CN205256630U - Pipe type marine propeller - Google Patents

Pipe type marine propeller Download PDF

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Publication number
CN205256630U
CN205256630U CN201520963925.6U CN201520963925U CN205256630U CN 205256630 U CN205256630 U CN 205256630U CN 201520963925 U CN201520963925 U CN 201520963925U CN 205256630 U CN205256630 U CN 205256630U
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China
Prior art keywords
blade
propeller
conduit
bearing
type marine
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CN201520963925.6U
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Chinese (zh)
Inventor
房澧洋
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NANTONG CHANGQINGSHA SHIPYARD CO Ltd
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NANTONG CHANGQINGSHA SHIPYARD CO Ltd
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Priority to CN201520963925.6U priority Critical patent/CN205256630U/en
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Abstract

The utility model discloses a pipe type marine propeller, including pipe, outer paddle, interior paddle, propeller hub and bearing, still include water service pipe and chip, the pipe set up in outer paddle is outside, the blade tip of outer paddle with the inner wall of pipe keeps certain distance, the water service pipe set up in interior paddle with between the outer paddle, interior paddle set up in the water service pipe with between the propeller hub, the bearing set up in the propeller hub is inboard, and the chip sets up in the bearing inboardly. The utility model discloses a pipe formula marine propeller sets up the chip at bearing inner race, and the trouble is in time discover to working condition that can the real -time supervision screw, adopt the double fluid to the structure, can effectively improve the propulsive efficiency of screw, tubular structure is led in the adoption, has increased the propulsive force of screw, has improved the work efficiency of screw.

Description

A kind of catheter type marine propeller
Technical field
The utility model relates to a kind of marine propeller, relates in particular to a kind of catheter type marine propeller.
Background technology
Marine propeller of a great variety, common ship for civil use screw mainly contains common screw, conduitScrew, adjustable pitch propeller.
Common screw is made up of blade and propeller hub. Screw and ship axle coupling part are called propeller hub, and propeller hub isThe bullet of a butt. In order to reduce resistance in screw water, propeller hub rear end install hub cap, hub cap withPropeller hub forms streamlined together. Common screw Chang Weisan leaf or four leaves, blade is fixed on propeller hub. By shipAfter tail, the one side of seen propeller blade is called blade face when eyes front, and another side is called blade back. BladeBe called blade root with propeller hub connection place, the outer end of blade is called blade tip. When the positive car rotation of screw, blade edge existsPerson is called guide margin above, and another side is called lagging edge.
Ducted propeller is that a sleeve is installed outside common screw. Sleeve can be fixed, and is called solidDetermine conduit. Sleeve also can rotate, and is called steering nozzle. The generally conduit spiral shell of steering nozzleRevolve oar, its screw is along the axis rotation of level, and steering nozzle is along vertical axis rotation. RotateConduit, except rising guide functions, also plays a part rudder. According to the influence of conduit convection cell speed,Conduit is divided into again acceleration duct (also claiming step-down catheter) and decelerating duct (also claiming flaring conduit), accelerates to leadManaging inner cross section of fluid channel is the shape of convergent from front to back, and the cross section of fluid channel of decelerating duct inside from front to backFor the shape of flaring. A/C does not all rotate with steering nozzle together with screw. Pipe inner wall and leafThe spacing of the tip is very little, foreign material obstruction and pipe inner wall and blade tip easily occurs and sweep thorax accident.
All marine propellers all can produce steam bubble at the blade tip place of blade back, and this process is called cavitation, cavitationCan produce noise and vibration, reduce the performance of screw. Cavitation can cause propeller material to damage, and is called skyErosion, also claims cavitation or cavitation erosion. In order to reduce cavitation to the shipss used for military purposes such as submarine, warship, torpedo and equipmentHarm, often adopts large skew back seven vane propellers, pump water propelling screws, hydraulic propeller and composite spiral shellRevolve oar. Technical sophistication, the cost of large skew back seven vane propellers, pump water propelling screws and hydraulic propeller are high,The more difficult ship for civil use that is applied to.
The propeller load weight of the ships for civil use such as tugboat, trawler, marine engineering job platform, bladeThe pressure reduction of blade face and blade back is very large, if there is no conduit restriction, higher-pressure region water can stream low-pressure area, produces energyAmount loss, if install conduit additional, adopts A/C screw, although can make the efficiency of screw improve,The radius of gyration that is boats and ships increases, and makes convolution performance and the low speed rudder deleterious of boats and ships, rotates and leads if adoptPipe screw, although turnable shrouded screw also has the effect of rudder, tugboat, trawler, seaIn the ship for civil use most time such as engineer operation platform, be to work under the slow-speed of revolution, operating mode complexity, operation on the seaStability requirement to navigation is high, higher to the thrust requirements of screw.
Along with boats and ships maximize and the increase of the speed of a ship or plane, the load of screw is larger, existing propeller for vessels byThe wake flow contraction after loss, screw etc. of streaming in blade point makes its propulsive efficiency not high, and existing skillIn art, screw breaks down and is difficult for finding in time, therefore need to improve existing propeller for vessels.
Utility model content
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of easily monitoring fault, workThe catheter type marine propeller that efficiency is high.
In order to solve the technical problem in background technology, the utility model provides a kind of catheter type spiral peculiar to vesselOar, comprises conduit, outer blade, interior blade, propeller hub and bearing, it is characterized in that, also comprise water service pipe andChip, described conduit is arranged at described outer blade outside, the blade tip of described outer blade and the inwall of described conduitMaintain a certain distance, described water service pipe is arranged between described interior blade and described outer blade, described interior oarLeaf is arranged between described water service pipe and described propeller hub, and described bearing is arranged at described propeller hub inner side, described coreSheet is arranged at described bearing inner side.
Further, described conduit is trapezoidal perpendicular to the cross section of central axial direction, described conduit trailing edgeDiameter of section be greater than the diameter of section of conduit leading edge.
Further, the gap of the blade tip of described outer blade and the inwall of described conduit is 1-5mm.
Further, the gap of the blade tip of described interior blade and described water service pipe inwall is 1-2mm.
Further, described conduit, water service pipe, propeller hub and bearing are half along the cross section of central axial directionThe circle that footpath reduces successively, and the center of circle is on same level straight line.
Further, described interior blade is evenly distributed on described propeller hub, and described outer blade is evenly distributed on instituteState on water service pipe.
Further, described outer blade is 4-6 sheet, and described interior blade is 4-6 sheet.
Particularly, described outer blade equates with the quantity of interior blade, is four.
Further, described outer blade is contrary with the hand of spiral of interior blade.
Further, described chips welding is at described bearing inner race, and described chip is connected with sensor.
The beneficial effects of the utility model are:
(1) catheter type marine propeller of the present utility model arranges chip at bearing inner race, can supervise in real timeSurvey the working condition of screw and find in time fault;
(2) catheter type marine propeller of the present utility model arranges chip at bearing inner race, does not need artificialMake regular check on screw fault, saved human resources;
(3) catheter type marine propeller of the present utility model adopts two flow direction structures, can effectively improve spiral shellRevolve the propulsive efficiency of oar;
(4) the outside catheter type structure that adopts of the screw of catheter type marine propeller of the present utility model, increasesThe large propulsive force of screw, has improved the operating efficiency of screw.
Brief description of the drawings
In order to be illustrated more clearly in the technical solution of the utility model, will retouch embodiment or prior art belowIn stating, the accompanying drawing of required use is briefly described, and apparently, the accompanying drawing in the following describes is onlyEmbodiment more of the present utility model, for those of ordinary skill in the art, are not paying creative laborUnder moving prerequisite, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is catheter type marine propeller structural representation of the present utility model;
Fig. 2 is the conduit schematic diagram of catheter type marine propeller of the present utility model;
Fig. 3 is the cross sectional representation of catheter type marine propeller of the present utility model.
Wherein, in figure, Reference numeral corresponds to: 1-conduit, and the outer blade of 2-, 3-water service pipe, blade in 4-, 5-propeller hub,6-bearing, 7-chip.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, to the technical side in the utility model embodimentCase is clearly and completely described, and obviously, described embodiment is only that the utility model part is realExecute example, instead of whole embodiment. Based on the embodiment in the utility model, ordinary skill peopleThe every other embodiment that member obtains under the prerequisite of not making creative work, belongs to this practicality newThe scope of type protection.
Embodiment 1:
Refer to Fig. 1-3, Fig. 1 is a kind of catheter type marine propeller structural representation of the present utility model, figureThe 2nd, the conduit schematic diagram of a kind of catheter type marine propeller of the present utility model, Fig. 3 is of the present utility model leadingThe cross sectional representation of cast marine propeller. As Figure 1-3, the utility model discloses a kind of catheter typeMarine propeller, comprises conduit 1, outer blade 2, interior blade 4, propeller hub 5 and bearing 6, also comprises water flowingPipe 3 and chip 7, described conduit 1 is arranged at described outer blade 2 outsides, the blade tip of described outer blade 2 and instituteThe inwall of stating conduit 1 maintains a certain distance, described water service pipe 3 be arranged at described interior blade 4 with described outsideBetween blade 2, described interior blade 4 is arranged between described water service pipe 3 and described propeller hub 5, described bearing 6Be arranged at described propeller hub 5 inner sides, described chip 7 is arranged at described bearing 6 inner sides.
Further, described conduit 1 is trapezoidal perpendicular to the cross section of central axial direction, described conduit 1The diameter of section of trailing edge is greater than the diameter of section of conduit 1 leading edge.
Further, the gap of the inwall of the blade tip of described outer blade 2 and described conduit 1 is 2mm.
Further, the gap of the blade tip of described interior blade 4 and described water service pipe 3 inwalls is 1mm.
Further, transversal along central axial direction of described conduit 1, water service pipe 3, propeller hub 5 and bearing 6Face is the circle that radius reduces successively, and the center of circle is on same level straight line.
Further, described interior blade 4 is evenly distributed on described propeller hub 5, and described outer blade 2 evenly dividesCloth is on described water service pipe 3.
Further, described outer blade 2 equates with the quantity of interior blade 4, is 4.
Particularly, described outer blade 2 is contrary with the hand of spiral of interior blade 4.
Further, described chip 7 is welded on described bearing 6 inner rings, and described chip 7 is connected with sensor.
A kind of catheter type marine propeller course of work that the utility model embodiment provides is as follows: as Fig. 1-3Shown in, bearing 6 is arranged at propeller hub 5 inner sides, and the hand of spiral of outer blade 2 and interior blade 4 is contrary, spiralWhen oar rotates water to pusher, the water in water service pipe 3 forward flow, thereby improved screwIn the situation of low pressure water flow above, there is eddy current in the region of limiting its propeller hub 5, acceleration propellerWake, increases the reaction force of screw, uses effect, to improve the speed of a ship or plane of boats and ships thereby improve it; LeadPipe 1, water service pipe 3, propeller hub 5 and bearing 6 are the circle that radius reduces successively along the cross section of central axial directionShape, and the center of circle is on same level straight line, and the gap of the inwall of the blade tip of outer blade 2 and conduit 1 is2mm, the gap of the blade tip of interior blade 4 and water service pipe 3 inwalls is 1mm, has limited the damage of streaming of blade pointLose, the wake flow that conduit 1 can reduce after screw simultaneously shrinks, and energy loss is reduced, thereby effectively carryThe propulsive efficiency of high screw; Conduit 1 is trapezoidal perpendicular to the cross section of central axial direction, after conduit 1The diameter of section of edge is greater than the diameter of section of conduit 1 leading edge, has increased the propulsive force of screw, has improved spiral shellRevolve the operating efficiency of oar; Chip 7 is connected with sensor. Chip 7 keeps relative static with bearing 6 inner rings,Judge the working order of bearing 6 by the state of Sensor monitoring chip 7, thereby further determine screwWhether run well, in the time that screw runs well, sensor can not be reported to the police; Shut down when screw orWhen rotating speed is undesired, sensor Realtime Alerts prompting staff.
The beneficial effects of the utility model are:
(1) catheter type marine propeller of the present utility model arranges chip at bearing inner race, can supervise in real timeSurvey the working condition of screw and find in time fault;
(2) catheter type marine propeller of the present utility model arranges chip at bearing inner race, does not need artificialMake regular check on screw fault, saved human resources;
(3) catheter type marine propeller of the present utility model adopts two flow direction structures, can effectively improve spiral shellRevolve the propulsive efficiency of oar;
(4) the outside catheter type structure that adopts of the screw of catheter type marine propeller of the present utility model, increasesThe large propulsive force of screw, has improved the operating efficiency of screw.
The above is preferred embodiment of the present utility model, is noted that general for the artLogical technical staff, is not departing under the prerequisite of the utility model principle, can also make some improvement andRetouching, these improvements and modifications are also considered as protection domain of the present utility model.

Claims (10)

1. a catheter type marine propeller, comprise conduit (1), outer blade (2), interior blade (4), propeller hub (5) and bearing (6), it is characterized in that, also comprise water service pipe (3) and chip (7), described conduit (1) is arranged at described outer blade (2) outside, the inwall of the blade tip of described outer blade (2) and described conduit (1) maintains a certain distance, described water service pipe (3) is arranged between described interior blade (4) and described outer blade (2), described interior blade (4) is arranged between described water service pipe (3) and described propeller hub (5), described bearing (6) is arranged at described propeller hub (5) inner side, described chip (7) is arranged at described bearing (6) inner side.
2. a kind of catheter type marine propeller according to claim 1, it is characterized in that, described conduit (1) is trapezoidal perpendicular to the cross section of central axial direction, and the diameter of section of described conduit (1) trailing edge is greater than the diameter of section of conduit (1) leading edge.
3. a kind of catheter type marine propeller according to claim 1 and 2, is characterized in that, the gap of the inwall of the blade tip of described outer blade (2) and described conduit (1) is 1-5mm.
4. a kind of catheter type marine propeller according to claim 1, is characterized in that, the gap of the blade tip of described interior blade (4) and described water service pipe (3) inwall is 1-2mm.
5. a kind of catheter type marine propeller according to claim 1, it is characterized in that, described conduit (1), water service pipe (3), propeller hub (5) and bearing (6) are the circle that radius reduces successively along the cross section of central axial direction, and the center of circle is on same level straight line.
6. a kind of catheter type marine propeller according to claim 3, it is characterized in that, it is upper that described interior blade (4) is evenly distributed on described propeller hub (5), and described outer blade (2) is evenly distributed on described water service pipe (3).
7. a kind of catheter type marine propeller according to claim 6, is characterized in that, described outer blade (2) is 4-6 sheet, and described interior blade (4) is 4-6 sheet.
8. a kind of catheter type marine propeller according to claim 7, is characterized in that, described outer blade (2) equates with the quantity of interior blade (4), is four.
9. a kind of catheter type marine propeller according to claim 8, is characterized in that, described outer blade (2) is contrary with the hand of spiral of interior blade (4).
10. a kind of catheter type marine propeller according to claim 1, is characterized in that, described chip (7) is welded on described bearing (6) inner ring, and described chip (7) is connected with sensor.
CN201520963925.6U 2015-11-26 2015-11-26 Pipe type marine propeller Active CN205256630U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520963925.6U CN205256630U (en) 2015-11-26 2015-11-26 Pipe type marine propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520963925.6U CN205256630U (en) 2015-11-26 2015-11-26 Pipe type marine propeller

Publications (1)

Publication Number Publication Date
CN205256630U true CN205256630U (en) 2016-05-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105346697A (en) * 2015-11-26 2016-02-24 南通长青沙船舶工程有限公司 Propeller for guide pipe type ship
CN109080798A (en) * 2018-08-23 2018-12-25 东莞市奇趣机器人科技有限公司 A kind of underwater workbench of numerical of the underwater robot convenient for adjusting

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105346697A (en) * 2015-11-26 2016-02-24 南通长青沙船舶工程有限公司 Propeller for guide pipe type ship
CN109080798A (en) * 2018-08-23 2018-12-25 东莞市奇趣机器人科技有限公司 A kind of underwater workbench of numerical of the underwater robot convenient for adjusting

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