CN115091196B

CN115091196B - Aerospace engine combustion chamber flame tube preassembling equipment

Info

Publication number: CN115091196B
Application number: CN202211028846.7A
Authority: CN
Inventors: 王鹏
Original assignee: Beijing Chengli Technology Co ltd
Current assignee: Beijing Chengli Technology Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-11-01
Anticipated expiration: 2042-08-26
Also published as: CN115091196A

Abstract

The invention discloses an aerospace engine combustion chamber flame tube preassembling device, which belongs to the technical field of aero-engine processing equipment and comprises a handle, a power mechanism, a roller, a fixing mechanism, a first detection mechanism, a second detection mechanism, a lens, a flame tube and a collector, wherein the roller is installed on the lower side of the fixing mechanism, the handle is installed on the side face of the fixing mechanism, the handle and the roller are used for driving a device to integrally move, the flame tube and the collector are installed on the fixing mechanism, the flame tube and the collector are positioned through the fixing mechanism, the lens is installed on the fixing mechanism, the installation condition of the collector is observed through the lens, the first detection mechanism and the second detection mechanism are installed on the fixing mechanism, the first detection mechanism is used for detecting the compatibility of an outer port of the flame tube, and the second detection mechanism is used for detecting the compatibility of a connecting part of the flame tube and the collector.

Description

Aerospace engine combustion chamber flame tube preassembling equipment

Technical Field

The invention relates to the technical field of aero-engine processing equipment, in particular to pre-assembly equipment for a flame tube of a combustion chamber of an aerospace engine.

Background

The combustion chamber is a device in which fuel or propellant is combusted to generate high-temperature gas, and is combustion equipment made of high-temperature-resistant alloy materials. The fuel is combusted in the combustion chamber. The combustion chamber is an important component of rocket engines. The combustion chamber is an aircraft engine combustion unit formed by assembling parts such as a flame tube, a collector and the like, and is the most important component of an aircraft engine. When the aircraft engine is assembled into a machine, the flame tube and the collector are assembled into an integral flame tube and collector, and the coordination is kept after the connection, namely the concentricity is kept within a certain error.

The combustion chambers are divided into three types, namely a branch pipe-shaped combustion chamber, a connected pipe-shaped combustion chamber and an annular combustion chamber, the most used number is the circular pipe-shaped combustion chamber at present, the connected pipe-shaped combustion chamber is also called a circular pipe-shaped combustion chamber, and the combined pipe-shaped combustion chamber is multipurpose on an engine of an axial-flow type gas compressor. The union-pipe-shaped combustion chamber is an annular cavity formed by a plurality of independent pipe-shaped flame tubes which are uniformly arranged between the inner shell and the outer shell along the circumferential direction, and adjacent flame tubes are connected by the union-pipe. The union pipe type combustion chamber has the advantages of compact structure, small diameter and capacity of transferring torque to improve the integral rigidity of the engine and reduce the structural weight of the engine. The number of the flame tubes of the union-pipe-shaped combustion chamber is generally 8 to 16.

The invention patent with publication number CN107671537B discloses a device for pre-assembling a flame tube assembling table of an aircraft engine combustion chamber, and the technical scheme of the invention is as follows: the device comprises a base, a supporting shaft fixedly arranged on the center of the base, a rotary table sleeved on the outer surface of the supporting shaft and rotatably mounted on the base and used for mounting a platform component collector, a calibrating template fixedly mounted above the rotary table and a bolt assembly used for angularly positioning the flame tube, a cover plate mounted at the top end of the supporting shaft through a fastener and used for limiting and fastening the flame tube of the platform component, a first calibrating pin used for calibrating the connection coordination between the platform component collector and the flame tube, and a second calibrating pin used for calibrating the coordination of an outer port of the flame tube.

Disclosure of Invention

Aiming at the technical problems, the technical scheme of the invention is as follows: the flame tube type gas detector comprises a flame tube, a collector, a fixing mechanism, a first detection mechanism and a second detection mechanism, wherein the fixing mechanism is provided with a pressure plate, the pressure plate is disc-shaped, the pressure plate is provided with a plurality of holes, the fixing mechanism is also provided with a first disc and a second disc, the first disc and the second disc are both provided with a plurality of holes, the arrangement mode and the number of the holes on the first disc and the second disc are the same as those of the pressure plate, and the corresponding holes are coaxial; the pressure plate, the first plate and the second plate are sequentially arranged along the gravity direction.

Install the flame tube between the partial hole of pressure disk and first dish, install the collector between the partial hole of first dish and second dish, flame tube and collector quantity equal, second dish upside and downside are provided with the digital mark respectively, indicate the installer through the digital mark, and fixed establishment still is provided with the third dish, and the third dish is installed in second dish below, is provided with fixed subassembly between second dish and the third dish, fixes the collector through fixed subassembly.

A first detection mechanism is arranged on part of holes of the pressure plate, and the coordination of the outer port of the flame tube is detected through the first detection mechanism; and a second detection mechanism is arranged on part of holes of the first disc, and the coordination of the joint of the flame tube and the collector is detected through the second detection mechanism.

Furthermore, the holes on the pressure plate are composed of nine reference holes and a plurality of groups of scattering holes, the nine reference holes are distributed from the center to the edge at equal intervals along the radial direction of the pressure plate, each group of scattering holes are distributed at equal intervals along the circumferential direction by taking each reference hole as a reference in sequence, the number of each group of scattering holes is sequentially increased from the center to the edge, the number difference between two adjacent groups of scattering holes is one, and the number of the group of scattering holes with the least number is seven; the holes of the pressure plate and the first disc are stepped holes, the shapes of all the holes of the pressure plate and the first disc are consistent, and the diameter of the upper part of the holes of the pressure plate and the first disc is larger than that of the lower part of the holes of the pressure plate and the first disc along the gravity direction.

Furthermore, the fixing assembly is provided with connecting shafts, the connecting shafts are slidably mounted in a part of holes of the second plate, the number of the connecting shafts is equal to that of the collectors, the connecting shafts and the collectors are coaxial, the upper part of each connecting shaft is provided with a cylindrical slotted hole, the lower part of each connecting shaft is buckled with a clamping groove block, and the lower side of each clamping groove block is provided with a plurality of slotted holes; a plurality of clamping blocks are fixedly arranged above the third plate, the number of the clamping blocks is consistent with that of the holes of the pressing plate, and the shapes of the clamping blocks are consistent with those of the slotted holes of the clamping groove blocks.

Furthermore, each slot hole of each clamping groove block is internally provided with a circular hole, each clamping block upper surface is provided with a cylindrical protrusion, the circular protrusion of each clamping block is coaxial with the corresponding circular hole of the clamping groove block, and the track curve of the projection circle center of each clamping block cylindrical protrusion on the upper surface of the third disc is parallel to the track curve of the projection circle center of the hole of the pressure disc on the upper surface of the pressure disc.

Further, the first detection mechanism is provided with a first positioning seat, the first positioning seat is installed in a hole of the pressure plate and coaxial with the hole, a detection assembly is installed in the first positioning seat and provided with an inner shaft, two sections of unconnected inner shafts are installed in the first positioning seat along the radial direction, a hinge ball is hinged to the adjacent position of the two sections of inner shafts, an installation ring is fixedly installed on the upper portion of the hinge ball, a gap is reserved between the installation ring and the two sections of inner shafts to achieve swinging, the radius of the hinge ball is larger than that of the two sections of inner shafts, the radius of the hinge ball is equal to that of the installation ring, through holes are formed in the hinge ball and the one section of inner shafts, grooves are formed in the through holes of the hinge ball and the inner shafts, the depth of the grooves is smaller than that of the through holes, a detection needle is installed in the through hole of the hinge ball, and an installation column is installed in the through hole of the inner shaft.

Furthermore, the radius of the detection needle and the radius of the mounting column are equal to the radius of the through hole of the mounting ring, the radius of the detection needle is equal to the radius of the outer port of the flame tube, the radius of the hinge ball is equal to the radius of the through hole of the mounting ring, the lower parts of the outer surfaces of the detection needle and the mounting column are provided with a section of bulge, and the shape and the length of the bulge of the outer surfaces of the detection needle and the mounting column are consistent with the shape and the depth of the groove of the mounting ring.

Further, the erection column surface along axial direction equidistant fixed mounting have a plurality of annulars, a plurality of annulars all with first locating seat coaxial, detect the needle lower part and be provided with the toper arch, the bellied central line of toper and the coincidence of detection needle axis, the detection subassembly lower part is provided with magnet.

Further, a gap is reserved between the vertex of the conical projection and the outer surface of the magnet, and the ratio of the distance between the vertex of the conical projection and the spherical center of the hinged ball to the length of the detection needle is 1:10 to 1:15.

further, second detection mechanism be provided with the second positioning seat, the second positioning seat is installed in the hole of first dish and with the axle center, install the determine module on the second positioning seat, the magnetic head axle is installed to the inside determine module's of second positioning seat detection needle lower part, the magnetic head axle is installed in the hole of second dish and with the axle center, magnetic head axle upper portion is provided with hemisphere magnet, install in the collector port magnetic head axle surface lower part, magnetic head axle lower part is the hemisphere arch, the radius of the spherical arch in magnetic head axle lower part is greater than the radius of the cylindrical slotted hole of connecting axle.

Further, the second positioning seat up end fixed mounting have a supporting seat, the last detection subassembly of second positioning seat is located the supporting seat, the supporting seat is located inside the flame tube, highly being less than the height of flame tube of supporting seat, the highly length that is greater than the erection column of supporting seat, the length of erection column is greater than the length of detection needle, supporting seat upper portion fixed mounting has magnet, magnet and supporting seat are coaxial.

Compared with the prior art, the invention has the beneficial effects that: (1) According to the invention, through the arrangement of the position relation of the reference holes and the dispersion holes, the pre-assembly experiment can be carried out aiming at the combustion chambers with different numbers of flame tubes, so that the working efficiency is improved; (2) According to the invention, through the matching of the upper and lower positive and negative digital marks and the lens, the effect of prompting installers in the process of pre-assembling the flame tube is achieved, and the influence on the installation progress caused by installation errors is avoided; (3) Carry out the harmony through first detection mechanism and second detection mechanism to flame tube outer port and flame tube and collector junction and detect, the testing result is visual, and people observe the testing result more conveniently to more be favorable to discovering the problem that exists in the pre-assembly.

Drawings

Fig. 1 is a schematic view of the general structure of the present invention.

FIG. 2 is a top view of the platen structure of the present invention.

Fig. 3 is a bottom view of the chassis structure of the present invention.

FIG. 4 is a schematic diagram of the positional relationship between the reference holes and the dispersion holes according to the present invention.

Fig. 5 isbase:Sub>A sectional view taken alongbase:Sub>A linebase:Sub>A-base:Sub>A in fig. 4.

Fig. 6 is a partially enlarged view of a portion a in fig. 5.

FIG. 7 is a schematic view of a first disc structure according to the present invention.

Fig. 8 is a partially enlarged view of the portion B in fig. 7.

Fig. 9 is a partially enlarged view of C in fig. 7.

FIG. 10 is a schematic view of a second disk structure of the present invention.

Fig. 11 is a sectional view taken along line B-B in fig. 10.

Fig. 12 is a partially enlarged view of fig. 10 at D.

FIG. 13 is a schematic view of a third plate according to the present invention.

FIG. 14 is a schematic diagram showing the positional relationship of all the latch members in the present invention.

Fig. 15 is a partially enlarged view of E in fig. 14.

Fig. 16 is a schematic diagram showing the positional relationship of the collectors when 8 collectors are preassembled according to the present invention.

Fig. 17 is a schematic diagram of a cartridge structure according to the present invention.

Fig. 18 is a schematic view of the overall structure of the fixing assembly of the present invention.

Fig. 19 is a sectional view taken along line C-C in fig. 18.

Fig. 20 is a partially enlarged view of F in fig. 19.

FIG. 21 is a schematic view of the first and second sensing mechanisms of the present invention in relation to the position of the liner and collector.

FIG. 22 is a schematic diagram of the position relationship between the first detecting mechanism and the second detecting mechanism according to the present invention.

Fig. 23 is a partially enlarged view of fig. 22 at G.

Fig. 24 is a partially enlarged view of fig. 22 at H.

FIG. 25 is a schematic view of the connection of the surround ring and the mounting post of the present invention.

FIG. 26 is a broken view of the overall structure of the detecting unit of the present invention.

Reference numerals: 1-a handle; 2, a power mechanism; 3, rolling wheels; 4-a fixing mechanism; 5-a first detection mechanism; 6-a second detection mechanism; 7-a lens; 8-a flame tube; 9-a collector; 201-sliding shaft; 202-rotating shaft; 203-a sliding cylinder; 204-a rotary drum; 205-fixed jaw; 206-a first electric cylinder; 207-a second electric cylinder; 208-mounting the shaft; 209-lifting the column; 401-a chassis; 402-a platen; 403-a reference hole; 404-scattering holes; 405-a first disc; 406-a second disc; 407-third disc; 408-a pillar; 409-go sign; 410-lower signboard; 411-fixture block; 412-a slot-block; 413-a clamping block; 414-an arc-shaped plate; 415-a connecting shaft; 416-a spring; 417-a taxi shaft; 418-placing the tray; 501-a first positioning seat; 502-a surrounding ring; 503-detection pin; 504-a magnet; 505-a mounting post; 506-a hinged ball; 507-inner shaft; 508-a mounting ring; 601-a second positioning seat; 602-a head axis; 603-supporting seat.

Detailed Description

The technical solution of the present invention is further described below by way of specific embodiments.

In the following description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the following description of the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," and "connected" shall be construed broadly, and may be, for example, fixedly, detachably, or integrally connected, directly or indirectly connected through an intermediate medium, and the specific meaning of the terms in the present invention shall be specifically understood by those skilled in the art.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

As shown in the attached drawings 1 and 21, the roller 3 is installed on the lower side of the fixing mechanism 4, the handle 1 is installed on the side face of the fixing mechanism 4, the device is driven by the handle 1 and the roller 3 to move integrally, the flame tube 8 and the collector 9 are installed on the fixing mechanism 4, the flame tube 8 and the collector 9 are located through the fixing mechanism 4, the lens 7 is installed on the fixing mechanism 4, the installation condition of the collector 9 is observed through the lens 7, the first detection mechanism 5 and the second detection mechanism 6 are both installed on the fixing mechanism 4, the coordination of the outer port of the flame tube is detected through the first detection mechanism 5, and the coordination of the joint of the flame tube 8 and the collector 9 is detected through the second detection mechanism 6.

As shown in fig. 1, 21, 16 and 23, the fixing mechanism 4 is provided with a platen 402, the platen 402 is disc-shaped, the platen 402 is provided with a plurality of holes, the fixing mechanism 4 is further provided with a first disc 405 and a second disc 406, the first disc 405 and the second disc 406 are both provided with a plurality of holes, the arrangement and number of the holes on the first disc 405 and the second disc 406 are the same as those of the platen 402, and the corresponding holes are coaxial; the platen 402, the first tray 405, and the second tray 406 are arranged in order along the direction of gravity; a flame tube 8 is arranged between the press plate 402 and part of the holes of the first plate 405, a collector 9 is arranged between part of the holes of the first plate 405 and the second plate 406, the number of the flame tubes 8 and the number of the collectors 9 are equal, the upper side and the lower side of the second plate 406 are respectively provided with a digital mark, an installer is prompted through the digital marks, the fixing mechanism 4 is further provided with a third plate 407, the third plate 407 is arranged below the second plate 406, a fixing component is arranged between the second plate 406 and the third plate 407, and the collector 9 is fixed through the fixing component; a first detection mechanism 5 is arranged on part of holes of the pressure plate 402, and the coordination of the outer port of the flame tube is detected through the first detection mechanism 5; the second detection mechanism 6 is installed on part of the holes of the first disk 405, and the second detection mechanism 6 detects the coordination of the connection part of the flame tube 8 and the collector 9.

As shown in fig. 10 to 15, the number mark is provided with an upper signboard 409 and a lower signboard 410, the upper signboard 409 is provided with two groups, the lower signboard 410 is provided with eight groups, each group of the upper signboard 409 and the lower signboard 410 is provided with nine, the upper signboard 409 is fixedly installed on the upper side of the second disk 406, the lower signboard 410 is fixedly installed on the lower side of the second disk 406, the two groups of the upper signboard 409 are installed on both sides of the reference hole 403, the eight groups of the lower signboard 410 are distributed at equal intervals along the circumferential direction, and the side surfaces of each group of the upper signboard 409 and the lower signboard 410 along the center of the second disk 406 towards the edge direction are respectively engraved with numbers 8 to 16; the number on the side of the upper signboard 409 is positive, the number on the side of the lower signboard 410 is negative, the lens 7 is arranged below the second disc 406, the lens 7 is fixedly arranged on the upper side of the chassis 401, and the negative number on the side of the lower signboard 410 is reflected to be the positive number through the lens 7.

As shown in fig. 2 to 12, the holes on the platen 402 are formed by nine reference holes 403 and a plurality of groups of distribution holes 404, the nine reference holes 403 are distributed at equal intervals from the center to the edge along the radial direction of the platen 402, each group of distribution holes 404 is distributed at equal intervals along the circumferential direction by taking each reference hole 403 as a reference in sequence, the number of the distribution holes 404 in each group is sequentially increased from the center to the edge, the difference between the numbers of two adjacent groups of distribution holes 404 is one, and the number of the distribution holes 404 in the group with the least number is seven; the holes of the platen 402 and the first plate 405 are stepped holes, the holes of the platen 402 and the first plate 405 are all in the same shape, and the upper diameter of the holes of the platen 402 and the first plate 405 is larger than the lower diameter of the holes in the gravity direction.

As shown in fig. 14 to 20, the fixing assembly is provided with a connecting shaft 415, the connecting shaft 415 is slidably mounted in a part of the holes of the second plate 406, the number of the connecting shafts 415 and the number of the collectors 9 are equal and coaxial, the upper part of each connecting shaft 415 is provided with a cylindrical slot hole, the lower part of each connecting shaft 415 is buckled with a slot block 412, and the lower side of the slot block 412 is provided with a plurality of slot holes; a plurality of fixture blocks 411 are fixedly mounted above the third plate 407, the number of the fixture blocks 411 is consistent with that of holes of the pressure plate 402, and the shapes of the fixture blocks 411 are consistent with those of slotted holes of the fixture block 412; each slot hole of the slot clamping block 412 is provided with a circular hole, the upper surface of each clamping block 411 is provided with a cylindrical protrusion, the circular protrusion of each clamping block 411 and the corresponding circular hole of the slot clamping block 412 are coaxial, and the track curve of the projection circle center of each clamping block 411 cylindrical protrusion on the upper surface of the third plate 407 is parallel to the track curve of the projection circle center of the hole of the pressure plate 402 on the upper surface of the pressure plate 402.

As shown in fig. 20 to 26, a first detection mechanism 5 is provided with a first positioning seat 501, the first positioning seat 501 is installed in a hole of a platen 402 and has the same axis, a detection assembly is installed in the first positioning seat 501, the detection assembly is provided with an internal shaft 507, two sections of unconnected internal shafts 507 are installed in the first positioning seat 501 along the radial direction, a hinge ball 506 is hinged at the adjacent position of the two sections of internal shafts 507, a mounting ring 508 is fixedly installed on the upper portion of the hinge ball 506, a gap is left between the mounting ring 508 and the two sections of internal shafts 507 to realize swinging, the radius of the hinge ball 506 is larger than that of the two sections of internal shafts 507, the radius of the hinge ball 506 is equal to that of the mounting ring 508, through holes are formed in the hinge ball 506 and the one section of internal shafts 507, grooves are formed in the through holes of the hinge ball 506 and the internal shafts 507, the depth of the grooves is smaller than that of the through holes, a detection needle 503 is installed in the through hole of the hinge ball 506, and an installation column 505 is installed in the through hole of the internal shaft 507; the radiuses of the detection needle 503 and the mounting column 505 are equal to the radius of a through hole of the mounting ring 508, the radius of the detection needle 503 is equal to the radius of an outer port of the flame tube 8, the radiuses of the hinge ball 506 and the through hole of the mounting ring 508 are equal, the lower parts of the outer surfaces of the detection needle 503 and the mounting column 505 are respectively provided with a section of bulge, and the shapes and the lengths of the bulges of the outer surfaces of the detection needle 503 and the mounting column 505 are consistent with the shapes and the depths of grooves of the mounting ring 508.

As shown in fig. 18 to 26, a plurality of surrounding rings 502 are fixedly mounted on the outer surface of the mounting post 505 at equal intervals along the axial direction, the surrounding rings 502 are coaxial with the first positioning seat 501, a conical protrusion is arranged at the lower part of the detection needle 503, the central line of the conical protrusion coincides with the axial line of the detection needle 503, and a magnet 504 is arranged at the lower part of the conical protrusion; a gap is left between the top point of the conical projection and the outer surface of the magnet 504, and the ratio of the distance between the top point of the conical projection and the spherical center of the hinge ball 506 to the length of the detection needle 503 is 1:12; the second detection mechanism 6 is provided with a second positioning seat 601, the second positioning seat 601 is installed in the hole of the first disc 405 and has the same axle center, the second positioning seat 601 is provided with a detection assembly, the lower part of a detection needle 503 of the detection assembly inside the second positioning seat 601 is provided with a magnetic head shaft 602, the magnetic head shaft 602 is installed in the hole of the second disc 406 and has the same axle center, the upper part of the magnetic head shaft 602 is provided with a hemispherical magnet, the lower part of the outer surface of the magnetic head shaft 602 is installed in the port of the collector 9, the lower part of the magnetic head shaft 602 is a hemispherical bulge, and the radius of the spherical bulge at the lower part of the magnetic head shaft 602 is larger than the radius of the cylindrical slotted hole of the connecting shaft 415; the upper end face of the second positioning seat 601 is fixedly provided with a supporting seat 603, the detection assembly on the second positioning seat 601 is located in the supporting seat 603, the supporting seat 603 is located inside the flame tube 8, the height of the supporting seat 603 is smaller than that of the flame tube 8, the height of the supporting seat 603 is larger than that of the mounting post 505, the length of the mounting post 505 is larger than that of the detection pin 503, the upper part of the supporting seat 603 is fixedly provided with a magnet 504, and the magnet 504 and the supporting seat 603 have the same axis.

As shown in fig. 2 to 16, the chassis 401, the pressure plate 402, the first plate 405, the second plate 406, and the third plate 407 are all coaxial with the mounting shaft 208, a protrusion is disposed on an upper portion of an outer surface of the mounting shaft 208, the pressure plate 402 and the first plate 405 are slidably mounted on an outer surface of a portion of the mounting shaft 208 where the protrusion is disposed, the chassis 401 and the second plate 406 are fixedly mounted on an outer surface of a portion of the mounting shaft 208 where the protrusion is not disposed, the handle 1 is fixedly mounted on a side surface of the chassis 401, four rollers 3 are fixedly mounted on a lower side of the chassis 401, the rollers 3 have a self-locking function, a plurality of support posts 408 are fastened on an upper side of the chassis 401, and the second plate 406 is fixedly mounted on upper sides of the support posts 408.

As shown in fig. 1, fig. 3, and fig. 7 to fig. 13, sixteen first electric cylinders 206 and four second electric cylinders 207 are fixedly installed on the lower side of a chassis 401, eight sliding cylinders 203 and eight rotating cylinders 204 are fixedly installed on the upper side of the chassis 401, a plurality of protrusions are arranged on the outer surfaces of the sliding shafts 201, the sliding shafts 201 are slidably installed on the inner walls of the sliding cylinders 203, the rotating shafts 202 are slidably installed on the inner walls of the rotating cylinders 204, the sliding shafts 201 and the rotating shafts 202 are both connected with the extending ends of the first electric cylinders 206, the rotating shafts 202 can rotate on the inner walls of the rotating cylinders 204, a fixed claw 205 is buckled on the upper portion of the outer surface of each of the sliding shafts 201 and the rotating shafts 202, a first disc 405 is positioned by the plurality of fixed claws 205 on the sliding shafts 201 and the rotating shafts 202, and the central angle formed by the circumferential distribution of the sliding shafts 201 is less than 180 °; the third plate 407 is split type and is formed by four independent bodies through buckle connection, the third plate 407 is installed on the lifting column 209, the lifting column 209 and the extension end of the second electric cylinder 207 are fixedly installed, the lifting column 209 is installed on the chassis 401 in a sliding mode, the upper end face of the lifting column 209 is higher than the upper end faces of the sliding cylinder 203 and the rotating cylinder 204 in an initial state, and the upper end faces of the sliding shaft 201 and the rotating shaft 202 are lower than the upper end face of the lifting column 209 at the moment.

As shown in fig. 18 to 24, the placing plate 418 is rotatably installed on the holes of the second plate 406 and has the same axis, the number of the placing plate 418 is equal to that of the flame tube 8, the number of the flame tubes 8 and the number of the collectors 9 is 8 to 16, different numbers are selected according to different engines, a through hole is formed in the placing plate 418, the through hole of the placing plate 418 and the connecting shaft 415 have the same axis, the radius of the placing plate 418 is larger than that of the holes of the second plate 406, the radius of the through hole of the placing plate 418 is larger than that of the cylindrical slot of the connecting shaft 415, the radius of the through hole of the placing plate 418 is equal to that of the hemispherical protrusion at the lower part of the magnetic head shaft 602, four sliding grooves are formed in the placing plate 418, a sliding shaft 417 is fixedly installed in each sliding groove of the placing plate 418, a spring 416 is wound on the outer surface of the sliding shaft 417, an arc-shaped plate 414 is slidably installed on the outer surface of the sliding shaft 417, one end of the spring 416 is fixedly installed on the sliding shaft 417, the other end of the spring 416 is fixedly installed on the arc-shaped plate 414, a clamp 413 is fixedly installed on the inner side of the arc-shaped plate 414, and the clamp 413 is made of a sponge.

The invention discloses a working principle of pre-assembly equipment for a flame tube of a combustion chamber of an aerospace engine.

(1) The number of the engine flame tubes 8 and the number of the collectors 9 are determined according to a design drawing before work, the device is pushed to a pre-assembly place through the handle 1, then the roller 3 is self-locked, the clamping blocks 413, the arc-shaped plates 414, the connecting shaft 415 and the placing plate 418 in corresponding number are combined into a whole according to the number of the flame tubes 8 and the collectors 9, the combined whole is inserted into the datum hole 403 corresponding to the second plate 406 according to the identification of the identification plate 409, meanwhile, the rest combined whole is placed into the corresponding scattering hole 404 according to the inverted image of the lens 7, then the clamping groove block 412 is buckled at the lower part of the connecting shaft 415, then the collectors 9 are placed between the arc-shaped plates 414, the clamping blocks 413 are attached to the outer surfaces of the collectors 9 through the springs 416, and support is provided for the collectors 9.

(2) The four individual bodies of the third plate 407 are snap-fitted at the fitting shaft 208, the combined body of the third plate 407 is placed at the extended end of the second electric cylinder 207, then the second electric cylinder 207 is started, when the cylindrical protrusion at the latch 411 is inserted into the hole of the latch block 412, the second electric cylinder 207 is stopped, then the support 408 is snap-fitted on the upper side of the base plate 401, and the second plate 406 is supported.

(3) The first electric cylinder 206 below the sliding cylinder 203 is started, the sliding shaft 201 gradually rises, meanwhile, the first plate 405 is put down through the outer surface of the mounting shaft 208, the first plate 405 stops falling when falling onto the upper surface of the arc-shaped plate 414, the first electric cylinder 206 below the sliding cylinder 203 stops working when the upper end surface of the sliding shaft 201 exceeds the upper end surface of the first plate 405, the first electric cylinder 206 below the rotating cylinder 204 is started at the moment, the rotating shaft 202 gradually rises, when the upper end surfaces of the sliding shaft 201 and the rotating shaft 202 coincide, the first electric cylinder 206 below the rotating cylinder 204 stops working at the moment, the fixed claws 205 are buckled on the sliding shaft 201 and the rotating shaft 202, then, all the first electric cylinders 206 simultaneously drive the sliding shaft 201 and the rotating shaft 202 to fall, and all the first electric cylinders 206 stop working when the lower surfaces of the fixed claws 205 coincide with the first plate 405.

(4) A corresponding number of second positioning seats 601, support seats 603, surrounding rings 502, detection pins 503, magnets 504, mounting posts 505, hinge balls 506, inner shafts 507 and mounting rings 508 are combined into a corresponding number of whole bodies according to the number of flame tubes 8 and collectors 9, while a corresponding number of magnetic head shafts 602 are placed at the ports of the collectors 9 and the magnetic head shafts 602 are placed in the through holes of the placing plate 418, then the combined whole bodies are placed in the corresponding holes of the first plate 405, and then the flame tubes 8 are placed on the corresponding holes of the first plate 405 in the axial direction of the support seats 603.

(5) The platen 402 is slid along the outer surface of the mounting shaft 208, when the lower surface of the platen 402 falls on the upper surface of the flame tube 8, the platen 402 stops falling, and meanwhile, a corresponding number of first positioning seats 501, the surrounding ring 502, the detection pins 503, the mounting posts 505, the hinge balls 506, the inner shaft 507 and the mounting ring 508 are combined into a corresponding number of integers according to the number of the flame tubes 8 and the collectors 9, and the combined integers are placed into corresponding holes of the platen 402.

(6) When the concentricity of the outer port of the flame tube 8 and the hole on the corresponding pressure plate 402 has an error, the detection needle 503 will deflect under the magnetic force action of the outer port of the pressure plate 402 and the magnet 504, when the error is too large, the detection needle 503 will contact the surrounding ring 502, the hole on the outer surface of the flame tube can be observed, and the assembly is unqualified.

(7) When the concentricity of the flame tube 8 and the collector 9 is wrong, the detection pin 503 will deflect under the action of the hole of the first disk 405 and the magnet on the upper part of the magnetic head shaft 602, when the error is too large, the detection pin 503 will contact the surrounding ring 502, and the detection pin can be observed through the hole on the outer surface of the flame tube, which indicates that the assembly is not qualified.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An aerospace engine combustor liner preassembly device, comprising a combustor liner (8) and a collector (9), characterized in that: the detection device is characterized by further comprising a fixing mechanism (4), a first detection mechanism (5) and a second detection mechanism (6), wherein the fixing mechanism (4) is provided with a pressure plate (402), the pressure plate (402) is disc-shaped, a plurality of holes are formed in the pressure plate (402), the fixing mechanism (4) is further provided with a first disc (405) and a second disc (406), the first disc (405) and the second disc (406) are respectively provided with a plurality of holes, the arrangement mode and the number of the holes in the first disc (405) and the second disc (406) are the same as those of the pressure plate (402), and the corresponding holes are coaxial; the pressing plate (402), the first plate (405) and the second plate (406) are sequentially arranged along the gravity direction;

a flame tube (8) is arranged between partial holes of the pressure plate (402) and the first plate (405), a collector (9) is arranged between partial holes of the first plate (405) and the second plate (406), the number of the flame tubes (8) is equal to that of the collectors (9), the upper side and the lower side of the second plate (406) are respectively provided with a digital mark, an installer is prompted by the digital mark, the fixing mechanism (4) is further provided with a third plate (407), the third plate (407) is arranged below the second plate (406), a fixing component is arranged between the second plate (406) and the third plate (407), and the collector (9) is fixed by the fixing component;

a first detection mechanism (5) is arranged on part of holes of the pressure plate (402), and the coordination of the outer port of the flame tube is detected through the first detection mechanism (5); a second detection mechanism (6) is arranged on part of holes of the first disc (405), and the coordination of the connection part of the flame tube (8) and the collector (9) is detected through the second detection mechanism (6);

the holes in the pressing plate (402) are formed by nine reference holes (403) and a plurality of groups of scattering holes (404), the nine reference holes (403) are distributed from the center to the edge at equal intervals along the radial direction of the pressing plate (402), each group of scattering holes (404) are distributed at equal intervals along the circumferential direction by taking each reference hole (403) as the reference in sequence, the number of each group of scattering holes (404) is increased progressively from the center to the edge direction in sequence, the difference between the numbers of two adjacent groups of scattering holes (404) is 1, and the number of the group of scattering holes (404) with the least number is seven.

2. An aerospace engine combustor basket preassembly apparatus as claimed in claim 1, wherein: the holes of the pressure plate (402) and the first disc (405) are stepped holes, the shapes of all the holes of the pressure plate (402) and the first disc (405) are consistent, and the diameter of the upper part of the holes of the pressure plate (402) and the first disc (405) is larger than that of the lower part of the holes of the first disc (405) along the gravity direction.

3. An aerospace engine combustor basket preassembly apparatus as claimed in claim 2, wherein: the fixing assembly is provided with a connecting shaft (415), the connecting shaft (415) is slidably mounted in a part of holes of the second disc (406), the connecting shaft (415) and the collector (9) are equal in number and coaxial, the upper part of each connecting shaft (415) is provided with a cylindrical slotted hole, the lower part of each connecting shaft (415) is buckled with a clamping groove block (412), and the lower side of each clamping groove block (412) is provided with a plurality of slotted holes; a plurality of fixture blocks (411) are fixedly mounted above the third plate (407), the number of the fixture blocks (411) is the same as that of holes of the pressing plate (402), and the shapes of the fixture blocks (411) are the same as those of slotted holes of the clamping groove block (412).

4. An aerospace engine combustor basket preassembly apparatus as claimed in claim 3, wherein: every slotted hole of draw-in groove piece (412) in all be provided with circular hole, every fixture block (411) upper surface be provided with cylindrical protruding, the circular protruding coaxial axle center with the circular hole of draw-in groove piece (412) that corresponds of every fixture block (411), the orbit curve of the cylindrical protruding at the third dish (407) upper surface projection centre of a circle of every fixture block (411) is parallel with the orbit curve of the hole at the pressure disk (402) upper surface projection centre of a circle of pressure disk (402).

5. An aerospace engine combustor basket preassembly apparatus as claimed in claim 3, wherein: first detection mechanism (5) be provided with first locating seat (501), first locating seat (501) are installed in the hole of pressure disk (402) and coaxial, install detection component in first locating seat (501), detection component is provided with inside axle (507), inside radial direction installation two sections disconnected inside axle (507) of first locating seat (501), the adjacent department of two sections inside axle (507) articulates there is articulated ball (506), articulated ball (506) upper portion fixed mounting has collar (508), leave the clearance between collar (508) and two sections inside axle (507), the radius of articulated ball (506) is greater than the radius of two sections inside axle (507), the radius of articulated ball (506) equals with collar (508) radius, be provided with the through-hole on articulated ball (506) and one section inside axle (507), all be provided with the recess on the through-hole of articulated ball (506) and inside axle (507), the recess degree of depth all is less than the through-hole degree of depth, install in the through-hole of articulated ball (506) and examine measuring needle (503), install post mounting hole (505) in inside axle (507).

6. An aerospace engine combustor basket preassembly apparatus as claimed in claim 5, wherein: the radius of the detection needle (503) and the radius of the mounting column (505) are equal to the radius of a through hole of the mounting ring (508), the radius of the detection needle (503) is equal to the radius of an outer port of the flame tube (8), the radius of the hinge ball (506) is equal to the radius of the through hole of the mounting ring (508), the lower parts of the outer surfaces of the detection needle (503) and the mounting column (505) are respectively provided with a section of bulge, and the shape and the length of the bulge of the outer surfaces of the detection needle (503) and the mounting column (505) are consistent with the shape and the depth of a groove of the mounting ring (508).

7. An aerospace engine combustor basket preassembly apparatus as claimed in claim 6, wherein: the outer surface of the mounting column (505) is fixedly provided with a plurality of surrounding rings (502) at equal intervals along the axial direction, the surrounding rings (502) are coaxial with the first positioning seat (501), the lower part of the detection needle (503) is provided with a conical bulge, the central line of the conical bulge coincides with the axis of the detection needle (503), and the lower part of the detection assembly is provided with a magnet (504).

8. An aerospace engine combustor basket preassembly apparatus as claimed in claim 7, wherein: a gap is reserved between the vertex of the conical bulge and the outer surface of the magnet (504), the ratio of the distance between the vertex of the conical bulge and the spherical center of the hinge ball (506) to the length of the detection needle (503) is 1: 10-1: 15.

9. an aerospace engine combustor basket preassembly apparatus as claimed in claim 7, wherein: second detection mechanism (6) be provided with second positioning seat (601), second positioning seat (601) are installed in the hole of first dish (405) and coaxial, install the determine module on second positioning seat (601), magnetic head axle (602) are installed to the detection needle (503) lower part of the inside determine module of second positioning seat (601), magnetic head axle (602) are installed in the hole of second dish (406) and coaxial, magnetic head axle (602) upper portion is provided with hemisphere magnet, install in collector (9) port magnetic head axle (602) surface lower part, magnetic head axle (602) lower part is hemisphere arch, the radius of the spherical arch radius of magnetic head axle (602) lower part is greater than the radius of the cylindrical slotted hole of connecting axle (415).

10. An aerospace engine combustor basket preassembly apparatus as claimed in claim 9, wherein: second positioning seat (601) up end fixed mounting have supporting seat (603), the last detecting element of second positioning seat (601) is located supporting seat (603), supporting seat (603) are located inside flame tube (8), the height that highly is less than flame tube (8) of supporting seat (603), the height of supporting seat (603) is greater than the length of erection column (505), the length of erection column (505) is greater than the length of detection needle (503), supporting seat (603) upper portion fixed mounting has magnet (504), magnet (504) and supporting seat (603) are coaxial.