A general-purpose, single-unit, rapid-loading random vibration device and vibration testing method

Abstract

A general-purpose, single-unit, rapid-mount random vibration device and vibration testing method belong to the field of process equipment technology. The invention includes: a longitudinal sliding guide rail with both ends located in two tracks on the front of a vertical plate, the ends of which slide synchronously along the tracks; the longitudinal sliding guide rail is provided with a track for a rotating guide rail to slide; the two ends of the rotating guide rail are respectively located in tracks on two different longitudinal sliding guide rails, and as the longitudinal sliding guide rail moves, the two ends of the rotating guide rail slide synchronously in the tracks on the longitudinal sliding guide rail, while the rotating guide rail rotates around its axis; the rotating guide rail is provided with a slider assembly; the lifting and rotating assembly, through the slider assembly, achieves a change in its height relative to the front of the vertical plate while the rotating guide rail rotates around its axis. This invention improves testing efficiency and stability and reduces testing costs while meeting the vibration testing requirements of single-unit devices of different sizes.

Description

Technical Field

[0001] This invention relates to a general-purpose, single-machine, rapid-installation random vibration device and vibration testing method, belonging to the field of process equipment technology. Background Technology

[0002] Random vibration testing of products is a time-consuming and labor-intensive task in the field of process inspection. To ensure the reliability of individual products and verify their performance, each product needs to be fixed to a vibration table using a vibration device to complete the corresponding test items. Since the dimensions and mounting interfaces of each product vary, a unique random vibration device needs to be designed for each product to fit its interface, which increases the product development cycle and cost. Furthermore, with the increasing variety of individual products, the repetitive design and manufacturing of vibration devices severely impacts product delivery cycles and efficiency. A universal, quick-mount random vibration device can effectively accomplish the above tasks. It is suitable for individual products of different sizes and their corresponding mounting interfaces, and the installation and disassembly of the individual product are simple. In addition to conventional XYZ triaxial six-axis tests, the universal vibration device can also perform vibration tests at specific angles, making it widely applicable and easy to operate.

[0003] Current aerospace single-unit products primarily use four-point support mounting, with varying support mounting threads depending on the product's weight and size. Furthermore, different units have different dimensions and mounting interfaces, requiring separately designed vibration devices for environmental testing to conduct corresponding vibration experiments. Depending on product testing requirements, tests in different directions also necessitate separate vibration devices for those directions. The entire product environmental testing process is extremely cumbersome, time-consuming, and costly, making it difficult to meet the requirements of simple, efficient, and easy-to-operate testing methods. Summary of the Invention

[0004] The technical problem solved by this invention is to overcome the shortcomings of the prior art and provide a general single-unit quick-mount random vibration device and vibration test method, which improves test efficiency and stability and reduces test costs while meeting the vibration test requirements of single units of different sizes.

[0005] The technical solution of the present invention is: a general single-machine quick-loading random vibration device, including a base plate and a vertical plate; the side of the vertical plate is fixedly installed on the base plate; the front of the vertical plate is provided with a slider assembly, a lifting and rotating assembly, a longitudinal sliding guide rail, and a rotating guide rail;

[0006] The longitudinal sliding guide rail is located at both ends in two tracks set on the front of the vertical plate, and its two ends slide synchronously along the tracks; the longitudinal sliding guide rail is provided with a track for rotating the guide rail to slide.

[0007] The two ends of the rotating guide rail are respectively located in the tracks on two different longitudinal sliding guide rails. As the longitudinal sliding guide rails move, the two ends of the rotating guide rail slide synchronously in the tracks on the longitudinal sliding guide rails, while the rotating guide rail rotates around its axis. The rotating guide rail is provided with a slider assembly.

[0008] The lifting and rotating assembly, through the slider assembly, achieves a change in its height relative to the front of the vertical plate while the rotating guide rail rotates around its axis.

[0009] Furthermore, the slider assembly includes a slider block and a transition block;

[0010] The adapter block is connected to the slot of the rotating guide rail by a pin, so that the adapter block moves back and forth in a straight line along the slot on the surface of the rotating guide rail.

[0011] The sliding block has a groove on its side, which cooperates with the protrusion on the side of the adapter block, allowing the sliding block to slide on the surface of the adapter block.

[0012] Furthermore, the sliding between the adapter block and the rotating guide rail, and the sliding between the sliding block and the adapter block, work together to increase the range of motion of the sliding block.

[0013] Furthermore, the sliding block surface has three different sizes of threaded holes to accommodate single units of different sizes.

[0014] Furthermore, the lifting and rotating assembly includes a rotating shaft, a lifting bushing, and a connecting rod;

[0015] The rotating shaft is fixedly connected to the vertical plate;

[0016] The lifting bushing is installed on the rotating shaft through the through hole in the middle, and can move linearly along the rotating shaft and rotate around the rotating shaft; connecting rods are installed at both ends of the lifting bushing.

[0017] The two ends of the connecting rod are connected to the slider assembly and the lifting bushing respectively by rotating pins, and the connecting rod can rotate around the pins at both ends.

[0018] Furthermore, the longitudinal sliding guide rail is installed on the vertical plate by detachable pins and moves back and forth in a straight line along the groove of the vertical plate. At the same time, the two ends of the rotating guide rail are connected to the groove on the longitudinal sliding guide rail by pins.

[0019] Furthermore, there are two rotating guide rails and two longitudinal sliding guide rails, with pins at one end of the two different rotating guide rails installed in the groove of the longitudinal sliding guide rail on the same side.

[0020] Furthermore, the front of the vertical plate is engraved with rotation degree markings. After the longitudinal sliding guide rail is removed by detachable pins, the two rotating guide rails rotate at different angles on the surface of the vertical plate. By aligning the rotating guide rails with different degree markings, the test product fixedly connected to them is rotated to the corresponding angle to achieve a vibration test at a specific angle.

[0021] Furthermore, reinforcing ribs are symmetrically arranged on both sides of the vertical plate.

[0022] A vibration testing method utilizing the aforementioned universal single-machine rapid mounting random vibration device includes:

[0023] Pulling the longitudinal sliding guide rail causes the guide rail, slider assembly, and lifting rotation assembly to move accordingly.

[0024] After the rotating guide rail is rotated to the required angle, the product under test is connected to the sliding component. At the same time, the rotating guide rail is pressed against the surface of the vertical plate by the sliding component and cannot rotate. Under the action of the pins at both ends of the rotating guide rail, the longitudinal sliding guide rail connected to it is also locked, and the overall structure is in a locked state, realizing the vibration test at a specific angle.

[0025] The advantages of this invention compared to the prior art are:

[0026] 1. This invention can be adapted to stand-alone products of different sizes and interface dimensions, and has strong installation versatility;

[0027] 2. This invention provides a quick assembly mechanism for specific functions that can be installed on a standalone machine, and it is highly convenient to operate.

[0028] 3. This invention can perform random vibration tests in conventional triaxial and six-axis directions as well as at specific angles, and has strong test function coverage. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 This is an overall outline drawing of the universal tooling of the present invention.

[0031] Figure 2 This is a structural diagram of the general tooling of the present invention.

[0032] Figure 3 This is a structural diagram of the universal tooling slider assembly of the present invention.

[0033] Figure 4This is a structural diagram of the universal tooling lifting and rotating assembly of the present invention.

[0034] Figure 5 This is an exploded view of the general tooling of the present invention.

[0035] Among them, 1-reinforcing rib, 2-base plate, 3-vertical plate, 4-longitudinal sliding guide rail, 5-rotating guide rail, 6-sliding block, 7-transfer block, 8-rotating shaft, 9-lifting bushing, 10-connecting rod. Detailed Implementation

[0036] To better understand the above technical solutions, the technical solutions of this application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments of this application and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0037] The following description, in conjunction with the accompanying drawings, provides a more detailed account of a general-purpose, single-unit, rapid-loading random vibration device and vibration testing method provided in this application. Specific implementation methods may include (e.g.) Figure 1 , 2 (As shown in Figure 5): base plate, vertical plate; the side of the vertical plate is fixedly installed on the base plate; the front of the vertical plate is provided with a slider assembly, a lifting and rotating assembly, a longitudinal sliding guide rail, and a rotating guide rail;

[0038] The longitudinal sliding guide rail is located at both ends in two tracks set on the front of the vertical plate, and its two ends slide synchronously along the tracks; the longitudinal sliding guide rail is provided with a track for rotating the guide rail to slide.

[0039] The two ends of the rotating guide rail are respectively located in the tracks on two different longitudinal sliding guide rails. As the longitudinal sliding guide rails move, the two ends of the rotating guide rail slide synchronously in the tracks on the longitudinal sliding guide rails, while the rotating guide rail rotates around its axis. The rotating guide rail is provided with a slider assembly.

[0040] The lifting and rotating assembly, through the slider assembly, achieves a change in its height relative to the front of the vertical plate while the rotating guide rail rotates around its axis.

[0041] The solution provided in this application embodiment is a general-purpose single-machine quick-loading random vibration device, characterized in that it includes: a slider assembly, a lifting and rotating assembly, a reinforcing rib 1, a base plate 2, a vertical plate 3, a longitudinal sliding guide rail 4, and a rotating guide rail 5. The slider assembly comprises four sets.

[0042] like Figure 3 The slider assembly includes: a slider block 6 and a transition block 7.

[0043] Furthermore, the adapter block 7 is connected to the slot of the rotating guide rail 5 by a pin, allowing the adapter block 7 to move back and forth linearly along the slot on the surface of the rotating guide rail 5. The sliding block 6 has a slot on its side, which engages with a protrusion on the side of the adapter block 7, allowing the sliding block 6 to slide on the surface of the adapter block 7. The sliding between the adapter block 7 and the rotating guide rail 5, and the sliding between the sliding block 6 and the adapter block 7, work together to further increase the range of motion of the sliding block 6. The surface of the sliding block 6 has three different sizes of threaded holes to accommodate single machines of different sizes.

[0044] like Figure 4 In one possible implementation, the lifting and rotating assembly includes: a rotating shaft 8, a lifting bushing 9, and a connecting rod 10.

[0045] In one possible implementation, the rotating shaft 8 is fixedly connected to the vertical plate 3, and the lifting sleeve 9 is mounted on the rotating shaft 8 through the through hole in the middle. The lifting sleeve 9 can move linearly along the rotating shaft 8 and rotate around the rotating shaft 8. The two ends of the connecting rod 10 are respectively connected to the sliding block 6 and the lifting sleeve 9 through rotating pins, and the connecting rod 10 can rotate around the pins at both ends.

[0046] Furthermore, in one possible implementation, when the lifting sleeve 9 moves linearly along the rotating shaft 8, it drives the sliding block 6 and the transition block 7 to reciprocate linearly on the surface of the rotating guide rail 5 via the connecting rod 10. When the rotating guide rail 5 rotates, the sliding block 6 on it also rotates accordingly. Two connecting rods 10 are respectively installed at both ends of one lifting sleeve 9 and connected to two sliding blocks 6. In this case, the movement of the two sliding blocks 6 can be controlled by moving only one lifting sleeve 9.

[0047] Furthermore, the longitudinal sliding guide rail 4 is mounted on the vertical plate 3 by detachable pins, allowing it to move back and forth in a straight line along the groove of the vertical plate 3. Simultaneously, the two ends of the rotating guide rail 5 are connected to the grooves on the longitudinal sliding guide rail 4 by pins. When the longitudinal sliding guide rail 4 is moved, the pins at both ends of the rotating guide rail 5 move in a straight line along the grooves on the longitudinal sliding guide rail 4, ultimately converting the translational motion of the longitudinal sliding guide rail 4 into the rotational motion of the rotating guide rail 5 around the rotation axis 8.

[0048] Optionally, in one possible implementation, there are two rotating guide rails 5 and two longitudinal sliding guide rails 4, wherein the pins at one end of the two different rotating guide rails 5 are installed in the groove of the longitudinal sliding guide rail 4 on the same side. In this case, the rotation angle of the other two rotating guide rails 5 can be controlled by moving only one of the longitudinal sliding guide rails 4.

[0049] In one possible implementation, the surface of the vertical plate 3 is engraved with rotation degree markings. After the longitudinal sliding guide rail 4 is removed by a detachable pin, the two rotating guide rails 5 can rotate at different angles on the surface of the vertical plate. By aligning the rotating guide rails 5 with different degree markings, the product under test, which is fixed to them, can rotate to the corresponding angle to achieve a vibration test at a specific angle.

[0050] Depending on the type of unit, its shape and installation interface vary. This invention utilizes a sliding groove and slider mechanism to allow for arbitrary adjustment of the interface size to accommodate different products. Simultaneously, the cooperation between the connecting rod and the longitudinal guide rail ensures ease of operation; simply moving one guide rail controls the position of all four interface connection points. The rotation of the two rotating guide rails further expands the applicability of this invention. Furthermore, the various threads on the sliding block surface allow for adjustment of the mounting screw size according to usage requirements and interface dimensions. After removing the longitudinal sliding guide rail, the two rotating guide rails rotate at different angles, thereby achieving vibration testing at specific angles. This invention offers strong adaptability, simple operation, and improved work efficiency and testing stability.

[0051] When one of the longitudinal sliding guide rails 4 is pulled, the end of the rotating guide rail 5 is connected to the groove on the surface of the longitudinal sliding guide rail 4 via a pin. Therefore, the rotating guide rail 5 will rotate around the rotating shaft 8 as the longitudinal sliding guide rail 4 is translated. At this time, since one end of the two different rotating guide rails 5 is connected to the longitudinal sliding guide rail 4 on the same side, the rotation of the two rotating guide rails 5 can be controlled by moving only one side of the longitudinal sliding guide rail 4. Through the connection between the other end of the rotating guide rail 5 and the longitudinal sliding guide rail 4 on the other side, the movement of the longitudinal sliding guide rail 4 on the other side is driven.

[0052] When the rotating guide rail 5 is rotated to the desired position, the moving lifting bushing 9 is moved. Two connecting rods 10, symmetrically mounted at both ends of the bushing, simultaneously drive the sliding blocks 6 and the transition blocks 7 on both sides to move within the sliding grooves on the surface of the rotating guide rail 5. The threaded holes on the sliding blocks 6 are aligned with the semi-circular grooves on the vertical plate 3. Screws are passed through the semi-circular grooves to fix the product to be tested to the sliding blocks, thus securing the product to the fixture. Different semi-circular groove radii correspond to different dimensions of the product being tested. After assembling the vertical plate 3, the base plate 2, and the reinforcing ribs 1, the base plate is fixed to the vibration table for vibration testing.

[0053] After removing the longitudinal sliding guide rail 4 by using the detachable pin, rotate the two rotating guide rails 5 respectively to align them with the scale on the surface of the vertical plate 3. After rotating to the required angle, adjust the sliding block 6 to the appropriate position, install the product under test, and conduct a vibration test at a specific angle.

[0054] After the tested product is fixed to the sliding block 6, the rotating guide rail 5 is also pressed against the surface of the vertical plate 3 by the sliding block 6 and cannot rotate. Under the action of the pins at both ends of the rotating guide rail 5, the longitudinal sliding guide rail 4 connected to it is also locked, and the overall structure is in a locked state, so that it will not move during vibration, thus leading to inaccurate test results. The reinforcing ribs 1 symmetrically arranged on both sides of the vertical plate also ensure the overall strength and rigidity of the fixture.

[0055] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0056] The contents not described in detail in this specification are common knowledge to those skilled in the art.

Claims

1. A universal single-machine rapid loading random vibration device, characterized in that, Includes a base plate (2) and a vertical plate (3); the side of the vertical plate (3) is fixedly installed on the base plate (2); the front of the vertical plate (3) is provided with a slider assembly, a lifting and rotating assembly, a longitudinal sliding guide rail (4), and a rotating guide rail (5); The longitudinal sliding guide rail (4) has two ends located in two tracks on the front of the vertical plate (3), and its two ends slide synchronously along the tracks; the longitudinal sliding guide rail (4) is provided with a track for the sliding of the rotating guide rail (5); The two ends of the rotating guide rail (5) are respectively located in the tracks on two different longitudinal sliding guide rails (4). As the longitudinal sliding guide rail (4) moves, the two ends of the rotating guide rail (5) slide synchronously in the tracks on the longitudinal sliding guide rail (4), and the rotating guide rail (5) rotates around its axis. The rotating guide rail (5) is provided with a slider assembly. The lifting and rotating assembly, through the slider assembly, achieves a change in its height relative to the front of the vertical plate (3) while the rotating guide rail (5) rotates around its axis.

2. The universal single-unit rapid clamping random vibration device according to claim 1, characterized in that, The slider assembly includes a slider block (6) and a transition block (7); The adapter block (7) is connected to the slot of the rotating guide rail (5) by a pin, so that the adapter block (7) moves back and forth in a straight line along the slot on the surface of the rotating guide rail (5). The sliding block (6) has a groove on its side, which cooperates with the protrusion on the side of the adapter block (7) so that the sliding block (6) slides on the surface of the adapter block (7).

3. The universal single-machine rapid loading random vibration device according to claim 2, characterized in that, The sliding between the adapter block (7) and the rotating guide rail (5), and the sliding between the sliding block (6) and the adapter block (7), work together to increase the range of motion of the sliding block (6).

4. The universal single-machine rapid mounting random vibration device according to claim 2, characterized in that, The sliding block (6) has three different sizes of threaded holes on its surface to accommodate single machines of different sizes.

5. A universal single-unit rapid clamping random vibration device according to claim 1, characterized in that, The lifting and rotating assembly includes a rotating shaft (8), a lifting bushing (9), and a connecting rod (10). The rotating shaft (8) is fixedly connected to the vertical plate (3); The lifting bushing (9) is installed on the rotating shaft (8) through the through hole in the middle, and can move linearly along the rotating shaft (8) and rotate around the rotating shaft (8); connecting rods (10) are installed at both ends of the lifting bushing (9). The two ends of the connecting rod (10) are connected to the slider assembly and the lifting bushing (9) respectively by rotating pins, and the connecting rod (10) can rotate around the pins at both ends.

6. A general-purpose single-unit rapid clamping random vibration device according to claim 1, characterized in that, The longitudinal sliding guide rail (4) is installed on the vertical plate (3) by a detachable pin and moves back and forth in a straight line along the groove of the vertical plate (3). At the same time, the two ends of the rotating guide rail (5) are connected to the groove on the longitudinal sliding guide rail (4) by pins.

7. A universal single-unit rapid clamping random vibration device according to claim 1, characterized in that, There are two rotating guide rails (5) and two longitudinal sliding guide rails (4), with the pins at one end of the two different rotating guide rails (5) installed in the groove of the longitudinal sliding guide rail (4) on the same side.

8. A universal single-unit rapid loading random vibration device according to claim 7, characterized in that, The vertical plate (3) has rotation degree markings on its front side. After the longitudinal sliding guide rail (4) is removed by the detachable pin, the two rotating guide rails (5) rotate at different angles on the surface of the vertical plate. Align the rotating guide rails (5) with different degree markings and rotate the test product fixedly connected to them to the corresponding angle to achieve a vibration test at a specific angle.

9. A universal single-unit rapid clamping random vibration device according to claim 1, characterized in that, The vertical plate (3) has symmetrical reinforcing ribs (1) arranged on both sides.

10. A vibration testing method using a universal single-machine rapid-loading random vibration device as described in any one of claims 1 to 9, characterized in that, include: Pull the longitudinal sliding guide rail (4), and rotate the guide rail (5), slider assembly, and lifting rotation assembly to move accordingly; After the rotating guide rail (5) is rotated to the required angle, the product to be tested is connected to the sliding component. At the same time, the rotating guide rail (5) is pressed against the surface of the vertical plate (3) by the sliding component on it and cannot be rotated. Under the action of the pins at both ends of the rotating guide rail (5), the longitudinal sliding guide rail (4) connected to it is also locked. The overall structure is in a locked state, realizing a vibration test at a specific angle.

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