An air engine oil pump upper housing flow simulation device

Abstract

An airfoil engine oil pump upper housing flow simulation device belongs to the technical field of airfoil engines. The upper end of the bottom plate is fixedly connected to the lower end of the vertical plate. One end face of the vertical plate is fixedly connected to the oil pump upper housing, and the other end face of the vertical plate is fixedly connected to the oil inlet nozzle. The oil inlet nozzle is communicated with the oil pump upper housing. A main target plate is inserted into the inner hole of the oil pump upper housing, and an auxiliary target plate is inserted into the main target plate. The outer end of the auxiliary target plate is fixedly and hermetically connected to the baffle plate, and the outer end of the baffle plate is locked and fixed to the oil pump upper housing; the lower end of the baffle plate is fixedly connected to the oil receiving nozzle. The present invention adopts an integral side-lying structure, and the oil pump upper housing is horizontally installed into the simulation device to simulate the real working environment of the oil pump upper housing. At the same time, the main target plate and the auxiliary target plate are detachable, realizing the flow monitoring before and after the target of the oil injection holes of the oil pump upper housing and improving the accuracy of flow monitoring.

Description

Technical Field

[0001] The present invention relates to a flow simulation device for the upper housing of an aero-engine oil pump, belonging to the technical field of aero-engines. Background Art

[0002] As a key component of an aero-engine, the structural design and function realization of the upper housing of the oil pump are crucial for ensuring the normal operation of the engine. The upper housing of the oil pump not only needs to have high reliability, but also be able to precisely control the injection volume and injection direction of the lubricating oil to ensure that all components of the engine are fully lubricated and prevent engine failures caused by insufficient lubrication.

[0003] The traditional flow simulation device for the upper housing of the oil pump only includes one spray hole to simulate the injection process of the lubricating oil. However, there are five flow holes for injecting lubricating oil on the upper housing of the oil pump. Since the five flow holes will interfere with each other during operation, the traditional single-spray-hole simulation device cannot accurately simulate the actual working conditions when multiple spray holes work simultaneously. Therefore, in terms of evaluating the performance of the upper housing of the oil pump, optimizing the injection parameters of the lubricating oil, and predicting the operating stability of the engine, the existing simulation devices all have obvious deficiencies. Summary of the Invention

[0004] To solve the problems in the background art, the present invention provides a flow simulation device for the upper housing of an aero-engine oil pump.

[0005] To achieve the above object, the present invention adopts the following technical solution: A flow simulation device for the upper housing of an aero-engine oil pump includes a bottom plate, a vertical plate, an oil receiving nozzle, a baffle plate, an oil inlet nozzle, an auxiliary target plate, and a main target plate; the upper end of the bottom plate is fixedly connected to the lower end of the vertical plate, one end face of the vertical plate is fixedly connected to the upper housing of the oil pump, the other end face of the vertical plate is fixedly connected to the oil inlet nozzle, the oil inlet nozzle is communicated with the upper housing of the oil pump, a main target plate is inserted into the inner hole of the upper housing of the oil pump, an auxiliary target plate is inserted into the main target plate, the outer end of the auxiliary target plate is fixedly and sealedly connected to the baffle plate, the outer end of the baffle plate is locked and fixed to the upper housing of the oil pump; the lower end of the baffle plate is fixedly connected to the oil receiving nozzle.

[0006] The oil outlet end of the oil receiving nozzle is fixedly inserted into a oil pipe.

[0007] The oil receiving nozzle and the oil pipe are fixedly connected by a pipe clamp.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] The present invention adopts an integral side-lying structure, and the upper housing of the oil pump is horizontally installed in the simulation device to simulate the real working environment of the upper housing of the oil pump. At the same time, the main target plate and the auxiliary target plate are detachable, realizing the flow monitoring before and after the injection holes of the upper housing of the oil pump and improving the accuracy of flow monitoring. Brief Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present invention;

[0011] Figure 2 is Figure 1 the A-A sectional view of

[0012] Figure 3 is Figure 2 the enlarged view at B of Detailed Description of the Preferred Embodiments

[0013] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0014] An aviation engine oil pump upper housing flow simulation device includes a bottom plate 1, a vertical plate 2, an oil receiving nozzle 7, a baffle 10, an oil inlet nozzle 15, an auxiliary target plate 12, and a main target plate 17; the upper end of the bottom plate 1 is fixedly connected to the lower end of the vertical plate 2 by a first screw 16, one end face of the vertical plate 2 is fixedly connected to the oil pump upper housing by a second screw 4, the other end face of the vertical plate 2 is fixedly connected to the oil inlet nozzle 15, the oil inlet nozzle 15 is communicated with the oil pump upper housing, the oil inlet nozzle 15 passes through a washer 14 and is fixed on the vertical plate 2 by its own thread, the outer diameter of the oil inlet nozzle 15 has a rubber ring groove, and a sealing ring 13 is installed in the rubber ring groove. The oil inlet nozzle 15 is sealed by the sealing ring 13 to supply oil to the device; a main target plate 17 is inserted into the inner hole of the oil pump upper housing, an auxiliary target plate 12 is inserted into the main target plate 17, the outer end of the auxiliary target plate 12 is fixedly and sealedly connected to the baffle 10 by a countersunk head screw, and the outer end of the baffle 10 is locked and fixed to the oil pump upper housing by a nut 11; the lower end of the baffle 10 is fixedly connected to the oil receiving nozzle 7, and the oil receiving nozzle 7 passes through a gasket 6 and is fixed on the baffle 10 by its own thread.

[0015] The oil outlet end of the oil receiving nozzle 7 is fixedly inserted with a tubing 9.

[0016] The oil receiving nozzle 7 and the tubing 9 are fixedly connected by a pipe clip 8.

[0017] When using the present invention, the lubricating oil enters the oil pump upper housing from the oil inlet nozzle 15 and is sprayed from the spray port onto the auxiliary target plate 12 and the main target plate 17, and then flows out through the oil receiving nozzle 7 for spray volume detection. The auxiliary target plate 12 and the main target plate 17 are used for spray direction detection.

[0018] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent conditions of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

[0019] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flow direction simulation device for an aircraft engine oil pump upper casing, characterized in that: The invention comprises a bottom plate (1), a vertical plate (2), an oil receiving nozzle (7), a baffle (10), an oil inlet nozzle (15), an auxiliary target plate (12) and a main target plate (17); the upper end of the bottom plate (1) is fixedly connected to the lower end of the vertical plate (2); one end surface of the vertical plate (2) is fixedly connected to an upper shell of an oil pump; the other end surface of the vertical plate (2) is fixedly connected to the oil inlet nozzle (15); the oil inlet nozzle (15) is connected to the upper shell of the oil pump; the main target plate (17) is inserted into the inner hole of the upper shell of the oil pump; the auxiliary target plate (12) is inserted into the main target plate (17); the outer end of the auxiliary target plate (12) is fixedly sealed and connected to the baffle (10); the outer end of the baffle (10) is locked and fixed to the upper shell of the oil pump; the lower end of the baffle (10) is fixedly connected to the oil receiving nozzle (7).

2. The aircraft engine oil pump upper casing flow direction simulation device according to claim 1, characterized in that: The oil outlet end of the oil receiving nozzle (7) is plugged and fixed to the oil pipe (9).

3. The aircraft engine oil pump upper casing flow direction simulation device according to claim 2, characterized in that: The oil receiving nozzle (7) and the oil pipe (9) are fixedly connected via a pipe clamp (8).

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