CN101602399B - Propeller hub - Google Patents
Propeller hub Download PDFInfo
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- CN101602399B CN101602399B CN2009101822233A CN200910182223A CN101602399B CN 101602399 B CN101602399 B CN 101602399B CN 2009101822233 A CN2009101822233 A CN 2009101822233A CN 200910182223 A CN200910182223 A CN 200910182223A CN 101602399 B CN101602399 B CN 101602399B
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- saddle
- piston
- blade
- chamber
- propeller hub
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Abstract
The invention relates to a propeller hub, which comprises an oil cylinder body, a hub, a piston, a blade disc root, a sliding block, a guide frame, blade root bolts and a screw shaft provided with inner and outer oil pipes, wherein the oil cylinder body is connected with the hub; the piston is positioned in the oil cylinder body; the outer wall of the guide frame is in sliding connection with the inner edge of the central hole of the hub; and the hub is connected with the screw shaft through a flange blot. The propeller hub is characterized in that: the piston is arranged on the end of the guide frame inside the hub by a bolt; a chamber between the front end of the piston and the inner wall of the oil cylinder body is a front chamber; a chamber enclosed by the piston, the inner cavity of the guide frame and the end part of the screw shaft inserted into the inner cavity of the guide frame is a rear chamber; the sliding block is arranged in a chute arranged on the outer wall of the guide frame; the root part of the blade disk root is provided with a pin which is inserted into the sliding block and is in movable connection with the sliding block; the outer oil pipe in the screw shaft is communicated with the rear chamber; the inner oil pipe passes through the rear chamber and the piston to be communicated with the front chamber; and the blade disc root is provided with blade root blots for fixing blade roots, the front ends of the blade root bolts incline toward blade axes, and the elongation lines of the front ends of the blade root bolts form 5 to 15 degree angle with the blade axes.
Description
Technical field
The present invention relates to a kind of propulsion of ship screw propeller, especially a kind ofly can be applied to promote mainly into, the ship propeller hub of thruster, full circle swinging.
Background technology
Propeller hub is the key position in the screw propeller boats and ships propulsion system, in case go wrong steamer is caused tremendous loss, in the structure of existing propeller hub; Fixedly the blade root screw of blade root generally is perpendicular to axis of runner blade; This structure torsion pass is little, often needs a plurality of blade root screws (to adopt 7 generally speaking, 4 on blade face; 3 of blade backs) just can bear in the work huge torque and moment of flexure in the formation of blade root; Too much blade root screw is not only installed inconvenience, but also can form too much mounting hole the blade root of blade, influences the mechanical strength of blade root.
After connecting between existing saddle and the piston, piston left and right sides area of thrust surface differ greatly, and cause regulating the difference of oil pressure, thereby hydraulic oil is when getting into piston right-side cavity realization mechanism kinematic, and needed pressure left side relatively wants high.
Summary of the invention
The objective of the invention is to: the structure torsion pass to blade root screw in the present propeller hub exists is little, usage quantity is many, installation is inconvenient, and piston left and right sides area of thrust surface a series of problems such as differ greatly, and a kind of new propeller hub is provided.
The objective of the invention is to realize like this: a kind of propeller hub; Comprise: cylinder body, propeller hub, piston, blade packing, slide block, saddle, blade root screw, be provided with the stern tube shaft of inside and outside oil pipe; Cylinder body is connected with propeller hub, and piston is positioned at cylinder body, saddle outer wall and propeller hub centre hole inner edge sliding block joint; Propeller hub is connected with stern tube shaft through flange screw, it is characterized in that:
A) piston is installed in propeller hub in-to-in saddle end through screw, and the chamber between the front end of piston and cylinder body inwall is a front chamber; Chamber between the stern tube shaft end of piston rear portion, saddle inner chamber and insertion saddle inner chamber is a rear chamber;
B) slide block places the chute of saddle outer wall; The root of blade packing is provided with pin, and pin inserts slide block and slide block flexibly connects;
C) outer oil pipe in the stern tube shaft and UNICOM of rear chamber; Inner oil tube passes rear chamber and piston and UNICOM of front chamber;
D) the fixing blade root screw of blade root on the blade packing, the front end of blade root screw tilts to axis of runner blade, and its extended line and axis of runner blade form 5～15 degree angles.
In the present invention: the external diameter of saddle leading portion is less than the external diameter of saddle back segment, the outer wall sliding block joint of the inner edge of propeller hub centre hole and saddle leading portion, and slide block places the chute of saddle back segment outer wall; The internal diameter of saddle leading portion is less than the internal diameter of saddle back segment, and stern tube shaft inserts saddle by the saddle rear end.
In the present invention: the chamber that piston rear portion, saddle outer wall and propeller hub and cylinder body form is a reinforcement rear chamber, links up through the oilhole on the saddle between rear chamber and the reinforcement rear chamber, and described oilhole is positioned at saddle front end next-door neighbour piston.
In the present invention: between the installation joint portion of piston and saddle end, piston outer rim and cylinder body inwall, inner oil tube passes through between the stern tube shaft axis body of joint portion, saddle outer wall and propeller hub centre hole inner edge joint portion and saddle inwall and insertion of piston and be equipped with sealing member.
The invention has the advantages that: the front end of the blade root screw of blade root tilts to axis of runner blade owing to be positioned on the blade packing fixedly; The extended line of blade root screw and axis of runner blade form 5～15 degree angles; Increased the torque transmission capacity of blade root screw; In the propeller hub of same size, can reduce the blade root screw and use number, cost-cutting; Owing in propeller hub, set up the reinforcement rear chamber of linking up with rear chamber, increased the area of thrust surface of piston, reduce system and come and gone the difference of pressure that exists in the adjusting.
Description of drawings:
Fig. 1 is the structural representation of instance of the present invention.
Part among the figure: 1, cylinder body, 2, propeller hub, 3, the blade packing, 4, slide block, 5, flange screw; 6, stern tube shaft, 7, outer oil pipe, 8, the blade root screw, 9, saddle, 10, inner oil tube; 11, piston, 12, front chamber, 13, rear chamber, 14, reinforcement rear chamber, 15, oilhole.
The specific embodiment
Accompanying drawing discloses concrete structure of the present invention without limitation, below in conjunction with accompanying drawing the present invention is done further description.
Visible by Fig. 1; The present invention includes: cylinder body 1, propeller hub 2, piston 11, blade packing 3, slide block 4, saddle 9, blade root screw 8, be provided with the stern tube shaft 6 of inner oil tube 10 and outer oil pipe 7; Cylinder body 1 is connected with propeller hub 2; Piston 11 is positioned at cylinder body 1, saddle 9 outer walls and propeller hub 2 centre hole inner edge sliding block joints, and propeller hub 2 is connected with stern tube shaft 6 through flange screw 5.Wherein: piston 11 is installed in propeller hub in-to-in saddle 9 ends through screw, and the chamber between the front end of piston 11 and cylinder body 1 inwall is a front chamber 12; Chamber between stern tube shaft 6 ends of piston 11, saddle 9 inner chambers and insertion saddle 9 inner chambers is a rear chamber 13; Slide block 4 places the chute of saddle 9 outer walls; The root of blade packing 3 is provided with pin, and pin inserts slide block 4 and flexibly connects with slide block 4; The pin of the chute of saddle 9, blade packing 3 and slide block 4 threes form a crank pin mechanism; Outer oil pipe 7 and 13 UNICOMs of rear chamber in the stern tube shaft 6; Inner oil tube 10 passes rear chamber 13 and piston 11 and 12 UNICOMs of front chamber; The fixing blade root screw 8 of blade root on the blade packing 3, the front end of blade root screw 8 tilts to axis of runner blade, and its extended line and axis of runner blade form 5～15 degree angles.
In the present embodiment: form reinforcement rear chamber 14 by piston 11 rear portions, saddle 9 outer walls and propeller hub 2 and cylinder body 1; Link up through the oilhole on the saddle 9 15 between rear chamber 13 and the reinforcement rear chamber 14, described oilhole 15 is positioned at saddle 9 front ends next-door neighbour piston 11.The external diameter of saddle 9 leading portions is less than the external diameter of saddle 9 back segments, the outer wall sliding block joint of the inner edge of propeller hub 2 centre holes and saddle 9 leading portions, and slide block 4 places the chute of saddle 9 back segment outer walls; The internal diameter of saddle 9 leading portions is less than the internal diameter of saddle 9 back segments, and stern tube shaft 6 inserts saddle by saddle 9 rear ends.Between the installation joint portion of piston 11 and saddle 9 ends, piston 11 outer rims and cylinder body 1 inwall, inner oil tube 10 passes through between the axis body of stern tube shaft 6 of joint portion, saddle 9 outer walls and propeller hub 2 centre hole inner edge joint portions and saddle 9 inwalls and insertion of piston 11 and is equipped with sealing member.
Piston 11 is work like this during use; When hydraulic oil gets into rear chamber 13 through outer oil pipe 7, get into reinforcement rear chamber 14 through oilhole 15 simultaneously, rear chamber 13 and the reinforcement rear chamber 14 common pistons 11 that promote are to left movement, and the hydraulic oil of front chamber 12 returns through inner oil tube 10 circulations; When hydraulic oil gets into front chamber 12 through inner oil tube 10, promote piston 11 and move right, the hydraulic oil of rear chamber 13 returns through outer oil pipe 7 circulations.Because piston 11 is connected in saddle 9 front ends; And can in cylinder body 1, slide; Directly drive saddle 9 moving linearlies; In the motion, the chute driving sliding block 4 of saddle 9 outer walls is slided in chute, forms crank pin mechanism drive blade packing 3 rotations by the chute of saddle 9, the pin and slide block 4 threes of blade packing 3.Because blade is captiveed joint with blade packing 3, the rotation of blade packing 3 has just changed the angle of blade, realizes the rotation roll adjustment of blade.
Claims (3)
1. propeller hub; Comprise: cylinder body, propeller hub, piston, blade packing, slide block, saddle, blade root screw, the stern tube shaft of inside and outside oil pipe is housed; Cylinder body is connected with propeller hub, and piston is positioned at cylinder body, saddle outer wall and propeller hub centre hole inner edge sliding block joint; Propeller hub is connected with stern tube shaft through flange screw, it is characterized in that:
A) piston is installed in propeller hub in-to-in saddle end through screw, and the chamber between the front end of piston and cylinder body inwall is a front chamber; Chamber between the stern tube shaft end of piston rear portion, saddle inner chamber and insertion saddle inner chamber is a rear chamber;
B) chamber of piston rear portion, saddle outer wall and propeller hub and cylinder body formation is a reinforcement rear chamber, links up through the oilhole on the saddle between rear chamber and the reinforcement rear chamber, and described oilhole is positioned at saddle front end next-door neighbour piston;
C) slide block places the chute of saddle outer wall; The root of blade packing is provided with pin, and pin inserts slide block and slide block flexibly connects;
D) outer oil pipe in the stern tube shaft and UNICOM of rear chamber; Inner oil tube passes rear chamber and piston and UNICOM of front chamber;
E) the blade packing is provided with the fixedly blade root screw of blade root, and the front end of blade root screw tilts to axis of runner blade, and its extended line and axis of runner blade form 5～15 degree angles.
2. propeller hub according to claim 1 is characterized in that: the external diameter of saddle leading portion is less than the external diameter of saddle back segment, the outer wall sliding block joint of the inner edge of propeller hub centre hole and saddle leading portion, and slide block places the chute of saddle back segment outer wall; The internal diameter of saddle leading portion is less than the internal diameter of saddle back segment, and stern tube shaft inserts saddle by the saddle rear end.
3. propeller hub according to claim 1 and 2 is characterized in that: between the installation joint portion of piston and saddle end, piston outer rim and cylinder body inwall, inner oil tube passes through between the stern tube shaft axis body of joint portion, saddle outer wall and propeller hub centre hole inner edge joint portion and saddle inwall and insertion of piston and be equipped with sealing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101822233A CN101602399B (en) | 2009-07-17 | 2009-07-17 | Propeller hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101822233A CN101602399B (en) | 2009-07-17 | 2009-07-17 | Propeller hub |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101602399A CN101602399A (en) | 2009-12-16 |
| CN101602399B true CN101602399B (en) | 2012-03-28 |
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ID=41468330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101822233A Active CN101602399B (en) | 2009-07-17 | 2009-07-17 | Propeller hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101602399B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108621060B (en) * | 2018-05-31 | 2020-03-10 | 武汉船用机械有限责任公司 | Positioning tool and method for oil pipe in adjustable propeller shaft |
| 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 |
| CN113859495B (en) * | 2021-09-30 | 2024-06-21 | 中国船舶重工集团公司第七0四研究所 | Adjustable pitch propeller hub suitable for high navigational speed |
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2009
- 2009-07-17 CN CN2009101822233A patent/CN101602399B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101602399A (en) | 2009-12-16 |
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