An oil supply system for a vibration testing apparatus suitable for a vacuum environment

Abstract

This invention discloses an oil supply system for a vibration testing device suitable for a vacuum environment. The test chamber is a vacuum environment, and an oil tank is located inside the test chamber. The pressure inside the oil tank is lower than the external atmospheric pressure. The oil in the oil tank enters the oil tank under the action of the oil supply component. The gas path component is designed to connect the test chamber and the oil storage component. That is, when the test chamber and the oil storage component are connected, the gas pressure inside the oil storage component and the gas pressure inside the test chamber will gradually become equal, and the oil in the oil tank enters the oil storage component under the action of gravity. When the gas path component supplies gas to the oil storage component, the gas pressure inside the oil storage component increases until the oil return component can work normally. The oil in the oil storage component returns to the oil tank through the oil return component, completing the circulation.

Description

Technical Field

[0001] This invention relates to the field of hydraulic control technology, and more specifically to an oil source system for a vibration testing device suitable for a vacuum environment. Background Technology

[0002] A horizontal vibration table is a widely used testing device. To improve the effective thrust of the equipment, high-pressure hydraulic fluid needs to be supplied between the horizontal platform and the guide rails through an oil inlet pipe to meet the optimal working conditions of the guide rails. The supplied hydraulic fluid will temporarily remain in the oil baffle frame around the guide rails and then return to the oil tank through the return oil pipe. Both the oil inlet and return oil pipes are powered by oil pumps and motors. Under normal temperature and pressure, the hydraulic circuit formed by the oil supply pump and return oil pump can meet the working requirements of a general horizontal vibration table. However, the test chamber of a four-dimensional horizontal vibration table is a vacuum environment. Under vacuum conditions, both the oil pump suction chamber and the test chamber are at a certain degree of vacuum, making it difficult for the hydraulic fluid in the oil baffle frame to return to the oil tank. This results in an imbalance between the oil supply and return, which in turn makes it difficult for the hydraulic oil to circulate continuously and stably in a vacuum environment. Summary of the Invention

[0003] Therefore, the technical problem to be solved by the present invention is that in the prior art, since both the oil pump suction chamber and the test chamber are in a certain vacuum, the return oil pump has difficulty drawing the oil back from the oil frame, resulting in an imbalance between the oil supply and return volume, which in turn leads to the oil being difficult to circulate continuously and stably in a vacuum environment.

[0004] Therefore, the present invention provides an oil source system for a vibration testing device suitable for a vacuum environment, comprising:

[0005] An oil bath component is disposed within the sealed cavity of the test chamber;

[0006] An oil storage device is disposed below an oil tank and communicates with the oil storage device. The medium in the oil tank has an intermediate state in which it is transported toward the oil storage device under the action of gravity.

[0007] The circulation mechanism includes an oil tank, a gas path assembly, an oil supply assembly, and an oil return assembly. The gas path assembly is disposed on the oil storage component and has a depressurized state where the oil storage component communicates with the sealed cavity of the test chamber, and a pressurized state where driving gas is delivered toward the oil storage component. The oil supply assembly is disposed between the oil pool component and the oil tank, and the oil return assembly is disposed between the oil storage component and the oil tank. The oil supply assembly has an oil supply state where it drives the medium in the oil tank to be delivered toward the oil pool component, and the oil return assembly has an oil return state where it drives the medium in the oil pool component to be delivered toward the oil tank.

[0008] Optionally, the oil source system of the vibration testing device suitable for vacuum environment described above further includes a first connecting pipe, one end of which is connected to the oil tank component, and the other end of which is connected to the oil storage component.

[0009] Optionally, the oil source system of the vibration testing device suitable for vacuum environment described above further includes a first switch, which is disposed on the first connecting pipe and is adapted to control the on / off state of the oil tank and the oil storage unit.

[0010] Optionally, in the oil source system of the vibration testing device suitable for a vacuum environment described above, the air circuit component includes a first air pipe and an air supply component. One end of the first air pipe is connected to the oil storage component, and the other end of the first air pipe is connected to the sealed cavity of the test chamber. One end of the air supply component is connected to the oil storage component, and the other end of the air supply component is connected to the outside.

[0011] Optionally, in the oil supply system of the vibration testing device suitable for a vacuum environment described above, the air circuit assembly further includes a second air pipe, a second switch, a third switch, and a first pressure gauge. The second air pipe is disposed between the oil storage component and the air supply component. The second switch is disposed on the first air pipe and is adapted to control the connection and disconnection between the oil storage component and the sealed cavity of the test chamber. The third switch is disposed on the second air pipe and is adapted to control the connection and disconnection between the oil storage component and the air supply component. The first pressure gauge is disposed on the second air pipe and is used to detect the air pressure flowing through the second air pipe.

[0012] Optionally, in the above-mentioned oil supply system of the vibration testing device suitable for vacuum environment, the oil supply component includes an oil supply pump, a second connecting pipe and a third connecting pipe. One end of the oil supply pump is connected to the oil tank through the second connecting pipe, and the other end of the oil supply pump is connected to the oil pool component through the third connecting pipe.

[0013] Optionally, in the oil supply system of the vibration testing device suitable for a vacuum environment described above, the oil supply assembly further includes a fourth connecting pipe, an overflow valve, and a second pressure gauge. The third connecting pipe has a liquid outlet, and the fourth connecting pipe is disposed between the liquid outlet of the third connecting pipe and the oil tank. The overflow valve is disposed on the fourth connecting pipe, and the second pressure gauge is disposed on the third connecting pipe to detect the pressure flowing through the third connecting pipe.

[0014] Optionally, in the oil source system of the vibration testing device suitable for a vacuum environment described above, the oil return assembly includes an oil return pump, a fifth connecting pipe, and a sixth connecting pipe. One end of the oil return pump is connected to the oil storage device through the fifth connecting pipe, and the other end of the oil return pump is connected to the oil tank through the sixth connecting pipe.

[0015] Optionally, in the oil source system of the vibration testing device suitable for a vacuum environment described above, the oil return assembly further includes a fourth switch and a heat exchanger. The fourth switch is disposed on the fifth connecting pipe and is adapted to control the connection between the oil storage device and the oil tank. The heat exchanger is disposed on the sixth connecting pipe.

[0016] Optionally, in the oil supply system of the above-mentioned vibration testing device suitable for vacuum environment, filters are respectively provided on the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe and the sixth connecting pipe.

[0017] Optionally, the oil source system of the vibration testing device suitable for vacuum environment described above also includes a detection component. The detection component includes a first detection element and a second detection element. The first detection element is disposed in the oil tank and is suitable for detecting the highest level of the oil. The first detection element is disposed below the second detection element in the oil tank and is used to detect the lowest level of the oil.

[0018] Optionally, the oil source system of the vibration testing device suitable for a vacuum environment described above also includes an oil collection tank, which is disposed at the bottom of the oil pool.

[0019] The technical solution provided by this invention has the following advantages:

[0020] 1. The oil source system of the vibration testing device suitable for vacuum environment provided by the present invention includes an oil pool, an oil storage component, and a circulation mechanism. The oil pool is disposed in the sealed cavity of the test chamber, and the oil storage component is disposed below the oil pool. The oil pool and the oil storage component are in communication. The medium in the oil pool has an intermediate state in which it is transported towards the oil storage component under the action of gravity. The circulation mechanism includes an oil tank, a gas path assembly, an oil supply assembly, and a return oil assembly. The gas path assembly is disposed on the oil storage component. The gas path assembly has a depressurization state in which the oil storage component is in communication with the sealed cavity of the test chamber and a pressurization state in which it drives the gas to be transported towards the oil storage component. The oil supply assembly is disposed between the oil pool and the oil tank, and the return oil assembly is disposed between the oil storage component and the oil tank. The oil supply assembly has an oil supply state in which it drives the medium in the oil tank to be transported towards the oil pool, and the return oil assembly has an oil return state in which it drives the medium in the oil pool to be transported towards the oil tank.

[0021] This structure is suitable for the oil supply system of a vibration testing device in a vacuum environment. The interior of the test chamber is a vacuum environment, and the oil tank is located inside the test chamber. The pressure inside the oil tank is lower than the external atmospheric pressure. The oil in the oil tank enters the oil tank under the action of the oil supply component. The gas path component is designed to connect the test chamber and the oil storage component. That is, when the test chamber and the oil storage component are connected, the air pressure in the oil storage component and the air pressure in the test chamber will gradually become equal. The oil in the oil tank enters the oil storage component under the action of gravity. When the gas path component supplies gas to the oil storage component, the air pressure in the oil storage component increases until the oil return component can work normally. The oil in the oil storage component returns to the oil tank through the oil return component, completing the circulation.

[0022] 2. The oil source system of the vibration testing device suitable for vacuum environment provided by the present invention has an oil storage component disposed outside the sealed cavity of the test chamber, which increases the test area of ​​the test chamber and can reduce the volume of the test chamber. The oil storage component disposed outside the sealed cavity can also reduce the influence of the test environment on the oil storage component.

[0023] 3. The oil supply system of the vibration testing device suitable for vacuum environment provided by the present invention further includes a first switch, a fourth switch, and a detection component. The detection component obtains the oil level information in the oil storage container, and the first and fourth switches are adjusted to realize the automatic supply of oil in the oil storage container, thereby improving the working efficiency of the oil system.

[0024] 4. The oil source system of the vibration testing device suitable for vacuum environment provided by the present invention can realize the functions of pressurizing and depressurizing the oil storage component through the air circuit component.

[0025] 5. The oil supply system of the vibration testing device suitable for vacuum environment provided by the present invention pressurizes the oil storage component through the air circuit component, which enables the hydraulic pump to fully draw oil during operation, thereby improving working efficiency and reliability. It can also realize the function of quickly returning the oil to the oil tank, thus achieving rapid adjustment.

[0026] 6. The oil source system of the vibration testing device suitable for vacuum environment provided by the present invention is provided with oil filters on the first connecting pipe, the second connecting pipe, the third connecting pipe, the fourth connecting pipe, the fifth connecting pipe and the sixth connecting pipe, to improve the purity of the oil and avoid pipe blockage caused by impurities entering the oil, which would affect the normal circulation of the oil source. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the oil source system for the built-in vibration testing device suitable for vacuum environment provided by the present invention;

[0029] Figure 2 A schematic diagram of the oil source system for the externally mounted vibration testing device suitable for vacuum environments provided by the present invention;

[0030] Figure 3 This is a schematic diagram of the oil inlet provided by the present invention;

[0031] Figure 4 This is a schematic diagram of oil discharge provided by the present invention;

[0032] Figure 5 This is a schematic diagram of the oil collection trough mechanism at the bottom of the oil tank provided by the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Oil bath components;

[0035] 2-Oil reservoir;

[0036] 31-Oil tank; 321-First air pipe; 322-Air supply unit; 323-Second air pipe; 324-Second switch; 325-Third switch; 326-First pressure gauge; 331-Oil supply pump; 332-Second connecting pipe; 333-Third connecting pipe; 334-Fourth connecting pipe; 335-Relief valve; 336-Second pressure gauge; 341-Return oil pump; 342-Fifth connecting pipe; 343-Sixth connecting pipe; 344-Fourth switch; 345-Heat exchanger;

[0037] 4-Test chamber;

[0038] 5-First connecting pipe; 51-First switching element;

[0039] 6-Filter;

[0040] 71 - First inspection piece; 72 - Second inspection piece;

[0041] 8-Oil collection tank; Detailed Implementation

[0042] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0045] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0046] Example 1

[0047] This embodiment provides an oil source system for a vibration testing device suitable for a vacuum environment, such as... Figure 1 , Figures 3 to 5 As shown, the system includes: an oil tank 1, an oil storage unit 2, and a circulation mechanism. The oil tank 1 is located inside the sealed cavity of the test chamber 4, which is a vacuum environment. The oil storage unit 2 is located below the oil tank 1 and is also located inside the sealed cavity of the test chamber 4. The oil tank 1 has gravitational potential energy relative to the oil storage unit 2. The oil tank 1 and the oil storage unit 2 are connected, and the oil in the oil tank 1 can be transported to the oil storage unit 2 under the action of gravity. The circulation mechanism includes an oil tank 31, an air circuit assembly, an oil supply assembly, and an oil return assembly. The air circuit assembly is located inside the oil storage unit. 2. The air circuit assembly connects the oil storage component 2 with the sealed cavity of the test chamber 4 to reduce the air pressure inside the oil storage component 2. The air circuit assembly can deliver gas into the oil storage component 2 to increase the air pressure inside the oil storage component 2. The oil return assembly is located between the oil storage component 2 and the oil tank 31. The oil return assembly drives the oil in the oil storage component 2 into the oil tank 31. The oil supply assembly is located between the oil pool component 1 and the oil tank 31. The oil supply assembly drives the oil in the oil tank 31 into the oil pool component 1 to complete the oil circulation. The oil pool component 1 is an oil baffle frame, and the oil storage component 2 is an oil storage tank.

[0048] like Figure 1 , Figure 3 and Figure 4As shown, the oil source system of the vibration testing device suitable for vacuum environment provided in this embodiment also includes a first connecting pipe 5 and a first switch 51. One end of the first connecting pipe 5 is connected to the oil tank 1, and the other end of the first connecting pipe 5 is connected to the oil storage 2. The first switch 51 is disposed on the first connecting pipe 5 and is used to control the connection and disconnection between the oil tank 1 and the oil storage 2. The oil storage tank is installed directly below the oil tank 1. The diameter of the first connecting pipe 5 is larger than the diameter of the connecting pipe. Under the premise of ensuring the installation space of the first switch 51, the length of the first connecting pipe 5 is minimized as much as possible, and the first connecting pipe 5 needs to reduce bends to reduce the resistance of the oil in the first connecting pipe 5, so that the oil in the oil tank 1 can smoothly and quickly enter the oil storage 2. The first switch 51 is a solenoid valve.

[0049] like Figure 1 As shown, the oil supply system of the vibration testing device suitable for a vacuum environment provided in this embodiment also includes a gas circuit assembly, which includes a first gas pipe 321, a second gas pipe 323, a second switch 324, a third switch 325, a first pressure gauge 326, and a gas supply component 322. One end of the first gas pipe 321 is connected to the oil storage component 2, and the other end of the first gas pipe 321 extends directly out of the oil storage component 2 and is connected to the sealed cavity of the test chamber 4. One end of the second gas pipe 323 is connected to the oil storage component 2, and the other end of the second gas pipe 323 extends out of the test chamber 4 and is connected to the gas supply component 322. Air from the gas supply component 322 is supplied through the second gas pipe 323. The oil storage unit 2 and the air supply unit 322 are air pumps. As an alternative implementation, the other end of the second air pipe 323 extends directly out of the test chamber 4 and communicates with the air. The second switch 324 is set on the first air pipe 321 and is used to control the connection and disconnection between the oil storage unit 2 and the sealed cavity of the test chamber 4. The third switch 325 is set on the second air pipe 323 and is used to control the connection and disconnection between the oil storage unit 2 and the air supply unit 322. The second switch 324 and the third switch 325 are both solenoid valves. The first pressure component is set on the second air pipe 323. The first pressure gauge 326 is a pneumatic component and is used to detect the air pressure entering the oil storage unit 2.

[0050] like Figure 1As shown, the oil supply system of the vibration testing device suitable for vacuum environment provided in this embodiment includes an oil supply pump 331, a second connecting pipe 332, a third connecting pipe 333, a fourth connecting pipe 334, an overflow valve 335, and a second pressure gauge 336. One end of the oil supply pump 331 is connected to the oil tank 31 through the second connecting pipe 332, and the other end of the oil supply pump 331 is connected to the oil sump 1 through the third connecting pipe 333. The third connecting pipe 333 has a liquid outlet. One end of the fourth connecting pipe 334 is connected to the liquid outlet on the third connecting pipe 333, and the other end of the fourth connecting pipe 334 is connected to the oil tank 31. The overflow valve 335 is installed on the fourth connecting pipe 334 to control the oil pressure input into the oil sump 1. The second pressure gauge 336 is installed on the third connecting pipe 333 to detect the pressure of the oil flowing through the third connecting pipe 333.

[0051] like Figure 1 As shown, the oil source system of the vibration testing device suitable for vacuum environment provided in this embodiment includes an oil return component comprising an oil return pump 341, a fifth connecting pipe 342, a sixth connecting pipe 343, a fourth switch 344, and a heat exchanger 345. One end of the oil return pump 341 is connected to the oil storage device 2 through the fifth connecting pipe 342, and the other end of the oil return pump 341 is connected to the oil tank 31 through the sixth connecting pipe 343. The fourth switch 344 is disposed on the fifth connecting pipe 342 and is used to control the on / off state of the oil storage device 2 and the oil tank 31. The heat exchanger 345 is disposed on the sixth connecting pipe 343 and is used to cool the oil. The fourth switch 344 is a solenoid valve.

[0052] like Figure 1 As shown, in the oil source system of the vibration testing device suitable for vacuum environment provided in this embodiment, filters 6 are respectively installed on the first connecting pipe 5, the second connecting pipe 332, the third connecting pipe 333, the fourth connecting pipe 334, the fifth connecting pipe 342 and the sixth connecting pipe 343.

[0053] like Figure 3 and Figure 4 As shown, the oil supply system of the vibration testing device suitable for a vacuum environment provided in this embodiment also includes a detection component, which includes a first detection element 71 and a second detection element 72. The first detection element 71 is disposed on the upper part of the inner wall of the oil reservoir 2 and is used to detect the highest level of oil in the oil reservoir 2. The second detection element 72 is disposed below the first detection element 71 and is used to detect the lowest level of oil in the oil reservoir 2. The installation position of the second detection element 72 is higher than the oil outlet of the oil reservoir 2; otherwise, under the action of the air supply element 322, gas will mix into the hydraulic oil, reducing the load on the guide rail, and in severe cases, causing scraping of the horizontal platform surface.

[0054] like Figure 5As shown in the figure, the oil source system of the vibration test device suitable for vacuum environment provided in this embodiment has an oil collection tank 8 at the bottom of the oil storage component 2 to increase the flow rate of the oil.

[0055] The oil supply system of the vibration testing device suitable for vacuum environment provided in this embodiment has a vacuum environment inside the test chamber 4. The oil pool 1 is located inside the test chamber 4, and the pressure inside the oil pool 1 is lower than the external atmospheric pressure. The oil in the oil tank 31 enters the oil pool 1 under the action of the oil supply component. The gas path component is in a state that connects the test chamber 4 and the oil storage component 2. That is, when the test chamber 4 and the oil storage component 2 are connected, the air pressure in the oil storage component 2 and the air pressure in the test chamber 4 will gradually become the same. The oil in the oil pool 1 enters the oil storage component 2 under the action of gravity. When the gas path component supplies gas to the oil storage component 2, the air pressure in the oil storage component 2 increases until the oil return component can work normally. The oil in the oil storage component 2 returns to the oil tank 31 through the oil return component to complete the circulation.

[0056] The oil supply system of the vibration testing device suitable for vacuum environments provided in this embodiment works on the following principle:

[0057] First, the oil supply assembly operates, delivering the oil from the oil tank 31 to the oil sump 1.

[0058] When the oil in the oil storage component 2 is at the second detection component 72, the first switch 51 and the second switch 324 are opened, and the third switch 325 and the fourth switch 344 are closed. The oil storage component 2 is connected to the sealed cavity of the test chamber 4 through the first air pipe 321. The gas in the oil storage component will enter the sealed cavity of the test chamber 4 and be drawn out of the test chamber 4 by the vacuum environment maintenance air pump of the test chamber 4. Since the first switch 51 is open and the oil pool component 1 is located above the oil storage component 2, the air pressure of the oil storage component 2 and the oil pool component 1 is equal. The oil in the oil pool component 1 enters the oil storage component 2 under the action of gravity.

[0059] When the oil level in the oil reservoir 2 is at the first detection element 71, the first switch 51 and the second switch 324 are closed, the third switch 325 is opened, and the fourth switch 344 is closed. The oil reservoir 2 is connected to the air supply element 322 through the second air pipe 323. The air supply element 322 continuously supplies nitrogen into the oil reservoir 2 until the air pressure in the oil reservoir 2 reaches the set value. Then, the third switch 325 is closed and the fourth switch 344 is opened. At this time, the air pressure in the oil reservoir 2 allows the return oil pump 341 to work normally. Thus, under the action of the return oil assembly, the oil in the oil reservoir 2 re-enters the oil tank 31 until the oil level in the oil reservoir 2 is at the second detection element 72. Then, the fourth switch 344 is closed and the second switch 324 is opened, so that the gas in the oil reservoir 2 is sent into the sealed cavity of the test chamber 4, thereby restoring the oil system to its initial state, and it can be circulated again.

[0060] Example 2

[0061] The oil source system of the vibration testing device suitable for vacuum environment provided in this embodiment differs from that provided in Embodiment 1 in that the oil storage component 2 is located outside the test chamber 4, the gas path assembly is located on the oil storage component 2, one end of the first gas pipe 321 is connected to the sealed cavity of the test chamber 4, the other end of the first gas pipe 321 is connected to the oil storage component 2, one end of the second gas pipe 323 is connected to the oil storage component 2, and the other end of the second gas pipe 323 is connected to the outside air. As an alternative implementation, the second connecting pipe 332 can be connected to the gas supply component 322, which is an air pump. One end of the gas supply component 322 is connected to the second gas pipe 323, and the other end of the gas supply component 322 is connected to a nitrogen source.

[0062] The oil source system of the vibration testing device suitable for vacuum environment provided in this embodiment has an oil storage component 2 located outside the sealed cavity of the test chamber 4, which increases the test area of ​​the test chamber 4 and can reduce the volume of the test chamber 4. The oil storage component 2 is located outside the sealed cavity, which can also reduce the influence of the test environment on the oil storage component 2.

[0063] Example 3

[0064] This embodiment provides an oil source system for a vibration testing device suitable for a vacuum environment. The difference between this system and the one provided in Embodiment 1 or Embodiment 2 is that the oil pool component 1 is directly connected to the oil tank 31 through the oil return assembly, and an air passage assembly is provided outside the oil tank 31.

[0065] This embodiment provides an oil source system for a vibration testing device suitable for a vacuum environment, which reduces the use of the oil storage component 2, thereby reducing costs and saving materials.

[0066] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An oil source system for a vibration testing apparatus suitable for a vacuum environment, characterized in that, include: Oil tank component (1), wherein the oil tank component (1) is disposed in the sealed cavity of the test chamber (4); An oil storage component (2) is disposed below the oil pool component (1). The oil pool component (1) is connected to the oil storage component (2). The medium in the oil pool component (1) is in an intermediate state of being transported toward the oil storage component (2) under the action of gravity. The circulation mechanism includes an oil tank (31), an air path assembly, an oil supply assembly, and an oil return assembly. The air path assembly is disposed on the oil storage component (2). The air path assembly has a depressurization state where the oil storage component (2) is connected to the sealed cavity of the test chamber (4) and a pressurization state where the driving gas is delivered toward the oil storage component (2). The oil supply assembly is disposed between the oil pool component (1) and the oil tank (31). The oil return assembly is disposed between the oil storage component (2) and the oil tank (31). The oil supply assembly has an oil supply state where the medium in the oil tank (31) is driven to be delivered toward the oil pool component (1). The oil return assembly has an oil return state where the medium in the oil pool component (1) is driven to be delivered toward the oil tank (31).

2. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 1, characterized in that, It also includes a first connecting pipe (5), one end of which is connected to the oil tank component (1), and the other end of which is connected to the oil storage component (2).

3. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 2, characterized in that, It also includes a first switch (51), which is disposed on the first connecting pipe (5) and is adapted to control the on / off state of the oil tank (1) and the oil storage (2).

4. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 3, characterized in that, The gas circuit assembly includes a first gas pipe (321) and a gas supply component (322). One end of the first gas pipe (321) is connected to the oil storage component (2), and the other end of the first gas pipe (321) is connected to the sealed cavity of the test chamber (4). One end of the gas supply component (322) is connected to the oil storage component (2), and the other end of the gas supply component (322) is connected to the outside.

5. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 4, characterized in that, The gas circuit assembly further includes a second gas pipe (323), a second switch (324), a third switch (325), and a first pressure gauge (326). The second gas pipe (323) is disposed between the oil storage component (2) and the air supply component (322). The second switch (324) is disposed on the first gas pipe (321) and is adapted to control the connection and disconnection between the oil storage component (2) and the sealed cavity of the test chamber (4). The third switch (325) is disposed on the second gas pipe (323) and is adapted to control the connection and disconnection between the oil storage component (2) and the air supply component (322). The first pressure gauge (326) is disposed on the second gas pipe (323) and is used to detect the air pressure flowing through the second gas pipe (323).

6. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 5, characterized in that, The oil supply assembly includes an oil supply pump (331), a second connecting pipe (332), and a third connecting pipe (333). One end of the oil supply pump (331) is connected to the oil tank (31) through the second connecting pipe (332), and the other end of the oil supply pump (331) is connected to the oil sump (1) through the third connecting pipe (333).

7. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 6, characterized in that, The oil supply assembly also includes a fourth connecting pipe (334), an overflow valve (335), and a second pressure gauge (336). The third connecting pipe (333) has an outlet. The fourth connecting pipe (334) is disposed between the outlet of the third connecting pipe (333) and the oil tank (31). The overflow valve (335) is disposed on the fourth connecting pipe (334). The second pressure gauge (336) is disposed on the third connecting pipe (333) to detect the pressure flowing through the third connecting pipe (333).

8. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 7, characterized in that, The oil return assembly includes an oil return pump (341), a fifth connecting pipe (342), and a sixth connecting pipe (343). One end of the oil return pump (341) is connected to the oil storage device (2) through the fifth connecting pipe (342), and the other end of the oil return pump (341) is connected to the oil tank (31) through the sixth connecting pipe (343).

9. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 8, characterized in that, The oil return assembly also includes a fourth switch (344) and a heat exchanger (345). The fourth switch (344) is disposed on the fifth connecting pipe (342) and is adapted to control the connection between the oil storage device (2) and the oil tank (31). The heat exchanger (345) is disposed on the sixth connecting pipe (343).

10. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 9, characterized in that, A filter (6) is provided on the first connecting pipe (5), the second connecting pipe (332), the third connecting pipe (333), the fourth connecting pipe (334), the fifth connecting pipe (342), and the sixth connecting pipe (343).

11. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 10, characterized in that, It also includes a detection component, which includes a first detection element (71) and a second detection element (72). The first detection element (71) is disposed in the oil storage component (2) and is suitable for detecting the highest height of the oil. The first detection element (72) is disposed below the first detection element (71) in the oil storage component (2) and is used to detect the lowest height of the oil.

12. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 11, characterized in that, It also includes an oil collection tank (8), which is located at the bottom of the oil pool.

13. The oil source system of the vibration testing apparatus suitable for a vacuum environment according to claim 12, characterized in that, The oil storage component can be installed outside the sealed cavity of the test chamber.

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