Independent control mechanism for bearing air bag of expansion table

Abstract

The utility model discloses an expansion table bearing air bag independent control mechanism which comprises a bottom plate and a fixing plate arranged at the upper end of the bottom plate, a bearing table containing position is formed in the middle of the end face of the fixing plate, and a plurality of first fixing frames, second fixing frames, third fixing frames and fourth fixing frames are symmetrically arranged on the outer edge of the bearing table containing position in the circumferential direction at equal intervals. A first air bag, a second air bag and a guide supporting mechanism are arranged on the base, and a bearing table is placed at the upper end of the first air bag and the upper end of the guide supporting mechanism. The beneficial effects of the utility model are that a plurality of groups of air bags with different sizes are arranged, and branch valves are additionally arranged in the branch air paths to form series connection (not shown in the figure), thereby ensuring the stability of the bearing platform and the vibration frequency of each angle of the bearing platform during vibration test, and ensuring the accuracy of the test result.

Description

Technical Field

[0001] This utility model relates to the technical field of vibration testing equipment for large equipment, specifically to an independent control mechanism for an extended platform bearing airbag. Background Technology

[0002] Vibration is ubiquitous in our lives. Vibration problems affect product quality and cause product failures during service. Therefore, research on vibration has received increasing attention. Vibration test benches can provide a vibration simulation environment to conduct performance studies on products under vibration conditions. Vibration test benches can be used to complete reliability and characteristic tests of various products and components in environments such as flight vibration environment, road driving and transportation vibration environment.

[0003] In existing vibration testing mechanisms for large equipment, the airbags are all the same size and are supplied with air through branch air passages. The branch air passages connecting the airbags are prone to blockage and damage. In addition, they affect the overall air pressure, which in turn affects the accuracy of the test results and the product yield. Utility Model Content

[0004] The purpose of this invention is to provide an independent control mechanism for the airbag supported by the extension platform, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an independent control mechanism for an extended platform carrying airbag, comprising a base plate and a fixing plate disposed on its upper end. A carrying platform placement position is provided in the middle of the end face of the fixing plate. Multiple first fixing frames, second fixing frames, third fixing frames, and fourth fixing frames are symmetrically arranged at equal intervals along the outer edge of the circumference of the carrying platform placement position. A first airbag, a second airbag, and a guide support mechanism are respectively disposed on the first airbag and the guide support mechanism. A carrying platform is placed on the upper end of the first airbag and the guide support mechanism. A third airbag is disposed on the upper end of the third fixing frame. A second receiving plate is symmetrically arranged on the end face of the third airbag.

[0006] In a further optimized configuration, the first, second, third, and fourth fixing frames are all fixedly connected to the fixing plate on both sides by multiple fixing bolts.

[0007] In a further optimized manner, a plurality of first reinforcing ribs and second reinforcing ribs are provided between the base plate and the fixing plate.

[0008] In a further optimized configuration, the lower part of the support platform has a conical structure and is placed within the support platform placement position, which is a circular hole.

[0009] In a further optimized configuration, the support mechanism includes a connecting flange disposed on the end face of the second fixed frame.

[0010] In a further optimized configuration, the connecting flange end face is provided with a bearing seat connected thereto, and a guide rod is fixedly provided in the middle of the bearing seat.

[0011] In a further optimization, the end face of the first airbag near the support platform is provided with a connecting plate, and the connecting plate is fixedly connected to the first airbag by multiple fixing bolts. The first airbag is disposed in the middle, and the end face of the connecting plate is provided with a support platform.

[0012] In a further optimization, the end face of the second airbag near the support platform is provided with a receiving structure, which consists of a support frame and multiple first receiving plates.

[0013] Beneficial effects:

[0014] The extended platform bearing airbag independent control mechanism provided by this utility model is equipped with multiple sets of airbags of different sizes, and branch valves are added in the branch air circuit to form a series connection (not shown in the attached figure), which ensures the stability of the bearing platform during vibration testing, ensures the vibration frequency of the bearing platform at various angles, and ensures the accuracy of the test results. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure for removing the support platform according to this utility model.

[0017] Figure label:

[0018] 1-Base plate, 2-Fixing plate, 3-Second reinforcing rib, 4-First reinforcing rib, 5-Bearing platform placement position, 6-Second fixing frame, 7-Guide support mechanism, 8-First fixing frame, 9-First airbag, 10-Third fixing frame, 11-Bearing platform, 12-Second receiving plate, 13-Fourth fixing frame, 14-Receiving structure, 15-Supporting platform, 16-Second airbag, 17-Third airbag. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments. Example

[0020] like Figure 1-2As shown, an independent control mechanism for an extended platform carrying airbag includes a base plate 1 and a fixing plate 2 disposed on its upper end. A carrying platform placement position 5 is provided in the middle of the end face of the fixing plate 2. Multiple first fixing frames 8, second fixing frames 6, third fixing frames 10 and fourth fixing frames 13 are symmetrically arranged at equal intervals along the outer edge of the carrying platform placement position 5 in the circumferential direction. A first airbag 9, a second airbag 16 and a guide support mechanism 7 are respectively disposed on the first airbag 9 and the guide support mechanism 7. A carrying platform 11 is placed on the upper end of the first airbag 9 and the guide support mechanism 7. A third airbag 17 is disposed on the upper end of the third fixing frame 10. A second receiving plate 12 is symmetrically arranged on the end face of the third airbag 17.

[0021] In this embodiment, the first fixing frame 8, the second fixing frame 6, the third fixing frame 10 and the fourth fixing frame 13 are fixedly connected to the fixing plate 2 on both sides by multiple fixing bolts, and are respectively fixed on the fixing plate 2 by setting multiple fixing frames.

[0022] Multiple first reinforcing ribs 4 and second reinforcing ribs 3 are provided between the base plate 1 and the fixed plate 2. The reinforcing ribs are set to ensure the stability between the base plate and the fixed plate. Since the bearing platform tests the product through high-frequency vibration, if the reinforcing ribs are not installed, the base plate and the fixed plate are easily damaged during long-term vibration testing, and the service life of the mechanism will be greatly shortened.

[0023] The lower part of the support platform 11 has a conical structure and is placed and installed in the support platform placement position 5. The support platform placement position 5 is set in the shape of a round hole, which is used to fix the support platform and ensure the stability of the vibration test.

[0024] The support mechanism 7 includes a connecting flange disposed on the end face of the second fixed frame 6. The end face of the connecting flange is provided with a bearing seat connected thereto, and a guide rod is fixedly disposed in the middle of the bearing seat. The guide rod is used to ensure the accurate position of the bearing platform and to ensure that the position of the bearing platform does not shift during vibration testing.

[0025] The first airbag 9 has a connecting plate on its end face near the support platform 11, and the connecting plate is fixedly connected to the first airbag 9 by multiple fixing bolts. The first airbag 9 is located in the middle, and the end face of the connecting plate has a support platform 15. The second airbag 16 has a receiving structure 14 on its end face near the support platform 11. The receiving structure 14 is composed of a support frame and multiple first receiving plates.

[0026] This extended platform is used in conjunction with a vibration table to test products weighing tens or even hundreds of tons, thereby increasing the load-bearing capacity. The extended platform achieves pressure balance by setting multiple pneumatic springs (air bladders) at the lower end. By setting multiple sets of air bladders of different sizes and adding branch valves in the branch air circuit to form a series connection (not shown in the attached diagram), the stability of the bearing platform during vibration testing is ensured, and the vibration frequency of the bearing platform at various angles is guaranteed, thus ensuring the accuracy of the test results.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An independent control mechanism for an extended platform-supported airbag, characterized in that: It includes a base plate (1) and a fixing plate (2) set on its upper end. The fixing plate (2) has a bearing platform placement position (5) in the middle of its end face. The bearing platform placement position (5) is symmetrically provided with multiple first fixing frames (8), second fixing frames (6), third fixing frames (10) and fourth fixing frames (13) at equal intervals along the outer edge of the circumference. A first airbag (9), a second airbag (16) and a guide support mechanism (7) are respectively provided on it. A bearing platform (11) is placed on the upper end of the first airbag (9) and the guide support mechanism (7). A third airbag (17) is provided on the upper end of the third fixing frame (10). A second receiving plate (12) is symmetrically arranged on the end face of the third airbag (17).

2. The independent control mechanism for the extended platform bearing airbag according to claim 1, characterized in that: The first fixing frame (8), the second fixing frame (6), the third fixing frame (10) and the fourth fixing frame (13) are fixedly connected to the fixing plate (2) on both sides by multiple fixing bolts.

3. The independent control mechanism for the extended platform bearing airbag according to claim 1, characterized in that: A plurality of first reinforcing ribs (4) and second reinforcing ribs (3) are provided between the base plate (1) and the fixing plate (2).

4. The independent control mechanism for the extension platform bearing airbag according to claim 1, characterized in that: The lower part of the support platform (11) has a conical structure and is placed in the support platform placement position (5), which is a circular hole.

5. The independent control mechanism for the extended platform bearing airbag according to claim 1, characterized in that: The support mechanism (7) includes a connecting flange disposed on the end face of the second fixing frame (6).

6. The independent control mechanism for the extension platform bearing airbag according to claim 5, characterized in that: The connecting flange end face is provided with a bearing seat connected thereto, and a guide rod is fixedly provided in the middle of the bearing seat.

7. The independent control mechanism for the extended platform bearing airbag according to claim 1, characterized in that: The first airbag (9) has a connecting plate on its end face near the support platform (11), and the connecting plate is fixedly connected to the first airbag (9) by a plurality of fixing bolts. The first airbag (9) is located in the middle, and the end face of the connecting plate has a support platform (15).

8. The independent control mechanism for the extended platform bearing airbag according to claim 1, characterized in that: The second airbag (16) has a receiving structure (14) on its end face near the support platform (11). The receiving structure (14) is composed of a support frame and multiple first receiving plates.

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