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

Abstract

The utility model relates to the technical field of offshore wind power foundation models, in particular to an offshore wind power foundation horizontal turning loading model test device, which comprises a model box, a positioning plate with a through hole in the middle is arranged on the model box, sea sand is arranged in the model box, a loading rod is arranged at the center of the through hole, and the loading rod is connected with the positioning plate. The loading rod penetrates into sea sand through the foundation; a horizontal load is applied to the loading rod by a loading assembly, and the loading assembly comprises a first steel strand; one end of the first steel strand is connected with the loading rod, and the other end of the first steel strand is connected with a loading device; according to the utility model, the quantitative change of the load direction can be realized when the bearing capacity of the offshore wind power foundation is measured, so that the test condition better conforms to the actual working environment of the offshore wind power foundation.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore wind power foundation models, in particular to an offshore wind power foundation horizontal variable direction loading model test device. Background Art

[0002] There are various forms of offshore wind power foundations, but the main loads they are subject to are the horizontal loads and overturning moments caused by offshore wind and wave loads. At present, most studies on the bearing performance of offshore wind power foundations assume that the direction of the loads the foundation is subject to is fixed during its service life. However, according to the processing of marine meteorological data, it is found that the direction of offshore wind and waves is not fixed. For example, in typhoon weather, the direction of wind and waves can change 180° in a short period of time. Therefore, assuming that the direction of the load on the foundation remains unchanged has certain limitations for the study of offshore wind power foundations. Variable-direction horizontal loading is more in line with the actual working conditions of offshore wind power foundations. Applying variable-direction horizontal loads to the foundation can better study the horizontal bearing characteristics of offshore wind power foundations. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a horizontal directional loading model test device for an offshore wind power foundation.

[0004] The utility model is implemented by the following technical scheme: a horizontal reversing loading model test device for an offshore wind power foundation, comprising a model box, a positioning plate with a through hole in the middle of the model box, sea sand and water in the model box, and the water surface is higher than the sea sand surface, a loading rod is arranged at the center of the through hole, the bottom of the loading rod is connected to the offshore wind power foundation model and penetrates into the sea sand; the loading rod is applied with a horizontal load by a loading assembly, and the loading assembly comprises a first steel strand; one end of the first steel strand is connected to the loading rod, and the other end is connected to a loading device.

[0005] Preferably, vertical poles are fixed around the top of the model box, horizontal poles are connected between the vertical poles, two positioning poles are connected between the left and right horizontal poles, and the positioning plate is connected between the two positioning poles.

[0006] Preferably, first guide blocks are fixed at both ends of the crossbar, and the first guide blocks penetrate the outer side of the vertical pole and extend into the vertical pole; a first electric push rod is installed at the bottom of the vertical pole, and the push rod end of the first electric push rod is fixedly connected to the first guide block;

[0007] The two ends of the positioning rod are fixed with second guide blocks, which penetrate the outer side of the cross bar and extend into the cross bar; a second electric push rod is installed on one side of the cross bar, and the push rod end of the second electric push rod is fixedly connected to the second guide block close to one side of the second electric push rod;

[0008] A third guide block is fixed on both the front and rear sides of the positioning plate, and the third guide block penetrates the outer side of the positioning rod and extends into the positioning rod; a third electric push rod is installed on one side of the positioning rod, and the push rod end of the third electric push rod is fixedly connected to the third guide block.

[0009] Preferably, a semicircular opening is provided at the top of the positioning plate, a slide is provided in the semicircular opening, and the slide is driven by a driving assembly; the top of the slide passes through the semicircular opening and is provided with a first pulley, and a second pulley is provided on the right crossbar;

[0010] The loading rod is connected to a rotating plate via a first bearing, the rotating plate has a wire binding hole, and the wire binding hole is connected to a first steel strand; the other end of the first steel strand passes around a first pulley and a second pulley, and is finally connected to the loading device via a force sensor;

[0011] A third pulley is provided on the left cross bar, and a wire displacement meter is fixed on the rear cross bar via a sleeve; a positioning hole is provided on the inner bearing of the first bearing, a second steel strand is connected in the positioning hole, and the other end of the second steel strand is passed around the third pulley and connected to the wire displacement meter.

[0012] Preferably, the driving assembly includes a large gear arranged at the bottom of the positioning plate via a second bearing, and the bottom of the slide is fixedly connected to the large gear; an L-shaped plate is fixed to one side of the positioning plate, a motor is installed on the horizontal plate of the L-shaped plate, and a small gear meshing with the large gear is sleeved on the output shaft of the motor.

[0013] Preferably, the positioning plate has arc-shaped angle scales.

[0014] Preferably, the first bearing is fixed to the loading rod via bolts, and the loading rod is longitudinally provided with a plurality of threaded holes for screwing the bolts.

[0015] Preferably, a control console is provided on one side of the model box, and the control console has a display screen and buttons.

[0016] Beneficial effects of the utility model:

[0017] (1) The utility model provides an embodiment, wherein a horizontal load can be applied to a loading rod through a loading assembly, thereby simulating the horizontal force condition at sea; a sliding plate can be driven to slide through a driving assembly, thereby adjusting the force position of the loading rod; and a pull-wire displacement meter can detect the horizontal displacement of the loading rod.

[0018] (2) In one embodiment of the present invention, the positioning plate has an arc-shaped angle scale to facilitate adjustment of the loading direction.

[0019] (3) In one embodiment of the present invention, the first bearing is fixed to the loading rod by bolts, and a plurality of threaded holes for screwing the bolts are longitudinally provided on the loading rod, so that the height of the first bearing can be adjusted to facilitate tests at different heights.

[0020] The utility model can realize quantitative change of load direction when measuring the bearing capacity of offshore wind power foundation, so that the test conditions are more in line with the actual working environment of offshore wind power foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0022] Figure 2 It is a top view schematic diagram of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the positioning plate.

[0024] Figure 4 Schematic diagram of the top view of the positioning plate.

[0025] Figure 5 It is a structural diagram of the wire binding hole.

[0026] Figure 6 It is a structural diagram of the drive component.

[0027] Figure 7 This is the internal structure diagram of the pole.

[0028] Figure 8 This is the internal structure diagram of the cross bar and the positioning rod. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings.

[0030] See also Figures 1 to 6The utility model provides an embodiment: a horizontal reversing loading model test device for an offshore wind power foundation, comprising a model box 21, a positioning plate 6 having a through hole in the middle of the model box 21, the through hole being used for a loading rod 18 to pass through, sea sand and water being contained in the model box 21, and the water surface being higher than the sea sand surface, for simulating the seabed environment, a loading rod 18 being provided at the center of the through hole, the bottom of the loading rod 18 being connected to an offshore wind power foundation model (not shown) and penetrating into the sea sand; a horizontal load is applied to the loading rod 18 by a loading assembly, and a horizontal load can be applied to the loading rod 18 by the loading assembly, so as to simulate the horizontal stress condition at sea; the loading assembly comprises a first steel strand; one end of the first steel strand is connected to the loading rod 18, and the other end is connected to a loading device 23, the loading device 23 can be a servo loader, but is not limited thereto, a load can be applied to the first steel strand by the loading device 23, so that a load can be applied to the loading rod 18 and the foundation, so as to simulate the horizontal stress condition of the foundation at sea.

[0031] Vertical poles 2 are fixed around the top of the model box 21 for installing cross bars 1. Cross bars 1 are connected between the vertical poles 2 for installing positioning rods 27, and two positioning rods 27 are connected between the left and right cross bars 1 for installing positioning plates 6, and the positioning plates 6 are connected between the two positioning rods 27.

[0032] A semicircular opening 7 is provided on the top of the positioning plate 6 for sliding of the slide plate 9. The slide plate 9 is provided in the semicircular opening 7. The slide plate 9 is driven by a driving component. The driving component can drive the slide plate 9 to slide, so as to adjust the force position of the loading rod 18. The top of the slide plate 9 passes through the semicircular opening 7 and is provided with a first pulley 11. The right cross bar 1 is provided with a second pulley 12.

[0033] The loading rod 18 is connected to a rotating plate via a first bearing 13, and the rotating plate has a wire binding hole 17 for connecting a first steel strand, and the first steel strand is connected to the wire binding hole 17; the other end of the first steel strand passes around the first pulley 11 and the second pulley 12, and is finally connected to the loading device 23 via a force sensor 26, and the force sensor 26 is used to detect the load acting on the loading rod 18;

[0034] A third pulley 10 is provided on the left side cross bar 1, and a wire displacement meter 20 is fixed on the rear side cross bar 1 through a sleeve 19. The wire displacement meter 20 can detect the horizontal displacement at the loading point acting on the loading rod 18; a positioning hole 15 is provided on the inner bearing 14 of the first bearing 13 for connecting the second steel strand, and the second steel strand is connected in the positioning hole 15. The other end of the second steel strand passes around the third pulley 10 and is connected to the wire displacement meter 20.

[0035] The driving assembly includes a large gear 32 arranged at the bottom of the positioning plate 6 via a second bearing 31, and the bottom of the slide 9 is fixedly connected to the large gear 32, so that when the large gear 32 rotates, it can drive the slide 9 to slide; an L-shaped plate 33 is fixed to one side of the positioning plate 6 for installing a motor 34, and a motor 34 is installed on the transverse plate of the L-shaped plate 33. The motor 34 can drive the small gear 35 to rotate, thereby driving the large gear 32 to rotate, and then driving the slide 9 to slide. The output shaft of the motor 34 is sleeved with a small gear 35 meshing with the large gear 32, so that when the small gear 35 rotates, it can drive the large gear 32 to rotate.

[0036] This embodiment has the following working principle: the small gear 35 is driven to rotate by the motor 34, thereby driving the slide 9 on the large gear 32 to slide, and the sliding of the slide 9 can drive the rotating plate to rotate, thereby driving the wire binding hole 17 to rotate, thereby changing the position of the first steel strand, so that loads can be applied to different horizontal positions of the loading rod 18; after the position of the rotating plate is adjusted, the first steel strand is tightened by the loading device 23 to apply a load to the rotating plate, thereby applying a load to the loading rod 18, and then the horizontal displacement of the loading rod 18 is detected by the wire displacement meter 20.

[0037] Please continue reading Figures 7 and 8 In one embodiment of the utility model, first guide blocks 41 are fixed at both ends of the cross bar 1, and the first guide blocks 41 penetrate the outer side of the vertical pole 2 and extend into the vertical pole 2; a first electric push rod 42 is installed at the bottom of the vertical pole 2, and the first guide block 41 can be driven to move up and down by the first electric push rod 42, thereby driving the cross bar 1 to move up and down, so that the positioning rod 27 and the positioning plate 6 can be driven to move up and down, so as to cooperate with tests at different heights; the push rod end of the first electric push rod 42 is fixedly connected to the first guide block 41;

[0038] The two ends of the positioning rod 27 are fixed with second guide blocks 43, which penetrate the outer side of the cross bar 1 and extend into the cross bar 1; a second electric push rod 44 is installed on one side of the cross bar 1, and the second guide block 43 can be driven to move forward and backward by the second electric push rod 44, thereby driving the positioning rod 27 and the positioning plate 6 to move forward and backward, so that the position of the positioning plate 6 can be adjusted so that the loading rod 18 is located at the center of the positioning plate 6, which is convenient for subsequent tests; the push rod end of the second electric push rod 44 is fixedly connected to the second guide block 43 close to one side of the second electric push rod 44;

[0039] A third guide block 45 is fixed on both the front and rear sides of the positioning plate 6, and the third guide block 45 penetrates the outer side surface of the positioning rod 27 and extends into the positioning rod 27; a third electric push rod 46 is installed on one side of the positioning rod 27, and the third guide block 45 can be driven to move left and right by the third electric push rod 46, thereby driving the positioning plate 6 to move left and right, so that the position of the positioning plate 6 can be adjusted so that the loading rod 18 is located at the center of the positioning plate 6; the push rod end of the third electric push rod 46 is fixedly connected to the third guide block 45.

[0040] In an embodiment of the utility model, the positioning plate 6 has an arc-shaped angle scale 8 to facilitate the adjustment of the loading direction.

[0041] In one embodiment of the utility model, the first bearing 13 is fixed to the loading rod 18 by bolts 16. The loading rod 18 is longitudinally provided with a plurality of threaded holes for screwing the bolts 16, so that the height of the first bearing 13 can be adjusted to facilitate tests at different heights.

[0042] In an embodiment of the utility model, a control console 22 is provided on one side of the model box 21 to control various components. The loading device 23 is installed in the control console 22 . The control console 22 has a display screen 24 and buttons 25 .

[0043] The loading device, force sensor, electric push rod, motor, control console, and wire displacement meter in the utility model are all prior arts, which are already clearly understood by those skilled in the art and will not be described in detail herein. The utility model protects the structural features of a horizontal reversing loading model test device for an offshore wind power foundation.

[0044] The above description is only a preferred embodiment of the present utility model and cannot be understood as a limitation of the present application. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the present utility model.

Claims

1. A horizontal directional loading model test device for offshore wind power foundation, characterized in that: The invention comprises a model box, a positioning plate with a through hole in the middle is arranged on the model box, sea sand and water are contained in the model box, and the water surface is higher than the sea sand surface; a loading rod is arranged at the center of the through hole, and the bottom of the loading rod is connected to the offshore wind power foundation model and penetrates into the sea sand; a loading rod is applied with a horizontal load by a loading assembly, and the loading assembly comprises a first steel strand; one end of the first steel strand is connected to the loading rod, and the other end is connected to a loading device; Vertical poles are fixed around the top of the model box, and a cross bar is connected between the vertical poles. Two positioning poles are connected between the left and right cross bars, and the positioning plate is connected between the two positioning poles.

2. According to claim 1, a horizontal reversing loading model test device for offshore wind power foundation, characterized in that: Both ends of the crossbar are fixed with first guide blocks, which penetrate the outer side of the vertical pole and extend into the vertical pole; a first electric push rod is installed at the bottom of the vertical pole, and the push rod end of the first electric push rod is fixedly connected to the first guide block; A second guide block is fixed at both ends of the positioning rod, and the second guide block penetrates the outer side of the cross bar and extends into the cross bar; a second electric push rod is installed on one side of the cross bar, and the push rod end of the second electric push rod is fixedly connected to the second guide block close to one side of the second electric push rod; A third guide block is fixed on both the front and rear sides of the positioning plate, and the third guide block penetrates the outer side of the positioning rod and extends into the positioning rod; a third electric push rod is installed on one side of the positioning rod, and the push rod end of the third electric push rod is fixedly connected to the third guide block.

3. The offshore wind power foundation horizontal reversing loading model test device according to claim 1 is characterized by: A semicircular opening is provided on the top of the positioning plate, a slide is provided in the semicircular opening, and the slide is driven by a driving assembly; a first pulley is provided on the top of the slide passing through the semicircular opening, and a second pulley is provided on the right crossbar; The loading rod is connected to a rotating plate via a first bearing, the rotating plate has a wire binding hole, and the wire binding hole is connected to a first steel strand; the other end of the first steel strand passes around a first pulley and a second pulley, and is finally connected to the loading device via a force sensor; A third pulley is provided on the left cross bar, and a wire displacement meter is fixed on the rear cross bar via a sleeve; a positioning hole is provided on the inner bearing of the first bearing, a second steel strand is connected in the positioning hole, and the other end of the second steel strand is passed around the third pulley and connected to the wire displacement meter.

4. The offshore wind power foundation horizontal reversing loading model test device according to claim 3 is characterized by: The driving assembly includes a large gear arranged at the bottom of the positioning plate via a second bearing, and the bottom of the slide is fixedly connected to the large gear; an L-shaped plate is fixed to one side of the positioning plate, a motor is installed on the horizontal plate of the L-shaped plate, and a small gear meshing with the large gear is sleeved on the output shaft of the motor.

5. The offshore wind power foundation horizontal reversing loading model test device according to claim 3 is characterized by: The positioning plate is provided with arc-shaped angle scales.

6. The offshore wind power foundation horizontal reversing loading model test device according to claim 3, characterized in that: The first bearing is fixed on the loading rod via bolts, and the loading rod is longitudinally provided with a plurality of threaded holes for screwing the bolts.

7. The offshore wind power foundation horizontal variable direction loading model test device according to claim 1, characterized in that: A control console is arranged on one side of the model box, and the control console has a display screen and buttons.

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