CN103335582B - Large-scale propeller pitch measuring instrument - Google Patents
Large-scale propeller pitch measuring instrument Download PDFInfo
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- CN103335582B CN103335582B CN201310251249.5A CN201310251249A CN103335582B CN 103335582 B CN103335582 B CN 103335582B CN 201310251249 A CN201310251249 A CN 201310251249A CN 103335582 B CN103335582 B CN 103335582B
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- crossfoot
- pitchometer
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- propeller
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Abstract
The invention discloses a large-scale propeller pitch measuring instrument which comprises a claw disc, a base, a long rod shaped transverse ruler and a long rod shaped vertical ruler, wherein the claw disc is fixed with the taper hole of the propeller; the base comprises a lower end surface connected with the claw disc, an upper end surface parallel to the lower surface, and a support for connecting the upper end surface and the lower end surface, wherein a rotary table is arranged on the upper end surface, and the rotary table is provided with a fixing bracket; scales are arranged on the long rod shaped transverse ruler, and the long rod shaped transverse ruler is fixed on the rotary table through the fixing bracket; the long rod shaped vertical ruler is provided with scales and fixed on the transverse ruler through a fixing part, and is perpendicular to the transverse ruler. The large-scale propeller pitch measuring instrument provided by the invention adopts a split-type assembly structure, the using method is simple, only one operator is required to finish mounting within minutes, a huge amount of physical resource and time are saved, meanwhile, the centering accuracy is improved greatly, and an excellent effect is obtained.
Description
Technical field
The present invention relates to measuring technique, especially for the large-size propeller pitchometer of large-size propeller.
Background technology
Propeller for vessels is one of important component part of ship power propulsion system.Its working condition directly has influence on the operation cost of boats and ships.Under nominal situation, when blade rubs with water in water, blade surface can produce a small amount of bubble.It can be inevitable to blade generation cavitation corrosion and frictional dissipation that bubble breaks under subnormal ambient.Its loss position is mainly present in screw propeller guide margin, and wearing and tearing with the guide margin beyond 0.7R is again very.Consequently blade limit is thinning gradually, and blade effective active area reduces gradually, and screw propeller deadweight alleviates gradually, causes z-type propulsion unbalance, and propulsive efficiency reduces, and oil consumption increases, degradation problem under the speed of a ship or plane.
Non-working condition is namely when average, due to reasons such as impacting, collide, be stranded, propeller blade produces the uneven averages such as crimping, distortion, cracking, fracture, make its static equilibrium unbalance, the vibrations aggravation of axle system, bearing wear increases, and even can cause axis disalignment time serious, boats and ships cannot normal/cruise.
Therefore, when dockage is repaired, the operating mode inspection of screw propeller is also the main project in numerous items of repair job.The important parameter weighing screw propeller operating mode is exactly---screw propeller geometrical mean pitch.Meanwhile airscrew pitch measures the length that cycle of correcting with blade profile and quality directly have influence on the depressed place phase, links directly with the company output value.
At present, in market of ship, screw propeller is repaired to the thread indicator used, because volume is large, transport is inconvenient, with high costs, and the scope regulated is little, and the manufacturer being only applicable to batch production uses, and the applicability for shiprepair is just not ideal enough.And the pitchometer of at present shiprepair is due to reasons such as frequency of utilization are higher, tenure of use is longer, there is the shortcomings such as the comparatively large and large rotation of volume and weight of measuring error is dumb.
Summary of the invention
Object of the present invention, overcomes the deficiencies in the prior art exactly, provides the large-size propeller pitchometer that a kind of cost is low, structure is simple, volume is little, easy and simple to handle, precision is higher, applied widely.
In order to achieve the above object, following technical scheme is adopted:
A kind of large-size propeller pitchometer, comprises
Pawl dish, the taper hole of itself and screw propeller is fixed;
Pedestal, it comprises the support of the lower surface connecting pawl dish, the upper surface parallel with lower surface, connection upper surface and lower surface, and described upper surface is provided with a rotating disk, and described rotating disk is provided with fixed mount;
The crossfoot of elongated rod shape, it is carved with range, is fixed on rotating disk by described fixed mount;
The perpendicular chi of elongated rod shape, it is carved with range, is fixed on crossfoot by a fixture, and vertical with crossfoot.
Further, described upper surface and rotating disk are circular ring structure, and described upper surface is provided with the angle dial mated with rotating disk, and described rotating disk is provided with the pointer of orientation angle index dial.
Further, described fixed mount comprises the first fixed mount supplying crossfoot to run through and the second fixed mount that arrange along upper surface diametric(al), and described crossfoot is conflicted fixing by the adjusting bolt being separately positioned on the first fixed mount and the second fixed mount.
Further, described two also comprise a pressing plate between adjusting bolt and crossfoot.
Further, described adjusting bolt is fixedly connected with pressing plate, and pressing plate and crossfoot are flexibly connected.
Further, described pressing plate is provided with the center line overlapped with disk axes.
Further, scriber is provided with bottom described perpendicular chi.
Further, described crossfoot is rectangular structure.
Further, described fixture comprises the first clamping part of clamping crossfoot and the second clamping part of the perpendicular chi of clamping, the perpendicular chi that crossfoot and second clamping part of described first clamping part clamping clamp is mutually vertical, described second clamping part comprises the duct of running through fixture and penetrates the bolt that fixture side is connected to duct, and described first clamping part is included in fixture side and forms the recess that holds crossfoot and move the adjusting portion regulating recess size along the screw thread of fixture.
Further, described duct comprises the first duct running through fixture and the second duct running through crossfoot Width, the scale initial point of described crossfoot and the axial alignment in the second duct.
Compared with prior art, beneficial effect of the present invention is:
The present invention adopts separable assembled structure, and compact conformation, cost be low, the screw propeller that can be applied in sizes, the Special measuring instrument that the producer relatively producing screw propeller uses have cost low, take the advantages such as volume is little, suitable for multiple sizes screw propeller.
Using method of the present invention is simple, only need operating personnel just can complete installation within a few minutes, avoid in installation process many people coordinate beat pedestal in tune fixed in problem, save a large amount of manpower and materials and time, degree of accuracy in simultaneously determining improves greatly, achieves good effect.
Accompanying drawing explanation
Fig. 1 is the structural representation that airscrew pitch measuring instrument of the present invention is arranged on screw propeller;
Fig. 2 is the structural representation of airscrew pitch measuring instrument of the present invention;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the structural representation of fixture;
Diagram: 1-screw propeller; 11-blade; 2-pawl dish; 3-pedestal; 31-lower surface; 32-support; 33-upper surface; 331-angle dial; 34-rotating disk; 341-pointer; 35-fixed mount; 36-adjusting bolt; 4-crossfoot; 5-perpendicular chi; 6-fixture; 61-duct; 62-bolt; 63-recess; 64-adjusting portion; 7-pressing plate.
Embodiment
Below in conjunction with specific embodiment, the present invention will be further described:
As described in Figure 1, airscrew pitch measuring instrument of the present invention comprises the crossfoot 4 of pawl dish 2, pedestal 3, elongated rod shape, the perpendicular chi 5 of elongated rod shape.Its median claw dish 2 is fixed by the taper hole of its claw and screw propeller 1.Pawl dish 2 is three-jaw self-centering chucks, and the structure of claw is step.It has used existing lathe chuck technology, and according to requirements three-jaw length and height and plane link position etc. are optimized repacking, the three-jaw of chuck is made to increase the length of every layer of step, increase the quantity of step, to be applicable to the screw propeller of larger diameter.
As shown in Figures 2 and 3, pedestal 3 comprises lower surface 31, the upper surface 33 parallel with lower surface 31, connects the support 32 of upper surface 33 and lower surface 31.The lower surface 31 of pedestal 3 is fixed by bolt and pawl dish 2, and upper surface 33 is provided with a rotating disk 34.Rotating disk 34 and upper surface 33 are annular concentric structures.Wherein the area ratio rotating disk 34 of upper surface 33 is large, and rotating disk 34 is positioned at the top of upper surface 33.Rotating disk 34 is connected with upper surface 33 by bearing.Upper surface 33 is provided with the angle dial 331 mated with rotating disk 34.Angle dial 331 can be arranged in the inner ring of the upper surface 33 of annular, also can be arranged on the outer shroud of upper surface 33.Angle dial 331 can be dismountable structure, also can be fixedly installed on upper surface 33.Rotating disk 34 is provided with the pointer 341 of orientation angle index dial 331.Rotating disk 34 is also provided with the fixed mount 35 of frame-shaped construction.Fixed mount 35 comprises two, is separately positioned on the two ends along rotating disk 34 diameter.Crossfoot 4 can be fixed by fixed mount 35.Crossfoot 4 is elongated rod shape, and it is carved with range.Crossfoot 4 adopts 304 stainless steel materials to be made, have stiffness high, from advantages such as heavy and lights.Being horizontally disposed with of crossfoot 4 can be ensured by two fixed mounts 35.Each fixed mount 35 is also provided with adjusting bolt 36.To be conflicted with crossfoot 4 by adjusting bolt 36 or be separated, by fixing for crossfoot 4 or adjusting position.Conveniently fix, crossfoot 4 is rectangular structure.Coordinate the fixed mount 35 of shaped as frame, fixed effect is better.In addition, be also provided with a pressing plate 7, increase stress surface by pressing plate 7 between adjusting bolt 36 and crossfoot 4, prevent the direct acting High Voltage due to adjusting bolt 36 pairs of crossfoots 4 from causing the distortion of crossfoot 4, accuracy is measured in impact.In addition, pressing plate 7 also can play the effect in determining.Because fixed mount 35 is symmetrical, arrange pressing plate 7 two ends and just flush with fixed mount 35 two ends, the mid point of pressing plate 7 is exactly fix midway point.As preferably, pressing plate 7 is be fixedly connected with adjusting bolt 36, and pressing plate 7 and crossfoot 4 are adjustment according to adjusting bolt 36 and corrective action power.When to adjust two adjusting bolts 36 simultaneously, pressing plate 7 can apply acting force equably on crossfoot 4, makes crossfoot 4 and rotating disk 34 fit closer.The central point of the pressing plate 7 between two adjusting bolts 36, is provided with center line, the position of center line and the axis coinciding of rotating disk.The length that this center line is measured for recording crossfoot.
In Fig. 1, be provided with the perpendicular chi 5 of elongated rod shape at the other end of crossfoot 4.Perpendicular chi 5 is carved with range, is fixed by fixture 6 and crossfoot 4.The structure of fixture 6 ensures that crossfoot is vertical with perpendicular chi, increases the accuracy measured.Because perpendicular chi 5 needs the blade 11 directly contacting screw propeller 1, Long-Time Service can produce wearing and tearing, is provided with scriber 51 in the bottom of perpendicular chi 5.Contact with screw propeller 1 when scriber 51 is for measuring pitch height, and also will mark radian on blade 11 surface of screw propeller 1 when degree of making an arc, therefore scriber 51 adopts alloy to make, with the good hardness reached and abrasion resistance.In addition, scriber can be changed, and prevents the problem that the measuring accuracy caused due to long-term wearing and tearing reduces.
As shown in Figure 4, fixture 6 is column structure, and it comprises the first clamping part of clamping crossfoot 4 and the second clamping part of the perpendicular chi 5 of clamping.Second clamping part comprises along the high duct 61 running through fixture 6 of post and the bolt 62 penetrated from fixture side to duct 61.Perpendicular chi 5 is fixed by bolt 62 and fixture 6 through duct 61.The elasticity of adjustment bolt 62, can regulate the displacement of perpendicular chi 5 in duct 61.First clamping part is included in fixture side and forms the recess 63 holding crossfoot 4 and the adjusting portion 64 moving adjustment recess 63 size along the screw thread of fixture 6.Recess 63 and crossfoot 4 form fit.Adjusting portion 64 is set on the columned fixture 6 by screw thread, utilizes screw thread to be fixed on fixture 6 by crossfoot 4 by adjusting portion 64, makes crossfoot 4 mutually vertical with perpendicular chi 5, guarantees the data precision measured.Adjusting portion 64 comprises the nut be enclosed within fixture 6 screw thread, or has the bolt of through hole.Bolt is conflicted through the internal thread duct of the second clamping part and crossfoot 4.As preferably, crossfoot 4 runs through a duct in the width direction, and this duct is identical with the opening cross-sectional face of fixture, perpendicular chi 5 part is through the duct of fixture, a part through the duct of crossfoot, and with the axis in the duct of crossfoot for scale initial point, mark this scale initial point on the surface of crossfoot.Because crossfoot is vertical with perpendicular chi, can read in the position of the corresponding crossfoot of the center line of pressing plate 7 value needing measurement point distance disk axes.
The installation method of this measuring instrument is as follows:
1, fixing screw propeller, makes the taper hole of screw propeller upwards, and keeps screw propeller horizontal equilibrium.
In this step, fixed by screw propeller by stationary installation, the taper hole aperture of screw propeller is vertical with ground level, opening upwards, screw propeller rough balance.Simply, by visual each blade can observing screw propeller whether rough balance.Screw propeller rough balance is kept to be convenient to follow-up Installation and Measurement.
2, by the claw of pawl dish and the taper hole clamping of screw propeller, pawl dish is fixed on screw propeller.
Select suitable scroll chuck according to screw propeller taper hole diameter, by the claw of pawl dish and the taper hole clamping of screw propeller, and whether coincidence loss specifies by the fixed middle effect of measurement slide calliper rule inspection.
3, pedestal is fixedly mounted on pawl dish.
Its flexible rotating within the scope of 360 degree guaranteed by the rotating disk of test rotating basis, and checks pedestal installs whether meet requirement for horizontality with surveyor's staff.
4, crossfoot is put into fixed mount, by fixture, perpendicular chi is fixed on the crossfoot other end, keep perpendicular chi vertical ground, and lock adjusting bolt, keep the level of crossfoot.
Crossfoot penetrates in two fixed mounts of rotating disk, places pressing plate, locked by adjusting bolt between crossfoot and adjusting bolt.When giving prominence to fixed mount certain distance respectively in one end of crossfoot, after fixing with firm screw, install perpendicular chi, unclamp the screw between perpendicular chi and crossfoot, scriber contact paddle, rotates crossfoot, perpendicular chi reads pitch numerical value.
The foregoing is only the preferred embodiment explaining the present invention, not any restriction is in form done to the present invention.Any modification of all relevant the present invention that does under identical invention spirit or change, all must be included in the category that the invention is intended to protection.
Claims (10)
1. a large-size propeller pitchometer, is characterized in that: comprise
Pawl dish, the taper hole of itself and screw propeller is fixed;
Pedestal, it comprises the support of the lower surface connecting pawl dish, the upper surface parallel with lower surface, connection upper surface and lower surface, and described upper surface is provided with a rotating disk, and described rotating disk is provided with fixed mount;
The crossfoot of elongated rod shape, it is carved with range, is fixed on rotating disk by described fixed mount;
The perpendicular chi of elongated rod shape, it is carved with range, is fixed on crossfoot by a fixture, and vertical with crossfoot.
2. large-size propeller pitchometer according to claim 1, is characterized in that: described upper surface and rotating disk are annular concentric structure, and described upper surface is provided with the angle dial mated with rotating disk, and described rotating disk is provided with the pointer of orientation angle index dial.
3. large-size propeller pitchometer according to claim 1, it is characterized in that: described fixed mount comprises the first fixed mount supplying crossfoot to run through and the second fixed mount that arrange along upper surface diametric(al), and described crossfoot is conflicted fixing by the adjusting bolt being separately positioned on the first fixed mount and the second fixed mount.
4. large-size propeller pitchometer according to claim 3, is characterized in that: described two also comprise a pressing plate between adjusting bolt and crossfoot.
5. large-size propeller pitchometer according to claim 4, is characterized in that: described adjusting bolt is fixedly connected with pressing plate, and pressing plate and crossfoot are flexibly connected.
6. large-size propeller pitchometer according to claim 5, is characterized in that: described pressing plate is provided with the center line overlapped with disk axes.
7. large-size propeller pitchometer according to claim 1, is characterized in that: be provided with scriber bottom described perpendicular chi.
8. large-size propeller pitchometer according to claim 1, is characterized in that: described crossfoot is rectangular structure.
9. large-size propeller pitchometer according to claim 1, it is characterized in that: described fixture comprises the first clamping part of clamping crossfoot and the second clamping part of the perpendicular chi of clamping, the perpendicular chi that crossfoot and second clamping part of described first clamping part clamping clamp is mutually vertical, described second clamping part comprises the duct of running through fixture and penetrates the bolt that fixture side is connected to duct, and described first clamping part is included in fixture side and forms the recess that holds crossfoot and move the adjusting portion regulating recess size along the screw thread of fixture.
10. large-size propeller pitchometer according to claim 9, is characterized in that: described duct comprises the first duct running through fixture and the second duct running through crossfoot Width, the scale initial point of described crossfoot and the axial alignment in the second duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251249.5A CN103335582B (en) | 2013-06-21 | 2013-06-21 | Large-scale propeller pitch measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251249.5A CN103335582B (en) | 2013-06-21 | 2013-06-21 | Large-scale propeller pitch measuring instrument |
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| CN103335582A CN103335582A (en) | 2013-10-02 |
| CN103335582B true CN103335582B (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310251249.5A Active CN103335582B (en) | 2013-06-21 | 2013-06-21 | Large-scale propeller pitch measuring instrument |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112629377B (en) * | 2020-12-12 | 2024-07-05 | 安徽劲旋风航空科技有限公司 | Propeller pitch measuring instrument |
| CN114659481A (en) * | 2022-03-04 | 2022-06-24 | 广西玉柴船电动力有限公司 | Method for measuring pitch of marine propeller |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411073A (en) * | 1980-07-11 | 1983-10-25 | Ryan Terence J | Pitch testing apparatus |
| CN202974145U (en) * | 2012-12-05 | 2013-06-05 | 浙江海洋学院 | Propeller pitch measuring instrument |
| CN203298694U (en) * | 2013-06-21 | 2013-11-20 | 中船澄西远航船舶（广州）有限公司 | Large-scale propeller pitch measuring instrument |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5818106A (en) * | 1981-07-27 | 1983-02-02 | Mitsubishi Heavy Ind Ltd | Measuring device for propeller pitch |
| KR101057751B1 (en) * | 2010-12-10 | 2011-08-19 | 대우조선해양 주식회사 | System and method for dimensional measurement of a propeller |
-
2013
- 2013-06-21 CN CN201310251249.5A patent/CN103335582B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411073A (en) * | 1980-07-11 | 1983-10-25 | Ryan Terence J | Pitch testing apparatus |
| CN202974145U (en) * | 2012-12-05 | 2013-06-05 | 浙江海洋学院 | Propeller pitch measuring instrument |
| CN203298694U (en) * | 2013-06-21 | 2013-11-20 | 中船澄西远航船舶（广州）有限公司 | Large-scale propeller pitch measuring instrument |
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Address after: 511462 Nansha District, Guangzhou, No. sailing Road, No. 10, self made by the author of the 4 (office building), No. 1 Patentee after: The ship dengxi shipyard (Guangzhou) Co. Ltd. Address before: 511462 Guangdong city of Guangzhou province Nansha District Longxue Street Longxue Road Patentee before: The ship sailing ship in Chengxi (Guangzhou) Co. Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 511462 Nansha District, Guangzhou, No. sailing Road, No. 10, self made by the author of the 4 (office building), No. 1 Patentee after: The boat in Guangzhou Wenchong Dock Company Limited Address before: 511462 Nansha District, Guangzhou, No. sailing Road, No. 10, self made by the author of the 4 (office building), No. 1 Patentee before: The ship dengxi shipyard (Guangzhou) Co. Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191225 Address after: 511462 building 6, No. 2, No. 10, QIHANG Road, Nansha District, Guangzhou City, Guangdong Province (production management building and auxiliary building of electromechanical comprehensive workshop) (office only) Patentee after: Guangzhou Wenchong Shipbuilding Co., Ltd Address before: 511462 No. 10, sailing Road, Nansha District, Guangdong, China, No. 1, 4 (office building), written by myself, Guangzhou Patentee before: The boat in Guangzhou Wenchong Dock Company Limited |