Leak-off valve mounting seat assembly angular orientation control device and method

Abstract

The application discloses a kind of oil leakage valve mounting seat assembly angular control device and method, angular control device includes angular positioning block, reference length control block and stop block, angular positioning block has the positioning profile matched with oil leakage valve mounting seat, and the distance from the arbitrary point of oil leakage valve mounting seat to the reference surface of stop block is controlled to positioning profile, to ensure that the angular direction of oil leakage valve mounting seat is correct.The present application has high efficiency, good consistency and easy operation when assembling oil leakage valve mounting seat.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of the processing of the casing of the afterburner cylinder of an aero-engine, and particularly relates to a device for controlling the angular orientation of the oil leakage valve mounting seat during assembly and an assembly control method. BACKGROUND

[0002] The casing of the afterburner cylinder is one of the important components of the afterburner of an engine, and its main function is to supply fuel to the afterburner and increase the thrust of the engine in the short term. The angular orientation of the oil leakage valve mounting seat determines the orientation of the oil leakage valve and its associated connecting pipeline. In order to ensure that the external pipeline of the engine is correctly oriented and to avoid pipeline interference, the angular orientation of the oil leakage valve mounting seat must be ensured.

[0003] At present, when the oil leakage valve mounting seat is assembled with the casing of the afterburner cylinder, the angular orientation is ensured by measuring the distance from the highest point of the mounting seat to the mounting edge of the casing of the afterburner cylinder. The assembly personnel use a vernier caliper with a range of 0-300 mm to measure the distance. However, since everyone has a different measurement method, measurement errors are likely to occur, resulting in dimensional deviations, and a lot of time is spent. SUMMARY

[0004] The present application aims to provide a device for controlling the angular orientation of the oil leakage valve mounting seat during assembly and a method, to solve the problems of low assembly efficiency and poor consistency of the oil leakage valve mounting seat.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] The device for controlling the angular orientation of the oil leakage valve mounting seat during assembly comprises,

[0007] An angular orientation positioning block, which comprises a positioning profile, and the profile of the positioning profile is obtained by intersecting a plane perpendicular to the center axis of the oil leakage valve mounting seat with the cross-sectional profile of the oil leakage valve mounting seat with three lugs;

[0008] A reference length control block, to which the angular orientation positioning block is connected;

[0009] A baffle, which is connected to the reference length control block away from the angular orientation positioning block, and the baffle comprises a reference surface perpendicular to the reference length control block, and the distance from any point on the positioning profile to the reference surface is equal to the distance dimension of the corresponding point in the assembly drawing of the oil leakage valve mounting seat to the end surface of the mounting edge of the head of the casing of the afterburner cylinder.

[0010] As an option, the angular orientation positioning block is a cubic block, and a rectangular slot is formed in one side surface of the cubic block, the bottom surface of the rectangular slot is the positioning profile, and the positioning profile comprises two lug profiles.

[0011] As an alternative, the angular positioning block, the baffle is welded on the reference length control block.

[0012] The oil leakage valve mounting seat assembly angular control method using the aforementioned device comprises,

[0013] Step one, find the oil leakage valve mounting seat bottom hole position on the force cylinder shell, and make the reference surface of the baffle adhere to the head mounting edge end surface of the force cylinder shell and move along the end surface until the positioning profile of the angular positioning block is located above the oil leakage valve mounting seat bottom hole.

[0014] Step two, assemble the oil leakage valve mounting seat to the bottom hole, and ensure that the outer contour of the oil leakage valve mounting seat completely adheres to the positioning profile of the angular positioning block.

[0015] Step three, positionally weld the oil leakage valve mounting seat, and remove the oil leakage valve mounting seat assembly angular control device.

[0016] Compared with the prior art, the angular control device of the present application has simple structure and low cost, and all operators use the same control device and assembly method, which is good in consistency, easy to operate, and high in assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 Angular control device schematic diagram;

[0018] Figure 2 Angular control device and part cooperation state diagram;

[0019] In the figure, 1- angular positioning block, 2- reference length control block, 3- baffle, 4- positioning profile, 5- oil leakage valve mounting seat. DETAILED DESCRIPTION

[0020] The present application will be further described below in conjunction with the drawings and specific embodiments, but it should not be understood that the scope of the subject matter described herein is limited to the following embodiments. Any modifications, replacements and changes made according to ordinary technical knowledge and conventional means without departing from the above technical ideas of the present application are included in the scope of the present application.

[0021] To ensure the angular assembly of the oil leakage valve mounting seat 5, the oil leakage valve mounting seat assembly angular control device shown in the figure is used to limit the oil leakage valve mounting seat 5, Figure 1 Figure 1 The structure of the angular control device is shown, which realizes the size control of the center of the oil leakage valve mounting seat 5 to the head mounting edge end surface of the force cylinder shell and the angular control of the oil leakage valve mounting seat 5.

[0022] The angular control device is designed and manufactured in the following manner: ​

[0023] a) Design the angular control device as the female mold of the oil leakage valve mounting base 5, as shown in Figure 2. That is, take a part of the cross section containing two lugs on the oil leakage valve mounting base 5 as the positioning surface 4 of the angular positioning block 1.

[0024] b) Connect the angular control device to a straight plate (reference length control block 2), and add a baffle 3 to the other end of the straight plate to ensure that the dimension from the center of the oil leakage valve mounting seat to the baffle 3 meets the drawing requirements, such as Figure 1 As shown, including Figure 1 The L, B, and R in the figure, as well as the other dimensions not marked in the figure.

[0025] When assembling the oil leak valve mounting base 5, the surface of the baffle 3 is attached to the mounting edge end face of the head of the booster cylinder shell. The oil leak valve mounting base 5 is assembled onto the bottom hole and fits against the positioning profile 4 of the angular positioning block 1. The operation is simple and convenient, and the dimensions are guaranteed. The assembly process is as follows:

[0026] (1) Take the oil leak valve mounting base 5 and the booster cylinder shell;

[0027] (2) Locate the bottom hole corresponding to the oil leakage valve mounting seat 5 on the booster cylinder shell;

[0028] (3) The reference surface of the baffle 3 of the angular control device is attached to the mounting edge end face of the head of the booster cylinder shell;

[0029] (4) Assemble the oil leak valve mounting base 5 into the bottom hole;

[0030] (5) Fit the oil leakage valve mounting base 5 with the positioning surface 4 of the angular positioning block 1;

[0031] (6) Position welding oil leakage valve mounting base 5;

[0032] (7) Remove the angular control device.

[0033] Contents not described in detail in this specification are prior art known to those skilled in the art. Although illustrative specific embodiments of the invention have been described above to facilitate understanding by those skilled in the art, it should be understood that the invention is not limited to the scope of the specific embodiments. Various modifications are readily apparent to those skilled in the art as long as they fall within the spirit and scope of the invention as defined and determined by the appended claims, and all inventions utilizing the concept of this invention are protected.

Claims

1. An oil leak valve mounting base assembly angular orientation control device characterized by: Comprising, An angular positioning block (1) containing a positioning profile on it, the profile of the positioning profile (4) is obtained by intersecting a plane perpendicular to the center axis of the oil leakage valve mounting seat (5) with the cross-sectional profile of the oil leakage valve mounting seat (5) with three lugs, and then taking the difference; A reference length control block (2), the angular positioning block (1) is connected to the reference length control block (2); A baffle plate (3) is connected to the reference length control block (2) away from the angular positioning block (1), and the baffle plate (3) contains a reference surface perpendicular to the reference length control block (2), the distance from any point on the positioning profile (4) to the reference surface is equal to the distance from the corresponding point in the assembly drawing of the oil leakage valve mounting seat (5) to the installation edge surface of the force cylinder shell housing head.

2. The leak-off valve mounting seat assembly angular orientation control device of claim 1, wherein: The angular positioning block (1) is a cubic block, a rectangular slot is opened on one side surface of the cubic block, the bottom surface of the rectangular slot is the positioning profile (4), and the positioning profile (4) contains two lug profiles.

3. The leak-off valve mounting base assembly angular orientation control device of claim 1, wherein: The angular positioning block (1) and the baffle plate (3) are welded on the reference length control block (2).

4. The method for controlling the angular orientation of the installation of the leak-off valve seat using the device according to claim 1, characterized in that: Comprising, Step one, find the position of the oil leakage valve mounting seat bottom hole on the force cylinder shell housing, and fit the reference surface of the baffle plate (3) on the installation edge surface of the force cylinder shell housing head and move along the surface until the positioning profile (4) of the angular positioning block (1) is located above the oil leakage valve mounting seat bottom hole; Step two, assemble the oil leakage valve mounting seat (5) to the bottom hole, and ensure that the outer profile of the oil leakage valve mounting seat (5) is completely fitted with the positioning profile (4) of the angular positioning block (1); Step three, position the oil leakage valve mounting seat (5) and remove the oil leakage valve mounting seat assembly angular control device.

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