Anti-fracture testing device for aluminum alloy bridge

Abstract

The utility model relates to the technical field of aluminum alloy bridges, in particular to an anti-fracture testing device for an aluminum alloy bridge, which overcomes the defect of lack of testing in the prior art and comprises a detection chamber, a lifter is fixedly mounted in the detection chamber, and a supporting plate is arranged at the output end of the lifter. A rack is arranged above the supporting plate, a gear is arranged in the detection chamber, the rack and the gear are mutually meshed and connected, a protective door is arranged on the right side of the gear, a first air cylinder is fixedly installed above the supporting plate, a guide rail is arranged above the supporting plate, a simulation group is arranged above the guide rail, and a second air cylinder is fixedly installed above the simulation group. A sprayer is rotatably connected to the upper portion of the simulation set, the right side of the simulation set is connected with the air rod end of a first air cylinder, a supporting frame is fixedly installed in the detection chamber, and the device has the advantages of being high in practicability and capable of achieving automatic detection.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy cable tray technology, specifically to a fracture resistance testing device for aluminum alloy cable trays. Background Technology

[0002] Aluminum alloy cable trays are cable supports made of aluminum alloy, primarily used for supporting and protecting cables. They are typically made from aluminum alloy sheets and are characterized by their lightweight, high strength, and corrosion resistance. The structure of an aluminum alloy cable tray includes trays, ladders, straight and bent sections, and supports, forming a continuous, rigid overall structure.

[0003] Existing testing devices for aluminum alloy cable trays only test their load-bearing capacity, without testing the fracture resistance of the joints. Under daily environmental corrosion and excessive load, the joints are prone to damage and eventual breakage, affecting safety and causing property loss. Therefore, it is necessary to conduct fracture resistance tests on the joints.

[0004] Therefore, it is necessary to design a practical and automated fracture resistance testing device for aluminum alloy cable trays. Utility Model Content

[0005] The purpose of this invention is to provide a fracture resistance testing device for aluminum alloy cable trays, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fracture resistance testing device for aluminum alloy cable trays, comprising a testing chamber, a lifting device fixedly installed inside the testing chamber, a support plate provided at the output end of the lifting device, a rack provided above the support plate, a gear provided inside the testing chamber, the rack and the gear meshing with each other, and a protective door provided on the right side of the gear.

[0007] According to the above technical solution, a first cylinder is fixedly installed above the support plate, a guide rail is provided above the support plate, a simulation group is provided above the guide rail, a sprayer is rotatably connected above the simulation group, and the right side of the simulation group is connected to the rod end of the first cylinder.

[0008] According to the above technical solution, a support frame is fixedly installed inside the testing chamber, a second cylinder is fixedly installed above the support frame, a buffer is provided at the rod end of the second cylinder, a fixed head is provided at the buffer end of the buffer, a cable tray is clamped on the inner side of the fixed head, and a connecting plate is provided at the bottom of the cable tray.

[0009] According to the above technical solution, a third cylinder is fixedly installed inside the detection chamber, a pressure device is provided at the end of the cylinder rod, and a detector is provided at the bottom of the pressure device.

[0010] According to the above technical solution, a detection rod is slidably connected inside the detector, a pressure plate is provided at the bottom of the detection rod, a spring is welded above the pressure plate, and the spring is welded to the detector.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0012] (1) By setting up a detector, a detector is set at the bottom of the presser. When simulating the weight of the cable, the sprayer will press the connecting plate. The third cylinder extends the air rod to drive the presser to the designated position. Then the presser drives the detector to descend and press the connecting plate. When the detector presses down, the spring will be compressed and the detection rod will retract into the detector. When the connecting plate breaks, the spring will rebound and push the detection rod out of the detector. At this time, the test ends, the result is recorded, and the fracture resistance test is completed.

[0013] (2) A sprayer is installed and a connecting plate is installed at the bottom of the cable tray. When the worker places the cable tray on the simulation group, the lifting device will lower the support plate and lower it together. During the descent, the second cylinder extends the air rod and fixes the two sides of the cable tray through the fixing head. In order to prevent the cable tray from deforming due to excessive extension distance, the buffer is used for buffering. The connecting plate of the cable tray is the main detection position. The sprayer will spray this position. In the event of a breakage at this position, the fixing head does not support the bottom of the cable tray, so it will not affect the breakage.

[0014] (3) By setting a rack and a protective door on the right side of the gear, when the lifting device retracts the lifting rod and drives the support plate to descend, it also drives the rack to descend. At this time, the rack will drive the gear to rotate, thereby driving the protective door to rotate inward and close, thus achieving synchronization. Attached Figure Description

[0015] Figure 1 This is a perspective three-dimensional structural diagram of the entire utility model;

[0016] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0017] Figure 3 This is an enlarged structural schematic diagram of some components of this utility model;

[0018] Figure 4 This is a side view of some components of this utility model;

[0019] In the diagram: 1. Testing chamber; 2. Lifter; 3. Support plate; 4. Rack; 5. Gear; 6. Protective door; 7. First cylinder; 8. Simulation group; 9. Sprayer; 10. Support frame; 11. Second cylinder; 12. Buffer; 13. Fixing head; 14. Cable tray; 15. Third cylinder; 16. Pressurizer; 17. Detector; 18. Detection rod; 19. Pressure plate; 20. Spring; 21. Guide rail; 22. Connecting plate. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 The present invention provides a technical solution: a fracture resistance testing device for aluminum alloy cable trays, comprising a testing chamber 1, a lifting device 2 fixedly installed inside the testing chamber 1, a support plate 3 provided at the output end of the lifting device 2, a rack 4 provided above the support plate 3, a gear 5 provided inside the testing chamber 1, the rack 4 and the gear 5 meshing with each other, and a protective door 6 provided on the right side of the gear 5. When the lifting device 2 retracts the lifting rod and drives the support plate 3 to descend, it also drives the rack 4 to descend. At this time, the rack 4 will drive the gear 5 to rotate, thereby driving the protective door 6 to rotate inward and close, achieving synchronization.

[0022] A first cylinder 7 is fixedly installed above the support plate 3. A guide rail 21 is set above the support plate 3. A simulation group 8 is set above the guide rail 21. A sprayer 9 is rotatably connected above the simulation group 8. The right side of the simulation group 8 is connected to the rod end of the first cylinder 7. The first cylinder 7 can control the extension and retraction of the rod to drive the simulation group 8 to move back and forth on the guide rail 21, thereby pushing the sprayer 9 to a suitable position. The sprayer 9 will automatically adjust the angle and spray a metered amount of corrosive liquid on the position to be tested, thereby simulating daily long-term wear and tear, and preparing for fracture resistance testing.

[0023] Inside the testing chamber 1, a support frame 10 is fixedly installed. A second cylinder 11 is fixedly installed above the support frame 10. A buffer 12 is provided at the end of the cylinder rod of the second cylinder 11. A fixed head 13 is provided at the buffer end of the buffer 12. The inner side of the fixed head 13 holds the cable tray 14. A connecting plate 22 is provided at the bottom of the cable tray 14. When the worker places the cable tray 14 on the simulation group 8, the lifting device 2 will also lower the support plate 3. During the descent, the second cylinder 11 extends its cylinder rod and fixes the two sides of the cable tray 14 through the fixed head 13. In order to prevent the cable tray 14 from deforming due to excessive extension distance, the buffer 12 is used for buffering. The connecting plate 22 of the cable tray 14 is the main testing position. The sprayer 9 will spray this position. In the event of a breakage at this position, the fixed head 13 does not support the bottom of the cable tray 14, so it will not affect the breakage.

[0024] A third cylinder 15 is fixedly installed inside the testing chamber 1. A pressure reducer 16 is provided at the end of the cylinder 15's air rod, and a detector 17 is provided at the bottom of the pressure reducer 16. When simulating the weight of the cable, the sprayer 9 will apply pressure to the connecting plate 22. The third cylinder 15 extends its air rod to drive the pressure reducer 16 to the designated position. Then, the pressure reducer 16 drives the detector 17 to descend and apply pressure to the connecting plate 22 for testing.

[0025] The detector 17 has a sliding connection to a detection rod 18. A pressure plate 19 is provided at the bottom of the detection rod 18. A spring 20 is welded above the pressure plate 19. The spring 20 is welded to the detector 17. When the detector 17 applies downward pressure, the spring 20 will be compressed and the detection rod 18 will retract into the detector 17. When the connecting plate 22 breaks, the spring 20 will rebound and push the detection rod 18 out of the detector 17. At this time, the test ends, the result is recorded, and the fracture resistance test is completed.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fracture resistance testing device for aluminum alloy cable trays, comprising a testing chamber (1), characterized in that: The testing chamber (1) is fixedly installed with a lifter (2). The output end of the lifter (2) is provided with a support plate (3). A rack (4) is provided above the support plate (3). A gear (5) is provided inside the testing chamber (1). The rack (4) and the gear (5) are meshed and connected to each other. A protective door (6) is provided on the right side of the gear (5).

2. The fracture resistance testing device for aluminum alloy cable trays according to claim 1, characterized in that: A first cylinder (7) is fixedly installed above the support plate (3). A guide rail (21) is provided above the support plate (3). A simulation group (8) is provided above the guide rail (21). A sprayer (9) is rotatably connected above the simulation group (8). The right side of the simulation group (8) is connected to the rod end of the first cylinder (7).

3. The fracture resistance testing device for aluminum alloy cable trays according to claim 1, characterized in that: A support frame (10) is fixedly installed inside the testing chamber (1). A second cylinder (11) is fixedly installed above the support frame (10). A buffer (12) is provided at the rod end of the second cylinder (11). A fixing head (13) is provided at the buffer end of the buffer (12). A cable tray (14) is clamped inside the fixing head (13). A connecting plate (22) is provided at the bottom of the cable tray (14).

4. The fracture resistance testing device for aluminum alloy cable trays according to claim 3, characterized in that: A third cylinder (15) is fixedly installed inside the detection chamber (1). A pressure device (16) is provided at the end of the cylinder rod of the third cylinder (15). A detector (17) is provided at the bottom of the pressure device (16).

5. The fracture resistance testing device for aluminum alloy cable trays according to claim 4, characterized in that: The detector (17) has a sliding connection to a detection rod (18), and a pressure plate (19) is provided at the bottom of the detection rod (18). A spring (20) is welded above the pressure plate (19), and the spring (20) is welded to the detector (17).

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