Rotary water passing device

Abstract

The invention discloses a rotary water passing device which comprises a fixed pipeline and a rotating pipeline, wherein the inner wall of the end part of the fixed pipeline is rotatably matched with the outer wall of the end part of the rotating pipeline through locating bearings and seals; a shaftless motor is arranged at the connection part of the fixed pipeline and the rotating pipeline; the shaftless motor comprises a motor rotor permanent magnet fixed to the outer wall of the rotating pipeline, and a motor stator and shell fixedly arranged at the end part of the fixed pipeline; stator windings are arranged on motor stators; and the motor stator and shell are rotatably matched with the rotating pipeline through two groups of loading bearings. According to the rotary water passing device, the fixed pipeline is combined with the rotating pipeline through the locating bearings and the seals, and the sealing and rotating performances meet the requirement of a water cannon; the shaftless motor is rotatably matched with the rotating pipeline through two groups of loading bearings, so that the water cannon structure is more stable, and when the water cannon is applied to injection, the structures operate more effectively and are matched more steadily; the locating bearings are arranged in corresponding grooves where the inner wall of the fixed pipeline is matched with the outer wall of the rotating pipeline, so that the pipeline displacement is limited, and the integral structure is more stable.

Description

technical field [0001] The invention belongs to the field of design and manufacture of rotating machinery, in particular to the technical field of design and manufacture of electromechanical rotating mechanisms, and particularly relates to a rotating water passing device. Background technique [0002] In order to realize the spraying of fire extinguishing agent in the whole area, the existing fire water monitors use a motor to drive a gear mechanism to drive the horizontal or up and down rotation of the fire nozzle. The rotation structure is relatively complicated, the manufacturing cost is high, and the energy consumption is large during use. [0003] The conventional motor is a motor whose rotating shaft cannot pass through the medium. The rotating shaft of the conventional shaftless motor replaces the traditional rotor with a flange. The structure cannot meet the requirements of the fire water monitor, especially the sealing structure of the existing shaftless motor. Neit...

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Problems solved by technology

[0002] In order to realize the spraying of fire extinguishing agent in the whole area, the existing fire water cannon adopts the motor to drive the gear mechanism to drive the horizontal or up and down rotation of the fire nozzle. The rotation structure is relatively complicated, the manufacturing cost is high, and the energy consumption is large during use.

[0003] The conventional motor is a motor whose rotating shaft cannot pass through the medium. The rotating shaft of the conventional shaftless motor replaces the traditional rotor with a flange. The structure cannot meet the requirements of the fire water monitor, especially the sealing structure of the existing shaftless motor. Both the nozzle pipe and nozzle connection structure of the fire water monitor cannot meet the requirements of fire extinguishing applications

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