CN115957985B - Fuel nozzle tightness detection equipment for aerospace engine - Google Patents
Fuel nozzle tightness detection equipment for aerospace engine Download PDFInfo
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- CN115957985B CN115957985B CN202310105964.1A CN202310105964A CN115957985B CN 115957985 B CN115957985 B CN 115957985B CN 202310105964 A CN202310105964 A CN 202310105964A CN 115957985 B CN115957985 B CN 115957985B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention discloses a fuel nozzle tightness detection device of an aerospace engine, which belongs to the technical field of fuel nozzle detection and comprises a bottom plate, wherein a closed assembly is arranged on the bottom plate and comprises a lower sealing seat and a closed upper pressing plate, a fixing assembly and a sorting assembly are arranged on the lower sealing seat, the fixing assembly can realize automatic positioning and fixing of the fuel nozzle, manual installation and positioning are not needed, so that installation errors are reduced, the sorting assembly can realize control of a sorting rotating plate, and accordingly whether the tightness of the fuel nozzle is qualified or not is automatically classified, and through mutual matching of the closed assembly, the fixing assembly and the sorting assembly, the tightness of the fuel nozzle can be automatically detected, sorting and sorting are performed, so that manual auxiliary operation is reduced, and errors are reduced.
Description
Technical Field
The invention relates to the technical field of fuel nozzle detection, in particular to a device for detecting tightness of a fuel nozzle of an aerospace engine.
Background
The fuel nozzle has the functions of atomizing or vaporizing fuel, accelerating the formation of mixed gas, ensuring stable combustion and improving combustion efficiency, is a key component of an aircraft engine, and has good tightness which is directly related to the safety of an aerospace aircraft in the flight process besides the technical performance of a fuel system, so that the tightness test is required after the fuel nozzle is assembled, the conventional fuel nozzle tightness test equipment needs to observe or adopt test paper to detect whether kerosene seeps out from the periphery of the fuel nozzle to judge whether the tightness is qualified or not, and the process is complicated and wastes labor force.
The Chinese patent application with the bulletin number of CN214621608U discloses a device for detecting the tightness of a fuel nozzle of an aircraft engine, which comprises a base, wherein an upper seat is arranged right above the base, the base and the upper seat are fixedly connected through a cylindrical connector, and the cylindrical connector is positioned at the geometric centers of the base and the upper seat; the base is provided with an adapter, one end of the adapter is communicated with the annular channel, and the other end of the adapter is connected with the sealing tester through an M14 joint; the sealing sleeve is arranged at the bottom end of the threaded ejector rod, and the sealing sleeve can detect the tightness of the fuel nozzle, but needs to be manually installed and positioned, and needs to be manually observed to judge whether oil leaks or not, so that the error probability is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the device for detecting the tightness of the fuel nozzle of the aerospace engine, which solves the problems that the fuel nozzle is required to be installed and positioned manually, whether oil leakage exists is required to be observed and judged manually, and the error probability is high.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an aerospace engine fuel nozzle leakproofness check out test set, the on-line screen storage device comprises a base plate, be provided with airtight subassembly on the bottom plate, airtight subassembly includes sealed seat and airtight top board down, slidable mounting has sealed seat on the airtight top board, the last movable sealing thread sleeve that is provided with of airtight top board, symmetrical slidable mounting has sealed slide on the sealed seat down, be provided with fixed subassembly and separation subassembly on the sealed seat down, fixed subassembly includes 3 spline bars, spline bars slidable mounting is on sealed seat down, spline bars front end is fixed to be provided with fixedly pressing the piece, separation subassembly includes the separation rotating plate, separation rotating plate rotates and installs on sealed seat down, slidable mounting has separation slide and separation balladeur train on the sealed seat down, separation slide and separation balladeur train fixed connection, separation rotating plate's side fixed mounting has the plectane to select separately, separation balladeur train is last to be fixedly provided with separation arc thorn, separation plectane and separation arc thorn constitutes ratchet.
Further, the airtight assembly further comprises an airtight electric cylinder, the airtight upper pressing plate is fixedly arranged on a piston rod of the airtight electric cylinder, a spring is arranged between the airtight upper pressing plate and the upper sealing seat, the airtight upper pressing plate and the airtight threaded sleeve form a spiral pair, and the lower end of the airtight threaded sleeve is provided with a sealing gasket.
Further, the fixed assembly further comprises two supporting sliding frames, the two supporting sliding frames are symmetrically and slidably arranged on the lower sealing seat, supporting sliding plates are fixedly arranged on the supporting sliding frames, supporting sliding seats are symmetrically and slidably arranged on the lower sealing seat, the supporting sliding frames are in sliding fit with the corresponding supporting sliding seats, a bidirectional screw rod is rotatably arranged on the lower sealing seat, and the bidirectional screw rod and the supporting sliding seats form a screw pair.
Further, 3 drive column gears are rotatably installed on the lower sealing seat, a strip-shaped groove plate is rotatably installed on the drive column gears, a torsion spring is arranged between the drive column gears and the strip-shaped groove plate, a spline rod and the lower sealing seat form spline sliding fit, a sealed strip-shaped rotating plate is fixedly arranged on the spline rod, the sealed strip-shaped rotating plate is movably connected with the strip-shaped groove plate, and a drive arc-shaped rack is fixedly arranged on the drive column gear farthest from the sealed electric cylinder.
Further, the side surfaces of the sealing sliding plates are fixedly provided with sealing racks, the lower sealing seat is rotatably provided with two sealing column gears, the sealing column gears and the corresponding sealing racks form a gear-rack pair, a transmission group is arranged between the two sealing column gears, the sealing column gear farthest from the sealing electric cylinder is fixedly provided with an auxiliary column gear, and the arc-shaped rack and the auxiliary column gear are driven to form the gear-rack pair.
Further, the side fixed mounting of airtight rack has supplementary bottom plate, rotates on the supplementary bottom plate and installs supplementary bar and change the board, is provided with the torsional spring between supplementary bar change board and the supplementary bottom plate, and the side fixed mounting of supplementary bottom plate has the support arm to change the board, supports fixedly on the balladeur train and is provided with supplementary cylinder piece, and the symmetry is fixed on the lower seal seat and is provided with auxiliary support plate.
Further, the sorting assembly further comprises a sorting ratchet fixedly arranged on the upper sealing seat, a ratchet mechanism is formed when the sorting ratchet is jointed with the sorting circular plate, a spring is arranged between the sorting sliding frame and the lower sealing seat, an air pump is fixedly arranged on the lower sealing seat, an air outlet of the air pump is communicated with the interior of the lower sealing seat, a plurality of ratchets are arranged on the sorting circular plate, and a torsion spring is arranged between the sorting rotary plate and the lower sealing seat.
Further, 3 driving racks are fixedly arranged on the lower sealing seat, a gear pair is formed when the driving racks are in gear engagement with the driving column, conveying rollers are symmetrically and rotatably arranged on the bottom plate, and a conveying belt is arranged between the two conveying rollers.
Compared with the prior art, the invention has the beneficial effects that: (1) According to the invention, the fixing assembly is arranged, so that the automatic positioning and fixing of the fuel nozzle can be realized, and the manual installation and positioning are not required, thereby reducing the installation error. (2) According to the invention, the sorting assembly is arranged, so that the control of the sorting rotating plate can be realized, and the automatic sorting of whether the tightness of the fuel nozzle is qualified or not is realized. (2) According to the invention, through the mutual matching of the sealing assembly, the fixing assembly and the sorting assembly, the tightness of the fuel nozzle can be automatically detected, and sorting and classifying can be performed, so that manual auxiliary operation is reduced, and errors are reduced.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is an enlarged partial schematic view at a in fig. 1.
Fig. 3 is a cross-sectional view of a closure assembly of the present invention.
Fig. 4 is a schematic view of the structure of the seal slide plate of the present invention.
Fig. 5 is a schematic view of the structure of the supporting skateboard of the present invention.
Fig. 6 is a schematic structural view of the fixing assembly of the present invention.
Fig. 7 is a partially enlarged schematic view at B in fig. 6.
Fig. 8 is a partially enlarged schematic view at C in fig. 6.
Fig. 9 is a schematic view of the structure of the strip-shaped groove plate of the present invention.
Fig. 10 is a partially enlarged schematic view of fig. 9 at D.
FIG. 11 is a schematic view of the structure of the sorting assembly of the present invention.
Fig. 12 is a partially enlarged schematic illustration at E in fig. 11.
Fig. 13 is a side view of the overall structure of the present invention.
Reference numerals: 101-a bottom plate; 102-a lower sealing seat; 103-sealing the electric cylinder; 104-sealing an upper pressing plate; 105-sealing threaded sleeve; 106-an upper sealing seat; 107-a sealing gasket; 108-driving a rack; 109-drive post gear; 110-driving an arc-shaped rack; 111-conveyor belt; 112-a conveyor motor; 113-a transfer drum; 114-sealing the slide plate; 115-sorting rotating plate; 116-supporting the carriage; 117-spline bar; 118-fixing the pressing block; 119-supporting a slide plate; 120-a bidirectional screw rod; 121-supporting a motor; 122-supporting a slide; 123-a closed rack; 124-closed post gear; 125-drive train; 126-auxiliary bar-shaped rotating plate; 127-arm swivel plate; 128-auxiliary bottom plate; 129-auxiliary support plates; 130-auxiliary cylindrical blocks; 131-auxiliary post gears; 132-auxiliary block; 133-a closed bar-shaped rotating plate; 134-a bar-shaped groove plate; 135-sorting ratchet bars; 136-an air pump; 137-sorting slide plate; 138-sorting carriage; 139-sorting circular plates; 140-sorting arc-shaped ratchet bars.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples: referring to fig. 1-13, an aerospace engine fuel nozzle tightness detection device comprises a bottom plate 101, a sealing assembly is arranged on the bottom plate 101 and comprises a lower sealing seat 102, the lower sealing seat 102 is fixedly arranged on the bottom plate 101, a sealing electric cylinder 103 is fixedly arranged on the bottom plate 101, a sealing upper pressing plate 104 is fixedly arranged at the end of a piston rod of the sealing electric cylinder 103, an upper sealing seat 106 is slidably arranged on the sealing upper pressing plate 104, a spring is arranged between the sealing upper pressing plate 104 and the upper sealing seat 106, a sealing threaded sleeve 105 is movably arranged on the sealing upper pressing plate 104, the sealing upper pressing plate 104 and the sealing threaded sleeve 105 form a spiral pair, a sealing gasket 107 is arranged at the lower end of the sealing threaded sleeve 105, 4 conveying rollers 113,4 are rotatably arranged on the bottom plate 101 and symmetrically arranged on two sides of the lower sealing seat 102, a conveying belt 111 is arranged between conveying rollers 113 on the same side, two conveying motors 112 are fixedly arranged on the bottom plate 101, and an output shaft of the conveying motor 112 is fixedly connected with the corresponding conveying rollers 113.
The lower seal seat 102 is provided with a fixing component, the fixing component comprises 3 spline rods 117, the spline rods 117 are slidably mounted on the lower seal seat 102, the spline rods 117 and the lower seal seat 102 form spline sliding fit, the front ends of the spline rods 117 are fixedly provided with fixed pressing blocks 118, the lower seal seat 102 is symmetrically slidably mounted with support sliding frames 116, the support sliding frames 116 are fixedly provided with support sliding plates 119, the lower seal seat 102 is symmetrically slidably mounted with support sliding frames 122, the support sliding frames 116 are slidably fit with the corresponding support sliding frames 122, springs are arranged between the support sliding frames 116 and the support sliding frames 122, the lower seal seat 102 is rotatably mounted with a bidirectional screw rod 120, the bidirectional screw rod 120 and the support sliding frames 122 form a screw pair, the lower seal seat 102 is fixedly provided with a support motor 121, and an output shaft of the support motor 121 is fixedly connected with the bidirectional screw rod 120.
The support motor 121 is started to drive the bi-directional screw rod 120 to rotate, so that the two support sliding bases 122 move in opposite directions, that is, the two support sliding bases 119 move in opposite directions under the action of the springs between the support sliding bases 116 and the support sliding bases 122, that is, the distance between the two support sliding bases 119 is adjusted.
The lower sealing seat 102 is rotatably provided with 3 driving post gears 109, the driving post gears 109 are rotatably provided with strip-shaped groove plates 134, torsion springs are arranged between the driving post gears 109 and the strip-shaped groove plates 134, one ends of the torsion springs are fixedly connected to the driving post gears 109, the other ends of the torsion springs are fixedly connected to the strip-shaped groove plates 134, the spline rods 117 are fixedly provided with sealed strip-shaped rotating plates 133, the sealed strip-shaped rotating plates 133 are movably connected with the strip-shaped groove plates 134, the driving post gears 109 farthest from the sealed electric cylinders 103 are fixedly provided with driving arc racks 110, the lower sealing seat 102 is fixedly provided with 3 driving racks 108, and the driving racks 108 and the driving post gears 109 form a gear pair when being jointed.
According to the size of the detected fuel nozzle, the distance between the two supporting sliding plates 119 is adjusted, so that the step surface of the fuel nozzle can be freely placed on the supporting sliding plates 119, the fuel nozzle is placed on the supporting sliding plates 119, the airtight electric cylinder 103 is started to enable the airtight upper pressing plate 104 to move downwards, namely the upper sealing seat 106 is enabled to move downwards, further, the driving rack 108 and the driving column gear 109 are enabled to contact and drive the driving column gear 109 to rotate, under the action of the torsion spring between the driving column gear 109 and the bar-shaped groove plate 134, the bar-shaped groove plate 134 rotates synchronously, namely the bar-shaped groove plate 134 and the airtight bar-shaped rotating plate 133 move relatively, namely the driving spline rod 117 moves towards the direction close to the center of the lower sealing seat 102, finally, 3 fixed pressing blocks 118 are enabled to contact with the side surface of the fuel nozzle, namely the adjustment and fixation of the position of the fuel nozzle are completed, after the fixing of the fuel nozzle is completed, the spline rod 117 cannot move continuously, namely the bar-shaped groove plate 134 cannot rotate, at the moment, the upper sealing seat 106 moves downwards continuously, the torsion spring between the driving column gear 109 and the bar-shaped groove plate 134 is compressed.
The symmetrical sliding mounting has sealed slide 114 on the lower seal seat 102, the side of sealed slide 114 is all fixed mounting has airtight rack 123, rotate on the lower seal seat 102 and install two airtight post gears 124, airtight post gears 124 and corresponding airtight rack 123 constitute rack and pinion pair, be provided with drive group 125 between two airtight post gears 124, drive group 125 includes two band pulleys and a belt, two band pulleys in the drive group 125 are fixed mounting respectively on two airtight post gears 124, two band pulleys in the drive group 125 are connected through the belt in the drive group 125, fixed mounting has auxiliary post gear 131 on airtight post gear 124 furthest from airtight electric jar 103, drive arc rack 110 and auxiliary post gear 131 constitute rack and pinion pair.
The driving rack 108 moves downwards to drive the driving post gear 109 to rotate, simultaneously drives the arc-shaped rack 110 to synchronously rotate, namely drives the auxiliary post gear 131 to rotate, further drives the airtight post gear 124 to rotate, under the action of the airtight rack 123, the two sealing sliding plates 114 move downwards in the center direction of the sealing seat 102, under the action of the airtight electric cylinder 103, the lower end face of the upper sealing seat 106 is contacted with the upper end face of the lower sealing seat 102, namely, the driving rack 108 drives the driving post gear 109 to rotate 90 degrees, drives the arc-shaped rack 110 to synchronously rotate 90 degrees, namely, drives the auxiliary post gear 131 to rotate 2 circles, and the airtight post gear 124 synchronously rotates 2 circles, so that the two sealing sliding plates 114 are contacted, namely, the lower sealing seat 102, the upper sealing seat 106 and the two sealing sliding plates 114 form an airtight space, at this moment, under the action of the airtight electric cylinder 103, the airtight upper pressing plate 104 continues to move downwards, at this moment, namely, the spring between the airtight upper pressing plate 104 and the airtight upper sealing seat 106 is compressed, finally, the sealing gasket 107 at the lower end of the airtight threaded sleeve 105 contacts the upper end face of the fuel nozzle, namely, and the sealing of the fuel nozzle is completed.
The side fixed mounting of airtight rack 123 has auxiliary bottom plate 128, rotates on the auxiliary bottom plate 128 and installs auxiliary bar and change board 126, is provided with the torsional spring between auxiliary bar change board 126 and the auxiliary bottom plate 128, and the one end fixed connection of torsional spring is on auxiliary bar change board 126, and the other end fixed connection of torsional spring is on auxiliary bottom plate 128, and two auxiliary bottom plates 128 are close to fixed auxiliary block 132 that is provided with on airtight top board 104 center side, and auxiliary bar change board 126's side fixed mounting has support arm change board 127, and the fixed auxiliary cylinder piece 130 that is provided with on the support carriage 116, the fixed auxiliary support board 129 that is provided with of symmetry on lower seal seat 102.
The two seal sliding plates 114 move in the opposite direction near the center of the lower seal seat 102, the auxiliary bar rotating plate 126 contacts the auxiliary cylindrical block 130, the torsion spring between the auxiliary bar rotating plate 126 and the auxiliary cylindrical block 130 is compressed, the auxiliary bar rotating plate 126 rotates, the seal sliding plate 114 continues to move in the opposite direction near the center of the lower seal seat 102, the auxiliary bar rotating plate 126 is separated from the support sliding block 116, the auxiliary bar rotating plate 126 returns to the initial position, when the two seal sliding plates 114 move in the opposite direction, the auxiliary bar rotating plate 126 contacts the auxiliary cylindrical block 130, under the action of the auxiliary block 132, the auxiliary bar rotating plate 126 cannot rotate, namely, the support sliding block 116 moves synchronously with the seal sliding plate 114 under the action of the auxiliary bar rotating plate 126, the spring between the support sliding block 116 and the support sliding block 122 is compressed, namely, the two support sliding plates 119 move in the opposite direction, the support of the fuel nozzle is separated, the seal sliding plate 114 continues to move outwards, the support arm rotating plate 127 contacts the auxiliary supporting plate 129, the arm rotating plate 127 rotates under the action of the auxiliary supporting plate 129, namely, the auxiliary bar rotating plate 126 finally, the auxiliary bar rotating plate 126 is separated from the support sliding block 130 and the support sliding block 116 returns to the initial position 116 under the action of the support sliding block 116.
The lower seal seat 102 is provided with a sorting assembly, the sorting assembly comprises a sorting rotating plate 115, the sorting rotating plate 115 is rotatably arranged on the lower seal seat 102, a torsion spring is arranged between the sorting rotating plate 115 and the lower seal seat 102, one end of the torsion spring is fixedly connected to the lower seal seat 102, the other end of the torsion spring is fixedly connected to the sorting rotating plate 115, a sorting slide plate 137 and a sorting sliding frame 138 are slidably arranged on the lower seal seat 102, the sorting slide plate 137 is fixedly connected with the sorting sliding frame 138, a spring is arranged between the lower seal seat 102 and the sorting sliding frame 138, a sorting ratchet bar 135 is fixedly arranged on the upper seal seat 106, a sorting circular plate 139 is fixedly arranged on the side face of the sorting rotating plate 115, a plurality of ratchets are arranged on the sorting circular plate 139, a sorting arc ratchet bar 140 is fixedly arranged on the sorting sliding frame 138, the sorting circular plate 139 and the sorting arc ratchet bar 140 form a ratchet mechanism, when the sorting ratchet bar 135 and the sorting circular plate 139 are jointed, an air pump 136 is fixedly arranged on the lower seal seat 102, and an air outlet of the air pump 136 is communicated with the interior of the lower seal seat 102.
The conveyor belt 111 closer to the airtight electric cylinder 103 is a qualified product conveyor belt, the conveyor belt 111 farther from the airtight electric cylinder 103 is a disqualified product conveyor belt, the initial position of the sorting rotating plate 115 is that the end closer to the airtight electric cylinder 103 is close to the qualified product conveyor belt, the upper sealing seat 106 moves downwards, the sorting ratchet bar 135 moves downwards synchronously, the sorting ratchet bar 135 and the sorting circular plate 139 contact to drive the sorting circular plate 139 to rotate, a torsion spring between the sorting rotating plate 115 and the lower sealing seat 102 is compressed, when the lower sealing seat 102 and the upper sealing seat 106 contact, the sorting circular plate 139 is driven to rotate by 70 degrees under the action of the sorting ratchet bar 135, namely the sorting rotating plate 115 is driven to rotate by 70 degrees, the sorting circular plate 139 does not reset under the action of the sorting arc ratchet bar 140, so that the end of the sorting rotating plate 115 farther from the airtight electric cylinder 103 is close to the disqualified product conveyor belt, and after the sorting circular plate 139 rotates by 70 degrees, the sorting ratchet bar 135 is separated from the sorting circular plate 139 contact with the sorting circular plate 139.
After the lower sealing seat 102, the upper sealing seat 106 and the two sealing sliding plates 114 form a closed space, after the sealing gasket 107 and the fuel nozzles are in contact and seal, the air pump 136 is started, quantitative air is introduced into the lower sealing seat 102 to push the sorting sliding plates 137 to slide, the sorting sliding carriages 138 slide synchronously, springs between the sorting sliding carriages 138 and the sorting circular plates 139 are compressed, when the fuel nozzles are qualified, namely, no air is discharged from the center of the sealing threaded sleeve 105 through the fuel nozzles, the sorting circular plates 139 are separated from the sorting curved ratchet strips 140 due to the displacement of the sorting sliding plates 137, the sorting circular plates 139 are separated from the limitation of the sorting curved ratchet strips 140, the sorting circular plates 115 are reset and rotated for 70 degrees under the action of torsion springs between the lower sealing seat 102 and the sorting circular plates 115, the clamping of the fuel nozzles is released, the fuel nozzles fall onto the conveyor belt 111 from the sorting circular plates 115, and then the corresponding conveying motors 112 are started to finish the conveying of the qualified fuel nozzles.
If the tightness of the fuel nozzle is insufficient, that is, the fuel nozzle has gas leakage, so that the sorting slide plate 137 cannot move to the maximum displacement, that is, the sorting circular plate 139 and the sorting arc-shaped ratchet 140 cannot be disengaged, the clamping of the fuel nozzle is released, the fuel nozzle falls onto the conveyor belt 111 from the sorting rotary plate 115, and then the corresponding conveying motor 112 is started to complete the conveying of the unqualified fuel nozzle.
Working principle: according to the size of the detected fuel nozzle, different sealing threaded sleeves 105 are replaced, so that the sealing gasket 107 at the lower end of the sealing threaded sleeve 105 can be sealed with the upper end of the fuel nozzle, a supporting motor 121 is started to drive a bidirectional screw rod 120 to rotate, namely a supporting sliding seat 122 is driven to move, the adjustment of two supporting sliding plates 119 is completed, the distance between the two supporting sliding plates 119 can easily place the fuel nozzle on the supporting sliding plates 119, and the supporting sliding plates 119 support the fuel nozzle.
The fuel nozzle is placed on the supporting slide plate 119, the airtight cylinder 103 is started to enable the upper sealing seat 106 to be in contact with the lower sealing seat 102, the driving post gear 109 is driven to rotate for 90 degrees under the action of the driving rack 108, 3 spline rods 117 slide under the action of the bar-shaped groove plates 134, namely 3 fixed pressing blocks 118 are used for fixing the fuel nozzle, after the spline rods 117 cannot move, torsion springs between the driving post gear 109 and the bar-shaped groove plates 134 are compressed, the driving post gear 109 rotates for 90 degrees and simultaneously drives the arc-shaped rack 110 to synchronously rotate for 90 degrees, namely, under the action of the transmission group 125 and the auxiliary post gear 131, the two airtight post gears 124 are driven to rotate for 2 circles, namely, the two airtight slide plates 114 are driven to be in contact, namely, the lower sealing seat 102, the upper sealing seat 106 and the two airtight slide plates 114 form an airtight space.
The airtight upper pressing plate 104 continues to move downwards, the sealing gasket 107 contacts the upper end face of the fuel nozzle to form sealing, when the upper sealing seat 106 moves downwards, the sorting ratchet bars 135 synchronously move downwards, after the sorting circular plate 139 is driven to rotate for 70 degrees, the sorting ratchet bars 135 are separated from contact with the sorting circular plate 139, namely the sorting rotary plate 115 is driven to rotate for 70 degrees, so that the opening of the sorting rotary plate 115 faces to the disqualified product conveying belt.
And starting the air pump 136 to feed air into the lower sealing seat 102, if the product is qualified, namely driving the sorting sliding plate 137 to slide for the maximum displacement, so that the sorting arc-shaped ratchet bar 140 and the sorting circular plate 139 are separated from contact, returning the sorting rotary plate 115 to the initial position, enabling the opening of the sorting rotary plate 115 to face the qualified product bed conveyor belt, at the moment, starting the airtight electric cylinder 103 to drive the upper sealing seat 106 to move upwards, enabling the two sealing sliding plates 114 to move to two sides, under the action of the auxiliary strip rotary plate 126 and the auxiliary cylindrical block 130, enabling the supporting sliding plate 119 to move to two sides, loosening the supporting of the fuel nozzle, loosening the clamping of the fuel nozzle by the fixed pressing block 118, falling the fuel nozzle onto the conveyor belt 111 through the sorting rotary plate 115, starting the corresponding conveying motor 112 to drive the conveyor belt 111 to rotate, finishing conveying the qualified product, and continuing to move the upper sealing seat 106 upwards to return to the initial position, and returning all parts to the initial position.
If the product is a defective product, the sorting slide plate 137 cannot reach the maximum displacement, that is, the sorting circular plate 139 and the sorting arc-shaped ratchet 140 cannot be disengaged, the sorting rotary plate 115 cannot rotate, the clamping and supporting of the fuel nozzle are released, the fuel nozzle falls onto the conveyor belt 111 through the sorting rotary plate 115, the corresponding conveying motor 112 is started to drive the conveyor belt 111 to rotate, the conveying of the defective product is completed, then the upper sealing seat 106 continues to move upwards to return to the initial position, and all parts also return to the initial position.
And repeating the steps to finish detection and screening of the tightness of the fuel nozzle of the aerospace engine.
Claims (7)
1. The utility model provides an aerospace engine fuel nozzle leakproofness check out test set, includes bottom plate (101), its characterized in that:
the base plate (101) is provided with a sealing assembly, the sealing assembly comprises a lower sealing seat (102) and a sealing upper pressing plate (104), an upper sealing seat (106) is slidably arranged on the sealing upper pressing plate (104), a sealing threaded sleeve (105) is movably arranged on the sealing upper pressing plate (104), sealing sliding plates (114) are symmetrically slidably arranged on the lower sealing seat (102), and a sealing space is formed when the lower sealing seat (102), the upper sealing seat (106) and the two sealing sliding plates (114) are contacted;
the lower sealing seat (102) is provided with a fixing assembly and a sorting assembly, the fixing assembly comprises 3 spline rods (117), the spline rods (117) are slidably mounted on the lower sealing seat (102), the front ends of the spline rods (117) are fixedly provided with fixed pressing blocks (118), the sorting assembly comprises a sorting rotating plate (115), the sorting rotating plate (115) is rotatably mounted on the lower sealing seat (102), the lower sealing seat (102) is slidably mounted with a sorting sliding plate (137) and a sorting sliding frame (138), the sorting sliding plate (137) is fixedly connected with the sorting sliding frame (138), sorting circular plates (139) are fixedly mounted on the side surfaces of the sorting rotating plate (115), sorting arc-shaped ratchet bars (140) are fixedly arranged on the sorting sliding frame (138), and the sorting circular plates (139) and the sorting arc-shaped ratchet bars (140) form a ratchet mechanism;
the sorting assembly further comprises a sorting ratchet (135), the sorting ratchet (135) is fixedly arranged on the upper sealing seat (106), a ratchet mechanism is formed when the sorting ratchet (135) is connected with the sorting circular plate (139), a spring is arranged between the sorting sliding frame (138) and the lower sealing seat (102), an air pump (136) is fixedly arranged on the lower sealing seat (102), an air outlet of the air pump (136) is communicated with the interior of the lower sealing seat (102), a plurality of ratchets are arranged on the sorting circular plate (139), and a torsion spring is arranged between the sorting rotary plate (115) and the lower sealing seat (102);
after the lower sealing seat (102), the upper sealing seat (106) and the two sealing sliding plates (114) form a closed space, air is introduced into the lower sealing seat (102) through the air pump (136), if the product is qualified, the sorting sliding plate (137) is driven to slide by the maximum displacement amount, the sorting arc-shaped ratchet bar (140) and the sorting circular plate (139) are separated from contact, the sorting rotating plate (115) returns to the initial position, if the product is unqualified, the sorting sliding plate (137) cannot reach the maximum displacement amount, namely the sorting circular plate (139) and the sorting arc-shaped ratchet bar (140) cannot be separated from engagement, and the sorting rotating plate (115) cannot rotate.
2. The aerospace engine fuel nozzle tightness detection device according to claim 1, wherein: the sealing assembly further comprises a sealing electric cylinder (103), the sealing upper pressing plate (104) is fixedly arranged on a piston rod of the sealing electric cylinder (103), a spring is arranged between the sealing upper pressing plate (104) and the upper sealing seat (106), the sealing upper pressing plate (104) and the sealing threaded sleeve (105) form a spiral pair, and the lower end of the sealing threaded sleeve (105) is provided with a sealing gasket (107).
3. The aerospace engine fuel nozzle tightness detection device according to claim 2, wherein: the fixing assembly further comprises two supporting sliding carriages (116), the two supporting sliding carriages (116) are symmetrically and slidably arranged on the lower sealing seat (102), supporting sliding plates (119) are fixedly arranged on the supporting sliding carriages (116), supporting sliding seats (122) are symmetrically and slidably arranged on the lower sealing seat (102), the supporting sliding carriages (116) are in sliding fit with the corresponding supporting sliding seats (122), a bidirectional screw rod (120) is rotatably arranged on the lower sealing seat (102), and the bidirectional screw rod (120) and the supporting sliding seats (122) form a screw pair.
4. An aerospace engine fuel nozzle tightness detection device according to claim 3, wherein: the novel sealing device is characterized in that 3 driving column gears (109) are rotatably arranged on the lower sealing seat (102), a strip-shaped groove plate (134) is rotatably arranged on the driving column gears (109), a torsion spring is arranged between the driving column gears (109) and the strip-shaped groove plate (134), a spline rod (117) and the lower sealing seat (102) form spline sliding fit, a sealed strip-shaped rotating plate (133) is fixedly arranged on the spline rod (117), the sealed strip-shaped rotating plate (133) is movably connected with the strip-shaped groove plate (134), and a driving arc-shaped rack (110) is fixedly arranged on the driving column gear (109) farthest from the sealed electric cylinder (103).
5. The aerospace engine fuel nozzle tightness detection device according to claim 4, wherein: the side of sealed slide (114) is all fixed mounting has airtight rack (123), and two airtight post gears (124) are installed in the rotation on lower seal seat (102), and airtight post gears (124) and airtight rack (123) that correspond constitute the rack and pinion pair, are provided with drive group (125) between two airtight post gears (124), and fixed mounting has supplementary post gear (131) on airtight post gear (124) furthest apart from airtight electric jar (103), and drive arc rack (110) and supplementary post gear (131) constitute the rack and pinion pair.
6. The aerospace engine fuel nozzle tightness detection device of claim 5, wherein: the side fixed mounting of airtight rack (123) has auxiliary bottom plate (128), rotates on auxiliary bottom plate (128) and installs auxiliary bar and change board (126), is provided with the torsional spring between auxiliary bar changes board (126) and auxiliary bottom plate (128), and auxiliary bottom plate (128)'s side is fixed to be provided with auxiliary block (132), and auxiliary bar changes the side fixed mounting of board (126) and has support arm to change board (127), supports fixedly on balladeur train (116) and is provided with auxiliary cylinder piece (130), and the symmetry is fixed on lower seal seat (102) and is provided with auxiliary support board (129).
7. The aerospace engine fuel nozzle tightness detection device of claim 6, wherein: 3 driving racks (108) are fixedly arranged on the lower sealing seat (102), a gear pair is formed when the driving racks (108) and the driving column gear (109) are connected, conveying rollers (113) are symmetrically arranged on the bottom plate (101) in a rotating mode, and a conveying belt (111) is arranged between the two conveying rollers (113).
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| CN202310105964.1A CN115957985B (en) | 2023-02-13 | 2023-02-13 | Fuel nozzle tightness detection equipment for aerospace engine |
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| CN202310105964.1A CN115957985B (en) | 2023-02-13 | 2023-02-13 | Fuel nozzle tightness detection equipment for aerospace engine |
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| CN115957985A CN115957985A (en) | 2023-04-14 |
| CN115957985B true CN115957985B (en) | 2023-05-26 |
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| CN115957985A (en) | 2023-04-14 |
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