Air spring bursting test equipment

Abstract

The utility model relates to the technical field of air spring detection, and discloses air spring bursting test equipment, which comprises an experiment box body and a console, an air spring main body is arranged in the experiment box body, a high-pressure pump device is arranged in the experiment box body, and the high-pressure pump device comprises a pump body arranged on the rear side of the bottom surface of the experiment box body. The output end of the pump body is connected with a pressure detection head located in the experiment box body through a pipeline, and the other end of the pressure detection head is communicated with the side edge of the air spring body through a pipeline. According to the utility model, the protective baffle plate with a U-shaped elastic plate structure is arranged, so that the impact of blasting chips generated during the blasting of the air spring main body on the pressure detection head and the inner side wall surface of the experiment box body can be effectively prevented; the risk that the pressure detection head is damaged due to chipping collision is greatly reduced, and the safety of key components of the detection equipment is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air spring detection, and more specifically to air spring explosion test equipment. Background Art

[0002] In the field of industrial product testing and inspection technology, air spring burst test equipment plays a key role in ensuring the quality and safety of air spring products. Air springs are widely used in many fields such as automobiles, rail transportation, industrial machinery, etc., and the reliability of their performance needs to be verified through rigorous burst tests.

[0003] However, the existing air spring burst test equipment has serious defects in protection. There is a lack of specially designed effective protection mechanism in the connection area between the pressure detection head and the air spring. When the air spring explodes, the strong impact force will cause the explosion debris to splash around unimpeded, and the pressure detection head is directly exposed to the impact range of the debris. Due to the lack of a protective structure, the pressure detection head is extremely susceptible to damage, especially the high-precision sensor inside it. Once the sensor is damaged, the equipment cannot accurately measure the pressure data, which not only causes the failure of this test, but also requires a lot of time and cost to repair or replace the sensor. Frequent sensor damage will significantly increase equipment downtime, seriously affect the progress and efficiency of the test, and increase the company's operating costs. At the same time, inaccurate test data will also mislead the evaluation of air spring performance, which is not conducive to the improvement and improvement of product quality, and it is difficult to ensure the safety and reliability of air springs in actual applications.

[0004] Therefore, an air spring bursting test equipment is proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide air spring bursting test equipment to solve the above-mentioned prior art problem of protecting the detection head.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] The air spring burst test equipment comprises an experimental box and a control console, the control console is connected to the relevant equipment inside the experimental box through a connecting wire, the air spring body is arranged inside the experimental box, the high-pressure pump device is arranged inside the experimental box, the high-pressure pump device comprises a pump body installed on the rear side of the bottom surface of the experimental box, the output end of the pump body is connected to the pressure detection head located inside the experimental box through a pipeline, and the other end of the pressure detection head is connected to the side of the air spring body through a pipeline;

[0008] An elastic protective baffle is arranged at the connection between the pressure detection head and the air spring body. The protective baffle adopts a U-shaped structure, and the pipelines of the pressure detection head and the air spring body are clamped in the U-shaped groove of the protective baffle to separate the pressure detection head and the air spring body front and back. A liftable mobile frame is arranged inside the experimental box, and a buffer assembly for forward and backward movement is arranged between the mobile frame and the protective baffle.

[0009] Preferably, the movable frame includes a frame with a concave structure, and two groups of steel plates located on both sides of the air spring body are arranged in parallel inside the frame. The rear ends of the steel plates are provided with slide grooves, and the buffer assembly includes a slider and a stainless steel spring located inside the slide groove. One end of the stainless steel spring is fixed inside the groove of the slide groove, and the other end of the stainless steel spring is connected to the slider. The left and right sliders are connected at one side adjacent to the protective baffle through a connecting rod.

[0010] Preferably, lifting components are provided on both sides of the mobile frame, and the lifting components can adjust the up and down movement of the mobile frame and the protective baffle on the mobile frame. The lifting components include connecting blocks on both sides of the outside of the frame frame, and a hydraulic telescopic rod for lifting adjustment is connected between the bottom of the two connecting blocks and the inner bottom surface of the experimental box.

[0011] Preferably, the air spring body is placed on a base table inside the experimental box, a downward-pressing baffle mechanism is provided inside the experimental box, and a cylinder for driving the downward-pressing baffle mechanism is provided on the outer side of the top of the experimental box.

[0012] Preferably, the downward pressure baffle mechanism includes a first limiting rod located at the four corners inside the experimental box and an extrusion cover plate that slides up and down on the four first limiting rods. The extrusion cover plate is driven by a cylinder on the outside of the top of the experimental box, and the bottom output shaft of the cylinder drives the extrusion cover plate downward to move vertically and stably up and down under the constraints of the four first limiting rods.

[0013] Preferably, the front side of the experimental box is movably connected to the experimental doors and windows through a hinge, the front end of the experimental box is provided with two L-shaped limit blocks corresponding to the free ends of the experimental doors and windows, the experimental box is provided with a rotating handle corresponding to the level of the limit blocks, and the experimental doors and windows are installed with an explosion-proof window body.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The protection performance is significantly improved. The utility model sets a protective baffle with a U-shaped elastic plate structure at the connection between the pressure detection head and the air spring body, which can effectively block the impact of the explosion debris generated when the air spring body explodes on the pressure detection head and the inner wall of the experimental box, greatly reducing the risk of damage to the pressure detection head due to the impact of debris, and ensuring the safety of key components of the detection equipment. At the same time, the lifting and lowering movable frame and buffer assembly set inside the experimental box further enhance the protection effect. The steel plate of the movable frame can buffer the explosion impact force on both sides of the air spring body. The stainless steel spring of the buffer assembly cooperates with the slider to pull the protective baffle at the moment of explosion to prevent it from excessively displacing backwards and hitting the inside of the experimental box, thereby effectively restricting the movement range of the protective baffle and the pressure detection head, preventing the high-precision sensor inside the pressure detection head from being damaged due to severe collision, significantly extending the service life of the protective baffle and the pressure detection head, reducing the frequency of equipment shutdown and maintenance due to component damage, and improving the overall test efficiency and equipment reliability.

[0016] 2. The test function is more comprehensive: it not only has the function of the traditional high-pressure pump device to perform internal pressure loading test on the air spring body, but also has a downward pressure baffle mechanism. This mechanism drives the extrusion cover plate through the cylinder to perform external pressure shock or pressure test on the air spring body under the constraint of the first limit rod. It can simulate the various complex stress conditions that the air spring may withstand in actual use, and conduct a comprehensive inspection of the air spring body from two dimensions: internal pressure and external pressure. The sensor inside the base can monitor the relevant data during the downward pressure test in real time and transmit it to the console. Combined with the data feedback from the pressure detection head during the high-pressure pump device test, the test results are more accurate and comprehensive. It can more accurately evaluate the performance and quality of the air spring body, and provide richer and more reliable data support for the research and development, production and quality control of air springs.

[0017] 3. Both operational convenience and safety are taken into account: The front side of the experimental box adopts hinges to connect the experimental doors and windows, and the doors and windows are limited and fixed by L-shaped limit blocks and rotating handles. The operation is simple and convenient, and the experimental box can be closed and sealed quickly and reliably. In terms of ensuring experimental safety, on the one hand, it prevents the experimental doors and windows from accidentally opening or swaying due to the impact of internal experimental explosions, and avoids the leakage of debris and high-pressure media to cause damage to the surrounding environment and personnel; on the other hand, the explosion-proof window body installed on the experimental doors and windows allows operators to observe the status of experimental equipment and experimental operation inside the experimental box during the test, which not only ensures the safety of operators, but also facilitates real-time understanding of the progress of the test, timely detection of abnormal situations and taking corresponding measures. The lifting components on both sides of the mobile frame can easily adjust the height position of the mobile frame and the protective baffle through hydraulic telescopic rods, so that it can adapt to the testing requirements of air spring bodies of different specifications, improve the versatility and operational convenience of the equipment, and reduce the time and labor costs consumed by inconvenient equipment adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0019] Figure 2 This is a half-section diagram of the interior of the experimental box;

[0020] Figure 3 It is a structural schematic diagram of the air spring body, the moving frame and the lifting assembly;

[0021] Figure 4 It is a structural schematic diagram of the mobile frame and the buffer assembly;

[0022] Figure 5 It is a structural diagram of the experimental box and the control console.

[0023] Legend: 1. Experimental box; 101. Experimental doors and windows; 102. Limit block; 103. Handle; 104. Explosion-proof window body; 2. Control console; 3. Air spring body; 4. Base; 5. Cylinder; 6. Steel plate; 601. Hydraulic telescopic rod; 602. Connecting block; 603. Frame; 606. Slide; 7. Pump body; 701. Pressure detection head; 702. Protective baffle; 8. Connecting rod; 801. Sliding block; 802. Stainless steel spring; 9. First limit rod; 901. Extrusion cover. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0025] Figure 1 to Figure 5 It is the best embodiment of the utility model, and the following Figure 1 to Figure 5 The utility model is further described.

[0026] The air spring burst test equipment includes an experimental box 1 and a control console 2. The control console 2 is connected to the relevant equipment inside the experimental box 1 through a connecting wire. The specific connection is a prior art, so it is not described in detail in this technical solution. Through the display screen on the control console 2 and the corresponding control switch, the internal equipment switch of the experimental box 1 is controlled in real time and the experimental status is monitored.

[0027] The front side of the experimental box 1 is movably connected with an experimental door and window 101 through a hinge, and the front end of the experimental box 1 is provided with two L-shaped limit blocks 102 corresponding to the free ends of the experimental door and window 101. A rotating handle 103 corresponding to the limit block 102 is provided on the experimental box 1. At least two sets of handles 103 are vertically provided on the experimental door and window 101. When the experimental door and window 101 is closed with the experimental box 1, the handle 103 on the experimental door and window 101 corresponds horizontally to the limit block 102 at the front end of the experimental box 1. The handle 103 is rotated to the corresponding limit block 102, and the experimental door and window 101 is fixed at the front end of the experimental box 1 to avoid the impact of the internal experimental explosion of the experimental box 1, which causes the experimental door and window 101 to open or sway at the front end of the experimental box 1. In addition, an explosion-proof window body 104 is installed on the experimental door and window 101, so that the state of the experimental equipment and the experimental operation inside the experimental box 1 can be observed.

[0028] In this embodiment, an air spring body 3 to be tested is arranged inside the experimental box 1, and the bottom of the air spring body 3 is placed on a base table 4 installed on the bottom surface of the interior of the experimental box 1. A downward pressure baffle mechanism for pressure testing the air spring body 3 is arranged inside the experimental box 1, and a cylinder 5 for driving the downward pressure baffle mechanism is arranged on the outer side of the bottom of the experimental box 1.

[0029] In this embodiment, the downward pressure baffle mechanism includes first limit rods 9 located at four corners inside the test box 1 and an extrusion cover plate 901 that slides up and down on the rods of the four first limit rods 9, and the extrusion cover plate 901 is driven by the cylinder 5 on the outer side of the top of the test box 1. The bottom output shaft of the cylinder 5 drives the extrusion cover plate 901 downward to move vertically and stably up and down under the constraints of the four first limit rods 9, and the extrusion cover plate 901 that moves up and down can perform an extrusion test on the air spring body 3 directly below.

[0030] Specifically, a sensor is provided inside the base platform 4 and is connected to the inside of the console 2 through a connecting line. The sensor and the connecting line are both well-known prior art. When the hydraulic telescopic rod 601 performs a squeeze test on the air spring body 3 directly below, the sensor inside the base platform 4 can be used to monitor in real time on the display screen of the console 2.

[0031] In this embodiment, the inside of the experimental box 1 can not only perform extrusion detection on the air spring body 3 on the base platform 4. A high-pressure pump device is also arranged inside the experimental box 1, and the high-pressure pump device includes a pump body 7 installed on the rear side of the bottom surface inside the box 1. The output end of the pump body 7 is connected to a pressure detection head 701 located inside the experimental box 1 through a pipeline. The other end of the pressure detection head 701 is connected to the side of the air spring body 3 through a pipeline. The high-pressure pump device is also connected to the console 2 through a wire, and cooperates with the downward pressure baffle mechanism. When the high-pressure pump device is working, the pump body 7 presses the medium into the pressure detection head 701 through the pipeline, and the medium then flows into the inside of the air spring body 3, so that the pressure inside the air spring body 3 gradually increases. At the same time, the pressure sensor in the pressure detection head 701 monitors the pressure changes in the channel in real time. Because it is connected to the inside of the air spring body 3, it can accurately sense the increase and decrease of the pressure in the air spring body 3. The pressure sensor converts the pressure signal into an electrical signal and transmits it to the console 2, and the console 2 controls the operation of the high-pressure pump device based on these signal data. For example, when the pressure reaches a certain set test pressure value, the console 2 can control the high-pressure pump device to stop working to perform a pressure-maintaining test; or when performing a bursting pressure test, the pressure is continuously monitored until the air spring body 3 bursts and the pressure data at the moment of the burst is recorded. In addition, in the present technical solution, the pressure detection head 701 uses a detection head with a high-precision pressure sensing element (such as a strain gauge pressure sensor or a piezoresistive pressure sensor, etc.), which can provide accurate and stable pressure measurement data. And all of them are existing known technologies.

[0032] In the present technical solution, a protective baffle 702 is also provided between the connection of the pressure detection head 701 and the air spring body 3. The protective baffle 702 is a U-shaped elastic plate, and the pipes of the pressure detection head 701 and the air spring body 3 are clamped inside the U-shaped groove of the protective baffle 702, separating the protective baffle 702 and the air spring body 3 from the front and back. If the internal pressure of the air spring body 3 is too high, the blasting debris produced by the high-pressure explosion may cause damage to the rear side of the air spring body 3, and the impact force causes the pressure detection head 701 to collide with the inner wall of the experimental box 1. For this reason, the protective baffle 702 is used in this solution to achieve a protective effect.

[0033] In order to further improve the protective effect of the pressure detection head 701, a liftable movable frame is arranged inside the experimental box 1, and a buffer component for forward and backward movement is arranged between the pressure detection head 701 and the movable frame. When the air spring body 3 explodes, it can have a buffering and limiting effect on the pressure detection head 701 and the protective baffle 702, thereby preventing the pressure detection head 701 and the protective baffle 702 from colliding with the inner side of the experimental box 1 due to the explosion impact of the air spring body 3.

[0034] Specifically, the mobile frame includes a concave frame 603, and two sets of steel plates 6 located on both sides of the air spring body 3 are arranged in parallel inside the frame 603. The rear ends of the steel plates 6 are provided with slide grooves 606. The buffer assembly includes a slider 801 and a stainless steel spring 802 located inside the slide groove 606, one end of the stainless steel spring 802 is fixed inside the groove of the slide groove 606, and the other end of the stainless steel spring 802 is connected to the slider 801. The side adjacent to the protective baffle 702 between the left and right sliders 801 is connected by a connecting rod 8. When the protective baffle 702 and the pressure detection head 701 are subjected to the impact force generated by the explosion of the air spring body 3, the steel plates 6 on both sides of the air spring body 3 have a certain buffering effect on the two sides of the exploded air spring body 3. At the same time, the two sets of buffer assemblies on the rear side of the steel plate 6 can pull the protective baffle 702 to prevent it from being subjected to the impact force generated by the explosion of the air spring body 3 and hitting the inner side of the experimental box 1 backward. It has the effect of buffering and restraining the protective baffle 702 and the pressure detection head 701, avoiding direct collision with the inner wall of the experimental box 1, which may cause a violent collision of the pressure detection head 701 and damage the high-precision sensor inside the pressure detection head 701. When multiple experiments are carried out inside the experimental box 1, the service life of the pressure detection head 701 is improved through the cooperation of the moving frame, the buffer assembly and the protective baffle 702.

[0035] The mobile frame of the present technical solution is provided with lifting components on both sides, and the lifting components can adjust the height position of the mobile frame and the protective baffle 702 on the mobile frame, so as to facilitate the docking of the protective baffle 702 with the top side connecting pipe of the air spring body 3. Specifically, the lifting components include connecting blocks 602 on both sides of the frame frame 603, and a hydraulic telescopic rod 601 for lifting adjustment is connected between the bottom of the two connecting blocks 602 and the inner bottom surface of the experimental box 1.

[0036] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. An air spring bursting test device, comprising an experimental box (1) and a control console (2), wherein the control console (2) is connected to relevant equipment inside the experimental box (1) via a connecting wire, and an air spring body (3) is arranged inside the experimental box (1), characterized in that: A high-pressure pump device is arranged inside the experimental box (1), and the high-pressure pump device comprises a pump body (7) installed at the rear side of the bottom surface of the experimental box (1), the output end of the pump body (7) is connected to a pressure detection head (701) located inside the experimental box (1) through a pipeline, and the other end of the pressure detection head (701) is connected to the side of the air spring body (3) through a pipeline; An elastic protective baffle (702) is provided at the connection between the pressure detection head (701) and the air spring body (3); the protective baffle (702) adopts a U-shaped structure, and the pipelines of the pressure detection head (701) and the air spring body (3) are clamped in the U-shaped groove of the protective baffle (702), so that the pressure detection head (701) and the air spring body (3) are separated front and back; a movable frame that can be raised and lowered is provided inside the experimental box (1); and a buffer component for front and back movement is provided between the movable frame and the protective baffle (702).

2. The air spring burst test equipment according to claim 1, characterized in that: The mobile frame comprises a frame frame (603) with a concave structure, wherein two sets of steel plates (6) are arranged in parallel inside the frame frame (603) and are located on both sides of the air spring body (3), and a slide groove (606) is provided at the rear end of each steel plate (6). The buffer assembly comprises a slider (801) and a stainless steel spring (802) located inside the slide groove (606), one end of the stainless steel spring (802) is fixed inside the groove of the slide groove (606), and the other end of the stainless steel spring (802) is connected to the slider (801), and the side between the left and right sliders (801) adjacent to the protective baffle (702) is connected via a connecting rod (8).

3. The air spring burst test equipment according to claim 2, characterized in that: Lifting components are arranged on both sides of the mobile frame, and the lifting components can adjust the up and down movement of the mobile frame and the protective baffle (702) on the mobile frame. The lifting components include connecting blocks (602) on both sides of the outside of the frame frame (603), and a hydraulic telescopic rod (601) for lifting adjustment is connected between the bottom of the two connecting blocks (602) and the inner bottom surface of the experimental box (1).

4. The air spring burst test equipment according to claim 1, characterized in that: The air spring body (3) is placed on a base platform (4) inside the experimental box (1); a downward pressure baffle mechanism is provided inside the experimental box (1); and a cylinder (5) for driving the downward pressure baffle mechanism is provided on the outer side of the top of the experimental box (1).

5. The air spring bursting test equipment according to claim 4, characterized in that: The downward pressure baffle mechanism comprises first limit rods (9) located at four corners inside the experimental box (1) and an extrusion cover plate (901) that slides up and down on the rods of the four first limit rods (9); the extrusion cover plate (901) is driven by a cylinder (5) on the outer side of the top of the experimental box (1); the bottom output shaft of the cylinder (5) drives the extrusion cover plate (901) downward to perform vertical and stable upward and downward movement under the constraints of the four first limit rods (9).

6. The air spring burst test equipment according to claim 1, characterized in that: The front side of the experimental box (1) is movably connected to an experimental door and window (101) via a hinge, the front end of the experimental box (1) is provided with two L-shaped limit blocks (102) corresponding to the free ends of the experimental door and window (101), the experimental box (1) is provided with a rotating handle (103) corresponding to the level of the limit blocks (102), and the experimental door and window (101) is installed with an explosion-proof window body (104).

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