Sealing vibration test device

Abstract

The utility model provides a sealed vibration test device, the sealed vibration test device comprises a sealed box body, a vibration test stand, and a vibration sealing member connecting the vibration test stand and the sealed box body, the vibration test stand comprises a vibration stand body and a moving coil used for outputting vibration, the sealed box body comprises a side wall, and the side wall is provided with an opening. A connecting through hole is formed in the side wall, the vibration sealing piece comprises a first fixing ring fixed to the moving ring, a second fixing ring surrounding the first fixing ring in the horizontal direction and an elastic sealing ring film connecting the first fixing ring and the second fixing ring, and the elastic sealing ring film is made of a flexible material. And the first fixing ring and the second fixing ring are arranged at an interval. According to the sealing vibration test device, the first fixing ring, the second fixing ring and the elastic sealing ring film are arranged, so that the sealing effect is achieved, and vibration can be prevented from being transmitted to the sealing box body from the vibration test bench.

Description

Technical Field

[0001] The utility model relates to a sealing vibration testing device. Background Art

[0002] Vibration test is a common test method, but sometimes because of the need to simulate actual working conditions, it is necessary to provide a sealed box to create a low-pressure or high-pressure environment in the sealed box so that the vibration test can be carried out in a high-pressure or low-pressure environment.

[0003] The existing vibration test device transmits vibration to the work surface through the connecting parts to drive the test piece on the work surface to vibrate, but at the same time, the vibration will also be transmitted to the sealed box, the box body and the equipment, components and pipelines inside it. There is a possibility of damage in the vibration environment, such as weld cracking, component failure, etc., which ultimately affects the life and accuracy of the vibration test device.

[0004] In view of this, it is necessary to improve the existing sealing vibration test device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a sealed vibration test device to solve the problem that the existing vibration test device easily transmits the vibration of the vibration table to the sealed box.

[0006] To achieve the above-mentioned purpose, the sealing vibration test device of the utility model includes a sealing box, a vibration test table, and a vibration seal connecting the vibration test table and the sealing box, the vibration test table includes a vibration table body and a dynamic coil for outputting vibration, the sealing box includes a side wall, the side wall is provided with a connecting through hole, the vibration seal includes a first fixed ring fixed to the dynamic coil, a second fixed ring surrounding the first fixed ring in the horizontal direction, and an elastic sealing ring membrane connecting the first fixed ring and the second fixed ring, the elastic sealing ring membrane is made of flexible material, and the first fixed ring and the second fixed ring are arranged at an interval.

[0007] As a further improvement of the present invention, the first fixed ring includes a first ring body fixed in the horizontal direction close to the sealing box body and a first limiting ring close to the moving coil, the second fixed ring includes a second ring body fixed in the horizontal direction close to the sealing box body and a second limiting ring close to the moving coil, and the inner and outer sides of the elastic sealing ring membrane are respectively clamped between the first ring body and the first limiting ring and between the second ring body and the second limiting ring.

[0008] As a further improvement of the utility model, the thickness of the elastic sealing ring membrane in the radial direction inside and outside is greater than the thickness in the middle part, a first limiting groove for clamping the elastic sealing ring membrane is formed between the first ring body and the first limiting ring, and a second limiting groove for clamping the elastic sealing ring membrane is formed between the second ring body and the second limiting ring, the thickness of the first limiting groove close to the second fixing ring is less than the thickness away from the second fixing ring, and the thickness of the second limiting groove close to the first fixing ring is less than the thickness away from the first fixing ring.

[0009] As a further improvement of the present invention, the first limiting ring is fixedly connected to a side of the first ring body close to the second fixed ring, the side of the first ring body away from the second fixed ring is fixedly connected to the side wall, the second limiting ring is fixedly connected to a side of the second ring body close to the first fixed ring, and the side of the second ring body away from the first fixed ring is fixedly connected to the moving ring.

[0010] As a further improvement of the present invention, the vibration seal also includes a first sealing ring abutting between the moving ring and the first ring body.

[0011] As a further improvement of the present invention, the vibration seal also includes a second sealing ring abutting between the side wall and the second ring body.

[0012] As a further improvement of the utility model, the sealing vibration test device also includes a test piece installation table arranged in the sealing box, and a connecting piece connecting the test piece installation table and the moving coil.

[0013] As a further improvement of the present invention, the sealing vibration test device further comprises a support platform protruding into the sealing box body for supporting the specimen mounting table, and the specimen mounting table is slidably arranged relative to the support platform.

[0014] As a further improvement of the present invention, the sealing vibration test device also includes a fixed base, and the vibration test table is fixed on the fixed base.

[0015] The beneficial effect of the utility model is that the sealing vibration test device of the utility model, by providing the first fixing ring, the second fixing ring and the elastic sealing ring membrane, can not only achieve the sealing effect, but also prevent the vibration from being transmitted from the vibration test bench to the sealing box body, thereby avoiding shortening the life of the sealing vibration test device and not easily affecting the accuracy of the vibration test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the sealing vibration test device of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the sealing vibration test device of the utility model without the sealing box;

[0018] Figure 3 yes Figure 2 A schematic diagram of a top view structure;

[0019] Figure 4 yes Figure 2 A side view structural schematic diagram of;

[0020] Figure 5 It is a structural schematic diagram of a vibration seal of the sealing vibration test device of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the vibration seal of the sealing vibration test device of the utility model from another angle;

[0022] Figure 7 It is a cross-sectional schematic diagram of a vibration seal of the sealing vibration test device of the utility model;

[0023] Figure 8 yes Figure 7 Schematic diagram of the enlarged structure of area A in the middle. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figures 1 to 6 As shown, the sealing vibration test device 100 of the utility model includes a sealing box 1, a vibration test table 4, a vibration seal 6 connecting the vibration test table 4 and the sealing box 1, a specimen mounting table 3 arranged in the sealing box 1, a connecting piece 5 connecting the specimen mounting table 3 and the vibration test table 4, a support platform 2 protruding into the sealing box 1 for supporting the specimen mounting table 3, and a fixed base 7.

[0028] The vibration test table 4 and the support table 2 are fixed on the fixed base 7 .

[0029] The vibration test table 4 includes a vibration table body 42 and a moving coil 41 for outputting vibration. The connecting member 5 connects the moving coil 41 and the test piece installation table 3.

[0030] The sealed box body 1 comprises a side wall 11 and a bottom wall 12. The support platform 2 protrudes from the bottom wall 12 of the sealed box body 1 and extends into the sealed box body 1. The specimen mounting table 3 is slidably arranged relative to the support platform 2.

[0031] The side wall 11 is provided with a connecting through hole 13 for the connecting member 5 to pass through.

[0032] The support platform 2 includes a support platform body 21 , a horizontal slide 22 disposed on the support platform body 21 , and a guide support member 23 . The guide support member 23 is fixedly connected to the specimen mounting table 3 and is slidably disposed relative to the horizontal slide 22 .

[0033] The vibration seal 6 includes a first fixed ring 61 fixed to the moving ring 41 , a second fixed ring 62 surrounding the first fixed ring 61 in the horizontal direction, an elastic sealing ring film 63 connecting the first fixed ring 61 and the second fixed ring 62 , a first sealing ring 64 , and a second sealing ring 65 .

[0034] The elastic sealing ring membrane 63 is made of flexible material, and the first fixing ring 61 and the second fixing ring 62 are arranged at an interval.

[0035] The elastic sealing ring membrane 63 can play a sealing role on the one hand, and can prevent the vibration of the moving coil 41 from being transmitted to the sealing box 1 on the other hand.

[0036] In this embodiment, the moving coil 41 and the connecting through hole 13 are circular, and the vibration seal 6 is annular. Correspondingly, the first fixed ring 61, the second fixed ring 62 and the elastic sealing ring membrane 63 are all annular.

[0037] The first fixed ring 61 includes a first ring body 611 fixed in a horizontal direction and close to the sealing box body 1 and a first limiting ring 612 close to the moving coil 41 .

[0038] The second fixing ring 62 includes a second ring body 621 fixed in the horizontal direction and close to the sealing box body 1 and a second limiting ring 622 close to the moving coil 41 .

[0039] The inner and outer sides of the elastic sealing ring membrane 63 are respectively clamped between the first ring body 611 and the first limiting ring 612 and between the second ring body 621 and the second limiting ring 622 .

[0040] The thickness of the elastic sealing ring membrane 63 along the radial direction inside and outside is greater than the thickness in the middle part. A first limiting groove 613 for clamping the elastic sealing ring membrane 63 is formed between the first circle body 611 and the first limiting ring 612. A second limiting groove 623 for clamping the elastic sealing ring membrane 63 is formed between the second circle body 621 and the second limiting ring 622. The thickness of the first limiting groove 613 close to the second fixed ring 62 is less than the thickness away from the second fixed ring 62. The thickness of the second limiting groove 623 close to the first fixed ring 61 is less than the thickness away from the first fixed ring 61.

[0041] The first limiting ring 612 is fixedly connected to the side of the first ring body 611 close to the second fixed ring 62, the side of the first ring body 611 away from the second fixed ring 62 is fixedly connected to the side wall 11, the second limiting ring 622 is fixedly connected to the side of the second ring body 621 close to the first fixed ring 61, and the side of the second ring body 621 away from the first fixed ring 61 is fixedly connected to the moving coil 41.

[0042] The first limiting groove 613 and the second limiting groove 623 can have a falling-off effect, that is, after the first limiting ring 612 is fixedly connected to the first ring body 611, the elastic sealing ring membrane 63 will not fall off from the first limiting groove 613, and after the second limiting ring 622 is fixedly connected to the second ring body 621, the elastic sealing ring membrane 63 will not fall off from the second limiting groove 623.

[0043] In addition, in this embodiment, the first limiting ring 612 is detachably connected to the first ring body 611 by screws, and the second limiting ring 622 is detachably connected to the second ring body 621 by screws, so that the elastic sealing ring membrane 63 can be disassembled and replaced after it is damaged.

[0044] The first sealing ring 64 is held between the moving ring 41 and the first ring body 611 .

[0045] The second sealing ring 65 is held between the side wall 11 and the second ring body 621 .

[0046] The first ring body 611 and the second ring body 621 are connected to the moving coil 41 and the side wall 11 respectively through screws, and the first sealing ring 64 and the second sealing ring 65 can prevent the sealed box body 1 from communicating with the outside.

[0047] The sealing vibration test device 100 of the present invention, by providing the first fixing ring 61, the second fixing ring 62 and the elastic sealing ring membrane 63, can not only achieve a sealing effect, but also prevent the vibration from being transmitted from the vibration test table 4 to the sealing box 1, thereby avoiding shortening the service life of the sealing vibration test device 100 and not easily affecting the accuracy of the vibration test results.

[0048] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A sealing vibration test device, characterized in that: The sealing vibration test device includes a sealing box, a vibration test table, and a vibration seal connecting the vibration test table and the sealing box. The vibration test table includes a vibration table body and a dynamic coil for outputting vibration. The sealing box includes a side wall, and a connecting through hole is opened on the side wall. The vibration seal includes a first fixed ring fixed to the dynamic coil, a second fixed ring surrounding the first fixed ring in the horizontal direction, and an elastic sealing ring membrane connecting the first fixed ring and the second fixed ring. The elastic sealing ring membrane is made of flexible material, and the first fixed ring and the second fixed ring are arranged at an interval.

2. The seal vibration test device according to claim 1, characterized in that: The first fixed ring includes a first ring body fixed in a horizontal direction close to the sealing box body and a first limiting ring close to the moving coil, the second fixed ring includes a second ring body fixed in a horizontal direction close to the sealing box body and a second limiting ring close to the moving coil, and the inner and outer sides of the elastic sealing ring membrane are respectively clamped between the first ring body and the first limiting ring and between the second ring body and the second limiting ring.

3. The sealing vibration test device according to claim 2, characterized in that: The thickness of the elastic sealing ring membrane in the radial direction inside and outside is greater than the thickness in the middle part, a first limiting groove for clamping the elastic sealing ring membrane is formed between the first ring body and the first limiting ring, a second limiting groove for clamping the elastic sealing ring membrane is formed between the second ring body and the second limiting ring, the thickness of the first limiting groove close to the second fixing ring is less than the thickness away from the second fixing ring, and the thickness of the second limiting groove close to the first fixing ring is less than the thickness away from the first fixing ring.

4. The seal vibration test device according to claim 3, characterized in that: The first limiting ring is fixedly connected to a side of the first ring body close to the second fixed ring, the side of the first ring body away from the second fixed ring is fixedly connected to the side wall, the second limiting ring is fixedly connected to a side of the second ring body close to the first fixed ring, and the side of the second ring body away from the first fixed ring is fixedly connected to the moving ring.

5. The seal vibration test device according to claim 4, characterized in that: The vibration seal also includes a first sealing ring abutting between the moving ring and the first ring body.

6. The seal vibration test device according to claim 4, characterized in that: The vibration seal also includes a second sealing ring abutting between the side wall and the second ring body.

7. The seal vibration test device according to claim 1, characterized in that: The sealing vibration test device also includes a test piece installation table arranged in the sealing box, and a connecting piece connecting the test piece installation table and the moving coil.

8. The seal vibration test device according to claim 7, characterized in that: The sealing vibration test device also includes a support platform protruding into the sealing box body to support the test piece installation table, and the test piece installation table is slidably arranged relative to the support platform.

9. The seal vibration test device according to claim 8, characterized in that: The sealing vibration test device also includes a fixed base, and the vibration test table is fixed on the fixed base.

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