Multi-type fastener universal test sleeper
By designing a universal test sleeper with multiple types of fasteners, the problems of adaptability of existing test carriers and rail stability were solved, and the adaptability of multiple types of fasteners and improvement of fatigue test accuracy were achieved.
Patent Information
- Application Number
- CN202423023518.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing test carrier cannot adapt to different types of fasteners, and the rails have poor stability during fatigue tests, affecting the test accuracy.
A universal test sleeper with multiple types of fasteners was designed, which includes a sleeper body and a pad. The pad is provided with connection holes, which can adapt to various types of fasteners. The rails are fixed with bolts, and the limiters and rubber pads are used to keep the rails stable and transmit vibrations.
It achieves the adaptation of multiple types of fasteners and the stability of rails in fatigue tests, improving the test accuracy and effect.
Smart Images
Figure CN223481581U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway equipment technology, and in particular to a universal test sleeper with multiple fasteners. Background Technology
[0002] Rail fasteners are intermediate components connecting rails and sleepers. They require reliable connections, simple structures, easy assembly and disassembly, and properties such as elasticity, vibration damping, and insulation. Different types of sleepers and ballastless tracks use different fasteners. Common fastener types include wooden sleeper fasteners (ordinary spikes and iron pads) and concrete sleeper fasteners (plate type, arched spring type, and elastic clip type, etc.). Rail fasteners are crucial for improving track accuracy, ensuring track smoothness, providing track insulation and elastic comfort, and ensuring the safe, comfortable, and stable operation of high-speed trains at high speeds.
[0003] Before a qualified fastener product is put into formal use, it usually needs to undergo a fatigue test to determine the quality of the fastener and observe whether there are cracks or other damage on its surface.
[0004] However, the existing test carriers (sleepers) have a relatively simple structure and cannot be adapted to different types of fasteners, thus reducing their applicability. In addition, the rail stability is poor during fatigue testing, which affects the test accuracy and results in unsatisfactory performance. Utility Model Content
[0005] The purpose of this utility model is to solve the above-mentioned problems by providing a universal test sleeper with multiple fasteners that can be adapted to various types of fasteners and can keep the rail stable during fatigue testing, thus meeting the requirements of rail vibration testing.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a multi-type fastener universal test sleeper, including a sleeper body, an integral pad on the surface of the sleeper body, multiple sets of connecting holes equidistantly arranged on the pad, fasteners on the pad, and a rail for testing its fatigue degree on the fasteners, with the bottom sides of the rail limited within the fasteners.
[0007] Preferably, the sleeper body has an internal hollow structure, and the pad is fixed to the surface of the sleeper body by a first bolt.
[0008] Preferably, the fastener includes a fastener base plate, a first limiting member and a second limiting member, the first limiting member and the second limiting member are disposed on the surface of the fastener base plate, the fastener base plate, the first limiting member and the second limiting member are integral, and the rail is disposed between the first limiting member and the second limiting member.
[0009] Preferably, the two ends of the fastener base plate are fixedly connected to the pad by the second bolts, the second bolts correspond to the matching connection holes, and the bottom surface of the pad is provided with a bolt sleeve that mates with the second bolts. The fastener base plate is fixed to the pad by the second bolts and the bolt sleeve.
[0010] Preferably, the fastener base plate is provided with a rubber pad between the first limiting member and the second limiting member, and the rail is placed on the rubber pad.
[0011] Preferably, the first limiting member and the second limiting member are provided with limiting corners on opposite sides, and the limiting corners always press against the surfaces of both sides of the rail.
[0012] This utility model discloses a universal test sleeper with multiple fasteners, comprising a sleeper body, an integral pad on the surface of the sleeper body, multiple sets of connecting holes evenly spaced on the pad, fasteners on the pad, and a rail for testing its fatigue level mounted on the fasteners. The bottom sides of the rail are confined within the fasteners. The sleeper body has an internal hollow structure, and the pad is fixed to the surface of the sleeper body by a first bolt. Compared with the prior art, this universal test sleeper with multiple fasteners has the advantages of being able to adapt to various types of fasteners and keeping the rail stable during fatigue testing, thus meeting the requirements of rail vibration testing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of the universal test sleeper with multiple fasteners according to this utility model. Figure 1 .
[0014] Figure 2 This is a schematic diagram of the structure of the universal test sleeper with multiple fasteners according to this utility model. Figure 2 .
[0015] Figure 3 This utility model Figure 1 A magnified structural diagram of point A in the middle.
[0016] In the diagram: 1. Sleeper body; 2. Pad plate; 21. Connecting hole; 3. First bolt; 4. Fastener; 41. Fastener base plate; 42. First limiting component; 43. Second limiting component; 44. Limiting corner; 5. Second bolt; 6. Bolt sleeve; 7. Rail; 8. Rubber pad plate. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0018] Please refer to Figure 1-3A universal test sleeper with multiple fasteners includes a sleeper body 1. The surface of the sleeper body 1 is provided with an integral pad 2. The pad 2 is provided with multiple sets of connecting holes 21 at equal intervals. The pad 2 is provided with fasteners 4. Different fasteners 4 can correspond to the connecting holes 21 at different positions, which can increase the scope of application and improve the compatibility between the sleeper body 1 and the fasteners 4. It can detect the fatigue degree of different fasteners. The fasteners 4 are provided with rails 7 for testing their fatigue degree. The bottom sides of the rails 7 are limited within the fasteners 4.
[0019] During the fatigue test, an external vibration device was used to vibrate the rail 7, causing it to vibrate up to a million times over a period of half a month. The vibration was transmitted to the fastener 4 to conduct a fatigue test. After repeated vibrations over a long period of time, the surface of the fastener 4 was observed to see if any damage or cracks occurred.
[0020] In this embodiment, the sleeper body 1 has an internal hollow structure, and the pad 2 is fixed to the surface of the sleeper body 1 by the first bolt 3. That is to say, the sleeper body 1 and the pad 2 are integrated by the first bolt 3.
[0021] Specifically, the fastener 4 includes a fastener base plate 41, a first limiting member 42 and a second limiting member 43. The first limiting member 42 and the second limiting member 43 are disposed on the surface of the fastener base plate 41. The fastener base plate 41, the first limiting member 42 and the second limiting member 43 are integral. The rail 7 is disposed between the first limiting member 42 and the second limiting member 43.
[0022] When different models of fasteners 4 need to be tested, fasteners 4 will be adapted to the connection holes 21 at different positions so that the whole can fit with the pad. The two ends of the fastener base plate 41 are fixedly connected to the pad plate 2 by the second bolts 5. The second bolts 5 correspond to the adapted connection holes 21. The bottom surface of the pad plate 2 is provided with bolt sleeves 6 that mate with the second bolts 5. The fastener base plate 41 is fixed to the pad plate 2 by the second bolts 5 and the bolt sleeves 6. At this time, the sleeper body 1, the pad plate 2, the fastener base plate 41, and the rail 7 form a whole, which can effectively transmit vibration and improve the accuracy of fatigue test.
[0023] In addition, the fastener base plate 41 is provided with a rubber pad 8 between the first limiting member 42 and the second limiting member 43. The rail 7 is placed on the rubber pad 8. The rubber pad 8 can play a buffering role and prevent the impact force from being directly transmitted to the pad 2 below.
[0024] As a preferred embodiment, the first limiting member 42 and the second limiting member 43 are provided with limiting corners 44 on opposite sides. The limiting corners 44 always press against the surfaces of both sides of the rail 7. After the first limiting member 42 and the second limiting member 43 on both sides of the rail 7 are pressed and limited by the limiting corners 44, they can remain fixed, so as to stabilize the rail 7 during long-term and repeated vibrations and effectively transmit the vibration.
[0025] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A universal test sleeper with multiple fastener types, characterized in that, The system includes a sleeper body, the surface of which is provided with an integral pad, the pad having multiple sets of connecting holes equidistantly arranged, fasteners on which a rail for testing its fatigue level is mounted, and the bottom sides of the rail being confined within the fasteners.
2. The universal test sleeper with multiple fasteners according to claim 1, characterized in that, The sleeper body has an internal hollow structure, and the pad is fixed to the surface of the sleeper body by the first bolt.
3. The universal test sleeper with multiple fasteners according to claim 2, characterized in that, The fastener includes a fastener base plate, a first limiting member and a second limiting member. The first limiting member and the second limiting member are disposed on the surface of the fastener base plate. The fastener base plate, the first limiting member and the second limiting member are integral. The rail is disposed between the first limiting member and the second limiting member.
4. The universal test sleeper with multiple fasteners according to claim 3, characterized in that, The two ends of the fastener base plate are fixedly connected to the pad plate by the second bolts. The second bolts correspond to the matching connection holes. The bottom surface of the pad plate is provided with a bolt sleeve that mates with the second bolt. The fastener base plate is fixed to the pad plate by the second bolts and the bolt sleeve.
5. The universal test sleeper with multiple fasteners according to claim 4, characterized in that, The fastener base plate is provided with a rubber pad between the first limiting member and the second limiting member, and the rail is placed on the rubber pad.
6. The universal test sleeper with multiple fasteners according to claim 5, characterized in that, The first limiting member and the second limiting member are provided with limiting corners on opposite sides, and the limiting corners always press against the surfaces of both sides of the rail.