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Dynamic sealing device for long-endurance watertight counter rotating motor

A sealing device and long-endurance technology, which is applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve problems such as high cost, large volume and weight, and complex mechanism, and achieve the effect of improving service life

Inactive Publication Date: 2012-08-01
710TH RES INST OF CHINA SHIPBUILDING IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: complex mechanism, large volume and weight, and high cost

Method used

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  • Dynamic sealing device for long-endurance watertight counter rotating motor
  • Dynamic sealing device for long-endurance watertight counter rotating motor

Examples

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing embodiment, the present invention is described in detail:

[0014] A long-endurance watertight counter-rotating motor dynamic sealing device, comprising: an inner shaft oil plug 1, an inner shaft gland 2, an outer shaft gland 3, an inner shaft seal seat 4, and an outer shaft seal seat 5;

[0015] The outer shaft seal seat 5 is fixedly connected to the motor, and the outer shaft seal seat 5 is fixedly connected to the motor, and an annular groove is provided in the middle section of the inner cavity; when the outer shaft 11 is connected to the outer shaft seal seat 5, its Cooperate with the annular groove to form an outer shaft oil chamber 9, and two outer shaft O-rings 13 are arranged on the left and right sides of the outer shaft oil chamber 9 to seal the outer shaft 11, and the outer shaft oil chamber 9 is filled with Fill with butter, and lubricate the contact surface between the outer shaft O-ring 13 and the outer shaft...

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Abstract

The invention provides a dynamic sealing device for a long-endurance watertight counter rotating motor, which belongs to the technical field of mechanical seal. The technical scheme includes that an outer shaft sealing seat (5) is fixedly connected onto the motor, and an outer shaft (11) is sealed by two internal 45-degree mold splitting outer shaft O-shaped rings (13); an inner shaft sealing seat (4) is fixedly connected to the inner diameter of the front end of the outer shaft (11) via an outer shaft gland (3), and an inner shaft (12) is sealed by an internal 45-degree mold splitting front O-shaped ring (7) and an internal 45-degree mold splitting rear O-shaped ring (8) with the diameter larger than that of the front O-shaped ring (7); an inner shaft oil plug (1) is arranged at the front end of the inner shaft, when a lubricating oil cavity (10) is vacuumized and lubricating oil is injected into the lubricating oil cavity (10), the inner shaft oil plug (1) is drawn outwards, and the lubricating oil cavity (10) is communicated with the outside via an oil injection hole (6); and after the lubricating oil cavity (10) is filled with the lubricating oil, the inner shaft oil plug (1) is pushed inwards, and is fixed at the front end of the inner shaft via an inner shaft gland (2). The dynamic sealing device is applicable to sealing a shaft outlet position of the watertight motor, and realizes dynamic sealing of the long-endurance watertight counter rotating motor.

Description

technical field [0001] The invention relates to the technical field of underwater navigation, in particular to the technical field of mechanical sealing. Background technique [0002] With the demand for the development of marine resources, the requirements for voyages are getting higher and higher, and the requirements for voyage time are getting longer and longer. The counter-rotating propeller can not only obtain higher propulsion efficiency, but also does not have the problem of reverse torque generated by single propeller propulsion. Therefore, counter-rotating propellers are widely used in underwater vehicles, and counter-rotating motors are also applied. There are great technical difficulties in watertight counter-rotating motors, especially for long-duration work. The long-endurance watertight counter-rotating motor dynamic sealing technology has become the bottleneck technology restricting the range of underwater vehicles. [0003] At present, the sealing technol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/16F16N1/00
Inventor 王力张帆邹青
Owner 710TH RES INST OF CHINA SHIPBUILDING IND CORP
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