Fastener system multi-angle loading device adopting amorphous coating

Abstract

The invention provides a fastener system multi-angle loading device adopting an amorphous coating. The fastener system multi-angle loading device adopting the amorphous coating comprises a cross beam, two adjusting holes are symmetrically formed in the cross beam, loading hubs are arranged in the adjusting holes, two positioning circular rings are symmetrically and fixedly installed on the outer sides of the loading hubs, and the two positioning circular rings are symmetrically and fixedly installed on the outer sides of the two positioning circular rings. One sides, close to each other, of the two positioning circular rings make contact with the two sides of the cross beam respectively, a plurality of bolt adjusting holes formed in the cross beam are formed above the adjusting holes, strip-shaped fixing holes are formed in the positioning circular rings, and fixing bolts are arranged in the strip-shaped fixing holes. The fastener system multi-angle loading device adopting the amorphous coating has the advantages that the amorphous coating mode is adopted, amorphous surface treatment is conducted on the loading head, the surface hardness and corrosion resistance of the loading head are greatly improved, the loading head and the loading frame are connected in a split mode, and the service life is remarkably prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of fastener detection equipment, and in particular to a multi-angle loading device for a fastener system using an amorphous coating. Background Art

[0002] Rail fasteners are crucial components in track structures, their primary function being to maintain a reliable connection between the rails and the foundation beneath them. To verify their ability to ensure safe operation and compare the performance of different fasteners under the same conditions, assembly fatigue testing of the fasteners is conducted in accordance with railway industry standards. This involves assembling the fasteners on a single rail sleeper and applying dynamic vertical and lateral forces to the fasteners on both sides of the sleeper using a loading frame to simulate the actual stress conditions of the fasteners. After a prescribed number of tests, test data is obtained.

[0003] The prior art discloses a fastener fatigue test loading frame that can accommodate multiple loading angles. The frame comprises a load-bearing beam, two sliders, two ear-seat welded parts, two limit blocks, and two fixed shafts. The load-bearing beam is arranged horizontally and has a bilaterally symmetrical rectangular square hole. Each of the rectangular square holes is equipped with a slider. The two fixed shafts pass through the two sliders. The top ends of the two ear-seat welded parts are connected to the load-bearing beam via the fixed shaft. The tail ends of the fixed shafts pass through the ear-seat welded parts and are installed with a retaining sleeve. The bottom ends of the ear-seat welded parts are each provided with a contact angle. Two limit blocks are symmetrically arranged on the bottom surface of the load-bearing beam, and the side surfaces of the limit blocks are made into corresponding bevels. Long bolts are provided on the bottom surfaces of both ends of the load-bearing beam. Nuts are provided at the bottom of the long bolts to limit the opening angle of the ear-seat welded parts. However, the portion of the loading frame that contacts the rail is extremely susceptible to wear, which can easily lead to the entire loading frame being scrapped.

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

[0005] The technical problem solved by the present invention is to provide a multi-angle loading device for a fastener system using an amorphous coating, which uses an amorphous coating to perform amorphous surface treatment on the loading head, greatly increasing its surface hardness and corrosion resistance, and setting the loading head and the loading frame to be connected in a split manner, thereby significantly increasing the service life.

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

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

[0008] Preferably, both ends of the long bolt pass through the cross beam and the adjustable angle plate respectively, and a plurality of first locking nuts are provided on the long bolt, and the first locking nuts are connected to the cross beam or the adjustable angle plate.

[0009] Preferably, a second locking nut is fixedly mounted on the outer side 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 in contact with the sample to be tested is plated with an Ir-Ni-Ta coating 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 a fastener system using an amorphous coating provided by the present invention has the following beneficial effects: The present invention provides a multi-angle loading device for a fastener system using an amorphous coating. The amorphous coating is used to perform an amorphous surface treatment on the loading head, which greatly increases its surface hardness and corrosion resistance. The loading head and the loading frame are set to be connected in a split manner, which significantly increases the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a preferred embodiment of a multi-angle loading device for a fastener system using an amorphous coating provided by the present invention; Figure 2 for Figure 1 The side view structural diagram shown; Figure 3for Figure 1 The XRD pattern of the amorphous coating loading head coating on the steel surface is shown.

[0013] Numbers in the figure: 1. Positioning ring, 2. Loading hub cover, 3. Crossbeam, 4. Loading arm, 5. Adjustable angle plate, 6. Adjustable distance 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. Bar fixing hole. DETAILED DESCRIPTION

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Please refer to Figure 1 、 Figure 2 and Figure 3 ,in, Figure 1 A schematic structural diagram of a preferred embodiment of a multi-angle loading device for a fastener system using an amorphous coating provided by the present invention; Figure 2 for Figure 1 The side view structural diagram shown; Figure 3 for Figure 1 The XRD spectrum of the amorphous coating loading head coating on the steel surface is shown. The multi-angle loading device of the fastener system using amorphous coating includes: a beam 3, two adjustment holes 13 are symmetrically provided on the beam 3, a loading hub 10 is provided in the adjustment hole 13, two positioning rings 1 are symmetrically fixedly installed on the outside of the loading hub 10, and the two positioning rings 1 are in contact with the two sides of the beam 3 respectively on the side close to each other, and a plurality of bolt adjustment holes 14 are provided on the beam 3 above the adjustment hole 13, a strip fixing hole 15 is provided on the positioning ring 1, and a fixing bolt 9 is provided in the strip fixing hole 15. The fixed bolt 9 is threadedly installed in the bolt adjustment hole 14, and the outer side of the loading hub 10 is sleeved with a loading arm 4, which is in contact with the two positioning rings 1. Two fixing bolts 12 are symmetrically provided on the loading arm 4, and the same adjustable angle plate 5 is installed between the two fixing bolts 12. The same long bolt 11 is provided on the adjustable angle plate 5 and the beam 3. A distance adjusting pad 6 is installed at the bottom of the loading arm 4, and an amorphous coating loading head 7 is fixedly installed at the bottom of the distance adjusting pad 6, and the amorphous coating loading head 7 is in contact with the sample to be tested 8.

[0016] Both ends of the loading hub 10 are threadedly sleeved with a loading hub cover 2 .

[0017] Both ends of the long bolt 11 pass through the crossbeam 3 and the adjustable angle plate 5 respectively. A plurality of first locking nuts are provided on the long bolt 11 , and the first locking nuts are connected to the crossbeam 3 or the adjustable angle plate 5 .

[0018] A second locking nut is fixedly mounted on the outer side of the fixing bolt 12 , and the second locking nut is in contact with the loading arm 4 .

[0019] The surface of the amorphous coating loading head 7 in contact with the test sample 8 is plated with an Ir-Ni-Ta coating by magnetron sputtering, and the atomic ratio of Ta, Ir, and Ni is 6:2:2.

[0020] In the present invention, the amorphous coating loading head 7 is made of a steel material with an Ir-Ni-Ta coating plated 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. At the same time, the steel substrate maintains the toughness and fatigue resistance of the loading head.

[0021] The working principle of the multi-angle loading device for a fastener system using an amorphous coating provided by the present invention is as follows: When changing the loading angle, remove the positioning ring 1 from the beam 3. There is a row of bolt adjustment holes 14 on the beam 3, and a strip fixing hole 15 on the positioning ring 1. Select the bolt adjustment hole 14 at the appropriate position, and fix the positioning ring 1 to the appropriate position on the beam 3 through the fixing bolts 9 and the strip fixing holes 15 on the positioning ring 1. Pass the loading hub 10 through the middle of the positioning ring 1 and through the entire beam 3. Fasten it to the loading hub cover 2 through the external threads on both sides of the loading hub 10. The function of the loading hub cover 2 is to prevent the loading hub 10 from moving horizontally and play a positioning role. Remove the fixing bolts 12 and adjust the adjustable angle plate. 5 to make it horizontal, use spring washers at the fixing bolts 12, tighten the fixing bolts 12, fix the adjustable angle plate 5, fix it on the loading arm 4 to keep it horizontal, tighten the long bolts 11, and there are slots on the adjustable angle plate 5 so that the long bolts 11 can be fixed vertically at different angles to ensure the loading angle. Since the track gauge needs to be 1435mm, the track gauge will definitely change after adjusting the angle, so different sizes of distance adjusting pads 6 are used. The distance adjusting pads 6 are made of steel. The track gauge is maintained by adding or reducing the distance adjusting pads 6. The distance adjusting pads 6 and the distance adjusting pads 6 and the loading arm 4 are all connected by bolts.

[0022] Compared with related technologies, the multi-angle loading device for a fastener system using an amorphous coating provided by the present invention has the following beneficial effects: The present invention provides a multi-angle loading device for a fastener system using an amorphous coating. The amorphous coating is used to perform an amorphous surface treatment on the loading head, which greatly increases its surface hardness and corrosion resistance. The loading head and the loading frame are set to be connected in a split manner, which significantly increases the service life.

[0023] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-angle loading device for a fastener system using an amorphous coating, characterized in that: include: The lockhole that is formed on the locking cam is formed on the locking cam, and the locking cam has two locking cams on the top and the locking cam of the locking cam, and the locking cam is locked.

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

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

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

5. The multi-angle loading device for a fastener system using an amorphous coating according to claim 1, characterized in that: The surface of the amorphous coating loading head in contact with the sample to be tested is plated with an Ir-Ni-Ta coating by magnetron sputtering, and the atomic ratio of Ta, Ir and Ni is 6:2:2.

Images