Rapid oil quantity adjusting device

Abstract

The utility model relates to a rapid oil quantity adjusting device which comprises an oil container (1) with a flow guide outlet (1.1). A transmission handle (2); the oil drainage nut adjusting device (3), the transmission handle (2) and the oil containing utensil (1) form a whole, rotation of the transmission handle (2) is converted into vertical translation of the oil drainage nut adjusting device (3) relative to the flow guide outlet (1.1) through meshing between the transmission handle (2) and the oil drainage nut adjusting device (3), and the speed of oil flowing into the flow guide outlet (1.1) from the oil containing utensil (1) is adjusted. According to the rapid oil quantity adjusting device, the pain point that lubricating oil adjustment can be carried out only after an engine lubricating oil system is cooled under the condition that the lubricating oil temperature is too high after an engine is started at present is improved, the requirement that a variable frequency generator (VFG) cooling test flight is preposed can be efficiently met, and a high-temperature weather window is effectively utilized.

Description

Technical Field

[0001] The utility model relates to an oil quantity rapid adjustment device. More specifically, the utility model relates to an oil quantity rapid adjustment device for the hot lubricating oil of a variable frequency generator (VFG) in a civil aircraft during the hot taxiing process after the engine runs at a high temperature state. Background Art

[0002] During the process of the VFG converting the shaft power provided by the power unit into electric power, a large amount of heat loss will be generated. In order to support the normal operation of the VFG, a corresponding cooling function needs to be set for it. The cooling oil circuit of the civil aircraft VFG is usually provided by the engine, mainly including a heat exchanger, pipelines, etc. After the lubricating oil cools and lubricates the structure inside the main generator, it flows out from the lubricating oil outlet of the main generator, flows into the air cooler through the lubricating oil pipeline, and is cooled under the action of the fan bypass air. Subsequently, the lubricating oil flows back to the main generator through the return oil pipeline, thus completing a working cycle.

[0003] If the VFG lubricating oil temperature exceeds 168±8°C and lasts for 2±0.25 seconds, the system will generate corresponding warning information and may cause irreversible damage to the accessories. In order to verify the cooling capacity of the VFG lubricating oil system under the harsh working conditions of an ambient temperature above 40°C and the VFG lubricating oil quantity adjusted to the minimum allowable lubricating oil quantity, it is often necessary to immediately adjust the lubricating oil after ground development / flying test to implement the VFG cooling test flight mission.

[0004] After the engine runs, the lubricating oil temperature is usually in the range of 120 to 150°C. In this state, manually adjusting the lubricating oil may cause the following problems:

[0005] 1. High-temperature hot oil may scald personnel;

[0006] 2. Loosening / releasing the oil outlet by fingers may result in inaccurate control of the oil discharge quantity;

[0007] 3. In case of strong wind during the oil discharge process, the lubricating oil may splash and pollute the apron;

[0008] 4. The time required for the lubricating oil to cool to a temperature suitable for manual adjustment is relatively long, resulting in potential safety hazards and inefficient processes during the VFG cooling test flight process, and missing the high-temperature weather window.

[0009] In order to solve the above problems, some solutions have been proposed in this technical field. For example, a lubricating oil drain magnetic plug body structure is disclosed in Chinese Patent CN114215645B submitted by AECC Shenyang Engine Research Institute on November 29, 2021.

[0010] The structure of the oil drain magnetic plug body includes: an oil drain magnetic plug; a magnetic plug housing; a magnetic plug skeleton disposed within the magnetic plug housing, one side of the magnetic plug skeleton having an opening for inserting the oil drain magnetic plug, and the other side having a screw portion protruding from the magnetic plug housing; a spring disposed between the magnetic plug housing and the magnetic plug skeleton; and a metal gasket mounted on the screw portion of the magnetic plug skeleton, the metal gasket being fixed to the screw portion by a lock nut; when the oil drain magnetic plug is pulled out from the oil drain magnetic plug body, the metal gasket fits against the mating surface of the magnetic plug housing under the elastic force of the spring, thereby achieving sealing.

[0011] However, the above patent adopts a magnetic plug body structure, which has a relatively complex structure and high installation accuracy requirements, and cannot overcome the above technical defects.

[0012] Therefore, there is an urgent need in the industry to design a device for quickly adjusting the amount of VFG hot lubricating oil during the test flight of civil aircraft. This device for quickly adjusting the amount of oil has a simple structure and convenient operation, and can improve the accuracy of oil amount adjustment and the utilization rate of high-temperature weather windows. Utility Model Content

[0013] One of the purposes of the present utility model is to provide a device for quickly adjusting the amount of VFG hot lubricating oil during the test flight of civil aircraft. This device for quickly adjusting the amount of oil has a simple structure and convenient operation, and can improve the accuracy of oil amount adjustment and the utilization rate of high-temperature weather windows.

[0014] Another purpose of the present utility model is to reduce the risk of scalding caused by high-temperature lubricating oil to people and the risk of polluting the apron.

[0015] The present utility model relates to a device for quickly adjusting the amount of oil, including: an oil-containing appliance with a diversion outlet; a transmission handle; and an oil drain nut adjustment device integrated with the transmission handle and the oil-containing appliance, converting the rotation of the transmission handle into a vertical translation of the oil drain nut adjustment device relative to the diversion outlet by the engagement between the transmission handle and the oil drain nut adjustment device, and adjusting the speed of oil flowing from the oil-containing appliance into the diversion outlet.

[0016] In the above technical solution, the term "integrated" indicates that the oil-containing appliance, the transmission handle, and the oil drain nut adjustment device can form a whole, for example, by the engagement between the helical gear transmission steering device of the transmission handle and the helical gear mating device of the oil drain nut adjustment device.

[0017] The term "rotation" means that the transmission handle makes a continuous rotation exceeding 360° or a reciprocating swing less than 360° around its own axis.

[0018] The term "vertical translation" means the movement of the oil drain nut adjustment device and the diversion outlet of the oil-containing appliance along the gravity direction, including the movement from bottom to top and from top to bottom.

[0019] According to the oil quantity rapid adjustment device of the present utility model, it improves the pain point that currently, after the engine starts, when the lubricating oil temperature is too high, the lubricating oil adjustment can only be carried out after the engine lubricating oil system cools down. It can efficiently meet the precondition of the VFG cooling test flight and effectively utilize the high-temperature weather window.

[0020] In a preferred embodiment, the drain nut adjustment device may include a coaxial plum blossom socket and a helical gear matching device.

[0021] In addition, the transmission handle includes a free end and an engaging end opposite to the free end, and the engaging end is provided with a helical gear transmission steering device to engage with the helical gear matching device.

[0022] Through the engagement between the helical gear matching device of the drain nut adjustment device and the helical gear transmission steering device of the transmission handle, the rotation of the transmission handle by the operator is converted into the vertical translation of the drain nut adjustment device relative to the diversion outlet, thereby realizing the tightening or loosening of the drain nut to adjust the speed of the oil flowing from the oil storage device into the diversion outlet.

[0023] In addition, this kind of matching can easily achieve precise control of the drained oil quantity.

[0024] More preferably, the free end may be provided with a ratchet-type directional rotation switch, and the ratchet-type directional rotation switch realizes the two-way speed adjustment and one-way rotation of the transmission handle by means of an internal circlip.

[0025] In this way, the ratchet-type one-way rotation design is realized through a safety circlip, achieving the two-way rapid adjustment and one-way rotation of the transmission handle.

[0026] In this embodiment, the ratchet-type directional rotation switch is radially movably installed at the free end, so that the operator can conveniently control the engagement between the helical gear matching device and the helical gear transmission steering device.

[0027] Most preferably, the helical gear transmission steering device of the transmission handle and the helical gear matching device of the drain nut adjustment device can be sealed inside a sealed box.

[0028] In this way, it can prevent the engagement structure from being inadvertently contaminated by fuel, and extend the service life and working time of the equipment.

[0029] In a preferred embodiment, the sealed box is square, and the plum blossom socket is located outside the sealed box for operation.

[0030] In yet another preferred embodiment, the oil storage device has a funnel shape, and the diversion outlet is arranged at the bottommost part of the funnel.

[0031] In this way, the funnel shape enables the oil to be stored more conveniently and completely in the oil-containing appliance, avoiding scalding of the test personnel caused by the disorderly flow of high-temperature hot lubricating oil.

[0032] Preferably, the diversion outlet is connected to an external hose. In this way, it is possible to avoid lubricating oil splashing caused by strong winds during the oil discharge process, thus preventing pollution of the apron and scalding of the test personnel.

[0033] The oil quantity rapid adjustment device according to the present utility model can obtain the following advantages:

[0034] 1. It improves the pain point that currently, after the engine is started and the lubricating oil temperature is too high, the lubricating oil adjustment can only be carried out after the engine lubricating oil system has cooled down, can efficiently meet the precondition of the VFG cooling test flight, and effectively utilizes the high-temperature weather window;

[0035] 2. It avoids scalding of the test personnel caused by the disorderly flow of high-temperature hot lubricating oil;

[0036] 3. It has a simple structure, is convenient to operate, and realizes precise control of the oil discharge quantity;

[0037] 4. It avoids lubricating oil splashing caused by strong winds during the oil discharge process, thus preventing pollution of the apron and scalding of the test personnel;

[0038] 5. The ratchet-type one-way rotation design is realized through a safety snap ring, achieving two-way rapid adjustment and one-way rotation of the transmission handle. Description of the Drawings

[0039] In order to further illustrate the structure and technical effects of the oil quantity rapid adjustment device according to the present utility model, the present utility model will be described in detail below in conjunction with the drawings and specific embodiments, where:

[0040] Figure 1 is a perspective view of the oil quantity rapid adjustment device according to the present utility model;

[0041] Figure 2 is Figure 1 the top view of the oil quantity rapid adjustment device shown in

[0042] Figure 3 is a side view of the free end of the transmission handle of the oil quantity rapid adjustment device, where the details of the installation of the ratchet-type directional rotation switch can be seen.

[0043] Reference Signs

[0044] 1 Oil-containing Appliance

[0045] 1.1 Diversion Outlet

[0046] 2 Transmission Handle

[0047] 2.1 Ratchet type directional rotation switch

[0048] 2.2 Helical gear transmission steering device

[0049] 3 Oil drain nut adjusting device

[0050] 3.1 Flange socket

[0051] 3.2 Helical gear matching device

[0052] 3.3 Sealing box Detailed implementation manners

[0053] The following combines the accompanying drawings to illustrate the structure, working principle and technical effects of the oil quantity rapid adjustment device according to the present utility model.

[0054] It should be clear that the embodiments described in this specification only cover a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments described in the specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0055] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model.

[0056] For example, the terms "including" and "having" and any variations thereof in the specification, claims and above drawings description of the present utility model are intended to cover non-exclusive inclusion. The singular forms of "a", "the" and "said" used in the embodiments of the present utility model and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0057] Figure 1 and 2 are respectively the perspective view and top view of the oil quantity rapid adjustment device.

[0058] As Figure 1 shown, the oil quantity rapid adjustment device includes: an oil storage container 1 with a diversion outlet 1.1; a transmission handle 2; and an oil drain nut adjusting device 3 integrated with the transmission handle 2 and the oil storage container 1. The rotation of the transmission handle 2 is converted into the vertical translation of the oil drain nut adjusting device 3 relative to the diversion outlet 1.1 through the engagement between the transmission handle 2 and the oil drain nut adjusting device 3, and the speed of the oil flowing from the oil storage container 1 into the diversion outlet 1.1 is adjusted.

[0059] Please continue to refer to Figure 2, the oil drain nut adjusting device 3 includes a coaxial plum blossom socket 3.1 and a helical gear matching device 3.2. The transmission handle 2 includes a free end and an engaging end opposite to the free end, and a helical gear transmission steering device 2.2 is provided at the engaging end to engage with the helical gear matching device 3.2.

[0060] Through the engagement between the helical gear matching device 3.2 of the oil drain nut adjusting device 3 and the helical gear transmission steering device 2.2 of the transmission handle 2, the rotation of the transmission handle 2 by the operator is converted into the vertical translation of the oil drain nut adjusting device 3 relative to the diversion outlet 1.1, thereby realizing the tightening or loosening of the oil drain nut to adjust the speed of oil flowing from the oil storage appliance into the diversion outlet 1.1.

[0061] The above-mentioned oil quantity rapid adjustment device has a simple structure and is convenient to operate, and can easily realize the precise control of the oil discharge quantity.

[0062] In this embodiment, although the helical gear matching device 3.2 and the helical gear transmission steering device 2.2 are used to realize the linkage between the oil drain nut adjusting device 3 and the transmission handle 2, for those skilled in the art, it should be understood that a similar structure can also be used to realize the linkage between the oil drain nut adjusting device 3 and the transmission handle 2, such as a turbine-worm match, etc. These variants should also fall within the protection scope of the present utility model.

[0063] During the entire oil drain process, the operator holds the transmission handle 2 with one hand and operates the driving rod of the helical gear transmission steering device 2.2 with the other hand to loosen the oil drain nut, guide the hot lubricating oil, and realize the discharge of the hot lubricating oil by controlling the vertical translation of the oil drain nut adjusting device 3 relative to the diversion outlet 1.1.

[0064] The helical gear transmission steering device 2.2 of the transmission handle 2 and the helical gear matching device 3.2 of the oil drain nut adjusting device 3 are sealed inside a square seal box 3.3, while the plum blossom socket 3.1 is located outside the square seal box 3.3 for operation. In this way, it is possible to prevent the meshing structure from being inadvertently contaminated by fuel, and to extend the service life and working time of the equipment.

[0065] The oil storage appliance 1 has a funnel shape, and the diversion outlet 1.1 is arranged at the bottom of the funnel and can be connected to an external hose. The funnel shape enables the oil to be stored more conveniently and completely in the oil storage appliance, avoiding scalding of the test personnel caused by the disorderly flow of high-temperature hot lubricating oil. The purpose of connecting to the external hose is to avoid splashing of the lubricating oil caused by strong wind during the oil drain process, thereby polluting the apron and scalding the test personnel.

[0066] Of course, the container 1 can also adopt other appropriate shapes to facilitate the oil to gather near the diversion outlet 1.1 and enter the external hose through the diversion outlet 1.1. Such variations should be understandable to those skilled in the art and should also fall within the protection scope of the present utility model.

[0067] As Figure 3 shown, a ratchet-type directional rotation switch 2.1 is provided at the free end of the transmission handle 2. The ratchet-type directional rotation switch 2.1 realizes the two-way speed adjustment and one-way rotation of the transmission handle 1 by means of an internal circlip. The ratchet-type directional rotation switch 2.1 is radially movably installed at the free end, enabling the operator to conveniently control the engagement between the helical gear matching device 2.2 and the helical gear transmission steering device 3.2, and quickly achieve the purpose of tightening / loosening the drain nut.

[0068] Although the structure, working principle and technical effects of the oil quantity rapid adjustment device according to the present utility model have been described above in combination with the preferred embodiments and the drawings, those of ordinary skill in the art in this technical field should recognize that the above examples are only for illustration and cannot be used as a limitation to the present utility model. Therefore, modifications and variations can be made to the present utility model within the scope of the substantial spirit of the claims, and these modifications and variations will all fall within the scope required by the claims of the present utility model.

Claims

1. A rapid oil quantity adjustment device, characterized in that: include: An oil container (1) with a diversion outlet (1.1); Transmission handle (2); as well as an oil drain nut adjusting device (3) integrally formed with the transmission handle (2) and the oil container (1), The engagement between the transmission handle (2) and the oil drain nut adjusting device (3) is utilized to convert the rotation of the transmission handle (2) into a vertical translation of the oil drain nut adjusting device (3) relative to the diversion outlet (1.1), thereby adjusting the speed at which oil flows from the oil containing device (1) into the diversion outlet (1.1).

2. The oil quantity quick adjustment device according to claim 1, characterized in that: The oil drain nut adjustment device (3) comprises a coaxially arranged plum blossom sleeve (3.1) and a helical gear matching device (3.2).

3. The oil quantity quick adjustment device according to claim 2, characterized in that: The transmission handle (2) comprises a free end and an engagement end opposite to the free end, and the engagement end is provided with a helical gear transmission steering device (2.2) to engage with the helical gear matching device (3.2).

4. The oil quantity rapid adjustment device according to claim 3, characterized in that: The free end is provided with a ratchet-type directional rotation switch (2.1), and the ratchet-type directional rotation switch (2.1) realizes bidirectional speed adjustment and unidirectional rotation of the transmission handle (2) by means of an internal retaining spring.

5. The oil quantity rapid adjustment device according to claim 4, characterized in that: The ratchet type directional rotation switch (2.1) is mounted at the free end in a radially movably manner.

6. The oil quantity rapid adjustment device according to claim 3, characterized in that: The helical gear transmission steering device (2.2) of the transmission handle (2) and the helical gear matching device (3.2) of the oil drain nut adjustment device (3) are sealed inside a sealing box (3.3).

7. The oil quantity rapid adjustment device according to claim 6, characterized in that: The sealing box (3.3) is square.

8. The oil quantity rapid adjustment device according to claim 6, characterized in that: The plum blossom socket (3.1) is located outside the sealing box (3.3) for operation purposes.

9. The oil quantity rapid adjustment device according to claim 1, characterized in that: The oil container (1) has a funnel shape, and the diversion outlet (1.1) is arranged at the bottom of the funnel.

10. The oil quantity rapid adjustment device according to claim 9, characterized in that: The flow guide outlet (1.1) is connected to an external hose.

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