CN206891656U - Adjustable pitch propeller static balance measurement apparatus - Google Patents
Adjustable pitch propeller static balance measurement apparatus Download PDFInfo
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- CN206891656U CN206891656U CN201720598754.0U CN201720598754U CN206891656U CN 206891656 U CN206891656 U CN 206891656U CN 201720598754 U CN201720598754 U CN 201720598754U CN 206891656 U CN206891656 U CN 206891656U
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Abstract
The utility model discloses a kind of adjustable pitch propeller static balance measurement apparatus, it includes pedestal, No. 1 weighing sensor, No. 2 weighing sensors, No. 3 weighing sensors, triangle substrate, left support bar, right support bar, V-type support end, No. 2 weighing sensors and No. 3 weighing sensors are symmetrically distributed in No. 1 weighing sensor both sides, described 1, 2, No. 3 weighing sensors are arranged on the pedestal, three end points and corresponding 1 of the triangle substrate, 2, No. 3 weighing sensors are corresponding to be placed, V-type support end is fixed with triangle substrate at No. 1 weighing sensor, the base end of the triangle substrate is arranged with multigroup support bar fixing hole fixing hole, the left side, right support bar is symmetrically fixed on support bar fixing hole.Compared with prior art, the utility model has the advantages of measurement accuracy is high, simple to operate.
Description
Technical field
It the utility model is related to propeller and lay particular stress on detection field, more particularly to a kind of adjustable pitch propeller static balance measurement
Device.
Background technology
Propeller is in rotation process probably due to uneven between each leaf and cause vibration as Steamship propeller, therefore
Propeller is required for doing static balance test.
Adjustable pitch propeller, blade is single blade and used on Jiang Grains, in the manufacturing process of single blade,
Need also exist for controlling the amount of unbalance between blade., it is necessary to measure the torque of a whole set of blade opposed helical paddle shaft line during measurement
Difference, the foundation whether qualified as static balance is judged.First measure the torque (blade of each blade opposed helical paddle shaft line
The product of weight and position of centre of gravity), the average value of a whole set of blade torque is then sought, then ask the torque of each blade and a whole set of blade
Average value difference, if in defined requirement.
It is existing to have two kinds of test modes,
1) 2 points of support measuring instruments：Being drawn a line in a segment distance of blade parallel end faces (typically requires line in blade
Center of gravity rear, i.e. a side close to blade tip), 2 points of supports are placed in online lower section, then hang weight in blade tip, until blade is horizontal flat
Weighing apparatus.According to weight, blade weight, the strong point is hung apart from data such as the distances of propeller center, the torque of blade is obtained (i.e.
Gblade*Y).The method has that measurement accuracy is low, security is low, operating difficulties, the torque that can not measure relative blade-span axis
The shortcomings of (i.e. Gblade*X).
2) lever mensuration, had the following disadvantages using lever mensuration：1. the moment of friction shadow of lever (rotating shaft)
Ring measurement accuracy；2. needing to be fixed by bolts in measurement apparatus during measurement, the end face of flange and bolt of propeller are easily damaged
Hole end surface；3. large-size propeller, operating difficulties；4. the torque (i.e. Gblade*X) of relative blade-span axis can not be measured.
Utility model content
The utility model is that the utility model provides a kind of high-precision in view of above mentioned problem existing for prior art proposes
Degree, propeller statical equilibrium measurement apparatus simple in construction.
Measurement apparatus is realized by following scheme：A kind of adjustable pitch propeller static balance measurement apparatus, it includes
Pedestal, No. 1 weighing sensor, No. 2 weighing sensors, No. 3 weighing sensors, triangle substrate, left support bar, right support bar, V
Type support end, No. 2 weighing sensors and No. 3 weighing sensors are symmetrically distributed in No. 1 weighing sensor both sides, described 1,2,
No. 3 weighing sensors are arranged on the pedestal, three end points of the triangle substrate and corresponding 1,2, No. 3 weighing and sensing
Device is corresponding to be placed, and V-type support end is fixed with the triangle substrate at No. 1 weighing sensor, the triangle substrate
Base end is arranged with multigroup support bar fixing hole fixing hole, and the left and right support bar is symmetrically fixed on support bar fixing hole.
Further, the left and right support bar is retractable support lever.
Further, left and right support bar is screw jack.
Further, the left and right post upper is respectively and fixedly provided with smooth ball.This smooth ball is institute in measuring method
The strong point stated.
Further, the triangle substrate is fixed by three battens and formed, and three battens are retractable plate.Can
With according to blade suitably sized adjust triangle substrate size, i.e.,：The position of support bar can effectively be adjusted.
The utility model has the advantages that：
1. simple to operate, installation and adjustment are conveniently, the setting of V-type support end and the blade of arc structure so that blade is pacified
The self-centering of X-direction is realized when putting；Without fixed blades in measurement apparatus, prevent blade in fixation or unloading process by
Damage, while workload when reducing measurement；The position of blade support point and height are adjustable, it is easy to accomplish blade is adjusted into water
Prosposition is put, the measurement of particularly suitable medium-and-large-sized adjustable pitch propeller.
, can be more accurate so as to synthesize by measuring and calculating the center of gravity in X and Y-direction 2. measurement accuracy is high
The torque of opposed helical paddle shaft line.
Brief description of the drawings
Fig. 1 is measurement apparatus front view in the utility model；
Fig. 2 is measurement apparatus top view in the utility model；
Fig. 3 is measurement apparatus right view in the utility model；
Fig. 4 is an end structure illustration of V-type support end in measurement apparatus in the utility model；
Fig. 5 is parameters position relationship schematic diagram in the utility model；
Fig. 6 is the mplifying structure schematic diagram of I in Fig. 5；
Fig. 7 is a flow chart of the utility model measuring method.
Wherein X-blade center of gravity is to blade bus distance；Y-blade center of gravity is to blade-span axis distance；Lflange-blade
Axis is to end face of flange distance；L1-No. 1 weighing sensor is to 2 or No. 3 weighing sensor Y-direction distances；L2-2 or 3 be known as weight
Sensor is to blade bus distance；L3-blade-span axis is to blade centroidal distance；L4-No. 1 weighing sensor is real to end face of flange
Border distance；L5-V-type supports end face to paddle flange end face distance；L6-No. 1 weighing sensor to two support end face distances.
Embodiment
In order to more fully understand and implement, the utility model is described in detail below in conjunction with the accompanying drawings.
As shown in figure to 1 to Fig. 4, a kind of adjustable pitch propeller static balance measurement apparatus, it includes pedestal and (not shown in figure
Go out), it is No. 1 weighing sensor 12,3 of weighing sensor 11,2 weighing sensor 13, triangle substrate 3, left support bar 2, right
Support bar 5, V-type support end 4, No. 2 weighing sensors 12 and No. 3 weighing sensors 13 are symmetrically distributed in No. 1 weighing and sensing
The both sides of device 11, described 1,2, No. 3 weighing sensor are arranged on the pedestal, three end points and phase of the triangle substrate 3
1,2, No. 3 weighing sensor answered, which corresponds to, to be placed, and V-type branch is fixed with the triangle substrate at No. 1 weighing sensor 11
End 4 is supportted, the base end of the triangle substrate 3 is arranged with multigroup support bar fixing hole 31, the left support bar 2, right support
Bar 5 is symmetrically fixed on support bar fixing hole 31.It should be noted that：The axial connecting line of the support bar fixing hole 31 with it is described
2nd, line is parallel between No. 3 weighing sensors；The left and right support bar is screw jack, can also be stretched using others
Shrinking structure, here, being not particularly limited.
The left and right post upper is respectively and fixedly provided with smooth ball, and this smooth ball is the support described in measuring method
Point, it is possible to reduce the frictional force between blade, it is convenient to adjust levelness, improve the precision of measurement.
The triangle substrate 3 is fixed by three battens and formed, and three battens are retractable plate.Can be according to oar
The size for suitably sized adjusting triangle substrate of leaf, i.e.,：The position of support bar can effectively be adjusted.
Preferably, between an end slope angle a of the V-type support end 4 is 30~60 °, and fixed using bolt 41
On the triangle substrate 3.
No. 1 weighing sensor overlaps with the V-type support end, without measuring L6, simple flow.
As shown in Figure 6 and Figure 7, a kind of adjustable pitch propeller static balance measuring method, it comprises the following steps：
SOO1 instrument regulations prepare
A) left and right strong point height is calculated according to left and right supporting point position, and the left and right strong point is adjusted to corresponding height
Degree；
(by three-dimensional graphics software), blade is placed in simulation from graphics, and the left and right supporting point position is scheduled on close
At blade 0.6R or at blade marginal position, now blade, which is placed, requires：Blade is horizontal positioned, 0.7R pitch is zero, leaf
Back up；The bearing height of the left and right strong point is measured, while respective support point is adjusted to corresponding height.
B) No. 1, No. 2, No. 3 weighing sensor zeroings；
Also numerical value F1, F2, the F3 zero that weigh of now No. 1, No. 2, No. 3 weighing sensor is just said.
SOO2 blades are placed and adjustment
C) by blade blade back upward, end face of flange is placed in V-type support end, and blade is supported by the left and right strong point；
Now, the architectural feature of the setting of V-type support end face and flange so that blade can be realized self-centering.
D) height of the left and right strong point is finely tuned, makes end face of flange perpendicular to horizontal plane；
Square can be used to measure, it is vertical with the pedestal level of measurement apparatus.
E) two support end faces of V-type support end are measured respectively to the distance L5 (a) and L5 (b) of end face of flange；
F) L5 (a) and L5 (b) difference are calculated, difference is less than or equal to 0.1mm；As difference is more than 0.1mm, then level is needed
It is slight to promote leaf tail end, make blade slight oscillatory, repeat step e), until meeting difference claimed range；Repeat step d), until
End face of flange meets the requirements perpendicular to horizontal plane with difference range；
Above three step d), e), f), it is possible to achieve end face of flange prevents blade tilts from putting perpendicular to pedestal level
Put, influence measurement accuracy.
G) No. 1 weighing sensor is measured to two support end face distance L6；
In order to simplify process, No. 1 weighing sensor and two support end faces can be set to overlap, i.e., now L6 is zero.
SOO3 data records
H) satisfactory L5 (a) and L5 (b) are recorded, and calculate average value L5；
I) record respectively No. 1, No. 2, No. 3 weighing sensors weigh numerical value F1, F2, F3；
Wherein, blade gravity Gblade is that 3 weighing sensors are weighed numerical value sum.
SOO4 instruments arrange and playback
J) blade is unloaded, repeat step b), c), d), e), f), g), h), i), until a set of blade is completed.
It should be noted that when measuring same set of blade, the position of the left and right strong point is constant；It is different to measure other
Set blade needs to reset the position of the strong point.
It is the calculation procedure of this measuring method below,
According to power and equalising torque, as can be drawn from Figure 5：
Gblade=F1+F2+F3 (1)；
Gblade*L3=(F2+F3) * L1 (2)；
Gblade*X+L2*F3=F2*L2 (3)；
Y=L3+Lflange-L4 (4)；
L4=L5+L6 (5)
Obtained by formula (2) and (1)：
Obtained by formula (6) and (4)：
Obtained by formula (3) and (1)：
Torque in propeller axis and blade-span axis direction is respectively：
Gblade*Y=(Lflance-L4) * (F1+F2+F3)+(F2+F3) * L1；
Gblade*X=(F2-F3) * L2；
Therefore resultant moment is：
This measuring method can measure the center of gravity of X and Y-direction, can calculate Gblade*X values, and and Y-direction
Gblade*Y synthesis draws more accurately blade torqueContrast existing 2 supporting methods and lever
Mensuration can only take P*R=Gblade*Y, and this measuring method is more accurate.
Compared with prior art, the utility model is simple to operate, installation and adjustment are convenient, the setting of V-type support end and circle
The blade of arc structure so that blade realizes the self-centering of X-direction when laying；Without fixed blades in measurement apparatus, prevent
Blade is damaged in fixation or unloading process, while workload when reducing measurement；The position of blade support point and height are can
Adjust, it is easy to accomplish blade is adjusted to horizontal level, the measurement of particularly suitable medium-and-large-sized adjustable pitch propeller.Measurement accuracy is high,
Can be by measuring and calculating the center of gravity in X and Y-direction, so as to synthesize the torque of more accurate opposed helical paddle shaft line.
The utility model is not limited to above-mentioned embodiment, if do not taken off to various changes of the present utility model or deformation
From spirit and scope of the present utility model, if these changes and deformation belong to the claims and equivalents of the utility model
Within the scope of, then the utility model is also intended to comprising these changes and deformation.
Claims (6)
- A kind of 1. adjustable pitch propeller static balance measurement apparatus, it is characterised in that：It includes pedestal, No. 1 weighing sensor, 2 Number weighing sensor, No. 3 weighing sensors, triangle substrate, left support bar, right support bar, V-type support end, described 2 are known as weight Sensor and No. 3 weighing sensors are symmetrically distributed in No. 1 weighing sensor both sides, and described 1,2, No. 3 weighing sensor is arranged on On the pedestal, three end points of the triangle substrate and the corresponding placement of corresponding 1,2, No. 3 weighing sensor, described No. 1 It is fixed with V-type support end on triangle substrate at weighing sensor, the base end of the triangle substrate is arranged with multigroup Support bar fixing hole fixing hole, the left and right support bar are symmetrically fixed on support bar fixing hole.
- 2. adjustable pitch propeller static balance measurement apparatus according to claim 1, it is characterised in that：The left and right support Bar is retractable support lever.
- 3. adjustable pitch propeller static balance measurement apparatus according to claim 2, it is characterised in that：Left and right support bar is Screw jack.
- 4. according to any one of claims 1 to 3 adjustable pitch propeller static balance measurement apparatus, it is characterised in that：It is described Left and right post upper is respectively and fixedly provided with smooth ball.
- 5. adjustable pitch propeller static balance measurement apparatus according to claim 1, it is characterised in that：The triangle substrate Fixed and formed by three battens, three battens are retractable plate.
- 6. adjustable pitch propeller static balance measurement apparatus according to claim 1, it is characterised in that：Described 1 is known as re-transmission Sensor overlaps with the V-type support end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720598754.0U CN206891656U (en) | 2017-05-26 | 2017-05-26 | Adjustable pitch propeller static balance measurement apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720598754.0U CN206891656U (en) | 2017-05-26 | 2017-05-26 | Adjustable pitch propeller static balance measurement apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109871947A (en) * | 2019-03-21 | 2019-06-11 | 哈尔滨工业大学 | Multistage components initial unbalance, stacking method and device step by step are equipped in large high-speed revolution based on convolutional neural networks |
| CN110153664A (en) * | 2019-03-21 | 2019-08-23 | 哈尔滨工业大学 | Multistage components assembly method and device are equipped in large high-speed revolution based on BP neural network |
| CN111076656A (en) * | 2018-10-22 | 2020-04-28 | 哈尔滨工业大学 | Part tolerance distribution method and device based on four-parameter compensation |
| CN111413031A (en) * | 2019-01-07 | 2020-07-14 | 哈尔滨工业大学 | Deep learning regulation and assembly method and device for large-scale high-speed rotation equipment based on dynamic vibration response characteristics |
-
2017
- 2017-05-26 CN CN201720598754.0U patent/CN206891656U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111076656A (en) * | 2018-10-22 | 2020-04-28 | 哈尔滨工业大学 | Part tolerance distribution method and device based on four-parameter compensation |
| CN111413031A (en) * | 2019-01-07 | 2020-07-14 | 哈尔滨工业大学 | Deep learning regulation and assembly method and device for large-scale high-speed rotation equipment based on dynamic vibration response characteristics |
| CN109871947A (en) * | 2019-03-21 | 2019-06-11 | 哈尔滨工业大学 | Multistage components initial unbalance, stacking method and device step by step are equipped in large high-speed revolution based on convolutional neural networks |
| CN110153664A (en) * | 2019-03-21 | 2019-08-23 | 哈尔滨工业大学 | Multistage components assembly method and device are equipped in large high-speed revolution based on BP neural network |
| CN110153664B (en) * | 2019-03-21 | 2020-04-24 | 哈尔滨工业大学 | Method and device for assembling multistage parts of large-scale high-speed rotation equipment based on BP neural network |
| CN109871947B (en) * | 2019-03-21 | 2021-10-29 | 哈尔滨工业大学 | Large-scale high-speed rotation equipment multi-stage part initial unbalance amount step-by-step stacking method based on convolutional neural network |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220223 Address after: 529300 blocks 3 and 4, No. 10, Huancui East Road, cuishanhu new area, Kaiping City, Jiangmen City, Guangdong Province Patentee after: Kaiping Yuanhang propeller Manufacturing Co.,Ltd. Address before: 511400 No. 10, Caogang street, Qiaoshan village, Xinling Road, Shiji Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU PANYU YUANHANG PROPELLER MANUFACTURING CO.,LTD. |