High-temperature oil tank for attitude simulation test system of lubricating oil system

Abstract

The utility model discloses a high-temperature oil tank for a lubricating oil system attitude simulation test system. An oil passage and a ventilation passage which are isolated from each other are arranged in the rotating shaft, the oil passage is connected with a lubricating oil pump oil suction port of the lubricating oil system attitude simulation test system, and the ventilation passage is communicated with the atmosphere; a ventilation shaft sleeve and an oil through shaft sleeve are sleeved on the rotating shaft in the oil tank shell along the axial direction; the ventilation shaft sleeve is connected with a floating ball through a ventilation hose, a ventilation hole is formed in the top end of the floating ball, and an inner cavity of the oil tank shell communicates with the ventilation channel through the ventilation hole, the ventilation hose and the ventilation shaft sleeve. The ventilation shaft sleeve can rotate around the rotating shaft and is provided with a counterweight component A at the symmetrical end of the ventilation hose; a limiting frame is fixed between the floating ball and the ventilation shaft sleeve; the oil passing shaft sleeve can rotate around the rotating shaft, an oil passing hose is arranged on the oil passing shaft sleeve, a balance weight assembly B is arranged at the end of the oil passing hose, and the inner cavity of the oil tank shell communicates with the oil passing channel sequentially through the oil passing hose and the oil passing shaft sleeve. According to the utility model, the equipment cost and the risk of system design can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to an aircraft flight attitude simulation technical field, especially a high temperature oil tank for a lubricating oil system attitude simulation test system. BACKGROUND

[0002] The lubricating oil pump of the aircraft lubricating oil system needs to be simulated on the ground to detect the oil absorption and oil supply reliability.

[0003] In the design of the lubricating oil system attitude simulation system, the entire system equipment is placed on a variable attitude test platform, and the attitude of the test piece is changed to simulate and test the oil supply and return conditions of the test piece under each attitude condition, so as to verify the reliability of the system design, improve the reliability and performance of the equipment from the design source, reduce the equipment cost, and reduce the risk of system design. The oil absorption reliability and oil tank air inlet reliability of the lubricating oil pump under each attitude (pitching and rolling) and high temperature are the basic conditions for simulating and testing the oil supply and return conditions of the lubricating oil system under each attitude condition. If it is unreliable, the entire system verification cannot be performed. Therefore, it is of great significance to verify the oil absorption reliability of the lubricating oil pump and the oil tank air inlet reliability. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a high temperature oil tank for a lubricating oil system attitude simulation test system.

[0005] The utility model can reduce the equipment cost and the risk of system design.

[0006] The technical scheme of the utility model is: a high temperature oil tank for a lubricating oil system attitude simulation test system, comprising a hollow rotating shaft, an oil tank shell body is rotatably connected to the rotating shaft, a through oil passage and a through air passage are arranged in the rotating shaft and are isolated from each other, the through oil passage is connected to the oil suction port of the lubricating oil pump of the lubricating oil system attitude simulation test system, and the through air passage is in communication with the atmosphere; an air passage sleeve and an oil passage sleeve are axially sleeved on the rotating shaft in the oil tank shell body; the air passage sleeve is connected to a floating ball through an air hose, the top end of the floating ball is provided with an air hole, and the inner cavity of the oil tank shell body is in communication with the through air passage through the air hole, the air hose and the air passage sleeve; the air passage sleeve can rotate around the rotating shaft, and a counterweight assembly A is arranged on the symmetric end of the air hose; a limiting frame is fixed between the floating ball and the air passage sleeve; the oil passage sleeve can rotate around the rotating shaft, an oil hose is arranged on the oil passage sleeve, a counterweight assembly B is arranged at the end of the oil hose, and the inner cavity of the oil tank shell body is in communication with the through oil passage through the oil hose and the oil passage sleeve in sequence.

[0007] In the aforementioned high temperature oil tank for a lubricating oil system attitude simulation test system, the oil hose is a polytetrafluoroethylene hose.

[0008] In the aforementioned high temperature oil tank for a lubricating oil system attitude simulation test system, the polytetrafluoroethylene hose is a polytetrafluoroethylene bellows.

[0009] The oil passage hose in the high-temperature oil tank of the attitude simulation test system for the lubricating oil system has a passage diameter of 20 mm.

[0010] The high-temperature oil tank of the attitude simulation test system for the lubricating oil system has an oil film seal between the air passage sleeve, the oil passage sleeve and the rotating shaft.

[0011] The high-temperature oil tank of the attitude simulation test system for the lubricating oil system further has a liquid level meter on the tank shell for detecting the liquid level of the oil.

[0012] The high-temperature lubricating oil test system for the aircraft flight attitude simulation in the aviation ground support equipment can work normally and reliably under the conditions of the maximum angular velocity of 6° / s, the oil suction and the oil tank air intake, the maximum pitch of ±180° and the roll of ±110°, realizes the simulation and test verification of the lubricating oil system under the conditions of the supply and return of the oil under different attitudes, effectively reduces the equipment cost and the risk of system design. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a structural schematic diagram of the utility model;

[0014] Fig. 2 is a three-dimensional schematic diagram of the utility model;

[0015] Fig. 3 is a schematic diagram of internal components. DETAILED DESCRIPTION

[0016] The utility model will be further described below in combination with the drawings and examples, but it is not as the basis for limiting the utility model.

[0017] Example 1. A high-temperature oil tank for a lubricating oil system attitude simulation test system, referring to Figs. 1-3, including a hollow rotating shaft 1, the rotating shaft 1 is rotatably connected to the oil tank shell 2, the rotating shaft 1 is provided with an oil passage 4 and a ventilation passage 5 isolated from each other, the oil passage 4 is connected to the oil pump suction port of the lubricating oil system attitude simulation test system, and the ventilation passage 5 is connected to the atmosphere; the rotating shaft 1 in the oil tank shell 2 is axially sleeved with a ventilation sleeve 6 and an oil sleeve 13; the ventilation sleeve 6 is connected to the float 8 through a ventilation hose 7, and the top of the float 8 is provided with a ventilation hole 9, and the inner cavity of the oil tank shell 2 is vented through this. The vent hole 9, the vent hose 7, and the vent sleeve 6 are connected to the vent channel 5; the vent sleeve 6 can rotate around the rotating shaft 1, and the vent sleeve 6 is provided with a counterweight assembly A10 at the symmetrical end of the vent hose 7; a limit frame 11 is fixed between the float 8 and the vent sleeve 6; the oil sleeve 13 can rotate around the rotating shaft 1, and an oil hose 12 is provided on the oil sleeve 13, and a counterweight assembly B14 is provided at the end of the oil hose 12. The inner cavity of the oil tank housing 2 is connected to the oil channel 4 through the oil hose 12 and the oil sleeve 13 in sequence.

[0018] The aforementioned oil hose 12 is a polytetrafluoroethylene hose.

[0019] The aforementioned polytetrafluoroethylene hose is a polytetrafluoroethylene bellows.

[0020] The oil hose 12 has a diameter of 20 mm.

[0021] The ventilation sleeve 6, the oil-through sleeve 13 and the rotating shaft 1 are sealed with an oil film.

[0022] The aforementioned oil tank housing 2 is also provided with a level gauge 3 for detecting the oil level.

[0023] Simulation process: When the aircraft fuel tank is in pitch and roll states, the vent sleeve 6 and the oil sleeve 13 both rotate around the rotating shaft 1. Under the action of the counterweight assembly A10, the float 8 floats on the oil surface. At the same time, the limit frame 11 prevents the float 8 from suddenly plunging into the oil due to swinging, thereby ensuring that the external atmosphere is connected with the inner cavity of the fuel tank shell 2 through the vent channel 5; under the action of the counterweight assembly B14, it is ensured that the pipe mouth of the oil hose 12 is always below the oil surface, thereby ensuring that the lubricating oil pump can suck oil in real time.

[0024] Because oil can reach temperatures between 120°C and 160°C, a polytetrafluoroethylene (PTFE) bellows is used as the oil hose 12. This not only adapts to high-temperature environments but also prevents the hose 12 from being squeezed and flattened by negative suction pressure, which could hinder oil flow. Furthermore, at high temperatures, the vent hose 7 softens sufficiently to support the float 8. Therefore, a retaining bracket 11 is provided to support the float 8, effectively ensuring that the vent hole 9 of the float 8 remains connected to the interior of the tank housing 2 and the external atmosphere.

Claims

1. A high-temperature oil tank for a lubricating oil system attitude simulation test system, characterized in that: The invention comprises a hollow rotating shaft (1), the rotating shaft (1) is rotatably connected to an oil tank housing (2), and an oil passage (4) and a ventilation passage (5) isolated from each other are provided in the rotating shaft (1), the oil passage (4) is connected to the oil suction port of the lubricating oil pump of the lubricating oil system attitude simulation test system, and the ventilation passage (5) is communicated with the atmosphere; the rotating shaft (1) in the oil tank housing (2) is axially sleeved with a ventilation shaft sleeve (6) and an oil passage shaft sleeve (13); the ventilation shaft sleeve (6) is connected to a float (8) via a ventilation hose (7), and a ventilation hole (9) is provided at the top of the float (8), and the inner cavity of the oil tank housing (2) is ventilated via the ventilation hole (9). 9), the ventilation hose (7) and the ventilation sleeve (6) are connected to the ventilation channel (5); the ventilation sleeve (6) can rotate around the rotation axis (1), and the ventilation sleeve (6) is provided with a counterweight assembly A (10) at the symmetrical end of the ventilation hose (7); a limiting frame (11) is fixed between the float (8) and the ventilation sleeve (6); the oil sleeve (13) can rotate around the rotation axis (1), and an oil hose (12) is provided on the oil sleeve (13), and a counterweight assembly B (14) is provided at the end of the oil hose (12); the inner cavity of the oil tank housing (2) is connected to the oil channel (4) through the oil hose (12) and the oil sleeve (13) in sequence.

2. The high-temperature oil tank for the lubricating oil system attitude simulation test system according to claim 1 is characterized in that: The oil hose (12) is a polytetrafluoroethylene hose.

3. The high-temperature oil tank for the lubricating oil system attitude simulation test system according to claim 2 is characterized in that: PTFE hose is a PTFE bellows.

4. The high-temperature oil tank for the lubricating oil system attitude simulation test system according to claim 1 is characterized in that: The diameter of the oil hose (12) is 20 mm.

5. The high-temperature oil tank for the lubricating oil system attitude simulation test system according to claim 1 is characterized in that: An oil film seal is formed between the ventilation sleeve (6), the oil-through sleeve (13) and the rotating shaft (1).

6. The high-temperature oil tank for the lubricating oil system attitude simulation test system according to claim 1, characterized in that: The oil tank housing (2) is also provided with a liquid level meter (3) for detecting the oil level.

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