Measuring device for porous material
By designing a measuring device for porous materials, using gas film thickness control components and sensor detection data, the problem of large and cumbersome measurement errors in the prior art of porous materials is solved, and high-precision and efficient measurement of air float bearing capacity is achieved.
Patent Information
- Application Number
- CN202420998518.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-09
AI Technical Summary
In the prior art, when measuring the air-floating bearing capacity of porous materials, the experimental methods have large errors and cumbersomeness, while the simulation methods require a lot of computing resources and time, and inaccurate parameter settings affect the reliability and accuracy of the model.
A measuring device for porous materials is designed, including a kettle body, a displacement sensor, a tension gauge, a gas film thickness control assembly, a floating block and a moving rod. The position of the floating block and a moving rod is controlled through the air film thickness control assembly, and the data is detected in real time by using the displacement sensor and a tension gauge to ensure the accuracy and accuracy of the gas film measurement.
The device can accurately measure the air-floating bearing capacity of porous materials, reduce errors, simplify the measurement process, and improve measurement efficiency and accuracy.
Smart Images
Figure CN222618071U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of porous materials, in particular to a measuring device for porous materials. Background Art
[0002] In recent years, with the deepening of research on microstructures, porous materials have been widely used in many fields due to their unique structure. They are often used for filtering impurities, catalytic reactions, heat exchange structures, flotation, etc.
[0003] The parameters used to measure the performance of porous materials mainly include porous particle size, pore size, porosity, permeability, etc. When porous materials are used in air-floating structures, it is necessary to obtain the air-floating bearing capacity of the porous materials. Conventional methods of obtaining this capacity include experimental measurement or simulation, but both methods have corresponding defects:
[0004] (1) The air bearing capacity data obtained from the experiment often have large errors due to differences in manufacturing materials. In addition, the measurement process is cumbersome and needs to be carried out in a specific environment. However, the specific environment may not fully simulate the conditions in the actual application environment, resulting in differences between the measurement results and the actual situation.
[0005] (2) Since the pore structure of porous materials is relatively complex, a large amount of computing resources and time are required to establish a numerical model to describe its internal structure and gas flow behavior. At the same time, it is also necessary to set a variety of parameters, such as the pores, size, and shape of the porous materials. The accuracy of these parameters may affect the reliability and accuracy of the model. Utility Model Content
[0006] In order to overcome the deficiencies of the prior art, the utility model provides a measuring device for porous materials, which can ensure the accuracy and precision of air film measurement.
[0007] The technical solution adopted by the utility model to solve its technical problems is:
[0008] A measuring device for porous materials comprises a kettle body, a displacement sensor, a tensile gauge, an air film thickness control component, a floating block and a moving rod; the top of the kettle body is provided with an opening for gas outflow, the bottom of the kettle body is provided with a connecting port for gas inflow, a test position for placing a material to be measured is provided between the connecting port and the opening, one end of the moving rod extends along the opening to the outside of the kettle body and is connected to the air film thickness control component, the other end of the moving rod is connected to a floating block, the floating block is provided above the test position, and the displacement sensor and the tensile gauge are both connected to the moving rod.
[0009] Furthermore, the bottom area of the floating block accounts for 65% to 95% of the surface area of the material to be measured.
[0010] Furthermore, an annular seal and a porous material fixed end cover are provided in the kettle body, and the test is located between the annular seal and the porous material fixed end cover.
[0011] Furthermore, a first sealing groove is provided on a side of the annular sealing member facing the porous material fixing end cover, and a second sealing ring is provided in the first sealing groove and protrudes from the first sealing groove.
[0012] Furthermore, a step structure is provided between the annular seal and the porous material fixed end cover, the step structure includes an annular step provided on the annular seal and an annular protrusion structure provided on the porous material fixed end cover, and the test position is provided between the annular step and the annular protrusion structure.
[0013] Furthermore, the test position is arranged at the middle part of the annular seal; and a first sealing ring is arranged on the contact surface between the annular seal and the kettle body.
[0014] Furthermore, a displacement sensor connecting block is provided at the upper end of the moving rod, the displacement sensor is connected to the displacement sensor connecting block, the air film thickness measurement assembly also includes a displacement sensor bracket, the displacement sensor bracket is provided with a protrusion structure, and the displacement sensor connecting block is provided with a groove structure adapted to the protrusion structure, and the cooperation between the protrusion structure and the groove structure realizes the connection and positioning of the displacement sensor bracket and the displacement sensor connecting block.
[0015] Furthermore, the displacement sensor brackets are provided with four groups, and the four groups of displacement sensor brackets are distributed in a cross shape in the circumferential direction of the moving rod.
[0016] Furthermore, the porous material measuring device also includes a tension gauge bracket, the tension gauge is arranged on the tension gauge bracket, the tension gauge is connected to the top of the moving rod, and the tension gauge bracket is connected to the air film thickness control component.
[0017] Furthermore, the air film thickness control component includes a Z-axis lifting module and an XYZ slide, the Z-axis lifting module is provided with an adapter plate, the XYZ slide is arranged on the adapter plate, and the XYZ slide is connected to the dynamometer bracket through a T-shaped support plate.
[0018] The beneficial effects of the utility model are:
[0019] The utility model provides an air floating bearing capacity measuring device, which controls the positions of the floating block and the moving rod by arranging an air film thickness control component, limits the position of the floating block by the moving rod, and further arranges a displacement sensor and a tension meter to detect real-time data, thereby ensuring the accuracy and precision of air film measurement. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] Figure 1 It is a schematic diagram (axonometric) of the kettle body in the utility model;
[0022] Figure 2 It is a schematic diagram of the kettle body in the utility model (top view);
[0023] Figure 3 is along Figure 2 Section view of AA in the middle;
[0024] Figure 4 It is a schematic diagram of the annular seal in the utility model;
[0025] Figure 5 It is an overall schematic diagram of the measuring device for porous materials in the utility model;
[0026] Figure 6 It is a partial structural schematic diagram of the measuring device for porous materials in the utility model;
[0027] Figure 7 This is a structural disassembly diagram of the displacement sensor connecting block, the groove structure, the moving rod, the blocking block, the arc groove and the floating block in the utility model;
[0028] Description of reference numerals:
[0029] 1. Kettle body; 10. Bottom plate; 101. First screw; 11. Opening; 12. Connection port; 13. Test position; 14. Annular seal; 140. First sealing ring; 141. First protruding structure; 142. Groove; 143. First sealing groove; 144. Second sealing ring; 15. Porous material fixed end cover; 2. Z-axis lifting module; 20. Adapter plate; 21. XYZ slide; 22. T-type support plate; 23. Tension gauge bracket; 24. Tension gauge; 30. Moving rod; 31. Blocking block; 32. Floating block; 320. Arc groove; 33. Displacement sensor; 330. Displacement sensor connecting block; 331. Displacement sensor bracket; 332. Groove structure. DETAILED DESCRIPTION
[0030] The following will clearly and completely describe the concept, specific structure and technical effects of the utility model in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the utility model can be combined interchangeably without conflicting with each other.
[0031] Reference Figures 1 to 7 The utility model provides a measuring device for porous materials, which comprises a kettle body 1, a displacement sensor 331, a dynamometer 24, an air film thickness control component, a floating block 32 and a moving rod 30; an opening 11 for gas outflow is provided at the top of the kettle body 1, a connecting port 12 for gas inflow is provided at the bottom of the kettle body 1, a test position 13 for placing a material to be measured is provided between the connecting port 12 and the opening 11, one end of the moving rod 30 extends along the opening 11 to the outside of the kettle body 1 and is connected to the air film thickness control component, the other end of the moving rod 30 is connected to a floating block 32, the floating block 32 is provided above the test position 13, and the displacement sensor 331 and the dynamometer 24 are both connected to the moving rod 30.
[0032] A bottom plate 10 is provided at the bottom of the kettle body 1 , and the kettle body 1 and the bottom plate 10 are locked and connected by a first screw 101 .
[0033] In this embodiment, an annular seal 14 and a porous material fixed end cover 15 are disposed in the kettle body, and the test position 13 is located between the annular seal 14 and the porous material fixed end cover 15 .
[0034] In this embodiment, a first sealing groove 143 is provided on a side of the annular sealing member 14 facing the porous material fixing end cover 15 , and a second sealing ring 144 is provided in the first sealing groove 143 and protrudes from the first sealing groove 143 .
[0035] In this embodiment, a step structure is provided between the annular seal 14 and the porous material fixed end cover 15, and the step structure includes an annular step provided on the annular seal 14 and an annular protrusion structure provided on the porous material fixed end cover 15, and the test position is provided between the annular step and the annular protrusion structure.
[0036] Specifically, an annular seal 14 is provided in the kettle body 1, and the test position 13 is provided in the middle of the annular seal 14;
[0037] When the opening 11 introduces gas into the kettle body 1, the gas passes through the porous material on the test position 13 and then flows out to the outside of the kettle body 1 along the connection port 12. In this embodiment, the annular seal 14 is connected to the kettle body 1 by screw locking, and a first sealing ring 140 is provided on the contact surface between the annular seal 14 and the kettle body 1, and the first sealing ring 140 is used to enable the gas to flow out completely along the porous material.
[0038] In this embodiment, a blocking block 31 is provided between the moving rod 30 and the floating block 32. The blocking block 31 is set as a spherical structure, and the floating block 32 is provided with an arc-shaped groove 320 adapted to the outer peripheral contour of the blocking block 31. When gas is introduced into the opening 11, the floating block 32 will float upward, and the arc-shaped groove 320 will have a surface contact with the spherical structure. The blocking block 31 is used to limit the rising height of the floating block 32 to achieve the control of the thickness of the air film; and the surface contact relationship between the floating block 32 and the blocking block 31 makes the floating block 32 parallel to the air floating surface of the porous material, and the thickness of the air film is in a uniform state.
[0039] In this embodiment, a plurality of raised structures 141 are evenly arranged on the annular inner circumference of the annular seal 14. The function of the raised structures 141 is to limit the up and down movement of the floating block 32 and to play a guiding role. Furthermore, the raised structures 141 are arranged at intervals, and a groove 142 is formed between each two adjacent raised structures 141. The groove 142 serves as a gas channel to circulate air to prevent excessive buoyancy from affecting the measurement effect.
[0040] Furthermore, to ensure the accuracy of the air buoyancy measurement, the bottom area of the floating block 32 accounts for 65% to 95% of the surface area of the porous material.
[0041] In this embodiment, a displacement sensor connecting block 330 is provided at the upper end of the moving rod 30, and the displacement sensor 33 is connected to the displacement sensor connecting block 330; the displacement sensor bracket 331 is provided with a second protrusion structure, and the displacement sensor connecting block 330 is provided with a groove structure 332 adapted to the second protrusion structure, and the cooperation between the second protrusion structure and the groove structure 332 realizes the connection and positioning of the displacement sensor 33 bracket and the displacement sensor connecting block 330.
[0042] Furthermore, four groups of the displacement sensor 33 brackets are provided, and the four groups of the displacement sensor 33 brackets are cross-distributed around the moving rod 30. By reading the data of the displacement sensor 33 in four directions and performing detection and comparison, the accuracy and precision of the air film measurement are ensured.
[0043] In this embodiment, the porous material measuring device further comprises a tensile gauge bracket 23, the tensile gauge 24 is arranged on the tensile gauge bracket 23, the tensile gauge 24 is connected to the top of the moving rod 30, and the tensile gauge bracket 23 is connected to the air film thickness control component.
[0044] The air film thickness control component includes a Z-axis lifting module 2 and an XYZ slide 21 . The Z-axis lifting module 2 is provided with an adapter plate 20 . The XYZ slide 21 is provided on the adapter plate 20 . The XYZ slide 21 is connected to the dynamometer bracket 23 via a T-shaped support plate 22 .
[0045] The working principle of the measuring device of the utility model is as follows:
[0046] Before measuring the porous material, it is necessary to determine the distance between the floating block 32 and the porous material, control the thickness of the air film through the Z-axis lifting module 2 or the XYZ slide 21 in the air film thickness control component, and determine the reference value when the floating block 32 contacts the porous material through the change in the reading of the dynamometer 24 and the reading of the displacement sensor 33. The moving rod 30 is adjusted and fixed by the Z-axis lifting module 2 or the XYZ slide 21, and the reading of the displacement sensor 33 is recorded; gas is introduced into the kettle body 1 through the opening 11, and after the gas flows through the porous material, it provides an upward thrust to the floating block 32, so that the arc groove 320 of the floating block 32 contacts the blocking block 31, and the blocking block 31 limits the floating block 32 from continuing to move upward. The thickness of the air film is determined according to the change in the reading of the displacement sensor 33, and the value output by the dynamometer 24 is the size of the air buoyancy under the thickness of the air film. The air film thickness control component is used to adjust the air buoyancy at different heights of the moving rod 30, and the air buoyancy data of different air buoyancy materials are obtained after calculation.
[0047] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.
Claims
1. A measuring device for porous materials, characterized in that: It includes a kettle body, a displacement sensor, a tensile gauge, an air film thickness control component, a floating block and a moving rod; the top of the kettle body is provided with an opening for gas outflow, the bottom of the kettle body is provided with a connecting port for gas inflow, a test position for placing a material to be measured is provided between the connecting port and the opening, one end of the moving rod extends along the opening to the outside of the kettle body and is connected to the air film thickness control component, the other end of the moving rod is connected to a floating block, the floating block is provided above the test position, and the displacement sensor and the tensile gauge are both connected to the moving rod.
2. A measuring device for porous materials according to claim 1, characterized in that: The bottom area of the floating block is 65% to 95% of the surface area of the material to be measured.
3. A measuring device for porous materials according to claim 1, characterized in that: An annular seal and a porous material fixed end cover are arranged in the kettle body, and the test is located between the annular seal and the porous material fixed end cover.
4. A measuring device for porous materials according to claim 3, characterized in that: A first sealing groove is provided on a side of the annular sealing member facing the porous material fixing end cover, and a second sealing ring is provided in the first sealing groove and protrudes from the first sealing groove.
5. A measuring device for porous materials according to claim 3, characterized in that: A step structure is provided between the annular seal and the porous material fixed end cover, the step structure includes an annular step provided on the annular seal and an annular protrusion structure provided on the porous material fixed end cover, and the test position is provided between the annular step and the annular protrusion structure.
6. A measuring device for porous materials according to claim 3, characterized in that: The test position is arranged at the middle part of the annular seal; and a first sealing ring is arranged on the contact surface between the annular seal and the kettle body.
7. A measuring device for porous materials according to claim 1, characterized in that: A displacement sensor connecting block is provided at the upper end of the moving rod, and the displacement sensor is connected to the displacement sensor connecting block. The air film thickness measurement assembly also includes a displacement sensor bracket, and the displacement sensor bracket is provided with a protrusion structure. The displacement sensor connecting block is provided with a groove structure adapted to the protrusion structure, and the cooperation between the protrusion structure and the groove structure realizes the connection and positioning of the displacement sensor bracket and the displacement sensor connecting block.
8. A measuring device for porous materials according to claim 7, characterized in that: The displacement sensor brackets are provided with four groups, and the four groups of displacement sensor brackets are distributed in a cross shape in the circumferential direction of the moving rod.
9. A measuring device for porous materials according to claim 1, characterized in that: The porous material measuring device further comprises a tension gauge bracket, the tension gauge is arranged on the tension gauge bracket, the tension gauge is connected to the top of the moving rod, and the tension gauge bracket is connected to the air film thickness control component.
10. A measuring device for porous materials according to claim 9, characterized in that: The air film thickness control component includes a Z-axis lifting module and an XYZ slide. The Z-axis lifting module is provided with an adapter plate, the XYZ slide is arranged on the adapter plate, and the XYZ slide is connected to the dynamometer bracket through a T-shaped support plate.