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Water lubrication bearing dynamic characteristic parameter test device

A technology of water-lubricated bearings and dynamic characteristics, applied in the direction of mechanical bearing testing, etc., can solve problems such as stiffness and damping test devices are rare, affect shafting propulsion efficiency, operation reliability and operation safety, etc.

Active Publication Date: 2017-08-22
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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Problems solved by technology

[0006] Judging from the published information, there are many stiffness testing devices for rolling bearings and hydrostatic bearings, but relatively few testing devices for stiffness and damping of more complex water-lubricated bearings
In view of the large number of applications of water-lubricated shafting in the field of ships, its radial stiffness and damping are two important parameters in the radial support characteristics of bearings, which will not only affect its own stress, strain, friction and wear characteristics, but also It has a huge impact on the vibration of the entire shafting system and even the vibration of the stern structure of the hull, which in turn affects the propulsion efficiency, operational reliability and operational safety of the shafting system

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  • Water lubrication bearing dynamic characteristic parameter test device

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Embodiment Construction

[0020] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0021] Before the test, the test device needs to be installed in place first, the specific installation method is as follows: figure 1 As shown, the connecting shaft section 11 is penetrated from one end of the water tank 9, and at the same time, the water lubricated bearing 10 is hoisted to ensure that it is concentric with the connecting shaft section 11, so that the water lubricated bearing 10 to be tested is set on the corresponding connecting shaft section 11. position, then pass the coupling shaft section 11 from the other end of the water tank, and install the two ends of the coupling shaft section 11 on the roller bearings and supports 3 (3.1, 3.2) on the outside of the water tank 9; The static force loading device 5 on the top controls and adjusts its position and attitude; a dynamic sealing device 4 (including dynamic sealing dev...

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Abstract

The invention relates to a water lubrication bearing dynamic characteristic parameter test device. The device is formed by a driving device, a loading and measuring device, an auxiliary device and a water lubrication bearing, the driving device mainly comprises a driving motor, a high-elastic coupling and a coupling shaft segment, the loading and measuring device mainly comprises a static force loading device, a dynamic force loading device and a dynamic force and response measurement device, the dynamic force and response measurement device can be used for measuring a vibration acceleration and a dynamic force, and the auxiliary device mainly comprises a roller bearing and support, a dynamic sealing device, a loading device support frame, and a water tank etc. According to the device, under the loading effect of the static force and the dynamic force, direct measurement of the radial rigidity and damping of the water lubrication bearing is realized, the structure is simple, measurement data is reliable, measuring results can provide reliable input parameters for calculation and assessment of the shafting vibration characteristics employing the water lubrication bearing and provide experiment bases for the design of the water lubrication bearing.

Description

technical field [0001] The invention relates to the field of testing dynamic characteristic parameters of water-lubricated bearings, in particular to a testing device for dynamic characteristic parameters of radial stiffness and damping of water-lubricated bearings. Background technique [0002] Sliding bearings are widely used in modern industrial machinery because of their simple structure and good dynamic performance under high-speed and heavy-load conditions. In the field of ships, due to the particularity of the working environment of the propulsion shafting, water-lubricated bearings using seawater as the direct lubrication medium have been widely used. [0003] People have carried out a lot of research on the lubrication mechanism and characteristics of water-lubricated bearings, bearing structural parameters, material formulations, water film pressure and friction characteristics. For example, Huazhong University of Science and Technology (Development of Comprehensi...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04
Inventor 段勇邱跃统熊晨曦周凌波
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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