CN114658686B - Impeller shaft disc of small ventilator and processing method thereof - Google Patents
Impeller shaft disc of small ventilator and processing method thereof Download PDFInfo
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- CN114658686B CN114658686B CN202210480248.7A CN202210480248A CN114658686B CN 114658686 B CN114658686 B CN 114658686B CN 202210480248 A CN202210480248 A CN 202210480248A CN 114658686 B CN114658686 B CN 114658686B
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- 238000003672 processing method Methods 0.000 title claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 124
- 238000007872 degassing Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 48
- 238000010586 diagram Methods 0.000 claims description 18
- 238000003754 machining Methods 0.000 claims description 15
- 238000009412 basement excavation Methods 0.000 claims description 6
- 238000004040 coloring Methods 0.000 claims description 6
- 230000002950 deficient Effects 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 11
- 238000010276 construction Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
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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
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to an impeller shaft disc of a small ventilator and a processing method thereof, wherein the impeller shaft disc comprises an axial part, a wheel disc and a conical disc, the middle part of the wheel disc is welded with the axial part, one end of the axial part is provided with a boss, the joint of the boss and the axial part is provided with a first notch, the other end of the axial part is provided with a second notch, the interior of the axial part is provided with a shaft hole and a degassing groove, the degassing groove is an annular groove, the two ends of the degassing groove are respectively communicated with the shaft hole, the shaft hole penetrates through the axial part, the second notch is welded with the wheel disc, one end of the conical disc is welded with the wheel disc, and the other end of the conical disc is welded with the axial part. According to the invention, casting is replaced by welding, round steel is processed by the welding shaft disc, a boss is reserved at the radial front end, the shaft disc with a structure changed can be matched with a hydraulic jack by using a three-jaw puller, the fan shaft disc is slowly and uniformly heated by using a baking gun, then the impeller of the shaft disc is ejected out from the shaft center, the disassembly is more convenient than that of the casting shaft disc, the cone disc of the welding shaft disc ensures the integral strength of the welding shaft disc, no external vortex is generated during rotation, and the performance of the fan is ensured.
Description
Technical Field
The invention relates to the technical field of fan assembly components, in particular to a small ventilator impeller shaft disc and a processing method thereof.
Background
The fan has wide application in the industrial field, promotes the rapid development of the fan to generate a plurality of fan manufacturers, and under the large environment of double carbon economy, the environmental pollution problem is emphasized by the industrial development, and the pressure of local environmental protection is less and less compared with the approval of high-energy-consumption high-pollution foundry.
At present, in the prior art, after a fan shaft disc is cast and molded through a die, an inner circle of a turning machine and a key groove are required to be machined to ensure matching precision. The casting shaft disc is not cast by part of factories, the shaft disc cannot be cast by the factories, the shaft disc with special size needs to be opened, the early development is difficult, the casting precision is difficult to guarantee, the construction period is long, and the like, the special fan shaft disc and the stainless steel fan shaft disc are difficult to form a large batch, and most factories select the external cooperation, so that the cost is increased, the production period is increased, and the construction period is unstable.
Disclosure of Invention
In order to solve the technical problems of difficult development, long period, high cost and the like in the earlier stage, the invention provides a small ventilator impeller shaft disc and a processing method thereof.
In a first aspect, the present invention provides a impeller shaft disc of a small ventilator, which adopts the following technical scheme:
the impeller shaft disc of the small ventilator comprises an axial piece, a wheel disc and a conical disc, wherein the middle part of the wheel disc is welded with the axial piece;
the utility model discloses a novel energy-saving device for the electric motor is characterized in that a boss is arranged at one end of an axial member, a first gap is arranged at the joint of the boss and the axial member, a second gap is arranged at the other end of the axial member, a shaft hole and a degassing groove are arranged inside the axial member, the degassing groove is an annular hole groove, two ends of the degassing groove are respectively communicated with the shaft hole, the shaft hole penetrates through the axial member, the second gap is welded with a wheel disc, one end of a conical disc is welded with the wheel disc, the other end of the conical disc is welded with the axial member, the axial disc is used for reinforcing the connection of the axial member and the wheel disc, and rivet holes are distributed around the periphery of the conical disc.
Through adopting above-mentioned technical scheme, the welding axle dish processing round steel, radial front end remains has the boss, axle dish after the change structure, available three-jaw draws the horse to cooperate hydraulic jack, slowly carries out even heating to fan axle dish with roast rifle, then it is ejecting with axle dish impeller from the axle center, it is more convenient than cast axle dish dismantles before, the awl dish of welding axle dish has guaranteed welding axle dish integrated strength, rotatory not to produce outside vortex, has guaranteed fan performance
Preferably, the axes of the shaft hole and the air escape groove are the same as the axis of the wheel disc.
Preferably, the axis of the conical disc coincides with the axis of the wheel disc.
Preferably, the axial member is a round steel, and the diameter of the round steel is larger than the length of the degassing groove.
Preferably, the conical disc comprises a round opening at the upper end and a conical disc wall with a small upper part and a large lower part, wherein the conical disc wall is connected with the round opening, the upper end of the conical disc wall is welded with the axial piece, and the lower end of the conical disc wall is welded with the wheel disc.
In a second aspect, the invention provides a processing method of an impeller shaft disc of a small ventilator, which adopts the following technical scheme:
a processing method of an impeller shaft disc of a small ventilator comprises the following steps:
1) Forging and blanking an axial part, a wheel disc and a conical disc:
determining machining allowance, and providing a rough turning process diagram and a finish turning process diagram;
determining the rebound rate and the extension rate of the material;
the blanking size is finally determined by combining the rough turning process diagram and the operability of the equipment;
2) Axial member, rim plate and awl dish turning:
performing rough machining on the axial part according to the rough turning process diagram, and turning out a shaft hole part and a boss at the front end;
rough machining is carried out on the wheel disc according to the rough turning process diagram, and rivet holes are turned;
3) Welding the axial member and the wheel disc:
grinding a chamfer from the axial member;
processing the wheel disc to obtain a welding groove with the axial piece;
assembling the axial part and the wheel disc, butt-welding and fixing the groove and the chamfer;
coloring and checking the quality of a welding line after welding, and if the welding line is defective, carrying out excavation repair welding;
4) Welding the whole obtained in the step 3) with the conical disc:
welding the upper end of the conical disc with the axial piece during welding, and welding the lower end of the conical disc with the wheel disc;
coloring and checking the quality of a welding line after welding, and if the welding line is defective, carrying out excavation repair welding;
5) Checking welding quality of the whole obtained in the step 4) according to technical requirements, performing preliminary polishing on residues, and performing failure treatment;
6) And 3) carrying out finish turning on the whole obtained in the step 5), and processing the whole obtained in the step 5) to a corresponding size according to the finish turning process diagram.
By adopting the technical scheme, the welded shaft disc saves cost and has stable construction period, a new process is formed, the welding replaces casting, factories without casting capability can also produce, and the pollution of the welding to the environment is smaller compared with the casting.
Preferably, in the step 3), the axial member and the wheel disc are welded in a double-sided welding mode, and the double-sided welding is good in molding and high in welding seam quality.
Preferably, in the step 3), a multi-layer welding mode is adopted when the groove and the chamfer are butt welded, and the multi-layer welding comprises the following steps:
1) The welding rod with smaller diameter is used for backing the welding bead of the first layer, and the strip conveying method adopts a straight line shape;
2) Removing the first layer of slag, then welding by using a welding rod with the diameter larger than that of the welding rod in the step 1), adopting a linear crescent or zigzag strip conveying method with smaller amplitude, and adopting short arc welding;
3) After welding, each layer is cleaned by slag of the upper layer, and then welding is carried out by using a welding rod with the diameter larger than that of the welding rod of the upper layer and a larger welding current, and a crescent or zigzag strip conveying method is adopted.
The crescent strip conveying method is adopted, so that the cooling speed of a molten pool is slow, the precipitation of gas in a welding line is facilitated, and the quality of the welding line is improved.
Preferably, the method of performing the failure treatment in the step 5) is a heat treatment method or a hammering method, the welding residual stress may cause welding defects such as deformation and cracking, the failure treatment may enhance the stability of the welding portion, and the welding portion may not be unnecessarily deformed or cracked.
In summary, the invention has the following beneficial technical effects:
the welded shaft disc saves cost and has stable construction period, a new process is formed, the welding replaces casting, factories without casting capability can also produce the shaft disc, and the pollution of the welding to the environment is smaller compared with the casting; and the welding shaft disc is processed by round steel, the boss is reserved at the radial front end, the shaft disc with the structure changed is matched with a hydraulic jack by using a three-jaw puller, the fan shaft disc is slowly and uniformly heated by using a baking gun, then the shaft disc impeller is ejected out of the axis, the disassembly of the shaft disc impeller is more convenient than that of the shaft disc cast before, the convenience and the rapidness of the assembly and the disassembly of the impeller shaft disc are improved, the labor and the labor hour cost are favorably saved, the whole strength of the welding shaft disc is ensured by the cone disc of the welding shaft disc, the outer vortex is not generated during rotation, and the performance of the fan is ensured.
Drawings
Fig. 1 is a schematic axial sectional view of an impeller shaft disk of a small ventilator according to the present invention.
Fig. 2 is a schematic top view of a small ventilator impeller shaft of the present invention.
Fig. 3 is a schematic view of the structure of the present invention after installation.
Reference numerals illustrate: 1. an axial member; 11. a boss; 12. a first notch; 13. a shaft hole; 14. a degassing tank;
2. a wheel disc; 3. a conical disc; 4. rivet hole; 5. a main shaft; 6. a fan housing; 7. and a bearing box.
Detailed Description
The invention is described in further detail below with reference to fig. 1-3.
The embodiment of the invention discloses an impeller shaft disc of a small ventilator. Referring to fig. 1-2, an impeller shaft disc of a small ventilator comprises an axial member 1, a wheel disc 2 and a conical disc 3, wherein the middle part of the wheel disc 2 is welded with the axial member 1;
one end of the axial member 1 is provided with a boss 11, the joint of the boss 11 and the axial member 1 is provided with a first notch 12, the other end of the axial member 1 is provided with a second notch, the inside of the axial member 1 is provided with a shaft hole 13 and a degassing groove 14, the degassing groove 14 is an annular hole groove, two ends of the degassing groove 14 are respectively communicated with the shaft hole 13, the shaft hole 13 penetrates through the axial member 1, the second notch is welded with the wheel disc 2, one end of the conical disc 3 is welded with the wheel disc 2, the other end of the conical disc 3 is welded with the axial member 1, the conical disc 3 is used for reinforcing the connection of the axial member 1 and the wheel disc 2, the wheel disc 2 is provided with rivet holes 4 around the periphery of the conical disc 3, and in the illustrated embodiment, 12 rivet holes 4 are uniformly distributed in the circumferential direction of the wheel disc 2 so as to ensure the assembly strength and the stress distribution of the wheel disc and the impeller are uniform.
The round steel is processed by the welding shaft disc, the boss 11 is reserved at the radial front end, the shaft disc with the structure changed can be matched with a hydraulic jack by a three-jaw puller, the fan shaft disc is slowly and uniformly heated by a baking gun, and then the shaft disc impeller is ejected out from the axis, so that the shaft disc is more convenient to detach than the shaft disc cast before.
Specifically, the axes of the shaft hole 13 and the air escape groove 14 are the same as the axis of the wheel disc 2.
Specifically, the axis of the conical disc 3 coincides with the axis of the wheel disc 2.
Specifically, the axial member 1 is made of round steel, and the diameter of the round steel is larger than the length of the degassing tank 14.
Specifically, the conical disk 3 comprises a round opening at the upper end and a conical disk 3 wall with a small upper part and a large lower part, wherein the conical disk 3 wall is connected with the round opening, the upper end of the conical disk 3 wall is welded with the axial member 1, the lower end of the conical disk 3 wall is welded with the wheel disk 2, the conical disk 3 of the welding shaft disk ensures the integral strength of the welding shaft disk, and the rotating shaft disk does not generate external vortex, so that the performance of a fan is ensured.
Referring to fig. 3, when assembling, the shaft disc is placed in the fan casing 6, the wheel disc 2 and the impeller are fixedly connected through the rivet hole 4, then one end of the main shaft 5 is arranged in the shaft hole 13, the other end of the main shaft is connected with the bearing box 7, the main shaft 5 and the axial member 1 need interference fit, the fan shaft disc is slowly heated by the baking gun when being installed or dismounted, the hole diameter of the shaft hole 13 is increased due to the principle of thermal expansion and cold contraction, then the main shaft 5 of the shaft disc impeller is inserted or ejected from the shaft hole 13, compared with the prior casting shaft disc, the shaft disc is dismounted more conveniently, simultaneously, the shaft hole 13 is relatively longer in size, friction is easily generated due to the tight contact between the shaft hole 13 and the main shaft 5 when being installed or dismounted, the friction force is excessively large, the installation or dismounting difficulty is easily caused, the air reserved in the air dissipation groove 14 is used for accelerating the installation or dismounting speed when being installed or dismounted, the operation is convenient, the working efficiency is improved, and the raw materials are saved more.
The embodiment of the invention also discloses a processing method of the impeller shaft disc of the small ventilator.
A processing method of an impeller shaft disc of a small ventilator comprises the following steps:
1) Forging and blanking an axial part 1, a wheel disc 2 and a conical disc 3:
determining machining allowance, and providing a rough turning process diagram and a finish turning process diagram;
determining the rebound rate and the extension rate of the material;
the blanking size is finally determined by combining the rough turning process diagram and the operability of the equipment;
2) Turning of an axial member 1, a wheel disc 2 and a conical disc 3:
roughly machining the axial part 1 according to a rough turning process diagram, and turning a shaft hole 13 part and a front-section boss 11;
rough machining is carried out on the wheel disc 2 according to the rough turning process diagram, and rivet holes 4 are turned;
3) Welding the axial member 1 with the wheel disc 2:
grinding a chamfer angle on the axial part 1;
processing the wheel disc 2 to obtain a welding groove with the axial piece 1;
assembling the axial part 1 and the wheel disc 2, butt-welding and fixing the groove and the chamfer;
coloring and checking the quality of a welding line after welding, and if the welding line is defective, carrying out excavation repair welding;
4) Welding the whole obtained in the step (3) with the conical disc 3:
during welding, the upper end of the conical disc 3 is welded with the axial piece 1, and the lower end of the conical disc 3 is welded with the wheel disc 2;
coloring and checking the quality of a welding line after welding, and if the welding line is defective, carrying out excavation repair welding;
5) Checking welding quality of the whole obtained in the step 4) according to technical requirements, performing preliminary polishing on residues, and performing failure treatment;
6) And 3) carrying out finish turning on the whole obtained in the step 5), and processing the whole obtained in the step 5) to a corresponding size according to a finish turning process diagram.
Specifically, in step 3), the axial member 1 and the wheel disc 2 are welded in a double-sided manner, the bottom of the joint between the wheel disc 2 and the axial member 1 is welded, and then
Specifically, in the step 3), a multi-layer welding mode is adopted when the groove and the chamfer are in butt welding, and the multi-layer welding comprises the following steps:
1) The welding rod with smaller diameter is used for backing the welding bead of the first layer, and the strip conveying method adopts a straight line shape;
2) Removing the first layer of slag, then welding by using a welding rod with the diameter larger than that of the welding rod in the step 1), adopting a linear crescent or zigzag strip conveying method with smaller amplitude, and adopting short arc welding;
3) After welding, each layer is cleaned by slag of the upper layer, and then welding is carried out by using a welding rod with the diameter larger than that of the welding rod of the upper layer and a larger welding current, and a crescent or zigzag strip conveying method is adopted.
During welding, the swing amplitude of the welding groove should be gradually widened along with the increase of the welding layer number, and stay slightly at two sides of the groove, so that the welding directions between the layers are opposite for ensuring the quality and preventing deformation, the welding joints should be staggered mutually, and a crescent strip conveying method is adopted to ensure that the cooling speed of a molten pool is slow, thereby being beneficial to the precipitation of gas in the welding joints and improving the quality of the welding joints.
Specifically, the method for performing the failure treatment in step 5) is a heat treatment method or a hammering method, in the illustrated embodiment, a hammering method is adopted, the weld metal is blocked when the weld is contracted and generates stress when the weld is cooled, at this time, the weld area is tapped by a hammer while the weld and the build-up layer are still in a red hot state, the first layer and the last layer of the weld are not hammered, each layer of the weld is hammered, the weld metal generates transverse plastic expansion under rapid and uniform hammering, so that the contraction of the weld is compensated to a certain extent, the elastic strain of the tensile residual stress of the part is relaxed, and the welding residual stress can be partially eliminated.
The above embodiments are not intended to limit the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (7)
1. A processing method of an impeller shaft disc of a small ventilator is characterized by comprising the following steps of: the method comprises the following steps:
1) forging and blanking an axial part (1), a wheel disc (2) and a conical disc (3):
determining machining allowance, and providing a rough turning process diagram and a finish turning process diagram;
determining the rebound rate and the extension rate of the material;
the blanking size is finally determined by combining the rough turning process diagram and the operability of the equipment;
2) Turning an axial part (1), a wheel disc (2) and a conical disc (3):
carrying out rough machining on the axial piece (1) according to the rough turning process diagram, and turning out a shaft hole (13) part and a boss (11) at the front end;
rough machining is carried out on the wheel disc (2) according to the rough turning process diagram, and rivet holes (4) are turned;
3) Welding the axial piece (1) and the wheel disc (2):
grinding a chamfer of the axial member (1);
processing the wheel disc (2) to obtain a welding groove with the axial piece (1);
assembling the axial piece (1) and the wheel disc (2), butt-welding and fixing the groove and the chamfer;
coloring and checking the quality of a welding line after welding, and if the welding line is defective, carrying out excavation repair welding;
4) Welding the whole obtained in the step 3) with the conical disc (3):
during welding, the upper end of the conical disc (3) is welded with the axial piece (1), and the lower end of the conical disc (3) is welded with the wheel disc (2);
coloring and checking the quality of a welding line after welding, and if the welding line is defective, carrying out excavation repair welding;
5) Checking welding quality of the whole obtained in the step 4) according to technical requirements, performing preliminary polishing on residues, and performing failure treatment;
6) Finish turning is carried out on the whole obtained in the step 5), and the whole obtained in the step 5) is processed to the corresponding size according to the finish turning process diagram;
in the step 3), a multi-layer welding mode is adopted when the groove and the chamfer are in butt welding, and the multi-layer welding comprises the following steps:
1) The welding rod with smaller diameter is used for backing the welding bead of the first layer, and the strip conveying method adopts a straight line shape;
2) Removing the first layer of slag, then welding by using a welding rod with the diameter larger than that of the welding rod in the step 1), adopting a linear crescent or zigzag strip conveying method with smaller amplitude, and adopting short arc welding;
3) After welding, each layer is cleaned by slag of the upper layer, and then welding is carried out by using a welding rod with the diameter larger than that of the welding rod of the upper layer and a larger welding current, and a crescent or zigzag strip conveying method is adopted;
the impeller shaft disc of the small ventilator comprises an axial piece (1), a wheel disc (2) and a conical disc (3), and the middle part of the wheel disc (2) is welded with the axial piece (1); the utility model discloses a novel energy-saving electric motor is characterized in that one end of an axial member (1) is provided with a boss (11), boss (11) with axial member (1) junction is equipped with first breach (12), the other end of axial member (1) is equipped with the second breach, axial member (1) inside is equipped with shaft hole (13) and air-vent groove (14), air-vent groove (14) are annular hole groove, just the both ends of air-vent groove (14) communicate respectively shaft hole (13), shaft hole (13) run through axial member (1), the second breach with rim plate (2) welding, the one end of awl dish (3) with rim plate (2) welding, the other end of awl dish (3) with axial member (1) welding, awl dish (3) are used for the reinforcement axial member (1) with rim plate (2) are connected, rim plate (2) encircle the peripheral distribution of awl dish (3) is equipped with rivet hole (4).
2. A method of machining a impeller shaft disk of a small ventilator according to claim 1, characterized by: the axes of the shaft hole (13) and the air-relief groove (14) are the same as the axis of the wheel disc (2).
3. A method of machining a impeller shaft disk of a small ventilator according to claim 1, characterized by: the axis of the conical disc (3) coincides with the axis of the wheel disc (2).
4. A method of machining a impeller shaft disk of a small ventilator according to claim 1, characterized by: the axial member (1) is made of round steel, and the diameter of the round steel is larger than the length of the degassing groove (14).
5. A method of machining a impeller shaft disk of a small ventilator according to claim 1, characterized by: the conical disc (3) comprises a round opening at the upper end and a conical disc wall with a small upper part and a large lower part, wherein the conical disc wall is connected with the round opening, the upper end of the conical disc wall is welded with the axial piece (1), and the lower end of the conical disc wall is welded with the wheel disc (2).
6. A method of machining a impeller shaft disk of a small ventilator according to claim 1, characterized by: in the step 3), the mode of welding the axial piece (1) and the wheel disc (2) is double-sided welding.
7. A method of machining a impeller shaft disk of a small ventilator according to claim 1, characterized by: the method for performing the failure treatment in the step 5) is a heat treatment method or a hammering method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480248.7A CN114658686B (en) | 2022-05-05 | 2022-05-05 | Impeller shaft disc of small ventilator and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210480248.7A CN114658686B (en) | 2022-05-05 | 2022-05-05 | Impeller shaft disc of small ventilator and processing method thereof |
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| CN114658686A CN114658686A (en) | 2022-06-24 |
| CN114658686B true CN114658686B (en) | 2024-02-20 |
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| CN111360366A (en) * | 2020-03-24 | 2020-07-03 | 江苏省沙钢钢铁研究院有限公司 | Welding method of full penetration overhead plate |
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