Prefabricated vertical silo group model test device

Abstract

The present invention relates to an assembled vertical silo group model test device, comprising at least two vertical silo simulation units and a device bottom plate for connecting to a corresponding vibration table, wherein the vertical silo simulation unit comprises a unit bottom plate for detachably connecting to the device bottom plate through bolts, a simulated vertical silo is connected to the unit bottom plate through legs, a pressure sensor is arranged on the inner wall of the simulated vertical silo, the simulated vertical silo is a cylindrical structure, the simulated vertical silos of two adjacent vertical silo simulation units are connected through a vertical silo connector, the vertical silo connector has an arc-shaped connecting recess adapted to the outer periphery of the corresponding simulated vertical silo, the arc-shaped connecting recess is connected to the silo wall of the corresponding simulated vertical silo through bolts, and the simulated vertical silo, the legs, the unit bottom plate and the device bottom plate are all made of organic glass. The present invention provides an assembled vertical silo group model test device capable of studying the pressure change of grain on the silo wall in a vibration environment.

Description

Technical Field

[0001] The invention relates to an assembled vertical cylinder group silo model test device in the field of grain silo experiments. Background Art

[0002] Vertical silos made of concrete are a commonly used storage structure for grain storage. In order to increase the amount of grain reserves, there are often more than one vertical silo, and multiple vertical silos constitute a vertical silo cluster.

[0003] When in use, the silo will be filled with grain, which will exert pressure on the silo wall. This pressure is the main reference factor for the strength design of the silo. In the real environment, the pressure of grain on the silo wall will change according to the environment. For example, in an earthquake environment, the displacement and shaking of the silo itself will cause the pressure of grain on the silo wall to change. However, there is currently a lack of corresponding test equipment that can study the changes in the pressure of grain on the silo wall in an earthquake environment, resulting in a lack of corresponding theoretical basis in the design of silos, which poses certain safety hazards. Summary of the invention

[0004] The purpose of the present invention is to provide an assembled vertical silo group model test device which can study the pressure change of grain on silo wall in a vibration environment.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] The assembled vertical silo group model test device comprises at least two vertical silo simulation units and a device bottom plate for connecting to corresponding vibration tables. The vertical silo simulation unit comprises a unit bottom plate for detachably connecting to the device bottom plate by bolts. The simulated vertical silo is connected to the unit bottom plate by legs. A pressure sensor is arranged on the inner wall of the simulated vertical silo. The simulated vertical silo is a cylindrical structure. The simulated vertical silos of two adjacent vertical silo simulation units are connected by a vertical silo connector. The vertical silo connector has an arc-shaped connecting recess adapted to the outer periphery of the corresponding simulated vertical silo. The arc-shaped connecting recess is connected to the silo wall of the corresponding simulated vertical silo by bolts. The simulated vertical silo, the legs, the unit bottom plate and the device bottom plate are all made of organic glass.

[0007] The bottom plates of each device are of square structure, and the two bottom plates of the device of two adjacent vertical silo simulation units are adapted to be pasted together.

[0008] A ring beam is arranged between the bottom of the simulated vertical silo and the supporting legs, and an upwardly protruding positioning boss is arranged on the upper end of the ring beam, and the simulated vertical silo is sleeved on the positioning boss.

[0009] The ring beam is made of organic glass, and the positioning boss is fixed to the simulated vertical silo by gluing and / or bolts.

[0010] There are multiple legs, which are arranged in sequence along the circumferential direction. Each leg includes a vertical support bar and an arc-shaped connecting block fixed to the top of the vertical support bar and adapted to the curvature of the ring beam. The arc-shaped connecting block is fixedly connected to the ring beam by bolts.

[0011] The unit bottom plate is provided with support bar positioning grooves for corresponding positioning and plugging of each vertical support bar, and the support bar positioning grooves and the vertical support bars are fixed by gluing and / or bolts.

[0012] The vertical silo simulation unit also includes a discharge cone located at the lower side of the simulated vertical silo. The discharge cone is made of plexiglass. The inner hole of the ring beam is a conical hole adapted to the outer cone surface of the discharge cone. The ring beam is sleeved on the outside of the discharge cone. The discharge cone and the ring beam are fixed by gluing and / or bolts.

[0013] The device bottom plate is composed of a left bottom plate part and a right bottom plate part. A connecting groove is provided on the device bottom plate, which spans the left bottom plate part and the right bottom plate part in the left-right direction. A connecting plate is adapted to be installed in the connecting groove. The two ends of the connecting plate are respectively connected to the left bottom plate part and the right bottom plate part by bolts.

[0014] The device bottom plate is made of organic glass.

[0015] The bottom plate of the device has a connecting ring which is located on the outside of the vibration table when in use and is used to connect to the vibration table. The vertical silo simulation unit is placed on the inside of the connecting ring. The assembled vertical silo group silo model test device also includes a bottom plate connecting piece for connecting the vibration table to the connecting ring. The bottom plate connecting piece includes a vibration table connecting side plate connected to the outer side wall of the vibration table by bolts and a bottom plate connecting side plate connected to the bottom of the connecting ring by bolts. The vibration table connecting side plate and the bottom plate connecting side plate form an L-shaped structure.

[0016] The beneficial effects of the present invention are as follows: when in use, a suitable number of vertical silo simulation units are installed on the bottom plate of the device as needed, the bottom plate of the device is installed on a vibration table, the vibration table vibrates the vertical silo simulation units, thereby simulating an earthquake environment, and the changes in the pressure sensor readings are observed during the vibration, thereby studying the impact of grain on the silo wall caused by the vibration. The unit bottom plate is detachably connected to the device bottom plate by bolts, so that a suitable number of vertical silo simulation units can be selected for research as needed, the vertical silo connectors of adjacent simulated vertical silos can ensure the strength of the simulated vertical silo, and ensure that the simulated vertical silo is not easily deformed, and the simulated vertical silo, the legs, the unit bottom plate and the device bottom plate are all made of organic glass, which can make the test easy to observe on the one hand, and on the other hand, can reduce the weight and volume of the test device, reduce the maximum power demand for the vibration table, and reduce the test cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a single vertical silo simulation unit in the present invention;

[0018] Figure 2 yes Figure 1 Exploded diagram of

[0019] Figure 3 It is an exploded view of nine vertical silo simulation units in the present invention when used simultaneously;

[0020] Figure 4 yes Figure 3 Stereoscopic image of

[0021] Figure 5 It is a structural schematic diagram of the bottom plate of the device in the present invention;

[0022] Figure 6 It is a schematic diagram of the coordination between the bottom plate of the device and the vibration table in the present invention;

[0023] Figure 7 yes Figure 6 Schematic diagram of the structure of the midsole plate connector. DETAILED DESCRIPTION

[0024] The implementation example of the model test device of the assembled vertical silo group Figures 1 to 7 As shown: it includes a device bottom plate 5 and nine vertical silo simulation units 10, the central area 52 of the device bottom plate is used to install the vertical silo simulation units, and the edge area of ​​the device bottom plate forms a connection ring 53 for connecting to the vibration table. In this embodiment, the device bottom plate is made of organic glass, and the device bottom plate is composed of a left bottom plate part 51 and a right bottom plate part 52. The device bottom plate is provided with a connection groove that spans the left bottom plate part and the right bottom plate part in the left-right direction, and a connection plate 11 is adapted to be installed in the connection groove. The two ends of the connection plate are respectively connected to the left bottom plate part and the right bottom plate part by bolts. The widths of the left bottom plate part and the right bottom plate part are the same, and the length of the right bottom plate part is twice that of the left bottom plate part. A maximum of three vertical silo simulation units can be installed on the left bottom plate part in the front-back direction, and a maximum of six vertical silo simulation units can be installed on the right bottom plate part.

[0025] The assembled vertical cylinder group silo model test device also includes a bottom plate connector 12 for connecting the vibration table to the connecting ring. The bottom plate connector includes a vibration table connecting side plate 13 connected to the outer wall of the vibration table by bolts and a bottom plate connecting side plate 14 connected to the bottom of the connecting ring 53 by bolts. The vibration table connecting side plate and the bottom plate connecting side plate form an L-shaped structure, and there is a connecting rib plate 15 between the table connecting side plate and the bottom plate connecting side plate. The vibration table is a square structure as a whole, and the bottom plate connectors are distributed around the table, that is, a bottom plate connector is provided on each side of the vibration table.

[0026] The vertical silo simulation unit includes a unit bottom plate 5 for detachably connecting to the device bottom plate by bolts. The unit bottom plate is a square structure. A ring beam 3 is connected to the unit bottom plate by legs. The upper end of the ring beam is connected to the simulated vertical silo 2. A pressure sensor is arranged on the inner wall of the simulated vertical silo 2. In this embodiment, the pressure sensor is a thin film pressure sensor. The simulated vertical silo is a cylindrical structure. The simulated vertical silos of two adjacent vertical silo simulation units are connected by a plurality of vertical silo connectors 6. The opposite sides of the vertical silo connectors have arc-shaped connecting recesses 7 for matching with the outer periphery of the corresponding simulated vertical silo. The arc-shaped connecting recesses 7 are connected to the silo wall of the corresponding simulated vertical silo by bolts. The two device bottom plates of two adjacent vertical silo simulation units are matched and attached together. That is to say, when nine vertical silo simulation units are used together, the device bottom plates 5 of the adjacent vertical silo simulation units are matched and attached together, and the arc-shaped connecting recesses on the opposite sides of the vertical silo connectors are also attached to the outer walls of the adjacent simulated vertical silos. Figure 3 , Figure 4 In order to facilitate observation, there is a certain distance between two adjacent vertical silo simulation units.

[0027] The upper end of the ring beam has an upwardly convex positioning boss 31, and the simulated vertical silo 2 is sleeved on the positioning boss, and the positioning boss is fixed to the simulated vertical silo by gluing and bolts. Each vertical silo simulation unit has multiple legs 4, and the legs are arranged in sequence and spaced along the circumferential direction. Each leg includes a vertical support bar 42 and an arc-shaped connecting block 41 fixed to the top of the vertical support bar and adapted to the curvature of the ring beam, and the arc-shaped connecting block 41 is fixedly connected to the ring beam by bolts. The unit bottom plate is provided with a support bar positioning groove 8 for corresponding positioning and plugging of each vertical support bar, and the support bar positioning groove 8 is fixed to the vertical support bar by gluing and bolts. The vertical silo simulation unit also includes a discharge cone 9 located on the lower side of the simulated vertical silo, the inner hole of the ring beam is a conical hole adapted to the outer cone surface of the discharge cone, the ring beam is sleeved on the outside of the discharge cone 9, and the discharge cone is fixed to the ring beam by gluing and bolts. The above-mentioned discharge cone, ring beam, legs, simulated vertical silo, and silo connectors are all made of plexiglass. A silo cover plate 1 made of plexiglass is fixed on the top of the simulated vertical silo. The silo cover plate 1 is a square structure. The adjacent sides of the silo covers of two adjacent vertical silo simulation units are pressed against each other, so that the top and bottom of the two adjacent vertical silo simulation units are in contact with each other, which helps to further ensure the overall strength of each vertical silo simulation unit.

[0028] When in use, each installed vertical silo simulation unit 10 is an integral structure. According to the needs, a suitable number of vertical silo simulation units are selected and installed on the bottom plate of the device. The simulated vertical silo of two adjacent vertical silo simulation units is connected by the vertical silo connector to ensure the strength of the simulated vertical silo during the experiment. Then, the device bottom plate equipped with the vertical silo simulation unit is hoisted to the vibration table. The size of the device bottom plate is larger than the size of the vibration table. The bottom plate connector is installed on the lower side of the device bottom plate and the side of the vibration table to fix the device bottom plate on the vibration table. The installation of the vertical silo simulation unit will not affect the connection between the device bottom plate and the vibration table. The left bottom plate part and the right bottom plate part are separately set, which can reduce the production cost of the device bottom plate. In addition, when a small number of vertical silo simulation units are needed, it is not necessary to use a complete device bottom plate. For example, when only three vertical silo simulation units need to be tested, only the left bottom plate part can be used. When six vertical silo simulation units need to be tested, only the right bottom plate part can be used. In other embodiments of the present invention: if the connection strength between the components can be ensured only by gluing, then the connection between the corresponding components can also be achieved only by gluing; of course, the connection between the corresponding two components can also be achieved only by bolts.

Claims

1. Assembled vertical silo group model test device, characterized by: It includes nine vertical silo simulation units and a device bottom plate for connecting to corresponding vibration tables. The vertical silo simulation unit includes a unit bottom plate for detachably connecting to the device bottom plate through bolts. The unit bottom plate is connected to a simulated vertical silo through legs. A pressure sensor is arranged on the inner wall of the simulated vertical silo. The simulated vertical silo is a cylindrical structure. The simulated vertical silos of two adjacent vertical silo simulation units are connected through a vertical silo connector. The vertical silo connector has an arc-shaped connecting recess adapted to the outer periphery of the corresponding simulated vertical silo. The arc-shaped connecting recess is connected to the silo wall of the corresponding simulated vertical silo through bolts. The simulated vertical silo, legs, unit bottom plate and device bottom plate are all made of plexiglass. The device bottom plate is composed of a left bottom plate part and a right bottom plate part, and a connecting groove is provided on the device bottom plate, which spans the left bottom plate part and the right bottom plate part along the left-right direction. A connecting plate is adapted to be installed in the connecting groove, and both ends of the connecting plate are respectively connected to the left bottom plate part and the right bottom plate part by bolts. The central area of ​​the device bottom plate is used to install the vertical silo simulation unit, and the edge area of ​​the device bottom plate forms a connecting ring for connecting to the vibration table. The widths of the left bottom plate part and the right bottom plate part are the same, and the length of the right bottom plate part is twice that of the left bottom plate part. A maximum of three vertical silo simulation units can be installed on the left bottom plate part along the front-back direction, and a maximum of six vertical silo simulation units can be installed on the right bottom plate part.

2. The assembled vertical silo group model test device according to claim 1 is characterized in that: The bottom plates of each unit are of square structure, and the two unit bottom plates of two adjacent vertical silo simulation units are adapted to be pasted together.

3. The assembled vertical silo group model test device according to claim 1 is characterized in that: A ring beam is arranged between the bottom of the simulated vertical silo and the supporting legs, and an upwardly protruding positioning boss is arranged on the upper end of the ring beam, and the simulated vertical silo is sleeved on the positioning boss.

4. The assembled vertical silo group model test device according to claim 3 is characterized in that: The ring beam is made of organic glass, and the positioning boss is fixed to the simulated vertical silo by gluing and / or bolts.

5. The assembled vertical silo group model test device according to claim 3 is characterized by: There are multiple legs, which are arranged in sequence along the circumferential direction. Each leg includes a vertical support bar and an arc-shaped connecting block fixed to the top of the vertical support bar and adapted to the curvature of the ring beam. The arc-shaped connecting block is fixedly connected to the ring beam by bolts.

6. The assembled vertical silo group model test device according to claim 5 is characterized in that: The unit bottom plate is provided with support bar positioning grooves for corresponding positioning and plugging of each vertical support bar, and the support bar positioning grooves and the vertical support bars are fixed by gluing and / or bolts.

7. The assembled vertical silo group model test device according to claim 3 is characterized by: The vertical silo simulation unit also includes a discharge cone located at the lower side of the simulated vertical silo. The discharge cone is made of plexiglass. The inner hole of the ring beam is a conical hole adapted to the outer cone surface of the discharge cone. The ring beam is sleeved on the outside of the discharge cone. The discharge cone and the ring beam are fixed by gluing and / or bolts.

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