A compressed air rotary device for a frame twisting machine

Abstract

The invention discloses a cable and wire manufacturing device, and particularly relates to a compressed air rotation device of a frame winch. The compressed air rotation device comprises an outer rotation ring, an inner rotation ring, sealing rings, support bearings, inner ring end cover pressure plates and U-shaped spring seals. The sealing rings are arranged between the outer rotation ring and the inner rotation ring, the U-shaped spring seals are respectively arranged on two sides of a middle step of the outer rotation ring, the sealing rings are respectively arranged on the outer sides of the U-shaped spring seals, the support bearings are respectively arranged on the outer sides of the sealing rings, the inner rotation ring penetrates the outer rotation ring and is fixedly connected with the U-shaped spring seals by bolts, the inner rotation ring and the U-shaped spring seals can rotate together via a spindle of the frame winch, and the inner ring end cover pressure plates are arranged on two sides of the inner rotation ring and are fixedly connected with the outer rotation ring by bolts, so that the end surfaces of the inner rotation ring can be fixed. The compressed air rotation device has the advantages that the compressed air rotation device is provided with the U-shaped spring seals, accordingly, problems of installation errors of O-shaped sealing rings and compressed air leakage due to abrasion of sealing lips after the sealing lips are used can be solved, and the service life of equipment can be prolonged.

Description

technical field [0001] The invention relates to a cable and wire manufacturing device, in particular to a compressed air rotary device for a frame stranding machine. Background technique [0002] At present, most of the energy used in the domestic production of wire and cable frame winch clamping coils is compressed air, but the compressed air required to supply the rotating frame winch is transmitted from the static pipeline to the rotating system through the compressed air rotary system. Each working part on the twisted body goes up, so as to achieve the supply of energy required by each working part when the twisted body of the frame winch machine rotates. [0003] The structure of the compressed air rotary device used in the frame twisting machine mostly uses the combination of copper-based graphite sealing structure and rubber O-ring to solve the static compressed air seal between the pipeline and the main shaft of the frame twisting machine. Since the copper-based grap...

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Problems solved by technology

[0003] The structure of the compressed air rotary device used in the frame twisting machine mostly uses the combination of copper-based graphite sealing structure and rubber O-ring to solve the static compressed air seal between the pipeline and the main shaft of the frame twisting machine. Since the copper-based graphite seal is composed of multiple seals Composition, when the main shaft of the frame stranding machine rotates, due to friction, the static copper-based graphite sealing ring and O-ring and the dynamic frame stranding machine main shaft will generate a lot of heat. Working at high temperature, the service life of copper-based graphite sealing ring and rubber O-ring is greatly shortened, causing air leakage, affecting the normal operation of the equipment, reducing the service life of the equipment and increasing the risk of production

[0004] In order to solve this problem, the traditional method is to add an additional cooling system to the structure of the copper-based graphite sealing ring and the O-ring, thereby reducing the temperature of the compressed air rotary system, but adding an additional cooling system will inevitably cause energy consumption. The loss of the equipment will also increase the manufacturing cost of the equipment

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