A ski flex fatigue tester

Abstract

The utility model relates to ski production technical field discloses a kind of bending fatigue testing machines for ski, including drive frame, the inner wall of drive frame is rotatably connected with first roller, the top of drive frame is equipped with slide hole, the inner wall of slide hole is slidably connected with adjusting rod, the top of adjusting rod is fixedly connected with support block, the side surface of support block is provided with second roller.The utility model has following advantages and effects: support block carries out the gap size between two rollers of lift adjustment, the both ends of ski are fixed by another two groups of rollers, when testing, drive frame reciprocates up and down, so that first roller and second roller drive ski middle part repeatedly produce bending, high manganese steel layer has high toughness and wear-resistant alloy steel layer and die steel layer form triple rigidity promotion, promote the rigidity and toughness of first roller and second roller, and then surface is not easy to be deformed under the reciprocating applied pressure, prevent affecting the test precision of ski.

Description

Technical Field

[0001] This utility model relates to the field of ski production technology, and in particular to a bending fatigue testing machine for skis. Background Technology

[0002] Bending fatigue testing of skis is a crucial quality control and safety assessment method. Its core purpose is to simulate the repeated bending conditions of skis during actual skiing and to evaluate their structural durability and fatigue resistance under long-term use.

[0003] In the prior art, Chinese Patent Publication No. CN219369437U discloses a sheet metal bending test device. This device uses a sliding base with a fixing hole. The sliding base is inserted into the inner side of a sliding groove, which is mounted on a frame. A limiting screw is installed on the right side of the sliding groove. The top cover is fixed to the sliding base by bolts in the fixing hole. A sliding rod is welded below the pressure frame. A rotating shaft is installed inside the pressure frame, and a pressure rotating body is mounted on the shaft. A pressure sensor is located below the shaft. There are four transmission wheels, arranged in pairs. The left transmission wheel group has its left side in contact with the frame, its right side in contact with the partition, and its left side in contact with the partition. The fixing base is located on the left side of the partition and is in contact with the partition. The sliding base and the sliding groove are both located on the right side of the partition. This sheet metal bending test device has the advantages of quickly and accurately testing the bending performance of sheet metal and separating unsuitable sheet metal.

[0004] However, in actual use, due to the special usage scenario of skis, it is not convenient to test the bending state of skis when skiing on snow. Usually, a roller test is used. The roller applies pressure to the skis for a long time, and the surface of the roller is prone to deformation. Therefore, it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a bending fatigue testing machine for skis, which is not easily deformed under reciprocating pressure, thus preventing the impact on the testing accuracy of the skis.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a bending fatigue testing machine for skis, comprising a drive frame, a first roller rotatably connected to the inner wall of the drive frame, a sliding hole opened at the top of the drive frame, an adjusting rod slidably connected to the inner wall of the sliding hole, a support block fixedly connected to the top of the adjusting rod, a second roller provided on one side of the support block, a cylinder fixedly connected to the bottom of the drive frame, a telescopic rod fixedly connected to the output end of the cylinder, a high manganese steel layer fixedly connected to the outer surface of the first roller and the second roller, a wear-resistant alloy steel layer fixedly connected to the outer surface of the high manganese steel layer, and a mold steel layer fixedly connected to the outer surface of the wear-resistant alloy steel layer.

[0007] By adopting the above technical solution, when using the skis, the middle part is fixed in the gap between the first and second rollers. The cylinder is activated to drive the extension and retraction of the telescopic rod, which in turn drives the adjusting rod to slide on the inner wall of the sliding hole. This allows the support block to be raised and lowered to adjust the gap between the two rollers. The two ends of the skis are fixed by two other sets of rollers. During testing, the drive frame moves up and down repeatedly, causing the first and second rollers to repeatedly bend the middle part of the skis. The high-manganese steel layer, with its high toughness, forms a triple rigidity enhancement with the wear-resistant alloy steel layer and the mold steel layer, improving the rigidity and toughness of the first and second rollers. As a result, the surface is not easily deformed under reciprocating pressure, preventing any impact on the testing accuracy of the skis.

[0008] A further feature of this invention is that the mold steel layer is of type 8566 reinforced, and the hardness of the mold steel layer is HRC60 to 61.

[0009] By adopting the above technical solution, the mold steel layer has anti-collapse properties and strong toughness, which can withstand strong impact forces.

[0010] A further feature of this invention is that a guide rail plate is provided at the bottom of the drive frame, and an adjusting arm is slidably connected to the top of the guide rail plate.

[0011] By adopting the above technical solution, the number of adjustment arms is two, and their positions are adjusted according to the length of the skis.

[0012] A further feature of this invention is that a support frame is fixedly connected to the top of the adjusting arm, and a support roller is rotatably connected to the inner wall of the support frame.

[0013] By adopting the above technical solution, the support frame limits and fixes both ends of the ski, thus causing it to bend during movement.

[0014] A further feature of this invention is that the supporting roller and the first roller are made of the same material and have the same diameter.

[0015] By adopting the above technical solution, the support roller also has strong rigidity and a longer service life.

[0016] A further feature of this invention is that a workbench is fixedly connected to the bottom of the guide rail plate, and a second sliding hole is provided inside both the workbench and the guide rail plate.

[0017] By adopting the above technical solution, the second sliding holes on the worktable and guide rail plate are aligned vertically and are the same size.

[0018] A further feature of this invention is that a drive rod is fixedly connected to the bottom of the drive frame, and a second cylinder is fixedly connected to the bottom of the worktable.

[0019] By adopting the above technical solution, the second cylinder is activated during testing, which then drives the rod to move up and down.

[0020] A further feature of this invention is that a second telescopic rod is fixedly connected to the output end of the second cylinder, and a connecting rod is fixedly connected to the bottom of the second telescopic rod.

[0021] By adopting the above technical solution, the second telescopic rod reciprocates and extends, driving the connecting rod to move up and down.

[0022] A further feature of this invention is that a top rod is fixedly connected to the top of the connecting rod, and the top of the top rod is fixedly connected to the driving rod.

[0023] By adopting the above technical solution, the push rod pushes the drive rod, and the push rod corresponds to the center position of the drive rod.

[0024] A further feature of this invention is that a guide sleeve is fixedly connected to the bottom of the workbench, and the inner wall of the guide sleeve is slidably connected to the drive rod.

[0025] By adopting the above technical solution, the guide sleeve slides and limits the drive rod, thereby improving stability.

[0026] The beneficial effects of this utility model are: 1. This utility model, through the coordinated arrangement of the drive frame, first roller, sliding hole, adjusting rod, support block, second roller, cylinder, telescopic rod, high manganese steel layer, wear-resistant alloy steel layer, and mold steel layer, enables the device to be used when the operator fixes the middle part of the ski in the gap between the first and second rollers. The cylinder activates the telescopic rod to extend and retract, causing the adjusting rod to slide on the inner wall of the sliding hole. This allows the support block to adjust the gap between the two rollers by raising and lowering. The two ends of the ski are fixed by the other two sets of rollers. During testing, the drive frame moves up and down reciprocally, causing the first and second rollers to repeatedly bend the middle part of the ski. The high manganese steel layer, with its high toughness, forms a triple rigidity enhancement with the wear-resistant alloy steel layer and mold steel layer, improving the rigidity and toughness of the first and second rollers. Consequently, the surface is less prone to deformation under reciprocating pressure, preventing any impact on the testing accuracy of the ski.

[0027] 2. This utility model, through the coordinated arrangement of the guide rail plate, adjusting arm, support frame, support roller, worktable, second sliding hole, drive rod, second cylinder, second telescopic rod, connecting rod, top rod, and guide sleeve, enables the mold steel layer to have anti-breakage performance and strong toughness to withstand strong impact forces during use. The number of adjusting arms is two, and their position is adjusted according to the length of the ski. The support frame limits and fixes both ends of the ski, thus forming a bend during movement in the middle. The support roller also has strong rigidity and a longer service life. The sliding holes on the worktable and guide rail plate are vertically aligned and of the same size. During testing, the second cylinder is activated, and the drive rod moves up and down. The second telescopic rod reciprocates, driving the connecting rod to move up and down. The top rod pushes the drive rod, and the top rod corresponds to the center position of the drive rod. The guide sleeve slides and limits the drive rod, improving stability. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the drive frame structure of this utility model; Figure 3 This is a schematic diagram of the first roller structure of this utility model; Figure 4 This is a schematic diagram of the drive rod structure of this utility model.

[0030] In the diagram, 1. Drive frame; 2. First roller; 3. Sliding hole; 4. Adjusting rod; 5. Support block; 6. Second roller; 7. Cylinder; 8. Telescopic rod; 9. High manganese steel layer; 10. Wear-resistant alloy steel layer; 11. Mold steel layer; 12. Guide rail plate; 13. Adjusting arm; 14. Support frame; 15. Support roller; 16. Worktable; 17. Second sliding hole; 18. Drive rod; 19. Second cylinder; 20. Second telescopic rod; 21. Connecting rod; 22. Push rod; 23. Guide sleeve. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] Reference Figure 1-4A bending fatigue testing machine for skis includes a drive frame 1. A first roller 2 is rotatably connected to the inner wall of the drive frame 1. A sliding hole 3 is opened at the top of the drive frame 1, and an adjusting rod 4 is slidably connected to the inner wall of the sliding hole 3. A support block 5 is fixedly connected to the top of the adjusting rod 4, and a second roller 6 is provided on one side of the support block 5. A cylinder 7 is fixedly connected to the bottom of the drive frame 1, and a telescopic rod 8 is fixedly connected to the output end of the cylinder 7. A high-manganese steel layer 9 is fixedly connected to the outer surface of the first roller 2 and the second roller 6. A wear-resistant alloy steel layer 10 is fixedly connected to the outer surface of the high-manganese steel layer 9, and a mold steel layer 11 is fixedly connected to the outer surface of the wear-resistant alloy steel layer 10. When using the skis, the operator fixes the middle part of the skis in the gap between the first roller 2 and the second roller 6. Cylinder 7 initiates the extension and retraction of the telescopic rod 8, causing the adjusting rod 4 to slide along the inner wall of the sliding hole 3. This allows the support block 5 to adjust the gap between the two rollers. The two ends of the ski are fixed by two other sets of rollers. During testing, the drive frame 1 moves up and down reciprocally, causing the first roller 2 and the second roller 6 to repeatedly bend the middle part of the ski. The high-manganese steel layer 9, with its high toughness, forms a triple rigidity enhancement with the wear-resistant alloy steel layer 10 and the mold steel layer 11, improving the rigidity and toughness of the first roller 2 and the second roller 6. Consequently, the surface is less prone to deformation under reciprocating pressure, preventing any impact on the ski's testing accuracy. The mold steel layer 11 is an 8566 reinforced type with a hardness of HRC60 to 61, exhibiting anti-scraping properties. Yes, it is strong and resilient, able to withstand strong impacts. The bottom of the drive frame 1 is equipped with a guide rail plate 12, and the top of the guide rail plate 12 is slidably connected to two adjusting arms 13. The position of the adjusting arms 13 is adjusted according to the length of the ski. The top of the adjusting arms 13 is fixedly connected to a support frame 14, and the inner wall of the support frame 14 is rotatably connected to a support roller 15. The support frame 14 limits and fixes both ends of the ski, thus forming a bend during movement. The support roller 15 and the first roller 2 are made of the same material and have the same diameter. The support roller 15 also has strong rigidity and a longer service life. The bottom of the guide rail plate 12 is fixedly connected to a worktable 16. Both the worktable 16 and the guide rail plate 12 have a second sliding mechanism inside. Hole 17, the second sliding hole 17 on the worktable 16 and the guide rail plate 12 are vertically corresponding and the same size. A drive rod 18 is fixedly connected to the bottom of the drive frame 1, and a second cylinder 19 is fixedly connected to the bottom of the worktable 16. When testing, the second cylinder 19 is activated, and the drive rod 18 moves up and down. A second telescopic rod 20 is fixedly connected to the output end of the second cylinder 19. A connecting rod 21 is fixedly connected to the bottom of the second telescopic rod 20. The second telescopic rod 20 reciprocates and extends, driving the connecting rod 21 to move up and down. A push rod 22 is fixedly connected to the top of the connecting rod 21. The top of the push rod 22 is fixedly connected to the drive rod 18. The push rod 22 pushes the drive rod 18. The push rod 22 corresponds to the center position of the drive rod 18. A guide sleeve 23 is fixedly connected to the bottom of the worktable 16.The inner wall of the guide sleeve 23 is slidably connected to the drive rod 18, and the guide sleeve 23 limits the sliding movement of the drive rod 18, improving stability.

[0033] In this invention, the coordinated arrangement of the drive frame 1, first roller 2, sliding hole 3, adjusting rod 4, support block 5, second roller 6, cylinder 7, telescopic rod 8, high manganese steel layer 9, wear-resistant alloy steel layer 10, and mold steel layer 11 allows the device to be used effectively. During operation, the operator fixes the middle part of the ski in the gap between the first roller 2 and the second roller 6. The cylinder 7 activates the telescopic rod 8, causing the adjusting rod 4 to slide along the inner wall of the sliding hole 3. This allows the support block 5 to adjust the gap between the two rollers. The two ends of the ski are fixed by the other two sets of rollers. During testing, the drive frame 1 moves up and down, causing the first roller 2 and the second roller 6 to repeatedly bend the middle part of the ski. The high manganese steel layer 9, with its high toughness, forms a triple rigidity enhancement with the wear-resistant alloy steel layer 10 and the mold steel layer 11, improving the rigidity and toughness of the first roller 2 and the second roller 6. This prevents surface deformation under reciprocating pressure, thus ensuring the testing accuracy of the ski. The device is further enhanced by the guide rail plate 12, adjusting arm 13, and support frame 14. The coordinated arrangement between the support roller 15, worktable 16, second sliding hole 17, drive rod 18, second cylinder 19, second telescopic rod 20, connecting rod 21, push rod 22, and guide sleeve 23 ensures that the mold steel layer 11 has anti-scraping properties and high toughness to withstand strong impacts during use. The number of adjusting arms 13 is two, allowing for position adjustment according to the length of the ski. The support frame 14 supports both sides of the ski. The end is limited and fixed, so that bending occurs during the middle movement. The support roller 15 also has strong rigidity and a longer service life. The second sliding holes 17 on the worktable 16 and the guide rail plate 12 are vertically aligned and the same size. When testing, the second cylinder 19 is activated, and the drive rod 18 moves up and down. The second telescopic rod 20 reciprocates and extends, driving the connecting rod 21 to move up and down. The top rod 22 pushes the drive rod 18. The top rod 22 corresponds to the center position of the drive rod 18. The guide sleeve 23 slides and limits the drive rod 18 to improve stability.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending fatigue testing machine for skis, comprising a drive frame (1), characterized in that: The inner wall of the drive frame (1) is rotatably connected to a first roller (2). A sliding hole (3) is provided on the top of the drive frame (1). An adjusting rod (4) is slidably connected to the inner wall of the sliding hole (3). A support block (5) is fixedly connected to the top of the adjusting rod (4). A second roller (6) is provided on one side of the support block (5). A cylinder (7) is fixedly connected to the bottom of the drive frame (1). A telescopic rod (8) is fixedly connected to the output end of the cylinder (7). A high manganese steel layer (9) is fixedly connected to the outer surface of the first roller (2) and the second roller (6). A wear-resistant alloy steel layer (10) is fixedly connected to the outer surface of the high manganese steel layer (9). A mold steel layer (11) is fixedly connected to the outer surface of the wear-resistant alloy steel layer (10).

2. The bending fatigue testing machine for skis according to claim 1, characterized in that: The mold steel layer (11) is of type 8566 reinforced and has a hardness of HRC60-61.

3. The bending fatigue testing machine for skis according to claim 1, characterized in that: The bottom of the drive frame (1) is provided with a guide rail plate (12), and the top of the guide rail plate (12) is slidably connected with an adjusting arm (13).

4. A bending fatigue testing machine for skis according to claim 3, characterized in that: The top of the adjusting arm (13) is fixedly connected to a support frame (14), and the inner wall of the support frame (14) is rotatably connected to a support roller (15).

5. A bending fatigue testing machine for skis according to claim 4, characterized in that: The support roller (15) and the first roller (2) are made of the same material and have the same diameter.

6. A bending fatigue testing machine for skis according to claim 3, characterized in that: The bottom of the guide rail plate (12) is fixedly connected to a workbench (16), and a second sliding hole (17) is provided inside both the workbench (16) and the guide rail plate (12).

7. A bending fatigue testing machine for skis according to claim 6, characterized in that: The bottom of the drive frame (1) is fixedly connected to a drive rod (18), and the bottom of the worktable (16) is fixedly connected to a second cylinder (19).

8. A bending fatigue testing machine for skis according to claim 7, characterized in that: The output end of the second cylinder (19) is fixedly connected to a second telescopic rod (20), and the bottom of the second telescopic rod (20) is fixedly connected to a connecting rod (21).

9. A bending fatigue testing machine for skis according to claim 8, characterized in that: The top of the connecting rod (21) is fixedly connected to a top rod (22), and the top of the top rod (22) is fixedly connected to the drive rod (18).

10. A bending fatigue testing machine for skis according to claim 7, characterized in that: The bottom of the workbench (16) is fixedly connected to a guide sleeve (23), and the inner wall of the guide sleeve (23) is slidably connected to the drive rod (18).

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