CN104203626B - The transmission device and motor of helical teeth engagement - Google Patents
The transmission device and motor of helical teeth engagement Download PDFInfo
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- CN104203626B CN104203626B CN201380019437.3A CN201380019437A CN104203626B CN 104203626 B CN104203626 B CN 104203626B CN 201380019437 A CN201380019437 A CN 201380019437A CN 104203626 B CN104203626 B CN 104203626B
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- transmission device
- helical teeth
- driven
- driven shaft
- motor
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 44
- 230000008878 coupling Effects 0.000 claims description 71
- 238000010168 coupling process Methods 0.000 claims description 71
- 238000005859 coupling reaction Methods 0.000 claims description 71
- 230000000295 complement effect Effects 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000009102 absorption Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/18—Freewheels or freewheel clutches with non-hinged detent
- F16D41/185—Freewheels or freewheel clutches with non-hinged detent the engaging movement having an axial component
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
- F16D43/202—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type
- F16D43/2022—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with at least one part moving axially between engagement and disengagement
- F16D43/2024—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure of the ratchet type with at least one part moving axially between engagement and disengagement the axially moving part being coaxial with the rotation, e.g. a gear with face teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
- F16D7/04—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type
- F16D7/042—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with at least one part moving axially between engagement and disengagement
- F16D7/044—Slip couplings, e.g. slipping on overload, for absorbing shock of the ratchet type with at least one part moving axially between engagement and disengagement the axially moving part being coaxial with the rotation, e.g. a gear with face teeth
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- 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
- H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H31/00—Other gearings with freewheeling members or other intermittently driving members
-
- 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
- H02K7/118—Structural association with clutches, brakes, gears, pulleys or mechanical starters with starting devices
- H02K7/1185—Structural association with clutches, brakes, gears, pulleys or mechanical starters with starting devices with a mechanical one-way direction control, i.e. with means for reversing the direction of rotation of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The present invention relates to one kind to be used in particular for motor（1）Helical teeth engagement transmission device（9）, the transmission device has：Drive shaft（12）, relative can not turn to be disposed with the driving pinion of helical teeth engagement over the ground in the drive shaft（5）, particularly worm screw（11）；And driven pinion（15）, particularly worm gear（13）, it is arranged in driven shaft（14）It is upper and with the driving pinion（5）Engagement.Propose, the driven pinion（5）By means of idling device（17）With the driven shaft（14）It is connected, wherein, the idling device（17）At least substantially rotation direction controllably designs.The invention further relates to a kind of motor.
Description
Technical field
The present invention relates to a kind of transmission device particularly engaged for the helical teeth of motor, the transmission device has：Drive
Moving axis, it relative can not turn to be disposed with the driving pinion of helical teeth engagement, particularly worm screw over the ground in the drive shaft；With it is driven
Little gear, particularly worm gear, it is arranged on driven shaft and engaged with the driving pinion.
A kind of motor the invention further relates to motor, particularly for motor vehicle has the transmission device of helical teeth engagement,
The transmission device has：Drive shaft, it relative can not turn to be disposed with the small tooth of driving of helical teeth engagement over the ground in the drive shaft
Wheel, particularly worm screw；With driven pinion, particularly worm gear, it is arranged on driven shaft and nibbled with the driving pinion
Close, wherein, drive shaft is formed by the armature spindle of motor.
Background technology
Start the type transmission device and motor by known in the art.The structure of motor and particularly armature spindle
Supporting structure be now main flow technology.Usual armature spindle is equipped with bearing, especially in the both sides for the stack of laminations for forming rotor
It is rolling body bearing, it is fixed in the housing of motor.The free end of armature spindle is equipped with driving pinion, passes through the drive
Dynamic little gear continues to transmit the torque provided by motor.Transmission device is provided with generally for transmission torque is continued, transmission dress
Put influences rotating speed and torque by favourable ways and means.In order to provide extra high torque, transmission device on driven shaft
It is usually designed to worm gearing.By driving pinion and if necessary also including driven pinion helical teeth engagement or
Person is that the helical teeth engagement of worm and worm wheel also generates axial power, and the power is also acted against on armature spindle.In order to absorb in housing
This axial power, generally the rolling element for being associated with driving pinion is pressed on armature spindle and carries outer shroud
（beschultert）Compressed in the housing or by the outer shroud of rolling element in the housing and by inner ring carrying with axial restraint and
It is axially fixed on armature spindle.In some applications, in normal work, axial force is all the time or most in same direction to rotor
Axle acts, and is essentially available for so as to the supporting structure of armature spindle（Along a direction）Ta-king up axial forces.When rotation direction is reversed
Or when breaking down, but caused axial force can be inverted or worked in opposite direction.In this case, prop up
Bearing structure is by unfavorable load.One design of supporting structure is that the supporting structure can similarly be inhaled along both direction
Axial force is received, but this could only be realized in the case of high structural input.
The content of the invention
Had according to the transmission device that the helical teeth of the present invention engages：Drive shaft, it is relatively unrotatable in the drive shaft
Ground is disposed with driving pinion, the i.e. worm screw of helical teeth engagement；With driven pinion, i.e. worm gear, its be arranged on driven shaft and
Engaged with the driving pinion, wherein, the driven pinion is connected by means of idling device with the driven shaft, wherein,
At least substantially rotation direction controllably designs the idling device, wherein, the idling device is designed to dog-clutch, and
And wherein, the dog-clutch has the first coupling element for being associated with the driven pinion and is associated with the driven shaft
The second coupling element, wherein, the coupling element has complementary helical teeth engaging piece in side respectively, and wherein, described
At least one in coupling element can axially movably arrange, it is characterised in that first coupling element is by the worm gear shape
Into, wherein, second coupling element is designed to coupling ring, wherein, the coupling ring relatively unrotatablely with it is described driven
Axle is connected.Transmission device according to the present invention is prevented when a failure occurs it along the opposite way round relative to the advantages of prior art
The axial force to work acts to armature spindle and particularly to its supporting structure.Therefore, it is proposed, according to the invention, that it is described from
Dynamic little gear is connected by means of idling device with the driven shaft, wherein, the idling device at least substantially rotation direction by
The design of control ground.Therefore driven pinion relative can not directly not turn with driven shaft to be connected over the ground.Alternatively, driven shaft with from
Idling device is provided between dynamic little gear, the idling device is according to rotation direction or driving rotation direction and if necessary according to be passed
The power transmission on from driven pinion to drive shaft is realized or prevented to torque energy pass and/or counteractive.Due to driven small
Gear can continue to drive and be thus rotated further based on idle running, be passed to without power on driven shaft, therefore pass through
The helical teeth engagement of driving pinion will not produce the axial force acted to armature spindle.
Preferably, the idling device is designed to dog-clutch.Thus idling device carries out shape along a rotation direction
The driving force transmission that shape coordinates, and be stopped along the form fit of another rotation direction and therefore power transmission terminates.Claw type
Clutch only needs small structure space and therefore can be integrated in well in transmission device.
Preferably, the dog-clutch has the first coupling element for being associated with the driven pinion and is associated with institute
The second coupling element of driven shaft is stated, wherein, the coupling element has complementary helical teeth engaging piece, and its in side respectively
In, at least one coupling element is axially displaceably arranged.Complementary helical teeth engaging piece causes above-mentioned operation principle, wherein,
Form fit be present along driving rotation direction, and stop the form fit along opposite rotation direction.This is achieved in：When along phase
During anti-direction driving, helical teeth engaging piece when overstep the extreme limit torque when coupling element axially squeezed each other.Due at least one
Coupling element is axially movably arranged, therefore the axial movement is allowed to, so as to when overstep the extreme limit torque when helical teeth engaging piece
It is disengaged and thus can no longer carries out power transmission.
Scheme, which is advantageously improved, according to one of the present invention proposes that first coupling element is by driven pinion or described
Worm gear is formed.Thus first coupling element is integrally formed with driven pinion or worm gear.By the way that coupling element is so integrated in
In driven pinion, there is provided the particularly compact structure type of transmission device.It can certainly alternatively consider, the first coupling
Conjunction element is formed separately with driven pinion and when mounted at least can not phase by driven pinion and the first coupling element
To turning to be connected with each other over the ground.
Preferably, second coupling element is designed to coupling ring.Pass through the annular design of the second coupling element
It can be pushed it to by simple ways and means on driven shaft.
Preferably, the coupling ring relative can not turn with the driven shaft to be connected over the ground.It is specifically designed to, coupling ring has
Radially-inwardly prominent drive protuberance, its drive recess collective effect corresponding with driven shaft.It can certainly couple
Multiple drive protuberances are set on ring and driven shaft and drive recess.All ensure that under any circumstance from coupling ring to driven shaft
On form fit power transmission.
Itd is proposed according to the preferred embodiment of the present invention, on the driven shaft, the coupling ring axially-displaceable
Arrange dynamicly, and driven pinion or the worm gear are axially arranged regularly and rotationally.Also just carried according to the embodiment
Go out, coupling ring is axially movable, especially to realize being disengaged for the helical teeth engaging piece of dog-clutch.Driven pinion
It is arranged on driven shaft in this axial restraint, but with the free degree along direction of rotation, so as to which it can be turned round on driven shaft
Turn.In normal work, therefore driving force is passed on driven pinion by driving pinion, and the driven pinion will drive
The helical teeth engaging piece that power continues through dog-clutch is delivered on driven shaft.If driving rotation direction to reverse, couple
Ring is moved axially when more than corresponding torque by the helical teeth engaging piece of dog-clutch, so as to the helical teeth of dog-clutch
Engaging piece is disengaged and therefore not transferred force on driven shaft.Correspondingly, driving pinion and driven pinion are passed through
Helical teeth engaging piece do not have axial force and be applied in drive shaft, the axial force can produce negative shadow to the supporting structure of drive shaft
Ring.
Preferably proposed according to the interchangeable embodiment of the present invention, on the driven shaft, the worm-wheel shaft
To arranging movably and rotationally, and the coupling ring axial restraint arrange.The phase of the embodiment described before
Distinctively alternatively yet just proposition, is not coupling ring but worm gear itself is axially movably arranged, so as to when exchange driving
Being disengaged for the helical teeth engaging piece of dog-clutch can be realized during rotation direction.Then accord with above-mentioned work in other side
Principle.
Preferably, the coupling ring and driven pinion or the worm gear utilize its helical teeth engaging piece phase with being spring loaded
Mutually clamp.Spring loads, which are tensioned, to be used for, and dog-clutch or idling device are kept into form fit engagement in normal work, or
After rotation direction has been exchanged（Now, coupling element engagement disconnected from each other）It ensure that, coupling element is intermeshed again.For
Spring loads are realized, provided with a preferably at least spring element, particularly spring washer, particularly preferably at least one dish type
Spring or helical spring, its be preferably tightly retained in advance axial stop on driven shaft and driven pinion or coupling ring it
Between.The axial stop of driven shaft is especially formed by convex shoulder herein, and the convex shoulder is formed by the enlarged-diameter portion of driven shaft.In order to protect
Pretension is held, another axial stop, driven pinion or coupling ring is preferably provided with and is extruded by means of at least one spring element
To the axial stop.Second axial stop for example can be by the stationary annular that is arranged on driven shaft into the retainer ring is located at
In the annular groove of driven shaft.
There is the armature spindle that can be rotatably supported in housing according to the motor of the present invention and filled according to the transmission of the present invention
Put, the transmission device has：Drive shaft, the driving for being disposed with helical teeth engagement relatively unrotatablely in the drive shaft are small
Gear, i.e. worm screw；With driven pinion, i.e. worm gear, it is arranged on driven shaft and engaged with the driving pinion, its
In, the armature spindle forms the drive shaft of the transmission device.It is the supporting knot of armature spindle according to the advantages of motor of the present invention
Structure can most preferably be constructed with rotation direction, because reliably prevent the axial force for producing detrimental effect --- it is in reverse to just
Normal action direction.Therefore, motor has transmission device, as previously described.Other embodiment and advantage are therefore also as described above
Draw.
Brief description of the drawings
Under with reference to the accompanying drawings describe in detail the present invention.Shown in figure
Fig. 1 shows motor with simplified longitudinal sectional view,
Fig. 2 shows an advantageous embodiment of worm gearing,
Fig. 3 shows the exploded view of the idling device of worm gearing,
Fig. 4 shows another embodiment of favourable worm gearing, and
Fig. 5 shows the exploded view of second embodiment.
Embodiment
Fig. 1 shows motor 1 with simplified longitudinal sectional view, and it has one relative can not turn to be arranged in over the ground on armature spindle 2
Rotor 3, wherein, armature spindle 2 is rotatably supported in housing 4.Fig. 1 is provided with also on its free end on armature spindle 2
In the driving pinion 5 of transmission device 9 that is not shown specifically, it has helical teeth engaging piece 6.
For support of rotor shaft 2, provided with two rolling body bearings 7 and 8.Arranged in this rolling body bearing 7 on armature spindle 2
Between rotor 3 and driving pinion 6, and rolling body bearing 8 is arranged on the side being oppositely arranged of rotor 3.Drive small tooth
The helical teeth engaging piece 6 of wheel 5 produces axial force at work, and the responsive to axial force is in armature spindle 2 and generally utilizes rolling element axle
Hold 7 absorptions and supporting.Therefore, the inner ring of rolling body bearing 7 is pressed on armature spindle 2 and outer shroud is carried on the natural axis of housing 4
To fixation.But the type of supporting structure is unimportant for the present invention.It is important herein to be only that, supporting structure type
High axial force can be generally absorbed along only one direction.This supporting structure is used in particular for wherein motor 1 all the time along identical
The application of rotation direction work, such as the extrusion piston of hydraulic pressure is driven by transmission device 9 for motor, the motor.However,
If the rotation direction of drive shaft 2 changes, this is used for, and axial force is based on helical teeth engagement and acts on rotor in opposite direction
Axle 2.If supporting structure correspondingly designed for substantially along only one direction ta-king up axial forces, this can cause motor by
Damage.The supporting structure of axial force can be loaded in the same manner along both direction may cause structural and manufacturing technology high cost.
Fig. 2 shows one embodiment of the transmission device 9 advantageously designed, is prevented using the embodiment, axial force
The supporting structure of armature spindle 2 is had an impact along unfavorable direction.According to the present embodiment, transmission device 9 is designed to worm-drive
Device 10, wherein, driving pinion 5 is set by worm screw 11, and the worm screw relative can not turn to be arranged in over the ground to rise as drive shaft 12
On the armature spindle 2 of effect.Worm screw 11 and worm gear 13 are engaged, and the worm gear is arranged on driven shaft 14.Therefore worm gear 13 is and driven
The coefficient driven pinion 15 of little gear 5.Worm gear 13 can have in its shell side helical teeth engaging piece or straight for this
The gear teeth, it and the collective effect of worm screw 11.Worm gear can be rotatable on driven shaft 14 and axially displaceably arranged, such as passes through double arrows
First 16 show ground.The axial force being applied on worm gear 13 is delivered to by means of idling device 17 is substantially relevant with rotation direction
On driven shaft 14.
Idling device 17 has dog-clutch 18, and the dog-clutch is formed by two coupling elements 19 and 20.First
Coupling element 19 is integrally formed with worm gear 13 herein, and the second coupling element 20 is formed by single coupling ring 21, and the coupling ring is not
It relative can turn to be connected and be axially fixed in thereon with driven shaft 14 over the ground.On the other hand, coupling ring 21 is located at driven shaft 14 in side
Backstop convex shoulder on and fixed by the retainer ring 22 in the annular groove 23 of driven shaft 14 in opposite side.
Fig. 3 illustrates the part of the slave end of worm gearing 10 with exploded perspective to be better understood from.In order to
Driven shaft 14 relative can not turn to be connected over the ground, coupling ring 21 on the inside of it on there is radially-inwardly prominent drive protuberance 24,
The drive protuberance is located in the drive recess 25 of driven shaft 14 in the assembled state, wherein, see in circumferential direction, shape
It is used for power transmission into the form fit between drive protuberance 24 and drive recess 25.
Coupling ring 21 has helical teeth engaging piece 26 on its side towards worm gear, and the helical teeth engaging piece is characterised by,
Tooth in rotation direction with pitch face 27, in opposite rotation direction with the vertical flank of tooth 28.Helical teeth engaging piece
Therefore 26 are drawn by the pitch face 27 of tooth.Substantially, helical teeth engaging piece 26 is equivalent to straight line profile gear-tooth（Hirth-
Verzahnung）, wherein, tooth is on side with pitch face and on another side with the vertical or steep flank of tooth.
Worm gear 13 has groove 29 on the side towards coupling ring 21, and its external diameter exceedes the external diameter of coupling ring 21, therefore
Coupling ring 21 can be fully accommodated in groove 29.The bottom of groove 29 is equipped with the helical teeth complementary with helical teeth engaging piece 26 and engaged
Portion 30, it is likewise characterized by having the tooth on side pitch face and the vertical inclined-plane of opposite side.Worm gear 13 itself is nibbled using helical teeth
Conjunction portion 30 forms the first coupling element 19, first coupling element and the collective effect of coupling ring 21.
By the complementary design of helical teeth engaging piece 26 and 30, in an initial condition, the tooth position of coupling ring 21 is in coupling member
Between the tooth of part 19.Thus this is supported that is, coupling ring 21 is axially fixed on driven shaft 14, and worm gear 13 passes through multiple
The disc spring 31 held on the convex shoulder 32 of driven shaft 14 is pressed towards coupling ring 21, as shown in Figure 2.
In normal work, worm gear 13 is so driven by worm screw, i.e. the vertical flank of tooth of helical teeth engaging piece 30 is pressed towards
The vertical flank of tooth 28 of helical teeth engaging piece 26.Thus coupling ring 21 is shape-ordinatedly driven, by drive recess 25
Protuberance 24 is driven to continue to be delivered on driven shaft 14 by power, so that it is rotated.If changing the rotation direction of motor 1,
This causes, and the pitch face of helical teeth engaging piece 30 is pressed towards the pitch face 27 of helical teeth engaging piece 26 now.Thereby produce axial force,
The axial force so works between coupling ring 21 and worm gear 13, i.e., it is enough when more than the breakdown torque that can also be transmitted
Ground extrudes.Because coupling ring 21 is axially fixed on driven shaft 14, therefore worm gear 13 remotely overcomes disk by coupling ring 21 herein
The power of shape spring 31 moves on driven shaft 14 along the direction of backstop convex shoulder 32.Thus, helical teeth engaging piece 26 and 30 is disengaged
And driving force is no longer passed on driven shaft 14.Correspondingly, drive shaft will not pass through the helical teeth engagement shaft of worm and worm wheel
It is loaded to ground along unfavorable direction.It thus prevent the overload of armature spindle or the supporting structure of drive shaft 12.
Figure 4 and 5 show another embodiment of the motor 1 with worm gearing 10, it is known that element have
Identical reference, therefore refer to described above.It will be detailed below only inquiring into difference.
Fig. 4 shows worm gearing 10 with perspective cut-away schematic view.With differing only in for preceding embodiment, the axle of worm gear 13
To being fixed on driven shaft 14, and coupling ring 21 is axially movably arranged on driven shaft 14.In addition this arrangement so becomes
Change, i.e., the present pressure of coupling ring 21 is tightly retained between the worm gear of axial restraint and disc spring 31.If motor 1 is along normal work
Make direction driving, then helical teeth engaging piece 26 and 30 is engaged with each other using the vertical flank of tooth vertical in other words, and driving force is by shape
Ordinatedly it is delivered on driven shaft 14.If changing the rotation direction of motor 1, the pitch face of helical teeth engaging piece 26 and 30 is by coupling
Cyclization 21 overcomes the spring force of disc spring 31 to be pressed from worm gear 13 from therefore helical teeth engaging piece 26 and 30 is disengaged and interrupted
Power transmission on to driven shaft.Therefore prevented according to the embodiment also by simple ways and means by means of idling device 17
Armature spindle 2 loaded in case of a fault or when being not intended to change rotation direction along unfavorable direction.
Rotation axis of the recess 25 in this case parallel to driven shaft 14 preferably in the form of pod is driven to align, from
And coupling ring 21 can be utilized and drive protuberance 24 to be moved on driven shaft 14, without making drive protuberance 24 and driving recessed
Portion 25 is disengaged.
In theory also, it is contemplated that idling device 17 is set in driving side, that is in the drive shaft 12 of motor 1.
Above-mentioned motor 1 in brake booster particularly suitable for being used as drive device, it usually requires normal work rotation
Direction and will not or only seldom it be driven along opposite rotation direction with low torque.It can be avoided by idling device 17
Armature spindle 2 puts into big and Expenses Cost supporting in housing 4.Because idling device 17 is almost built entirely within worm gear 13
In, therefore it can be set in the case of not big supernumerary structure space requirement.
Driven shaft 14 is for example connected by connecting rod with hydraulic piston to be driven, wherein, connecting rod is by the rotation of driven shaft 14
Motion is converted to the translational motion of piston.Described disc spring 31 can certainly be more or less set, for compressing pawl
Shape clutch 18.
Alternatively also, it is contemplated that disc spring 31 is replaced by helical spring.In principle can unrestricted choice spring number
Amount or adjustable spring force, but by selected spring force, determined before helical teeth engaging piece 26 and 30 is disengaged
Can also be along the torque of opposite rotation direction transmission, idling device 17 permission.Spring force is bigger, then the He of helical teeth engaging piece 26
30 are disengaged more lately.The work of idling device 17 therefore can be adjusted by simple ways and means according to applicable cases
With.
Claims (7)
- A kind of 1. transmission device of helical teeth engagement（9）, the transmission device has：Drive shaft（12）, in the drive shaft not The driving pinion of helical teeth engagement can be disposed with relative rotation（5）, i.e. worm screw（11）；And driven pinion（15）, i.e. worm gear （13）, it is arranged in driven shaft（14）It is upper and with the driving pinion（5）Engagement, wherein, the driven pinion（15） By means of idling device（17）With the driven shaft（14）It is connected, wherein, the idling device（17）At least substantially rotation side To controllably designing, wherein, the idling device（17）It is designed to dog-clutch（18）, and wherein, the claw type clutch Device（18）With being associated with the driven pinion（15）The first coupling element（19）Be associated with the driven shaft（14）'s Second coupling element（20）, wherein, the coupling element（19、20）There is complementary helical teeth engaging piece in side respectively（26、 30）, and wherein, the coupling element（19、20）In at least one can axially movably arrange, it is characterised in that it is described First coupling element（19）By the worm gear（13）Formed, wherein, second coupling element（20）It is designed to coupling ring（21）, Wherein, the coupling ring（21）Relatively unrotatablely with the driven shaft（14）It is connected.
- 2. transmission device according to claim 1, it is characterised in that the transmission device（9）For motor（1）.
- 3. transmission device according to claim 1, it is characterised in that in the driven shaft（14）On, the coupling ring （21）Axially can movably it arrange, and the worm gear（13）Axial restraint and can rotationally arrange.
- 4. transmission device according to claim 1, it is characterised in that in the driven shaft（14）On, the worm gear（13） It can axially arrange movably and rotationally, and the coupling ring（21）Arrange axial restraint.
- 5. transmission device according to claim 1, it is characterised in that the coupling ring（21）With the worm gear（13）By bullet Spring loading ground utilizes its helical teeth engaging piece（26、30）Mutually clamp.
- 6. a kind of motor, there is the armature spindle that can be rotatably supported in housing（2）And transmission device（9）, the transmission device Have：Drive shaft（12）, it is disposed with the driving pinion that helical teeth engages relatively unrotatablely in the drive shaft（5）, i.e. Worm screw（11）；And driven pinion（15）, i.e. worm gear（13）, it is arranged in driven shaft（14）It is upper and with the driving pinion （5）Engagement, wherein, the armature spindle（2）Form the transmission device（9）Drive shaft（12）, it is characterised in that construction basis Transmission device any one of preceding claims（9）.
- 7. motor according to claim 6, it is characterised in that the motor is the motor for motor vehicle.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012205995.4 | 2012-04-12 | ||
| DE102012205995A DE102012205995A1 (en) | 2012-04-12 | 2012-04-12 | Helical gear, electric machine |
| PCT/EP2013/056575 WO2013152955A1 (en) | 2012-04-12 | 2013-03-27 | Helical-toothed gear unit, electrical machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104203626A CN104203626A (en) | 2014-12-10 |
| CN104203626B true CN104203626B (en) | 2017-12-08 |
Family
ID=47998456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380019437.3A Expired - Fee Related CN104203626B (en) | 2012-04-12 | 2013-03-27 | The transmission device and motor of helical teeth engagement |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2836385A1 (en) |
| CN (1) | CN104203626B (en) |
| DE (1) | DE102012205995A1 (en) |
| WO (1) | WO2013152955A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305719A (en) * | 2015-11-24 | 2016-02-03 | 王琳 | Worm transmission mechanism |
| DE102017206641A1 (en) * | 2017-04-20 | 2018-10-25 | Bayerische Motoren Werke Aktiengesellschaft | Drive unit and motor vehicle with a drive unit |
| EP4117863A4 (en) * | 2020-03-13 | 2024-03-27 | Black & Decker, Inc. | Pipe clamp, pipe clamp driver and anti-backdrive mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4980591A (en) * | 1988-12-20 | 1990-12-25 | Asmo Co., Ltd. | One-way clutch for a reduction-geared motor |
| DE29611395U1 (en) * | 1996-07-01 | 1997-11-06 | Gebr. Bode & Co GmbH, 34123 Kassel | Electromechanical drive device for a rotating column for moving a swing door leaf on a vehicle |
| DE20208246U1 (en) * | 2002-05-27 | 2003-10-09 | Kiekert Ag | Geared motor for sliding doors or tailgates in vehicles, has axially movable coupling part on output shaft for engaging gear wheel with this shaft |
| CN2609267Y (en) * | 2003-03-17 | 2004-03-31 | 刘秋雄 | Composite step-counting control and clutcuh driven D.C. motor apparatus |
| CN1651700A (en) * | 2004-01-22 | 2005-08-10 | 株式会社美姿把 | Automatic opening and closing system for vehicle |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04300425A (en) * | 1991-03-27 | 1992-10-23 | Jidosha Denki Kogyo Co Ltd | Miniature motor with friction clutch |
| DE10356976A1 (en) * | 2003-02-20 | 2004-09-16 | Dr.Ing.H.C. F. Porsche Ag | Motor vehicle door lock has rotary pawl shaft with freely mounted worm wheel engaging connector assembly for pawl lock |
| JP4346638B2 (en) * | 2006-12-01 | 2009-10-21 | 株式会社ツバキエマソン | Reducer with built-in one-way clutch for automobile brake speed test |
| US8151718B2 (en) * | 2009-05-20 | 2012-04-10 | Deere & Company | Adjustable seed meter drive coupling |
-
2012
- 2012-04-12 DE DE102012205995A patent/DE102012205995A1/en not_active Ceased
-
2013
- 2013-03-27 WO PCT/EP2013/056575 patent/WO2013152955A1/en active Application Filing
- 2013-03-27 EP EP13712561.3A patent/EP2836385A1/en not_active Withdrawn
- 2013-03-27 CN CN201380019437.3A patent/CN104203626B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4980591A (en) * | 1988-12-20 | 1990-12-25 | Asmo Co., Ltd. | One-way clutch for a reduction-geared motor |
| DE29611395U1 (en) * | 1996-07-01 | 1997-11-06 | Gebr. Bode & Co GmbH, 34123 Kassel | Electromechanical drive device for a rotating column for moving a swing door leaf on a vehicle |
| DE20208246U1 (en) * | 2002-05-27 | 2003-10-09 | Kiekert Ag | Geared motor for sliding doors or tailgates in vehicles, has axially movable coupling part on output shaft for engaging gear wheel with this shaft |
| CN2609267Y (en) * | 2003-03-17 | 2004-03-31 | 刘秋雄 | Composite step-counting control and clutcuh driven D.C. motor apparatus |
| CN1651700A (en) * | 2004-01-22 | 2005-08-10 | 株式会社美姿把 | Automatic opening and closing system for vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104203626A (en) | 2014-12-10 |
| DE102012205995A1 (en) | 2013-10-17 |
| EP2836385A1 (en) | 2015-02-18 |
| WO2013152955A1 (en) | 2013-10-17 |
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Granted publication date: 20171208 |