A test nozzle device

Abstract

The application provides a test nozzle device, which comprises a nozzle body capable of rotating around a rotation axis of the nozzle body, the nozzle body is provided with a mounting portion, a radial nozzle hole is detachably mounted on the mounting portion, and a center line of the radial nozzle hole is located in a normal plane of the rotation axis; and an axial nozzle hole is also mounted on the mounting portion and fixed on the mounting portion at an adjustable angle. The universal test nozzle device can realize adjustment of a large range of jet angles and positions, and meets the universal demand of ring-lubrication nozzle devices; the radial nozzle hole mounting seat and the axial nozzle hole mounting seat both have high compatibility, the radial nozzle hole mounting seat can allow radial nozzle holes with different diameters and length-diameter ratios to be designed and installed in multiple groups; and the axial nozzle hole mounting seat can allow axial nozzle holes with different diameters and length-diameter ratios to be designed and installed in multiple groups, so that the adaptability of the nozzle holes and the universality of the device are greatly improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to a kind of test nozzle device, especially relates to a kind of oil jet nozzle device for aero-engine under-ring lubrication test. BACKGROUND

[0002] In aero-engine, with the bearing dn value constantly increasing, a large number of under-ring lubrication structure is adopted. Generally, according to the different jet direction of oil jet nozzle, the under-ring lubrication structure is divided into axial and radial under-ring lubrication. The jet direction of nozzle and the position of nozzle are one of the important factors affecting the efficiency of under-ring lubrication. The jet direction of nozzle and the position of nozzle used for different bearings and different types of under-ring lubrication structure are different. Therefore, in the current under-ring lubrication test, a set of special test nozzle device is generally designed for each bearing under-ring lubrication structure. The jet position and angle are basically not adjustable, the number of test pieces of jet group is large, and when the nozzle structure needs to be optimized, the test piece needs to be redesigned, and the test is carried out again after the test piece is processed.

[0003] The under-ring lubrication nozzle device is generally divided into radial and axial types. The radial nozzle is located in the radial plane of the center axis, and is generally positioned by two parameters of jet hole position and distance from the axis. The axial nozzle is located in the axial plane of the center axis, and is generally positioned by the axial nozzle center point, radial distance and the angle between the jet hole center line and the center axis, as shown in Fig. 1-2 .

[0004] At present, a set of special test nozzle device is generally designed for each bearing under-ring lubrication structure. After combining various structure parameters, a large number of test pieces need to be designed, the test cost is high, the jet position and angle are basically not adjustable, the nozzle structure cannot be adjusted in real time according to the test results, and the development progress of aero-engine is restricted due to the influence of processing period of nozzle device. SUMMARY

[0005] In view of the above problems, the present application provides an oil jet nozzle device for aero-engine under-ring lubrication test, which integrates radial nozzle and axial nozzle on one nozzle device. The technical problem that a special nozzle needs to be designed for different lubrication structure test in the prior art, and the jet angle and position of the nozzle cannot be adjusted, and the generalization of under-ring lubrication test device cannot be realized is solved.

[0006] A test nozzle device, the test nozzle device comprises a nozzle body, the nozzle body rotates around its rotation axis, the nozzle body has a mounting portion, a radial jet hole is detachably mounted on the mounting portion, and the center line of the radial jet hole is located in the normal plane of the rotation axis. An axial jet hole is also mounted on the mounting portion, and the axial jet hole is fixed on the mounting portion at an adjustable angle.

[0007] Preferably, the axial spray hole is installed on one side of the mounting portion close to the rotation axis, the radial spray hole is installed on the axial end of the mounting portion; the axial spray hole is adjusted in angle in the plane through the rotation axis of the nozzle body; the radial spray hole is installed in a manner towards the rotation axis; the spray opening of the radial spray hole is located on the rotation axis.

[0008] Preferably, the nozzle body is installed on the mounting disc and is slidingly fitted along the radial direction of the mounting disc.

[0009] Preferably, the mounting disc is provided with a radial slot, the nozzle body is rotationally installed on a mounting seat, the mounting seat is installed on the mounting disc, and the mounting seat is slidingly fitted along the radial slot on the mounting disc.

[0010] Preferably, the nozzle body is provided with a circular positioning step, the nozzle body is positioned on the mounting seat through the circular positioning step, is fixed through a flange, and is provided with an end face seal; the mounting seat is installed on the mounting disc through a waist-shaped flange and is provided with an end face seal.

[0011] Preferably, the axial spray hole is connected with a horizontal slide and a vertical slide which are perpendicular to each other, the horizontal slide and the vertical slide are respectively slidingly connected on the mounting portion and are positioned.

[0012] Preferably, a first slide groove and a second slide groove which are perpendicular to each other are respectively provided on the end face of the mounting portion close to the rotation axis, the horizontal slide and the vertical slide are respectively slidingly installed in the first slide groove and the second slide groove; a waist-shaped flange is respectively provided on the horizontal slide and the vertical slide, and the horizontal slide and the vertical slide are positioned on the radial end face of the mounting portion through the waist-shaped flange.

[0013] Preferably, a connecting rod is further included, the connecting rod is respectively fixed on the horizontal slide and the vertical slide through a first bearing and a second bearing, and the axial spray hole is fixed on the connecting rod.

[0014] Preferably, a radial spray hole mounting seat is further included, the radial spray hole mounting seat is detachably installed on the axial end of the mounting portion, the radial spray hole mounting seat is fixed with the radial spray hole, and the radial spray hole mounting seat has the radial spray hole with different hole diameters and length-diameter ratios for replacement installation; and / or, an axial spray hole mounting seat is further included, the axial spray hole mounting seat is fixed with the axial spray hole, and the axial spray hole mounting seat has the axial spray hole with different hole diameters and length-diameter ratios for replacement installation.

[0015] Preferably, the nozzle body is supplied with oil through a pipe joint, and then through an oil supply pipeline with an end face sealing structure, connected to the radial injection hole and / or the axial injection hole.

[0016] Compared with the prior art, the present application has the advantages that:

[0017] 1) The universal test nozzle device of the present application can realize adjustment of a large range of injection angles and positions, meeting the universalization requirement of the under-ring lubrication nozzle device;

[0018] 2) Using the universal test nozzle device of the present application can greatly reduce the design and manufacturing cost of special nozzles;

[0019] 3) Using the universal test nozzle device of the present application can greatly reduce the matching verification period of the under-ring lubrication structure and the nozzle, and improve the research and development efficiency;

[0020] 4) The radial injection hole mounting seat and the axial injection hole mounting seat of the present application have high compatibility, the radial injection hole mounting seat can allow multiple groups of radial injection holes with different hole diameters and length-diameter ratios to be installed; the axial injection hole mounting seat can allow multiple groups of axial injection holes with different hole diameters and length-diameter ratios to be installed, greatly improving the adaptability of the injection holes and the universality of the device;

[0021] 5) The present application can flexibly adjust the axial injection hole mounting angle and then flexibly adjust the injection angle through the setting of the double sliding blocks;

[0022] 6) The present application can realize adjustment of the injection angle, especially the adjustment of the injection angle of the radial nozzle, only through the rotational movement of the nozzle body;

[0023] 7) The mounting disc of the present application is provided with a radial groove, and the radial positioning of the nozzle is realized by moving the nozzle body in the radial groove on the mounting disc, thereby meeting the lubrication requirement of bearings of different sizes.

[0024] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be realized and obtained by the structure indicated in the specification, claims and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

[0026] Fig. 1A schematic diagram of a prior art axial-radial nozzle is shown.

[0027] Fig. 2 A schematic diagram of a cross-section along A-A is shown. Fig. 1 A schematic diagram of a cross-section along A-A is shown.

[0028] Fig. 3 A schematic diagram of the structure of the test nozzle device of the present application is shown.

[0029] Fig. 4 A schematic diagram of a cross-section along A-A is shown. Fig. 3 A schematic diagram of a cross-section along A-A is shown.

[0030] Fig. 5 A schematic diagram of a cross-section along A-A is shown. Fig. 3 A schematic diagram of a cross-section along A-A is shown.

[0031] Fig. 6 A schematic diagram of a cross-section along A-A is shown. Fig. 5 A schematic diagram of a cross-section along A-A is shown.

[0032] Fig. 7 A schematic diagram of a cross-section along A-A is shown. Fig. 3 A schematic diagram of a cross-section along A-A is shown.

[0033] Fig. 8 A schematic diagram of a cross-section along A-A is shown. Fig. 3 A schematic diagram of a cross-section along A-A is shown.

[0034] In the figure, 1 is a nozzle body; 2 is a mounting seat; 3 is a mounting disc; 4 is a radial injection hole; 5 is a radial injection hole mounting seat; 6 is an axial injection hole; 7 is an axial injection hole mounting seat; 8 is a horizontal sliding block; 9 is a vertical sliding block; 10 is a connecting rod; 11 is a bearing; 12 is a gasket; and 13 is an oil supply pipeline. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] In order to realize a universal under-ring lubrication test nozzle device to meet the needs of different under-ring lubrication structure tests, the radial nozzle and the axial nozzle are integrated on one nozzle device, and the technical scheme is as follows:

[0037] As Fig. 3-8As shown, the present application provides a test nozzle device, the whole device is composed of a nozzle body 1, a mounting seat 2, a mounting disc 3, a radial nozzle hole 4, a radial nozzle hole mounting seat 5, an axial nozzle hole 6, an axial nozzle hole mounting seat 7, a horizontal sliding block 8, a vertical sliding block 9, a connecting rod 10, a bearing 11, a gasket 12, an oil supply pipeline 13 and the like.

[0038] Specifically, the test nozzle device of the present application comprises a nozzle body 1, the nozzle body 1 can rotate around its own rotation axis, the nozzle body 1 has a mounting portion, a radial nozzle hole 4 is detachably mounted on the mounting portion, the center line of the radial nozzle hole 4 is located in the normal plane of the rotation axis, that is, even if the radial nozzle hole 4 rotates with the nozzle body 1, the plane where the center line of the radial nozzle hole 4 is located is always perpendicular to the rotation axis; an axial nozzle hole 6 is also mounted on the mounting portion, the axial nozzle hole 6 is fixed on the mounting portion in an adjustable angle manner.

[0039] Further, the axial nozzle hole 6 is mounted on one side of the mounting portion close to the rotation axis, and the radial nozzle hole 4 is mounted on the axial end of the mounting portion; the axial nozzle hole 6 is adjusted in angle in the plane through which the rotation axis of the nozzle body 1 passes; the radial nozzle hole 4 is mounted in a manner towards the rotation axis; the nozzle of the radial nozzle hole 4 is located on the rotation axis.

[0040] Further, the nozzle body 1 is rotationally mounted on the mounting disc 3 and is slidably fitted along the radial direction of the mounting disc 3, and can be moved and positioned.

[0041] Further, the mounting disc 3 is provided with a radial groove, the nozzle body 1 is mounted on the mounting seat 2, the mounting seat 2 is mounted on the mounting disc 3, and the mounting seat 2 is slidably fitted along the radial groove on the mounting disc 3, and can be moved and positioned.

[0042] Further, the nozzle body 1 is provided with a circular positioning step, the nozzle body 1 is positioned on the mounting seat 2 through the circular positioning step, and is fixed by a flange and provided with an end face seal; the mounting seat 2 is mounted on the mounting disc 3 by a waist-shaped flange and provided with an end face seal.

[0043] Further, the axial nozzle hole 6 is connected with a horizontal sliding block 8 and a vertical sliding block 9 which are perpendicular to each other, the horizontal sliding block 8 and the vertical sliding block 9 are respectively slidably connected on the mounting portion and positioned.

[0044] Further, a horizontal sliding groove and a vertical sliding groove which are perpendicular to each other are respectively provided on the end face of the mounting portion close to the rotation axis, and the horizontal sliding block 8 and the vertical sliding block 9 are respectively slidably mounted in the horizontal sliding groove and the vertical sliding groove; a waist-shaped flange is respectively provided on the horizontal sliding block 8 and the vertical sliding block 9, and through the waist-shaped flange, the horizontal sliding block 8 and the vertical sliding block 9 are positioned on the radial end face of the mounting portion.

[0045] Further, a connecting rod 10 is fixed to the horizontal slider 8 and the vertical slider 9 through the first bearing and the second bearing respectively, and the axial injection hole 6 is fixed to the connecting rod 10.

[0046] Further, a radial injection hole mounting seat 5 is detachably mounted at the axial end of the mounting part, the radial injection hole 4 is fixed to the radial injection hole mounting seat 5, and the radial injection hole mounting seat 5 can allow radial injection holes 4 with different hole diameters and length-diameter ratios to be installed; and / or, an axial injection hole mounting seat 7 is provided, the axial injection hole 6 is fixed to the axial injection hole mounting seat 7, and the axial injection hole mounting seat 7 can allow axial injection holes 6 with different hole diameters and length-diameter ratios to be installed.

[0047] Further, the nozzle body 1 is connected to the radial injection hole 4 and / or the axial injection hole 6 through the pipe joint for oil supply and the oil supply pipeline 13 with the end face sealing structure.

[0048] The installation method of the universal test nozzle device of the present application is as follows:

[0049] The nozzle body 1 is positioned on the mounting seat 2 through the positioning circle thereon and is mounted through the flange; the mounting seat 2 is mounted on the mounting disc 3 and can move along the radial groove on the mounting disc 3 and is mounted through the waist-shaped flange, end face sealing, and the gasket 12 is arranged between the mounting seat 2 and the mounting disc 3; the radial injection hole 4 is combined with the radial injection hole mounting seat 5 and is mounted on the end face of the nozzle body 1, and a plurality of radial injection holes 4 with different hole diameters and length-diameter ratios are designed to be replaced; the double slider structure is mounted on the inner side of the nozzle body 1 and is composed of the horizontal slider 8, the vertical slider 9, the connecting rod 10 and the bearing 11, the connecting rod 10 is connected to the horizontal slider 8 and the vertical slider 9 at two ends respectively, the two connecting parts are supported by the bearing 11, the horizontal slider 8 and the vertical slider 9 are provided with the waist-shaped flange and can be fixed to the nozzle body 1; the axial injection hole 6 is combined with the axial injection hole mounting seat 7 and is mounted on the connecting rod 10, and a plurality of axial injection holes 6 with different hole diameters and length-diameter ratios are designed to be replaced; the nozzle body 1 is connected to the radial injection hole mounting seat 5 or the axial injection hole mounting seat 7 through the left pipe joint for oil supply and the oil supply pipeline 13 with the end face sealing structure.

[0050] The principle of adjusting the nozzle position, the injection position and the angle of the universal test nozzle device of the present application is as follows:

[0051] The center line of the radial injection hole 4 is located in the radial section plane passing through the center of the rotating shaft, the injection point is concentric with the positioning circle of the nozzle body 1, the injection angle is adjusted by rotating the nozzle body 1, the radial injection hole 4 and the radial injection hole mounting seat 5 are designed as a separated structure and are sealed by using the radial sealing structure.

[0052] The axial hole center line 6 is arranged in the axial section through the center of the shaft, the spray angle adjustment is realized by using a double slider structure, the horizontal slider 8, the vertical slider 9 and the connecting rod 10 are combined, the center point of the spray hole is arranged on the center line of the horizontal slider 8, the axial pad 12 is combined for adjustment, the axial positioning of the nozzle is realized, the nozzle body 1 is moved in the radial groove on the mounting disc 3, the radial positioning of the nozzle is realized, the spray hole and the nozzle body 1 are designed in a separated structure, and the radial sealing structure is used for sealing.

[0053] In conclusion, the unique spray nozzle spray position, spray angle adjustment principle and structure form of the present application make the nozzle device have a universal function, the axial, radial and ring lubrication spray hole spray position and spray angle adjustment can be realized, and the needs of different lubrication structures for the nozzle device can be met.

[0054] The device has been proved to be feasible through analysis and calculation, and has been verified in the aviation engine ring lubrication test, and the research and development efficiency is improved and the test cost is reduced.

[0055] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly included one or more features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0056] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A test nozzle device, characterized in that: The test nozzle device comprises a nozzle body (1), wherein the nozzle body (1) rotates around its own rotation axis, and the nozzle body (1) has a mounting portion, on which a radial spray hole (4) is detachably mounted, wherein the center line of the radial spray hole (4) is located in the normal plane of the rotation axis; and an axial spray hole (6) is also mounted on the mounting portion, wherein the axial spray hole (6) is fixed to the mounting portion in an angle-adjustable manner; The axial spray hole (6) is installed on a side of the mounting portion close to the rotation axis, and the radial spray hole (4) is installed at an axial end of the mounting portion; the axial spray hole (6) is adjusted in angle within a plane through which the rotation axis of the nozzle body (1) passes; the radial spray hole (4) is installed in a manner facing the rotation axis; the nozzle of the radial spray hole (4) is located on the rotation axis; The axial spray hole (6) is connected to a horizontal slider (8) and a vertical slider (9) that are perpendicular to each other. The horizontal slider (8) and the vertical slider (9) are respectively slidably connected to the mounting portion and positioned.

2. The test nozzle device according to claim 1, characterized in that The nozzle body (1) is mounted on the mounting disk (3) and is slidably fitted along the radial direction of the mounting disk (3).

3. The test nozzle device according to claim 2, characterized in that The mounting plate (3) is provided with a radial groove, the nozzle body (1) is rotatably mounted on the mounting seat (2), the mounting seat (2) is mounted on the mounting plate (3), and the mounting seat (2) is slidably fitted along the radial groove on the mounting plate (3).

4. The test nozzle device according to claim 3, characterized in that The nozzle body (1) is provided with a circular positioning step, and the nozzle body (1) is positioned on the mounting seat (2) via the circular positioning step, fixed via a flange, and provided with an end face seal; the mounting seat (2) is mounted on the mounting plate (3) via a waist-shaped flange and provided with an end face seal.

5. The test nozzle device according to claim 1, characterized in that A first slide groove and a second slide groove perpendicular to each other are respectively provided on one end face of the mounting portion close to the rotation axis, and the horizontal slider (8) and the vertical slider (9) are respectively slidably mounted in the first slide groove and the second slide groove; a waist-shaped flange is respectively provided on the horizontal slider (8) and the vertical slider (9), and the horizontal slider (8) and the vertical slider (9) are positioned on the radial end face of the mounting portion through the waist-shaped flange.

6. The test nozzle device according to claim 5, characterized in that It also includes a connecting rod (10), wherein the connecting rod (10) is fixed to the horizontal slider (8) and the vertical slider (9) via a first bearing and a second bearing, respectively, and the axial spray hole (6) is fixed to the connecting rod (10).

7. The test nozzle device according to claim 1, characterized in that The invention also includes a radial spray hole mounting seat (5), the radial spray hole mounting seat (5) being detachably mounted on the axial end of the mounting portion, the radial spray hole (4) being fixed on the radial spray hole mounting seat (5), and the radial spray hole (4) having different apertures and aspect ratios being replaceable and mounted on the radial spray hole mounting seat (5); and / or, an axial spray hole mounting seat (7), the axial spray hole (6) being fixed on the axial spray hole mounting seat (7), and the axial spray hole mounting seat (7) being replaceable and mounted on the axial spray hole (6) having different apertures and aspect ratios.

8. The test nozzle device according to claim 1, characterized in that The nozzle body (1) is supplied with oil through a pipe joint and then connected to the radial spray hole (4) and / or the axial spray hole (6) through an oil supply pipeline (13) having an end face sealing structure.

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