CN206504686U - Propeller blade measurer for thickness and measuring system - Google Patents
Propeller blade measurer for thickness and measuring system Download PDFInfo
- Publication number
- CN206504686U CN206504686U CN201720123856.7U CN201720123856U CN206504686U CN 206504686 U CN206504686 U CN 206504686U CN 201720123856 U CN201720123856 U CN 201720123856U CN 206504686 U CN206504686 U CN 206504686U
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- leg
- blade
- thickness
- measurement
- spring center
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Abstract
The utility model discloses a kind of propeller blade measurer for thickness and measuring system, including U-shaped annex；The two ends of the U-shaped annex are respectively fixing end and measurement end；Leg is provided with the inside of the fixing end of U-shaped annex, outside is provided with spring center housing；Described leg is three leg brackets, and three supporting leg bottoms of leg are located on same level A, and make the line of three supporting leg bottoms for equilateral triangle.Propeller blade measurer for thickness described in the utility model and measuring system, measurement apparatus are simple in construction, and cost is low, and measurement is accurate.
Description
Technical field
The utility model is related to a kind of inexpensive propeller blade thickness rapid measurement device and measuring system.
Background technology
At present, for propeller blade thickness measurement is, it is necessary to which the size of measurement is to measure blade surface point along method
The thickness in line direction, solves the key of problem：Find the normal direction of specified point, but existing measurement apparatus, equipment is very multiple
Miscellaneous, soft hardware equipment is expensive.
The cloud data of Blade roughcast is obtained in particular with 3D scanners, the measurement of vane thickness is realized in software.
Though this method precision is high, measurement cost is high, and measurement efficiency is low, enterprise is faced the embarrassment that measurement cost is far above part profit
Situation.
Therefore, a kind of measurement apparatus that can complete to measure, equipment is simple, with low cost is developed, becomes people and urgently solves
Certainly the problem of.
The content of the invention
According to technical problem set forth above, and a kind of propeller blade measurer for thickness and measuring system are provided, used
In solving existing measurement apparatus, equipment is very complicated, the expensive shortcoming of soft hardware equipment.The technological means that the utility model is used
It is as follows：
A kind of propeller blade measurer for thickness, including U-shaped annex；The two ends of the U-shaped annex are respectively fixing end
And measurement end；Leg is provided with the inside of the fixing end of U-shaped annex, outside is provided with spring center housing；Described leg is three
Leg brackets, three supporting leg bottoms of leg are located on same level A, and make the line of three supporting leg bottoms for positive triangle
Shape.
Spring center is provided with described spring center housing, between described spring center and spring center inner walls
Spring is provided with, spring center front end is passed through the fixing end of U-shaped annex, and extend out to the supporting leg bottom of leg；It is described
Axis where spring center is vertical with the horizontal plane A where leg supporting leg bottom；The measurement end of the U-shaped annex detachably connects
It is connected to micrometer caliper, the front end of micrometer caliper is provided with down top；Described spring center is top with to be coaxially disposed, and
And tip is oppositely arranged.
As being provided with the preferred spring center close to leg side for spacing annular projection, make spring one end
Annular projection is pressed against, the other end is pressed against spring center inner walls.
It is threadedly coupled as the construction section outer wall of preferred micrometer caliper with the measurement end of U-shaped annex.
A kind of measuring system, including blade location device to be measured and blade tested point thickness detection apparatus；Described leaf
Piece tested point thickness detection apparatus is above-mentioned propeller blade measurer for thickness；Described blade location device to be measured includes
To heart column, semiconductor laser transmitter, scroll chuck and turning arm.
Propeller is folded with the middle of described scroll chuck, described scroll chuck upper surface has index dial；It is described right
Heart column is arranged on the outside of scroll chuck, described to include the supporting part being vertically arranged and horizontally disposed fixation to heart column
Portion；It is described to being provided with turning arm on heart column fixed part, the center of turning arm is rotated with fixed part to be connected, and makes turning arm
Center and the axis of runner blade of propeller it is coaxial；The end of the turning arm is provided with half for instruction tested point position in real time
Conductor Laser transmitter；The tested point that described blade tested point thickness detection apparatus can be indicated semiconductor laser transmitter
Carry out thickness measure.
Vertically connected with supporting part top as the preferred fixed part to heart column.
As preferably when turning arm rotates against arm center rotating, semiconductor laser transmitter can be turned with R190 circumference
It is dynamic.
Compared with prior art, propeller blade measurer for thickness described in the utility model and measuring system, spiral shell
The leg for revolving paddle blade measurer for thickness is three leg brackets, and three supporting leg bottoms of leg are located on same level A, and
And make the line of three supporting leg bottoms for equilateral triangle；Axis where the spring center is with the water where leg supporting leg bottom
Plane A is vertical；Measurement apparatus is simple in construction, and cost is low, and measurement is accurate.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the utility model propeller blade measurer for thickness.
Fig. 2 is the schematic diagram of the utility model measuring system.
Fig. 3 is the schematic diagram of the utility model propeller blade.
Fig. 4 is the schematic diagram of the utility model propeller blade measurer for thickness.
Fig. 5 is the schematic diagram of the utility model leg.
Fig. 6 is the schematic diagram of the utility model spring center housing and spring center.
Fig. 7 is the operating diagram of the utility model propeller blade measurer for thickness.
Fig. 8 is the instrumentation plan of the utility model engineering normal in practice.
Fig. 9 is the principle schematic of the utility model normal measure.
Figure 10 is the utility model Gaussian curvature coloring display figure.
Figure 11 is the position view of the utility model propeller blade tested point.
Figure 12 is to take equilateral triangle schematic diagram in the utility model propeller blade neighborhood.
Figure 13 is measurement data chart (θ=0 °) at the utility model C1.
Figure 14 is measurement data line chart (θ=0 °) at the utility model C1.
Figure 15 is measurement data chart (θ=30 °) at the utility model C1.
Figure 16 is measurement data line chart (θ=30 °) at the utility model C1.
Figure 17 is measurement data chart (θ=60 °) at the utility model C1.
Figure 18 is measurement data line chart (θ=60 °) at the utility model C1.
Figure 19 is measurement data chart (θ=90 °) at the utility model C1.
Figure 20 is measurement data line chart (θ=90 °) at the utility model C1.
Figure 21 is measurement data chart (θ=0 °) at the utility model C2.
Figure 22 is measurement data line chart (θ=0 °) at the utility model C2.
Figure 23 is measurement data chart (θ=30 °) at the utility model C2.
Figure 24 is measurement data line chart (θ=30 °) at the utility model C2.
Figure 25 is measurement data chart (θ=60 °) at the utility model C2.
Figure 26 is measurement data line chart (θ=60 °) at the utility model C2.
Figure 27 is measurement data chart (θ=90 °) at the utility model C2.
Figure 28 is measurement data line chart (θ=90 °) at the utility model C2.
Figure 29 is measurement data chart (θ=0 °) at the utility model C3.
Figure 30 is measurement data line chart (θ=0 °) at the utility model C3.
Figure 31 is measurement data chart (θ=30 °) at the utility model C3.
Figure 32 is measurement data line chart (θ=30 °) at the utility model C3.
Figure 33 is measurement data chart (θ=60 °) at the utility model C3.
Figure 34 is measurement data line chart (θ=60 °) at the utility model C3.
Figure 35 is measurement data chart (θ=90 °) at the utility model C3.
Figure 36 is measurement data line chart (θ=90 °) at the utility model C3.
Wherein：1st, to heart column, 2, semiconductor laser transmitter, 3, propeller blade thickness special measuring tool, 4, three-jaw card
Disk, 5, turning arm, 6, propeller,
31st, spring, 32, spring center housing, 33, leg, 34, spring center, 35, under it is top, 36, U-shaped annex, 37,
Micrometer caliper.
Embodiment
As shown in figure 1, a kind of propeller blade measurer for thickness, including U-shaped annex 36；The two of the U-shaped annex 36
End is respectively fixing end and measurement end；Leg 33 is provided with the inside of the fixing end of U-shaped annex 36, outside is provided with spring center shell
Body 32；Described leg 33 is three leg brackets, and three supporting leg bottoms of leg 33 are located on same level A, and make three
The line of individual supporting leg bottom is equilateral triangle, and described leg 33 is used for the normal direction for determining propeller blade tested point.
Spring center 34, described spring center 34 and spring center housing are provided with described spring center housing 32
Spring 31 is provided between 32 inwalls, the front end of spring center 34 is passed through the fixing end of U-shaped annex 36, and extend out to leg 33
Supporting leg bottom, described spring center housing 32 is used for bearing spring 31 and spring center 34.
It is provided with the spring center 34 close to the side of leg 33 for spacing annular projection, makes the side pressure of spring 31 1
Annular projection is against, the other end is pressed against the inwall of spring center housing 32.
Described spring 31 can realize the axial stretching function of spring center 34 from Low rigidity, small damping spring.Institute
Axis where stating spring center 34 is vertical with the horizontal plane A where the supporting leg bottom of leg 33；Described spring center 34 is used for
Indicate propeller blade tested point.
Described spring center housing 32 is detachably fixed form, leg with what the fixing end of U-shaped annex 36 was threadedly coupled
33 with U-shaped annex 36 fixing end be threadedly coupled.
The measurement end of the U-shaped annex 36 is removably connected with micrometer caliper 37, it is preferred that the peace of micrometer caliper 37
The measurement end that section outer wall is filled with U-shaped annex 36 is threadedly coupled.
The front end of micrometer caliper 37 is provided with down top 35；Described spring center 34 and under top 35 be coaxially disposed,
And tip is oppositely arranged, it is described under top 35 be used for determine rotation paddle blade following table millet cake position.
Described micrometer caliper 37, for accurately measuring propeller blade dot thickness to be measured.The described energy of U-shaped annex 36
Multiple Type is enough replaced with, for carrying other parts, and ensures that spring center 34 is top 35 coaxial with.
The height of described U-shaped annex 36 is H, and H is preferably 30mm, 60mm or 90mm, during in-site measurement, can be according to leaf
Piece tested point position, to select the U-shaped annex of different model.
As shown in figure 3, distance of C1, C2, C3 point apart from propeller blade edge, is in figure 3 25mm, such a operating mode should
When the U-shaped annex for taking this model of H=30.
But if the thickness of measurement distance blade edge more far point, such as point apart from blade edge 50 are thought in scene, then
Now H=30 ＜ 50, U-shaped annex bottom can be because size limitation, be blocked by blade edge.So, it should now change H=60
The U-shaped annex of this model.U-shaped annex is made into replaceable form so that measurer adapts to different measurement positions, meets different positions
The measurement demand put.
As shown in Fig. 1 to Fig. 7, a kind of measuring system, including blade location device to be measured and blade dot thickness inspection to be measured
Survey device；Described blade tested point thickness detection apparatus is above-mentioned propeller blade measurer for thickness；Described blade
Location device to be measured is included to heart column 1, semiconductor laser transmitter 2, scroll chuck 4 and turning arm 5, realizes blade and treats
The radially and circumferentially positioning of measuring point.
Propeller 6 is folded with the middle of described scroll chuck 4, the described upper surface of scroll chuck 4 has index dial；It is described
Scroll chuck 4, one be using scroll chuck 4 clamping and positioning function, realize the clamping and positioning of the blade of propeller 6；Two
It is, using the indexing table apparatus having, to realize the accurate angle rotation of workpiece.
It is described that the outside of scroll chuck 4, the supporting part for including being vertically arranged to heart column 1 are arranged to heart column 1
With horizontally disposed fixed part；It is preferred that, the fixed part to heart column 1 is vertically connected with supporting part top.It is described to the heart
Turning arm 5 is provided with the fixed part of column 1, the center of turning arm 5 is rotated with fixed part to be connected, and makes the center of turning arm 5
Axis of runner blade with propeller 6 is coaxial；The end of the turning arm 5 is provided with the semiconductor for indicating tested point position in real time
Generating laser 2；Described semiconductor laser transmitter 2 is commonly called as laser pen, with high light-gathering, can realize that noncontact is indicated
Function, the position of tested point can be indicated in real time.
Described blade tested point thickness detection apparatus can carry out thick to the tested point that semiconductor laser transmitter 2 is indicated
Degree measurement.When turning arm 5 rotates against the center rotating of arm 5, semiconductor laser transmitter 2 can be with R190 circular-rotations.It is described
Turning arm 5 be used for bearing semiconductor generating laser 2, and determine R190 circumference.
As shown in Fig. 1 to Fig. 7, a kind of measuring method using above-mentioned measuring system comprises the following steps：
S1, propeller 6 is clamped on the scroll chuck 4 of blade location device to be measured.
S2, rotation turning arm 5, make the luminous point of semiconductor laser transmitter 2 fall within the blade edge of propeller 6, and swashing
Made marks at luminous point, i.e. tested point, C1 points.
S3, by the scroll chuck 4 with index dial, 16 ° are rotated successively, it is similarly, to be measured in the blade surface mark of propeller 6
Point, C2 points, C3 points.
S4, measure tested point, C1 points, C2 points, the thickness value of C3 points successively using blade tested point thickness detection apparatus.
S4 measurement specifically includes following steps：
S41, spring center 34 overlapped with tested point.
S42, adjustment leg 33, what is stabilized it is supported on the spoon of blade of propeller 6.
S43, turn micrometer caliper 37, top 35 are in close contact with blade lower surface under making, and read reading.
S44, duplicate measurements three times, record data is averaged, and is used as the vane thickness of propeller 6 of the point.
, it is necessary to according in Design of Propeller drawing, measure C1 points, C2 points, 3 points of C3 thickness value in measurement.Due to spiral
Paddle blade is higher-order curved surfaces, and its vane thickness is not equal everywhere.
Therefore in order to represent the information of propeller blade thickness, it is necessary to the particular point of specific position is taken, is given at particular point
Go out thickness information.The processing mode of propeller blade is casting, after casting, measurement blank 3 points of thickness herein, with
Investigate whether casting accuracy reaches requirement.
As shown in figure 3, measuring method described in the utility model, measurement processing dimension C1, C2, C3 (note：Blade is in the point
Along the thickness of normal direction), it is first determined R190 justifies；Again on the basis of blade edge, 16 °, 32 °, 48 ° of line positions are determined, i.e.,
It can determine that C1, C2, C3 point；Propeller blade thickness special measuring tool is finally used, vane thickness, measurement apparatus knot is measured
Structure is simple, and cost is low, and measurement is accurate.
The design principle of propeller blade measurer for thickness of the present utility model, for " line-of-sight course " of original creation, and from reason
By the reasonability for demonstrating the method.
1st, measure crucial：The normal direction of blade surface point is determined, and normal direction is presented in real time with physical form,
It is convenient for measuring.Being converted into mathematical problem is：Seek the normal direction of free form surface point.
2nd, thought is measured：" with face for point "
2.1 as shown in figure 8, in engineering in practice, be intended to present certain point normal direction in plane in real time, generally with column
Triangular panels are realized.Its principle, as shown in figure 9, in plane any point P normalIt is equivalent to its point of neighborhood three institute
In the normal of planeI.e.
2.2 similarly, when the curvature of certain curved surface is smaller, you can with the normal of plane where 3 points in vertex neighborhood to be measured,
Approximately to replace the normal of tested point, i.e., " line-of-sight course ".
The application precondition of 2.3 " line-of-sight courses "：Curvature of curved surface is smaller and change is little, can be near in vertex neighborhood to be measured
Seemingly regard plane as.
Whether checking model meets the application precondition of " line-of-sight course "
1st, by certain model propeller blade step model, import in Creo.
2nd, by showing spoon of blade " Gaussian curvature ", amount of curvature of the curved surface in tested point is judged, and around tested point
Curvature varying.
3rd, as shown in Figure 10, tested point C1, C2, C3 curvature value are respectively 0.0024,0.0009,0.004, explanation to result
Tested point and its neighborhood in point curvature it is smaller.
Vertex neighborhood cloud atlas color to be measured is identical, illustrates that curvature of curved surface change is little.
To sum up, the normal direction of tested point can be determined using " line-of-sight course ".
The application of " line-of-sight course " and analysis of experimental data
1st, in Creo, tested point C1, C2, C3 are marked, as shown in figure 11.
2nd, centered on C1, C2, C3, three point A, B, C are taken in its neighborhood, equilateral triangle as shown in figure 12 is constituted.
To determine the optimal size of tri patch, it is variable to make equilateral triangle length of side S；To ensure to take 3 points uniform
Property, representativeness, make the high line of equilateral triangle and tested point and blade center line angle theta be variable, make the measurement work(with Creo
Can, thickness of the blade on tri patch method arrow is measured, is contrasted with standard thickness.The data obtained at C1, is shown in Figure 13 to Figure 20,
The data obtained at C2, C3, is shown in Figure 21 to Figure 36.
3rd, analysis of experimental results：
3.1 from Figure 14, Figure 16, Figure 18, Figure 20, as equilateral triangle length of side S increases are (i.e. as gore is unilateral
Long-pending increase), measurement error increases therewith.
Illustrate measurement result, influenceed by equilateral triangle length of side S.Therefore, to ensure that measurement error is smaller, the smaller length of side should be taken
It is advisable.
3.2 from Figure 13, Figure 15, Figure 17, Figure 19, and θ is different, and measurement result is also different.
Illustrate measurement result, influenceed by the high line of equilateral triangle with tested point and blade center line angle theta.But error is equal
Less than 0.04mm, the measurement error of the size can be received.
The requirement of 3.3 specifications of surveys, C1, C2, C3 design tolerance are -0.3~+0.8mm, are the principle for reducing measurement as far as possible
Error, during final design measurer, the length of side of tri patch should take small 10mm to be advisable, and the errors of principles control of measurement can exist
Within 0.02mm.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its inventive concept is subject to equivalent substitution or change, should all cover protection domain of the present utility model it
It is interior.
Claims (6)
1. a kind of propeller blade measurer for thickness, it is characterised in that including U-shaped annex (36)；
The two ends of the U-shaped annex (36) are respectively fixing end and measurement end；
Leg (33) is provided with the inside of the fixing end of U-shaped annex (36), outside is provided with spring center housing (32)；
Described leg (33) is three leg brackets, and three supporting leg bottoms of leg (33) are located on same level A, and make
The line of three supporting leg bottoms is equilateral triangle；
Spring center (34), described spring center (34) and spring center shell are provided with described spring center housing (32)
Spring (31) is provided between body (32) inwall, spring center (34) front end is passed through the fixing end of U-shaped annex (36), and stretch
Go out to the supporting leg bottom of leg (33)；
The horizontal plane A where the same leg of axis (33) supporting leg bottom where the spring center (34) is vertical；
The measurement end of the U-shaped annex (36) is removably connected with micrometer caliper (37), and the front end of micrometer caliper (37) is set
It is equipped with down top (35)；
Described spring center (34) and under top (35) be coaxially disposed, and tip is oppositely arranged.
2. propeller blade measurer for thickness according to claim 1, it is characterised in that：
It is provided with the spring center (34) close to leg (33) side for spacing annular projection, makes spring (31) one end
Annular projection is pressed against, the other end is pressed against spring center housing (32) inwall.
3. propeller blade measurer for thickness according to claim 1, it is characterised in that：
The construction section outer wall of micrometer caliper (37) is threadedly coupled with the measurement end of U-shaped annex (36).
4. a kind of measuring system, it is characterised in that including blade location device to be measured and blade tested point thickness detection apparatus；
Described blade tested point thickness detection apparatus is the propeller blade thickness described in the claims 1-3 any one
Measurement apparatus；
Described blade location device to be measured include to heart column (1), semiconductor laser transmitter (2), scroll chuck (4) and
Turning arm (5)；
Propeller (6) is folded with the middle of described scroll chuck (4), described scroll chuck (4) upper surface has index dial；
It is described heart column (1) to be arranged on the outside of scroll chuck (4), the support for including being vertically arranged to heart column (1)
Portion and horizontally disposed fixed part；
It is described that to being provided with turning arm (5) on heart column (1) fixed part, the center of turning arm (5) is rotated with fixed part to be connected, and
And make the center of turning arm (5) and the axis of runner blade of propeller (6) coaxial；
The end of the turning arm (5) is provided with the semiconductor laser transmitter (2) for indicating tested point position in real time；
Described blade tested point thickness detection apparatus can carry out thickness to the tested point that semiconductor laser transmitter (2) is indicated
Measurement.
5. measuring system according to claim 4, it is characterised in that：
The fixed part to heart column (1) is vertically connected with supporting part top.
6. measuring system according to claim 4, it is characterised in that：
When turning arm (5) rotates against arm (5) center rotating, semiconductor laser transmitter (2) can be with R190 circular-rotations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123856.7U CN206504686U (en) | 2017-02-10 | 2017-02-10 | Propeller blade measurer for thickness and measuring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720123856.7U CN206504686U (en) | 2017-02-10 | 2017-02-10 | Propeller blade measurer for thickness and measuring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504686U true CN206504686U (en) | 2017-09-19 |
Family
ID=59834459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720123856.7U Expired - Fee Related CN206504686U (en) | 2017-02-10 | 2017-02-10 | Propeller blade measurer for thickness and measuring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206504686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643619A (en) * | 2017-02-10 | 2017-05-10 | 大连交通大学 | Measuring device for thickness of propeller blade, measuring system and measuring method |
| CN108020160A (en) * | 2017-12-12 | 2018-05-11 | 镇江同舟螺旋桨有限公司 | Marine propeller blade automatic laser measuring device |
-
2017
- 2017-02-10 CN CN201720123856.7U patent/CN206504686U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643619A (en) * | 2017-02-10 | 2017-05-10 | 大连交通大学 | Measuring device for thickness of propeller blade, measuring system and measuring method |
| CN106643619B (en) * | 2017-02-10 | 2022-10-14 | 大连交通大学 | Propeller blade thickness measuring device, measuring system and measuring method |
| CN108020160A (en) * | 2017-12-12 | 2018-05-11 | 镇江同舟螺旋桨有限公司 | Marine propeller blade automatic laser measuring device |
| CN108020160B (en) * | 2017-12-12 | 2023-11-07 | 镇江同舟螺旋桨有限公司 | Automatic laser measuring device for marine propeller blade |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20170919 Termination date: 20180210 |