Anti-cracking power frame for rail fatigue test

Abstract

The utility model relates to power frame technical field, and disclose a kind of anti-cracking rail fatigue test power frame, including base, the top of base is provided with pipe support, the top of pipe support is provided with top plate, the bottom of top plate is provided with mounting plate, first reinforcing rib and second reinforcing rib are provided on pipe support, first reinforcing rib is fixedly connected with the bottom of mounting plate the utility model is by being provided between pipe support and mounting plate first reinforcing rib, being provided between pipe support and base second reinforcing rib, the connection rigidity of key component can be significantly improved, base is connected by the cross of the side plate, transverse diaphragm and vertical diaphragm of symmetrical arrangement, and the auxiliary reinforcement of reinforcing plate to transverse diaphragm and vertical diaphragm, form multidirectional stress support frame, stress produced in the process of dispersion test due to vibration, pressure, avoid the deformation, cracking problem caused by weak connection of traditional equipment, ensure the structural stability of power frame in long-term use.

Description

Technical Field

[0001] This utility model relates to the field of power frame technology, specifically a crack-resistant power frame for rail fatigue testing. Background Technology

[0002] During railway transportation, rails must withstand the repeated effects of train loads over long periods. This cyclical stress leads to gradual accumulation of damage in the rail material, potentially causing fatigue fracture and seriously threatening train safety. Therefore, fatigue testing of rails is necessary. In the field of rail fatigue testing, the dynamic frame used to fix and support the rails is a key piece of equipment to ensure the accuracy of the test.

[0003] In use, the connection strength of core components such as the base, pipe support and mounting plate of the traditional power frame is limited. When subjected to the vibration, pressure and the load of the test device and the rail itself for a long time, the connection parts are prone to deformation and cracking due to stress concentration, which may even affect the stability of the overall structure and interfere with the accuracy of fatigue test data. Therefore, a crack-resistant rail fatigue test power frame is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a crack-resistant dynamic test frame for rail fatigue testing, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a crack-resistant rail fatigue test power frame, including a base, a tube support provided on the top of the base, a top plate provided on the top of the tube support, an mounting plate provided on the bottom of the top plate, a first reinforcing rib and a second reinforcing rib provided on the tube support, the first reinforcing rib being fixedly connected to the bottom of the mounting plate, and the second reinforcing rib being fixedly connected to the top of the base.

[0006] Preferably, the base is provided with side plates, and the number of side plates is several, which are symmetrically arranged on both sides of the base.

[0007] Preferably, the tube support is fixedly connected through the top of the base, a horizontal partition is fixedly connected to the bottom of the base, the horizontal partition is fixedly connected to the tube support, and a vertical partition is fixedly connected to the inner wall of the base, the vertical partition being fixedly connected to the horizontal partition.

[0008] Preferably, a reinforcing plate is fixedly connected to the inner wall of the base, the reinforcing plate is fixedly connected to the horizontal partition, the number of the reinforcing plates is twice that of the vertical partition, and they are symmetrically arranged on both sides of the vertical partition.

[0009] Preferably, a rail support is bolted to the top of the base, a double-headed cylinder is installed inside the rail support, a clamping plate is fixedly connected to the output end of the double-headed cylinder, a clamping bolt is threaded through the top of the clamping plate, a pressure plate is rotatably connected to the bottom of the clamping bolt, and the pressure plate is slidably connected to the inner wall of the clamping plate.

[0010] Preferably, a baffle is bolted to the top of the base, and both the rail support and the baffle are located in the middle of the adjacent pipe supports.

[0011] The present invention adopts the above technical solution, which can bring the following beneficial effects: 1. This anti-cracking rail fatigue test dynamic frame significantly improves the connection rigidity of key components by setting a first reinforcing rib between the tube support and the mounting plate, and a second reinforcing rib between the tube support and the base. The base forms a multi-directional force support frame through the cross connection of symmetrically arranged side plates, horizontal diaphragms and vertical diaphragms, and the auxiliary reinforcement of the horizontal and vertical diaphragms by the reinforcing plates. This disperses the stress generated by vibration and pressure during the test, avoids the deformation and cracking problems caused by weak connections in traditional equipment, and ensures the structural stability of the dynamic frame during long-term use.

[0012] 2. This anti-cracking rail fatigue test power frame uses a double-headed cylinder on the rail support to drive the clamping plate to hold the rail web, and the clamping bolts to drive the pressure plate to press the rail bottom. Combined with the two ends of the baffle limiting the rail, the rail is fixed on the rail support, preventing the rail from shaking or displacing during the test, thus affecting the test results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a schematic diagram of the bottom of the present invention; Figure 3 This is a schematic diagram of the rail support of this utility model.

[0014] In the diagram: 1. Base; 2. Pipe support; 3. Top plate; 4. Mounting plate; 5. First reinforcing rib; 6. Second reinforcing rib; 7. Side plate; 8. Horizontal partition; 9. Vertical partition; 10. Reinforcing plate; 11. Rail support; 12. Double-headed cylinder; 13. Clamping plate; 14. Clamping bolt; 15. Pressure plate; 16. Baffle. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-3 One embodiment of this utility model is: a crack-resistant rail fatigue test power frame, including a base 1, a tube support 2 on the top of the base 1, a top plate 3 on the top of the tube support 2, a lifting ring on the top of the top plate 3 for easy hoisting of the power frame, and a mounting plate 4 at the bottom of the top plate 3. The mounting plate 4 has mounting holes at the bottom corners of the bottom of the mounting plate 4. The mounting holes are provided to facilitate the installation of the rail fatigue test device on the mounting plate 4 with bolts for fatigue testing of the rail on the rail support 11.

[0017] The pipe support 2 is provided with a first reinforcing rib 5 and a second reinforcing rib 6. The first reinforcing rib 5 is fixedly connected to the bottom of the mounting plate 4. The first reinforcing rib 5 is used to improve the connection stability between the mounting plate 4 and the pipe support 2. The second reinforcing rib 6 is fixedly connected to the top of the base 1. The second reinforcing rib 6 is used to improve the connection stability between the pipe support 2 and the base 1. The base 1 is provided with side plates 7. There are several side plates 7, which are symmetrically arranged on both sides of the base 1. The side plates 7 help to improve the overall structural strength and stability of the base 1. When the equipment is subjected to external force, the symmetrically distributed side plates 7 can more evenly distribute the stress, avoid excessive local stress on the base 1 and damage caused by it, ensure the stable operation of the rail fatigue testing device, and thus ensure the accuracy of the fatigue test results of the rail. The pipe support 2 is fixedly connected through the top of the base 1. A transverse partition 8 is fixedly connected to the bottom of the base 1. The transverse partition 8 is fixedly connected to the pipe support 2. The horizontal diaphragm 8 enhances the horizontal rigidity of the base 1, disperses the force transmitted from the tube support 2, and prevents deformation or damage to the base 1 due to localized stress concentration, making the overall structure of the base 1 more stable and ensuring the stability of the rail fatigue testing device during operation. The inner wall of the base 1 is fixedly connected to the vertical diaphragm 9, which is fixedly connected to the horizontal diaphragm 8. By setting the vertical diaphragm 9, the structural strength of the base 1 in the vertical direction is improved. Together with the horizontal diaphragm 8, they form the supporting frame of the inner part of the base 1, further strengthening the overall structural stability of the base 1 and providing a reliable supporting foundation for the upper components. The inner wall of the base 1 is fixedly connected to the reinforcing plate 10, which is fixedly connected to the horizontal diaphragm 8. By setting the reinforcing plate 10, the connection between the horizontal diaphragm 8 and the vertical diaphragm 9 is further strengthened, as well as the local structural strength of the base 1 is enhanced. Through symmetrical distribution, stress can be more evenly dispersed. The number of reinforcing plates 10 is twice that of the vertical diaphragm 9, and they are symmetrically arranged on both sides of the vertical diaphragm 9.

[0018] Six rail supports 11 are bolted to the top of the base 1. These six rail supports 11 are symmetrically arranged on both sides of the pipe support 2. The rail supports 11 support the rails. During fatigue testing, the rails are placed on the rail supports 11. The rail supports 11 must withstand the weight of the rails themselves and various stresses generated during the test to ensure stable placement of the rails. A double-headed cylinder 12 is installed inside the rail support 11. A clamping plate 13 is fixedly connected to the output end of the double-headed cylinder 12. A clamping bolt 14 is threaded through the top of the clamping plate 13. A pressure plate 15 is rotatably connected to the bottom of the clamping bolt 14, and the pressure plate 15 is connected to the clamping plate 1. The inner wall of the base 1 is slidably connected. Through the cooperation of components such as the clamping plate 13, the clamping bolt 14, and the pressure plate 15, the rail can be firmly fixed on the rail support 11, so that the rail remains stable during the fatigue test, ensuring that the test can be carried out smoothly and accurate fatigue test data can be obtained. The top of the base 1 is bolted with a baffle 16. By setting the baffle 16, the rail installed on the rail support 11 is limited to prevent the rail from shifting during the test. It can work with the rail support 11 to form a certain constraint on the rail, enhance the stability of the rail installation, and avoid the fatigue test results being affected by the rail shaking. The rail support 11 and the baffle 16 are both located in the middle position of the adjacent pipe support 2.

[0019] Working principle: The rail fatigue testing device is installed at the bottom of the mounting plate 4 using bolts and mounting holes. The rail to be tested is then placed on the rail support 11, directly below the rail fatigue testing device. Two baffles 16 limit the ends of the rail. Simultaneously, the double-headed cylinder 12 is activated to move the clamping plate 13, clamping and fixing the rail web. Then, the clamping bolt 14 is rotated, causing the pressure plate 15 to move downwards, pressing the bottom of the rail and thus fixing the rail to the rail support 11. This prevents the rail from shaking during the fatigue test, which would affect the test results.

[0020] This utility model provides a crack-resistant dynamic test frame for rail fatigue testing. There are many methods and approaches to implement this technical solution; the above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A crack-resistant rail fatigue test dynamic frame, comprising a base (1), a tube support (2) being provided on the top of the base (1), and a top plate (3) being provided on the top of the tube support (2), characterized in that: The bottom of the top plate (3) is provided with an installation plate (4), and the pipe support (2) is provided with a first reinforcing rib (5) and a second reinforcing rib (6). The first reinforcing rib (5) is fixedly connected to the bottom of the installation plate (4), and the second reinforcing rib (6) is fixedly connected to the top of the base (1). The base (1) is provided with a side plate (7). There are several side plates (7), and they are symmetrically arranged on both sides of the base (1). The pipe support (2) is fixedly connected through the top of the base (1). The bottom of the base (1) is fixedly connected with a horizontal partition (8). The horizontal partition (8) is fixedly connected to the pipe support (2). The inner wall of the base (1) is fixedly connected with a vertical partition (9). The vertical partition (9) is fixedly connected to the horizontal partition (8).

2. The anti-cracking rail fatigue test dynamic frame according to claim 1, characterized in that: A reinforcing plate (10) is fixedly connected to the inner wall of the base (1). The reinforcing plate (10) is fixedly connected to the horizontal partition (8). The number of reinforcing plates (10) is twice that of the vertical partition (9), and they are symmetrically arranged on both sides of the vertical partition (9).

3. The anti-cracking rail fatigue test dynamic frame according to claim 2, characterized in that: A rail support (11) is bolted to the top of the base (1). A double-headed cylinder (12) is installed inside the rail support (11). A clamping plate (13) is fixedly connected to the output end of the double-headed cylinder (12). A clamping bolt (14) is threaded through the top of the clamping plate (13). A pressure plate (15) is rotatably connected to the bottom of the clamping bolt (14), and the pressure plate (15) is slidably connected to the inner wall of the clamping plate (13).

4. The anti-cracking rail fatigue test dynamic frame according to claim 3, characterized in that: A baffle (16) is bolted to the top of the base (1), and both the rail support (11) and the baffle (16) are located in the middle of the adjacent pipe support (2).

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