KR20160054104A - Apparatus of blade pitch control for ship - Google Patents
Apparatus of blade pitch control for ship Download PDFInfo
- Publication number
- KR20160054104A KR20160054104A KR1020140152813A KR20140152813A KR20160054104A KR 20160054104 A KR20160054104 A KR 20160054104A KR 1020140152813 A KR1020140152813 A KR 1020140152813A KR 20140152813 A KR20140152813 A KR 20140152813A KR 20160054104 A KR20160054104 A KR 20160054104A
- Authority
- KR
- South Korea
- Prior art keywords
- propeller
- hub
- piston
- shaft
- push
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
- B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
- B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
- B63H2003/088—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid characterised by supply of fluid actuating medium to control element, e.g. of hydraulic fluid to actuator co-rotating with the propeller
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A propeller pitch angle adjustment system according to an embodiment of the present invention includes a propeller shaft; A push-pull hub slidably provided on an outer side of the propeller shaft, the pusher hub including a piston projecting in a vertical direction and a rear end connected to a propeller to adjust a pitch angle of the propeller; And a cylinder provided on the outer side of the push-pull hub to allow the piston to pass therethrough, the oil flowing in and out of the piston to move the piston in the forward and backward directions.
The propeller pitch angle adjustment system according to the present invention can simplify the structure by adjusting the pitch angle of the propeller according to the flow of oil, and a push-pull hub for adjusting the pitch angle of the propeller is provided at the rear end of the gear box As well as being provided outside the gear box, so that the gear structure inside the gear box is not interfered with, so that the structure can be simplified.
Description
The present invention relates to a propeller pitch angle adjustment system.
The propeller is a device for propelling the ship by changing the power of the propulsion engine transmitted through the shaft system to thrust. Ship propellers include screw propellers, jet propellers, paddle cars, and void schneider propellers. Among them, helical propellers are the most popular because they have a relatively high propulsion efficiency, relatively simple structure, and relatively low production costs.
Spiral propellers can be classified by performance, with a fixed pitch propeller (FPP) fixed to a hub connected to a rotating shaft of the propeller wing, and a propeller wing can be moved in a hub connected to the rotary shaft, A controllable pitch propeller (CPP), a contra-rotating propeller that converts the rotational force exiting from the rear propeller to a propeller that rotates in the opposite direction to the rear propeller, propeller (CRP).
Particularly, a system for controlling the variable pitch of the variable pitch propeller has a structure in which the hydraulic mechanism is located inside the gear box, the structure is complicated due to the interference of the gear structure inside the gear box, and the maintenance is limited due to the complicated structure There is a problem.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a propeller pitch angle adjusting system capable of adjusting a pitch angle of a propeller through a simple structure.
A propeller pitch angle adjustment system according to an embodiment of the present invention includes a propeller shaft; A push-pull hub slidably provided on an outer side of the propeller shaft, the pusher hub including a piston projecting in a vertical direction and a rear end connected to a propeller to adjust a pitch angle of the propeller; And a cylinder provided on the outer side of the push-pull hub to allow the piston to pass therethrough, the oil flowing in and out of the piston to move the piston in the forward and backward directions.
Specifically, the cylinder includes: a first inlet and outlet hole through which oil flows in front of the piston so that the piston is pushed rearward; and a second inlet and outlet hole through which oil flows into the rear of the piston so that the piston is pushed forward Is formed.
Specifically, the CPP hub includes a CPP hub on which the propeller is provided, wherein a rear end of the push-pull hub is connected to the propeller, and a rear end of the push-pull hub is connected to a rear end of the propeller shaft.
Specifically, the push-pull hub is provided with an oil line passing through the propeller shaft so that the oil passes between the propeller shaft and the propeller shaft.
Specifically, the propeller shaft includes: a first shaft provided at the front; And a second shaft provided at the rear of the first shaft and having a smaller diameter than the first shaft, the second shaft being adapted to slide the push-pull hub.
The propeller pitch angle adjustment system according to the present invention can simplify the structure by adjusting the pitch angle of the propeller according to the flow of oil, and a push-pull hub for adjusting the pitch angle of the propeller is provided at the rear end of the gear box As well as being provided outside the gear box, so that the gear structure inside the gear box is not interfered with, so that the structure can be simplified.
1 is a view showing a state in which a pitch angle of a propeller is increased in a propeller pitch angle adjusting system according to an embodiment of the present invention.
FIG. 2 is an enlarged view of a push-pull hub with a pitch angle of a propeller increased in a propeller pitch angle adjusting system according to an embodiment of the present invention.
3 is a view showing a state in which the pitch angle of the propeller is reduced in the propeller pitch angle adjusting system according to the embodiment of the present invention.
4 is an enlarged view of a push-pull hub with a pitch angle of a propeller increased in a propeller pitch angle adjusting system according to an embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements have the same numerical numbers as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a view showing a state where a pitch angle of a propeller is increased in a propeller pitch angle adjusting system according to an embodiment of the present invention. FIG. 2 is a view showing a pitch angle of the propeller in the propeller pitch angle adjusting system according to an embodiment of the present invention. FIG. 3 is a view showing a state in which a pitch angle of a propeller is reduced in a propeller pitch angle adjusting system according to an embodiment of the present invention, and FIG. 4 is a cross- FIG. 2 is an enlarged view of a push-pull hub with a pitch angle of a propeller being increased in a propeller pitch angle adjusting system according to an embodiment of the present invention. FIG.
1 to 4, a propeller pitch
Here, the
In the following description, the
The
The
The
The
As such, the
The push-
That is, the push-
The push-
The push-
For example, the
The
For example, the
The first inlet and
The second inlet and
The push-
An
Hereinafter, the operation of the pitch angle variation of the
First, as shown in Figs. 1 and 2, the
The amount of oil behind the
On the other hand, as shown in Figs. 3 and 4, the
The amount of oil in front of the
As described above, according to the present embodiment, the structure can be simplified by adjusting the pitch angle of the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
100: propeller pitch angle adjustment system 110: propeller
111: crank disk 120: CPP hub
130:
130A:
140: Push-pull hub 141: Piston
144: Oil line 150: Cylinder
151: first inlet / outlet hole 152: second inlet / outlet hole
160: power source 170: gear box
Claims (5)
A push-pull hub slidably provided on an outer side of the propeller shaft, the pusher hub including a piston projecting in a vertical direction and a rear end connected to a propeller to adjust a pitch angle of the propeller; And
And a cylinder provided on an outer side of the push-pull hub to allow the piston to pass therethrough, the oil being flowed in and out of the cylinder to move the piston in the forward and backward directions.
A first inlet and outlet hole through which oil flows into the front of the piston so that the piston is pushed rearward and a second inlet and outlet hole through which oil flows into the rear of the piston so that the piston is pushed forward, Pitch angle adjustment system.
Further comprising a CPP hub on which the propeller is provided,
The CPP hub includes:
And a rear end of the push-pull hub is connected to the propeller, and a rear end of the hub is connected to a rear end of the propeller shaft.
Wherein the push-pull hub is provided with an oil line passing through the propeller shaft so that the oil passes between the propeller shaft and the propeller shaft.
A first shaft provided at a front side; And
And a second shaft provided behind the first shaft and having a smaller diameter than the first shaft, wherein the second shaft is slidably supported by the push-pull hub.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140152813A KR20160054104A (en) | 2014-11-05 | 2014-11-05 | Apparatus of blade pitch control for ship |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020140152813A KR20160054104A (en) | 2014-11-05 | 2014-11-05 | Apparatus of blade pitch control for ship |
Publications (1)
Publication Number | Publication Date |
---|---|
KR20160054104A true KR20160054104A (en) | 2016-05-16 |
Family
ID=56108910
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020140152813A KR20160054104A (en) | 2014-11-05 | 2014-11-05 | Apparatus of blade pitch control for ship |
Country Status (1)
Country | Link |
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KR (1) | KR20160054104A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113799952A (en) * | 2021-08-20 | 2021-12-17 | 中国船舶重工集团公司第七0四研究所 | Oil distribution sealing device with cooling function for controllable pitch propeller |
CN113859495A (en) * | 2021-09-30 | 2021-12-31 | 中国船舶重工集团公司第七0四研究所 | Controllable pitch propeller hub suitable for high navigational speed |
-
2014
- 2014-11-05 KR KR1020140152813A patent/KR20160054104A/en not_active Application Discontinuation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113799952A (en) * | 2021-08-20 | 2021-12-17 | 中国船舶重工集团公司第七0四研究所 | Oil distribution sealing device with cooling function for controllable pitch propeller |
CN113859495A (en) * | 2021-09-30 | 2021-12-31 | 中国船舶重工集团公司第七0四研究所 | Controllable pitch propeller hub suitable for high navigational speed |
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