CN201300987Y - Gear transmission type blade pitch regulation device for model adjustable propeller - Google Patents
Gear transmission type blade pitch regulation device for model adjustable propeller Download PDFInfo
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- CN201300987Y CN201300987Y CNU2008201563761U CN200820156376U CN201300987Y CN 201300987 Y CN201300987 Y CN 201300987Y CN U2008201563761 U CNU2008201563761 U CN U2008201563761U CN 200820156376 U CN200820156376 U CN 200820156376U CN 201300987 Y CN201300987 Y CN 201300987Y
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- propeller
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Abstract
A gear transmission type blade pitch regulation device for a model adjustable propeller belongs to the field of ship propulsion devices. The gear transmission type blade pitch regulation device comprises a hub and a blade, a root shaft is arranged at the root part of the blade, the hub is a Half-type structure which comprises a first semi-hub and a second semi-hub, the first semi-hub and the second semi-hub are provided with hub fixed connecting screws, a gear transmission type blade pitch regulation component is arranged on the root shaft of the blade and the first semi-hub, a positioning retaining ring is arranged at the end part of the root shaft of the blade, and positioning grooves are correspondingly formed on the first semi-hub and on the second semi-hub. The utility model adopts the technical scheme that the gear transmission type blade pitch regulation device has the advantages of simple structure, convenient, stable and reliable operation, high pitch positioning precision and high pitch regulation efficiency, thereby being capable of being widely applied in the fields of design/development/test of various model adjustable propellers.
Description
Technical field
The utility model belongs to the propelling unit or the steering gear field of boats and ships, relates in particular to a kind of screw pitch of propeller blades control apparatus that is used for the design of model controllable pitch propeller, exploitation, test.
Background technology
Marine propulsion is to the economy decisive role of operation of ship.When selecting marine propuision system most important parameter be investment cost, space requirement, propulsion coefficient or corresponding fuel consumption rate, reliability and during operation of ship the effective rate of utilization of propulsion system.
In the design of marine propulsion, the mutual action between driving engine, screw propeller and the boats and ships hydrodynamic property has special significance; Have only the combination of having considered them, and total system is when being configured to the best, it is reasonable that marine propuision system just deserves to be called cost.
Reduce ship resistance, improve boats and ships and screw propeller hydrodynamic performance, improve the efficient of main frame efficient and each unit of torque transfer and adopt energy conserving system, just can reach the purpose that reduces marine fuel oil consumption and reduce fuel cost at heating device and generating set.
The driving engine and the propelling unit of existing type are carried out various combination, can obtain a series of possible propelling unit schemes, every ship should be selected best propulsion system scheme according to ship type and planning transportation service range thereof, in this selection course, the design of screw propeller correlation parameter, exploitation and test are one of steps of most critical.
In screw propeller design, exploitation and process of the test, be issued to best effect for guaranteeing various boats and ships at various environmental working conditions, must be by the model controllable pitch propeller be carried out related experiment, so that obtain the pitch of best screw blade.
The definition of pitch: screw propeller rotates a circle in axially movable distance.
Open day is on May 21st, 2008, and publication number is to disclose a kind of " selection designing method of marine main controllable pitch propeller device " in the Chinese invention patent application of CN 101181929A, and it selects hub diameter d according to the known parameters of hull, main frame and gear case
H, and determine the diameter of propeller blade D of tuning for Controllable Pitch Propeller, disk ratio EAR, pitch ratio P/D, efficiency eta, number of blade z according to spacing oar series collection of illustrative plates; Determine the quality and the rotor inertia of tuning for Controllable Pitch Propeller blade according to empirical equation; And carry out propeller hub strength check and load-carrying capacity and check, satisfied the requirement of tuning for Controllable Pitch Propeller in-use performance preferably, to obtain the preferable Selection and Design scheme of safety and reliability, the design fund input is few, program simplification, design cycle is shorter, and systematicness is good, and datumization is handled convenient, be convenient to computer management, data are accurately and reliably, and are less with later stage design-calculated error, in the later stage of tuning for Controllable Pitch Propeller technical design process to Selection and Design the change of definite parameter few, easy to adjust, the later stage design cycle is simplified, and the cycle shortens, and efficient improves.
This technical scheme is applicable to the design and the development phase of screw propeller, and its result still awaits actual tests/experiment link and verifies and/or revise.
At present, in the test/experiment link of reality, commonly used/as known the model controllable pitch propeller to be carried out roll adjustment (be actually and adjust the rotation angle of propeller blade with respect to a certain reference plane), be to adopt manual roll adjustment/angle method, it utilizes scale, groove to combine with eye gauge and finds accurately and locate, and its anglec of rotation is regulated difficulty, and accuracy rate is low, the effort, time-consuming, efficient is low, data reappearance is poor.
The utility model content
Technical problem to be solved in the utility model provides a kind of simple in structure, easy to operate, stable, reliable, pitch can be regulated arbitrarily, setting range is big, setting accuracy is high, the gear type blade pitch adjustment means that is used for the model controllable pitch propeller that roll adjustment efficient is high.
The technical solution of the utility model is: a kind of gear type blade pitch adjustment mechanism is provided, comprise propeller hub and blade, the root of its described blade is provided with the root axle that stretches into propeller hub, described propeller hub connects with blade by the propeller shank axle, it is characterized in that: described propeller hub comprises the first and second half propeller hubs, and the first and second half propeller hubs are the half-and-half structure; At the first and second half propeller hubs the fixed screw of propeller hub is set, with split type the first and second half propeller hubs that fasten in opposite directions fixed be one; On described propeller shank axle and the first half propeller hubs, gear type blade pitch control assembly is set; End at described propeller shank axle is provided with positioning retainer ring, and on the first and second half propeller hubs, correspondence is provided with detent.
The fixed screw of its described propeller hub is at least two, perpendicular to the axis setting of propeller shank axle.
Its described gear type blade pitch control assembly comprises the driven gear that is arranged on the propeller shank axle, be arranged on the driving gear adjustment hole on the first half propeller hubs and be arranged in the driving gear shaft of adjustment hole, at the end of driving gear shaft near the propeller shank axle, be provided with and driven gear ingear driving gear, at the other end of driving gear shaft, hexagonal formula adjustment hole in being provided with.
Between described driven gear and propeller shank axle, positioning key is set.
Its described driving gear and driven gear are that the bevel gear shaft that central axis is just intersecting is paid.
Described positioning retainer ring is fixed on the end of propeller shank axle through fastener; Described fastener is a flathead screw.
Periphery at described propeller shank axle is provided with lining.
The setting that closely cooperates between described propeller shank axle and first/the second half propeller hubs is consolidated in the propeller shank axle in the first and second half propeller hubs.
Compared with the prior art, the utility model has the advantages that:
1. adopt gear type blade pitch control assembly, regulate and rotate lightly, flexibly, accurate positioning saves time, laborsaving;
2. can regulate any pitch by customer requirements, setting range is big, and is easy to use;
3. the structure that adopts positioning retainer ring and detent to be complementary, good stability, no longitudinal travel;
4. propeller hub adopts the half-and-half structure, the tolerance clearance of blade and propeller hub can be reduced to zero, makes blade resetting error when variation pitch at every turn reduce to minimum.
Description of drawings
Fig. 1 is a gear type blade pitch adjustment mechanism structural representation;
Fig. 2 is the scheme drawing of fixed socket head cap screw position on the propeller hub.
1 is the first half propeller hubs among the figure, 2-1 is that driving gear, 2-2 are that driving gear shaft, 2-3 are that interior hexagonal formula adjustment hole, 2-4 are the driving gear adjustment hole, and 3 is driven gear, and 4-1 is a blade, 4-2 is the propeller shank axle, 5 is positioning key, and 6 is the second half propeller hubs, and 7 is lining, 8 is the fixed screw of propeller hub, 9 is flathead screw, and 10-1 is a positioning retainer ring, and 10-2 is a detent.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Among Fig. 1, this gear type blade pitch adjustment mechanism, comprise propeller hub and blade 4-1, the root of its described blade is provided with the root axle 4-2 that stretches into propeller hub, described propeller hub connects with blade by the propeller shank axle, its inventive point is: described propeller hub comprises that the first half propeller hubs 1 and the second half propeller hub 6, the first and second half propeller hubs are the half-and-half structure; At the first and second half propeller hubs the fixed screw 8 of propeller hub is set, with split type the first and second half propeller hubs that fasten in opposite directions fixed be one; On described propeller shank axle and the first half propeller hubs, gear type blade pitch control assembly is set; In the end of described propeller shank axle, positioning retainer ring 10-1 is set, on the first and second half propeller hubs, correspondence is provided with detent 10-2.
The fixed screw of its propeller hub is at least two, perpendicular to the axis setting of propeller shank axle.
Its gear type blade pitch control assembly comprises the driven gear 3 that is arranged on the propeller shank axle, be arranged on the driving gear adjustment hole 2-4 on the first half propeller hubs and be arranged in the driving gear shaft 2-2 of adjustment hole, at the end of driving gear shaft near the propeller shank axle, be provided with and driven gear ingear driving gear 2-1, at the other end of driving gear shaft, hexagonal formula adjustment hole 2-3 in being provided with.
Between driven gear and propeller shank axle, positioning key 5 is set.
Its driving gear and driven gear are that the bevel gear shaft that central axis is just intersecting is paid.
Positioning retainer ring 10-1 is fixed on the end of propeller shank axle through fastener, and fastener is a flathead screw 9.
In the periphery of propeller shank axle, lining 7 is set.
The setting that closely cooperates between propeller shank axle and first/the second half propeller hubs is consolidated in the propeller shank axle in the first and second half propeller hubs
The transmitting ratio of master/slave moving gear was advisable with 4: 1, by the transmission that master/slave dynamic bevel gear axle is paid, can realize accurately regulating the purpose of any blade pitch.
The purpose of positioning retainer ring/detent is set, and is to guarantee that blade does not outwards produce longitudinal travel when regulating.
Fig. 2 is actually among Fig. 1 the A of the first and second half propeller hubs to view, and as seen from the figure, the first half propeller hubs 1 and the second half propeller hubs 6 are half-and-half split/fastening structure; At the first and second half propeller hubs the fixed screw 8 of propeller hub is set symmetrically, with split type the first and second half propeller hubs that fasten in opposite directions fixed be one.
The fixed screw of its propeller hub is at least two, perpendicular to the axis setting of propeller shank axle, for the consideration of being convenient to process with handled easily, is advisable to select socket head cap screw for use.When reality is used, for stressed evenly, the consideration of aspect such as accurate positioning, assurance blade pitch be reliable and stable, the fixed screw 8 of propeller hub is advisable to be symmetrical arranged four; By fixing of four screws, can reduce the tolerance clearance of blade and propeller hub, resetting accuracy rate height; Unscrew screw during adjusting, regulate the back lock screw, the fastening blade of propeller hub has guaranteed that blade pitch is reliable and stable, firmly constant.
During practical operation, first/the second half propeller hub 1 and 6 is fixed blade 4-1 by 4 fixed socket head cap screws 8 of propeller hub; Unscrew four fixed socket head cap screws 8 of propeller hub before regulating blade pitch, make blade spindle free to rotate, this moment, available inner-hexagon spanner rotated the interior hexagonal formula adjustment hole of driving gear shaft, the rotation of paying by bevel drive, make the positioning key 5 on the propeller shank axle 4-2 and then drive blade 4-1 and rotate, turn to the angle that needs until blade and end.Regulate as stated above be positioned at the angle of each blade on the same propeller hub after, the fixed socket head cap screw 8 of four propeller hubs on the locking propeller hub get final product, whole control process regulates easily, puts in place conveniently, flexibly, adjusting efficient height.
Especially, the applicant thinks, concerning those skilled in the art, according to above technical scheme and embodiment, can associate being equal to of other at an easy rate and replace and/or distortion.Therefore, the utility model is not limited to above-mentioned specific embodiment, and it carries out detailed and/or exemplary explanation as just example to the technical solution of the utility model.
In the scope that does not deviate from the present utility model aim, those of ordinary skill in the art, can be according to technique scheme and/or specific embodiment, be equal to replacement by various, obtain having the technical scheme of identical or close technical functionality, but these technical schemes all should be included in the scope of claim of the present utility model and the scope that is equal within.
The screw pitch of propeller blades that the utility model can be widely used in various screw propeller design, exploitation, the process of the test is regulated the field.
Claims (9)
1. a gear type blade pitch adjustment means that is used for the model controllable pitch propeller comprises propeller hub and blade, and the root of its described blade is provided with the root axle that stretches into propeller hub, and described propeller hub connects with blade by the propeller shank axle, it is characterized in that:
Described propeller hub comprises the first and second half propeller hubs, and the first and second half propeller hubs are the half-and-half structure;
At the first and second half propeller hubs the fixed screw of propeller hub is set, with split type the first and second half propeller hubs that fasten in opposite directions fixed be one;
On described propeller shank axle and the first half propeller hubs, gear type blade pitch control assembly is set;
End at described propeller shank axle is provided with positioning retainer ring, and on the first and second half propeller hubs, correspondence is provided with detent.
2. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 1, it is characterized in that the fixed screw of described propeller hub is at least two, perpendicular to the axis setting of propeller shank axle.
3. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 1, it is characterized in that described gear type blade pitch control assembly comprises the driven gear that is arranged on the propeller shank axle, is arranged on the driving gear adjustment hole on the first half propeller hubs and is arranged in the driving gear shaft of adjustment hole, at the end of driving gear shaft near the propeller shank axle, be provided with and driven gear ingear driving gear, at the other end of driving gear shaft, hexagonal formula adjustment hole in being provided with.
4. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 3, it is characterized in that between described driven gear and propeller shank axle, positioning key being set.
5. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 3, it is characterized in that described driving gear and driven gear are that the bevel gear shaft that central axis is just intersecting is paid.
6. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 1, it is characterized in that described positioning retainer ring is fixed on the end of propeller shank axle through fastener.
7. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 6, it is characterized in that described fastener is a flathead screw.
8. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 1, it is characterized in that lining being set in the periphery of described propeller shank axle.
9. according to the described gear type blade pitch adjustment means that is used for the model controllable pitch propeller of claim 1, it is characterized in that the setting that closely cooperates between described propeller shank axle and first/the second half propeller hubs, the propeller shank axle is consolidated in the first and second half propeller hubs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201563761U CN201300987Y (en) | 2008-12-02 | 2008-12-02 | Gear transmission type blade pitch regulation device for model adjustable propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201563761U CN201300987Y (en) | 2008-12-02 | 2008-12-02 | Gear transmission type blade pitch regulation device for model adjustable propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201300987Y true CN201300987Y (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201563761U Expired - Fee Related CN201300987Y (en) | 2008-12-02 | 2008-12-02 | Gear transmission type blade pitch regulation device for model adjustable propeller |
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| Country | Link |
|---|---|
| CN (1) | CN201300987Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228532A (en) * | 2010-07-15 | 2013-07-31 | 麦克斯普罗普有限公司 | Feathering propeller with blade dampening at forward and backward motion and blades pitch control during backward motion |
| CN104816809A (en) * | 2014-02-03 | 2015-08-05 | 姚元恺 | Adjusting mechanism for hydraulic wheel gear and wheel rack auxiliary blade |
-
2008
- 2008-12-02 CN CNU2008201563761U patent/CN201300987Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228532A (en) * | 2010-07-15 | 2013-07-31 | 麦克斯普罗普有限公司 | Feathering propeller with blade dampening at forward and backward motion and blades pitch control during backward motion |
| CN104816809A (en) * | 2014-02-03 | 2015-08-05 | 姚元恺 | Adjusting mechanism for hydraulic wheel gear and wheel rack auxiliary blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20100104 |