CN114701631A - Guide plate type vector control mechanism for pump jet propeller - Google Patents
Guide plate type vector control mechanism for pump jet propeller Download PDFInfo
- Publication number
- CN114701631A CN114701631A CN202210270960.4A CN202210270960A CN114701631A CN 114701631 A CN114701631 A CN 114701631A CN 202210270960 A CN202210270960 A CN 202210270960A CN 114701631 A CN114701631 A CN 114701631A
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- Prior art keywords
- deflector
- control mechanism
- guide plate
- pump jet
- vector control
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- 230000007246 mechanism Effects 0.000 title claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
- B63H11/103—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof having means to increase efficiency of propulsive fluid, e.g. discharge pipe provided with means to improve the fluid flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/10—Marine propulsion by water jets the propulsive medium being ambient water having means for deflecting jet or influencing cross-section thereof
- B63H11/107—Direction control of propulsive fluid
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the field of control of underwater vehicles, and particularly discloses a guide plate type vector control mechanism for a pump jet propeller, which comprises a guide plate assembly and a driving assembly, wherein: the guide plate assembly comprises a plurality of guide plates, each guide plate is of a curved surface structure, and the plurality of guide plates are arranged along the circumferential direction of the outer wall of the nozzle of the pump jet propeller; the driving assembly comprises a plurality of driving structures, the driving structures correspond to the guide plates one to one, and the driving structures are used for respectively adjusting the rotating angle of each guide plate relative to the water outlet plane of the nozzle, so that steering force with all directions and adjustable size is generated. The invention combines the pump jet propulsion technology and the vector propulsion technology, so that the steering control mechanism of the underwater vehicle has the high-speed low-noise characteristic of the pump jet propeller and the high-efficiency control characteristic of the vector propeller at the same time.
Description
Technical Field
The invention belongs to the field of underwater vehicle control, and particularly relates to a guide plate type vector control mechanism for a pump jet propeller.
Background
Research into underwater vehicles is drawing more and more attention today where the ocean industry is increasingly important. Underwater vehicles are mainly used in the fields of environmental research, military exploration and the like. A pump jet is a propeller powered by the drive shaft of an underwater vehicle, which has lower noise and higher low noise speed than a typical propeller. The research on the pump jet propulsion device is an important research direction in the field of ships, but the current pump jet propulsion device has poor operation performance and control efficiency.
The vector propulsion technology is the top technology applied to the top fighter in the world nowadays, and an engine nozzle of the fighter adopting the vector propulsion device can generate high-speed airflow and can deflect the airflow by 360 degrees. The vector control mechanism can change a part of the thrust of the nozzle fluid into the force for steering, so that the steering capacity of the fighter can be improved. Therefore, an underwater vehicle control mechanism combined with a vector propulsion technology can be designed, and the control mechanism adopts a brand-new steering control mode, so that the vehicle has better steering performance.
Disclosure of Invention
In view of the above defects or improvement requirements of the prior art, the invention provides a deflector-type vector control mechanism for a pump jet propeller, which aims to combine a pump jet propulsion technology with a vector propulsion technology, so that an underwater vehicle steering control mechanism has the high-speed low-noise characteristic of the pump jet propeller and the high-efficiency control characteristic of the vector propeller at the same time.
In order to achieve the above object, the present invention provides a deflector-type vector control mechanism for a pump jet propeller, comprising a deflector assembly and a driving assembly, wherein:
the guide plate assembly comprises a plurality of guide plates, each guide plate is of a curved surface structure, and the plurality of guide plates are arranged along the circumferential direction of the outer wall of the nozzle of the pump jet propeller; the driving assembly comprises a plurality of driving structures, the driving structures correspond to the guide plates one to one, and the driving structures are used for respectively adjusting the rotating angle of each guide plate, so that the steering force with all directions and adjustable size is generated.
Preferably, the driving structure comprises a hydraulic cylinder barrel, a hydraulic cylinder piston rod and a transmission connecting rod which are connected in sequence, wherein the hydraulic cylinder barrel is fixed on the outer wall of the nozzle, and the transmission connecting rod is connected with the guide plate through a hinge mounting plate.
Preferably, the transmission connecting rod is arranged in the middle of the bottom end of the guide plate through a hinge mounting plate; hinge mounting plates are also fixed on two sides of the bottom of the guide plate, and the hinge mounting plates on the two sides are hinged with the corresponding bulges on the outer wall of the nozzle.
Preferably, the degree of freedom of the structure formed by the hydraulic cylinder piston rod, the transmission connecting rod and the guide plate 1 is 1.
Preferably, a steel oil pipe is adopted in the hydraulic control circuit of the hydraulic cylinder barrel.
More preferably, the thickness of the baffle is gradually reduced from the bottom to the top.
As a further preferred, the number of the guide plates is four, and the guide plates are symmetrically arranged on the outer wall of the nozzle in pairs.
Preferably, the guide plates do not interfere with each other during rotation, and when the four guide plates rotate towards the inner part of the nozzle to the limit position, the four guide plates form a partially closed conical surface together.
It is further preferred that the deflector is rotated to an extreme position by an angle of ± 30 ° relative to the outlet level of the spout.
Preferably, the turning angle of the deflector is controlled by a vector input means, and the magnitude and direction of the steering force are controlled.
Generally, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:
1. according to the invention, a pump jet propulsion technology and a vector propulsion technology are combined, so that the steering control mechanism of the underwater vehicle has the high-speed low-noise characteristic of a pump jet propeller and the high-efficiency control characteristic of a vector propeller at the same time; according to the invention, the plurality of driving structures correspond to the guide plates one by one, so that the vector control mechanism can provide all-directional and adjustable steering force for the pump-jet type underwater vehicle, and the vector control of the underwater vehicle is realized.
2. The driving structure is driven by hydraulic pressure and is hinged to the middle of the bottom end of the guide plate, so that accurate power can be quickly and effectively provided for the rotation of the guide plate; and meanwhile, the two sides of the bottom of the guide plate are hinged on the outer wall of the nozzle, so that the stability and the accuracy of rotation are improved.
3. The invention designs the thickness of the guide plate to be gradually thinner from the bottom to the top, thereby saving the material consumption, reducing the weight of the whole mechanism and achieving the preset mechanical property and direction control effect of the guide plate.
4. The invention comprehensively considers the cost and the steering control effect, preferably adopts four guide plates which can rotate to realize the combination of any angle, provides the steering force of any direction for the underwater vehicle and has controllable steering force; meanwhile, the guide plate can be directly controlled by an operator.
Drawings
FIG. 1 is a schematic structural diagram of a deflector-type vector control mechanism for a pump jet propeller according to an embodiment of the present invention;
FIG. 2 is a schematic view of a single baffle structure according to an embodiment of the present invention;
fig. 3 is a schematic view of the operation strategy of the deflector-type vector control mechanism according to the embodiment of the present invention.
The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein: the device comprises a guide plate 1, a nozzle 2, a nozzle outer wall, a hydraulic cylinder mounting seat 3, a hydraulic cylinder barrel 4, a hydraulic cylinder piston rod 5, a transmission connecting rod 6, a movable hinge point 7 and a fixed hinge point 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the invention provides a deflector-type vector control mechanism for a pump jet propeller, which comprises a deflector assembly and a driving assembly, as shown in fig. 1, wherein:
the guide plate subassembly includes a plurality of guide plates 1, and this guide plate 1 is the curved surface structure, and a plurality of guide plates 1 just spout 2 circumference settings of spout outer wall along the pump jet propeller. The driving assembly comprises a plurality of driving structures, the driving structures correspond to the guide plates 1 one by one, and the plurality of driving structures are used for respectively adjusting the rotating angle of each guide plate 1 relative to the outlet horizontal plane of the nozzle of the pump jet propeller; therefore, the pump jet propeller is combined with the vector control mechanism, and the omnibearing and adjustable steering force is provided for the pump jet type underwater vehicle.
Further, as shown in fig. 2, the thickness of the baffle 1 gradually becomes thinner from the bottom to the top; the both ends and the middle part in every guide plate bottom outside all are equipped with hinge mount board, and wherein, the hinge mount board at middle part is used for connecting drive assembly, and the hinge mount board at both ends then is connected with the arch that corresponds the position on spout outer wall 2, forms articulated fixed hinge point 8.
Furthermore, the number of the guide plates 1 is four, and the guide plates are symmetrically arranged on the outer wall 2 of the nozzle in pairs.
Furthermore, interference collision does not occur among the guide plates 1 in the rotating process, and when the four guide plates 1 rotate to the limit position towards the inside of the nozzle, partially closed conical surfaces are formed together; when the guide plate 1 rotates to the limit position, the rotation angle of the guide plate relative to the outlet horizontal plane of the nozzle is +/-30 degrees.
Further, the driving structure comprises a hydraulic cylinder barrel 4, a hydraulic cylinder piston rod 5 and a transmission connecting rod 6 which are connected in sequence, wherein the hydraulic cylinder barrel 4 is fixedly connected to the hydraulic cylinder mounting seat 3 through a bolt, and the hydraulic cylinder mounting seat 3 is mounted on the nozzle outer wall 2 through a bolt; the bottom end of the transmission connecting rod 6 is connected with a hydraulic cylinder piston rod 5, and the top end of the transmission connecting rod 6 is connected with a hinge mounting plate in the middle of the bottom end of the guide plate 1 to form a hinged movable hinge point 7. Specifically, the installation position of the hydraulic cylinder needs to be matched with the corresponding guide plate, and the center line of the cylinder barrel of the hydraulic cylinder and the piston rod of the hydraulic cylinder needs to be parallel to the central symmetry line of the guide plate.
Furthermore, the cylinder barrel 4 of the hydraulic cylinder is fixed in the working process, so that a steel oil pipe can be used in a control loop of the hydraulic system, and the safety and the reliability of the system are improved.
Furthermore, the degree of freedom of a mechanism formed by the hydraulic cylinder piston rod 5, the transmission connecting rod 6 and the guide plate 1 is 1, so that the guide plate can be controlled to rotate only by controlling the extension and retraction of the hydraulic cylinder piston rod, the extension and retraction amount of the piston rod corresponds to the rotation angle of the guide plate one by one, namely, the movement stroke of the hydraulic cylinder piston rod 5 corresponds to the fixed rotation angle of the guide plate.
Through the design, each guide plate in the vector control mechanism can rotate to realize the combination of any angle, so that the steering force in any direction is provided for the underwater vehicle, and the steering force is controllable. The rotation angle of the guide plate influences the force generated in the direction, and the ratio of the rotation angles of the four guide plates determines the direction of the steering force generated by the vector control mechanism.
The above-described steering strategy of the vector control mechanism is shown in fig. 3, where the direction of the vector input signal vector represents the direction of the steering force generated by the vector control mechanism; the magnitude of the vector input signal vector represents the magnitude of the steering force generated by the vector control mechanism.
Further, since the vector value range of the steering force is expressed as a circle in space and the output vector value of the vector input signal is a square, a part of the dead zone, i.e., dead zone, exists in the manipulation region. When the vector input signal value is in the invalid region, the vector force generated by the vector control mechanism is always the maximum value which can be generated in the direction.
When an operator uses the deflector-type underwater vehicle vector control mechanism, the operator refers to a control strategy of the vector control mechanism to operate, and the method specifically comprises the following steps:
(1) the operator checks whether the guide plate and the driving mechanism are intact or not, and whether the connecting piece is loosened or not.
(2) The operator starts the hydraulic device and the control system and checks whether the control signal and the feedback signal are normal.
(3) The vector control mechanism is in trial operation, and an operator controls the guide plate to slowly rotate through the vector signal input tool to detect the performance of the guide plate.
(4) After readiness, manipulation of the vector control mechanism can begin.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a guide plate formula vector control mechanism for pump spray propeller which characterized in that, includes guide plate subassembly and drive assembly, wherein:
the guide plate assembly comprises a plurality of guide plates (1), the guide plates (1) are of curved surface structures, and the guide plates (1) are arranged along the circumferential direction of the outer wall (2) of the nozzle of the pump jet propeller; the driving assembly comprises a plurality of driving structures, the driving structures correspond to the guide plates (1) one by one, and the driving structures are used for respectively adjusting the rotating angle of each guide plate (1), so that steering force with all directions and adjustable size is generated.
2. The deflector-type vector control mechanism for the pump jet propeller as recited in claim 1, wherein the driving structure comprises a hydraulic cylinder (4), a hydraulic cylinder piston rod (5) and a transmission connecting rod (6) which are connected in sequence, wherein the hydraulic cylinder (4) is fixed on the outer wall (2) of the spout, and the transmission connecting rod (6) is connected with the deflector (1) through a hinge mounting plate.
3. The deflector-type vector control mechanism for a pump jet propeller as claimed in claim 2, wherein the transmission link (6) is installed at the middle of the bottom end of the deflector (1) through a hinge mounting plate; hinge mounting plates are also fixed on two sides of the bottom of the guide plate (1), and the hinge mounting plates on the two sides are hinged with the corresponding bulges on the outer wall (2) of the nozzle.
4. The deflector-type vector control mechanism for a pump jet propeller as recited in claim 2, wherein the degree of freedom of the structure composed of the hydraulic cylinder piston rod (5), the transmission connecting rod (6) and the deflector 1 is 1.
5. The deflector-type vector control mechanism for a pump jet propeller as recited in claim 2, wherein a steel oil pipe is adopted in the hydraulic control circuit of the hydraulic cylinder barrel (4).
6. The deflector-type vector control mechanism for a pump jet propeller as claimed in claim 1, wherein the thickness of the deflector (1) is gradually thinner from the bottom to the top.
7. The deflector-type vector control mechanism for a pump jet propeller as claimed in claim 1, wherein the number of the deflectors (1) is four, and the deflectors are symmetrically arranged on the outer wall (2) of the jet nozzle in pairs.
8. The deflector-type vector control mechanism for a pump jet propeller according to claim 7, wherein the deflectors (1) do not interfere with each other during rotation and form a partially closed conical surface when the four deflectors (1) rotate to the extreme position toward the inside of the nozzle.
9. The deflector-type vector control mechanism for a pump jet propeller as claimed in claim 8, wherein the deflector (1) is rotated to an extreme position by an angle of ± 30 ° with respect to the outlet plane of the jet.
10. The deflector-type vector control mechanism for a pump jet propeller of any one of claims 1-9, wherein the rotation angle of the deflector (1) is controlled by a vector input means, and thus the magnitude and direction of the steering force are controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210270960.4A CN114701631A (en) | 2022-03-18 | 2022-03-18 | Guide plate type vector control mechanism for pump jet propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210270960.4A CN114701631A (en) | 2022-03-18 | 2022-03-18 | Guide plate type vector control mechanism for pump jet propeller |
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| Publication Number | Publication Date |
|---|---|
| CN114701631A true CN114701631A (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210270960.4A Pending CN114701631A (en) | 2022-03-18 | 2022-03-18 | Guide plate type vector control mechanism for pump jet propeller |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328096A (en) * | 1996-06-11 | 1997-12-22 | Kawasaki Heavy Ind Ltd | Method and device for steering ship water jet propulsion machinery |
| CN103303451A (en) * | 2013-06-17 | 2013-09-18 | 北京理工大学 | Hydraulically-driven full-vector water-jet propulsor spout |
| CN205064120U (en) * | 2015-10-11 | 2016-03-02 | 兰州交通大学 | Every single move gauche form thrust vector spray tube |
| CN105398558A (en) * | 2015-11-06 | 2016-03-16 | 中国船舶重工集团公司第七○二研究所 | Variable ducted propeller |
| CN108757215A (en) * | 2018-08-21 | 2018-11-06 | 西北工业大学 | The adjustable convergence diffusivity jet pipe of one kind |
| CN111959734A (en) * | 2020-08-19 | 2020-11-20 | 北京理工大学 | Vector control device based on water jet propeller |
| CN113562149A (en) * | 2021-07-31 | 2021-10-29 | 西北工业大学 | Underwater three-dimensional deflectable nozzle vector propeller |
-
2022
- 2022-03-18 CN CN202210270960.4A patent/CN114701631A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09328096A (en) * | 1996-06-11 | 1997-12-22 | Kawasaki Heavy Ind Ltd | Method and device for steering ship water jet propulsion machinery |
| CN103303451A (en) * | 2013-06-17 | 2013-09-18 | 北京理工大学 | Hydraulically-driven full-vector water-jet propulsor spout |
| CN205064120U (en) * | 2015-10-11 | 2016-03-02 | 兰州交通大学 | Every single move gauche form thrust vector spray tube |
| CN105398558A (en) * | 2015-11-06 | 2016-03-16 | 中国船舶重工集团公司第七○二研究所 | Variable ducted propeller |
| CN108757215A (en) * | 2018-08-21 | 2018-11-06 | 西北工业大学 | The adjustable convergence diffusivity jet pipe of one kind |
| CN111959734A (en) * | 2020-08-19 | 2020-11-20 | 北京理工大学 | Vector control device based on water jet propeller |
| CN113562149A (en) * | 2021-07-31 | 2021-10-29 | 西北工业大学 | Underwater three-dimensional deflectable nozzle vector propeller |
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Application publication date: 20220705 |