Durability testing rack

Abstract

The utility model discloses a durability testing rack, which is applied to the technical field of durability testing racks and comprises a bottom plate and a threaded hole, the top of the bottom plate is fixedly connected with a cylinder through the threaded hole by using a section bar, the output end of the cylinder is fixedly connected with a testing plate, and the front surface and the back surface of the bottom plate are respectively bolted with a supporting block. According to the utility model, the automobile engine cover is placed on the rotating disc, the clamping assembly clamps the automobile engine cover, the air cylinder is started to test the durability of the automobile engine cover, the hydraulic cylinder is started at the same time, the hydraulic cylinder pushes the convex plate to move in a reciprocating manner, and when the convex plate is in contact with the fixed roller, the fixed roller is driven to rotate, so that the durability of the automobile engine cover is tested. Under the action of a fixed roller, a sliding rod, an impact plate, a supporting block and a shaking spring, a convex plate drives a bottom plate to shake, the actual situation can be truly simulated to carry out durability testing on the automobile engine cover, and the accuracy of durability testing is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of test durability test benches, and specifically relates to a test durability test bench. Background Technology

[0002] A durability test bench is a device or apparatus used to simulate the long-term, repeated loads or operating conditions that a product undergoes during actual use in order to evaluate its durability and reliability.

[0003] Currently, Chinese utility model patent CN209570318U discloses an electric hammer durability testing bench, including a support frame, a base frame, and a rotating shaft disposed between the support frame and the base frame; the base frame has a left limiting plate and a right limiting plate respectively on both sides of its upper end; the base frame and the support frame are connected by a connecting plate and a hydraulic support rod; the support frame has a fixed top plate at its top and an angle detection plate on its bottom side; the support frame has a buffer device in the middle, the upper end of which is connected to the electric hammer through a drill bit; the electric hammer has a clamp, a pressure plate and a cylinder at its top, and a positioning plate at its bottom; one end of the positioning plate has an electric hammer locking block; the buffer device of this utility model can provide good buffering performance and reduce vibration and noise when the electric hammer impacts, and the hydraulic support rod and rotating shaft allow the entire bench to rotate at a certain angle, enabling the bench to perform operation tests within the range of 0 to 90 degrees.

[0004] The aforementioned durability test bench uses cylinders as actuators to conduct durability tests on car engine hoods. The cylinders are set to drive the engine hood to open and close at a certain frequency, simulating daily use conditions. However, this durability test bench cannot realistically test the durability of car engine hoods because cars inevitably encounter uneven road surfaces during driving, causing them to bounce. This bouncing will affect the durability of the engine hood. Furthermore, durability tests need to be performed on different sides of the engine hood, requiring operators to frequently rotate the hood, which is cumbersome and reduces work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a durability testing bench, which has the advantage of causing the bench to shake, thus realistically simulating actual conditions for durability testing, and can automatically test different surfaces of a car engine hood.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a durability testing platform, comprising a base plate and threaded holes, wherein a cylinder is fixedly connected to the top of the base plate via the threaded holes using profiles, and a test plate is fixedly connected to the output end of the cylinder; support blocks are bolted to both the front and back of the base plate, a rocking spring is fixedly connected to the bottom of the support blocks, and a support column is fixedly connected to the other end of the rocking spring; fixing blocks are fixedly connected to both sides of the bottom of the base plate via threaded holes using profiles, and connecting blocks are fixedly connected to opposite sides of the two fixing blocks; a sliding rod is slidably connected inside the connecting block, an impact plate is bolted to the bottom of the sliding rod, a fixing roller is bolted to the bottom of the impact plate, a connecting plate is bolted to opposite sides of the two connecting blocks, a protruding plate is slidably connected to the top of the connecting plate, a hydraulic cylinder is fixedly connected to the front side of the bottom of the base plate via threaded holes using profiles, and the telescopic end of the hydraulic cylinder is bolted to the front of the protruding plate; a rotating mechanism is provided on the top of the base plate, and a clamping assembly is provided on the top of the rotating mechanism.

[0007] The above technical solution can simulate the actual situation to conduct durability tests on car engine hoods more realistically, improve the accuracy of durability tests, and bring more convenience for actual use in the later stage, making it easier to rework and repair unqualified engine hoods in a timely manner.

[0008] The present invention is further configured such that the rotating mechanism includes a support plate, the bottom of the support plate is fixedly connected by a profile through a threaded hole, a rotary motor is bolted to the front of the top of the support plate, a drive gear is fixedly connected to the output end of the rotary motor, a rotating rod is rotatably connected to the middle of the top of the support plate through a bearing, a driven gear that meshes with the drive gear is sleeved on the surface of the rotating rod, and a rotating disk is fixedly connected to the other end of the rotating rod.

[0009] By adopting the above technical solution, which includes a support plate, a rotary motor, a drive gear, a rotating rod, a driven gear, and a rotating disk, different surfaces of the engine cover can be rotated quickly and tested, saving manpower, simplifying operation, and improving testing efficiency.

[0010] The present invention is further configured such that the clamping assembly includes a fixing plate, the bottom of the fixing plate is bolted to the top of the rotating disk, and there are two fixing plates, one of which has a clamping threaded rod rotatably connected inside, one end of the clamping threaded rod is fixedly connected to a clamping block, and the other end of the clamping threaded rod is fixedly connected to a knob.

[0011] The above technical solution, by setting a fixing plate, a clamping threaded rod, a clamping block and a knob, can clamp and fix the test item, making it easy to fix and remove the test item. The operation is simple, the clamping efficiency is improved, and the clamping components can adapt to test items of different sizes.

[0012] The present invention is further configured such that a protective box is fixedly connected to the bottom side of the base plate via a threaded hole using a profile, and the surface of the hydraulic cylinder is bolted to the inside of the protective box.

[0013] By adopting the above technical solution, the hydraulic cylinder can be protected by setting up a protective box, avoiding damage to the hydraulic cylinder during use and extending the service life of the hydraulic cylinder.

[0014] The present invention is further configured such that guide plates are bolted to both sides of the top of the connecting plate, and guide blocks are bolted to both sides of the convex plate, with the side of the guide block away from the convex plate being slidably connected to the inner wall of the guide plate.

[0015] The above technical solution facilitates the movement of the convex plate by setting guide plates and guide blocks, ensuring that the movement direction of the convex plate is horizontal, preventing the convex plate from deflecting during movement, and avoiding adverse effects on subsequent operations.

[0016] The present invention is further configured such that a buffer spring is fixedly connected inside the connecting block, and the other end of the buffer spring is fixedly connected to the bottom of the slide rod.

[0017] By adopting the above technical solution, by setting a buffer spring, the slide bar and impact plate can be kept stable during reciprocating movement, thus avoiding damage to the components.

[0018] The present invention is further configured such that a housing is bolted to the front of the top of the support plate, and the surface of the rotary motor is bolted to the inside of the housing.

[0019] By adopting the above technical solution, the rotating motor can be protected by setting up an outer casing, preventing damage to the rotating motor during use and extending its service life.

[0020] The present invention is further configured such that a limit motor is bolted to the back of the bottom of the support plate, the output end of the limit motor is fixedly connected to a limit threaded rod, and a slider is threadedly connected to the surface of the limit threaded rod.

[0021] By adopting the above technical solution, the driven gear can be limited by setting a limit motor, a limit threaded rod and a slider, so as to avoid the driven gear rotating on its own during the test, which would cause the rotating disk to rotate and affect the test process, thus facilitating the test and improving the test accuracy.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. This utility model places the car engine cover on a rotating disk and clamps it with a clamping assembly. A cylinder is activated to perform a durability test, while a hydraulic cylinder is activated at the same time. The hydraulic cylinder pushes the convex plate to move back and forth. When the convex plate contacts the fixed roller, under the action of the fixed roller, slide bar, impact plate, support block and rocking spring, the convex plate drives the base plate to shake. This can simulate the actual situation to perform a durability test on the car engine cover more realistically, improve the accuracy of the durability test, and bring more convenience to the actual use in the later stage. It is convenient to rework and repair unqualified engine covers in a timely manner.

[0024] 2. This utility model uses a rotary motor to start, which drives the drive gear to rotate, which in turn drives the driven gear to rotate, and the driven gear drives the rotating rod to rotate, thus making the rotating disk rotate. This allows for quick rotation of different surfaces of the engine cover for testing, saving manpower, simplifying operation, and improving testing efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a partial top view of the structure of this utility model;

[0027] Figure 3 This is a partial structural bottom view of this utility model;

[0028] Figure 4 This is a partial structural front view of this utility model.

[0029] Reference numerals: 1. Base plate; 2. Threaded hole; 3. Cylinder; 4. Test plate; 5. Support block; 6. Shaking spring; 7. Support column; 8. Fixing block; 9. Connecting block; 10. Slide rod; 11. Impact plate; 12. Fixing roller; 13. Connecting plate; 14. Protruding plate; 15. Rotating mechanism; 1501. Support plate; 1502. Rotary motor; 1503. Drive gear; 1504. Rotating rod; 1505. Driven gear; 1506. Rotary disk; 16. Clamping assembly; 1601. Fixing plate; 1602. Clamping threaded rod; 1603. Clamping block; 1604. Knob; 17. Hydraulic cylinder; 18. Protective box; 19. Guide plate; 20. Guide block; 21. Buffer spring; 22. Outer shell; 23. Limiting motor; 24. Limiting threaded rod; 25. Slider. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings.

[0031] Example 1: Reference Figure 1 , Figure 3 and Figure 4A durability testing bench includes a base plate 1 and threaded holes 2. A cylinder 3 is fixedly connected to the top of the base plate 1 via the threaded holes 2 using profiles. A test plate 4 is fixedly connected to the output end of the cylinder 3. Support blocks 5 are bolted to both the front and back of the base plate 1. A rocking spring 6 is fixedly connected to the bottom of the support block 5. A support column 7 is fixedly connected to the other end of the rocking spring 6. Fixing blocks 8 are fixedly connected to both sides of the bottom of the base plate 1 via the threaded holes 2 using profiles. A connecting block 9 is fixedly connected to the opposite side of each of the two fixing blocks 8. A sliding rod 10 is slidably connected inside the connecting block 9. The bottom of the sliding rod 10... An impact plate 11 is bolted to the bottom of the impact plate 11, and a fixed roller 12 is bolted to the bottom of the impact plate 11. A connecting plate 13 is bolted to one side of the two connecting blocks 9 facing each other. A convex plate 14 is slidably connected to the top of the connecting plate 13. A hydraulic cylinder 17 is fixedly connected to the bottom of the base plate 1 by means of a profile through a threaded hole 2. The telescopic end of the hydraulic cylinder 17 is bolted to the front of the convex plate 14. This can simulate the actual situation to conduct a durability test on the car engine cover, improve the accuracy of the durability test, and bring more convenience to the actual use in the later stage. It is convenient to rework and repair unqualified engine covers in a timely manner.

[0032] refer to Figure 1 A protective box 18 is fixedly connected to the bottom side of the base plate 1 by means of a profile through a threaded hole 2. The surface of the hydraulic cylinder 17 is bolted to the inside of the protective box 18. By setting the protective box 18, the hydraulic cylinder 17 can be protected, avoiding damage to the hydraulic cylinder 17 during use and extending the service life of the hydraulic cylinder 17.

[0033] refer to Figure 3 Guide plates 19 are bolted to both sides of the top of the connecting plate 13, and guide blocks 20 are bolted to both sides of the convex plate 14. The side of the guide block 20 away from the convex plate 14 is slidably connected to the inner wall of the guide plate 19. By setting the guide plate 19 and the guide block 20, the movement of the convex plate 14 can be facilitated, so that the movement direction of the convex plate 14 is horizontal, avoiding the convex plate 14 from deflecting during the movement, and avoiding adverse effects on subsequent operations.

[0034] refer to Figure 4 A buffer spring 21 is fixedly connected inside the connecting block 9. The other end of the buffer spring 21 is fixedly connected to the bottom of the slide bar 10. By setting the buffer spring 21, the slide bar 10 and the impact plate 11 can be stable during reciprocating movement, thus avoiding damage to the parts.

[0035] Brief description of the usage process: The car engine cover is placed on the rotating disk 1506 and clamped by the clamping assembly 16. The cylinder 3 is activated to perform a durability test, and the hydraulic cylinder 17 is activated at the same time. The hydraulic cylinder 17 pushes the convex plate 14 to move back and forth. When the convex plate 14 contacts the fixed roller 12, under the action of the fixed roller 12, the slide bar 10, the impact plate 11, the support block 5 and the rocking spring 6, the convex plate 14 drives the base plate 1 to shake.

[0036] Example 2: Reference Figure 1 A durability test bench has a rotating mechanism 15 on the top of the base plate 1, and a clamping assembly 16 on the top of the rotating mechanism 15. The operation is simple and the testing efficiency is improved.

[0037] refer to Figure 2 The rotating mechanism 15 includes a support plate 1501. The bottom of the support plate 1501 is fixedly connected to the profile through a threaded hole 2. A rotary motor 1502 is bolted to the front of the top of the support plate 1501. A drive gear 1503 is fixedly connected to the output end of the rotary motor 1502. A rotating rod 1504 is rotatably connected to the middle of the top of the support plate 1501 through a bearing. A driven gear 1505 that meshes with the drive gear 1503 is sleeved on the surface of the rotating rod 1504. A rotating disk 1506 is fixedly connected to the other end of the rotating rod 1504. By setting up the support plate 1501, rotary motor 1502, drive gear 1503, rotating rod 1504, driven gear 1505 and rotating disk 1506, it is possible to quickly rotate different sides of the engine cover and test them, saving manpower, simplifying operation and improving testing efficiency.

[0038] refer to Figure 2 The clamping assembly 16 includes a fixing plate 1601, the bottom of which is bolted to the top of the rotating disk 1506. There are two fixing plates 1601, one of which has a clamping threaded rod 1602 rotatably connected inside. One end of the clamping threaded rod 1602 is fixedly connected to a clamping block 1603, and the other end is fixedly connected to a knob 1604. By setting the fixing plate 1601, the clamping threaded rod 1602, the clamping block 1603, and the knob 1604, the object to be tested can be clamped and fixed, which is convenient for fixing and removing the object to be tested. The operation is simple and the clamping efficiency is improved. At the same time, the clamping assembly 16 can adapt to objects of different sizes.

[0039] refer to Figure 1 The support plate 1501 has a housing 22 bolted to the front of its top. The surface of the rotary motor 1502 is bolted to the inside of the housing 22. By setting the housing 22, the rotary motor 1502 can be protected, preventing damage to the rotary motor 1502 during use and extending the service life of the rotary motor 1502.

[0040] refer to Figure 2 A limit motor 23 is bolted to the back of the bottom of the support plate 1501. The output end of the limit motor 23 is fixedly connected to a limit threaded rod 24. A slider 25 is threadedly connected to the surface of the limit threaded rod 24. By setting the limit motor 23, the limit threaded rod 24 and the slider 25, the driven gear 1505 can be limited, so as to prevent the driven gear 1505 from rotating on its own during the test, causing the rotating disk 1506 to rotate, which would affect the test process, facilitate the test and improve the test accuracy.

[0041] Brief description of the usage process: By starting the rotary motor 1502, the rotary motor 1502 drives the drive gear 1503 to rotate, the drive gear 1503 drives the driven gear 1505 to rotate, and the driven gear 1505 drives the rotating rod 1504 to rotate, which makes the rotating disk 1506 rotate.

[0042] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A test durability rig comprising a base plate (1) and threaded holes (2), characterized in that: The top of the bottom plate (1) is fixedly connected with a cylinder (3) through a threaded hole (2) by using a profile, the output end of the cylinder (3) is fixedly connected with a test plate (4), the front and back surfaces of the bottom plate (1) are both bolted with support blocks (5), the bottom of the support block (5) is fixedly connected with a wobble spring (6), the other end of the wobble spring (6) is fixedly connected with a support column (7), the two sides of the bottom of the bottom plate (1) are both fixedly connected with fixed blocks (8) through threaded holes (2) by using profiles, the opposite sides of the two fixed blocks (8) are both fixedly connected with connecting blocks (9), the inside of the connecting block (9) is slidably connected with a sliding rod (10), the bottom of the sliding rod (10) is bolted with a striking plate (11), the bottom of the striking plate (11) is bolted with a fixed roller (12), the opposite sides of the two connecting blocks (9) are bolted with connecting plates (13), the top of the connecting plate (13) is slidably connected with a convex plate (14), the front side of the bottom of the bottom plate (1) is fixedly connected with a hydraulic cylinder (17) through a threaded hole (2) by using a profile, the telescopic end of the hydraulic cylinder (17) is bolted with the front surface of the convex plate (14), the top of the bottom plate (1) is provided with a rotating mechanism (15), and the top of the rotating mechanism (15) is provided with a clamping assembly (16).

2. The test durability rig of claim 1, wherein: The rotating mechanism (15) comprises a support plate (1501), the bottom of the support plate (1501) is fixedly connected through a threaded hole (2) by using a profile, the front surface of the top of the support plate (1501) is bolted with a rotating motor (1502), the output end of the rotating motor (1502) is fixedly connected with a driving gear (1503), the middle of the top of the support plate (1501) is rotatably connected with a rotating rod (1504) through a bearing, the surface of the rotating rod (1504) is sleeved with a driven gear (1505) engaged with the driving gear (1503), and the other end of the rotating rod (1504) is fixedly connected with a rotating disc (1506).

3. A test durability rig according to claim 2, wherein: The clamping assembly (16) comprises a fixed plate (1601), the bottom of the fixed plate (1601) is bolted to the top of the rotating disc (1506), the number of the fixed plate (1601) is two, one of the fixed plates (1601) is rotatably connected with a clamping threaded rod (1602) in the inside, one end of the clamping threaded rod (1602) is fixedly connected with a clamping block (1603), and the other end of the clamping threaded rod (1602) is fixedly connected with a knob (1604).

4. The test durability rig of claim 1, wherein: The front side of the bottom of the bottom plate (1) is fixedly connected with a protection box (18) through a threaded hole (2) by using a profile, and the surface of the hydraulic cylinder (17) is bolted in the inside of the protection box (18).

5. The test durability rig of claim 1, wherein: The top of the connecting plate (13) is bolted with a guide plate (19) on both sides, the two sides of the convex plate (14) are both bolted with guide blocks (20), and the side, away from the convex plate (14), of the guide block (20) is slidably connected with the inner wall of the guide plate (19).

6. The test durability rig of claim 1, wherein: The inside of the connecting block (9) is fixedly connected with a buffer spring (21), and the other end of the buffer spring (21) is fixedly connected to the bottom of the sliding rod (10).

7. The test durability rig of claim 2, wherein: The front surface of the top of the support plate (1501) is bolted with a shell (22), and the surface of the rotary motor (1502) is bolted to the inside of the shell (22).

8. The test durability rig of claim 2, wherein: The back surface of the bottom of the support plate (1501) is bolted with a limiting motor (23), the output end of the limiting motor (23) is fixedly connected with a limiting threaded rod (24), and the surface of the limiting threaded rod (24) is threadedly connected with a sliding block (25).

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