CN103671623A - Free wheel - Google Patents
Free wheel Download PDFInfo
- Publication number
- CN103671623A CN103671623A CN201310424829.XA CN201310424829A CN103671623A CN 103671623 A CN103671623 A CN 103671623A CN 201310424829 A CN201310424829 A CN 201310424829A CN 103671623 A CN103671623 A CN 103671623A
- Authority
- CN
- China
- Prior art keywords
- freewheel
- retainer
- conversion
- spring
- internal tooth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims description 39
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000036316 preload Effects 0.000 description 12
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
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, this freewheel can be changed by means of operation equipment.The invention still further relates to drivetrain, speed changer, motor or the traction device driving mechanism with this freewheel.
Background technique
By German laid-open document DE10148961A1, become known for the drivetrain of Motor Vehicle, the band freewheel that there is epicyclic transmission mechanism and can change.By the known a kind of flexible automation shift transmission of improved gear shift that has of German laid-open document DE10233769A1.
Summary of the invention
Task of the present invention is, a kind of freewheel is provided, even if this freewheel can also have long working life in the situation that transmit relatively large torque by means of operation equipment conversion and this freewheel.
For a kind of can be by means of the freewheel of operation equipment conversion, the solution of this task is, the elastic mechanism that described operation equipment and is connected in before described freewheel combines, this elastic mechanism allows relative movement with balanced load when high capacity.By this, be connected in elastic mechanism above, even against clamping direction ground preselected operation device in the situation that, also can make the parts of freewheel, especially the load of preload spring and jamming roller keeps littlely.
One preferred embodiment of this freewheel is characterised in that, this elastic mechanism being connected in before freewheel has pre-fastening moment, and when to an idle running direction conversion, this pre-fastening moment allows to take retainer and changes the relative movement between retainer.By taking the relative movement between retainer and conversion retainer, can realize load balance in simple mode.
Another preferred embodiment of this freewheel is characterised in that, described pre-fastening moment designs like this, makes described taking between retainer and described conversion retainer, relative movement not to occur when against described idle running direction conversion.Be also referred to as blocking-up direction or clamping direction with the direction of described idle running direction contrary.Taking retainer and conversion does not have relative movement to make it possible to be transformed into rapidly transmission of torque function from lost motion functionality between retainer.
Another preferred embodiment of this freewheel is characterised in that, when changing to idle running direction, the above takes retainer and described conversion retainer can relative to each other reverse against the pretightening force of at least one spring assembly.Relatively little spring rate by this spring assembly, guarantees in simple mode, and large load is delivered to conversion retainer and the freewheel parts that connect below as preload spring or jamming roller from taking retainer.
Another preferred embodiment of this freewheel is characterised in that, described spring assembly comprises the Compress Spring of a plurality of pre-pressings, and described Compress Spring clamps described taking between retainer and described conversion retainer in a circumferential direction.At this, Compress Spring may be embodied as straight spiral compression spring, and described spiral compression spring is pressed in spring passage.But Compress Spring also may be embodied as the spiral compression spring of prebuckling, the spiral compression spring of described prebuckling is also referred to as semielliptic spring.
Another preferred embodiment of this freewheel is characterised in that, described conversion retainer has projection, described in described projection is embedded into, takes in retainer.Described in being preferably embedded into, the projection of described conversion retainer takes in such region of retainer: Compress Spring is against described region pre-pressing.
Another preferred embodiment of this freewheel is characterised in that, described spring assembly comprises the flexural spring of a pre-pressing, and described flexural spring clamps described taking between retainer and described conversion retainer in contrary circumferential direction.Described flexural spring meets the function identical with described before Compress Spring.For this purpose, these flexural springs for example with the end of axial warpage be embedded into be arranged on described conversion retainer and described in take in the opening on retainer.
Another preferred embodiment of this freewheel is characterised in that, described freewheel is embodied as the jamming roller freewheel with jamming roller, and described jamming roller can clamp between freewheel inner ring and freewheel outer ring.Clamp slope is preferably all arranged on freewheel inner ring in two sense of rotation.Jamming roller is preferably arranged between two preload springs.According to the resultant direction of preload spring, determine, jamming roller can be clamped in and clamp on slope in one or the other direction.
Another preferred embodiment of this freewheel is characterised in that, described in take retainer and there is the first internal tooth portion, in order to change described freewheel, described the first internal tooth portion and the second internal tooth portion coupling being configured on described freewheel inner ring.One in described internal tooth portion is preferably embodied as straight-tooth portion.Another in described internal tooth portion is preferably embodied as helical teeth portion.Two internal tooth quality award from the ministry gatings are crossed the sliding sleeve with outer toothed portion and are intercoupled.Moving axially of sliding sleeve causes taking retainer torsion, causes thus the conversion of freewheel.
The invention still further relates to drivetrain, speed changer, motor or the traction device driving mechanism with foregoing freewheel.Traction device driving mechanism is for example embodied as tape handler or chain drive.According to freewheel of the present invention, can be particularly advantageous for representing convertible epicyclic transmission mechanism.This convertible epicyclic transmission mechanism is preferably integrated in the traction device driving mechanism of internal-combustion engine, especially in tape handler or chain drive.
Accompanying drawing explanation
Other advantages of the present invention, feature and details are learnt by following description, wherein with reference to accompanying drawing, have described different embodiments in detail.Accompanying drawing illustrates:
Fig. 1 passes through the sectional drawing of jamming roller plane according to freewheel of the present invention;
The longitudinal section of the freewheel of Fig. 2 Fig. 1;
The plan view of the freewheel in Fig. 3 Fig. 1 and 2;
The sectional drawing of freewheel in Fig. 4 Fig. 1 to 3 in a plane is furnished with the Compress Spring of pretension in this plane;
In Fig. 5 and Fig. 1 to 4 similarly, according to the longitudinal section of another embodiment's freewheel;
The plan view of the freewheel in Fig. 6 Fig. 5;
The section of the flexural spring that passes through pretension of the freewheel in Fig. 7 Fig. 5 and 6.
Embodiment
In Fig. 1 to 7, with different views and section, the freewheel 4 being integrated with according to two different embodiments is shown; 44 technique device 1; 41.Technique device 1; 41 is for example the parts of traction device dish, especially belt pulley, or belt pulley.Freewheel 4; 44 can advantageously use in the drivetrain of Motor Vehicle, especially in motor car engine or vehicle transmission.
Freewheel 4; 44 comprise freewheel inner ring 5 and freewheel outer ring 8.At technique device 1; Under 41 mounted states, freewheel inner ring 5 is without relative rotation with driving element, be connected as bent axle.
At technique device 1; Under 41 mounted states, freewheel outer ring 8 can be wound around by traction device, as belt or toothed belt.Freewheel outer ring 8 has outer toothed portion 9 at radially outer configuration.Outer toothed portion 9 is for generation of sealed being connected of shape with (unshowned) toothed belt.But outer toothed portion 9 also can be for representing the sun gear of planetary driving device.
Between freewheel inner ring 5 and freewheel outer ring 8, be furnished with in the radial direction eight jamming rollers 10 altogether.These jamming rollers are arranged respectively or are clamped between two preload springs 11,12.Freewheel outer ring 8 has circular inner diameter in inner radial.Freewheel inner ring 5 has the clamping slope of working in two sense of rotation at radially outer.According to the resultant direction of preload spring 11,12, determine, jamming roller 10 clamps on the clamping slope between freewheel inner ring 5 and freewheel outer ring 8 in one or the other direction.
The in service of traditional freewheel, can produce such situation: freewheel also clamps in one direction and regulates in direction by preliminary election at another.When preliminary election, traditional adjusting retainer is reversed, and wherein, real conversion is just carried out when moment direction is reversed.When clamping, rotor reversed one and clamped angle.
When regulating, regulate retainer to reverse an adjusting angle.This adjusting angle and clamping angle have tolerance.In the situation that angle is large, preload spring meeting compacting, thus regulate connection strap or other regions of retainer to be applied in high capacity and fracture.For fear of this situation, adjusting angle must design relatively greatly, and this has limited the possible jamming roller quantity on circumference.The quantity of the jamming roller on circumference has limited again transferable freewheel moment.
According to an important aspect of the present invention, provide a convertible freewheel 4; 44, thus it is in the situation that the quantity of the large as far as possible jamming roller of transferable moment is large as far as possible, even also make preload spring and regulating the load of retainer to keep littlely preliminary election controlling mechanism in the situation that on the contrary with clamping direction.For this purpose, build a kind of convertible freewheel 4; 44, there is the elastic mechanism being connected in before described freewheel.
According to freewheel 4 of the present invention; 44 comprise conversion retainer 15; 55.Conversion retainer 15; 55 also can be described as adjusting retainer.At conversion retainer 15; 55 connect an elastic mechanism above, and this elastic mechanism can allow to change retainer 15 when high capacity; 55 and take retainer 20; Relative movement between 60.By two retainers 15; 50 and 20; Relative movement between 60, can realize load compensation in simple mode.
In the longitudinal section of Fig. 2 and 5, see, between freewheel inner ring 5 and freewheel outer ring 8, be furnished with rolling element 17,18. Rolling element 17,18 is embodied as the double-row angular contact ball bearing of ball and the representative supporting on freewheel inner ring 5 and guiding for freewheel outer ring 8.
Preload spring 11,12 between jamming roller 10 can be converted retainer 15; 55 load from both sides.According to conversion retainer 15; 55 sense of rotation and determine freewheel 4; 44 can be switched in a direction or another direction.
In order to change freewheel 4; 44, taking retainer 20; On 60, be configured with the first internal tooth portion 21; 61.The second internal tooth portion 22; 62 are configured on freewheel inner ring 5.The first internal tooth portion 21; 61 are embodied as straight-tooth portion.The second internal tooth portion 22; 62 are embodied as helical teeth portion.
Alternatively, also can be by the first internal tooth portion 21; 61 are embodied as helical teeth portion and by the second internal tooth portion 22; 62 are embodied as straight-tooth portion.(unshowned) sliding sleeve is for this conversion, and this sliding sleeve is scarfed to two internal tooth portions 21; 22 and 61; In 62.Moving axially of this sliding sleeve causes taking retainer 20; 60 rotatablely moving with respect to freewheel inner ring 5.
In Fig. 2 and 4, see, in conversion, be configured with projection 25 on retainer 15, described projection is embedded into and is configured in the spring coupling regime or spring loading region 26 of taking on retainer 20.Changing the projection 25 of retainer 15 and taking between the spring coupling regime spring loading in other words region 26 of retainer 20, the Compress Spring 27,28 working on conversion direction is pre-compacted.
Compress Spring 27,28 is embodied as the spiral compression spring of prebuckling and is therefore also referred to as semielliptic spring.But Compress Spring 27,28 also may be embodied as straight and is pressed into and is configured in conversion retainer 15 and takes in the spring passage between retainer 20.
Compress Spring 27,28 by such pre-pressing, makes to produce pre-fastening moment in circumferential direction.The pre-fastening moment of design Compress Spring 27,28 like this, makes taking when clamping direction change at freewheel 4 retainer 20 and changes between retainer 15 relative movement does not occur.
When changing against clamping direction, conversion retainer 15 backstops are to jamming roller 10.Further angle under large peripheral operation power is reversed Compress Spring 27,28 elastic compression further that causes pretension.At this, Compress Spring 27,28 has relatively little spring rate, and the load of this spring rate interception on conversion retainer 15, preload spring 11,12 and jamming roller 10 crossed greatly and raise.
At this, Compress Spring 27,28 is spring assemblies 29, by this spring assembly, is provided again aforesaid, is connected in freewheel 4 elastic mechanism 30 above.By elastic mechanism 30, adjusting angle can be assigned to until in the angle of Compress Spring 27,28 elastic compression of the angle of jamming roller backstop and pretension.Can realize the jamming roller of larger amt thus because between jamming roller 10 the raw part that regulates displacement of beard and hair only, and another part is at conversion retainer 15 with take generation between retainer 20.
At the technique device 41 shown in Fig. 5 to 7, comprise and at the similar freewheel 44 of freewheel 4 shown in Fig. 1 to 4.For the identical parts of mark are used identical reference number.Inquire into freewheel 4 below; Difference between 44.
In the freewheel 44 shown in Fig. 5 to 7, a flexural spring 66 is at conversion retainer 55 and take pre-pressing between retainer 60.This flexural spring 66 represents a spring assembly 69 elastic mechanism 70 in other words, and this elastic mechanism works as the spring assembly 29 in freewheel 4 or elastic mechanism 30.
List of reference signs
1 traction device dish
4 freewheels
5 freewheel inner rings
8 freewheel outer rings
9 outer toothed portion
10 jamming rollers
11 preload springs
12 preload springs
15 conversion retainers
17 rolling elements
18 rolling elements
20 take retainer
21 first internal tooth portions
22 second outer toothed portion
25 projections
26 springs load region
27 Compress Springs
28 Compress Springs
29 spring assemblies
30 elastic mechanisms
41 traction device dishes
44 freewheels
55 conversion retainers
60 take retainer
61 first internal tooth portions
62 second internal tooth portions
66 flexural springs
69 spring assemblies
70 elastic mechanisms
71 openings
72 openings
Claims (10)
1. freewheel, this freewheel can be changed by means of operation equipment, it is characterized in that, and described operation equipment and is connected in described freewheel (4; 44) elastic mechanism (30 above; 70) combination, when high capacity, described elastic mechanism allows relative movement to realize load balance.
2. according to the freewheel of claim 1, it is characterized in that, be connected in described freewheel (4; 44) described elastic mechanism (30 above; 70) there is pre-fastening moment, when to an idle running direction conversion, described in described pre-fastening moment can allow, take retainer (20; 60) and described conversion retainer (15; 55) relative movement between.
3. according to the freewheel of claim 2, it is characterized in that, described pre-fastening moment designs like this, makes when against described idle running direction conversion at the described retainer (20 of taking; 60) and described conversion retainer (15; 55) between, there is not relative movement.
4. according to the freewheel of claim 2 or 3, it is characterized in that, take retainer (20 described in when changing to idle running direction; 60) and described conversion retainer (15; 55) can be against at least one spring assembly (29; 69) pretightening force is relative to each other reversed.
5. according to the freewheel of claim 4, it is characterized in that, described spring assembly (29) comprises the Compress Spring (27,28) of a plurality of pretensions, described in described Compress Spring is pressed in a circumferential direction, takes retainer (20; 60) and described conversion retainer (15; 55) between.
6. according to the freewheel of claim 5, it is characterized in that described conversion retainer (15; 55) there is projection (25), described in described projection is embedded into, take in retainer (20).
7. according to the freewheel of claim 4, it is characterized in that, described spring assembly (69) comprises the flexural spring of a pretension, described in described flexural spring is pressed in contrary circumferential direction, takes retainer (20; 60) and described conversion retainer (15; 55) between.
8. according to the freewheel of any one in claim 2 to 7, it is characterized in that described freewheel (4; 44) be embodied as the have jamming roller jamming roller freewheel of (10), described jamming roller can be clamped between a freewheel inner ring (5) and a freewheel outer ring (8).
9. freewheel according to Claim 8, is characterized in that, described in take retainer (20; 60) there is the first internal tooth portion (21; 61), in order to change described freewheel (4; 44), described the first internal tooth portion be configured in one second internal tooth portion (22 on described freewheel inner ring (5); 62) coupling.
10. drivetrain, speed changer, motor or traction device driving mechanism, it has according to the freewheel (4 of any one in aforementioned claim; 44).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012216721.8 | 2012-09-19 | ||
| DE102012216721 | 2012-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103671623A true CN103671623A (en) | 2014-03-26 |
| CN103671623B 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 (5)
| 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 |
| US20120227540A1 (en) * | 2009-11-19 | 2012-09-13 | Magna Powertrain Inc. | 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 (5)
| 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 |
| US20120227540A1 (en) * | 2009-11-19 | 2012-09-13 | Magna Powertrain Inc. | Engine starting system with one-way clutch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103671623B (en) | 2018-02-13 |
| DE102013216882A1 (en) | 2014-03-20 |
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Legal Events
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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 |