Device for testing service life of electric heating tube

Abstract

The utility model provides an electric heating tube life test device, which comprises a refrigerator, a lifting mechanism, an electric heating tube rotating clamp and a heating test mechanism, the lifting mechanism and the heating test mechanism are both arranged at the top of the refrigerator, and the upper surface of the refrigerator is provided with a test hole for the electric heating tube rotating clamp to enter and exit; the lifting mechanism drives the rectangular frame to move downwards, so that the clamping plate covers the test hole, the electric heating pipe enters the refrigerator, the interior of the refrigerator is in a low-temperature environment of-20 DEG C, the electric heating pipe is refrigerated for 12 hours and then moves upwards to reset through the lifting mechanism, and then the clamping plate is deflected towards the interior of the heating test mechanism through the rotating assembly; the electric heating tube is electrified after being kept in the room temperature environment for 24 hours, then the surface temperature and the internal temperature distribution of the electric heating tube are monitored through an infrared thermometer in the heating test mechanism, the whole process of the electric heating tube cold test method is completed, and the electric heating tube cold test method is high in automation degree and suitable for large-scale application and popularization.

Description

Technical Field

[0001] This utility model relates to the field of electric heating tube testing, and in particular to an electric heating tube life testing device. Background Technology

[0002] An electric heating element is a device that converts electrical energy into heat energy by emitting infrared radiation. It typically consists of a coil made of tungsten or chromium-aluminum wire placed inside a tube, where it interacts with an inert gas, causing the tube to heat up. Electric heating elements have wide applications in electrical, medical equipment, and automotive parts industries. Their lifespan and reliability are crucial to product performance and safety. Electric heating element testing equipment can assess their lifespan under normal operating conditions and simulate various situations that may occur during long-term use, such as high temperature, high humidity, and vibration, to predict the lifespan of the heating element and provide corresponding improvement suggestions.

[0003] The cold test method is a common testing method for electric heating tubes. This cold test method is usually carried out manually. Therefore, providing an electric heating tube life testing device to realize the cold test method has become an urgent problem to be solved. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] To address the aforementioned problems in the prior art, this utility model provides an electric heating tube life testing device.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] An electric heating element life testing device includes a freezer, a lifting mechanism, an electric heating element rotating clamp, and a heating testing mechanism.

[0009] Both the lifting mechanism and the heating test mechanism are located on the top of the freezer.

[0010] The upper surface of the freezer is provided with a test hole for the electric heating tube rotating clamp to move in and out;

[0011] The electric heating tube rotating clamp is installed on the lifting end of the lifting mechanism. The electric heating tube rotating clamp includes a rectangular frame, a clamping plate, and a rotating assembly.

[0012] The top of the rectangular frame is connected to the lifting end of the lifting mechanism;

[0013] The clamp is disposed within the rectangular frame and is used to fix the electric heating tube.

[0014] The rotating assembly is connected to the clamping plate and is used to control the rotation of the clamping plate.

[0015] Preferably, the rotating assembly includes a motor, a driving wheel, a driven wheel, a timing belt, and a rotating shaft;

[0016] The clamping plate is provided with the rotating shaft at both ends, and is rotatably connected to the inside of the rectangular frame through the rotating shaft;

[0017] The driven wheel is mounted on one of the rotating shafts;

[0018] The driving pulley is connected to the driven pulley via a timing belt;

[0019] The motor is connected to the drive wheel.

[0020] Preferably, the clamping plate includes an upper plate and a lower plate. The upper plate is provided with the rotating shaft at both ends, and the upper plate and the lower plate are provided with two fixing notches on the side that are close to each other. The upper plate and the lower plate are connected by bolts, and the fixing notches form fixing holes for fixing the free end of the electric heating tube.

[0021] Preferably, the lifting mechanism includes a lifting bracket and a lifting cylinder, the lifting bracket being mounted on the top of the freezer, and the lifting cylinder being installed on the top of the lifting bracket.

[0022] Preferably, the heating test mechanism includes a test chamber and an infrared thermometer. The test chamber has an opening on the side near the lifting mechanism, and the infrared thermometer is installed on the top of the test chamber.

[0023] (3) Beneficial effects

[0024] The beneficial effects of this utility model are as follows: By adopting the above technical solution, the electric heating tube is installed in the clamping plate, and the rectangular frame is driven to move downward by the lifting mechanism so that the clamping plate covers the test hole and the electric heating tube enters the freezer. The interior of the freezer is in a low temperature environment of -20°C. After the electric heating tube is refrigerated for 12 hours, it is moved upward and reset by the lifting mechanism. Then, the clamping plate is deflected into the heating test mechanism by the rotating component, so that the electric heating tube is continuously heated in the room temperature environment for 24 hours. Then, the electric heating is powered on. The surface temperature and internal temperature distribution of the electric heating tube are monitored by the infrared thermometer in the heating test mechanism, thus completing the entire process of the cold test method of the electric heating tube. This application has a high degree of automation and is suitable for large-scale promotion and use. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a device for testing the lifespan of an electric heating element.

[0026] Figure 2This is a side view schematic diagram of an electric heating tube life testing device;

[0027] Figure 3 This is a structural diagram of the freezer, lifting mechanism, and electric heating element rotating clamp.

[0028] Figure 4 A schematic diagram of the structure of the electric heating tube rotating clamp;

[0029] Figure 5 This is a schematic diagram of the clamping plate.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Refrigerated display case;

[0032] 2. Lifting mechanism;

[0033] 21. Lifting support; 22. Lifting cylinder;

[0034] 3. Electric heating element rotating clamp;

[0035] 31. Rectangular frame; 32. Clamping plate; 321. Upper plate; 322. Lower plate; 323. Bolt; 33. Rotating shaft; 34. Motor; 35. Drive wheel; 36. Synchronous belt; 37. Driven wheel;

[0036] 4. Heating testing equipment;

[0037] 41. Test chamber; 42. Infrared thermometer. Detailed Implementation

[0038] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0039] Please refer to Figures 1 to 5 This utility model provides an electric heating tube life testing device, including a freezer 1, a lifting mechanism 2, an electric heating tube rotating clamp 3, and a heating testing mechanism 4;

[0040] The lifting mechanism 2 and the heating test mechanism 4 are both located on the top of the freezer 1;

[0041] The upper surface of the freezer 1 is provided with a test hole for the electric heating tube rotating clamp 3 to enter and exit;

[0042] The electric heating tube rotating clamp 3 is installed on the lifting end of the lifting mechanism 2. The electric heating tube rotating clamp 3 includes a rectangular frame 31, a clamping plate 32 and a rotating assembly.

[0043] The top of the rectangular frame 31 is connected to the lifting end of the lifting mechanism 2;

[0044] The clamping plate 32 is set inside the rectangular frame 31, and the clamping plate 32 is used to fix the electric heating tube;

[0045] The rotating assembly connects to the clamping plate 32 and is used to control the rotation of the clamping plate 32;

[0046] In use, the electric heating tube is installed in the clamping plate 32. The lifting mechanism 2 drives the rectangular frame 31 to move downward, so that the clamping plate 32 covers the test hole and the electric heating tube enters the freezer 1. The interior of the freezer 1 is in a low temperature environment of -20°C. After the electric heating tube is refrigerated for 12 hours, it is moved upward and reset by the lifting mechanism 2. Then, the clamping plate 32 is deflected into the heating test mechanism 4 by the rotating component. After the electric heating tube is kept in the room temperature environment for 24 hours, the electric heating is powered on. The surface temperature and internal temperature distribution of the electric heating tube are then monitored by the infrared thermometer 42 in the heating test mechanism 4. The entire process of the cold test method of electric heating tube is completed. This application has a high degree of automation and is suitable for large-scale promotion and use.

[0047] In this embodiment, the rotating assembly includes a motor 34, a driving wheel 35, a driven wheel 37, a timing belt 36, and a rotating shaft 33;

[0048] The clamping plate 32 is provided with a rotating shaft 33 at both ends, and is rotatably connected to the inside of the rectangular frame 31 through the rotating shaft 33;

[0049] Driven wheel 37 is mounted on one of the rotating shafts 33;

[0050] The driving pulley 35 is connected to the driven pulley 37 via a timing belt 36;

[0051] Motor 34 is connected to drive wheel 35;

[0052] In use, the motor 34 drives the drive wheel 35 to rotate, and the drive wheel 35 drives the driven wheel 37 to rotate through the synchronous belt 36, which in turn causes the clamping plate 32 to deflect through the rotating shaft 33.

[0053] In this embodiment, the clamping plate 32 includes an upper plate 321 and a lower plate 322. The upper plate 321 is provided with a rotating shaft 33 at both ends. The upper plate 321 and the lower plate 322 are provided with two fixing notches on the side that are close to each other. The upper plate 321 and the lower plate 322 are connected by bolts 323. The fixing notches form fixing holes for fixing the free end of the electric heating tube. In use, the lower plate 322 is removed by bolts 323, the free end of the electric heating tube is placed into the fixing notch, and the upper plate 321 and the lower plate 322 are combined by bolts 323 to fix the electric heating tube.

[0054] In this embodiment, the lifting mechanism 2 includes a lifting bracket 21 and a lifting cylinder 22. The lifting bracket 21 is mounted on the top of the freezer 1, and the lifting cylinder 22 is installed on the top of the lifting bracket 21.

[0055] In this embodiment, the heating test mechanism 4 includes a test box 41 and an infrared thermometer 42. The test box 41 has an opening on the side near the lifting mechanism 2, and the infrared thermometer 42 is installed on the top of the test box 41.

[0056] The working principle of this utility model is as follows:

[0057] The electric heating tube is installed in the clamping plate 32. The rectangular frame 31 is driven downward by the lifting mechanism 2 so that the clamping plate 32 covers the test hole and the electric heating tube enters the freezer 1. The interior of the freezer 1 is in a low temperature environment of -20°C. After the electric heating tube is refrigerated for 12 hours, it is moved upward and reset by the lifting mechanism 2. Then, the clamping plate 32 is deflected into the heating test mechanism 4 by the rotating component. After the electric heating tube is kept in the room temperature environment for 24 hours, the electric heating is powered on. The surface temperature and internal temperature distribution of the electric heating tube are monitored by the infrared thermometer 42 in the heating test mechanism 4. The entire process of the cold test method of electric heating tube is completed. This application has a high degree of automation and is suitable for large-scale promotion and use.

[0058] The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0059] The above 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 specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for testing the lifespan of an electric heating element, characterized in that, Includes freezers, lifting mechanisms, electric heating element rotating clamps, and heating testing mechanisms; Both the lifting mechanism and the heating test mechanism are located on the top of the freezer. The upper surface of the freezer is provided with a test hole for the electric heating tube rotating clamp to move in and out; The electric heating tube rotating clamp is installed on the lifting end of the lifting mechanism. The electric heating tube rotating clamp includes a rectangular frame, a clamping plate, and a rotating assembly. The top of the rectangular frame is connected to the lifting end of the lifting mechanism; The clamp is disposed within the rectangular frame and is used to fix the electric heating tube. The rotating assembly is connected to the clamping plate and is used to control the rotation of the clamping plate.

2. The electric heating tube life testing device according to claim 1, characterized in that, The rotating assembly includes a motor, a driving wheel, a driven wheel, a timing belt, and a rotating shaft; The clamping plate is provided with the rotating shaft at both ends, and is rotatably connected to the inside of the rectangular frame through the rotating shaft; The driven wheel is mounted on one of the rotating shafts; The driving pulley is connected to the driven pulley via a timing belt; The motor is connected to the drive wheel.

3. The electric heating tube life testing device according to claim 2, characterized in that, The clamping plate includes an upper plate and a lower plate. The upper plate has a rotating shaft at both ends. The upper plate and the lower plate each have two fixing notches on their sides that are close to each other. The upper plate and the lower plate are connected by bolts. The fixing notches form fixing holes for fixing the free end of the electric heating tube.

4. The electric heating tube life testing device according to claim 1, characterized in that, The lifting mechanism includes a lifting bracket and a lifting cylinder. The lifting bracket is mounted on the top of the freezer, and the lifting cylinder is installed on the top of the lifting bracket.

5. The electric heating tube life testing device according to claim 1, characterized in that, The heating test mechanism includes a test chamber and an infrared thermometer. The test chamber has an opening on the side near the lifting mechanism, and the infrared thermometer is installed on the top of the test chamber.

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