Frequency converter output harmonic suppressor of ladle turret of refining furnace

Abstract

The utility model discloses a frequency converter output harmonic suppressor of a ladle turret of a refining furnace, which belongs to the field of power transmission and comprises an output harmonic suppressor body. The output harmonic suppressor body comprises three groups of iron yokes communicated with three-phase circuit wires, winding coils communicated with the upper iron yoke and the lower iron yoke, iron cores for fixing the winding coils and a shell for fixing the iron yokes and the iron cores. Compared with the prior art, the device has the advantages that the flat plate gasket is arranged to be the T-shaped compaction column, the thin column end of the T-shaped compaction column penetrates through the wire ring and the wiring port of the iron yoke and then is directly fixed in the through hole in the bottom face of the U-shaped supporting base so as to fix a wire, a stud can loosen in time, and the wire cannot fall out of the wiring port; and the stud is fixed on the rotating plate which can rotate through the hinge, so that the electric wire ring and the wiring port are easier to align, and the wiring difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of power transmission, specifically refers to a frequency converter output harmonic suppressor of refining furnace ladle rotary table. BACKGROUND

[0002] Steel as the most common material at present stage, because it has good strength, toughness and variety, is applied to each aspect in the building and life, in the smelting process of steel, in order to transfer molten steel, usually needs the refining furnace ladle rotary table to assist transfer, and in the working process of the refining furnace ladle rotary table, in order to reduce the motor will not be affected by the high frequency clutter of frequency converter and the efficiency, usually the input and output of frequency converter are connected with corresponding harmonic suppressor, to keep the purity of circuit.

[0003] The existing frequency converter output harmonic suppressor is mainly composed of an iron core, a winding coil wound on the iron core and an iron yoke connected with input and output wires, wherein the iron yoke is distributed at the head and tail of the winding coil, and the wire connection port of the iron yoke is inserted through the shell of the iron core to connect the wires.

[0004] In the connection process of the wires, people usually align the wire ring of the connecting wire with the wire connection port of the iron yoke and directly fix it with screws, and after fixing the connection, the wire connection end of the iron yoke is directly exposed outside, which is easy to cause electric injury by accidental touch during maintenance. The existing downward pressing connection structure usually places a flat gasket movable by screws above the wire connection port of the iron yoke, and the wires are pressed between the wire connection port of the iron yoke and the flat gasket by rotating the screws. Once the screws are loose or the wires are aged, it is likely to cause open circuit or poor contact, and during installation, the wires cannot be uniformly pressed (when there is no wire ring and the wires are directly inserted for connection). CONTENT OF THE UTILITY MODEL

[0005] The technical problem to be solved by the utility model is that the wire connection port of the frequency converter output harmonic suppressor of the existing refining furnace ladle rotary table mostly has no corresponding protection measures, and the existing wiring method is prone to cause wire loosening.

[0006] To solve the above technical problems, the utility model provides a technical scheme for a frequency converter output harmonic suppressor of a refining furnace ladle rotary table, which comprises an output harmonic suppressor body, the output harmonic suppressor body comprises three groups of iron yokes connected with three-phase circuit conductors, winding coils connected with upper and lower iron yokes, an iron core for fixing the winding coils, and a shell for fixing the iron yokes and the iron core, a wire fixing assembly is arranged on the iron yoke terminal, the wire fixing assembly comprises a U-shaped support seat below the iron yoke terminal, a T-shaped compaction column above the iron yoke terminal, and a stud for driving the T-shaped compaction column to move, a rotating plate connected with the shell through a hinge is arranged above the U-shaped support seat, the threaded end of the stud passes through the rough surface end of the T-shaped compaction column and the rotating plate, and the thin column end of the T-shaped compaction column passes through the bottom surface of the cavity of the U-shaped support seat and the terminal of the iron yoke.

[0007] As an improvement, the shell comprises a fixing sleeve connected with the upper and lower ends of the iron core through bolts and a dust cover for sealing the winding coils, and the dust cover is connected with the fixing sleeve through a pin structure.

[0008] As an improvement, the terminal of the iron yoke passes through one side of the dust cover, and the other side of the dust cover is provided with a sliding clamping groove for fixing the positioning plate of the frequency converter.

[0009] As an improvement, the upper side of the fixing sleeve is provided with a rotating fixing plate connected with the rotating plate, and the U-shaped support seat and the dust cover and the rotating fixing plate and the fixing sleeve are all connected through welding.

[0010] As an improvement, the iron core passes through the connecting end side wall of the iron yoke and the winding coil.

[0011] As an improvement, the upper side of the stud is provided with an insulating knob cap.

[0012] Compared with the prior art, the device has the following advantages: the flat gasket is arranged as a T-shaped compaction column, the thin column end of the T-shaped compaction column passes through the wire ring and the terminal of the iron yoke, and is directly fixed in the bottom surface via hole of the U-shaped support seat, so that the conductor is fixed, the stud is timely loosened, the conductor does not fall out of the terminal, and the stud is fixed on the rotating plate which can rotate through the hinge, so that the wire ring and the terminal are more easily aligned, and the difficulty of wiring is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is the overall structure diagram of the frequency converter output harmonic suppressor of the refining furnace ladle rotary table.

[0014] Figure 2 is the wire fixing assembly expansion diagram of the frequency converter output harmonic suppressor of the refining furnace ladle rotary table.

[0015] Figure 3The utility model relates to a sliding clamping groove structure diagram of the frequency converter output harmonic suppressor of a refining furnace ladle rotary table.

[0016] Figure 4 The utility model relates to a total structure sectional view of the frequency converter output harmonic suppressor of a refining furnace ladle rotary table.

[0017] As shown in the figure: 1, output harmonic suppressor body, 11, iron yoke, 12, winding coil, 13, iron core, 14, shell, 141, fixed sleeve, 142, dust cover, 143, sliding clamping groove, 2, wire fixing assembly, 21, U-shaped support seat, 22, T-shaped compaction column, 23, stud, 231, insulating knob cap, 24, rotating plate, 241, rotating fixed plate. Specific implementation

[0018] The utility model makes further detailed explanation in combination with the drawings.

[0019] As shown in the figure Figure 1 , 3 , 4, including output harmonic suppressor body 1, the output harmonic suppressor body 1 includes three groups of iron yokes 11 that communicate three-phase circuit wire, winding coil 12 that communicates upper and lower iron yokes 11, the iron core 13 that fixes winding coil 12 and the shell 14 that fixes each group of iron yokes 11 and iron core 13, the iron core 13 passes through the connecting end side wall of iron yoke 11 and winding coil 12, and the two sides of iron yoke 11 are provided with the wiring port of connecting wire and the sleeve ring of being sleeved on the outer wall of iron core 13 respectively, after winding coil 12 is wound on iron core 13, three pairs of iron yokes 11 are respectively sleeved in the upper and lower ends of iron core 13, and iron yoke 11 is in contact with the end of winding coil 12.

[0020] The shell 14 includes fixed sleeve 141 that is connected with the upper and lower ends of iron core 13 through bolt and dust cover 142 that seals winding coil 12, the dust cover 142 is connected with fixed sleeve 141 through pin structure, the wiring port of iron yoke 11 passes through one side of dust cover 142, the other side of dust cover 142 is equipped with the sliding clamping groove 143 for fixing the positioning plate of frequency converter, dust cover 142 is sleeved on winding coil 12 (pay attention to the wiring end of iron yoke 11 is placed on the wiring port of dust cover 142), the threaded hole on fixed sleeve 141 is aligned with the screw hole of iron core 13, fixed sleeve 141 is ladder-shaped, the thin column end of fixed sleeve 141 is clamped on the inner wall of dust cover 142, and dust cover 142 and fixed sleeve 141 are pressed tightly, at this time, the iron yoke 11 in the inside of fixed sleeve 141 and winding coil 12 are also compacted, guarantee that the breakage between the two does not appear, finally, the screw is screwed into the screw hole on both sides of iron core 13 and is fixed.

[0021] As shown in the figure Figure 1 , 2As shown in FIGS. 4, the iron yoke 11 wiring port is provided with a wire fixing assembly 2, the wire fixing assembly 2 comprises a U-shaped support seat 21 located below the iron yoke 11 wiring port, a T-shaped compaction column 22 located above the iron yoke 11 wiring port, and a stud 23 driving the displacement of the T-shaped compaction column 22, an insulating knob cap 231 is arranged above the stud 23, a rotating plate 24 connected with the shell 14 through a hinge is arranged above the U-shaped support seat 21, the threaded end of the stud 23 penetrates through the rough surface end of the T-shaped compaction column 22 and the rotating plate 24, the thin column end of the T-shaped compaction column 22 penetrates through the bottom surface of the U-shaped support seat 21 and the wiring port of the iron yoke 11, the U-shaped support seat 21 is placed below the wiring end of the iron yoke 11, the T-shaped compaction column 22 through holes of the two are aligned, the U-shaped support seat 21 body is welded on the dust cover 142 using a welding machine, after the stud 23 is screwed into the internal screw hole of the rotating plate 24, the screw hole surface of the thick column end of the T-shaped compaction column 22 is screwed on the stud 23, the thin column end of the T-shaped compaction column 22 is inserted into the bottom surface through hole of the U-shaped support seat 21, the open end of the U-shaped support seat 21 is closed by the rotating plate 24, the side wall of the rotating fixing plate 241 is fixed with the rotating plate 24 using a hinge, and the rotation angle of the rotating plate 24 is outward. The hinge needs to be fixed on the top end side of the rotating plate 24, and then the bottom surface of the rotating fixing plate 241 is welded on the fixed sleeve 141 using a welding machine.

[0022] In the specific implementation, the output wire of the frequency converter and the input wire of the motor are respectively placed at the input end and the output end of the three iron yokes 11, the wire ring through hole at the top end of the wire is aligned with the through hole of the iron yoke 11 wiring end, the rotating plate 24 is covered, the thin column end of the T-shaped compaction column 22 is screwed into the bottom surface through hole of the U-shaped support seat 21 by rotating the insulating knob cap 231, and the thick column surface of the T-shaped compaction column 22 is compacted on the wire ring, so as to prevent the wire from loosening.

[0023] The above describes the utility model and its implementation mode, which is not limited, and the embodiment shown in the drawings is only one of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the utility model, similar structure modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A converter output harmonic suppressor of a ladle turret of a refining furnace, comprising an output harmonic suppressor body (1) including three sets of iron yokes (11) communicating three-phase circuit conductors, winding coils (12) communicating upper and lower iron yokes (11), an iron core (13) fixing the winding coils (12), and a housing (14) fixing the sets of iron yokes (11) and the iron core (13), characterized in that: The iron yoke (11) wiring port is provided with a wire fixing assembly (2), the wire fixing assembly (2) includes a U-shaped support seat (21) located below the iron yoke (11) wiring port, a T-shaped compaction column (22) located above the iron yoke (11) wiring port and a stud (23) driving the displacement of the T-shaped compaction column (22), the upper portion of the U-shaped support seat (21) is provided with a rotating plate (24) connected with the shell (14) through a hinge, the threaded end of the stud (23) penetrates the rough surface end of the T-shaped compaction column (22) and the rotating plate (24), the thin column end of the T-shaped compaction column (22) penetrates the cavity bottom surface of the U-shaped support seat (21) and the wiring port of the iron yoke (11).

2. A frequency converter output harmonic suppressor for a ladle turret of a refining furnace according to claim 1, characterized in that The shell (14) includes a fixed sleeve (141) connected with the upper and lower ends of the iron core (13) through bolts and a dust cover (142) sealing the winding coil (12), and the dust cover (142) is connected with the fixed sleeve (141) through a pin structure.

3. A frequency converter output harmonic suppressor for a ladle turret of a refining furnace according to claim 2, characterized in that The wiring port of the iron yoke (11) penetrates one side of the dust cover (142), and the other side of the dust cover (142) is provided with a sliding clamping groove (143) for fixing the frequency converter positioning plate.

4. A frequency converter output harmonic suppressor for a ladle turret of a refining furnace according to claim 2, characterized in that: The upper portion of the fixed sleeve (141) is provided with a rotating fixed plate (241) connected with the rotating plate (24), and the U-shaped support seat (21) and the dust cover (142) and the rotating fixed plate (241) and the fixed sleeve (141) are all connected through welding.

5. A frequency converter output harmonic suppressor for a ladle turret of a refining furnace according to claim 1, characterized in that: The iron core (13) penetrates the connecting end side wall of the winding coil (12) and the iron yoke (11).

6. A frequency converter output harmonic suppressor for a ladle turret of a refining furnace according to claim 1, characterized in that: The upper portion of the stud (23) is provided with an insulating knob cap (231).

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