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A static balance test device and method for an adjustable pitch propeller shaft

A propeller shaft and test device technology, which is applied in static/dynamic balance test, measuring device, machine/structural component test, etc., can solve problems such as inability to guarantee the accuracy of test results, increase the force arm and improve accuracy , the effect of reducing the force

Active Publication Date: 2019-09-10
WUHAN MARINE MACHINERY PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing technology cannot guarantee the accuracy of the detection results, the embodiment of the present invention provides a static balance test device and method for an adjustable pitch propeller shaft

Method used

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  • A static balance test device and method for an adjustable pitch propeller shaft
  • A static balance test device and method for an adjustable pitch propeller shaft
  • A static balance test device and method for an adjustable pitch propeller shaft

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Embodiment 1

[0058] An embodiment of the present invention provides a static balance test device for an adjustable pitch propeller shaft, see Figure 1a and Figure 1b , the static balance test device includes two supporting frames 1 and a mounting assembly 2 that are relatively arranged on a level ground. Axis 10 outside. figure 2 For a schematic diagram of the structure of the mounted component, see figure 2 , the mounting assembly includes two half cylinders 21 and two hanging rods 22, the two half cylinders 21 are detachably connected, the two hanging rods 22 correspond to the two half cylinders 21 one by one, and one end of each hanging rod 22 is fixed on The center of the outer circumference of the semi-cylinder 21 corresponding to the hanging rod 22 , and the other end of the hanging rod 22 extends away from the semi-cylinder 21 corresponding to the hanging rod 22 .

[0059] In the embodiment of the present invention, by adding a mounting assembly set outside the shaft of the ad...

Embodiment 2

[0069] The embodiment of the present invention provides a static balance test method for an adjustable pitch propeller shaft, see Figure 4 , static balance test methods include:

[0070] Step 401: Place the shaft of the adjustable pitch propeller on two opposite supporting frames.

[0071] Step 402: Set the two semi-cylinders of the mounting assembly on the shaft of the adjustable pitch propeller, and the axes of the two hanging rods of the mounting assembly are parallel to the horizontal ground.

[0072] In this embodiment, the two half-cylinders are detachably connected, and the two hanging rods correspond to the two half-cylinders one by one. One end of each hanging rod is fixed at the center of the outer circumference of the half-cylinder corresponding to the hanging rod. The other end extends away from the corresponding half cylinder of the hanging rod.

[0073] Optionally, this step 402 may include:

[0074] After the adjustable-pitch propeller shaft stops rotating o...

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Abstract

The invention discloses a static balance test device and method for a controllable pitch propeller shaft, and belongs to the field of propulsion technologies for ships. The static balance test devicecomprises two support frames used for bearing the controllable pitch propeller shaft, wherein the two support frames are oppositely arranged on the horizontal ground. The static balance test device ischaracterized by further comprising a mounting assembly used for being arranged outside the controllable pitch propeller shaft in a sleeved manner, wherein the mounting assembly comprises two semicircular cylinders and two hanging rods, the two semicircular cylinders are detachably connected, the two hanging rods respectively correspond to the two semicircular cylinders, one end of each hanging rod is fixed at the center of the external circumference of the semicircular cylinder corresponding to the hanging rod, and the other end of the hanging rod extends towards a direction away from the semicircular cylinder corresponding to the hanging rod. According to the invention, the mounting assembly is additionally arranged, the hanging rods can enable a connecting rope to be away from the controllable pitch propeller shaft, so that the accuracy of a detection result is improved, and the operation is simple and convenient.

Description

technical field [0001] The invention relates to the technical field of marine propulsion, in particular to a static balance test device and method for an adjustable pitch propeller shaft. Background technique [0002] A controllable pitch propeller (CPP for short) is a propeller that rotates the blades through the operating mechanism in the propeller hub to adjust the pitch to adapt to various working conditions. The adjustable pitch propeller shaft is a hollow shaft, limited by manufacturing precision, the adjustable pitch propeller shaft will generate eccentric moment during the rotation of the adjustable pitch propeller shaft, which will cause the adjustable pitch propeller shaft to vibrate. If the vibration exceeds the design specifications, it will affect the safe operation of the adjustable pitch propeller, so it is necessary to detect the eccentric moment of the adjustable pitch propeller shaft. [0003] And the detection of the eccentric moment of the adjustable pit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M1/12
Inventor 胡哲陈翔王帅刘端
Owner WUHAN MARINE MACHINERY PLANT