CN219996839U

CN219996839U - Aging test device

Info

Publication number: CN219996839U
Application number: CN202320631408.3U
Authority: CN
Inventors: 孙爱兵; 吴博; 匡莉; 杨霄云; 庞承焕; 戴婷; 李卫领; 李建军; 陈平绪; 叶南飚
Original assignee: Guogao High Polymer Material Industry Innovation Center Co Ltd
Current assignee: Guogao High Polymer Material Industry Innovation Center Co Ltd
Priority date: 2023-03-27
Filing date: 2023-03-27
Publication date: 2023-11-10
Anticipated expiration: 2033-03-27

Abstract

The utility model relates to the field of material testing, and discloses an aging testing device which comprises a box body, an air supply assembly, an oxygenation assembly and an irradiation assembly, wherein the box body is provided with a plurality of air inlets; the box body is provided with a containing cavity, the containing cavity comprises an air chamber and an aging chamber, a partition plate is arranged between the air chamber and the aging chamber, and a communication hole is formed in the partition plate; the air supply assembly comprises a regulator, an air supply pipeline and an air supply driving piece; the oxygenation assembly comprises an oxygen bottle, an oxygen pipe, a flowmeter and an oxygenation driving piece; the air chamber is used for mixing the gas in the gas supply pipeline with the gas in the oxygen pipe. The air supply assembly and the oxygenation assembly supply air to the air chamber, the air chamber is mixed and then is filled with the ageing chamber, so that the oxygen content and uniformity of an experimental environment are improved, a test sample is subjected to irradiation ageing test in a high-oxygen environment, the ageing period of the material is shortened through the high-oxygen environment, the irradiation ageing test efficiency is improved, the ageing mechanism of the material is not influenced, and the accuracy of the test is ensured.

Description

Aging test device

Technical Field

The utility model relates to the field of material testing, in particular to an aging testing device.

Background

In the practical use process of the high polymer material, the high polymer material is gradually degraded due to the influence of environmental factors, so that the high polymer material is very important for testing the weather resistance of the high polymer material. At present, the weather resistance test of the material is mainly carried out by a manual aging accelerating mode, and in the test process, the aging of the material is accelerated by adopting a high irradiation intensity mode in order to shorten the period. Because the aging mechanisms of the high polymer materials in different irradiation intensity ranges are different, the irradiation intensity in the existing test process cannot be increased limitlessly and is required to meet the relevant test standard, so that the aging test period of the materials with the irradiation intensity specified by the standard is longer than one month or even several months, the test period is long, and the test efficiency is low.

Disclosure of Invention

The utility model aims to solve the technical problems that:

the material aging test period is long and the test efficiency is low.

In order to solve the above technical problems, the present utility model provides an aging test apparatus, including:

a case; the box body is provided with a containing cavity, the containing cavity comprises an air chamber and an aging chamber, a partition plate is arranged between the air chamber and the aging chamber for separation, a communication hole is formed in the partition plate, and the communication hole is communicated with the air chamber and the aging chamber;

the air supply assembly is connected with the box body; the air supply assembly comprises an adjuster, an air supply pipeline connected with the adjuster and an air supply driving piece connected with the air supply pipeline; the regulator is used for controlling the flow rate of the gas entering the gas supply pipeline;

the oxygenation assembly is connected with the box body; the oxygen adding component comprises an oxygen bottle, an oxygen tube connected with the oxygen bottle, a flowmeter arranged on the oxygen tube and an oxygen adding driving piece connected with the oxygen tube; a kind of electronic device with high-pressure air-conditioning system

The irradiation assembly is arranged in the aging chamber and is used for adjusting the irradiation intensity of the test sample;

wherein, the gas supply pipeline is communicated with the inside of the oxygen pipe and the air chamber.

In one embodiment, the gas supply driving member and the oxygen adding driving member are arranged on the inner side wall of the gas chamber in parallel.

In one embodiment, the irradiation assembly comprises a rotary driving member, a sample frame connected with the rotary driving member, and a light source member penetrating inside the sample frame.

In one embodiment, the rotary driving member is fixedly connected with the case, one end of the sample holder is connected with the rotary driving member, the other end of the sample holder is rotatably disposed on the case, the light source member is fixedly connected with the case, and the sample holder can rotate around the light source member.

In one embodiment, the regulator comprises a shell, a power piece fixed in the shell, a screw rod connected with the power piece and a valve body sleeved outside the screw rod; the shell is connected with the air supply pipeline, an air inlet is formed in the shell and is communicated with the inside of the shell and the inside of the air supply pipeline.

In one embodiment, the valve body is arranged in a conical structure, and the outer side surface of the valve body is gradually contracted from one end far away from the air inlet to one end close to the air inlet.

In one embodiment, the valve body is provided with a guide rod, the shell is provided with a guide groove, and the guide rod is correspondingly and slidably arranged in the guide groove.

In one embodiment, the guide rods are oppositely arranged at two sides of the valve body, and the guide rods at two sides are arranged in a mutually deviating way from the valve body; the guide groove is arranged in a strip-shaped structure, one end of the guide rod, which is far away from the valve body, is inserted into the guide groove, and the setting direction of the screw rod is the same as that of the guide groove.

In one embodiment, a pressure reducing valve is arranged at the interface position of the oxygen cylinder and the oxygen pipe.

In one embodiment, a central control component is arranged on the box body; the central control assembly comprises a display screen and a controller.

Compared with the prior art, the aging test device has the beneficial effects that:

the air supply assembly and the oxygenation assembly supply air to the air chamber, the air chamber is mixed and then is filled with the aging chamber, so that the oxygen content and uniformity of an experimental environment are improved, a test sample is subjected to irradiation aging test in a high-oxygen environment, the aging period of the material is shortened through the high-oxygen environment, and the irradiation aging test efficiency is improved; meanwhile, the mode of improving the efficiency is not a mode of increasing the irradiation intensity, so the irradiation intensity in the aging test process is still the irradiation intensity specified by the standard, the aging mechanism of the material is not affected, and the test accuracy is further ensured.

Drawings

FIG. 1 is a schematic diagram of an aging test apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of the regulator of FIG. 1;

fig. 3 is a schematic view of another angle of the regulator in fig. 1.

The meaning of the reference numerals in the drawings are:

100. an aging test device;

10. a case; 11. a receiving chamber; 12. a gas chamber; 13. an aging chamber; 15. a partition plate; 16. a communication hole; 17. a cover plate;

20. a gas supply assembly; 21. a regulator; 22. an air supply duct; 23. a gas supply driving member; 25. a housing; 251. an air inlet; 255. a guide groove; 26. a power member; 27. a screw; 28. a valve body; 285. a guide rod;

30. an oxygenation assembly; 31. an oxygen cylinder; 32. an oxygen pipe; 33. a flow meter; 34. an oxygenation driver; 35. a pressure reducing valve;

40. an irradiation assembly; 41. a rotary driving member; 42. a sample holder; 43. a light source member;

50. a central control assembly; 51. and a display screen.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, an aging testing apparatus 100 according to an embodiment of the present utility model includes a housing 10, a gas supply assembly 20 connected to the housing 10, an oxygen adding assembly 30 connected to the housing 10, and an irradiation assembly 40 disposed in the housing 10. The box body 10 is provided with a containing cavity 11, the containing cavity 11 comprises an air chamber 12 and an aging chamber 13, a partition plate 15 is arranged between the air chamber 12 and the aging chamber 13 for separation, a communication hole 16 is formed in the partition plate 15, and the communication hole 16 is communicated with the air chamber 12 and the aging chamber 13; the air supply assembly 20 includes a regulator 21, an air supply pipe 22 connected to the regulator 21, and an air supply driving member 23 connected to the air supply pipe 22; the regulator 21 is used to control the flow rate of the gas into the gas supply line 22; the oxygenation assembly 30 comprises an oxygen bottle 31, an oxygen tube 32 connected with the oxygen bottle 31, a flowmeter 33 arranged on the oxygen tube 32, and an oxygenation driving piece 34 connected with the oxygen tube 32; the irradiation assembly 40 is disposed within the aging chamber 13, and the irradiation assembly 40 is used to adjust the irradiation intensity of the test sample. The air supply pipeline 22 is communicated with the air chamber 12 inside the oxygen pipe 32, the air supply pipeline 22 is used for inputting air into the air chamber 12, the oxygen pipe 32 is used for inputting oxygen into the air chamber 12, the air chamber 12 is used for mixing the air in the air supply pipeline 22 with the air in the oxygen pipe 32, and therefore the oxygen content and uniformity of the air conveyed into the aging chamber 13 are improved, and oxidation of a test sample is accelerated.

According to the aging test device 100, the air supply assembly 20 and the oxygenation assembly 30 supply air to the air chamber 12, the air chamber 12 is mixed and then is introduced into the aging chamber 13, so that the oxygen content and uniformity of an experimental environment are improved, a test sample is subjected to irradiation aging test in a high-oxygen environment, the aging period of a material is shortened through the high-oxygen environment, and the irradiation aging test efficiency is improved; meanwhile, the irradiation intensity in the aging test process is the irradiation intensity specified by the standard because the mode of increasing the efficiency is not adopted, the aging mechanism of the material is not affected, and the test accuracy is further ensured.

Further, the case 10 is disposed in a rectangular structure, the accommodating cavity 11 is disposed in a rectangular groove structure, and the accommodating cavity 11 is used for providing a test environment for a test sample. The partition plate 15 is in a rectangular straight plate structure, the partition plate 15 is arranged in the accommodating cavity 11, the accommodating cavity 11 is divided into an air chamber 12 and an aging chamber 13 by the partition plate 15, and the air chamber 12 and the aging chamber 13 are oppositely arranged at two sides of the partition plate 15. In this embodiment, a cover plate 17 is disposed on the case 10, the cover plate 17 is pivotally connected to the case 10, the cover plate 17 is disposed in a rectangular straight plate structure, and the cover plate 17 is used for covering the accommodating cavity 11 to form a relatively airtight test environment.

Further, the communication hole 16 is formed in a circular through hole structure, and the communication hole 16 communicates with both sides of the partition 15 to ensure that the mixed gas in the gas chamber 12 is introduced into the aging chamber 13. In this embodiment, the communication holes 16 are arranged on the partition plate 15 in a rectangular array shape, so as to ensure that the gas in the gas chamber 12 is uniformly introduced into the aging chamber 13, further ensure that the oxygen concentration of the gas in the aging chamber 13 is uniformly distributed, and ensure the accuracy of the experiment.

Further, the air supply assembly 20 is disposed in the case 10, and the air supply assembly 20 is installed at the bottom of the case 10; the regulator 21 is used for introducing external air into the air supply pipeline 22, and the regulator 21 comprises a shell 25, a power piece 26 fixed in the shell 25, a screw 27 connected with the power piece 26, and a valve body 28 sleeved outside the screw 27. The casing 25 is in a hollow rectangular structure, one side of the casing 25 is in an open shape to ensure that external air can enter the casing 25, the casing 25 is connected with the air supply pipeline 22, an air inlet 251 is arranged on the casing 25, the air inlet 251 is in a circular through hole structure, the air inlet 251 is arranged at one end of the casing 25 close to the air supply pipeline 22, the air inlet 251 is communicated with the inside of the casing 25 and the inside of the air supply pipeline 22, and the external air is input into the air supply pipeline 22 through the air inlet 251; the power piece 26 is fixedly connected with the shell 25, and the power piece 26 is used for outputting driving torque so as to drive the screw 27 to rotate; the screw 27 is in a straight rod structure, one end of the screw 27 is arranged in the shell 25, the other end of the screw 27 passes through the air inlet 251 and extends towards the inside of the air supply pipeline 22, and two ends of the screw 27 are respectively hinged in the shell 25 and the air supply pipeline 22. It will be appreciated that the housing 25 and the air supply duct 22 are provided with plates to support the ends of the screw 27 while ensuring that the screw 27 is rotatable relative to the housing 25. In this embodiment, the screw 27 is connected to the power member 26 through a gear, and the power member 26 is a dc motor.

Further, the valve body 28 is arranged in a conical structure, the outer side surface of the valve body 28 is gradually contracted from one end far from the air inlet 251 to one end close to the air inlet 251, the valve body 28 is meshed with the screw 27, and the rotation of the screw 27 drives the valve body 28 to move along the screw 27, so that the depth of the valve body 28 inserted into the air inlet 251 is controlled, and the air flow rate of the external air entering the air supply pipeline 22 is regulated. The air supply pipe 22 is in a rectangular tubular structure, one end of the air supply pipe 22 is connected with the shell 25, the other end of the air supply pipe 22 is connected with the outer side wall of the air chamber 12, the air supply driving piece 23 is correspondingly arranged on the inner side wall of the air chamber 12, and the air in the air supply pipe 22 is conveyed into the air chamber 12 through the air supply driving piece 23. In this embodiment, the air supply driving member 23 is a blower.

Further, the valve body 28 is provided with a guide rod 285, the guide rod 285 is arranged in a straight rod structure, the guide rods 285 are oppositely arranged at two sides of the valve body 28, and the guide rods 285 at two sides extend away from the valve body 28; the housing 25 is provided with a guide groove 255, the guide rod 285 is correspondingly slidably disposed in the guide groove 255, the guide groove 255 is disposed in a strip-shaped structure, the guide groove 255 is correspondingly disposed at two sides of the housing 25, the guide groove 255 corresponds to the disposition position of the guide rod 285, one end of the guide rod 285 far away from the valve body 28 is inserted into the guide groove 255, the disposition direction of the guide groove 255 is the same as the disposition direction of the screw rod 27, the movement of the valve body 28 is guided by the guide rod 285 and the guide groove 255, and the valve body 28 is prevented from rotating relative to the housing 25.

Further, the oxygenation assembly 30 is installed in the tank 10, and the oxygenation assembly 30 is located at the bottom of the tank 10; the oxygen bottle 31 is arranged in a hollow structure, and the interior of the oxygen bottle 31 is used for containing oxygen; the oxygen pipe 32 is arranged in a hollow circular tubular structure, one end of the oxygen pipe 32 is connected with the oxygen cylinder 31, and the other end of the oxygen pipe 32 is connected with the outer side wall of the air chamber 12; the flowmeter 33 is arranged on the oxygen pipe 32, and the flowmeter 33 is used for measuring the oxygen flow passing through the oxygen pipe 32 so as to control the oxygen amount input into the air chamber 12; the oxygen-adding driving member 34 is provided on the inner side wall of the gas chamber 12, and the oxygen-adding driving member 34 is used for inputting oxygen in the oxygen pipe 32 into the gas chamber 12. In this embodiment, the oxygenation driving member 34 is a fan, the oxygenation driving member 34 and the air supply driving member 23 are disposed at the bottom of the air chamber 12, and the oxygenation driving member 34 and the air supply driving member 23 are disposed on the inner side wall of the air chamber 12 in parallel, so as to avoid collision between the air flow input by the air supply driving member 23 and the oxygen flow input by the oxygenation driving member 34 in the air chamber 12, generate turbulence, and further ensure uniform mixing of the air in the air chamber 12. The interface position of the oxygen bottle 31 and the oxygen tube 32 is provided with a pressure reducing valve 35, and the pressure reducing valve 35 is used for reducing the pressure of high-pressure oxygen in the oxygen bottle 31 to a preset pressure value and then discharging the high-pressure oxygen into the oxygen tube 32 so as to ensure the detection and control precision of the oxygen flow and further realize the accurate control of the oxygen content in the aging chamber 13.

Further, the irradiation assembly 40 is disposed in the aging chamber 13, and the irradiation assembly 40 includes a rotation driving member 41, a sample holder 42 connected to the rotation driving member 41, and a light source member 43 penetrating the inside of the sample holder 42. The rotary driving member 41 is fixedly connected with the case 10, and the rotary driving member 41 is used for driving the sample rack 42 to rotate; the sample frame 42 is generally arranged in a hollow spherical structure, one end of the sample frame 42 is connected with the rotary driving member 41, the other end of the sample frame 42 is rotatably arranged on the box body 10, the sample frame 42 is used for installing test samples, the test samples are driven to rotate in the aging chamber 13 through the sample frame 42, the oxygen concentration and the irradiation intensity of each test sample are further ensured to be equal, the maximized balance experiment error is further ensured, and the test accuracy is further improved. The light source member 43 is arranged in a cylindrical structure, the light source member 43 is used for providing irradiation, the light source member 43 is fixedly connected with the box body 10, and the sample holder 42 can rotate around the light source member 43. In this embodiment, the light source 43 is provided with a filter, and the transmission ratio of the light in different wavelength ranges can be changed by changing the filter, so as to achieve different testing requirements.

Further, a central control assembly 50 is disposed on the case 10, and the central control assembly 50 includes a display screen 51 and a controller (not shown). The display screen 51 is arranged on the outer side surface of the box body 10, the display screen 51 is used for displaying the oxygen concentration, illumination intensity, temperature of the box body 10, humidity of the box body 10 and stress parameters in the box body 10, the display screen 51 is electrically connected with the controller, the display screen 51 can convey operation instructions to the controller, and then the controller is used for controlling the working states of the air supply driving piece 23, the oxygenation driving piece 34, the power piece 26, the rotation driving piece 41 and the light source piece 43, so that the regulation and control of the oxidation state are realized. It can be understood that the sensor is disposed in the case 10 to obtain information such as oxygen concentration, illumination intensity, stress, temperature and humidity of the case 10, and transmit the information to the controller, so as to form closed-loop control, and ensure accuracy of control.

The working process of the utility model is as follows: firstly, fixing a test sample on a sample frame 42, closing a cover plate 17 to enable a containing cavity 11 to form a relatively airtight test environment, inputting test parameters through a display screen 51, controlling a gas supply driving piece 23 and an oxygen adding driving piece 34 to work according to the input parameters, controlling a power piece 26 to work according to oxygen concentration parameters to adjust the gas inlet area of a gas inlet 251 so as to control the inlet flow rate of air, and simultaneously controlling the oxygen flow rate of the oxygen adding driving piece 34 input into a gas chamber 12 according to a flow meter 33 so as to control the oxygen concentration in an aging chamber 13 to be a set value; the light source piece 43 is started to irradiate light on the test samples, and the rotation of each test sample around the light source piece 43 is controlled by the rotary driving piece 41, so that the irradiation uniformity is ensured; until the test sample is oxidized and failed, recording test data and completing the test.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A burn-in apparatus, comprising:

2. The burn-in apparatus of claim 1 wherein said gas supply actuator is disposed in parallel with said oxygen-adding actuator on an inside wall of said gas chamber.

3. The burn-in apparatus of claim 1 wherein said irradiation assembly comprises a rotary drive member, a sample holder coupled to said rotary drive member, and a light source member disposed through an interior of said sample holder.

4. The burn-in apparatus of claim 3 wherein said rotary drive member is fixedly coupled to said housing, one end of said sample holder is coupled to said rotary drive member, the other end of said sample holder is rotatably disposed on said housing, said light source member is fixedly coupled to said housing, and said sample holder is rotatable about said light source member.

5. The aging testing device according to claim 1, wherein the regulator comprises a housing, a power piece fixed in the housing, a screw connected with the power piece, and a valve body sleeved outside the screw; the shell is connected with the air supply pipeline, an air inlet is formed in the shell and is communicated with the inside of the shell and the inside of the air supply pipeline.

6. The burn-in apparatus of claim 5 wherein said valve body is configured in a conical configuration, and wherein an outer side surface of said valve body is configured in a tapered configuration from an end distal from said air inlet to an end proximal to said air inlet.

7. The burn-in apparatus of claim 6 wherein the valve body is provided with a guide bar, the housing is provided with a guide slot, and the guide bar is correspondingly slidably disposed in the guide slot.

8. The burn-in apparatus of claim 7, wherein the guide bars are disposed opposite to each other on both sides of the valve body, the guide bars on both sides extending away from each other from the valve body; the guide groove is arranged in a strip-shaped structure, one end of the guide rod, which is far away from the valve body, is inserted into the guide groove, and the setting direction of the screw rod is the same as that of the guide groove.

9. The aging testing apparatus according to claim 1, wherein a pressure reducing valve is provided at an interface position of the oxygen cylinder and the oxygen pipe.

10. The burn-in apparatus of claim 1 wherein a central control assembly is provided on the housing; the central control assembly comprises a display screen and a controller.