CN102315718A - Motor - Google Patents

Motor Download PDF

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Publication number
CN102315718A
CN102315718A CN2011101784718A CN201110178471A CN102315718A CN 102315718 A CN102315718 A CN 102315718A CN 2011101784718 A CN2011101784718 A CN 2011101784718A CN 201110178471 A CN201110178471 A CN 201110178471A CN 102315718 A CN102315718 A CN 102315718A
Authority
CN
China
Prior art keywords
welded
connect
rolling bearing
housing
motor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2011101784718A
Other languages
Chinese (zh)
Other versions
CN102315718B (en
Inventor
M.彼得斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN102315718A publication Critical patent/CN102315718A/en
Application granted granted Critical
Publication of CN102315718B publication Critical patent/CN102315718B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
    • H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/067—Fixing them in a housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/36—Material joints by welding

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

The present invention relates to a kind of motor; It has housing (2), axle (3) and the rolling bearing (4) that is used to bear axial force, wherein between said rolling bearing (4) and the housing (2) and/or between said rolling bearing (4) and spool (3), be provided with and be welded to connect.

Description

Motor
Technical field
The present invention relates to a kind of motor.
Background technology
In the prior art, use conventional rolling bearing at the permanently excited motor that is used for transmitting axial force, form fit or the power transmission vertically of said rolling bearing be fixed on ordinatedly that axle is gone up and/or housing in.At this, conventional connection type otherwise need trouble prolong process steps of breaks in production flow process in other words or the additional parts that needs to increase the quantity of process steps and improve manufacturing cost in time.
Summary of the invention
Relatively have the following advantages by motor of the present invention, promptly be welded to connect forming between rolling bearing and the housing to be welded to connect and/or between rolling bearing and axle, to form.Thus, can form with low cost being connected in other words between the axle with the housing of motor with the rolling bearing rings of simple mode the inside in other words outside, axial force can born reliablely and support to this connection.Can the time make motor with minimum parts and process steps effectively and continuously thus.
According to preferred design of the present invention, said welding connection structure become fully around.Realize uniform connection thus, and do not had uncertain stress state.
In other favourable design of the present invention, saidly be welded to connect once or repeatedly interruptedly constitute.The manufacture process in the cycle that can realize having minimized energy input thus and lack, and can not limit intensity.In addition, also can single pad only be set at circumference, said pad is enough for intensity that is proposed that connects and fatigue strength.
Preferred said being welded to connect on the axial side that is arranged in rolling bearing.According to preferred design of the present invention, said being welded to connect on the side radially that is arranged in rolling bearing.Can the rolling bearing rings the inside and/or the outside especially be fixed on the distolateral (Mantelfl of side face in other words of housing thus with mode simple and with low cost Che) on.
In other favourable design of the present invention, said being welded to connect passed housing and welded.Thus, can between the outer shroud of housing and rolling bearing, form reliable being connected, and can not make housing distortion or twist by means of the input of enough energy.
Preferred said connection has at least two parallel being welded to connect.Through arranging two or the more a plurality of parallel bigger axial force that also can bear motor reliably that is welded to connect.Said parallel being welded to connect not only can be fully around the ground structure, and can be once or repeatedly interrupt or point-like ground constitute.
In addition, being welded to connect between outer shroud between the interior ring of preferable configuration rolling bearing and the axle and/or rolling bearing and the housing.By means of said floating bearing and the rigid bearing that to construct motor with material, time and the cost cost of minimum that be welded to connect; In floating bearing outer shroud be connected with housing or in ring with spool be connected, in rigid bearing outer shroud be connected with housing and interior ring with spool be connected.
In other favourable design of the present invention, said being welded to connect is that laser welding connects.The use that laser welding connects has realized the insertion of not exerting oneself of rolling bearing, and needn't support the rolling bearing the inside and/or the outside.In addition, the intensity that in laser welding, realize to connect immediately makes the next process steps of manufacturing of motor can have no time to postpone or interruptedly directly following.
In addition, the present invention relates to a kind of method that is used to make motor, this method comprises rolling bearing is welded to the step on the axle of housing and/or motor of motor.Thus can time and the cost reliable seamless connection of formation between said parts best.
According to preferred design of the present invention, especially by means of the step of laser through realizing on the outer shroud that passes housing from the outside and energy is input to rolling bearing welding.Can in a unique process steps, be connected with housing inserting pre-installing in other words in the housing thus at the bearing on the axle without complex appts ground.
Description of drawings
With reference to the accompanying drawings embodiments of the invention are described in detail.Shown in the drawings:
Fig. 1 is the phantom by the motor of first preferred embodiment of the present invention,
Fig. 2 is the part perspective view of the motor of Fig. 1,
Fig. 3 is the part perspective view by the motor of second preferred embodiment of the present invention, and
Fig. 4 is the another part perspective view of the motor of Fig. 3.
Embodiment
Describe in detail by the motor according to first preferred embodiment of the present invention with reference to Fig. 1 and 2 below.
Fig. 1 shows the phantom of motor 1, and this motor has housing 2, axle 3 and rolling bearing 4, ring 5, outer shroud 6 and a large amount of rolling element 7 in this rolling bearing has, but in these rolling elements in cutaway view only insight show two rolling elements 7.Lean against on the housing bottom 9 in shell end zone 8 of housing 2 rolling bearing 4 with outer shroud 6 by means of on the housing 2 fully around be arranged in parallel first and second be welded to connect 10,11 and fix.Thus, said rolling bearing 4 has formed the floating bearing of motor 1, and the outer shroud 6 of this bearing is fixed on the housing 2 and the interior ring 5 of this bearing rotatably supports said axle 3.As replacement scheme, the design as rigid bearing also can be set, wherein said interior ring 5 is welded on the axle 3 by means of laser extraly.
As can seeing among Fig. 2, said two 10,11 forms of radially preferably being welded to connect with laser from the outside 13 of housing 2 that are welded to connect are passed housing 2 and are applied welding in other words.At this, laser beam radially focuses on the housing 2 from the outside, thereby because the energy of lasers that applies input, structure is welded to connect 10,11 between said outer shroud 6 and housing 2.Replace said two parallel first and second to be welded to connect 10,11, also can for fixing said outer shroud 6 only be provided with one single fully around be welded to connect.In addition, replace one or more fully around be welded to connect, being welded to connect that one or more one or many interrupts also can alternatively be set.In addition, one or each be welded to connect also can be configured to single with the angular distance predesignated each other away from the form of the pad of arranging.
Describe in detail by the motor according to second preferred embodiment of the present invention with reference to Fig. 3 and 4 below.At this, the identical identical parts of function in other words use the Reference numeral identical with first embodiment to represent.
Like what from Fig. 3, see, different with first embodiment is, third and fourth is welded to connect 20,21 and is configured on the housing 2 distolateral in other words vertically in this second embodiment.Said housing is sleeve 22 in this embodiment.At this, be welded to connect 20 at (Fig. 3) structure the said the 3rd in the boundary zone of the inner periphery of the axial excircle of outer shroud 6 and housing 2 through applying laser energy.Structure the said the 4th is welded to connect 21 in the boundary zone of the inner periphery of the excircle of axle 3 and interior ring 5 through laser energy is applied to.(referring to Fig. 4) on the opposite axial sides of the inside of sleeve 22 rolling bearing 4 in an identical manner in the boundary zone between outer shroud 6 and sleeve 22 structure the 5th be welded to connect 23 and boundary zone between axle 3 and interior ring 5 in structure the 6th be welded to connect 24.
Being welded to connect 20,21,23,24 through ring 5 and outer shroud 6 in said by means of the 3rd, the 4th, the 5th and the 6th is fixed on the sleeve 22; Said rolling bearing 4 has formed the rigid bearing of motor 1, and this rigid bearing also can bear and support bigger axial force and the impact that is occurred reliably.In axial force hour, also can alternatively only will be welded to connect 20 and 21 be configured in sleeve 22 distolateral go up perhaps will be welded to connect 23 and 24 be configured in sleeve 22 inside be used for fixing rolling bearing 4.
As replacement scheme, can be through axially only welding a bearer ring in other words distolateral, with said rolling bearing 4 also as floating bearing.For this reason, in the embodiment that do not illustrate here, for example also can said outer shroud 6 axially be welded with the end regions 9 (referring to Fig. 1) of housing 2.
As among first embodiment; The said the 3rd, the 4th, the 5th and the 6th be welded to connect 20,21,23,24 can be in said second embodiment not only fully around ground but also can once or repeatedly interrupt, perhaps be configured to point-like with the angular interval of confirming.
Two described embodiment have the following advantages by motor 1 of the present invention, and promptly axial between the interior ring 5 of rolling bearing 4 and/or outer shroud 6 and housing 2 or sleeve 22 or axle 3 and/or being welded to connect radially 10,11,20,21,23,24 can be made with simple mode and with minimum component costs cheaply.Be welded to connect 10,11,20,21,23,24 and can be used to bear and support the seamless connection of formation between the corresponding component that appears at the axial force on the motor 1 by means of said.
Through by the method that is used to make motor 1 of the present invention, can in a unique method step, connect by means of laser welding formation time and the effective material of cost.Through the end intensity that realizes immediately being welded to connect, do not need the temporal extension or the interruption of manufacture process, realized that thus the tangible efficient of manufacture process improves.

Claims (12)

  1. Motor,
    -have a housing (2),
    -have spool (3), and
    -have a rolling bearing (4) that is used to bear axial force,
    Wherein, be welded to connect being provided with between (3) between said rolling bearing (4) and the housing (2) and/or at said rolling bearing (4) and axle.
  2. By the described motor of claim 1, it is characterized in that said being welded to connect fully constitutes around ground.
  3. By the described motor of claim 1, it is characterized in that said being welded to connect once or repeatedly interruption.
  4. By each described motor in the claim 1 to 3, it is characterized in that said being welded to connect on the axial side that is arranged in rolling bearing (4).
  5. By each described motor in the claim 1 to 3, it is characterized in that said being welded to connect on the side radially that is arranged in rolling bearing (4).
  6. By the described motor of claim 5, it is characterized in that said being welded to connect passed housing (2) and welded.
  7. By claim 5 or 6 described motors, it is characterized in that having two parallel being welded to connect.
  8. By each described motor in the aforesaid right requirement, it is characterized in that, between the interior ring (5) of said rolling bearing (4) and the axle (3) and/or between the outer shroud (6) of rolling bearing (4) and housing (2), construct and be welded to connect.
  9. By each described motor in the aforesaid right requirement, it is characterized in that said housing (2) comprises sleeve (22).
  10. By each described motor in the aforesaid right requirement, it is characterized in that said being welded to connect is that laser welding connects.
  11. Be used to make the method for motor, this method has following steps:
    -housing (2) that rolling bearing (4) is welded to motor (1) go up and/or the axle (3) of motor on.
  12. By the described method of claim 11, it is characterized in that, especially by means of the step of laser through realizing on the outer shroud (6) that passes housing (2) from the outside and energy is input to rolling bearing (4) welding.
CN201110178471.8A 2010-06-30 2011-06-29 Motor Expired - Fee Related CN102315718B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010030774A DE102010030774A1 (en) 2010-06-30 2010-06-30 Electric machine for transmitting axial force, has rolling bearing for receiving axial forces, and welded joint provided between rolling bearing and housing and/or between rolling bearing and shaft, where housing comprises collet
DE102010030774.2 2010-06-30

Publications (2)

Publication Number Publication Date
CN102315718A true CN102315718A (en) 2012-01-11
CN102315718B CN102315718B (en) 2017-04-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110178471.8A Expired - Fee Related CN102315718B (en) 2010-06-30 2011-06-29 Motor

Country Status (2)

Country Link
CN (1) CN102315718B (en)
DE (1) DE102010030774A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296822A (en) * 2012-03-05 2013-09-11 捷和电机（深圳）有限公司 Miniature motor and bearing arrangement
CN103296820A (en) * 2012-03-05 2013-09-11 捷和电机（深圳）有限公司 Miniature motor and bearing arrangement
CN103296821A (en) * 2012-03-05 2013-09-11 捷和电机（深圳）有限公司 Miniature motor and bearing arrangement

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103192180B (en) * 2013-04-11 2016-01-20 重庆市灵龙电子有限公司 Motor for cell phone stator module casing and bearing holder (housing, cover) laser welding process
DE102015217697A1 (en) 2015-09-16 2017-03-16 Continental Automotive Gmbh Electric machine with welded connection
DE102015220032B4 (en) 2015-10-15 2020-07-16 Vitesco Technologies GmbH Connection arrangement of two components of an electrical machine, in particular for a motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921423A1 (en) * 1988-06-29 1990-01-04 Toshiba Kawasaki Kk Compression device having an outer housing with a double weld layer, and method for welding an outer housing and a compression unit
JPH07238943A (en) * 1994-03-01 1995-09-12 Fuji Electric Co Ltd Connection method for shaft and bearing of small-sized motor
US5529404A (en) * 1994-06-01 1996-06-25 Seagate Technology, Inc. Adhesiveless assembly with laser welding
US20040061399A1 (en) * 2002-07-19 2004-04-01 Naoto Seshita Motor-contained electric actuator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3921423A1 (en) * 1988-06-29 1990-01-04 Toshiba Kawasaki Kk Compression device having an outer housing with a double weld layer, and method for welding an outer housing and a compression unit
JPH07238943A (en) * 1994-03-01 1995-09-12 Fuji Electric Co Ltd Connection method for shaft and bearing of small-sized motor
US5529404A (en) * 1994-06-01 1996-06-25 Seagate Technology, Inc. Adhesiveless assembly with laser welding
US20040061399A1 (en) * 2002-07-19 2004-04-01 Naoto Seshita Motor-contained electric actuator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103296822A (en) * 2012-03-05 2013-09-11 捷和电机（深圳）有限公司 Miniature motor and bearing arrangement
CN103296820A (en) * 2012-03-05 2013-09-11 捷和电机（深圳）有限公司 Miniature motor and bearing arrangement
CN103296821A (en) * 2012-03-05 2013-09-11 捷和电机（深圳）有限公司 Miniature motor and bearing arrangement

Also Published As

Publication number Publication date
DE102010030774A1 (en) 2012-01-05
CN102315718B (en) 2017-04-26

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