Stern bearing pouring damping device and its reparation method

A damping device and bearing technology, which is applied in the direction of transmission, bearing elements, shafts and bearings of synchronous propulsion components, can solve the problems of difficult maintenance and disassembly, inability to apply stern bearings, and high requirements for pouring environment, so as to achieve good vibration isolation The effect of passing

Active Publication Date: 2018-01-26
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the defects existing in the prior art, one of the purposes of the present invention is to provide a casting damping device for the stern bearing, which can solve the problem that the existing stern bearing self-alignment device cannot apply all the stern bearings, resulting in Insufficient vibration isolation measures for stern bearings; solve the problems of high requirements on pouring environment, difficult maintenance and disassembly, and failure to achieve effective vibration isolation design existing in the direct pouring of epoxy resin between the existing stern bearings and shaft hubs

Method used

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  • Stern bearing pouring damping device and its reparation method
  • Stern bearing pouring damping device and its reparation method
  • Stern bearing pouring damping device and its reparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 1 As shown, a stern bearing casting damping device includes an inner bushing 1, a casting body 2 and an outer bushing 3.

[0043] Among them, the inner liner 1 and the outer liner 3 are both cylindrical with a flange at one end, the outer liner 3 is sleeved on the inner liner 1, and the casting body 2 is cured by casting the inner liner 1 and the outer liner Set between 3.

[0044] After the casting body 2 is solidified, in the damping device, the flanges of the inner liner 1, the casting body 2 and the outer liner 3 are respectively evenly distributed along the circumference with a circle of through holes and a circle of threaded holes.

[0045] image 3 For the general layout diagram of the damping device in the hull 11, the figure shows the specific positions of the propeller 9, the stern bearing 8, the damping device, the stern bearing hub 4, and the stern shaft 10 in the hull 11. It can be seen from the figure that the damping device is installed between ...

Embodiment 2

[0066] Such as figure 1 As shown, a stern bearing casting damping device, the inner bushing 1 has a thickness of 36mm, the outer bushing 3 has a thickness of 32mm, and the casting body 2 has a thickness of 18mm. The casting body material is a German EPOCAST 36 cast epoxy gasket. The performance indicators are:

[0067] Tensile strength≥49.4MPa, compressive strength≥164MPa, cantilever beam unnotched impact strength≥2.0kJ / m 2 , Heat distortion temperature≥90℃, Barcol hardness≥55;

[0068] Elastic modulus (E) = 5.61GPa; density (ρ) = 1670kg / m 3 ; Poisson's ratio (μ) = 0.337;

[0069] The remaining parts are the same as those in the stern bearing casting damping device described in Example 1.

[0070] The steps of the method for preparing the stern bearing casting damping device in this embodiment are as follows:

[0071] (1) Assembly and positioning: same as step (1) of embodiment 1.

[0072] (2) The first sealing treatment: same as step (2) of Example 1.

[0073] (3) Preparation of pouring...

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Abstract

The invention relates to a stern bearing pouring damping device and its reparation method, and belongs to the technical field of a ship damping device. An outer bush in the damping device sleeves to an inner bush, one end is provided with a flange; a pouring body is poured and solidified between the inner and outer bushes; the damping device is installed between a stern bearing propeller boss anda stern bearing; the damping device is connected with the stern bearing propeller boss and the stern bearing through a bolt; the materials of the inner and outer bushes are consistent with that of thestern bearing propeller boss; the pouring body material is an epoxy pouring material; after curing, the tensile strength is not less than 34 MPa, and compression strength is not less than 100 MPa; the notch-free impact intensity of a cantilever beam is not less than 1.7kJ/m2, the thermal deformation temperature is not less than 70 DEG C, and the Barcol hardness is not less than 35. The damping device is easy to dismount, overhaul and replace; the force transmissibility isolating efficiency is more than 50%. The transmission of vibration from the stern bearing to the outside of a ship body canbe effectively controlled, the low-noise shipping is realized; the stern bearing pouring damping device can be poured and processed in a factory and not influenced by environment temperature.

Description

Technical field [0001] The invention relates to a stern bearing pouring damping device and a preparation method. The device can effectively control the transmission of vibration through the stern bearing to the outside of the hull on the basis of ensuring that the support strength is satisfied, thereby realizing low-noise navigation of the ship, belonging to the ship Technical field of damping devices. Background technique [0002] With the development of ship technology, the requirements for sailing comfort and concealment are getting higher and higher. According to the requirements of alignment and load-bearing, a rigid connection is adopted between the ship's shafting equipment and the hull base, and a shock absorber cannot be installed, so there is a lack of effective vibration damping and vibration isolation measures. Large-scale ship propellers are of high mass, and the stern bearing load distribution is extremely uneven. At the same time, it is affected by various factors...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H23/32F16C33/00
Inventor 王娟王隽舒疏张冰雪田佳彬王刚伟
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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