Uniaxial compression instrument for vacuum adsorption of sample in temperature and humidity control environment

Abstract

The utility model discloses a uniaxial compression instrument for vacuum adsorption of a sample in a temperature and humidity control environment, which relates to the technical field of material testing equipment and comprises a temperature and humidity control box, a vacuum adsorption device, a uniaxial compression device and a control system. Real-time monitoring and feedback are achieved through the multiple temperature sensors, and the temperature adjusting range is wide. An ultrasonic humidifier is adopted in the humidity control system, the humidity in the box can be rapidly and evenly adjusted, and accurate control is achieved through a humidity sensor. The vacuum adsorption device generates negative pressure through a vacuum pump, stably adsorbs the sample and avoids displacement. The uniaxial compression device is driven by a servo motor, compression force and displacement are monitored in real time through a sensor, and the experiment precision is ensured. The mechanical testing device is simple in structure, can be independently detached and conveniently replaced due to the modularized structure, is stable in performance, and is suitable for mechanical testing of various materials.

Description

TECHNICAL FIELD

[0001] The utility model relates to material testing equipment technical field especially is related to a kind of single-shaft compression instrument for vacuum adsorption sample under temperature and humidity control environment. BACKGROUND

[0002] In the fields of material science, biological engineering, chemical engineering and mechanical engineering, the testing of physical and chemical properties of materials under specific environmental conditions is crucial. Especially in the development of new materials, quality control and research process, it is essential to simulate the influence of different environmental conditions (such as temperature, humidity, etc.) on material performance. Traditional material testing equipment often lacks precise control of testing environmental conditions, especially when temperature and humidity need to be controlled simultaneously, which limits their application range and testing accuracy. Existing single-shaft compression testing equipment usually does not have environmental control function, or only provides very basic temperature or humidity adjustment options. In addition, the fixation of samples during testing usually relies on mechanical clamps, which may cause movement or sliding of samples during force application, affecting the accuracy and repeatability of test results. SUMMARY

[0003] The utility model aims at providing a single-shaft compression testing instrument that combines temperature and humidity control and vacuum adsorption sample fixation function to overcome the shortcomings of the prior art. Through this equipment, users can perform mechanical property testing on various materials under precisely controlled temperature and humidity conditions, while ensuring the stability of samples and the consistency of testing. This design aims to meet the needs of complex environment simulation and accurate mechanical testing in high-tech material research and development, and provides important technical support for research and application in the field of material science and engineering.

[0004] To solve the above technical problems, the utility model adopts the following scheme: a single-shaft compression instrument for vacuum adsorption sample under temperature and humidity control environment, comprising:

[0005] A single-shaft compression device, including a pressure head, the pressure head is driven by a servo motor to move up and down along the axis, the bottom of the pressure head is provided with a pressure sensor for testing the force of the test piece and a displacement sensor for measuring displacement;

[0006] A temperature and humidity control box, the inner top of the temperature and humidity control box is provided with a hollow heat conduction rod, the single-shaft compression device is connected with the hollow heat conduction rod through stable screws, and it is fixedly installed in the temperature and humidity control box, two fans are arranged at the front of the temperature and humidity control box, and a plurality of temperature sensors and humidity sensors are arranged at the bottom of the temperature and humidity control box;

[0007] A temperature control system comprises a temperature controller and an electric heating wire, the electric heating wire is installed on the inner wall of the hollow heat conducting rod to heat it, and a relay is arranged on the outer wall of the hollow heat conducting rod, the temperature controller, the electric heating wire and the relay are electrically connected;

[0008] A vacuum adsorption device comprises an adsorption table and a vacuum pump, the adsorption table is fixedly installed on the bottom inner side of the temperature and humidity control box and communicates with the vacuum pump, and the top of the adsorption table is provided with a plurality of adsorption holes for vacuum adsorption of test pieces.

[0009] A humidity control system is arranged at the bottom of the adsorption table, and the humidity control system adopts a ring-shaped ultrasonic humidifier to adjust the humidity in the temperature and humidity control box.

[0010] A control system is electrically connected with the single-axis compression device, the temperature control system, the humidity control system, and temperature and humidity sensors in the temperature and humidity control box, respectively, for controlling and adjusting the temperature and humidity environment in the temperature and humidity control box.

[0011] Preferably, the material of the temperature and humidity control box is alumina transparent ceramic, and the bottom of the temperature and humidity control box is provided with a buffer material.

[0012] Preferably, the hollow heat conducting rod is provided with two, one end of which penetrates through the top of the temperature and humidity control box, and the other end is fixedly connected with the bottom of the temperature and humidity control box.

[0013] Preferably, the electric heating wire is electrically connected with the control system, and the material of the electric heating wire is copper-nickel alloy.

[0014] Preferably, the temperature control system controls the temperature in the temperature and humidity control box through the electric heating wire, and the control temperature ranges from room temperature to 100 DEG C.

[0015] Preferably, a hollow cylindrical support mechanism is arranged directly below the adsorption table, a reel type switch is arranged on one side of the adsorption table, the ring-shaped ultrasonic humidifier is installed in the hollow cylindrical support mechanism, and the ring-shaped ultrasonic humidifier is taken out freely through the reel type switch.

[0016] Preferably, the humidity control system controls the humidity in the range of 0% to 95% relative humidity.

[0017] Preferably, the vacuum pump is electrically connected with the control system to monitor and adjust the vacuum degree.

[0018] Preferably, the overall structure of the single-axis compression instrument adopts modular design, and each module can be replaced independently according to experimental requirements.

[0019] Therefore, the single-axis compression instrument for vacuum adsorption of samples under temperature and humidity control environment has the following beneficial effects compared with the prior art.

[0020] The vacuum adsorption device generates negative pressure through the vacuum pump to stably adsorb the sample and avoid displacement. The environment in the temperature and humidity control box can be automatically controlled through the control system. The temperature and humidity control system can automatically adjust according to the data of the environment in the box transmitted by the temperature sensor and the humidity sensor. The ring-shaped ultrasonic humidifier is arranged below the vacuum adsorption table. The ring-shaped ultrasonic humidifier can be taken out for water replenishment through the reel-type switch without affecting the operation of the vacuum table, and the ring-shaped ultrasonic humidifier is convenient to replace and clean. The single-axis compression instrument for vacuum adsorption of samples under temperature and humidity control environment has the advantages of simple structure, stable performance, and is suitable for mechanical testing of various materials. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 Figure 1 is a schematic view of the overall structure of the single-axis compression instrument for vacuum adsorption of samples under temperature and humidity control environment according to the present application;

[0022] Figure 2 Figure 2 is a schematic view of the temperature and humidity control box structure of the single-axis compression instrument for vacuum adsorption of samples under temperature and humidity control environment according to the present application;

[0023] Figure 3 Figure 3 is a schematic view of the adsorption table and humidity control system structure of the single-axis compression instrument for vacuum adsorption of samples under temperature and humidity control environment according to the present application;

[0024] Figure 4 Figure 4 is a schematic view of the upper structure of the single-axis compression device of the single-axis compression instrument for vacuum adsorption of samples under temperature and humidity control environment according to the present application.

[0025] Reference signs:

[0026] 1, temperature and humidity control box; 2, temperature control system; 21, hollow heat conduction rod; 22, heating wire; 23, relay; 3, single-axis compression device; 31, pressure head; 32, displacement sensor; 33, pressure sensor; 4, fan; 5, stabilizing screw; 6, humidity control system; 61, ring-shaped ultrasonic humidifier; 7, vacuum adsorption device; 71, adsorption table; 72, vacuum pump; 73, adsorption hole; 74, hollow cylindrical support mechanism; 8, control system; 9, electric wire; 10, temperature sensor; 11, humidity sensor; 12, reel-type switch. DETAILED DESCRIPTION

[0027] The technical scheme of the present application is further described below through the drawings and examples.

[0028] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are merely used to distinguish different components. The terms "comprise", "include" and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "connect" or "connected" and similar terms do not mean only physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are merely used to indicate relative positional relationships, which can change accordingly when the absolute positions of the described objects change.

[0029] Embodiment

[0030] Please refer to Figures 1-4 The present application provides a single-axis compression instrument for vacuum adsorption samples in a temperature and humidity controlled environment, comprising: a temperature and humidity control box 1, a temperature control system 2, a humidity control system 6, a vacuum adsorption device 7, a single-axis compression device 3 and a control system 8, wherein the single-axis compression device 3 comprises a pressure head 31, the pressure head 31 is driven by a servo motor to move up and down along the axis, the bottom of the pressure head 31 is provided with a pressure sensor 33 for detecting the force of the test piece and a displacement sensor 32 for measuring displacement, and the data is transmitted to the control system 8 for processing and recording.

[0031] A hollow heat conduction rod 21 is arranged on the inner top of the temperature and humidity control box 1, one end of the two hollow heat conduction rods passes through the top of the temperature and humidity control box 1, and the other end is fixedly connected with the bottom of the temperature and humidity control box 1. The single-axis compression device 3 is connected with the hollow heat conduction rod 21 through a stable screw 5, so as to be fixedly installed in the temperature and humidity control box 1; three holes are opened above the temperature and humidity control box 1, so as to facilitate the entry of the two high-hardness hollow heat conduction rods 21 and the single-axis compression device 3, two fans 4 are arranged at the front and rear, the area behind the fan 4 can be controlled to be opened, a single door (not shown in the figure) is arranged at the front, the door can be opened to place materials, clean the box, etc., a hole is arranged below the control box to fixedly connect the adsorption table 71, a plurality of temperature sensors 10 and humidity sensors 11 are arranged on the inner side of the bottom of the temperature and humidity control box 1 to monitor the change of the temperature and humidity environment in the box in real time, the material of the temperature and humidity control box 1 is alumina transparent ceramic, which has high temperature stability, excellent transparency, good chemical stability, high hardness and wear resistance, good heat insulation performance, can be used for a long time in different extreme environments, and the state of the sample can be observed without opening the environment box; a buffer material is arranged on the bottom of the temperature and humidity control box 1 to buffer the pressure and support the box body.

[0032] The temperature control system 2 comprises a temperature controller and an electric heating wire 22, the electric heating wire 22 is installed on the inner wall of the hollow heat-conducting rod 21 to heat it, and a relay 23 is arranged on the outer wall of the hollow heat-conducting rod 21, the temperature controller, the electric heating wire 22 and the relay 23 are electrically connected, the material of the electric heating wire 22 is copper-nickel alloy, the temperature control system 2 is connected with the electric heating wire 22 and the control system 8 through the electric wire 9 and the relay 23, and the controllable temperature range is room temperature to 100 DEG C, which is suitable for the mechanical property test of materials in different environments.

[0033] The vacuum adsorption device 7 comprises an adsorption table 71 and a vacuum pump 72, the adsorption table 71 is fixedly installed on the bottom inner side of the temperature and humidity control box 1 and is communicated with the vacuum pump 72, the vacuum degree of the vacuum pump 72 is monitored and adjusted by electrically connecting the vacuum pump 72 with the control system 8. A plurality of adsorption holes 73 for vacuum adsorption of test pieces are arranged on the top of the adsorption table 71, the vacuum adsorption device 7 generates negative pressure through the vacuum pump 72 to stably adsorb the test sample and avoid displacement.

[0034] The humidity control system 6 is arranged at the bottom of the adsorption table 71, a hollow cylindrical support mechanism 74 is arranged directly below the adsorption table 71, a reel type switch 12 is arranged on one side of the adsorption table 71, and a ring-shaped ultrasonic humidifier 61 is installed in the hollow cylindrical support mechanism 74 and can be taken out freely through the reel type switch 12. The humidity control system 6 adopts the ring-shaped ultrasonic humidifier 61 to adjust the humidity in the temperature and humidity control box 1, can atomize water into small particles, and can make the humidity in the box distribute quickly and uniformly. The humidity control system 6 monitors the humidity change in real time through the humidity sensor 11 and transmits data to the control system 8 to ensure accurate control of the humidity, the humidity range is 0% to 95% relative humidity, and the humidity can be adjusted according to different experimental requirements.

[0035] The control system 8 comprises a display screen and a data acquisition module, the display screen is used for real-time display of experimental parameters, including temperature, humidity, vacuum degree, compression force and displacement; the data acquisition module is used for recording all parameter changes in the experimental process and is connected with an external computer or a database system through an interface, so that subsequent data analysis and processing are facilitated. The control system 8 is electrically connected with the single-axis compression device 3, the temperature control system 2, the humidity control system 6, the temperature sensor 10 and the humidity sensor 11 in the temperature and humidity control box 1 respectively, is used for realizing accurate control of the environment in the temperature and humidity control box 1 and maintaining stability in the experimental process. In the embodiment, the overall structure of the single-axis compression instrument adopts a modular design, installation, disassembly and maintenance are facilitated, and each module can be replaced independently according to experimental requirements.

[0036] Working principle: when carrying out compression test, through control system 8 opens temperature control system 2 and imports specific temperature value, electric heating wire 22 will heat to the value rapidly, so that the temperature and humidity control box 1 rapidly heats to the required temperature environment, through control system 8 opens humidity control system 6, imports the required humidity, and control annular ultrasonic humidifier 61 will work rapidly, sprays water mist and makes the temperature and humidity control box 1 humidity reach the set value, through control system 8 opens single-shaft compression device 3, imports the required pressure value, makes that the pressure head 31 uniform speed presses down, through control system 8 opens vacuum adsorption device 7, imports appropriate vacuum degree, and vacuum pump 72 starts work, makes the vacuum platform firmly suck the object, the above experiment can be through display screen real-time display experimental parameter, including temperature, humidity, vacuum degree, compression force and displacement, realizes the accurate control of the environment in temperature and humidity control box 1, effectively guarantees the test precision.

[0037] Therefore, the real-time monitoring and feedback data of multiple temperature sensors and humidity sensors in the temperature and humidity control box can be obtained in the utility model, and the environment in the temperature and humidity control box is accurately controlled through the control system, the vacuum adsorption device of the instrument generates negative pressure through the vacuum pump, and the sample is stably adsorbed to avoid displacement of the test piece, thereby effectively improving the test precision of the test piece.

[0038] Finally, it should be noted that: the above examples are only used to illustrate the technical scheme of the utility model and not to limit it, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical scheme of the utility model can still be modified or replaced, and these modifications or replacements cannot make the modified technical scheme deviate from the spirit and scope of the utility model technical scheme.

Claims

1. A uniaxial compression apparatus for vacuum-sorbed samples in a temperature and humidity controlled environment, characterized by, The utility model relates to a single -axis compression device, including the pressure head that is driven by servo motor makes it go up and down along the axis, the bottom of pressure head is provided with the pressure sensor for detecting the stress of test piece and the displacement sensor for measuring displacement, the utility model relates to a temperature and humidity control box, the inner top of temperature and humidity control box is provided with hollow heat conduction rod, single -axis compression device is connected with hollow heat conduction rod through stable screw, realizes its fixed mounting in temperature and humidity control box, the back of temperature and humidity control box is provided with two fans, and the bottom of temperature and humidity control box is provided with a plurality of temperature sensors and humidity sensors, the utility model relates to a temperature control system, including temperature control instrument and heating wire, heating wire is installed on the inner wall of hollow heat conduction rod and is heated, and is provided with relay on its outer wall, temperature control instrument, heating wire and relay are electrically connected, the utility model relates to a vacuum adsorption device, including adsorption platform and vacuum pump, adsorption platform is fixedly installed in the bottom inboard of temperature and humidity control box and communicates with vacuum pump, and the top of adsorption platform is provided with a plurality of adsorption holes for vacuum adsorption test piece, the utility model relates to a humidity control system, which is arranged at the bottom of the adsorption platform, and the humidity control system adopts a ring-shaped ultrasonic humidifier to adjust the humidity in the temperature and humidity control box, the utility model relates to a control system, which is electrically connected with the single -axis compression device, temperature control system, humidity control system and temperature sensor and humidity sensor in the temperature and humidity control box respectively, and is used for controlling and adjusting the temperature and humidity environment in the temperature and humidity control box. The material of the temperature and humidity control box is alumina transparent ceramic, and the bottom of the temperature and humidity control box is provided with a buffer material. The hollow heat conduction rod is provided with two ends, one end penetrates through the top of the temperature and humidity control box, and the other end is fixedly connected with the bottom of the temperature and humidity control box. The heating wire is electrically connected with the control system, and the material of the heating wire is copper-nickel alloy. The temperature control system controls the temperature in the temperature and humidity control box through the heating wire, and the control temperature range is room temperature to 100 DEG C. A hollow cylindrical support mechanism is arranged below the adsorption platform, a reel type switch is arranged on one side of the adsorption platform, the ring-shaped ultrasonic humidifier is installed in the hollow cylindrical support mechanism, and the ring-shaped ultrasonic humidifier is taken out freely through the reel type switch. The humidity control system controls the relative humidity in the range of 0% to 95%.

2. The uniaxial compression apparatus for vacuum-suspending a sample in a temperature and humidity controlled environment according to claim 1, wherein: The vacuum pump is electrically connected with the control system to monitor and adjust the vacuum degree.

3. The uniaxial compression apparatus for vacuum-adsorbed samples in a temperature and humidity controlled environment according to claim 2, wherein: The overall structure of the single-axis compression instrument adopts modular design, and each module can be replaced independently according to experimental requirements.

4. The uniaxial compression apparatus for vacuum-adsorbed samples in a temperature and humidity controlled environment according to claim 3, wherein: ​ 5. The uniaxial compression apparatus for vacuum-adsorbed samples in a temperature and humidity controlled environment according to claim 4, wherein: ​ 6. The uniaxial compression apparatus for vacuum-adsorbed samples in a temperature and humidity controlled environment according to claim 5, wherein: ​ 7. The uniaxial compression apparatus for vacuum-adsorbed samples in a temperature and humidity controlled environment of claim 6, wherein: ​ 8. The uniaxial compression apparatus for vacuum-adsorbed samples in a temperature and humidity controlled environment according to claim 7, wherein: ​ 9. The uniaxial compression apparatus for vacuum-adsorbed samples in a temperature- and humidity-controlled environment according to claim 8, wherein: ​

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