CN214789591U - Precise connecting flange for aircraft engine - Google Patents

Abstract

The utility model provides an accurate flange for aircraft engine, includes flange docking mechanism, flange docking mechanism includes grafting main part, splice body and cup joints the main part, cup joints the main part and cup joints the outer end of installing in the grafting main part, and the splice body joint is installed in the grafting main part and cup joints the outer end of main part, splice body and grafting main part threaded mounting are in the same place, the grafting main part is including inserting a section of thick bamboo, extrusion groove and solid fixed ring, it is as an organic whole with solid fixed ring fixed connection to insert a section of thick bamboo, the extrusion groove is evenly seted up in solid fixed ring's outer end, splice body includes bolt, taut strip, couple and extrusion piece, the couple is as an organic whole with taut strip fixed connection, the couple is hooking in the rear end of cup jointing the main part. The utility model discloses having improved promptly the grafting main part and having cup jointed the fastness and the compactness that the main part is connected, having saved the shared space of ring flange simultaneously, need not space and the holistic volume of equipment in the increase aircraft engine equipment because traditional flange, reach the purpose in optimization space.

Description

Precise connecting flange for aircraft engine

Technical Field

The utility model relates to an aerospace is adapting unit field for the equipment, concretely relates to precision flange for aircraft engine.

Background

With the rapid development of aerospace technology in China, the requirements on parts used in manufacturing aerospace equipment are higher and higher, and flange connection is a connecting part often required to be used in the aerospace equipment, for example, in an inner oil pipe of an aircraft engine, a flange is required to be used for sealing and connecting a pipeline. But the interior oil pipe flange of conventional aircraft mainly adopts on the market to constitute by two ring flanges side by side, and carry out the ring flange of butt joint through the bolt, the compactness and the fastness of this kind of ring flange connection do not reach the aircraft far away and to the high leakproofness of spare part, the requirement of high leakproofness and high strength, and the flange joint equipment of this kind of form, owing to adopt the mode that two the same ring flanges set up side by side, lead to flange joint equipment to need to occupy great space, the volume of aircraft engine equipment has been increased, and all need leave sufficient operating space when connecting or dismantling the flange, be not convenient for operate in the comparatively compact aircraft equipment of structure, bring great operation degree of difficulty for the staff.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate flange for aircraft engine aims at solving current flange because of the relatively poor user demand who can't be applicable to aircraft engine internal equipment of fastness and fastening nature, and the problem that occupation space is big simultaneously just is not convenient for install the problem of dismantling the operation.

The utility model discloses an accurate flange for aircraft engine lies in for the technical scheme who realizes that above-mentioned purpose adopts: the flange butt joint mechanism comprises a plug-in main body and a socket main body, wherein the socket main body is connected with the plug-in main body through a connecting main body;

the plug-in main body comprises a plug-in barrel and a fixing ring, the fixing ring is connected with the front end of the plug-in barrel into a whole in a straight-line manner, and extrusion grooves are formed in the outer side surface of the fixing ring at equal intervals along the circumferential direction;

the connecting main body comprises a tensioning strip, a hook and an extrusion block, the hook is sequentially connected with the rear end of the tensioning strip into a whole, the hook is hooked at the rear end of the sleeve-connected main body, the top end of the extrusion block is sequentially connected with the front end of the tensioning strip into a whole, the extrusion block is matched with the extrusion groove,

the socket joint main body comprises a sleeve, and the socket is sleeved outside the socket.

The utility model discloses an in the preferred embodiment, the connecting body still includes the bolt, be equipped with the screw hole in the extrusion inslot, the last front end that is close to of tensioning strip has seted up the perforation, the bolt pass the perforation with the screw hole is connected.

In another preferred embodiment of the present invention, a hook groove is formed at the rear end of the inner side of the sleeve, and the hook groove is adapted to the hook.

The utility model discloses an in another preferred embodiment, cup joint the main part and still include the draw-in groove, the draw-in groove has been seted up to telescopic surface along circumference equidistant, when the main part of connecting with cup joint the main part and be connected, the draw-in groove is arranged in to the straining strip.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the utility model discloses replace two traditional the same ring flanges into a grafting main part and one cup joint the main part to will cup joint the main part firmly and establish in the outside of grafting main part through the splice body, so improved the grafting main part promptly and cup jointed the fastness and the compactness that the main part is connected, saved the shared space of ring flange simultaneously, need not to increase space and the holistic volume of equipment in the aircraft engine equipment because traditional flange, reach the purpose in optimization space.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic structural view of the plug main body of the present invention;

FIG. 3 is a schematic view of the connecting body of the present invention;

fig. 4 is the utility model discloses a cup joint main part segmentation structure sketch.

In the figure: 1. a flange docking mechanism; 2. a plug-in main body; 3. a connecting body; 4. sleeving the main body; 5. inserting a cylinder; 6. a threaded hole; 7. extruding a groove; 8. a fixing ring; 9. a bolt; 10. tightening the strip; 11. hooking; 12. perforating; 13. extruding the block; 14. a hook groove; 15. a card slot; 16. a sleeve.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

Some exemplary embodiments of the invention have been described for illustrative purposes, and it is to be understood that the invention may be practiced otherwise than as specifically described.

The precision connection flange for the aircraft engine in this embodiment, as shown in fig. 1, includes flange docking mechanism 1, flange docking mechanism 1 includes grafting main part 2 and cup joints main part 4, cup joint main part 4 through connecting body 3 with grafting main part 2 is connected, and the concrete structure is as follows:

as shown in fig. 2, the plug main body 2 includes a plug barrel 5 and a fixing ring 8, the fixing ring 8 is disposed at the front end of the plug barrel 5, and specifically can be connected with the front end of the plug barrel 5 in a straight-forward manner, and a plurality of extrusion grooves 7 are disposed on the outer side surface of the fixing ring 8 at equal intervals along the circumferential direction;

as shown in fig. 3, the connecting body 3 includes a tightening strip 10, a hook 11 and an extrusion block 13, the number of the tightening strip 10 is the same as the number of the extrusion grooves 7, the hook 11 is disposed at the rear end of the tightening strip 10, and specifically can be connected with the rear end of the tightening strip 10 in a straight-forward manner to form a whole, the hook 11 is hooked at the rear end of the sleeve-connected body 4, the extrusion block 13 is disposed at the front end of the tightening strip 10, specifically can be connected with the top end of the extrusion block 13 and the front end of the tightening strip 10 in a straight-forward manner to form a whole, with reference to fig. 1 and 2, the extrusion block 13 is adapted to the extrusion grooves 7,

as shown in fig. 4, the socket main body 4 includes a sleeve 16, and the socket 5 is sleeved outside the socket 5.

So, when flange joint is carried out to needs, cup joint 4 covers earlier and establish on the section of thick bamboo 5 of inserting of grafting main part 2, then will draw the extrusion piece 13 of tight strip 10 front end and be connected with the extrusion groove 7 of grafting main part 2 front end, will draw the couple 11 of tight strip 10 rear end and cup joint the rear end of main part 4 and carry out the hook and be connected, so can be with grafting main part 2 and cup joint main part 4 and connect, accomplish flange joint promptly. Because connecting body 3 is in the outside of cup jointing main part 4, cup jointing main part 4 and overlapping the outside of locating grafting main part 2 again, so will cup joint the mode that main part 4 and grafting main part 2 are connected through connecting body 3, can improve the fastness of cup jointing main part 4 and connecting body 3 and being connected, prevent to cup joint main part 4 and break away from grafting main part 2, also improved the compactness of cup jointing main part 4 and grafting main part 2 and being connected simultaneously, improve the sealed effect of both connections.

In some preferred embodiments, as shown in fig. 3, the connecting body 3 further includes a bolt 9, as shown in fig. 2, a threaded hole 6 is provided in the pressing groove 7, as shown in fig. 3, a through hole 12 is provided on the tightening strip 10 near the front end, and referring to fig. 1, the bolt 9 passes through the through hole 12 to connect with the threaded hole 6.

Thus, the tightening strip 10 and the extrusion groove 7 can be firmly connected, that is, the front end of the socket body 4 and the front end of the plug body 2 are firmly and tightly connected.

In some preferred embodiments, as shown in fig. 4, the inner side of the sleeve 16 is provided with a hook groove 14 at the rear end, and the hook groove 14 is matched with the hook 11, so that the rear end of the tightening strip 10 is firmly connected with the rear end of the sleeve 16, even if the rear end of the tightening strip 10 is firmly and tightly connected with the rear end of the socket body 4.

In some preferred embodiments, as shown in fig. 4, the socket main body 4 further includes a locking groove 15, the locking groove 15 is formed on the outer surface of the sleeve 16 at equal intervals along the circumferential direction, and with reference to fig. 1 and 3, when the connecting main body 3 is connected to the socket main body 4, the tightening strip 10 is placed in the locking groove 15.

So, when carrying out flange joint, make in draw-in groove 15 can be arranged in to tensioning strip 10, make connecting body 3 can with cup joint main part 4 and closely laminate and be connected, improved compactness and the fastness that both connect, improved the roughness of flange equipment back surface simultaneously.

The use method comprises the following steps:

during installation, the sleeve-joint main body 4 is firstly sleeved on the inserting cylinder 5 of the inserting-joint main body 2, then the hook 11 positioned at the rear end of the tensioning strip 10 is hooked on the hook groove 14, then the tensioning strip is completely placed in the clamping groove 15, then the extrusion block 13 positioned at the front end of the tensioning strip 10 is pressed into the extrusion groove 7, and finally the bolt 9 is screwed into the threaded hole 6 through the through hole 12; when the device is disassembled, the bolt 9 is unscrewed by means of a wrench, the upper end of the tensioning strip 10 is not bound, the extrusion block 13 is lifted upwards to be separated from the extrusion groove 7, the front part of the tensioning strip 10 is made to upwards form elastic deformation, the tensioning strip 10 is pushed backwards, the hook 11 is made to be separated from the hook groove 14 on the sleeve body 4, the remaining tensioning strip 10 is operated in the same way, the connecting body 3 is to be disassembled, and finally the plug-in main body 2 and the sleeve body 4 are separated.

The utility model discloses utilize bolt 9 to compress tightly the front portion of tensioning strip 10 for extrusion piece 13 card is gone into to have formed forward deviant power in 7 inside simultaneously of extrusion groove, utilizes this deviant power to drive connecting body 3 and takes turns to the tensioning and cup joints main part 4 forward, thereby makes the equipment that cup joints main part 4 and grafting main part 2 can be firmly together, adopts connecting body 3 to connect grafting main part 2 and cup joints the mode of main part 4, has reduced the cross-sectional distance that occupies of flange, reaches the purpose in optimization space. Wherein, through the mode that draw-in groove 15 will be taut strip 10 joint, improved the roughness of the surface after the equipment, locate through sleeve 16 cover and insert the inseparable nature of guaranteeing the butt joint of the outer mode of a section of thick bamboo 5.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (4)

1. The utility model provides a precision flange for aircraft engine which characterized in that: the flange butt joint mechanism (1) comprises a plug-in main body (2) and a socket main body (4), wherein the socket main body (4) is connected with the plug-in main body (2) through a connecting main body (3);

the plug-in main body (2) comprises a plug-in barrel (5) and a fixing ring (8), the fixing ring (8) is arranged at the front end of the plug-in barrel (5), and extrusion grooves (7) are formed in the outer side surface of the fixing ring (8) at equal intervals along the circumferential direction;

the connecting main body (3) comprises a tensioning strip (10), a hook (11) and an extrusion block (13), the hook (11) is arranged at the rear end of the tensioning strip (10), the hook (11) is hooked at the rear end of the sleeving main body (4), the extrusion block (13) is arranged at the front end of the tensioning strip (10), and the extrusion block (13) is matched with the extrusion groove (7);

the socket joint main body (4) comprises a sleeve (16), and the plug-in barrel (5) is sleeved on the outer side of the plug-in barrel (5).

2. A precision attachment flange for an aircraft engine as defined in claim 1, wherein: connecting body (3) still include bolt (9), be equipped with screw hole (6) in extrusion groove (7), it has seted up perforation (12) to be close to the front end on tensioning strip (10), bolt (9) pass perforation (12) with screw hole (6) are connected.

3. A precision attachment flange for an aircraft engine as defined in claim 1, wherein: the inner side of the sleeve (16) is provided with a hook groove (14) at the rear end, and the hook groove (14) is matched with the hook (11).

4. A precision connection flange for an aircraft engine according to any one of claims 1 to 3, characterized in that: the socket joint main body (4) further comprises clamping grooves (15), the clamping grooves (15) are formed in the outer surface of the sleeve (16) at equal intervals along the circumferential direction, and when the connecting main body (3) is connected with the socket joint main body (4), the tensioning strip (10) is arranged in the clamping grooves (15).

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