Vibration test bench used in severe environment

Abstract

The utility model provides a vibration test bench used in a severe environment, which comprises a vibration table, a waterproof switching platform and a thermal insulation box, the vibration table is fixed in the thermal insulation box, the waterproof switching platform penetrates through the thermal insulation box and is connected with the vibration table, and the edge of the waterproof switching platform is sealed with the thermal insulation box. According to the utility model, through the arrangement of the waterproof switching platform and the thermal insulation box, the vibration table is always in an optimal working environment and is not influenced by severe weather, so that the vibration table can operate normally for a long time in the severe weather. In addition, the waterproof switching platform is provided with a table top and double layers of sealing rubber sheets, the vibration table drives the table top to vibrate, vibration is decoupled through the sealing rubber sheets, vibration of the table top cannot be transmitted to the thermal insulation box, and vibration of the whole device can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration testing, in particular to a vibration testing platform used in harsh environments. Background Art

[0002] The electric vibration table is a test equipment that simulates the vibration environment. The product (test piece) is installed on the working table of the electric vibration table. By simulating the actual working conditions of the product, the seismic performance of the product is evaluated and the stability and reliability of the product are improved. Therefore, it is widely used in aviation, aerospace, navigation, shipbuilding, automobile, electronics, communications, home appliances and instrumentation industries.

[0003] Environmental testing is a test of the product under environmental conditions that simulate actual working conditions. Generally, it includes: vibration test, temperature test, humidity test and salt spray test. The electric vibration table is the main equipment for vibration test, the temperature and humidity test chamber is the main equipment for temperature and humidity test, and the salt spray test chamber is the main equipment for salt spray test. Except for the vibration test, the other three tests can be regarded as simulating the impact of climate on the product. However, the temperature and humidity test chamber and the salt spray test chamber cannot simulate the most realistic environment and cannot fully meet the product testing requirements. This requires the product to be in a real climate environment, conduct vibration tests, and test product performance. Therefore, it is necessary to develop a set of devices to protect the vibration table in harsh environments so that it can operate normally and for a long time. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a vibration test bench for use in harsh environments, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a vibration test table for use in harsh environments, comprising a vibration table, a waterproof transfer platform and a thermal insulation box, the vibration table is fixed in the thermal insulation box, the waterproof transfer platform passes through the thermal insulation box and is connected to the vibration table, and the edge of the waterproof transfer platform is sealed with the thermal insulation box.

[0008] Preferably, the waterproof transfer platform includes a table top, a first sealing rubber, an upper pressure ring, a first pressure plate, a lower pressure ring, a second pressure plate and a second sealing rubber. The table top is connected to the vibration table through the first pressure plate and the second pressure plate in sequence. The inner ring of the first sealing rubber is located in the groove of the second pressure plate and is pressed by the first pressure plate. The outer ring of the first sealing rubber is fixed to the surface of the insulation box and is pressed by the lower pressure ring. The inner ring of the second sealing rubber is located in the groove of the first pressure plate and is pressed by the table top. The outer ring of the second sealing rubber is fixed to the surface of the lower pressure ring and is pressed by the upper pressure ring.

[0009] Preferably, the table top, the first pressing plate and the second pressing plate are all made of aluminum alloy.

[0010] Preferably, the upper pressing ring and the lower pressing ring are both made of stainless steel.

[0011] Preferably, the first sealing rubber and the second sealing rubber are both made of IIR butyl rubber.

[0012] Preferably, it also includes a fan and an air duct, wherein the fan is fixed inside the thermal insulation box, and the fan is connected to the vibration table and the outside of the thermal insulation box respectively through the air duct.

[0013] Preferably, it also includes a temperature-regulating dehumidifier, which is fixed inside the temperature-isolating box. The temperature-regulating dehumidifier is provided with a temperature and humidity sensor. When the temperature and humidity sensor exceeds a set value, the temperature-regulating dehumidifier starts.

[0014] Preferably, the thermal insulation box is a stainless steel shell, the inner layer of the thermal insulation box is inlaid with a high-density thermal insulation surface, and the outer layer of the thermal insulation box is provided with a heat-reflecting thermal insulation coating.

[0015] (III) Beneficial effects

[0016] The utility model provides a vibration test bench for use in harsh environments, which has the following beneficial effects:

[0017] This solution provides a vibration test bench for use in harsh environments. By setting up a waterproof transfer platform and a temperature-isolating box, the vibration bench is always in the best working environment and is not affected by harsh weather, so that the vibration bench can operate normally and for a long time in harsh weather. In addition, the waterproof transfer platform is provided with a table top and a double-layer sealing rubber. The vibration bench drives the table top to vibrate, and the vibration is decoupled by the sealing rubber. The vibration of the table top cannot be transmitted to the temperature-isolating box, which can prevent the vibration of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a sectional view of the overall structure of a vibration test bench for use in harsh environments provided by the utility model;

[0019] Figure 2 The utility model is a cross-sectional view of a waterproof transfer platform in a vibration test bench for use in harsh environments.

[0020] In the figure: 1. vibration table; 2. waterproof transfer platform; 3. temperature insulation box; 4. fan; 5. air duct; 6. temperature-controlled dehumidifier; 7. table top; 8. first sealing rubber; 9. upper pressure ring; 10. first pressure plate; 11. lower pressure ring; 12. second pressure plate; 13. second sealing rubber. DETAILED DESCRIPTION

[0021] The utility model provides a vibration test bench for use in harsh environments, such as Figure 1-2 As shown, it includes a vibration table 1, a waterproof transfer platform 2 and an insulation box 3. The vibration table 1 is fixed in the insulation box 3, the waterproof transfer platform 2 penetrates the insulation box 3 and is connected to the vibration table 1, and the edge of the waterproof transfer platform 2 is sealed with the insulation box 3. The moving table surface of the vibration table 1 is connected to the waterproof transfer platform 2, and the vibration table 1 transmits vibration to the product to be vibrated through the waterproof transfer platform 2.

[0022] like Figure 2 As shown, the waterproof transfer platform 2 includes a table top 7, a first sealing rubber 8, an upper pressure ring 9, a first pressure plate 10, a lower pressure ring 11, a second pressure plate 12 and a second sealing rubber 13. The table top 7 is connected to the vibration table 1 through the first pressure plate 10 and the second pressure plate 12 in sequence. The inner ring of the first sealing rubber 8 is located in the groove of the second pressure plate 12 and is pressed by the first pressure plate 10. The outer ring of the first sealing rubber 8 is fixed on the surface of the insulation box 3 and is pressed by the lower pressure ring 11. The inner ring of the second sealing rubber 13 is located in the groove of the first pressure plate 10 and is pressed by the table top 7. The outer ring of the second sealing rubber 13 is fixed on the surface of the lower pressure ring 11 and is pressed by the upper pressure ring 9.

[0023] When the vibration table 1 drives the table top 7 to vibrate, the first sealing rubber 8 and the second sealing rubber 13 decouple the vibration, so that the vibration of the table top 7 cannot be directly transmitted to the insulation box 3, and the double-layer sealing rubber is used for sealing to prevent rainwater from penetrating into the insulation box 3 in bad weather.

[0024] It should be noted that in this embodiment, a double layer of sealing rubber is used for sealing and vibration decoupling. According to the actual vibration situation, the number of layers of the sealing rubber can be increased or decreased, and correspondingly, the number of pressure plates and pressure rings can also be increased or decreased.

[0025] In a specific embodiment, the table 7, the first pressing plate 10 and the second pressing plate 12 are all made of aluminum alloy. By using aluminum alloy material and hard oxidation treatment on the surface, the corrosion resistance is improved.

[0026] In a specific implementation, the upper pressing ring 9 and the lower pressing ring 11 are both made of stainless steel to improve the corrosion resistance of the device.

[0027] In a specific embodiment, the first sealing rubber 8 and the second sealing rubber 13 are both made of IIR butyl rubber, which has excellent sunlight anti-aging performance, good watertightness, and excellent high and low temperature resistance.

[0028] In a specific embodiment, the vibration test bench further includes a fan 4 and an air duct 5. The fan is fixed inside the temperature-isolating box 3. The fan 4 is connected to the vibration table 1 and the outside of the temperature-isolating box 3 through the air duct 5. The fan 4 can replace the heat of the vibration table 1 itself, thereby increasing the service life of the vibration table 1.

[0029] In a specific embodiment, the vibration test bench further includes a temperature-adjusting dehumidifier 6, which is fixed inside the temperature-isolating box 3. The temperature-adjusting dehumidifier 6 is provided with a temperature and humidity sensor. When the temperature and humidity sensor exceeds a set value, the temperature-adjusting dehumidifier 6 is started. By setting the temperature-adjusting dehumidifier 6 to adjust the temperature and humidity inside the temperature-isolating box 3, the vibration table 1 is always in the optimal working environment, thereby improving the operation time of the vibration table 1.

[0030] In a specific embodiment, the insulation box 3 is a stainless steel shell, the inner layer of the insulation box 3 is inlaid with a high-density insulation surface, and the outer layer of the insulation box 3 is provided with a heat-reflecting insulation coating. The temperature inside the insulation box 3 can be unaffected by the external environment, and the temperature inside the insulation box 3 can be further stabilized by the external heat-reflecting insulation coating, thereby increasing the operating time of the vibration table 1.

[0031] The best working environment of the vibration table is 25°C and 55% humidity. However, in the actual working environment, the vibration table often has a short operating time and is prone to failure due to rain, snow and exposure to the sun. The technical solution of this embodiment makes the use of the vibration table unaffected by the environment, greatly improving the operating time and service life of the vibration table.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration test bench for use in harsh environments, characterized in that: The invention comprises a vibration table (1), a waterproof transfer platform (2) and a thermal insulation box (3); the vibration table (1) is fixed in the thermal insulation box (3); the waterproof transfer platform (2) penetrates the thermal insulation box (3) and is connected to the vibration table (1); and the edge of the waterproof transfer platform (2) is sealed with the thermal insulation box (3).

2. A vibration test bench for use in harsh environments according to claim 1, characterized in that: The waterproof transfer platform (2) comprises a table top (7), a first sealing rubber (8), an upper pressure ring (9), a first pressure plate (10), a lower pressure ring (11), a second pressure plate (12) and a second sealing rubber (13). The table top (7) is connected to the vibration table (1) through the first pressure plate (10) and the second pressure plate (12) in sequence. The inner ring of the first sealing rubber (8) is located in the groove of the second pressure plate (12) and is pressed by the first pressure plate (10). The outer ring of the first sealing rubber (8) is fixed on the surface of the insulation box (3) and is pressed by the lower pressure ring (11). The inner ring of the second sealing rubber (13) is located in the groove of the first pressure plate (10) and is pressed by the table top (7). The outer ring of the second sealing rubber (13) is fixed on the surface of the lower pressure ring (11) and is pressed by the upper pressure ring (9).

3. The vibration test bench for use in harsh environments according to claim 2, characterized in that: The table top (7), the first pressing plate (10) and the second pressing plate (12) are all made of aluminum alloy.

4. The vibration test bench for use in harsh environments according to claim 2, characterized in that: The upper pressing ring (9) and the lower pressing ring (11) are both made of stainless steel.

5. The vibration test bench for use in harsh environments according to claim 2, characterized in that: The first sealing rubber (8) and the second sealing rubber (13) are both made of IIR butyl rubber.

6. The vibration test bench for use in harsh environments according to claim 1, characterized in that: It also includes a fan (4) and an air duct (5), wherein the fan is fixed inside the thermal insulation box (3), and the fan (4) is connected to the vibration table (1) and the outside of the thermal insulation box (3) respectively through the air duct (5).

7. The vibration test bench for use in harsh environments according to claim 1, characterized in that: It also includes a temperature-regulating dehumidifier (6), which is fixed inside the temperature-isolating box (3). A temperature and humidity sensor is provided on the temperature-regulating dehumidifier (6). When the temperature and humidity sensor exceeds a set value, the temperature-regulating dehumidifier (6) starts.

8. The vibration test bench for use in harsh environments according to claim 1, characterized in that: The thermal insulation box (3) is a stainless steel shell, the inner layer of the thermal insulation box (3) is inlaid with a high-density thermal insulation surface, and the outer layer of the thermal insulation box (3) is provided with a heat-reflecting thermal insulation coating.

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