CN110525622A - A kind of Shaftless propeller - Google Patents
A kind of Shaftless propeller Download PDFInfo
- Publication number
- CN110525622A CN110525622A CN201910932163.6A CN201910932163A CN110525622A CN 110525622 A CN110525622 A CN 110525622A CN 201910932163 A CN201910932163 A CN 201910932163A CN 110525622 A CN110525622 A CN 110525622A
- Authority
- CN
- China
- Prior art keywords
- propeller
- bearing
- wheel hub
- thrust unit
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 5
- 239000010985 leather Substances 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 30
- 239000000446 fuel Substances 0.000 abstract description 7
- 241000272525 Anas platyrhynchos Species 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010720 hydraulic oil Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 241001474374 Blennius Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Abstract
The invention discloses a kind of novel Shaftless propeller, wheel hub, propeller, rotation oil distributing valve and holddown spring including at least three thrust units, off-centre operation structure；The thrust unit is uniformly distributed on the shell, and off-centre operation is pushed to make plane motion, then propeller is driven to make rotating motion；Using hydraulic oil, as power source, the control to propeller rotation speed may be implemented by changing the fuel feeding frequency of rotation oil distributing valve to each thrust unit fuel feeding by rotation oil distributing valve in the present invention.Relative to there is duck propeller Z, cast out complicated transmission mechanism and deceleration mechanism, reduces volume, it can be achieved that stepless time adjustment, speed adjustable range is big, maneuvering performance is good, and the torque of generation is big, good heat dissipation effect.
Description
Technical field
The invention belongs to propeller technical field, in particular to a kind of Shaftless propeller.
Background technique
Currently, most propeller is all the arrangement form that propeller blade rotation is driven using motor output shaft,
There is duck propeller Z.There is the principle of duck propeller Z fairly simple, by taking marine propeller as an example, power is usually set on ships
Cabin, piggyback pod is interior to install internal combustion engine, and the power of internal combustion engine passes through main shaft again and connects propeller, and last main shaft drives propeller rotation
Generate thrust.It is several obvious to have the shortcomings that axis propulsion system has: (1) shafting for being used to transfer power to propeller can interfere to flow
Body passes through propeller, so that such as seaweed or similar substance can be wrapped on propeller；(2) with the increase of main engine power,
The volume of Propulsion Systems can become very big, and structure meeting complex, the requirement of heat dissipation also gradually increases；(3) Propulsion Systems length
Increase and sealing system presence so that propulsion system is lost increase in energy transfer process, transmission efficiency is reduced, and is increased
Use cost.
Moreover, traditional marine propuision system has gradually shown its disadvantage, nothing with the development of larger-sized vessel
Method preferably meets job requirement, and Shaftless propeller is just suggested.
Most earlier than 2005 USNs propose Shaftless propeller, are mainly used for submarine.The country, Ma Weiming academician is also to nothing
Duck propeller Z does excessive quantifier elimination work, and also has engineering practice.Its basic structure is typically all to be made of stator, rotor
(such as 107719613 A of patent CN), stator in a ring, is fixed on hull, and stator is equipped with around electric wire group；Rotor is also ring
Shape structure, generally permanent magnet, rotor are mounted on stator by bearing, stator and rotor coaxial line, and in rotor inner surface
Multiple blades are installed；When work, stator indirect current generates alternating electromagnetic field, cooperates permanent magnet rotor, rotor is allowed to rotate
Then propeller rotational is driven.The Shaftless propeller of such structure has duck propeller Z relative to above-mentioned, and volume is smaller, transmission
Efficiency also greatly improves.But it is only applicable to the relatively small occasion of power and still remains volume once power demand is big
Greatly, the defects of heat dissipation is difficult, and energy loss is big, at high cost and difficult in maintenance.
Summary of the invention
In order to overcome the shortcomings of that prior art, the present invention propose a kind of Shaftless propeller, in conjunction with hydraulic-driven technology,
Pressure oil is implanted sequentially in each thrust unit by input terminal using a kind of rotation oil distributing valve, pushes capacity eccentric bearing outer ring flat
It shakes in face；Output end is capacity eccentric bearing inner ring；The plane of capacity eccentric bearing outer ring is shaken, and is converted into the rotation of inner ring, is then driven
Wheel hub and propeller rotation output；By changing rotation oil distributing valve to the fuel feeding frequency of each thrust unit, can control shaftless
The output revolving speed of propeller.
In order to realize the above functions, the present invention provides a kind of Shaftless propellers, including motor, rotation oil distributing valve and rotation
Propulsion device；The rotary propelling device include wheel hub, shell, holddown spring, end cap, first bearing, second bearing, retaining ring,
Thrust unit, sealing ring and axial seal；The wheel hub is the hollow shaft with off-centre operation section, including off-centre operation section, concentric circles section
And propeller；The first bearing is mounted on the concentric circles section of the wheel hub；The inner ring of the second bearing and the off-centre operation
Section interference fit；It is close to always with the outer ring of the second bearing by the holddown spring end of the thrust unit；Institute
It is multiple to state thrust unit quantity, is evenly arranged on the shell excircle；The shell and the first bearing concentric；The spiral shell
Rotation paddle is fixed in the hollow shaft of the wheel hub；The right end cap is fixed by screws on the shell；The axial seal
It is arranged in the wheel hub two sides；The retaining ring compresses the inner ring of the second bearing.
As an embodiment, the wheel hub is hollow shaft, is off-centre operation section in the middle part of hollow shaft outer diameter, two sides are same
The heart justifies section, and concentric circles section and the shell are concentric, and off-centre operation section and the second bearing inner ring fasten.
As an embodiment, rotate oil distributing valve described in the motor driven, by high pressure oil according to certain frequency according to
The secondary injection thrust unit；Adjust the output revolving speed that the Shaftless propeller is adjusted in the motor speed.
As an embodiment, the thrust unit is plunger case.
As an embodiment, the thrust unit is with the oil-filled leather bag of elasticity, and oil-filled, leather bag expands against
Capacity eccentric bearing.
As an embodiment, the thrust unit quantity has multiple, is evenly arranged on the excircle of the shell.
As an embodiment, the propeller is fixed in the hollow shaft of the wheel hub, together with the wheel hub
Rotation.
The invention adopts the above technical scheme, at least have it is following the utility model has the advantages that
1, drive part and propeller are become one without shaft-driven propeller based on this, avoided using electricity
Required matched transmission mechanism improves the utilization in space so that the volume of propeller greatly reduces with deceleration mechanism when machine
Rate.
2, based on the propeller of this shaftless wheel rim driving, so that such as seaweed or similar substance will not be wrapped in propulsion
On device.
3, this propeller is based on hydraulic-driven, and can realize stepless time adjustment by rotation oil distributing valve, and speed adjustable range is big, manipulation
Performance is good, and because of the big feature of hydraulic power density, the torque that driver generates is bigger.
4, compared to the structure of stator, rotor, this driver uses hydraulic-driven, and not only power output is bigger, and generate
Heat less, while using the hydraulic leakproofness for also ensuring device can further simplify the complexity of driving device.
Detailed description of the invention
Fig. 1 is the overall structure diagram of Shaftless propeller provided by the invention；
Fig. 2 is the internal structure cross-sectional view of the rotary propelling device of Shaftless propeller provided by the invention；
Fig. 3 is the principle of propeller schematic diagram that the rotary propelling device of Shaftless propeller provided by the invention is implemented；
Wherein, Fig. 3 a is the motion conditions schematic diagram of wheel hub eccentric segment when thrust unit t4 drives second bearing；
Fig. 3 b is the motion conditions schematic diagram of wheel hub eccentric segment when thrust unit t5 drives second bearing；
Fig. 3 c is the motion conditions schematic diagram of wheel hub eccentric segment when thrust unit t1 drives second bearing.
Specific embodiment
Below in conjunction with attached drawing, the technical characteristic and advantage above-mentioned and other to the present invention carry out clear, are fully described by, aobvious
So, described embodiment is only section Example of the invention, instead of all the embodiments.
As shown in Figure 1, being overall structure diagram of the invention, including rotary propelling device 11, motor 12 and rotation are matched
Oil valve 13.
As shown in Fig. 2, being the internal structure cross-sectional view of Shaftless propeller provided in an embodiment of the present invention, including wheel hub 1, wheel
Hub off-centre operation section 111, wheel hub concentric circles section 112, propeller 113, shell 2, retaining ring 3, thrust unit 4, holddown spring 5, end cap
6, axial seal 7, sealing ring 8, first bearing 9 and second bearing 10.
Wherein, wheel hub 1 is the hollow shaft with off-centre operation section, including hub-eccentric circle section 111,112 He of wheel hub concentric circles section
Propeller 113, concentric circles section 112 and 113 concentric of shell 2 and propeller；The inner ring and 111 mistake of off-centre operation section of second bearing 10
It is full of cooperation；Thrust unit 4 guarantees that its end is close to the outer ring of second bearing 10 always by holddown spring 5；Thrust unit 4
Quantity have multiple, be evenly arranged on 2 excircle of shell；Shell 2 and first bearing 9, wheel hub concentric circles section 112 and propeller 113
Concentric；Propeller 113 is fixed in the hollow shaft of wheel hub 1, is rotated together with wheel hub 1；End cap 6 is fixed by screws in shell
On 2；First bearing 9 is mounted on the concentric shaft part 112 of wheel hub 1；Axial seal 7 is arranged in 1 two sides of wheel hub；Retaining ring 3 is arranged in
The off-centre operation section of wheel hub 1 and the inner ring for compressing second bearing 10.
As shown in figure 3, being the front schematic layout pattern of wheel hub 1, off-centre operation 111 is set to the middle part of wheel hub 1；Rotation is with oil
Valve 13 successively to 4 fuel feeding of thrust unit when, the end of thrust unit 4 successively ejects an eccentric distance, pushes off-centre operation section
111 make plane shaking.Wherein, t1, t2, t3, t4 and t5 respectively indicate each thrust unit.
When Shaftless propeller of the invention works, is rotated by motor 12 and rotation oil distributing valve 13 is driven to rotate, rotate oil distributing valve
Successively high pressure oil is fed in each thrust unit 4 when 13 rotation, and when rotation oil distributing valve 13 is supplied to some thrust unit 4
When high pressure oil, the oil circuit of remaining thrust unit 4 is connect with fuel tank；Therefore, when high pressure oil is passed into some thrust by oil distributing valve 13
When 4 when unit, this thrust unit 4 will stretch out an eccentricity distance, and the outer ring of second bearing 10 is pushed to translate a distance,
Then it drives the inner ring of second bearing 10 to rotate an angle around off-centre operation, and then rotates an equal angle with runner hub 1
Degree；When oil distributing valve 13, which is implanted sequentially high pressure oil, enters thrust unit 4, thrust unit 4 will successively eject an eccentricity
Distance, and the outer ring of second bearing 10 is successively pushed, allow the outer ring of second bearing 10 to do plane shaking around off-centre operation, then band
The inner ring of dynamic second bearing 10 is rotated around off-centre operation, and then is rotated with runner hub 1, and propeller 113 also makes rotating motion together.
Also, in this embodiment, the revolving speed of Shaftless propeller can be adjusted by the revolving speed of rotation oil distributing valve 13: rotation
The revolving speed for turning oil distributing valve 13 changes so that the frequency of 4 oiling of thrust unit changes, namely thrust unit 4 is made to push second
The frequency of the outer ring of bearing outer 10 will change, then the speed that second bearing 10 does plane shaking will change,
That is the output revolving speed of wheel hub 1 changes namely the output revolving speed of propeller changes.
In embodiments of the present invention, in order to increase the output torque of propeller 113, rotation oil distributing valve 15 can make two or
Three thrust units 4 of person while fuel feeding, under the premise of eccentricity is constant, the thrust of generation is bigger, and the torque of output also will more
Greatly.
The rotation resolution ratio of the quantity of thrust unit 4 according to demand determines, more quantity, each thrust unit top
Out, the rotation angle of wheel hub will be smaller；When two thrust units work together, the force direction of thrust be exactly two simultaneously
The resultant direction of the thrust unit of work；The general at least three of the quantity of thrust unit.
The Shaftless propeller of the application, wheel hub 1, propeller including at least three 4, off-centre operation structures of thrust unit
113, oil distributing valve 13 and holddown spring 5 are rotated；The thrust unit 4 is evenly distributed on shell 2, pushes hub-eccentric circle section
111 make plane motion, then propeller 113 are driven to make rotating motion；The present invention, as power source, passes through rotation using hydraulic oil
Each 4 fuel feeding of thrust unit may be implemented to propeller by changing the fuel feeding frequency of rotation oil distributing valve 13 for oil distributing valve 13
The control of 113 rotation speeds.Relative to there is duck propeller Z, casts out complicated transmission mechanism and deceleration mechanism, reduced volume, it can
Realize stepless time adjustment, speed adjustable range is big, and maneuvering performance is good, and the torque of generation is big, good heat dissipation effect.
Particular embodiments described above has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that the above is only a specific embodiment of the present invention, and does not have to and limit protection of the invention
Range.It particularly points out, to those skilled in the art, all within the spirits and principles of the present invention, that is done any repairs
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of Shaftless propeller, which is characterized in that including motor, rotation oil distributing valve and rotary propelling device；The rotation pushes away
It include wheel hub, shell, holddown spring, end cap, first bearing, second bearing, retaining ring, thrust unit, sealing ring and axis into device
To oil sealing；The wheel hub includes off-centre operation section and concentric circles section, and the first bearing is mounted on the concentric circles section of the wheel hub；Institute
It is close to always with the outer ring of the second bearing by the holddown spring end for stating thrust unit；The shell and described the
One bearing concentric；The propeller is fixed in the hollow shaft of the wheel hub；The end cap is fixed by screws in the shell
On body；The axial seal is arranged in the wheel hub two sides；The retaining ring compresses the inner ring of the second bearing.
2. Shaftless propeller according to claim 1, which is characterized in that the wheel hub is hollow shaft, in hollow shaft outer diameter
Portion is off-centre operation section, and two sides are concentric circles section, and concentric circles section and the shell are concentric, off-centre operation section and the second bearing inner ring
Fastening.
3. Shaftless propeller according to claim 1, which is characterized in that the motor is connect with the rotation oil distributing valve,
By thrust unit described in high pressure oil supply, the output revolving speed that the Shaftless propeller is adjusted in the motor speed is adjusted.
4. Shaftless propeller according to claim 1, which is characterized in that the thrust unit quantity has multiple, is evenly arranged on
On the excircle of the shell.
5. Shaftless propeller according to claim 1, which is characterized in that the thrust unit is plunger case or is band bullet
The oil-filled leather bag of property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932163.6A CN110525622A (en) | 2019-09-29 | 2019-09-29 | A kind of Shaftless propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932163.6A CN110525622A (en) | 2019-09-29 | 2019-09-29 | A kind of Shaftless propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110525622A true CN110525622A (en) | 2019-12-03 |
Family
ID=68670989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910932163.6A Pending CN110525622A (en) | 2019-09-29 | 2019-09-29 | A kind of Shaftless propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110525622A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013205A (en) * | 2020-09-10 | 2020-12-01 | 深圳市博铭维智能科技有限公司 | Flow multiplication propulsion pipeline detection robot |
| CN114735176A (en) * | 2022-04-15 | 2022-07-12 | 武汉理工大学 | Shaftless propeller and control method thereof |
| CN114987725A (en) * | 2022-07-22 | 2022-09-02 | 广东华中科技大学工业技术研究院 | High-efficiency shaftless rim propeller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306183A (en) * | 1993-02-25 | 1994-04-26 | Harbor Branch Oceanographic Institute Inc. | Propulsion systems for submarine vessels |
| KR20040086221A (en) * | 2004-04-06 | 2004-10-08 | 차운철 | Shaft-less Propeller Device |
| US20070126297A1 (en) * | 2005-06-30 | 2007-06-07 | Marifin Beheer B V | Shaftless propeller |
| US7841290B1 (en) * | 2006-02-14 | 2010-11-30 | The United States Of America As Represented By The Secretary Of The Navy | Marine shaftless external propulsor |
| CN102336261A (en) * | 2011-09-07 | 2012-02-01 | 王仁夫 | Shaftless propeller |
| CN105715606A (en) * | 2016-04-06 | 2016-06-29 | 浙江大学 | Compound digital servo actuator |
| CN108891571A (en) * | 2018-07-26 | 2018-11-27 | 沈阳化工大学 | A kind of shaftless electromagnetic propeller of magnetic suspension |
| CN109178268A (en) * | 2018-09-13 | 2019-01-11 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | A kind of external driving marine propulsion system |
| CN109281883A (en) * | 2018-11-08 | 2019-01-29 | 浙江大学 | A kind of electro-hydraulic executive device of harmonic wave step-by-step movement using rotation oil distributing valve |
| CN109383727A (en) * | 2017-08-11 | 2019-02-26 | 中国科学院沈阳自动化研究所 | A kind of nearly vector expression underwater robot propeller |
| CN208882094U (en) * | 2018-09-26 | 2019-05-21 | 威海人合机电股份有限公司 | Shaftless hydraulic-driven propeller |
| CN210942208U (en) * | 2019-09-29 | 2020-07-07 | 杭州诺祥科技有限公司 | Shaftless propeller |
-
2019
- 2019-09-29 CN CN201910932163.6A patent/CN110525622A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5306183A (en) * | 1993-02-25 | 1994-04-26 | Harbor Branch Oceanographic Institute Inc. | Propulsion systems for submarine vessels |
| KR20040086221A (en) * | 2004-04-06 | 2004-10-08 | 차운철 | Shaft-less Propeller Device |
| US20070126297A1 (en) * | 2005-06-30 | 2007-06-07 | Marifin Beheer B V | Shaftless propeller |
| US7841290B1 (en) * | 2006-02-14 | 2010-11-30 | The United States Of America As Represented By The Secretary Of The Navy | Marine shaftless external propulsor |
| CN102336261A (en) * | 2011-09-07 | 2012-02-01 | 王仁夫 | Shaftless propeller |
| CN105715606A (en) * | 2016-04-06 | 2016-06-29 | 浙江大学 | Compound digital servo actuator |
| CN109383727A (en) * | 2017-08-11 | 2019-02-26 | 中国科学院沈阳自动化研究所 | A kind of nearly vector expression underwater robot propeller |
| CN108891571A (en) * | 2018-07-26 | 2018-11-27 | 沈阳化工大学 | A kind of shaftless electromagnetic propeller of magnetic suspension |
| CN109178268A (en) * | 2018-09-13 | 2019-01-11 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | A kind of external driving marine propulsion system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112013205A (en) * | 2020-09-10 | 2020-12-01 | 深圳市博铭维智能科技有限公司 | Flow multiplication propulsion pipeline detection robot |
| CN114735176A (en) * | 2022-04-15 | 2022-07-12 | 武汉理工大学 | Shaftless propeller and control method thereof |
| CN114987725A (en) * | 2022-07-22 | 2022-09-02 | 广东华中科技大学工业技术研究院 | High-efficiency shaftless rim propeller |
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