Water lubricating stern bearing adhesion-sliding phenomenon testing system
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A test system and tail bearing technology, which is applied in mechanical bearing testing, mechanical component testing, machine/structural component testing, etc., can solve problems such as visual display of non-friction surfaces, and achieve the effect of continuous observation of long strokes
Inactive Publication Date: 2017-12-01
WUHAN UNIV OF TECH
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However, this experimental device cannot visually display the friction surface intuitively, and cannot provide a direct and powerful basis for the existence of stick-slip phenomenon and the distribution of water pockets in water-lubricated rubber tail bearings.
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[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0039] like figure 1 and figure 2 As shown, a water-lubricated stern bearing stick-slip test system includes a driving unit, a loading unit, a water adding unit, a measuring unit and an image unit. The driving unit includes a motor 11, a coaxial transmission assembly and a glass sleeve 5 connected in sequence, The loading unit includes a bracket 3, a balance lever 16 installed on the bracket 3, and weights 17 and bearing test blocks 4 respectively arranged on both sides of the installation point of the balance lever 16. The outer surface of the glass sleeve 5 contacts the working surface of the bearing test block 4 to form a The friction pair and the water adding unit include a water tank 12 connected in sequence (the water tank 12 is located under the friction pair and can hold lubricating water to complete the cycle), a pump and a water spray pipe 1...
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Abstract
The invention relates to a water lubricating stern bearing adhesion-sliding phenomenon testing system. The water lubricating stern bearing adhesion-sliding phenomenon testing system comprises a driving unit, a loading unit, a water filling unit, a measuring unit, and an image unit. The driving unit comprises a motor, a coaxial transmission component, and a glass sleeve. The loading unit comprises a support, a balance lever, a weight, and a bearing test block. The glass sleeve and the bearing test block are contacted with each other to form a friction pair. The water filling unit comprises a water tank, a pump, and a water spraying pipe. The measuring unit comprises a rotation speed torque device, a three-component force transducer, a vibration sensor, and a sound sensor. The image unit comprises a high speed camera, a hard bar mirror, and an adjustable lamp. The water spraying pipe, the high speed camera, and the hard bar mirror are pointed at the friction pair, and the working surface of the bearing test block is provided with a mark point. The visualization test, and the noise, vibration, and friction force recording of the water lubricating stern bearing adhesion-sliding phenomena are realized, and the test and the research of the adhesion-sliding phenomena under conditions of different lubricating waters and different rotation speeds are realized, and therefore the testing system is closer to an actual motion rule of a shaft and the bearing.
Description
technical field [0001] The invention belongs to the technical field of ship propulsion, and in particular relates to a stick-slip phenomenon testing system for a water-lubricated stern bearing. Background technique [0002] The water-lubricated stern bearing is an important part of the propulsion system of a ship. When the ship starts, stops and operates at low speed, the hydrodynamic lubricating film cannot be formed on the surface of the water-lubricated stern bearing contact area, and the stick-slip phenomenon is easily generated, resulting in frictional vibration and noise. Therefore, the research on the stick-slip phenomenon of water-lubricated stern bearing is of great significance to improve the concealment of ships, especially submarines. [0003] Stick-slip, as the basic unit of the friction process, is very important for understanding the interface friction behavior. When one slides on another surface at a very low speed, the friction process will become disconti...
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