CN111313631A - Permanent magnet motor rotor shell-entering one-time assembling tool and one-time assembling method - Google Patents

Permanent magnet motor rotor shell-entering one-time assembling tool and one-time assembling method Download PDF

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Publication number
CN111313631A
CN111313631A CN202010232385.XA CN202010232385A CN111313631A CN 111313631 A CN111313631 A CN 111313631A CN 202010232385 A CN202010232385 A CN 202010232385A CN 111313631 A CN111313631 A CN 111313631A
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CN
China
Prior art keywords
end cover
motor
rotor
guide rod
shell
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Pending
Application number
CN202010232385.XA
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Chinese (zh)
Inventor
张宏飞
伍宇红
任伟志
康宏伟
张旭
田惠兰
焦青英
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CSIC Electrical Machinery Science and Technology Co Ltd
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CSIC Electrical Machinery Science and Technology Co Ltd
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Priority to CN202010232385.XA priority Critical patent/CN111313631A/en
Publication of CN111313631A publication Critical patent/CN111313631A/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
    • H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
    • 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)
  • Manufacture Of Motors, Generators (AREA)

Abstract

The invention discloses a disposable assembling tool and a disposable assembling method for a rotor of a permanent magnet motor, which solve the problems of difficult operation and low assembling efficiency of the rotor entering the shell. The method is characterized in that a vertical shell entering mode is set for a rotor to enter a shell, a lower end guide rod is arranged at an AS end of the rotor when the rotor enters the shell, a BS end cover is assembled at a BS end of the rotor firstly, an upper end guide rod is arranged on the BS end cover, and the rotor magnetic steel is kept at an equal distance from the inner side wall of a central hole of a stator core in the shell entering process through mechanical limiting of the upper and lower guide rods in the shell entering process; the assembly of motor is once only accomplished to this frock, has improved the assembly efficiency of motor.

Description

Permanent magnet motor rotor shell-entering one-time assembling tool and one-time assembling method
Technical Field
The invention relates to a shell entering tool of a permanent magnet motor rotor, in particular to a shell entering and one-time assembling tool and one-time assembling method of the permanent magnet motor rotor.
Background
The permanent magnet motor has the advantages of high efficiency, high power density and convenient speed regulation, the assembly of the permanent magnet motor is respectively completed by assembling the base and the stator, and the rotor and the magnetic steel on the rotor are assembled in a way that the rotor enters the base, and the rotor enters the shell, because the rotor magnetic steel has magnetism in the shell entering process, the rotor magnetic steel can generate an adsorption effect with the base and the stator in the shell entering process, the shell entering direction of the rotor cannot be ensured, the rotor can generate adsorption collision with the stator, the assembly process is difficult to operate, and the phenomena of lead insulation damage and shell collision damage are generated; in order to overcome the defect of rotor in-shell adsorption, the prior art divides the rotor in-shell and assembly into two procedures, and has the defects of low motor assembly efficiency and low assembly quality.
Disclosure of Invention
The invention provides a one-time assembling tool and a one-time assembling method for a rotor of a permanent magnet motor, which solve the technical problems of difficult operation and low assembling efficiency of the rotor entering the shell.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: the method is characterized in that a vertical shell entering mode is set for a rotor to enter a shell, a lower end guide rod is arranged at an AS end of the rotor when the rotor enters the shell, a BS end cover is assembled at a BS end of the rotor firstly, an upper end guide rod is arranged on the BS end cover, and the rotor magnetic steel is kept at an equal distance from the inner side wall of a central hole of a stator core in the shell entering process through mechanical limiting of the upper and lower guide rods in the shell entering process; the assembly of motor is once only accomplished to this frock, has improved the assembly efficiency of motor.
A permanent magnet motor rotor in-shell and one-time assembly tool comprises a crown block, a motor stator vertical placing bottom frame, a motor stator, a motor rotor and a motor base, wherein a base connection hole for connecting a base end cover BS is arranged on the base BS end of the motor base, the motor stator is assembled in the motor base, an AS end cover is assembled on the AS end of the motor base, the motor base is vertically placed on a base top plate on the motor stator vertical placing bottom frame through the AS end cover, a base middle plate is arranged on the motor stator vertical placing bottom frame right below the AS end cover, a guide sleeve for leading a rotor in-shell guide rod to pass through is arranged in the center of the base middle plate, the BS end cover is assembled on the motor rotor BS end, an end cover connection hole for connecting the BS end cover is arranged on the BS end cover, and a hanging ring is arranged on the shaft end of the motor rotor extending out of the BS end cover, the AS end cover bearing is assembled on the AS end of the motor rotor, the AS end shaft end of the motor rotor is connected with the shell guide rod, the crown block vertically suspends the motor rotor right above the motor stator through the hanging ring, the end cover guide rod is inserted into the end cover connecting hole for connecting the BS end cover on the BS end cover, the bottom end of the shell guide rod is inserted into the guide sleeve penetrating the rotor guide rod, the bottom end of the end cover guide rod is inserted into the base connecting hole for connecting the BS end cover on the motor base, and an assembly annular gap is formed between the center hole of the motor stator and the rotor magnetic steel on the motor rotor.
An AS end cover bearing entering shell guide sleeve is arranged on the AS end of the motor rotor below the AS end cover bearing, and a guide sleeve conical surface is arranged at the lower end of the AS end cover bearing entering shell guide sleeve; a connecting screw mounting hole is formed in the case entering guide rod, an AS end tip screw hole is formed in the lower end face of the AS end of the motor rotor, and the upper end of the case entering guide rod and the AS end of the motor rotor are connected together through the connecting screw mounting hole by a connecting screw; the AS end cover is fixed on the top plate of the underframe through a fixing bolt.
A one-time assembling method for a permanent magnet motor rotor in a shell comprises the following steps:
assembling a BS end cover on a BS end of a motor rotor, assembling a lifting ring on a shaft end of the motor rotor extending out of the BS end cover, assembling an AS end cover bearing on an AS end of the motor rotor, arranging an AS end cover bearing entering shell guide sleeve on the AS end of the motor rotor below the AS end cover bearing, arranging a guide sleeve conical surface at the lower end of the AS end cover bearing entering shell guide sleeve, and inserting an end cover guide rod into an end cover connecting hole for connecting the BS end cover on the BS end cover;
secondly, erecting a vertical motor stator placing underframe, arranging an underframe middle plate on the vertical motor stator placing underframe, and arranging a guide sleeve penetrating through a rotor in-shell guide rod in the center of the underframe middle plate; assembling a motor stator into a motor base, assembling an AS end cover on an AS end of the motor base, vertically placing the motor base on a top plate of an underframe on a vertically placed underframe of the motor stator through the AS end cover, and fixing the motor base through a fixing bolt;
thirdly, the crown block vertically suspends the motor rotor right above the motor stator through a hanging ring, the bottom end of the shell-entering guide rod is inserted into a guide sleeve penetrating through the rotor guide rod, and the bottom end of the end cover guide rod is inserted into a base connecting hole for connecting a BS end cover on a motor base, so that an assembly annular gap is formed between a central hole of the motor stator and rotor magnetic steel on the motor rotor, and the width of the assembly annular gap is 2 mm;
the fourth step, the motor rotor is slowly descended downwards through the crown block to enter a central hole of the motor stator, when the BS end cover is combined with the BS end on the motor base and the AS end cover bearing enters a bearing hole of the AS end cover, the shell entering hoisting is completed, after the end cover guide rod is removed, the BS end cover is fixedly connected with the BS end of the motor base, and the shell entering guide rod is separated from the AS end of the motor rotor by detaching a connecting screw; disassembling the fixing bolt to complete the assembly of the whole motor; the AS end is the driving end of the motor, and the BS end is the non-driving end of the motor.
The invention integrally completes the assembly of the rotor in the shell and the stator and the rotor, and the concentric arrangement of the upper guide rod and the lower guide rod and the mechanical limit of the suction resistance enable the rotor in the shell to be easy to operate, greatly improve the accuracy of the installation in the shell, and is suitable for the assembly of permanent magnet motors with various specifications and sizes.
Drawings
FIG. 1 is a schematic view of the rotor of the present invention in its configuration when inserted into a housing;
FIG. 2 is a schematic view of the rotor of the present invention after it has been inserted into the housing;
FIG. 3 is a schematic view of the rotor of the present invention prior to insertion into the housing;
FIG. 4 is a schematic structural view of the housing of the present invention before waiting for the rotor to enter the housing;
fig. 5 is a schematic view of the structure of the motor of the present invention after assembly.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a permanent magnet motor rotor in-shell one-time assembly tool comprises a crown block, a motor stator vertical placing bottom frame 24, a motor stator 21, a motor rotor 1 and a motor base 20, wherein a base end cover connecting hole 22 for connecting a BS end cover is arranged on a base BS end of the motor base 20, the motor stator 21 is assembled in the motor base 20, an AS end cover 18 is assembled on an AS end of the motor base 20, the motor base 20 is vertically placed on a base frame top plate 17 on the motor stator vertical placing bottom frame 24 through the AS end cover 18, a base frame middle plate 15 is arranged on the motor stator vertical placing bottom frame 24 right below the AS end cover 18, a penetrating guide sleeve 16 of a rotor in-shell guide rod is arranged in the center of the base frame middle plate 15, a BS end cover 4 is assembled on a BS end 3 of the motor rotor 1, an end cover connecting hole 14 for connecting the BS end cover is arranged on the BS end cover 4, a hanging ring 5 is arranged on the shaft end of the motor rotor 1 extending out of the BS end cover 4, an AS end cover bearing 7 is assembled on an AS end 6 of a motor rotor 1, a case entering guide rod 10 is connected on an AS end shaft end of the motor rotor 1, a crown block vertically suspends the motor rotor 1 right above a motor stator 21 through a suspension ring 5, an end cover guide rod 23 is inserted in an end cover connecting hole 14 for BS end cover connection on a BS end cover 4, the bottom end of the case entering guide rod 10 is inserted in a guide sleeve 16 penetrating the rotor guide rod, the bottom end of the end cover guide rod 23 is inserted in a base connecting hole 22 for BS end cover connection on a motor base 20, and an assembling annular gap 25 is formed between a central hole of the motor stator 21 and rotor magnetic steel 2 on the motor rotor 1; the AS end is the driving end of the motor, and the BS end is the non-driving end of the motor.
An AS end cover bearing entering shell guide sleeve 8 is arranged on an AS end 6 of the motor rotor 1 below the AS end cover bearing 7, a guide sleeve conical surface 9 is arranged at the lower end of the AS end cover bearing entering shell guide sleeve 8, and the AS end cover bearing entering shell guide sleeve 8 is made of rubber; a connecting screw mounting hole 11 is formed in the case entering guide rod 10, an AS end tip screw hole 13 is formed in the lower end face of the AS end 6 of the motor rotor 1, and the upper end of the case entering guide rod 10 is connected with the AS end 6 of the motor rotor 1 through the connecting screw mounting hole 11 by a connecting screw 12; the AS end cover 18 is fixed on the top plate 17 of the underframe through a fixing bolt 19; the tool utilizes the structure on a motor product, such AS a base connecting hole 22 for connecting a BS end cover, an end cover connecting hole 14 for connecting the BS end cover and an AS end tip screw hole 13 on a motor base 20, a guide sleeve 16 penetrating through a rotor housing guide rod is arranged at the center of an underframe intermediate plate 15, and the dynamic positioning and limiting of the housing entering of the motor rotor 1 are formed by the lower guide rod, namely the housing entering guide rod 10, matched limiting of the guide sleeve 16 and the upper guide rod, namely the end cover guide rod 23, which is inserted between the base connecting hole 22 for connecting the BS end cover and the end cover connecting hole 14 for connecting the BS end cover.
A one-time assembling method for a permanent magnet motor rotor in a shell comprises the following steps:
firstly, assembling a BS end cover 4 on a BS end 3 of a motor rotor 1, assembling a lifting ring 5 on a shaft end of the motor rotor 1 extending out of the BS end cover 4, assembling an AS end cover bearing 7 on an AS end 6 of the motor rotor 1, arranging an AS end cover bearing entering shell guide sleeve 8 on the AS end 6 of the motor rotor 1 below the AS end cover bearing 7, arranging a guide sleeve conical surface 9 at the lower end of the AS end cover bearing entering shell guide sleeve 8, and inserting a end cover guide rod 23 in a BS end cover connection hole 14 on the BS end cover 4;
secondly, erecting a vertical motor stator placing underframe 24, arranging an underframe middle plate 15 on the vertical motor stator placing underframe 24, and arranging a guide sleeve 16 penetrating through a rotor in-shell guide rod in the center of the underframe middle plate 15; assembling a motor stator 21 into a motor base 20, assembling an AS end cover 18 on an AS end of the motor base 20, vertically placing the motor base 20 on an underframe top plate 17 on a motor stator vertical placing underframe 24 through the AS end cover 18, and fixing through a fixing bolt 19;
thirdly, the crown block vertically hangs the motor rotor 1 right above the motor stator 21 through the hanging ring 5, inserts the bottom end of the housing guiding rod 10 into the guiding sleeve 16 penetrating the rotor guiding rod, inserts the bottom end of the end cover guiding rod 23 into the base connecting hole 22 for connecting the BS end cover on the motor base 20, so that an assembly annular gap 25 is formed between the central hole of the motor stator 21 and the rotor magnetic steel 2 on the motor rotor 1, and the width of the assembly annular gap 25 is 2 mm;
fourthly, slowly descending the motor rotor 1 downwards through a crown block to enable the motor rotor to enter a central hole of a motor stator 21, completing shell entering and hoisting after a BS end cover 4 and a BS end on a motor base 20 are combined together and an AS end cover bearing 7 enters a bearing hole of an AS end cover 18, removing an end cover guide rod 23, fixedly connecting the BS end cover 4 and the BS end of the motor base 20 together, and separating a shell entering guide rod 10 from an AS end 6 of the motor rotor 1 by detaching a connecting screw 12; and (6) disassembling the fixing bolt 19 to finish the assembly of the whole motor.

Claims (3)

1. A permanent magnet motor rotor case-entering one-time assembling tool comprises a crown block, a motor stator vertical placing bottom frame (24), a motor stator (21), a motor rotor (1) and a motor base (20), wherein a base connecting hole (22) for connecting a base end cover is arranged at a base BS end of the motor base (20), the motor stator (21) is assembled in the motor base (20), the permanent magnet motor rotor case-entering one-time assembling tool is characterized in that an AS end cover (18) is assembled at an AS end of the motor base (20), the motor base (20) is vertically placed on a bottom frame top plate (17) on the motor stator vertical placing bottom frame (24) through the AS end cover (18), a bottom frame middle plate (15) is arranged on the motor stator vertical placing bottom frame (24) right below the AS end cover (18), a rotor case-entering guide rod penetrating guide sleeve (16) is arranged at the center of the bottom frame middle plate (15), a BS end cover (4) is assembled on a BS end (3) of a motor rotor (1), an end cover connecting hole (14) for connecting the BS end cover is arranged on the BS end cover (4), a lifting ring (5) is arranged on the shaft end of the motor rotor (1) extending out of the BS end cover (4), an AS end cover bearing (7) is assembled on an AS end (6) of the motor rotor (1), a shell guide rod (10) is connected on the AS end shaft end of the motor rotor (1), a crane vertically lifts the motor rotor (1) right above a motor stator (21) through the lifting ring (5), an end cover guide rod (23) is inserted in the end cover connecting hole (14) for connecting the BS end cover on the BS end cover (4), the bottom end of the shell guide rod (10) is inserted in a guide sleeve (16) for penetrating the rotor guide rod, and the bottom end of the end cover guide rod (23) is inserted in a base connecting hole (22) for connecting the BS end cover on a motor base (20), an assembly annular gap (25) is formed between the central hole of the motor stator (21) and the rotor magnetic steel (2) on the motor rotor (1).
2. The tool for assembling the rotor into the shell of the permanent magnet motor in one step AS claimed in claim 1, wherein an AS end cap bearing guide sleeve (8) is arranged on an AS end (6) of the motor rotor (1) below the AS end cap bearing (7), and a guide sleeve conical surface (9) is arranged at the lower end of the AS end cap bearing guide sleeve (8); a connecting screw mounting hole (11) is formed in the case entering guide rod (10), an AS end tip screw hole (13) is formed in the lower end face of the AS end (6) of the motor rotor (1), and the upper end of the case entering guide rod (10) is connected with the AS end (6) of the motor rotor (1) through the connecting screw mounting hole (11) by a connecting screw (12); the AS end cover (18) is fixed on the top plate (17) of the underframe through a fixing bolt (19).
3. A one-time assembling method for a permanent magnet motor rotor in a shell comprises the following steps:
firstly, assembling a BS end cover (4) on a BS end (3) of a motor rotor (1), assembling a lifting ring (5) on the shaft end of the motor rotor (1) extending out of the BS end cover (4), assembling an AS end cover bearing (7) on an AS end (6) of the motor rotor (1), arranging an AS end cover bearing insertion shell guide sleeve (8) on the AS end (6) of the motor rotor (1) below the AS end cover bearing (7), arranging a guide sleeve conical surface (9) at the lower end of the AS end cover bearing insertion shell guide sleeve (8), and inserting an end cover guide rod (23) in an end cover connecting hole (14) for connecting the BS end cover on the BS end cover (4);
secondly, erecting a vertical motor stator placing underframe (24), arranging an underframe middle plate (15) on the vertical motor stator placing underframe (24), and arranging a guide sleeve (16) for a rotor in-shell guide rod to pass through at the center of the underframe middle plate (15); assembling a motor stator (21) into a motor base (20), assembling an AS end cover (18) on an AS end of the motor base (20), vertically placing the motor base (20) on an underframe top plate (17) on a motor stator vertical placing underframe (24) through the AS end cover (18), and fixing through a fixing bolt (19);
thirdly, the crane vertically hangs the motor rotor (1) right above the motor stator (21) through a hanging ring (5), the bottom end of the shell-entering guide rod (10) is inserted into a guide sleeve (16) of the rotor guide rod, the bottom end of the end cover guide rod (23) is inserted into a base connecting hole (22) for connecting a BS end cover on the motor base (20), an assembly annular gap (25) is formed between a central hole of the motor stator (21) and rotor magnetic steel (2) on the motor rotor (1), and the width of the assembly annular gap (25) is 2 mm;
fourthly, slowly descending the motor rotor (1) downwards through a crown block to enable the motor rotor to enter a central hole of a motor stator (21), completing shell entering and hoisting after a BS end cover (4) and a BS end on a motor base (20) are combined together and an AS end cover bearing (7) enters a bearing hole of an AS end cover (18), detaching an end cover guide rod (23), fixedly connecting the BS end cover (4) and the BS end of the motor base (20), and separating a shell entering guide rod (10) from an AS end (6) of the motor rotor (1) through detaching a connecting screw (12); and (3) disassembling the fixing bolt (19) to finish the assembly of the whole motor.
CN202010232385.XA 2020-03-28 2020-03-28 Permanent magnet motor rotor shell-entering one-time assembling tool and one-time assembling method Pending CN111313631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010232385.XA CN111313631A (en) 2020-03-28 2020-03-28 Permanent magnet motor rotor shell-entering one-time assembling tool and one-time assembling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010232385.XA CN111313631A (en) 2020-03-28 2020-03-28 Permanent magnet motor rotor shell-entering one-time assembling tool and one-time assembling method

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Publication Number Publication Date
CN111313631A true CN111313631A (en) 2020-06-19

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111555562A (en) * 2020-05-09 2020-08-18 宁德时代电机科技有限公司 Large permanent magnet motor assembling method
CN114204763A (en) * 2021-12-03 2022-03-18 宁夏西北骏马电机制造股份有限公司 Assembly process of rotor and stator of large-scale mining explosion-proof permanent magnet motor
CN114221499A (en) * 2021-11-11 2022-03-22 中船重工电机科技股份有限公司 Method for separating rotor and main shaft of through-shaft permanent magnet motor in diesel engine main shaft jacking test

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111555562A (en) * 2020-05-09 2020-08-18 宁德时代电机科技有限公司 Large permanent magnet motor assembling method
CN114221499A (en) * 2021-11-11 2022-03-22 中船重工电机科技股份有限公司 Method for separating rotor and main shaft of through-shaft permanent magnet motor in diesel engine main shaft jacking test
CN114221499B (en) * 2021-11-11 2023-09-01 中船重工电机科技股份有限公司 Method for separating rotor and main shaft of permanent magnet motor penetrating through shaft in diesel engine main shaft jacking test
CN114204763A (en) * 2021-12-03 2022-03-18 宁夏西北骏马电机制造股份有限公司 Assembly process of rotor and stator of large-scale mining explosion-proof permanent magnet motor

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