Analog vibration device for compact range testing

Abstract

This utility model relates to the field of compression field testing technology, and in particular to a simulated vibration device for compression field testing, including a housing and a support at the bottom of the housing. The support has feet connected to the bottom. It also includes: a first traveling structure and a second traveling structure, the first traveling structure being connected to the support and the second traveling structure being slidably mounted on the first traveling structure; a sliding platform sliding on the second traveling structure, on which a vibration source is mounted; and a lifting assembly for adjusting the distance between the vibration source and the bottom of the housing. Through the first and second traveling structures, the sliding platform can be moved laterally and longitudinally on a plane, thereby accurately placing the vibration source in a selected position. The lifting assembly also adjusts the distance between the vibration source and the bottom of the housing, facilitating vibration operation of the housing by the vibration source and preventing wear on the housing during movement.

Description

Technical Field

[0001] This utility model relates to the field of compression field testing technology, and in particular to a simulated vibration device for compression field testing. Background Technology

[0002] The compact field test simulation vibration device is a high-precision device specifically designed to simulate actual vibration conditions in a compact field test environment. It is mainly used to evaluate the electromagnetic performance stability of devices such as antennas, satellite components, and vehicle communication systems under vibration environments.

[0003] A search revealed Chinese patent publication number CN220708678U, which discloses a vibration simulation device for a compression field test, including a compression field test piece and a vibration source disposed on the bottom surface of the compression field test piece; the vibration source includes a motor mounting base; a vibration motor is fixedly installed inside the motor mounting base; both output ends of the vibration motor are provided with a fixed eccentric wheel and an adjusting eccentric wheel; a positioning hole is opened on the circumferential side of the adjusting eccentric wheel; positioning rings are fixedly connected to both opposite sides of the connecting plate; a rotatable mechanism is provided between the two positioning rings to engage with the positioning holes on the two adjusting eccentric wheels.

[0004] When the above-mentioned patent is used, its vibration source (vibration motor) can slide along the slide plate on the side of the support plate to adjust the position of the vibration source and complete the vibration simulation test of the vibration source at different positions. This facilitates the comparative experiment and improves the integrity of the compaction field test data. However, when the device is used, after the vibration source is moved to the selected position at the bottom of the compaction field dark box, bolts are needed to fix the vibration source at the bottom of the dark box. This results in a long time being spent each time the vibration source is moved. In addition, the support plate and the dark box are in a fixed connection state and are inconvenient to move. Therefore, the movable range of the vibration source is limited and it cannot effectively act on various positions at the bottom of the dark box.

[0005] Based on the above situation, it is necessary to design a simulated vibration device for compaction field testing to solve the above problems. Utility Model Content

[0006] This invention provides a simulated vibration device for compaction field testing, which solves the problems of long time consumption and limited movable range of vibration source in the prior art.

[0007] The technical problem solved by this utility model is achieved by the following technical solution:

[0008] A simulated vibration device for a compaction field test includes a housing and a support at the bottom of the housing, the bottom of the support being connected to a foot. It also includes: a first traveling structure and a second traveling structure, the first traveling structure being connected to the support and the second traveling structure being slidably mounted on the first traveling structure; a sliding platform sliding on the second traveling structure, the sliding platform being provided with a vibration source; and a lifting assembly for adjusting the distance between the vibration source and the bottom of the housing.

[0009] Preferably, there are two first traveling structures arranged in parallel on the support. Each first traveling structure includes a threaded rod rotatably connected to the support and a sliding rod connected to the support. A slider is threadedly connected to the threaded rod, and the slider is slidably connected to the sliding rod.

[0010] Preferably, one end of each of the two threaded rods on the first traveling structure is connected to a gear assembly, a drive shaft is connected between the two gear assemblies, and a motor is mounted on the bracket, the output end of which is connected to the end of the threaded rod.

[0011] Preferably, the gear assembly includes a driving bevel gear connected to one end of the threaded rod and a driven bevel gear connected to the end of the drive shaft.

[0012] Preferably, the second traveling structure includes a threaded rod rotatably connected to the end of a slider 1 and a sliding rod 2 connected to the slider 1. The threaded rod 2 is threadedly connected to the slider 2, and the slider 2 is slidably connected to the sliding rod 2. A motor 2 is mounted on the slider 1, and the output end of the motor 2 is connected to the threaded rod 2. The sliding platform is connected to the slider 2.

[0013] Preferably, the lifting assembly includes a vertical slide rail connected to the sliding platform, a mounting frame slidably connected to the vertical slide rail, a lifting component connected to the bottom of the mounting frame, a transverse track connected to the sliding platform, a top block slidably connected to the transverse track, and a telescopic rod installed on the sliding platform; wherein, the vibration source is installed on the mounting frame; and the movable end of the telescopic rod is connected to a push rod connected to the top block.

[0014] Preferably, the bottom of the lifting component has an inclined surface, and a groove is formed on the inclined surface, and the top of the top block slides in the groove.

[0015] The beneficial effects of this utility model are as follows: Through the first and second traveling structures, the sliding platform can be moved laterally and longitudinally on the plane, thereby accurately placing the vibration source at the selected position. Under the action of the lifting component, the distance between the vibration source and the bottom of the box can be adjusted, which facilitates the vibration operation of the vibration source on the box and avoids wear on the box during the movement of the vibration source. In this operation, after the vibration source is moved to the selected position at the bottom of the compaction box, vibration operation can be achieved without the use of bolts for fixing, which simplifies the operation and saves time and costs. Secondly, it increases the movable range of the vibration source and more effectively acts on various positions at the bottom of the box. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 For the present utility model Figure 1 Schematic diagram of the middle section;

[0019] Figure 3 This is a schematic diagram of the first and second traveling structures of this utility model;

[0020] Figure 4 This is a schematic diagram of the lifting component structure of this utility model;

[0021] Figure 5 For the present utility model Figure 4 A schematic diagram of a local part of the structure.

[0022] In the diagram: 1. Box body; 2. Bracket; 3. Support leg; 4. First traveling structure; 41. Slide rod one; 42. Threaded rod one; 43. Slider one; 5. Second traveling structure; 51. Slide rod two; 52. Threaded rod two; 53. Slider two; 6. Sliding platform; 7. Lifting assembly; 71. Vertical slide rail; 72. Mounting bracket; 73. Lifting component; 74. Horizontal track; 75. Telescopic rod; 76. Top block; 77. Push rod; 8. Drive shaft; 9. Motor one; 10. Driving bevel gear; 11. Driven bevel gear; 12. Motor two; 13. Slide groove; 14. Vibration source. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0024] Reference Figures 1-5 As shown, a simulated vibration device for a compression field test includes a housing 1 and a support 2 located at the bottom of the housing 1. The bottom of the support 2 is connected to a foot 3. The housing 1 is a compression field dark chamber for compression field testing. This structure is existing technology and will not be described in detail. To address the issue of limited mobility of the vibration source 14 in the prior art, the device further includes: a first traveling structure 4 and a second traveling structure 5. The first traveling structure 4 is connected to the support 2, and the second traveling structure 5 is slidably mounted on the first traveling structure 4; a sliding platform 6, sliding on the second traveling structure 5, on which the vibration source 14 is mounted. The vibration source 14 is preferably a vibration motor, which is existing technology and mainly used to provide vibration to the housing 1. The type of vibration motor is not limited; it can be selected according to the actual application scenario. The vibration motor contacts the housing 1 to transmit vibration to the housing 1. This is existing technology and will not be described in detail; a lifting assembly 7 is used to adjust the distance between the vibration source 14 and the bottom of the housing 1.

[0025] When the above structure is in use, when it is necessary to move the vibration source 14 to a selected position at the bottom of the housing 1, simply drive the sliding platform 6 to move on the first traveling structure 4, and the vibration source 14 will move linearly along the selected direction. Then, run the second traveling structure 5, which will drive the first traveling structure 4 to move in a direction perpendicular to the moving direction of the sliding platform 6. With the cooperation of the first traveling structure 4 and the second traveling structure 5, the vibration source 14 can be moved to the selected position. Then, use the lifting component 7 to lift the vibration source 14 to a state of contact with the bottom of the housing 1. When the vibration source 14 is running, its vibration effect will be transmitted to the housing 1, and the vibration operation of the housing 1 can be completed.

[0026] The first traveling structure 4 consists of two parallel structures arranged on the bracket 2, with a distance between them. The distance between the two first traveling structures 4 and their respective installation positions are selected according to the actual usage. The first traveling structure 4 includes a threaded rod 42 rotatably connected to the bracket 2 and a sliding rod 41 connected to the bracket 2. A slider 43 is threadedly connected to the threaded rod 42, and the slider 43 is slidably connected to the sliding rod 41. When the threaded rod 42 is rotated, the slider 43 will move along the axial direction of the threaded rod 42 under the action of the sliding rod 41.

[0027] Reference Figure 3As shown, furthermore, one end of each of the threaded rods 42 on the two first traveling structures 4 is connected to a gear assembly, and a transmission shaft 8 is connected between the two gear assemblies. A motor 9 with its output end connected to the end of the threaded rod 42 is mounted on the bracket 2. When the motor 9 drives the threaded rod 42 to rotate, it can drive the other threaded rod 42 to rotate through the gear assembly and the transmission shaft 8. Therefore, a single motor can drive the two threaded rods 42 to rotate synchronously, thereby realizing the synchronous movement of the two sliders 43.

[0028] The gear assembly includes a driving bevel gear 10 connected to the end of the threaded rod 42 and a driven bevel gear 11 connected to the end of the transmission shaft 8. The driving bevel gear 10 and the driven bevel gear 11 mesh with each other to achieve torque direction. The motor 9 drives the driving bevel gear 10 to rotate through the threaded rod 42, which in turn drives the driven bevel gear 11 to rotate. Then, through the transmission shaft 8, it can drive the gear assembly on another threaded rod 42 to run. Specifically, the transmission rod drives the driven bevel gear 11 to rotate, which in turn drives the threaded rod 42 to rotate through the driving bevel gear 10 that meshes with it.

[0029] Reference Figure 3 As shown, the second traveling structure 5 further includes a threaded rod 52 rotatably connected to the end of the slider 43 and a sliding rod 51 connected to the slider 43. The threaded rod 52 is threadedly connected to the slider 53, and the slider 53 is slidably connected to the sliding rod 51. A motor 12 is installed on the slider 43, and the output end of the motor 12 is connected to the threaded rod 52. The sliding platform 6 is connected to the slider 53. The motor 12 drives the threaded rod 52 to rotate, and under the action of the sliding rod 51, the slider 53 moves in a straight line. The threaded rod 52 moves with the slider 43. Then, under the action of the threaded rod 42, the slider 53 moves in a direction perpendicular to the direction of movement of the slider 43. Under the action of the first traveling structure 4 and the second traveling structure 5, a two-dimensional coordinate system is provided for the vibration source 14 on the sliding platform 6, so that the vibration source 14 can be moved to any position in the plane, providing more contact positions between the vibration source 14 and the housing 1.

[0030] Reference Figure 4 as well as Figure 5As shown, the lifting assembly 7 further includes a vertical slide rail 71 connected to the sliding platform 6, a mounting bracket 72 slidably connected to the vertical slide rail 71, a lifting component 73 connected to the bottom of the mounting bracket 72, a transverse track 74 connected to the sliding platform 6, a top block 76 slidably connected to the transverse track 74, and a telescopic rod 75 installed on the sliding platform 6; wherein, the vibration source 14 is installed on the mounting bracket 72; the movable end of the telescopic rod 75 is connected to a push rod 77 connected to the top block 76, the bottom of the lifting component 73 has an inclined surface, and a groove 13 is opened on the inclined surface, and the top of the top block 76 slides in the groove 13;

[0031] When the movable end of the telescopic rod 75 moves the top block 76 back and forth, the top block 76 abuts against the bottom of the lifting member 73, thus pushing the lifting member 73 to move. Due to the limitation imposed by the vertical slide 71 on the mounting bracket 72, the lifting member 73 can only move longitudinally. When the top block 76 pushes the lifting member 73 upward, it pushes the vibration source 14 upward, bringing it into contact with the bottom of the housing 1. Then, the vibration source 14 is activated, providing vibration to a specific location on the housing 1. When it is necessary to move the vibration source 14, the relative positions of the vibration source 14 and the housing 1 are adjusted. When the position is reached, simply retracting the top block 76 via the telescopic rod 75 will cause the lifting component 73 to move downwards. Under the action of gravity, the vibration source 14 will move downwards. Then, through the first traveling structure 4 and the second traveling structure 5, the sliding platform 6 and the vibration source 14 are moved, thereby realizing the displacement operation of the vibration source 14. Furthermore, the control and drive of the lifting component 7, the first traveling structure 4, and the second traveling structure 5 can be achieved through manual start-up or system control. Both are existing technologies and can be selected according to actual use, without further explanation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A simulated vibration device for a compression field test, comprising a housing (1) and a support (2) disposed at the bottom of the housing (1), wherein the bottom of the support (2) is connected to a foot (3), characterized in that, Also includes: The first traveling structure (4) and the second traveling structure (5) are connected to the bracket (2) and the second traveling structure (5) is slidably disposed on the first traveling structure (4); The sliding platform (6) slides on the second traveling structure (5), and the sliding platform (6) is provided with a vibration source (14). Lifting assembly (7) is used to adjust the distance between the vibration source (14) and the bottom of the housing (1).

2. The simulated vibration device for testing a compression field according to claim 1, characterized in that, The first traveling structure (4) consists of two parts, which are arranged in parallel on the bracket (2). The first traveling structure (4) includes a threaded rod (42) rotatably connected to the bracket (2) and a sliding rod (41) connected to the bracket (2). A slider (43) is threadedly connected to the threaded rod (42), and the slider (43) is slidably connected to the sliding rod (41).

3. The simulated vibration device for a compression field test according to claim 2, characterized in that, One end of the threaded rod (42) on the two first travel structures (4) is connected to a gear assembly, and a drive shaft (8) is connected between the two gear assemblies. A motor (9) with its output end connected to the end of the threaded rod (42) is installed on the bracket (2).

4. The simulated vibration device for a compression field test according to claim 3, characterized in that, The gear assembly includes a driving bevel gear (10) connected to the end of the threaded rod (42) and a driven bevel gear (11) connected to the end of the drive shaft (8).

5. The simulated vibration device for a compression field test according to claim 2, characterized in that, The second traveling structure (5) includes a threaded rod (52) rotatably connected to the end of a slider (43) and a sliding rod (51) connected to the slider (43). A slider (53) is threadedly connected to the threaded rod (52). The slider (53) and the sliding rod (51) are slidably connected. A motor (12) is installed on the slider (43). The output end of the motor (12) is connected to the threaded rod (52). The sliding platform (6) is connected to the slider (53).

6. The simulated vibration device for a compression field test according to claim 1, characterized in that, The lifting assembly (7) includes a vertical slide rail (71) connected to the sliding platform (6), a mounting frame (72) slidably connected to the vertical slide rail (71), a lifting component (73) connected to the bottom of the mounting frame (72), a transverse track (74) connected to the sliding platform (6), a top block (76) slidably connected to the transverse track (74), and a telescopic rod (75) installed on the sliding platform (6); wherein, the vibration source (14) is installed on the mounting frame (72); the movable end of the telescopic rod (75) is connected to a push rod (77) connected to the top block (76).

7. The simulated vibration device for a compression field test according to claim 6, characterized in that, The bottom of the lifting component (73) has an inclined surface, and a groove (13) is provided on the inclined surface. The top of the top block (76) slides in the groove (13).

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