CN206545658U - High pulling torque one-way belt roller of automobile generator - Google Patents
High pulling torque one-way belt roller of automobile generator Download PDFInfo
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- CN206545658U CN206545658U CN201720152363.6U CN201720152363U CN206545658U CN 206545658 U CN206545658 U CN 206545658U CN 201720152363 U CN201720152363 U CN 201720152363U CN 206545658 U CN206545658 U CN 206545658U
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- unidirectional
- roller
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- wedge surface
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- 230000000977 initiatory effect Effects 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
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Abstract
A kind of high pulling torque one-way belt roller of automobile generator, left axle bearing bore is provided with the endoporus of belt hub, unidirectional wedge groove and left axle bearing bore, unidirectional wedge groove is by basic circle section, curved wedge surface and limit arc section composition, the radius of curved wedge surface is 8~10 times of the diameter of unidirectional roller, the initiating terminal of curved wedge surface and basic circle section are tangent, the clearing end of curved wedge surface and limit arc section are tangent, the lock corner of one-way clutch mechanism is 3 °~10 °, the depth capacity of curved wedge surface is 0.5~1.2 millimeter, due to unidirectional wedge groove is arranged in the endoporus of belt hub, stress radius increases unidirectional roller in the course of the work, improve the ultimate torque to clutch structure in one-way belt roller of automobile generator, unidirectional wedge groove is designed to that whole arc orbit can ensure that the lock corner of unidirectional roller in the process of running is constant, reduce frictional force of the unidirectional roller to monodirectional locking track in running, so as to improve the service life of one-way clutch mechanism.
Description
Technical field
The utility model is related to the conveyer with endless flexible element conveying rotary motion, more particularly to a kind of automobile hair
Motor one-way belt roller.
Background technology
Power supply is provided by automobile current generator needed for automobile electric control system, and automobile current generator is driven by automobile engine
, the power output shaft of engine drives automobile current generator by V belt translation, because the running speed of engine is a variable, root
Required according to automobile electrically-controlled, the output voltage undulate quantity of generator is the smaller the better, and the fluctuation of speed of generator directly influences output
Voltage levels, and the rotating speed of engine can be continually changing with driving requirements, therefore will be with by the generator speed of driven by engine
Fluctuation, in order to reduce influence of the output speed fluctuation to the output voltage of generator during automobile engine traveling, in
A kind of single-way belt pulley of automobile generator is disclosed in state's patent 200710160269.6 preferably to solve the above problems, this
Single-way belt pulley of automobile generator includes belt hub, positive camber core wheel, two bearings, axle sleeve, roller, flat spring and protection
Lid, detailed technical scheme is disclosed in the patent literature.
Although above-mentioned patent formula can reduce output of the output speed fluctuation to generator during automobile engine traveling
The influence of voltage, but following shortcoming is still deposited in actual use：
Under the conditions of pulley outer diameter is not increased, the ultimate torque that the one-way clutch mechanism in it can be carried is less than normal, table
It is now that the multiple projections for being distributed in positive camber core wheel outer wall are easily snapped off under speed rapidly state, the service life of belt pulley is difficult
To ensure.It is made up of simultaneously as locking track between roller and axle sleeve inclined-plane with arc surface, when roller is along inclined-plane to circle
During cambered surface progressively moves forward, the lock corner of roller constantly increases so that the friction between roller and track constantly increases, and accelerates
Abrasion between roller and locking track, the lock corner of roller is a variable in the process, and the coupling mechanism force of roller is also therewith
Change, does not meet the constant design requirement of roller lock corner, and this is one of the reason for causing one-way clutch mechanism premature failure.
With the continuous upgrading of automobile class, automotive electronics, control panel are continuously increased, and automobile current generator also must be therewith
Increase.Namely mean that the limit driving torque of generator one-way belt roller will increase, the torsion from engine crankshaft
Vibration is delivered on accessory drive system naturally, and the extreme rotational inertia that generator is born is bigger, using prior art
Need to increase the physical dimension of generator, the light-weight design requirement of the energy-saving material-saving of automobile is not met so, in order to reduce hair
Influence of the non-homogeneous rotation of motivation bent axle to generator, improves the service life of generator one-way belt roller, it is necessary to upper
Prior art is stated to be improved.
Utility model content
The utility model provides a kind of high pulling torque one-way belt roller of automobile generator, and it can not increase belt pulley
Under the conditions of physical dimension, one-way belt roller of automobile generator ultimate torque can be increased, one-way clutch mechanism is eliminated specified
The limit loads with lower accidental damage, it is ensured that the service life of belt pulley.
The technical scheme that the utility model is taken is as follows：
A kind of high pulling torque one-way belt roller of automobile generator, including belt hub, mandrel, the dynamic bearing that rolls left, right rolling
Dynamic bearing, unidirectional roller, retainer and back-moving spring, roll left dynamic bearing and right rolling bearing is separately mounted to the interior of belt hub
Hole and mandrel it is cylindrical between, unidirectional roller by retainer and back-moving spring be arranged on belt hub endoporus and mandrel it is outer
Between circle, and unidirectional roller is in and rolled left between dynamic bearing and right rolling bearing, it is characterized in that：The mandrel it is cylindrical by left axle
Footpath section, medium axle diameter section and right axle footpath section composition, left axle footpath section are used for installation and rolled left dynamic bearing, and right axle footpath section is for installing right rolling
Dynamic bearing, medium axle diameter section is used for the combination for installing unidirectional roller, retainer and back-moving spring；In the endoporus of belt hub
Provided with left axle bearing bore, unidirectional wedge groove and right axle bearing bore, unidirectional wedge groove is located between left axle bearing bore and right axle bearing bore, unidirectional wedge groove etc.
Compartment of terrain is distributed on inner periphery, and unidirectional wedge groove is made up of basic circle section, curved wedge surface and limit arc section, and the radius of basic circle section is
R1, the radius of curved wedge surface is R2, and the radius of limit arc section is R3, and the exradius of the medium axle diameter section of mandrel is R4, single
It is R5 to the radius of roller, the radius of limit arc section is equal with unidirectional roller radius, i.e. R3=R5, the radius of curved wedge surface is
8~10 times of unidirectional roller diameter, i.e. R2=16-20R5, initiating terminal and basic circle section tangent, the end of curved wedge surface of curved wedge surface
Not-go-end and limit arc section are tangent, and the lock corner β of one-way clutch mechanism is the angle of following two lines, and first is arc
Wedge surface and the contact point of unidirectional roller and the line at unidirectional roller center, Article 2 is unidirectional roller center and the center of mandrel
Line, lock corner β=3 °~10 ° of one-way clutch mechanism, the depth capacity of curved wedge surface is 0.5~1.2 millimeter, basic circle section
Radius is less than the diameter sum of the exradius and unidirectional roller of the medium axle diameter section of mandrel, R1 ＜ R4+2R5.
Further, the radius of curved wedge surface is 8 times of unidirectional roller radius, i.e. R2=8R5, the locking of one-way clutch mechanism
Angle beta is 3 °.
Further, the radius of curved wedge surface is 9 times of unidirectional roller radius, i.e. R2=9R5, the locking of one-way clutch mechanism
Angle beta is 8 °.
Further, the radius of curved wedge surface is 10 times of unidirectional roller radius, i.e. R2=10R5, the lock of one-way clutch mechanism
Tight angle beta is 10 °.
Do not changing the premise of one-way belt roller of automobile generator middle belt pulley hub, mandrel and unidirectional roller diameter
Under, by improving clutch structure, unidirectional wedge groove is arranged in the endoporus of belt hub, and unidirectional wedge groove is designed to basic circle
Three sections of section, curved wedge surface and limit arc section, the radius of basic circle section is R1, and the radius of curved wedge surface is R2, limit arc section
Radius is R3, and the exradius of the medium axle diameter section of mandrel is R4, and the radius of unidirectional roller is R5, the radius R3 of limit arc section
Equal with the radius R5 of unidirectional roller, the radius R2 of curved wedge surface is 8~10 times of unidirectional roller diameter, the starting of curved wedge surface
End is section tangent with basic circle, and the clearing end and limit arc section of curved wedge surface are tangent, and lock corner β=3 ° of one-way clutch mechanism~
10 °, the depth capacity of curved wedge surface is 0.5~1.2 millimeter, and the radius of basic circle section is less than the exradius of mandrel medium axle diameter section
Plus the diameter of unidirectional roller.So, unidirectional roller is in the course of the work under by equal limit loading conditions, due to stress
Face is in the curved wedge surface of unidirectional wedge groove, and the radius of stress point is more than prior art, improves to automobile current generator one-way clutch
The ultimate torque of clutch structure, is tested by ultimate torque in belt pulley, using this programme, and ultimate torque can improve 20%~
22%, easily snapped off while eliminating and being arranged on the projection of positive camber core wheel outer wall in the prior art under speed rapidly state
Defect.Unidirectional wedge groove is designed to that whole arc orbit can ensure that the lock corner of unidirectional roller in the process of running is constant, eliminated
It is that lock corner is continually changing and causes not tight or coupling mechanism force excessive that unidirectional roller is run on incline track in the prior art
Problem, reduces the frictional force of unidirectional roller in running to monodirectional locking track, so as to improve the use of one-way clutch mechanism
Life-span.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the A-A sectional views in Fig. 1；
The partial enlarged drawing that Fig. 3 is I in Fig. 2；
Fig. 4 is the structural representation of belt hub；
Fig. 5 is the structural representation for the unidirectional wedge groove being arranged on belt hub inner hole wall；
Fig. 6 is the structural representation of mandrel；
In figure：1- belt hubs；2- mandrels；3- rolls left dynamic bearing；The right rolling bearings of 4-；The unidirectional rollers of 5-；6- retainers；
7- back-moving springs；8- curved wedge surfaces and the contact point of unidirectional roller and the line at unidirectional roller center；The unidirectional roller centers of 9- with
The line at the center of mandrel；11- left axle bearing bore；The unidirectional wedge grooves of 12-；13- right axle bearing bore；121- basic circles section；122- curved wedge surfaces；
123- limit arc sections；21- left axles footpath section；22- medium axle diameters section；23- right axles footpath section；The radius of R1- basic circles section；R2- arcs
The radius of wedge surface；The radius of R3- limit arc sections；The radius of R4- medium axle diameters section；The radius of the unidirectional rollers of R5-；β is unidirectional
The lock corner of clutch.
Embodiment
Brief description of the drawings embodiment of the present utility model is closed below：
Embodiment 1：A kind of high pulling torque one-way belt roller of automobile generator, as shown in Fig. 1~Fig. 6, it includes belt
Wheel hub 1, mandrel 2, the dynamic bearing 3 that rolls left, right rolling bearing 4, unidirectional roller 5, retainer 6 and back-moving spring 7, roll left dynamic bearing 3
And right rolling bearing 4 be separately mounted to the endoporus of belt hub 1 and mandrel 2 it is cylindrical between, unidirectional roller 5 passes through retainer 6
And back-moving spring 7 is between the endoporus of belt hub 1 and the cylindrical of mandrel 2, and unidirectional roller 5 is in the dynamic bearing 3 that rolls left
Between right rolling bearing 4, the cylindrical of the mandrel 2 is made up of left axle footpath section 21, medium axle diameter section 22 and right axle footpath section 23, left
Diameter of axle section 21 is used for installation and rolled left dynamic bearing 3, and right axle footpath section 23 is used to install right rolling bearing 4, and medium axle diameter section 22 is for pacifying
Fill the combination of unidirectional roller 5, retainer 6 and back-moving spring 7；Provided with left axle bearing bore 11, unidirectional in the endoporus of belt hub 1
Wedge groove 12 and right axle bearing bore 13, unidirectional wedge groove 12 are located between left axle bearing bore 11 and right axle bearing bore 13, and unidirectional wedge groove 12 is at equal intervals
Ground is distributed on inner periphery, and unidirectional 12 points of wedge groove is three sections, i.e. basic circle section 121, curved wedge surface 122 and limit arc section 123, base
The radius of circle section 121 is R1, and the radius of curved wedge surface 122 is R2, and the radius of limit arc section 123 is R3, the jackshaft of mandrel 2
The exradius of footpath section 22 is R4, and the radius of unidirectional roller is R5, the radius of the radius of limit arc section 123 and unidirectional roller 5
Equal, i.e. R3=R5, the radius R2 of curved wedge surface 122 is equal to 8~10 times of the unidirectional diameter of roller 5, i.e. R2=16-20R5, arc
The initiating terminal of shape wedge surface 122 and basic circle section 121 are tangent, and the clearing end and limit arc section 123 of curved wedge surface 122 are tangent, unidirectionally
The lock corner β of clutch is the angle of following two lines, and first is curved wedge surface 122 and the contact point of unidirectional roller 5
With the line 8 at the unidirectional center of roller 5, Article 2 is the line 9 at the unidirectional center of roller 5 and the center of mandrel 2, one-way clutch mechanism
Lock corner β=3 °~10 °, the depth capacity of curved wedge surface 122 is 0.5~1.2 millimeter, and the radius of basic circle section 121 is small for R1
Diameter 2R5, the R1 ＜ R4+2R5 of unidirectional roller 5 are added for R4 in the exradius of the medium axle diameter section 22 of mandrel 2.
Embodiment of the present utility model is a lot, example is not limited to, as long as unidirectional wedge groove is arranged in belt hub 1
On the circumference of hole, and unidirectional wedge groove 12 is made up of basic circle section 121, curved wedge surface 122 and limit arc section 123 so that unidirectional roller 5
The constant all technical schemes of lock corner are belonged within protection domain of the present utility model in the process of running.
Claims (4)
1. a kind of high pulling torque one-way belt roller of automobile generator, including belt hub (1), mandrel (2), roll left dynamic bearing
(3), right rolling bearing (4), unidirectional roller (5), retainer (6) and back-moving spring (7), the dynamic bearing that rolls left (3) and the right axis of rolling
Hold (4) be separately mounted to the endoporus of belt hub (1) and mandrel (2) it is cylindrical between, unidirectional roller (5) passes through retainer (6)
And back-moving spring (7) is between the endoporus of belt hub (1) and the cylindrical of mandrel (2), and unidirectional roller (5) is in and rolled left
Between dynamic bearing (3) and right rolling bearing (4), it is characterized in that：The mandrel (2) it is cylindrical by left axle footpath section (21), jackshaft
Footpath section (22) and right axle footpath section (23) composition, left axle footpath section (21) roll left dynamic bearing (3) for installation, and right axle footpath section (23) is used for
Right rolling bearing (4) is installed, medium axle diameter section (22) is used to install unidirectional roller (5), retainer (6) and back-moving spring (7)
Combination；Left axle bearing bore (11), unidirectional wedge groove (12) and right axle bearing bore (13) are provided with the endoporus of belt hub (1), unidirectionally
Wedge groove (12) is located between left axle bearing bore (11) and right axle bearing bore (13), and unidirectional wedge groove (12) is equally spaced in inner periphery
On, unidirectional wedge groove (12) is made up of basic circle section (121), curved wedge surface (122) and limit arc section (123), basic circle section (121)
Radius is R1, and the radius of curved wedge surface (122) is R2, and the radius of limit arc section (123) is R3, the medium axle diameter of mandrel (2)
The exradius of section (22) is R4, and the radius of unidirectional roller is R5, radius and the unidirectional roller (5) half of limit arc section (123)
Footpath is equal, i.e. R3=R5, and the radius of curved wedge surface (122) is 8~10 times of unidirectional roller (5) diameter, i.e. R2=16-20R5,
The initiating terminal of curved wedge surface (122) and basic circle section (121) are tangent, clearing end and the limit arc section (123) of curved wedge surface (122)
Tangent, the lock corner β of one-way clutch mechanism is the angle of following two lines, and first is curved wedge surface (122) and unidirectional rolling
The contact point of post (5) and the line (8) at unidirectional roller (5) center, Article 2 is in unidirectional roller (5) center and mandrel (2)
The line (9) of the heart, lock corner β=3 °~10 ° of one-way clutch mechanism, the depth capacity of curved wedge surface (122) is 0.5~1.2
Millimeter, the radius of basic circle section (121) is less than the straight of exradius and the unidirectional roller (5) of the medium axle diameter section (22) of mandrel (2)
Footpath sum, R1 ＜ R4+2R5.
2. high pulling torque one-way belt roller of automobile generator according to claim 1, it is characterized in that：Curved wedge surface (122)
Radius be 8 times of unidirectional roller (5) radius, i.e. R2=8R5, the lock corner β of one-way clutch mechanism is 3 °.
3. high pulling torque one-way belt roller of automobile generator according to claim 1, it is characterized in that：Curved wedge surface (122)
Radius be 9 times of unidirectional roller (5) radius, i.e. R2=9R5, the lock corner β of one-way clutch mechanism is 8 °.
4. high pulling torque one-way belt roller of automobile generator according to claim 1, it is characterized in that：Curved wedge surface (122)
Radius be 10 times of unidirectional roller (5) radius, i.e. R2=10R5, the lock corner β of one-way clutch mechanism is 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152363.6U CN206545658U (en) | 2017-02-20 | 2017-02-20 | High pulling torque one-way belt roller of automobile generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152363.6U CN206545658U (en) | 2017-02-20 | 2017-02-20 | High pulling torque one-way belt roller of automobile generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206545658U true CN206545658U (en) | 2017-10-10 |
Family
ID=59995599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720152363.6U Expired - Fee Related CN206545658U (en) | 2017-02-20 | 2017-02-20 | High pulling torque one-way belt roller of automobile generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206545658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691985A (en) * | 2018-08-06 | 2018-10-23 | 江苏南方轴承股份有限公司 | A kind of single-way belt pulley of automobile generator |
-
2017
- 2017-02-20 CN CN201720152363.6U patent/CN206545658U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691985A (en) * | 2018-08-06 | 2018-10-23 | 江苏南方轴承股份有限公司 | A kind of single-way belt pulley of automobile generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171010 |