CN113241905A - Thermal sleeve device and method for shafting punching sheet and air blower - Google Patents

Thermal sleeve device and method for shafting punching sheet and air blower Download PDF

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Publication number
CN113241905A
CN113241905A CN202110508831.XA CN202110508831A CN113241905A CN 113241905 A CN113241905 A CN 113241905A CN 202110508831 A CN202110508831 A CN 202110508831A CN 113241905 A CN113241905 A CN 113241905A
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CN
China
Prior art keywords
punching
ring
punching sheet
magnetism isolating
positioning
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Pending
Application number
CN202110508831.XA
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Chinese (zh)
Inventor
钟仁志
袁军
徐功义
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Xinlei Compressor Co Ltd
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Xinlei Compressor Co Ltd
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Publication date
Application filed by Xinlei Compressor Co Ltd filed Critical Xinlei Compressor Co Ltd
Priority to CN202110508831.XA priority Critical patent/CN113241905A/en
Publication of CN113241905A publication Critical patent/CN113241905A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/058—Bearings magnetic; electromagnetic
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/14—Casings; Enclosures; Supports

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention relates to the field of motor shaft punching sheet installation, in particular to a shrink fit device and method for a shafting punching sheet and an air blower. The device comprises a magnetism isolating ring, a punching sheet positioning block, a punching sheet and a clearance ring; the punching sheet positioning block is provided with a positioning hole; the multiple punching sheets are mutually overlapped, attached and distributed along the axial direction, the outer surfaces of the punching sheets are matched with the inner surface of the positioning hole, and the end face of the punching sheet positioned at the innermost side is attached to the end face of the outer side of the magnetism isolating ring; the clearance ring is provided with a clearance ring positioning surface, the clearance ring positioning surface is matched with the inner surface of the positioning hole, and the inner side surface of the clearance ring is attached to the end surface of the punching sheet on the outermost side. The device simultaneously punches the superposed punching sheets after positioning the magnetism isolating ring, the punching sheets without punching holes and the clearance ring at the positioning holes, thereby ensuring the concentricity of inner holes of the punching sheets, reducing the time for processing the inner holes of the punching sheets and improving the laminating efficiency of the punching sheets; after the hot sleeve is sleeved, redundant materials of the punching sheet positioning block and the clearance ring and the residual amount of the outer end of the punching sheet are removed, and the concentricity between the outer circle end faces of the punching sheets is improved.

Description

Thermal sleeve device and method for shafting punching sheet and air blower
Technical Field
The invention relates to the field of motor shaft punching sheet installation, in particular to a shrink fit device and method for a shafting punching sheet and an air blower.
Background
A shaft system of the magnetic suspension blower uses a magnetic suspension axial thrust bearing to limit the axial direction of the shaft system, and when the magnetic suspension axial thrust bearing is used, the shaft system is connected with a thrust disc, and the thrust disc needs to be positioned between the two thrust bearings in the axial direction; therefore, the axial position of the shaft system needs to be detected, and the shaft system needs to be provided with a punching sheet; however, because the number of punching sheets is too large, the assembly and the processing of directly stacking the punching sheets on the rotor are very difficult, and the axial position and the concentricity of the lamination and the rotor are difficult to ensure, so that the detection of the axial position of the whole rotor is inaccurate.
The Chinese invention patent application (publication No. CN102208849B, published: 20130313) discloses a wind power rotor hot sleeve shaft device and a hot sleeve shaft process thereof, which comprise an iron core punching sheet, a dummy shaft and an outer bracket structure. The iron core punching sheets are stacked on the dummy shaft and fixed by the outer support structure, and the dummy shaft is withdrawn after stacking, so that the rotor shaft is hot-plugged into the rotor iron core. The method has small damage to the shaft and the shaft hole of the rotor after use, can be sleeved in place at one time by the dead weight of the shaft as long as the expansion amount is enough and even the shaft can not be pressed, greatly shortens the laminating time and the heating time, and saves the energy.
The prior art has the following defects: every towards the piece and need process out the hole earlier before overlying, when the piece quantity of stamping of overlying is more, the time that needs the processing hole is more, is unfavorable for overlying fast towards the piece. Meanwhile, the groove shape of each groove needs to be checked by using a through groove rod every time the sleeving of a group of punching sheets is finished, and the through groove rods of each groove can pass through the through groove rods so as to ensure the concentricity between the punching sheets; when the punching sheet quantity is more, need equipment, detection and adjustment to the punching sheet many times, reduced the punching sheet and folded pressure efficiency. And moreover, the inner hole of the punching sheet is used as a reference for adjustment and alignment, and the concentricity of the outer circle end face of the punching sheet is not adjusted, so that the concentricity between the outer circle end faces of the punching sheet is poor.
Disclosure of Invention
The purpose of the invention is: aiming at the problems, the magnetic isolation ring, the punching sheets which are not punched and the clearance ring are simultaneously punched after the positioning holes are positioned, so that the concentricity of inner holes of a plurality of punching sheets is ensured, the time for processing the inner holes of the punching sheets is reduced, and the lamination efficiency of the punching sheets is improved; after the hot sleeving, redundant materials of a punching sheet positioning block and a clearance ring and the residual quantity of the outer end of the punching sheet are removed simultaneously, and the concentricity between the outer circle end faces of the punching sheets is improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a heat jacket device of a shafting punching sheet comprises a magnetism isolating ring, a punching sheet positioning block, a punching sheet and a clearance ring, wherein the size of an inner hole of the magnetism isolating ring is the same as that of an inner hole of the clearance ring, and the centers of the inner holes are positioned on the same axis; the punching sheet positioning block is provided with a positioning hole, the outer surface of the magnetism isolating ring is matched with the inner surface of the positioning hole, and the inner side end face of the magnetism isolating ring is contacted with the bottom surface of the positioning hole; the multiple punching sheets are mutually overlapped, attached and distributed along the axial direction, the outer surfaces of the punching sheets are matched with the inner surface of the positioning hole, and the end face of the punching sheet positioned at the innermost side is attached to the end face of the outer side of the magnetism isolating ring; the clearance ring is detachably connected with the punching sheet positioning block, a clearance ring positioning surface is arranged on the clearance ring, the clearance ring positioning surface is matched with the inner surface of the positioning hole, and the inner side surface of the clearance ring is attached to the end surface of the punching sheet on the outermost side.
Preferably, the bottom surface of the punching sheet positioning block is provided with a bottom hole, and the diameter of the bottom hole is larger than the diameter of the inner hole of the magnetism isolating ring and smaller than the diameter of the outer end face of the magnetism isolating ring. The center of the bottom hole and the center of the inner hole of the magnetism isolating ring are positioned on the same axial line.
Preferably, the punching positioning block is provided with a fixed boss, and the clearance ring is provided with a connecting boss; the fixed lug boss is connected with the connecting lug boss, and the outer end face of the fixed lug boss is not contacted with the inner end face of the connecting lug boss. The fixed boss is connected with the connecting boss through screws or bolts. The plurality of fixing holes of the fixing boss and the connecting boss are distributed along the circumferential direction and are aligned with each other.
In addition, the invention also discloses a shafting punching sheet installation method, which adopts a shrink fit device of the shafting punching sheet and comprises the following steps:
(S1) magnetic isolation ring feeding and positioning: placing the magnetism isolating ring in the positioning hole, wherein the end face of the inner side of the magnetism isolating ring is in contact with the bottom surface of the positioning hole;
(S2) punching sheet feeding positioning: laminating and superposing a set number of punching sheets into the positioning hole, and laminating the end face of the punching sheet positioned at the innermost side with the end face of the outer side of the magnetism isolating ring;
(S3) feeding and positioning of the clearance ring: matching the positioning surface of the clearance ring with the inner surface of the positioning hole, and attaching the inner side surface of the clearance ring to the end surface of the punching sheet on the outermost side;
(S4) the clearance ring locking: connecting and locking the gap ring and the punching sheet positioning block so as to mutually press the punching sheets;
processing an inner hole of the punching sheet: simultaneously processing inner holes of the plurality of the locked punching sheets;
(S5) shrink fitting: after the whole device is heated, the magnetism isolating ring, the punching sheet and the gap ring are sleeved on a shaft system in a hot mode, and the outer side end face of the gap ring is tightly pressed and attached to the corresponding end face of the thrust disc; after the hot jacket is cooled, the magnetism isolating ring, the punching sheet and the clearance ring are shrunk and fixed on the shaft system;
(S6) removing excess material: and removing redundant materials of the punching positioning block and the clearance ring to a set size to finish the installation process of the shafting punching.
Preferably, when redundant materials of the punching sheet positioning block and the gap ring are removed, the redundant materials are turned firstly, and then the turned surface is subjected to excircle grinding.
In addition, the invention also discloses a magnetic suspension blower which comprises a magnetism isolating ring, a plurality of stacked and attached punching sheets, a gap ring, a motor shaft, a thrust disc and an axial sensor; inner holes of the thrust disc, the magnetism isolating ring, the punching sheet and the clearance ring are respectively matched with the outer surface of the same shaft section of the motor shaft; the thrust disc, the clearance ring, the plurality of superposed and attached punching sheets and the magnetism isolating ring are sequentially and linearly and adjacently distributed along the axial direction of the motor shaft, and the axial side end face of the thrust disc is attached to a corresponding shaft shoulder of the motor shaft; the magnetism isolating ring, the punching sheet and the clearance ring are arranged on the motor shaft by adopting the method; the output end of the axial sensor is connected with the position of the punching sheet.
Preferably, the blower is also provided with a speed sensor, and the output end of the speed sensor is connected with the motor shaft.
The heat sleeve device for the shafting punching sheet adopting the technical scheme has the advantages that:
the overall thickness of the laminated punching sheet can be effectively ensured only by ensuring the machining sizes of the magnetism isolating ring, the punching sheet positioning block and the gap ring, so that the axial position of the laminated punching sheet on a shaft system is ensured. Meanwhile, after the punching sheets are laminated to the positioning holes for locking, all the laminated punching sheets are simultaneously punched, the concentricity of inner holes of the punching sheets is ensured, and the condition that punching and laminating are carried out on each punching sheet at first is avoided; punching simultaneously after the punching sheet is laminated, the inner hole of the punching sheet is not required to be adjusted and detected when the punching sheet is laminated at every time, the laminating efficiency of the punching sheet is improved, and the processing and the installation are relatively more convenient. And after parts such as the punching sheets are sleeved on the shaft system in a hot mode, redundant materials of the punching sheet positioning blocks and the clearance rings and the allowance of the punching sheets are removed at the same time, so that the sizes of the outer circle end faces of the punching sheets are the same, and the concentricity between the outer circle end faces of the punching sheets is improved. And dimension measurement can be carried out before the thermal sleeve, so that the number of punching sheets can be checked and adjusted at any time, and the rejection rate of parts is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a magnetic suspension blower.
Fig. 2 is a schematic structural diagram of the present invention.
7-small impeller, 10-big impeller, 10-rear sensor.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the drawings.
Example 1
A thermal sleeve device of a shafting punching sheet comprises a magnetism isolating ring 1, a punching sheet positioning block 2, a punching sheet 3 and a clearance ring 4, wherein the size of an inner hole of the magnetism isolating ring 1 is the same as that of an inner hole of the clearance ring 4, and the centers of the inner holes are positioned on the same axis; the punching sheet positioning block 2 is provided with a positioning hole 21, the outer surface of the magnetism isolating ring 1 is matched with the inner surface of the positioning hole 21, and the end surface of the inner side of the magnetism isolating ring 1 is contacted with the bottom surface of the positioning hole 21; the multiple punching sheets 3 are mutually overlapped, attached and distributed along the axial direction, the outer surfaces of the punching sheets 3 are matched with the inner surface of the positioning hole 21, and the end surface of the punching sheet 3 positioned at the innermost side is attached to the end surface of the outer side of the magnetism isolating ring 1; the clearance ring 4 is detachably connected with the punching sheet positioning block 2, the clearance ring 4 is provided with a clearance ring positioning surface 41, the clearance ring positioning surface 41 is matched with the inner surface of the positioning hole 21, and the inner side surface of the clearance ring 4 is attached to the end surface of the punching sheet 3 on the outermost side.
When the punching sheet is sleeved in a hot mode: 1) placing the magnetism isolating ring 1 in the positioning hole 21 and enabling the end face of the inner side of the magnetism isolating ring 1 to be in contact with the bottom face of the positioning hole 21; 2) a set number of punching sheets 3 are mutually attached and stacked in the positioning hole 21, and the end face of the punching sheet 3 positioned at the innermost side is attached to the end face of the outer side of the magnetism isolating ring 1; 3) and (3) feeding and positioning of the clearance ring: matching the positioning surface 41 of the clearance ring with the inner surface of the positioning hole 21, and attaching the inner side surface of the clearance ring 4 to the end surface of the outermost punched sheet 3; 4) the gap ring 4 and the punching sheet positioning block 2 are connected and locked, so that the punching sheets 3 are mutually compressed; 5) simultaneously processing inner holes of the plurality of the locked punching sheets 3; 6) after the whole device is heated, the magnetism isolating ring 1, the punching sheet 3 and the gap ring 4 are sleeved on the shafting in a hot mode, and the end face of the outer side of the gap ring 4 is tightly pressed and attached to the corresponding end face of the thrust disc; after the hot jacket is cooled, the magnetism isolating ring 1, the punching sheet 3 and the clearance ring 4 are shrunk and fixed on the shafting; 7) and removing redundant materials of the punching piece positioning block 2 and the clearance ring 4 and the allowance of the punching piece 3 to a set size to complete the installation process of the shafting punching piece.
In the mode, the overall thickness of the laminated punching sheet can be effectively ensured only by ensuring the machining sizes of the magnetism isolating ring 1, the punching sheet positioning block 2 and the clearance ring 4, so that the axial position of the laminated punching sheet on a shaft system is ensured. Meanwhile, after the punching sheets are laminated to the positioning holes 21 and locked, all the laminated punching sheets are simultaneously punched, the concentricity of inner holes of the punching sheets is ensured, and the condition that each punching sheet needs to be punched and then laminated is also avoided; punching simultaneously after the punching sheet is laminated, the inner hole of the punching sheet is not required to be adjusted and detected when the punching sheet is laminated at every time, the laminating efficiency of the punching sheet is improved, and the processing and the installation are relatively more convenient. Moreover, after parts such as the punching sheet 3 and the like are sleeved on a shaft system in a hot mode, redundant materials of the punching sheet positioning block 2 and the gap ring 4 and the allowance of the punching sheet 3 are removed at the same time, so that the sizes of the excircle end faces of the punching sheets 3 are the same, and the concentricity between the excircle end faces of the punching sheets is improved. And dimension measurement can be carried out before the thermal sleeve, the number of the punching sheets 3 can be checked and adjusted at any time, and the rejection rate of parts is reduced.
The bottom surface of the punching sheet positioning block 2 is provided with a bottom hole 22, and the diameter of the bottom hole 22 is larger than the diameter of the inner hole of the magnetism isolating ring 1 and smaller than the diameter of the outer end surface of the magnetism isolating ring 1. The center of the bottom hole 22 and the center of the inner hole of the magnetism isolating ring 1 are positioned on the same axis.
The punching sheet positioning block 2 is provided with a fixed boss 23, and the clearance ring 4 is provided with a connecting boss 42; the fixing boss 23 is connected with the connecting boss 42, and the outer end face of the fixing boss 23 is not contacted with the inner end face of the connecting boss 42 so that the clearance ring 4 is positioned only by the positioning hole 21 and is prevented from being interfered by the outer end face of the fixing boss 23.
The fixing boss 23 and the coupling boss 42 are coupled by a screw or a bolt. The plurality of fixing holes of the fixing bosses 23 and the coupling bosses 42 are distributed in the circumferential direction and aligned with each other.
In addition, the invention also discloses a shafting punching sheet installation method, which adopts a shrink fit device of the shafting punching sheet and comprises the following steps:
(S1) magnetic isolation ring feeding and positioning: placing the magnetism isolating ring 1 in the positioning hole 21 and enabling the end face of the inner side of the magnetism isolating ring 1 to be in contact with the bottom face of the positioning hole 21;
(S2) punching sheet feeding positioning: a set number of punching sheets 3 are mutually attached and stacked in the positioning hole 21, and the end face of the punching sheet 3 positioned at the innermost side is attached to the end face of the outer side of the magnetism isolating ring 1;
(S3) feeding and positioning of the clearance ring: matching the positioning surface 41 of the clearance ring with the inner surface of the positioning hole 21, and attaching the inner side surface of the clearance ring 4 to the end surface of the outermost punched sheet 3;
(S4) the clearance ring locking: the gap ring 4 and the punching sheet positioning block 2 are connected and locked, so that the punching sheets 3 are mutually compressed;
(S5) processing an inner hole of the punching sheet: simultaneously processing inner holes of the plurality of the locked punching sheets 3;
(S6) shrink fitting: after the whole device is heated, the magnetism isolating ring 1, the punching sheet 3 and the gap ring 4 are sleeved on the shafting in a hot mode, and the end face of the outer side of the gap ring 4 is tightly pressed and attached to the corresponding end face of the thrust disc; after the hot jacket is cooled, the magnetism isolating ring 1, the punching sheet 3 and the clearance ring 4 are shrunk and fixed on the shafting;
(S7) removing excess material: and removing redundant materials of the punching piece positioning block 2 and the clearance ring 4 and the allowance of the punching piece 3 to a set size to complete the installation process of the shafting punching piece.
When the redundant materials of the punching sheet positioning block 2 and the clearance ring 4 are removed, the redundant materials are firstly turned, and then the turned surface is subjected to excircle grinding.
In addition, the invention also discloses a magnetic suspension blower which comprises a magnetism isolating ring 1, a plurality of stacked and attached punching sheets 3, a gap ring 4, a motor shaft 11, a thrust disc 12 and an axial sensor 9; inner holes of the thrust disc 12, the magnetism isolating ring 1, the punching sheet 3 and the clearance ring 4 are respectively matched with the outer surface of the same shaft section of the motor shaft 11; the thrust disc 12, the clearance ring 4, the plurality of superposed and attached punching sheets 3 and the magnetism isolating ring 1 are sequentially and linearly and adjacently distributed along the axial direction of the motor shaft 11, and the end face of the axial side of the thrust disc 12 is attached to the corresponding shaft shoulder of the motor shaft 11; the magnetism isolating ring 1, the punching sheet 3 and the clearance ring 4 are arranged on the motor shaft 11 by adopting the method; the output end of the axial sensor 9 is connected with the position of the punching sheet 3. The air blower is also provided with a speed sensor 8, and the output end of the speed sensor 8 is connected with a motor shaft 11.

Claims (10)

1. A heat jacket device of a shafting punching sheet is characterized by comprising a magnetism isolating ring (1), a punching sheet positioning block (2), a punching sheet (3) and a clearance ring (4), wherein the size of an inner hole of the magnetism isolating ring (1) is the same as that of an inner hole of the clearance ring (4), and the centers of the inner holes are positioned on the same axis; the punching sheet positioning block (2) is provided with a positioning hole (21), the outer surface of the magnetism isolating ring (1) is matched with the inner surface of the positioning hole (21), and the end surface of the inner side of the magnetism isolating ring (1) is contacted with the bottom surface of the positioning hole (21); the punching sheets (3) are mutually overlapped, attached and distributed along the axial direction, the outer surfaces of the punching sheets (3) are matched with the inner surface of the positioning hole (21), and the end surface of the punching sheet (3) positioned at the innermost side is attached to the end surface of the outer side of the magnetism isolating ring (1); clearance ring (4) can be dismantled with towards piece locating piece (2) and be connected, clearance ring (4) are provided with clearance ring locating surface (41), and clearance ring locating surface (41) and locating hole (21) internal surface cooperate to the laminating mutually of the towards piece (3) terminal surface in clearance ring (4) medial surface and the outside.
2. The heat jacket device for the axial system punching sheet as claimed in claim 1, wherein a bottom hole (22) is formed in the bottom surface of the punching sheet positioning block (2), and the diameter of the bottom hole (22) is larger than the diameter of the inner hole of the magnetism isolating ring (1) and smaller than the diameter of the outer end surface of the magnetism isolating ring (1).
3. The heat jacket device for the shafting punching sheet as claimed in claim 2, wherein the center of the bottom hole (22) and the center of the inner hole of the magnetism isolating ring (1) are located on the same axis.
4. The heat sleeve device of the axial system punching piece as recited in claim 1, wherein the punching piece positioning block (2) is provided with a fixing boss (23), and the clearance ring (4) is provided with a connecting boss (42); the fixed boss (23) is connected with the connecting boss (42), and the outer end face of the fixed boss (23) is not contacted with the inner end face of the connecting boss (42).
5. The heat jacket device of the shafting punching sheet as claimed in claim 4, wherein the fixing boss (23) and the connecting boss (42) are connected by a screw or a bolt.
6. The heat jacket device for shafting stamped steel as claimed in claim 4, wherein the plurality of fixing holes of the fixing boss (23) and the connecting boss (42) are distributed along the circumferential direction and aligned with each other.
7. A shafting punching sheet installation method is characterized in that the method adopts the heat jacket device of the shafting punching sheet as claimed in claim 1, and the method comprises the following steps:
(S1) magnetic isolation ring feeding and positioning: placing the magnetism isolating ring (1) in the positioning hole (21) and enabling the end face of the inner side of the magnetism isolating ring (1) to be in contact with the bottom face of the positioning hole (21);
(S2) punching sheet feeding positioning: a set number of punching sheets (3) are mutually attached and stacked in the positioning hole (21), and the end face of the punching sheet (3) positioned at the innermost side is attached to the end face of the outer side of the magnetism isolating ring (1);
(S3) feeding and positioning of the clearance ring: matching the positioning surface (41) of the clearance ring with the inner surface of the positioning hole (21), and attaching the inner side surface of the clearance ring (4) to the end surface of the punching sheet (3) on the outermost side;
(S4) the clearance ring locking: the gap ring (4) and the punching sheet positioning block (2) are connected and locked, and then the punching sheets (3) are mutually pressed;
(S5) processing an inner hole of the punching sheet: simultaneously processing inner holes of the plurality of the locked punching sheets (3);
(S6) shrink fitting: after the whole device is heated, the magnetism isolating ring (1), the punching sheet (3) and the clearance ring (4) are sleeved on the shaft system in a hot mode, and the end face of the outer side of the clearance ring (4) is tightly pressed and attached to the corresponding end face of the thrust disc; after the hot jacket is cooled, the magnetism isolating ring (1), the punching sheet (3) and the clearance ring (4) are shrunk and fixed on the shafting;
(S7) removing excess material: and removing redundant materials of the punching piece positioning block (2) and the clearance ring (4) and the allowance of the punching piece (3) to a set size to finish the installation process of the shafting punching piece.
8. The method for mounting the shafting stamped steel as claimed in claim 7, wherein when the redundant materials of the stamped steel positioning block (2) and the clearance ring (4) are removed, the redundant materials are turned firstly, and then the turned surface is subjected to outer circle grinding.
9. A magnetic suspension blower is characterized by comprising a magnetism isolating ring (1), a plurality of stacked and attached punching sheets (3), a gap ring (4), a motor shaft (11), a thrust disc (12) and an axial sensor (9); inner holes of the thrust disc (12), the magnetism isolating ring (1), the punching sheet (3) and the clearance ring (4) are respectively matched with the outer surface of the same shaft section of the motor shaft (11); the thrust disc (12), the clearance ring (4), the plurality of stacked and attached punching sheets (3) and the magnetism isolating ring (1) are sequentially and linearly and adjacently distributed along the axial direction of the motor shaft (11), and the end face of the axial side of the thrust disc (12) is attached to the corresponding shaft shoulder of the motor shaft (11); the magnetism isolating ring (1), the punching sheet (3) and the clearance ring (4) are arranged on the motor shaft (11) by adopting the method of claim 7; the output end of the axial sensor (9) is connected with the position of the punching sheet (3).
10. A magnetic levitation blower according to claim 9, characterised in that the blower is further provided with a speed sensor (8), the output of the speed sensor (8) being connected to the motor shaft (11).
CN202110508831.XA 2021-05-11 2021-05-11 Thermal sleeve device and method for shafting punching sheet and air blower Pending CN113241905A (en)

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Application Number Priority Date Filing Date Title
CN202110508831.XA CN113241905A (en) 2021-05-11 2021-05-11 Thermal sleeve device and method for shafting punching sheet and air blower

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Application Number Priority Date Filing Date Title
CN202110508831.XA CN113241905A (en) 2021-05-11 2021-05-11 Thermal sleeve device and method for shafting punching sheet and air blower

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CN113241905A true CN113241905A (en) 2021-08-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023015736A1 (en) * 2021-08-11 2023-02-16 鑫磊压缩机股份有限公司 Positioning tooling of magnetic suspension motor shaft, motor rotor and assembly method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023015736A1 (en) * 2021-08-11 2023-02-16 鑫磊压缩机股份有限公司 Positioning tooling of magnetic suspension motor shaft, motor rotor and assembly method

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