CN220551324U - Non-retractable fin stabilizer hydraulic system with zero resetting function - Google Patents
Non-retractable fin stabilizer hydraulic system with zero resetting function Download PDFInfo
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- CN220551324U CN220551324U CN202322273984.8U CN202322273984U CN220551324U CN 220551324 U CN220551324 U CN 220551324U CN 202322273984 U CN202322273984 U CN 202322273984U CN 220551324 U CN220551324 U CN 220551324U
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 23
- 239000003921 oil Substances 0.000 claims description 321
- 239000010720 hydraulic oil Substances 0.000 claims description 34
- 238000007599 discharging Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The application belongs to the technical field of ship hydraulic systems, and particularly relates to a non-retractable fin stabilizer hydraulic system with a zeroing function, which comprises a locking mechanism, a fin handle, a fin rotating oil cylinder group and a control valve group, wherein the two fin rotating oil cylinders and the fin handle form a lever structure, the fin handle is a lever of the lever structure, a central hole of the fin handle is a fulcrum of the lever structure, and the length from installation points of the two fin rotating oil cylinders and the fin handle to the center of the center hole of the fin handle is a force arm of the lever structure; the control valve group controls the two fin rotating cylinders to apply forces with the same direction to the two ends of the fin handle, so that the fin handle is reset to zero. The torque at the two ends of the fin handle can be accurately controlled to achieve balance by utilizing the lever principle, the fin handle after zeroing can be locked in place or unlocked by the telescopic pin of the locking mechanism, and the fact that the fin handle cannot be locked or unlocked due to zeroing deviation is avoided.
Description
Technical Field
The utility model belongs to the technical field of ship hydraulic systems, and particularly relates to a non-retractable fin stabilizer hydraulic system with a zeroing function.
Background
When the non-retractable stabilizer device is not used, the locking oil cylinder drives the telescopic pin to insert the telescopic pin into the pin hole of the fin handle, so that the device is locked, and the fins outside the ship body cannot swing out of order due to water flow. And whether the telescopic pin arranged on the locking oil cylinder can be smoothly inserted into the pin hole of the fin handle or not has a great relationship with the precision of the pin control zero resetting of the fin handle. The non-retractable stabilizer is subjected to electrohydraulic zeroing through the closed-loop control of the servo valve and the angle sensor, so that the precision requirements on the servo valve, the angle sensor and the zeroing control are high, and the phenomenon that a normal telescopic pin cannot be completed sometimes due to the zeroing precision problem is caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a non-retractable fin stabilizer hydraulic system with a zeroing function, which can accurately control the torque used at the two ends of a fin handle to reach balance by utilizing the lever principle, so that the fin is accurately zeroed, the fin handle after zeroing can be locked in place or unlocked in place through a telescopic pin of a locking mechanism, and the problem that the fin handle cannot be locked or unlocked due to zeroing deviation is avoided.
In order to achieve the technical purpose of the utility model, the utility model adopts the following technical scheme:
a non-retractable fin stabilizer hydraulic system with a zeroing function comprises a locking mechanism, a fin handle, a fin rotating cylinder group and a control valve group; the fin rotating oil cylinder group is provided with two fin rotating oil cylinders which are symmetrically arranged, one end of each fin rotating oil cylinder is provided with a push rod, and two ends of each fin handle are respectively connected with the push rods of the two fin rotating oil cylinders; the fin handle is provided with a central hole for fixing the fin shaft, the outer edge of the fin handle is provided with a pin hole, the locking mechanism is arranged on the outer side of the fin handle and comprises a telescopic pin, and the telescopic pin is matched with the pin hole of the fin handle; the control valve group is respectively communicated with the locking mechanism and oil cavities of the two fin rotating oil cylinders;
the two fin rotating cylinders and the fin handle form a lever structure, the fin handle is a lever of the lever structure, a central hole of the fin handle is a fulcrum of the lever structure, and the length from the mounting points of the two fin rotating cylinders and the fin handle to the center of the central hole of the fin handle is a force arm of the lever structure;
the control valve group controls the two fin rotating cylinders to apply forces with the same direction to the two ends of the fin handle, so that the fin handle is reset to zero.
Further, the two fin rotating cylinders apply torque M to the fin handle w Determined by the following formula:
wherein:
M w torque applied to the fin lever by the flipper cylinder, nm;
F Lx -force of the flipper cylinder on the flipper handle, N;
L x the arm of force, m, of the fin turning cylinder acting on the fin handle.
Further, when the fin handle is reset, the acting force F applied by the two fin rotating cylinders to the two ends of the fin handle Lx The direction of the magnitude of (d) and the moment arm L x The torque M applied to the left side and the right side of the fin handle by the two fin rotating cylinders is equal w The sum is 0.
Further, the control valve group controls the two fin rotating cylinders to alternately apply forces with opposite directions to the two ends of the fin handle, so that the fin handle rotates in a reciprocating manner; when the fin handle rotates, the acting force F applied by the two fin rotating cylinders to the two ends of the fin handle Lx Is opposite to the direction of the torque M applied to the fin handle by the two fin rotating cylinders w Is the sum of the torques on the left and right sides of the fin handle.
Further, two fin rotating cylinders act on the force arms L at the two ends of the fin handle x The same applies.
Further, the fin rotating oil cylinder is sequentially provided with a first oil cavity, a second oil cavity and a third oil cavity from the end of the push rod to the end opposite to the push rod;
when the fin handle is reset, the first oil cavity and the second oil cavity of the two fin rotating oil cylinders drain oil synchronously, and the effective acting areas of pistons of the three oil cavities are the same;
when the fin handle rotates in a reciprocating mode, the two fin rotating oil cylinders are provided with two working modes, wherein one fin rotating oil cylinder is based on the working modes of oil inlet of the first oil cavity, oil outlet of the second oil cavity and oil outlet of the third oil cavity, so that one end of the fin rotating handle is pulled to move into the oil cavity by a push rod of the fin rotating oil cylinder; the other fin rotating oil cylinder is based on the working modes of oil feeding of the second oil cavity, oil discharging of the first oil cavity and oil discharging of the third oil cavity, so that the push rod of the fin rotating oil cylinder pushes the other end of the fin handle to move away from the oil cavity, and reciprocating rotation of the fin handle is achieved through alternately controlling the two working modes of the two fin rotating oil cylinders.
Further, the control valve block includes an accumulator; the energy accumulator is arranged on a pipeline of the control valve group and is used for charging hydraulic oil with preset pressure when the non-retractable fin stabilizer hydraulic system with the zeroing function builds pressure.
Further, the device also comprises an oil tank and a cooler assembly; the oil tank and cooler assembly is connected with the control valve group and used for conveying hydraulic oil to the control valve group and collecting the hydraulic oil in the fin rotating oil cylinder group which is controlled to flow back by the control valve group.
Further, the oil tank and cooler assembly comprises a motor, a plunger pump, a cooler, an oil return filter and an oil tank;
the oil tank comprises an oil outlet and an oil return port, the oil outlet of the oil tank is connected with the plunger pump through a pipeline, the plunger pump is in driving connection through a motor, and the plunger pump is simultaneously connected with the oil inlet pipeline of the control valve group; the oil return port of the oil tank is connected with an oil return filter, the oil return filter is connected with a cooler, and the cooler is connected with an oil return pipeline of the control valve group.
According to the technical scheme, compared with the prior art, the utility model has the following advantages:
according to the utility model, when the fin returns to zero, the control valve group simultaneously applies hydraulic oil with the same pressure to the bottoms of the two fin rotating cylinders, and the hydraulic oil enters the fin rotating cylinders to push the pistons in the fin rotating cylinders, so that the effective acting areas of the pistons of the two fin rotating cylinders are the same, and the pistons of the fin rotating cylinders drive the push rods of the fin rotating cylinders to apply the same thrust to the two ends of the fin handle, so that the fin handle is in a return-to-zero state; when the fin works, the control valve group controls the fin rotating oil cylinder on one side to apply thrust to the fin handle, the control valve group controls the fin rotating oil cylinder on the other side to apply tension to the fin handle, and the control valve group controls the two fin rotating oil cylinders alternately to realize the gyration motion of the fin handle; the torque used at the two ends of the fin handle can be accurately controlled to achieve balance, so that the fin is accurately reset, the fin handle after the reset can be locked in place or unlocked in place through the telescopic pin of the locking mechanism, and the situation that the fin handle cannot be locked or unlocked due to reset deviation is avoided;
the fin rotating oil cylinder is provided with three oil cavities and a plurality of working modes, wherein the three oil cavities are a first oil cavity, a second oil cavity and a third oil cavity respectively; when the fin is reset, the first oil cavity and the second oil cavity of the two fin rotating oil cylinders drain oil synchronously, and the effective areas of pistons of the three oil cavities are the same; when the fin rotates reciprocally, the fin rotating oil cylinder at one side of the fin handle works based on the modes of oil inlet of the first oil cavity, oil outlet of the second oil cavity and oil outlet of the third oil cavity, the fin rotating oil cylinder at the other side of the fin handle works based on the modes of oil inlet of the second oil cavity, oil outlet of the first oil cavity and oil outlet of the third oil cavity, and the two working modes of the two fin rotating oil cylinders are alternated mutually so as to accurately realize the reciprocating rotation of the fin;
the third, the control valve bank of the utility model has an energy accumulator, the energy accumulator can charge hydraulic oil with preset pressure when the hydraulic system of the non-retractable stabilizer with the zeroing function builds up pressure;
fourth, the oil tank and cooler assembly of the utility model can be used for conveying hydraulic oil to the control valve bank and collecting hydraulic oil which flows back in the fin rotating oil cylinder group and is controlled by the control valve bank, the oil tank and cooler assembly comprises a cooler and an oil return filter, the cooler and the oil return filter are arranged on an oil return pipeline of the control valve bank, the cooling of the hydraulic oil after working can be realized through the cooler, the non-retractable fin stabilizing hydraulic system with the zeroing function is ensured to be at a proper working temperature, the pressure of the system is ensured, and worn impurities in the fin rotating oil cylinder, the control valve bank and a pipeline can be filtered through the oil return filter, so that the stable operation of the system is ensured.
Drawings
FIG. 1 is a schematic diagram of a non-retractable fin stabilizer hydraulic system with a zeroing function of embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of a non-retractable fin stabilizer hydraulic system with zeroing according to embodiment 1 of the present utility model;
FIG. 3 is a force diagram of a fin handle when the fin is reset;
FIG. 4 is a diagram illustrating the force applied to a fin handle during a fin revolution;
FIG. 5 is a second force diagram of a fin handle during fin revolution;
FIG. 6 is a schematic diagram of a non-retractable fin stabilizer hydraulic system with a zeroing function of example 2 of the present utility model;
fig. 7 is a schematic structural view of a first fin cylinder according to embodiment 2 of the present utility model;
fig. 8 is a schematic diagram of a control valve group of embodiment 2 of the present utility model.
Wherein, 1-locking mechanism; 2-fin handle; 3-fin rotating oil cylinder groups; 30-a first fin cylinder; 300-a first fin cylinder-oil cavity; 301-a first fin cylinder two oil cavities; 302-a first fin cylinder three oil chambers; 31-a second fin turning cylinder; 4-controlling a valve group; 40-a hydraulic control one-way valve group; 400-a first pilot operated check valve; 401-a second hydraulically controlled check valve; 402-a third pilot operated check valve; 403-fourth pilot operated check valve; 404-a fifth hydraulically controlled check valve; 41-electrohydraulic servo valve; 42-high pressure filter; a 43-accumulator; 44-electromagnetic reversing valve group; 440-a first electromagnetic directional valve; 441-a second electromagnetic directional valve; 45-electromagnetic spill valve; 5-an oil tank and a cooler assembly; 50-an electric motor; 51-plunger pump; 52-a cooler; 53-an oil return filter; 54-an oil tank; a-fin.
Detailed Description
In order to better understand the technical solutions of the present application, the present utility model will be further described in detail below with reference to the drawings and the embodiments.
The terms of upper, lower, left, right, front, rear, and the like in the present application are established based on the positional relationship shown in the drawings. The drawings are different, and the corresponding positional relationship may be changed, so that the scope of protection cannot be understood.
In the present application, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected or communicable with each other, directly connected, indirectly connected through an intermediate medium, communicated between two components, or an interaction relationship between two components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
Example 1:
referring to the accompanying drawings 1-2 of the specification, a non-retractable fin stabilizer hydraulic system with a zeroing function comprises a locking mechanism 1, a fin handle 2, a fin rotating cylinder group 3, a control valve group 4 and an oil tank and cooler assembly 5. The fin rotating oil cylinder group 3 comprises two fin rotating oil cylinders, the two fin rotating oil cylinders are symmetrically arranged, one end of each fin rotating oil cylinder is provided with a push rod, and the other end of each fin rotating oil cylinder is provided with a control valve group oil inlet. The fin handle 2 is provided with a center hole, the two ends of the center hole of the fin handle 2 are symmetrically provided with mounting holes, a fin shaft of the fin A penetrates into the center hole of the fin handle 2 to be fixed, the outer edge of the fin handle 2 is provided with a pin hole, and the center axis of the pin hole is perpendicular to the circle center connecting line of the mounting holes at the two ends of the fin handle 2 and is intersected with the axis of the fin shaft. The two fin rotating oil cylinders and the locking mechanism 1 are respectively positioned at two sides of the fin handle 2, and one ends of the two fin rotating oil cylinders with push rods are respectively connected with mounting holes at two ends of the fin handle 2; the two fin rotating cylinders are used for alternately pushing and pulling two ends of the fin handle 2, so that the fin handle 2 drives the fin shaft of the fin A to rotate along the axial direction; one end of each fin rotating oil cylinder, which is provided with a control valve group oil inlet, is respectively connected with a control valve group 4, and the control valve group 4 is used for inputting hydraulic oil to the two fin rotating oil cylinders. The locking mechanism 1 comprises a telescopic pin, the telescopic pin of the locking mechanism 1 is matched with the pin hole of the fin handle 2, and the telescopic pin of the locking mechanism 1 stretches into the pin hole of the fin handle 2 to fix the fin handle 2 when the fin A is reset. The locking mechanism 1 is also connected with the control valve group 4, and the expansion pin of the locking mechanism 1 is controlled to extend or retract through the control valve group 4, so that locking or unlocking of the fin A is realized. The oil tank and cooler assembly 5 is connected with the control valve group 4 and is used for conveying hydraulic oil to the control valve group 4 and collecting the hydraulic oil in the fin rotating oil cylinder group 3, which is controlled to flow back by the control valve group 4.
The two fin rotating cylinders and the fin handle 2 form a lever structure, the fin handle 2 is a lever of the lever structure, a central hole of the fin handle 2 is a fulcrum of the lever structure, mounting points of the two fin rotating cylinders and the fin handle 2 are resistance points of the lever structure and thrust points of the lever structure, and the lengths from the mounting points of the two fin rotating cylinders and the fin handle 2 to the center of the central hole of the fin handle 2 are force arms of the lever structure and the lengths of the two force arms of the lever structure are the same.
In the present embodiment, the torque M applied to the fin handle 2 by the two fin turning cylinders 3 w Determined by the following formula:
wherein:
M w torque applied to the fin lever by the flipper cylinder, nm;
F Lx -force of the flipper cylinder on the flipper handle, N;
L x the arm of force, m, of the fin turning cylinder acting on the fin handle.
Taking the example shown in fig. 3, the finA is zero again, the acting force F of the two fin rotating cylinders 3 on the fin handle 2 L3 And F L4 The force arms L3 and L4 are equal, the torques of the oil cylinder acting on the fin handle 2 are equal, and the comprehensive torque M is realized w The connecting line of the circle centers of the outer edge pin holes of the fin handle 2 is in a horizontal posture when the connecting line is zero, the telescopic pin of the locking mechanism 1 smoothly stretches into the pin holes of the fin handle 2, locking is achieved, and the torque M applied to the fin handle 2 by the two fin rotating cylinders is applied w Determined by the following formula:
taking fig. 4 as an example, when the fin a rotates clockwise along the axis, one fin turning cylinder 3 decompresses one end of the fin handle 2, and the other fin turning cylinder 3 presses the other end of the fin handle 2, so that the acting force F of the two fin turning cylinders 3 on the fin handle 2 L5 And F L6 Opposite direction, the two fin rotating cylinders apply torque M to the left side and the right side of the fin handle 2 w Determined by the following formula:
taking fig. 5 as an example, when the fin a rotates counterclockwise along the axis, the acting force of the two fin rotating cylinders 3 on the fin handle 2 is opposite to that of the fin a rotating clockwise along the axis, one fin rotating cylinder 3 is used for releasing pressure on one end of the fin handle 2, and the other fin rotating cylinder 3 is used for applying pressure on the other end of the fin handle 2, so that the acting force F of the two fin rotating cylinders 3 on the fin handle 2 L7 And F L8 Opposite direction, the two fin rotating cylinders apply torque M to the left side and the right side of the fin handle 2 w Determined by the following formula:
according to the embodiment, when the fin A is reset, hydraulic oil with the same pressure is applied to the bottoms of the two fin rotating cylinders through the control valve group 4, the hydraulic oil enters the fin rotating cylinders to push pistons in the fin rotating cylinders, so that the effective acting areas of the pistons of the two fin rotating cylinders are the same, and the pistons of the fin rotating cylinders drive push rods of the fin rotating cylinders to apply the same thrust to the two ends of the fin handle 2, so that the fin handle 2 is in a reset state; when the fin A works, the control valve group 4 controls the fin rotating oil cylinder on one side to apply thrust to the fin handle 2, the control valve group 4 controls the fin rotating oil cylinder on the other side to apply tension to the fin handle 2, and the two fin rotating oil cylinders are alternately controlled by the control valve group 4 to realize the gyration motion of the fin handle 2. By adopting the structural mode of the embodiment, the torque used at the two ends of the fin handle 2 can be accurately controlled to be balanced, so that the fin A is accurately reset, the fin handle 2 after the reset can be locked in place or unlocked by the telescopic pin of the locking mechanism 1, and the problem that the fin handle 2 cannot be locked or unlocked due to reset deviation is avoided.
Example 2:
referring to fig. 6 to 8 of the drawings, on the basis of embodiment 1, the fin turning cylinder group 3 of the present embodiment includes a first fin turning cylinder 30 and a second fin turning cylinder 31. The first and second flipper cylinders 30, 31 have the same structure. Taking the first fin cylinder 30 as an example, the first fin cylinder 30 has three oil chambers including a first fin cylinder first oil chamber 300, a first fin cylinder second oil chamber 301, and a first fin cylinder third oil chamber 302.
The first fin oil cylinder first oil cavity 300 is provided with a first piston and a first push rod, one end of the first push rod extending is fixed on the first piston, the other end of the first push rod extending out of the first fin oil cylinder first oil cavity 300 is connected with a mounting hole on one side of the fin handle 2, a second piston is arranged in the first fin oil cylinder third oil cavity 302, a second push rod is arranged in the first fin oil cylinder second oil cavity 301 and the first fin oil cylinder third oil cavity 302, the second push rod is located between the first piston and the second piston, and one end of the second push rod is connected with the second piston.
The second skeg cylinder 31 includes a first oil chamber, a second oil chamber, and a third oil chamber, and is identical to the first skeg cylinder first oil chamber 300, the first skeg cylinder second oil chamber 301, and the first skeg cylinder third oil chamber 302, respectively.
The control valve group 4 comprises a hydraulic control check valve group 40, an electrohydraulic servo valve 41, a high-pressure filter 42, an accumulator 43, an electromagnetic directional valve group 44 and an electromagnetic overflow valve 45.
The pilot-operated check valve set 40 of this embodiment includes a first pilot-operated check valve 400, a second pilot-operated check valve 401, a third pilot-operated check valve 402, a fourth pilot-operated check valve 403, and a fifth pilot-operated check valve 404. The electromagnetic directional valve group 44 includes a first electromagnetic directional valve 440 and a second electromagnetic directional valve 441.
The outlet end of the oil tank and cooler assembly 5 is communicated with the P port of the first electromagnetic directional valve 440 through a one-way valve and is used for conveying hydraulic oil to the control valve group 4; a pressure gauge, an energy accumulator 43, a second electromagnetic directional valve 441 and an electromagnetic overflow valve 45 are arranged on the pipeline of the P port of the one-way valve and the first electromagnetic directional valve 440 in parallel, and the energy accumulator 43 is used for charging hydraulic oil with preset pressure when the non-retractable fin-stabilizer hydraulic system with the zeroing function builds pressure; the port of the first electromagnetic directional valve 440 is communicated with the port A of the first hydraulic control one-way valve 400, the port B of the first electromagnetic directional valve 440 is communicated with the high-pressure filter 42, the port P of the first electromagnetic directional valve 440 is communicated with the port P of the second electromagnetic directional valve 441, the port T of the first electromagnetic directional valve 440 is communicated with the port T of the second electromagnetic directional valve 441 and then is connected with an oil tank and an oil return end of the cooler assembly 5 through a hydraulic pipe, and the port B of the second electromagnetic directional valve 441 is communicated with an oil cavity of the locking mechanism 1.
The high-pressure filter 42 is connected with the P port of the electrohydraulic servo valve 41 at the same time, the T port of the electrohydraulic servo valve 41 is connected with the oil tank and the oil return end of the cooler assembly 5, the A port of the electrohydraulic servo valve 41 is connected with the pressure gauge and the second hydraulic control one-way valve 401 in parallel, the B port of the electrohydraulic servo valve 41 is connected with the pressure gauge and the fifth hydraulic control one-way valve 404 in parallel, and the second hydraulic control one-way valve 401 and the fifth hydraulic control one-way valve 404 are communicated through a hydraulic pipe.
On the connection line from the high-pressure filter 42 to the electrohydraulic servo valve 41, the two parallel pipelines are respectively connected with the first hydraulic check valve 400 and the fifth hydraulic check valve 404, and the second hydraulic check valve 401 is simultaneously connected with the fifth hydraulic check valve 404, so that high-pressure oil can circulate among the first hydraulic check valve 400, the second hydraulic check valve 401 and the fifth hydraulic check valve 404 and open the first hydraulic check valve 400, the second hydraulic check valve 401 and the fifth hydraulic check valve 404.
The second hydraulic control check valve 401 is connected with the port B of the fifth hydraulic control check valve 404, the third hydraulic control check valve 402 and the fourth hydraulic control check valve 403 are installed on the connecting pipeline in series, the port B of the third hydraulic control check valve 402 and the port B of the fourth hydraulic control check valve 403 are respectively communicated with the port B of the second hydraulic control check valve 401 and the port B of the fifth hydraulic control check valve 404, the third hydraulic control check valve 402 and the fourth hydraulic control check valve 403 are connected through two parallel communication pipelines, one communication pipeline is communicated with the pipeline from the first electromagnetic reversing valve 440 to the first hydraulic control check valve 400, and the other communication pipeline is connected with the oil return end of the oil tank and the cooler assembly 5 through a hydraulic pipe.
The port B of the first hydraulic check valve 400 is divided into two branches by a hydraulic pipe, and the branches are respectively communicated with the three oil cavities of the first fin rotating oil cylinder 302 and the second fin rotating oil cylinder 31, so as to apply the same pressure to the three oil cavities of the first fin rotating oil cylinder 302 and the second fin rotating oil cylinder 31 at the same time.
The port B of the second hydraulic check valve 401 is divided into two branches by a hydraulic pipe and is respectively connected with the first oil cavity 300 of the first fin rotating cylinder and the second oil cavity of the second fin rotating cylinder 31, and is used for acting hydraulic oil on one end of the rod cavity of the first piston of the first fin rotating cylinder 30 and one end of the rodless cavity of the first piston of the second fin rotating cylinder 31, so that the hydraulic oil of the first fin rotating cylinder 30 pushes the first piston to move towards the direction of the third oil cavity 302 of the first fin rotating cylinder, and further drives the first push rod of the first fin rotating cylinder 30 to pull the fixed end of the fin handle 2, meanwhile, the hydraulic oil in the second fin rotating cylinder 31 fills the space between the first piston and the second piston of the second fin rotating cylinder 31 and pushes the first piston to move away from the second piston, and further drives the first push rod of the second fin rotating cylinder 31 to push the fixed end of the fin handle 2, and the fin handle 2 is driven to rotate anticlockwise along the central axis.
The port B of the fifth hydraulic check valve 404 is divided into two branches by a hydraulic pipe, and is connected to the two oil chambers 301 of the first fin rotating cylinder and one oil chamber of the second fin rotating cylinder 31 respectively, and is used for hydraulic oil to act on one end of the rodless chamber of the first piston of the first fin rotating cylinder 30 and one end of the rod chamber of the first piston of the second fin rotating cylinder 31, so that the hydraulic oil of the first fin rotating cylinder 30 fills the space between the first piston and the second piston and pushes the first piston to move in a direction away from the second piston, and further drives the first push rod to push the fixed end of the fin handle 2, and meanwhile, the hydraulic oil pushes the first piston of the second fin rotating cylinder 31 to move in a direction close to the second piston, and further drives the first push rod of the second fin rotating cylinder 31 to pull the fixed end of the fin handle 2, so that the fin handle 2 rotates clockwise along the central axis thereof.
It should be noted that, it should be understood by those skilled in the art that the structure of the fin turning cylinder group 3 and the pipeline arrangement frame of the control valve group 4 in this embodiment are only exemplary, and the structure of the fin turning cylinder group 3 and the pipeline arrangement frame of the control valve group 4 may be adjusted according to practical situations, and by adopting the lever principle of this embodiment, the zeroing accurate control of the fin turning cylinder group 3 and the control valve group 4 on the fin handle 2 can be achieved.
By adopting the structure of the embodiment, when the fin is reset, the effective acting areas of pistons in the three oil cavities of the first fin rotating oil cylinder and the third oil cavity of the second fin rotating oil cylinder 302 are the same, the fin handle 2 is in a horizontal posture, and the telescopic pin of the locking oil cylinder 1 is conveniently and smoothly inserted into the pin hole of the fin handle 2.
With this structure of the present embodiment, when the non-retractable fin stabilizer hydraulic system with the zeroing function discharges oil, the three oil chambers of the first fin cylinder first oil chamber 300 and the second fin cylinder 31 can be maintained at predetermined pressures by the first pilot operated check valve 400, so that the horizontal posture of the fin handle 2 is stabilized.
With this structure of the present embodiment, through the cooperation of the first pilot check valve 400, the third pilot check valve 401, and the fourth pilot check valve 403, when high-pressure oil passes through the first pilot check valve 400 to the first fin cylinder three oil chamber 302 and the second fin cylinder 31 three oil chamber, the third pilot check valve 401 and the fourth pilot check valve 403 are opened by the high-pressure oil path of the first pilot check valve 400, and the second piston of the first fin cylinder 31 and the second piston of the second fin cylinder 31 can smoothly push the first piston of the first fin cylinder 31 and the first piston of the second fin cylinder 31, so that the first fin cylinder first oil chamber 300, the first fin cylinder second oil chamber 301, the first oil chamber of the second fin cylinder 31, and the second oil chamber of the second fin cylinder 31 smoothly return oil.
With this structure of the present embodiment, when in operation, the hydraulic oil at the P port of the electrohydraulic servo valve 41 is communicated with the control oil path of the first pilot operated check valve 400, the control oil path of the second pilot operated check valve 401 and the control oil path of the fifth pilot operated check valve 404, so that the first pilot operated check valve 400, the second pilot operated check valve 401 and the fifth pilot operated check valve 404 are always in an open state, and the first oil cavity 300 of the first fin rotating cylinder and the third oil cavity of the second fin rotating cylinder 31 are kept to drain oil into the oil tank and the cooler assembly 5 through the first pilot operated check valve 400 and the first electromagnetic directional valve 440, thereby ensuring normal operation of the first fin rotating cylinder 31 and the second fin rotating cylinder 31.
Example 3:
referring to fig. 6 of the drawings, in the embodiment 2, the oil tank and cooler assembly 5 of the present embodiment includes a motor 50, a plunger pump 51, a cooler 52, an oil return filter 53, and an oil tank 54.
The tank 54 includes an oil outlet and an oil return. An oil outlet of the oil tank 54 is connected with a plunger pump 51 through a pipeline, the plunger pump 51 is driven by a motor 50, and the plunger pump 51 is simultaneously connected with a check valve of the control valve group 4. The oil return port of the oil tank 54 is connected with the oil return filter 53 through a pipeline, the oil return filter 53 is connected with the cooler 52 through a pipeline, and the cooler 52 is connected with the port T of the electromagnetic overflow valve 45, the port T of the electromagnetic reversing valve bank 44, the port T of the electro-hydraulic servo valve and the port A of the third hydraulic control check valve 402 and the port A of the fourth hydraulic control check valve 403 through pipelines.
In this embodiment, the hydraulic pipe that the a-port communication pipeline of the third hydraulic control check valve 402 and the fourth hydraulic control check valve 403 is connected with the cooler 52 is a main return pipeline, and the T-port of the electromagnetic overflow valve 45, the T-port of the electromagnetic directional valve bank 44 and the T-port of the electro-hydraulic servo valve are respectively connected with the main return pipeline through pipelines, so that the pipeline trend is straightened, and the pipeline architecture of the integral control valve bank 4 is neat.
The working method of the present utility model will be described with reference to the above embodiments, and the working method is as follows:
step 1: an unlocking action; when the fin handle 2 is not unlocked, the electromagnetic overflow valve 45, the first electromagnetic directional valve 440 and the second electromagnetic directional valve 441 are in a power-off state, the port B and the port T of the second electromagnetic directional valve 441 are communicated, hydraulic oil in the locking mechanism 1 flows back to the oil tank 54, the motor 50 is started to drive the plunger pump 51, the plunger pump 51 drives the hydraulic oil to charge the accumulator 43 and establish system pressure, after the system pressure is established, the system is reset, and the locking mechanism 1 is unlocked.
Step 1.1: the port P of the first electromagnetic directional valve 440 is communicated with the port a, high-pressure oil is divided into two branches after entering the port a of the first electromagnetic directional valve 440 by the plunger pump 51, one branch enters the passages a and B of the first hydraulic control check valve 400, enters the three oil cavities of the first fin rotating cylinder and the second fin rotating cylinder from the port B of the first hydraulic control check valve 400, and the other branch enters the connecting pipeline of the third hydraulic control check valve 402 and the fourth hydraulic control check valve 403, and opens the third hydraulic control check valve 402 and the fourth hydraulic control check valve 403.
Step 1.2: after the third hydraulic check valve 402 and the fourth hydraulic check valve 403 are opened by the high-pressure oil, hydraulic oil in the first oil chamber of the first fin rotating cylinder and the second oil chamber of the second fin rotating cylinder flows back to the oil tank 54 through the third hydraulic check valve 402, and hydraulic oil in the second oil chamber of the first fin rotating cylinder and the first oil chamber of the second fin rotating cylinder flows back to the oil tank 54 through the fourth hydraulic check valve 403.
Step 1.3: on the basis of the step 1.1 and the step 1.2, hydraulic oil is not arranged in the first oil cavity and the second oil cavity of the first fin rotating oil cylinder and the second fin rotating oil cylinder, hydraulic oil with the same pressure is arranged in the three oil cavities of the first fin rotating oil cylinder and the second fin rotating oil cylinder, the force directions of the first fin rotating oil cylinder and the second fin rotating oil cylinder acting on the fin handle 2 are the same, the fin handle 2 is in a horizontal state at the moment, and the telescopic pin of the locking mechanism 1 is positioned in the pin hole of the fin handle 2.
Step 1.4: because the second electromagnetic directional valve 441 is connected in parallel to the pipeline from the plunger pump 51 to the first electromagnetic directional valve 440, the second electromagnetic directional valve 441 is electrified, the P port and the B port of the second electromagnetic directional valve 441 are the same, high-pressure oil flows to the locking mechanism 1 after entering the B port from the P port of the second electromagnetic directional valve 441, and presses the spring in the locking mechanism 1 to pull the telescopic pin away from the pin hole of the fin handle 2, at this time, the locking mechanism 1 completes unlocking action, and after unlocking, the second electromagnetic directional valve 441 keeps the P port communicated with the B port.
Step 2: a fin turning action; after the locking mechanism 1 is unlocked, the first electromagnetic directional valve 440 is in an electrified state, the port P and the port B of the first electromagnetic directional valve 440 are communicated, the port A and the port T of the first electromagnetic directional valve 440 are communicated, as two pipelines are connected in parallel on the connecting pipeline from the high-pressure filter 42 to the electrohydraulic servo valve 41 and are respectively connected with the first hydraulically-controlled one-way valve 400 and the fifth hydraulically-controlled one-way valve 404, the second hydraulically-controlled one-way valve 401 is simultaneously connected with the fifth hydraulically-controlled one-way valve 404, high-pressure oil flows to the first hydraulically-controlled one-way valve 400 and the fifth hydraulically-controlled one-way valve 404 respectively through the port P and the port B of the first electromagnetic directional valve 440 and enters the electrohydraulic servo valve 41 through the high-pressure filter 42, and then flows to the second hydraulically-controlled one-way valve 401, the high-pressure oil flows back to the first hydraulically-controlled one-way valve 400, the second hydraulically-controlled one-way valve 401 and the fifth hydraulically-way valve 404 through the port B and the port A of the first hydraulically-controlled one-way valve 400 and the port B of the third electrohydraulic oil cavity of the first rotary oil cylinder and flows back to the first electromagnetic directional oil cylinder and the second rotary valve 440 through the port A and the port 54 of the first electromagnetic directional valve 440, and then alternately rotates clockwise through the control valve 2 and the rotary handle 2, and the rotary handle 2 is driven by the rotary handle of the rotary valve or the rotary handle 2.
Step 2.1: when the electrohydraulic servo valve 41 receives a clockwise fin rotating instruction of the electric control equipment, the port P and the port B of the electrohydraulic servo valve 41 are communicated, the port A and the port T are communicated, high-pressure oil passes through the port P and the port B of the electrohydraulic servo valve 41 and then enters the fifth hydraulically-controlled one-way valve 404, the fifth hydraulically-controlled one-way valve 404 enters the two oil cavities of the first fin rotating oil cylinder and the first oil cavity of the second fin rotating oil cylinder, hydraulic oil in the first oil cavity of the first fin rotating oil cylinder and the second oil cavity of the second fin rotating oil cylinder enters the port A and the port T of the electrohydraulic servo valve 41 through the second hydraulically-controlled one-way valve 401 and then flows back to the oil tank 54, at the moment, the high-pressure oil in the two oil cavities of the first fin rotating oil cylinder pushes the first piston and the first push rod, thrust is generated on one end of the fin handle 2, the high-pressure oil in the two oil cavities of the second fin rotating oil cylinder compresses the first piston and drives the first push rod to move inwards, and tension is generated on the other end of the fin handle 2.
Step 2.2: when the electrohydraulic servo valve 41 receives a counterclockwise fin rotating instruction of the electric control equipment, a port P and a port A of the electrohydraulic servo valve 41 are communicated, a port B and a port T are communicated, high-pressure oil passes through the port P and the port A of the electrohydraulic servo valve 41 and then enters the second hydraulically-controlled one-way valve 401, the high-pressure oil enters an oil cavity of the first fin rotating oil cylinder and a two oil cavities of the second fin rotating oil cylinder through the second hydraulically-controlled one-way valve 401, hydraulic oil in the two oil cavities of the first fin rotating oil cylinder and the two oil cavities of the second fin rotating oil cylinder enters the port B and the port T of the electrohydraulic servo valve 41 through the fifth hydraulically-controlled one-way valve 404 and then flows back to the oil tank 54, at the moment, the high-pressure oil in the one oil cavity of the first fin rotating oil cylinder compresses the first piston and drives the first push rod to move into the oil cavity, tension is generated on the other end of the fin handle 2, and the high-pressure oil in the two oil cavities of the second fin rotating oil cylinder pushes the first piston and the first push rod, and thrust force is generated on one end of the fin handle 2.
Step 3: locking; the locking action is carried out when the equipment is stopped, a system sends a stopping instruction, a fin rotating instruction of the electro-hydraulic servo valve 41 is released, the paths from the port B to the port A of the second hydraulic control one-way valve 401 and the fifth hydraulic control one-way valve 404 are closed, a hydraulic lock is formed, a first oil cavity and a second oil cavity of the first fin rotating oil cylinder and a first oil cavity and a second oil cavity of the second fin rotating oil cylinder 31 are closed, and swing of a fin handle 2 is reduced; the first electromagnetic directional valve 440 and the second electromagnetic directional valve 441 are powered off, the P port of the first electromagnetic directional valve 440 is communicated with the a port, high-pressure oil flows from the P port to the a port of the first electromagnetic directional valve 440, the high-pressure oil passes through the first electromagnetic directional valve 440 and enters three oil cavities of the first fin rotating cylinder and the second fin rotating cylinder, and meanwhile, the high-pressure oil is communicated with the third hydraulic control one-way valve 402 and the fourth hydraulic control one-way valve 403, the first oil cavity and the second oil cavity of the first fin rotating cylinder and the first oil cavity and the second oil cavity of the second fin rotating cylinder 31 are opened, the effective action areas of the three oil cavity pistons of the first fin rotating cylinder and the second fin rotating cylinder are the same, so that the fin handle 2 is in a horizontal state, and the pin hole of the fin handle 2 is aligned with the telescopic pin of the locking mechanism 1; the motor 50 stops rotating, the electromagnetic overflow valve 45 is powered on to unload the pressure of the system, the passage from the port B to the port A in the first hydraulic control one-way valve 400 is closed, the three oil cavities of the first fin rotating oil cylinder and the three oil cavities of the second fin rotating oil cylinder keep preset pressure, and the fin handle 2 keeps a horizontal state; the opening B of the second electromagnetic directional valve 441 is communicated with the opening T, oil in the locking mechanism 1 flows back to the oil tank 54 through the opening B and the opening T of the second electromagnetic directional valve 441, and the locking mechanism 1 inserts the telescopic pin into the pin hole of the fin handle 2 under the action of internal spring force to lock the fin handle 2.
The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. A non-retractable fin stabilizer hydraulic system with a zeroing function comprises a locking mechanism (1), a fin handle (2), a fin rotating cylinder group (3) and a control valve group (4); the fin rotating oil cylinder group (3) is provided with two fin rotating oil cylinders which are symmetrically arranged, one end of each fin rotating oil cylinder is provided with a push rod, and two ends of the fin handle (2) are respectively connected with the push rods of the two fin rotating oil cylinders; the fin handle (2) is provided with a central hole for fixing the fin shaft, the outer edge of the fin handle (2) is provided with a pin hole, the locking mechanism (1) is arranged on the outer side of the fin handle (2), the locking mechanism (1) comprises a telescopic pin, and the telescopic pin is matched with the pin hole of the fin handle (2); the control valve group (4) is respectively communicated with the locking mechanism (1) and oil cavities of the two fin rotating oil cylinders; it is characterized in that the method comprises the steps of,
the two fin rotating cylinders and the fin handle (2) form a lever structure, the fin handle (2) is a lever of the lever structure, a central hole of the fin handle (2) is a fulcrum of the lever structure, and the length from the mounting points of the two fin rotating cylinders and the fin handle (2) to the center of the central hole of the fin handle (2) is a force arm of the lever structure;
the control valve group (4) controls the two fin rotating cylinders to apply forces with the same direction to the two ends of the fin handle (2), so that the fin handle (2) is reset to zero.
2. According to claimThe non-retractable fin stabilizer hydraulic system with zero return function as set forth in claim 1, wherein the two fin rotating cylinders apply a torque M to the fin handle (2) w Determined by the following formula:
wherein:
M w torque applied to the fin lever by the flipper cylinder, nm;
F Lx -force of the flipper cylinder on the flipper handle, N;
L x the arm of force, m, of the fin turning cylinder acting on the fin handle.
3. The non-retractable fin stabilizer hydraulic system with the zeroing function according to claim 2, wherein when the fin handle (2) is zeroed, the two fin rotating cylinders apply a force F on both ends of the fin handle (2) Lx The direction of the magnitude of (d) and the moment arm L x Are equal, and the two fin rotating cylinders apply torque M to the left side and the right side of the fin handle (2) w The sum is 0.
4. The non-retractable fin stabilizer hydraulic system with the zeroing function according to claim 2, wherein the control valve group (4) controls the two fin rotating cylinders to alternately apply opposite forces to the two ends of the fin handle (2) so that the fin handle (2) rotates in a reciprocating manner; when the fin handle (2) rotates, the acting force F applied by the two fin rotating cylinders to the two ends of the fin handle (2) Lx Is opposite to the direction of the torque M applied by the two fin rotating cylinders to the fin handle (2) w Is the sum of the torques at the left side and the right side of the fin handle (2).
5. The hydraulic system of non-retractable stabilizer with zero resetting function as recited in claim 2, wherein two fin turning cylinders act on the arm of force L at two ends of the fin handle (2) x The same applies.
6. The non-retractable fin stabilizer hydraulic system with the zeroing function according to claim 1, wherein the fin rotating cylinder is sequentially provided with a first oil cavity, a second oil cavity and a third oil cavity from a push rod end to an end opposite to the push rod;
when the fin handle (2) is reset, the first oil cavity and the second oil cavity of the two fin rotating oil cylinders drain oil synchronously, and the effective areas of pistons of the three oil cavities are the same;
when the fin handle (2) rotates in a reciprocating mode, two fin rotating oil cylinders are provided with two working modes, wherein one fin rotating oil cylinder is based on the working modes of oil inlet of a first oil cavity, oil outlet of a second oil cavity and oil outlet of a third oil cavity, so that a push rod of the fin rotating oil cylinder pulls one end of the fin handle (2) to move into the oil cavity; the other fin rotating oil cylinder is based on the working modes of oil feeding of the second oil cavity, oil discharging of the first oil cavity and oil discharging of the third oil cavity, so that the push rod of the fin rotating oil cylinder pushes the other end of the fin handle (2) to move away from the oil cavity, and reciprocating rotation of the fin handle (2) is achieved by alternately controlling the two working modes of the two fin rotating oil cylinders.
7. The non-retractable fin hydraulic system with zeroing function according to claim 1, wherein the control valve group (4) comprises an accumulator (43); the energy accumulator (43) is arranged on a pipeline of the control valve group (4) and is used for charging hydraulic oil with preset pressure when the non-retractable fin stabilizer hydraulic system with the zeroing function builds pressure.
8. The non-retractable fin hydraulic system with a zeroing function according to claim 1, further comprising an oil tank and cooler assembly (5); the oil tank and cooler assembly (5) is connected with the control valve group (4) and is used for conveying hydraulic oil to the control valve group (4) and collecting the hydraulic oil in the fin rotating oil cylinder group (3) which is controlled to flow back by the control valve group (4).
9. The non-retractable fin hydraulic system with return-to-zero function according to claim 8, wherein the oil tank and cooler assembly (5) includes a motor (50), a plunger pump (51), a cooler (52), an oil return filter (53) and an oil tank (54);
the oil tank (54) comprises an oil outlet and an oil return port, the oil outlet of the oil tank (54) is connected with the plunger pump (51) through a pipeline, the plunger pump (51) is in driving connection through the motor (50), and the plunger pump (51) is simultaneously connected with the oil inlet pipeline of the control valve group (4);
an oil return port of the oil tank (54) is connected with an oil return filter (53), the oil return filter (53) is connected with a cooler (52), and the cooler (52) is connected with an oil return pipeline of the control valve group (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322273984.8U CN220551324U (en) | 2023-08-23 | 2023-08-23 | Non-retractable fin stabilizer hydraulic system with zero resetting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322273984.8U CN220551324U (en) | 2023-08-23 | 2023-08-23 | Non-retractable fin stabilizer hydraulic system with zero resetting function |
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| Publication Number | Publication Date |
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| CN220551324U true CN220551324U (en) | 2024-03-01 |
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| CN202322273984.8U Active CN220551324U (en) | 2023-08-23 | 2023-08-23 | Non-retractable fin stabilizer hydraulic system with zero resetting function |
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| Country | Link |
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| CN (1) | CN220551324U (en) |
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2023
- 2023-08-23 CN CN202322273984.8U patent/CN220551324U/en active Active
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