Electric vibration test platform

Abstract

The utility model relates to the technical field of vibration test equipment, and discloses an electric vibration test platform which comprises a base, a bearing seat is arranged above the base, the bearing seat can move up and down above the base, the upper surface of the bearing seat is slidably connected with a mounting table, and a driving motor is fixedly mounted on the base. The output end of the driving motor is fixedly provided with a rotating disc, the output end of the driving motor is fixedly installed at the eccentric position of the rotating disc, the eccentric position of the rotating disc is further rotationally connected with a first connecting rod, the side face of the base is fixedly connected with a mounting frame, a second connecting rod is rotationally connected into the mounting frame, and one side of the mounting table is rotationally connected with a third connecting rod; the two ends of the second connecting rod are rotationally connected with the ends of the first connecting rod and the third connecting rod correspondingly, and a moving seat with one side matched with the rotating disc is fixedly installed on the lower surface of the bearing seat. According to the utility model, the equipment is vibrated along the vertical direction and the horizontal direction at the same time, so that the data accuracy when the equipment is subjected to a vibration test is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration test equipment, in particular to an electric vibration test platform. Background Art

[0002] Electric vibration test benches are widely used in defense, aviation, aerospace, communications, electronics, automobiles, home appliances and other industries. This type of equipment is used to detect early faults, simulate actual working conditions and structural strength tests, and detect potential equipment problems early.

[0003] In order to improve the vibration effect on the product, the prior art has made many improvements to the electric vibration test platform, such as the patent publication number CN212621355U, which discloses a height-adjustable vibration test platform, which consists of a vibration motor, four springs, an upper plate, a lower plate and a lifting mechanism; the upper plate and the lower plate are arranged in parallel, the vibration motor is fixedly installed in the middle of the lower end surface of the upper plate, the four springs are respectively installed between the upper plate and the lower plate, and the lifting mechanism is installed between the upper plate and the lower plate. The utility model is a height-adjustable vibration test platform that can adjust the vibration frequency to a certain extent, has a simple design structure, low cost, and is easy to maintain.

[0004] The above patent has obvious beneficial effects, but still has the following shortcomings in actual operation:

[0005] In the above-mentioned comparative document, a vibration motor is arranged to generate vibration on the upper plate, and vibration detection is performed on the device arranged on the upper plate. However, in reality, many devices are not only shaken by the upper and lower forces, but also by the forces on both sides. The force generated by the vibration motor on the equipment in the comparative document is basically vertical, and lacks the side vibration force, which reduces the accuracy of the vibration test data. Therefore, there is an urgent need in this field to improve the electric vibration test platform to solve the defects of the existing technology. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides an electric vibration test platform, thereby achieving simultaneous vibration of the equipment in both vertical and horizontal directions, thereby improving the data accuracy when performing vibration tests on the equipment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electric vibration test platform, comprising a base, a bearing seat is provided above the base, the bearing seat can move up and down above the base, the upper surface of the bearing seat is slidably connected with a mounting platform, a driving motor is fixedly installed on the base, a rotating disk is fixedly installed on the output end of the driving motor, the output end of the driving motor is fixedly installed at an eccentric position of the rotating disk, a first connecting rod is also rotatably connected at the eccentric position of the rotating disk, a mounting frame is fixedly connected to the side of the base, a second connecting rod is rotatably connected in the mounting frame, a third connecting rod is rotatably connected to one side of the mounting platform, two ends of the second connecting rod are rotatably connected to the ends of the first connecting rod and the third connecting rod respectively, and a moving seat with one side adapted to the rotating disk is fixedly installed on the lower surface of the bearing seat.

[0008] Preferably, a mounting groove is provided on the lower side of the movable seat, a rolling wheel is provided in the mounting groove, a side surface of the rolling wheel abuts against a side surface of the rotating disk, and a mounting bolt for mounting the rolling wheel penetrates through the movable seat.

[0009] Preferably, the output end of the driving motor is fixedly connected with a rectangular limit block, one end of the limit block is fixedly installed with a threaded column, one side of the rotating disk is provided with a groove, the bottom of the groove is provided with a limit hole that passes through the rotating disk, the limit hole is adapted to the limit block, and one end of the threaded column is threadedly connected with a limit ring adapted to the groove.

[0010] Preferably, a symmetrical limiting strip is fixedly connected to the lower surface of the mounting platform, and a sliding groove adapted to the limiting strip is provided on the upper surface of the bearing seat.

[0011] Preferably, a plurality of rotation grooves are formed on the lower surface of the limit strip, and rotatable balls are embedded in the rotation grooves.

[0012] Preferably, a plurality of hollow first bearing columns are fixedly mounted on the upper surface of the base, a plurality of second bearing columns adapted to the first bearing columns are fixedly mounted on the lower surface of the bearing seat, and the lower ends of the second bearing columns are inserted into the upper ends of the first bearing columns.

[0013] Preferably, there is a gap between the lower surface of the mounting platform and the upper surface of the bearing seat.

[0014] In view of the deficiencies of the prior art, the utility model provides an electric vibration test platform, which overcomes the deficiencies of the prior art. The beneficial effects of the utility model are:

[0015] 1. In the utility model, a rotating disk is provided, and a driving motor drives the rotating disk to rotate. The cooperation of the rotating disk and the moving seat realizes the up and down vibration of the mounting platform. When the rotating disk rotates, the cooperation of the first connecting rod, the second connecting rod and the third connecting rod drives the mounting platform to vibrate in the horizontal direction, thereby realizing the simultaneous vibration of the equipment in the vertical and horizontal directions, thereby improving the data accuracy when the equipment is subjected to vibration test.

[0016] 2. In the utility model, by setting the rolling wheel, when the rotating disk rotates along the output end of the driving motor as the axis, the rolling wheel always sticks to and rotates with the side of the rotating disk, thereby reducing the power consumption of the driving motor and increasing the service life of the driving motor.

[0017] 3. In the utility model, by setting the limit block, the limit hole and the threaded column, the rotating disk can be replaced, so as to achieve the effect of adjusting the vibration amplitude of the mounting table.

[0018] 4. In the utility model, by setting limit bars, sliding grooves and balls, when the mounting platform moves horizontally on the bearing seat, the moving trajectory of the mounting platform is limited by the limit bars and sliding grooves, and the friction coefficient between the mounting platform and the bearing seat when moving is reduced by the balls, thereby reducing the power consumption of the driving motor.

[0019] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a structural schematic diagram of the first connecting rod, the second connecting rod, the third connecting rod and the rotating disk in the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the limiting block and the limiting hole in the utility model;

[0024] Figure 4 for Figure 2 The enlarged structural diagram at A in the middle;

[0025] Figure 5 for Figure 2 Enlarged structural diagram at B in the middle.

[0026] In the figure: 1. base; 2. bearing seat; 3. mounting table; 4. driving motor; 5. rotating disk; 6. first connecting rod; 7. mounting frame; 8. second connecting rod; 9. third connecting rod; 10. moving seat; 11. mounting groove; 12. rolling wheel; 13. mounting bolt; 14. limiting block; 15. threaded column; 16. groove; 17. limiting hole; 18. limiting ring; 19. limiting strip; 20. sliding groove; 21. rotating groove; 22. ball; 23. first bearing column; 24. second bearing column. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1

[0029] See also Figure 1-Figure 5 , an electric vibration test platform, including a base 1, a bearing seat 2 is provided above the base 1, the bearing seat 2 can move up and down above the base 1, a mounting platform 3 is slidably connected to the upper surface of the bearing seat 2, a driving motor 4 is fixedly installed on the base 1, a rotating disk 5 is fixedly installed on the output end of the driving motor 4, the output end of the driving motor 4 is fixedly installed at the eccentric position of the rotating disk 5, and a first connecting rod 6 is also rotatably connected to the eccentric position of the rotating disk 5, a mounting frame 7 is fixedly connected to the side of the base 1, a second connecting rod 8 is rotatably connected in the mounting frame 7, a third connecting rod 9 is rotatably connected to one side of the mounting platform 3, and the two ends of the second connecting rod 8 are rotatably connected to the ends of the first connecting rod 6 and the third connecting rod 9 respectively, a moving seat 10 with one side adapted to the rotating disk 5 is fixedly installed on the lower surface of the bearing seat 2, a plurality of hollow first bearing columns 23 are fixedly installed on the upper surface of the base 1, a plurality of second bearing columns 24 adapted to the first bearing columns 23 are fixedly installed on the lower surface of the bearing seat 2, and the lower end of the second bearing column 24 is inserted into the upper end of the first bearing column 23.

[0030] Specific implementation method in this embodiment: when it is necessary to perform a vibration test on the equipment, the equipment to be tested is installed on the mounting platform 3, and by starting the driving motor 4, the output end of the driving motor 4 drives the rotating disk 5 to rotate, and the output end of the driving motor 4 is fixedly installed on the edge of the rotating disk 5. When the rotating disk 5 rotates, it will push the movable seat 10 and the mounting platform 3 to move up, and the second bearing column 24 moves in the first bearing column 23. When the rotating disk 5 continues to rotate, the weight of the bearing seat 2, the mounting platform 3 and the equipment will cause the mounting platform 3 to move down, thereby achieving the effect of vibrating the mounting platform 3 up and down. While the rotating disk 5 rotates, it drives the first connecting rod 6 to rotate along the output end of the driving motor 4 as the axis, and the first connecting rod 6 drives the lower end of the second connecting rod 8 to move back and forth in the mounting frame 7, and the upper end of the second connecting rod 8 drives the third connecting rod 9 to move back and forth, and the third connecting rod 9 drives the mounting platform 3 slidably connected to the bearing seat 2 to move back and forth, and the driving motor 4 is used to simultaneously realize the vibration of the equipment in the up and down directions and the side directions, thereby improving the accuracy of the vibration test data of the equipment.

[0031] Among them, the above-mentioned drive motor 4 can be purchased on the market. It is a mature technology and has been fully disclosed, so it is not repeated in the specification. The drive motor 4 is equipped with a power connection line, and it is electrically connected to the external main controller and 220V phase voltage (or 380V line voltage) through the power line, and the main controller can be a conventional known device such as a computer that plays a control role.

[0032] Embodiment 2

[0033] See also Figure 4 This embodiment includes the above-mentioned embodiment, which further includes: a mounting groove 11 is opened on the lower side of the movable seat 10, a rolling wheel 12 is arranged in the mounting groove 11, the side of the rolling wheel 12 is against the side of the rotating disk 5, and a mounting bolt 13 for mounting the rolling wheel 12 is penetrated through the movable seat 10.

[0034] Specific implementation method in this embodiment: when the rotating disk 5 rotates, the rolling wheel 12 rotates against the side of the rotating disk 5, reducing the friction coefficient between the rotating disk 5 and the moving seat 10, reducing the power consumption of the driving motor 4, and the rolling wheel 12 is installed and fixed by installing bolts 13. If the rolling wheel 12 is severely worn, it can be replaced by installing bolts 13.

[0035] Implementation Three

[0036] See also Figure 3This embodiment includes all the above embodiments, and further includes: a rectangular limit block 14 is fixedly connected to the output end of the driving motor 4, a threaded column 15 is fixedly installed at one end of the limit block 14, a groove 16 is opened on one side of the rotating disk 5, and a limit hole 17 penetrating the rotating disk 5 is opened at the bottom of the groove 16, the limit hole 17 is adapted to the limit block 14, and a limit ring 18 adapted to the groove 16 is threadedly connected to one end of the threaded column 15.

[0037] Specific implementation method in this embodiment: According to the type or model of the test equipment, the rotating disk 5 of different sizes can be replaced to adjust the vibration amplitude. When replacing the rotating disk 5, the limiting ring 18 and the connecting piece between the rotating disk 5 and the first connecting rod 6 are removed, and the rotating disk 5 can be removed. The adapted rotating disk 5 is inserted into the limiting block 14 through the limiting hole 17. The limiting block 14 and the limiting hole 17 are adapted rectangular shapes. The rotating disk 5 is limited, and the limiting ring 18 is tightened. The limiting ring 18 is located in the groove 16 and will not affect the movement of the first connecting rod 6.

[0038] Implementation Four

[0039] See also Figure 1 and Figure 5 This embodiment includes all the above embodiments, and further includes: a symmetrical limit strip 19 is fixedly connected to the lower surface of the mounting platform 3, a sliding groove 20 adapted to the limit strip 19 is opened on the upper surface of the bearing seat 2, a plurality of rotating grooves 21 are opened on the lower surface of the limit strip 19, and a rotatable ball 22 is embedded in the rotating groove 21, and there is a gap between the lower surface of the mounting platform 3 and the upper surface of the bearing seat 2.

[0040] Specific implementation method in this embodiment: when the second connecting rod 8 drives the mounting platform 3 to move, the limit bar 19 slides in the sliding groove 20 to limit the position of the mounting platform 3. At the same time, through the provided ball 22, and a gap exists between the lower surface of the mounting platform 3 and the upper surface of the supporting seat 2, the friction coefficient of the mounting platform 3 is reduced when the mounting platform 3 moves, the power consumption of the driving motor 4 is reduced, and the service life of the driving motor 4 is extended.

[0041] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An electrodynamic vibration test platform, comprising a base (1), characterized in that: A bearing seat (2) is provided above the base (1), and the bearing seat (2) can move up and down above the base (1); a mounting platform (3) is slidably connected to the upper surface of the bearing seat (2); a driving motor (4) is fixedly installed on the base (1); a rotating disk (5) is fixedly installed at the output end of the driving motor (4); the output end of the driving motor (4) is fixedly installed at an eccentric position of the rotating disk (5); a first connecting rod (6) is also rotatably connected to the eccentric position of the rotating disk (5); a mounting frame (7) is fixedly connected to the side of the base (1); a second connecting rod (8) is rotatably connected inside the mounting frame (7); a third connecting rod (9) is rotatably connected to one side of the mounting platform (3); two ends of the second connecting rod (8) are rotatably connected to the ends of the first connecting rod (6) and the third connecting rod (9) respectively; and a moving seat (10) whose one side is adapted to the rotating disk (5) is fixedly installed on the lower surface of the bearing seat (2).

2. An electrodynamic vibration test platform according to claim 1, characterized in that: The lower side of the movable seat (10) is provided with a mounting groove (11), a rolling wheel (12) is arranged in the mounting groove (11), the side of the rolling wheel (12) abuts against the side of the rotating disk (5), and a mounting bolt (13) for mounting the rolling wheel (12) passes through the movable seat (10).

3. The electrodynamic vibration test platform according to claim 1, characterized in that: The output end of the driving motor (4) is fixedly connected to a rectangular limit block (14), one end of the limit block (14) is fixedly mounted with a threaded column (15), one side of the rotating disk (5) is provided with a groove (16), the bottom of the groove (16) is provided with a limit hole (17) penetrating the rotating disk (5), the limit hole (17) is adapted to the limit block (14), and one end of the threaded column (15) is threadedly connected to a limit ring (18) adapted to the groove (16).

4. The electrodynamic vibration test platform according to claim 1, characterized in that: A symmetrical limiting strip (19) is fixedly connected to the lower surface of the mounting platform (3), and a sliding groove (20) adapted to the limiting strip (19) is provided on the upper surface of the bearing seat (2).

5. The electrodynamic vibration test platform according to claim 4, characterized in that: A plurality of rotation grooves (21) are formed on the lower surface of the limiting strip (19), and rotatable balls (22) are embedded in the rotation grooves (21).

6. The electrodynamic vibration test platform according to claim 1, characterized in that: A plurality of hollow first bearing columns (23) are fixedly mounted on the upper surface of the base (1), and a plurality of second bearing columns (24) adapted to the first bearing columns (23) are fixedly mounted on the lower surface of the bearing seat (2), wherein the lower ends of the second bearing columns (24) are inserted into the upper ends of the first bearing columns (23).

7. The electrodynamic vibration test platform according to claim 5, characterized in that: There is a gap between the lower surface of the mounting platform (3) and the upper surface of the bearing seat (2).

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