Aging test chamber with timer function

Abstract

This utility model relates to the technical field of aging test chambers and discloses an aging test chamber with a timing function. The chamber includes a housing, inside which a motor is fixedly connected. A gear is fixedly connected to the output end of the motor. A rectangular array of sprockets is rotatably connected inside the housing, with a chain positioned between the sprockets. The outer walls of the sprockets mesh with the chain. A gear is fixedly connected to the top of one sprocket, meshing with the outer wall of the first gear. In this utility model, the motor drives the first gear, which in turn drives the first sprocket to rotate via the second gear. With the chain connecting them, multiple sprockets rotate synchronously, thereby controlling the up-and-down sliding of the lead screw. This allows for height adjustment of the sample holder, solving the problem that the sample holder cannot be adjusted in height according to the size of the test sample and improving the applicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of aging test chamber technology, and in particular to an aging test chamber with a timing function. Background Technology

[0002] Aging test chambers are a general term for products in the environmental testing industry. They encompass various aging test methods, including ozone aging, ultraviolet aging, xenon lamp aging, ventilation-type thermal aging, high-temperature aging, and salt spray corrosion aging. It is one of the most important artificial environmental climate testing methods. When conducting ultraviolet aging tests, the aging test chamber uses fluorescent ultraviolet lamps as the light source to simulate ultraviolet radiation from natural sunlight, thereby accelerating the weather resistance test of materials and obtaining the results of the materials' weather resistance.

[0003] In current experimental environments, aging test chambers are widely used for ultraviolet aging tests on plastic pipes. During these tests, the test samples are typically placed on sample racks. However, due to the varying dimensions and heights of plastic pipes, placing these samples of different sizes and heights on the same horizontal plane may result in some samples not receiving sufficient ultraviolet radiation, thus affecting the accuracy of the test results. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an aging test chamber with a timing function, which aims to improve the problem that the sample rack of the existing aging test chamber cannot be height adjusted according to the size of the test sample.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aging test chamber with a timing function, comprising a chamber body, an electric motor fixedly connected inside the chamber body, a gear one fixedly connected to the output end of the electric motor, a rectangular array of sprockets rotatably connected inside the chamber body, a chain arranged between the sprockets in the rectangular array, the outer wall of the sprocket meshing with the chain, a gear two fixedly connected to the top of one sprocket, the gear two meshing with the outer wall of the gear one, a lead screw threadedly connected inside the sprocket, a sliding groove first opened inside the chamber body, the outer wall of the lead screw slidably connected inside the sliding groove first, a slide rod fixedly connected to the top of the lead screw, the outer wall of the slide rod slidably connected inside the chamber body, and a sample holder fixedly connected to the top of the slide rod.

[0006] Furthermore, a control panel is fixedly connected to one side of the outer wall of the box, and casters are rotatably connected to the bottom of the box.

[0007] Furthermore, a cylinder is fixedly connected inside the housing, and a rack is fixedly connected to the output end of the cylinder.

[0008] Furthermore, a drive shaft is rotatably connected to the outer wall of the housing, and a gear three is fixedly connected to the top of the drive shaft.

[0009] Furthermore, the outer wall of the gear three meshes with the outer wall of the rack, and the inside of the housing is provided with a sliding groove two.

[0010] Furthermore, a rotating rod is fixedly connected to one side of the outer wall of the drive shaft, and a door frame is rotatably connected to one side of the rotating rod.

[0011] Furthermore, a slider is rotatably connected to the top of the door frame, and the outer wall of the slider is slidably connected to the inside of the second slide groove. A rolling groove is provided inside the box body, and the rolling groove is formed on the inner wall of the second slide groove.

[0012] Furthermore, an observation window is fixedly connected inside the door frame, and a roller is rotatably connected to the outer wall of the slider, with the outer wall of the roller fitting against the inner wall of the rolling groove.

[0013] This utility model has the following beneficial effects: 1. In this utility model, an electric motor can drive gear one, which in turn drives a sprocket to rotate through gear two. With the connection of the chain, multiple sprockets rotate synchronously, thereby controlling the up and down sliding of the lead screw and allowing the sample holder to be height adjusted. This solves the problem that the sample holder cannot be height adjusted according to the size of the test sample, and improves the applicability of the device.

[0014] 2. In this utility model, the rack is driven by the cylinder, which in turn drives the gear three to rotate, thereby controlling the drive shaft to rotate. The drive shaft then pushes the door frame through the rotating rod, and one side of the door frame moves by sliding the slider, thereby closing the door frame and improving the convenience of opening and closing the aging test chamber. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the aging test chamber with timing function proposed in this utility model; Figure 2 This is a schematic cross-sectional view of the aging test chamber with timing function proposed in this utility model. Figure 3 This is a schematic diagram of the rotating shaft structure of the aging test chamber with timing function proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0016] Legend: 1. Housing; 2. Casters; 3. Control panel; 4. Door frame; 5. Observation window; 6. Drive shaft; 7. Motor; 8. Slide rail one; 9. Sample rack; 10. Lead screw; 11. Sprocket; 12. Chain; 13. Gear one; 14. Gear two; 15. Slide rod; 16. Cylinder; 17. Rack; 18. Gear three; 19. Rotating rod; 20. Rolling groove; 21. Roller; 22. Slide rail two; 23. Slider. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 and Figure 2 An embodiment of this utility model provides an aging test chamber with a timing function, comprising a chamber body 1, an electric motor 7 fixedly connected inside the chamber body 1, a gear 13 fixedly connected to the output end of the electric motor 7, a rectangular array of sprockets 11 rotatably connected inside the chamber body 1, a chain 12 arranged between the rectangular array of sprockets 11, the outer wall of the sprockets 11 meshing with the chain 12, a gear 14 fixedly connected to the top of one sprocket 11, the gear 14 meshing with the outer wall of the gear 13, a lead screw 10 threadedly connected inside the sprockets 11, a sliding groove 8 opened inside the chamber body 1, the outer wall of the lead screw 10 slidably connected inside the sliding groove 8, a slide rod 15 fixedly connected to the top of the lead screw 10, the outer wall of the slide rod 15 slidably connected inside the chamber body 1, and a sample rack 9 fixedly connected to the top of the slide rod 15. Specifically, when the test chamber is put into use, the operator first places the test sample on the sample rack 9. The sample rack 9 is made of high-strength aluminum alloy with an anodized surface, providing excellent corrosion resistance and stability, and can support various types of test samples. Then, the motor 7 is started. The output shaft of the motor 7 is connected to gear 13. When the motor 7 starts running, it drives gear 13 to rotate. As gear 13 rotates, it drives gear 14 to rotate through gear meshing. Gear 14 is fixed to sprocket 11 by a key connection. Therefore, when gear 14 rotates, the sprocket 11 fixed to it also rotates synchronously. Sprocket 11 is made of high-quality carbon steel, and its tooth profile perfectly matches the chain 12, ensuring no slippage during transmission. Multiple sprockets 11 are connected by the chain 12, forming a chain drive system. The chain 12 is a high-strength roller chain with high tensile strength and fatigue life. Capable of withstanding long-term continuous operation, multiple sprockets 11 can rotate synchronously under the action of chain 12, thereby evenly transmitting power to each lead screw 10. When the sprocket 11 rotates, it drives the lead screw 10 to slide up and down inside the slide groove 8. The lead screw 10 adopts a trapezoidal thread design, combined with a high-precision nut pair, which can efficiently convert rotational motion into linear motion. A linear guide rail is installed inside the slide groove 8 to provide precise guidance for the sliding of the lead screw 10, reduce frictional resistance, and ensure the smoothness and accuracy of the movement of the lead screw 10. The top of the lead screw 10 is connected to the slide rod 15. When the lead screw 10 slides up and down, it will drive the slide rod 15 to move synchronously. With the movement of the slide rod 15, it will push the sample holder 9 to move in the vertical direction, thereby realizing the height adjustment of the sample holder 9. The operator can set the number of rotations and direction of the motor 7 through the control system according to the test requirements to precisely control the lifting height of the sample holder 9 to meet the requirements of the sample position under different test conditions.

[0019] Reference Figure 1 A control panel 3 is fixedly connected to one side of the outer wall of the box 1, and a caster wheel 2 is rotatably connected to the bottom of the box 1. Specifically, a control panel 3 is provided on one side of the test chamber. The control panel 3 can be used to perform operations such as timing the test, which facilitates the control of the aging test chamber. Universal wheels 2 are provided at the bottom of the chamber 1, which facilitates the movement of the test chamber and makes it easy to change its position.

[0020] Reference Figure 3 and Figure 4A cylinder 16 is fixedly connected inside the housing 1. A rack 17 is fixedly connected to the output end of the cylinder 16. A drive shaft 6 is rotatably connected to the outer wall of the housing 1. A gear 18 is fixedly connected to the top of the drive shaft 6. The outer wall of the gear 18 meshes with the outer wall of the rack 17. A slide groove 22 is opened inside the housing 1. A rotating rod 19 is fixedly connected to one side of the outer wall of the drive shaft 6. A door frame 4 is rotatably connected to one side of the rotating rod 19. A slider 23 is rotatably connected to the top of the door frame 4. The outer wall of the slider 23 is slidably connected inside the slide groove 22. A rolling groove 20 is opened inside the housing 1. The rolling groove 20 is opened on the inner wall of the slide groove 22. An observation window 5 is fixedly connected inside the door frame 4. A roller 21 is rotatably connected to the outer wall of the slider 23. The outer wall of the roller 21 fits against the inner wall of the rolling groove 20. Specifically, when the control system issues a command, the piston rod of cylinder 16 extends, pushing the rack 17 connected to it. The rack 17 and gear 18 form a precision transmission pair. Under the thrust of cylinder 16, the rack 17 moves smoothly along a preset linear guide. As the rack 17 moves linearly, the gear 18 meshing with it begins to rotate. The rotation of gear 18 efficiently transmits power to drive shaft 6 through a key connection. When drive shaft 6 rotates, the rotating rod 19 welded to the outer wall performs a circular motion. The rotating rod 19 has an L-shaped structure and adopts a hollow steel tube design to reduce weight while ensuring strength. Its length has been optimized through mechanical calculations to ensure that the door frame 4 is pulled with a suitable lever arm. When the rotating rod 19 moves to a specific angle, its end is hinged to the connecting ear plate on one side of the door frame 4 through a pin. As drive shaft 6 continues to rotate, the rotating rod 19 gradually pulls this side of the door frame 4 closer to the housing 1. The door frame 4 is made of high-strength aluminum. The alloy frame, inlaid with double-layered tempered glass, ensures both structural strength and facilitates observation of the test process. During the pulling of the door frame 4, the installed rollers 21 play a crucial role. Rollers 21, made of polyurethane-coated material with a diameter of 80mm, are equipped with high-precision bearings, resulting in extremely low rolling friction. Rollers 21 are connected to the top slider 23 via a linkage mechanism. The slider 23 is embedded in the second sliding groove 22. As one side of the door frame 4 is pulled, rollers 21 roll smoothly within the rolling groove 20, simultaneously driving the top slider 23 to slide along the second sliding groove 22, ensuring that the door frame 4 remains horizontal. When the door frame 4 completely covers the opening of the chamber 1, the sealing strip between the door frame 4 and the chamber 1 fits tightly. This sealing strip, made of silicone rubber, has good elasticity and weather resistance, forming a reliable seal under compression to prevent gas leakage or external interference during the test, thus ensuring the test proceeds smoothly in a stable and safe environment.

[0021] Working principle: When using this test chamber, the test sample can be placed on the sample holder 9. The motor 7 controls the rotation of gear 13, which in turn drives gear 14 to rotate. This causes the sprocket 11, which is fixed to gear 14, to rotate. Since multiple sprockets 11 are connected by chains 12, they can rotate synchronously, thereby driving the lead screw 10. The lead screw 10 slides up and down inside the slide groove 8, which in turn drives the top slide bar 15 to push the sample. The sample holder 9 is height-adjustable. During the test, the cylinder 16 pushes the rack 17, which drives the gear 18 to rotate. The drive shaft 6 connected to the gear 18 will then rotate. The rotating rod 19 on the outer wall of the drive shaft 6 pulls one side of the door frame 4, bringing that side closer to the box body 1. The other side of the door frame 4 will slide along the slide groove 22 with the help of the roller 21, thereby moving the door frame 4 to a horizontal position and closing the box body 1 to ensure the test can proceed.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An aging test chamber with a timing function, comprising a chamber body (1), characterized in that: An electric motor (7) is fixedly connected inside the housing (1). A gear (13) is fixedly connected to the output end of the electric motor (7). A rectangular array of sprockets (11) is rotatably connected inside the housing (1). A chain (12) is arranged between the sprockets (11) in the rectangular array. The outer wall of the sprocket (11) meshes with the chain (12). A gear (14) is fixedly connected to the top of one of the sprockets (11). The gear (14) meshes with the outer wall of the gear (13). A lead screw (10) is threaded inside the sprocket (11). A sliding groove (8) is opened inside the housing (1). The outer wall of the lead screw (10) is slidably connected inside the sliding groove (8). A slide rod (15) is fixedly connected to the top of the lead screw (10). The outer wall of the slide rod (15) is slidably connected inside the housing (1). A sample holder (9) is fixedly connected to the top of the slide rod (15).

2. The aging test chamber with timing function according to claim 1, characterized in that: A control panel (3) is fixedly connected to one side of the outer wall of the box (1), and a caster wheel (2) is rotatably connected to the bottom of the box (1).

3. The aging test chamber with timing function according to claim 1, characterized in that: A cylinder (16) is fixedly connected inside the housing (1), and a rack (17) is fixedly connected to the output end of the cylinder (16).

4. The aging test chamber with timing function according to claim 3, characterized in that: The outer wall of the housing (1) is rotatably connected to a drive shaft (6), and a gear three (18) is fixedly connected to the top of the drive shaft (6).

5. The aging test chamber with timing function according to claim 4, characterized in that: The outer wall of the gear three (18) meshes with the outer wall of the rack (17), and the box body (1) has a sliding groove two (22) inside.

6. The aging test chamber with timing function according to claim 5, characterized in that: A rotating rod (19) is fixedly connected to one side of the outer wall of the drive shaft (6), and a door frame (4) is rotatably connected to one side of the rotating rod (19).

7. The aging test chamber with timing function according to claim 6, characterized in that: The top of the door frame (4) is rotatably connected to a slider (23), the outer wall of the slider (23) is slidably connected to the inside of the second slide groove (22), and a rolling groove (20) is opened inside the box (1), the rolling groove (20) is opened on the inner wall of the second slide groove (22).

8. The aging test chamber with timing function according to claim 7, characterized in that: An observation window plate (5) is fixedly connected inside the door frame (4), and a roller (21) is rotatably connected to the outer wall of the slider (23). The outer wall of the roller (21) is in contact with the inner wall of the rolling groove (20).

Images