Engine oil needle oil injection quantity detection device

Abstract

The utility model relates to the technical field of engine detection, and provides an engine oil needle oil injection quantity detection device which comprises an upper flange provided with a plurality of first through holes; the lower flange is located below the upper flange, a gap is formed between the upper flange and the lower flange, the lower flange is provided with a plurality of second through holes, and the second through holes are coaxial with the first through holes; the two ends of the observation pipe are arranged in the first through hole and the second through hole correspondingly and communicate with the first through hole and the second through hole correspondingly, and the observation pipe is used for containing oil sprayed out of the oil needle; the sealing plate lifts relative to the lower flange and is located on the side, away from the upper flange, of the lower flange, and after the sealing plate lifts, the second through hole is shielded or opened. By means of the technical scheme, the problem that in the prior art, fuel oil in an observation pipe is inconvenient to discharge is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine detection, and in particular to a device for detecting the fuel injection amount of an engine oil needle. Background Art

[0002] The oil supply of the oil ring and oil needle of the aviation turbojet engine is related to the combustion uniformity of the engine, affecting its power performance and thrust. If the injection balance of its mechanism is not tested, the qualified rate and production efficiency will be reduced, resulting in an increase in the overall labor and material costs. It is crucial to inspect each component for good condition for assembly.

[0003] In the prior art, the fuel injection amount detection device for the fuel needle of the aviation turbojet engine can verify the fuel injection amount of the fuel needle through a pipeline with a scale and transparent material. However, after the detection is completed, the fuel in the observation tube cannot be discharged directly, and the remaining fuel needs to be poured out, which is inconvenient to use. Utility Model Content

[0004] The utility model provides an engine oil needle fuel injection quantity detection device, which solves the problem of inconvenience in fuel discharge in an observation pipe in the related technology.

[0005] The technical solution of the utility model is as follows:

[0006] An engine oil needle injection amount detection device, comprising:

[0007] An upper flange, wherein the upper flange has a plurality of first through holes;

[0008] A lower flange is located below the upper flange, with a gap between the upper flange and the lower flange, and the lower flange has a plurality of second through holes, and the second through holes are coaxial with the first through holes;

[0009] An observation tube, both ends of which are respectively arranged in the first through hole and the second through hole, the two ends of the observation tube are respectively connected with the first through hole and the second through hole, and the observation tube is used to contain the oil sprayed by the oil needle;

[0010] The sealing plate is lifted relative to the lower flange, and is located on the side of the lower flange away from the upper flange. After the sealing plate is lifted, it blocks or opens the second through hole.

[0011] Optionally, the lower flange has a third through hole, the bottom of the third through hole has a limiting ring, and a plurality of the second through holes are distributed along the circumference of the third through hole, and further includes:

[0012] A piston is arranged in the third through hole for lifting and lowering. After the piston is lifted and lowered, it moves away from or approaches the limiting ring. After the piston descends, it abuts against the limiting ring. The limiting ring is used to limit the descending distance of the piston.

[0013] A threaded rod having a first end and a second end, wherein the first end is slidably disposed in the third through hole, and the second end is located at a side of the lower flange away from the upper flange, and the sealing plate is lifted and lowered on the threaded rod;

[0014] The first locking nut is threadedly connected to the threaded rod, the sealing plate is located above the first locking nut, and the first locking nut abuts against the bottom of the sealing plate, and the first locking nut is used to push the sealing plate to abut against the bottom of the lower flange.

[0015] Optionally, it also includes:

[0016] An elastic member, with two ends respectively arranged on the bottom of the piston and the limiting ring, the elastic member is used to provide a force for the piston to move away from the limiting ring, and the threaded rod passes through the inside of the elastic member.

[0017] Optionally, a boss is provided at the center of the lower flange, and the third through hole passes through the boss.

[0018] Optionally, the piston slides in a sealed manner with the third through hole, further comprising:

[0019] A cover plate is sealingly arranged on the top of the third through hole, the cover plate is used to cover the third through hole, and the cover plate has an inlet, which is communicated with the space between the cover plate and the piston.

[0020] Optionally, it also includes:

[0021] There are a plurality of screw rods, one end of each of the screw rods is disposed on the boss, the axis of the screw rod is parallel to the axis of the third through hole, and the screw rods are spaced apart along the circumference of the third through hole;

[0022] There are a plurality of second locking nuts, all of which are threadedly connected to the screw rod, and the upper flange and the cover plate are respectively arranged on the screw rod through the second locking nuts.

[0023] Optionally, the first through hole has a first section and a second section, the first section is closer to the lower flange than the second section, the diameter of the first section is larger than the diameter of the second section, the diameter of the second section gradually increases in a direction away from the first section, and the second through hole has a third section and a fourth section, the third section is closer to the upper flange than the fourth section, and the diameter of the third section is larger than the diameter of the fourth section.

[0024] Optionally, the observation tube is a glass tube, and the observation tube has scale lines.

[0025] Optionally, the elastic member is a butterfly-shaped spring piece.

[0026] Optionally, it also includes:

[0027] A pipe joint is arranged at the inlet, and the pipe joint is used to connect an external pipeline.

[0028] The working principle and beneficial effects of the utility model are:

[0029] In the utility model, the upper flange is provided with a plurality of first through holes, and the lower flange is located below the upper flange and is provided with a second through hole coaxial therewith. The two ends of the observation tube are respectively embedded in the first through hole and the second through hole, and are connected to the two. The oil needle of the engine sprays fuel into the observation tube from the first through hole of the upper flange, and the fuel stays in the observation tube. The inspection personnel can observe the injection amount of the engine oil needle through the observation tube. By setting up multiple observation tubes, the observation tube can observe the injection amount of different oil needles at the same time and compare them, so that the injection amount of each oil needle can be compared more intuitively.

[0030] The lifting and lowering of the sealing plate can cover or open the second through hole on the lower flange as needed. When the sealing plate covers the second through hole, the fuel can stay in the observation tube, which is convenient for the inspection personnel to observe and record. After the inspection is completed, the inspection personnel only need to lower the sealing plate to open the second through hole, and the fuel in the observation tube can be discharged from the second through hole under the action of gravity, which is convenient for the next set of inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0032] Figure 1 It is a schematic diagram of the structure of the utility model;

[0033] Figure 2 It is a cross-sectional view of the utility model.

[0034] In the figure: 100, upper flange, 110, first through hole, 200, lower flange, 210, second through hole, 300, observation tube, 400, sealing plate, 202, third through hole, 203, limiting ring, 500, piston, 600, threaded rod, 610, first end, 620, second end, 700, first locking nut, 800, elastic member, 204, boss, 900, cover plate, 901, inlet, 1000, screw rod, 1100, second locking nut, 111, first section, 112, second section, 211, third section, 212, fourth section, 1200, pipe joint. DETAILED DESCRIPTION

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0036] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0037] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0038] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] Reference Figure 1~Figure 2 The utility model proposes an engine oil needle injection amount detection device, including an upper flange 100 with a plurality of first through holes 110; a lower flange 200 is located below the upper flange 100, there is a gap between the upper flange 100 and the lower flange 200, the lower flange 200 has a plurality of second through holes 210, and the second through holes 210 are coaxial with the first through holes 110; two ends of an observation tube 300 are respectively arranged in the first through holes 110 and the second through holes 210, the two ends of the observation tube 300 are respectively connected with the first through holes 110 and the second through holes 210, and the observation tube 300 is used to hold the oil sprayed by the oil needle; a sealing plate 400 is arranged to be lifted relative to the lower flange 200, the sealing plate 400 is located on the side of the lower flange 200 away from the upper flange 100, and after the sealing plate 400 is lifted, the second through holes 210 are blocked or opened.

[0040] In this embodiment, the upper flange 100 is provided with a plurality of first through holes 110, and the lower flange 200 is located below the upper flange 100 and is provided with a second through hole 210 coaxial therewith. The two ends of the observation tube 300 are respectively embedded in the first through hole 110 and the second through hole 210, and are connected to the two. The oil needle of the engine sprays fuel into the observation tube 300 from the first through hole 110 of the upper flange 100, and the fuel stays in the observation tube 300. The inspection personnel can observe the injection amount of the engine oil needle through the observation tube 300. By setting up multiple observation tubes 300, the observation tube 300 can simultaneously observe the injection amount of different oil needles and compare them, so that the injection amount of each oil needle can be compared more intuitively.

[0041] The lifting and lowering of the sealing plate 400 can cover or open the second through hole 210 on the lower flange 200 as needed. When the sealing plate 400 covers the second through hole 210, the fuel can stay in the observation tube 300, which is convenient for the inspection personnel to observe and record. After the inspection is completed, the inspection personnel only need to lower the sealing plate 400 to open the second through hole 210, and the fuel in the observation tube 300 can be discharged from the second through hole 210 under the action of gravity, which is convenient for the next set of inspections.

[0042] Further, the lower flange 200 has a third through hole 202, a limiting ring 203 is provided at the bottom of the third through hole 202, a plurality of second through holes 210 are distributed along the circumference of the third through hole 202, and also includes a piston 500 that is lifted and lowered and arranged in the third through hole 202. After the piston 500 is lifted and lowered, it moves away from or approaches the limiting ring 203. After the piston 500 descends, it abuts against the limiting ring 203. The limiting ring 203 is used to limit the distance the piston 500 descends; the threaded rod 600 has a first end 610 and a second end 611. Two ends 620, the first end 610 is slidably set in the third through hole 202, the second end 620 is located on the side of the lower flange 200 away from the upper flange 100, and the sealing plate 400 is lifted and lowered on the threaded rod 600; the first locking nut 700 is threadedly connected to the threaded rod 600, the sealing plate 400 is located above the first locking nut 700, and the first locking nut 700 is abutted against the bottom of the sealing plate 400, and the first locking nut 700 is used to push the sealing plate 400 to abut the bottom of the lower flange 200.

[0043] In this embodiment, the piston 500 can slide freely in the third through hole 202. When the piston 500 moves to the bottom of the third through hole 202, it will abut against the limit ring 203 and stop. The function of the limit ring 203 is to limit the downward limit position of the piston 500 to prevent it from moving downward excessively. The first end of the threaded rod 600 is fixed to the position of the piston 500 close to the limit ring 203, and the second end 620 thereof passes through the third through hole 202 and extends outside the lower flange 200.

[0044] The sealing plate 400 can move up and down along the threaded rod 600. When the sealing plate 400 moves upward until it contacts the bottom of the lower flange 200, it will close the second through hole 210 to prevent the fuel in the observation tube 300 from flowing out. Conversely, the sealing plate 400 moves downward to open the second through hole 210 to allow the fuel to pass through.

[0045] The first locking nut 700 is connected to the threaded rod 600 through a thread. By rotating the first locking nut 700, the sealing plate 400 can be driven to move upward until the sealing plate 400 is close to the bottom of the lower flange 200, thereby effectively closing the second through hole 210. At this time, the limit ring 203 supports the piston 500 to prevent the piston 500 from moving further as the sealing plate 400 moves upward. Therefore, the first locking nut 700 and the piston 500 work together to ensure that the sealing plate 400 is stably fixed in a position abutting against the bottom of the lower flange 200. The opening and closing of the second through hole 210 is effectively controlled by the first locking nut 700, thereby accurately regulating the release process of the fuel in the observation tube 300.

[0046] The axis of the third through hole 202 is colinear with the axis of the threaded rod 600, and the second through holes 210 are distributed along the circumference of the third through hole 202. This allows the sealing plate 400 to select a shape with more uniform force, such as a positive direction shape or a circle, while ensuring that the second through holes 210 can be completely closed.

[0047] Furthermore, it also includes an elastic member 800, with two ends respectively arranged on the bottom of the piston 500 and the limiting ring 203, the elastic member 800 is used to provide a force to keep the piston 500 away from the limiting ring 203, and the threaded rod 600 passes through the inside of the elastic member 800.

[0048] In this embodiment, the elastic member 800 not only serves as a connection member between the piston 500 and the stop ring 203, but also plays a vital role in dynamic support and recovery. When the first locking nut 700 rotates to push the sealing plate 400 to be in close contact with the bottom of the lower flange 200, the elastic member 800 will be compressed and play a buffering role, which can prevent the first locking nut 700 from being tightened too much and damaging the sealing plate 400 or the piston 500.

[0049] By using the elastic member 800, the operator can more easily control the opening and closing of the second through hole 210. When the second through hole 210 needs to be opened to drain the observation tube 300, the piston 500 only needs to be slightly pushed manually or with the help of a tool to slide the piston 500 toward the limit ring 203. The elastic member 800 continues to be compressed, so that the sealing plate 400 can move downward and leave the bottom of the lower flange 200, thereby opening the second through hole 210. This operation eliminates the complicated locking or unlocking steps that may be required in the traditional design, making the operation process more direct and fast.

[0050] The automatic recovery feature of the elastic member 800 ensures that the system can reliably return to the initial sealing state after operation, reducing the error of human operation and improving the stability and repeatability of the system. Each movement of the sealing plate 400 can accurately return to the position of sealing with the bottom of the lower flange 200, maintaining the rigor of the system and the consistency of the test results.

[0051] Furthermore, a boss 204 is provided at the center of the lower flange 200 , and the third through hole 202 passes through the boss 204 .

[0052] In this embodiment, the lower flange 200 has a boss 204 at its center, and the third through hole 202 passes through the boss 204. While ensuring that the length of the third through hole 202 meets the requirements, the thickness of other positions of the lower flange 200 is reduced as much as possible to reduce the weight of the overall device.

[0053] Furthermore, the piston 500 slides in a sealed manner with the third through hole 202 and also includes a cover plate 900, which is sealed and arranged on the top of the third through hole 202. The cover plate 900 is used to cover the third through hole 202. The cover plate 900 has an inlet 901, which is connected to the space between the cover plate 900 and the piston 500.

[0054] In this embodiment, the piston 500 slides in a sealed manner with the third through hole 202, and the cover plate 900 closes the top of the third through hole 202, so that a closed space is formed between the cover plate 900, the piston 500 and the inner wall of the third through hole 202, and hydraulic oil or high-pressure air can be filled into the closed space through the inlet 901, so that the hydraulic oil or high-pressure air pushes the piston 500 to move in the direction of the limit ring 203, thereby achieving the purpose of the sealing plate 400 opening the second through hole 210. When the sealing plate 400 needs to re-block the second through hole 210, it is only necessary to extract the hydraulic oil or high-pressure air in the closed space.

[0055] Using oil pressure as the driving source not only reduces mechanical transmission components and simplifies the structure, but also improves the convenience of operation and the response speed of the system. At the same time, it is also conducive to remote control and automated operation.

[0056] Furthermore, it also includes a screw rod 1000, which has a plurality of them, one end of each of the screw rods 1000 is arranged on the boss 204, the axis of the screw rod 1000 is parallel to the axis of the third through hole 202, and the plurality of screw rods 1000 are distributed at intervals along the circumference of the third through hole 202; there are a plurality of second locking nuts 1100, which are all threadedly connected to the screw rod 1000, and the upper flange 100 and the cover plate 900 are respectively arranged on the screw rod 1000 through the second locking nuts 1100.

[0057] In this embodiment, a plurality of screws 1000 are arranged on the boss 204 of the lower flange 200, the axes of the screws 1000 are parallel to the axes of the third through holes 202, and are spaced apart along the circumference of the third through holes 202. This not only ensures the symmetry and balance of the structure, but also provides a stable support point for the installation of the upper flange 100 and the cover plate 900. The use of the screws 1000 increases the rigidity of the entire device, especially in a working environment subject to high pressure or vibration, and helps to maintain the relative position stability of various components.

[0058] Each screw rod 1000 is connected to a plurality of second locking nuts 1100 through threads, and the upper flange 100 and the cover plate 900 are fixed to the screw rod 1000 through the second locking nuts 1100. Such a design makes the installation and fastening of the upper flange 100 and the cover plate 900 easier and more adjustable. The operator can adjust the fastening degree of the upper flange 100 and the cover plate 900 by rotating the second locking nuts 1100, thereby ensuring the tightness of the entire sealing system.

[0059] Furthermore, the first through hole 110 has a first section 111 and a second section 112, the first section 111 is closer to the lower flange 200 than the second section 112, the diameter of the first section 111 is greater than the diameter of the second section 112, and the diameter of the second section 112 gradually increases in a direction away from the first section 111, and the second through hole 210 has a third section 211 and a fourth section 212, the third section 211 is closer to the upper flange 100 than the fourth section 212, and the diameter of the third section 211 is greater than the diameter of the fourth section 212.

[0060] In this embodiment, the first through hole 110 has a first section 111 and a second section 112, and the first section 111 and the second section 112 have different diameters. The observation tube 300 can be stuck between the first section 111 and the second section 112 at the diameter-changing position, which is convenient for the combination of the observation tube 300 and the upper flange 100. The second through hole 210 has a third section 211 and a fourth section 212, which have the same effect as the first section 111 and the second section 112, and is conducive to the combination of the observation tube 300 and the lower flange 200.

[0061] The second section 112 is tapered, which is more conducive to the fuel flowing toward the observation tube 300.

[0062] Furthermore, the observation tube 300 is a glass tube, and the observation tube 300 has scale lines.

[0063] In this embodiment, the glass observation tube 300 can provide excellent light transmittance, so that the inspector can directly and clearly observe the fuel in the tube. The scale lines on the observation tube 300 provide convenience for quantitative analysis, allowing the inspector to directly read the volume or liquid level of the fluid, which is more conducive to intuitively understanding the injection amount of each oil needle.

[0064] Furthermore, the elastic member 800 is a butterfly-shaped spring piece.

[0065] In this embodiment, the butterfly spring, due to its flat and compact structure, can utilize space more effectively compared to traditional coil springs or other types of elastic elements, especially inside the third through hole 202 where space is limited. In addition, the butterfly spring, due to its unique shape, can evenly distribute force along its plane when compressed or stretched, thereby providing a stable and uniform restoring force for the piston 500.

[0066] Furthermore, it also includes a pipe joint 1200, which is arranged at the inlet 901, and the pipe joint 1200 is used to connect the oil pump.

[0067] In this embodiment, the pipe joint 1200 serves as a bridge between the outside and the device, providing a fast, safe and convenient connection method. The pipe joint 1200 is usually designed with a standard interface, which is compatible with different types of oil pump pipelines or air pressure systems, making it easy for installers to quickly access or replace oil or air sources according to actual needs without complicated installation processes.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An engine oil needle injection amount detection device, characterized in that: include: An upper flange (100), wherein the upper flange (100) has a plurality of first through holes (110); a lower flange (200) located below the upper flange (100), with a gap between the upper flange (100) and the lower flange (200), the lower flange (200) having a plurality of second through holes (210), the second through holes (210) being coaxial with the first through holes (110); an observation tube (300), two ends of which are respectively arranged in the first through hole (110) and the second through hole (210), the two ends of the observation tube (300) are respectively connected to the first through hole (110) and the second through hole (210), and the observation tube (300) is used to contain the oil sprayed by the oil needle; A sealing plate (400) is arranged to be raised and lowered relative to the lower flange (200), the sealing plate (400) being located on a side of the lower flange (200) away from the upper flange (100), and when the sealing plate (400) is raised and lowered, the second through hole (210) is blocked or opened.

2. The engine oil needle injection amount detection device according to claim 1, characterized in that: The lower flange (200) has a third through hole (202), the bottom of the third through hole (202) has a limiting ring (203), a plurality of the second through holes (210) are distributed along the circumference of the third through hole (202), and further comprises: A piston (500) is arranged in the third through hole (202) for lifting and lowering. After the piston (500) is lifted and lowered, it moves away from or approaches the limiting ring (203). After the piston (500) is lowered, it abuts against the limiting ring (203). The limiting ring (203) is used to limit the distance that the piston (500) is lowered; a threaded rod (600) having a first end (610) and a second end (620), wherein the first end (610) is slidably disposed in the third through hole (202), and the second end (620) is located on a side of the lower flange (200) away from the upper flange (100), and the sealing plate (400) is lifted and disposed on the threaded rod (600); The first locking nut (700) is threadedly connected to the threaded rod (600), the sealing plate (400) is located above the first locking nut (700), and the first locking nut (700) abuts against the bottom of the sealing plate (400), and the first locking nut (700) is used to push the sealing plate (400) to abut against the bottom of the lower flange (200).

3. The engine oil needle injection amount detection device according to claim 2, characterized in that: Also includes: An elastic member (800) has two ends respectively arranged on the bottom of the piston (500) and the limiting ring (203), the elastic member (800) is used to provide a force for the piston (500) to move away from the limiting ring (203), and the threaded rod (600) passes through the inside of the elastic member (800).

4. The engine oil needle injection amount detection device according to claim 2, characterized in that: The lower flange (200) has a boss (204) at its center, and the third through hole (202) passes through the boss (204).

5. The engine oil needle injection amount detection device according to claim 4, characterized in that: The piston (500) slides in a sealed manner with the third through hole (202), and further comprises: A cover plate (900) is sealingly arranged on the top of the third through hole (202), the cover plate (900) is used to cover the third through hole (202), the cover plate (900) has an inlet (901), and the inlet (901) is connected to the space between the cover plate (900) and the piston (500).

6. The engine oil needle injection amount detection device according to claim 5, characterized in that: Also includes: There are a plurality of screw rods (1000), one end of each of the screw rods (1000) is disposed on the boss (204), the axis of the screw rod (1000) is parallel to the axis of the third through hole (202), and the screw rods (1000) are spaced apart and distributed along the circumference of the third through hole (202); There are a plurality of second locking nuts (1100), all of which are threadedly connected to the screw rod (1000); the upper flange (100) and the cover plate (900) are respectively arranged on the screw rod (1000) via the second locking nuts (1100).

7. The engine oil needle injection amount detection device according to claim 1, characterized in that: The first through hole (110) comprises a first section (111) and a second section (112); the first section (111) is closer to the lower flange (200) than the second section (112); the diameter of the first section (111) is greater than the diameter of the second section (112); the diameter of the second section (112) gradually increases in a direction away from the first section (111); the second through hole (210) comprises a third section (211) and a fourth section (212); the third section (211) is closer to the upper flange (100) than the fourth section (212); the diameter of the third section (211) is greater than the diameter of the fourth section (212).

8. The engine oil needle injection amount detection device according to claim 1, characterized in that: The observation tube (300) is a glass tube, and the observation tube (300) has scale lines.

9. The engine oil needle injection amount detection device according to claim 3, characterized in that: The elastic member (800) is a butterfly-shaped spring piece.

10. The engine oil needle injection amount detection device according to claim 5, characterized in that: Also includes: A pipe joint (1200) is arranged at the inlet (901), and the pipe joint (1200) is used to connect an external pipeline.

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