CN202405714U - Anti-swirl lifting support - Google Patents

Abstract

The utility model relates to an auxiliary tool of a power supply bus system, concretely to an anti-swirl lifting support. The anti-swirl lifting support comprises suspension rods, cross-arms and insulators; the cross-arms are provided with the insulators; upper and lower end faces of the cross-arms are provided with installing holes; the suspension rods traverse the installing holes and are connected to the cross-arms through upper and lower nuts; insulating tubes are arranged between the installing holes of the cross-arms and the suspension rods; table mats and insulation pads are provided between the nuts and the cross-arms. According to the above structure, the cross-arms and the suspension rods are in insulation connection, which can avoid forming a return circuit with a building grounding system, and thereby can avoid the problems of energy loss and the heating of a suspension bracket and guarantee the reliable operation of a power transmission bus.

Description

Anti-eddy current lifting bracket

technical field

The utility model relates to an auxiliary tool for a power supply busbar system, in particular to an anti-eddy current hoisting bracket.

Background technique

The hoisting bracket of ordinary power transmission bus plays the role of supporting and hoisting equipment in engineering installation equipment. However, when hoisting the busbar equipment that transmits AC power, since the ordinary hoisting brackets are made of iron materials, they will form a loop with the grounding system, and the alternating magnetic field generated by the hoisted phase A, B, and C busbars will make the Eddy currents are generated on the hoisting brackets. The eddy currents formed will not only cause energy loss but also cause the hanger to heat up. In severe cases, it will affect the normal power transmission and distribution of A, B, and C phase buses.

Contents of the invention

The technical problem to be solved by the utility model is to provide an anti-eddy current hoisting bracket capable of preventing eddy current generation and ensuring normal power transmission and distribution.

In order to solve the above-mentioned technical problems, the anti-eddy current hoisting bracket of the present invention includes a boom, a cross arm and an insulator. The cross arm is provided with an insulator; the upper and lower ends of the cross arm are provided with mounting holes, and the boom passes through the mounting hole and passes through the upper and lower nuts. Connected to the cross arm, an insulating tube is arranged between the mounting hole of the cross arm and the boom, and bowl pads and insulating gaskets are placed between the nut and the cross arm, so that the boom and the cross arm are insulated from each other.

There are more than two suspenders arranged in parallel on the cross arms, and the insulators are arranged between the suspenders.

The cross arm is channel steel.

After adopting the above structure, due to the insulated connection between the cross arm and the boom, the formation of a loop with the grounding system of the building is avoided, thereby avoiding the energy loss and the heat generation of the hanger caused by the eddy current generated between the boom and the cross arm Problems, to ensure the reliable operation of the transmission bus.

Description of drawings

Fig. 1 is the front view of the anti-eddy current hoisting bracket of the utility model;

Fig. 2 is the A-A view of the anti-eddy current hoisting bracket of the utility model.

Detailed ways

Below, the anti-eddy current hoisting bracket of the present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.

As shown in the figure, the anti-eddy current hoisting bracket of the utility model includes a boom 1, a cross arm 2 and an insulator 3, and the cross arm 2 is a channel steel; the boom and the channel steel are used as the main materials of the utility model anti-eddy current hoisting bracket , where the suspender is used as the supporting lifting point, and the channel steel is used as the cross arm. The cross arm 2 is arranged at the bottom of the boom 1, and the cross arm 2 is provided with an insulator 3; the upper and lower ends of the cross arm 2 are provided with mounting holes, and the boom 1 passes through the mounting holes and is connected to the cross arm 2 through the upper and lower nuts 4 An insulating tube 7 is provided between the cross arm 2 and the boom 1 to prevent the contact between the boom 1 and the cross arm 2; to avoid the formation of a closed magnetic circuit with the grounding system of the building, the connection between the nut 4 and the cross arm 2 Also be provided with bowl pad 5 and insulating spacer 6 between, to prevent contact with channel steel by nut suspender.

There are more than two suspenders 1 arranged in parallel on the cross arm 2 , and the insulators 3 are arranged between the suspenders 1 . In the illustrated embodiment, A, B, C, and N-phase power transmission buses are installed on the insulators on the cross arms of the anti-eddy current lifting bracket.

Claims (3)

1. an anti-eddy current hoisting bracket comprises suspension rod (1), cross-arm (2) and insulator (3), and it is characterized in that: cross-arm (2) is provided with insulator (3); Place, cross-arm (2) upper and lower end face is provided with installing hole; Suspension rod (1) passes installing hole and is connected on the cross-arm (2) through last lower nut (4); Be provided with insulated tube (7) between the installing hole of cross-arm (2) and the suspension rod (1), be lined with bowl pad (5) and insulation spacer (6) between said nut (4) and the cross-arm (2).

2. according to the described anti-eddy current hoisting bracket of claim 1, it is characterized in that: said suspension rod (1) is set to more than two and is set in parallel on the cross-arm (2), and said insulator (3) is arranged between the suspension rod (1).

3. according to claim 1 or 2 described anti-eddy current hoisting brackets, it is characterized in that: said cross-arm (2) is a channel-section steel.

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