CN206545657U - Assembled one-way belt roller of automobile generator - Google Patents
Assembled one-way belt roller of automobile generator Download PDFInfo
- Publication number
- CN206545657U CN206545657U CN201720152361.7U CN201720152361U CN206545657U CN 206545657 U CN206545657 U CN 206545657U CN 201720152361 U CN201720152361 U CN 201720152361U CN 206545657 U CN206545657 U CN 206545657U
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- Prior art keywords
- unidirectional
- roller
- radius
- section
- wedge surface
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- 238000005096 rolling process Methods 0.000 claims description 20
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 5
- 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
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
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Abstract
A kind of assembled one-way belt roller of automobile generator, clutch is by mandrel, unidirectional roller, retainer, back-moving spring and unidirectional raceway set composition, the endoporus of belt hub is through hole, it is provided with the endoporus that unidirectional raceway covers by basic circle section, the unidirectional wedge groove of 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 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 unidirectional raceway set, stress radius increases unidirectional roller in the course of the work, improve the ultimate torque of one-way belt roller of automobile generator, unidirectional wedge groove is designed to that the track of whole circular arc 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, simplify the processing technology of clutch structure part.
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 limited, 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 to accessory drive and fastened naturally, and the extreme rotational inertia that generator is born is bigger, is needed using prior art
Increase the physical dimension of generator, the light-weight design requirement of the energy-saving material-saving of automobile is not met so, is started to reduce
Influence of the non-homogeneous rotation of machine crankshaft to generator, improves the service life of generator one-way belt roller, it is necessary to upper existing
There is technical scheme to be improved.
Utility model content
The utility model provides a kind of assembled one-way belt roller of automobile generator, and it can not increase skin
Under the conditions of belt wheel physical dimension, one-way belt roller of automobile generator ultimate torque can be increased, one-way clutch mechanism is eliminated
In the negative lower accidental damage of rating plate limit for tonnage, it is ensured that the service life of belt pulley, meanwhile, processing technology is simple, and cost is low, practicality
By force.
The technical scheme that the utility model is taken is as follows：
A kind of assembled one-way belt roller of automobile generator, it is characterized in that：Including belt hub, mandrel, a left side
Rolling bearing, right rolling bearing, unidirectional roller, retainer, back-moving spring and unidirectional raceway set, the endoporus of belt hub is precision
Bearing mounting hole, the dynamic bearing that rolls left, unidirectional raceway set and right rolling bearing are arranged on belt hub by interference fit
In precision bearing mounting hole, unidirectional raceway set, which is located at, to roll left between dynamic bearing and right rolling bearing, and unidirectional roller passes through retainer
And back-moving spring be arranged on unidirectional raceway cover and mandrel it is cylindrical between, be consequently formed the one-way clutch mechanism of belt pulley, it is described
The cylindrical of mandrel is made up of left axle footpath section, medium axle diameter section and right axle footpath section, and left axle footpath section rolls left dynamic bearing, right axle for installation
Footpath section is used to install right rolling bearing, and medium axle diameter section is used to install unidirectional roller, retainer, back-moving spring and unidirectional raceway set
Combination；It is distributed the unidirectional wedge groove of setting, unidirectional wedge groove is by basic circle section, arc wedge the endoporus equal intervals covered in unidirectional raceway
Face and limit arc section composition, the radius of basic circle section is R1, and the radius of curved wedge surface is R2, and the radius of limit arc section is R3,
The exradius of the medium axle diameter section of mandrel is R4, and the radius of unidirectional roller is R5, the radius of limit arc section and unidirectional roller
Radius it is equal, i.e. R3=R5, the radius of curved wedge surface is 8~10 times of unidirectional roller diameter, i.e. R2=16-20R5, arc
The initiating terminal of wedge surface and basic circle section are tangent, and the clearing end and limit arc section of curved wedge surface are tangent, the locking of one-way clutch mechanism
Angle beta is the angle of following two lines, and first is curved wedge surface and the contact point of unidirectional roller and the company at unidirectional roller center
Line, Article 2 is the line at unidirectional roller center and the center of mandrel, lock corner β=3 °~10 ° of one-way clutch mechanism, arc
The depth capacity of wedge surface is 0.5~1.2 millimeter, the radius of basic circle section be less than the exradius of the medium axle diameter section of mandrel with it is unidirectional
The diameter sum of roller, i.e. R1 ＜ R4+2R5.
Further, the radius of curved wedge surface is 8 times of the radius of unidirectional roller, i.e. R2=8R5, the lock of one-way clutch mechanism
Tight angle beta is 3 °.
Further, the radius of curved wedge surface is 9 times of the radius of unidirectional roller, i.e. R2=9R5, the lock of one-way clutch mechanism
Tight angle beta is 8 °.
Further, the radius of curved wedge surface is 10 times of the radius of unidirectional roller, i.e. R2=10R5, one-way clutch mechanism
Lock corner β 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, ultimate torque is improved, the lock corner of constant unidirectional roller simplifies the processing work of clutch structure part
Skill.The engaging member that clutch structure is designed to be made up of mandrel, unidirectional roller, retainer, back-moving spring and unidirectional raceway set, skin
Endoporus with wheel hub is changed to precision bearing mounting hole, and the dynamic bearing that rolls left, unidirectional raceway set and right rolling bearing are matched somebody with somebody by interference
Conjunction mode is arranged in the precision bearing mounting hole of belt hub, and unidirectional raceway set is located at roll left dynamic bearing and right rolling bearing
Between, so it is easy to simplify the mechanical processing technique and Technology for Heating Processing of belt hub and unidirectional raceway set, also simplify whole
The assembly technology of product.
Unidirectional wedge groove is set in the endoporus that unidirectional raceway covers, and unidirectional wedge groove is by basic circle section, curved wedge surface and limit circular arc
Duan Zucheng, the radius of limit arc section is equal with the radius of unidirectional roller, the radius of curved wedge surface for unidirectional roller diameter 8~
10 times, the initiating terminal and basic circle section of curved wedge surface are tangent, and the clearing end and limit arc section of curved wedge surface are tangent, one-way clutch machine
The lock corner β of structure is 3 °~10 °, and the depth capacity of curved wedge surface is 0.5~1.2 millimeter, and the radius R1 of basic circle section is less than mandrel
Medium axle diameter section exradius R4 and unidirectional roller diameter sum.So, unidirectional roller in the course of the work by
Under equal limit loading conditions, because stress surface is in the curved wedge surface of unidirectional wedge groove, the radius of stress point is more than prior art,
The ultimate torque to clutch structure in one-way belt roller of automobile generator is improved, is tested by ultimate torque, using this
Scheme, ultimate torque can improve 20%~22%, while eliminating the projection for being arranged on positive camber core wheel outer wall in the prior art
The defect easily snapped off under speed rapidly state.Unidirectional wedge groove is designed to that whole arc-shaped rail can ensure that unidirectional roller exists
Lock corner in running is constant, eliminates that unidirectional roller is run on incline track in the prior art is that lock corner is continually changing
And the problem of cause not tight or excessive coupling mechanism force, reduce the frictional force of unidirectional roller in running to monodirectional locking track,
So as to improve the service life of one-way clutch mechanism.
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 unidirectional raceway set 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；The unidirectional raceway sets of 8-；9- curved wedge surfaces and the contact point of unidirectional roller and the line at unidirectional roller center；10-
Unidirectional roller center and the line at the center of mandrel；11- precision bearing mounting holes；81- basic circles section；82- curved wedge surfaces；83- poles
Limit arc section；21- left axles footpath section；22- medium axle diameters section；23- right axles footpath section；The radius of R1- basic circles section；R2- curved wedge surfaces
Radius；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 one-way clutch machine
The lock corner of structure.
Embodiment
Illustrate embodiment of the present utility model below in conjunction with the accompanying drawings：
Embodiment 1：A kind of assembled one-way belt roller of automobile generator, as shown in Fig. 1~Fig. 6, including skin
Band wheel hub 1, mandrel 2, the dynamic bearing 3 that rolls left, right rolling bearing 4, unidirectional roller 5, retainer 6, back-moving spring 7 and unidirectional raceway set
8, the endoporus of belt hub 1 is precision bearing mounting hole 11, and the dynamic bearing 3 that rolls left, unidirectional raceway set 8 and right rolling bearing 4 pass through
Interference fit is arranged in the precision bearing mounting hole 11 of belt hub 1, and unidirectional raceway set 8 is located at the He of dynamic bearing 3 of rolling left
Between right rolling bearing 4, unidirectional roller 5 by retainer 6 and back-moving spring 7 be arranged on unidirectional raceway cover 8 and mandrel 2 it is outer
Between circle, the thus one-way clutch mechanism of shape belt pulley, the mandrel 2 it is cylindrical by left axle footpath section 21,22 and of medium axle diameter section
Right axle footpath section 23 is constituted, and left axle footpath section 21 is used for installation and rolled left dynamic bearing 3, right axle footpath section 23 for installing right rolling bearing 4, in
Between diameter of axle section 22 be used for the combination of installing unidirectional roller 5, retainer 6, back-moving spring 7 and unidirectional raceway set 8；In unidirectional raceway
It is distributed the unidirectional wedge groove of setting, unidirectional wedge groove is by basic circle section 81, curved wedge surface 82 and the limit arc section endoporus equal intervals of set 8
83 compositions, the radius of basic circle section 81 is R1, and the radius of curved wedge surface 82 is R2, and the radius of limit arc section 83 is R3, mandrel 2
The exradius of medium axle diameter section 22 is R4, and the radius of unidirectional roller 5 is R5, the radius of limit arc section 83 and unidirectional roller 5
Radius it is equal, i.e. R3=R5, the radius of curved wedge surface 82 is 8~10 times of the unidirectional diameter of roller 5, i.e. R2=16-20R5, arc
The initiating terminal of shape wedge surface 82 and basic circle section 81 are tangent, and the clearing end and limit arc section 83 of curved wedge surface 82 are tangent, one-way clutch
The lock corner β of mechanism is the angle of following two lines, and first is contact point and unidirectional rolling of the curved wedge surface with unidirectional roller
The line 9 at post center, Article 2 is the line 10 at unidirectional roller center and the center of mandrel, the lock corner β of one-way clutch mechanism
=3 °~10 °, the depth capacity of curved wedge surface 82 is 0.5~1.2 millimeter, and the radius of basic circle section 81 is less than the jackshaft of mandrel 2
The diameter sum of the exradius and unidirectional roller 5 of footpath section 22, i.e. R1 ＜ R4+2R5.
Embodiment of the present utility model is a lot, is not limited to example, as long as containing unidirectional raceway set in one-way clutch mechanism
8, and unidirectionally wedge groove is arranged on the endoporus circumference of unidirectional raceway set 8, unidirectional raceway set 8 is arranged on skin by interference fit
In precision bearing mounting hole 11 with wheel hub 1, unidirectional wedge groove thereon is by basic circle section 81, curved wedge surface 82 and limit arc section 83
Composition so that the constant all technical schemes of lock corner belong to protection of the present utility model to unidirectional roller 5 in the process of running
Within the scope of.
Claims (4)
1. a kind of assembled one-way belt roller of automobile generator, it is characterized in that：Including belt hub (1), mandrel
(2), roll left dynamic bearing (3), right rolling bearing (4), unidirectional roller (5), retainer (6), back-moving spring (7) and unidirectional raceway set
(8), the endoporus of belt hub (1) is precision bearing mounting hole (11), the dynamic bearing that rolls left (3), unidirectional raceway set (8) and right rolling
Bearing (4) is arranged on by interference fit in the precision bearing mounting hole (11) of belt hub (1), unidirectional raceway set (8)
Between the dynamic bearing that rolls left (3) and right rolling bearing (4), unidirectional roller (5) is pacified by retainer (6) and back-moving spring (7)
Mounted in unidirectional raceway set (8) and mandrel (2) it is cylindrical between, be consequently formed the one-way clutch mechanism of belt pulley, the mandrel (2)
It is cylindrical be made up of left axle footpath section (21), medium axle diameter section (22) and right axle footpath section (23), left axle footpath section (21) are for installing a left side
Rolling bearing (3), right axle footpath section (23) is used to install right rolling bearing (4), and medium axle diameter section (22) is used to install unidirectional roller
(5), the combination of retainer (6), back-moving spring (7) and unidirectional raceway set (8)；In medium of the endoporus of unidirectional raceway set (8)
Unidirectional wedge groove is set every ground distribution, unidirectional wedge groove is made up of basic circle section (81), curved wedge surface (82) and limit arc section (83), base
The radius of circle section (81) is R1, and the radius of curved wedge surface (82) is R2, during the radius of limit arc section (83) is R3, mandrel (2)
Between the exradius of diameter of axle section (22) be R4, the radius of unidirectional roller (5) is R5, the radius of limit arc section (83) and unidirectional rolling
The radius of post (5) is equal, i.e. R3=R5, and the radius of curved wedge surface (82) is 8~10 times of unidirectional roller (5) diameter, R2=16-
20R5, the initiating terminal and basic circle section (81) of curved wedge surface (82) is tangent, clearing end and the limit arc section of curved wedge surface (82)
(83) tangent, the lock corner β of one-way clutch mechanism is the angle of following two lines, and first is curved wedge surface (82) and unidirectional
The contact point of roller (5) and the line (9) at unidirectional roller (5) center, Article 2 are unidirectional roller (5) center and mandrel (2)
The line (10) at center, lock corner β=3 °~10 ° of one-way clutch mechanism, the depth capacity of curved wedge surface (82) for 0.5~
1.2 millimeters, the radius of basic circle section (81) is less than the exradius and unidirectional roller (5) of the medium axle diameter section (22) of mandrel (2)
Diameter sum, i.e. R1 ＜ R4+2R5.
2. assembled one-way belt roller of automobile generator according to claim 1, it is characterized in that：Curved wedge surface
(82) radius is 8 times of the radius of unidirectional roller, i.e. R2=8R5, and the lock corner β of one-way clutch mechanism is 3 °.
3. assembled one-way belt roller of automobile generator according to claim 1, it is characterized in that：Curved wedge surface
(82) radius is 9 times of the radius of unidirectional roller, i.e. R2=9R5, and the lock corner β of one-way clutch mechanism is 8 °.
4. assembled one-way belt roller of automobile generator according to claim 1, it is characterized in that：Curved wedge surface
(82) radius is 10 times of the radius of unidirectional roller, i.e. R2=10R5, and the lock corner β of one-way clutch mechanism is 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152361.7U CN206545657U (en) | 2017-02-20 | 2017-02-20 | Assembled one-way belt roller of automobile generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720152361.7U CN206545657U (en) | 2017-02-20 | 2017-02-20 | Assembled one-way belt roller of automobile generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206545657U true CN206545657U (en) | 2017-10-10 |
Family
ID=59994677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720152361.7U Expired - Fee Related CN206545657U (en) | 2017-02-20 | 2017-02-20 | Assembled one-way belt roller of automobile generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206545657U (en) |
-
2017
- 2017-02-20 CN CN201720152361.7U patent/CN206545657U/en not_active Expired - Fee Related
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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 |