CN206036067U - Wedge type one -way clutch - Google Patents
Wedge type one -way clutch Download PDFInfo
- Publication number
- CN206036067U CN206036067U CN201621021247.2U CN201621021247U CN206036067U CN 206036067 U CN206036067 U CN 206036067U CN 201621021247 U CN201621021247 U CN 201621021247U CN 206036067 U CN206036067 U CN 206036067U
- Authority
- CN
- China
- Prior art keywords
- star
- wheel
- voussoir
- gear
- drive gear
- 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.)
- Withdrawn - After Issue
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- Mechanical Operated Clutches (AREA)
Abstract
The novel wedge type one -way clutch that relates to of this industry. Star gear hole surface is the smooth cylindrical face, and the drive gear in the driving gear set spare sets up in the star gear hole drive gear peripheral surface smooth cylindrical face, a plurality of voussoir sets up between star gear hole and drive gear periphery, and a plurality of voussoir is closely arranged at the circumferencial direction and is enclosed into the round, it is the inclined plane in the grooving of voussoir outer end, grooving bottom surface all to be equipped with an open position on every voussoir to the grooving bottom surface incline direction of whole voussoirs is the same, the elastic ring setting -in is in the grooving of the voussoir of enclose round, and the elastic ring has the inward power of tightening up to the voussoir of enclose round, and under the effect of the elastic ring power of tightening up, voussoir outer end wedging star gear hole is surperficial, the inner wedging drive gear peripheral surface of voussoir. The utility model discloses compact structure, design benefit, small, light in weight, transmission power is big, the machining precision is high, can make one way clutch have more steady job performance, higher reliability and longer.
Description
Technical field
This utility model is related to a kind of unidirectional delivery torque, the automobile starting motor one-way clutch for reversely skidding, tool
Say it is a kind of free wheeling sprag clutch body, belong to mechanical transmission component technical field.
Background technology
With the continuous development of automotive engineering, auto parts and components it is also proposed with higher requirement.At present, both at home and abroad in vapour
Have in terms of car energy-conservation and discharge it is new want summation function, it one of is exactly that this motor is for a class such as to play a power failure machine
On the automobile of new energy-saving and emission-reducing, this kind of automobile in temporary parking, electromotor auto extinguishing, as long as open out, electromotor
Just start again, so as to reach the function of energy-saving and emission-reducing.This kind of automobile is due to needing Fraquent start, so the longevity to starting motor
Life is put forward higher requirement.Typically require the service life of 25-30 ten thousand times at home, it is external it is ultimate attainment require to reach 500,000 times,
And as start motor on critical piece one-way clutch life-span directly influence start motor service life.It is existing
The general starting motor service life of row is only 3-5 ten thousand times, and the service life for playing power failure machine requires the 10-20 for being existing motor
Times.Therefore, the engagement type one-way clutch of roller for using on existing starting motor is difficult to have met the service life of power failure machine will
Ask.
For having met the use requirement of power failure machine, applicant carried out labor, by it is engagement type to roller it is unidirectional from
The failure analysis of clutch finds that the main of this one-way clutch wants failure mode to be the engagement spring failure of roller and then cause list
Fail to clutch.
The content of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of sprag type one-way clutch
Device, its compact conformation design ingenious, and small volume, lightweight, transmission power are big, machining accuracy is high, have can one-way clutch
More stable service behaviour, higher reliability and longer service life, and efficiency of assembling is high, low production cost.
According to the technical scheme that this utility model is provided：Free wheeling sprag clutch, it is characterised in that：Including star-wheel, wedge
Block, elastic ring and drive gear assemblies, the star-wheel for start motor shaft be connected, with input torque；The star-wheel endoporus
Surface is smooth, cylindrical peripheral surface；The drive gear assemblies include drive gear, and the drive gear is arranged in star-wheel endoporus, drive
Moving gear outer surface smooth, cylindrical peripheral surface；Several voussoirs are arranged between star-wheel endoporus and drive gear periphery, several wedges
Block forms a circle in circumferencial direction close-packed arrays；Grooving of the opening positioned at voussoir outer end is equipped with each voussoir, it is described
Grooving bottom surface is inclined plane, and the grooving inclined bottom surface direction of whole voussoirs is identical；The elastic ring is inlaid in and forms a circle
Voussoir grooving in, elastic ring has inside tightening force to the voussoir for forming a circle, in the presence of elastic ring tightening force,
Voussoir outer end wedging star-wheel bore area, voussoir the inner wedging drive gear outer surface.
As further improvement of the utility model, between the star-wheel and starting motor shaft, gear reduced drive shape is adopted
Formula connects, and the star-wheel outer peripheral face is provided with external gear teeth, is provided with driving gear on the starting motor shaft, the driving gear with
The external gear teeth engagement of star-wheel outer peripheral face.
As further improvement of the utility model, shape is driven using planetary reduction gear between the star-wheel and starting motor shaft
Formula connects, and the star-wheel outer peripheral face is provided with spline, and the starting motor shaft is connected with ring gear, and the star-wheel is arranged and is coaxially disposed
At ring gear center, several uniform planetary gears around star-wheel, the planet tooth between ring gear and star-wheel, is provided with
Wheel outside is engaged with ring gear, the spline engagement on the inside of planetary gear with star-wheel outer peripheral face.
Used as further improvement of the utility model, the spline of the star-wheel outer peripheral face is involute spline.
Used as further improvement of the utility model, the drive gear center is provided with through hole, on the inwall of through hole left end
It is provided with internal spline；In the driving, wheel assembly also includes gear shaft, spring, door and snap ring, and the axle portion of the gear shaft is installed
In the through hole at drive gear center, the axle portion right-hand member is provided with external splines, and the external splines is meshed with internal spline, the gear
Lid is fixed on axle portion left end by snap ring, and the spring is sleeved on axle portion left end and on the right side of door, spring left end and door
Offset, spring right-hand member is offseted with drive gear.
Used as further improvement of the utility model, the one-way clutch also includes dust cap, and the dust cap is installed
At the voussoir loading port of star-wheel endoporus one end, dust cap and star-wheel secure bond, dust cap endoporus and drive gear periphery it
Between be provided with axle sleeve；Axle sleeve is also equipped between the star-wheel endoporus other end and drive gear outer surface.
Used as further improvement of the utility model, the drive gear assemblies also include bearing, and two pieces bearing is propped up respectively
Hold the two ends of drive gear.
Used as further improvement of the utility model, the outer surface of described drive gear one end is set to smooth cylindrical
Face, the end are arranged in star-wheel endoporus；The drive gear other end is provided with external gear teeth.
Used as further improvement of the utility model, the voussoir work surface adopts log spiral work surface, voussoir work
The face that voussoir is engaged with star-wheel bore area, drive gear outer surface is referred to as face.
Used as further improvement of the utility model, the elastic ring adopts elastic steel traveler.
This utility model compared with prior art, has the advantage that：
1）, this utility model employ voussoir engagement design, replace traditional roller joint element, voussoir work with voussoir
Make face using log spiral work surface, the angle of wedge can be kept invariable, the impact of not frayed and foozle, therefore can make from
Clutch has stable service behaviour and high reliability and service life.
2）, and the star-wheel bore area that is engaged of voussoir outer end and the drive gear periphery being engaged with voussoir the inner
Surface is smooth, cylindrical peripheral surface, does not have the complex-curved of traditional roller curve-surface cavity mesh form, reduces manufacture difficulty, plus
Work precision further can be improved.
3）, several voussoirs form a circle by the angle close-packed arrays of setting in circumferencial direction, cancel single engagement spring
Use, but the voussoir for forming a circle is fixed together with an elastic ring, one-way clutch is from wedging state to disengagement
During state, the corner of voussoir is very little, and the activity of elastic ring is also very little, the use longevity of elastic ring in the state of small deformation
Life will be greatly improved, so as to ensure that the service life of one-way clutch.
4）, the compact arranged mode of several voussoirs can increase the voussoir quantity in unit space, and then make voussoir
Effective contact length increase, the ability of transmitting torque also increases, can reduce the design volume of one-way clutch, make one-way clutch
Device more compact structure, the design for starting motor provide space.
5）, the voussoir in this utility model can be made using cold drawing molding technique, efficiency high, processing technique simply may be used
Lean on.
Description of the drawings
Structural representations of the Fig. 1 for this utility model embodiment 1.
Fig. 2 is the A-A in Fig. 1 to sectional view.
Structural representations of the Fig. 3 for this utility model embodiment 2.
Fig. 4 is the B-B direction sectional view in Fig. 3.
Specific embodiment
With reference to concrete drawings and Examples, the utility model is described in further detail.
Embodiment 1
As shown in Figure 1 and Figure 2, the free wheeling sprag clutch in embodiment 1 is mainly by star-wheel 1, voussoir 2, elastic ring 3, drive
Moving gear 4, gear shaft 5, bearing 6, spring 7, door 8, snap ring 9, axle sleeve 10 and dust cap 11 etc. are constituted.
As shown in Figure 1 and Figure 2, the star-wheel 1 for start motor shaft be connected, with input torque.In the present embodiment 1, institute
State star-wheel 1 and start and connected using gear reduced drive form between motor shaft, 1 outer peripheral face of the star-wheel is provided with external gear teeth, institute
State and driving gear is installed on starting motor shaft, the driving gear is engaged with the external gear teeth of 1 outer peripheral face of star-wheel, and star-wheel 1 is thus
The connection transmission realized and start motor shaft.
As shown in Figure 1 and Figure 2,1 bore area of the star-wheel is smooth, cylindrical peripheral surface；The drive gear 4 is arranged on star-wheel 1
In endoporus, 4 outer surface smooth, cylindrical peripheral surface of drive gear；Several voussoirs 2 are arranged on 1 endoporus of star-wheel and 4 periphery of drive gear
Between, several voussoirs 2 form a circle in circumferencial direction close-packed arrays；An opening is equipped with each voussoir 2 positioned at voussoir 2
The grooving 4a of outer end, the grooving 4a bottom surfaces are inclined plane, and the grooving 4a inclined bottom surfaces direction of whole voussoirs 2 is identical；Institute
State elastic ring 3 to be inlaid in the grooving 4a of the voussoir 2 for forming a circle, the voussoir 2 that elastic ring 3 pairs forms a circle has inside receipts
Clamp force, in the presence of 3 tightening force of elastic ring, 2 outer end wedging star-wheel of voussoir, 1 bore area, 2 inner wedging drive gear of voussoir
4 outer surfaces.
As shown in Figure 1 and Figure 2, in the present embodiment 1,4 center of the drive gear is provided with through hole, on the inwall of through hole left end
It is provided with internal spline；The axle portion of the gear shaft 5 is installed in the through hole at 4 center of drive gear, and the axle portion right-hand member is provided with outer flower
Key, the external splines are meshed with internal spline, and the door 8 is fixed on axle portion left end by snap ring 9, and the spring 7 is sleeved on
Axle portion left end is simultaneously located on the right side of door 8, and 7 left end of spring is offseted with door 8, and 7 right-hand member of spring is offseted with drive gear 4.Two pieces axle
Hold 6 two ends for supporting drive gear 4 respectively.
As shown in Figure 1 and Figure 2, in the present embodiment 1, the dust cap 11 is arranged on the voussoir 2 of 1 endoporus one end of star-wheel and loads
Mouthful place, dust cap 11 and 1 secure bond of star-wheel, 11 endoporus of dust cap and drive gear are provided with axle sleeve 10 between 4 periphery；The star
Take turns axle sleeve 10 is also equipped between 4 outer surface of the 1 endoporus other end and drive gear.
In the present embodiment 1,2 work surface of the voussoir adopts log spiral work surface, 2 work surface of voussoir to refer to voussoir 2
The face being engaged with 1 bore area of star-wheel, 4 outer surface of drive gear.The elastic ring 3 adopts elastic steel traveler.
The operation principle of the present embodiment 1 is as follows：
During work, in the presence of motor electromagnetic switch is started, one-way clutch reach makes the tooth in drive gear assemblies
Wheel shaft 5 is engaged with engine ring gear.Starting the driving gear on motor shaft drives star-wheel 1 to rotate, and the rotation for starting motor is turned round
Square passes to star-wheel 1, and star-wheel 1 passes through 2 wedging drive gear 4 of voussoir, so as to the rotation torque for starting motor is passed to driving
Gear assembly, drive gear assemblies drive engine ring gear to rotate again, reach the purpose for starting electromotor.After electromotor is started,
Under the influence of gear ratio, when the rotating speed of drive gear assemblies is higher than motor speed, voussoir 2 disengages wedging automatically, realizes
One-way clutch surmounts performance.Simultaneously start motor after the engine is started up can power-off, one-way clutch in back-moving spring 7 or
Return in the presence of starting motor shifting fork spring 7, the gear shaft 5 in drive gear assemblies is disengaged from engine ring gear,
Start the overall process that motor just completes one push start clutch.
Embodiment 2
As shown in Figure 3, Figure 4, the free wheeling sprag clutch in embodiment 1 is mainly by star-wheel 1, voussoir 2,3 and of elastic ring
Drive gear 4 is constituted.
As shown in Figure 3, Figure 4, the star-wheel 1 for start motor shaft be connected, with input torque.In the present embodiment 2, institute
State star-wheel 1 and start and connected using planetary reduction gear type of belt drive between motor shaft, 1 outer peripheral face of the star-wheel is provided with spline, described
Start motor shaft and be connected with ring gear, the star-wheel 1 is arranged and is co-axially located at ring gear center, sets between ring gear and star-wheel 1
Several uniform planetary gears around star-wheel 1 are equipped with, are engaged with ring gear on the outside of the planetary gear, on the inside of planetary gear
With the spline engagement of 1 outer peripheral face of star-wheel.The spline of 1 outer peripheral face of the star-wheel is involute spline.
As shown in Figure 3, Figure 4, in the present embodiment 2, the outer surface of 4 one end of the drive gear is set to smooth cylindrical
Face, the end are arranged in 1 endoporus of star-wheel；4 other end of drive gear is provided with external gear teeth.
In the present embodiment 2,2 work surface of the voussoir adopts log spiral work surface.The elastic ring 3 adopts Elastic Steel
Wire ring.
The operation principle of the present embodiment 2 is as follows：
During work, in the presence of motor electromagnetic switch is started, one-way clutch reach makes drive gear 4 and electromotor
Ring gear is engaged.Starting the driving gear on motor shaft drives star-wheel 1 to rotate, and the rotation torque for starting motor is passed to star-wheel 1,
Star-wheel 1 passes through 2 wedging drive gear 4 of voussoir, so as to the rotation torque for starting motor is passed to drive gear 4, drive gear 4
Drive engine ring gear to rotate again, reach the purpose for starting electromotor.After electromotor is started, under the influence of gear ratio, when
When the rotating speed of drive gear 4 is higher than motor speed, voussoir 2 disengages wedging automatically, and that realizes one-way clutch surmounts performance.Simultaneously
Start motor after the engine is started up can power-off, one-way clutch is in back-moving spring 7 or in the presence of starting motor shifting fork spring 7
Return, the gear shaft 5 in drive gear 4 is disengaged from engine ring gear, start motor and just complete one push start clutch
Overall process.
Small volume, it is lightweight, transmission power it is big, machining accuracy is high, the purpose of long service life.And efficiency of assembling height, matter
Amount is stable, low production cost.
Claims (10)
1. free wheeling sprag clutch, it is characterised in that：Including star-wheel（1）, voussoir（2）, elastic ring（3）And drive gear set
Part, the star-wheel（1）For being connected with starting motor shaft, with input torque；The star-wheel（1）Bore area is smooth cylindrical
Face；The drive gear assemblies include drive gear（4）, the drive gear（4）It is arranged on star-wheel（1）In endoporus, sliding tooth
Wheel（4）Outer surface smooth, cylindrical peripheral surface；Several voussoirs（2）It is arranged on star-wheel（1）Endoporus and drive gear（4）Between periphery,
Several voussoirs（2）Form a circle in circumferencial direction close-packed arrays；Each voussoir（2）On be equipped with an opening positioned at voussoir
（2）The grooving of outer end（4a）, the grooving（4a）Bottom surface is inclined plane, and all voussoirs（2）Grooving（4a）Inclined bottom surface
Direction is identical；The elastic ring（3）It is inlaid in the voussoir for forming a circle（2）Grooving（4a）It is interior, elastic ring（3）To forming a circle
Voussoir（2）With inside tightening force, in elastic ring（3）In the presence of tightening force, voussoir（2）Outer end wedging star-wheel（1）It is interior
Hole surface, voussoir（2）Inner wedging drive gear（4）Outer surface.
2. free wheeling sprag clutch as claimed in claim 1, it is characterised in that：The star-wheel（1）With start motor shaft it
Between using gear reduced drive form connect, the star-wheel（1）Outer peripheral face is provided with external gear teeth, is provided with the starting motor shaft
Driving gear, the driving gear and star-wheel（1）The external gear teeth engagement of outer peripheral face.
3. free wheeling sprag clutch as claimed in claim 1, it is characterised in that：The star-wheel（1）With start motor shaft it
Between using planetary reduction gear type of belt drive connect, the star-wheel（1）Outer peripheral face is provided with spline, and the starting motor shaft is connected with internal tooth
Circle, the star-wheel（1）Setting is co-axially located at ring gear center, ring gear and star-wheel（1）Between be provided with several in star-wheel
（1）Around uniform planetary gear, engage with ring gear on the outside of the planetary gear, on the inside of planetary gear and star-wheel（1）Periphery
The spline engagement in face.
4. free wheeling sprag clutch as claimed in claim 3, it is characterised in that：The star-wheel（1）The spline of outer peripheral face is
Involute spline.
5. free wheeling sprag clutch as claimed in claim 1, it is characterised in that：The drive gear（4）Center is provided with logical
Hole, the inwall of through hole left end are provided with internal spline；In the driving, wheel assembly also includes gear shaft（5）, spring（7）, door（8）
And snap ring（9）, the gear shaft（5）Axle portion be installed on drive gear（4）In the through hole at center, the axle portion right-hand member is provided with outer
Spline, the external splines are meshed with internal spline, the door（8）By snap ring（9）It is fixed on axle portion left end, the spring
（7）It is sleeved on axle portion left end and is located at door（8）Right side, spring（7）Left end and door（8）Offset, spring（7）Right-hand member and driving
Gear（4）Offset.
6. free wheeling sprag clutch as claimed in claim 5, it is characterised in that：The one-way clutch also includes dust cap
（11）, the dust cap（11）Installed in star-wheel（1）The voussoir of endoporus one end（2）At loading port, dust cap（11）With star-wheel（1）
Secure bond, dust cap（11）Endoporus and drive gear（4）Axle sleeve is provided between periphery（10）；The star-wheel（1）Endoporus is another
End and drive gear（4）Axle sleeve is also equipped between outer surface（10）.
7. free wheeling sprag clutch as claimed in claim 5, it is characterised in that：The drive gear assemblies also include bearing
（6）, two pieces bearing（6）Drive gear is supported respectively（4）Two ends.
8. free wheeling sprag clutch as claimed in claim 1, it is characterised in that：The drive gear（4）The periphery of one end
Surface is set to smooth, cylindrical peripheral surface, and the end is arranged on star-wheel（1）In endoporus；Drive gear（4）The other end is provided with external gear teeth.
9. free wheeling sprag clutch as claimed in claim 1, it is characterised in that：The voussoir（2）Work surface adopts logarithm
Helix work surface, voussoir（2）Work surface refers to voussoir（2）With star-wheel（1）Bore area, drive gear（4）Outer surface connects
Touch the face for coordinating.
10. free wheeling sprag clutch as claimed in claim 1, it is characterised in that：The elastic ring（3）Using elastic wire
Circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021247.2U CN206036067U (en) | 2016-08-31 | 2016-08-31 | Wedge type one -way clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621021247.2U CN206036067U (en) | 2016-08-31 | 2016-08-31 | Wedge type one -way clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206036067U true CN206036067U (en) | 2017-03-22 |
Family
ID=58300755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621021247.2U Withdrawn - After Issue CN206036067U (en) | 2016-08-31 | 2016-08-31 | Wedge type one -way clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206036067U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122310A (en) * | 2016-08-31 | 2016-11-16 | 无锡市神力齿轮冷挤有限公司 | Free wheeling sprag clutch |
| CN108581947A (en) * | 2018-04-03 | 2018-09-28 | 张薇 | A kind of environmentally protective construction and decoration antirust installation equipment |
-
2016
- 2016-08-31 CN CN201621021247.2U patent/CN206036067U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106122310A (en) * | 2016-08-31 | 2016-11-16 | 无锡市神力齿轮冷挤有限公司 | Free wheeling sprag clutch |
| CN106122310B (en) * | 2016-08-31 | 2019-02-19 | 无锡市神力齿轮冷挤有限公司 | Free wheeling sprag clutch |
| CN108581947A (en) * | 2018-04-03 | 2018-09-28 | 张薇 | A kind of environmentally protective construction and decoration antirust installation equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170322 Effective date of abandoning: 20190219 |
|
| AV01 | Patent right actively abandoned |