CN112849379A - Double-gear-driven double-propeller adjustable-pitch full-rotation propeller - Google Patents
Double-gear-driven double-propeller adjustable-pitch full-rotation propeller Download PDFInfo
- Publication number
- CN112849379A CN112849379A CN202110205222.7A CN202110205222A CN112849379A CN 112849379 A CN112849379 A CN 112849379A CN 202110205222 A CN202110205222 A CN 202110205222A CN 112849379 A CN112849379 A CN 112849379A
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- propeller
- bevel gear
- pitch
- gear pair
- shaft
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- 230000005540 biological transmission Effects 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/10—Propeller-blade pitch changing characterised by having pitch control conjoint with propulsion plant control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/02—Transmitting power from propulsion power plant to propulsive elements with mechanical gearing
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a double-gear-driven double-propeller full-rotation propeller with adjustable pitch, which comprises a propeller body, a front propeller with variable pitch, a rear propeller with fixed pitch and an input shaft, wherein the bottom end of the input shaft is in transmission connection with a bevel gear pair through a coupler; the invention provides a high-efficiency and high-reliability ship propeller which is characterized in that a front propeller and a rear propeller are respectively driven by two pairs of spiral bevel gears, the variable-pitch front propeller is in a variable-pitch form, the fixed-pitch rear propeller is in a fixed-pitch form, two sets of transmission systems are mutually independent from the propellers, and one of the transmission systems is damaged without affecting the other propeller.
Description
Technical Field
The invention belongs to the technical field of ship propellers, and particularly relates to a double-gear-driven double-propeller pitch-adjustable full-rotation propeller.
Background
Since the invention of the steam engine, there are many researches on the use of steam power by ships, the propeller which is designed and tested comprises a small boat, a motor paddle, a paddle wheel, a propeller and the like, the propeller is the mainstream ship propulsion device until now, the power transmission design of the propeller is that a single gear drives a single propeller and a single gear drives two contra-rotating propellers, the two types of propellers are limited by the strength of the gear, the single-machine input power is below 5 megawatts, the reliability is not high, the power matching of the paddle wheel is not good, the torque safety coefficient is low, and if the gear or the bearing is damaged, the whole propeller loses the function.
Disclosure of Invention
The invention aims to provide a double-gear-driven double-propeller full-rotation propeller with adjustable pitch, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: the double-gear-driven double-propeller adjustable-pitch full-rotation propeller comprises a propeller body, a variable-pitch front propeller, a fixed-pitch rear propeller and an input shaft, wherein the bottom end of the input shaft is in transmission connection with a bevel gear pair through a coupler, a front transmission shaft and a rear transmission shaft are respectively arranged on two sides of the bevel gear pair, the front transmission shaft and the rear transmission shaft are parallel to the bevel gear pair, a front bevel gear pair is arranged at the bottom end of the front transmission shaft, a front thrust shaft horizontally arranged is arranged at the lower part of the front bevel gear pair, a variable-pitch propeller hub is arranged at one end, far away from the front bevel gear pair, of the front bevel gear pair, a variable-pitch front propeller is arranged on the variable-pitch propeller hub, a rear bevel gear pair is arranged at the bottom end of the rear transmission shaft, a rear thrust shaft horizontally arranged at the lower part of the rear bevel gear pair is arranged, one end, far away from the rear bevel gear pair, of the rear thrust shaft is provided with the fixed, the front thrust shaft and the rear thrust shaft are positioned on the same straight line, and the front bevel gear pair, the rear bevel gear pair, the front thrust shaft and the rear thrust shaft are uniformly distributed in the gear box shell.
Preferably, the inside of propeller body is located to helical gear pair, preceding transmission shaft and rear drive axle equipartition, and the top of propeller body is provided with mounting flange, and slewing gear is installed at mounting flange's top, and the last transmission of slewing gear is connected with rotation mechanism, and the last transmission of rotation mechanism is connected with the rotary motor.
Preferably, the one end fixing of gearbox casing is provided with preceding protection casing, the other end fixing of gearbox casing is provided with the back protection casing.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a high-efficiency and high-reliability ship propeller which is characterized in that a front propeller and a rear propeller are respectively driven by two pairs of spiral bevel gears, the variable-pitch front propeller is in a variable-pitch form, the fixed-pitch rear propeller is in a fixed-pitch form, two sets of transmission systems and the propellers are mutually independent, one set of transmission systems is damaged without influencing the use of the other set of transmission systems, the safety redundancy is high, the reliability is high, and the ship propeller has 2 times of input power of a common single-gear propeller under the same size.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of the overall internal structure of the present invention;
fig. 2 is an overall external left side structural view of the present invention.
In the figure: 1. an input shaft; 2. a coupling; 3. a helical gear pair; 4. a front drive shaft; 5. a front bevel gear pair; 6. a variable pitch hub; 7. a variable pitch front propeller; 8. a front shield; 9. a forward thrust shaft; 10. a gearbox housing; 11. a rear thrust shaft; 12. a fixed pitch rear propeller; 13. a rear shield; 14. a rear bevel gear pair; 15. a rear drive shaft; 16. a propeller body; 17. installing a flange; 18. a rotary gear; 19. a swing mechanism; 20. a rotary motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "front", "rear", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the present invention provides a technical solution: a double-gear-driven double-propeller pitch-adjustable full-rotation propeller comprises a propeller body 16, a variable pitch front propeller 7, a fixed pitch rear propeller 12 and an input shaft 1, wherein the bottom end of the input shaft 1 is in transmission connection with a bevel gear pair 3 through a coupler 2, a front transmission shaft 4 and a rear transmission shaft 15 are respectively arranged on two sides of the bevel gear pair 3, the front transmission shaft 4 and the rear transmission shaft 15 are parallel to the bevel gear pair 3, a front bevel gear pair 5 is arranged at the bottom end of the front transmission shaft 4, a horizontally arranged front thrust shaft 9 is arranged at the lower part of the front bevel gear pair 5, a variable pitch propeller hub 6 is arranged at one end, far away from the front bevel gear pair 5, of the front thrust shaft 9, a variable pitch front propeller 7 is arranged on the variable pitch propeller hub 6, a rear bevel gear pair 14 is arranged at the bottom end of the rear transmission shaft 15, a horizontally arranged rear thrust shaft 11 is arranged at the lower part of the rear bevel gear pair 14, a fixed pitch type rear propeller 12 is installed at one end, far away from the rear bevel gear pair 14, of the rear thrust shaft 11, the front thrust shaft 9 and the rear thrust shaft 11 are located on the same straight line, and the front bevel gear pair 5, the rear bevel gear pair 14, the front thrust shaft 9 and the rear thrust shaft 11 are uniformly distributed in the gear box shell 10.
The bevel gear pair 3, the front transmission shaft 4 and the rear transmission shaft 15 are uniformly distributed in the propeller body 16, the top of the propeller body 16 is provided with a mounting flange 17, the top of the mounting flange 17 is provided with a rotary gear 18, the rotary gear 18 is in transmission connection with a rotary mechanism 19, and the rotary mechanism 19 is in transmission connection with a rotary motor 20.
A front protective cover 8 is fixedly arranged at one end of the gear box shell 10, and a rear protective cover 13 is fixedly arranged at the other end of the gear box shell 10.
The working principle and the using process of the invention are as follows: the power is input from the input shaft 1, transmitted to the bevel gear pair 3 through the coupler 2, and distributed to the front transmission shaft 4 and the rear transmission shaft 15 by the bevel gear pair 3, the front transmission shaft 4 drives the front bevel gear pair 5 to rotate, thereby driving the front variable pitch propeller 7 to rotate, the pitch angle of the front variable pitch propeller 7 is controlled through the variable pitch propeller hub 6, thereby controlling the thrust, meanwhile, the other part of the power drives the rear bevel gear pair 14 to rotate by the rear transmission shaft 15, thereby driving the rear fixed pitch propeller 12 to rotate, thereby generating fixed thrust, when needing to turn, the turning mechanism 19 is driven to rotate forward and backward by the turning motor 20, the turning gear 18 is driven to rotate by the turning mechanism 19, thereby driving the whole propeller to rotate by 360 degrees, thereby providing thrust in any direction of 360 degrees.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a full gyration propeller of adjustable pitch of double gear drive double screw, includes propeller body (16), screw (7) and fixed pitch formula rear propeller (12) before variable pitch formula, its characterized in that: the variable pitch propeller is characterized by further comprising an input shaft (1), the bottom end of the input shaft (1) is in transmission connection with a bevel gear pair (3) through a coupler (2), a front transmission shaft (4) and a rear transmission shaft (15) are respectively arranged on two sides of the bevel gear pair (3), the front transmission shaft (4) and the rear transmission shaft (15) are parallel to the bevel gear pair (3), a front bevel gear pair (5) is arranged at the bottom end of the front transmission shaft (4), a horizontally arranged front thrust shaft (9) is arranged at the lower part of the front bevel gear pair (5), a variable pitch propeller hub (6) is arranged at one end, far away from the front bevel gear pair (5), of the front thrust shaft (9), a variable pitch front propeller (7) is arranged on the variable pitch propeller hub (6), a rear bevel gear pair (14) is arranged at the bottom end of the rear transmission shaft (15), a horizontally arranged rear thrust shaft (11) is arranged at the lower part of the rear bevel gear pair (14), the rear propeller is characterized in that one end, far away from a rear bevel gear pair (14), of the rear thrust shaft (11) is provided with a fixed pitch type rear propeller (12), the front thrust shaft (9) and the rear thrust shaft (11) are located on the same straight line, and the front bevel gear pair (5), the rear bevel gear pair (14), the front thrust shaft (9) and the rear thrust shaft (11) are uniformly distributed in the gear box shell (10).
2. A double-gear driven double-propeller pitch-adjustable full-revolving propeller according to claim 1, characterized in that: the propeller is characterized in that the bevel gear pair (3), the front transmission shaft (4) and the rear transmission shaft (15) are uniformly distributed in the propeller body (16), a mounting flange (17) is arranged at the top of the propeller body (16), a rotary gear (18) is installed at the top of the mounting flange (17), a rotary mechanism (19) is in transmission connection with the rotary gear (18), and a rotary motor (20) is in transmission connection with the rotary mechanism (19).
3. A double-gear driven double-propeller pitch-adjustable full-revolving propeller according to claim 1, characterized in that: the one end fixing of gear box casing (10) is provided with preceding protection casing (8), the other end fixing of gear box casing (10) is provided with back protection casing (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110205222.7A CN112849379A (en) | 2021-02-23 | 2021-02-23 | Double-gear-driven double-propeller adjustable-pitch full-rotation propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110205222.7A CN112849379A (en) | 2021-02-23 | 2021-02-23 | Double-gear-driven double-propeller adjustable-pitch full-rotation propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112849379A true CN112849379A (en) | 2021-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110205222.7A Withdrawn CN112849379A (en) | 2021-02-23 | 2021-02-23 | Double-gear-driven double-propeller adjustable-pitch full-rotation propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112849379A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636054A (en) * | 2021-06-04 | 2021-11-12 | 东台市水洲盈华船舶配件有限公司 | Double-propeller type underwater propeller |
| CN114379751A (en) * | 2021-12-31 | 2022-04-22 | 武汉理工大学 | Contra-rotating propeller propulsion device capable of adjusting blade distance between front propeller and rear propeller |
-
2021
- 2021-02-23 CN CN202110205222.7A patent/CN112849379A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113636054A (en) * | 2021-06-04 | 2021-11-12 | 东台市水洲盈华船舶配件有限公司 | Double-propeller type underwater propeller |
| CN114379751A (en) * | 2021-12-31 | 2022-04-22 | 武汉理工大学 | Contra-rotating propeller propulsion device capable of adjusting blade distance between front propeller and rear propeller |
| CN114379751B (en) * | 2021-12-31 | 2023-03-14 | 武汉理工大学 | Contra-rotating propeller propulsion device capable of adjusting blade distance between front propeller and rear propeller |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210528 |
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| WW01 | Invention patent application withdrawn after publication |