Guide rail fatigue simulation detection device

Abstract

The utility model provides a guide rail fatigue simulation detection device relates to guide rail simulation detection technical field, including base, the upper end fixed connection of base has the frame, the front side electric connection of frame has the PLC control platform, the upper end mounting of PLC control platform has detection device, the inside installation of base has guide rail fixed component, through setting up guide rail fixed component, through displacement motor drive first screw rod, drive first, second clamping plate moves towards, realizes even controllable clamping to guide rail, cooperation antiskid rubber pad and adaptation recess, can prevent sliding, can also reduce the damage to guide rail surface, guarantee detection accuracy, with the adjustable stroke of screw rod and the auxiliary slide bar guide, can adapt to a variety of specifications guide rail, improve the versatility, automation drive replaces manual operation, reduces the intervention time and labor intensity, and flat key connection and high strength clamping plate structure durable, prolongs the service life of device.

Description

Technical Field

[0001] This utility model relates to the field of guide rail simulation testing technology, and in particular to a guide rail fatigue simulation testing device. Background Technology

[0002] In the rail transit industry, guide rails are the fundamental guiding components for train operation, and their performance and reliability are crucial. To ensure the safety and durability of guide rails in actual use, fatigue simulation testing is required. Traditional guide rail fatigue testing methods often employ manual clamping and loading, such as fixing the guide rail to a specific test bench using tools like wrenches, and then relying on manpower or simple mechanical devices to apply periodic loads to simulate the force exerted on the guide rail by the train during operation. This method has many shortcomings, such as difficulty in uniformly controlling clamping force, low loading accuracy, low operating efficiency, and high labor intensity. With the development of technology, although some improved mechanical clamping and loading devices have emerged, these devices are often complex in structure, have poor versatility, cannot adapt to various specifications of guide rails, and still need to be improved in terms of automation.

[0003] A search revealed that the document with publication number "CN222070124U" states that "this utility model discloses a miniature linear guide rail fatigue testing fixture, including a frame, a horizontal testing mechanism, a vertical testing mechanism, a lateral testing mechanism, and an inverted testing mechanism. The horizontal, vertical, lateral, and inverted testing mechanisms have the same structure, each including a base, a mounting component, a synchronous belt drive mechanism, and a load unit. The mounting component has mounting holes, and the load unit has a base plate for mounting a slider. The mounting component is equipped with an origin sensor, a position sensor, and a displacement sensor." In use, the fixture integrates testing mechanisms in different directions on the frame, resulting in a compact structure that saves space. It also enables horizontal, inverted, lateral, and vertical installation of the guide rail under test, allowing selection of the appropriate installation method based on the actual scenario to simulate testing of the guide rail in a real-world environment. Each testing mechanism can meet the testing requirements of different guide rail models.

[0004] However, traditional manual or simple mechanical clamping methods cannot guarantee uniform clamping of the guide rail, which can easily cause local stress concentration. At the same time, the lack of effective protective measures can easily scratch the surface of the guide rail, affecting the accuracy of the test results. Moreover, most existing equipment can only be used for guide rails of a single specification, which cannot meet the testing needs of guide rails of different models and sizes. When changing guide rails, the equipment needs to be adjusted frequently, which is cumbersome and time-consuming. When simulating load conditions, it is difficult to accurately control the pressure and movement trajectory applied to the guide rail, resulting in large fluctuations in the test results, which cannot truly reflect the fatigue performance of the guide rail in actual use.

[0005] Therefore, we provide a guide rail fatigue simulation testing device to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides a guide rail fatigue simulation testing device, which aims to solve the aforementioned problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A guide rail fatigue simulation testing device includes a base, a frame fixedly connected to the upper end of the base, a PLC control console electrically connected to the front side of the frame, a testing device mounted on the upper end of the PLC control console, a guide rail fixing assembly mounted on the inner side of the base, the guide rail fixing assembly including a fixing plate mounted on the inner side of the base, a displacement motor mounted on the surface of the fixing plate, and a drive simulation assembly provided at the upper end of the base, the drive simulation assembly including a connecting base provided at the upper end of the base, and a drive cylinder provided at the lower end of the connecting base.

[0009] As a further description of the above technical solution:

[0010] The base is made of high-strength cast iron, and the bottom of the base is equipped with shock-absorbing pads. The base is fixedly connected to the ground by anchor bolts. The detection device includes a displacement sensor and a pressure sensor, and the detection device is electrically connected to the PLC control console.

[0011] As a further description of the above technical solution:

[0012] A first clamping plate is provided on the rear side of the fixing plate, a second clamping plate is provided on the rear side of the first clamping plate, a first threaded rod is provided on the inner side of the second clamping plate, an auxiliary sliding rod is provided on one side of the first threaded rod, and a guide rail body is provided on the inner side of the first clamping plate.

[0013] As a further description of the above technical solution:

[0014] The displacement motor is keyed to the first threaded rod. Anti-slip rubber pads are provided on opposite sides of the first clamping plate and the second clamping plate, and grooves adapted to the guide rail body are provided on the anti-slip rubber pads. Both the first clamping plate and the second clamping plate are rectangular plate structures.

[0015] As a further description of the above technical solution:

[0016] The upper end of the connecting base is fixedly connected to a drive motor, and the output end of the drive cylinder is keyed to the second threaded rod. Both the drive motor and the second threaded rod are provided in two sets.

[0017] As a further description of the above technical solution:

[0018] The surface of the second threaded rod is provided with a connecting block, and the lower end of the connecting block is fixedly connected to a simulation platform, which is a rectangular plate structure.

[0019] As a further description of the above technical solution:

[0020] The simulation platform forms a sliding structure with the slider and the guide rail body, the driving cylinder forms a lifting structure with the connecting base, and the driving motor drives the connecting block and the simulation platform to perform reciprocating linear motion on the surface of the guide rail body through the second threaded rod.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model, by setting up a guide rail fixing component, uses a displacement motor to drive the first threaded rod, which in turn drives the first and second clamping plates to move towards each other, achieving uniform and controllable clamping of the guide rail. With the help of anti-slip rubber pads and matching grooves, it can not only prevent slippage but also reduce damage to the surface of the guide rail, ensuring the accuracy of detection. With the help of the adjustable stroke of the threaded rod and the auxiliary slide guide, it can be adapted to various specifications of guide rails, improving versatility. Automated drive replaces manual operation, reducing intervention time and labor intensity. Moreover, the flat key connection and high-strength clamping plate structure are durable, extending the service life of the device.

[0023] 2. This utility model, through the setting of the driving simulation component, drives the two sets of second threaded rods to rotate synchronously by the drive motor. With the help of the drive cylinder to adjust the pressure, it can accurately simulate the reciprocating motion of the guide rail under different loads, making the test results more valuable. The drive cylinder can realize the rapid separation or contact between the simulation platform and the guide rail, improving the disassembly and assembly efficiency. The synchronous drive of the two sets of threaded rods ensures stable movement. The slider cooperation reduces additional friction and improves data accuracy. It can be linked with the PLC control console to realize automated control, which is convenient for intelligent operation. Moreover, the modular design makes maintenance more convenient and extends the service life of the overall device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0025] Figure 2 This is a schematic diagram of one side of the overall structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall disassembled structure of this utility model;

[0027] Figure 4 This is a schematic diagram of the cooperative structure of the guide rail fixing component and the drive simulation component of this utility model;

[0028] Figure 5 This is a schematic diagram showing the disassembled structure of the guide rail fixing assembly of this utility model;

[0029] Figure 6 This is a schematic diagram of the drive simulation component structure of this utility model.

[0030] The following are the labeling elements in the diagram: 1. Base; 2. Frame; 3. PLC control console; 4. Detection device; 5. Guide rail fixing assembly; 501. Fixing plate; 502. Displacement motor; 503. First clamping plate; 504. Second clamping plate; 505. First threaded rod; 506. Auxiliary slide rod; 507. Guide rail body; 6. Drive simulation assembly; 601. Connecting base; 602. Drive cylinder; 603. Drive motor; 604. Second threaded rod; 605. Connecting block; 606. Simulation platform. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1-6 As shown, this utility model provides a technical solution: a guide rail fatigue simulation detection device, including a base 1, a frame 2 fixedly connected to the upper end of the base 1, a PLC control console 3 electrically connected to the front side of the frame 2, a detection device 4 installed on the upper end of the PLC control console 3, a guide rail fixing assembly 5 installed on the inner side of the base 1, the guide rail fixing assembly 5 including a fixing plate 501 installed on the inner side of the base 1, a displacement motor 502 installed on the surface of the fixing plate 501, a drive simulation assembly 6 provided at the upper end of the base 1, the drive simulation assembly 6 including a connecting base 601 provided at the upper end of the base 1, and a drive cylinder 602 provided at the lower end of the connecting base 601.

[0033] Furthermore, the base 1 is made of high-strength cast iron, and the bottom of the base 1 is equipped with shock-absorbing pads. The base 1 is fixedly connected to the ground by anchor bolts. The detection device 4 includes a displacement sensor and a pressure sensor. The detection device 4 is electrically connected to the PLC control console 3. During the installation phase, the base 1 is fixedly connected to the ground by anchor bolts, and the shock-absorbing pads at its bottom play a role in buffering the vibration transmitted from the ground. After entering the detection phase, the displacement sensor and pressure sensor in the detection device 4 continuously collect displacement and pressure data during the operation of the guide rail. These data are transmitted to the PLC control console 3 in real time through electrical lines, and the control console records and analyzes the data.

[0034] Furthermore, a first clamping plate 503 is provided on the rear side of the fixing plate 501, and a second clamping plate 504 is provided on the rear side of the first clamping plate 503. A first threaded rod 505 is provided on the inner side of the second clamping plate 504, and an auxiliary slide rod 506 is provided on one side of the first threaded rod 505. A guide rail body 507 is provided on the inner side of the first clamping plate 503. The guide rail body 507 is placed between the first clamping plate 503 and the second clamping plate 504. Subsequently, the displacement motor 502 is started, driving the first threaded rod 505 to rotate. Under the action of the first threaded rod 505, the first clamping plate 503 and the second clamping plate 504 move towards each other along the auxiliary slide rod 506 until the guide rail body 507 is clamped and fixed.

[0035] Furthermore, the displacement motor 502 is keyed to the first threaded rod 505. Anti-slip rubber pads are provided on opposite sides of the first clamping plate 503 and the second clamping plate 504, and grooves adapted to the guide rail body 507 are provided on the anti-slip rubber pads. Both the first clamping plate 503 and the second clamping plate 504 are rectangular plate structures. When the displacement motor 502 starts working, the output torque is transmitted to the first threaded rod 505 via the key, driving the first threaded rod 505 to rotate. The rotation of the first threaded rod 505 causes the first clamping plate 503 and the second clamping plate 504 to move closer together. At this time, the grooves on the anti-slip rubber pads on opposite sides of the first clamping plate 503 and the second clamping plate 504 that are adapted to the guide rail body 507 will fit tightly against the guide rail body 507, thereby achieving a stable clamping of the guide rail body 507.

[0036] Furthermore, a drive motor 603 is fixedly connected to the upper end of the connecting base 601, and the output end of the drive cylinder 602 is connected to the second threaded rod 604 via a key. Both the drive motor 603 and the second threaded rod 604 are provided in two sets. When the drive cylinder 602 is started, its output end drives the second threaded rod 604 to rise and fall via the key, thereby quickly disassembling and assembling the guide rail body 507 and the drive simulation component 6. Afterward, the drive motor 603 is started, driving the two sets of second threaded rods 604 to rotate synchronously, providing power support for the subsequent movement of the simulation platform 606.

[0037] Furthermore, a connecting block 605 is provided on the surface of the second threaded rod 604. A simulation platform 606 is fixedly connected to the lower end of the connecting block 605. The simulation platform 606 is a rectangular plate structure. The second threaded rod 604 starts to rotate under the drive of the drive motor 603. The connecting block 605 is pushed to move along the axial direction of the second threaded rod 604 through the thread action on the surface. During the movement, the connecting block 605 drives the simulation platform 606 fixedly connected to its lower end to move synchronously, thereby realizing the simulation of the reciprocating movement of the simulation platform 606 along the guide rail direction.

[0038] Furthermore, the simulation platform 606 forms a sliding structure with the guide rail body 507 via a slider, and the drive cylinder 602 forms a lifting structure with the connecting base 601. The drive motor 603 drives the connecting block 605 and the simulation platform 606 to reciprocate linearly on the surface of the guide rail body 507 via the second threaded rod 604. The drive cylinder 602 is activated, driving the connecting base 601 to rise and fall, so that the slider on the simulation platform 606 contacts the guide rail body 507 and applies a set pressure. Then, the drive motor 603 is activated, driving the connecting block 605 to reciprocate through the second threaded rod 604. The connecting block 605 drives the simulation platform 606 to reciprocate linearly along the guide rail body 507, continuously simulating load movement, thereby testing the fatigue performance of the guide rail.

[0039] Working principle: During installation, the base 1 is fixed to the ground with anchor bolts. The shock-absorbing pads at its bottom buffer the vibrations transmitted from the ground. The guide rail body 507 is placed between the first clamping plate 503 and the second clamping plate 504. The displacement motor 502 is started, and the output torque is transmitted to the first threaded rod 505 through a flat key, driving the first threaded rod 505 to rotate. Under the action of the first threaded rod 505, the first clamping plate 503 and the second clamping plate 504 move towards each other along the auxiliary slide rod 506 until the anti-slip rubber on their opposite sides is engaged. The groove on the pad that matches the guide rail body 507 fits tightly against the guide rail body 507, clamping and fixing the guide rail body 507. The drive cylinder 602 is activated, and its output end drives the second threaded rod 604 to rise and fall via a flat key, thereby quickly completing the assembly of the guide rail body 507 and the drive simulation component 6. During the test run, the drive cylinder 602 is activated again, driving the connecting base 601 to rise and fall, so that the slider on the simulation platform 606 contacts the guide rail body 507 and applies a set pressure. The drive motor 603 is activated, driving the two sets of second threaded rods... The rod 604 rotates synchronously, and the second threaded rod 604 pushes the connecting block 605 to reciprocate along the axial direction of the second threaded rod 604 through the action of the threads on its surface. The connecting block 605 drives the simulation platform 606, which is fixedly connected to its lower end, to move synchronously. The simulation platform 606 performs reciprocating linear motion on the guide rail body 507 through the slider. The displacement sensor and pressure sensor in the detection device 4 continuously collect displacement and pressure data during the operation of the guide rail. These data are transmitted to the PLC control console 3 in real time through electrical circuits, and the PLC control console 3 processes the data. After recording and analysis, and once the test is completed, the drive motor 603 stops working, the simulation platform 606 stops moving, the drive cylinder 602 starts, driving the second threaded rod 604 to rise and fall, separating the simulation platform 606 from the guide rail body 507 for easy disassembly. The displacement motor 502 starts, driving the first threaded rod 505 to rotate in the opposite direction, causing the first clamping plate 503 and the second clamping plate 504 to move in opposite directions, releasing the clamp on the guide rail body 507, removing the guide rail body 507, and completing the test. This completes the usage process of a guide rail fatigue simulation testing device.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A guide rail fatigue simulation testing device, comprising a base (1), characterized in that: A frame (2) is fixedly connected to the upper end of the base (1). A PLC control console (3) is electrically connected to the front side of the frame (2). A detection device (4) is installed on the upper end of the PLC control console (3). A guide rail fixing assembly (5) is installed on the inner side of the base (1). The guide rail fixing assembly (5) includes a fixing plate (501) installed on the inner side of the base (1). A displacement motor (502) is installed on the surface of the fixing plate (501). A drive simulation assembly (6) is provided at the upper end of the base (1). The drive simulation assembly (6) includes a connecting base (601) provided at the upper end of the base (1). A drive cylinder (602) is provided at the lower end of the connecting base (601).

2. The guide rail fatigue simulation testing device according to claim 1, characterized in that, The base (1) is made of high-strength cast iron. The bottom of the base (1) is provided with shock-absorbing pads. The base (1) is fixedly connected to the ground by anchor bolts. The detection device (4) includes a displacement sensor and a pressure sensor. The detection device (4) is electrically connected to the PLC control console (3).

3. The guide rail fatigue simulation testing device according to claim 1, characterized in that, A first clamping plate (503) is provided on the rear side of the fixed plate (501), a second clamping plate (504) is provided on the rear side of the first clamping plate (503), a first threaded rod (505) is provided on the inner side of the second clamping plate (504), an auxiliary slide rod (506) is provided on one side of the first threaded rod (505), and a guide rail body (507) is provided on the inner side of the first clamping plate (503).

4. The guide rail fatigue simulation testing device according to claim 3, characterized in that, The displacement motor (502) is keyed to the first threaded rod (505). Anti-slip rubber pads are provided on the opposite sides of the first clamping plate (503) and the second clamping plate (504), and grooves adapted to the guide rail body (507) are provided on the anti-slip rubber pads. The first clamping plate (503) and the second clamping plate (504) are both rectangular plate structures.

5. The guide rail fatigue simulation testing device according to claim 1, characterized in that, The upper end of the connecting base (601) is fixedly connected to a drive motor (603), and the output end of the drive cylinder (602) is keyed to the second threaded rod (604). The drive motor (603) and the second threaded rod (604) are both provided with two sets.

6. The guide rail fatigue simulation testing device according to claim 5, characterized in that, The surface of the second threaded rod (604) is provided with a connecting block (605), and the lower end of the connecting block (605) is fixedly connected to a simulation platform (606), which is a rectangular plate structure.

7. The guide rail fatigue simulation testing device according to claim 6, characterized in that, The simulation platform (606) forms a sliding structure with the guide rail body (507) through a slider, and the driving cylinder (602) forms a lifting structure with the connecting base (601). The driving motor (603) drives the connecting block (605) and the simulation platform (606) to reciprocate linearly on the surface of the guide rail body (507) through the second threaded rod (604).

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