CN219497228U - Down-striking storm flow simulator - Google Patents

Abstract

The utility model discloses a down-stroke storm flow simulator, which belongs to the field of bridge wind engineering simulation equipment, wherein the height of a down-stroke storm flow generator is changed through the up-and-down movement of a gantry crane, the strength and the position of the influence of the down-stroke storm flow on a plane are changed, the down-stroke storm flow generator can be positioned at each position above a rotation test table through the movement along a suspension slide rail and the movement along a horizontal slide rail, compared with the down-stroke storm flow simulator with a movement path which can only be in a straight line direction, the down-stroke storm flow simulator can simulate the movement form of the down-stroke storm flow on the straight line and the curve of the plane, and realize the simulation of the full plane, multiple angles and multiple paths, and the simulation of the down-stroke storm flow on the wind field condition of coupling simulation of a water surface structure can be realized through a bottom pool.

Description

Down-striking storm flow simulator

Technical Field

The utility model belongs to the field of bridge wind engineering simulation equipment, and particularly relates to a down-stroke storm flow simulation device.

Background

In recent years, as global climate warms, wind disasters are more and more frequent, and downburst is taken as the storm with the greatest intensity in nature, so that great economic loss and casualties are caused. Meanwhile, since downburst occurs mostly in the middle and lower reaches of the Yangtze river and in the southeast coastal areas of China, which are areas with large-span bridges and structures with great construction demands, the problem of disaster prevention and reduction of structures under extreme winds is also gradually becoming a major concern in scientific research and engineering practice in recent years. Because the wind field structure of the downburst cannot be simulated in the conventional boundary layer wind tunnel, a special simulator needs to be built to reproduce the specific wind field of the extreme wind, the moving path of the existing extreme wind simulation system only moves linearly, the influence on ground structures can be simulated, and the characteristics of actual disasters cannot be fully restored.

Disclosure of Invention

In view of the above, the present utility model is directed to a down-stream simulation device for simulating down-stream disasters in a full-plane and multi-path manner.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model comprises a down-striking storm flow generator, a gantry crane, a rectangular frame seat and a rotation test bed, wherein the rectangular frame seat is horizontally arranged, the rotation test bed is rotatably arranged in the middle of the rectangular frame seat, two ends of the gantry crane are slidably arranged at two edges of the rectangular frame seat, a suspension sliding rail is arranged at the top of the gantry crane, the extending direction of the suspension sliding rail is perpendicular to the sliding direction of the gantry crane, and the down-striking storm flow generator is slidably arranged on the suspension sliding rail.

Further, the portal crane comprises two telescopic support columns and a cantilever beam, wherein two ends of the cantilever beam are fixedly connected with the top ends of the telescopic support columns, the suspension sliding rail is fixed below the cantilever beam, the telescopic support columns comprise upper columns and lower columns, the lower columns are hollow, electric cylinders are arranged in the lower columns, the upper columns slide in from the upper ends of the lower columns, and the output ends of the electric cylinders are fixed with the lower ends of the upper columns.

Further, the lower end of the lower column is provided with a supporting roller, two edges of the rectangular frame seat are provided with horizontal sliding rails, and the supporting roller is arranged on the horizontal sliding rails in a sliding manner.

Further, two support rods are obliquely fixed to two sides of the lower column, support rollers are arranged at the tail ends of the support rods, and the support rollers are arranged on the horizontal sliding rail in a rolling mode.

Further, a hanging roller is arranged at the top end of the down-striking storm flow generator, and the hanging roller is arranged on the hanging sliding rail in a rolling way.

Further, the middle part of the rectangular frame seat is fixedly provided with an annular guide rail, the rotation test bed is a disc-shaped base, and the outer edge of the rotation test bed is contacted with the inner edge of the annular guide rail.

Further, the rotation test stand is provided with a water tank

The utility model has the beneficial effects that:

the utility model changes the height of the lower storm flow generator by the up-down movement of the gantry crane, changes the strength and the position of the lower storm flow on the plane, can realize the positioning of each position above the rotation test table by the movement of the lower storm flow generator along the suspension slide rail and the movement along the horizontal slide rail, and can simulate the movement form of the lower storm flow on the straight line and the curve of the plane compared with a lower storm flow simulator with a movement path which can only be along the straight line direction.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objects and other advantages of the utility model may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.

Drawings

In order to make the objects, technical solutions and advantageous effects of the present utility model more clear, the present utility model provides the following drawings for description:

FIG. 1 is a schematic diagram of an embodiment of a device for simulating a downburst of an impact current;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is an enlarged schematic view of FIG. 1 at B;

FIG. 4 is a cross-sectional view of an embodiment of the present utility model at a telescoping support post;

the figures are marked as follows: 1. a down-stream generator; 11. hanging rollers; 2. a gantry crane; 21. a suspension rail; 22. a telescopic support column; 221. loading a column; 222. a lower column; 223. an electric cylinder; 224. supporting rollers; 23. a cantilever beam; 3. a rectangular frame base; 31. a horizontal slide rail; 32. an annular guide rail; 4. and rotating the test bed.

Detailed Description

As shown in fig. 1 to 4, the utility model discloses a down-striking storm simulation device, which comprises a down-striking storm generator 1, a gantry crane 2, a rectangular frame seat 3 and a rotation test stand 4, wherein the down-striking storm generator 1 generates downward blowing through a fan, which is the prior art and is not described in redundant ways; the rectangular frame seat 3 is horizontally arranged, the rotation test bed 4 is rotatably arranged in the middle of the rectangular frame seat 3, a water pool is arranged on the rotation test bed 4, two ends of the gantry crane 2 are slidably arranged at two edges of the rectangular frame seat 3, a suspension sliding rail 21 is arranged at the top of the gantry crane 2, the extending direction of the suspension sliding rail 21 is perpendicular to the sliding direction of the gantry crane 2, and the lower storm flow generator 1 is slidably arranged on the suspension sliding rail 21; the gantry crane 2 comprises two telescopic support columns 22 and a suspension beam 23, wherein two ends of the suspension beam 23 are fixedly connected with the top ends of the telescopic support columns 22, the suspension sliding rail 21 is fixed below the suspension beam 23, the telescopic support columns 22 comprise an upper column 221 and a lower column 222, the lower column 222 is hollow, an electric cylinder 223 is arranged in the lower column 222, the upper column 221 slides in from the upper end of the lower column 222, and the output end of the electric cylinder 223 is fixed with the lower end of the upper column 221; the lower end of the lower column 222 is provided with a supporting roller 224, two edges of the rectangular frame seat 3 are provided with horizontal sliding rails 31, and the supporting roller 224 is arranged on the horizontal sliding rails 31 in a sliding manner; two support rods are also obliquely fixed on two sides of the lower column 222, support rollers 224 are arranged at the tail ends of the support rods, and the support rollers 224 are arranged on the horizontal slide rail 31 in a rolling manner; the top end of the lower cursive current generator 1 is provided with a hanging roller 11, and the hanging roller 11 is arranged on the hanging sliding rail 21 in a rolling way; the middle part of the rectangular frame seat 3 is fixedly provided with an annular guide rail 32, the rotation test stand 4 is a disc-shaped base, and the outer edge of the rotation test stand 4 is contacted with the inner edge of the annular guide rail 32.

In this scheme, through the height of the downhill flow generator 1 of the vertical movement change of gantry crane 2, change the intensity and the position that downhill flow influences the plane, through the removal of downhill flow generator 1 along suspension slide rail 21 and along horizontal slide rail 31, can realize the location in each position above rotation test bench 4, compare in the downhill flow analogue means of the straight line direction of movement path only can be followed, this scheme can simulate downhill flow in planar straight line and curved motion form, realize the simulation of full plane, multi-angle, multipath, and can realize through the bottom pond that the simulation downhill flow is to the wind field condition of the coupling simulation of surface of water structure.

Finally, it is noted that the above-mentioned preferred embodiments are only intended to illustrate rather than limit the utility model, and that, although the utility model has been described in detail by means of the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the utility model as defined by the appended claims.

Claims (7)

1. A down-burst simulation device, characterized in that: including down strike and violent flow generator (1), portal crane (2), rectangle frame seat (3) and rotation test bench (4), rectangle frame seat (3) level is placed, rotation test bench (4) rotate and set up rectangle frame seat (3) middle part, portal crane (2) both ends are smooth to be established the both sides edge of rectangle frame seat (3), portal crane (2) top is equipped with suspension slide rail (21), suspension slide rail (21) extending direction perpendicular to portal crane (2) slip direction, down strike and violent flow generator (1) slip is established on suspension slide rail (21).

2. The down-storm simulation device of claim 1 wherein: the gantry crane (2) comprises two telescopic support columns (22) and a cantilever beam (23), wherein two ends of the cantilever beam (23) are fixedly connected with the top ends of the telescopic support columns (22), the cantilever slide rail (21) is fixed below the cantilever beam (23), the telescopic support columns (22) comprise upper columns (221) and lower columns (222), the lower columns (222) are hollow, electric cylinders (223) are arranged inside the lower columns (222), the upper columns (221) slide in from the upper ends of the lower columns (222), and the output ends of the electric cylinders (223) are fixed with the lower ends of the upper columns (221).

3. The down-storm simulation device of claim 2 wherein: the lower end of the lower column (222) is provided with a supporting roller (224), two sides of the rectangular frame seat (3) are provided with horizontal sliding rails (31), and the supporting roller (224) is arranged on the horizontal sliding rails (31) in a sliding manner.

4. A down-burst simulation device according to claim 3, wherein: two support rods are also obliquely fixed on two sides of the lower column (222), support rollers (224) are arranged at the tail ends of the support rods, and the support rollers (224) are arranged on the horizontal sliding rail (31) in a rolling mode.

5. The down-storm simulation device of claim 1 wherein: the top end of the down-striking storm flow generator (1) is provided with a hanging roller (11), and the hanging roller (11) is arranged on the hanging sliding rail (21) in a rolling way.

6. The down-storm simulation device of claim 1 wherein: the middle part of the rectangular frame seat (3) is fixedly provided with an annular guide rail (32), the rotating test bed (4) is a disc-shaped base, and the outer edge of the rotating test bed (4) is contacted with the inner edge of the annular guide rail (32).

7. The down-storm simulation device of claim 1 wherein: a water tank is arranged on the rotation test stand (4).