model can effectively prevent the sparking phenomenon that occurs during the use of the tap changer of the tapping machine, improve the operation stability and reliability of the equipment, reduce the equipment damage and maintenance times, and reduce the production cost.

[0023] The insulating bracket 2 includes a mounting plate 16, two connecting rods 14 connected to the mounting plate 16 and arranged at intervals, and an insulating sleeve 15 sleeved on the outer wall of the connecting rods 14. The two connecting rods 14 are connected to one bottom plate 17, and the cylinder 3 is connected to one side of the mounting plate 16; the thickness of the insulating sleeve 15 is 3 mm; by arranging the insulating sleeve 15, the sparking phenomenon between the tap changer bottom plate 17 is further prevented.

[0024] The insulated moving connection device is located between two connecting rods 14; the insulated moving connection device includes a connection seat 4 connected to the output shaft of the cylinder 3, a connection plate 5 connected to the connection seat 4, a first insulating plate 6 provided on one side of the connection plate 5, a first back plate 7 provided on one side of the first insulating plate 6, a first copper plate 8 provided on one side of the first back plate 7, and a moving contact 9 provided on one side of the first copper plate 8; the insulated static connection device includes a second insulating plate 10 provided on one side of a bottom plate 17, a second back plate 11 provided on one side of the second insulating plate 10, a second copper plate 12 provided on one side of the second back plate 11, and a static contact 13 provided on one side of the second copper plate 12 and cooperating with the moving contact 9; the thicknesses of the first insulating plate 6, the second insulating plate 10, and the two third insulating plates 18 are all 12 mm; through the settings of the first insulating plate 6 and the second insulating plate 10, the arc erosion resistance of the moving contact 9 and the static contact 13 is improved, and the phenomenon of arcing during use is prevented.

[0025] Working principle: By providing two third insulating plates 18 between the two bottom plates 17, the connection between the moving contact 9 and the static contact 13 of the tap changer and the insulated protective grounding base 1 is completely cut off, thereby eliminating the possibility of arcing short - circuit and arcing; the utility model can effectively prevent the arcing phenomenon that occurs during the use of the tap changer of the out - of - furnace machine, improve the operation stability and reliability of the equipment, reduce equipment damage and the number of repairs, and reduce production costs;

[0026] Through the setting of the insulating sleeve 15, the arcing phenomenon between the tap changer bottom plate 17 is further prevented;

[0027] Through the settings of the first insulating plate 6 and the second insulating plate 10, the arc erosion resistance of the moving contact 9 and the static contact 13 is improved, and the phenomenon of arcing during use is prevented.

[0028] The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An arc extinguishing device for a tap changer of a tapping machine, comprising an insulating static connection device and an insulating dynamic connection device arranged at intervals, and a cylinder (3) connected to one side of the insulating dynamic connection device, characterized in that, It further includes an insulating protective grounding base (1) connected to the insulating static connection device, and an insulating bracket (2) connected to the insulating protective grounding base (1). The cylinder (3) is connected to one side of the insulating bracket (2), and the output shaft of the cylinder (3) penetrates and extends to one side of the insulating bracket (2); the insulating protective grounding base (1) includes two oppositely arranged bottom plates (17), and two third insulating plates (18) arranged at intervals between the two bottom plates (17). After the two bottom plates (17) are spliced, they form a double I-shaped structure, and one side of one bottom plate (17) is connected to the insulating static connection device.

2. The arc extinguishing device for the tap changer of the outfeed machine according to claim 1, characterized in that, The insulating bracket (2) includes a mounting plate (16), two connecting rods (14) connected to the mounting plate (16) and arranged at intervals, and an insulating sleeve (15) sleeved on the outer wall of the connecting rods (14). The two connecting rods (14) are connected to one bottom plate (17), and the cylinder (3) is connected to one side of the mounting plate (16).

3. The arc extinguishing device for the tap changer of the tapping machine according to claim 2, characterized in that, The thickness of the insulating sleeve (15) is 3 mm.

4. The arc extinguishing device for the tap changer of the discharging machine according to claim 2, characterized in that, The insulating dynamic connection device is located between the two connecting rods (14); the insulating dynamic connection device includes a connection seat (4) connected to the output shaft of the cylinder (3), a connecting plate (5) connected to the connection seat (4), a first insulating plate (6) arranged on one side of the connecting plate (5), a first back plate (7) arranged on one side of the first insulating plate (6), a first copper plate (8) arranged on one side of the first back plate (7), and a moving contact (9) arranged on one side of the first copper plate (8).

5. The arc extinguishing device for the tap changer of the discharging machine according to claim 4, characterized in that, The insulating static connection device includes a second insulating plate (10) arranged on one side of one bottom plate (17), a second back plate (11) arranged on one side of the second insulating plate (10), a second copper plate (12) arranged on one side of the second back plate (11), and a static contact (13) arranged on one side of the second copper plate (12) and cooperating with the moving contact (9).

6. The arc extinguishing device for the tap changer of the discharging machine according to claim 5, characterized in that, The thicknesses of the first insulating plate (6), the second insulating plate (10), and the two third insulating plates (18) are all 12 mm.

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