CN107101783A - A kind of centreless marine propeller static balancing instrument and its static balance detection method - Google Patents
A kind of centreless marine propeller static balancing instrument and its static balance detection method Download PDFInfo
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- CN107101783A CN107101783A CN201710306613.1A CN201710306613A CN107101783A CN 107101783 A CN107101783 A CN 107101783A CN 201710306613 A CN201710306613 A CN 201710306613A CN 107101783 A CN107101783 A CN 107101783A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M1/00—Testing static or dynamic balance of machines or structures
- G01M1/12—Static balancing; Determining position of centre of gravity
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Abstract
The present invention discloses a kind of centreless marine propeller static balancing instrument and its static balance detection method, suspension Weighing mechanism is fixedly connected with the three-jaw support member bottom of surface, centering testing agency is fixedly connected with the top of three-jaw support member, centering adjustment mechanism is cased with outside three-jaw support member, centering adjustment mechanism is extended vertically through above and below three-jaw support member, the bottom of centering adjustment mechanism is supported on suspension Weighing mechanism；Centering testing agency places for preliminary lead screw oar, centering adjustment mechanism adjusts propeller center position according to the feedback data of centering testing agency, suspension testing agency suspends for propeller, matter deviator is detected simultaneously and weighs propeller weight, using vision imaging device and laser triangular distance measuring apparatus collection propeller center and the offset at demarcation center, propeller center position is translated by Serve Motor Control guide rail and realizes centering, the high-precision centering of spindle-less is realized, the error of centralization and static balance accuracy of detection is improved.
Description
Technical field
The present invention relates to a kind of static balance detection technique, it is adaptable to carries out static balance detection to maximization marine propeller.
Background technology
The size of the propeller of maximization ship is increasing, while rotating speed is also increasingly faster, to the injustice of propeller
Weigh quality requirement more and more higher.Current propeller statical equilibrium detection mainly has balance shaft rolling method and swing method, both inspections
The centering mode of survey method is all, by mandrel centering, propeller to be lifted by crane, and adjusts to level button and is steadily enclosed on centering on mandrel,
Then again in upper end using cone cap extruding locking, propeller is made with being detected after mandrel one entirety of formation, after the completion of detection
Cone cap is removed again, is removed propeller and is processed.The problem of these detection methods are present be：1）Because heavy coil oar can reach
To 100 tons, there is quality problem of non-uniform in blade, and once steady lifting is through mandrel more difficulty, it is necessary to repeatedly manually adjust
Could steadily it pass through, operation is inconvenient and deposits potential safety hazard.2) during propeller is installed, its mandrel leg surface meeting and spiral shell
Revolve oar endoporus and produce abrasion, repeatedly after abrasion mandrel can be made to be produced with propeller inner hole and rock, increase measurement error.3）Versatility
Limited by axle diameter, a detection means can only measure several hole sizes and change little propeller, it is impossible to realize big
The versatility measurement of most propellers.4）Mandrel has eccentric error with measuring table demarcation center, influences its measurement accuracy.
The content of the invention
It is an object of the invention to solve the problem of existing large-size propeller static balance detection is present, a kind of centreless ship is proposed
With its its static balance detection method of propeller static balancing instrument, while propeller centreless shaft assignment is realized, propeller is carried out
Weigh and high-accuracy static balance detection is carried out to propeller.
A kind of centreless marine propeller static balancing instrument of the present invention is realized by following technical scheme：Bottom is to suspend to claim
Heavy-duty machine structure, suspension Weighing mechanism is fixedly connected at the top of the three-jaw support member bottom of surface, three-jaw support member and is fixedly connected with centering
It is cased with extending vertically through centering adjustment mechanism, three-jaw above and below centering adjustment mechanism, three-jaw support member outside testing agency, three-jaw support member
The upper surface of support member is less than the upper surface of centering adjustment mechanism, and centering adjustment mechanism is located at the surface of suspension Weighing mechanism,
The bottom of centering adjustment mechanism is supported on suspension Weighing mechanism.
Further, centering adjustment mechanism top is the square horizontal support that one piece of middle is provided with hollow out three-jaw groove
The first heavily loaded sliding block of two levels arranged face-to-face is fixedly connected with plate, supporting plate lower edge, every first heavy duty is sliding
It is the heavily loaded guide rail of horizontal first immediately below block；The company of one piece of square level is fixedly connected with below two first heavily loaded guide rails
Fishplate bar, the middle of connecting plate is provided with to be fixedly connected at the manhole of a hollow out, the lower edge of connecting plate and faced each other
The heavily loaded sliding block of the second of two levels in face, the second heavily loaded sliding block and the first heavily loaded sliding block are in orthogonal space, every second heavy duty
It is the second heavily loaded guide rail of a level immediately below sliding block；It is solid through first support block immediately below each second heavily loaded guide rail
Surely second support block is connected；The output shaft of a number servomotor is fixedly connected with supporting plate through first screw-nut body,
The output shaft of No. two servomotors is fixedly connected with connecting plate through second screw-nut body, the output shaft of No. two servomotors with
The output shaft of a number servomotor is in orthogonal space.
Further, three-jaw support member is made up of the disc-shaped base of lower semisection and the three-jaw of upper semisection, and three-jaw can cover
In three-jaw groove, the external diameter of disc-shaped base is less than the internal diameter for the manhole that connecting plate middle is provided with.
Further, the bottom of suspension Weighing mechanism is hydraulic floating base, and platform hydraulic floating mount middle is
One hemispherical chamber, it is the hemisphere face matched with it that hemispherical cavity bottom, which is provided with directly over oil transportation hole, hemispherical chamber,
Bearing, the edge of hemispheric bearing top surface is equipped with horizon sensor；Hemispheric bearing top surface be located at three-jaw support member just under
Side and it is fixedly connected with three-jaw support member；Hemispherical chamber is extended with 2 groups of centrosymmetric L-type branch of opposite hemispheres shape chamber to surrounding
Brace, the center equipped with relative to hemispherical chamber is arranged symmetrically two-by-two on the top surface of L-type support arm 4 are with biography of weighing
The second support block of support directly over the synchronous hydra-ulic jacks of sensor, the top surface of synchronous hydra-ulic jacks；The surrounding of L-type support arm
The uniform 3 servo-hydraulic jack with weighing sensor, servo-hydraulic jack is located under the top edge of hemispheric bearing
Side.
The core marine propeller static balancing instrument static balance detection method is realized by following technical scheme：Including with
Lower step：
A, by propeller suspended mobile to the top of centering testing agency, centering testing agency work, by the endoporus of propeller
The heart feeds back to host computer with respect to the deviation at the center of centering testing agency, and host computer controls propeller to translate according to deviation,
To propeller coarse positioning；
B, decline propeller, make propeller be enclosed on outside centering testing agency and support on the supporting plate, the measurement of centering testing agency
The endoporus center of propeller with respect to three-jaw support member center offset and feed back to host computer, host computer is according to offset control
No. two servomotors and a servomotor job, to propeller fine positioning；
C, the synchronous hydra-ulic jacks vertical downward movement with weighing sensor, drive centering adjustment mechanism synchronous vertical to decline,
Support plate upper surface is set to be less than three-jaw support member upper surface, propeller is carried by three-jaw support member；
D, hydraulic oil injected from hydraulic pressure oilhole, hemispheric bearing suspends vertically upward, horizon sensor measurement hemisphere face axle
The tilt quantity held simultaneously feeds back to host computer, and servo-hydraulic jack of the PC control with weighing sensor stretches out vertically upward,
Carrying hemispheric bearing and the tilt quantity for adjusting hemispheric bearing, level is in until horizon sensor detects hemispheric bearing
Untill state.
The present invention is as follows using the technique effect embodied after above-mentioned technical proposal：
Centering testing agency in the present invention is placed for preliminary lead screw oar, and center and demarcation are placed to propeller after placement
The detection of center offset, centering adjustment mechanism adjusts propeller center position according to the feedback data of centering testing agency, directly
Error allowed band is reached to its offset, suspension testing agency suspends for propeller, while detecting the matter deviator of its blade
And weigh propeller weight.Using vision imaging device and laser triangular distance measuring apparatus collection propeller center with demarcating the inclined of center
Heart amount, then translate propeller center position by Serve Motor Control guide rail and realize centering, it is to avoid conventional core shaft assignment band
The drawbacks of coming, realizes the high-precision centering of spindle-less, greatly simplifies centering process, improve the error of centralization and static balance detection
Precision, while by the design of three-jaw supporting construction, drastically increasing the spiral that universal performance adapts to most of different inner diameters
Slurry, is detected simple to operate.
Brief description of the drawings
Fig. 1 is a kind of three-dimensional structure diagram of centreless marine propeller static balancing instrument of the invention；
Fig. 2 is Fig. 1 front view；
Fig. 3 is Fig. 2 top view；
Fig. 4 is the enlarged drawing of Tu2Zhong centerings testing agency 1；
Fig. 5 is the sectional perspective schematic enlarged-scale view of Tu4Zhong centerings testing agency 1；
Fig. 6 is the front view of the amplification of centering adjustment mechanism 2 in Fig. 2；
Fig. 7 is Fig. 6 top view；
Fig. 8 is Fig. 6 lateral partial structurtes sectional view；
Fig. 9 is the assembling structure upward view of the heavily loaded sliding block 21 of supporting plate 21, first and a servomotor 210 in Fig. 8；
Figure 10 is the enlarged front view of three-jaw support member 3 in Fig. 1；
Figure 11 is Figure 10 top view；
Figure 12 is propeller 5 and supporting plate 21 and the location diagram of three-jaw support member 3；
Figure 13 is the enlarged front view of suspension Weighing mechanism 4 in Fig. 2；
Figure 14 is Figure 13 top view；
Figure 15 is the three-dimensional structure diagram of hydraulic floating base 43 in Figure 13；
Figure 16 is the stereochemical structure sectional view that static balancing instrument shown in Fig. 1 is equipped with after propeller.
In figure：1. centering testing agency：2. centering adjustment mechanism：3. three-jaw support member；4. suspension Weighing mechanism：5. spiral
Oar；11. vision imaging device；12. visual imaging support frame；13.L shape slide rails；14. first laser range of triangle instrument；15. rotation
Platform；16. fix sliding block；17. leading screw；18. slide unit motor；19. second laser range of triangle instrument；21. supporting plate；22. first
Heavily loaded sliding block；23. the first heavily loaded guide rail；24. connecting plate；25. the second heavily loaded sliding block；26. the second heavily loaded guide rail；27. I-steel
Frame；28. the second support block；29. No. two servomotors；41. hemispheric bearing；42. the synchronous hydraulic with weighing sensor is very heavy
Top；43. platform hydraulic floating mount；44. with weighing sensor servo-hydraulic jack；45. sealing ring；46. horizon sensor；
120. rotation platform firm banking；121. bearing；No. 210. servomotors；211. first support blocks；212. nut；
213. three-jaw grooves；214. leading screw；
3-1. three-jaws 3；3-2. disc-shaped base；
43-1. hemispherical chamber；43-2.L type support arm；The top surface of 43-3.L type support arms；43-4. oil transportation hole.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of bottom of centreless marine propeller static balancing instrument of the invention is suspension Weighing mechanism
4, suspension Weighing mechanism 4 is installed on ground.The surface of suspension Weighing mechanism 4 is three-jaw support member 3, the bottom of three-jaw support member 3
Suspension Weighing mechanism 4 is vertically fixedly connected with by bolt, the top of three-jaw support member 3 is fixedly connected with centering testing agency 1.Three
The periphery of pawl support member 3 is cased with centering adjustment mechanism 2, and three-jaw support member 3 can extend vertically through centering adjustment mechanism 2 up and down, and centering is adjusted
Complete machine structure 2 is located at the surface of suspension Weighing mechanism 4, and the bottom of centering adjustment mechanism 2 is also supported on suspension Weighing mechanism 4.
Referring to the centering testing agency 1 shown in Fig. 4 and Fig. 5, the top surface middle of centering testing agency 1 is a camera lens shape
Vision imaging device 11, vision imaging device 11 by bolt be arranged on the upper surface middle of visual imaging support frame 12, depending on
Feel that imaging support frame 12 has 4 supporting legs, supporting leg bottom is fixedly supported on the top surface of rotation platform 15 vertically, rotation platform
15 central axis is in ground.The top surface middle of rotation platform 15 is fixed opens on one piece of fixed sliding block 16, fixed sliding block 16
There is horizontal screwed hole.The L-shaped slide rail 13 and screw mandrel of level are set between the top surface of rotation platform 15 and vision imaging device 11
17, screw mandrel 17 is located at the underface of the level board of L-shaped slide rail 13, and parallel with the level board of L-shaped slide rail 13.L-shaped slide rail
A laser triangular distance measuring apparatus is respectively installed at the two ends of 13 level board, is the first laser range of triangle instrument 14 of larger range respectively
With the first laser range of triangle instrument 19 of small amount journey, 19 points of first laser range of triangle instrument 14 and first laser range of triangle instrument
Not Wei Yu the center of rotation platform 15 both sides.One end of screw mandrel 17 is connected by bearing 121 with the vertical panel of L-shaped slide rail 13,
The interlude of screw mandrel 17 passes through the screwed hole of fixed sliding block 16, is closed with corresponding threaded holes, and the other end of screw mandrel 17 is coaxially fixed to be connected
The output shaft of slide unit motor 18 is connect, the housing of slide unit motor 18 is fixed together by bolt with L-shaped slide rail 13.Rotation platform 15
Bottom is arranged on directly over rotation platform firm banking 120, rotation platform firm banking 120 be located at three-jaw support member 3 just on
Side, is fixedly and coaxially connected in the top of three-jaw support member 3.The external diameter of rotation platform firm banking 120 and rotation platform 15 is less than
The external diameter at the top of three-jaw support member 3.The external diameter of centering testing agency 1 is less than the bore inner diameter of propeller.Rotation platform fixes bottom
There is motor that rotation platform 15 can be driven to do 360 degree of rotary motions inside seat 120, while fixed sliding block 16 is also in visual imaging branch
Middle inside 4 support feets of support 12.Slide unit motor 18 is collectively constituted with L-shaped slide rail 13, leading screw 17, fixed sliding block 16
One inverted L-shaped electric sliding rail.When slide unit motor 18 works, leading screw 17 is rotated, and drives slide rail 13, first laser triangle to survey
Distance meter 14 and first laser range of triangle instrument 19 move back and forth, and make first laser range of triangle instrument 14 and first laser range of triangle
The position that instrument 19 rotates against the center of platform 15 changes.
Referring to shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9, the top of centering adjustment mechanism 2 is one piece of square horizontal supporting plate 21,
Supporting plate 21 is used to carry propeller.The middle of supporting plate 21 is provided with the three-jaw groove 213 of hollow out.The side below supporting plate 21
The the first heavily loaded sliding block 22 for having two levels at edge is supported, and two first heavily loaded sliding blocks 22 face each other face arrangement, the first heavy duty
The length of sliding block 22 exceedes the length of side of quadrate support plate 21, and two first heavily loaded sliding blocks 22 are bolted to connection top
Supporting plate 21.The underface of every first heavily loaded sliding block 22 is the heavily loaded guide rail 23 of horizontal first, and the first heavily loaded guide rail 23 is supported
The first heavily loaded sliding block 22, the first heavily loaded sliding block 22 can back and forth slide along the first heavily loaded guide rail 23.
The lower section of two first heavily loaded guide rails 23 is the connecting plate 24 of one piece of square level, two first heavily loaded guide rails 23
It is bolted to connection connecting plate 24.The middle of connecting plate 24 is provided with the manhole of a hollow out, the manhole
Do not interfered with the first heavily loaded edge of guide rail 23, a determining deviation is kept with it.The company of fixation at the lower edge of connecting plate 24
The second heavily loaded sliding block 25 of two levels is connect, the second heavily loaded sliding block 25 of two levels faces each other face arrangement, and this two
Second heavily loaded sliding block 25 is mutually perpendicular to orthogonal, two second heavy duty sliding blocks 25 and two with two first heavily loaded sliding blocks 22 in space
First heavily loaded sliding block 22 is distributed on space plane in " well " font.The underface of every second heavily loaded sliding block 25 is a level
The second heavily loaded guide rail 26, the second heavily loaded guide rail 26 supports the second heavily loaded sliding block 25, and the second heavily loaded sliding block 25 can be along the second weight
Guide rail 26 is carried to slide back and forth.
It is first support block 211 immediately below each second heavily loaded guide rail 26, each second heavily loaded guide rail 26 passes through
Bolt is fixedly connected with the first support block 211 immediately below it.It is second support block 28 immediately below each first support block 211,
Each first support block 211 is bolted to connection the second support block 28 immediately below it.In two the second support blocks 28
Between be connected to a fixed with i-beam frame 27, i-beam frame 27 be in groined type frame structure.
Centre position by the side of connecting plate 24 is installed by a number servomotor 210, the output of a servomotor 210
Axle is parallel with the glide direction of the first heavily loaded sliding block 22.The coaxially connected leading screw 214 of output shaft of a number servomotor 210, silk
Thick stick 214 matches with nut 212 is combined into screw-nut body, and nut 212 is bolted to connection supporting plate 21.A number servo
When motor 210 works, nut 212 is driven to move by leading screw 214, nut 212 drives [W1].
No. two servomotors 29 are installed in centre position by the side of i-beam frame 27, the output shaft of No. two servomotors 29 and
The glide direction of second heavily loaded sliding block 25 is identical, the output shaft of No. two servomotors 29 and the output shaft of a servomotor 210
It is orthogonal in spatial vertical.Less than No. one servomotor 210 of the height of No. two servomotors 29, No. two servomotors 29 pass through leading screw
Nut body is fixedly connected with connecting plate 24, the second heavily loaded edge of sliding block 25 for driving connecting plate 24 and being fixedly connected with connecting plate 24
The glide direction of second rail plate 26 slides.The leading screw of screw-nut body will not stretch into the middle manhole of connecting plate 24
In, it is to avoid with being interfered through the three-jaw support 3 in the middle manhole of connecting plate 24 when screw-nut body works.
Three-jaw support member 3 as shown in Figure 10 and Figure 11, three-jaw support member 3 is by the disc-shaped base 3-2 of lower semisection and upper
Half section of three-jaw 3-1 compositions.The disc-shaped base 3-2 of lower semisection external diameter is less than the circle that the middle of connecting plate 24 is provided with
The internal diameter of through hole, enables the lower semisection insertion centering adjustment mechanism 2, and extend downwardly from support from top to bottom of three-jaw support member 3
In suspension testing agency 4.
Propeller shown in Figure 12 and the supporting plate 21 of centering adjustment mechanism 2 and the position point of three-jaw support member 3
Three-jaw groove 213 in cloth relation, supporting plate 21 is centrally located at the center of supporting plate 21.The three-jaw 3-1 energy of three-jaw support member 3
It is enclosed in three-jaw groove 213, after packaging, the side wall of three-jaw groove 213 has minimum clearance A, minimum clearance A with three-jaw 3-1 sides wall
More than 10cm.After supporting plate 21 is translated with respect to three-jaw support member 3, supporting plate 21 does not interfere collision with propeller.
Referring to the suspension Weighing mechanism 4 shown in Figure 13 and Figure 14, the bottom of suspension Weighing mechanism 4 is mounted on ground
Hydraulic floating base 43, in conjunction with Figure 15, generally one casting of platform hydraulic floating mount 43, middle is one hemispherical
It is a hemisphere face that chamber 43-1, hemispherical chamber 43-1 bottom, which are provided with directly over oil transportation hole 43-4, hemispherical chamber 43-1,
Bearing 41, hemispheric bearing 41 matches with hemispherical chamber 43-1.Inlayed between hemispheric bearing 41 and hemispherical chamber 43-1
Embedding sealing ring 45, makes to form closed cavity between hemispheric bearing 41 and hemispherical chamber 43-1.The top surface of hemispheric bearing 41
Edge is installed by horizon sensor 46.The top surface of hemispheric bearing 41 is located at the underface of three-jaw support member 3, is bolted
Connect and support three-jaw support member 3, that is, the disc-shaped base 3-2 of the lower semisection of three-jaw support member 3 is contacted in hemisphere face axle
Hold on 41 top surface.
Hemispherical chamber 43-1 is extended with 2 groups of centrosymmetric L-type support arm 43- of opposite hemispheres shape chamber 43-1 to surrounding
2,4 synchronous hydra-ulic jacks 42,4 with weighing sensor are installed on L-type support arm 43-2 top surface 43-3 and carried
The synchronous hydra-ulic jacks 42 of weighing sensor are arranged symmetrically two-by-two relative to hemispherical chamber 43-1 center.With biography of weighing
It is the second support block 28 directly over the top surfaces of the synchronous hydra-ulic jacks 42 of sensor, supports the of the bottom of centering adjustment mechanism 2
Two support blocks 28, two top surfaces of synchronous hydra-ulic jacks 4 with weighing sensor of the same side support one second support
Block 28, the lines of centres of two of the same side synchronous hydra-ulic jacks 4 with weighing sensor is into 60 degree of angles.When synchronous liquid
The energy of jack 42 the second support block of jack-up 28 upwards is pressed, drives centering adjustment mechanism 2 is overall to vertically move upwards.
In uniform 3 servo-hydraulic jack 44 with weighing sensor of L-type support arm 43-2 surrounding, servo-hydraulic thousand
Jin top 44 is located at below the top edge of hemispheric bearing 41, can jack-up hemispheric bearing 41 upwards.
Referring to Figure 16, when static balance is detected, garter coil oar 5 from the top down, propeller 5 is moved down, and is enclosed on centering inspection
Survey outside mechanism 1, centering testing agency 1 is integrally located in the endoporus of propeller 5, and the bottom of propeller 5 is placed on supporting plate 21
On, supporting plate 21 carries propeller 5.
The three-jaw 3-1 coaxial sleeves of the upper semisection of three-jaw support member 3 are in the three-jaw groove 213 of supporting plate 21, and three-jaw
3-1 upper surface is less than the upper surface of supporting plate 21, three-jaw support member 3 is not contacted with propeller 5.
Three-jaw support member 3 extends vertically through the surface for being located at suspension testing agency 4 after centering adjustment mechanism 2, three-jaw support
The disc-shaped base 3-2 of part 3 runs through the central coaxial with the hemispheric bearing 41 of suspension testing agency 4 after connecting plate 24, and
Three-jaw support member 3 and hemispheric bearing 41 are linked together by bolt.
Referring to Fig. 1-16, during centreless marine propeller static balancing instrument static balance detection of the present invention, by three-jaw support member 3
The heart is set as demarcating center.It is then slow to transfer spiral shell first by the suspended mobile of propeller 5 to the top of centering testing agency 1
Revolve oar 5.Centering testing agency 1 works, and the camera lens of vision imaging device 11 constantly shoots its inside during propeller 5 declines
The position of cone-shaped inner hole, and be the center of vision imaging device 11 with respect to the center of centering testing agency 1 by the endoporus center of propeller 5
Deviation feed back in host computer, host computer according to the deviation of position control driving translation, realize the first time error of centralization
Detection and adjustment, reach preliminary coarse positioning.The precision of preliminary coarse positioning can be calculated according to the precision of vision imaging device 11
It can reach10cm scopes, this can just be avoided the position that propeller 5 declines from having larger error with setting position, while
Avoid that when declining centering testing agency 1 can be collided.
After coarse positioning, then decline propeller 5, propeller 5 is enclosed on outside centering testing agency 1, and be supported on branch
On fagging 21.Now rotation platform 15 is rotated, while slide unit motor 18 works, drives the rotary motion of leading screw 17, fixed sliding block 16
Only rotate but do not translate with rotation platform 15, two laser triangular distance measuring apparatus 14,19 that L-shaped slide rail 13 is carried rotate against flat
The center of platform 15 horizontal movement back and forth, two laser triangular distance measuring apparatus 14,19 can strengthen the versatility of centering detection, make it can be with
Flexibility adjustment, because the diameter of bore of propeller 5 has 500mm-1000mm constant interval, the first laser triangle of wide range is surveyed
Effective surveying range of the first laser range of triangle instrument 19 of distance meter 14 and small-range is all restricted, in order to ensure propeller 5
Inner hole wall in effective measurement distance, passes through the laser triangulation of the carrying of L-shaped slide rail 13 with laser triangular distance measuring apparatus 14,19
The mobile of instrument 14,19 can reduce measurement distance, realize high-acruracy survey.Slide unit motor 18 is rotated forward during measurement, and L-shaped slide rail 13 is taken
The laser triangular distance measuring apparatus 14 for carrying larger range is reached in range ability, and rotation platform 15 is rotated by 360 °, laser triangulation
Instrument 14 can be rotated a circle measurement, and the offset at the endoporus center relative Calibration center of the propeller 5 of measurement is fed back into upper
Machine.Host computer controls No. two servomotors 29 and a servomotor 210 to work according to offset, and No. two servomotors 29 pass through
Leading screw and nut mechanism drives the second heavily loaded sliding block 25 and connecting plate 24 to be translated along the second heavily loaded guide rail 26, a servomotor
210 drive the first heavily loaded sliding block 22 and supporting plate 21 to carry out first along the first heavily loaded guide rail 23 by screw-nut body translates.
When second heavily loaded sliding block 25 is moved, the first heavily loaded sliding block 22 follows the second heavily loaded sliding block 25 to move, work of the propeller 5 in frictional force
Moved together with supporting plate 21 with lower, the first time fine positioning of propeller 5 is completed by such motion synthesis.Then slide unit is electric
Machine 18 is inverted, and the laser triangular distance measuring apparatus 19 of the small amount journey of the carrying of L-shaped slide rail 13 is reached in its range ability, rotary flat
Platform 15 is rotated by 360 °, and laser triangular distance measuring apparatus 19 can rotate a circle measurement, by the skew at the endoporus center of propeller 5 of measurement
Amount feeds back to host computer, and host computer controls No. two servomotors 29 and a servomotor 210 to work according to offset, and No. two are watched
Taking motor 29 drives connecting plate 24 to be translated along the second heavily loaded guide rail 26, and a drive supporting plate 21 of servomotor 210 is along the
One heavily loaded guide rail 23 carries out first and translated, and second of fine positioning of propeller 5 is completed by moving synthesis.Machine is adjusted by centering
Structure 2 is finely tuned twice, can finally realize that the eccentric error at the center of propeller 5 and demarcation center is less than 8M, realizes high accuracy
To neutralizing adjustment.
When propeller 5 is placed into supporting plate 21, its center is difficult to be properly placed on calibration position, in propeller 5
The heart and demarcation center are that the offset error of the center maximum of three-jaw support member 3 reaches 10cm, so centering adjustment mechanism 2
The offset distance that relative Calibration center need to be adjusted is less than 10cm, because the setting side wall of three-jaw groove 213 is deposited with three-jaw 3-1 sides wall
Be more than 10cm in minimum clearance A, so as to carry out during fine positioning supporting plate 21 carry propeller 5 be finely adjusted without with three-jaw groove
213 inward flanges interfere collision.
The upper table of supporting plate 21 is higher than the upper surface of three-jaw support member 3, and now 4 bands in suspension Weighing mechanism 4 are weighed biography
The synchronous hydra-ulic jacks 42 of sensor work, the vertical downward movement of synchronous hydra-ulic jacks 42, so as to drive centering adjustment mechanism 2
Synchronous vertical declines, and declines the supporting plate 21 of centering adjustment mechanism 2, propeller 5 also declines, until the upper surface of supporting plate 21 is low
In the upper surface of three-jaw support member 3, the upper surface of three-jaw support member 3 is stretched out above the upper surface of supporting plate 21, the bottom surface of propeller 5 with
The upper end face of three-jaw support member 3 is contacted and is carried by it, and now propeller 5 is departing from the supporting plate 21 of centering adjustment mechanism 2
4 synchronous hydra-ulic jacks 42 with weighing sensor in support, suspension Weighing mechanism 4 are stopped.
Propeller 5 is after three-jaw support member 3 completely carrying, by hydraulic oil from the bottom hydraulic pressure of platform hydraulic floating mount 43
Inputted in oilhole 43-4, after sealing cavity of the hydraulic oil full of the bottom of hydraulic floating base 43 by hemispheric bearing 41 vertically upward
Suspend, hemispheric bearing 41 is separated with hemispherical chamber 43-1.
Three-jaw support member 3 directly over the connection of hemispheric bearing 41, three-jaw support member 3 supports propeller 5.Due to spiral
It is uneven to there is quality in the blade of oar 5, can cause the run-off the straight of three-jaw support member 3, drives the run-off the straight of hemispheric bearing 41.This
When, the horizon sensor 46 on hemispheric bearing 41 measures the tilt quantity of hemispheric bearing 41, and tilt quantity is fed back
Into host computer, servo-hydraulic jack 44 of the PC control 3 with weighing sensor works, and 3 with weighing sensor
Servo-hydraulic jack 44 stretches out vertically upward, and its top contacts the top edge of hemispheric bearing 41 and held upwards after stretching
Hemispheric bearing 41 is carried, the tilt quantity of hemispheric bearing 41 is adjusted, until the feedback signal of horizon sensor 46 detects hemisphere face
Untill bearing 41 is in horizontality, the static balance detection of propeller 5 is completed.Meanwhile, in collection servo-hydraulic jack 44
The carrying information of sensor, is analyzed and processed, and can determine that pledge deviator position.
Claims (8)
1. a kind of centreless marine propeller static balancing instrument, bottom is suspension Weighing mechanism（4）, it is characterized in that：Suspension Weighing mechanism
（4）Three-jaw support member directly over being fixedly connected（3）Bottom, three-jaw support member（3）Top is fixedly connected with centering testing agency
（1）, three-jaw support member（3）It is cased with centering adjustment mechanism outside（2）, three-jaw support member（3）Centering adjustment mechanism is extended vertically through up and down
2, three-jaw support member（3）Upper surface be less than centering adjustment mechanism（2）Upper surface, centering adjustment mechanism（2）Claim positioned at suspending
Heavy-duty machine structure（4）Surface, centering adjustment mechanism（2）Bottom be supported on suspension Weighing mechanism（4）On.
2. a kind of centreless marine propeller static balancing instrument according to claim 1, it is characterized in that：Centering adjustment mechanism（20
Top is that one piece of middle is provided with hollow out three-jaw groove（213）Square horizontal supporting plate（21）, supporting plate（210 lower sections side
The first heavily loaded sliding block of two levels arranged face-to-face is fixedly connected with edge（220, every first heavily loaded sliding block（22）Just under
Side is the heavily loaded guide rail of horizontal first（23）；Two first heavily loaded guide rails（23）Lower section is fixedly connected with the company of one piece of square level
Fishplate bar（24）, connecting plate（24）Middle be provided with the manhole of a hollow out, connecting plate（24）Lower edge at fix
Connection faces each other the second heavily loaded sliding block of two levels in face（25）, the second heavily loaded sliding block（25）With the first heavily loaded sliding block（22）
In orthogonal space, every second heavily loaded sliding block（25）Underface be level the second heavily loaded guide rail（26）；Each second
Heavily loaded guide rail（26）The first support block of underface one（211）It is fixedly connected with second support block（28）；A number servo electricity
Machine（210）Output shaft be fixedly connected with supporting plate through first screw-nut body（21）, No. two servomotors（29）Output
Axle is fixedly connected with connecting plate through second screw-nut body（24）, No. two servomotors（29）Output shaft and a servo electricity
Machine（210）Output shaft in orthogonal space.
3. a kind of centreless marine propeller static balancing instrument according to claim 2, it is characterized in that：Three-jaw support member（3）By
The disc-shaped base of lower semisection（3-2）With the three-jaw of upper semisection（3-1）Composition, three-jaw（3-1）It is enclosed on three-jaw groove（213）In,
Disc-shaped base（3-2）External diameter be less than connecting plate（24）The internal diameter for the manhole that middle is provided with.
4. a kind of centreless marine propeller static balancing instrument according to claim 3, it is characterized in that：Suspension Weighing mechanism（4）
Bottom be hydraulic floating base（43）, platform hydraulic floating mount（43）Middle is a hemispherical chamber（43-1）, half
Spherical chamber（43-1）Bottom is provided with oil transportation hole（43-4）, hemispherical chamber（43-1）Surface is the hemisphere face matched with it
Bearing（41）, hemispheric bearing（41）The edge of top surface is equipped with horizon sensor（46）；Hemispheric bearing（41）Top surface is located at
Three-jaw support member（3）Underface and be fixedly connected with three-jaw support member（3）；Hemispherical chamber（43-1）2 groups are extended with to surrounding
Opposite hemispheres shape chamber（43-1）Centrosymmetric L-type support arm（43-2）, in L-type support arm（43-2）Top surface on be equipped with phase
For hemispherical chamber（43-1）The synchronous hydra-ulic jacks that carry weighing sensor of center be arranged symmetrically two-by-two 4
（42）, synchronous hydra-ulic jacks（42）Top surface directly over support the second support block（28）；L-type support arm（43-2）Surrounding it is equal
Servo-hydraulic jack of the cloth 3 with weighing sensor（44）, servo-hydraulic jack（44）Positioned at hemispheric bearing（41）'s
Below top edge.
5. a kind of centreless marine propeller static balancing instrument according to claim 4, it is characterized in that：Centering testing agency（1）
Top surface middle is vision imaging device（11）, vision imaging device（11）It is fixedly connected with visual imaging support frame（12）Upper surface
Middle, visual imaging support frame（12）Bottom is fixedly connected with rotation platform（15）Top surface, rotation platform（15）Top surface middle
One piece of fixed sliding block is fixedly installed（16）, rotation platform（15）Top surface and vision imaging device（11）Between set level L-shaped
Slide rail（13）And screw mandrel（17）, screw mandrel（17）Positioned at L-shaped slide rail（13）Level board underface, L-shaped slide rail（13）Level
The two ends of plate are respectively provided with a laser triangular distance measuring apparatus, screw mandrel（17）One end passes through bearing（121）With L-shaped slide rail（13）It is vertical
Plate is connected, screw mandrel（17）Interlude pass through fixed sliding block（16）Screwed hole, screw mandrel（17）The other end coaxially fixed connect
Connect slide unit motor（18）Output shaft, slide unit motor（18）Housing and L-shaped slide rail（13）It is fixedly connected；Rotation platform（15）Bottom
The rotated platform firm banking in portion（120）It is fixedly and coaxially connected three-jaw support member（3）Top.
6. a kind of static balance detection method of centreless marine propeller static balancing instrument as claimed in claim 5, it is characterized in that bag
Include following steps：
A, by propeller suspended mobile to centering testing agency（1）Top, centering testing agency（1）Work, by propeller
Endoporus center is with respect to centering testing agency（1）The deviation at center feed back to host computer, host computer controls spiral shell according to deviation
Oar translation is revolved, to propeller coarse positioning；
B, decline propeller, make propeller be enclosed on centering testing agency（1）It is outer and be supported on supporting plate（21）On, centering detection machine
Structure（1）The endoporus center of propeller is measured with respect to three-jaw support member（3）The offset at center, and feed back to host computer, host computer
No. two servomotors are controlled according to offset（29）With a servomotor（210）Work, to propeller fine positioning；
C, the synchronous hydra-ulic jacks with weighing sensor（42）Vertical downward movement, drives centering adjustment mechanism（2）It is synchronous to hang down
It is straight to decline, make supporting plate（21）Upper surface is less than three-jaw support member（3）Upper surface, propeller is by three-jaw support member（3）Carrying；
D, by hydraulic oil from hydraulic pressure oilhole（43-4）Middle injection, hemispheric bearing（41）Suspend vertically upward, horizon sensor
（46）Measure hemispheric bearing（41）Tilt quantity and feed back to host computer, servo-hydraulic of the PC control with weighing sensor
Jack（44）Stretch out vertically upward, carry hemispheric bearing（41）And adjust hemispheric bearing（41）Tilt quantity, Zhi Daoshui
Sensor（46）Detect hemispheric bearing（41）Untill horizontality.
7. the static balance detection method of centreless marine propeller static balancing instrument according to claim 6, it is characterized in that：Step
In B, slide unit motor（18）Rotate forward, the first laser range of triangle instrument of larger range（14）Reach in range ability, rotary flat
Platform（15）It is rotated by 360 °, first laser range of triangle instrument（14）By the endoporus center of the propeller of measurement with respect to three-jaw support member
（3）The offset at center feeds back to host computer, No. two servomotors of PC control（29）With a servomotor（210）Work
Make, complete the first time fine positioning of propeller；Slide unit motor（18）Reversion, the second laser range of triangle instrument of small amount journey（19）
Reach in its range ability, rotation platform（15）It is rotated by 360 °, second laser range of triangle instrument（19）By the propeller of measurement
Endoporus center is with respect to three-jaw support member（3）The offset at center feeds back to host computer, No. two servomotors of PC control（29）
With a servomotor（210）Work, completes second of fine positioning of propeller.
8. the static balance detection method of centreless marine propeller static balancing instrument according to claim 6, it is characterized in that：Step
In A, vision imaging device（11）The position of its endoporus during propeller declines constantly is shot, and by propeller inner hole center phase
To vision imaging device（11）The deviation at center feeds back to host computer.
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| CN109870398A (en) * | 2019-04-02 | 2019-06-11 | 中国有色金属工业第十四冶金建设公司 | Infiltration experiment system |
| CN113848016A (en) * | 2021-09-14 | 2021-12-28 | 武汉重工铸锻有限责任公司 | Flywheel static balance detection and weight removal method and flywheel static balance detection device |
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