CN103999334B - There is axial prestressed motor and the method for running such motor between rolling bearing and housing component - Google Patents
There is axial prestressed motor and the method for running such motor between rolling bearing and housing component Download PDFInfo
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- CN103999334B CN103999334B CN201280063513.6A CN201280063513A CN103999334B CN 103999334 B CN103999334 B CN 103999334B CN 201280063513 A CN201280063513 A CN 201280063513A CN 103999334 B CN103999334 B CN 103999334B
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- rolling bearing
- spring
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- 230000033001 locomotion Effects 0.000 claims description 16
- 238000007667 floating Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 4
- 229910000639 Spring steel Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- OJHZNMVJJKMFGX-BWCYBWMMSA-N (4r,4ar,7ar,12bs)-9-methoxy-3-methyl-1,2,4,4a,5,6,7a,13-octahydro-4,12-methanobenzofuro[3,2-e]isoquinoline-7-one;(2r,3r)-2,3-dihydroxybutanedioic acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O.C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC OJHZNMVJJKMFGX-BWCYBWMMSA-N 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 23
- 230000007246 mechanism Effects 0.000 description 14
- 230000003139 buffering effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 9
- 230000002441 reversible effect Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
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- 238000009434 installation Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 2
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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
- H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
- H02K2205/03—Machines characterised by thrust bearings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Support Of The Bearing (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The present invention relates to a kind of motors for driving the function element in motor vehicle（10）, especially geared drive unit（11）And it is a kind of for running such motor（10）Method, the motor（10）With armature spindle（12）, the armature spindle is axially（5）Extend and by means of rolling bearing（22、20）It is supported on shell in a manner of it can rotate（17）Housing component（16）In, wherein successively arranging at least two axial spring elements in the axial direction（32）, wherein the axial spring element（32）Effect about its power is axially（5）Arranged in series and it is supported on the housing component in the axial direction（16）Above and in the housing component（16）With the rolling bearing（20、22）Between apply axial prestressing force.
Description
Technical field
The present invention relates to according to type described in independent claims, a kind of function element for driving in motor vehicle
, there is axial prestressed motor and a kind of side for running such motor between housing component and rolling bearing
Method.
Background technology
A kind of motor is disclosed with 1 784 907 B1 of EP, rotor is supported in motor field frame for the motor
In.The outer ring of wherein rolling bearing is securely fixed in motor field frame, wherein the inner ring of the rolling bearing is with can
The mode of axial movement is supported on the armature spindle.Between the bearing inner race and the friction plate group of the rotor,
Arrange axial spring shim above the armature spindle, the spring shim by the rotor with armature spindle in the axial direction
Inner ring towards the rolling bearing clamps.In this embodiment, the axial spring element is directly anchored to described
In the friction plate group of rotor, it is possible thereby to always only in the friction plate group and the rolling bearing for being configured to floating bearing
Between apply the prestressing force.This embodiment is not suitable for applying between the shell and the rolling bearing described pre-
Stress.In addition, those skilled in the art does not obtain any prompt, he can how it is smaller it is available, be used for as described in
The structure space of axial spring element supports higher axial force.
Invention content
In contrast, the feature with independent claims, by the present invention motor and by the present invention use
The method of the motor as operation possesses following advantages：Pass through the spring elements of at least two arrangements concatenated in the axial direction
In the case of being formed in using smaller axial structure space can the motor shell and be arranged in the armature spindle
On rolling bearing between apply enough axial prestressing force.The concatenated arrangement of described at least two axial spring elements
The elastic force for causing each axial spring element, direction axially elasticity similar with electrical series circuit
It is total.The arrangement by the present invention in this way, not only can be to the axis between the outer ring and inner ring of rolling bearing
It is compensated to gap, and the axial prestressing force relative to the shell of the motor to armature spindle load enough.By
This such as can carry out enough bufferings in the motor reversible operation to the axial force for acting on the armature spindle suddenly.By
On the one hand this is avoided the impact noise of interference when driving device starts or changes direction of rotation, and on the other hand obviously carry
The service life of the cod of the high rotor.
By measure cited in the dependent claims, embodiment illustrated in the independent claim is generated
, advantageous expansion scheme and improvement project.Here, the present invention is particularly advantageously suitable for axial prestress application to structure
It makes as fixing bearing（Cod）Rolling bearing on.The inner ring of the rolling bearing is fixedly placed on the rotor herein
On axis, to prevent the relative motion between armature spindle inner ring.Such fixing bearing is suitable for bearing for the motor
Act as firmly in the axial direction, wherein the axial force can in the case where more or less being buffered by the outer ring come
It is transmitted on the shell.The rolling bearing such as can be structured as ball bearing or the bearing of journals, wherein the rolling element
（Sphere or straight pin）It is rolled between the inner ring and the outer ring.
If the position of the axial force of the spring element successively arranged in the axial direction（Wirklinie）Directly act on
In the region of the inner ring of the rolling bearing, that just prevents the shearing between the rolling bearing and the armature spindle.Its
Described in spring element can directly be resisted against in the axial direction on the inner ring, or only can also the inner ring with it is described
Backstop gasket is arranged between spring element.It, can be with by the way that the inner ring is securely fixed in this mode on the armature spindle
Between the inner ring and the outer ring, component tolerance and manufacturing tolerance caused by system are compensated, method is：Directly
It connects and loads enough prestressing force to the inner ring.In order to be compensated to such axial bearing clearance, it is described in the axial direction
Successively the spring element of arrangement is typically relative to the shell application in the range of 50-150N, preferably approximately 100N
Prestressing force.
In a kind of embodiment as an alternative, described successively the elastic force of the spring element of arrangement is made in the axial direction
With on the outer ring of the rolling bearing, wherein outer ring described herein at least can in certain boundary axially side
It is arranged in the shell to the mode of movement.By this embodiment, can be realized for described relative to the shell
The axial buffer of rotor（Axialdämpfung）, wherein can operatively axially on to being up to the axial direction to work of 1500N
Thus power significantly reduces the mechanical load of the bearing and rotor into row buffering.
Particularly advantageously, on the one hand arranged in series in the axial direction described in axial buffer in order to be carried out to the rotor
Spring element acts on the outer ring and at the same time the spring element of another elasticity acts on the inner ring, for in institute
The axial bearing clearance inside rolling bearing is stated to compensate.In a preferred embodiment, described to act on inner ring
Elasticity spring element be configured to it is described in the axial direction successively arrangement, act on spring element on the outer ring, collection
At component part.
If the spring element successively arranged in the axial direction is axially relative to the shell and is supported on described turn
On the end of sub- axis, then these axial elastic force just act on indirectly it is described be securely fixed in it is interior on armature spindle
Circle.It is possible thereby to the point for the centre for almost concentrating on the spring element that makes to rub caused by the rotation by the rotor
On, thus improve the efficiency of the motor.In order to improve the sliding between the spring element and the end of the armature spindle
The screw thread tail surface of performance, the armature spindle can match with the position of the spring element, for example can arrange plastics material
Material, for improving sliding effect.
It is preferred that the present invention is on a kind of motor, which is configured to transmission mechanism-driving unit, the transmission mechanism-
Driving unit such as drives the wiper in motor vehicle.Here, a worm screw is secured on the armature spindle, the worm screw and one
Worm gear collective effect.They form worm gearing together, which is to have component to be regulated
Driven shaft is provided.Due to the load of the worm gearing, larger axial force can be acted on by the worm screw
The armature spindle especially may constitute the larger axial direction to impact type when converting the direction of rotation of electronic driving device
Power.Such axial peakload can effectively be buffered with the spring assembly by the present invention.
Particularly advantageously, the rolling bearing can not be arranged in rotatably and relatively movably the snail
Between bar and the armature core of the rotor, because the axial force then to be worked by the worm screw exists as far as possible in the axial direction
It is buffered on the position of its position.It is described that successively the spring element of arrangement is located next in the worm screw in the axial direction
Axial direction near be resisted against on the rolling bearing, it is possible thereby to effectively to the axial force into row buffering, without making
The armature spindle is bent radially.
Described successively the spring element of arrangement can be structured as integrated, integrated component in the axial direction, or be configured to
Individual component, the individual component is optional to be fixedly connected to each other or in the feelings loosely to abut against each other in the axial direction
It is installed under condition in the shell.It is important in this that each axial spring element by its act on electrically
Series circuit analogously collective effect, wherein the axial spring element can be selected according to the axial force occurred
Each spring characteristic line.
In order to which the axial structure space to be maintained in alap level, by the spring element advantageously structure
It makes and is either configured to the bowl-shape spring spring for disk spring and is resisted against on its excircle or leans on radially to each other
It abuts against each other or is connected to each other in the axial direction on interior region.Two of which, three, four or more single bullets
Spring element can be coupled each other in the axial direction.
Each spring element advantageously has single flexible component, these components similar with circuit each other
It is arranged in parallel.It means that each flexible component provides with being distributed in the circumference range of the spring element
Each axial elastic force, the elastic force abreast works simultaneously and its axial force works in parallel with each other.It is described each
Flexible component is such as configured to spring contact pin, and the spring contact pin is by the region of the outside radially of the spring element
It is connected with inner region radially.Wherein such as it can construct two in a unique axial spring element
A, three, four or more flexible components.
In another embodiment, each spring element is equipped with circular spring face.It means that circumferentially
Direction does not construct each individual component, but each spring element only has there are one unique flexible component,
The component is equably constituted in the range of whole circumference.Such spring element is such as made up of disk spring,
The center of the disk spring such as constructs a hole, and the circular spring surface construction of the disk spring is slight
The structure of taper.
Each spring element can particularly advantageously be fabricated to stamping parts, and the stamping parts is preferably cut by metallic plate
It forms.Especially spring steel is suitable for this, wherein most preferably selecting the thickness of the metallic plate according to there is prestressing force to be applied
With elasticity and the special shaped structure of the flexible contact pin（Ausformung）.
For the axial buffer scheme the case where for specific design scheme, the not only priority cloth in the axial direction
The axial spring element set and each flexible contact pin described when necessary may be provided with different spring constants.Wherein
The spring constant can also change with the axial offset of the spring element due to its special design, so as to
Buffering and design not only for the axial gap of the rolling bearing are designed more personalizedly for the slow of the rotor
Punching.It, can be certainly such as when the spring element successively arranged in the axial direction is configured to a component uniquely integrated
By spring characteristic line of ground design in the range of the axial offset, method is can be accordingly along the spring element
The radial expansion of part designs its material thickness and shape.
In order to reduce axial structure space, here it is particularly advantageous that by each flexible component of the spring element
It is configured to around the spiral structure in its center so that the spring element executes torsion when there is the effect of axial power
Transhipment is dynamic.
In order to which the rotor to be reliably supported in the shell of the motor, as the rolling bearing by the present invention
Supplement arrange at least one other floating bearing, the floating bearing can make the armature spindle relative to the shell
Carry out axial relative motion.In other variant schemes, it can also arrange that third or other construction are floating axle
It holds or the bearing of spring bearing.It, can be with by the support for first rolling bearing, defined axial elasticity
Ensure for the reliable, radial and axial of the rotor in the combination with other floating bearing or spring bearing
Bearing, without there is the superfluous size design of supporting structure（Überbestimmung）.
If being respectively arranged two bullets arranged in series in the axial direction in the both sides of the rolling bearing in the axial direction
Spring element, then this way just has the following advantages：The axial force from both direction can be carried out in an identical manner
Buffering.This point is especially important such as reversible driving device, for the reversible driving device otherwise
Break the direction of rotation for turning the armature spindle and the axial force to work of thus constantly turning round.Therefore, in this embodiment
In, described successively the spring element of arrangement is preferably symmetrically constituted on the both sides of the rolling bearing in the axial direction so that edge
The axial buffer for opposite axial direction is identical.
In order to manufacture the motor, described successively the spring element of arrangement is advantageously first in terms of technology in the axial direction
It is first pre-mounted in the shell of the motor, wherein then then as the installation of the rotor makes described to be fixedly placed on
Rolling bearing on armature spindle is resisted against under prestress on the spring element.When the spring element is arranged in both sides,
The rolling bearing is preferably directly clamped between corresponding spring element when the rolling bearing is installed.
In other embodiments, the spring element successively arranged in the axial direction in the both sides of rolling bearing can be with
It is connected to each other by means of clip so that the groups of springs of the both sides is configured to component that clamp the form of holder, integrated.This
The structure of the clamping holder of sample can also be after rolling bearing of the mounting arrangements on the armature spindle with a process steps
It advantageously installs, compensates for the location tolerance to the armature spindle the and/or described rolling bearing.
By the way that for each successively design of the spring element of arrangement in the axial direction, a kind of spring characteristics may be implemented
Curve, the spring assembly has prodigious spring rigid when smaller axial force works for the spring characteristic line
Property so that the armature spindle only fine deviates in the axial direction very much.With the increase of axial force, then entire spring assembly
Spring stiffness reduce, therefrom after the armature spindle can deviate and may in the axial direction be resisted against in the shell further
Meet support（Anlauf）On.By the design for such spring characteristic line, the transmission mechanism of the motor can be in institute
It states in the effect of axial force, wider range and is run with best efficiency, because the armature spindle is in larger axial force
Axial offset is only carried out in range fiddling.Such trend of the spring characteristic line can by it is each not
The same spring element abutted in the axial direction, such as disk spring or bowl-type spring（Topffeder）Combination come it is real
It is existing.Another kind is for realizing the feasible program of this spring characteristic line, is so punched out a unique component, to
Each different spring assembly is combined into a kind of specific characteristic curve or by axial spring element concatenated in the axial direction
Part is integrally combined especially to be bent in stamping parts in a component-.Different spring stiffness can also be partially through not
With plank cross section or different material thickness generate.
It is described by the present invention, the method for running such motor has the following advantages：It can extremely efficient hinder
The only impact noise of the interference of the electronic driving unit.This point in longer time in reversible operation for being grasped
It is particularly important for vertical driving unit, such as wiper direct drive unit or tailstock windscreen-wiper drive.By right
It, can be using smaller in the rolling bearing the and/or described axial buffering of rotor, special design scheme
It can described in operation using best efficiency with minimum noise pollution under the premise of axial spatial position demand
The transmission mechanism of inverse formula driving device.Wherein such as when changing direction of rotation first in a manner of buffering in the axis of rolling
It holds internal axial gap to compensate, and increased then to the spring element load arranged in series in the axial direction
Axial force, and thus armature shaft is not made significantly to deviate in the axial direction.Only more than it is normal, have and normally work
Axial force working range when, the armature spindle is just executed by the axial movement buffered, the axial force for bearing to improve.
In order not to the mechanical stability that makes the rolling bearing, over-burden, advantageously on the housing in two axial directions
The upwardly shaped backstop in side, the armature spindle is resisted against the backstop in the axial direction when being worked with the degree improved in axial force
On.Thus these higher axial forces are directly delivered to by the armature shaft on the shell, and do not had in this case
Extraly in the axial direction to the rolling bearing loading.
In order to obtain the especially same and uniform running noises of the reversible driving device, the armature spindle exists
It is executed when loading axial force along a first direction and the identical, mirror symmetry when loading axial force along opposite axial direction
Motion process.
Description of the drawings
Be shown in the accompanying drawings by the device of the invention and in the present inventive method, different embodiment, and under
It is explained in detail in the description in face.Attached drawing is shown：
Fig. 1 and 2 is by the present invention, with following worm gearing, motor two different embodiment party
Formula；
Fig. 3 and Fig. 5 is the other two kinds interception parts by the embodiment of the present invention；
Fig. 4 and Fig. 6 be two it is different it is single it is axial, for the bullet in one of embodiment used in the motor
Spring element；
Fig. 7 is each spring element, on the rolling bearing of another embodiment, schematical deployment scenarios；
Fig. 8 is armature shaft, according to the curve of the offset carried out in the present inventive method；
Fig. 9 is another embodiment by the armature spindle buffering of the present invention；
The spring element that Figure 10 is successively arranged as can such as use in fig.9, in the axial direction；
Figure 11 is another embodiment by transmission mechanism-driving unit of the present invention；And
Figure 12 and Figure 13 is to be arranged in the variant of the detailed view of the spring element on the rolling bearing in both sides.
Specific implementation mode
The motor 10 for having and being arranged in subsequent transmission mechanism 12 is shown in FIG. 1, the motor is such as configured to electricity
Dynamic driving unit 11.Such transmission mechanism-driving unit 11 such as can be used for adjust motor vehicle in movable component,
Such as wiper, glass for vehicle window, sunroof or seat component.There is the motor 10 armature spindle 12, the armature spindle to be propped up
It holds in the housing component 16 of the shell 17 of the transmission mechanism-driving unit 11.It is schematically shown on the armature spindle 12
Armature core 24, the armature core are such as driven by the magnet 25 that is arranged in the shell 17 in an electromagnetic manner.
Depict the case where motor 10 is configured to motor 9 in further detail in fig. 11.It is connect in the bearing of the shell 17
It receives and arranges rolling bearing 20 in portion 18, which is configured to ball bearing 22 in the described embodiment.Here, in inner ring 28
Rolling element 30 is arranged between outer ring 26, the rolling element is configured to sphere 31 for the ball bearing 22.In described
Circle 28 is securely fixed on the armature spindle 12, to prevent the inner ring 28 from being reversed relative to the armature spindle 12
Or it is mobile.It is this can not relatively rotate and it is not relatively-movable connection such as can be by the armature spindle 12 and institute
The material for stating the press-fit and/or plasticity between inner ring 28 deforms to realize.In the described embodiment, the outer ring 26 is by can not
It relatively rotates and can not relatively movably be fixed in the housing component 16.Thus the rolling bearing 20 is configured to so-called
Fixing bearing 21, the power which can act on the armature spindle 12 by axially 5 are transmitted to the shell
On part 16.Thus it has the function of journal bearing and cod.In addition, arranging transmission mechanism on the armature spindle 12
Element 40, the train element are meshed with the corresponding transmission gear 42 of the transmission mechanism 14.Here, such as described
Train element 40 is configured to worm screw 41, which can not be relatively rotated and can not relatively movably be fixed on described turn
On sub- axis 12.The worm screw 41 drives the transmission gear 42 for being configured to worm gear 43, pinion ratio motor 9 as will be described
Driving moment be transmitted to by output element 44 not shown here on component 45 to be regulated.This point is such as being schemed
It is shown by means of windscreen-wiper drive in 11, the windscreen-wiper drive is scraped to adjust as there is component 45 to be regulated
Hydrophone control stick 46.If driving the motor 10 along different direction of rotation, axial force 6 just passes through the worm screw
41 act on the armature spindle 12, and the direction of the armature spindle 12 is constantly reversed.The rolling bearing 20 is due to system
Always there is certain axial gap between the inner ring 28 and the outer ring 26, the axial gap is in the driver
Structure-driving unit 11 carries out the switching noise caused interference with when so-called reversible operation.Therefore, in the housing component 16 and institute
It states and arranges at least two axially 5 spring elements 32 to work, the spring element edge between rolling bearing 20
Axial direction 5 to abut against each other.It is described in the axial direction successively arrangement spring element 32 cause prestressing force 34, the prestressing force along
Axial direction 5 acts on the inner ring 28 in the axial direction by the armature spindle 12.Because the inner ring 28 is by immovably
It is arranged on the armature spindle 12, so thus constantly between the inner ring 28 of the rolling bearing 20 and the housing component 16
Prestressing force 34 is loaded, the spring element 32 is supported on the housing component 16.Thus the axial direction of the rolling bearing 20 is eliminated
Gap, it is possible thereby to prevent the switching noise of interference.If acting on the axial direction of the armature spindle 12 from the transmission mechanism 14
Power 6 is more than the prestressing force 34 of the spring element 32 successively arranged in the axial direction, then such as when reversing in the rolling
To the axial movement of the armature spindle 12 into row buffering within the boundary of the axial gap of bearing 20, thus equally in reversible fortune
The impact noise is reduced when row.The spring element 32 is schematically shown in Fig. 1, and the spring element 32 is aobvious
Arrangement concatenated in the axial direction is shown.Meanwhile each spring element 32 has multiple flexible components 60, the component
It is analogously connected in parallel to each other with circuit and arranges and correspondingly axial prestressing force 34 is applied on the rolling bearing 20.Institute
It states the spring element 32 successively arranged in the axial direction and is such as configured to bowl-shape or disk like, so as to generate higher, effect
In the prestressing force 34 of the structure space smaller in the axial direction inside the housing component 16.Embodiment in Fig. 1 only has
One unique rolling bearing 20, the rolling bearing be preferably placed in the armature core 24 and the train element 40,
Especially between worm screw 41.In order to further support the armature spindle 12 radially, another journal bearing 50 is arranged, the diameter
Sliding bearing 51 is such as configured to bearing.Another journal bearing 50 such as the armature core 24 and the axis of rolling
It holds and is arranged on the end 53 of the armature spindle 12 on 20 opposed sides.In order to further support the armature spindle and its transmission
The end 52 of mechanism side, constructs third journal bearing 54, which is supported radially by sliding shaft sleeve 55
The armature spindle 12.The journal bearing 50 and 54 allows the armature spindle 12 axially 5 relative to the shell
17 are moved, and are therefore also referred to as floating bearing.For example the journal bearing 50,54 is in a manner of it can move axially
It is arranged on the armature spindle 12, and is securely fixed in the housing component 16 on the circumference of the outside of the armature spindle
In.
Fig. 2 shows a kind of variant scheme of transmission mechanism-driving unit 11 according to Fig. 1, institute in this variant
It states rolling bearing 20 to be arranged on the end 53 of the armature spindle 12, wherein the prestressing force 34 is applied to it.The rolling
The inner ring 28 of bearing 20 can not relatively rotate and can not relatively movably be connected with the armature spindle 12 again, wherein described outer
Circle 26 is securely fixed in the housing component 16.Thus there is the structure on the axial end 53 of the armature spindle 12
Make the rolling bearing 20 for fixing bearing, axial bearing clearance.Therefore, in such an embodiment, the prestressing force 34 is made
With on the inner ring 28, rather than act on the armature spindle 12.A kind of specific embodiment about this respect exists
It is shown in Figures 5 and 6.In the described embodiment, second axis of rolling is arranged between the armature core 24 and the worm screw 41
23 are held, but compared with the embodiment according to Fig. 1, second rolling bearing 23 is preferably configured as floating bearing herein.
Thus the superfluous scale Design of the axial supporting force of the armature spindle 12 is prevented（Überbestimmung）.For this purpose, such as institute
Outer ring 26 is stated to be arranged in the bearing receptacle 18 in the mode that can be moved axially.As an alternative, the inner ring 28
Also it is arranged in a manner of it can move axially on the armature spindle 12.The end 52 of the transmission mechanism side of the armature spindle 12 exists
It is supported by spring bearing 56 in this embodiment, should prevent the armature spindle 12 from being shifted from the transmission gear 42
Out.It, just will be radial when transmitting driving moment if the transmission mechanism 14 is configured to worm gearing 15
Power is applied on the end 52 of the transmission mechanism side, and the radial load is to the tooth between the worm screw 41 and the worm gear 43
Portion's engagement has adverse effect on.By it is described prevent according to the spring bearing 56 of Fig. 1 or third journal bearing 54 it is described
This radial displacement of armature spindle 12.It is reduced by the prestressing force 34 of the spring element 32 to abut against each other in the axial direction
The axial movement of the armature spindle 12 ,-and the axial movement of the worm screw 41 is thus also reduced, thus equally in worm screw
Best teeth portion is obtained between 41 and worm gear 43 to engage.
The housing component 16 is such as configured to pole tank 19 in the embodiment according to Fig. 1 and Fig. 2（Poltopf）, the electricity
The armature core 24 of motivation 9 is supported in the pole tank 19.Protrusion 29 of the pole tank 19 described herein such as with an axial direction,
Journal bearing 20,50 is arranged in the protrusion 29.It is described herein that successively the spring element 32 of arrangement is equally arranged in the axial direction
The inside of the pole tank 19, axial protrusion 29, wherein here by the spring element 32, by the present invention moulding
The axial structure length 27 of the axial protrusion 29 should be reduced to bottom line with arrangement.
Show that a kind of specific embodiment of the spring element 32, the spring element 32 compare in figs. 3 and 4
It such as can be used in the spring element 32 schematically shown in Fig. 1.Three single spring elements are such as shown in figure 3
Part 32, these spring elements correspondingly directly abut against each other in the axial direction.Here, each spring element 32 has external circle
In week 58, first and second spring element 32 abuts against each other in the axial direction on the circumference 58 of the outside.In addition, the bullet
Spring element 32 has region 59 inner radially, which passes through single flexible component in such an embodiment
60 are connected with the circumference 58 of the outside.This point can be come as seen from Figure 4, in Fig. 4 the flexible component 60
It is configured to spring contact pin 61, the spring contact pin helically extends to the outside from the radially inner region 59
Circumference 58.As can as seen from Figure 3 as, the spring element 32 is respectively configured to disk like or subtle taper.
This, described second and third spring element 32 abut against each other in the axial direction on inner region 59 in the radial direction thereof respectively.Pass through
These spring elements 32 arranged in series with each other in the axial direction, in the housing component 16 and rolling bearing 20 herein shown
Between generate prestressing force 34, wherein the prestressing force 34 acts on the inner ring 28 of the rolling bearing 20 by the armature spindle 12
（Such as according to Fig. 1）.The spring element 32 arranged in series is resisted against on the radially inner region 59 herein
On the armature spindle 12, wherein arranging so-called meet to mushroom on the end of the armature spindle 53 to improve sliding capability
Shape part（Anlaufpilz）62.This is met such as is made of plastics to mushroom shape part 62, it is significantly reduced in the armature spindle
Friction between 12 and the spring element 32 such as made of metal.The spring element 32 shown in figures 3 and 4 can be with structure
It makes as the stamping parts 63 single metal, such as made of spring steel.Each spring element 32 can be loose in assembly
It is inserted into dynamicly in the housing component 16, wherein these spring elements described in the guide sleeve 58- that schematically shows such as by leading
Set can also be integrated directly into the housing component 16-be guided when necessary.In this embodiment, each bullet
Spring element 32 correspondingly abuts directly against on the housing component 16 and the armature spindle 12, and directly abuts to each other.But
It, can also be correspondingly in the spring element 32 and/or the housing component 16 in a kind of embodiment as an alternative
Other thrust washers or connecting element are arranged between the armature spindle 12.In this case, each spring element
Part 32 can be axially direction 5 be connected to each other, only have to installation one only to replace each spring element 32
The one groups of springs 64- groups of springs is by successively the spring element 32 of arrangement is formed in the axial direction.
Show in fig. 5 and fig. in the axial direction successively arrangement, as can such as make in the embodiment according to Fig. 2
Another variant scheme of spring element 32 as.Here, the rolling bearing 20 is arranged in the armature spindle 12
On end 53 so that the spring element 32 directly can load prestressing force 34 to the inner ring 28.In this embodiment,
The region 59 inner radially of the spring element 32 has a circular gap 65, which such as at least corresponds to institute
State the diameter 66 of armature spindle 12.The inner region 59 radially is configured to annulus 67 herein, and the annulus is herein in axis
It is supported on upwards on the inner ring 28 of the rolling bearing 20.The spring element 32 is configured to disk like or bowl-shape and in institute again
It states and abuts against each other on external circumference 58.As shown in fig. 6, the circumference 58 of the outside is further through flexible group
Part 60 is connected with the inner region 59 radially.Three spring contact pin 61 are respectively illustrated in figs. 4 and 6, it is described
Spring contact pin is component be arranged parallel to each other, flexible 60 about axial spring active configuration.But it is a kind of not
In the variant scheme shown, the spring element 32 of Fig. 3 and 5 can also have four either five or more root spring contact pin
61, or as such as also in figures 9 and 10 illustrated by about its circumferencial direction be configured to the disk spring equably constituted
Gasket.When the spring element 32 according to Fig. 4 and 6 is by axial load, the inner region 59 radially can be opposite
Circumference 58 in the outside is reversed, and spring travel is thus at least partly converted into torsion from pure axial movement
Movement.By this embodiment of the spring element 32 successively arranging in the axial direction, disk like, the shell can be reduced
The axial structure space of body part 16, wherein two spring elements 32 are arranged in series in the axial direction in Figure 5, but in conduct
Three, four or more spring elements 32 can also be successively arranged in the embodiment of alternative solution in the axial direction.Again may be used
Choosing can loosely install each spring element 32 relative to each other, or connect into a groups of springs 64 in advance.
It is optional can be arranged on the radially inner region 59 or on the circumference 58 of the outside groups of springs 64,
Contact surface on the housing component 16（It is equivalent to the combination of Fig. 3 to Fig. 6）.
By the axial prestressing force between the housing component 16 and the rolling bearing 20, make the inner ring 28 one
Side is resisted against in the axial direction on the outer ring 26, and is compressed with predetermined pressing force 34, to eliminate the axial direction of loosening
Bearing clearance.As an alternative, the spring element 32 can be by nonmetallic material, such as be made of plastics.By institute
When stating spring element 32 and being arranged in the housing component 16, these spring elements can be fixed on the shell about rotary motion
In body 17, or it can only be arranged in a manner of being rotated together with the armature spindle 12.In another embodiment, exist
The spring element 32 successively arranged in the axial direction is arranged on two ends 52,53 of the armature spindle 12, wherein the spring
The spring characteristic line of element can mutually be coordinated each other.In a preferred embodiment, the cloth in series in the axial direction
The spring element 32 set be for each spring element 32 it is identical, wherein it is each it is flexible, be arranged parallel to each other
Component 60 spring constant correspondingly spring characteristic line having the same.
Fig. 7 shows another embodiment, and armature spindle 12 is supported on shell by means of rolling bearing 20 in this embodiment
In 17.The inner ring 28 can not be relatively rotated and can not be relatively movably fixed on the armature spindle 12, the outer ring
26 are arranged in a manner of it can be moved along the axial direction 5 in certain boundary in the housing component 16.Institute
It states and arranges at least two spring elements successively arranged in the axial direction on two opposed sides 70,71 of rolling bearing 20
32, on the one hand the spring element is supported on the outer ring 26 and is on the other hand supported on the housing component 16 in the axial direction
On.If present axial force 6 such as acts on the armature spindle 12, the axis of rolling by the train element 40
20 are held just axially 5 to be buffered in the axial direction by the spring element 32 arranged in series in the axial direction.
This, such spring characteristic line of the design spring element 32 successively arranged in the axial direction so that the spring for compared with
For small axial force 6 it is comparatively rigid and thus almost without make the rolling bearing 20 together with armature spindle 12 deviate.Only
When axial force 6 in action acutely increases, the spring stiffness just weakens, and thus allows that axially x's is larger
Offset.For higher axial force 6, the armature spindle 12 so carry out it is this by the offset buffered, until described turn
Sub- axis 12 is resisted against with its end 52,53 in axial stop 72,73.The spring element being arranged against each other in the axial direction
32 arrange on two sides 70,71 opposite each otherly in the described embodiment, thus when axial force 6 works according to
Two kinds of opposite axial directions 5（When reversing the driving direction of the motor 10）Generate the armature spindle 12, axially
The offset x in direction 5, preferably symmetrical curve.
This curve of the offset X is shown about the axial force F to work in fig. 8.If such as positive
Power F act on the armature spindle 12（Such as in the figure 7 to the right）, then making the armature spindle 12 described along being parallel to first
The offset direction X of axial direction 5 is deviated, until eliminating the axial gap between the inner ring 28 and the outer ring 26（
F1Place）.If further increasing the axial force F now, the armature spindle 12 is just due to the priority cloth in the axial direction
The spring element 32 set, spring characteristic line special design scheme according to the invention and do not obtain actually into
The offset X of one step.Only from F2Rise when applying considerably higher axial force F, the spring stiffness just becomes smaller, thus make described in
Armature spindle 12 overcomes the elastic force to be deviated with increasing degree together with the outer ring 28.Reaching maximum power FmaxWhen, institute
It states armature spindle 12 to be resisted against in the axial stop 72 with its end 52, thus when further increasing the power F by the rolling
The mechanical load of dynamic bearing 20 is restricted to Fmax, and the higher power F is directly transmitted to the axial direction by the armature spindle 12
In backstop 72.If 5 loading axial force-F to the armature spindle 12 in the opposite direction（In the figure 7 to the left）, then in-F1Place
Axial clearance compensation is carried out first again.When further increasing the axial force-F in the opposite direction, acted as in higher power
Used time is ramping up from-F2 until in-F in the curve of the offset XmaxLocate the armature spindle 12 end 53 reach it is described
Before at axial stop 73, the curve of the offset X is again almost horizontal for smaller power F.It such as can be from Fig. 8
As finding out, in such an embodiment, when opposite axial force+F and-F work, the curve of the offset X is right each other
Claim.
Supplement as the groups of springs 64 being arranged on the both sides 70,71 of the rolling bearing 20, or to institute
It states axial bearing clearance and arranges additional axle spring 74,75 on the inner ring 28 into row buffering, wherein the axial direction
Bearing clearance range in fig. 8 in+F1With-F1Between show.These axle springs 74,75 can be it is described in the axial direction
Successively be arranged in the component part of the one of spring element 32 on outer ring 26, or can as such as in fig. 13 shown by
It is configured to individual axle spring like that.
Be shown in FIG. 9 it is according to key diagram in the figure 7, in the axial direction successively arrangement spring element 32,
A kind of specific embodiment（Without axle spring 74,75）.Here, each spring element 32 in the implementation according to Fig. 5
It is similar in mode to be equipped with external circumference 58 and inner annulus 67.The spring element 32 is configured to disk spring herein,
The disk spring constitutes a uniform annulus 67 in the range of whole circumference, for that can bear higher axial force 6.
Each spring element 32 on the circumference 58 of the outside or on the radially inner region 59 in the axial direction
It abuts, thus in the described embodiment can four spring elements 32 preferably arranged in series in the axial direction.But as
Alternative solution can also successively arrange two, three or more than four spring elements 32 in the axial direction.The housing component 16
Represent integrated guide sleeve 57 herein, in the guide sleeve the armature spindle 12 axially 6 into line displacement X when guide
The spring element 32.It is preferred that spring element 32 abuts directly against the outer ring of the rolling bearing 20 with its external circumference 58
On 26.Another spring 32 arranged in series is resisted against with its external circumference 58 on the housing component 16 in the axial direction.Institute
The prestressing force 34 for stating the groups of springs 64 being arranged symmetrically about the rolling bearing 20 on both sides 70,71 can be by axial direction
Retaining element 78 is adjusted, and the retaining element 78 is such as configured to clamping ring 79, which is then fitted to circular slot 80
In.
Multiple disk springs are as successively the spring element 32 of arrangement is merged into a spring in the axial direction in Fig. 10
Group 64.Each spring element 32 forms a circular spring face 82, and it is in funnel which, which faces center position slightly,
Shape.Nonlinear spring characteristic line based on Fig. 8 is accomplished by the following way：For the spring of these disk like
The spring face 82 of the annular shape is constituted relatively stiffly, and when being subjected to axial load at the beginning almost without change
Shape, until in the threshold value for reaching certain power（F2）Circumference 58 outside Shi Suoshu is turned over relative to the inner annulus 67 suddenly
Turn, thus a kind of spring travel is provided, the armature spindle 12 is according to the spring travel into line displacement（X）.Pass through cloth in series
The mode for setting multiple such disk springs 32, can enhance this effect, in the range of larger power（F1To F2）It is several
Deviate the armature spindle 12, and in the threshold value more than one of power（F2）When provide and a kind of being used for the offset
The adjusting stroke of X.The spring element 32 successively arranged in the axial direction described in construction on the both sides of the rolling bearing 20 70,71
When, it is also important that, the spring element is constructed in a manner of saving locational space as far as possible in the axial direction according to the present invention
32 " series circuit ".As identical spring element 32, axially 5 schemes to line up alternative solution,
It can the different spring element 32 with different spring characteristic lines arranged in series in the axial direction.
Embodiment is enlargedly shown in FIG. 12 than as shown in fig. 11 and a kind of variant scheme as a kind of.
Here, spring shim 84 is resisted against in the axial direction on the shell 17 on the both sides of the rolling bearing 20 70,71.Such as
These spring shims 84 are installed radially from the side of the armature spindle 12, but in a kind of being not shown as an alternative
Embodiment in these spring shims 84 can also annularly be shifted onto on the armature spindle 12.It is configured to bullet as the two
The supplement of the spring element 32 of spring gasket 84, so arranges semielliptic spring 86 so that its two 87 one side of support arm are in axial direction
On be resisted against on the spring shim 84 and on the other hand be supported on the rolling bearing 20 on both sides 70,71.Thus
The support arm 87 of the semielliptic spring 86 is arranged in series in the axial direction with a corresponding spring shim 84 respectively.It is preferred that these springs
Group 64 is mutually symmetrical on the both sides of the rolling bearing 20 70,71.The semielliptic spring 86 herein can be described turn in installation
Advantageously diametrically opposed after sub- axis 12 to be installed in the armature spindle 12, the rear rolling bearing 20 is two therefrom
Side is clamped at prestressing force 34 that can be previously given in the shell 17.According to diagram in figures 7 and 8, pass through institute
It states the specific shaped structure of spring shim 84 and the semielliptic spring 86 and realizes the offset X when axial force 6 works
A kind of curve, the armature shaft 12 is first almost without into line displacement for the axial force, the thus worm screw 41
It is most preferably fitted in each other in normal operation with the worm gear 43 and this point obtains during entire service life
Guarantee is arrived.Only when there is higher power, for example when there is unexpected load, 12 ability of the armature spindle is being buffered
In the case of into line displacement, for preventing transmission mechanism teeth portion to be damaged.
The geared drive unit 11 for wiper is such as shown in fig. 11, and wherein driving moment is by worm gear 43
It is transmitted to by output element 44 on the wiper stand 46 be used as and have component 45 to be regulated.On the wiper stand 46
Secure unshowned wiper, the wiper the motor 9 reversible driving operation on glass for vehicle window back and forth
Movement.The rolling bearing 20 is configured to the fixing bearing between the armature core 24 and the train element 4 again,
Sliding bearing 51 is wherein arranged on the end of the armature spindle 12 53 according to Fig. 1.In order to support radial load, in the rotor
Spring bearing 56 is constructed on the end 52 of the transmission mechanism side of axis 12.The motor 9 is commutated by current-collector 88, is passed through
Carbon brush holder 89 is powered to the current-collector 88.The armature core 24 of the motor 10 is arranged in pole tank 19, the pole tank with
Transmission mechanism shell 90 is connected, and the electronic device 91 has also been received in the transmission mechanism shell 90.
As can be seen that the inner ring 28 can not be relatively movably fixed on described turn in the embodiment according to Figure 12
On sub- axis 12.This point is in such an embodiment by means of the deformation of the material of plasticity, such as two in 20 liang of the rolling bearing
The rolling groove of side（Rolliernuten）To realize.The support arm 87 of the semielliptic spring 86 is in the described embodiment in its medial surface
It is abutted directly against on 85 on the outer ring 26.The free end 92 of the support arm 87 is curved from the rolling bearing 20 in both sides
Song comes and is resisted against in the axial direction on two spring shims 84.The spring shim 84 is the structure of arch so shaped,
So that the supporting-point 93 of the axially out free end of the spring shim 84 92 is towards the branch on the shell 17
Bearing surface is bent.In such a way that the semielliptic spring 86 is installed radially, the pre- of axial direction is answered by the spring shim 84
Power 34 is applied on the rolling bearing 20.The specific curve of the offset X is then according to the axial direction to work according to Fig. 8
Power F is designed by the semielliptic spring 86 together with the specific moulding of its support arm 87 and the design of the spring shim 84.
Figure 13 shows another embodiment, in this embodiment spring element 32 arranged in series in the axial direction
It is arranged on the both sides 70,71 of the rolling bearing 20.It is described herein that successively the spring element 32 of forming collects respectively in the axial direction
Integrated spring member 94 is configured at ground, which can be respectively in the axial direction in the both sides of the rolling bearing 20
70, it is installed radial to the armature spindle 12 on 71.The spring member 94 integrated has the first spring element 32 herein, this
One spring element is supported on axial contact pin 95 on the shell 17 in the axial direction.Another spring element 32 is configured to along diameter
To the material tapered portion 96 of spring member 94 that extends of direction, which is axially relative to described axial connect
Piece 95 is arranged in series.It is described herein as the first spring element 32 with higher spring stiffness, axial contact pin 95
It is combined with the material tapered portion 96 as the second spring element 32 with smaller spring stiffness, it thus again can be real
A kind of existing nonlinear characteristic curve.The integrated spring member 94 is supported on lug 97 on the outer ring 28, is thus existed
When higher axial force 6 works, the outer ring 26 can be in the case where being buffered in the inside of the shell 17 axial direction
It moves on ground.The spring member 94 integrated, contact surface on the shell 17 herein can be by service condition differently structures
At to which the spring stiffness of integrated spring member 94 can also be adjusted by the expansion of the contact surface（Examination referring to Fig.1 3
Left and right side difference）.In order to realize the axial bearing clearance compensation, as the axle spring 74,75 according to Fig. 7
Spring coupling plate 98 is constructed, the spring coupling plate is resisted against in the axial direction on the inner ring 28.In this embodiment,
Not only the axial gap is compensated by integrated spring member 94, but also also by the outer ring 26 by slow
The offset X of punching traps very high axial power peak.It is described two to integrate in a kind of embodiment as an alternative
Spring member 94 component being integrated also is constructed together with clip on the both sides of the rolling bearing 20 70,71, the component
It can install radially in a simple manner.
Illustrate, each feature can be generated to each other about embodiment shown in the accompanying drawings and in the description
Diversified combination feasible program.Therefore, for example the cloth of the rolling bearing 20 can be changed in various embodiments
Situation is set, the rolling bearing is by means of successively the spring element 32 of arrangement is supported in the axial direction in the axial direction.Such as it can
The rolling bearing 20 to be arranged in on the end 52,53 of the armature shaft 12 or is arranged in the armature core 24 and institute
It states between train element 40.It is also possible to change the combination with other bearings, the others bearing is such as configured to
Other rolling bearings 53 are configured to sliding bearing 51 or are configured to spring bearing 56.In order to the axial bearing clearance
It compensates, typically realizes that 100N is arrived by the design scheme of the spring element 32 arranged in series in the axial direction
The elastic force of 150N, in order to generated when higher axial power peak works the outer ring 26, in shell 17 by slow
The spring element 32 successively arranged in the axial direction is typically designed for the up to elastic force of 1500N by the offset of punching.It is each
The different embodiments of spring element 32 can in order not to embodiment replace, wherein as each spring element 32
Specific design parameter fatefully determines required elastic force and available structure space.It is preferred that a single bullet
The axial structure length of spring element is 0.5 to 1.5mm.The present invention is suitable in a particular manner for the activity in motor vehicle
Component adjusting, wherein can be with upside-down motion direction for the movable component（Wiper, lifting glass for vehicle window
Device, sunroof, seat）, but the present invention is not limited to use in a motor vehicle.
Claims (23)
1. motor（10）, there is armature spindle（12）, the armature spindle is axially（5）Extend and by means of rolling bearing
（22、20）It is supported on shell in a manner of it can rotate（17）Housing component（16）In, which is characterized in that priority cloth in the axial direction
At least two axial spring elements are set（32）, wherein the axial spring element（32）Effect about its power is along axis
To direction（5）Arranged in series and it is supported on the housing component in the axial direction（16）Above and in the housing component（16）With it is described
Rolling bearing（20、22）Between apply axial prestressing force,
The spring element that wherein at least two is successively arranged in the axial direction（32）In the rolling bearing（22、20）Inner ring（28）
With the rolling bearing（22、20）Outer ring（26）Between cause axial prestressing force, the prestressing force is in the motor（10）'s
The rolling bearing is eliminated in non-loaded state（20、22）Bearing clearance and component tolerance,
The spring element that wherein at least two is successively arranged in the axial direction（32）It is respectively provided with single flexible component（60）,
The component about its power effect axially（5）It is arranged parallel to each other and is configured to flexible contact pin
（61）, the contact pin is by the spring element（32）Excircle（58）With the spring element（32）It is inner radially
Region（59）It connects,
The spring element that wherein at least two is successively arranged in the axial direction（32）Combination about the axial force（F）With offset
（X）Curve, the curve is in smaller axial force（F）It is flatly stretched very much when working, and in higher power（F）It acts as
Rise to used time hypergeometric example,
The wherein described spring element is configured to for smaller axial force（6）For it is comparatively rigid and thus almost without making
State rolling bearing（20）Together with armature spindle（12）Offset, wherein axial force only in action（6）When acutely increasing, the bullet
Spring rigidly just weakens, and thus allows axially（5）Larger offset.
2. motor as described in claim 1（10）, which is characterized in that the rolling bearing（20、22）With inner ring（28）With
Outer ring（26）, wherein the inner ring（28）It can not be relatively rotated and can not relatively movably be fixed on the armature spindle（12）
On.
3. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）By axial force（F）It is applied to the rolling bearing for being configured to cod（22、20）Inner ring（28）On,
And the spring element（32）It is supported directly on the inner ring in the axial direction（28）On.
4. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）By axial force（F）It is applied to the outer ring（26）On, wherein the rolling bearing（22、20）Outer ring
（26）It is arranged in the housing component in a manner of it can be moved in the case of being buffered in the axial direction（16）In.
5. by the motor described in any one of claims 1 or 2（10）, which is characterized in that on the one hand at least two in the axial direction
The successively spring element of arrangement（32）By axial force（F）It is applied to the outer ring（26）On, and at the same time at least one other
Spring element（74、75）By axial force（F）It is applied to the inner ring（28）On.
6. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）It is resisted against the armature spindle in the axial direction（12）Axial end（52、53）On.
7. by the motor described in any one of claims 1 or 2（10）, which is characterized in that in the armature spindle（12）Upper arrangement
Armature core（24）And arrange worm screw（41）, the worm screw（41）With worm gearing（15）Worm gear（43）
It is meshed, and the rolling bearing（20、22）It is arranged in the armature core in the axial direction（24）With the worm screw（41）It
Between.
8. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）It is integrated into each other, is either directly connected to each other in the axial direction or in the axial direction with straight
The mode that abuts against each other is connect to constitute.
9. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）It is configured to disk like or bowl-shape, and is respectively provided with excircle（58）, described on the excircle
Spring element（32）In order to form groups of springs（64）And it is connected to each other or abuts against each other in the axial direction in the axial direction.
10. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）It is correspondingly equably constituted about its circumferencial direction and forms circular spring face（67）.
11. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）It is configured to the stamping parts made of spring steel（63）.
12. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）Spring characteristic line having the same or different.
13. by the motor described in any one of claims 1 or 2（10）, which is characterized in that each flexible component（60、
61）Helically around region inner radially（59）It arranges, and in the spring element（32）It is subjected to axial direction
Load when described in inner region radially（59）It can be relative to the excircle（58）Rotation.
14. by the motor described in any one of claims 1 or 2（10）, which is characterized in that as being configured to the of cod
One rolling bearing（22、20）Supplement, in the armature spindle（12）On arrange at least one other construction be floating bearing
Rolling bearing（22、20）Or sliding bearing（50、51）.
15. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）It is arranged in the rolling bearing（20、22）Two axial directions side（70、71）On.
16. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）It is pre-mounted in the housing component（16）In, and the then armature spindle（12）Rolling bearing
（20、22）It is placed into or is pressed into the housing component（16）In.
17. by the motor described in any one of claims 1 or 2（10）, which is characterized in that at least two priority cloth in the axial direction
The spring element set（32）In the rolling bearing（20、22）Two axial directions side（70、71）On be configured to buckle-like
Clamp holder（86）, the clamping holder is axially（5）Surround the rolling bearing（20、22）.
18. motor as described in claim 1（10）, which is characterized in that the motor（10）It is for driving in motor vehicle
The geared drive unit of function element（11）.
19. by the motor described in preceding claims 16（10）, which is characterized in that the rolling bearing（20、22）In the axial direction
It is clamped at corresponding at least two spring elements successively arranged in the axial direction（32）Between.
20. for running by any one of the preceding claims motor（10）Method, the method have following methods
Step：
In axial force（F）Act on the armature spindle（12）When by means of the armature spindle（12）Axially（5）'s
Come in the rolling bearing by the movement buffered（20、22）Inner ring（28）With outer ring（26）Between axial gap carry out
Compensation；
In the axial force（F）When further increasing, first in the axial direction successively arrangement spring element（32）Higher bullet
Spring rigidly works, thus the armature spindle（12）Almost no longer axially（5）Offset；
Also further improving the axial force（F）In the case of, in the axial direction successively arrangement spring element（32）It is relatively low
Spring stiffness work, thus with raised axial force（F）The armature spindle（12）Further axially（5）Partially
It moves.
21. pressing method of claim 20, which is characterized in that in the axial force（F）Rotor when further increasing
Axis（12）It is supported on the housing component in the axial direction（16）Backstop（72、73）On, thus to acting on the rolling bearing
（20、22）Axial force（F）It is limited.
22. pressing method of claim 20, which is characterized in that in axial force（F）It is acted on along opposite direction described
Armature spindle（12）Armature spindle when upper（12）Offset（X）Almost about along the axial direction（5）Offset（X）Symmetrically
It advances on ground.
23. pressing method of claim 20, which is characterized in that in the armature spindle（12）After changing direction of rotation, borrow
Help the armature spindle（12）Axially（5）Come in the rolling bearing by the movement buffered（20、22）
Inner ring（28）With outer ring（26）Between axial gap compensate.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011089855 | 2011-12-23 | ||
| DE102011089855.7 | 2011-12-23 | ||
| DE201210208972 DE102012208972A1 (en) | 2011-12-23 | 2012-05-29 | Electric machine with an axial bias between a rolling bearing and a housing part, and method for operating such an electric machine |
| DE102012208972.1 | 2012-05-29 | ||
| PCT/EP2012/071220 WO2013091954A2 (en) | 2011-12-23 | 2012-10-26 | Electric machine having an axial prestress between a rolling bearing and a housing part, and method for operating such an electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103999334A CN103999334A (en) | 2014-08-20 |
| CN103999334B true CN103999334B (en) | 2018-09-11 |
Family
ID=48575805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280063513.6A Expired - Fee Related CN103999334B (en) | 2011-12-23 | 2012-10-26 | There is axial prestressed motor and the method for running such motor between rolling bearing and housing component |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2795770A2 (en) |
| KR (1) | KR20140106598A (en) |
| CN (1) | CN103999334B (en) |
| DE (1) | DE102012208972A1 (en) |
| WO (1) | WO2013091954A2 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762773A (en) * | 2013-12-31 | 2014-04-30 | 宁波菲仕运动控制技术有限公司 | Bearing axial spring pre-tightening structure of servo motor |
| DE102014212133A1 (en) * | 2014-06-25 | 2015-12-31 | Robert Bosch Gmbh | drive unit |
| CN104590955B (en) * | 2014-12-10 | 2016-10-05 | 徐工集团工程机械股份有限公司 | Automatic takeup and rope body length measurement apparatus |
| DE102016202958A1 (en) * | 2016-02-25 | 2017-08-31 | Robert Bosch Gmbh | Electric machine, and gear drive unit containing such a machine |
| DE102016117082A1 (en) * | 2016-09-12 | 2018-03-15 | HELLA GmbH & Co. KGaA | Retaining spring for an actuator and actuator |
| DE102016012032A1 (en) * | 2016-10-11 | 2018-04-12 | Grammer Aktiengesellschaft | Housing for an electric drive |
| DE102016120356A1 (en) * | 2016-10-25 | 2018-04-26 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | driving device |
| DE102016225417A1 (en) | 2016-12-19 | 2018-06-21 | Robert Bosch Gmbh | Bearing device for a shaft and drive device with a bearing device |
| DE102017214116A1 (en) * | 2017-08-11 | 2019-02-14 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Drive device for a window regulator |
| CN107643176B (en) * | 2017-10-30 | 2024-04-19 | 南京磁谷科技股份有限公司 | Main machine structure of overspeed test stand |
| EP3620269A1 (en) * | 2018-09-07 | 2020-03-11 | Fruitcore Gmbh | Hinge bearing for a robot comprising an elastically compressible pre-loading element |
| DE102018009030A1 (en) * | 2018-11-16 | 2020-05-20 | Zf Active Safety Gmbh | Bearing arrangement |
| DE102019205246A1 (en) * | 2019-04-11 | 2020-10-15 | Robert Bosch Gmbh | Shaft arrangement, drive unit and working device |
| CN110194210B (en) * | 2019-05-30 | 2021-08-31 | 奇瑞汽车股份有限公司 | Gear shaft clearance adjusting structure of steering gear |
| DE102019219218A1 (en) * | 2019-12-10 | 2021-06-10 | Robert Bosch Gmbh | Electric drive |
| DE102020201957A1 (en) * | 2020-02-17 | 2021-08-19 | Scanlab Gmbh | Galvanometer drive with backlash-free bearing |
| KR102563341B1 (en) * | 2020-12-30 | 2023-08-07 | 계양전기 주식회사 | Motor Including Tension Member |
| CN113586603A (en) * | 2021-09-06 | 2021-11-02 | 上海电气集团上海电机厂有限公司 | Axial limiting device for rolling bearing of horizontally-installed sliding bearing motor |
| CN115098977A (en) * | 2022-07-20 | 2022-09-23 | 重庆大学 | Impact dynamic load calculation method for floating support friction plate assembly |
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| AT193063B (en) * | 1954-11-24 | 1957-11-25 | Aerzener Maschinenfabrik G M B | Work or power machine with at least one member rotating about a horizontal axis |
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| EP0943842A1 (en) * | 1998-03-19 | 1999-09-22 | Mannesmann VDO Aktiengesellschaft | Worm reduction gear |
| DE10058591A1 (en) * | 2000-11-25 | 2002-05-29 | Bosch Gmbh Robert | Device with bearing |
| DE102005056201A1 (en) * | 2005-11-25 | 2007-06-06 | Robert Bosch Gmbh | Electric drive unit, in particular electric motor with transmission for motor vehicle windshield wipers |
| EP1784907B1 (en) * | 2004-08-25 | 2009-03-11 | Robert Bosch Gmbh | Electric machine comprising an axial spring-loaded element |
-
2012
- 2012-05-29 DE DE201210208972 patent/DE102012208972A1/en not_active Withdrawn
- 2012-10-26 EP EP12780716.2A patent/EP2795770A2/en not_active Withdrawn
- 2012-10-26 KR KR1020147017147A patent/KR20140106598A/en active Search and Examination
- 2012-10-26 WO PCT/EP2012/071220 patent/WO2013091954A2/en active Application Filing
- 2012-10-26 CN CN201280063513.6A patent/CN103999334B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT193063B (en) * | 1954-11-24 | 1957-11-25 | Aerzener Maschinenfabrik G M B | Work or power machine with at least one member rotating about a horizontal axis |
| DE4039453A1 (en) * | 1990-12-11 | 1992-06-17 | Swf Auto Electric Gmbh | Vehicle windscreen wiper motor - has spring between inner ring of bearing and armature shaft securing ring to absorb axial thrust |
| EP0943842A1 (en) * | 1998-03-19 | 1999-09-22 | Mannesmann VDO Aktiengesellschaft | Worm reduction gear |
| DE10058591A1 (en) * | 2000-11-25 | 2002-05-29 | Bosch Gmbh Robert | Device with bearing |
| EP1784907B1 (en) * | 2004-08-25 | 2009-03-11 | Robert Bosch Gmbh | Electric machine comprising an axial spring-loaded element |
| DE102005056201A1 (en) * | 2005-11-25 | 2007-06-06 | Robert Bosch Gmbh | Electric drive unit, in particular electric motor with transmission for motor vehicle windshield wipers |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2795770A2 (en) | 2014-10-29 |
| DE102012208972A1 (en) | 2013-06-27 |
| KR20140106598A (en) | 2014-09-03 |
| WO2013091954A2 (en) | 2013-06-27 |
| CN103999334A (en) | 2014-08-20 |
| WO2013091954A3 (en) | 2014-05-08 |
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