Universal expansion table

Abstract

The utility model relates to the field of vibration test tables, and discloses a universal expansion table, the bottom end of a cylinder is welded with a bottom mounting seat, the surface of the outer ring of the cylinder is welded with six groups of annularly distributed reinforcing ribs, the upper parts of the two side surfaces of each group of reinforcing ribs are respectively welded with a connecting plate I, and a connecting plate II is welded on the connecting plate I; a plurality of first connecting holes distributed at equal intervals are formed in the upper surface of the first connecting plate, a pattern placing plate is fixed above the barrel and the first connecting plates through the first connecting holes and screws, a bottom mounting seat is arranged at the lower end of the barrel, so that the expansion table is convenient to mount and dismount, reinforcing ribs are arranged on the outer side surface of the barrel, and the expansion table is convenient to mount and dismount. A reinforcing rib is arranged in the cylinder body, a first connecting plate is arranged on the reinforcing rib, a second connecting plate is further arranged in the cylinder body, the first connecting plate and the second connecting plate can be used for installing pattern placing plates of different sizes, when vibration tests are carried out on patterns of different sizes, only the pattern placing plates need to be replaced, overall replacement is not needed, and universality is improved.

Description

Technical Field

[0001] The utility model relates to the field of vibration test benches, in particular to a universal expansion bench. Background Art

[0002] During vibration testing, the specimen or fixture is often larger than the dynamic coil surface of the vibration table. In this case, an extension must be added to the original surface. A common method is to install an auxiliary extension surface on the dynamic coil to enlarge the original surface, thereby facilitating the installation and fixation of the specimen or fixture. The auxiliary extension table is usually integrated. When installing and fixing specimens or fixtures of different sizes, it is necessary to replace extension tables of different sizes. This results in a large number of extension tables and is more difficult to replace. In addition, increasing the size of the extension table also increases its mass, which will cause the extension table to consume most of the thrust, resulting in insufficient thrust and significantly reduced vibration load transmission efficiency. To this end, we designed a universal extension table. Utility Model Content

[0003] In order to solve the technical problem that the number of expansion tables of different sizes is large and the replacement is troublesome when replacing them, the utility model provides a universal expansion table.

[0004] The utility model is implemented by the following technical solutions: a universal expansion platform, including a cylinder, a bottom mounting seat welded to the bottom end of the cylinder, six groups of annularly distributed reinforcing ribs welded to the outer ring surface of the cylinder, a connecting plate 1 is welded above the two side surfaces of each group of the reinforcing ribs, a plurality of equally spaced connecting holes 1 are provided on the upper surface of the connecting plate 1, a pattern placement plate is fixed above the cylinder and the plurality of connecting plates 1 through the connecting holes 1 and screws, a plurality of evenly distributed fixing holes are provided on the upper surface of the pattern placement plate, the fixing holes are used to fix the specimen clamp, thereby facilitating the fixation of the specimen.

[0005] As a further improvement of the above solution, the bottom mounting seat is provided with a plurality of evenly distributed bottom mounting holes, and the outer diameter of the bottom mounting seat is larger than the outer diameter of the cylinder, so as to facilitate fixing the expansion platform on the vibration table and facilitating its installation and disassembly.

[0006] As a further improvement of the above-mentioned solution, the reinforcing rib includes an inclined portion welded to the outer surface of the cylinder, the upper end of the inclined portion is extended outward to form a horizontal portion, and the connecting plate is welded to the side of the horizontal portion. The design of the horizontal portion increases the size above the reinforcing rib, and the overall weight increase is limited, which will not reduce the vibration load transfer efficiency.

[0007] As a further improvement of the above solution, multiple groups of reinforcement blocks are arranged between the two side surfaces of the reinforcement rib and the lower end surface of the connecting plate 1. The reinforcement blocks are used to support the connecting plate 1, thereby improving its connection strength and making the pattern placement plate above the connecting plate 1 more stable and firm.

[0008] As a further improvement of the above solution, a connecting plate 2 is welded on the upper part of the cylinder, the upper surface of the connecting plate 2 is flush with the upper surface of the connecting plate 1 and the upper surface of the cylinder, and a plurality of connecting holes 2 are opened on the connecting plate 2, and the connecting hole 1 and the connecting hole 2 are used to connect and fix with the pattern placement plate.

[0009] As a further improvement to the above solution, the outer ring surface of the cylinder is provided with a plurality of equally spaced sound-absorbing and shock-absorbing holes. The design of the sound-absorbing and shock-absorbing holes reduces the overall weight of the expansion platform and provides it with good sound-absorbing effect, thereby reducing the noise generated during vibration.

[0010] The cylinder includes a middle cylinder, an outer cylinder is provided on the outer surface of the middle cylinder, and an inner cylinder is provided on the inner side of the middle cylinder, wherein the surface of the middle cylinder is provided with honeycomb holes, the outer cylinder and the inner cylinder are both formed by winding metal sheets, and the middle cylinder is wound again after a honeycomb structure is punched out on its surface. The honeycomb structure reduces its weight and increases its strength, thereby increasing the vibration load transfer efficiency and having a good sound absorption effect.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model provides a bottom mounting seat at the lower end of the cylinder to facilitate the installation and disassembly of the expansion platform. The outer surface of the cylinder is provided with reinforcing ribs, and a connecting plate 1 is provided on the reinforcing ribs. A connecting plate 2 is also provided inside the cylinder. The connecting plates 1 and 2 can be used to install pattern placement plates of various sizes. When performing vibration tests on patterns of different sizes, only the pattern placement plate needs to be replaced, without replacing the entire pattern, thereby improving versatility.

[0013] 2. The cylinder is divided into three parts: the middle cylinder, the outer cylinder and the inner cylinder. The surface of the middle cylinder is provided with honeycomb holes. The honeycomb structure reduces its weight and increases its strength. The sound-absorbing and shock-absorbing holes and the horizontal part increase the vibration load transmission efficiency and have a good sound absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a universal expansion platform provided by the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the structure without the pattern placement plate installed;

[0016] Figure 3 for Figure 1 Bottom diagram of ;

[0017] Figure 4 for Figure 1 Schematic diagram of the structure of the middle cylinder.

[0018] Description of main symbols:

[0019] 1. Cylinder; 11. Middle cylinder; 12. Outer cylinder; 13. Inner cylinder; 2. Bottom mounting seat; 21. Bottom mounting hole; 3. Reinforcement rib; 31. Oblique portion; 32. Horizontal portion; 33. Reinforcement block; 4. Pattern placement plate; 41. Fixing hole; 5. Connecting plate 1; 51. Connecting hole 1; 6. Connecting plate 2; 7. Sound-absorbing and vibration-reducing hole. DETAILED DESCRIPTION

[0020] Below, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] Example:

[0022] Please combine Figure 1-Figure 4 A universal expansion platform of this embodiment includes a cylinder 1, a bottom mounting seat 2 is welded to the bottom end of the cylinder 1, six groups of annularly distributed reinforcing ribs 3 are welded to the outer ring surface of the cylinder 1, and a connecting plate 5 is welded above the two side surfaces of each group of reinforcing ribs 3. The upper surface of the connecting plate 5 is provided with a plurality of equally spaced connecting holes 51. A pattern placement plate 4 is fixed above the cylinder 1 and the plurality of connecting plates 5 through the connecting holes 51 and screws. The upper end surface of the pattern placement plate 4 is provided with a plurality of evenly distributed fixing holes 4. The fixing holes 4 are used to fix the specimen fixture, thereby facilitating the fixation of the specimen.

[0023] The bottom mounting seat 2 is provided with a plurality of evenly distributed bottom mounting holes 21 , and the outer diameter of the bottom mounting seat 2 is larger than the outer diameter of the cylinder 1 , so as to facilitate fixing the expansion platform on the vibration table and facilitating its installation and disassembly.

[0024] The reinforcing rib 3 includes an inclined portion 31 welded to the outer surface of the cylinder 1. The upper end of the inclined portion 31 is extended outward to form a horizontal portion 32. The connecting plate 5 is welded to the side of the horizontal portion 32. The design of the horizontal portion 32 increases the size above the reinforcing rib 3, and its overall weight increase is limited, which will not reduce the vibration load transmission efficiency.

[0025] A plurality of reinforcing blocks 33 are provided between the two side surfaces of the reinforcing rib 3 and the lower end surface of the connecting plate 5. The reinforcing blocks 33 are used to support the connecting plate 5, thereby improving its connection strength and making the pattern placement plate 4 above the connecting plate 5 more stable and firm.

[0026] A connecting plate 2 6 is welded to the upper part of the cylinder 1. The upper surface of the connecting plate 2 6 is flush with the upper surface of the connecting plate 1 5 and the upper surface of the cylinder 1, and a plurality of connecting holes 2 are opened on the connecting plate 2 6. The connecting hole 1 51 and the connecting hole 2 are used to connect and fix with the pattern placement plate 4.

[0027] The outer surface of the cylinder 1 is provided with a plurality of equally spaced sound-absorbing and shock-absorbing holes 7. The design of the sound-absorbing and shock-absorbing holes 7 reduces the overall weight of the expansion platform and provides it with good sound-absorbing effect, thereby reducing the noise generated during vibration.

[0028] The cylinder 1 includes a middle cylinder 11, an outer cylinder 12 is provided on the outer surface of the middle cylinder 11, and an inner cylinder 13 is provided on the inner side of the middle cylinder 11, wherein the surface of the middle cylinder 11 is provided with honeycomb holes. The outer cylinder 12 and the inner cylinder 13 are both formed by winding metal sheets. The middle cylinder 11 is wound again after a honeycomb structure is punched out on its surface. The honeycomb structure reduces its weight and increases its strength, thereby increasing the vibration load transfer efficiency and having a good sound absorption effect.

[0029] The implementation principle of a universal expansion table in the embodiment of the present application is as follows: in actual use, the expansion table is fixed on the vibration table through the bottom mounting base 2 and the bottom mounting hole 21 above it, and then the test fixture can be fixed on the sample placement plate 4 above the cylinder 1, and the sample can be fixed by the test fixture;

[0030] The device is provided with a bottom mounting seat 2 at the lower end of the cylinder 1, which facilitates the installation and removal of the expansion platform. The outer surface of the cylinder 1 is provided with a reinforcing rib 3, and a connecting plate 1 5 is provided on the reinforcing rib 3. A connecting plate 2 6 is also provided inside the cylinder 1. The connecting plate 1 5 and the connecting plate 2 6 can be installed on a variety of sample placement plates 4 of different sizes. When performing vibration tests on samples of different sizes, only the sample placement plate 4 needs to be replaced, without replacing the entire sample, thereby improving versatility.

[0031] By dividing the cylinder 1 into three parts: a middle cylinder 11, an outer cylinder 12, and an inner cylinder 13, wherein the surface of the middle cylinder 11 is provided with honeycomb holes, the honeycomb structure reduces its weight and increases its strength. Combined with the sound-absorbing and shock-absorbing holes 7 and the horizontal part 32, the vibration transfer load efficiency is increased and a good sound absorption effect is achieved.

[0032] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.

Claims

1. A universal expansion platform, comprising a cylinder (1), characterized in that: A bottom mounting seat (2) is welded to the bottom end of the cylinder (1), and six groups of annularly distributed reinforcing ribs (3) are welded to the outer ring surface of the cylinder (1). A connecting plate (5) is welded above the two side surfaces of each group of reinforcing ribs (3), and a plurality of evenly spaced connecting holes (51) are provided on the upper surface of the connecting plate (5). A pattern placement plate (4) is fixed above the cylinder (1) and the plurality of connecting plates (5) through the connecting holes (51) and screws, and a plurality of evenly distributed fixing holes (41) are provided on the upper end surface of the pattern placement plate (4).

2. A universal expansion platform as claimed in claim 1, characterized in that: The bottom mounting seat (2) is provided with a plurality of evenly distributed bottom mounting holes (21), and the outer diameter of the bottom mounting seat (2) is greater than the outer diameter of the cylinder (1).

3. The universal expansion platform according to claim 1, wherein: The reinforcing rib (3) includes an inclined portion (31) welded to the outer surface of the cylinder (1), the upper end of the inclined portion (31) is extended outward to form a horizontal portion (32), and the connecting plate (5) is welded to the side of the horizontal portion (32).

4. A universal expansion platform as claimed in claim 3, characterized in that: A plurality of groups of reinforcing blocks (33) are provided between the two side surfaces of the reinforcing rib (3) and the lower end surface of the connecting plate (5).

5. The universal expansion platform according to claim 1, wherein: A second connecting plate (6) is welded on the upper part of the cylinder (1), the upper surface of the second connecting plate (6) is flush with the upper surface of the first connecting plate (5) and the upper surface of the cylinder (1), and a plurality of second connecting holes are provided on the second connecting plate (6).

6. The universal expansion platform according to claim 1, wherein: The outer ring surface of the cylinder (1) is provided with a plurality of sound-absorbing and vibration-damping holes (7) distributed at equal intervals; The cylinder (1) comprises a middle cylinder (11), the outer surface of the middle cylinder (11) is provided with an outer cylinder (12), and the inner side of the middle cylinder (11) is provided with an inner cylinder (13), wherein the surface of the middle cylinder (11) is provided with honeycomb holes.

Images