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A kind of propeller dynamometer for cavitation water cylinder

A technology of dynamic instrument and propeller, which is applied in the field of propeller hydrodynamic measurement equipment, can solve problems such as flow field interference, affecting the efficiency of water tank use, and bulky support packages, and achieve the effects of avoiding stress damage, small interference, and small mutual interference

Active Publication Date: 2019-12-17
CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, when the hydrodynamic measurement test of the propeller is carried out in the cavitation water tank, the external dynamic instrument equipment can be used, but there will be a relatively cumbersome support package at the proximal end of the propeller, which will interfere with the flow field. In other performance tests, the external dynamometer needs to be removed, which will affect the efficiency of the water tank

Method used

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  • A kind of propeller dynamometer for cavitation water cylinder
  • A kind of propeller dynamometer for cavitation water cylinder
  • A kind of propeller dynamometer for cavitation water cylinder

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Embodiment Construction

[0042] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0043] figure 1 and figure 2 It is a schematic diagram of the propeller dynamic instrument for the cavitation water cylinder provided by the present invention, combined with reference figure 1 and figure 2 , the dynamometer includes a transmission system 1, a single-arm support frame 2, a double-arm support frame 3, a watertight junction box 4, a holed cylinder section 5, a coupling 6, a sealing ring 7, a slip ring 8, and an input shaft 9 , Thrust bearing set 10, contraction section 11, push torque sensor 12, paddle shaft 13 and end sealing sleeve 14.

[0044] The transmission system 1 is fixed on the barrel through the single-arm support frame 2 and the double-arm support frame 3 .

[0045] Optionally, the transmission system 1 is fixed on the barrel in a Huff form through the single-arm support frame 2 and the double-arm support fram...

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Abstract

The invention discloses a propeller power meter for a cavitation tunnel and relates to the field of a propeller hydrodynamic measuring device. A transmission system of the power meter is fixed on a cylinder body by a single-arm support frame and a double-arm support frame. An input shaft is in a thrust bearing set and is connected to the transmission system through a coupling. The thrust bearing set is connected to an opening cylinder section which is threadingly connected to a shaft sleeve of the transmission system. Two ends of a thrust torque sensor are connected to the input shaft and a paddle shaft, a signal input line of the thrust torque sensor passes through a hollow portion of the input shaft, is transferred through a slip ring, then goes out of the sealing ring and is connected to a signal output line in a watertight junction box. An end of the paddle shaft is supported by a water-lubricated bearing in a sealing sleeve. A contraction section is connected to a thrust bearing set and an end sealing sleeve through threads. The space where the thrust torque sensor is located is watertight and communicates with the atmosphere. The effects of small interference to a flow fieldand convenient disassembly and assembly of the paddle shaft are achieved.

Description

technical field [0001] The invention relates to the field of propeller hydrodynamic measuring equipment, in particular to a propeller dynamic instrument for a cavitation water cylinder. Background technique [0002] The propeller dynamometer is an instrument used to measure the thrust and torque of the propeller. Its purpose is to draw the surveying data into a map, analyze and improve the theoretical design, so as to meet the actual design needs of the propeller. [0003] At present, when the hydrodynamic measurement test of the propeller is carried out in the cavitation water tank, the external dynamic instrument equipment can be used, but there will be a relatively cumbersome support package at the proximal end of the propeller, which will interfere with the flow field. For other performance tests, the external dynamometer needs to be removed, which will affect the efficiency of the water tank. Contents of the invention [0004] Aiming at the above problems and technic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M10/00G01L5/00G01L5/12
CPCG01L5/0038G01L5/0042G01L5/12G01M10/00
Inventor 芮伟张国平陆林章陆赟
Owner CHINA SHIP SCIENTIFIC RESEARCH CENTER (THE 702 INSTITUTE OF CHINA SHIPBUILDING INDUSTRY CORPORATION)
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