Double-deck horizontal vibration table

Abstract

The present invention provides a double-table horizontal vibration table, comprising an exciter for horizontal vibration, an exciter mounting seat, an upper water platform surface, a lower water platform surface, a bearing plate, and a bracket, wherein the mounting surfaces of the upper water platform surface and the lower water platform surface are arranged back to back, the exciter connects the upper water platform surface and the lower water platform surface and drives the upper water platform surface and the lower water platform surface to perform synchronous horizontal vibration, the bearing plate is arranged between the upper water platform surface and the lower water platform surface, and the bearing plate is mounted on the bracket; the technical solution provided by the present invention increases a lower suspension fixing method for a test piece by adding a lower water platform surface to a conventional horizontal vibration table, the upper and lower water platforms can simultaneously install the test piece and vibrate, thereby improving the efficiency of the vibration test, and adopts a guide component and an oil circuit so that during vibration, the dynamic overturning moments of the upper and lower test pieces can offset each other, thereby avoiding the adverse effects of the overturning moment of a single table.

Description

Technical Field

[0001] The invention relates to the technical field of vibration test benches, and in particular to a double-table horizontal vibration bench. Background Art

[0002] Vibration test is used to simulate the various vibration environments encountered by products during transportation, installation and use, so as to evaluate the resistance of products in the expected transportation and use environment. It is widely used in simulation tests of various typical vibrations such as automotive parts, electronic components, and aerospace products.

[0003] Conventional horizontal table vibration tables have only one horizontal table surface, and the specimen mounting surface faces upward, which is only suitable for bottom-mounted specimens. For top-mounted specimens, the test table or its components need to be replaced, reducing the efficiency of the vibration test. Summary of the invention

[0004] The object of the present invention is to provide a double-table horizontal vibration table to solve the above problems.

[0005] The technical solution adopted by the present invention is:

[0006] A double-table horizontal vibration table, including an exciter for horizontal vibration and an exciter mounting seat, the exciter is arranged on the exciter mounting seat, and also includes an upper water platform surface, a lower water platform surface, a bearing plate, and a bracket, the mounting surfaces of the upper water platform surface and the lower water platform surface are arranged back to back, the exciter connects the upper water platform surface and the lower water platform surface and drives the upper water platform surface and the lower water platform surface to perform synchronous horizontal vibration, the bearing plate is arranged between the upper water platform surface and the lower water platform surface, and the bearing plate is mounted on the bracket.

[0007] As a further improved technical solution of the present invention, a plurality of guide components are arranged in the bearing plate, and the guide components include guide blocks and guide block mounting grooves for accommodating the guide blocks. The guide blocks are connected to the upper water platform surface and the lower water platform surface, and the guide blocks can move in the guide block mounting grooves.

[0008] As a further improved technical solution of the present invention, an oil supply hole is provided on the side of the bearing plate, a first oil outlet hole is provided on the top surface of the bearing plate, a first bearing oil film is formed between the upper water platform surface and the bearing plate, a second oil outlet hole is provided on the bottom surface of the bearing plate, and a second bearing oil film is formed between the lower water platform surface and the bearing plate.

[0009] As a further improved technical solution of the present invention, a third oil outlet hole is provided on the side wall of the guide block mounting groove, the oil supply hole is connected to the third oil outlet hole, and a guide oil film is formed between the guide block and the guide block mounting groove.

[0010] As a further improved technical solution of the present invention, an oil drain groove is provided on the bearing plate, and a first oil drain hole is provided in the oil drain groove.

[0011] As a further improved technical solution of the present invention, a transfer block is provided on the bearing plate, and the transfer block is used to fix the bearing plate on the support.

[0012] As a further improved technical solution of the present invention, an oil retaining frame is extended upward from the four sides of the water launching platform surface, and a second oil drain hole is arranged on the side wall of the oil retaining frame.

[0013] As a further improved technical solution of the present invention, an oil guide groove is arranged on the surface of the launching platform, the oil guide groove is arranged in the oil baffle frame, and the oil guide groove is connected with the second oil drain hole.

[0014] As a further improved technical solution of the present invention, the upper water table surface and the lower water table surface are connected to the moving coil of the exciter through a connector, and the connector includes a table top connecting plate for connecting the upper water table surface and the lower water table surface, and a moving coil connecting plate for connecting the moving coil of the exciter, and a main connecting plate is arranged between the table top connecting plate and the moving coil connecting plate.

[0015] As a further improved technical solution of the present invention, reinforcing ribs are provided between the table connecting plate and the moving coil connecting plate.

[0016] The beneficial effects of the present invention are:

[0017] By adding a lower water platform to the conventional horizontal vibration table, the specimen is provided with a lower suspension fixation method, and the upper and lower water platforms can be used to install the specimen and vibrate at the same time, thereby improving the efficiency of the vibration test. The use of guide components and oil circuits allows the dynamic overturning moments of the upper and lower specimens to offset each other during vibration, thus avoiding the adverse effects of the overturning moment of a single platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a double-table horizontal vibration table;

[0019] Figure 2 It is the internal schematic diagram of the carrier board;

[0020] Figure 3 is a schematic diagram of the upper portion of the load-bearing plate;

[0021] Figure 4 It is a schematic diagram of the oil circuit of the bearing plate;

[0022] Figure 5 It is a structural schematic diagram of the launching platform surface;

[0023] Figure 6 It is a schematic diagram of the connector structure.

[0024] Among them: 1-exciter, 2-exciter mounting seat, 3-upper water platform surface, 4-lower water platform surface, 401-guide block mounting hole, 5-bearing plate, 6-bracket, 7-guide block, 8-guide block mounting groove, 9-oil supply hole, 10-first oil outlet hole, 11-second oil outlet hole, 12-third oil outlet hole, 13-oil drain groove, 14-first oil drain hole, 15-adapter block, 16-oil baffle frame, 17-second oil drain hole, 18-oil guide groove, 19-connector, 1901-table connecting plate, 1902-upper water platform surface connecting hole, 1903-lower water platform surface connecting hole, 1904-moving coil connecting plate, 1905-moving coil connecting hole, 1906-main connecting plate, 1907-reinforcement rib. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0026] If the invention involves directions (e.g., up, down, left, right, front, back, outside, inside, etc.) when describing, it is necessary to define the directions involved, such as "In order to clearly express the positions and directions described in the invention, the end close to the operator is the proximal end, and the end away from the operator is the distal end." Or define it with the paper as a reference. Of course, if the positional relationship between the two is defined by mutual reference in the subsequent description, it does not need to be defined here.

[0027] like Figure 1 As shown, a double-table horizontal vibration table includes an exciter 1 for horizontal vibration, an exciter mounting seat 2, an upper water platform surface 3, a lower water platform surface 4, a bearing plate 5, and a bracket 6. The exciter 1 is arranged on the exciter mounting seat 2, and the mounting surfaces of the upper water platform surface 3 and the lower water platform surface 4 are arranged back to back. The exciter 1 connects the upper water platform surface 3 and the lower water platform surface 4 and drives the upper water platform surface 3 and the lower water platform surface 4 to perform synchronous horizontal vibration. The bearing plate 5 is arranged between the upper water platform surface 3 and the lower water platform surface 4 to improve the consistency of vibration and the strength of the table surface. The bearing plate 5 is mounted on the bracket 6. The test piece can be installed on the upper part of the upper water platform surface 3, suspended on the lower part of the lower water platform surface 4, or fixed on the upper water platform surface 3 and the lower water platform surface 4 at the same time.

[0028] like Figure 2 , Figure 3As shown, the bearing plate 5 is made of carbon steel and has good mechanical properties. Adapter blocks 15 are arranged on both sides of the bearing plate 5 , and the adapter blocks 15 are used to fix the bearing plate 5 on the bracket 6 .

[0029] A plurality of guide components are arranged in the bearing plate 5, and the guide components are distributed in a rectangular array. The guide components include a guide block 7 and a guide block mounting groove 8 for accommodating the guide block 7. The guide block mounting groove 8 is rectangular and passes through the top and bottom surfaces of the bearing plate 5. When the exciter 1 vibrates, the guide block 7 can move in the guide block mounting groove 8. Guide block mounting holes 401 are arranged on the upper water platform surface 3 and the lower water platform surface 4. The guide block 7 connects the upper water platform surface 3 and the lower water platform surface 4 to maintain the synchronization of the movement of the upper water platform surface 3 and the lower water platform surface 4.

[0030] As shown in FIG. 4 , an oil supply hole 9 is provided on the side of the bearing plate 5 , and an oil circuit is provided inside the bearing plate 5 , and the oil enters the bearing plate 5 from the oil supply hole 9 . In the present embodiment, oil supply holes 9 are provided on the four sides of the bearing plate 5 , and the oil supply holes 9 penetrate the side of the bearing plate 5 , and the oil circuits are crisscrossed inside the bearing plate 5 .

[0031] The top surface of the bearing plate 5 is provided with a first oil outlet hole 10, which is connected to the oil circuit. When the oil flows out from the first oil outlet hole 10, a first bearing oil film is formed between the upper water platform surface 3 and the bearing plate 5, so as to realize the horizontal displacement of the upper water platform surface 3; the bottom surface of the bearing plate 5 is provided with a second oil outlet hole 11, which is connected to the oil circuit. When the oil flows out from the second oil outlet hole 11, a second bearing oil film is formed between the lower water platform surface 4 and the bearing plate 5, so as to realize the horizontal displacement of the lower water platform surface 4. The top surface of the bearing plate 5 is higher than the surrounding of the bearing plate 5, and the bottom surface of the bearing plate 5 is lower than the surrounding of the bearing plate 5, so as to facilitate the smooth movement of the upper water platform surface 3 and the lower water platform surface 4, and prevent the friction between the table and the bearing plate 5 from generating resistance.

[0032] A third oil outlet hole 12 is provided on the side wall of the guide block mounting groove 8, and the third oil outlet hole 12 is connected to the oil circuit. When the oil flows from the oil supply hole 9 to the third oil outlet hole 12 and enters the guide block mounting groove 8, a guide oil film is formed between the guide block 7 and the guide block mounting groove 8, thereby realizing the displacement of the guide block 7 in the guide block mounting groove 8.

[0033] An oil drain groove 13 is provided on the bearing plate 5. The oil drain groove 13 is provided on the bearing plate 5 and close to the side wall of the bearing plate 5. The oil drain groove 13 is in the shape of a "mouth". A plurality of first oil drain holes 14 are provided in the oil drain groove 13. The first oil drain holes 14 drain the oil in the oil drain groove 13 to the lower side.

[0034] like Figure 5 As shown, the lower water platform surface 4 is made of magnesium alloy or aluminum alloy, and has low density, high strength and good shock absorption performance. An oil retaining frame 16 is formed by extending upward from the four sides of the lower water platform surface 4 to prevent oil from overflowing and causing pollution. A second oil drain hole 17 is arranged on the side wall of the oil retaining frame 16, and a plurality of oil guide grooves 18 are arranged on the lower water platform surface 4. The oil guide grooves 18 are arranged in the oil retaining frame 16, and the oil guide grooves 18 are staggered vertically and horizontally. The oil guide grooves 18 are connected with the second oil drain hole 17, and the oil flowing into the oil retaining frame 16 from the bearing plate 5 is collected by the oil guide grooves 18 and discharged from the second oil drain hole 17.

[0035] The upper water platform surface 3 and the lower water platform surface 4 are connected to the moving coil of the exciter 1 through the connector 19, and the vibration force of the moving coil of the exciter 1 is transmitted to the upper and lower water platform surfaces 4 through the connector 19. Figure 6 As shown, the connector 19 includes a table connecting plate 1901 for connecting the upper horizontal table surface 3 and the lower horizontal table surface 4, and a moving coil connecting plate 1904 for connecting the moving coil of the exciter 1. The table connecting plate 1901 is provided with a double row of table connecting holes, namely, upper horizontal table connecting holes 1902 for connecting the upper horizontal table surface 3 and lower horizontal table connecting holes 1903 for connecting the lower horizontal table surface 4. The moving coil connecting plate 1904 is provided with moving coil connecting holes 1905. A main connecting plate 1906 is provided between the table connecting plate 1901 and the moving coil connecting plate 1904. A plurality of reinforcing ribs 1907 are provided between the table connecting plate 1901 and the moving coil connecting plate 1904 to strengthen the connection and increase the strength.

[0036] By adding a lower water platform 4 to a conventional horizontal vibration table, the specimen is provided with a lower suspension fixing method, and the upper and lower water platforms 4 can be used to install the specimen and vibrate at the same time, thereby improving the efficiency of the vibration test. The use of guide components and oil circuits allows the dynamic overturning moments of the upper and lower specimens to offset each other during vibration, thereby avoiding the adverse effects of the overturning moment of a single platform.

[0037] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0038] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. All equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-table horizontal vibration table, comprising an exciter (1) for horizontal vibration and an exciter mounting seat (2), wherein the exciter (1) is arranged on the exciter mounting seat (2), and is characterized in that: It also includes an upper water platform surface (3), a lower water platform surface (4), a bearing plate (5), and a bracket (6), wherein the mounting surfaces of the upper water platform surface (3) and the lower water platform surface (4) are arranged in a back-to-back relationship, the exciter (1) is connected to the upper water platform surface (3) and the lower water platform surface (4) and drives the upper water platform surface (3) and the lower water platform surface (4) to perform synchronous horizontal vibration, the bearing plate (5) is arranged between the upper water platform surface (3) and the lower water platform surface (4), and the bearing plate (5) is mounted on The support (6) is provided with a plurality of guide assemblies in the bearing plate (5), the guide assemblies comprising guide blocks (7) and guide block mounting grooves (8) for accommodating the guide blocks (7), the guide blocks (7) connecting the upper water platform surface (3) and the lower water platform surface (4), and the guide blocks (7) can move in the guide block mounting grooves (8); the bearing plate (5) is provided with an adapter block (15), and the adapter block (15) is used to fix the bearing plate (5) on the support (6).

2. The double-table horizontal vibration table according to claim 1, characterized in that: The side surface of the bearing plate (5) is provided with an oil supply hole (9), the top surface of the bearing plate (5) is provided with a first oil outlet hole (10), a first bearing oil film is formed between the upper water platform surface (3) and the bearing plate (5), the bottom surface of the bearing plate (5) is provided with a second oil outlet hole (11), and a second bearing oil film is formed between the lower water platform surface (4) and the bearing plate (5).

3. The double-table horizontal vibration table according to claim 2, characterized in that: A third oil outlet hole (12) is provided on the side wall of the guide block mounting groove (8), the oil supply hole (9) is connected to the third oil outlet hole (12), and a guide oil film is formed between the guide block (7) and the guide block mounting groove (8).

4. The double-table horizontal vibration table according to claim 3, characterized in that: An oil drain groove (13) is provided on the bearing plate (5), and a first oil drain hole (14) is provided in the oil drain groove (13).

5. The double-table horizontal vibration table according to claim 4, characterized in that: An oil baffle frame (16) is formed by extending upward from the four sides of the water lowering platform surface (4), and a second oil drain hole (17) is provided on the side wall of the oil baffle frame (16).

6. The double-table horizontal vibration table according to claim 5, characterized in that: An oil guide groove (18) is provided on the water lowering platform surface (4), the oil guide groove (18) is arranged in the oil retaining frame (16), and the oil guide groove (18) is communicated with the second oil drain hole (17).

7. The double-table horizontal vibration table according to claim 1, characterized in that: The upper water table surface (3) and the lower water table surface (4) are connected to the moving coil of the exciter (1) via a connector (19); the connector (19) comprises a table surface connection plate (1901) for connecting the upper water table surface (3) and the lower water table surface (4), and a moving coil connection plate (1904) for connecting the moving coil of the exciter (1); a main connection plate (1906) is provided between the table surface connection plate (1901) and the moving coil connection plate (1904).

8. The double-table horizontal vibration table according to claim 7, characterized in that: A reinforcing rib (1907) is provided between the table connection plate (1901) and the moving coil connection plate (1904).

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