CN116008090B - Aeroengine combustion chamber casing internal pressure test device - Google Patents
Aeroengine combustion chamber casing internal pressure test device Download PDFInfo
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- CN116008090B CN116008090B CN202310119721.3A CN202310119721A CN116008090B CN 116008090 B CN116008090 B CN 116008090B CN 202310119721 A CN202310119721 A CN 202310119721A CN 116008090 B CN116008090 B CN 116008090B
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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
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Abstract
The invention discloses an aeroengine combustion chamber casing internal pressure test device, which belongs to the technical field of casing processing equipment and comprises a support frame, a casing, an upper layer disc, an inflation mechanism, a lifting mechanism and an adjusting mechanism, wherein the support frame is provided with a base, the casing is rotatably arranged on the base, the upper layer disc is slidably arranged on the base, a first side rod and a second side rod are fixedly arranged on the side surface of the base, the first side rod is connected with the lifting mechanism, the lifting mechanism is connected with the upper layer disc, the adjusting mechanism is provided with a power assembly, the power assembly is connected with the second side rod, a sealing assembly is arranged on the upper layer disc, the sealing assembly is connected with the power assembly, an air pump is arranged on the upper side of the base, and gas is input through the air pump so as to complete an internal pressure test.
Description
Technical Field
The invention relates to the technical field of casing processing equipment, in particular to an aero-engine combustion chamber casing internal pressure test device.
Background
The combustion chamber casing bears high temperature, high pressure and large pneumatic load in the use process, is one of main bearing parts of the aeroengine, is an important component of the aeroengine, and has strict use requirements on strength, rigidity, sealing performance of the end face and whether welding seams leak or not. The combustion chamber casing consists of a diffuser and a detachable shell, wherein the detachable shell is of a thin-wall double-layer cylinder structure. The combustor casing failure mode may be explosive and cause dangerous effects to the aircraft, resulting in catastrophic failure. Therefore, strength and service life of the combustion chamber casing must be verified to ensure flight safety.
The Chinese patent publication No. CN105486508A discloses a device for hydraulic test of a detachable casing of a combustion chamber casing of an aero-engine, which has the technical scheme that: the invention relates to a device for testing the internal pressure of a combustion chamber casing of an aeroengine, which comprises a base, a bottom plate, an inner cylinder body, a cover plate, an outer cylinder body, a plug, a hydraulic annular closed space, a hydraulic medium injection pipeline interface assembly, a hydraulic medium discharge pipeline interface assembly and an air discharge pipeline interface assembly in the annular closed space, wherein the bottom plate is arranged on the base and is connected with the lower end of a detachable casing of a part to be tested, the inner cylinder body is arranged in the detachable casing, the lower end of the inner cylinder body is connected with the bottom plate or the upper end of the base, the cover plate is connected with the upper end of the detachable casing, the outer cylinder body is arranged at the lower end of the outer cylinder body, the plug is used for plugging an opening on the detachable casing, the hydraulic annular closed space is formed by the bottom plate, the inner cylinder body, the cover plate, the outer cylinder body and the detachable casing, and the part to be tested, and the hydraulic medium injection pipeline interface assembly, the hydraulic medium discharge pipeline interface assembly and the air discharge pipeline interface assembly in the annular closed space are arranged on the part forming the hydraulic annular closed space.
Disclosure of Invention
Aiming at the technical problems, the invention adopts the following technical scheme: the utility model provides an aeroengine combustion chamber receiver internal pressure test device, includes support frame, receiver, upper disc, inflating mechanism, elevating system and adjustment mechanism, the support frame be provided with the base, the receiver rotate and install on the base, base upside sliding mounting has upper disc, base side fixed mounting has first side lever and second side lever, elevating system be provided with first dwang and motion subassembly, first dwang rotates and installs the base upside, first dwang links to each other with motion subassembly, motion subassembly installs on first side lever, motion subassembly links to each other with upper disc, the air pump is installed to the base upside, through air pump input gas and then accomplish internal pressure test.
The adjusting mechanism is provided with a fixed ring and a power assembly, the fixed ring and the casing are coaxial, the fixed ring is fixedly arranged at the lower part of the outer surface of the casing, the first rotating rod is slidably arranged on the outer surface of the fixed ring, the fixed ring is connected with the power assembly, the power assembly is arranged on the second side rod, the upper disc is provided with a sealing assembly, and the sealing assembly is connected with the power assembly.
Further, the outer surface of the fixed ring is provided with a section of arc chute, the central angle of the arc chute is 90 degrees, the first rotating rod is slidably mounted in the arc chute of the fixed ring, the outer surface of the fixed ring is provided with a cuboid bulge, the central line of the length direction of the cuboid is perpendicular to the axis direction of the casing, and the fixed ring is rotatably mounted on the upper side of the base.
Further, first side lever and second side lever fixed mounting in the opposite both sides of base, first side lever and second side lever upper surface all are provided with the rectangle through-hole, the motion subassembly be provided with first slider, first slider slidable mounting is in the rectangle through-hole of first side lever, first connecting rod is installed in first slider upper surface rotation, first connecting rod is connected with first dwang rotation, first slider upper surface still rotates and installs the second connecting rod, the second connecting rod is connected with upper disc rotation, first side lever and first dwang upside all are provided with circular through-hole, the circular through-hole radius of first dwang and first side lever equals, when first dwang slides to the side and is parallel with first side lever side, the circular through-hole of first dwang and first side lever is coaxial, upper disc lower surface and receiver upper surface coincidence this moment.
Further, the power component be provided with second slider and lift post, second slider slidable mounting is in the rectangle through-hole of second side lever, second side lever side fixed mounting has the electric jar, electric jar extension end and second slider fixed connection, second slider upper surface rotation installs the third connecting rod, the third connecting rod rotates with the cuboid arch of solid fixed ring to be connected, second slider lower surface rotation install dismantle the pole, dismantle pole and lift post lower part rotation and be connected, lift post slidable mounting is on the base, lift post and receiver coaxial.
Further, the seal assembly be provided with the second dwang, the second dwang be provided with four, every second dwang all rotates and installs upper disc upside, second dwang is equidistant along the circumferencial direction and distributes on upper disc upper surface, two right-angle plates are installed to upper disc top, the first seat of rotating is installed in right-angle plate side rotation, the fourth connecting rod of rotating installs on the first seat of rotating, second dwang upside is provided with the rectangle spout, third seat of rotating is installed to the rectangle spout slidable of second dwang, third seat of rotating surface fixed mounting has the second seat of rotating on two second dwang, second seat of rotating is connected with the fourth connecting rod rotation, link to each other through the telescopic link between two other third seat of rotating.
Further, the sealing assembly is further provided with a sliding column, the sliding column is fixedly arranged on the upper side of the second sliding block, a pushing rod is slidably arranged on the sliding column, and the pushing rod is fixedly connected with the telescopic rod.
Further, each second rotating rod is hollow, a driving rod is slidably arranged in each second rotating rod, a sealing block is fixedly arranged at one end of each driving rod extending out of the second rotating rod, an air cylinder is arranged in each second rotating rod, and each sealing block is connected with the extension end of the air cylinder in the second rotating rod.
Further, a circular through hole is formed in the middle of the upper disc, and when the lower surface of the upper disc is overlapped with the upper surface of the casing, the sealing block connected with the second rotating seat is coaxial with the circular through hole in the middle of the upper disc.
Further, the inside fixed mounting of receiver has the closing cap, and the receiver lower part is provided with circular through-hole, closing cap and lift post coaxial, the closing cap be annular, the lift post is the step shaft, lift post upper portion is provided with the end cover, lift post upper portion end cover radius is greater than closing cap inner wall radius, lift post middle part radius is less than closing cap inner wall radius, lift post lower part radius equals the circular through-hole radius of receiver lower part.
Further, the sealing block is annular, and when the lower surface of the upper end cover of the lifting column is contacted with the inside of the casing, the sealing block connected with the telescopic rod is concentric with the circular through hole in the middle position of the upper layer disc.
Compared with the prior art, the invention has the beneficial effects that: (1) The lifting mechanism and the adjusting mechanism are arranged, and the outer layer and the inner layer of the combustion chamber casing are detected by matching the lifting mechanism and the adjusting mechanism without waiting, so that the detection flow is saved; (2) According to the invention, the lifting mechanism and the adjusting mechanism are arranged, and the quick sealing of the casing is realized through the cooperation of the lifting mechanism and the adjusting mechanism, so that the influence of insufficient sealing on the test result is avoided; (3) According to the invention, the supporting frame and the adjusting mechanism are arranged, and the rotation of the casing during detection is realized through the cooperation of the supporting frame and the adjusting mechanism, so that the internal pressure condition of the casing in the working process is simulated.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic diagram of a connection relationship between a support frame and a casing according to the present invention.
Fig. 3 is a schematic diagram of a connection relationship between a casing and a lifting mechanism according to the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3 at a.
FIG. 5 is a schematic view showing the positional relationship between the base and the sliding column according to the present invention.
Fig. 6 is a partially enlarged schematic view of fig. 5 at B.
FIG. 7 is a schematic view showing the positional relationship between the upper plate and the inflator mechanism according to the present invention.
Fig. 8 is an enlarged partial schematic view at C in fig. 7.
FIG. 9 is a schematic diagram of the connection between the support frame and the upper tray according to the present invention.
Fig. 10 is a partially enlarged schematic view of fig. 9 at D.
Fig. 11 is a partially enlarged schematic illustration of fig. 9 at E.
FIG. 12 is a front view of the connection between the outer shell of the case and the lifting column.
Fig. 13 is a sectional view taken along the direction A-A in fig. 12.
Reference numerals: 1-a supporting frame; 2-a case; 3-upper tray; 4-an inflation mechanism; 5-a lifting mechanism; 6-an adjusting mechanism; 101-a base; 102-outer layer rod; 103-upper plate; 104-a first side bar; 105-a second side bar; 106, an electric cylinder; 107-inner layer rod; 201-a casing outer layer cylinder; 202-a casing inner layer cylinder; 401-an air pump; 402-an intermediate cylinder; 403-gas delivery pipe; 501-a first link; 502-a first slider; 503-a first rotating lever; 504-a second link; 505-clamping jaw; 506-fixing shaft; 507-fixing bolts; 601-a second rotating lever; 602-closing blocks; 603-a second slider; 604-a securing ring; 605-a third link; 606-a sliding column; 607-removing the rod; 608-lifting column; 609-pins; 610-right angle plate; 611-a first rotating seat; 612-fourth link; 613-a second rotating seat; 614-arc grooves; 615-drive rod; 616—push rod; 617-a third rotary seat; 618-a telescopic rod; 619-closure cap.
Detailed Description
The technical scheme of the invention is further described in the following by combining with the specific embodiments.
As shown in fig. 1 to 13, a base 101 is arranged on a support frame 1, a casing 2 is provided with a casing outer layer cylinder 201 and a casing inner layer cylinder 202, the casing outer layer cylinder 201 and the casing inner layer cylinder 202 are coaxial, the casing inner layer cylinder 202 is fixedly arranged inside the casing outer layer cylinder 201, the casing outer layer cylinder 201 is rotatably arranged on the base 101, two inner layer rods 107 are fixedly arranged on the upper side of the base 101, an upper layer disc 3 is slidably arranged between the two inner layer rods 107, a first side rod 104 and a second side rod 105 are fixedly arranged on the side surface of the base 101, a lifting mechanism 5 is provided with a first rotating rod 503 and a moving component, the first rotating rod 503 is rotatably arranged on the upper side of the base 101, the first rotating rod 503 is connected with the moving component, the moving component is arranged on the first side rod 104, the moving component is connected with the upper layer disc 3, an air pump 401 is arranged on the upper side of the base 101, and an air pump 401 is input through the air pump 401 so as to complete an internal pressure test; the adjustment mechanism 6 is provided with a fixed ring 604 and a power component, the fixed ring 604 is coaxial with the casing 2, the fixed ring 604 is fixedly arranged at the lower part of the outer surface of the casing 2, the first rotating rod 503 is slidably arranged at the outer surface of the fixed ring 604, the fixed ring 604 is connected with the power component, the power component is arranged on the second side rod 105, the upper disc 3 is provided with a sealing component, and the sealing component is connected with the power component.
As shown in fig. 2 to 13, an arc chute is arranged on the outer surface of the fixed ring 604, the central angle of the arc chute is 90 degrees, the first rotating rod 503 is slidably installed in the arc chute of the fixed ring 604, a cuboid bulge is arranged on the outer surface of the fixed ring 604, the central line of the length direction of the cuboid is perpendicular to the axial direction of the outer casing tube 201, and the fixed ring 604 is rotatably installed on the upper side of the base 101; the first side rod 104 and the second side rod 105 are fixedly arranged on two opposite sides of the base 101, rectangular through holes are formed in the upper surfaces of the first side rod 104 and the second side rod 105, a first sliding block 502 is arranged on the moving assembly, the first sliding block 502 is slidably arranged in the rectangular through holes of the first side rod 104, a first connecting rod 501 is rotatably arranged on the upper surface of the first sliding block 502, the first connecting rod 501 is rotatably connected with the first rotating rod 503, a second connecting rod 504 is rotatably arranged on the upper surface of the first sliding block 502, the second connecting rod 504 is rotatably connected with the upper disc 3, circular through holes are formed in the upper sides of the first side rod 104 and the first rotating rod 503, the radius of the circular through holes of the first rotating rod 503 is equal to the radius of a pin 609, when the first rotating rod 503 slides to the side surface parallel to the side surface of the first side rod 104, the circular through holes of the first rotating rod 503 and the first side rod 104 are coaxial, and at the moment, the lower surface of the upper disc 3 coincides with the upper surface of the inner layer drum 202 of the casing.
As shown in fig. 1 to 12, the power assembly is provided with a second slide block 603 and a lifting column 608, the second slide block 603 is slidably mounted in a rectangular through hole of the second side rod 105, an electric cylinder 106 is fixedly mounted on the side surface of the second side rod 105, the extension end of the electric cylinder 106 is fixedly connected with the second slide block 603, a third connecting rod 605 is rotatably mounted on the upper surface of the second slide block 603, the third connecting rod 605 is rotatably connected with a cuboid protrusion of the fixed ring 604, a dismounting rod 607 is rotatably mounted on the lower surface of the second slide block 603, the dismounting rod 607 is rotatably connected with the lower part of the lifting column 608, the dismounting rod 607 is connected with the second slide block 603 through a pin 609, the lifting column 608 is slidably mounted on the base 101, and the lifting column 608 is coaxial with the casing 2; the sealing assembly is provided with second rotating rods 601, the second rotating rods 601 are four, each second rotating rod 601 is rotatably arranged on the upper side of the upper layer disc 3, the second rotating rods 601 are distributed on the upper surface of the upper layer disc 3 at equal intervals along the circumferential direction, a right angle plate 610 is fixedly arranged on the side surface of each inner layer rod 107, a first rotating seat 611 is rotatably arranged on the side surface of the right angle plate 610, a fourth connecting rod 612 is rotatably arranged on the first rotating seat 611, a rectangular sliding groove is arranged on the upper side of the second rotating rod 601, a third rotating seat 617 is slidably arranged in the rectangular sliding groove of the second rotating rod 601, a second rotating seat 613 is fixedly arranged on the outer surface of the third rotating seat 617 on the two second rotating rods 601, the second rotating seat 613 is rotatably connected with the fourth connecting rod 612, and the other two third rotating seats 617 are connected through telescopic rods 618 in a split type.
As shown in fig. 2 to 12, the sealing assembly is further provided with a sliding column 606, the sliding column 606 is fixedly arranged on the upper side of the second sliding block 603, a pushing rod 616 is slidably arranged on the sliding column 606, and the pushing rod 616 is fixedly connected with a telescopic rod 618; each second rotating rod 601 is hollow, a driving rod 615 is slidably arranged in each second rotating rod 601, a sealing block 602 is fixedly arranged at one end of each driving rod 615 extending out of the interior of each second rotating rod 601, an air cylinder is arranged in each second rotating rod 601, and each sealing block 602 is connected with the extension end of the air cylinder in each second rotating rod 601; the middle position of the upper layer disc 3 is provided with a circular through hole, and when the lower surface of the upper layer disc 3 is overlapped with the upper surface of the outer casing tube 201, the sealing block 602 connected with the second rotating seat 613 is concentric with the circular through hole in the middle position of the upper layer disc 3.
As shown in fig. 3 to 13, a sealing cover 619 is fixedly installed on the upper surface of the inner casing cylinder 202, a circular through hole is formed in the lower portion of the inner casing cylinder 202, the sealing cover 619 is coaxial with the lifting column 608, the sealing cover 619 is annular, the lifting column 608 is a stepped shaft, an end cover is arranged on the upper portion of the lifting column 608, the radius of the end cover on the upper portion of the lifting column 608 is larger than the radius of the inner wall of the sealing cover 619, the radius of the middle portion of the lifting column 608 is smaller than the radius of the inner wall of the sealing cover 619, and the radius of the lower portion of the lifting column 608 is equal to the radius of the circular through hole on the lower portion of the inner casing cylinder 202; the closing block 602 is annular, and when the lower surface of the upper end cover of the lifting column 608 is contacted with the upper surface of the inner layer barrel 202 of the casing, the closing block 602 connected with the telescopic rod 618 is coaxial with the circular through hole in the middle position of the upper layer disc 3.
As shown in fig. 4 to 13, two outer layer rods 102 are fixedly installed on the upper side of the base 101, an upper layer plate 103 is fixedly installed on the upper side of the outer layer rods 102, an air pump 401 is fixedly installed on the upper side of the upper layer plate 103, the output end of the air pump 401 is connected with a middle cylinder 402, an air pipe 403 is installed on the lower portion of the middle cylinder 402, the lower surface of the air pipe 403 is located below the upper surface of the outer layer cylinder 201 of the casing, when all sealing blocks 602 are coaxial with the middle circular through holes of the upper layer plate 3, circular through holes are formed in the middle of all sealing blocks 602, and the radius of the circular through holes formed by the four sealing blocks 602 is equal to that of the air pipe 403.
As shown in fig. 1 to 10, an arc-shaped groove 614 is formed in the upper surface of the upper layer disc 3, the center line of the arc-shaped groove 614 is coaxial with the middle circular through hole of the upper layer disc 3, four clamping claws 505 are mounted on the outer surface of the outer layer barrel 201 of the casing along the circumferential direction, the clamping claws 505 are fixedly mounted on the outer surface of the inner layer barrel 202 of the casing through fixing bolts 507, a fixing shaft 506 is fixedly mounted on the side surface of the clamping claws 505, and the fixing shaft 506 is located in the arc-shaped groove 614.
As shown in fig. 2 to 8, the first side bar 104 and the second side bar 105 are fixedly installed on two opposite sides of the base 101, rectangular through holes are formed in the upper surfaces of the first side bar 104 and the second side bar 105, a plurality of circular through holes are formed in the side surfaces of the rectangular through holes of the first side bar 104 and the second side bar 105 at equal intervals, the diameter of the circular through holes of the first side bar 104 and the second side bar 105 is equal to that of the pin 609, circular through holes are formed in the side surfaces of the first sliding block 502 and the second sliding block 603, and the diameter of the circular through holes of the first sliding block 502 and the second sliding block 603 is equal to that of the pin 609.
The working principle of the device is as follows.
Firstly, a plurality of pins 609 are prepared in advance, one pin 609 is inserted into the joint of the dismounting rod 607 and the second sliding block 603, the first rotating rod 503 is rotated, the first rotating rod 503 drives the first connecting rod 501 to move, the first connecting rod 501 drives the first sliding block 502 to move, the first sliding block 502 drives the upper layer disc 3 to slide along the inner layer rod 107 through the second connecting rod 504, when the circular through holes on the upper surfaces of the first rotating rod 503 and the first side rod 104 are coaxial, one pin 609 is inserted into the circular through holes on the upper surfaces of the first rotating rod 503 and the first side rod 104, and at the moment, the lower surface of the upper layer disc 3 coincides with the upper surface of the inner layer cylinder 202 of the machine case.
And (II) the electric cylinder 106 is started to push the second sliding block 603 to slide along the rectangular through hole of the second side rod 105, the second sliding block 603 drives the lifting column 608 to move downwards through the dismounting rod 607, and when the end cover at the upper part of the lifting column 608 is contacted with the upper surface of the inner barrel 202 of the casing, the electric cylinder 106 stops working.
When the upper layer disc 3 slides along the inner layer rod 107, the second rotating rod 601 is driven to rotate by the fourth connecting rod 612 and the second rotating seat 613, the second rotating rod 601 drives the sealing block 602 to rotate, and when the lower surface of the upper layer disc 3 is overlapped with the upper surface of the inner layer barrel 202 of the casing, under the action of an air cylinder in the second rotating rod 601, the two sealing blocks 602 connected with the second rotating seat 613 are coaxial with a circular through hole in the middle of the upper layer disc 3; when the second slide block 603 moves, the second slide block 603 drives the sliding column 606 to move, the sliding column 606 drives the pushing rod 616 to move, the pushing rod 616 drives the third rotating seat 617 to move, the third rotating seat 617 drives the second rotating rod 601 to rotate, when the upper end cover of the lifting column 608 contacts with the upper surface of the inner casing cylinder 202, under the action of the cylinder in the second rotating rod 602, the two sealing blocks 602 connected with the telescopic rod 618 are coaxial with the circular through holes in the middle of the upper disc 3, at this time, the upper part of the outer casing cylinder 201 is sealed through the sealing blocks 602, the gas pipe 403 and the upper disc 3, the inner casing cylinder 202 is sealed through the upper end cover of the lifting column 608 and the sealing cover 619, then the pin 609 at the joint of the second slide block 603 and the dismounting rod 607 is pulled out, and the pin 609 is inserted into the circular through holes in the side surfaces of the second slide block 603 and the second side rod 105.
And (IV) the air pump 401 starts to flush air into the casing outer cylinder 201 through the air pipe 403, so that a pressure test is carried out on the inner surface of the casing outer cylinder 201 and the outer surface of the casing inner cylinder 202, when the pressure test is required to be carried out on the inner surface of the casing inner cylinder 202, the lifting column 608 is lifted, the air in the casing outer cylinder 201 enters the casing inner cylinder 202, at the moment, the electric cylinder 106 is started, the fixed ring 604 is driven to rotate through the second sliding block 603, the fixed ring 604 drives the casing outer cylinder 201 to rotate, and a dynamic environment pressure test is carried out on the inner surface of the casing inner cylinder 202 through internal air.
Claims (7)
1. The utility model provides an aeroengine combustion chamber receiver internal pressure test device, includes support frame (1) and receiver (2), its characterized in that: the device is characterized by further comprising an upper layer disc (3), an inflation mechanism (4), a lifting mechanism (5) and an adjusting mechanism (6), wherein the supporting frame (1) is provided with a base (101), the casing (2) is rotatably arranged on the base (101), the upper layer disc (3) is slidingly arranged on the base (101), a first side rod (104) and a second side rod (105) are fixedly arranged on the side face of the base (101), the lifting mechanism (5) is provided with a first rotating rod (503) and a moving assembly, the first rotating rod (503) is rotatably arranged on the upper side of the base (101), the first rotating rod (503) is connected with the moving assembly, the moving assembly is arranged on the first side rod (104), the moving assembly is connected with the upper layer disc (3), an air pump (401) is arranged on the upper side of the base (101), and air is input through the air pump (401) to further complete an internal pressure test; the adjusting mechanism (6) is provided with a fixed ring (604) and a power assembly, the fixed ring (604) is coaxial with the casing (2), the fixed ring (604) is fixedly arranged at the lower part of the outer surface of the casing (2), the first rotating rod (503) is slidably arranged at the outer surface of the fixed ring (604), the fixed ring (604) is connected with the power assembly, the power assembly is arranged on the second side rod (105), the upper disc (3) is provided with a sealing assembly, and the sealing assembly is connected with the power assembly;
the outer surface of the fixed ring (604) is provided with a section of arc chute, the central angle of the arc chute is 90 degrees, the first rotating rod (503) is slidably arranged in the arc chute of the fixed ring (604), the outer surface of the fixed ring (604) is provided with a cuboid bulge, the central line of the length direction of the cuboid is perpendicular to the axial direction of the casing (2), and the fixed ring (604) is rotatably arranged on the upper side of the base (101);
the first side rod (104) and the second side rod (105) are fixedly arranged on two opposite sides of the base (101), rectangular through holes are formed in the upper surfaces of the first side rod (104) and the second side rod (105), a first sliding block (502) is arranged on the moving assembly, the first sliding block (502) is slidably arranged in the rectangular through holes of the first side rod (104), a first connecting rod (501) is rotatably arranged on the upper surface of the first sliding block (502), a second connecting rod (504) is rotatably arranged on the upper surface of the first sliding block (502), the second connecting rod (504) is rotatably connected with the upper disc (3), circular through holes are formed in the upper sides of the first side rod (104) and the first rotating rod (503), the radius of the circular through holes of the first rotating rod (503) is equal to that of the first side rod (104), when the first rotating rod (503) slides to the side surface of the first side rod (104) to be parallel to the side surface of the first side rod, the first rotating rod (501) and the upper disc (503) are coincident with the upper disc (2) and the lower disc (3) at the same time;
the power assembly is provided with a second sliding block (603) and a lifting column (608), the second sliding block (603) is slidably mounted in a rectangular through hole of a second side rod (105), an electric cylinder (106) is fixedly mounted on the side face of the second side rod (105), the extension end of the electric cylinder (106) is fixedly connected with the second sliding block (603), a third connecting rod (605) is rotatably mounted on the upper surface of the second sliding block (603), the third connecting rod (605) is rotatably connected with a cuboid protrusion of a fixed ring (604), a dismounting rod (607) is rotatably mounted on the lower surface of the second sliding block (603), the dismounting rod (607) is rotatably connected with the lower portion of the lifting column (608), the lifting column (608) is slidably mounted on the base (101), and the lifting column (608) is coaxial with the machine box (2).
2. The aero-engine combustor casing internal pressure test device according to claim 1, wherein: the sealing assembly is provided with second rotating rods (601), the second rotating rods (601) are provided with four, each second rotating rod (601) is rotatably mounted on the upper side of the upper disc (3), the second rotating rods (601) are distributed on the upper surface of the upper disc (3) at equal intervals along the circumferential direction, two right-angle plates (610) are mounted above the upper disc (3), first rotating seats (611) are rotatably mounted on the side faces of the right-angle plates (610), fourth connecting rods (612) are rotatably mounted on the first rotating seats (611), rectangular sliding grooves are formed in the upper sides of the second rotating rods (601), third rotating seats (617) are slidably mounted in the rectangular sliding grooves of the second rotating rods (601), second rotating seats (613) are fixedly mounted on the outer surfaces of the third rotating seats (617) on the two second rotating rods (601), the second rotating seats (613) are rotatably connected with the fourth connecting rods (612), and the other two third rotating seats (617) are connected through telescopic rods (618).
3. The aero-engine combustor casing internal pressure test device according to claim 2, wherein: the sealing assembly is further provided with a sliding column (606), the sliding column (606) is fixedly arranged on the upper side of the second sliding block (603), a pushing rod (616) is slidably arranged on the sliding column (606), and the pushing rod (616) is fixedly connected with the telescopic rod (618).
4. An aero-engine combustion-chamber casing internal pressure test device according to claim 3, wherein: every second dwang (601) inside cavity, every second dwang (601) inside slidable mounting has a drive pole (615), every drive pole (615) stretch out inside one end of second dwang (601) and have a closed block (602), all install a cylinder in every second dwang (601), the cylinder extension end in every closed block (602) and the second dwang (601) is connected.
5. The aero-engine combustor casing internal pressure test device according to claim 4, wherein: the middle position of the upper layer disc (3) is provided with a circular through hole, and when the lower surface of the upper layer disc (3) is overlapped with the upper surface of the casing (2), the sealing block (602) connected with the second rotating seat (613) is concentric with the circular through hole at the middle position of the upper layer disc (3).
6. The aero-engine combustor casing internal pressure test device according to claim 5, wherein: the novel lifting device is characterized in that a sealing cover (619) is fixedly arranged inside the casing (2), a circular through hole is formed in the lower portion of the casing (2), the sealing cover (619) and the lifting column (608) are coaxial, the sealing cover (619) is annular, the lifting column (608) is a stepped shaft, an end cover is arranged on the upper portion of the lifting column (608), the radius of the end cover on the upper portion of the lifting column (608) is larger than the radius of the inner wall of the sealing cover (619), the radius of the middle portion of the lifting column (608) is smaller than the radius of the inner wall of the sealing cover (619), and the radius of the lower portion of the lifting column (608) is equal to the radius of the circular through hole on the lower portion of the casing (2).
7. The aero-engine combustor casing internal pressure test device according to claim 6, wherein: the sealing block (602) is annular, and when the lower surface of the upper end cover of the lifting column (608) is in contact with the inside of the casing (2), the sealing block (602) connected with the telescopic rod (618) is coaxial with a circular through hole in the middle position of the upper disc (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310119721.3A CN116008090B (en) | 2023-02-16 | 2023-02-16 | Aeroengine combustion chamber casing internal pressure test device |
Applications Claiming Priority (1)
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