CN212758656U - Multi-comprehensive test box - Google Patents

Abstract

The utility model relates to a many combined test case, include the shaking table and set up the low pressure box on the shaking table, the low pressure box be fixed in on the cylinder body of shaking table, the movable coil of shaking table on install vibration platform, vibration platform stretch into to the low pressure box in low pressure box and the cylinder body between pass through the bellows and be connected, the one end of bellows be fixed in on the low pressure box, the other end of bellows be fixed in on the cylinder body, movable coil drive vibration platform at the inside removal of bellows. After the structure is adopted, in the test process, the transmission of the vibration generated by the vibration table to the low-pressure box body can be weakened through the use of the corrugated pipe, meanwhile, the installation precision between the vibration table and the low-pressure box body does not need to be considered, small deviation can be accommodated, and the installation efficiency is improved; meanwhile, the sealing device has a good sealing effect and improves the test precision.

Description

Multi-comprehensive test box

Technical Field

The utility model belongs to the technical field of the combined test case technique and specifically relates to a many combined test casees are related to.

Background

The comprehensive test box is a device for providing environments such as temperature, humidity, air pressure, salt fog and the like for test piece tests, and generally needs to be matched with mechanical equipment such as a vibration table or an impact table to provide a comprehensive test environment. The comprehensive test chamber is used for controlling the provided environmental factors to reach the required indexes, and generally needs better sealing, and as a low-pressure chamber, the comprehensive test chamber needs to have very good sealing property to ensure the establishment of low pressure in the test chamber.

The existing low-pressure and vibration combined test box realizes low air pressure through a vacuum pump system, the limit pressure of the test box is close to vacuum, and therefore high sealing performance is needed, the shock absorption at the bottom of a vibration table is difficult to control, so that certain deviation exists in the distance between the vibration table and a low-pressure box body, the vibration table is relatively heavy in weight and generally non-mobile equipment, and the equipment can have certain deviation after falling as required, so that the deviation of the relative position between the vibration table and the low-pressure box body can exist, the vibration table and the low-pressure box body are generally fixedly connected through a hard connecting structure at present, so that the hard connection can be damaged after the deviation of the position is caused, the sealing effect is reduced, and the installation precision in the installation process is high; meanwhile, the vibration of the vibration table can cause damage to the hard connection in the test.

Disclosure of Invention

The utility model aims to solve the technical problem that a many combined test case is provided, can reduce the installation accuracy and can not cause the damage in the course of the work in the installation yet.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a many combined test case, includes the shaking table and sets up the low pressure box on the shaking table, the low pressure box be fixed in on the cylinder body of shaking table, the movable coil of shaking table on install vibration platform, vibration platform stretch into to the low pressure box in, its characterized in that low pressure box and cylinder body between be connected through the bellows, the one end of bellows be fixed in on the low pressure box, the other end of bellows be fixed in on the cylinder body, movable coil drive vibration platform at the inside removal of bellows.

More specifically, an upper flange is arranged at the top of the corrugated pipe, a lower flange is arranged at the bottom of the corrugated pipe, the upper flange is fixed on the low-pressure tank body, and the lower flange is fixed on the cylinder body; and sealing rings are arranged between the upper flange and the low-pressure box body and between the lower flange and the cylinder body.

More specifically, a heat-preservation anti-condensation layer is arranged on the outer side of the corrugated pipe.

Further specifically, a shell is arranged on the outer side of the heat-preservation anti-condensation layer, and a heating device is arranged between the shell and the heat-preservation anti-condensation layer.

More specifically, the corrugated pipe is made of metal and is formed by seamless connection of a plurality of sections of which have wavy circular arcs.

More specifically, a shock pad is arranged at the bottom of the vibration table.

More specifically, four shock pads are arranged and are respectively positioned at four corners of the bottom of the vibration table.

More specifically, dry air is introduced between the shell and the heat-preservation anti-condensation layer.

Further specifically, the box body is provided with a humidifying component for increasing humidity to the inner environment of the box body, a pressurizing component for increasing air pressure to the inner environment of the box body and a temperature adjusting component for adjusting the temperature of the inner environment of the box body.

The utility model has the advantages that: after the structure is adopted, in the test process, the transmission of the vibration generated by the vibration table to the low-pressure box body can be weakened through the use of the corrugated pipe, meanwhile, the installation precision between the vibration table and the low-pressure box body does not need to be considered, small deviation can be accommodated, and the installation efficiency is improved; meanwhile, the sealing device has a good sealing effect and improves the test precision.

Drawings

Fig. 1 is a schematic structural diagram of the multi-combination test chamber of the present invention.

In the figure: 1. a vibration table; 2. a low pressure tank; 3. a cylinder body; 4. moving coils; 5. a vibration platform; 6. a bellows; 7. an upper flange; 8. a lower flange; 9. a heat-insulating anti-condensation layer; 10. a housing; 11. a heating device; 12. a shock-absorbing pad.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the multiple comprehensive test box comprises a vibrating table 1 and a low-pressure box body 2 arranged on the vibrating table 1, wherein the low-pressure box body 2 is fixed on a cylinder body 3 of the vibrating table 1, a vibrating platform 5 is arranged on a moving coil 4 of the vibrating table 1, the vibrating platform 5 extends into the low-pressure box body 2, the low-pressure box body 2 and the cylinder body 3 are connected through a corrugated pipe 6, one end of the corrugated pipe 6 is fixed on the low-pressure box body 2 through an upper flange 7, the other end of the corrugated pipe 6 is fixed on the cylinder body 3 through a lower flange 8, and the moving coil 4 drives the vibrating platform 5 to move inside the corrugated pipe 6; meanwhile, sealing rings are arranged between the upper flange 7 and the low-pressure box body 2 and between the lower flange 8 and the cylinder body 3, so that the sealing performance between the low-pressure box body 2 and the outside is ensured; if the corrugated pipe 6 has small deviation in the installation process, the existence of the deviation can be accommodated due to the characteristics of the corrugated pipe 6, so that the precision requirement is not high in the installation process, the debugging difficulty is reduced, and the installation efficiency can be improved; the installation sealing surfaces are arranged on the upper flange 7 and the lower flange 8, and the sealing rings are matched for sealing, so that the sealing performance is good.

Because the temperature in the low-pressure box body 2 is lower, the outer side of the corrugated pipe 6 is contacted with the outside and dew is easily condensed on the surface of the corrugated pipe, an electric device is arranged in the vibration table 1, and the vibration table 1 is influenced by the water after entering, so that a heat-preservation and dew-condensation-prevention layer 9 is arranged on the outer side of the corrugated pipe 6 to prevent dew condensation; on the basis of the heat-preservation condensation-prevention layer 9, the condensation-prevention effect can be further improved in two ways, and the first way is realized by improving the temperature between the shell 10 and the heat-preservation condensation-prevention layer 9, so that a heating device 11 is added, the enthalpy value of moisture in the air is increased due to the temperature rise, and condensation is not easy to occur; secondly, dry air is introduced between the shell 10 and the heat-preservation anti-condensation layer 9, and the dry air contains less moisture and is not easy to condense; the two modes can be further used simultaneously, and the effect is more obvious.

Bellows 6 in this application adopts the metal material preparation to form, is wave circular arc shape seamless connection by the multistage cross-section and forms, and this structure has the compressive capacity (malleation or negative pressure) of ideal, can resist low pressure box 2 to its pressure and the low-pressure tank 2 interior low pressure, has shock-absorbing function simultaneously, prevents to pass to low pressure box 2 on the vibration of shaking table 1, provides better and more stable experimental environment.

Meanwhile, in order to prevent the vibration table 1 from affecting buildings due to vibration, four shock absorption pads 12 are arranged at the bottom of the vibration table 1 and are respectively positioned at four corners of the bottom of the vibration table 1; the 1 bottom shock pad 12 of current shaking table is mostly the gasbag of aerifing, and the inflation volume is fine with the inflation pressure is difficult to control, and this can make and have certain deviation between shaking table 1 and the low pressure box 2, and adopts this high deviation of solution that 6 structures of bellows can be fine, can not cause the influence.

Furthermore, in order to enable the test box to simulate a comprehensive environment, the low-pressure box 2 is provided with a humidifying component for increasing humidity to the internal environment of the box, a pressurizing component for increasing air pressure to the internal environment of the box and a temperature adjusting component for adjusting the internal environment temperature.

In conclusion, the corrugated pipe 6, the upper flange 7 and the lower flange 8 are combined, so that the influence caused by height deviation and horizontal deviation can be avoided, the test environment is improved, the mounting precision is reduced, and the efficiency is improved; meanwhile, the heat-preservation condensation-preventing layer 9 is used for preventing condensation, the heating device 11 is used for blowing in dry air to improve the condensation-preventing effect, and the circuit in the vibration table 1 cannot be influenced; the impact on the building is reduced by the cushion 12.

It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides a many combined test case, includes shaking table (1) and sets up low pressure box (2) on shaking table (1), low pressure box (2) be fixed in on cylinder body (3) of shaking table (1), the movable coil (4) of shaking table (1) on install vibration platform (5), vibration platform (5) stretch into to low pressure box (2) in, its characterized in that low pressure box (2) and cylinder body (3) between be connected through bellows (6), the one end of bellows (6) be fixed in on low pressure box (2), the other end of bellows (6) be fixed in on cylinder body (3), movable coil (4) drive vibration platform (5) inside the removal in bellows (6).

2. A multi-combination test chamber according to claim 1, wherein an upper flange (7) is arranged at the top of the corrugated pipe (6), a lower flange (8) is arranged at the bottom of the corrugated pipe (6), the upper flange (7) is fixed on the low-pressure tank body (2), and the lower flange (8) is fixed on the cylinder body (3); sealing rings are arranged between the upper flange (7) and the low-pressure box body (2) and between the lower flange (8) and the cylinder body (3).

3. A multiple-combination test chamber according to claim 1, wherein a thermal insulation and condensation-proof layer (9) is arranged on the outer side of the corrugated pipe (6).

4. A multiple integrated test chamber according to claim 3, characterized in that an outer shell (10) is provided on the outer side of the thermal insulation anti-condensation layer (9), and a heating device (11) is provided between the outer shell (10) and the thermal insulation anti-condensation layer (9).

5. A multi-combination test chamber according to claim 1, wherein the bellows (6) is made of metal and is formed by seamless connection of a plurality of sections having a wave-shaped circular arc shape.

6. A multiple-combination test chamber according to claim 1, wherein a shock-absorbing pad (12) is provided at the bottom of the vibration table (1).

7. A multi-synthesis test chamber according to claim 6, characterized in that the damping cushions (12) are four in number and are located at the four corners of the bottom of the vibration table (1).

8. A multi-synthesis test chamber according to claim 4, characterized in that dry air is introduced between the outer shell (10) and the insulating anti-condensation layer (9).

9. The multi-combination test chamber according to claim 1, wherein the low-pressure chamber (2) is provided with a humidifying component for increasing humidity to the inner environment of the chamber, a pressurizing component for increasing air pressure to the inner environment of the chamber, and a temperature regulating component for regulating the temperature of the inner environment of the chamber.

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