Vertical vibration device for vibration test

Abstract

A vertical vibration device for a vibration test comprises a vibration exciter, the output end of the vibration exciter is provided with a bearing supporting plate, the top of the bearing supporting plate is provided with a decoupling mechanism, the upper portion of the decoupling mechanism is connected with a vibration working table, the decoupling mechanism comprises an upper sliding way assembly and a lower sliding way assembly, and the upper sliding way assembly is a square sliding rail arranged at the lower end of the vibration working table. The four edges of the square sliding rail are connected with switching sliding blocks in a sliding mode. The lower slide way assembly is a cross-shaped sliding rail arranged at the upper end of the bearing supporting plate, and four branches of the cross-shaped sliding rail are in sliding connection with the lower ends of the switching sliding blocks on the four sides of the square sliding rail correspondingly. According to the utility model, through the cooperation of the sliding blocks and the sliding rails, the vibration working table can simultaneously slide in the X direction and the X direction relative to the bearing supporting plate, so that the overall mass of the vibration working table is reduced, and the effective output of the vibration exciter is increased; and the square slide rails are matched with the cross slide rails, so that the connection stability is improved, and the vibration working table is prevented from overturning during movement.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration test equipment, and particularly relates to a vertical vibration device for vibration tests. Background Technique

[0002] Vibration test is a test method used to evaluate the ability of a product to withstand various vibration environments during transportation, installation, or use. Its main purpose is to determine whether the product can withstand these vibration environments, thereby ensuring the reliability and shock resistance of the product.

[0003] During vibration tests, the vibration table usually needs to vibrate simultaneously in the vertical and horizontal directions. To avoid interference between the vertical vibration and the horizontal vibration, a bearing support plate needs to be set at the output end of the vertical exciter, and a decoupling mechanism with a bearing function is set on the bearing support plate for installing the vibration operation table. The decoupling mechanism is used to reduce the interference of horizontal vibration on vertical vibration. However, when vibrating simultaneously in the X and Y directions in the horizontal direction, multiple decoupling devices are required to cooperate to eliminate the influence of horizontal vibration, which increases the overall weight of the vibration operation table, increases the energy consumption of the vibration operation, and is prone to tipping.

[0004] Therefore, in view of the deficiencies in the existing technology, it is necessary to design a vertical vibration device for vibration tests to solve the above problems.

[0005] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely explaining the technical solution of the present utility model and facilitating the understanding of those skilled in the art. It cannot be considered that the above content is well-known to those skilled in the art just because these contents are described in the background technology of the present utility model. Summary of the Utility Model

[0006] To overcome the above deficiencies in the existing technology, the purpose of the present utility model is to disclose a vertical vibration device for vibration tests, which solves the problems that the complex structure of the vertical decoupling device leads to increased energy consumption of the vibration operation table and is prone to tipping.

[0007] The utility model discloses a vertical vibration device for vibration testing, which comprises an exciter arranged in the vertical direction. A bearing plate is arranged at the output end of the exciter. A decoupling mechanism is arranged on the top of the bearing plate. Above the decoupling mechanism is connected a vibration working table arranged parallel to the bearing plate. The decoupling mechanism comprises an upper slideway assembly and a lower slideway assembly. The upper slideway assembly is a regular quadrilateral slide rail arranged at the lower end of the vibration working table. Transfer sliders are slidably connected to the four sides of the regular quadrilateral slide rail. The lower slideway assembly is a cross-shaped slide rail arranged at the upper end of the bearing plate. The four branches of the cross-shaped slide rail are respectively arranged corresponding to the four sides of the regular quadrilateral slide rail and are slidably connected to the lower ends of the transfer sliders on the four sides of the regular quadrilateral slide rail. The cross-shaped slide rail can freely slide along the arrangement directions of two adjacent sides of the regular quadrilateral slide rail through the transfer sliders. Only one decoupling mechanism is needed to eliminate the vibration interference influence of the vibration working table in the horizontal X direction and Y direction, reduce the weight of the vibration working table, thereby improving the effective thrust of the exciter and reducing the tipping moment.

[0008] Preferred technical solution: Both the regular quadrilateral slide rail and the cross-shaped slide rail are dovetail-shaped slide rails. Dovetail-shaped chutes matching the dovetail-shaped slide rails are arranged at the upper and lower ends of the transfer slider to ensure the connection stability between the transfer slider and the regular quadrilateral slide rail and the cross-shaped slide rail. The arrangement directions of the dovetail-shaped chutes at the upper and lower ends are in a cross shape. When connecting, only one end of the transfer slider needs to be aligned with the slide rail, reducing the installation difficulty.

[0009] Preferred technical solution: The transfer slider comprises an upper slider slidably connected to the regular quadrilateral slide rail and a lower slider slidably connected to the cross-shaped slide rail. The upper slider and the lower slider are detachably connected through a cross-shaped adapter plate, facilitating the disassembly and assembly of the transfer slider.

[0010] Preferred technical solution: The bearing plate is rotatably connected to the output end of the exciter, which is used to facilitate the correction of the decoupling mechanism and horizontal vibration.

[0011] Preferred technical solution: A plurality of vertical guiding mechanisms are arranged outside the exciter, which are used to provide direction guidance for the vibration of the exciter, reduce the extrusion friction force received outside the output shaft of the exciter, and improve the stability of vibration output.

[0012] Preferred technical solution: Blocks are arranged at the ends of the cross-shaped slide rail, and blocks are also arranged at the four corners of the regular quadrilateral slide rail to prevent the sliders on the slide rail from exceeding the limit of movement and detaching from the slide rail.

[0013] Due to the application of the above technical solutions, the beneficial effects of the utility model compared with the prior art are as follows:

[0014] The present utility model relates to a vertical vibration device for vibration tests. Through the cooperation of a slider and a slide rail, the vibration operation table can perform sliding movements in the X direction and the X direction relative to the bearing support plate. Its structure is simple, occupies less space and has a smaller mass, thereby reducing the overall mass of the vibration operation table, and further increasing the effective output of the vibration exciter. At the same time, a regular quadrilateral slide rail is combined with a cross-shaped slide rail to improve the connection stability, and a vertical guiding mechanism is provided to prevent the vibration operation table from tipping over during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of a vertical vibration device for vibration tests of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the decoupling mechanism in the present utility model.

[0018] In the above drawings, 1 is a vibration exciter; 2 is a bearing support plate; 3 is a decoupling mechanism; 31 is an upper slideway assembly; 32 is a lower slideway assembly; 33 is a transfer slider; 33a is an upper slider; 33b is a lower slider; 33c is a cross transfer plate; 34 is a stop block; 4 is a vibration operation table; 5 is a vertical guiding mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following specific embodiments illustrate the embodiments of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

[0020] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this application here. In addition, the terms "comprising" and "having" and their synonyms are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0021] In this application, the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not intended to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0022] Moreover, in addition to being used to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to specific circumstances.

[0023] In addition, the terms "mounted", "arranged", "provided with", "connected", "coupled", "socketed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in combination with the embodiments.

[0025] Embodiment 1:

[0026] As Figure 1 shown, a vertical vibration device for vibration testing disclosed by the present utility model includes a vibrator 1 fixedly arranged on a base in the vertical direction. The output end of the vibrator 1 is connected to a horizontally arranged bearing plate 2. A decoupling mechanism 3 is provided on the top of the bearing plate 2. Above the decoupling mechanism 3 is connected a vibration operation table 4 arranged parallel to the bearing plate 2. The following will specifically describe the main components of the above present utility model:

[0027] As Figure 1 and Figure 2As shown in the figure, the decoupling mechanism 3 includes an upper slideway assembly 31, a lower slideway assembly 32, and a transfer slider 33. The upper slideway assembly 31 is a regular quadrilateral slide rail arranged at the lower end of the vibration operation table 4; the lower slideway assembly 32 is a cross-shaped slide rail arranged at the upper end of the bearing support plate 2, and the four branches of the cross-shaped slide rail are respectively arranged corresponding to the four sides of the regular quadrilateral slide rail; the transfer slider 33 includes an upper slider 33a slidably connected to the regular quadrilateral slide rail and a lower slider 33b slidably connected to the cross-shaped slide rail. The upper slider 33a and the lower slider 33b are detachably connected by a cross transfer plate 33c, so that when the vibration operation table 4 moves in two cross directions along the cross-shaped slide rail, the slider replaces the bearing support plate 2 for displacement, and the horizontal X-direction and Y-direction movements of the vibration operation table 4 will not interfere with the bearing support plate 2, reducing the mass of the decoupling mechanism 3 added to the vibration operation table 4, reducing the vibration resistance, and improving the test accuracy.

[0028] As Figure 1 and Figure 2 shown in the figure, to ensure the stability of the connection between the slider and the slide rail, both the regular quadrilateral slide rail and the cross-shaped slide rail are designed as dovetail-shaped slide rails. Dovetail-shaped chutes matching the dovetail-shaped slide rails are provided on both the upper slider 33a and the lower slider 33b. The setting directions of the dovetail-shaped chutes on the upper slider 33a and the lower slider 33b are in a cross shape. Stop blocks 34 are provided at the ends of the cross-shaped slide rail and the four corners of the regular quadrilateral slide rail to limit the movement stroke of the upper slider thereon.

[0029] Embodiment Two:

[0030] As Figure 1 and Figure 2 shown in the figure, the difference between this embodiment and Embodiment One is that the bearing support plate 2 is rotatably connected to the output end of the vibrator 1, which is convenient for the vibration operation table 4 to be docked with the horizontal vibration device.

[0031] Embodiment Three:

[0032] As Figure 1 and Figure 2 shown in the figure, the difference between this embodiment and Embodiment One is that several vertical guiding mechanisms 5 are provided outside the vibrator 1. Through the vertical guiding mechanisms 5, the sliding friction between the piston rod and the cylinder block in the vibrator 1 is indirectly converted into the rolling friction between the guiding shaft and the linear bearing in the vertical guiding mechanisms 5, reducing the wear of the internal moving parts of the vibrator 1, reducing the running resistance, and also playing a good guiding role in improving the anti-overturning ability. At the same time, the torsion and yaw of the entire device are restricted, so that the entire system maintains good stability.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vertical vibration device for vibration testing, comprising a vibrator (1) arranged in the vertical direction. A bearing tray (2) is provided at the output end of the vibrator (1). A decoupling mechanism (3) is provided at the top of the bearing tray (2). A vibration working table (4) parallel to the bearing tray (2) is connected above the decoupling mechanism (3), and it is characterized in that: The decoupling mechanism (3) includes an upper slideway assembly (31) and a lower slideway assembly (32). The upper slideway assembly (31) is a square slide rail arranged at the lower end of the vibration operation table (4), and transfer sliders (33) are slidably connected to the four sides of the square slide rail; the lower slideway assembly (32) is a cross-shaped slide rail arranged at the upper end of the bearing support plate (2), and the four branches of the cross-shaped slide rail are respectively arranged corresponding to the four sides of the square slide rail and are slidably connected to the lower ends of the transfer sliders (33) on the four sides of the square slide rail.

2. The vertical vibration device for vibration test according to claim 1, wherein: Both the square slide rail and the cross-shaped slide rail are dovetail slide rails, and dovetail chutes matching the dovetail slide rails are provided at the upper and lower ends of the transfer slider (33), and the arrangement directions of the dovetail chutes at the upper and lower ends are in a cross shape.

3. The vertical vibration device for vibration test according to claim 1, wherein: The transfer slider (33) includes an upper slider (33a) slidably connected to the square slide rail and a lower slider (33b) slidably connected to the cross-shaped slide rail, and the upper slider (33a) and the lower slider (33b) are detachably connected through a cross transfer plate (33c).

4. The vertical vibration device for vibration test according to claim 1, wherein: The bearing support plate (2) is rotatably connected to the output end of the vibrator (1).

5. The vertical vibration device for vibration test according to claim 1, characterized in that: A plurality of vertical guiding mechanisms (5) are provided outside the vibrator (1).

6. The vertical vibration device for vibration test according to claim 1, characterized in that: Blocks (34) are provided at the ends of the cross-shaped slide rail, and blocks (34) are also provided at the four corners of the square slide rail.

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