CN114703909A - Offshore wind power cylinder type foundation model test sinking auxiliary device and using method - Google Patents
Offshore wind power cylinder type foundation model test sinking auxiliary device and using method Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 claims description 66
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- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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Abstract
The invention discloses a sinking auxiliary device for an offshore wind power cylindrical foundation model test and a using method thereof.A sinking auxiliary mechanism is detachably connected to the upper part of a cylindrical foundation structure model and comprises a monitoring assembly, a driving assembly and a grabbing assembly which are sequentially arranged from top to bottom; also comprises a specific using method of the device; the device provided by the invention is a sinking auxiliary device specially developed for offshore wind power cylindrical foundation model tests, compared with the traditional method, the device and the use method thereof can obviously improve the sinking stability and controllability of the cylindrical foundation structure model and can obviously reduce the risk of eccentricity in the sinking process of the cylindrical foundation structure model. The device has simple structure, is practical, convenient and easy to adjust, and is suitable for the cylindrical foundation models with various sizes.
Description
Technical Field
The invention relates to the technical field of indoor model tests of offshore wind power cylindrical foundations, in particular to a sinking auxiliary device for an offshore wind power cylindrical foundation model test and a using method.
Background
In recent years, by combining offshore wind conditions and engineering geological characteristics of China, a novel offshore wind power cylindrical foundation which is convenient to construct and construct, has strong anti-overturning capability and is suitable for various foundation soil qualities is researched and developed and widely applied to coastal wind power development of China. The indoor model test is one of the main technical means for researching a plurality of scientific and technical problems such as the novel basic bearing response characteristic and the like. Generally, such indoor test models generally include a seabed foundation model and a cylindrical foundation structure model, which are prefabricated, and then the cylindrical foundation structure model is inserted into the seabed foundation model to a preset position, and then further test research is performed. Whether the cylinder type foundation structure model can keep an ideal posture in the inserting process and does not shift or rotate and the like, whether the posture of the cylinder type foundation structure can be corrected in time after the cylinder type foundation structure is inserted or not and great direct influence is exerted on the scientificity and accuracy of the indoor model test result.
At present, due to the lack of professional leveling equipment, testers mostly depend on operation experience, adopt methods such as visual inspection and the like, press the cylindrical foundation structure model into the seabed foundation model by using simple instruments or manually, and also adopt the simple instruments or manually to correct the posture of the inserted cylindrical foundation structure model. Obviously, the operation method can cause that the actual posture of the structural model has a certain difference from the expected posture, the error size depends on the operation experience of a tester seriously, and the cylinder-type foundation structure can not be inserted successfully at one time.
With the continuous and intensive research on the offshore wind power cylinder foundation, the adverse effect generated by the operation method cannot be ignored. In order to meet the requirement of high-precision model test of offshore wind power cylinder foundation at the present stage, it is inevitable to develop a professional sinking auxiliary device.
Disclosure of Invention
The invention aims to provide an offshore wind power cylinder type foundation model test sinking auxiliary device and a using method thereof, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides an offshore wind power cylindrical foundation model test sinking auxiliary device which comprises a cylindrical foundation structure model and a computer, wherein the upper part of the cylindrical foundation structure model is detachably connected with a sinking auxiliary mechanism, and the sinking auxiliary mechanism comprises a monitoring assembly, a driving assembly and a grabbing assembly which are sequentially arranged from top to bottom;
the monitoring assembly comprises a plurality of groups of laser displacement sensors, and each group of laser displacement sensors is electrically connected with a monitoring data acquisition system;
the driving assembly comprises a plurality of groups of hydraulic telescopic rods, and the hydraulic telescopic rods are connected with a hydraulic pump; the driving assembly further comprises a pneumatic pump, and the pneumatic pump is communicated with the grabbing assembly;
the grabbing component comprises a transition section grabbing component and a barrel surface grabbing component.
Preferably, the monitoring assembly further comprises a first steel plate, the first steel plate is provided with a plurality of groups of first holes for mounting the laser displacement sensors, and the number of the first holes is the same as that of the laser displacement sensors; four groups of supporting legs are arranged below the first steel plate and correspond to four corners of the first steel plate respectively; the supporting legs are used for supporting and fixing the whole monitoring assembly, and the distance between the supporting legs is designed according to the size of the model box; the supporting legs are required to be fixed outside the range of the model box so as to ensure the absolute stability of the monitoring assembly; the first steel plate is provided with a plurality of first holes serving as laser transmission channels of the laser displacement sensor; the laser displacement sensor is arranged above the first hole of the first steel plate, and monitoring data are transmitted to the monitoring data acquisition system through the data line and then transmitted to the computer.
Preferably, the driving assembly further comprises a second steel plate, a plurality of groups of second holes are formed in the second steel plate, each group of second holes is in threaded connection with each group of hydraulic telescopic rods, and a first hydraulic hose is communicated between each group of hydraulic telescopic rods and the hydraulic pump; the hydraulic pump is connected with the computer through a data line; the hydraulic telescopic rod is connected with the hydraulic pump through a first hydraulic hose; the computer controls the hydraulic pump to further realize the extension and compression of the hydraulic telescopic rod.
A third hole is formed in the second steel plate, an air pressure hose is detachably connected inside the third hole, one end of the air pressure hose is communicated with the air pressure pump, and the other end of the air pressure hose is communicated with a cylinder surface grabbing component; the pneumatic pump is connected with the computer through a data line; the rubber sucker in the cylinder surface grabbing component is connected with the pneumatic pump through the pneumatic hose; the computer controls the air pressure pump to further realize air extraction and air supply of the rubber sucker; the second steel plate is fixed at the top of the model box, and the steel plate is also provided with a plurality of second holes and third holes which are used as a laser transmission channel of the laser displacement sensor and an embedding channel of a hydraulic telescopic rod, a pneumatic hose and the like;
preferably, the hydraulic telescopic rod comprises a steel shell, the steel shell is a hollow sleeve with a closed top and an open bottom, and threads matched with the second hole are engraved on the outer side of the steel shell in the circumferential direction; the connecting shaft is connected with the inner portion of the steel shell in a threaded mode, the connecting shaft is a hollow sleeve with the top portion closed and the bottom portion open, a push rod is detachably connected to the inner portion of the connecting shaft, the push rod is close to the end portion of the connecting shaft and a group of hydraulic cavities are arranged between the end face of the inner portion of the connecting shaft, and the hydraulic cavities are communicated with the hydraulic pump through first hydraulic hoses. The steel shell is a hollow sleeve with an opening at the bottom, the exterior of the steel shell is provided with threads for connecting with the first steel plate, and the interior of the steel shell is also provided with threads for connecting with the connecting shaft; the outside of the connecting shaft is provided with threads, and the inside of the connecting shaft is hollow and used for embedding a push rod.
Preferably, the transition section grabbing component comprises a rubber sealing sheet, the rubber sealing sheet is in a circular ring shape, a rubber water bag is connected inside the rubber sealing sheet, the rubber water bag is in a circular ring shape, and the rubber sealing sheet is matched with the rubber water bag; two groups of second hydraulic hoses are communicated with the upper part of the rubber water bag, are arranged in a central symmetry mode relative to the rubber water bag, and are communicated with the hydraulic pump; the annular rubber sealing sheet is used for protecting the transition section of the cylindrical foundation model; the annular rubber water bag is positioned at the upper part of the rubber sealing sheet and is injected with water and pumped by the rubber hose to realize the attachment or separation with the curved surface of the transition section of the cylindrical basic model, namely the grabbing of the transition section component of the cylindrical basic model is realized; the circular steel top cover is buckled above the rubber water bag, and the top of the top cover is connected with the connecting rod through threads; through holes are formed in two sides of the circular steel top cover and are used as distribution channels of the air pressure hoses.
A top cover is lapped on the upper part of the rubber sealing sheet, and the top cover is made of steel; a plurality of groups of connecting rods are fixedly arranged on the upper part of the top cover at equal intervals in the circumferential direction, the interiors of the plurality of groups of connecting rods are all of a hollow structure, and the top of each group of connecting rods is communicated with the hydraulic telescopic rod; through holes are symmetrically formed in the upper portion of the top cover relative to the center of the top cover, and the second hydraulic hose penetrates through the through holes.
Preferably, the cylinder surface grabbing component comprises a rubber sucker, the outside of the rubber sucker is communicated with the air pressure hose, and a protective shell is sleeved on the outside of the rubber sucker; the protective housing is communicated with the connecting rod. The pneumatic pump extracts air between the rubber sucker and the top surface of the cylindrical foundation to realize grabbing of the cylindrical foundation model; the steel shell is connected with the hydraulic telescopic rod through a connecting rod.
Preferably, the top cap is ring-shaped, the connecting rods are provided with six groups, and the six groups of connecting rods are arranged in a hexagonal symmetrical mode around the center of the top cap.
Preferably, the pneumatic pump, the hydraulic pump and the monitoring data acquisition system are electrically connected with the computer.
A use method of an offshore wind power cylinder type foundation model test sinking auxiliary device comprises the following steps:
a) after all the parts are installed and connected, firstly, the cylinder surface grabbing component is contacted with the cylinder surface of the cylinder type basic model, the air pressure pump is started, and air in the rubber suction cup is extracted until the cylinder type basic model is grabbed successfully;
b) sequentially sleeving the transition section grabbing components into the transition section of the cylindrical foundation model, then starting the monitoring assembly, and obtaining the initial vertical distance between each laser displacement sensor and the surface of the cylindrical foundation;
c) starting a hydraulic pump, and sequentially adjusting the expansion amount of each hydraulic telescopic rod until the error between the vertical distances between each laser displacement sensor and the surface of the cylindrical foundation is less than 1%;
d) injecting water into the annular rubber water bag in the transition section grabbing component through a hydraulic pump until the rubber water bag is attached to the curved surface of the transition section, grabbing the transition section of the cylindrical foundation model, and repeating the step (c);
e) injecting liquid into all the hydraulic telescopic rods at constant speed through a hydraulic pump, so that all the hydraulic telescopic rods extend synchronously;
f) monitoring the sinking posture of the cylinder type basic model through a monitoring component, pumping water to an annular rubber water bag in the transition section grabbing component after the cylinder type basic model sinks to a design position, removing the transition section grabbing component, repeating the step (c) again, and leveling the model;
g) carry out the gas injection to all rubber suction cups, carry out liquid constant speed extraction to all hydraulic telescoping rod through the hydraulic pump simultaneously for all hydraulic telescoping rod shrink in step removes the section of thick bamboo face and snatchs the component.
The invention discloses the following technical effects: the device provided by the invention is a sinking auxiliary device specially developed for offshore wind power cylindrical foundation model tests, compared with the traditional method, the device and the use method thereof can obviously improve the sinking stability and controllability of the cylindrical foundation structure model and can obviously reduce the risk of eccentricity in the sinking process of the cylindrical foundation structure model. The device has simple structure, is practical, convenient and easy to adjust, and is suitable for the cylindrical foundation models with various sizes.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of the overall structure of the auxiliary sinking device of the present invention;
FIG. 2 is a three-dimensional view of a monitoring assembly of the present invention;
FIG. 3 is a schematic view of the positional relationship of the mold box and the monitoring assembly;
FIG. 4 is a schematic structural view of a second steel plate according to the present invention;
FIG. 5 is a schematic view of the position relationship of the hydraulic telescopic rod of the present invention;
FIG. 6 is a schematic view of the hydraulic ram of the present invention;
FIG. 7 is a schematic view of a grasping element according to the present invention;
FIG. 8 is a schematic view of a connecting rod according to the present invention;
FIG. 9 is a schematic view of the rubber water bladder of the present invention;
FIG. 10 is a schematic view of the rubber sealing piece structure of the present invention;
FIG. 11 is a schematic view of the rubber suction cup of the present invention;
fig. 12 is a schematic view of the position relationship between the protective shell and the connecting rod according to the present invention.
Wherein: 1. a monitoring component; 11. supporting legs; 12. a first steel plate; 13. a first hole; 131. a through hole; 132. a model box; 14. a laser displacement sensor; 15. a second hole; 16. a third hole; 2. a drive assembly; 21. a second steel plate; 22. a hydraulic telescopic rod; 23. a steel housing; 24. a connecting shaft; 25. a hydraulic chamber; 26. a push rod; 27. a thread; 3. a grasping assembly; 31. a transition section grasping member; 32. a barrel face gripping member; 33. a rubber sealing sheet; 34. a rubber water bag; 35. a top cover; 36. a protective shell; 37. a rubber suction cup; 4. a cylindrical infrastructure model; 5. a data line; 6. monitoring a data acquisition system; 7. a pneumatic hose; 8. a pneumatic pump; 9. a first hydraulic hose; 901. a second hydraulic hose; 10. a hydraulic pump; 111. a computer; 222. a connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-12, the invention provides an offshore wind power cylindrical foundation model test sinking auxiliary device, which comprises a cylindrical foundation structure model 4 and a computer 111, wherein the upper part of the cylindrical foundation structure model 4 is detachably connected with a sinking auxiliary mechanism, and the sinking auxiliary mechanism comprises a monitoring assembly 1, a driving assembly 2 and a grabbing assembly 3 which are sequentially arranged from top to bottom; the device provided by the invention is a sinking auxiliary device specially developed for offshore wind power cylindrical foundation model tests, compared with the traditional method, the device and the use method thereof can obviously improve the sinking stability and controllability of the cylindrical foundation structure model 4 and can obviously reduce the risk of eccentricity in the sinking process of the cylindrical foundation structure model 4. The device has simple structure, is practical, convenient and easy to adjust, and is suitable for the cylindrical foundation models with various sizes.
The monitoring assembly 1 comprises a plurality of groups of laser displacement sensors 14, and each group of laser displacement sensors 14 is electrically connected with a monitoring data acquisition system 6; the monitoring assembly 1 further comprises a first steel plate 12, a plurality of groups of first holes 13 used for mounting the laser displacement sensors 14 are formed in the first steel plate 12, and the number of the first holes 13 is the same as that of the laser displacement sensors 14; four groups of supporting legs 11 are arranged below the first steel plate 12, and the four groups of supporting legs 11 correspond to four corners of the first steel plate 12 respectively. One end of the monitoring component 1 is connected with a monitoring data acquisition system 6 and a computer 111 through a data line 5; the other end is fixed outside the range of the model box through a supporting leg 11; in implementation, the monitoring assembly 1 specifically comprises a supporting leg 11, a first steel plate 12 and a plurality of laser displacement sensors 14; the laser displacement sensor 14 monitors the spatial position of the cylinder foundation through the hole on the first steel plate 12.
The driving assembly 2 comprises a plurality of groups of hydraulic telescopic rods 22, and the plurality of groups of hydraulic telescopic rods 22 are connected with a hydraulic pump 10; the driving assembly 2 further comprises a pneumatic pump 8, and the pneumatic pump 8 is communicated with the grabbing assembly 3; the gripping assembly 3 comprises a transition gripping member 31 and a barrel gripping member 32.
The driving assembly 2 further comprises a second steel plate 21, a plurality of groups of second holes 15 are formed in the second steel plate 21, each group of second holes 15 is in threaded connection with each group of hydraulic telescopic rods 22, and a first hydraulic hose 9 is communicated between each group of hydraulic telescopic rods 22 and the hydraulic pump 10; the hydraulic telescopic rod 22 comprises a steel shell 23, the steel shell 23 is a hollow sleeve with a closed top and an open bottom, and threads 27 matched with the second hole 15 are engraved on the outer side of the steel shell 23 in the circumferential direction; the connecting shaft 24 is connected with the inner threads 27 of the steel shell 23, the connecting shaft 24 is a hollow sleeve with a closed top and an open bottom, the inside of the connecting shaft 24 is detachably connected with a push rod 26, a group of hydraulic cavities 25 are arranged between the end part of the push rod 26 close to the connecting shaft 24 and the inner end face of the connecting shaft 24, and the hydraulic cavities 25 are communicated with the hydraulic pump 10 through a first hydraulic hose 9; a third hole 16 is formed in the second steel plate 21, an air pressure hose 7 is detachably connected to the inside of the third hole 16, one end of the air pressure hose 7 is communicated with an air pressure pump 8, and the other end of the air pressure hose 7 is communicated with a cylinder surface grabbing component 32; one end of the driving component 2 is respectively connected with a pneumatic pump 8 and a hydraulic pump 10 through a pneumatic hose 7 and a hydraulic hose; the other end is connected with the grabbing component 3 through a connecting rod 222; the grabbing component 3 is directly connected with the cylindrical foundation structure model 4; in implementation, the driving assembly 2 comprises a second steel plate 21 and a hydraulic telescopic rod 22; the hydraulic telescopic rod 22 specifically comprises a steel shell, a connecting shaft 24 and a push rod 26; the steel shell 23 is a hollow sleeve with a closed top and an open bottom, the exterior of the steel shell is provided with threads 27 for connecting with the second steel plate 21, and the interior of the steel shell is also provided with threads 27 for connecting with the connecting shaft 24; the connecting shaft 24 is externally provided with threads 27, and the inside of the connecting shaft is hollow for embedding a push rod 26; a hydraulic cavity 25 is distributed between the push rod 26 and the connecting shaft 24 and is connected with the hydraulic pump 10 through a hose; insulating liquid is injected into the hydraulic cavity 25 through the hydraulic pump 10 to extract, so that the hydraulic telescopic rod 22 extends or contracts.
The transition section grabbing component 31 comprises a rubber sealing sheet 33, the rubber sealing sheet 33 is annular, a rubber water bag 34 is connected inside the rubber sealing sheet 33, the rubber water bag 34 is annular, and the rubber sealing sheet 33 is matched with the rubber water bag 34; two groups of second hydraulic hoses 901 are communicated with the upper part of the rubber water bag 34, the two groups of second hydraulic hoses 901 are symmetrically arranged around the center of the rubber water bag 34, and the two groups of second hydraulic hoses 901 are communicated with the hydraulic pump 10; in practice, the grabbing component 3 comprises a transition section grabbing component 31 and a cylinder surface grabbing component 32; the transition section grabbing component 31 consists of 1 circular rubber sealing sheet 33, 1 circular rubber water sac 34, 1 circular steel top cover 35 and 6 connecting rods 222; the annular rubber sealing gasket is used for protecting the transition section of the cylindrical foundation model; the annular rubber water bag 34 is positioned at the upper part of the rubber sealing sheet 33 and is injected with water through two hydraulic hoses to pump water so as to realize the attachment and separation with the curved surface of the transition section of the cylindrical basic model, namely, the cylindrical basic model is grabbed and separated; the circular steel top cover 35 is buckled above the rubber water bag 34, and the top of the top cover 35 is connected with the connecting rod 222 through the thread 27 (not marked in the figure); holes are formed in two sides of the circular steel top cover 35 and are used as channels of the hydraulic hose.
The single cylinder surface grabbing component 32 consists of a rubber suction cup 37, a steel protective shell 36, a hose and a connecting rod 222; the rubber sucker 37 is positioned inside the steel protective shell 36 and is connected with the pneumatic pump 8 through a rubber hose; when the device works, air between the rubber suction disc 37 and the top surface of the cylindrical foundation can be pumped by the pneumatic pump 8, so that the barrel surface of the cylindrical foundation model can be grabbed; when the work is finished, the separation from the barrel surface of the barrel-shaped basic model can be realized by injecting gas into the rubber sucker 37; the steel shell is connected with the hydraulic telescopic rod 22 through the connecting rod 222, and the cylinder type basic model can be driven to lift by stretching and retracting of the hydraulic telescopic rod 22.
A top cover 35 is lapped on the upper part of the rubber sealing sheet 33, and the top cover 35 is made of steel; a plurality of groups of connecting rods 222 are fixedly arranged on the upper part of the top cover 35 at equal intervals in the circumferential direction, the inner parts of the groups of connecting rods 222 are all of a hollow structure, and the top of each group of connecting rods 222 is communicated with the hydraulic telescopic rod 22; the upper part of the top cover 35 is provided with through holes in central symmetry with respect to the top cover 35, and the second hydraulic hose 901 penetrates through the through holes.
The cylinder surface grabbing component 32 comprises a rubber sucker 37, the outside of the rubber sucker 37 is communicated with the air pressure hose 7, and a protective shell 36 is sleeved outside the rubber sucker 37; the protective shell 36 is in communication with the connecting rod 222.
The top cover 35 is circular, six groups of connecting rods 222 are arranged, and the six groups of connecting rods 222 are arranged in a hexagonal symmetrical mode around the center of the top cover 35; the stability of the entire device can be enhanced.
The pneumatic pump 8, the hydraulic pump 10 and the monitoring data acquisition system 6 are all electrically connected with the computer 111.
The working process is as follows:
a) after all the parts are installed and connected, firstly, the cylinder surface grabbing component 32 is contacted with the cylinder surface of the cylinder type basic model, the air pressure pump 8 is started, and the air in the rubber suction cup 37 is extracted until the cylinder type basic model is grabbed successfully;
b) sequentially sleeving the transition section grabbing components 31 into the transition section of the cylindrical foundation model, then starting the monitoring assembly 1, and obtaining the initial vertical distance between each laser displacement sensor 14 and the surface of the cylindrical foundation;
c) starting the hydraulic pump 10, and sequentially adjusting the expansion amount of each hydraulic expansion link 22 until the error between the vertical distances between each laser displacement sensor 14 and the cylindrical foundation surface is less than 1%;
d) injecting water into the annular rubber water bag 34 in the transition section grabbing component 31 through the hydraulic pump 10 until the rubber water bag 34 is attached to the curved surface of the transition section, grabbing the transition section of the cylindrical basic model, and repeating the step (c);
e) injecting liquid into all the hydraulic telescopic rods 22 at constant speed through the hydraulic pump 10, so that all the hydraulic telescopic rods 22 extend synchronously;
f) monitoring the sinking posture of the cylindrical foundation model through the monitoring assembly 1, pumping water to the annular rubber water bag 34 in the transition section grabbing component 31 after the cylindrical foundation model sinks to the design position, removing the transition section grabbing component 31, repeating the step (c) again, and leveling the model;
g) all the rubber suction cups 37 are inflated, and all the hydraulic telescopic rods 22 are simultaneously extracted at a constant speed by the hydraulic pump 10, so that all the hydraulic telescopic rods 22 are synchronously contracted, and the barrel surface grabbing members 32 are removed.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (9)
1. The utility model provides an experimental auxiliary device that sinks of marine wind power cartridge type foundation model, includes cartridge type foundation structure model (4) and computer (111), its characterized in that: the upper part of the cylindrical foundation structure model (4) is detachably connected with a sinking auxiliary mechanism, and the sinking auxiliary mechanism comprises a monitoring assembly (1), a driving assembly (2) and a grabbing assembly (3) which are sequentially arranged from top to bottom;
the monitoring assembly (1) comprises a plurality of groups of laser displacement sensors (14), and each group of laser displacement sensors (14) is electrically connected with a monitoring data acquisition system (6);
the driving assembly (2) comprises a plurality of groups of hydraulic telescopic rods (22), and the hydraulic telescopic rods (22) are connected with a hydraulic pump (10); the driving assembly (2) further comprises a pneumatic pump (8), and the pneumatic pump (8) is communicated with the grabbing assembly (3);
the grabbing component (3) comprises a transition section grabbing component (31) and a barrel surface grabbing component (32).
2. The marine wind power cylinder type foundation model test sinking auxiliary device of claim 1, characterized in that: the monitoring assembly (1) further comprises a first steel plate (12), a plurality of groups of first holes (13) used for mounting the laser displacement sensors (14) are formed in the first steel plate (12), the number of the first holes (13) is the same as that of the laser displacement sensors (14), four groups of supporting legs (11) are arranged below the first steel plate (12), and the four groups of supporting legs (11) correspond to four corners of the first steel plate (12) respectively.
3. The marine wind power cylinder type foundation model test sinking auxiliary device of claim 2, characterized in that: the driving assembly (2) further comprises a second steel plate (21), a plurality of groups of second holes (15) are formed in the second steel plate (21), each group of second holes (15) is in threaded connection with each group of hydraulic telescopic rods (22) (27), and a first hydraulic hose (9) is communicated between each group of hydraulic telescopic rods (22) and the hydraulic pump (10);
the steel plate is characterized in that a third hole (16) is formed in the second steel plate (21), an air pressure hose (7) is detachably connected to the inside of the third hole (16), one end of the air pressure hose (7) is communicated with the air pressure pump (8), and the other end of the air pressure hose (7) is communicated with a cylinder face grabbing component (32).
4. The marine wind power cylinder type foundation model test sinking auxiliary device of claim 3, characterized in that: the hydraulic telescopic rod (22) comprises a steel shell (23), the steel shell (23) is a hollow sleeve with a closed top and an open bottom, and threads (27) matched with the second hole are engraved on the outer side of the steel shell (23) in the circumferential direction; the steel shell (23) internal thread (27) is connected with connecting axle (24), connecting axle (24) are top-closed, bottom open-ended cavity sleeve, connecting axle (24) inside can be dismantled and be connected with push rod (26), push rod (26) are close to the tip of connecting axle (24) with be provided with a set of hydraulic pressure chamber (25) between connecting axle (24) the inside terminal surface, hydraulic pressure chamber (25) through first hydraulic hose (9) with hydraulic pump (10) intercommunication.
5. The marine wind power cylinder type foundation model test sinking assisting device as claimed in claim 4, is characterized in that: the transition section grabbing component (31) comprises a rubber sealing piece (33), the rubber sealing piece (33) is in a circular ring shape, a rubber water bag (34) is connected inside the rubber sealing piece (33), the rubber water bag (34) is in a circular ring shape, and the rubber sealing piece (33) is matched with the rubber water bag (34); two groups of second hydraulic hoses (901) are communicated with the upper part of the rubber water bag (34), the two groups of second hydraulic hoses (901) are symmetrically arranged around the center of the rubber water bag (34), and the two groups of second hydraulic hoses (901) are communicated with the hydraulic pump (10);
a top cover (35) is lapped on the upper part of the rubber sealing sheet (33), and the top cover (35) is made of steel; a plurality of groups of connecting rods (222) are fixedly arranged on the upper part of the top cover (35) at equal intervals in the circumferential direction, the interiors of the plurality of groups of connecting rods (222) are all of a hollow structure, and the top of each group of connecting rods (222) is communicated with the hydraulic telescopic rod (22); through holes are symmetrically formed in the upper portion of the top cover (35) relative to the center of the top cover (35), and the second hydraulic hoses (901) penetrate through the through holes.
6. The marine wind power cylinder type foundation model test sinking assisting device as claimed in claim 5, is characterized in that: the cylinder surface grabbing component (32) comprises a rubber suction cup (37), the outside of the rubber suction cup (37) is communicated with the air pressure hose (7), and a protective shell (36) is sleeved on the outside of the rubber suction cup (37); the protective shell (36) is communicated with the connecting rod (222).
7. The marine wind power cylinder type foundation model test sinking auxiliary device of claim 6, characterized in that: the top cover (35) is in a circular ring shape, six groups of connecting rods (222) are arranged, and the six groups of connecting rods (222) are arranged in a hexagonal symmetrical mode around the center of the top cover (35).
8. The marine wind power cylinder type foundation model test sinking auxiliary device of claim 7, characterized in that: the pneumatic pump (8), the hydraulic pump (10) and the monitoring data acquisition system (6) are electrically connected with the computer (111).
9. A use method of an offshore wind power cylinder type foundation model test sinking auxiliary device is applied to the offshore wind power cylinder type foundation model test sinking auxiliary device of any one of claims 1 to 8, and is characterized in that: the method comprises the following steps:
a) after all the parts are installed and connected, firstly, the cylinder surface grabbing component (32) is in contact with the cylinder surface of the cylinder type basic model, the air pressure pump (8) is started, and air in the rubber suction cup (37) is extracted until the cylinder type basic model is grabbed successfully;
b) sequentially sleeving a transition section grabbing component (31) into the transition section of the cylindrical foundation model, then starting a monitoring assembly (1) and obtaining the initial vertical distance between each laser displacement sensor (14) and the surface of the cylindrical foundation;
c) starting a hydraulic pump (10), and sequentially adjusting the telescopic amount of each hydraulic telescopic rod (20) until the error between the vertical distance between each laser displacement sensor (14) and the surface of the cylindrical foundation is less than 1%;
d) injecting water into a circular rubber water bag (34) in the transition section grabbing component (31) through a hydraulic pump (10) until the rubber water bag (34) is attached to the curved surface of the transition section, grabbing the transition section of the cylindrical basic model, and repeating the step (c);
e) injecting liquid into all the hydraulic telescopic rods (22) at a constant speed through the hydraulic pump (10) so that all the hydraulic telescopic rods (22) extend synchronously;
f) monitoring the sinking posture of the cylindrical foundation model through the monitoring assembly (1), pumping water to an annular rubber water bag (34) in the transition section grabbing component (31) after the cylindrical foundation model sinks to the design position, removing the transition section grabbing component (31), repeating the step (c) again, and leveling the model;
g) and (3) injecting gas into all the rubber suction cups (37), and simultaneously extracting all the hydraulic telescopic rods (22) at a constant speed through the hydraulic pump (10), so that all the hydraulic telescopic rods (22) contract synchronously, and removing the cylinder surface grabbing component (32).
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Effective date of registration: 20231211 Address after: 210029 No. 223, Guangzhou Road, Gulou District, Jiangsu, Nanjing Patentee after: NANJING HYDRAULIC Research Institute Patentee after: CHINA COMMUNICATION CONSTRUCTION COMPANY FIRST HARBOUR CONSULTANTS Co.,Ltd. Address before: 223 Guangzhou road, Gulou District, Nanjing, Jiangsu 210009 Patentee before: NANJING HYDRAULIC Research Institute |