CN210335821U

CN210335821U - Resilient material assembly quality

Info

Publication number: CN210335821U
Application number: CN201921143472.7U
Authority: CN
Inventors: 杨京京; 吉红; 崔雅文; 杜文军; 郭江飞
Original assignee: Chengdu Aircraft Industrial Group Co Ltd
Current assignee: Chengdu Aircraft Industrial Group Co Ltd
Priority date: 2019-07-20
Filing date: 2019-07-20
Publication date: 2020-04-17
Anticipated expiration: 2029-07-20

Abstract

The utility model discloses a resilient material assembly quality, which comprises a bush, be provided with solid block A and solid block B in the bush relatively, be provided with the wedge between solid block A and the solid block B, the both sides face contained angle of wedge is an, the contained angle that forms between solid block A and the solid block B is corresponding with an, an is 20 +/-5. Exert pressure downwards through the wedge, two inclined planes of wedge are outwards exerted force to solid block A and solid block B, make solid block A and solid block B laminate the resilience material extrusion on the inner wall of bush, guarantee that resilience material and bush internal surface laminating clearance are less than 1/3 of profile error, according to the inside dysmorphism structure of bush, the special frock of split design and the interior shape profile matching of bush, can guarantee the complete laminating assembly of resilience material and the interior shape of bush, and easy operation, assembly efficiency is high, improve the assembly qualification rate simultaneously.

Description

Resilient material assembly quality

Technical Field

The utility model belongs to the technical field of the aeroengine assembly laminating, concretely relates to resilient material assembly quality.

Background

In the design of an aircraft engine, special opening bushing structures are needed, and special materials need to be attached to the inside of the opening bushing to guarantee the service life of the bushing in the using process or avoid corrosion of other liquid and the like.

The patent number is CN201811381772.9, and application date is 2018-11-20, discloses an mounting tool and application method, including cylindrical contact site, cylindrical contact site one end is provided with cylindrical propulsion portion, and cylindrical contact site and cylindrical propulsion portion be the integrated into one piece structure, and the outer disc of cylindrical propulsion portion is provided with two marked lines, the cylindrical contact site other end is provided with the bush, and cylindrical contact site circumference terminal surface and the inseparable laminating of bush circumference terminal surface, the outer disc of bush is close to cylindrical contact site one side and is provided with aircraft accessory machine casket, the outer disc opposite side of bush is provided with engine accessory machine casket, and the bush passes through external seal rubber ring and engine accessory machine casket and aircraft accessory machine casket sealing connection, two bosss of bush are located the sealed cavity that aircraft accessory machine casket and engine accessory machine casket formed.

According to the patent, the diameter of the cylindrical contact part is smaller than the diameter of the excircle of the bushing, so that the phenomenon that the inner teeth of the aircraft accessory casing are scratched due to the fact that the diameter of the cylindrical contact part is too large is avoided; with bush circumference terminal surface complete contact, guarantee the work area of contact, the atress is even, be unlikely to in the course of the work because strike and make the dislocation between cylindrical contact site and the bush, but the bush is long more than about 1 meter, thickness is between 0.8~1.2mm, when laminating the material layer, because the material resilience is very strong, lay the material at the bush internal surface, the plug inserts from the length direction of bush, just can only guarantee that the plug inserts 20cm about after just unable normal motion, the resilience of material makes plug insertion process frictional force very big, if continue to increase and insert strength, because of the bush is thinner, probably lead to bush bending deformation, directly scrap.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a resilient material assembly quality can extrude the laminating on the inner wall of bush with resilient material.

The utility model discloses a realize through following technical scheme.

The utility model provides a resilient material assembly quality, includes the bush, be provided with solid block A and solid block B in the bush relatively, be provided with the wedge between solid block A and the solid block B, the both sides face contained angle of wedge is a, the contained angle that forms between solid block A and the solid block B is corresponding with a, a is 20 +/-5.

The bottom of wedge is the arc structure, and contacts with resilient material, the bottom width of wedge is 1~2 mm.

The upper ends of the solid blocks A and B are 2-3 mm higher than the opening of the bushing.

The outer surfaces of the solid blocks A and B correspond to the shape of the inner wall of the bushing.

The utility model discloses the beneficial effect who brings has.

1. Exert pressure downwards through the wedge, two inclined planes of wedge are outwards exerted force to solid block A and solid block B, make solid block A and solid block B laminate the resilience material extrusion on the inner wall of bush, guarantee that resilience material and bush internal surface laminating clearance are less than 1/3 of profile error, according to the inside dysmorphism structure of bush, the special frock of split design and the interior shape profile matching of bush, can guarantee the complete laminating assembly of resilience material and the interior shape of bush, and easy operation, assembly efficiency is high, improve the assembly qualification rate simultaneously.

2. The arc-shaped structure prevents the part from being accidentally injured when pressure is applied.

3. The upper end of the solid block is 2-3 mm higher than the opening of the bushing, so that pressure is applied to the wedge block in the later period of convenience, and the special material is subjected to plastic deformation.

4. The outer surface of the solid block corresponds to the inner wall of the bushing in shape, so that the rebound resilience material is completely attached to the bushing.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the wedge-shaped block of the present invention.

Reference numerals: 1. solid blocks a, 2, solid blocks B, 3, wedge blocks, 4, resilient material, 5, bushings.

Detailed Description

Example 1

As shown in fig. 1 to 2, a resilient material assembling device includes a bushing 5, a solid block a1 and a solid block B2 are oppositely arranged in the bushing 5, a wedge block 3 is arranged between the solid block a1 and the solid block B2, an included angle between two side faces of the wedge block 3 is a, an included angle formed between the solid block a1 and the solid block B2 corresponds to a, and a is 20 ± 5 °.

The assembly method comprises the following steps:

step one, pressing the special elastic material 4 from the length direction of the bush 5;

secondly, pressing the solid block A1 and the solid block B2 in the length direction of the bushing (5) respectively, and ensuring that the elastic material 4 is arranged between the bushing 5 and the solid block A1 and the solid block B2;

and step three, pressing the wedge block 3 into the opening of the bushing 5, applying pressure, taking out the wedge block 3 after the elastic material 4 is subjected to plastic deformation and the elastic material 4 is completely attached to the inner wall of the bushing 5, and finally taking out the solid block A1 and the solid block B2.

Exert pressure downwards through wedge 3, the two inclined planes of wedge 3 outwards exert force to solid block A1 and solid block B2, make solid block A1 and solid block B2 with the extrusion laminating of resilient material 4 on the inner wall of bush 5, guarantee that resilient material 4 and 5 internal surface laminating clearance are less than 1/3 of profile error, according to the inside dysmorphism structure of bush 5, the special frock of split design and 5 interior shape profile matching of bush, can guarantee the complete laminating assembly of resilient material 4 and 5 interior shape of bush, and easy operation, assembly efficiency is high, improve the assembly qualification rate simultaneously.

Example 2

The assembly method comprises the following steps:

The bottom of wedge 3 is the arc structure, and contacts with resilience nature material 4, the bottom width of wedge 3 is 1~2 mm.

The upper ends of the solid block A1 and the solid block B2 are 2-3 mm higher than the opening of the bushing 5.

The outer surfaces of the solid block a1 and the solid block B2 correspond to the inner wall profile of the bushing 5.

The arc-shaped structure prevents the part from being accidentally injured when pressure is applied.

The upper end of the solid block is higher than the opening of the bushing 5 by 2-3 mm, so that the later stage of applying pressure to the wedge block is facilitated, and the special material is subjected to plastic deformation.

The outer surface of the solid block corresponds to the inner wall of the bushing 5 in shape, so that the rebound resilience material is completely attached to the bushing.

The bottom of wedge 3 is the arc structure, and contacts with resilient material 4, the bottom width of wedge 3 is 1 mm.

The upper ends of the solid block A1 and the solid block B2 are 2mm higher than the opening of the bushing 5.

The bottom of wedge 3 is the arc structure, and contacts with resilient material 4, the bottom width of wedge 3 is 2 mm.

The upper ends of the solid block A1 and the solid block B2 are 3mm higher than the opening of the bushing 5.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. A resilient material fitting device comprising a bush (5), characterized in that: be provided with solid block A (1) and solid block B (2) relatively in bush (5), be provided with wedge (3) between solid block A (1) and solid block B (2), the both sides face contained angle of wedge (3) is a, the contained angle that forms between solid block A (1) and the solid block B (2) is corresponding with an, an is 20 +/-5.

2. A resilient material mounting assembly as defined in claim 1, wherein: the bottom of wedge (3) is the arc structure, and contacts with resilient material (4), the bottom width of wedge (3) is 1~2 mm.

3. A resilient material mounting assembly as defined in claim 1, wherein: the upper ends of the solid block A (1) and the solid block B (2) are 2-3 mm higher than the opening of the bushing (5).

4. A resilient material mounting assembly as defined in claim 1, wherein: the outer surfaces of the solid blocks A (1) and B (2) correspond to the inner wall of the bushing (5).