Comprehensive test box

Abstract

The utility model discloses a comprehensive test box which comprises a foundation, a downwards-sunken foundation pit is arranged in the foundation, a concrete bearing base body is poured in the foundation pit, and a first buffer layer, a framework layer and a second buffer layer are arranged between the concrete bearing base body and the foundation pit. The first buffer layer, the framework layer and the second buffer layer are all of a cylindrical structure and wrap the circumferential direction and the bottom of the concrete bearing base body, and the framework layer is provided with a supporting part extending upwards in the vertical direction to form a foundation pit; the vibration table is fixedly mounted at the upper end of the concrete bearing base body through a metal base; the bottom of the test box body is provided with a butt joint window, and the butt joint window is fixedly connected to the supporting part in a sealed mode. The utility model has the beneficial effect of solving the technical problem that the connection sealing difficulty of the large-scale vibration table and the box body is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental test chamber, concretely relates to a comprehensive test chamber. BACKGROUND

[0002] The environmental test chamber is a kind of test equipment that can simulate different environmental parameters, after product is placed in such test chamber, the use performance of product in simulated environment can be tested and evaluated by setting environmental parameters in test chamber. The known test chamber simulation functions are: temperature, humidity, air pressure, vibration, wind and snow, sand and other environments. According to different test objects, the functions of test chamber can be targeted combination configuration.

[0003] For vibration test chamber, its purpose is mainly to provide vibration to detect the use performance of product in vibration environment. Vibration test chamber includes cabinet and vibration platform, cabinet has working room inside, working room lower part is equipped with interfacing window, vibration platform is supported on ground, and is connected with working room through interfacing window. Since vibration test chamber usually also has temperature, air pressure and other function simulation, the sealed connection between vibration platform and interfacing window is particularly important. The vibration platform of the present is mostly designed for small test objects, such as electronic components, batteries, mobile phones and other products, and the vibration power provided is relatively low. The sealed design between vibration platform and interfacing window is easy to achieve. When the test chamber needs to carry out vibration test on large products, such as cars, airplanes, steam turbines and other products, the shape and power of vibration table will be huge. At this time, the difficulty of sealed connection between vibration table and test chamber cabinet will also increase exponentially. The traditional connection method cannot meet the sealing requirement, resulting in that high-power vibration table cannot be compatible with installation to the bottom of test chamber. SUMMARY

[0004] Therefore, the utility model provides a comprehensive test chamber, and the technical problem that large vibration table and cabinet interface sealing difficulty are solved.

[0005] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0006] A kind of comprehensive test chamber, its key is, including:

[0007] Foundation, the foundation is equipped with downwardly recessed foundation pit, the concrete bearing base body is poured in the inside of foundation pit, first buffer layer, framework layer and second buffer layer are equipped between the concrete bearing base body and foundation pit, first buffer layer, framework layer and second buffer layer are all cylindrical structure, and are covered in the circumferential direction and bottom of the concrete bearing base body, wherein the framework layer has support portion extending out of foundation pit in vertical direction;

[0008] Vibration table, which is fixedly installed on the upper end of the concrete bearing base body through a metal base; and

[0009] The test box body is provided with a docking window at the bottom, which is fixedly and sealingly connected to the supporting part.

[0010] Preferably, the upper end of the supporting part is formed with a lower supporting plane, and the lower end of the docking window is formed with an upper supporting plane, the upper supporting plane is opposite to the lower supporting plane and a sealing glue is arranged therebetween.

[0011] Preferably, the first buffer layer comprises a polystyrene board surrounding the concrete load-bearing base body in the circumferential direction, and a fine gravel layer supported at the bottom of the concrete load-bearing base body.

[0012] Preferably, the second buffer layer is filled with fine gravel between the framework layer and the foundation pit.

[0013] Preferably, the framework layer comprises a steel plate and a first I-beam uniformly supported on one side of the steel plate, and the first I-beam is located in the second buffer layer.

[0014] Preferably, the tamping coefficient of the fine gravel layer is greater than 0.95.

[0015] Preferably, the metal base comprises an upper supporting plate, a lower supporting plate and a second I-beam connected between the upper supporting plate and the lower supporting plate, and the lower supporting plate and the second I-beam are poured into the concrete load-bearing base body.

[0016] Preferably, the test box body comprises a top plate, a bottom plate and four side plates surrounding the top plate and the bottom plate, and a heat sink system is embedded in each of the four side plates, and a liquid or gas circulation channel is arranged in the heat sink system for adjusting the internal temperature of the test box body.

[0017] Preferably, the heat sink system comprises vertical risers arranged in an array in the side plate, each vertical riser is connected with an inlet liquid manifold group at the upper end and an outlet liquid manifold group at the lower end, and an oil temperature machine is arranged between the inlet liquid manifold group and the outlet liquid manifold group.

[0018] Preferably, one end of the test box body is provided with a box door, a sealing ring is arranged between the box door and the test box body, and an annular cavity is arranged in the sealing ring; the test box body is further provided with a gas charging and discharging system for charging and discharging gas into the annular cavity.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. The concrete has excellent anti-seismic performance, the whole test box adopts the concrete as the bearing matrix, and most of the vibration generated by the vibration table can be absorbed. In addition, the first buffer layer and the second buffer layer are tightly attached to the inner and outer sides of the skeleton layer respectively, which can effectively avoid the vibration conduction to the test box body, and the sealing connection position between the lower part of the test box body and the support part will not appear violent vibration, thereby greatly reducing the sealing connection difficulty of the interface window and the support part. Therefore, through such design, when the vibration table with high power and large size is installed at the lower part of the test box, reliable sealing connection between the vibration table and the bottom of the box body can be ensured, which provides a solid technical foundation for vibration simulation test of large products.

[0021] 2. The heat sink system is embedded in each side plate of the box body, the heat sink system is provided with a liquid or gas circulation channel, and the liquid or gas medium is continuously circulated into the circulation channel to control the temperature in the working chamber in a heat exchange mode, so that the large-size test box can realize rapid temperature rise and fall, and has the advantages of good temperature distribution uniformity and precise temperature control.

[0022] 3. The vibration table is directly located in the working chamber of the test box, and there is no pressure difference between the vibration table and the working chamber, which can be applied to normal pressure, negative pressure or high pressure test box, and has the advantage of wide application range.

[0023] 4. The box door adopts the air bag type inflation sealing technology, and the sealing performance is not affected by the pressure in the working chamber, and the test box can also be applied to negative pressure, normal pressure and high pressure three working conditions. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the utility model comprehensive test box;

[0025] Figure 2 It is Figure 1 the local enlarged view of the position I;

[0026] Figure 3 It is Figure 1 the local enlarged view of the position II;

[0027] Figure 4 It is Figure 1 the local enlarged view of the position III;

[0028] Figure 5 It is a structural schematic view of the side plate 3d;

[0029] Figure 6 It is a working principle schematic view of the heat sink system;

[0030] Figure 7 It is a schematic view showing the connection relationship between the vertical standpipe 4a and the liquid inlet manifold group 4b in the heat sink system;

[0031] Figure 8 An elevation view showing the connection relationship between the vertical riser 4a, the inlet manifold assembly 4b, and the outlet manifold assembly 4c;

[0032] Figure 9 A partial sectional view showing the sealed connection between the chamber door 3f and the test chamber body 3;

[0033] Figure 10 This is a schematic diagram illustrating the working principle of the inflation / deflation system. Detailed Implementation

[0034] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0035] like Figure 1 As shown, a comprehensive test chamber mainly comprises three parts: a foundation 1, a vibration table 2, and a test chamber body 3. The foundation 1 is a concrete foundation with a downwardly recessed pit 1a. A concrete load-bearing base 1b is poured inside the pit 1a. Between the concrete load-bearing base 1b and the pit 1a are a first buffer layer 1c, a skeleton layer 1d, and a second buffer layer 1e. The first buffer layer 1c, the skeleton layer 1d, and the second buffer layer 1e are all cylindrical structures, covering the perimeter and bottom of the concrete load-bearing base 1b. The skeleton layer 1d has a support portion 1d1 extending vertically upwards from the pit 1a. The test chamber body 3 includes a top plate 3b, a bottom plate 3c, and four side plates 3d surrounding the top plate 3b and the bottom plate 3c. A docking window 3a is provided in the central area of ​​the bottom plate 3c. (See attached diagram...) Figure 2 It can be seen that the docking window 3a is fixedly and sealed to the support 1d1. The vibration table 2 is fixedly installed on the upper end of the concrete load-bearing base 1b via the metal base 2a.

[0036] Based on the above structural design, the entire test chamber uses concrete as its load-bearing base. Concrete itself has excellent seismic resistance and can absorb most of the vibrations generated by the vibration table 2. In addition, the first buffer layer 1c and the second buffer layer 1e are respectively attached tightly to the inner and outer sides of the frame layer 1d, effectively preventing vibration transmission to the test chamber body 3. The sealing connection between the test chamber body 3's docking window 3a and the support part 1d1 will not experience severe vibration, thus greatly reducing the difficulty of sealing the connection between the docking window 3a and the support part 1d1. Therefore, through this design, regardless of the power and size of the vibration table configured inside the test chamber, it can be ensured that the vibration table is sealed and connected to the bottom of the chamber, providing a solid technical foundation for vibration simulation testing of medium and large-sized products.

[0037] For further details, please refer to Figure 2The upper end of the support part 1d1 has a lower support plane a, and the lower end of the docking window 3a has an upper support plane b. The upper support plane b is directly supported on the lower support plane a, and a sealant c is provided between the two. Due to the configuration of the concrete matrix and the two-stage buffering of the first buffer layer 1c and the second buffer layer 1e, the sealed connection of the large vibration table can be achieved by sealing with sealant c alone.

[0038] Please refer to Figure 4 The first buffer layer 1c includes a polystyrene board 1c1 surrounding the concrete load-bearing substrate 1b and a fine sand and gravel layer 1c2 supporting the bottom of the concrete load-bearing substrate 1b. The second buffer layer 1e is filled with fine sand and gravel between the skeleton layer 1d and the foundation pit 1a. This design not only forms all-round vibration absorption and buffering on both the inner and outer sides of the skeleton layer 1d, but also, with fine sand and gravel on both the upper and lower sides of the bottom of the skeleton layer 1d, it can fully support the weight of the vibrating table 2 and the concrete load-bearing substrate 1b. Furthermore, to ensure load-bearing capacity, the compaction coefficients of both the fine sand and gravel layer 1c2 and the second buffer layer 1e are greater than 0.95. Figure 4 It can be seen that the skeleton layer 1d includes a steel plate 1d2 and a first I-beam 1d3 uniformly fixed on one side of the steel plate 1d2. The first I-beam 1d3 is located in the second buffer layer 1e. This layout can ensure the stability of the skeleton layer 1d installed in the foundation pit 1a, thereby ensuring good load-bearing capacity for the upper test chamber 3.

[0039] For example Figure 3 As shown, to ensure that the vibration table can be better installed on the upper end of the concrete load-bearing base 1b, the metal base 2a provided in this embodiment consists of an upper support plate 2a1, a second I-beam 2a3, and a lower support plate 2a2 connected sequentially from top to bottom. There are multiple second I-beams 2a3, which are arranged in an array between the upper support plate 2a1 and the lower support plate 2a2. The vibration table 2 is fixedly installed on the upper support plate 2a1, and the lower support plate 2a2 and the second I-beams 2a3 are both cast inside the concrete load-bearing base 1b.

[0040] The test objects of the comprehensive test chamber include, but are not limited to, automobiles, aircraft, and steam turbines. These products have large dimensions, so the test chamber body 3 is also larger than that of traditional chambers. Therefore, if only traditional electric heating or compressor cooling methods are used for temperature simulation during test chamber operation, it will result in slow temperature rise and fall, uneven temperature distribution, and inaccurate temperature control within the test chamber. Therefore, this embodiment improves upon the four circumferential side plates 3d of the test chamber body 3 by embedding a heat sink system within each side plate 3d. The heat sink system has a liquid or gas circulation channel. By continuously circulating liquid or gas media into the circulation channel, the internal temperature of the chamber is controlled through heat exchange, giving the large-size test chamber advantages such as rapid temperature rise and fall, good temperature distribution uniformity, and precise temperature control.

[0041] Please refer to the attached document. Figure 5 As shown, the improved 3D structure of the side plate is as follows:

[0042] The side panel 3d consists of, from the outside to the inside, an outer wall panel 7, an outer insulation layer 6, an inner wall panel 5, and a heat sink system layer 4. The outer wall panel 7 is a metal exterior decorative panel, and the outer insulation layer 6 provides insulation. The inner wall panel 5 is a steel plate and serves a load-bearing function. To further ensure the strength of the side panel 3d, I-beams are also embedded within the outer insulation layer 6. The heat sink system layer 4 is in direct contact with the working chamber 31 of the test chamber.

[0043] Please refer to the attached document. Figure 6 , 7 As shown in Figure 8, the heat sink system includes an oil temperature controller 4d, an inlet manifold assembly 4b, an outlet manifold assembly 4c, and a number of vertical risers 4a. The vertical risers 4a are arrayed inside the side plate 3d. The inlet manifold assembly 4b is connected to the upper end of each vertical riser 4a, and the outlet manifold assembly 4c is connected to the lower end of each vertical riser 4a. The inlet manifold assembly 4b and the outlet manifold assembly 4c are respectively connected to the oil outlet and oil inlet of the oil temperature controller 4d. When the oil temperature controller 4d operates, the medium oil circulates along the inlet manifold assembly 4b → each vertical riser 4a → outlet manifold assembly 4c. Based on this, the working chamber 31 can be adjusted by setting different oil temperatures. In practice, each side plate 3d can use its own oil temperature controller 4d, inlet manifold assembly 4b, and outlet manifold assembly 4c, or all four side plates 3d can share one set of oil temperature controller 4d, inlet manifold assembly 4b, and outlet manifold assembly 4c.

[0044] For example Figure 9 and 10 As shown, a door 3f is provided on one side of the test chamber body 3. One end of the door 3f is rotatably connected to the test chamber body 3, and a locking device is provided between the other end and the test chamber body 3. A sealing ring 5 is provided between the door 3f and the test chamber body 3, and an annular chamber 5a is provided inside the sealing ring 5. The test chamber body 3 is also equipped with a gas filling and defilling system, please refer to the attached document. Figure 10 As shown, the inflation / deflation system includes an air inlet pipe 5b and an air outlet pipe 5c that are connected to the annular chamber 5a. The air inlet pipe 5b is equipped with an air pump 5d and an air inlet solenoid valve 5e, and the air outlet pipe 5c is equipped with an air outlet solenoid valve 5f.

[0045] After the locking device locks the chamber door 3f, the air pump 5d and the air inlet solenoid valve 5e are turned on to fill the annular chamber 5a of the sealing ring 5 with gas. This causes the sealing ring 5 to expand and seal tightly between the chamber door 3f and the test chamber body 3, providing superior sealing performance compared to traditional rubber ring sealing methods. After the test, the exhaust solenoid valve 5f is opened to release the gas from the sealing ring 5, allowing the chamber door 3f to be opened.

[0046] Finally, it needs to be explained that the above description is only the preferred embodiments of the present application, and the ordinary skilled in the art can make various similar expressions under the inspiration of the present application without violating the purpose and claims of the present application, and such changes fall within the protection scope of the present application.

Claims

1. An integrated test chamber, characterized by, The utility model relates to a kind of test box and test box box body, including: foundation (1), the foundation (1) is provided with downwardly recessed foundation pit (1a) inside, the concrete bearing base body (1b) is poured inside in the foundation pit (1a), the first buffer layer (1c), framework layer (1d) and second buffer layer (1e) are equipped between the concrete bearing base body (1b) and foundation pit (1a), the first buffer layer (1c), framework layer (1d) and second buffer layer (1e) are all cylindrical structure, and the circumferential and bottom of the concrete bearing base body (1b) are covered, wherein the framework layer (1d) has support part (1d1) extending out of foundation pit (1a) along vertical direction; Vibration table (2) is fixedly installed on the upper end of the concrete bearing base body (1b) by metal base (2a);And Test box box body (3), the bottom of the test box box body (3) is provided with docking window (3a), and the docking window (3a) is fixedly and sealingly connected on the support part (1d1). Lower support plane (a) is formed on the upper end of the support part (1d1), and upper support plane (b) is formed on the lower end of the docking window (3a), the upper support plane (b) is opposite to the lower support plane (a) and is provided with sealing glue (c) between the two.

2. The integrated test chamber of claim 1, wherein: The first buffer layer (1c) includes polystyrene board (1c1) around the circumferential of the concrete bearing base body (1b), and fine sandstone layer (1c2) supported on the bottom of the concrete bearing base body (1b).

3. The integrated test chamber of claim 1, wherein: The second buffer layer (1e) is filled with fine sandstone between the framework layer (1d) and the foundation pit (1a).

4. The integrated test chamber of claim 1, wherein: The framework layer (1d) includes steel plate (1d2) and first I-beam (1d3) uniformly supported on one side of the steel plate (1d2), and the first I-beam (1d3) is located in the second buffer layer (1e).

5. The integrated test chamber of claim 1, wherein: The tamping coefficient of the fine sandstone layer (1c2) is greater than 0.

95.

6. The integrated test chamber of claim 3, wherein: The metal base (2a) includes upper support plate (2a1), lower support plate (2a2) and second I-beam (2a3) connected between the upper support plate (2a1) and the lower support plate (2a2), and the lower support plate (2a2) and the second I-beam (2a3) are poured into the concrete bearing base body (1b).

7. The integrated test chamber of claim 1, wherein: The test box box body (3) includes top plate (3b), bottom plate (3c) and four side plates (3d) around the top plate (3b) and the bottom plate (3c), and the four side plates (3d) are embedded with heat sink system, and the heat sink system is provided with liquid or gas circulation channel for adjusting the internal temperature of the test box box body (3).

8. The integrated test chamber of claim 1, wherein: The heat sink system includes vertical riser (4a) arrayed in the side plate (3d), the upper end of each vertical riser (4a) is connected with liquid inlet manifold group (4b), the lower end is connected with liquid outlet manifold group (4c), and the oil temperature machine (4d) is arranged between the liquid inlet manifold group (4b) and the liquid outlet manifold group (4c).

9. The integrated test chamber of claim 8, wherein: ​ 10. The integrated test chamber of claim 1, wherein: One end of the test box body (3) is provided with a box door (3f), and a sealing ring (5) is arranged between the box door (3f) and the test box body (3). The sealing ring (5) is internally provided with an annular chamber (5a). The test box body (3) is further provided with a gas charging and discharging system for charging and discharging gas to the annular chamber (5a).

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