CN110530259B - Pitch measuring method for controllable pitch propeller - Google Patents

Pitch measuring method for controllable pitch propeller Download PDF

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CN110530259B
CN110530259B CN201910735978.5A CN201910735978A CN110530259B CN 110530259 B CN110530259 B CN 110530259B CN 201910735978 A CN201910735978 A CN 201910735978A CN 110530259 B CN110530259 B CN 110530259B
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pitch
propeller
controllable
coordinate system
reference point
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CN110530259A (en
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丁举
刘正浩
王建强
叶正华
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708th Research Institute of CSIC
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708th Research Institute of CSIC
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes

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  • General Physics & Mathematics (AREA)
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  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

The invention discloses a pitch measuring method for a controllable pitch propeller, which comprises the following steps: step 1, adjusting a pitch-adjusting propeller to a set pitch position; step 2, scanning all positioning punctuations on the controllable pitch propeller by adopting a scanner and sending a scanning result to a computing device; step 3, the computing equipment forms a first coordinate system according to the scanning result; step 4, in a first coordinate system, respectively selecting a first reference point and a second reference point on each blade 1 of the controllable-pitch propeller, and calculating to obtain actual pitch values of the first reference point and the second reference point; and 5, enabling the controllable pitch propeller to be positioned at other pitch positions except the set pitch position, then returning to the step 2, and outputting the actual pitch values of all the first reference points and all the second reference points. The beneficial effects of the above technical scheme are that: the method can obtain the real pitch value of the propeller, and can be widely applied to the working situations that the propeller is basically vertically arranged and the shaft is basically horizontally arranged.

Description

Pitch measuring method for controllable pitch propeller
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a pitch measuring method for a controllable pitch propeller.
Background
The propeller is the most widely used propeller form on various ships at present, and is mainly divided into a fixed-pitch propeller and a controllable-pitch propeller. The pitch of the fixed-pitch propeller can not be adjusted, and the ship can only work at the designed pitch in the operation process and can not adapt to the requirement of multiple working conditions of the ship. The pitch of the pitch-adjusting propeller can be adjusted, various pitches can be adopted to work in the operation process of the ship, the multi-working-condition requirement of the ship can be met, and the main engine can generate maximum power at various rotating speeds. The controllable pitch propeller comprises a rotatable blade, a propeller hub, a rotating blade mechanism arranged in the propeller hub and the like. When the distance adjusting mechanism acts, the paddle can be driven to rotate, so that the pitch of the propeller is changed. In a controllable pitch propeller integration workshop, finished blades need to be assembled on a propeller hub, and various pitch positions are assembled and debugged, but the assembly precision of the pitch of the controllable pitch blades is obtained by analysis all the time, and direct measurement data are lacked. The precision of the pitch of each blade of the controllable pitch propeller is an important index in the manufacturing process, and the hydrodynamic performance, the cavitation performance and the noise performance of the propeller are directly influenced. In actual ship pilot test, the situation that the pitch setting of the controllable pitch propeller is inconsistent with the design forecast result is sometimes found, so that the difference between the pitch indicated value and the real pitch value is suspected.
The traditional measuring method for measuring the pitch by adopting instruments such as a pitch gauge requires that the blades must be horizontally placed, and cannot adapt to the bench test state of the propeller or even the installation state of a real ship. The propeller is horizontally arranged, the axial direction of the propeller is consistent with the vertical direction, and a pitch gauge or a three-coordinate measuring instrument is adopted to measure the pitch value of the blade surface or the blade back. However, the assembly is advantageous in that the pitch control propeller in the debugging process is vertically arranged, the pitch control propeller (or the distance control propeller) arranged at the stern is also vertically arranged, the axial direction of the propeller is basically consistent with the horizontal direction, and the pitch value of the blade surface or the blade back is difficult to measure by adopting a pitch gauge or a three-coordinate measuring instrument.
Disclosure of Invention
The embodiment of the invention aims to overcome the difficulties and provides a method for measuring the pitch of a pitch propeller, which is characterized in that the pitch propeller is adjusted to be in a preset measurement mode, positioning punctuations are pasted in a plurality of preset positions of the pitch propeller in advance, a plurality of pitch positions are also arranged on a propeller shaft of the pitch propeller, wherein the pitch positions comprise a set pitch position, and the set pitch position corresponds to a set pitch characteristic radius;
further comprising:
step 1, adjusting the controllable pitch propeller to the set pitch position;
step 2, scanning all positioning punctuations on the controllable pitch propeller by adopting a scanner, and sending a scanning result to a computing device;
step 3, the computing equipment forms a first coordinate system according to the scanning result, the original point of the first coordinate system is the central point of the oil cylinder end surface of the pitch propeller, the X-Y plane is the oil cylinder end surface, the X axis and the Y axis respectively point to the blades of the pitch propeller, and the Z axis is perpendicular to the oil cylinder end surface and points to the propeller axis of the pitch propeller;
step 4, in the first coordinate system, with the set pitch characteristic radius as a reference and the origin of the first coordinate system as a circle center, respectively selecting a first reference point and a second reference point on a leading edge and a trailing edge of each blade of the controllable pitch propeller, and calculating to obtain actual pitch values of the first reference point and the second reference point;
and 5, enabling the controllable pitch propeller to be positioned at other pitch positions except the set pitch position, then returning to the step 2, and outputting the actual pitch values of all the first reference points and all the second reference points after all the pitch positions in the propeller shaft are measured.
Preferably, the included angle between the axial direction and the horizontal direction of the controllable pitch propeller in the measuring mode is less than or equal to +/-15 degrees.
Preferably, a plurality of cylindrical tools are arranged on an oil cylinder of the pitch propeller, and the arrangement positions of the cylindrical tools correspond to the blades of the pitch propeller one by one; the positioning punctuation is made of glass beads and is adhered to the oil cylinder, the propeller hub, the propeller blades and each cylindrical tool of the controllable pitch propeller.
Preferably, the distance between the positioning points is less than or equal to 100 mm, and encryption is performed at a place where the curvature change of the controllable pitch propeller is dense.
Preferably, the range of the location punctuation pasting is from the propeller hub to the set pitch characteristic radius.
Preferably, in the first coordinate system, an axis of a cylindrical end surface of the oil cylinder of the pitch propeller is set as a Z axis of the first coordinate system, a cylindrical end surface of the oil cylinder of the pitch propeller is set as an X-Y plane of the first coordinate system, a connection line between the cylindrical tool and the origin is set as a Y axis of the first coordinate system, and the X axis of the first coordinate system is perpendicular to the Y axis of the first coordinate system.
Preferably, the first reference point and the second reference point are selected in the first coordinate system according to the following condition:
the distance of the first reference point and the second reference point to the origin of the first coordinate system is the value of the set pitch characteristic radius, and,
the first reference point and the second reference point satisfy the following formula:
θ1+θ2＝θ
wherein the content of the first and second substances,
θ1for representing a spatial angle between the first reference point and the Y-axis of the first coordinate system,
θ2for representing a spatial angle between the second reference point and the Y-axis of the first coordinate system,
and theta is the circumferential maximum included angle corresponding to the chord length value of the blade when the controllable-pitch propeller is at the set pitch position.
Preferably, the actual pitch values Δ P of the first reference point and the second reference point are calculated1And phi1Wherein, Δ P1＝360/(θ1+θ2)·(ZA1-ZB1)，Φ1＝arctan(ΔP1/(2πr1))；
r1＝0.7·R1；
Wherein r is1For representing the set pitch characteristic radius;
R1the maximum set pitch radius is used for representing the maximum set pitch radius of the controllable pitch propeller at the set pitch position;
ZA1for representing a distance of the first reference point from a Z-axis of the first coordinate system;
ZB1for representing the distance of the second reference point from the Z-axis of the first coordinate system.
The beneficial effects of the above technical scheme are that: the propeller is in a state of propeller shaft joint adjustment or distance adjustment experiment, the real pitch value of the propeller is obtained, and the propeller pitch adjusting device can be widely applied to the working scene that the propeller is basically vertically placed.
Drawings
FIG. 1 is a schematic diagram of an apparatus for performing laser scanning according to a preferred embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating laser scanning according to a preferred embodiment of the present invention;
FIG. 3 is a schematic view of a cylindrical tooling in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of a selected reference point under a set pitch in accordance with a preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of the reference points for selecting other pitch positions according to the preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
In a preferred embodiment of the present invention, a method for measuring a pitch of a controllable pitch propeller is provided, where a schematic diagram of a device for performing laser scanning is shown in fig. 1, and specific steps are shown in fig. 2, and the method includes:
adjusting the pitch propeller to be in a preset measuring mode, sticking positioning punctuations 5 in a plurality of preset positions of the pitch propeller in advance, and setting a plurality of pitch positions on a propeller shaft 4 of the pitch propeller, wherein the pitch positions comprise a set pitch position which corresponds to a set pitch characteristic radius;
further comprising:
step 1, adjusting a pitch-adjusting propeller to a set pitch position;
step 2, scanning all positioning punctuations 5 on the controllable pitch propeller by adopting a scanner 6, and sending a scanning result to a computing device 7;
step 3, the computing equipment 7 forms a first coordinate system according to the scanning result, the original point of the first coordinate system is the central point of the end surface of the oil cylinder 3 of the controllable-pitch propeller, the X-Y plane is the end surface of the oil cylinder 3, the X axis and the Y axis respectively point to the radius direction of the blades 1 of the controllable-pitch propeller, and the Z axis is perpendicular to the end surface of the oil cylinder 3 and points to the direction of the blade shaft 4 of the controllable-pitch propeller;
step 4, in a first coordinate system, with the set pitch characteristic radius as a reference and the origin of the first coordinate system as a circle center, respectively selecting a first reference point and a second reference point on a leading edge and a trailing edge of each blade 1 of the controllable pitch propeller, and calculating to obtain actual pitch values of the first reference point and the second reference point;
and 5, enabling the controllable pitch propeller to be positioned at other pitch positions except the set pitch position, then returning to the step 2, and outputting the actual pitch values of all the first reference points and all the second reference points until all the pitch positions in the propeller shaft 4 are measured.
Specifically, the set pitch position of the pitch propeller is defined when the pitch propeller is manufactured, assembled and delivered from a factory, that is, the pitch propeller is adjusted, and the pitch propeller can reach the set pitch position by correspondingly overlapping the CL line of the flange of the blade 1 and the K line of the hub 2. In addition, the controllable pitch propeller can be adjusted to other pitch positions such as a zero position, a reverse gear stop position and the like. The maximum radius R of the corresponding propeller is different under different pitch positions of the controllable pitch propeller, and the characteristic radius R corresponding to the controllable pitch propeller is different under different pitch positions because the characteristic radius R and the maximum radius R of the propeller have a linear relation R of 0.7R.
In order to obtain an actual pitch value, the pitch-adjusting propeller is adjusted to a set pitch position to obtain the maximum radius R of the set propeller1Then obtaining the characteristic radius r of the set thread pitch by numerical calculation1Using a fixed set pitch characteristic radius r1The value is to scan and pick up points of the controllable pitch propellers at different pitch positions, namely the radial distance from a reference point to the central point of the end surface of the oil cylinder of the controllable pitch propeller is always the characteristic radius r of the set pitch1And calculating to obtain the actual pitch value of the controllable-pitch propeller.
Wherein is obtainingSetting a pitch characteristic radius value r1In the process, the maximum radius R of the set propeller can be conveniently measured by using a pitch measuring instrument after the adjustable propeller is horizontally arranged1And because of the structural design of the propeller, the measurement of the maximum radius of the propeller is very simple, the result is very accurate, and the maximum radius R of the propeller is set by recycling1And setting a characteristic pitch radius r1Linear relation r of1＝0.7·R1And obtaining the characteristic radius of the set thread pitch. In the preferred embodiment of the invention, the included angle between the axial direction and the horizontal direction of the controllable pitch propeller in the measuring mode is less than or equal to +/-15 degrees.
Specifically, errors occur in the manufactured pitch adjusting propeller due to process manufacturing and part assembly, so that the pitch of the actually manufactured pitch adjusting propeller needs to be measured, the traditional measuring method enables the pitch adjusting propeller to be horizontally placed, the pitch control propellers at the stern are all in a vertical state in practical operation, so that the numerical value of the pitch control propellers in practical application cannot be measured, the invention designs the pitch control propeller pitch measuring method, the pitch control propellers are arranged in a preset measuring mode, namely, the included angle between the axial direction and the horizontal direction of the controllable pitch propeller is usually within the range of +/-15 degrees, the controllable pitch propeller in the measurement mode is widely suitable for the bench test scene of the propeller and the application scene of a real ship, can better meet the actual requirement, in the measuring mode, the state of the real pitch of the controllable pitch propeller can be obtained through the propeller shaft joint adjustment or the controllable pitch experiment.
In the preferred embodiment of the invention, a plurality of cylindrical tools 8 are arranged on the oil cylinder 3 of the pitch propeller, and the arrangement positions of the cylindrical tools 8 correspond to the blades 1 of the pitch propeller one by one; the positioning punctuation 5 is made of glass beads and is stuck on the oil cylinder 3, the propeller hub 2, the propeller blades 1 and each cylindrical tool 8 of the controllable pitch propeller.
Specifically, as shown in fig. 3, the cylindrical tool 8 is located at a bolt hole of the oil cylinder 3, and an axis of the cylindrical tool is perpendicular to an end surface of the oil cylinder 3.
In the preferred embodiment of the invention, the distance between the positioning punctuations 5 is less than or equal to 100 mm and the encryption is carried out where the variation of the curvature of the pitch propeller is dense.
Specifically, the positioning mark 5 is installed by using the above-mentioned limiting method, because when the scanner 6 scans the glass bead positioning mark 5, the scanner 6 can simultaneously identify three or more continuous positioning marks 5, and the scanning data is valid at this time.
In the preferred embodiment of the present invention, the range of the pasting of the positioning mark point 5 is from the hub 2 to the set characteristic radius of the pitch.
In the preferred embodiment of the present invention, in the first coordinate system, the axis of the cylindrical end surface of the cylinder 3 of the pitch propeller is set as the Z axis of the first coordinate system, the cylindrical end surface of the cylinder 3 of the pitch propeller is set as the X-Y plane of the first coordinate system, the connecting line of the cylindrical tool and the origin is set as the Y axis of the first coordinate system, and the X axis of the first coordinate system is perpendicular to the Y axis of the first coordinate system.
In a preferred embodiment of the present invention, the first reference point and the second reference point are selected in the first coordinate system according to the following condition:
the distances from the first reference point and the second reference point to the origin of the first coordinate system are both values that set the pitch characteristic radius, and,
the first reference point and the second reference point satisfy the following formula:
θ1+θ2＝θ
wherein the content of the first and second substances,
θ1for representing a spatial angle between the first reference point and the Y-axis of the first coordinate system,
θ2for representing a spatial angle between the second reference point and the Y-axis of the first coordinate system,
and selecting theta according to the circumferential maximum included angle corresponding to the chord length value of the blade at the characteristic radius.
In a preferred embodiment of the invention, the actual pitch value Δ P of the first reference point and the second reference point is calculated1And phi1Wherein, in the step (A),
ΔP1＝360/(θ1+θ2)·(ZA1-ZB1)，Φ1＝arctan(ΔP1/(2πr1))；
r1＝0.7·R1；
wherein r is1For representing a set pitch characteristic radius;
R1the maximum radius of the set propeller is used for representing the maximum radius of the controllable pitch propeller at the set pitch position;
ZA1for representing the distance of the first reference point from the Z-axis of the first coordinate system;
ZB1for indicating the distance of the second reference point from the Z-axis of the first coordinate system.
Specifically, a first coordinate system can be established to obtain spatial information of the positioning mark point 5 on the propeller by analyzing the position of the glass bead obtained by scanning, and in order to more conveniently limit the spatial position of the selected reference point in the first coordinate system, the first coordinate system can be subjected to spatial conversion to convert the spatial coordinate system into a cylindrical coordinate system, wherein the cylindrical coordinate system is established by utilizing the transformation of a spatial rectangular coordinate and the cylindrical coordinate system, namely the Z axis of the cylindrical coordinate system is coincident with the Z axis of the first coordinate system, and the X-Y plane of the first coordinate system is set as the polar coordinate of the cylindrical coordinate system
Figure BDA0002162175500000071
Plane, polar coordinates of the first coordinate system
Figure BDA0002162175500000072
P in the plane is the radial distance of the spatial point in the cylindrical coordinate system from the Z-axis,
Figure BDA0002162175500000073
is the included angle between the connecting line of the space point and the Z axis in the cylindrical coordinate system and the X axis of the first space rectangular coordinate system diameter.
At this time, as shown in fig. 4, a first reference point and a second reference point are selected from a leading edge and a trailing edge on each blade of the controllable pitch propeller, wherein the leading edge is on one side of the blade close to the turning direction of the propeller, and the trailing edge is on the other side of the blade, and then the first reference point is marked as a1(r1,90-θ1,ZA1) And the second reference point is marked as B1(r2,90+θ2,ZB1) The actual pitch value delta P between the first reference point and the second reference point can be calculated1And phi1：
ΔP1＝360/(θ1+θ2)·(ZA1-ZB1)，Φ1＝arctan(ΔP1/(2πr1))
Wherein Δ P1Is the value of the pitch, phi1Is the pitch angle.
Furthermore, the first reference point and the second reference point have theoretical factory-set pitch values when the propeller is at the preset pitch position, that is, in the ideal case of factory setting, the spatial position of the first reference point is represented as a01(r1,90-θ1,Z01) The spatial position of the second reference point is denoted B01(r2,90+θ2,Z02) The theoretical pitch value delta P can be directly obtained through the factory setting of the propeller01And phi01：
ΔP01＝360/(θ1+θ2)·(Z02-Z01)，Φ01＝arctan(ΔP01/(2πr1))
By calculating the deviation value between the actual pitch value and the theoretical pitch value and deducting the influence of the pitch processing deviation of the blade 1, the pitch adjusting precision including numerical values such as the assembling precision of the pitch adjusting blade 1, the pitch control precision and the indicating precision of the pitch scale plate in the designed pitch state can be evaluated. Because the blade 1 is a rigid body, the distance adjusting precision delta phi of the pitch angle1I.e. Δ Φ1＝Φ1-Φ01This may be equivalent to the pitch angle adjustment accuracy of the entire blade 1.
Specifically, in step 5, the controllable pitch propeller is adjusted to a pitch position under another pitch position except the set pitch position, such as a zero position and a reverse stop position, as shown in fig. 5, the point taking requirement and the calculation process of the selected first reference point and the second reference point are the same as those under the condition of the set pitch position, except that the distance between the first reference point and the Z axis is set to be ZA2The distance between the second reference point and the Z axis is ZB2Different actual pitch values Δ P are calculated2And phi2：
ΔP2＝360/(θ1+θ2)·(ZA2-ZB2)，Φ2＝arctan(ΔP2/(2πr1))
And, the amount of change Δ Z in the Z-axis direction is calculated by calculating the first reference point at the set pitch position and the first reference point at the other pitch positionsASetting the amount of change Δ Z in the Z-axis direction of the second reference point at the pitch position and the second reference points at the other pitch positionsBThe pitch value and the change of the pitch angle of the propeller in this state can also be calculated, and the accuracy of the pitch adjustment at this pitch position can be evaluated.
By the method, the overall precision of the controllable-pitch propeller in the controllable-pitch process can be evaluated, and the overall precision comprises the assembly precision of the controllable-pitch propeller, the pitch control precision, the indication precision of the pitch scale plate and the like. The pitch state of the propeller installed on a real ship can be accurately evaluated.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims (8)

1. A method for measuring the pitch of a pitch propeller is characterized in that the pitch propeller is adjusted to be in a preset measurement mode, positioning mark points are pasted in advance at a plurality of preset positions of the pitch propeller, a plurality of pitch positions are further arranged on a propeller shaft of the pitch propeller, wherein the pitch positions include a set pitch position, the set pitch position corresponds to a set pitch characteristic radius, and a plurality of cylindrical tools are arranged on an oil cylinder of the pitch propeller;
further comprising:
step 1, adjusting the controllable pitch propeller to the set pitch position;
step 2, scanning all positioning punctuations on the controllable pitch propeller by adopting a scanner, and sending a scanning result to a computing device;
step 3, the computing equipment forms a first coordinate system according to the scanning result, the original point of the first coordinate system is the central point of the oil cylinder end surface of the controllable-pitch propeller, the X-Y plane is the oil cylinder end surface, the X axis and the Y axis respectively point to the radial direction of the blades of the controllable-pitch propeller, and the Z axis is perpendicular to the oil cylinder end surface and points to the direction of the blade axis of the controllable-pitch propeller;
step 4, in the first coordinate system, with the set pitch characteristic radius as a reference and the origin of the first coordinate system as a circle center, respectively selecting a first reference point and a second reference point on a leading edge and a trailing edge of each blade of the controllable pitch propeller, and calculating to obtain actual pitch values of the first reference point and the second reference point;
and 5, enabling the controllable pitch propeller to be positioned at other pitch positions except the set pitch position, then returning to the step 2, and outputting the actual pitch values of all the first reference points and all the second reference points after all the pitch positions in the propeller shaft are measured.
2. A method of measuring the pitch of a controllable pitch propeller as claimed in claim 1, wherein the angle between the axial direction and the horizontal direction of the controllable pitch propeller in said measuring mode is less than or equal to ± 15 °.
3. The method for measuring the pitch of the controllable pitch propeller according to claim 1, wherein the cylindrical tool is arranged in a one-to-one correspondence with blades of the controllable pitch propeller; the positioning punctuation is made of glass beads and is adhered to the oil cylinder, the propeller hub, the propeller blades and each cylindrical tool of the controllable pitch propeller.
4. A method as claimed in claim 3, wherein the distance between the alignment points is less than or equal to 100 mm and the encryption is performed where the variation in curvature of the pitch propeller is dense.
5. The method of claim 3, wherein the registration mark is affixed from the hub to the characteristic radius of the set pitch.
6. The method for measuring the pitch of the controllable pitch propeller of claim 1, wherein in the first coordinate system, the axis of the cylindrical end surface of the cylinder of the controllable pitch propeller is set as the Z axis of the first coordinate system, the cylindrical end surface of the cylinder of the controllable pitch propeller is set as the X-Y plane of the first coordinate system, the connecting line of the cylindrical tool and the origin is set as the Y axis of the first coordinate system, and the X axis of the first coordinate system is perpendicular to the Y axis of the first coordinate system.
7. A method of measuring the pitch of a controllable pitch propeller according to claim 1, wherein said first reference point and said second reference point are selected in a first coordinate system according to the following condition:
the distances from the first reference point and the second reference point to the origin of the first coordinate system are both
The value of the set pitch characteristic radius, and,
the first reference point and the second reference point satisfy the following formula:
θ1+θ2＝θ
wherein the content of the first and second substances,
θ1for representing a spatial angle between the first reference point and the Y-axis of the first coordinate system,
θ2for representing a spatial angle between the second reference point and the Y-axis of the first coordinate system,
theta is the circumferential maximum included angle corresponding to the chord length value of the paddle at the set pitch characteristic radius position.
8. A method as claimed in claim 6, wherein the actual pitch Δ P between the first and second reference points is calculated1And phi1Wherein, Δ P1＝360/(θ1+θ2)·(ZA1-ZB1)，Φ1＝arctan(ΔP1/(2πr1))；
r1＝0.7·R1；
Wherein r is1For representing the set pitch characteristic radius;
R1the maximum set pitch radius is used for representing the maximum set pitch radius of the controllable pitch propeller at the set pitch position;
ZA1for representing a distance of the first reference point from a Z-axis of the first coordinate system;
ZB1for representing the distance of the second reference point from the Z-axis of the first coordinate system.
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CN112001642A (en) * 2020-08-27 2020-11-27 山东超越数控电子股份有限公司 Ship health assessment method
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Publication number Priority date Publication date Assignee Title
CN101417700B (en) * 2008-12-02 2011-10-05 上海诸光机械有限公司 Gear drive type blade pitch regulating mechanism and blade pitch regulating method
FR2940437B1 (en) * 2008-12-22 2013-02-15 Airbus France TOOL, TOOL ASSEMBLY, AND METHOD OF ADJUSTING THE FLANGE OF BLADES OF A MODEL PROPELLER
CN101865661A (en) * 2010-02-05 2010-10-20 陆金桂 New method for automatically measuring screw pitch of propeller blades
CN103307984B (en) * 2013-05-20 2016-08-10 华中科技大学 A kind of laser measuring device for measuring for adjustable propeller blade, system and method

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