A fatigue test device for railway fasteners with convenient adjustment

Abstract

The utility model discloses a convenient railway fastener fatigue test device of adjusting, including base, the symmetry of base top is equipped with the prop, and the prop top is connected with the support platform, and the support platform top is equipped with the vibrating mechanism, and the vibrating mechanism includes rubber support leg, and rubber support leg bottom is connected on the support platform, and the rubber support leg inside is connected with the shock absorber bottom, and the shock absorber top is connected in the workstation bottom, and the workstation bottom middle position is connected with the vibrating motor, and the workstation top is equipped with the positioning table, and the round tank is seted up on positioning table one side vertical board, and the other end of screw rod is connected with the clamping plate, and the clamping plate bottom center position is connected with the sliding block, and the positioning groove is seted up in the positioning table center position, and the clamping plate is slid through the sliding block and is connected in the positioning groove, and the vibration workbench is simulated railway fastener to suffer long -term low amplitude high -frequency vibration impact when railway operation through the vibrating motor, and the cooperation movable camera can realize the uninterrupted monitoring of railway fastener fatigue test of different height, angle.

Description

Technical Field

[0001] This utility model relates to the field of railway fasteners, specifically to a fatigue testing device for railway fasteners that is easy to adjust. Background Technology

[0002] Railway fasteners, as key components of the track structure, play a vital role in maintaining track stability. Fastener assembly fatigue testing is an important test item for evaluating the long-term performance of fasteners. During the long-term operation of my country's high-speed railways, with the continuous increase in train speed and operating density, the interaction between vehicles and tracks becomes increasingly intense. In actual operation, railway fasteners are subject to repeated impacts and vibrations generated by passing trains. If fasteners are damaged due to repeated vibration fatigue, it may lead to track structure instability and increase the risk of derailment or other safety accidents.

[0003] However, currently, when conducting vibration fatigue life tests on rail fasteners, samples are usually sent to a specialized laboratory, where a dedicated testing channel is used with special installation fixtures for assembly fatigue testing. This process is cumbersome and consumes a lot of manpower and resources.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a railway fastener fatigue testing device that is easy to adjust, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A conveniently adjustable fatigue testing device for railway fasteners includes a base, symmetrically arranged support columns on the top of the base, a support platform connected above the support columns, and a vibration mechanism above the support platform.

[0008] The vibration mechanism includes rubber legs, the bottom of which is connected to a support platform. A shock absorber is fitted inside the rubber legs, and the top of the shock absorber is connected to the bottom of the worktable. A vibration motor is connected to the middle of the bottom of the worktable. A positioning platform is provided above the worktable. A circular groove is opened on one side of the vertical plate of the positioning platform. A screw is installed in the circular groove. A handle is connected to one end of the screw, and a clamping plate is connected to the other end. A slider is connected to the center of the bottom of the clamping plate. A positioning groove is opened at the center of the positioning platform, and the clamping plate is slidably connected to the positioning groove through the slider.

[0009] Furthermore, to make the workbench of the fastener fatigue testing device more stable, a side plate is connected to one side of the workbench, and screw holes are opened on the side plate. The workbench is connected to the fixed plate by bolts. A moving mechanism is provided in the middle of the fixed plate, and a support plate is provided on the back of the moving mechanism.

[0010] Furthermore, in order to better observe the condition of the railway fasteners during vibration, the moving mechanism includes a moving groove connected to the middle of the worktable. A reciprocating screw is provided inside the moving groove, and a moving sleeve is threaded onto the reciprocating screw. One end of the reciprocating screw is connected to the output end of the motor.

[0011] Furthermore, in order to record the changes of railway fasteners during the vibration fatigue test, a bracket was welded onto the movable sleeve, which extended to one side of the workbench and had a camera at its top.

[0012] Furthermore, to prevent accidental injury to others from broken and flying parts of the railway fasteners during testing, a protective cover is provided above the base, a slot is provided at the connection between the base and the protective cover, and transparent windows are provided on all four sides of the protective cover.

[0013] Furthermore, in order to reinforce the entire railway fastener fatigue testing device, screw holes are provided on both sides of the bottom of the fixing plate, and the fixing plate is connected to the base by bolts.

[0014] Furthermore, in order to reinforce the entire railway fastener fatigue testing device, a support plate is connected to the back of the fixed plate, and screw holes are opened on both sides of the bottom of the support plate. The support plate is connected to the base by bolts.

[0015] The beneficial effects of this utility model are as follows: The vibration motor and vibrating workbench simulate the long-term, low-amplitude, high-frequency vibration impact suffered by railway fasteners during railway operation. Combined with a movable camera, this enables continuous monitoring of railway fastener fatigue tests at different heights and angles. Multiple shock absorbers are installed at the bottom of the workbench, with rubber legs fitted around the bottom of each shock absorber. Various support structures are also installed at the bottom and back of the workbench, providing layered shock absorption and reducing the vibration generated by the vibration motor. A protective cover is provided on the outside of the entire testing device to prevent material breakage and splashing of railway fasteners due to fatigue during the test. A movable mechanism allows for adjustable camera height, and by adjusting the positioning platform, screw, and clamping plate, vibration fatigue tests can be conducted on various types of railway fasteners. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of a conveniently adjustable fatigue testing device for railway fasteners according to an embodiment of the present utility model;

[0018] Figure 2 This is a structural diagram of the vibration mechanism in a conveniently adjustable railway fastener fatigue testing device according to an embodiment of the present utility model;

[0019] Figure 3 This is a structural diagram of the moving mechanism in a conveniently adjustable railway fastener fatigue testing device according to an embodiment of the present utility model;

[0020] Figure 4 This is a rear view of a conveniently adjustable fatigue testing device for railway fasteners according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Base; 2. Slot; 3. Protective cover; 4. Support column; 5. Support platform; 6. Vibration mechanism; 601. Rubber support leg; 602. Shock absorber; 603. Vibration motor; 604. Workbench; 605. Positioning platform; 606. Handle; 607. Screw; 608. Clamping plate; 609. Positioning groove; 7. Moving mechanism; 701. Moving groove; 702. Reciprocating lead screw; 703. Camera; 704. Bracket; 705. Moving sleeve; 706. Motor; 8. Fixing plate; 9. Support plate; 10. Screw hole. Detailed Implementation

[0023] 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.

[0024] According to an embodiment of the present invention, a conveniently adjustable fatigue testing device for railway fasteners is provided.

[0025] Example 1;

[0026] like Figure 1 and Figure 2As shown, a conveniently adjustable fatigue testing device for railway fasteners according to an embodiment of this utility model includes a base 1, a protective cover 3 on top of the base 1, a slot 2 at the connection between the base 1 and the protective cover 3, and transparent windows on all four sides of the protective cover 3 to observe the inside. The protective cover 3 covers the outside of the entire testing device to prevent material fracture and splashing of the railway fasteners due to fatigue during the test. Symmetrical support columns 4 are provided on top of the base 1, with reinforced support at the bottom. A support platform 5 is connected above the support columns 4, and a vibration mechanism 6 is provided above the support platform 5. The vibration mechanism 6 includes rubber legs 601, the bottom of which is connected to the support platform 5. A shock absorber 602 is sleeved inside the rubber legs 601. The shock absorber 602 is a hydraulic shock absorber. The top of the shock absorber 602 is connected to the bottom of a workbench 604. A vibration motor 603 is connected to the middle of the bottom of the workbench 604. The vibration motor 603 vibrates the workbench 604 to simulate the long-term low-amplitude high-frequency vibration impact suffered by railway fasteners during railway operation. A vibration motor 603 drives the worktable 604 to vibrate continuously. A positioning platform 605 is located above the worktable 604. A circular groove is formed on one side of the vertical plate of the positioning platform 605, and a screw 607 is installed in the groove. One end of the screw 607 is connected to a handle 606, and the other end is connected to a clamping plate 608. A slider is connected to the center of the bottom of the clamping plate 608. A positioning groove 609 is formed at the center of the positioning platform 605. The clamping plate 608 is slidably connected to the positioning groove 609 via the slider. Rotating the handle 606 at one end of the screw 607... 6. Clamp and fix the other end of the screw 607 to the railway fastener on the positioning table 605. By adjusting the positioning table 605, screw 607 and clamping plate 608, various types of railway fasteners can be fixed. Multiple shock absorbers 602 are set at the bottom of the workbench 604. Rubber support legs 601 are fitted at the bottom of the shock absorbers 602. Multiple support structures are set at the bottom and back of the workbench 604, which can play a layered shock absorption role, thereby reducing the vibration generated by the vibration motor 603 and improving the overall stability of the device during vibration test.

[0027] Example 2;

[0028] like Figure 1 , Figure 3 and Figure 4As shown, according to an embodiment of the present invention, a conveniently adjustable fatigue testing device for railway fasteners includes a side plate connected to one side of a workbench 604, with screw holes 10 on the side plate. One side of the workbench 604 is fixed to a fixing plate 8 by bolts. Screw holes 10 are provided on both sides of the bottom of the fixing plate 8. The fixing plate 8 is reinforced to the base 1 by bolts to improve stability. A moving mechanism 7 is provided in the middle of the fixing plate 8. The moving mechanism 7 includes a moving groove 701 connected to the middle of the workbench 604. A reciprocating screw 702 is provided inside the moving groove 701. A moving sleeve 705 is threaded onto the reciprocating screw 702. One end of the reciprocating screw 702 is connected to the output end of a motor 706. A bracket 704 is welded onto the moving sleeve 705. 04 extends to one side of the workbench 604 and has a camera 703 at the top. Driven by the reciprocating screw 702 driven by the motor 706, the moving sleeve 705 slides in the moving groove 701. The bracket 704 on the moving sleeve 705 carries the camera 703 and moves up and down. By adjusting the observation distance, the minute changes produced on the railway fasteners during the vibration test can be observed. The data from the camera 703 is directly transmitted to the computer, which is convenient for staff to view and analyze, saving time and manpower. The back of the moving mechanism 7 has a support plate 9, which is connected to the back of the fixed plate 8. The bottom sides of the support plate 9 have screw holes 10. The support plate 9 is connected to the base 1 by bolts. The support plate 9 provides secondary reinforcement to the fixed plate 8 to reduce the impact of the vibration motor 603 during vibration.

[0029] In summary, with the help of the above-mentioned technical solution of this utility model, when fatigue testing of railway fasteners is required, the railway fastener is placed on the positioning platform 605. The operator moves the screw 607 toward the railway fastener by rotating the handle 606 on the screw 607 until the rubber pad at the top of the screw 607 is squeezed and deformed, then stops rotating. The protective cover 3 is connected to the base 1. At this time, the vibration motor 603 is turned on, and the vibration motor 603 performs low-amplitude high-frequency vibration. The motor 706 is turned on, and the camera 703 is adjusted to the position to be observed. Then the motor 706 is turned off, and the camera 703 begins to record experimental data and transmit it to the computer. After the experiment is completed, the vibration motor 603 is turned off, the protective cover 3 is removed, and the railway fastener is taken out.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A conveniently adjustable fatigue testing device for railway fasteners, characterized in that, Includes a base (1), with symmetrical support columns (4) above the base (1), a support platform (5) connected above the support columns (4), and a vibration mechanism (6) above the support platform (5); The vibration mechanism (6) includes a rubber support leg (601), the bottom of which is connected to the support platform (5). The bottom end of the shock absorber (602) is sleeved inside the rubber support leg (601), and the top end of the shock absorber (602) is connected to the bottom of the workbench (604). A vibration motor (603) is connected to the middle of the bottom of the workbench (604). A positioning platform (605) is provided above the workbench (604). A circular groove is provided on one side of the vertical plate of the positioning platform (605). A screw (607) is provided in the circular groove. A handle (606) is connected to one end of the screw (607), and a clamping plate (608) is connected to the other end of the screw (607). A slider is connected to the center of the bottom of the clamping plate (608). A positioning groove (609) is provided at the center of the positioning platform (605), and the clamping plate (608) is slidably connected to the positioning groove (609) through the slider.

2. The easily adjustable fatigue testing device for railway fasteners according to claim 1, characterized in that, A side plate is connected to one side of the workbench (604), and a screw hole (10) is provided on the side plate. The workbench (604) is connected to the fixed plate (8) by bolts. A moving mechanism (7) is provided in the middle of the fixed plate (8), and a support plate (9) is provided on the back of the moving mechanism (7).

3. The easily adjustable fatigue testing device for railway fasteners according to claim 2, characterized in that, The moving mechanism (7) includes a moving groove (701), which is connected to the middle of the worktable (604). A reciprocating screw (702) is provided in the moving groove (701), and a moving sleeve (705) is threaded onto the reciprocating screw (702). One end of the reciprocating screw (702) is connected to the output end of the motor (706).

4. The easily adjustable fatigue testing device for railway fasteners according to claim 3, characterized in that, A bracket (704) is welded onto the movable sleeve (705). The bracket (704) extends toward the workbench (604) and has a camera (703) at its top.

5. The easily adjustable fatigue testing device for railway fasteners according to claim 1, characterized in that, A protective cover (3) is provided above the base (1), and a slot (2) is provided at the connection between the base (1) and the protective cover (3). The protective cover (3) has transparent windows on all four sides.

6. The easily adjustable fatigue testing device for railway fasteners according to claim 2, characterized in that, The fixing plate (8) has screw holes (10) on both sides of its bottom. The fixing plate (8) is connected to the base (1) by bolts.

7. The easily adjustable fatigue testing device for railway fasteners according to claim 2, characterized in that, The support plate (9) is connected to the back of the fixed plate (8). The support plate (9) has screw holes (10) on both sides of its bottom. The support plate (9) is connected to the base (1) by bolts.

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