Auxiliary platform for vibration table

Abstract

The utility model discloses an auxiliary platform for vibration table belongs to electric vibration table technical field, including support platform and extension platform, and extension platform can be relative to support platform up and down activity, be provided with a plurality of elastic pieces between support platform and extension platform, and every elastic piece one side all is provided with guide mechanism, and guide mechanism is used for limiting extension platform transverse movement, and guide mechanism includes a plurality of guide blocks, and guide block top and extension platform bottom fixed connection, and guide block bottom and support platform swing joint, the beneficial effect of the utility model is that through the guide block of connecting at the extension platform bottom four corners, and every guide block's adjacent two sides all set up guide pulley seat, and set up guide wheel on guide pulley seat, and guide wheel and guide block surface nylon board contact, make extension platform can be in vertical direction activity, and extension platform four corners are limited through a plurality of guide pulley seat, avoid happening transverse movement, promote vibration stability.

Description

Technical Field

[0001] This utility model belongs to the field of electric vibration table technology, and in particular relates to an auxiliary platform for vibration table. Background Technology

[0002] A vibration table, also known as a vibration test bench, is a device used to simulate vibration environments and perform vibration tests on products. Commonly used types include electric tables (i.e., electromagnetic tables), mechanical tables, and hydraulic tables. Electric vibration tables are vibration testing devices driven by electric motors and using electromagnetic force as their core power source. They are suitable for simulating medium- and high-frequency vibration scenarios and are simple to operate and highly accurate.

[0003] To ensure the stability of the vibration process, traditional vibration tables typically have a conventional top platform design, usually 900mm×900mm. This limits the number of samples the platform can support, resulting in low vibration testing efficiency when dealing with a large number of samples. Therefore, a larger top auxiliary platform is needed to increase the number of samples that can be loaded while ensuring stability, thereby improving testing efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an auxiliary platform for vibration tables that can improve the vibration stability of large-size platforms.

[0005] To achieve the above objectives, the present invention employs the following technical solution: an auxiliary platform for a vibration table, comprising a support platform and an extension platform, wherein the extension platform is movable up and down relative to the support platform, and a plurality of elastic elements are provided between the support platform and the extension platform, each of the elastic elements having a guide mechanism on one side, the guide mechanism being used to restrict the lateral movement of the extension platform, the guide mechanism comprising a plurality of guide blocks, the top of the guide block being fixedly connected to the bottom of the extension platform, and the bottom of the guide block being movably connected to the support platform.

[0006] Optionally, the guiding mechanism further includes a guide wheel seat, which is located on one side of the guide block. A guide wheel is provided inside the guide wheel seat, and a nylon plate is connected to the outer periphery of the guide block. The guide wheel contacts the side of the nylon plate to limit the movement of the guide block.

[0007] Optionally, the support platform includes a support frame and connecting plates located at each corner of the support frame. The connecting plates are located at the top of the support frame, and the top of the connecting plates has several mounting holes for mounting guide wheel seats.

[0008] Optionally, each of the connecting plates is provided with a guide hole, the guide hole and the guide block are slidably connected.

[0009] Optionally, the elastic element is a gas spring, with the top of the gas spring fixedly connected to the extension platform and the bottom of the gas spring fixedly connected to the connecting plate.

[0010] Optionally, each of the connecting plates is connected to two guide wheel seats, which are used to limit the two adjacent sides of the guide block respectively.

[0011] Optionally, the bottom of the extension platform is provided with a mounting part, which is used to connect the power mechanism.

[0012] Optionally, a through hole is provided at the center of the expansion platform.

[0013] Optionally, the bottom of the support platform is provided with multiple support plates, which are located at each corner of the support platform, and several columns are fixedly connected to the bottom of the support plates.

[0014] Optionally, the connecting plate is also provided with a connecting ring.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By connecting guide blocks at the four corners of the bottom of the expansion platform, and setting guide wheel seats on both sides of each guide block, the expansion platform can move vertically. The four corners of the expansion platform are limited by multiple guide wheel seats to prevent lateral movement and improve vibration stability. The support platform has a hollow design, and the top of the connecting plate has a guide hole. The guide hole is located below the hollow part of the support frame, which facilitates the guide block to slide vertically along the guide hole, further improving stability. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model. Figure 2 The image shown is a top view of the support platform of this utility model; Figure 3 The image shown is a bottom view of the support platform of this utility model. Figure 4 The image shown is a side view of the support platform of this utility model; Figure 5 The image shown is a top view of the guide mechanism of this utility model; Figure 6 The image shown is a side view of the guide mechanism of this utility model; Figure 7 The diagram shown is a schematic diagram of the extension platform of this utility model from different perspectives.

[0017] In the diagram: 1. Support platform; 101. Support frame; 102. Connecting plate; 103. Mounting hole; 104. Guide hole; 105. Support plate; 2. Extension platform; 201. Mounting part; 202. Through hole; 3. Elastic element; 4. Guide mechanism; 401. Guide block; 402. Guide wheel seat; 403. Guide wheel; 5. Column; 6. Connecting ring. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1 Reference Figures 1-7 This embodiment provides an auxiliary platform for a vibration table, specifically including a support platform 1 and an extension platform 2. The extension platform 2 can move up and down relative to the support platform 1. A plurality of elastic elements 3 are provided between the support platform 1 and the extension platform 2. Each elastic element 3 has a guide mechanism 4 on one side. The guide mechanism 4 is used to restrict the lateral movement of the extension platform 2. The guide mechanism 4 includes a plurality of guide blocks 401. The top of the guide block 401 is fixedly connected to the bottom of the extension platform 2, and the bottom of the guide block 401 is movably connected to the support platform 1.

[0022] The extension platform 2 has a rectangular structure with C-shaped corners. The guide mechanism 4 limits the four corners of the extension platform 2, restricting its movement to the vertical direction only to prevent lateral movement. The elastic element 3 is located at the outermost edge of the corner of the extension platform 2, and the guide mechanism 4 is located on one side of the elastic element 3.

[0023] Multiple limiting points are installed at each corner of the expansion stage 2 to ensure the stability of the vibration process. The large-sized expansion stage 2 increases the number of load samples and improves the sample testing efficiency.

[0024] Example 2 This embodiment provides an auxiliary platform for a vibration table. The difference from Embodiment 1 is that the guide mechanism 4 further includes a guide wheel seat 402. The guide wheel seat 402 is located on one side of the guide block 401, and a guide wheel 403 is disposed within the guide wheel seat 402. A nylon plate is connected to the outer periphery of the guide block 401, and the guide wheel 403 contacts the side of the nylon plate to limit the movement of the guide block 401. The support platform 1 includes a support frame 101 and connecting plates 102 located at each corner of the support frame 101. The connecting plates 102 are located at the top of the support frame 101, and a plurality of mounting holes 103 are formed at the top of the connecting plates 102 for mounting the guide wheel seat 402. Each connecting plate 102 has a guide hole 104, and the guide holes 104 correspond one-to-one with the positions of the guide blocks 401, with the guide blocks 401 slidably connected to the guide holes 104.

[0025] The guide block 401 is a quadrangular prism. Two guide wheel seats 402 are provided at each corner of each extension platform 2. The two guide wheel seats 402 limit the movement of two adjacent faces of the guide block 401. A total of eight guide wheel seats 402 limit the movement of the four guide blocks 401 at the four corners of the extension platform 2. The guide block 401 is vertically offset from the support frame 101, preventing interference with the support frame 101 when the guide block 401 slides along the guide hole 104.

[0026] The elastic element 3 is a gas spring. The top of the gas spring is fixedly connected to the extension platform 2, and the bottom of the gas spring is fixedly connected to the connecting plate 102.

[0027] Each connecting plate 102 is connected to two guide wheel seats 402, which are used to limit the two adjacent sides of the guide block 401 respectively.

[0028] The extension platform 2 has a mounting section 201 at its bottom, which is used to connect the power mechanism. A through hole 202 is provided at the center of the extension platform 2.

[0029] Multiple support plates 105 are provided at the bottom of the support platform 1, and the support plates 105 are located at each corner of the support platform 1. Several columns 5 are fixedly connected to the bottom of the support plates 105. A connecting ring 6 is also provided on the connecting plate 102.

[0030] The power mechanism is a common vibration table device in this field, located below the extended stage 2. The thrust of the power mechanism is 40 kN, the frequency is 1-2000 Hz, and the acceleration is 900 m / s². 2 The moving coil weighs 40kg and measures 1500mm×1500mm. The large-size platform increases the number of samples it can support. The platform is manufactured using welding and is made of aluminum alloy to meet the requirements for vibration strength and stiffness.

[0031] In use, place the external power mechanism under the extension platform 2, install the guide wheel seats 402 at each corner in sequence with bolts, insert the guide blocks 401 at each corner of the extension platform 2 into the guide holes 104 at the corresponding positions to connect the support platform 1 and the extension platform 2, and then connect the mounting part 201 to the power mechanism. With the extension platform 2 in an initial state of being horizontal, the installation process of the equipment is completed. After that, place the sample on the extension platform 2 and start the power mechanism to test the sample.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An auxiliary platform for a vibration table, characterized in that, It includes a support platform (1) and an extension platform (2). The extension platform (2) can move up and down relative to the support platform (1). A plurality of elastic elements (3) are provided between the support platform (1) and the extension platform (2). Each elastic element (3) has a guide mechanism (4) on one side. The guide mechanism (4) is used to restrict the lateral movement of the extension platform (2). The guide mechanism (4) includes a plurality of guide blocks (401). The top of the guide block (401) is fixedly connected to the bottom of the extension platform (2), and the bottom of the guide block (401) is movably connected to the support platform (1).

2. The auxiliary platform for a vibration table according to claim 1, characterized in that, The guiding mechanism (4) further includes a guide wheel seat (402), which is located on one side of the guide block (401). A guide wheel (403) is provided inside the guide wheel seat (402). A nylon plate is connected to the outer periphery of the guide block (401). The guide wheel (403) contacts the side of the nylon plate and is used to limit the guide block (401).

3. The auxiliary platform for a vibration table according to claim 2, characterized in that, The support platform (1) includes a support frame (101) and a connecting plate (102) located at each corner of the support frame (101). The connecting plate (102) is located on the top of the support frame (101), and a plurality of mounting holes (103) are provided on the top of the connecting plate (102). The mounting holes (103) are used to install guide wheel seats (402).

4. The auxiliary platform for a vibration table according to claim 3, characterized in that, Each of the connecting plates (102) is provided with a guide hole (104), the guide hole (104) and the guide block (401) are in one-to-one correspondence, and the guide block (401) and the guide hole (104) are slidably connected.

5. The auxiliary platform for a vibration table according to claim 4, characterized in that, The elastic element (3) is a gas spring. The top of the gas spring is fixedly connected to the extension platform (2), and the bottom of the gas spring is fixedly connected to the connecting plate (102).

6. The auxiliary platform for a vibration table according to claim 3, characterized in that, Each of the connecting plates (102) is connected to two guide wheel seats (402), and the two guide wheel seats (402) are respectively used to limit the two adjacent sides of the guide block (401).

7. The auxiliary platform for a vibration table according to claim 1, characterized in that, The bottom of the extension platform (2) is provided with a mounting part (201), which is used to connect the power mechanism.

8. The auxiliary platform for a vibration table according to claim 7, characterized in that, The extension platform (2) has a through hole (202) at its center.

9. The auxiliary platform for a vibration table according to claim 1, characterized in that, The bottom of the support platform (1) is provided with multiple support plates (105), the support plates (105) are located at each corner of the support platform (1), and several columns (5) are fixedly connected to the bottom of the support plates (105).

10. The auxiliary platform for a vibration table according to claim 3, characterized in that, The connecting plate (102) is also provided with a connecting ring (6).

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