A vibration-damping base for shafting bearings used in bulkheads of ships
A bulkhead and bearing technology, applied in the direction of shafts and bearings, bearing components, rigid supports of bearing components, etc., can solve the problems of reduction of longitudinal natural frequency of shafting, little effect of radial vibration, and reduction of longitudinal stiffness of shafting. , to achieve the effect of long service life, small footprint and stable performance
Active Publication Date: 2017-12-22
JIANGSU UNIV OF SCI & TECH
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Problems solved by technology
This structure can reduce the longitudinal stiffness of the shafting, reduce the longitudinal natural frequency of the shafting, stagger the resonance with the propeller, and reduce the transmission of the longitudinal vibration of the shafting, but its overall structure is complex and has little effect on the radial vibration
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[0035] The present invention is described in more detail below in conjunction with accompanying drawing example, further clarifies the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand the present invention Modifications of various equivalent forms of the invention all fall within the scope defined by the appended claims of the present application.
[0036] Such as Figure 1 to Figure 6Shown: a shafting bearing vibration damping base for ship bulkheads, including a shaft 18 and a bulkhead 10 supporting the shaft 18, a pair of bottom-to-bottom arranged truncated cone-shaped tight fittings are sleeved on the shaft 18 sleeve 4, the top of the adapter sleeve 4 is provided with threads, the adapter sleeve 4 is set with a bearing 17 with a tapered inner mounting surface, and th...
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The invention discloses a shaft bearing vibration damping base, which comprises a shaft and a bulkhead supporting the shaft. The inner ring of the bearing is pressed tightly by the tightening nut, the base body is set on the outside of the bearing, there are transparent covers at both ends of the base main body, a dust-proof ring is arranged between the transparent cover and the shaft, and a set is set on the outside of the base main body For frustum-shaped damping cover, the damping cover is fixed on the main body of the base, and the bottom of the damping cover is installed on the bulkhead through a ring flange. The damping cover is composed of a wire mesh block layer and an elastic metal diaphragm layer at intervals multilayer connectors. The invention can be used in the propulsion shafting of ships, it is easy to install, takes up little space, has the dual functions of damping the lateral and radial vibrations of the shafting and sealing the water between cabins, and is suitable for high temperature and oil pollution in the cabins of ships Compared with traditional vibration damping devices such as rubber, it has a long service life and good vibration damping effect.
Description
technical field [0001] The invention relates to a bearing vibration damping base, in particular to a shafting bearing vibration damping base used for ship bulkheads, and belongs to the technical field of vibration damping bearings. Background technique [0002] The vibration of ship shafting bearings is one of the main sources of ship noise excitation and a harmful factor affecting the vitality of ships. Ship shafting bearings play the role of fixing and supporting the shafting in the process of mechanical transmission, and are an important part of mechanical equipment. During the operation of the ship, the shafting is susceptible to axial vibration caused by factors such as propeller pulsating thrust, and radial vibration caused by factors such as centrifugal force caused by unbalanced rotating mass. However, traditional bearings and mounting bases The damping loss factor is small, and it is difficult to consume the vibration energy generated by the shafting, which causes ...
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IPC IPC(8): F16F15/073F16C35/07B63H23/32
CPCB63H23/32F16C35/073F16F15/073
Inventor 温华兵宋震
Owner JIANGSU UNIV OF SCI & TECH