CN1922777A - Electric drive unit - Google Patents
Electric drive unit Download PDFInfo
- Publication number
- CN1922777A CN1922777A CNA2005800052664A CN200580005266A CN1922777A CN 1922777 A CN1922777 A CN 1922777A CN A2005800052664 A CNA2005800052664 A CN A2005800052664A CN 200580005266 A CN200580005266 A CN 200580005266A CN 1922777 A CN1922777 A CN 1922777A
- Authority
- CN
- China
- Prior art keywords
- armature spindle
- drive unit
- electric drive
- meshing part
- bearing
- 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
Links
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 208000001840 Dandruff Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/081—Structural association with bearings specially adapted for worm gear drives
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
- H02K7/1163—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion
- H02K7/1166—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears where at least two gears have non-parallel axes without having orbital motion comprising worm and worm-wheel
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
- Gear Transmission (AREA)
Abstract
In a gear drive unit ( 10 ), in particular for adjusting moving parts in the motor vehicle, having a rotor shaft ( 18 ) supported in a housing ( 16 ) and braced axially on the housing ( 16 ) via at least one face end ( 50 ) and in which a separate toothed element ( 32 ) for transmitting torque to a gear component ( 38, 40 ) is secured to the rotor shaft ( 18 ), the toothed element ( 32 ) has an axial bearing face ( 48 ) that rests on one of the face ends ( 50 ) of the rotor shaft ( 18 ).
Description
Background technology
The present invention relates to a kind of as independent claims electric drive unit as described in the preamble, in particular for adjusting the electric drive unit of the movable part in the automobile.
By the known such driver element of DE 297 02 525U1, one of them drive motors is connected with the transmission device function of a postposition by an armature shaft.This armature shaft is bearing in the housings of body more than multiplely and extends to the transmission device position always.On armature shaft, press-fit one and worm gear engaged worm.Armature shaft is bearing on the shell by starting board and a damping mechanism on the worm screw end face.
For this drive unit that for example in glass pane or seat are adjusted, uses on worm screw not only effect radially with the active force of circumferencial direction, and act on axial active force.Especially when wanting controlled parts to overcome a backstop to move, the strong responsive to axial force of impact type may make being connected between armature shaft and the worm screw that press-fits thereon become flexible on worm screw thus.
Summary of the invention
Be axial force strong and that impact type acts on the meshing part to be directed on the shell according to the advantage with device of independent claims 1 feature of the present invention by on the meshing part that is bearing on the armature spindle, constituting an axial contact-making surface.Meshing part leans against on the one hand by its contact-making surface on the end face of armature spindle for this reason, and axially mounting makes to be connected the torque of a conduction on this meshing part at armature shaft with anti-relatively rotating between the meshing part on shell on the other hand.Meshing part is connected with form fit between the armature spindle or power transmission connect be limited on the littler axial position or littler radially shaped portion (Verformung) on, obviously simplify the assembling of meshing part thus.
Realize favourable improvement project by described feature in the dependent claims according to the device of independent claims.Can be especially simple and save ground, space and make contact-making surface pass through a bottom surface realization in the hole.Apply the axial blind hole at a center for this reason in meshing part, produce the external toothing parts of a shell-like thus, it is connected on the axial end portion at least partly.
For making on its blind hole bottom surface one side that is made of contact-making surface in an advantageous manner, the axially mounting meshing part leans on the end face of armature spindle, and one lean on a case member with the opposed bearing-surface of contact-making surface, perhaps leans on a support unit that is arranged in this case member.
In order to reduce the friction that driver element is in operation, in order to improve its efficient, described bearing-surface particularly advantageously is made of the surface of arching in other words, it be bearing in form near point-like a plane correspondence with the fixing surface of shell on.If with the fixing surface of shell on form such radius and the bearing-surface respective planes ground of meshing part constituted, then can realize identical functions.
In order to make blind hole the inside that armature spindle is assembled to meshing part advantageously, on the bottom surface in hole, constitute a through hole, the air in blind hole is overflowed.This through hole can be particularly advantageous for supporting a spheroid, and it constitutes the bearing-surface of an arching, by it meshing part is bearing on the shell.
Meshing part is anti-to be fixed on the armature spindle with relatively rotating in order to make, and forms radially shaped portion by material deformation on armature shaft, and it has one than the corresponding bigger external diameter of hole internal diameter.Produce according to armature spindle and combination of materials between the meshing part that a power transmission is connected when press-fiting meshing part or form fit connects or both combinations at this.
Because this is anti-to relatively rotate to connect and need not to bear axial force and can constitute radially shaped portion like this, makes can reduce assembly force when press-fiting meshing part.
The for example following assembly force that reduces, make shaped portion radially only be formed on the end of armature spindle and make the hole at the corresponding diameter at this position less than the diameter on all the other length in hole.
Can make the advantageously continuous grinding (durchgangsschleifen) on its whole length of armature spindle cost for this anti-structure that relatively rotates connection, thus can shaped portion be inserted into a bearing on the bearing pedestal of armature spindle jumping over radially on this length.Described here radially shaped portion for example is made of an annular knurl, and it finish grindes and be pressed into axle has the more the inside, position in the hole of minor diameter.
If only being connected between armature spindle and the meshing part hole is made of interference fit, can obviously reduce to be used to assemble the required power that is pressed into thus on the part of its length.All the other positions in hole advantageously are made of matched in clearance, and wherein this position is used to make meshing part centering.
Described meshing part this fixedly is specially adapted to a worm gearing, wherein meshing part and worm gear engagement that is made of worm screw.Can obviously reduce pressure assembling force required when assembling the shell-like worm screw at this.But this connection also is applicable to the gears engaged unit architecture with straight-tooth or helical teeth, it and a corresponding engaging tooth, for example output gear engagement.
Description of drawings
Shown in the drawings according to device of the present invention an embodiment and be discussed in more detail below.
Fig. 1 illustrates a partial section according to electric drive unit of the present invention.
Embodiment
An electric drive unit 10 shown in Figure 1, it has a motor 12, a transmission device 14 and many body case 16 of surrounding them.Motor 12 has one and is bearing in an armature core 20 on the armature spindle 18, and it has electric winding 22.They and magnet 24 concur, and magnet is arranged on shell 16 the insides that are made of utmost point alms bowl (Poltopf) 26.Described armature spindle 18 for example is bearing in shell 16 the insides by slip or rolling bearing 28 here and extends to the inside, position of transmission device 14 by an end 30 always.A meshing part 32 is set on armature spindle 18, and it is made of worm screw 34 in the present embodiment.Tooth portion 36 engagements of this meshing part 32 and a drive disk assembly 38, this drive disk assembly here is made of worm gear 40 and is bearing on the fixing bearing pin 42 of a shell.Described drive disk assembly 38 is connected with the actuator of an activity that is not shown specifically, and this actuator for example regulates the seat in the automobile.Described meshing part 32 is made and is had a centre bore 44 by parts independently, and it is made of blind hole.This hole, 44 bottom has a bottom surface 46 in the hole, and it constitutes axial contact-making surface 48 and leans on an end face 50 of armature spindle 18.A through hole 52 is set on bottom surface 46, when being assemblied in meshing part 32 on the armature spindle 18, makes air can escape into the external world by it.What this through hole 52 constituted spherical bearing parts 56 here simultaneously holds body 54, and the sphere 58 of this support unit constitutes an axially mounting face 60 of meshing parts 32, and this bearing-surface has a radius 59.Described armature spindle 18 is bearing on the axial contact-making surface 48 of meshing part 32 by its end face 50.This meshing part 32 is bearing on the corresponding surface 62 of shell 16 by its axially mounting face 60 by being bearing in the spheroid 56 that holds body 54 the insides again.Be bearing in equally on the fixing corresponding surface 62 of a shell at this armature spindle on the unshowned opposite end of armature spindle 18.For at least one corresponding surface 62 of the end play of eliminating armature spindle 18 is arranged on the adjustment component 64, this adjustment component with a given roof pressure power 66 with respect to axially mounting face 60 roof pressures.This adjustment component 64 for example is made of the adjustment bolt 68 with a screw thread 69 for this reason, perhaps is made of wall body 70 the insides of its precession shell 16 support unit 64 with planar radial linking arm.This adjustment component 64 has a form fit connection 72 for this reason, can insert a corresponding assembly tool therein.
For transmit torque between armature spindle 18 and the meshing part 32 on the end 30 of armature spindle 18 radially shaped portion 74 for example constitute or constitute by serration groove 76 by the annular knurl 75 of axial orientation.Armature spindle 18 has a diameter 80 at this described in the intercept 78 of the armature spindle 18 of shaped portion 74 radially having, and it is not more than the not diameter at all the other positions 84 of shaped portion 74 radially of armature spindle 18.Make armature spindle 18 continuous grindings (durchgangsschleifn) simultaneously, be used for to pass bearing 28 and be assembled to transmission device 14 the insides.Has the littler diameter 86 of the diameter 82 of a ratio on all the other axial positions 84 in order to produce the described hole 44 of interference fit having corresponding radially intercept 78 places of shaped portion 74.Relation at the diameter 80 that does not have the position 84 rotor axles 18 of shaped portion radially and the diameter 82 in hole 44 is a matched in clearance.Armature spindle 18 be need not on most length 92 that your writing pushes away via hole at full tilt.Only must apply corresponding assembly force, be used to be pressed into radially shaped portion 74 for last intercept 78.
If radially the material of shaped portion 74 is harder than the material of hole wall 94, then radially shaped portion 74 shovels go into to wall body 94 the insides and produce a form fit to connect.If radially shaped portion 74 is not that such hard place constitutes, then produce the interference fit that a power transmission connects.The armature spindle 18 that for example has shaped portion 74 is formed from steel, and the wall body 94 in meshing part 32 and hole 44 is formed from steel equally or is made by a kind of softer material, for example brass.
Therefore relatively rotate the connection transmitting torque by the anti-of shaped portion 74 radially in that driver element 10 is in service, and the axial force that is produced is delivered on the shell 16 by contact-making surface 48 and axially mounting face 60.
In a selectable embodiment, on the end 30 of armature spindle 18, radially shaped portion 74 is not set near end face 50.But making armature spindle 18 (at confined state) in the position 96 of the open end in hole 44 have radially shaped portion 73, it dots in Fig. 1.Embodiment just forms radially shaped portion 73 on armature spindle 18 after armature spindle passes bearing holder (housing, cover) 28 assemblings hereto.For example form radially shaped portion 73 by compacting or punching press at this, they have a diameter bigger than the diameter 80 at all the other positions of armature spindle.The described hole 44 of embodiment has a diameter 82 identical on its whole length hereto.When assembling meshing part 32, armature spindle 18 is slided on most length 92 with matched in clearance, just only on the last intercept 96 of radially outstanding shaped portion 73, must improve assembly force in order to constitute interference fit.
Have radially shaped portion 73,74 according to the described armature spindle 18 of another unshowned scheme, their form fit join the corresponding correspondingly-shaped the inside of the prior shaping in 44 wall bodies 94 of hole to with connecting.
Be noted that at the embodiment described in Fig. 1 and the description and can realize many combined methods each other.Especially can change shape, layout and the processing of shaped portion 73,74 radially and adapt to will be by torque transmitted.Contact-making surface 48 is not limited to illustrated embodiment with the practical structures of the axially mounting face 60 with corresponding corresponding surface 62 in addition.For example axially mounting face 60 can be made of the surface on plane, and it is bearing on the corresponding surface 62 of an arching of adjustment component 64 or shell 16.Sphere 58 and meshing part 32 are constituted integratedly, wherein its engaging tooth? (original text has problem).
Be preferred for adjusting movable part, especially seat component in the automobile according to electric drive unit 10 of the present invention, but be not limited to this application.
Claims (10)
1. one kind in particular for adjusting the electric drive unit (10) of the movable part in the automobile, it has the armature spindle (18) that is bearing in the shell (16), it passes through at least one end face (50) axially mounting on shell (16), and going up fixing independently meshing part (32) at armature spindle (18) is used for transmission of torque to drive disk assembly (38,40) on, it is characterized in that, described meshing part (32) has axial contact-making surface (48), and axially contact-making surface leans on the end face (50) of armature spindle (18).
2. electric drive unit as claimed in claim 1 (10) is characterized in that, described axial contact-making surface (48) is arranged on the bottom surface (46) in the hole (44) in the meshing part (32).
3. electric drive unit as claimed in claim 1 or 2 (10), it is characterized in that, described meshing part (32) has axial bearing-surface (60), by it armature spindle (18) is bearing on the shell (16), especially is bearing on the adjustment component (64) that is fixed in the shell (16).
4. as each described electric drive unit (10) in the above-mentioned claim, it is characterized in that described axially mounting face (60) has radius (59), and especially constitute by sphere (58).
5. as each described electric drive unit (10) in the above-mentioned claim, it is characterized in that the bottom surface of (44) (46) go up shaping through hole (52) in the hole, through hole especially holds the spheroid (56) with bearing-surface (60).
6. as each described electric drive unit (10) in the above-mentioned claim, it is characterized in that, described armature spindle (18) axially has radially shaped portion (74) in the intercept (78), especially annular knurl (75) or serration groove (76), its constitutes an anti-power transmission connection in relative rotation when meshing part (32) being inserted into the inside, hole (44) and/or form fit connects.
7. as each described electric drive unit (10) in the above-mentioned claim, it is characterized in that described hole (44) are in the axial position (78) of the radially shaped portion (74) of armature spindle (18), especially have than armature spindle (18) and do not have the radially littler internal diameter (86) in position (84) of shaped portion (84) on the end of bottom surface (46).
8. as each described electric drive unit (10) in the above-mentioned claim, it is characterized in that, described armature spindle (18) continuous grinding after radially shaped portion (74) is shaped, and the bearing holder (housing, cover) (28) that can pass in the shell (16) axially assembles.
9. as each described electric drive unit (10) in the above-mentioned claim, it is characterized in that, described armature spindle (18) has radially shaped portion (74 with being connected of meshing part (32), 73) position (78,96) is made of interference fit and the position of shaped portion (84) are made of matched in clearance not having radially.
10. as each described electric drive unit (10) in the above-mentioned claim, it is characterized in that described meshing part (32) has worm tooth portion (34), angular wheel engaging piece or straight-tooth or helical teeth, it and another drive disk assembly (40,38) mesh.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004007873 | 2004-02-17 | ||
| DE102004007873.4 | 2004-02-17 | ||
| DE102004012077 | 2004-03-12 | ||
| DE102004012077.3 | 2004-03-12 | ||
| PCT/EP2005/050233 WO2005081382A1 (en) | 2004-02-17 | 2005-01-20 | Gearing drive unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1922777A true CN1922777A (en) | 2007-02-28 |
| CN1922777B CN1922777B (en) | 2012-04-18 |
Family
ID=34813479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005800052664A Expired - Fee Related CN1922777B (en) | 2004-02-17 | 2005-01-20 | Electric drive unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1922777B (en) |
| DE (1) | DE102004024702A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896022A (en) * | 2015-06-29 | 2015-09-09 | 安徽机电职业技术学院 | Speed reduction box with large transmission ratio |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005057358B3 (en) * | 2005-12-01 | 2007-02-22 | Faurecia Autositze Gmbh & Co. Kg | Drive motor for vehicle seat, has two housing, one of which has internal thread and other has external thread whereby positive locking is provided at housing which automatically engages with turned threads, thus blocking turning movement |
| DE102006021242B4 (en) | 2006-04-28 | 2012-06-21 | Bühler Motor GmbH | electric motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781191A (en) * | 1953-02-12 | 1957-02-12 | Hupp Corp | Vehicle window regulator |
| US2987349A (en) * | 1959-07-30 | 1961-06-06 | Gilbert Co A C | Self aligning bearing |
| US4318573A (en) * | 1978-03-13 | 1982-03-09 | Eaton Stamping Company | Electric motor drive unit |
| JPH0649956Y2 (en) * | 1988-03-04 | 1994-12-14 | マブチモーター株式会社 | Small motor with worm reducer |
| DE29702525U1 (en) * | 1997-02-14 | 1998-06-10 | Robert Bosch Gmbh, 70469 Stuttgart | Device for adjusting components belonging to a motor vehicle |
-
2004
- 2004-05-19 DE DE102004024702A patent/DE102004024702A1/en not_active Withdrawn
-
2005
- 2005-01-20 CN CN2005800052664A patent/CN1922777B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896022A (en) * | 2015-06-29 | 2015-09-09 | 安徽机电职业技术学院 | Speed reduction box with large transmission ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004024702A1 (en) | 2005-09-01 |
| CN1922777B (en) | 2012-04-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20130120 |