A device for testing water absorption performance of silicone rubber materials

Abstract

The present invention provides a device for testing the water absorption performance of a silicone rubber material, and belongs to the field of material testing devices. The device for testing the water absorption performance of a silicone rubber material comprises a sealing component and an environmental access mechanism connected to the sealing component; a clamping component is arranged inside the sealing component, and the clamping component comprises a rotating table, a steering member and a clamping member arranged in sequence, the length of the steering member can be adjusted, and the steering member is used to control the angle between the axis of the clamping member and the axis of the rotating table. The device for testing the water absorption performance of a silicone rubber material achieves strict environmental condition control when testing the water absorption performance of the silicone rubber material through the arrangement of the sealing component, the clamping component and the environmental access mechanism, so that the silicone rubber can be placed in a variable application environment and obtain comprehensive and reliable test results.

Description

Technical Field

[0001] The invention belongs to the field of material testing devices, and in particular relates to a silicone rubber material water absorption performance testing device. Background Art

[0002] Silicone rubber is a man-made material made by connecting two organic groups to the silicon atoms of the rubber. Based on the introduction of organic groups, it can achieve many different physical and chemical properties. Therefore, it has different usage scenarios in many fields, such as silicone rubber insulators used in power grid power supply systems, building sealants used in the construction field, and conductive buttons and insulating silicone rubber water used in the field of electronic equipment.

[0003] Therefore, in the research and development and production of silicone rubber, based on the production and use of silicone rubber, it is necessary to test the water absorption of silicone rubber materials. For example, the Chinese invention patent with application publication number CN107449687A discloses a device for testing the water absorption of silicone rubber under stress conditions. However, the device requires the sample to be tested to be immersed in an aqueous test liquid. The stress conditions and environmental changes are very simple, and it is impossible to test the stability of the performance of silicone rubber in response to various environmental changes, nor can it assist R&D personnel in eliminating the impact of various environmental factors on it. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a testing device capable of detecting the water absorption performance of silicone rubber materials under different forces and different environments.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a device for testing the water absorption performance of a silicone rubber material, comprising a sealing component and an environmental access mechanism connected to the sealing component;

[0006] A clamping assembly is provided in the sealing assembly, and the clamping assembly includes a rotating table, a steering member and a clamping member which are arranged in sequence. The length of the steering member can be adjusted, and the steering member is used to control the angle between the axis of the clamping member and the axis of the rotating table.

[0007] The beneficial effects of the present invention are as follows: a silicone rubber material water absorption performance testing device provided by the present invention realizes strict environmental condition control when testing the water absorption performance of the silicone rubber material through the setting of a sealing component, a clamping component and an environmental access mechanism, and the setting of the environmental access mechanism can be easily replaced and increased or decreased. During the test experiment, multiple environmental variables are effectively and strictly regulated, so that the silicone rubber can be placed in a variable application environment, and a comprehensive and reliable test result can be obtained through the control of variables. Compared with traditional water absorption performance testing devices, the device has a more complete and conveniently changeable environmental factor control capability and is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Shown is a cross-sectional view of a device for testing water absorption performance of a silicone rubber material according to a specific embodiment of the present invention;

[0009] Figure 2 Shown is a partial structural schematic diagram of a silicone rubber material water absorption performance testing device according to a specific embodiment of the present invention;

[0010] Figure 3 It is a schematic structural diagram of a clamping assembly of a device for testing the water absorption performance of a silicone rubber material according to a specific embodiment of the present invention;

[0011] Figure 4 It is a structural schematic diagram of the environment access mechanism of the silicone rubber material water absorption performance testing device according to a specific embodiment of the present invention;

[0012] Figure 5 The figure shows a schematic diagram of the distribution of the positioning members and the fixing plate of the silicone rubber material water absorption performance testing device according to a specific embodiment of the present invention;

[0013] Description of reference numerals: 1. sealing assembly; 2. main sealing housing; 201. environmental access port; 202. main sealing ear; 203. positioning member;

[0014] 3. Auxiliary sealing housing; 301. Auxiliary sealing ear;

[0015] 4. Environmental access mechanism; 401. Sealing plug; 402. Environmental control element;

[0016] 5. Sealing ring;

[0017] 6. Sealing mechanism; 601. Locking member; 602. Fixing plate; 6021. Connecting rod;

[0018] 7. Tensile force measuring device;

[0019] 8. Support frame; 801. Support platform; 802. Platform adjustment member;

[0020] 9. Telescopic parts;

[0021] 10. Clamping assembly; 1001. Rotating table; 1002. Steering member; 1003. Clamping member. DETAILED DESCRIPTION

[0022] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0023] The most critical concept of the present invention is that through the setting of the sealing component, the clamping component and the environmental access mechanism, strict environmental condition control is achieved when the water absorption performance of the silicone rubber material is tested, so that the silicone rubber can be placed in a variable application environment and a comprehensive and reliable test result can be obtained.

[0024] Please refer to Figures 1 to 5 As shown, a silicone rubber material water absorption performance testing device of the present invention comprises a sealing component and an environment access mechanism connected to the sealing component, the sealing component is provided with an environment access port, and the sealing component is connected to the environment access mechanism through the environment access port;

[0025] A clamping assembly is provided in the sealing assembly, and the clamping assembly includes a rotating table, a steering member and a clamping member arranged in sequence. The length of the steering member can be adjusted, and the steering member is used to control the angle between the axis of the clamping member and the axis of the rotating table.

[0026] From the above description, it can be seen that the beneficial effect of the present invention lies in that the environmental access mechanism is used to create a test environment inside the sealing component, which can be replaced according to needs. By replacing, different environmental variables can be introduced, so as to carry out water absorption performance tests under different environmental variables (for example, simulating the radiation environment outside the atmosphere and inside special facilities, corrosive environment in special use scenarios, etc.); the clamping member is used to clamp the silicone rubber material, and the clamping member can apply tension, torque and other forces to the silicone rubber under the action of the rotating table and the steering member to determine the influence of the force under different environmental conditions.

[0027] Through the setting of sealing components, clamping components and environmental access mechanisms, strict environmental condition control is achieved when testing the water absorption performance of silicone rubber materials. The environmental access mechanisms can be easily replaced and increased or decreased, and multiple environmental variables can be effectively and strictly regulated during the test experiment, so that silicone rubber can be placed in a variable application environment. Through the control of variables, a comprehensive and reliable test result can be obtained. Compared with traditional water absorption performance testing devices, it has more complete and convenient environmental factor control capabilities and is more efficient.

[0028] Furthermore, two clamping assemblies arranged opposite to each other are provided in the sealing assembly.

[0029] From the above description, it can be seen that the two clamping components clamp the two ends of the silicone rubber material respectively and apply uniform tension and torsional force thereto.

[0030] Further, the clamping assembly includes at least two symmetrically arranged steering members.

[0031] It can be seen from the above description that at least two symmetrically arranged steering members can support the clamping member to perform steering smoothly.

[0032] Furthermore, a tension measuring device and a support frame are provided in the sealing assembly, and the support frame is connected to the sealing assembly via the tension measuring device.

[0033] From the above description, it can be known that the increased gravity of the rubber material after absorbing water is transmitted to the tension measuring device through the support frame, thereby testing the water absorption performance.

[0034] Furthermore, the support frame includes two supporting platforms arranged opposite to each other and at least two platform adjusting members, one of the supporting platforms is connected to the tension measuring device, and the platform adjusting member is used to control the distance between the two supporting platforms; the clamping assembly is located in the support frame; the platform adjusting member is a hydraulic rod, a push rod or a telescopic rod, etc.;

[0035] The two clamping assemblies are respectively arranged on the two supporting platforms.

[0036] From the above description, it can be seen that the tension measuring device includes a sensor element, which is used to obtain the gravity change of the clamping assembly through the sensor element. The function of the support frame is to integrate a pair of clamping assemblies into a whole to facilitate the tension measuring device to measure the gravity change of the silicone rubber. The spacing between a pair of support platforms can be controlled by the platform adjustment member, so as to adapt to more silicone rubber materials of different sizes.

[0037] Furthermore, a telescopic member is provided between the support platform connected to the tension measuring device and the clamping assembly, and the telescopic member is telescopic along the axial direction of the rotating table; the telescopic member can be a hydraulic rod, a push rod or a telescopic rod.

[0038] As can be seen from the above description, the telescopic member is used to apply external force to the silicone rubber material by controlling the distance between the clamping components.

[0039] Furthermore, the sealing assembly includes a main sealing shell and a secondary sealing shell. The main sealing shell is provided with a main sealing ear coplanar with the opening at the edge position of the opening side, and the secondary sealing shell is provided with at least two secondary sealing ears at the edge position of the opening side. The secondary sealing ears are arranged at intervals along the circumference of the secondary sealing shell.

[0040] From the above description, it can be seen that, because during the experimental test, when the environmental conditions change (especially the temperature and air pressure), in order to ensure the accuracy of the experimental data, it is necessary to meet the requirements for sealing.

[0041] When the main sealing shell is engaged with the auxiliary sealing shell, the main sealing ear and the auxiliary sealing ear are tightly fitted to form a closed space isolated from the outside of the sealing assembly.

[0042] Furthermore, the cross section of the secondary sealing ear is fan-shaped, and the cross section of the main sealing ear is ring-shaped.

[0043] It can be seen from the above description that after sealing, the secondary sealing ear overlaps with the main sealing ear, and the secondary sealing ear is not easily damaged by collision during transportation.

[0044] Further, it also includes a sealing mechanism;

[0045] Please refer to Figure 2 As shown, the sealing mechanism includes a locking member and a fixing plate; the fixing plate includes a connecting rod, which passes through the main sealing ear and the auxiliary sealing ear in sequence and is connected to the locking member to lock the main sealing ear and the auxiliary sealing ear. The connecting rod is threadedly connected to the main sealing ear, and the locking member is threadedly connected to the connecting rod.

[0046] Furthermore, the fixing plate is a fan ring structure corresponding to the secondary sealing ear.

[0047] It can be seen from the above description that the locking member is rotatably matched with the fixing plate to control the distance between the fixing plate and the main sealing ear, thereby locking the main sealing ear and the auxiliary sealing ear.

[0048] Furthermore, support rods are provided on both sides of the connecting rod.

[0049] It can be seen from the above description that the support rod plays a guiding role, so that the fixing plate and the main sealing ear are arranged parallel to each other after locking.

[0050] Furthermore, a positioning piece is provided on the lower surface of the main sealing ear, and the positioning piece is spaced apart from the auxiliary sealing ear.

[0051] Furthermore, the positioning piece is fixedly connected to the main sealing ear, and the inner diameter of the positioning piece is greater than the outer diameter of the auxiliary sealing ear.

[0052] From the above description, it can be known that the locking of the seal is achieved by cooperating with the locking piece and the secondary sealing ear. During use, when the main sealing shell and the secondary sealing shell are matched, the secondary sealing ear passes through the positioning piece to achieve the fit between the edges of the main sealing shell and the secondary sealing shell. At this time, the main sealing shell is rotated to stagger the secondary sealing ear and the positioning piece. First, the fixing plate is rotated to make the connecting rod pass through the secondary sealing ear and the main sealing ear and make the fixing plate fit with the secondary sealing ear. Then, the locking piece is rotated to fix the fixing plate.

[0053] Furthermore, sealing rings are provided between the main sealing ear and the auxiliary sealing ear, and between the environment access mechanism and the surface of the main sealing shell.

[0054] From the above description, it can be seen that the sealing ring can reduce friction and obtain a better sealing effect.

[0055] Please refer to Figure 4 As shown, further, the environment access mechanism includes a sealing plug and an environment control member, the sealing plug is located on the outer surface of the environment control member, and the sealing plug is threadedly connected to the environment access port.

[0056] From the above description, it can be seen that the environmental access mechanism can be replaced at will, and the sealing connection with the main sealing shell is achieved through the sealing bolt. The environmental control component can control the temperature, humidity, air pressure, pH value, pressure and other factors in the sealing component, simulate the radiation environment outside the atmosphere and inside special facilities, and the corrosive environment in special use scenarios.

[0057] Please refer to Figures 1 to 5 As shown, the first embodiment of the present invention is:

[0058] A device for testing the water absorption performance of a silicone rubber material comprises a sealing mechanism 6, a sealing component 1 and an environment access mechanism 4 connected to the sealing component 1. The sealing component 1 is provided with an environment access port 201, and the sealing component 1 is connected to the environment access mechanism 4 through the environment access port 201.

[0059] The sealing assembly 1 is provided with a tension measuring device 7, a support frame 8 and two clamping assemblies 10 arranged opposite to each other. The support frame 8 includes two supporting platforms 801 arranged opposite to each other and at least two platform adjusting members 802, the platform adjusting members 802 are hydraulic rods, one of the supporting platforms 801 is connected to the tension measuring device 7, and the platform adjusting members 802 are used to control the distance between the two supporting platforms 801; the two clamping assemblies 10 are located in the support frame 8 and arranged on the two supporting platforms 801, and a telescopic member 9 is provided between the supporting platform 801 connected to the tension measuring device 7 and the clamping assembly 10, and the telescopic member 9 is a hydraulic rod, and the telescopic member 9 is telescopic along the axial direction of the rotating table 1001. Each clamping assembly 10 includes a rotating table 1001, a clamping member 1003 and four steering members 1002 arranged in sequence, the length of the steering member 1002 can be adjusted, and the steering member 1002 is used to control the angle between the axis of the clamping member 1003 and the axis of the rotating table 1001.

[0060] The sealing assembly 1 comprises a main sealing housing 2 and a secondary sealing housing 3. The main sealing housing 2 is provided with a main sealing ear 202 coplanar with the opening at the edge of the opening side. The secondary sealing housing 3 is provided with at least two secondary sealing ears 301 at the edge of the opening side. The cross section of the secondary sealing ear 301 is fan-shaped, and the cross section of the main sealing ear 202 is annular. The secondary sealing ears 301 are arranged at intervals along the circumference of the secondary sealing housing 3. A positioning member 203 is provided on the lower surface of the main sealing ear 202. The positioning member 203 is arranged at intervals from the secondary sealing ear 301. The positioning member 203 is fixedly connected to the main sealing ear 202. The inner diameter of the positioning member 203 is greater than the outer diameter of the secondary sealing ear 301.

[0061] The sealing mechanism 6 includes a locking member 601 and a fixing plate 602; the fixing plate 602 includes a connecting rod 6021, which sequentially passes through the primary sealing ear 202 and the secondary sealing ear 301 and is connected to the locking member 601 to lock the primary sealing ear 202 and the secondary sealing ear 301. The connecting rod 6021 is threadedly connected to the primary sealing ear 202, and the locking member 601 is threadedly connected to the connecting rod 6021. The fixing plate 602 is a fan ring structure corresponding to the secondary sealing ear 301.

[0062] The environment access mechanism 4 includes a sealing plug 401 and an environment control member 402. The environment control member 402 controls the temperature, humidity, air pressure, pH value and pressure in the sealing assembly 1. The sealing plug 401 is located on the outer surface of the environment control member 402. The sealing plug 401 is threadedly connected to the environment access port 201. A sealing ring 5 is provided between the main sealing ear 202 and the auxiliary sealing ear 301, and between the environment access mechanism 4 and the surface of the main sealing housing 2.

[0063] The nozzle structure is used to test the water absorption performance.

[0064] In summary, the silicone rubber material water absorption performance testing device provided by the present invention is different from the prior art in that the environmental variables can be adjusted and replaced at will, and also includes a water absorption testing method for silicone rubber. In the prior art, the water absorption test of silicone rubber is mostly carried out by immersion, but silicone rubber is used in a wide range of scenarios. In some scenarios, it is not directly immersed in water for use, and the immersion test method will isolate the silicone rubber from the air, so that the gas environmental variables are covered by water. Therefore, it is impossible to simulate the changes in water absorption performance in non-immersion scenarios in actual use. Through the setting of the environmental access mechanism 4, the present device can adopt atomization spraying or air humidity control to more intuitively simulate the use environment, achieve a more reliable, effective and reliable test effect, and be installed in the environmental access port 201.

[0065] After the test starts, the environmental access mechanism 4 controls the environmental factors according to the needs, and records the gravity changes of the silicone rubber through the tension measuring device 7, so as to reflect the changes in the water absorption capacity. At the same time, the clamping member 1003 can apply various forces such as tension and torsion to the silicone rubber under the action of the rotating table 1001 and the steering member 1002 to determine the influence of the force on the water absorption performance of the silicone rubber material under different environmental conditions.

[0066] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A device for testing the water absorption performance of silicone rubber materials, characterized in that: including a sealing assembly and an environment access mechanism in communication with the sealing assembly; A clamping assembly is provided in the sealing assembly, and the clamping assembly includes a rotating table, a steering member and a clamping member arranged in sequence, the length of the steering member can be adjusted, and the steering member is used to control the angle between the axis of the clamping member and the axis of the rotating table; The sealing assembly comprises a main sealing shell and a secondary sealing shell. The main sealing shell is provided with a main sealing ear coplanar with the opening at the edge position of the opening side, and the secondary sealing shell is provided with at least two secondary sealing ears at the edge position of the opening side. The secondary sealing ears are arranged at intervals along the circumference of the secondary sealing shell.

2. The device for testing the water absorption performance of silicone rubber materials according to claim 1, characterized in that: Two clamping assemblies arranged opposite to each other are arranged in the sealing assembly.

3. The device for testing the water absorption performance of silicone rubber materials according to claim 1, characterized in that: The clamping assembly comprises at least two symmetrically arranged steering members.

4. The device for testing the water absorption performance of silicone rubber materials according to claim 1, characterized in that: A tension measuring device and a support frame are also provided in the sealing component, and the support frame is connected to the sealing component through the tension measuring device.

5. The device for testing the water absorption performance of silicone rubber materials according to claim 4, characterized in that: The support frame comprises two supporting platforms arranged opposite to each other and at least two platform adjusting members, one of the supporting platforms is connected to the tension measuring device, and the platform adjusting member is used to control the distance between the two supporting platforms; the clamping assembly is located in the support frame; The two clamping assemblies are respectively arranged on two supporting platforms.

6. The device for testing the water absorption performance of silicone rubber materials according to claim 5, characterized in that: A telescopic member is provided between the support platform connected to the tension measuring device and the clamping assembly, and the telescopic member is telescopic along the axial direction of the rotating table.

7. The device for testing the water absorption performance of silicone rubber materials according to claim 1, characterized in that: Also includes a sealing mechanism; The sealing mechanism comprises a locking member and a fixing plate; the fixing plate comprises a connecting rod, which passes through the main sealing ear and the auxiliary sealing ear in sequence and is connected to the locking member to lock the main sealing ear and the auxiliary sealing ear.

8. The device for testing the water absorption performance of silicone rubber materials according to claim 1, characterized in that: A positioning piece is provided on the lower surface of the main sealing ear, and the positioning piece is spaced apart from the auxiliary sealing ear.

9. The device for testing the water absorption performance of silicone rubber materials according to claim 1, characterized in that: Sealing rings are provided between the main sealing ear and the auxiliary sealing ear, and between the environment access mechanism and the surface of the main sealing shell.

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