CN109861437A - A kind of adjustable electric machine structure of wheelbase and its assembly method - Google Patents
A kind of adjustable electric machine structure of wheelbase and its assembly method Download PDFInfo
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- CN109861437A CN109861437A CN201910124763.XA CN201910124763A CN109861437A CN 109861437 A CN109861437 A CN 109861437A CN 201910124763 A CN201910124763 A CN 201910124763A CN 109861437 A CN109861437 A CN 109861437A
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- bearing
- end cap
- rear end
- motor
- electric machine
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Abstract
The present invention provides a kind of adjustable electric machine structure of wheelbase and its assembly method, solve the problems, such as that motor shaft is difficult away from adjusting in the prior art.The electric machine structure includes housing unit, rotor assembly, drive end bearing bracket, rear end cap, first bearing, second bearing, circlip for hole and adjustment gasket；The present invention still further provides the assembly method of the electric machine structure.The structure that the present invention passes through improvement back end cover for motor, make electric machine structure in the axial distance that motor is adjusted, no matter the rear end cap of motor, which is adopted, is screwed or laser welding is fixed, the step of can saving disassembly rear end cap, the time for saving assembly installation motor, improve production efficiency.
Description
Technical field
The invention belongs to technical field of motors, it is related to a kind of adjustable electric machine structure of wheelbase and its assembly method.
Background technique
The axial spacing of motor is an important parameter, and motor is when operating normally, performance of the axial spacing to motor
It has a certain impact.The axial spacing of motor is to be adjusted by placing adjustment gasket in end cap, but fill to electric motor end cap
After preparing, in this closed structure, adjustment gasket can not be further taken out or placed to adjust the axial spacing of motor, only
End cap is disassembled, after new placement adjustment gasket, installation assembly, can just be adjusted the axial distance of motor again
It is whole, and there is the rear end cap of some motors generally to fix by the way of welding, the rear end cap of assemble welding dismantles difficulty, so
Certain difficulty is brought to assembly and debugging process.The existing specific assembly flow charts of motor, referring to Fig. 4.
Summary of the invention
In order to solve the above technical problem, the present invention provides one kind can save the time of assembly installation motor, improves production
The adjustable electric machine structure of the wheelbase of efficiency and its assembly method.
In order to achieve the above object, the present invention adopts the following technical scheme: a kind of adjustable electric machine structure of wheelbase, the motor
Structure includes housing unit, rotor assembly, drive end bearing bracket, rear end cap, first bearing, second bearing, circlip for hole and adjustment
Gasket；
The housing unit includes shell and stator module, shell of the stator module by interference fit press fitting to after heating
It is interior, housing unit is formed, the stator module includes stator core and stator winding, and stator winding is mounted in stator core；
The rotor assembly is placed in inside housing unit, and the rotor assembly includes rotor core, axis, permanent magnet, rotor
Sheath and balancing loop, the rotor core interference are fitted on axis, prevent axis and rotor core from rotating, permanent magnet bonding
On rotor core, rotor jacket gluing simultaneously covers on permanent magnet, prevent in rotor high speed rotation permanent magnet occur from
The heart falls off, and balancing loop is pressed on axis, is close to rotor core both sides, for calibrating dynamic balancing function；
The drive end bearing bracket and rear end cap are separately mounted to the both ends of housing unit, are separately installed with first at the both ends of axle body
Bearing and second bearing, first bearing and second bearing are respectively placed in drive end bearing bracket and rear end cap；
The circlip for hole is sleeved on the periphery of axis and is axially mounted in rear end cap, and is placed in the end of second bearing
End, and there is interval between second bearing, the periphery of the axis between circlip for hole and second bearing is equipped with n use
In adjustment motor shaft away from adjustment gasket.
Further, the rear end cap includes rear end cap ontology, and rear end cap ontology middle is equipped with for accommodating the
The second bearing room of two bearings is equipped with annular groove in the end of second bearing room, and circlip for hole is mounted on and hole bullet
In the annular groove that property retaining ring matches, sealed.
Further, interference is fitted in the both ends of axle body respectively for the first bearing and second bearing.
Further, it is fixed respectively by screw or laser welding between the drive end bearing bracket, rear end cap and shell.
Further, the n is the integer more than or equal to 1.
The present invention additionally provides a kind of assembly methods of the adjustable electric machine structure of wheelbase, specifically includes the following steps:
Step 1: the shell of motor being heated, its expansion is made, and then by stator module hot charging to shell, forms shell
Component；
Step 2: drive end bearing bracket is fixed to the front end of shell by screw or laser welding；
First bearing and second bearing: being pressed into the both ends of the axis of rotor assembly by step 3, then again with first
Bearing and the rotor assembly of second bearing are put into housing unit, and first bearing is placed in the first bearing room of drive end bearing bracket, so
Afterwards again by screw or the fixed rear end cap of Laser Welding, second bearing should be placed in the second bearing room of rear end cap at this time；
Step 4: and then adjustment gasket is placed in the periphery of second bearing terminal shaft, to adjust the axial distance of motor；
Step 5: check motor axial distance it is whether suitable, if still improper, skip to step 4, continue through increase or
The axial spacing that adjustment gasket adjusts motor is reduced, until suitable；
Step 6: in rear end cap upper installing hole circlip, it is packaged motor；
Step 7: motor assembly is completed.
Compared with prior art, pass through the structure for improving back end cover for motor the invention has the following beneficial effects: the present invention,
Make electric machine structure in the axial distance that motor is adjusted, no matter the rear end cap of motor, which is adopted, is screwed or laser welding
It is fixed, the step of dismantling rear end cap can be saved, the time of assembly installation motor is saved, improves production efficiency.
Detailed description of the invention
Fig. 1 is the adjustable electric machine structure schematic diagram of wheelbase of the invention；
Fig. 2 is the structural schematic diagram of rear end cap；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the specific assembly flow charts of motor of the prior art；
Fig. 5 is the adjustable motor assembly flow charts of wheelbase of the invention；
In figure: 1- housing unit；1-1- shell；1-2- stator module；
2- rotor assembly；2-1- rotor core；2-2- axis；2-3- permanent magnet；2-4- rotor jacket；2-5- balancing loop；
3- drive end bearing bracket；3-1- drive end bearing bracket ontology；3-2- first bearing room；3-3- stepped hole；4- rear end cap；4-1- rear end cap ontology；4-
2- second bearing room；4-3- annular groove；5- first bearing；6- second bearing；7- circlip for hole；8- adjusts gasket.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment
Referring to Fig.1-3, the adjustable electric machine structure of a kind of wheelbase, which includes housing unit 1, rotor assembly 2, preceding
End cap 3, rear end cap 4, first bearing 5, second bearing 6, circlip for hole 7 and adjustment gasket 8；
The housing unit 1 includes shell 1-1 and stator module 1-2, and stator module 1-2 is extremely added by interference fit press fitting
In shell 1-1 after heat, housing unit 1 is formed, the stator module 1-2 includes stator core 1-2-1 and stator winding 1-2-
2, stator winding 1-2-2, which are mounted in stator core 1-2-1, forms stator module 1-2；
The rotor assembly 2 is placed in inside housing unit 1, and the rotor assembly 2 includes rotor core 2-1, axis 2-2, forever
Magnet 2-3, rotor jacket 2-4 and balancing loop 2-5, the rotor core 2-1 interference are fitted on axis 2-2, prevent axis 2-2 and
Rotor core 2-1 rotates, and permanent magnet 2-3 is bonded on rotor core 2-1, and rotor jacket 2-4 gluing is simultaneously covered in permanent magnet
On 2-3, prevent the permanent magnet 2-3 generation centrifugation in rotor high speed rotation from falling off, balancing loop 2-5 is pressed on axis 2-2,
It is close to the both sides rotor core 2-1, for calibrating dynamic balancing function；
The drive end bearing bracket 3 and rear end cap 4 are separately mounted to the both ends of housing unit 1, are separately installed at the both ends of axle body
First bearing 5 and second bearing 6, first bearing 5 and second bearing 6 are respectively placed in drive end bearing bracket 3 and rear end cap 4, and the two of axis 2-2
End is pierced by drive end bearing bracket 3 and rear end cap 4 respectively；
The circlip for hole 7 is sleeved on the periphery of axis 2-2 and is axially mounted in rear end cap 4, and is placed in the second axis
6 end is held, and there is interval between second bearing 6, the axis 2-2's between circlip for hole 7 and second bearing 6 is outer
Be equipped in week n for adjust motor shaft away from adjustment gasket 8, adjustment gasket 8 is the iron plate of annulus shape, and n is more than or equal to 1
Integer.
The drive end bearing bracket 3 includes drive end bearing bracket ontology 3-1, and the middle drive end bearing bracket ontology 3-1 is equipped with for accommodating first
The front end of the first bearing room 3-2 of bearing 5, first bearing room 3-2 are equipped with stepped hole 3-3, prevent drive end bearing bracket 3 and first bearing 5
Inner ring has friction, and then hinders the rotation of first bearing inner ring.
The rear end cap 4 includes rear end cap ontology 4-1, and the middle rear end cap ontology 4-1 is equipped with for accommodating second
The second bearing room 4-2 of bearing 6, second bearing room 4-2 are circular through hole, and in second bearing room, it is recessed to be equipped with annular for the end of 4-2
Slot 4-3, circlip for hole 7 are mounted in the annular groove 4-3 to match with circlip for hole 7, are sealed.
Interference is fitted in the both ends of axle body respectively for the first bearing 5 and second bearing 6.First bearing is placed in axis one end
Between the shaft shoulder and stepped hole 3-3 inner side end, the front end face of second bearing is withstood on the shaft shoulder of the axis other end.
It is fixed respectively by screw or laser welding between the drive end bearing bracket 3, rear end cap 4 and shell 1-1.
Referring to Fig. 5, the present invention additionally provides a kind of assembly methods of the adjustable electric machine structure of wheelbase, specifically include following step
It is rapid:
Step 1: the shell 1-1 of motor being heated, its expansion is made, then by stator module 1-2 hot charging to shell 1-1,
Form housing unit 1；
Step 2: drive end bearing bracket 3 is fixed to the front end of shell 1-1 by screw or laser welding；
First bearing 5 and second bearing 6: being pressed into the both ends of the axis 2-2 of rotor assembly by step 3, then again having
The rotor assembly 2 of first bearing 5 and second bearing 6 is put into housing unit 1, and first bearing 5 is placed in the first axle of drive end bearing bracket 3
It holds in the 3-2 of room, then again by the fixed rear end cap 4 of screw or Laser Welding, second bearing 6 should be placed in the of rear end cap 4 at this time
In two bearing chamber 4-2；
Step 4: and then placing adjustment gasket 8 in the periphery of 6 terminal shaft 2-2 of second bearing, come adjust motor it is axial away from
From；The thickness of adjustment gasket 8 is selected according to the actual situation, generally 0.2mm；
Step 5: check whether motor axial distance is suitable, if improper, skips to step 4, continues through increasing and add deduct
Adjustment gasket 8 adjusts the axial spacing of motor less, until suitable；
Step 6: in rear end cap 4 upper installing hole circlip 7, it is packaged motor；
Step 7: motor assembly is completed.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (6)
1. a kind of adjustable electric machine structure of wheelbase, which is characterized in that the electric machine structure includes housing unit, rotor assembly, front end
Lid, rear end cap, first bearing, second bearing, circlip for hole and adjustment gasket；
The housing unit includes shell and stator module, and stator module is pressed in the shell to after heating by interference fit,
Housing unit is formed, the stator module includes stator core and stator winding, and stator winding is mounted in stator core；
The rotor assembly is placed in inside housing unit, and the rotor assembly includes rotor core, axis, permanent magnet, rotor jacket
And balancing loop, the rotor core interference are fitted on axis, prevent axis and rotor core from rotating, permanent magnet, which is bonded in, to be turned
On sub- iron core, rotor jacket gluing simultaneously covers on permanent magnet, prevents the permanent magnet generation centrifugation in rotor high speed rotation de-
It falls, balancing loop is pressed on axis, is close to rotor core both sides, for calibrating dynamic balancing function；
The drive end bearing bracket and rear end cap are separately mounted to the both ends of housing unit, are separately installed with first bearing at the both ends of axle body
And second bearing, first bearing and second bearing are respectively placed in drive end bearing bracket and rear end cap；
The circlip for hole is sleeved on the periphery of axis and is axially mounted in rear end cap, and is placed in the end of second bearing,
And there is interval between second bearing, the periphery of the axis between circlip for hole and second bearing is equipped with n and is used for
Adjust motor shaft away from adjustment gasket.
2. a kind of adjustable electric machine structure of wheelbase as described in claim 1, which is characterized in that the rear end cap includes rear end cap
Ontology, rear end cap ontology middle is equipped with the second bearing room for accommodating second bearing, in the end of second bearing room
Equipped with annular groove, circlip for hole is mounted in the annular groove to match with circlip for hole, is sealed.
3. a kind of adjustable electric machine structure of wheelbase as described in claim 1, which is characterized in that the first bearing and the second axis
Hold the both ends that interference respectively is fitted in axle body.
4. a kind of adjustable electric machine structure of wheelbase as described in claim 1, which is characterized in that the drive end bearing bracket, rear end cap with
It is fixed respectively by screw or laser welding between shell.
5. a kind of adjustable electric machine structure of wheelbase as described in claim 1, which is characterized in that the n is whole more than or equal to 1
Number.
6. a kind of assembly method of the adjustable electric machine structure of wheelbase, specifically includes the following steps:
Step 1: the shell of motor being heated, its expansion is made, and then by stator module hot charging to shell, forms housing unit；
Step 2: drive end bearing bracket is fixed to the front end of shell by screw or laser welding；
First bearing and second bearing: being pressed into the both ends of the axis of rotor assembly by step 3, then again with first bearing
It is put into housing unit with the rotor assembly of second bearing, first bearing is placed in the first bearing room of drive end bearing bracket, then again
By screw or the fixed rear end cap of Laser Welding, second bearing should be placed in the second bearing room of rear end cap at this time；
Step 4: and then adjustment gasket is placed in the periphery of second bearing terminal shaft, to adjust the axial distance of motor；
Step 5: check whether motor axial distance is suitable, if still improper, skips to step 4, continues through and increase or decrease
The axial spacing that gasket adjusts motor is adjusted, until suitable；
Step 6: in rear end cap upper installing hole circlip, it is packaged motor；
Step 7: motor assembly is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124763.XA CN109861437A (en) | 2019-02-20 | 2019-02-20 | A kind of adjustable electric machine structure of wheelbase and its assembly method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910124763.XA CN109861437A (en) | 2019-02-20 | 2019-02-20 | A kind of adjustable electric machine structure of wheelbase and its assembly method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109861437A true CN109861437A (en) | 2019-06-07 |
Family
ID=66898348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910124763.XA Pending CN109861437A (en) | 2019-02-20 | 2019-02-20 | A kind of adjustable electric machine structure of wheelbase and its assembly method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696510A (en) * | 2022-04-06 | 2022-07-01 | 江苏三江电器集团股份有限公司 | Brushless motor for fan of clothes dryer |
| CN115441646A (en) * | 2022-11-09 | 2022-12-06 | 四川埃姆克伺服科技有限公司 | Motor and complete machine dynamic balance method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014094442A (en) * | 2012-11-12 | 2014-05-22 | Nsk Ltd | Main spindle device of motor built-in system and machine tool including the same |
| CN204316300U (en) * | 2014-11-28 | 2015-05-06 | 沈阳兴华航空电器有限责任公司 | A kind of compact high precision stepping motor |
| CN209659053U (en) * | 2019-02-20 | 2019-11-19 | 沈阳兴华航空电器有限责任公司 | A kind of adjustable electric machine structure of wheelbase |
-
2019
- 2019-02-20 CN CN201910124763.XA patent/CN109861437A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014094442A (en) * | 2012-11-12 | 2014-05-22 | Nsk Ltd | Main spindle device of motor built-in system and machine tool including the same |
| CN204316300U (en) * | 2014-11-28 | 2015-05-06 | 沈阳兴华航空电器有限责任公司 | A kind of compact high precision stepping motor |
| CN209659053U (en) * | 2019-02-20 | 2019-11-19 | 沈阳兴华航空电器有限责任公司 | A kind of adjustable electric machine structure of wheelbase |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114696510A (en) * | 2022-04-06 | 2022-07-01 | 江苏三江电器集团股份有限公司 | Brushless motor for fan of clothes dryer |
| CN114696510B (en) * | 2022-04-06 | 2022-10-04 | 江苏三江电器集团股份有限公司 | Brushless motor for fan of clothes dryer |
| CN115441646A (en) * | 2022-11-09 | 2022-12-06 | 四川埃姆克伺服科技有限公司 | Motor and complete machine dynamic balance method thereof |
| CN115441646B (en) * | 2022-11-09 | 2023-03-21 | 四川埃姆克伺服科技有限公司 | Motor and complete machine dynamic balance method thereof |
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