CN112082053B

CN112082053B - Rocking structure

Info

Publication number: CN112082053B
Application number: CN202010921054.7A
Authority: CN
Inventors: 徐建壮; 郑海亮; 王小颖; 王坤; 张成凯
Original assignee: AECC Shenyang Engine Research Institute
Current assignee: AECC Shenyang Engine Research Institute
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2022-05-06
Anticipated expiration: 2040-09-04
Also published as: CN112082053A

Abstract

The application belongs to the technical field of inspection is visited in engine rotor hole, concretely relates to rocking structure, include: the supporting seat is provided with a supporting hole; the rocking rod penetrates through the supporting hole and can swing and rotate relative to the supporting seat, one end of the rocking rod is a rocking end, and the other end of the rocking rod is a stirring end; the poking end is bent, and the bent part is arc-shaped; the joint bearing is sleeved on the rocking rod and arranged in the supporting hole; the supporting seat and the swinging rod are connected through a joint bearing.

Description

Rocking structure

Technical Field

The application belongs to the technical field of inspection of engine rotor hole probes, and particularly relates to a rocking structure.

Background

In the life cycle of an aircraft engine, hole probing inspection needs to be performed on the aircraft engine under the condition that the aircraft engine is not delivered, in this case, the engine is subjected to hole probing inspection, and in order to enable a hole probe extending into an engine casing through a hole probing hole to check each rotor blade distributed along the axial direction, each rotor blade needs to be shifted to enable each rotor blade to rotate.

At present, because the last hole finder hole to on the stator blade of just being less of engine machine casket, and should not offer more hole at the position of the just rotor blade of casket, it directly stirs the rotor blade in the engine machine casket outside to be difficult to through the instrument, when carrying out the hole inspection to the engine under the condition that does not lose hair, the staff is mostly to stretch into the inside rotor blade of engine machine casket with its arm through engine machine casket exit position and stir its interior rotor blade, make each rotor blade rotate, this kind of technical scheme has following defect:

1) the multifunctional equipment exists in the engine case, so that the flexibility of the arm is greatly limited, and the arm is stretched into the engine case to stir the rotor blade, so that the inconvenience is high;

2) the arm extends into the engine casing to stir the rotor blade, so that the working environment is severe, and great safety risk which is difficult to predict exists;

3) need arrange special staff to stir the rotor blade, this staff is relatively poor with all the other staff cooperations that carry out the hole and visit the inspection, influences the efficiency of hole and visit the inspection, has prolonged the cycle of hole and visit the inspection.

The present application has been made in view of the above-mentioned technical drawbacks.

It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present patent application.

Disclosure of Invention

It is an object of the present application to provide a rocking structure to overcome or mitigate at least one of the technical disadvantages of the known prior art.

The technical scheme of the application is as follows:

a swing structure comprising:

the supporting seat is provided with a supporting hole;

the rocking rod penetrates through the supporting hole and can swing and rotate relative to the supporting seat, one end of the rocking rod is a rocking end, and the other end of the rocking rod is a stirring end; the poking end is bent.

According to at least one embodiment of the present application, in the above-mentioned rocking structure, a surface of the supporting seat facing to the side of the pulling end is recessed around the supporting hole to form a bayonet.

According to at least one embodiment of the present application, in the above-mentioned rocking structure, the supporting seat is close to the rocking end.

According to at least one embodiment of the present application, in the above-mentioned rocking structure, the bending portion of the rocking lever is arc-shaped.

According to at least one embodiment of the present application, the above-mentioned rocking structure further includes:

and the joint bearing is sleeved on the rocking rod and arranged in the supporting hole.

According to at least one embodiment of the present application, in the above rocking structure, the inner wall of the supporting hole has a limiting protrusion and a limiting groove;

the rocking structure still includes:

the limiting ring is clamped in the limiting groove;

the joint bearing is positioned between the limiting protrusion and the limiting ring.

According to at least one embodiment of the present application, in the above-mentioned rocking structure, the rocking plate is connected to the rocking end.

According to at least one embodiment of the present application, in the above-mentioned swing structure, the swing plate has a connection hole;

the rocking end extends into the connecting hole and is connected in a threaded fit manner.

and the rocking end extends out of the connecting hole and is in threaded fit connection with the nut.

Drawings

FIG. 1 is a schematic diagram of a swing structure provided in an embodiment of the present application;

FIG. 2 is a schematic view of a swing structure according to an embodiment of the present disclosure for stirring the rotor blades to rotate;

FIG. 3 is a schematic illustration of a swing structure provided by an embodiment of the present application separated from a rotor blade;

wherein:

1-a support seat; 2-rocking the rotating rod; 3-a spherical plain bearing; 4-a limit ring; 5-shaking the rotating plate; 6-a nut; 7-an engine case; 8-rotor blades; 9-stator blades; 10-bore probe holder.

For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.

Detailed Description

In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.

In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The use of the terms "comprising" or "including" and the like in the description of the present application is intended to indicate that the element or item preceding the term covers the element or item listed after the term and its equivalents, without excluding other elements or items.

Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.

The present application is described in further detail below with reference to fig. 1 to 3.

A rocking structure comprising:

the supporting seat 1 is provided with a supporting hole;

the rocking rod 2 penetrates through the supporting hole and can swing and rotate relative to the supporting seat 1, one end of the rocking rod is a rocking end, and the other end of the rocking rod is a stirring end; the poking end is bent.

For the rocking structure disclosed in the above embodiments, it can be understood by those skilled in the art that the rotor blades 8 and the stator blades 9 at each stage in the engine case 7 are distributed at intervals along the axial direction, the borehole detector on the engine case 7 is located at the position of the stator blade 9, the toggling end of the rocking rod 2 of the rocking structure can pass through the borehole detector hole, enter between the two stator blades 9, swing the rocking rod 2 along the axial direction of the engine case 7, so that the toggling end extends out from between the two stator blades 9, and cut into between the two rotor blades 8 at the stage adjacent to the two stator blades 9, and rotate the rocking rod 2, so that the toggling end abuts against one of the rotor blades 8, thereby toggling the rotor blades 8 to rotate, after the rotor blades 8 are toggled to rotate in place, swing the rocking rod 2 along the axial direction of the engine case 7, so that the toggling end can be pulled out from between the rotor blades, so as to be cut into between different rotor blades 8 reciprocally, with the rotating blade butt of difference, stir rotor blade 8 and rotate the completion back, extract rocking rod 2 from the hole appearance hole.

With respect to the rocking structure disclosed in the above embodiments, it can be further understood by those skilled in the art that, in the process of shifting the rotor blade 8, the supporting seat 1 of the rocking structure can be supported on the engine case 7, specifically, on the bore finder seat 10, and the rocking rod 2 can be swung or rotated by applying a corresponding force to the rocking end.

For the swing structure disclosed in the above embodiment, it can be understood by those skilled in the art that the swing rod 2 extends into the engine case 7 through the hole finder hole on the engine case 7 to realize shifting of the rotor blade 8, and a corresponding hole does not need to be formed in the part of the engine case 4 aligned with the rotor blade 8, so that the part of the engine case 4 aligned with the rotor blade is not damaged, the overall performance of the engine is not affected, and in addition, the rotor blade 14 can be shifted outside the engine case 4, and higher efficiency and safety are achieved.

In some alternative embodiments, in the above-mentioned rocking structure, the surface of the side of the supporting seat 1 facing the poking end is recessed around the supporting hole to form a bayonet, and the bayonet can be clamped on the hole detector seat 10 during poking of the rotor blade 8, so as to enhance the stability of the structure.

In some optional embodiments, in the above-mentioned rocking structure, the supporting seat 1 is close to the rocking end.

In some alternative embodiments, the above-mentioned rocking structure has the bending portion of the rocking rod 2 in an arc shape so as to extend into the engine case 7 through the hole finder hole and to be pulled out of the engine case 7.

In some optional embodiments, the above-mentioned rocking structure further includes:

and the joint bearing 3 is sleeved on the rocking rod 2 and arranged in the supporting hole.

For the swing structure disclosed in the above embodiments, it can be understood by those skilled in the art that the supporting seat 1 and the swing rod 2 are connected through the joint bearing 3, so that the swing rod 2 can swing and rotate relative to the supporting seat 1 conveniently.

In some optional embodiments, in the above rocking structure, the inner wall of the supporting hole has a limiting protrusion and a limiting groove;

the rocking structure still includes:

the limiting ring 4 is clamped in the limiting groove;

the joint bearing 3 is positioned between the limiting protrusion and the limiting ring 4, so that the joint bearing 3 is limited from moving in the supporting hole.

In some alternative embodiments, the rocker plate 5 is connected to the rocker end in the above-described rocker structure.

With respect to the swing structure disclosed in the above embodiments, it will be understood by those skilled in the art that the swing plate 5 is provided at the swing end of the swing lever 2, so that a corresponding force can be easily applied to the swing plate 5 to swing or rotate the swing lever 2.

In some optional embodiments, in the above swing structure, the swing plate 5 has a connection hole;

and the swinging end of the nut 6 extends out of the connecting hole to be in threaded fit connection with the nut 6 so as to ensure the fastening between the swinging rod 2 and the swinging plate 5.

The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.

Claims

1. A rocking structure, comprising:

the supporting seat (1) is provided with a supporting hole;

the rocking rod (2) penetrates through the supporting hole, can swing and rotate relative to the supporting seat (1), and has one end serving as a rocking end and the other end serving as a stirring end; the poking end is bent, and the bent part is arc-shaped;

the joint bearing (3) is sleeved on the rocking rod (2) and arranged in the supporting hole; the supporting seat (1) and the rocking rod (2) are connected through the joint bearing (3).

2. The rocking structure of claim 1,

the surface of one side, facing the poking end, of the supporting seat (1) is recessed around the supporting hole to form a bayonet.

3. The swing structure according to claim 1,

the supporting seat (1) is close to the rocking end.

4. The swing structure according to claim 1,

the inner wall of the supporting hole is provided with a limiting protrusion and a limiting groove;

the rocking structure further comprises:

the limiting ring (4) is clamped in the limiting groove;

the joint bearing (3) is positioned between the limiting protrusion and the limiting ring (4).

5. The rocking structure of claim 1,

and the rocking plate (5) is connected with the rocking end.

6. The swing structure according to claim 5,

the swing plate (5) is provided with a connecting hole;

7. The swing structure according to claim 6,

further comprising:

and the rocking end extends out of the connecting hole and is in threaded fit connection with the nut (6).