A net rack lifting experimental device capable of simulating different wind speeds

Abstract

The utility model discloses a net frame lifting experimental device of being able to analog different wind speed, include: support frame, support frame top fixed setting has mount, and mount outside fixed mounting has fairing, and fairing outside fixed setting has adjusting assembly, and adjusting assembly outside setting has drive structure, and fairing top fixed setting has detection assembly, wherein, adjusting assembly includes: side edge frame, cross axle, adjusting plate, first adjusting arm, first link seat, second adjusting arm and second link seat. The utility model can adjust the opening and closing degree of two adjusting plates, is favorable to the regulation to wind speed, utilizes wind speed sensor simultaneously, can real -time monitoring the wind speed of outlet, and then can according to the experiment demand to the meticulous, accurate regulation to wind speed, provides the highly controllable wind field environment for experiment, satisfies the simulation demand of net frame lifting experiment to different wind speed environment.

Description

Technical Field

[0001] This utility model belongs to the field of space frame lifting experiment technology, and more specifically, it relates to a space frame lifting experiment device that can simulate different wind speeds. Background Technology

[0002] In modern industrial buildings, logistics plants serve as key hubs, with increasing demands for scale and functionality. Steel structure space frames, due to their advantages such as light weight, high strength, and large span, have become an ideal choice for their roofs, meeting the requirements for large spans while reducing weight and cost. However, logistics plants are often located in open areas and are easily affected by wind, such as Xining, where the windy season lasts for 6.2 months. During construction, steel structure space frames often need to be lifted during windy periods. To ensure safety, different lifting schemes must be comprehensively compared before construction.

[0003] Currently, although professional software can be used to simulate the construction of different lifting schemes and analyze the stress changes of the grid structure during the lifting process under different wind speeds, the software simulation is difficult to fully and accurately consider the complex characteristics of the wind field, the actual installation error of the grid structure, and the influence of various emergencies that may occur during construction on the stress of the grid structure. The simulation results deviate from the actual situation to a certain extent.

[0004] Therefore, it is essential to develop a space frame lifting experimental device that can simulate different wind speeds. By obtaining more accurate data through actual experiments, it can provide reliable technical support for the design, construction, and use of steel structure space frames in logistics plants, and ensure their safety and reliability. Utility Model Content

[0005] The purpose of this invention is to provide a space frame lifting experimental device that can simulate different wind speeds, so as to solve the problem mentioned in the background art that software simulation cannot fully consider the changes of the space frame and the simulation results deviate from the actual situation.

[0006] To achieve the above objectives, this utility model provides a grid lifting experimental device capable of simulating different wind speeds, comprising: a support frame, an installation frame fixedly mounted on the top of the support frame, a fairing fixedly mounted on the outside of the installation frame, an adjustment component fixedly mounted on the outside of the fairing, a drive structure fixedly mounted on the outside of the adjustment component, and a detection component fixedly mounted on the top of the fairing. The adjustment assembly includes: a side frame, a horizontal shaft, an adjustment plate, a first adjustment arm, a first connecting seat, a second adjustment arm, and a second connecting seat. Two sets of side frames are symmetrically arranged, and the two sets of side frames are fixedly arranged inside both sides of the fairing. The horizontal shaft is rotatably arranged inside the two sets of side frames. The adjustment plate is fixedly arranged outside the horizontal shaft and is located between the two sets of side frames. The adjustment plate and the horizontal shaft are both symmetrically arranged in two sets. The first adjustment arm is fixedly arranged at both ends of one set of horizontal shafts. The first connecting seat is slidably arranged inside the first adjustment arm through a dovetail groove. The second adjustment arm is fixedly arranged at both ends of the other set of horizontal shafts, and the second adjustment arm and the first adjustment arm are arranged in a cross configuration. The second connecting seat is slidably arranged inside the second adjustment arm through a dovetail groove.

[0007] In a preferred embodiment, a fan is fixedly installed inside the mounting frame, the fans are arranged in a straight line, and a rectifier grille is fixedly installed inside the rectifier cover.

[0008] In a preferred embodiment, the adjustment assembly further includes: a mounting base, a wind speed sensor, and a display. The mounting base is fixedly disposed on the outside of the side frame, the wind speed sensor is fixedly disposed on the inside of the mounting base, and the display is fixedly disposed on the outside of the side frame. The display and the wind speed sensor are electrically connected.

[0009] In a preferred embodiment, the drive structure includes: a drive frame, an electric cylinder, a sliding seat, and a connecting shaft. The drive frame is fixedly disposed on the outside of the side frame, the electric cylinder is fixedly disposed on the outside of the drive frame, the sliding seat is slidably disposed inside the drive frame through a dovetail groove, and the sliding seat is fixedly connected to the telescopic end of the electric cylinder. The connecting shaft is fixedly disposed on the outside of the sliding seat, and the connecting shaft is rotatably disposed between the first connecting seat and the second connecting seat.

[0010] In a preferred embodiment, the detection component includes: a detection frame, a fixed shaft, a connecting seat, auxiliary holes, a connecting plate, a high-speed camera, an information acquisition and processing module, and a wireless transmission module. The detection frame is fixedly mounted on the top of the fairing, the fixed shaft is fixedly mounted on the top of the detection frame, the connecting seat is rotatably mounted on the outside of the fixed shaft, the auxiliary holes are opened inside one side of the connecting seat and are arranged in a ring array, the connecting plate is fixedly mounted on the outside of the connecting seat, the high-speed camera is fixedly mounted on the outside of the connecting plate, the information acquisition and processing module is fixedly mounted on the outside of the connecting plate and is electrically connected to the high-speed camera, and the wireless transmission module is fixedly mounted on the outside of the connecting plate and is electrically connected to the information acquisition and processing module and the remote terminal.

[0011] In a preferred embodiment, the detection assembly further includes: an auxiliary seat, an adjusting screw, and a positioning post. The auxiliary seat is fixedly disposed at the end of the fixed shaft. The adjusting screw is threadedly disposed inside one side of the auxiliary seat, and a knob is fixedly disposed at one end of the adjusting screw. The positioning post is welded to the other end of the adjusting screw and is movably disposed inside the auxiliary hole. A chamfer is provided at the end of the positioning post.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, by setting a connecting shaft, a first connecting seat, and a second connecting seat, when the electric cylinder drives the sliding seat to slide, the first adjusting arm and the second adjusting arm can rotate in opposite directions simultaneously, so that the two sets of adjusting plates open and close in opposite directions. This allows for adjustment of the opening and closing degree of the two sets of adjusting plates, which is beneficial for adjusting the wind speed. At the same time, by using a wind speed sensor, the wind speed at the air outlet can be monitored in real time, and the wind speed can be adjusted in a detailed and precise manner according to experimental requirements. This provides a highly controllable wind field environment for the experiment and meets the simulation requirements of the grid lifting experiment for different wind speed environments.

[0013] 2. In this utility model, by setting up fans arranged in a straight line inside the mounting frame and cooperating with the rectifier grid inside the rectifier, a relatively uniform and stable airflow can be generated, providing a solid and reliable basic airflow condition for subsequent accurate simulation of different wind speeds.

[0014] 3. In this utility model, the high-speed camera in the detection component can capture the lifting process of the grid structure at high speed, capturing every detail and moment, providing rich image data for subsequent experimental analysis; the information acquisition and processing module can process and analyze the data acquired by the high-speed camera in real time, extract key information, such as the deformation and displacement of the grid structure, to provide accurate data support for experimental research, and can detect the real changes of the grid structure in the wind field, which helps to avoid the phenomenon that there is a certain deviation between the simulation results and the actual situation.

[0015] 4. In this utility model, the connecting seat can rotate around a fixed axis. By adjusting the screw, positioning post and auxiliary hole, the connecting seat can be easily fixed at different angle positions, thereby adjusting the shooting angle of the high-speed camera. This design allows the experimenter to flexibly adjust the shooting angle according to actual needs, obtain more comprehensive experimental data, and improve the flexibility and adaptability of the experiment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the internal structure of the fairing of this utility model.

[0018] Figure 3This is a schematic diagram of the driving structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0020] Figure 5 This is a schematic diagram of the detection component of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the auxiliary seat of this utility model.

[0022] Figure 7 This is a schematic diagram of the auxiliary hole structure of this utility model.

[0023] Explanation of reference numerals in the attached figures: 1. Support frame; 101. Mounting frame; 102. Fan; 103. Fairing; 104. Fairing grille; 2. Adjustment assembly; 201. Side frame; 202. Horizontal shaft; 203. Adjustment plate; 204. First adjusting arm; 205. First connecting seat; 206. Second adjusting arm; 207. Second connecting seat; 208. Fixed seat; 209. Wind speed sensor; 2010. Display; 3. Drive structure; 301. Drive frame; 302. Electric cylinder; 303. Sliding seat; 304. Connecting shaft; 4. Detection assembly; 401. Detection frame; 402. Fixed shaft; 403. Connecting seat; 404. Auxiliary hole; 405. Auxiliary seat; 406. Adjusting screw; 407. Positioning column; 408. Connecting plate; 409. High-speed camera; 4010. Information acquisition and processing module; 4011. Wireless transmission module. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Example 1: As attached Figure 1 To be continued Figure 7 As shown, the experimental device for simulating different wind speeds of the present invention includes a support frame 1, a mounting frame 101 fixedly installed on the top of the support frame 1, a fairing 103 fixedly installed on the outside of the mounting frame 101, an adjustment component 2 fixedly installed on the outside of the fairing 103, a drive structure 3 fixedly installed on the outside of the adjustment component 2, and a detection component 4 fixedly installed on the top of the fairing 103.

[0026] In this embodiment, the adjustment assembly 2 includes: a side frame 201, a horizontal shaft 202, an adjustment plate 203, a first adjustment arm 204, a first connecting seat 205, a second adjustment arm 206, and a second connecting seat 207. The side frame 201 is fixedly disposed inside both sides of the fairing 103, and two sets of side frames 201 are symmetrically arranged. The horizontal shaft 202 is rotatably disposed inside the two sets of side frames 201. The adjustment plate 203 is fixedly disposed outside the horizontal shaft 202, and the adjustment plate 203 is located between the two sets of side frames 201. Both the adjustment plate 203 and the horizontal shaft 202 are symmetrically arranged in two sets. The first adjusting arm 204 is fixedly disposed at both ends of a set of horizontal shafts 202. The first connecting seat 205 is slidably disposed inside the first adjusting arm 204 through a dovetail groove. The second adjusting arm 206 is fixedly disposed at both ends of another set of horizontal shafts 202, and the second adjusting arm 206 and the first adjusting arm 204 are arranged in a cross manner. The second connecting seat 207 is slidably disposed inside the second adjusting arm 206 through a dovetail groove.

[0027] The adjustment assembly 2 also includes: a mounting base 208, a wind speed sensor 209, and a display 2010. The mounting base 208 is fixedly installed on the outside of the side frame 201, the wind speed sensor 209 is fixedly installed on the inside of the mounting base 208, and the display 2010 is fixedly installed on the outside of the side frame 201. The display 2010 and the wind speed sensor 209 are electrically connected.

[0028] The drive structure 3 includes: a drive frame 301, an electric cylinder 302, a sliding seat 303, and a connecting shaft 304. The drive frame 301 is fixedly mounted on the outside of the side frame 201, the electric cylinder 302 is fixedly mounted on the outside of the drive frame 301, and the sliding seat 303 is slidably mounted inside the drive frame 301 via a dovetail groove, and the sliding seat 303 is fixedly connected to the telescopic end of the electric cylinder 302. The connecting shaft 304 is fixedly mounted on the outside of the sliding seat 303, and the connecting shaft 304 is rotatably mounted between the first connecting seat 205 and the second connecting seat 207. By providing the connecting shaft 304, the first connecting seat 205, and the second connecting seat 207, this invention allows the first adjusting arm 204 and the second adjusting arm 206 to rotate simultaneously in opposite directions when the electric cylinder 302 drives the sliding seat 303 to slide, causing the two sets of adjusting plates 203 to open and close in opposite directions; thus, the opening and closing degree of the two sets of adjusting plates 203 can be adjusted, which is beneficial for adjusting the wind speed.

[0029] Example 2: As attached Figure 2As shown, based on Embodiment 1, a fan 102 is fixedly installed inside the mounting frame 101, and the fan 102 is arranged in a straight line. A rectifier grille 104 is fixedly installed inside the rectifier shroud 103. By installing the fan 102 arranged in a straight line inside the mounting frame 101, and in conjunction with the rectifier grille 104 inside the rectifier shroud 103, a relatively uniform and stable airflow can be generated, providing a solid and reliable foundation for subsequent accurate simulation of different wind speeds.

[0030] Example 3: As attached Figure 5 To be continued Figure 7 As shown, based on Embodiments 1 and 2, the detection component 4 includes: a detection frame 401, a fixed shaft 402, a connecting seat 403, an auxiliary hole 404, an auxiliary seat 405, an adjusting screw 406, a positioning post 407, a connecting plate 408, a high-speed camera 409, an information acquisition and processing module 4010, and a wireless transmission module 4011. The detection frame 401 is fixedly mounted on the top of the fairing 103, the fixed shaft 402 is fixedly mounted on the top of the detection frame 401, and the connecting seat 403 is rotatably mounted on the outside of the fixed shaft 402. The auxiliary hole 404 is opened inside one side of the connecting seat 403, and the auxiliary holes 404 are arranged in a ring array. The connecting plate 408 is fixedly mounted on the outside of the connecting seat 403. A high-speed camera 409 is fixedly mounted on the outside of a connecting plate 408. An information acquisition and processing module 4010 is fixedly mounted on the outside of the connecting plate 408, and is electrically connected to the high-speed camera 409. A wireless transmission module 4011 is fixedly mounted on the outside of the connecting plate 408, and is electrically connected to the information acquisition and processing module 4010 and the remote terminal. An auxiliary seat 405 is fixedly mounted on the end of a fixed shaft 402. An adjusting screw 406 is threadedly connected to one side of the auxiliary seat 405, and a knob is fixedly mounted on one end of the adjusting screw 406. A positioning post 407 is welded to the other end of the adjusting screw 406, and is movably mounted inside an auxiliary hole 404, with a chamfered end. The high-speed camera 409 in the detection component 4 can capture the lifting process of the grid structure at high speed, capturing every detail and moment, providing rich image data for subsequent experimental analysis; extracting key information such as deformation and displacement of the grid structure can detect the real changes of the grid structure in the wind field, which helps to avoid the phenomenon that there is a certain deviation between the simulation results and the actual situation.

[0031] The specific usage method of this embodiment is described below: In this invention, a random speckle pattern is sprayed onto the grid frame during use. The wind speed range and variation pattern to be simulated are determined according to experimental requirements. The current wind speed can be monitored and displayed in real time via the wind speed sensor 209 and the display 2010, providing a reference for wind speed adjustment. The fan 102 inside the mounting frame 101 is started. The fan 102 is arranged in a straight line, generating initial airflow. After being rectified by the rectifier grille 104 inside the rectifier shroud 103, a relatively uniform and stable basic airflow is formed. The electric cylinder 302 in the drive structure 3 is activated, and its telescopic end extends and retracts, causing the sliding seat 303 to slide within the drive frame 301. The sliding seat 303 is connected to the first connecting seat 205 and the second connecting seat 207 in the adjustment assembly 2 via the connecting shaft 304. Because the first adjusting arm 204 and the second adjusting arm 206 are arranged in a cross configuration, they rotate in opposite directions. The first adjusting arm 204 and the second adjusting arm 206 drive the two sets of adjusting plates 203 to rotate in opposite directions via two sets of horizontal shafts 202, thereby adjusting the opening and closing degree of the two sets of adjusting plates 203. The change in the opening and closing degree of the adjusting plates 203 directly affects the width of the airflow channel. According to the principles of fluid mechanics, the change in channel width leads to a change in airflow velocity, thus achieving precise adjustment of wind speed. By observing the wind speed data displayed on the monitor 2010, the wind speed is adjusted to the value required for the experiment. The grid lifting system is started, and the grid is slowly lifted. When the grid passes through the airflow area, the high-speed camera 409 in the detection component 4 immediately starts working. The high-speed camera 409 captures the speckle pattern on the surface of the grid at high frequency, recording key information such as the deformation and displacement of the grid under the action of airflow. The information acquisition and processing module 4010 acquires the data transmitted by the high-speed camera 409 in real time, performs preliminary processing and analysis, and extracts useful information. The wireless transmission module 4011 transmits the processed data to the remote terminal in real time, facilitating remote monitoring and analysis by the experimental personnel. If the shooting angle of the high-speed camera 409 needs to be adjusted during the experiment, the connecting seat 403 can be rotated. The connecting seat 403 rotates around the fixed shaft 402. After rotating to the appropriate angle, the adjusting screw 406 on the auxiliary seat 405 is rotated. The adjusting screw 406 is threaded into the auxiliary seat 405. The positioning pin 407 at one end of the adjusting screw 406 will move with the rotation of the adjusting screw 406, so that the positioning pin 407 is inserted into the auxiliary hole 404, thereby positioning the connecting seat 403 and fixing the shooting angle of the high-speed camera 409.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A space frame lifting experimental device capable of simulating different wind speeds, characterized in that, include: A support frame (1) is fixedly provided with a mounting frame (101) on the top of the support frame (1), and a fairing (103) is fixedly installed on the outside of the mounting frame (101). An adjustment component (2) is fixedly provided on the outside of the fairing (103), and a drive structure (3) is provided on the outside of the adjustment component (2). A detection component (4) is fixedly provided on the top of the fairing (103). The adjustment assembly (2) includes: a side frame (201), a horizontal shaft (202), an adjustment plate (203), a first adjustment arm (204), a first connecting seat (205), a second adjustment arm (206), and a second connecting seat (207). Two sets of side frames (201) are symmetrically arranged. The two sets of side frames (201) are fixedly arranged inside both sides of the fairing (103). The horizontal shaft (202) is rotatably arranged inside the two sets of side frames (201). The adjustment plate (203) is fixedly arranged outside the horizontal shaft (202), and the adjustment plate (203) is located at... Between the two sets of side frames (201), and the adjusting plate (203) and the horizontal shaft (202) are symmetrically arranged in two sets. The first adjusting arm (204) is fixedly arranged at both ends of one set of horizontal shafts (202). The first connecting seat (205) is slidably arranged inside the first adjusting arm (204) through the dovetail groove. The second adjusting arm (206) is fixedly arranged at both ends of the other set of horizontal shafts (202). The second adjusting arm (206) and the first adjusting arm (204) are arranged in a cross manner. The second connecting seat (207) is slidably arranged inside the second adjusting arm (206) through the dovetail groove.

2. The experimental device for simulating different wind speeds for lifting a grid structure according to claim 1, characterized in that: The mounting bracket (101) has a fan (102) fixedly installed inside. The fan (102) is arranged in a straight line, and the rectifier grille (104) is fixedly installed inside the rectifier cover (103).

3. The experimental device for simulating different wind speeds for lifting a grid structure according to claim 1, characterized in that: The adjustment assembly (2) further includes: a fixed base (208), a wind speed sensor (209), and a display (2010). The fixed base (208) is fixedly installed on the outside of the side frame (201), the wind speed sensor (209) is fixedly installed on the inside of the fixed base (208), and the display (2010) is fixedly installed on the outside of the side frame (201). The display (2010) and the wind speed sensor (209) are electrically connected.

4. The experimental device for simulating different wind speeds for lifting a grid structure according to claim 1, characterized in that: The drive structure (3) includes: a drive frame (301), an electric cylinder (302), a sliding seat (303), and a connecting shaft (304). The drive frame (301) is fixedly installed on the outside of the side frame (201), the electric cylinder (302) is fixedly installed on the outside of the drive frame (301), the sliding seat (303) is slidably installed inside the drive frame (301) through a dovetail groove, and the sliding seat (303) is fixedly connected to the telescopic end of the electric cylinder (302). The connecting shaft (304) is fixedly installed on the outside of the sliding seat (303), and the connecting shaft (304) is rotatably installed between the first connecting seat (205) and the second connecting seat (207).

5. The experimental device for simulating different wind speeds for lifting a grid structure according to claim 1, characterized in that: The detection component (4) includes: a detection frame (401), a fixed shaft (402), a connecting seat (403), an auxiliary hole (404), a connecting plate (408), a high-speed camera (409), an information acquisition and processing module (4010), and a wireless transmission module (4011). The detection frame (401) is fixedly mounted on the top of the fairing (103), the fixed shaft (402) is fixedly mounted on the top of the detection frame (401), the connecting seat (403) is rotatably mounted on the outside of the fixed shaft (402), and the auxiliary hole (404) is opened inside one side of the connecting seat (403). The auxiliary holes (404) are arranged in a ring array. The connecting plate (408) is fixedly installed on the outside of the connecting seat (403). The high-speed camera (409) is fixedly installed on the outside of the connecting plate (408). The information acquisition and processing module (4010) is fixedly installed on the outside of the connecting plate (408). The information acquisition and processing module (4010) and the high-speed camera (409) are electrically connected. The wireless transmission module (4011) is fixedly installed on the outside of the connecting plate (408). The wireless transmission module (4011) is electrically connected to the information acquisition and processing module (4010) and the remote terminal.

6. The experimental device for simulating different wind speeds for lifting a grid structure according to claim 5, characterized in that: The detection component (4) further includes: an auxiliary seat (405), an adjusting screw (406), and a positioning post (407). The auxiliary seat (405) is fixedly installed at the end of the fixed shaft (402). The adjusting screw (406) is connected to the inside of one side of the auxiliary seat (405) by a threaded connection, and a knob is fixedly installed at one end of the adjusting screw (406). The positioning post (407) is welded to the other end of the adjusting screw (406), and the positioning post (407) is movably installed inside the auxiliary hole (404). The end of the positioning post (407) is chamfered.

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