A multi-angle loading device for fastener systems with amorphous coatings

Abstract

The utility model provides a kind of fastener system multi-angle loading device using amorphous coating.The fastener system multi-angle loading device using amorphous coating includes crossbeam, two adjusting holes are symmetrically equipped on the crossbeam, loading pivot is equipped in the adjusting hole, the outside of the loading pivot is symmetrically fixed and installed with two positioning rings, the side of the two positioning rings mutually close is respectively contacted with the two sides of the crossbeam, the upper of the adjusting hole is equipped with multiple bolt adjusting holes opened on the crossbeam, strip fixed hole is opened on the positioning ring, fixed bolt is equipped in the strip fixed hole.The fastener system multi-angle loading device using amorphous coating provided by the utility model has the mode of using amorphous coating, the loading head is amorphous surface treatment, the surface hardness and corrosion resistance are greatly increased, and the loading head and the loading frame are set as split type connection, which significantly increases the service life.

Description

Technical Field

[0001] This utility model relates to the technical field of fastener testing equipment, and in particular to a multi-angle loading device for a fastener system using an amorphous coating. Background Technology

[0002] Rail fasteners are crucial components of the track structure, primarily responsible for maintaining a reliable connection between the rail and the track foundation. To verify their ability to ensure safe operation and to compare the performance of different fasteners under identical conditions, fatigue tests on the fastener assembly are conducted according to railway industry standards. The specific method involves assembling the fastener onto a single sleeper and applying dynamic vertical and lateral forces to the fasteners on both sides of the sleeper using a loading frame. This simulates the actual stress conditions of the fasteners. After a specified number of tests, the test data is obtained.

[0003] In the prior art, a fastener fatigue test loading frame adapted to multiple loading angles is disclosed, including a load-bearing crossbeam, two sliders, two lug welded parts, two limiting blocks, and two fixed shafts. The load-bearing crossbeam is arranged laterally and has symmetrical rectangular holes. Sliders are installed in each rectangular hole. The two fixed shafts pass through the two sliders respectively. The tops of the two lug welded parts are connected to the load-bearing crossbeam as a whole through the fixed shafts. The tails of the fixed shafts protrude from the lug welded parts and are fitted with anti-reverse bushings. The bottom ends of the lug welded parts are provided with contact angles. Two limiting blocks are symmetrically arranged on the bottom surface of the load-bearing crossbeam, and the sides of the limiting blocks are made with corresponding bevels. Long bolts are provided on the bottom surfaces of both ends of the load-bearing crossbeam, and nuts are provided at the bottom of the long bolts to limit the opening angle of the lug welded parts. However, the part of the loading frame that contacts the rail is extremely prone to wear, which can easily lead to the scrapping of the entire loading frame.

[0004] Therefore, it is necessary to provide a new multi-angle loading device for fastener systems using amorphous coatings to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem solved by this utility model is to provide a multi-angle loading device for a fastener system using an amorphous coating to treat the loading head with an amorphous surface, which greatly increases its surface hardness and corrosion resistance, and sets the loading head and loading frame as separate connections, thus significantly increasing service life.

[0006] To solve the above-mentioned technical problems, the present invention provides a multi-angle loading device for a fastener system using an amorphous coating, comprising: a crossbeam, on which two adjustment holes are symmetrically arranged, and a loading hub is provided in each adjustment hole; two positioning rings are symmetrically fixedly installed on the outer side of the loading hub, and the sides of the two positioning rings that are close to each other are in contact with the two sides of the crossbeam; multiple bolt adjustment holes are provided above the adjustment holes on the crossbeam; a strip-shaped fixing hole is provided on each positioning ring, and a fixing bolt is provided in each strip-shaped fixing hole; the fixing bolt is threaded into the bolt adjustment hole; a loading arm is sleeved on the outer side of the loading hub, and the loading arm is in contact with the two positioning rings; two fixing bolts are symmetrically arranged on the loading arm; an adjustable angle plate is installed between the two fixing bolts; the adjustable angle plate and the crossbeam are provided with the same long bolt; an adjustment pad is installed at the bottom of the loading arm; an amorphous coated loading head is fixedly installed at the bottom of the adjustment pad, and the amorphous coated loading head is in contact with the test sample.

[0007] Preferably, both ends of the loading hub are threaded with loading hub covers.

[0008] Preferably, the two ends of the long bolt pass through the crossbeam and the adjustable angle plate respectively, and the long bolt is provided with a plurality of first locking nuts, which are connected to the crossbeam or the adjustable angle plate.

[0009] Preferably, a second locking nut is fixedly installed on the outside of the fixing bolt, and the second locking nut is in contact with the loading arm.

[0010] Preferably, the surface of the amorphous coating loading head that contacts the test sample is coated with an Ir-Ni-Ta layer by magnetron sputtering, and the atomic ratio of Ta, Ir, and Ni is 6:2:2.

[0011] Compared with related technologies, the multi-angle loading device for fastener system using an amorphous coating provided by this utility model has the following advantages:

[0012] This utility model provides a multi-angle loading device for a fastener system using an amorphous coating. The loading head is treated with an amorphous coating to significantly increase its surface hardness and corrosion resistance. Furthermore, the loading head and the loading frame are designed as separate connections, which significantly increases the service life. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of the multi-angle loading device for a fastener system with an amorphous coating provided by this utility model;

[0014] Figure 2 for Figure 1The diagram shows a side view of the structure.

[0015] Figure 3 for Figure 1 The XRD pattern of the amorphous coating on the loading head on the steel surface is shown.

[0016] The following are the labels in the diagram: 1. Positioning ring, 2. Loading hub cover, 3. Crossbeam, 4. Loading arm, 5. Adjustable angle plate, 6. Adjustment pad, 7. Amorphous coating loading head, 8. Test sample, 9. Fixing bolt, 10. Loading hub, 11. Long bolt, 12. Fixing bolt, 13. Adjustment hole, 14. Bolt adjustment hole, 15. Strip fixing hole. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in, Figure 1 A schematic diagram of a preferred embodiment of the multi-angle loading device for a fastener system with an amorphous coating provided by this utility model; Figure 2 for Figure 1 The diagram shows a side view of the structure. Figure 3 for Figure 1 The XRD pattern of the amorphous coating on the loading head on the steel surface is shown. The multi-angle loading device of the fastener system using the amorphous coating includes: a crossbeam 3, on which two adjusting holes 13 are symmetrically arranged; a loading hub 10 is provided within each adjusting hole 13; two positioning rings 1 are symmetrically fixedly installed on the outer side of the loading hub 10; the sides of the two positioning rings 1 that are close to each other are in contact with the two sides of the crossbeam 3 respectively; multiple bolt adjusting holes 14 are provided above the adjusting holes 13 on the crossbeam 3; a strip-shaped fixing hole 15 is provided on each positioning ring 1; a fixing bolt 9 is provided within the strip-shaped fixing hole 15; the fixing... Bolt 9 is threaded into the bolt adjustment hole 14. Loading arm 4 is sleeved on the outside of loading hub 10. Loading arm 4 is in contact with two positioning rings 1. Two fixing bolts 12 are symmetrically arranged on loading arm 4. An adjustable angle plate 5 is installed between the two fixing bolts 12. The adjustable angle plate 5 and the crossbeam 3 are provided with the same long bolt 11. Adjustment pad 6 is installed at the bottom of loading arm 4. Amorphous coating loading head 7 is fixedly installed at the bottom of adjustment pad 6. Amorphous coating loading head 7 is in contact with the test sample 8.

[0019] Both ends of the loading hub 10 are threaded with loading hub covers 2.

[0020] The two ends of the long bolt 11 pass through the crossbeam 3 and the adjustable angle plate 5 respectively. The long bolt 11 is provided with a plurality of first locking nuts, which are connected to the crossbeam 3 or the adjustable angle plate 5.

[0021] A second locking nut is fixedly installed on the outside of the fixing bolt 12, and the second locking nut is in contact with the loading arm 4.

[0022] The surface of the amorphous coating loading head 7 that is in contact with the test sample 8 is coated with an Ir-Ni-Ta layer by magnetron sputtering, and the atomic ratio of Ta, Ir, and Ni is 6:2:2.

[0023] In this invention, the amorphous coating loading head 7 is made of steel material with an Ir-Ni-Ta coating deposited on one surface by magnetron sputtering. An amorphous coating can be formed on the steel surface, which greatly improves the surface hardness and corrosion resistance of the loading head, while the steel substrate maintains the toughness and fatigue resistance of the loading head.

[0024] The working principle of the multi-angle loading device for the fastener system with amorphous coating provided by this utility model is as follows:

[0025] When changing the loading angle, remove the positioning ring 1 from the crossbeam 3. The crossbeam 3 has a row of bolt adjustment holes 14, and the positioning ring 1 has a strip-shaped fixing hole 15. Select a suitable position for the bolt adjustment hole 14, and use the fixing bolt 9 to fix the positioning ring 1 to a suitable position on the crossbeam 3 through the strip-shaped fixing hole 15. Pass the loading hub 10 through the middle of the positioning ring 1 and through the entire crossbeam 3. Secure it to the loading hub cover 2 through the external threads on both sides of the loading hub 10. The loading hub cover 2 prevents the loading hub 10 from moving horizontally and serves a positioning function. Remove the fixing bolt 12 and adjust the adjustable angle plate. Angle 5 is used to make it horizontal. Spring washers are used at the fixing bolt 12. Fix the fixing bolt 12 and fix the adjustable angle plate 5 to keep it horizontal on the loading arm 4. Tighten the long bolt 11. The adjustable angle plate 5 has a groove so that the long bolt 11 can be fixed vertically at different angles to ensure the loading angle. Since the track gauge needs to be maintained at 1435mm, the track gauge will change after the angle is adjusted. Therefore, different sizes of adjustment shims 6 are used. The adjustment shims 6 are made of steel. The track gauge is maintained by adding or removing the adjustment shims 6. The adjustment shims 6 are connected to each other and to the loading arm 4 by bolts.

[0026] Compared with related technologies, the multi-angle loading device for fastener system with amorphous coating provided by this utility model has the following advantages:

[0027] This utility model provides a multi-angle loading device for a fastener system using an amorphous coating. The loading head is treated with an amorphous coating to significantly increase its surface hardness and corrosion resistance. Furthermore, the loading head and the loading frame are designed as separate connections, which significantly increases the service life.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-angle loading device for a fastener system employing an amorphous coating, characterized in that, include: A crossbeam has two symmetrically arranged adjustment holes, each containing a loading hub. Two positioning rings are symmetrically fixed to the outer side of the loading hub, with their closest sides contacting the two sides of the crossbeam. Above the adjustment holes are multiple bolt adjustment holes on the crossbeam. Each positioning ring has a strip-shaped fixing hole containing a fixing bolt threaded into the bolt adjustment hole. A loading arm is fitted onto the outer side of the loading hub, contacting the two positioning rings. Two fixing bolts are symmetrically arranged on the loading arm, with an adjustable angle plate installed between them. The adjustable angle plate shares a long bolt with the crossbeam. A detachable distance adjustment pad is installed at the bottom of the loading arm, and an amorphous coated loading head is detachably installed at the bottom of the adjustment pad, contacting the sample to be tested.

2. The multi-angle loading device for a fastener system with an amorphous coating according to claim 1, characterized in that, Both ends of the loading hub are threaded with loading hub covers.

3. The multi-angle loading device for a fastener system with an amorphous coating according to claim 1, characterized in that, The two ends of the long bolt pass through the crossbeam and the adjustable angle plate, respectively. The long bolt is provided with a plurality of first locking nuts, which are connected to the crossbeam or the adjustable angle plate.

4. The multi-angle loading device for a fastener system with an amorphous coating according to claim 1, characterized in that, A second locking nut is fixedly installed on the outside of the fixing bolt, and the second locking nut is in contact with the loading arm.

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