A test device for testing the anti-friction performance of heavy-duty guide rails

Abstract

This utility model discloses a heavy-duty guide rail anti-friction performance testing device, belonging to the technical field of testing equipment. It includes a guide rail rod, with both sides of the guide rail rod assembled with a testing base fixed to the ground. A slider is slidably mounted on the guide rail rod. The device also includes: a cavity seat located at the upper part of the testing base at the end of the guide rail rod; a baffle located at the front end of the cavity seat; and a pneumatic plate located inside the cavity seat. When the slider, carrying a weight, slides horizontally along the guide rail rod track and collides with the baffle, the baffle, through a connecting rod, drives the pneumatic plate to squeeze the rear chamber of the cavity seat. Air sealing plates fixed to both sides of the baffle move synchronously with the rubber plates. The air sealing plates block the air ports on both sides of the cavity seat, and gas flows into the inner cavity of the rubber plates fixed to both sides of the cavity seat through the air guide pipes on the air sealing plates. Through the synergistic effect of the three-stage buffer, damage to the sensor element due to collision is effectively avoided, ensuring that the sensor can work stably and reliably throughout the entire testing process.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, specifically a testing device for the anti-friction performance of heavy-duty guide rails. Background Technology

[0002] In the fields of mechanical engineering and industrial production, guide rails are crucial components of mechanical equipment, and their performance directly affects the equipment's operational accuracy, stability, and lifespan. The anti-friction performance of guide rails is one of the key indicators for evaluating their quality and applicability. Therefore, developing a device capable of accurately testing the anti-friction performance of guide rails is of great significance for ensuring the normal operation of mechanical equipment and improving product quality. Guide rail anti-friction performance testing equipment can simulate various working conditions of guide rails in actual operation. Through precise measurement and analysis of relevant parameters, it can evaluate the anti-friction performance of guide rails, providing a scientific basis for guide rail design optimization, quality control, and fault diagnosis.

[0003] However, most testing equipment on the market lacks effective buffering protection measures. When the slider collides with the baffle at the end of its stroke, the powerful impact force generated instantly acts directly on the slider and the sensor element mounted on the slider. This unbuffered impact force can easily damage the precision structure inside the sensor, causing the sensor to malfunction or lose accuracy, making it unable to work stably and reliably, and thus seriously affecting the accuracy and integrity of the test data. Utility Model Content

[0004] The purpose of this invention is to provide a heavy-duty guide rail anti-friction performance testing device to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heavy-duty guide rail anti-friction performance testing device, comprising a guide rail rod, wherein both sides of the guide rail rod are assembled with a testing base fixed on the ground, and a slider is slidably mounted on the guide rail rod, and further comprising: A cavity seat is located on the upper part of the detection base at the end of the guide rail rod; A baffle is installed at the front end of the cavity seat; The pneumatic plate is located inside the cavity seat. When the slider carrying the weight slides horizontally along the guide rail and collides with the baffle, the baffle drives the pneumatic plate to squeeze the rear chamber of the cavity seat through the connecting rod. The sealing plates fixed on both sides of the baffle move synchronously with the second rubber plate. The sealing plates block the air ports on both sides of the cavity seat, and the gas flows into the inner cavity of the first rubber plate fixed on both sides of the cavity seat through the air guide tube on the sealing plate. The rubber surface of the first rubber plate expands and slides against the second rubber plate fixed on both sides of the baffle.

[0006] As a further description of the above technical solution: a spring is connected between the cavity seat and the baffle, the spring is sleeved outside the connecting rod, and the connecting rod passes through the front wall of the cavity seat and is slidably connected to it.

[0007] As a further description of the above technical solution: rubber sheets are provided on the opposite surfaces of rubber plate one and rubber plate two. There is a gap inside the rubber sheet on rubber plate one, and the air guide tube is connected to rubber plate one, so that the gas inside the cavity seat can be injected into the gap inside rubber plate one through the air guide tube, thereby expanding the rubber sheet.

[0008] As a further description of the above technical solution: the sealing plate is provided with damping air holes, and the air guide tube is installed at the position of the damping air holes.

[0009] As a further description of the above technical solution: a friction sensor is mounted on the slider.

[0010] As a further description of the above technical solution: a stepper motor is fixed on the detection base at one end of the guide rail rod, a threaded rod is connected to the output shaft end of the stepper motor, and the other end of the threaded rod is rotatably connected to the detection base at the other end of the guide rail rod. An internal threaded block is fixed at the lower end of the slider and is threadedly connected to the threaded rod.

[0011] The heavy-duty guide rail anti-friction performance testing device provided by this utility model has the following beneficial effects: 1. This heavy-duty guide rail anti-friction performance testing equipment protects the slider and the sensors mounted on it through a three-stage buffer structure. When the slider collides with the baffle at the end of its stroke, the first-stage buffer provided by the spring quickly absorbs most of the impact force, significantly reducing the instantaneous impact on the slider. Then, the second-stage buffer, generated by the combination of the air pressure plate and the sealing plate, uses the internal and external air pressure difference to achieve a continuous and relatively gentle buffering process, further weakening the remaining impact force. Finally, the third-stage buffer, provided by the expansion and sliding of the rubber plate, wears away the residual impact force. Through the synergistic effect of the three-stage buffer, damage to the sensor components due to collision is effectively avoided, ensuring that the sensor can work stably and reliably throughout the entire testing process.

[0012] 2. During the testing process, the sliding speed of the slider needs to be continuously adjusted in this heavy-duty guide rail anti-friction performance testing equipment. When the impact force is small, the primary buffer of the spring can play a major role in the initial buffer adjustment. If the impact force increases, the secondary buffer formed by the air pressure plate and the sealing plate will participate, relying on the air pressure difference to generate a greater buffering force. When the impact force is very large, the tertiary buffer of the rubber plate expansion and sliding will provide a further buffering effect. This adaptive buffering force adjustment method ensures that the equipment can operate stably under different impact force conditions and effectively protects the various components of the equipment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 A first-view structural schematic diagram provided for an embodiment of this utility model; Figure 2 This is a schematic diagram of the second-view structure provided for an embodiment of the present utility model; Figure 3 A schematic diagram of the buffer structure provided for an embodiment of this utility model; Figure 4 This is a cross-sectional schematic diagram of the buffer structure provided in an embodiment of the present utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Guide rail rod; 2. Detection base; 3. Slider; 4. Cavity seat; 5. Baffle; 6. Air pressure plate; 7. Connecting rod; 8. Sealing plate; 9. Rubber plate one; 10. Air duct; 11. Rubber plate two; 12. Spring; 13. Stepper motor; 14. Threaded rod; 15. Internal threaded block. Detailed Implementation

[0016] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0017] Please see Figures 1-4This utility model provides a technical solution for a heavy-duty guide rail anti-friction performance testing device: it includes a guide rail rod 1, which is assembled with a testing base 2 fixed on the ground on both sides. A slider 3 is slidably installed on the guide rail rod 1. It also includes: a cavity seat 4, located at the upper part of the testing base 2 at the end of the guide rail rod 1; a baffle 5, located at the front end of the cavity seat 4, used to block the sliding of the slider 3 and to generate displacement when impacted by the slider 3; and a pneumatic plate 6, located inside the cavity seat 4. When the slider 3, carrying a heavy object, slides horizontally along the guide rail rod 1 and collides with the baffle 5, the baffle 5 drives the pneumatic plate 6 to squeeze through a connecting rod 7. In the rear chamber of the cavity seat 4, the sealing plates 8 and rubber plates 11 fixed on both sides of the baffle 5 move synchronously. The sealing plates 8 block the air ports on both sides of the cavity seat 4. The gas flows into the inner cavity of the rubber plates 9 fixed on both sides of the cavity seat 4 through the air guide tubes 10 on the sealing plates 8. The rubber surface of the rubber plates 9 expands and slides against the rubber plates 11 fixed on both sides of the baffle 5. After the slider 3 collides with the baffle 5, the force is transmitted through the connecting rod 7 to make the air pressure plate 6 squeeze the rear chamber, which promotes the flow of gas. The sealing plates 8 ensure that the gas flows to the rubber plates 9. After the rubber plates 9 expand, they slide against the rubber plates 11 to achieve further buffering.

[0018] In another embodiment of the present invention, preferably, a spring 12 is connected between the cavity seat 4 and the baffle 5. The spring 12 is sleeved on the outside of the connecting rod 7, and the connecting rod 7 passes through the front wall of the cavity seat 4 and is slidably connected to it. The spring 12 plays a buffering and restoring role. When the slider 3 hits the baffle 5, it is compressed to absorb part of the impact force, and then it can restore the baffle 5 and other components to their initial positions. The connecting rod 7 is used to connect the baffle 5 and the air pressure plate 6 and transmit the motion.

[0019] In another embodiment of this utility model, preferably, rubber sheets are provided on the opposing surfaces of rubber plate 19 and rubber plate 29. There is a gap inside the rubber sheet on rubber plate 19, and the air guide pipe 10 is connected to rubber plate 19, so that the gas inside the cavity seat 4 can be injected into the gap inside rubber plate 19 through the air guide pipe 10, thereby expanding the rubber sheet. The setting of the rubber sheet increases the factors related to friction detection. The gas injection into the gap inside rubber plate 19 causes the rubber sheet to expand, thereby changing the friction when rubber plate 19 and rubber plate 211 are in contact.

[0020] In another embodiment of the present invention, preferably, the sealing sheet 8 is provided with damping air holes, and the air guide pipe 10 is installed at the position of the damping air holes; the damping air holes limit the gas discharge speed, making the process of gas flowing into the rubber plate 9 more stable, and at the same time providing secondary buffer for impact.

[0021] In another embodiment of the present invention, preferably, a friction sensor is mounted on the slider 3; the slider 3 slides on the guide rail 1 to simulate actual working conditions, and the friction sensor collects friction data between the slider 3 and the guide rail 1 in real time, providing a basis for detecting anti-friction performance.

[0022] In another embodiment of this utility model, preferably, a stepper motor 13 is fixed on the detection base 2 at one end of the guide rail rod 1, and a threaded rod 14 is connected to the output shaft end of the stepper motor 13. The other end of the threaded rod 14 is rotatably connected to the detection base 2 at the other end of the guide rail rod 1. An internal threaded block 15 is fixed at the lower end of the slider 3 and is threadedly connected to the threaded rod 14. The stepper motor 13 provides power to rotate the threaded rod 14, and the rotation of the threaded rod 14 drives the internal threaded block 15 threadedly connected to it to move, thereby causing the slider 3 to slide on the guide rail rod 1.

[0023] During operation, the relevant testing personnel start the stepper motor 13. The output shaft of the stepper motor 13 rotates, which drives the threaded rod 14 to rotate. Since the internal threaded block 15 is threadedly connected to the threaded rod 14, the slider 3 will carry the weight and slide horizontally along the track of the guide rod 1 under the drive of the threaded rod 14. When slider 3 slides to collide with baffle 5, the impact force of slider 3 pushes baffle 5 to move backward. At this time, spring 12 is compressed to provide a first-level buffer. Baffle 5 drives pneumatic plate 6 to move to the rear chamber of cavity seat 4 through connecting rod 7. During the movement of the baffle 5, the sealing plates 8 fixed on both sides of the baffle 5 move synchronously with the rubber plate 9. The sealing plates 8 block the air ports on both sides of the cavity seat 4. The gas inside the cavity seat 4 cannot be discharged from the air ports on both sides, but flows into the inner cavity of the rubber plate 9 through the air guide tube 10 on the sealing plates 8. Since the damping air hole has a small exhaust volume, it provides a secondary buffer through the air pressure plate 6 under the action of the internal and external air pressure difference. After the gas enters the internal gap of the rubber plate 9, the rubber sheet of the rubber plate 9 expands. The expanded rubber surface of the rubber plate 9 slides against the rubber plate 11 fixed on both sides of the baffle 5, providing three-level buffering. Throughout the sliding of slider 3 and the subsequent triggering of related components, the friction sensor mounted on slider 3 collects real-time data on the anti-friction performance of the heavy-duty guide rail, providing a basis for evaluating the anti-friction performance of the heavy-duty guide rail. After completing one test, the stepper motor 13 reverses, causing the slider 3 to slide in the opposite direction along the guide rail 1, away from the baffle 5. At this time, under the elastic force of the spring 12, the baffle 5, connecting rod 7, air pressure plate 6, sealing plate 8, rubber plate 9 and other components return to their initial positions. The gas in the rubber plate 9 is slowly discharged through the air guide pipe 10 and the damping air hole on the sealing plate 8. The rubber sheet of the rubber plate 9 returns to its original state, and the equipment is ready for the next test.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heavy-duty guide rail anti-friction performance testing device, comprising a guide rail rod (1), wherein the two sides of the guide rail rod (1) are assembled with a testing base (2) fixed on the ground, and a slider (3) is slidably mounted on the guide rail rod (1), characterized in that, Also includes: A cavity seat (4) is located on the upper part of the detection base (2) at the end of the guide rail rod (1); A baffle (5) is provided at the front end of the cavity seat (4); The air pressure plate (6) is set inside the cavity seat (4). When the slider (3) carries the weight and slides horizontally along the guide rail (1) and collides with the baffle (5), the baffle (5) drives the air pressure plate (6) to squeeze the rear chamber of the cavity seat (4) through the connecting rod (7). The sealing plate (8) fixed on both sides of the baffle (5) moves synchronously with the second rubber plate (11). The sealing plate (8) blocks the air ports on both sides of the cavity seat (4). The gas flows into the inner cavity of the first rubber plate (9) fixed on both sides of the cavity seat (4) through the air guide pipe (10) on the sealing plate (8). The rubber surface of the first rubber plate (9) expands and slides against the second rubber plate (11) fixed on both sides of the baffle (5).

2. The heavy-duty guide rail anti-friction performance testing equipment according to claim 1, characterized in that, A spring (12) is connected between the cavity seat (4) and the baffle (5). The spring (12) is sleeved on the outside of the connecting rod (7). The connecting rod (7) passes through the front wall of the cavity seat (4) and is slidably connected to it.

3. The heavy-duty guide rail anti-friction performance testing equipment according to claim 2, characterized in that, The rubber sheet is provided on the opposite side of the first rubber plate (9) and the second rubber plate (11). There is a gap on the inner side of the rubber sheet on the first rubber plate (9), and the air pipe (10) is connected to the first rubber plate (9), so that the gas inside the cavity seat (4) can be injected into the gap inside the first rubber plate (9) through the air pipe (10), thereby expanding the rubber sheet.

4. The heavy-duty guide rail anti-friction performance testing equipment according to claim 3, characterized in that, The sealing plate (8) is provided with damping air holes, and the air guide pipe (10) is installed at the position of the damping air holes.

5. The heavy-duty guide rail anti-friction performance testing equipment according to claim 1, characterized in that, A friction sensor is mounted on the slider (3).

6. The heavy-duty guide rail anti-friction performance testing equipment according to claim 5, characterized in that, A stepper motor (13) is fixed on the detection base (2) at one end of the guide rail rod (1). The output shaft end of the stepper motor (13) is connected to a threaded rod (14), and the other end of the threaded rod (14) is rotatably connected to the detection base (2) at the other end of the guide rail rod (1). The lower end of the slider (3) is fixed with an internal thread block (15) that is threadedly connected to the threaded rod (14).

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