CN115194402A - Wheel disc part repairing method - Google Patents
Wheel disc part repairing method Download PDFInfo
- Publication number
- CN115194402A CN115194402A CN202210857200.3A CN202210857200A CN115194402A CN 115194402 A CN115194402 A CN 115194402A CN 202210857200 A CN202210857200 A CN 202210857200A CN 115194402 A CN115194402 A CN 115194402A
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- blade root
- wheel disc
- rim plate
- repairing
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 30
- 230000001580 bacterial effect Effects 0.000 claims description 24
- 230000008439 repair process Effects 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 2
- 241000233866 Fungi Species 0.000 description 13
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000007705 chemical test Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
Abstract
The invention discloses a method for repairing a wheel disc component, which comprises the following steps: step 1, cutting damaged parts of different types of wheel discs; step 2, manufacturing the repairing devices for the wheel discs of different types; and 3, assembling the blade and the wheel disc through the repairing device to complete the repairing of the wheel disc. The damaged parts of the wheel discs of different types are cut, the repairing devices of the wheel discs of different types are manufactured, and the corresponding repairing devices are used for assembling and repairing the blade-wheel disc system, so that the service life of the wheel disc part is prolonged, the condition that the whole rotor is scrapped due to the error machining size of the blade root wheel disc groove can be avoided, and the production cost of a manufacturing enterprise is reduced.
Description
Technical Field
The invention belongs to the field of rotary mechanical wheel discs, and relates to a method for repairing a wheel disc part.
Background
The wheel disc is a core part of a rotary machine, and is required to bear extremely high centrifugal load, vibration load and thermal load as well as corrosion and oxidation of an environmental medium, so that the wheel disc is easy to damage after a period of work. If the wheel disc part is directly replaced with a new wheel disc after being damaged, higher cost is needed, therefore, a better method is explored to repair the wheel disc damage, the service life of the wheel disc part is prolonged, and the method has important practical significance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for repairing a wheel disc part, so that the repaired wheel disc and blades are assembled, and the service life of the wheel disc part is prolonged.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a method of repairing a wheel disc component comprising the steps of:
and 3, assembling the blade and the wheel disc through the repairing device to complete the repairing of the wheel disc.
Preferably, when the wheel disc is a T-shaped blade root wheel disc, the damaged part of the T-shaped blade root wheel disc is completely cut off in the circumferential direction, and the circumferential surface is flat;
t type blade root rim plate prosthetic devices, including first round of rim plate and second round of rim plate, first round of rim plate and second rim plate circle are the semicircle ring, and the inner circle of first round of rim plate and second round of rim plate all is provided with circumferential T type blade root rim plate fixed slot and axial cotter hole, and the outer lane of first round of rim plate and second round of rim plate all is provided with circumferential T type blade root blade mounting groove, and the both ends of first round of rim plate and second round of rim plate are provided with connection structure respectively.
Further, when the T-shaped blade root wheel disc repairing device is assembled, firstly, the first wheel disc ring is installed on the outer ring of the T-shaped blade root wheel disc through the T-shaped blade root wheel disc fixing groove, the first wheel disc ring is fixed through a pin penetrating through a pin hole, and then the T-shaped blade root blade is installed in the outer ring of the first wheel disc ring through the T-shaped blade root blade installing groove; installing T type blade root blade in second rim plate circle outer lane through T type blade root blade mounting groove, installing second rim plate circle in T type blade root rim plate outer lane through T type blade root rim plate fixed slot again, through connection structure with first rim plate circle and second rim plate circle assembly, pass the cotter hole through the pin and be fixed in the T type blade root rim plate with second rim plate circle on, accomplish the assembly.
Preferably, when the wheel disc is a forked blade root wheel disc, the blade root groove area corresponding to the damaged part of the forked blade root wheel disc is separately cut off to form a notch, and the shape and the size of the notch are the same as those of the forked blade root wheel disc repairing device;
the forked blade root wheel disc repairing device comprises a device main body, wherein the device main body is a hexahedron, the top bottom surface and the side surfaces are rectangular, the front surface and the back surface are trapezoidal, the upper part and the lower part of the front surface and the back surface of the back surface are narrow, a forked blade root installing groove is formed in the upper half part of the device main body, and a forked blade root wheel disc fixing groove in the vertical direction is formed in the bottom surface of the device main body;
the breach bottom of forked type blade root rim plate is provided with the lug that all corresponds with forked type blade root rim plate fixed slot structure and size, and the device main part is arranged in the breach of forked type blade root rim plate, and the lug is arranged in forked type blade root rim plate fixed slot, and the blade root of forked type blade root blade is arranged in forked type blade root mounting groove.
Further, when the forked blade root wheel disc repairing device is assembled, the device main body is inserted into the notch of the forked blade root wheel disc along the radial direction, the forked blade root wheel disc fixing groove is inserted into the protruding block along the radial direction, and the blade root of the forked blade root blade is inserted into the forked blade root mounting groove along the radial direction.
Preferably, when the wheel disc is a fir-tree type blade root wheel disc, the blade root groove region corresponding to the damaged part of the fir-tree type blade root wheel disc is separately cut to form a through groove, the through groove axially penetrates through the fir-tree type blade root wheel disc, an opening is formed in the top of the through groove, and the shape and the size of the through groove are the same as those of the fir-tree type blade root wheel disc repairing device;
fir type blade root rim plate prosthetic devices is provided with fir type blade root blade mounting groove including the installation piece, installation piece first half, and installation piece bottom is provided with the rim plate mount pad, and installation piece thickness is the same with fir type blade root rim plate thickness.
Further, when the fir-tree blade root wheel disc repairing device is assembled, the fir-tree blade root blades are installed in the fir-tree blade root blade installation grooves along the axial direction of the fir-tree blade root wheel disc, and then the installation blocks are inserted into the through grooves along the axial direction of the fir-tree blade root wheel disc to complete the assembly.
Preferably, when the wheel disc is a bacterial type blade root wheel disc, the damaged part of the bacterial type blade root wheel disc is completely cut off in the circumferential direction, a flange is formed on the outer circle of the bacterial type blade root wheel disc, and the flange is arranged for a circle along the circumferential direction of the bacterial type blade root wheel disc;
the bacterial type blade root wheel disc repairing device comprises two device bodies and a connecting device, wherein the two device bodies are of semicircular ring structures, the axial thickness of the two device bodies is the same as that of the bacterial type blade root wheel disc, the outer circles of the two device bodies are provided with circumferential blade mounting seats, the inner circles of the two device bodies are provided with bacterial type blade root wheel disc fixing grooves, and the bacterial type blade root wheel disc fixing grooves are circumferential annular grooves; the two ends of the two device bodies are connected by adopting a connecting device.
Further, when fungus type blade root rim plate prosthetic devices assembles, install the blade on the blade mount pad of two device bodies, again with the fungus type blade root rim plate fixed slot lock of two device bodies in the flange of fungus type blade root rim plate excircle, rethread connecting device is connected the both ends of two device bodies.
Preferably, after the repairing device assembles the blade and the wheel disc, the dynamic balance and dynamic frequency test is carried out on the assembled blade-wheel disc system, and the wheel disc is repaired and accepted after the test is qualified.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the damaged parts of the wheel discs of different types are cut, then the repairing devices of different types are manufactured, and the corresponding repairing devices are used for assembling and repairing the blade-wheel disc system, so that the service life of the wheel disc part is prolonged, the whole rotor scrapping caused by the machining size error of the blade root wheel disc groove can be avoided, and the production cost of a manufacturing enterprise is reduced.
Drawings
FIG. 1 is a flow chart of a wheel disc component repair method of the present invention;
FIG. 2 is a schematic structural view of a repair device for a wheel disc with T-shaped blade roots according to the present invention;
FIG. 3 is an assembly schematic view of a T-shaped blade root wheel disc repair device according to the present invention;
FIG. 4 is a schematic view of a forked blade root disk repair device of the present invention;
FIG. 5 is an assembly schematic view of a forked blade root disk repair device of the present invention;
FIG. 6 is a schematic structural view of a fir tree root disk repair apparatus of the present invention;
FIG. 7 is an assembly schematic of the fir tree root disk repair apparatus of the present invention;
FIG. 8 is a schematic view of a bacterial type blade root disc prosthetic device of the present invention;
FIG. 9 is a schematic view of the assembly of the bacterial type root disc prosthetic device of the present invention.
Wherein: 1-a T-shaped blade root wheel disc; 2-a first wheel disc; 3-a second wheel coil; 4-T type blade root blade mounting groove; 5-T type blade root wheel disc fixed slot; 6-wheel rim connecting hole; 7-a rim ring connecting pin; 8-pin hole; 9-fork blade root disk; 10-a device body; 11-forked blade root mounting grooves; 12-fork blade root wheel disc fixing groove; 13-fir tree root disks; 14-a mounting block; 15-fir type blade root and blade mounting grooves; 16-a wheel disc mounting seat; 17-a connection hole; 18-a bacterial type root disc; 19-the device body; 20-a blade mount; 21-a mushroom type blade root wheel disc fixing groove; a 22-T root blade; 23-forked root blades; 24-fir tree root blades; 25-fungal root blade.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, a method for repairing a wheel disc element according to the present invention includes the steps of:
step 1: and judging the damage condition of the wheel disc part.
And (3) surveying the damage condition of the wheel disc part, checking the repaired strength according to methods such as physical and chemical tests, fracture analysis, finite element calculation and the like, and judging whether the damage condition belongs to the repairable category.
Step 2: and (5) cutting and repairing different types of wheel discs.
Different cutting methods are adopted for cutting and repairing the common T-shaped, fork-shaped, fir-shaped and mushroom-shaped blade root wheel discs 18.
And step 3: different types of prosthetic devices are manufactured.
And (3) according to the condition of the wheel disc subjected to cutting and repairing in the step (2), manufacturing a repairing device in a targeted manner for assembling the blade and the repaired wheel disc, and performing strength check on the manufactured repairing device according to finite element calculation to ensure the safety of the wheel disc part.
And 4, step 4: and (5) repairing the wheel disc component assembly.
And assembling the repaired wheel disc, the repaired blade and the repaired device.
And 5: and repairing the wheel disc part and debugging the wheel disc part.
And carrying out dynamic balance and dynamic frequency tests on the assembled blade-wheel disc system to ensure the operation safety of the repaired component.
And 6: and finishing the repair of the wheel disc part.
And finishing the repair work of the wheel disc part through part repair acceptance.
Referring to fig. 2, when the t-shaped blade root wheel disc 1 is repaired, the damaged part needs to be completely cut off in the circumferential direction, and the circumferential surface is flat.
Manufacturing a T-shaped blade root wheel disc repairing device which surrounds a T-shaped blade root wheel disc 1 for a whole circle, wherein the T-shaped blade root wheel disc repairing device comprises a first wheel disc ring 2 and a second wheel disc ring 3 as shown in figure 2;
the first wheel coil 2 and the second wheel coil 3 are both semicircular rings, and the inner diameters of the first wheel coil 2 and the second wheel coil 3 are equal to the outer diameter of the wheel disc; the outer rings of the first wheel disc ring 2 and the second wheel disc ring 3 are provided with circumferential T-shaped blade root blade installation grooves 4, the longitudinal sections of the T-shaped blade root blade installation grooves 4 are C-shaped, gaps face the outer rings of the first wheel disc ring 2 and the second wheel disc ring 3, and the sizes of the T-shaped blade root blade installation grooves 4 are consistent with those of blade root grooves of the original T-shaped blade root disc ring 1, so that the T-shaped blade root blades can be well installed on the first wheel disc ring 2 and the second wheel disc ring 3.
The inner rings of the first wheel disc ring 2 and the second wheel disc ring 3 are provided with circumferential T-shaped blade root disc fixing grooves 5, the upper side and the lower side of each T-shaped blade root disc fixing groove 5 extend towards the inner rings of the first wheel disc ring 2 and the second wheel disc ring 3, the distance between opposite surfaces of two extending parts is equal to the thickness of the T-shaped blade root disc 1, the size of each T-shaped blade root disc fixing groove 5 is processed according to the size of the actual T-shaped blade root disc 1 after cutting, and the T-shaped blade root disc fixing grooves can be well matched with the T-shaped blade root disc 1 after cutting.
The two ends of the first wheel disc 2 and the second wheel disc 3 are respectively provided with a connecting structure, the connecting structure comprises a circumferential wheel disc connecting hole 6 and a wheel disc connecting pin 7, the wheel disc connecting hole 6 and the wheel disc connecting pin 7 are respectively positioned at the two ends of the first wheel disc 2 and the second wheel disc 3, the wheel disc connecting hole 6 of the first wheel disc 2 corresponds to the wheel disc connecting pin 7 of the second wheel disc 3 in position, and the wheel disc connecting pin 7 of the first wheel disc 2 corresponds to the wheel disc connecting hole 6 of the second wheel disc 3 in position.
The number of the rim plate coupling holes 6 and the rim plate coupling pins 7 is two, the two rim plate coupling holes 7 and the two rim plate coupling holes 6 are respectively located on the upper side and the lower side of the end portions of the first rim plate 2 and the second rim plate 3, the two rim plate coupling pins 7 and the two rim plate coupling holes 6 are located in the radial middle portions of the first rim plate 2 and the second rim plate 3, and the two rim plate coupling pins 7 and the two rim plate coupling holes 6 circumferentially extend out of the end portions of the first rim plate 2 and the second rim plate 3.
The inner rings of the first wheel coil 2 and the second wheel coil 3 are provided with axial pin holes 8, and the pin holes 8 are used for assisting in fixing the first wheel coil 2 and the second wheel coil 3 to the repaired T-shaped blade root wheel disc 1.
As shown in fig. 3, during assembly, a first wheel disc ring 2 is firstly installed on the outer ring of a T-shaped blade root disc 1 through a T-shaped blade root disc fixing groove 5, the first wheel disc ring 2 is fixed by a pin penetrating through a pin hole 8, and then a T-shaped blade root blade is installed in the outer ring of the first wheel disc ring 2 through a T-shaped blade root blade installing groove 4; install T type blade root blade in second wheel rim plate 3 outer lane through T type blade root blade mounting groove 4, install second wheel rim plate 3 in T type blade root rim plate 1 outer lane through T type blade root rim plate fixed slot 5 again, through connection structure with first wheel rim plate 2 with the assembly of second wheel rim plate 3, pass the pin hole 8 through the pin and be fixed in T type blade root rim plate 1 with second wheel rim plate 3 on, accomplish T type blade root rim plate prosthetic devices's assembly.
When the forked blade root wheel disc 9 is repaired, a blade root groove area corresponding to the damaged part needs to be cut off separately, a forked blade root wheel disc repairing device capable of being inserted into the forked blade root wheel disc 9 is manufactured, and the forked blade root wheel disc repairing device comprises a device main body 10.
As shown in fig. 4, the device body 10 is a six-sided square cone, the top bottom surface and the side surfaces are rectangular, the front and back surfaces are trapezoidal, the thickness of the device body 10 is the same as that of the forked blade root disk 9, the forked blade root mounting groove 11 is formed in the upper half portion of the device body 10 and used for being fixedly connected with the root of the forked blade root blade, and the forked blade root disk fixing groove 12 in the vertical direction is formed in the bottom surface of the device body 10 and used for being fixedly mounted with the forked blade root disk 9.
Forked type blade root mounting groove 11 all inwards caves in the tow sides of device main part 10, and forked type blade root mounting groove 11 is provided with the recess in vertical direction, and the inside shape of recess is the same with forked type blade root mounting groove 11 surface, and the recess is located device main part 10 length direction's central line.
The forked blade root mounting groove 11 is stepped on the front and back surfaces of the device body 10, and the length of the top of the forked blade root mounting groove 11 is greater than the length of the bottom of the forked blade root mounting groove 11. The dimension of the forked blade root installation groove 11 is consistent with that of the forked blade root groove of the original wheel disc, so that the forked blade root and the blade can be well installed on the device body 10.
Blade fixing pin mounting grooves are formed in the forked blade root mounting grooves 11, blade fixing pins are connected in the blade fixing pin mounting grooves, and the blade fixing pin mounting grooves and the blade fixing pins are perpendicular to the front face of the device body 10.
The quantity of blade fixed pin mounting groove and blade fixed pin is two, and one is located the one corner near device main part 10 top, and another is located another angle near device main part 10 bottom, and blade fixed pin mounting groove and blade fixed pin position correspond with the pinhole position of blade root, and the blade fixed pin passes blade fixed pin mounting groove and blade root's pinhole and fixes.
The fork-shaped blade root wheel disc fixing groove 12 is internally provided with a cuboid cavity, a pin hole is formed in the cuboid cavity, and two ends of the pin hole penetrate through the front side and the back side of the device main body 10. Two fork-shaped blade root disk fixing grooves 12 are provided on the bottom surface of the device body 10.
The forked blade root wheel disc 9 needs to be cut off the blade root groove region corresponding to the damaged part when being repaired, a notch is formed, the shape and the size of the notch are the same as those of the device main body 10, the bottom of the notch is provided with a convex block corresponding to the forked blade root wheel disc fixing groove 12 in structure and size, the convex block on the forked blade root wheel disc 9 is a cuboid, a through hole is formed in the cuboid, the pin hole corresponds to the through hole in position, and the wheel disc fixing pin is adopted to penetrate the pin hole and the through hole.
When the blade and the wheel disc need to be assembled, as shown in fig. 5, the device body 10 is inserted into the gap of the forked blade root wheel disc 9 along the radial direction, the forked blade root wheel disc fixing groove 12 is inserted into the projection along the radial direction, the wheel disc fixing pin penetrates through the pin hole and the through hole to fix the device body 10 and the forked blade root wheel disc 9, the blade root of the forked blade root blade is inserted into the forked blade root mounting groove 11 along the radial direction, and the blade fixing pin penetrates through the blade fixing pin mounting groove and the blade root of the forked blade root blade to fix the forked blade root blade on the device body 10.
Insert forked type blade root blade in forked type blade root rim plate prosthetic devices, then be fixed in forked type blade root rim plate 9 after the cutting with forked type blade root rim plate prosthetic devices, can ensure forked type blade root blade like this can continue the assembly with forked type blade root rim plate 9 after the restoration and use.
The fir-tree blade root disk 13 needs to be cut off the blade root groove region corresponding to the damaged portion when repaired, a fir-tree blade root disk repairing device capable of being inserted into the fir-tree blade root disk 13 is manufactured, and the fir-tree blade root disk repairing device comprises an installation block 14.
As shown in fig. 6, the whole installation block 14 is in a shape of a Chinese character 'tu', the upper half part of the installation block 14 is provided with a fir-tree-shaped blade root and blade installation groove 15, the bottom of the installation block 14 is provided with a wheel disc installation seat 16, the thickness of the installation block 14 is the same as that of the fir-tree-shaped blade root wheel disc 13, and the installation block 14 is made of titanium alloy.
After the blade root groove region corresponding to the damaged part of the fir-tree blade root wheel disc 13 is cut off separately, a through groove is formed on the circumferential surface of the fir-tree blade root wheel disc 13, the through groove axially penetrates through the fir-tree blade root wheel disc 13, an opening is formed in the top of the through groove, the shape and the size of the through groove are the same as those of the installation block 14 and the wheel disc installation seat 16, and during assembly, the installation block 14 is inserted into the through groove of the fir-tree blade root wheel disc 13.
The length direction of the fir-tree type blade root blade mounting groove 15 is parallel to the axial direction of the fir-tree type blade root wheel disc 13, the mounting blocks 14 are penetrated through the two ends of the fir-tree type blade root blade mounting groove 15, the top of the fir-tree type blade root blade mounting groove 15 is opened, and the size of the fir-tree type blade root blade mounting groove 15 is consistent with that of the fir-tree type blade root groove of the original wheel disc, so that the fir-tree type blade root blade can be well mounted in the mounting blocks 14.
The wheel disc mounting seat 16 extends towards the bottom of the mounting block 14 and towards the two sides of the through groove fitting part of the fir-tree type blade root wheel disc 13, the bottom surface is located on the cambered surface, the wheel disc mounting seat 16 is processed according to the size of the repaired fir-tree type blade root wheel disc 13, and the wheel disc mounting seat can be well matched with the repaired fir-tree type blade root wheel disc 13.
The upper half of the mounting block 14 is provided with a connecting hole 17, two ends of the connecting hole 17 penetrate through the upper half of the mounting block 14 and the through groove joint part of the fir-tree blade root wheel disc 13, a connecting pin is arranged in the connecting hole 17, the length of the connecting pin is the same as that of the upper half of the mounting block 14, the connecting pin penetrates through the fir-tree blade root blade mounting groove 15, and the connecting pin penetrates through the fir-tree blade root blade and the connecting hole 17, so that the blade is fixed on the mounting block 14.
As shown in fig. 7, during assembly, the fir-tree root blades are mounted in the fir-tree root blade mounting grooves 15 of the mounting blocks 14 in the axial direction of the fir-tree root disk 13, the connecting pins penetrate the fir-tree root blades and the connecting holes 17, and the mounting blocks 14 are inserted into the through grooves of the fir-tree root disk 13 in the axial direction of the fir-tree root disk 13, thereby completing the assembly.
Need when the 18 repairs of fungus type blade root rim plate cut off impaired position circumference entirely, make around 18 whole rings fungus type blade root rim plate prosthetic devices of fungus type blade root rim plate, fungus type blade root rim plate prosthetic devices includes two device bodies 19 and connecting device.
As shown in fig. 8, the two device bodies 19 are both semicircular ring structures, the axial thickness of the two device bodies 19 is the same as the thickness of the mushroom-shaped blade root wheel disc 18, and the inner circle diameter of the two device bodies 19 is the same as the outer diameter of the mushroom-shaped blade root wheel disc 18.
The excircle of two device bodies 19 is provided with blade mount pad 20 of circumference, and the inner circle is provided with fungus type blade root rim plate fixed slot 21, and fungus type blade root rim plate fixed slot 21 is the ring groove of circumference.
The blade mounting seat 20 is of a multilayer structure in the radial direction, the axial size of the multilayer structure from the outer circle to the inner circle of the device body 19 is sequentially increased, the cross section is conical, each layer of structure is axially and inwardly shrunk to form an inner buckle, and the blade root of the bacterial type blade root can be buckled with the multilayer structure after being connected and is kept fixed. The blade mount pad 20 of two device bodies 19 is connected with a plurality of bacterial type blade root blades along circumference, and the blade root position of adjacent bacterial type blade root blade laminates each other, keeps stable each other.
The two ends of the two device bodies 19 are connected by a connecting device. Two ends of the two device bodies 19 are provided with axial fixing pin holes, the connecting device comprises two connecting pins and two fixing plates, the two fixing plates are located on two axial sides of the end portions of the device bodies 19, two through holes are formed in the fixing plates, and the connecting pins penetrate through the through holes and the fixing pin holes to connect the two device bodies 19.
The contact parts of the two ends of the two device bodies 19 and the fixing plates are provided with grooves, the fixing plates are positioned in the grooves, and the thickness of the fixing plates is equal to the depth of the grooves.
After fungus type blade root rim plate 18 will be damaged position circumference and cut off entirely, form on 18 excircles of fungus type blade root rim plate with fungus type blade root rim plate fixed slot 21 complex flange, the flange sets up the round along 18 circumference of fungus type blade root rim plate.
The bacterial type blade root blade is connected with the device main body 10 through the blade mounting seat 20, the bacterial type blade root wheel disc fixing groove 21 enables the two device main bodies 10 to be buckled on the bacterial type blade root wheel disc 18, and the joint of the two device bodies 19 penetrates through a through hole in the fixing plate and is connected with the fixing pin hole through connecting pins.
As shown in fig. 9, during assembly, the mushroom-type blade root blade is mounted on the blade mounting seat 20 of the two device bodies 19, the mushroom-type blade root wheel disc fixing grooves 21 of the two device bodies 19 are buckled in the flange of the outer circle of the mushroom-type blade root wheel disc 18, the two ends of the two device bodies 19 are connected through the connecting device, and the joint of the two device bodies 19 is connected through the connecting pin passing through the through hole and the fixing pin hole on the fixing plate.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided would be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the pending claims along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not a disclaimer of such subject matter, nor is it to be construed that applicant does not consider such subject matter to be part of the disclosed inventive subject matter.
Claims (10)
1. A method of repairing a wheel disc component, comprising the steps of:
step 1, cutting damaged parts of different types of wheel discs;
step 2, manufacturing the repairing devices for the wheel discs of different types;
and 3, assembling the blade and the wheel disc through the repairing device to complete the repairing of the wheel disc.
2. The wheel disc part repairing method according to claim 1, wherein when the wheel disc is a T-shaped blade root wheel disc (1), the damaged part of the T-shaped blade root wheel disc (1) is completely cut in the circumferential direction, and the circumferential surface is flat;
t type blade root rim plate prosthetic devices, including first round of rim plate (2) and second round of rim plate (3), first round of rim plate (2) and second round of rim plate (3) are the semicircle ring, the inner circle of first round of rim plate (2) and second round of rim plate (3) all is provided with circumferential T type blade root rim plate fixed slot (5) and axial cotter hole (8), the outer lane of first round of rim plate (2) and second round of rim plate (3) all is provided with circumferential T type blade root blade mounting groove (4), the both ends of first round of rim plate (2) and second round of rim plate (3) are provided with connection structure respectively.
3. The wheel disc part repairing method according to claim 2, wherein when the T-shaped blade root wheel disc repairing device is assembled, the first wheel disc ring (2) is firstly installed on the outer ring of the T-shaped blade root wheel disc (1) through the T-shaped blade root wheel disc fixing groove (5), the first wheel disc ring (2) is fixed through a pin penetrating through a pin hole (8), and then the T-shaped blade root blade is installed in the outer ring of the first wheel disc ring (2) through the T-shaped blade root blade installing groove (4); install T type blade root blade in second round rim plate (3) outer lane through T type blade root blade mounting groove (4), install second round rim plate (3) in T type blade root rim plate (1) outer lane through T type blade root rim plate fixed slot (5) again, assemble first round rim plate (2) and second round rim plate (3) through connection structure, pass pin hole (8) through the pin and be fixed in on T type blade root rim plate (1) second round rim plate (3), accomplish the assembly.
4. The wheel disc part repairing method according to claim 1, wherein when the wheel disc is a forked blade root wheel disc (9), a blade root groove area corresponding to a damaged portion of the forked blade root wheel disc (9) is cut off separately to form a notch, and the shape and size of the notch are the same as those of the forked blade root wheel disc repairing device;
the forked blade root wheel disc repairing device comprises a device main body (10), wherein the device main body (10) is hexahedron, the top bottom surface and the side surfaces are rectangular, the front and the back surfaces are trapezoidal, the upper part is wide, the lower part is narrow, a forked blade root installing groove (11) is formed in the upper half part of the device main body (10), and a forked blade root wheel disc fixing groove (12) in the vertical direction is formed in the bottom surface of the device main body (10);
the bottom of the notch of the forked blade root wheel disc (9) is provided with a convex block corresponding to the structure and the size of the forked blade root wheel disc fixing groove (12), the device main body (10) is positioned in the notch of the forked blade root wheel disc (9), the convex block is positioned in the forked blade root wheel disc fixing groove (12), and the blade root of the forked blade root blade is positioned in the forked blade root mounting groove (11).
5. The disc element repairing method according to claim 4, wherein the forked blade root disc repairing apparatus is assembled by inserting the apparatus body (10) into the notch of the forked blade root disc (9) in a radial direction, inserting the forked blade root disc fixing groove (12) into the projection in a radial direction, and inserting the blade root of the forked blade root into the forked blade root mounting groove (11) in a radial direction.
6. The wheel disc part repairing method according to claim 1, wherein when the wheel disc is a fir-tree type blade root wheel disc (13), a blade root groove region corresponding to a damaged portion of the fir-tree type blade root wheel disc (13) is cut separately to form a through groove, the through groove axially penetrates through the fir-tree type blade root wheel disc (13), an opening is formed in the top of the through groove, and the shape and the size of the through groove are the same as those of the fir-tree type blade root wheel disc repairing device;
the fir-tree type blade root wheel disc repairing device comprises an installation block (14), wherein a fir-tree type blade root blade installation groove (15) is formed in the upper half portion of the installation block (14), a wheel disc installation seat (16) is arranged at the bottom of the installation block (14), and the thickness of the installation block (14) is the same as that of the fir-tree type blade root wheel disc (13).
7. The disc part restoration method according to claim 6, wherein, when the fir-tree root disc restoration device is assembled, the fir-tree root blades are installed in the fir-tree root blade installation grooves (15) in the axial direction of the fir-tree root disc (13), and then the installation blocks (14) are inserted into the through grooves in the axial direction of the fir-tree root disc (13), completing the assembly.
8. The wheel disc part repairing method according to the claim 1, characterized in that when the wheel disc is a mushroom-type blade root wheel disc (18), the damaged part of the mushroom-type blade root wheel disc (18) is completely cut off in the circumferential direction, a flange is formed on the outer circle of the mushroom-type blade root wheel disc (18), and the flange is arranged in a circle along the circumferential direction of the mushroom-type blade root wheel disc (18);
the bacterial type blade root wheel disc repairing device comprises two device bodies (19) and a connecting device, wherein the two device bodies (19) are of semicircular ring structures, the axial thicknesses of the two device bodies (19) are the same as the thickness of a bacterial type blade root wheel disc (18), the outer circles of the two device bodies (19) are provided with circumferential blade mounting seats (20), the inner circles are provided with bacterial type blade root wheel disc fixing grooves (21), and the bacterial type blade root wheel disc fixing grooves (21) are circumferential annular grooves; the two ends of the two device bodies (19) are connected by a connecting device.
9. The disc part repairing method according to claim 8, wherein when the bacterial type blade root disc repairing device is assembled, the blades are installed on the blade installation seats (20) of the two device bodies (19), then bacterial type blade root disc fixing grooves (21) of the two device bodies (19) are buckled in a flange of an outer circle of the bacterial type blade root disc (18), and then two ends of the two device bodies (19) are connected through the connecting device.
10. The method of repairing a wheel disc component of claim 1, wherein the repairing device performs dynamic balance and dynamic frequency tests on the assembled blade-wheel disc system after assembling the blade and the wheel disc, and passes the wheel disc repair acceptance after the tests are qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210857200.3A CN115194402A (en) | 2022-07-20 | 2022-07-20 | Wheel disc part repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210857200.3A CN115194402A (en) | 2022-07-20 | 2022-07-20 | Wheel disc part repairing method |
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| CN115194402A true CN115194402A (en) | 2022-10-18 |
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| CN202210857200.3A Pending CN115194402A (en) | 2022-07-20 | 2022-07-20 | Wheel disc part repairing method |
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| CN (1) | CN115194402A (en) |
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Application publication date: 20221018 |