CN102530216B - High-power rudder propeller with guide pipe and detaching method for blades of propeller - Google Patents
High-power rudder propeller with guide pipe and detaching method for blades of propeller Download PDFInfo
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Abstract
A high-power rudder propeller with a guide pipe comprises a crank pin plate connected with a blade flange through a blade bolt and a blade guide pin. A jacking device is arranged in the blade flange, one end of a piston in the jacking device is positioned in an inner cavity of the blade flange, the other end of the piston is connected with a base plate arranged in a spigot of the crank pin plate, two retaining plates are arranged on two sides of a joint of the piston and the base plate respectively, a hollow cavity positioned at the upper end of the piston in the inner cavity of the blade flange is communicated with a screw plug hole through an oblique oil hole, the screw plug hole is arranged on the side wall of a blade bolt hole, and the blade flange is provided with two lifting holes. The detaching method sequentially includes the steps: detaching the blade bolt and the blade guide pin, feeding pressure oil to separate the blade flange sequentially from the crank pin plate and a propeller hub, lifting the blade flange and blades, moving the blade flange and the blades away, and sequentially repeating the process until all the blades are detached. The high-power rudder propeller with the guide pipe is short in maintenance time and low in detaching difficulty, and the detaching method is applicable to all high-power rudder propellers with the guide pipes or main-push controllable-pitch propellers and is wide in application range.
Description
Technical field
The present invention relates to a kind of method for dismounting of blade, relate in particular to a kind of high-power full-rotating rudder paddle of carrying pipe and the method for dismounting of blade thereof, specifically be applicable to do not dismantling on the basis of conduit, high-power full-rotating rudder paddle to carrying pipe or the blade of promoting mainly adjustable pitch propeller of carrying pipe are dismantled at conduit, in conduit, dismantle blade.
Background technology
Along with ocean engineering ship is towards maximization, high-power development, the high-power full-rotating rudder paddle that can simultaneously meet ship power, positioning requirements is also more and more widely used.In order to improve load-carrying capacity, propulsion coefficient and the bitt thrust of high-power full-rotating rudder paddle, being equipped with conduit becomes a best selection.
At present, traditional high-power full-rotating rudder paddle is in the time of General Maintenance, and after must first conduit being disassembled, the work such as the blade of just polishing, replacing blade seal ring, after all handling labors complete, also need to reinstall conduit.This has not only wasted a large amount of time, simultaneously due to guide-tube structure complexity, the heaviness of high-power full-rotating rudder paddle, brings inconvenience to the lifting work of installing/dismounting, has increased dismounting difficulty.
Chinese patent Granted publication number is CN2832659Y, Granted publication day is that the utility model patent on November 1st, 2006 discloses a kind of Combined sideways-acting propeller, axle drive shaft one side of this utility model on gear case assembly is provided with gear case flange, gear case flange is connected with the conduit flange arranging on conduit through bolt, prop shaft in gear case assembly is connected with propeller hub assembly through hydraulic coupler without key, and displacement oil cylinder is arranged on the propeller hub inside of propeller hub assembly.Although this utility model has reduced the difficulty of processing and manufacturing and installation, structure is compacter, in the time carrying out General Maintenance, still need first the propeller hub assembly with blade to be taken apart together from conduit, then just can carry out General Maintenance, not only maintenance time is longer, and dismounting difficulty is higher.
Summary of the invention
The object of the invention is to overcome that the maintenance time that exists in prior art is long, the higher problem and blemish of dismounting difficulty, a kind of maintenance time is shorter, dismounting difficulty is lower high-power full-rotating rudder paddle and the method for dismounting of blade thereof are provided.
For realizing above object, technical solution of the present invention is: a kind of high-power full-rotating rudder paddle of carrying pipe, comprise conduit, lower portion gear box, propeller hub body, crank pin disk and cast-in-block blade and blade flange, described conduit is connected with the upper end of lower portion gear box by conduit bolt, blade is rotated in conduit, blade flange is fixedly connected with crank pin disk by blade bolt, and crank pin disk and propeller hub body fasten;
The inside of described blade flange is provided with jacking system, this jacking system comprises piston, baffle plate and backing plate, one end of described piston is arranged in blade flange inner chamber, the other end is connected with the backing plate arranging in crank pin disk seam, piston, the be connected both sides at position of backing plate are respectively provided with a baffle plate, this baffle plate is fixedly connected with crank pin disk by screw, the cavity that is positioned at piston upper end in described blade flange inner chamber communicates with the spiro pluging hole arranging on blade bolt hole sidewall by inclined oil hole of air, in spiro pluging hole, be provided with plug screw, in blade bolt hole, be provided with blade bolt, on described blade flange, be provided with two holes for hoist, and the projection of the center of gravity of blade in blade Flange Plane is positioned on the center connection lead of two holes for hoist,
Minimum clearance between blade tip and the conduit of described blade is L1, and the stroke of described piston is L2, and the distance between described blade Flange Plane and the external circle of propeller hub is L3, and the distance between described blade Flange Plane and crank pin disk seam is L4, and L1 ﹥ L2 ﹥ L3 ﹥ L4.
Described crank pin disk is connected with blade flange by blade pilot pin, blade bolt, and blade pilot pin is bolted on crank pin disk in pin-guide hole by pilot pin; Between the side of described piston upper end and blade flange inner chamber, be provided with O RunddichtringO.
A method for dismounting for the blade of the high-power full-rotating rudder paddle of above-mentioned carrying pipe, described method for dismounting comprises the following steps successively:
The first step: first lifting tool is installed on conduit, then is taken away two corrosion-resistant steel plug screws in hole for hoist, then lifting tool is connected with two holes for hoist, then the blade bolt on blade flange is dismantled from outside; Described crank pin disk is connected with blade flange by blade bolt;
Second step: after above-mentioned dismounting finishes, first take off plug screw, again from spiro pluging hole to inclined oil hole of air, squeeze into pressure oil, the pressure oil of squeezing into flows in the cavity in blade flange inner chamber, subsequently, pressure oil in cavity presses down piston, blade flange is by jack-up simultaneously, in the time that jack-up stroke is greater than the distance L 4 between blade Flange Plane and crank pin disk seam, blade flange and crank pin disk depart from, continue to squeeze into pressure oil, in the time that jack-up stroke is greater than the distance L 3 between blade Flange Plane and the external circle of propeller hub, blade flange and propeller hub body depart from, after disengaging, stop squeezing into pressure oil, control again lifting tool by blade flange, blade is sling, and put down blade flange and blade after horizontally outward removing certain distance, now dismantle complete first blade,
The 3rd step: first by propeller hub body Rotate 180 degree, then with same method for dismounting dismounting and the blade of first symmetry, so repeatedly, until the dismounting of all blades is complete, now can complete the dismounting of the blade of the high-power full-rotating rudder paddle of carrying pipe.
In the described first step, described crank pin disk is connected with blade flange by blade pilot pin, blade bolt, in the time that the blade bolt on blade flange is dismantled from outside, the pilot pin bolt on blade flange, blade pilot pin is dismantled from outside simultaneously.
The quantity of described blade is four, and along same even circumferential setting.
The installation process of blade is contrary with unloading process step, but principle is similar with method, can in conduit, carry out equally.
Compared with prior art, beneficial effect of the present invention is:
1, in the high-power full-rotating rudder paddle of a kind of carrying pipe of the present invention and the method for dismounting of blade thereof, traditional rudder paddle structure has been carried out to particular design, mainly to be provided with jacking system in the inside of blade flange so that blade flange and crank pin disk, propeller hub body are departed from successively, simultaneously, for coordinating the operation of jacking system, also other parts are carried out to matching design, as: on blade flange, be provided with two holes for hoist; Distance L 4 between distance L 3, blade Flange Plane and crank pin disk seam between the minimum clearance L1 between blade tip and conduit to blade, the stroke L2 of piston, blade Flange Plane and the external circle of propeller hub is designed to L1 ﹥ L2 ﹥ L3 ﹥ L4 etc.; Now, in the time that the high-power full-rotating rudder paddle of a kind of carrying pipe of the present invention is dismantled, do not need first to dismantle conduit, can directly in conduit, carry out, do not need extra expensive equipment yet, only need lifting tool blade can be dismantled smoothly, not only convenient operation, and greatly saved maintenance time.Therefore not only maintenance time is shorter in the present invention, and dismounting difficulty is lower.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of pilot pin bolt in Fig. 1.
Fig. 3 is the structural representation of jacking system in Fig. 1.
In figure: lower portion gear box 1, conduit 2, conduit bolt 21, crank pin disk 3, crank pin disk seam 31, blade 4, blade tip 41, blade flange 5, blade flange inner chamber 51, propeller hub body 6, blade bolt 7, blade bolt hole 71, jacking system 8, piston 81, baffle plate 82, screw 821, backing plate 83, cavity 84, inclined oil hole of air 85, spiro pluging hole 86, plug screw 861, pilot pin bolt 9, pin-guide hole 91, blade pilot pin 92, hole for hoist 10, O RunddichtringO 11.
The specific embodiment
Below in conjunction with accompanying drawing explanation and the specific embodiment, the present invention is further detailed explanation.
Referring to figure 1 – Fig. 3, a kind of high-power full-rotating rudder paddle of carrying pipe, comprise conduit 2, lower portion gear box 1, propeller hub body 6, crank pin disk 3 and cast-in-block blade 4 and blade flange 5, described conduit 2 is connected with the upper end of lower portion gear box 1 by conduit bolt 21, blade 4 is rotated in conduit 2, blade flange 5 is fixedly connected with crank pin disk 3 by blade bolt 7, and crank pin disk 3 fastens with propeller hub body 6;
The inside of described blade flange 5 is provided with jacking system 8, this jacking system 8 comprises piston 81, baffle plate 82 and backing plate 83, one end of described piston 81 is arranged in blade flange inner chamber 51, the other end is connected with the backing plate 83 of crank pin disk seam 31 interior settings, piston 81, the be connected both sides at position of backing plate 83 are respectively provided with a baffle plate 82, this baffle plate 82 is fixedly connected with crank pin disk 3 by screw 821, the cavity 84 that is positioned at piston 81 upper ends in described blade flange inner chamber 51 communicates with the spiro pluging hole 86 arranging on blade bolt hole 71 sidewalls by inclined oil hole of air 85, in spiro pluging hole 86, be provided with plug screw 861, in blade bolt hole 71, be provided with blade bolt 7, on described blade flange 5, be provided with two holes for hoist 10, and the projection of the center of gravity of blade 4 in blade flange 5 planes is positioned on two hole for hoist 10 center connection leads,
Minimum clearance between blade tip 41 and the conduit 2 of described blade 4 is L1, the stroke of described piston 81 is L2, distance between described blade flange 5 planes and propeller hub body 6 cylindricals is L3, and the distance between described blade flange 5 planes and crank pin disk seam 31 is L4, and L1 ﹥ L2 ﹥ L3 ﹥ L4.
Described crank pin disk 3 is connected with blade flange 5 by blade pilot pin 92, blade bolt 7, and blade pilot pin 92 is fixed in the pin-guide hole 91 on crank pin disk 3 by pilot pin bolt 9; Between the side of described piston 81 upper ends and blade flange inner chamber 51, be provided with O RunddichtringO 11.
A method for dismounting for the blade of the high-power full-rotating rudder paddle of above-mentioned carrying pipe, described method for dismounting comprises the following steps successively:
The first step: first on conduit 2, lifting tool is installed, then is taken away two corrosion-resistant steel plug screws in hole for hoist 10, then lifting tool is connected with two holes for hoist 10, then the blade bolt 7 on blade flange 5 is dismantled from outside; Described crank pin disk 3 is connected with blade flange 5 by blade bolt 7;
Second step: after above-mentioned dismounting finishes, first take off plug screw 861, to inclined oil hole of air 85, squeeze into pressure oil from spiro pluging hole 86 again, the pressure oil of squeezing into flows in the cavity 84 in blade flange inner chamber 51, subsequently, pressure oil in cavity 84 presses down piston 81, blade flange 5 is by jack-up simultaneously, in the time that jack-up stroke is greater than the distance L 4 between blade flange 5 planes and crank pin disk seam 31, blade flange 5 departs from crank pin disk 3, continue to squeeze into pressure oil, in the time that jack-up stroke is greater than the distance L 3 between blade flange 5 planes and propeller hub body 6 cylindricals, blade flange 5 departs from propeller hub body 6, after disengaging, stop squeezing into pressure oil, control again lifting tool by blade flange 5, blade 4 is sling, and put down blade flange 5 and blade 4 after horizontally outward removing certain distance, now dismantle complete first blade 4,
The 3rd step: first by propeller hub body 6 Rotate 180 degree, then with the dismounting of same method for dismounting the blade 4 with first symmetry, so repeatedly, until that all blades 4 are dismantled is complete, now can complete the dismounting of the blade of the high-power full-rotating rudder paddle of carrying pipe.
In the described first step, described crank pin disk 3 is connected with blade flange 5 by blade pilot pin 92, blade bolt 7, in the time that the blade bolt 7 on blade flange 5 is dismantled from outside, the pilot pin bolt 9 on blade flange 5, blade pilot pin 92 are dismantled from outside simultaneously.
The quantity of described blade 4 is four, and along same even circumferential setting.
Principle of the present invention is described as follows:
One, jacking system:
The inside of blade flange 5 is provided with jacking system 8, this jacking system 8 comprises piston 81, baffle plate 82 and backing plate 83, one end of piston 81 is arranged in blade flange inner chamber 51, the other end is connected with the backing plate 83 of crank pin disk seam 31 interior settings, piston 81, the be connected both sides at position of backing plate 83 are respectively provided with the spacing stroke L2 that determines piston 81 that coordinates between a baffle plate 82(baffle plate 82 and piston 81 upper ends), the cavity 84 that is positioned at piston 81 upper ends in blade flange inner chamber 51 communicates with the spiro pluging hole 86 arranging on blade bolt hole 71 sidewalls by inclined oil hole of air 85, when dismounting, from spiro pluging hole 86, inclined oil hole of air 85 is input into pressure oil in the cavity 84 in blade flange inner chamber 51, under the pressure-acting of pressure oil, piston 81 is pressed down, and by blade flange 5 upwards jack-up (blade 4 is also by jack-up upwards, because blade 4, blade flange 5 is inblock cast), thereby make blade flange 5 planes depart from successively crank pin disk seam 31 and propeller hub body 6 cylindricals.
Two, hole for hoist:
Being provided with hole for hoist 10(position on the both sides of blade flange 5 will be depending on concrete blade), one on one side, the projection of the center of gravity of blade 4 in blade flange 5 planes is positioned on two hole for hoist 10 center connection leads, when dismounting, by being arranged on the hole for hoist 10 on lifting tool connection blade flange 5 both sides on conduit 2, blade 4 pulsation-frees are upwards lifted by crane, be convenient to carrying out smoothly of dismantlement work, after maintenance work finishes, utilize corrosion-resistant steel plug screw that hole for hoist 10 is blocked.Hole for hoist 10 is except removing and opening when blade 4, other time all block with corrosion-resistant steel plug screw.
Three, pilot pin bolt:
By pilot pin bolt 9, blade pilot pin 92 is fixed in the pin-guide hole 91 on blade flange 5 and crank pin disk 3, avoids the pin-guide hole 91 that flies out under the effect of centnifugal force, when dismounting, after pilot pin bolt 9 is back-outed, can easily blade pilot pin 92 be dismantled from outside.
Four, the travel relationships in dismounting:
Minimum clearance between blade tip 41 and the conduit 2 of blade 4 is L1, the stroke of piston 81 is L2, distance between blade flange 5 planes and propeller hub body 6 cylindricals is L3, distance between blade flange 5 planes and crank pin disk seam 31 is L4, the reason of regulation L1 ﹥ L2 ﹥ L3 ﹥ L4 is: can guarantee that blade 4 throws off smoothly in crank pin disk seam 31, propeller hub body 6 cylindricals, also can avoid blade 4 to rise and too highly bump with conduit 2.
Embodiment:
A kind of high-power full-rotating rudder paddle of carrying pipe, comprise conduit 2, lower portion gear box 1, crank pin disk 3, blade 4 and blade flange 5, blade 4, blade flange 5 is inblock cast structure, the quantity of blade 4 is four, and along same even circumferential setting, described conduit 2 is connected with the upper end of lower portion gear box 1 by conduit bolt 21, the lower end of lower portion gear box 1 is connected with the rear end of crank pin disk 3, the front end of crank pin disk 3 and propeller hub body 6 fasten, the sidepiece of crank pin disk 3 is by blade pilot pin 92, blade bolt 7 is connected with blade flange 5, blade pilot pin 92 is fixed in pin-guide hole 91 by pilot pin bolt 9, pin-guide hole 91 is symmetrical set with blade bolt hole 71,
The inside of described blade flange 5 is provided with jacking system 8, this jacking system 8 comprises piston 81, baffle plate 82 and backing plate 83, the upper end of described piston 81 is arranged in blade flange inner chamber 51, between the side of piston 81 upper ends and blade flange inner chamber 51, be provided with O RunddichtringO 11, the lower end of piston 81 is connected with the backing plate 83 of crank pin disk seam 31 interior settings, piston 81, the be connected both sides at position of backing plate 83 are respectively provided with a baffle plate 82, this baffle plate 82 is fixedly connected with crank pin disk 3 by screw 821, the cavity 84 that is positioned at piston 81 upper ends in described blade flange inner chamber 51 communicates with the spiro pluging hole 86 arranging on blade bolt hole 71 sidewalls by inclined oil hole of air 85, in spiro pluging hole 86, be provided with plug screw 861, in blade bolt hole 71, be provided with blade bolt 7, on described blade flange 5, be provided with two holes for hoist 10, and the projection of the center of gravity of blade 4 in blade flange 5 planes is positioned on two hole for hoist 10 center connection leads,
Minimum clearance between blade tip 41 and the conduit 2 of described blade 4 is L1, the stroke of described piston 81 is L2, distance between described blade flange 5 planes and propeller hub body 6 cylindricals is L3, and the distance between described blade flange 5 planes and crank pin disk seam 31 is L4, and L1 ﹥ L2 ﹥ L3 ﹥ L4.
A method for dismounting for the blade of the high-power full-rotating rudder paddle of above-mentioned carrying pipe, described method for dismounting comprises the following steps successively:
The first step: first on conduit 2, lifting tool is installed, take again two corrosion-resistant steel plug screws in hole for hoist 10 away, then lifting tool is connected with two holes for hoist 10, then the blade bolt 7 on blade flange 5, pilot pin bolt 9, blade pilot pin 92 are dismantled from outside;
Second step: after above-mentioned dismounting finishes, first take off plug screw 861, to inclined oil hole of air 85, squeeze into pressure oil from spiro pluging hole 86 again, the pressure oil of squeezing into flows in the cavity 84 in blade flange inner chamber 51, subsequently, pressure oil in cavity 84 presses down piston 81, blade flange 5 is by jack-up simultaneously, in the time that jack-up stroke is greater than the distance L 4 between blade flange 5 planes and crank pin disk seam 31, blade flange 5 departs from crank pin disk 3, continue to squeeze into pressure oil, in the time that jack-up stroke is greater than the distance L 3 between blade flange 5 planes and propeller hub body 6 cylindricals, blade flange 5 departs from propeller hub body 6, after disengaging, stop squeezing into pressure oil, control again lifting tool by blade flange 5, blade 4 is sling, and put down blade flange 5 and blade 4 after horizontally outward removing certain distance, now dismantle complete first blade 4,
The 3rd step: first by propeller hub body 6 Rotate 180 degree, then with the dismounting of same method for dismounting the blade 4 with first symmetry, so repeatedly, until that all blades 4 are dismantled is complete, now can complete the dismounting of the blade of the high-power full-rotating rudder paddle of carrying pipe.
Therefore, the present invention is in the time carrying out General Maintenance, do not need to dismantle conduit, can directly dismantle blade, improved the maintainability of high-power full-rotating rudder paddle, thereby the present invention is applicable to the high-power full-rotating rudder paddle of all carrying pipes, only need to carries out particular design to parts such as its propeller hub assembly, conduit, blade flanges, meanwhile, the present invention can also be applied to the main controllable pitch propeller of carrying pipe.
Claims (5)
1. the high-power full-rotating rudder paddle of a carrying pipe, comprise conduit (2), lower portion gear box (1), propeller hub body (6), crank pin disk (3) and cast-in-block blade (4) and blade flange (5), described conduit (2) is connected with the upper end of lower portion gear box (1) by conduit bolt (21), blade (4) is rotated in conduit (2), blade flange (5) is fixedly connected with crank pin disk (3) by blade bolt (7), and crank pin disk (3) fastens with propeller hub body (6), it is characterized in that:
The inside of described blade flange (5) is provided with jacking system (8), this jacking system (8) comprises piston (81), baffle plate (82) and backing plate (83), one end of described piston (81) is arranged in blade flange inner chamber (51), the other end is connected with the backing plate (83) arranging in crank pin disk seam (31), piston (81), the be connected both sides at position of backing plate (83) are respectively provided with a baffle plate (82), this baffle plate (82) is fixedly connected with crank pin disk (3) by screw (821), the cavity (84) that is positioned at piston (81) upper end in described blade flange inner chamber (51) communicates with the spiro pluging hole (86) arranging on blade bolt hole (71) sidewall by inclined oil hole of air (85), in spiro pluging hole (86), be provided with plug screw (861), in blade bolt hole (71), be provided with blade bolt (7), on described blade flange (5), be provided with two holes for hoist (10), and the projection of the center of gravity of blade (4) in blade flange (5) plane is positioned on the center connection lead of two holes for hoist (10),
Minimum clearance between blade tip (41) and the conduit (2) of described blade (4) is L1, the stroke of described piston (81) is L2, distance between described blade flange (5) plane and propeller hub body (6) cylindrical is L3, distance between described blade flange (5) plane and crank pin disk seam (31) is L4, and L1 ﹥ L2 ﹥ L3 ﹥ L4.
2. the high-power full-rotating rudder paddle of a kind of carrying pipe according to claim 1, it is characterized in that: described crank pin disk (3) is connected with blade flange (5) by blade pilot pin (92), blade bolt (7), blade pilot pin (92) is fixed in the pin-guide hole (91) on crank pin disk (3) by pilot pin bolt (9); Between the side of described piston (81) upper end and blade flange inner chamber (51), be provided with O RunddichtringO (11).
3. a method for dismounting for the blade of the high-power full-rotating rudder paddle of carrying pipe claimed in claim 1, is characterized in that described method for dismounting comprises the following steps successively:
The first step: first at the upper lifting tool of installing of conduit (2), take again the corrosion-resistant steel plug screw in two holes for hoist (10) away, then lifting tool is connected with two holes for hoist (10), then the blade bolt (7) on blade flange (5) is dismantled from outside; Described crank pin disk (3) is connected with blade flange (5) by blade bolt (7);
Second step: after above-mentioned dismounting finishes, first take off plug screw (861), to inclined oil hole of air (85), squeeze into pressure oil from spiro pluging hole (86) again, the pressure oil of squeezing into flows in the cavity (84) in blade flange inner chamber (51), subsequently, pressure oil in cavity (84) presses down piston (81), blade flange (5) is by jack-up simultaneously, in the time that jack-up stroke is greater than the distance L 4 between blade flange (5) plane and crank pin disk seam (31), blade flange (5) departs from crank pin disk (3), continue to squeeze into pressure oil, in the time that jack-up stroke is greater than the distance L 3 between blade flange (5) plane and propeller hub body (6) cylindrical, blade flange (5) departs from propeller hub body (6), after disengaging, stop squeezing into pressure oil, control again lifting tool by blade flange (5), blade (4) is sling, and put down blade flange (5) and blade (4) after horizontally outward removing certain distance, now dismantle complete first blade (4),
The 3rd step: first by propeller hub body (6) Rotate 180 degree, again with same method for dismounting dismounting and the blade (4) of first symmetry, so repeatedly, until that all blades (4) are dismantled is complete, now can complete the dismounting of the blade of the high-power full-rotating rudder paddle of carrying pipe.
4. the method for dismounting of the blade of the high-power full-rotating rudder paddle of a kind of carrying pipe according to claim 3, it is characterized in that: in the described first step, described crank pin disk (3) is connected with blade flange (5) by blade pilot pin (92), blade bolt (7), in the time that the blade bolt (7) on blade flange (5) is dismantled from outside, the pilot pin bolt (9) on blade flange (5), blade pilot pin (92) are dismantled from outside simultaneously.
5. according to the method for dismounting of the blade of the high-power full-rotating rudder paddle of a kind of carrying pipe described in claim 3 or 4, it is characterized in that: the quantity of described blade (4) is four, and along same even circumferential setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210032041.XA CN102530216B (en) | 2012-02-14 | 2012-02-14 | High-power rudder propeller with guide pipe and detaching method for blades of propeller |
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| CN201210032041.XA CN102530216B (en) | 2012-02-14 | 2012-02-14 | High-power rudder propeller with guide pipe and detaching method for blades of propeller |
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| CN102530216B true CN102530216B (en) | 2014-05-21 |
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| CN109292039B (en) * | 2018-07-20 | 2019-11-08 | 武汉船用机械有限责任公司 | A kind of installation method of distance-adjustable oar hub |
| CN109292068B (en) * | 2018-08-30 | 2020-04-17 | 武汉船用机械有限责任公司 | Propelling unit of full-rotation rudder propeller device and manufacturing method thereof |
| CN109987208A (en) * | 2019-04-03 | 2019-07-09 | 江龙船艇科技股份有限公司 | A kind of propeller disassembly and assembly structure and propeller assembly and disassembly methods |
| CN110371278B (en) * | 2019-05-31 | 2021-05-28 | 武汉船用机械有限责任公司 | Blade hole plugging tool and plugging method |
| CN110641661A (en) * | 2019-08-22 | 2020-01-03 | 武汉船用机械有限责任公司 | Rudder turning mechanism of underwater vehicle |
| CN112407214A (en) * | 2020-11-23 | 2021-02-26 | 上海斯玛德大推船用螺旋桨设计有限公司 | Deep sea propeller composite material conduit |
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| CN2832659Y (en) * | 2005-10-13 | 2006-11-01 | 武汉船用机械有限责任公司 | Combined sideways-acting propeller |
| WO2009153906A1 (en) * | 2008-06-20 | 2009-12-23 | 川崎重工業株式会社 | Ship thruster with duct |
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| Publication number | Publication date |
|---|---|
| CN102530216A (en) | 2012-07-04 |
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