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A method of propeller cone hole matching based on non-contact measurement

A non-contact, propeller technology, applied in measurement devices, image analysis, instruments, etc., can solve the problems of long dock occupation, long preparation period, high cost, and achieve strong equipment versatility, low cost, and saving dock costs. Effect

Active Publication Date: 2019-08-20
镇江中船瓦锡兰螺旋桨有限公司
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Problems solved by technology

[0006] Purpose of the invention: Aiming at the deficiencies of the above-mentioned prior art, a method for propeller cone hole matching based on non-contact measurement is proposed to solve the problems of long dock time, long pre-preparation period, high cost and high efficiency for the propeller cone hole matching operation. low problem

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  • A method of propeller cone hole matching based on non-contact measurement

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Embodiment Construction

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] A method for matching propeller cone holes based on non-contact measurement, specifically comprising the following steps:

[0028] Step 1: If figure 1 As shown, the taper hole of the propeller has a 0.2-0.3 mm stroke allowance during machining, and the inner wall is provided with 3-4 linear oil grooves 1 and 20-30 annular oil grooves 2. An elevator is erected on a horizontal plane, and the propeller cone hole is placed on the horizontal plane, with either end of the hole facing upwards, and the construction personnel use the elevator to lift and operate in the propeller cone hole. Clean the linear oil tank 1 and the annular oil tank 2, and mark several azimuth marks 3 equidistantly on the surface of the large end of the upward facing hole, and each linear oil tank corresponds to a position mark, and some azimuth marks are not ...

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Abstract

The invention discloses a non-contact measurement-based screw propeller taper hole fitting method. A screw propeller taper hole is formed in a horizontal plane; a hole opening in any end is upward; alinear oil groove and an annular oil groove in the inner wall are cleaned; and a position identifier is marked on the large end surface of the upward hole opening. A three-dimensional reference modelof the screw propeller taper hole is built or imported in three-dimensional processing software; a threshold range is defined; and a three-dimensional reference chromatogram is generated. A three-dimensional scanner is used for performing scanning detection; scanning data is imported to the three-dimensional processing software; a three-dimensional detection model is built; the same threshold range as the three-dimensional reference model is defined; and a three-dimensional detection chromatogram is generated. According to the three-dimensional reference chromatogram and the three-dimensionaldetection chromatogram, a three-dimensional deviation chromatogram is generated and output. In combination with the position identifier, a fitting part is located; and the fitting operation is performed. After the fitting is finished, the scanning detection and the fitting are carried out again, until the fitting precision requirements are met. Compared with the prior art, the fitting precision and efficiency are improved.

Description

technical field [0001] The invention relates to propeller manufacturing technology, in particular to a propeller cone hole matching method. Background technique [0002] Propeller taper hole matching is to process rough castings into the required size of the propeller taper hole, and then check the contact between the processed surface of the propeller taper hole and the stern shaft; if the contact area is less than 75%, and the contact points per square centimeter are greater than 3 points of contact , then use tools to grind, test and grind repeatedly until the requirements are met, the purpose is to make the propeller cone hole and the contact surface of the stern shaft better match and increase the static friction. There are two existing propeller cone hole matching processes: one method is carried out in a shipyard, and the other method is carried out in a processing plant. [0003] Match the propeller cone hole in the dock: the propeller cone hole is lying in the dock...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/62G06T7/70G06T7/90G01B21/20
Inventor 胡传林钱隆
Owner 镇江中船瓦锡兰螺旋桨有限公司
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