CN103671623B - Free wheel - Google Patents
Free wheel Download PDFInfo
- Publication number
- CN103671623B CN103671623B CN201310424829.XA CN201310424829A CN103671623B CN 103671623 B CN103671623 B CN 103671623B CN 201310424829 A CN201310424829 A CN 201310424829A CN 103671623 B CN103671623 B CN 103671623B
- Authority
- CN
- China
- Prior art keywords
- freewheel
- retainer
- spring
- changed
- conversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims description 30
- 230000006835 compression Effects 0.000 claims description 26
- 238000007906 compression Methods 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000036316 preload Effects 0.000 description 11
- 238000003825 pressing Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
- F16D41/086—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action the intermediate members being of circular cross-section and wedging by rolling
- F16D41/088—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action the intermediate members being of circular cross-section and wedging by rolling the intermediate members being of only one size and wedging by a movement not having an axial component, between inner and outer races, one of which is cylindrical
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
- Friction Gearing (AREA)
Abstract
The invention relates to a freewheel, which can be switched by means of an operating device. The invention is characterized in that the operating device is combined with a spring mechanism connected in front of the freewheel, which spring mechanism is capable of allowing relative movement to achieve load balancing under high loads.
Description
Technical field
The present invention relates to a kind of freewheel, the freewheel can be changed by means of operation device.The invention further relates to
Drivetrain, speed changer, engine or the traction device transmission mechanism of this freewheel.
Background technology
Become known for the drivetrain of motor vehicle by the A1 of German laid-open document DE 101 48 961, there is epicyclic transmission mechanism
With the band freewheel that can be changed.It is a kind of as known to the A1 of German laid-open document DE 102 33 769 that there is improved gear shift elasticity
Automation shift transmission.
The content of the invention
The task of the present invention is, there is provided a kind of freewheel, the freewheel can be changed by means of operation device and should
Freewheel also has long service life in the case of relatively large torque is transmitted.
For a kind of freewheel that can be changed by means of operation device, the solution of the task is the operation dress
Put and combined with an elastic mechanism being connected to before the freewheel, the elastic mechanism allows relative motion in high capacity with flat
Weighing apparatus load.Elastic mechanism above is connected to by this, in the case of operation device is preselected against clamping direction,
Can make the part, especially preload spring and jamming roller of freewheel load be kept as it is small.
One preferred embodiment of the freewheel is characterised by that the elastic mechanism for being connected to before freewheel has pretension
Torque, when being changed to an idle running direction, the pre-fastening moment allows to take retainer and changes the relative fortune between retainer
It is dynamic.By taking retainer and changing the relative motion between retainer, load balance can be realized in a straightforward manner.
Another preferred embodiment of the freewheel is characterised by that the pre-fastening moment so designs so that when against institute
Relative motion does not occur between retainer and the conversion retainer in described take when stating the conversion of idle running direction.With the idle running
The direction of direction contrary also referred to as blocks direction or clamping direction.There is no phase taking between retainer and conversion retainer
Motion is made it possible to be quickly converted to torque transmission function from lost motion functionality.
Another preferred embodiment of the freewheel is characterised by, above described when being changed to idle running direction to take retainer
It can be reversed relative to each other against the pretightning force of at least one spring assembly with the conversion retainer.Pass through the spring assembly
Relatively small spring rate, ensure in a straightforward manner, by big load from take retainer be delivered to conversion retainer with
And on free wheel component such as the preload spring or jamming roller connected below.
Another preferred embodiment of the freewheel is characterised by that the spring assembly includes the compression bullet of multiple pre-pressings
Spring, the compression spring clamp in a circumferential direction in described take between retainer and the conversion retainer.Here,
Compression spring may be embodied as straight spiral compression spring, and the spiral compression spring is pressed into spring channels.But compress
Spring can also be embodied as the spiral compression spring of prebuckling, and the spiral compression spring of the prebuckling is also referred to as semielliptic spring.
Another preferred embodiment of the freewheel is characterised by, the conversion retainer has a projection, and the projection is embedding
Enter to described and take in retainer.The projection of the conversion retainer is preferably embedded in the such region for taking retainer
In：Compression spring is pressed against the region pre-pressing.
Another preferred embodiment of the freewheel is characterised by that the spring assembly includes the bending bullet of a pre-pressing
Spring, the flexural spring clamp in opposite circumferential direction in described take between retainer and the conversion retainer.Institute
State the compression spring identical function of flexural spring satisfaction and the foregoing description.For this purpose, these flexural springs are for example with axial direction
The end of warpage, which is embedded into, to be arranged in the conversion retainer and the opening taken on retainer.
Another preferred embodiment of the freewheel is characterised by that the freewheel is embodied as the clamping with jamming roller
Roller freewheel, the jamming roller can clamp between freewheel inner ring and freewheel outer ring.Slope is clamped preferably two
It is all disposed within individual direction of rotation on freewheel inner ring.Jamming roller is preferably arranged between two preload springs.Root
Depending on resultant direction according to preload spring, jamming roller can be clamped on one or the other direction to be clamped on slope.
Another preferred embodiment of the freewheel is characterised by that the retainer of taking has the first interior teeth portion, in order to
The freewheel is changed, first interior teeth portion couples with constructing the second interior teeth portion on the freewheel inner ring.In described
One in teeth portion is preferably implemented as straight-tooth portion.Another in the interior teeth portion is preferably implemented as helical teeth portion.Two interior teeth portions
It is preferred that intercoupled by the sliding sleeve with outer toothed portion.The axial movement of sliding sleeve causes to take retainer torsion, by
This causes the conversion of freewheel.
The invention further relates to the drivetrain with foregoing freewheel, speed changer, engine or traction device transmission
Mechanism.Traction device transmission mechanism is for example embodied as tape handler or chain-drive mechanism.Can according to the freewheel of the present invention
To be particularly advantageous for representing convertible epicyclic transmission mechanism.The convertible epicyclic transmission mechanism is preferably integrated into internal combustion
In the traction device transmission mechanism of machine, especially in tape handler or chain-drive mechanism.
Brief description of the drawings
Other advantages, feature and the details of the present invention is learnt by following description, wherein being described in detail with reference to the accompanying drawings not
Same embodiment.Accompanying drawing is shown：
Fig. 1 is the profile for passing through jamming roller plane according to the freewheel of the present invention；
Fig. 2 is the sectional side elevation of Fig. 1 freewheel；
Fig. 3 is the top view of the freewheel in Fig. 1 and 2；
Fig. 4 is profile of the freewheel in a plane in Fig. 1 to 3, and the compression bullet of pretension is disposed with the plane
Spring；
Fig. 5 shows the vertical section of freewheel similar with Fig. 1 to 4, according to another embodiment；
Fig. 6 is the top view of the freewheel in Fig. 5；
Fig. 7 shows the section of the flexural spring by pretension of the freewheel in Fig. 5 and 6.
Embodiment
Show with section to be integrated with the freewheel 4 according to two different embodiments in a different view in Fig. 1 to 7；
44 technique device 1；41.Technique device 1；41 be, for example, traction device disk, especially belt pulley, or the part of belt pulley.
Freewheel 4；44 can advantageously be used in the drivetrain of motor vehicle, especially in motor car engine or vehicle transmission
In.
Freewheel 4；44 include freewheel inner ring 5 and freewheel outer ring 8.In technique device 1；Under 41 mounted states,
Freewheel inner ring 5 is connected with driving element, such as bent axle without relative rotation.
In technique device 1；Under 41 mounted states, freewheel outer ring 8 can be by traction device, such as belt or cog belt
Winding.Freewheel outer ring 8 has outer toothed portion 9 in radially outer configuration.Outer toothed portion 9 is used to produce the shape with (unshowned) cog belt
Sealed connection.But outer toothed portion 9 can be used for representing the sun gear of planetary driving device.
Total of eight jamming roller 10 is disposed between freewheel inner ring 5 and freewheel outer ring 8 in radial directions.This
A little jamming rollers are respectively arranged or are clamped between two preload springs 11,12.Freewheel outer ring 8 has circle in inner radial
The interior diameter of shape.Freewheel inner ring 5 has the clamping slope worked in two rotational directions in radially outer.According to pre- negative
Depending on the resultant direction for carrying spring 11,12, clamping slope of the jamming roller 10 between freewheel inner ring 5 and freewheel outer ring 8
On clamped on one or the other direction.
Such situation can be produced in the operation of traditional freewheel：Freewheel also clamps and another in one direction
It has been preselected on individual regulation direction.In pre-selection, traditional regulation retainer is twisted, wherein, really conversion is in torque
Just carried out when direction inverts.When clamping, rotor reversed a gripping angle.
In regulation, regulation retainer reverses a regulation angle.The regulation angle and gripping angle have tolerance.At angle
In the case that degree is big, preload spring can be compacted, and too high bear is applied in so as to adjust the connection strap of retainer or other regions
Carry and be broken.In order to avoid such case, regulation angle must be designed to relatively large, and which has limited the possible folder on circumference
Tight roller quantity.The quantity of jamming roller on circumference again limits transferable freewheel torque.
According to an important aspect of the present invention, there is provided a convertible freewheel 4；44, it uses up in transferable torque
May greatly so as to the quantity of jamming roller it is as big as possible in the case of, even in preselecting governor motion on the contrary with clamping direction
In the case of also make preload spring and adjust retainer load be kept as it is small.For this purpose, structure is a kind of convertible
Freewheel 4；44, there is the elastic mechanism being connected to before the freewheel.
According to the freewheel 4 of the present invention；44 include conversion retainer 15；55.Change retainer 15；55 are alternatively referred to as adjusted
Retainer.In conversion retainer 15；55 above connect an elastic mechanism, and the elastic mechanism can allow for conversion to protect in high capacity
Hold frame 15；55 and take retainer 20；Relative motion between 60.Pass through two retainers 15；50 and 20；Relative fortune between 60
It is dynamic, load compensation can be realized in a straightforward manner.
See in Fig. 2 and 5 vertical section, rolling element 17 be disposed between freewheel inner ring 5 and freewheel outer ring 8,
18.Rolling element 17,18 is embodied as ball and represented for the double of supporting of the freewheel outer ring 8 on freewheel inner ring 5 and guiding
Row angular contact ball bearing.
Preload spring 11,12 between jamming roller 10 can be by conversion retainer 15；55 load from both sides.According to turn
Change retainer 15；Depending on 55 direction of rotation, freewheel 4；44 can be switched on a direction or another direction.
In order to change freewheel 4；44, taking retainer 20；The first interior teeth portion 21 is configured with 60；61.Second internal tooth
Portion 22；62 constructions are on freewheel inner ring 5.First interior teeth portion 21；61 are embodied as straight-tooth portion.Second interior teeth portion 22；62 are embodied as
Helical teeth portion.
Alternatively, can also be by the first interior teeth portion 21；61 are embodied as helical teeth portion and by the second interior teeth portion 22；62 are embodied as directly
Teeth portion.One (unshowned) sliding sleeve is used for the conversion, and the sliding sleeve is scarfed to two interior teeth portions 21；22 and 61；62
In.The axial movement of the sliding sleeve causes to take retainer 20；60 relative to freewheel inner ring 5 rotary motion.
See in figures 2 and 4, projection 25 is configured with conversion retainer 15, and the projection is embedded into construction and taken
In spring coupling regime or spring loads region 26 on retainer 20.Change the projection 25 of retainer 15 and take retainer
20 spring coupling regime is in other words between spring loads region 26, the quilt of compression spring 27,28 to be worked on conversion direction
Pre-pressing.
Compression spring 27,28 is embodied as the spiral compression spring of prebuckling and is therefore also referred to as semielliptic spring.But
Compression spring 27,28 can also be embodied as straight and be pressed into construction between changing retainer 15 and taking retainer 20
Spring channels in.
Compression spring 27,28 is in circumferential direction by such pre-pressing so that produces pre-fastening moment.So design compression bullet
The pre-fastening moment of spring 27,28 so that when freewheel 4 is changed to clamping direction take retainer 20 and conversion retainer 15 it
Between relative motion does not occur.
When being changed against clamping direction, in the conversion backstop of retainer 15 to jamming roller 10.In big external operating force
Under further angle reverse and cause the compression spring 27,28 of pretension further elastic compression.Here, compression spring 27,
28 have relatively small spring rate, and the spring rate interception is in conversion retainer 15, preload spring 11,12 and clamps
Raise to load excessive on roller 10.
Here, compression spring 27,28 is a spring assembly 29, by the spring assembly provide again it is foregoing, be connected to from
By the elastic mechanism 30 before wheel 4.By elastic mechanism 30, it can will adjust angle and be assigned to the angle until jamming roller backstop
Degree and in the angle of the elastic compression of compression spring 27,28 of pretension.Thus large number of jamming roller can be realized, because
Only beard and hair life adjusts a part for displacement between jamming roller 10, and another part in conversion retainer 15 and takes retainer 20
Between occur.
The technique device 41 shown in Fig. 5 to 7 includes the freewheel similar with the freewheel 4 shown in Fig. 1 to 4
44.Identical reference number is used for mark identical part.Freewheel 4 is inquired into below；Difference between 44.
In freewheel 44 shown in Fig. 5 to 7, a flexural spring 66 conversion retainer 55 and take retainer 60 it
Between pre-pressing.The flexural spring 66 represents a spring assembly 69 elastic mechanism 70 in other words, and the elastic mechanism is as in freewheel 4
Spring assembly 29 or elastic mechanism 30 work like that.
Flexural spring 66 is embedded into opening 71,72 with the end of axial warpage, and the opening is arranged on conversion retainer
55 and take on retainer 60.Here, the flexural spring 66 of pretension extends between opening 71 and 72 in circumferential direction.
List of reference signs
1 traction device disk
4 freewheels
5 freewheel inner rings
8 freewheel outer rings
9 outer toothed portions
10 jamming rollers
11 preload springs
12 preload springs
15 conversion retainers
17 rolling elements
18 rolling elements
20 take retainer
21 first interior teeth portions
22 second outer toothed portions
25 projections
26 spring loads regions
27 compression springs
28 compression springs
29 spring assemblies
30 elastic mechanisms
41 traction device disks
44 freewheels
55 conversion retainers
60 take retainer
61 first interior teeth portions
62 second interior teeth portions
66 flexural springs
69 spring assemblies
70 elastic mechanisms
71 openings
72 openings
Claims (12)
1. freewheel, the freewheel can be changed by means of operation device, it is characterised in that the operation device is connected to one
The freewheel (4；44) elastic mechanism (30 before；70) combine, in high capacity, the elastic mechanism allows relative motion
To realize load balance, retainer (20 is taken one；60) the first interior teeth portion (21 is configured with；61), in the freewheel (4；
44) the second interior teeth portion (22 is configured with inner ring (5)；62), in order to change the freewheel (4；44), first interior teeth portion
(21；61) with second interior teeth portion (22；62) it is coupled.
2. freewheel according to claim 1, it is characterised in that be connected to the freewheel (4；44) the elastic machine before
Structure (30；70) there is pre-fastening moment, when being changed to an idle running direction, the pre-fastening moment can allow for described taking retainer
(20；60) and conversion retainer (15；55) relative motion between.
3. freewheel according to claim 2, it is characterised in that the pre-fastening moment so designs so that when against the sky
When Cheng Fangxiang is changed retainer (20 is taken described；60) retainer (15 is changed with described；55) relative motion is occurred without between.
4. according to the freewheel of Claims 2 or 3, it is characterised in that take retainer described in when being changed to idle running direction
(20；60) retainer (15 is changed with described；55) can be against at least one spring assembly (29；69) pretightning force is relative to that
This is reversed.
5. freewheel according to claim 4, it is characterised in that the spring assembly (29) includes the compression spring of multiple pretensions
(27,28), the compression spring is pressed in a circumferential direction described takes retainer (20；60) kept with the conversion
Frame (15；55) between.
6. freewheel according to claim 5, it is characterised in that the conversion retainer (15；55) there is projection (25), it is described
Projection is embedded into described take in retainer (20).
7. freewheel according to claim 4, it is characterised in that the spring assembly (69) includes the flexural spring of a pretension,
The flexural spring takes retainer (20 described in being pressed in opposite circumferential direction；60) retainer (15 is changed with described；
55) between.
8. according to the freewheel of Claims 2 or 3, it is characterised in that the freewheel (4；44) it is embodied as with jamming roller
(10) jamming roller freewheel, the jamming roller can be clamped in a freewheel inner ring (5) and a freewheel outer ring (8) it
Between.
9. drivetrain, it has the freewheel (4 according to any one of claim 1 to 8；44).
10. speed changer, it has the freewheel (4 according to any one of claim 1 to 8；44).
11. engine, it has the freewheel (4 according to any one of claim 1 to 8；44).
12. drawing device transmission mechanism, it has the freewheel (4 according to any one of claim 1 to 8；44).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012216721 | 2012-09-19 | ||
| DE102012216721.8 | 2012-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671623A CN103671623A (en) | 2014-03-26 |
| CN103671623B true CN103671623B (en) | 2018-02-13 |
Family
ID=50181915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310424829.XA Expired - Fee Related CN103671623B (en) | 2012-09-19 | 2013-09-17 | Free wheel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103671623B (en) |
| DE (1) | DE102013216882A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014111956A1 (en) * | 2014-08-21 | 2016-03-10 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Adjustment device for a disc brake and disc brake with such an adjusting device |
| DE102020103890B4 (en) | 2020-02-14 | 2021-12-23 | Schaeffler Technologies AG & Co. KG | Electric machine, method for controlling an electric machine and rotor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118203U (en) * | 1992-02-01 | 1992-10-07 | 邓林越 | Damping noise reducing flywheel |
| DE10148961A1 (en) * | 2000-10-12 | 2002-04-18 | Luk Lamellen & Kupplungsbau | Transmission system between the engine output shaft of a motor vehicle and an electric machine incorporates transmission stages which are switchable by at least one belt freewheeling unit |
| DE10233769A1 (en) * | 2001-08-06 | 2003-03-27 | Luk Lamellen & Kupplungsbau | Operating motor vehicle, especially with electronic clutch management and/or automated shift control, involves providing at least one breaking point, e.g. in rapid connection coupling |
| CN2830771Y (en) * | 2005-09-16 | 2006-10-25 | 杨升 | Clutch driven disk of stageless speed variable one-way inverted roller bearing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101369836B1 (en) * | 2009-11-19 | 2014-03-05 | 마그나 파워트레인 인크. | Engine starting system with one-way clutch |
-
2013
- 2013-08-26 DE DE201310216882 patent/DE102013216882A1/en not_active Withdrawn
- 2013-09-17 CN CN201310424829.XA patent/CN103671623B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2118203U (en) * | 1992-02-01 | 1992-10-07 | 邓林越 | Damping noise reducing flywheel |
| DE10148961A1 (en) * | 2000-10-12 | 2002-04-18 | Luk Lamellen & Kupplungsbau | Transmission system between the engine output shaft of a motor vehicle and an electric machine incorporates transmission stages which are switchable by at least one belt freewheeling unit |
| DE10233769A1 (en) * | 2001-08-06 | 2003-03-27 | Luk Lamellen & Kupplungsbau | Operating motor vehicle, especially with electronic clutch management and/or automated shift control, involves providing at least one breaking point, e.g. in rapid connection coupling |
| CN2830771Y (en) * | 2005-09-16 | 2006-10-25 | 杨升 | Clutch driven disk of stageless speed variable one-way inverted roller bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671623A (en) | 2014-03-26 |
| DE102013216882A1 (en) | 2014-03-20 |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 |