Horizontal direction-changing loading model test device for offshore wind power foundation

Abstract

The invention relates to an offshore wind power foundation horizontal turning loading model test device, and belongs to the technical field of offshore wind power foundation models. Comprising a water tank and a test box, a floating table is arranged in the test box, a wind power foundation model is arranged at the upper end of the floating table, a sea wave simulation mechanism and a sea wind simulation mechanism are arranged on the inner and outer sides of the water tank respectively, the sea wave simulation mechanism comprises a first driving assembly and a push plate, and the first driving assembly drives the push plate to slide back and forth; the simulated sea wind mechanism comprises a nozzle and an inflator which are communicated with each other; a piston which slides back and forth is arranged in the inflator through a second driving assembly; a linkage mechanism is arranged between the sea wave simulation mechanism and the sea wind simulation mechanism, and the linkage mechanism controls the first driving assembly and the second driving assembly to act synchronously or independently; the problems that a sea wave and sea wind simulation system of an existing offshore wind power foundation model test device lacks a linkage mechanism, a real wind wave coupling environment cannot be accurately simulated, and consequently test result deviation is large, operation is tedious and efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of offshore wind power foundation model, and particularly relates to a horizontal variable-direction loading model test device for offshore wind power foundation. BACKGROUND

[0002] With the increasing demand for clean energy worldwide, offshore wind power, as a highly potential renewable energy, has attracted extensive attention and rapid development. Offshore wind power foundation is directly related to the stability and safety of the entire wind power generation system. Therefore, before design and construction, the performance of the offshore wind power foundation needs to be deeply researched and evaluated through model test. Model test can simulate the complex environmental factors faced by offshore wind power foundation in actual operation process, provide reliable basis for optimization design, and has important significance for ensuring the long-term stable operation of offshore wind farm.

[0003] At present, the common offshore wind power foundation model test device generally adopts independent sea wave simulation system and sea wind simulation system when simulating wind and wave environment. The sea wave simulation system generally drives the paddle or push plate to stir the water body through the motor to generate different forms of waves; the sea wind simulation system uses a fan or air pump to generate airflow to simulate the effect of sea wind on the model. These devices are relatively simple in structure, and the sea wave and sea wind simulation systems are independently operated. The operating personnel controls the operating parameters of the sea wave and sea wind simulation systems respectively to carry out related tests.

[0004] However, in the actual marine environment, sea waves and sea winds often interact and act on offshore wind power foundation simultaneously. The existing test device cannot accurately simulate this real wind and wave coupling environment due to the lack of linkage mechanism between the sea wave and sea wind simulation systems. For example, when simulating the working condition of strong sea waves accompanied by strong sea winds, the existing device cannot guarantee the positive correlation between the intensity of sea waves and sea winds, resulting in a large deviation between the test results and the actual situation, and cannot provide accurate data support for the design of offshore wind power foundation. In addition, the independent simulation system makes the operation process more complicated and the test efficiency is low, which cannot meet the diversified and high-precision test requirements, and restricts the further development of offshore wind power foundation technology. Therefore, the present application provides a horizontal variable-direction loading model test device for offshore wind power foundation to solve the problems in the prior art. SUMMARY

[0005] The present application overcomes the shortcomings of the prior art and provides a horizontal variable-direction loading model test device for offshore wind power foundation. The problems of the prior art, such as the lack of linkage mechanism between the sea wave and sea wind simulation systems of the existing offshore wind power foundation model test device, the inability to accurately simulate the real wind and wave coupling environment, and the large deviation of test results, complicated operation and low efficiency are solved.

[0006] In order to achieve the above purpose, the present application is realized by the following technical scheme.

[0007] The utility model provides a horizontal direction loading model test device of offshore wind power foundation, including the water tank and test box of opposite, is provided with the floating platform in the test box inside, is installed with wind power foundation model on the floating platform upper end, is provided with the simulation sea wave mechanism in the water tank inside, simulation sea wave mechanism includes first drive assembly and push plate, and first drive assembly drives push plate reciprocating slide, is provided with simulation sea wind mechanism outside the water tank, simulation sea wind mechanism includes the nozzle and the air cylinder that communicate with each other, nozzle is towards wind power foundation model side, and the piston reciprocating slide is arranged in the air cylinder through second drive assembly, is provided with linkage mechanism between sea wave simulation mechanism and sea wind simulation mechanism, linkage mechanism includes first connecting column and second connecting column, first connecting column and second connecting column are connected with first drive assembly and second drive assembly respectively, and the linkage block is slidably arranged between first connecting column and second connecting column, when linkage block is simultaneously connected with first connecting column and second connecting column, first drive assembly and second drive assembly synchronous action, when linkage block only is connected with first connecting column, first drive assembly and second drive assembly independent action.

[0008] Further, the test box is located at the front side of the water tank, and the test tank is filled with test water, a water passage is arranged at the upper end of the side wall of the water tank and the test tank, and the inside of the water tank and the inside of the test tank are connected through the two water passages; a display is fixedly arranged on the outer wall of the test tank, a plurality of sensors required for testing are arranged in the wind power foundation model, and the sensors are electrically connected with the display.

[0009] Further, the first drive assembly includes a motor, a fixed seat, a reciprocating screw rod, a guide rod, a threaded block, and a sliding block; a group of fixed seats are fixedly arranged on the inner walls of the left and right sides of the water tank, a reciprocating screw rod is rotatably arranged in one of the fixed seats, and a guide rod is rotatably arranged in the other fixed seat; a threaded block is screwed onto the outer side of the reciprocating screw rod, and a sliding block is slidably sleeved onto the outer side of the guide rod; the left and right ends of the push plate are fixedly connected with the threaded block and the sliding block, respectively; the push plate is inclined, and a motor is further fixedly arranged on the inner wall of the water tank; the output shaft of the motor is fixedly connected with the end of the reciprocating screw rod.

[0010] Further, the nozzle is fixedly arranged on the front upper end of the water tank through a support, the air cylinder is fixedly arranged on the outer wall of the water tank, an air inlet is arranged on the side wall of the air cylinder, the front end of the air cylinder is connected with the nozzle through an air outlet pipe, and a one-way valve is arranged in the air inlet and the air outlet pipe.

[0011] Furthermore, the second driving assembly includes a sleeve rod, a cross frame, a turntable, and a shift rod; two front-to-back symmetrical sleeve rods are fixedly provided on the outer wall of the water tank on the rear side of the air cylinder, and a cross frame is slidably provided between the two sleeve rods; a turntable is rotatably provided on the outer wall of the water tank between the two sleeve rods, and a shift rod is fixedly provided at the outer edge of the turntable and is slidably inserted into the inside of the cross frame; the front end of the cross frame is inserted from the rear end of the air cylinder and fixedly connected to the piston.

[0012] Furthermore, the cross frame includes a front rod, a rear rod, and a square frame. The front rod and the rear rod are both horizontally arranged along the front-to-back direction. The front rod and the rear rod are respectively fixedly arranged in the middle of the front end and the middle of the rear end of the square frame. The front rod and the rear rod are respectively slidably inserted into the inside of the two sleeve rods, the front end of the front rod extends into the rear end of the air cylinder, and the shift rod is slidably inserted into the inside of the square frame.

[0013] Furthermore, the linkage assembly also includes a bevel gear; the first connecting column is rotatably inserted into the outer wall of the water tank, and a bevel gear is fixedly provided at one end of the first connecting column located on the inner side of the water tank, and a bevel gear is also fixedly provided at the rear end of the reciprocating screw, and the two bevel gears are meshed with each other; the second connecting column is fixedly provided at the center of the end face of the turntable close to the water tank, and a cylindrical movable groove is provided at the center of one end of the first connecting column located on the outer side of the water tank and at the center of the end of the second connecting column away from the turntable, and two symmetrical notch grooves are provided on the side walls of the movable groove, and a card groove is provided on the inner walls on both sides of each notch groove; wherein the depth of the notch groove on the first connecting column is greater than the depth of the notch groove on the second connecting column.

[0014] Furthermore, the same movable column is slidably inserted into the movable groove of the first connecting column and the movable groove of the second connecting column, and two of the linkage blocks are fixedly provided on the outer wall of the middle section of the movable column, and a card bead is fixedly provided on both sides of each linkage block; each linkage block is slidably engaged with the inside of the notch groove on the same side of the first connecting column and the second connecting column, and the card bead on the linkage block is selectively engaged with the inside of the card groove of the notch groove of the first connecting column or the second connecting column.

[0015] Furthermore, when the card bead on the linkage block is engaged with the card slot of the notch groove of the second connecting column, one end of the linkage block enters the notch groove of the first connecting column, and the other end of the linkage block enters the notch groove of the second connecting column. When the first connecting column rotates, the second connecting column can be driven to rotate through the linkage block, and the first drive component and the second drive component move synchronously.

[0016] Further, when the clamping bead on the linkage block is clamped in the clamping groove inside the notch groove of the first connecting column, the linkage block completely enters the notch groove inside the first connecting column, the linkage block does not enter the notch groove inside the second connecting column, and the first connecting column cannot drive the second connecting column to rotate through the linkage block when the first connecting column rotates, so that the first driving assembly and the second driving assembly independently act.

[0017] The beneficial effects generated by the present application relative to the prior art are: 1. Through the cooperative operation of the sea wave simulation mechanism, the sea wind simulation mechanism and the cooperation mechanism, the wind and wave environment faced by the offshore wind power foundation can be truly simulated, the sea wave simulation mechanism generates waves with different frequencies and wave heights by the push plate designed at a specific angle to push the water body, the sea wind simulation mechanism simulates different intensity sea winds by controlling the airflow blowing out by the piston movement, and the cooperation mechanism realizes the synchronous operation of the two with positive correlation of intensity, so that the test environment is closer to the actual marine working condition, and the performance of the wind power foundation under complex wind and wave is more accurately researched.

[0018] 2. The device provides various operation modes, can independently perform sea wave or sea wind simulation test, can realize synchronous simulation of the two through the cooperation mechanism, the operation parameters such as motor speed and artificial pushing and pulling intensity can be adjusted, different test requirements are met, the practicability of each component is fully considered, the operation is convenient and stable, a flexible and reliable test means is provided for the offshore wind power foundation model test. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described in detail below with reference to the drawings: Figure 1 is a structural schematic diagram of the whole of the present application Figure One ; Figure 2 is a structural schematic diagram of the whole of the present application Figure Two ; Figure 3 is a structural schematic diagram of the whole of the present application Figure Three ; Figure 4 is a connection schematic diagram of the sea wind simulation mechanism Figure 5 is a structural schematic diagram of the linkage mechanism Figure 6 is an exploded view of the linkage mechanism Wherein, 1 is a water tank, 2 is a test tank, 3 is a floating platform, 4 is a wind power foundation model, 5 is a display, 6 is a simulated sea wave mechanism, 601 is a fixed seat, 602 is a reciprocating screw rod, 603 is a guide rod, 604 is a threaded block, 605 is a sliding block, 606 is a push plate, 7 is a simulated sea wind mechanism, 701 is a sleeve rod, 702 is a cross frame, 703 is a rotating disc, 704 is a push rod, 705 is a piston, 706 is an air cylinder, 707 is an air inlet, 708 is an air outlet pipe, 709 is a nozzle, 8 is a linkage mechanism, 801 is a first connecting column, 802 is a movable groove, 803 is a notch groove, 804 is a clamping groove, 805 is a movable column, 806 is a linkage block, 807 is a clamping bead, 808 is a bevel gear, and 809 is a second connecting column. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application is further described in detail in conjunction with the embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. The technical solutions of the present application are described in detail below in conjunction with the embodiments and drawings, but the protection scope is not limited thereto.

[0021] As shown in Fig. Figure 1 The present application provides a horizontal direction changing loading model test device for offshore wind power foundation, which comprises a water tank 1 and a test tank 2 connected to each other, a floating platform 3 arranged in the test tank 2, a wind power foundation model 4 installed on the upper end of the floating platform 3, a simulated sea wave mechanism 6 arranged in the water tank 1, the simulated sea wave mechanism 6 comprising a first driving assembly and a push plate 606, the first driving assembly driving the push plate 606 to reciprocally slide, a simulated sea wind mechanism 7 arranged outside the water tank 1, the simulated sea wind mechanism 7 comprising a nozzle 709 and an air cylinder 706 connected to each other, the nozzle 709 facing the side of the wind power foundation model 4, and the air cylinder 706 comprising a reciprocally sliding piston 705 arranged therein by a second driving assembly, a linkage mechanism 8 arranged between the sea wave simulation mechanism and the sea wind simulation mechanism, the linkage mechanism 8 comprising a first connecting column 801 and a second connecting column 809, the first connecting column 801 and the second connecting column 809 being connected to the first driving assembly and the second driving assembly respectively, and a linkage block 806 being slidably arranged between the first connecting column 801 and the second connecting column 809, the first driving assembly and the second driving assembly acting synchronously when the linkage block 806 is clamped with the first connecting column 801 and the second connecting column 809 at the same time, and the first driving assembly and the second driving assembly acting independently when the linkage block 806 is clamped with only the first connecting column 801.

[0022] The water tank 1 and the test tank 2 are both square box structures with open upper ends, and the test tank 2 is located at the front side of the water tank 1. The test water is contained in the water tank 1. A water passing groove is arranged at the upper end of the side wall of the water tank 1 opposite to the test tank 2, and the inside of the water tank 1 and the inside of the test tank 2 are communicated through the two water passing grooves. The test water in the water tank 1 enters into the test tank 2 through the water passing groove, so that the floating platform 3 floats on the water surface, and the wind power foundation model 4 is provided with an approximate real floating environment. A display 5 is fixedly arranged on the outer wall of the test tank 2. A plurality of sensors required for tests are installed in the wind power foundation model 4, and the sensors are electrically connected with the display 5. The plurality of sensors can sense the displacement, stress, strain and other state changes of the wind power foundation model 4 under the impact of sea waves in real time, and transmit the collected data in the form of electrical signals to the display 5 outside the test tank 2 through wires for display.

[0023] The first driving assembly comprises a motor, a fixed seat 601, a reciprocating screw rod 602, a guide rod 603, a threaded block 604 and a sliding block 605.

[0024] A group of fixed seats 601 are fixedly arranged on the inner walls of the left and right sides of the water tank 1, and each group comprises two front and rear symmetrical fixed seats 601. A front and rear horizontal reciprocating screw rod 602 is rotatably arranged in one of the fixed seats 601, and a front and rear horizontal guide rod 603 is rotatably arranged in the other fixed seat 601. A threaded block 604 is screwed on the outer side of the reciprocating screw rod 602, and a sliding block 605 is slidingly sleeved on the outer side of the guide rod 603. The threaded block 604 and the sliding block 605 are arranged symmetrically left and right. The push plate 606 extends along the horizontal direction, and the left and right ends of the push plate 606 are fixedly connected with the threaded block 604 and the sliding block 605 respectively. The push plate 606 is kept inclined at a specific angle with the bottom of the water tank 1, and the angle can efficiently transfer kinetic energy to the water body during movement, so as to make the water body form a wave shape. A motor is also fixedly arranged on the inner wall of the water tank 1, and the output shaft of the motor is fixedly connected with the end of the reciprocating screw rod 602.

[0025] The reciprocating screw rod 602 is driven by the motor to rotate, and the threaded block 604 on the outer side of the reciprocating screw rod 602 reciprocates along the front and rear direction, and the push plate 606 is driven by the threaded block 604 to reciprocate along the guide rod 603, so that the simulated sea waves appear in the test tank 2. The sea waves surge into the test tank 2 through the water passing groove and hit the floating platform 3 and the wind power foundation model 4. The floating platform 3 floats on the water surface in the test tank 2, and the sensors on the floating platform 3 can sense the state changes of the wind power foundation model 4 and transmit the data to the display 5 for display. The rotating speed of the motor can be adjusted by the controller, so as to change the rotating speed of the reciprocating screw rod 602, and further adjust the frequency and height of the simulated sea waves.

[0026] The nozzle 709 is fixedly arranged on the front upper end of the water tank 1 by a support, and the spraying direction of the nozzle 709 is towards the front side of the wind power foundation model 4. The shape and gas outlet direction of the nozzle 709 are optimized and designed, so that the blown air flow is more concentrated and the action of the sea wind on the wind power foundation model 4 is more accurately simulated. The air cylinder 706 is fixedly arranged on the outer wall of the water tank 1, the air cylinder 706 is a horizontally arranged cylindrical structure, the side wall of the air cylinder 706 is provided with an air inlet 707, the front end of the air cylinder 706 is connected with the nozzle 709 through an air outlet pipe 708, and the air inlet 707 and the air outlet pipe 708 are both provided with a one-way valve. The one-way valve adopts a special valve structure, which ensures the one-way flow of the gas and prevents the backflow of the gas, so as to ensure the stable output of the simulated sea wind. The air cylinder 706 is made of high-strength and corrosion-resistant material, which ensures the stability during long-term use. The cylindrical piston 705 is slidingly arranged in the air cylinder 706, and the outer wall of the piston 705 is in sliding contact with the inner wall of the air cylinder 706.

[0027] The second driving assembly comprises a sleeve rod 701, a cross frame 702, a rotating disc 703 and a lever 704.

[0028] Two front and rear symmetrical sleeve rods 701 are fixedly arranged on the outer wall of the water tank 1 at the rear side of the air cylinder 706, and the cross frame 702 is slidingly arranged between the two sleeve rods 701. The cross frame 702 is located in the plane in the front and rear directions, and comprises a front rod, a rear rod and a square frame. The front rod and the rear rod are both horizontally arranged along the front and rear directions, and are fixedly arranged at the front middle part and the rear middle part of the square frame respectively. The front rod and the rear rod are slidingly inserted into the two sleeve rods 701 respectively. A circular rotating disc 703 is rotatably arranged on the outer wall of the water tank 1 between the two sleeve rods 701, and the rotating disc 703 is located in the plane in the front and rear directions. A lever 704 is fixedly arranged at the outer edge of the rotating disc 703 and is perpendicular to the rotating disc 703, and the lever 704 is slidingly inserted into the square frame of the cross frame 702. The front end of the front rod of the cross frame 702 is inserted into the rear end of the air cylinder 706 and is fixedly connected with the piston 705. In order to facilitate the force exertion of the operator, the surface of the rear rod of the cross frame 702 is designed with anti-skid lines.

[0029] The operator can manually push and pull the cross frame 702. For convenient operation, the cross frame 702 is designed with anti-skid lines on the surface to ensure that the hands are not easy to slip when applying force. In the process of pushing and pulling the cross frame 702, the piston 705 fixedly connected thereto will move linearly reciprocatingly in the interior of the air cylinder 706. When the piston 705 moves to the interior of the air cylinder 706, the space in the interior of the air cylinder 706 decreases, the pressure increases, the one-way valve in the interior of the air inlet 707 is closed to prevent gas backflow, and the one-way valve in the interior of the air outlet pipe 708 is opened, so that the air in the interior of the air cylinder 706 is delivered to the nozzle 709 through the air outlet pipe 708 and blown out. When the piston 705 moves to the exterior of the air cylinder 706, the space in the interior of the air cylinder 706 increases, the pressure decreases, the one-way valve in the interior of the air outlet pipe 708 is closed, and the one-way valve in the interior of the air inlet 707 is opened, so that air enters the interior of the air cylinder 706 from the air inlet 707. Such a cycle realizes directional flow of air and blowing out of the nozzle 709 to simulate sea wind. According to different sizes of force applied by the operator when pushing and pulling the cross frame 702, the moving speed and stroke of the piston 705 in the air cylinder 706 will be different, thereby controlling the compression degree and discharge amount of air in the air cylinder 706 to simulate the influence of sea wind of different intensities on the wind power foundation model 4. In this way, the stability and bearing capacity of the wind power foundation model 4 under different sea wind intensities can be studied.

[0030] The linkage assembly further comprises a movable column 805, a clamping bead 807, and a bevel gear 808.

[0031] The first connecting column 801 is rotatably inserted into the outer wall of the water tank 1. One end of the first connecting column 801 located in the interior of the water tank 1 is fixedly provided with a bevel gear 808, and the rear end of the reciprocating lead screw 602 is also fixedly provided with a bevel gear 808. The two bevel gears 808 are in meshing engagement. The modulus and the number of teeth of the two bevel gears 808 are matched with each other, so as to ensure that power can be stably and efficiently transmitted from the reciprocating lead screw 602 to the first connecting column 801 in the transmission process. The second connecting column 809 is fixedly provided at the center of the end face of the rotating disc 703 close to the water tank 1. The second connecting column 809 is coincident with the axis of the rotating disc 703, and the second connecting column 809 is coincident with the axis of the first connecting column 801. A cylindrical movable groove 802 is arranged at the center of one end of the first connecting column 801 located outside the water tank 1 and at the center of one end of the second connecting column 809 away from the rotating disc 703. Two symmetrical notched grooves 803 are arranged on the side wall of the movable groove 802, and a clamping groove 804 is arranged on the inner wall of each notched groove 803. The depth of the notched groove 803 on the first connecting column 801 is greater than the depth of the notched groove 803 on the second connecting column 809.

[0032] The same movable column 805 is slidingly inserted into the movable slot 802 of the first connecting column 801 and the movable slot 802 of the second connecting column 809, and the movable column 805 has a small friction coefficient with the inner wall of the movable slot 802 when sliding in the movable slot 802 of the first connecting column 801 and the second connecting column 809, which can be realized by smearing lubricating oil on the contact surface. Two symmetrical linkage blocks 806 are fixedly arranged on the outer wall of the middle section of the movable column 805, and the linkage block 806 has a firm and durable structure and can withstand a large force generated in the transmission process. One clamping bead 807 is fixedly arranged on each side of each linkage block 806. Each linkage block 806 is slidingly clamped in the notch slot 803 on the same side of the first connecting column 801 and the second connecting column 809, and the clamping bead 807 on the linkage block 806 is selectively clamped in the clamping groove 804 of the notch slot 803 of the first connecting column 801 or the second connecting column 809. When the device is normally running, the clamping bead 807 will not accidentally come off the clamping groove 804, ensuring the stability and reliability of the simulated sea wave and simulated sea wind mechanism 7 when running synchronously.

[0033] In the process of simulating sea waves, when the reciprocating wire rod 602 rotates, the transmission force of the reciprocating wire rod 602 is transmitted to the first connecting column 801 through the two bevel gears 808 due to the meshing of the two bevel gears 808, and the two bevel gears 808 are fixedly connected to one end of the first connecting column 801 and the rear end of the reciprocating wire rod 602, respectively.

[0034] When the sea wave and sea wind simulation needs to be performed synchronously, the linkage block 806 is actuated so that the clamping bead 807 on the linkage block 806 is clamped in the clamping groove 804 of the notch slot 803 of the second connecting column 809. At this time, one end of the linkage block 806 enters the notch slot 803 of the first connecting column 801, and the other end of the linkage block 806 enters the notch slot 803 of the second connecting column 809. When the first connecting column 801 rotates, it can drive the second connecting column 809 to rotate through the linkage block 806, and the second connecting column 809 drives the rotating disc 703 fixedly connected thereto to rotate, and the actuating rod 704 on the outside of the rotating disc 703 rotates, thereby actuating the cross frame 702 to move reciprocally, so that the piston 705 moves reciprocally in the air cylinder 706, and the synchronous sea wind simulation is realized. Since the rotation speed of the reciprocating wire rod 602 directly affects the strength of the sea wave generated by the push plate 606 pushing the water, and at the same time drives the rotating disc 703 to rotate through the bevel gears 808 and the connecting column, thereby affecting the frequency and intensity of the actuating rod 704 actuating the cross frame 702, ultimately making the strength between the simulated sea wave and the simulated sea wind positively correlated, which is closer to the actual wind wave effect in the marine environment.

[0035] When the sea wave and sea wind simulation are not required to be synchronized, the linkage block 806 is pulled so that the clamping beads 807 on the linkage block 806 are clamped in the clamping grooves 804 of the notch grooves 803 of the first connecting column 801, the linkage block 806 is completely entered into the notch grooves 803 of the first connecting column 801, and the linkage block 806 is not entered into the notch grooves 803 of the second connecting column 809, at this time, the first connecting column 801 cannot drive the second connecting column 809 to rotate through the linkage block 806 when rotating, so that the first driving assembly and the second driving assembly independently act, the first connecting column 801 and the second connecting column 809 restore the rotary connection relationship, and cannot be rotated synchronously, so that the simulated sea wave and the simulated sea wind can independently operate, and diversified test requirements can be met.

[0036] The working principle of the application is as follows: Firstly, the motor is started to drive the reciprocating screw rod 602 to rotate, and then the threaded block 604 drives the push plate 606 to move, the inclined push plate 606 pushes the water in the water tank 1, the simulated sea wave hits the floating platform 3 and the wind power foundation model 4 through the water tank, and the floating platform 3 floats on the water surface in the test tank 2, so that the sensors in the floating platform 3 and the wind power foundation model 4 can sense the state change of the wind power foundation model 4 and transmit data to the display 5 for display. The working personnel can intuitively understand the stress condition and operating state of the wind power foundation model 4 in the simulated sea wave environment by observing the data on the display 5, thereby providing a basis for subsequent data analysis and structure optimization.

[0037] The cross frame 702 can be manually pushed and pulled to move, so that the piston 705 can reciprocate in the air cylinder 706, air enters the inside of the air cylinder 706 from the air inlet 707, and then is delivered to the nozzle 709 through the air outlet pipe 708 to be blown out, so that the influence of the sea wind on the wind power foundation model 4 can be simulated, and different intensity of the sea wind can be simulated according to different forces applied by the working personnel; in addition, the linkage block 806 is pushed to move from the notch groove 803 on the deeper first connecting column 801 to the inside of the notch groove 803 on the shallower second connecting column 809, at this time, the linkage block 806 is clamped in the two notch grooves 803, so that when the sea wave is simulated, the transmission of the reciprocating screw rod 602 can be transmitted to the first connecting column 801 and the second connecting column 809 through the two bevel gears 808, so that the second connecting column 809 drives the rotating disc 703 to rotate, so that the lever 704 can drive the cross frame 702 to reciprocate, at this time, the sea wind simulation is also synchronized, and the intensity between the two is positively correlated, which is more in line with the actual wind wave effect, when the two are not required to be synchronized, the linkage block 806 is moved into the notch groove 803 of the deeper first connecting column 801, and the two connecting columns become a rotary connection relationship, and cannot be rotated synchronously.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A horizontal directional loading model test device for offshore wind power foundations, characterized by: The invention comprises a water tank (1) and a test box (2) connected to each other, a floating platform (3) is provided inside the test box (2), a wind power foundation model (4) is installed on the upper end of the floating platform (3), a simulated sea wave mechanism (6) is provided inside the water tank (1), the simulated sea wave mechanism (6) comprises a first drive component and a push plate (606), and the first drive component drives the push plate (606) to slide back and forth; a simulated sea breeze mechanism (7) is provided outside the water tank (1), the simulated sea breeze mechanism (7) comprises a nozzle (709) and an air cylinder (706) that are connected to each other, the nozzle (709) faces one side of the wind power foundation model (4), and a piston (705) that slides back and forth is provided inside the air cylinder (706) through the second drive component; A linkage mechanism (8) is provided between the wave simulation mechanism and the sea breeze simulation mechanism, and the linkage mechanism (8) includes a first connecting column (801) and a second connecting column (809), the first connecting column (801) and the second connecting column (809) are connected to the first drive component and the second drive component respectively, and a linkage block (806) is slidably provided between the first connecting column (801) and the second connecting column (809), when the linkage block (806) is simultaneously engaged with the first connecting column (801) and the second connecting column (809), the first drive component and the second drive component act synchronously, and when the linkage block (806) is only engaged with the first connecting column (801), the first drive component and the second drive component act independently.

2. The offshore wind power foundation horizontal variable direction loading model test device according to claim 1, characterized in that: The test box (2) is located at the front side of the water tank (1), and test water is contained in the water tank (1). A water trough is provided at the upper end of the side wall of the water tank (1) and the test box (2) that are opposite to each other, and the interior of the water tank (1) and the interior of the test box (2) are connected through the two water troughs; a display (5) is fixedly provided on the outer wall of the test box (2), and various sensors required for the test are installed in the wind power foundation model (4), and the sensors are electrically connected to the display (5).

3. The offshore wind power foundation horizontal variable direction loading model test device according to claim 1, characterized in that: The first driving assembly comprises a motor, a fixed seat (601), a reciprocating screw (602), a guide rod (603), a threaded block (604), and a slider (605); a group of fixed seats (601) are fixedly arranged on the left and right inner walls of the water tank (1); a reciprocating screw (602) is rotatably arranged inside one group of fixed seats (601), and a guide rod (603) is rotatably arranged inside the other group of fixed seats (601); a threaded block (604) is screwed on the outside of the reciprocating screw (602), and a slider (605) is slidably sleeved on the outside of the guide rod (603); the left and right ends of the push plate (606) are fixedly connected to the threaded block (604) and the slider (605), respectively; the push plate (606) is kept tilted, and a motor is also fixedly arranged on the inner wall of the water tank (1), and the output shaft of the motor is fixedly connected to the end of the reciprocating screw (602).

4. The offshore wind power foundation horizontal variable direction loading model test device according to claim 3, characterized in that: The nozzle (709) is fixedly arranged at the upper end of the front side of the water tank (1) via a bracket, and the air cylinder (706) is fixedly arranged on the outer wall of the water tank (1). An air inlet (707) is provided on the side wall of the air cylinder (706), and the front end of the air cylinder (706) is connected to the nozzle (709) via an air outlet pipe (708). Both the air inlet (707) and the air outlet pipe (708) are provided with a one-way valve.

5. The offshore wind power foundation horizontal variable direction loading model test device according to claim 4, characterized in that: The second driving assembly comprises a sleeve rod (701), a cross frame (702), a turntable (703), and a shifting rod (704); two sleeve rods (701) are fixedly provided on the outer wall of the water tank (1) at the rear side of the air cylinder (706), and a cross frame (702) is slidably provided between the two sleeve rods (701); a turntable (703) is rotatably provided on the outer wall of the water tank (1) between the two sleeve rods (701), and a shifting rod (704) is fixedly provided at the outer edge of the turntable (703); the shifting rod (704) is slidably inserted into the interior of the cross frame (702); the front end of the cross frame (702) is inserted from the rear end of the air cylinder (706) and is fixedly connected to the piston (705).

6. The offshore wind power foundation horizontal variable direction loading model test device according to claim 5, characterized in that: The cross frame (702) includes a front rod, a rear rod, and a square frame. The front rod and the rear rod are both arranged horizontally along the front-back direction. The front rod and the rear rod are respectively fixedly arranged at the middle of the front end and the middle of the rear end of the square frame. The front rod and the rear rod are respectively slidably inserted into the inside of the two sleeve rods (701). The front end of the front rod extends into the rear end of the air cylinder (706). The shift rod (704) is slidably inserted into the inside of the square frame.

7. The offshore wind power foundation horizontal variable direction loading model test device according to claim 5, characterized in that: The linkage assembly further includes a bevel gear (808); the first connecting column (801) is rotatably plugged into the outer wall of the water tank (1); a bevel gear (808) is fixedly provided at one end of the first connecting column (801) located inside the water tank (1); a bevel gear (808) is also fixedly provided at the rear end of the reciprocating screw (602); the two bevel gears (808) are meshed; the second connecting column (809) is fixedly provided at the center of the end face of one side of the turntable (703) close to the water tank (1); the first connecting column (80 1) A cylindrical movable groove (802) is provided at the center of one end outside the water tank (1) and at the center of one end of the second connecting column (809) away from the turntable (703), two symmetrical notched grooves (803) are provided on the side wall of the movable groove (802), and a clamping groove (804) is provided on the inner wall on both sides of each notched groove (803); wherein the depth of the notched groove (803) on the first connecting column (801) is greater than the depth of the notched groove (803) on the second connecting column (809).

8. The offshore wind power foundation horizontal variable direction loading model test device according to claim 7, characterized in that: The same movable column (805) is slidably inserted into the movable groove (802) of the first connecting column (801) and the movable groove (802) of the second connecting column (809), and two linkage blocks (806) are fixedly provided on the outer wall of the middle section of the movable column (805), and a clamping bead (807) is fixedly provided on both sides of each linkage block (806); each linkage block (806) is slidably clamped into the inside of the notch groove (803) on the same side of the first connecting column (801) and the second connecting column (809), and the clamping bead (807) on the linkage block (806) is selectively clamped into the inside of the clamping groove (804) of the notch groove (803) of the first connecting column (801) or the second connecting column (809).

9. The offshore wind power foundation horizontal variable direction loading model test device according to claim 8, characterized in that: When the card bead (807) on the linkage block (806) is engaged with the inside of the card slot (804) of the notch slot (803) of the second connecting column (809), one end of the linkage block (806) enters the inside of the notch slot (803) of the first connecting column (801), and the other end of the linkage block (806) enters the inside of the notch slot (803) of the second connecting column (809). When the first connecting column (801) rotates, the second connecting column (809) can be driven to rotate through the linkage block (806), and the first drive component and the second drive component act synchronously.

10. The offshore wind power foundation horizontal variable direction loading model test device according to claim 8, characterized in that: When the card bead (807) on the linkage block (806) is engaged with the inside of the card slot (804) of the notch slot (803) of the first connecting column (801), the linkage block (806) completely enters the inside of the notch slot (803) of the first connecting column (801), and the linkage block (806) does not enter the inside of the notch slot (803) of the second connecting column (809). When the first connecting column (801) rotates, the linkage block (806) cannot drive the second connecting column (809) to rotate, and the first drive component and the second drive component operate independently.

Images