CN105003627A - One-way buffer pulley - Google Patents
One-way buffer pulley Download PDFInfo
- Publication number
- CN105003627A CN105003627A CN201510501693.7A CN201510501693A CN105003627A CN 105003627 A CN105003627 A CN 105003627A CN 201510501693 A CN201510501693 A CN 201510501693A CN 105003627 A CN105003627 A CN 105003627A
- Authority
- CN
- China
- Prior art keywords
- friction spring
- lining
- tooth axle
- belt
- belt pulley
- 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.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 claims description 6
- 238000013016 damping Methods 0.000 abstract description 7
- 230000003139 buffering effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 18
- DOSMHBDKKKMIEF-UHFFFAOYSA-N 2-[3-(diethylamino)-6-diethylazaniumylidenexanthen-9-yl]-5-[3-[3-[4-(1-methylindol-3-yl)-2,5-dioxopyrrol-3-yl]indol-1-yl]propylsulfamoyl]benzenesulfonate Chemical compound C1=CC(=[N+](CC)CC)C=C2OC3=CC(N(CC)CC)=CC=C3C(C=3C(=CC(=CC=3)S(=O)(=O)NCCCN3C4=CC=CC=C4C(C=4C(NC(=O)C=4C=4C5=CC=CC=C5N(C)C=4)=O)=C3)S([O-])(=O)=O)=C21 DOSMHBDKKKMIEF-UHFFFAOYSA-N 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009987 spinning Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 101100493712 Caenorhabditis elegans bath-42 gene Proteins 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/50—Features essential to rope pulleys
Abstract
The invention discloses a one-way buffer pulley used for transferring one-way torque between a belt pulley ring and a rotary shaft and realizing buffering vibration damping. The one-way buffer pulley is characterized by comprising a first friction spring, a first bushing and a gear shaft, wherein the first friction spring rubs with and is combined with the inner surface of the belt pulley ring; the first bushing is located in a space formed by the first friction spring, and the relative position of the first bushing and the first friction spring is fixed; the gear shaft is used for accommodating the rotary shaft, and one end of the first friction spring is accommodated in the gear shaft; an external thread is formed in the outer surface of the gear shaft, an internal thread is formed in the inner surface of the first bushing, and the first bushing and the gear shaft are fixed through the external thread and the internal thread.
Description
Technical field
The present invention relates to pulley drive technical field, particularly relate to a kind of one-way buffer pulley on automobile current generator.
Background technique
Traditional automobile current generator pulley (or claiming belt pulley, OAP) is all run with the synchronization of motor car engine, and when engine speed changes, the rotating speed of generator also will change.Therefore, when the unexpected acceleration or deceleration of motor, the rotating speed of generator pulley is also along with speed change, but due to the effect of inertia, cause generator amature rotating speed asynchronous with engine speed moment, can impact be formed between driving belt and belt pulley, reduce belt life, produce Yi noise, cause whole train service life reduction; Moment before engine stop work, engine crankshaft has an of short duration positive and negative direction swing, and the field coil in rotor causes damage by centrifugal forces affect, reduces the life-span of generator.
For improving the life-span of engine wheel system and generator, prior art discloses the improvement in belt sheave structure, as Chinese patent application CN200920294667 discloses a kind of motor car engine one-way belt sheave, it comprises belt hub, Pulley shaft and to be assembled between wheel hub and wheel shaft upper, lower ball bearing, and be located at described on, overrunning clutch between lower ball axle, described overrunning clutch is by unilateral bearing outer ring, roller bearing, spring and retainer composition, eccentric circle cambered surface identical on the inwall of described unilateral bearing outer ring is equidistantly arranged alternately with the identical groove parallel to an axis that caves in, the inner ring of described retainer and the tight fit of described wheel shaft, establish radial support block between the interior foreign country of described retainer, and the exterior edge face of described support block is corresponding with the groove that caves on the inwall of described unilateral bearing outer ring chimeric, the inwall of the Internal and external cycle of described retainer and radial support block and described unilateral bearing outer ring forms the little wedge cavities in large one end, one end between eccentric arc, in described wedge cavities, establishes the roller bearing supported by spring.What in this technological scheme, motor car engine one-way belt sheave processed on the wall of unilateral bearing outer ring that parallel to an axis equidistantly replaces cave in groove and the eccentric circle cambered surface workpiece more protruding than processing easy, and precision can be improved with milling, mill, to the friction of minimizing speed change, improve working life, reduce manufacture cost all beneficial, when the unexpected acceleration and deceleration of motor car engine, wheel shaft and belt hub can depart from bonding state, form the process of an one-way clutch, thus effectively extend the working life of single-way belt pulley of automobile generator.But this technological scheme motor car engine one-way belt sheave does not possess vibration-damping function, namely cannot possess unidirectional and vibration-damping function simultaneously.
Summary of the invention
In order to overcome the defect existed in prior art, the object of the present invention is to provide a kind of unidirectional pulley, can either effectively realize between belt rim and rotating shaft, transmit the vibration that unidirectional torque can also reduce and eliminate engine wheel system.
In order to realize foregoing invention object, the present invention discloses a kind of unidirectional pulley, for transmitting unidirectional torque between belt rim and rotating shaft, it is characterized in that, comprising: one first friction spring, the internal surface frictional engagement of this first friction spring and this belt rim; One first lining, this first lining is arranged in the space that this first friction spring is formed, and the relative position of this first lining and this first friction spring is fixed; One tooth axle, this tooth axle is for holding this rotating shaft, and one end of this first friction spring is contained in this tooth axle; The outer surface of this tooth axle comprises an outside thread, and the internal surface of this first lining comprises an internal thread, and this first lining and this tooth axle are fixed by this outside thread and internal thread.
In order to realize better technique effect, the internal surface of this belt rim forms one first groove at least partly, and this first friction spring is contained in this first groove at least partly, and this first friction spring deformation occurs in this first groove to reduce vibration.
In order to realize better technique effect, this first lining comprises a mounting hole and is fixed between this belt rim and this first lining to make this first friction spring for installing a screw.
In order to realize better technique effect, this tooth axle is rotated relative to this belt rim by a rolling bearing.
In order to realize better technique effect, this first groove is arranged at the one end near this tooth axle.
In order to realize better technique effect, this one-way belt sheave also comprises one second belt pulley, the internal surface frictional engagement of this second friction spring and this belt rim; One second lining, this second lining is arranged in the space that this second friction spring is formed, and the relative position of this second lining and this second friction spring is fixed; The internal surface of this second lining comprises an internal thread, and this second lining and this tooth axle are fixed by this outside thread and internal thread.
In order to realize better technique effect, this second lining comprises a mounting hole and is fixed between this belt rim and this second lining to make this second friction spring for installing a screw.
In order to realize better technique effect, this first and second friction spring is arranged on the both sides of this tooth axle with one heart in the mode that rotation direction is contrary.
In order to realize better technique effect, this tooth axle comprises first and second curve bath, one end of this first friction spring is contained in this first curve bath, and one end of this second friction spring is contained in this second curve bath.
In order to realize better technique effect, the internal surface of this belt rim forms one second groove at least partly, and this second friction spring is contained in this second groove at least partly, and this second friction spring deformation occurs in this second groove to reduce vibration.
Compared with prior art, a kind of one-way buffer belt pulley of the present invention, structure is very succinct, is expanded and is reduced and block and throw off belt rim, and then play preferably cushioning effect by the outer ring of friction spring, when belt rim is higher than tooth axle rotating speed time, friction spring outer ring swells, and blocks belt rim, and tooth axle and belt rim are combined into one, make tooth axle and belt rim synchronous rotary, transmission of drive force power; When belt rim is lower than tooth axle rotating speed time, friction spring outer ring reduces, and starts to skid in the axis hole of belt rim, tooth axle and belt rim is thrown off, makes tooth axle and each spinning of belt rim, play protection and buffer function; In addition, the place contacted with friction spring at the shaft hole inner wall of belt rim is provided with groove, can play damping effect in the moment of locking.Thus a kind of one-way buffer belt pulley of the present invention has one-way function and vibration-damping function simultaneously.
Accompanying drawing explanation
Can be further understood by following detailed Description Of The Invention and institute's accompanying drawings about the advantages and spirit of the present invention.
Fig. 1 is the structural representation of the one-way belt sheave that the present invention relates to;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the tooth axle of the one-way belt sheave that the present invention relates to and the assembly structure schematic diagram of friction spring.
Mainly illustrate
1--belt rim 2--groove 3-friction spring
4--tooth axle 5--lining 6--rolling bearing
7-lid, 8-rib-loop, 9-screw
41-tooth 42--curve bath.
Embodiment
Specific embodiments of the invention are described in detail below in conjunction with accompanying drawing.
The invention provides a kind of one-way buffer belt pulley, for transmitting unidirectional torque between belt rim and rotating shaft, it is characterized in that, comprising: one first friction spring, the internal surface frictional engagement of this first friction spring and this belt rim; One first lining, this first lining is arranged in the space that this first friction spring is formed, and the relative position of this first lining and this first friction spring is fixed; One tooth axle, this tooth axle is for holding this rotating shaft, and one end of this first friction spring is contained in this tooth axle; The outer surface of this tooth axle comprises an outside thread, and the internal surface of this first lining comprises an internal thread, and this first lining and this tooth axle are fixed by this outside thread and internal thread.In the following description, in order to clear displaying structure of the present invention and working method, to be described by many Directional words, but should by "front", "rear", "left", "right", " outward ", " interior ", " outwards ", " inwardly ", " on ", the Word Understanding such as D score for convenience of term, and not should be understood to word of limitation.In addition, the direction of nearly generator drive shaft mainly depended in used in the following description " interior " word; " outward " one word mainly refer to away from generator drive shaft direction; " axis " one word mainly refer to the direction that generator drive shaft is parallel, " radial direction " word mainly refers to the direction vertical with generator drive shaft.
The structure of the one-way buffer belt pulley of the embodiment of the present invention comprises belt rim 1 and is separately positioned on the rolling bearing 6 at axis hole two ends of belt rim 1 as shown in Fig. 1 and Fig. 2, and is supported on the tooth axle 4 on two rolling bearings 6.Rolling bearing 6 and belt rim 1 interference fit.Tooth axle 4 is at least provided with a friction spring 3, the inner side of friction spring 3 is a lining 5, and lining 5 role is for fixing this friction spring 3.One end of friction spring 3 is connected on tooth axle 4, and extends to form another free end along the axial screw of lining 5, and the outer ring of friction spring 3 is contacted with the shaft hole inner wall of belt rim 1, i.e. frictional engagement.Like this, expand by the outer ring of friction spring 3 and reduce and just can block and throw off belt rim 1, and then play preferably one-way clutch effect.Particularly, when belt rim 1 is higher than tooth axle 4 rotating speed time, the outer ring of friction spring 3 swells and blocks belt rim 1, and tooth axle 4 and belt rim 1 are combined into one, and makes tooth axle 4 and belt rim 1 synchronous rotary, transmission of drive force power; When belt rim 1 is lower than tooth axle 4 rotating speed time, the outer ring of friction spring 3 reduces, and starts to skid in the axis hole of belt rim 1, tooth axle 4 and belt rim 1 is thrown off, makes tooth axle 4 and each spinning of belt rim 1, plays protection and buffer function.
The one side that this lining 5 contacts with tooth axle 4 comprises at least part of internal thread; Same, the one side that tooth axle 4 contacts with lining 5 comprises at least part of outside thread.Therefore lining 5 and tooth axle 4 keep the fixing of relative position by screw thread.
The inner side of belt rim 1 comprises at least one groove 2, and spring 3 is partly held in the effect of groove 2.Motor due to Motor Vehicle is most is oil inflame promotion piston up-down, and burning makes bent axle accelerate, and compression makes crankshaft deceleration, and therefore V belt translation annex is also repeatedly accelerated and slows down.In this process, belt drives whole train (generator, water pump, air-conditioning, idle pulley etc.) to produce larger vibration, and the effect of this groove 2 is the elastic strains of effectively amplifying friction spring 3, reduces disc-coupled vibration.Because the existence of this groove 2, make the expansion space of friction spring 3 larger, therefore, it is possible to play the effect of buffering before blocking belt rim 1, the vibration of belt pulley can be alleviated.
This lining 5 also comprises at least one mounting hole, for mounting screw 9.Make friction spring 3 can be positioned at the space at groove 2 place by this screw 9.
In the present embodiment, groove 2 is formed as annular, and its width is less than the length of friction spring 3, and groove 2 is set to the position near tooth axle 4 end.In the present invention, a friction spring 3 or multiple friction spring 3 can be assembled as required, and friction spring 3 both can install (both sides being arranged on tooth axle 4 respectively) installation back-to-back, can parallelly install again (a tooth axle 4 installs a friction spring 3).
As shown in Fig. 3, in the present embodiment, the both sides of tooth axle 4 are connected to a friction spring 3, and two friction springs 3 are arranged on the both sides of tooth axle 4 with one heart with the mounting type that rotation direction is contrary.Particularly, the both sides of tooth axle 4 have curve bath 42, and one end that each friction spring 3 connects tooth axle 4 is connected in curve bath 42.
Compared with prior art, a kind of one-way buffer belt pulley of the present invention, structure is very succinct, is expanded and is reduced and block and throw off belt rim, and then play preferably cushioning effect by the outer ring of friction spring, when belt rim is higher than tooth axle rotating speed time, friction spring outer ring swells, and blocks belt rim, and tooth axle and belt rim are combined into one, make tooth axle and belt rim synchronous rotary, transmission of drive force power; When belt rim is lower than tooth axle rotating speed time, friction spring outer ring reduces, and starts to skid in the axis hole of belt rim, tooth axle and belt rim is thrown off, makes tooth axle and each spinning of belt rim, play protection and buffer function; In addition, the place contacted with friction spring at the shaft hole inner wall of belt rim is provided with groove, can play damping effect in the moment of locking.Thus a kind of one-way belt sheave of the present invention has one-way function and vibration-damping function simultaneously.
If no special instructions, occur in above-mentioned word be similar to " first ", the qualifier of " second " not refers to restriction to time sequencing, quantity or significance, and be only used to the technical characteristics of in the technical program to distinguish mutually with another technical characteristics.Similarly, the qualifier being similar to " " occurred herein not refers to the restriction to quantity, but describes the technical characteristics do not occurred in the preceding article.Similarly, occur before number herein be similar to " approximately ", the modifier of " approx " comprises this number usually, and its concrete implication should be understood in conjunction with context meaning.Not only similarly, only there is the noun that specific quantity measure word is modified, otherwise should regard as in this article and comprise singulative but also comprise plural form, in this technological scheme, namely can comprise odd number this technical characteristics, also can comprise this technical characteristics a plurality of.
Just preferred embodiment of the present invention described in this specification, above embodiment is only in order to illustrate technological scheme of the present invention but not limitation of the present invention.All those skilled in the art, all should be within the scope of the present invention under this invention's idea by the available technological scheme of logical analysis, reasoning, or a limited experiment.
Claims (10)
1. an one-way buffer pulley, for transmitting unidirectional torque and realize buffer shock-absorbing between belt rim and rotating shaft, is characterized in that, comprising:
One first friction spring, the internal surface frictional engagement of described first friction spring and described belt rim;
One first lining, described first lining is arranged in the space that described first friction spring is formed, and the relative position of described first lining and described first friction spring is fixed;
One tooth axle, described tooth axle is for holding described rotating shaft, and one end of described first friction spring is contained in described tooth axle; The outer surface of described tooth axle comprises an outside thread, and the internal surface of described first lining comprises an internal thread, and described first lining and described tooth axle are fixed by described outside thread and internal thread.
2. one-way buffer belt pulley as claimed in claim 1, it is characterized in that, the internal surface of described belt rim forms one first groove at least partly, described first friction spring is contained in described first groove at least partly, and described first friction spring deformation occurs in described first groove and cushions to be formed and reduce vibration.
3. one-way buffer belt pulley as claimed in claim 1, it is characterized in that, described first lining comprises a mounting hole and is fixed between described belt rim and described first lining to make described first friction spring for installing a screw.
4. one-way buffer belt pulley as claimed in claim 1, it is characterized in that, described tooth axle is rotated relative to described belt rim by a rolling bearing.
5. one-way buffer belt pulley as claimed in claim 2, is characterized in that, described first groove is arranged at the one end near described tooth axle.
6. one-way buffer belt pulley as claimed in claim 1, it is characterized in that, described one-way belt sheave also comprises one second belt pulley, the internal surface frictional engagement of described second friction spring and described belt rim; One second lining, described second lining is arranged in the space that described second friction spring is formed, and the relative position of described second lining and described second friction spring is fixed; The internal surface of described second lining comprises an internal thread, and described second lining and described tooth axle are fixed by described outside thread and internal thread.
7. one-way buffer belt pulley as claimed in claim 6, it is characterized in that, described second lining comprises a mounting hole and is fixed between described belt rim and described second lining to make described second friction spring for installing a screw.
8. one-way buffer belt pulley as claimed in claim 6, it is characterized in that, first and second friction spring described is arranged on the both sides of described tooth axle with one heart in the mode that rotation direction is contrary.
9. one-way buffer belt pulley as claimed in claim 6, it is characterized in that, described tooth axle comprises first and second curve bath, one end of described first friction spring is contained in described first curve bath, and one end of described second friction spring is contained in described second curve bath.
10. one-way buffer belt pulley as claimed in claim 6, it is characterized in that, the internal surface of described belt rim forms one second groove at least partly, described second friction spring is contained in described second groove at least partly, and described second friction spring deformation occurs in described second groove and cushions to be formed and reduce vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501693.7A CN105003627A (en) | 2015-08-17 | 2015-08-17 | One-way buffer pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510501693.7A CN105003627A (en) | 2015-08-17 | 2015-08-17 | One-way buffer pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105003627A true CN105003627A (en) | 2015-10-28 |
Family
ID=54376421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510501693.7A Pending CN105003627A (en) | 2015-08-17 | 2015-08-17 | One-way buffer pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105003627A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2720805A1 (en) * | 1994-06-01 | 1995-12-08 | Jean Badersbach | Transmission mechanism between motor and drive shafts |
| CN101936348A (en) * | 2010-09-07 | 2011-01-05 | 江苏南方轴承股份有限公司 | Belt pulley of over-travel alternating current generator decoupler |
| US20120186938A1 (en) * | 2011-01-24 | 2012-07-26 | John Harvey | Isolating decoupler |
| CN102817936A (en) * | 2012-09-05 | 2012-12-12 | 李志敏 | Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley |
| CN103363064A (en) * | 2013-07-15 | 2013-10-23 | 李志敏 | Spring friction brake one-way coupling damping belt wheel |
| US20140305765A1 (en) * | 2013-04-11 | 2014-10-16 | The Gates Corporation | Isolator decoupler |
| CN104806729A (en) * | 2015-04-27 | 2015-07-29 | 浙江洋通汽车配件有限公司 | Unidirectional buffer belt pulley |
| CN205001475U (en) * | 2015-08-17 | 2016-01-27 | 浙江洋通汽车配件有限公司 | One -way buffering pulley |
-
2015
- 2015-08-17 CN CN201510501693.7A patent/CN105003627A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2720805A1 (en) * | 1994-06-01 | 1995-12-08 | Jean Badersbach | Transmission mechanism between motor and drive shafts |
| CN101936348A (en) * | 2010-09-07 | 2011-01-05 | 江苏南方轴承股份有限公司 | Belt pulley of over-travel alternating current generator decoupler |
| US20120186938A1 (en) * | 2011-01-24 | 2012-07-26 | John Harvey | Isolating decoupler |
| CN102817936A (en) * | 2012-09-05 | 2012-12-12 | 李志敏 | Spring friction clutch mechanism for belt pulley and one-way coupling damping belt pulley |
| US20140305765A1 (en) * | 2013-04-11 | 2014-10-16 | The Gates Corporation | Isolator decoupler |
| CN103363064A (en) * | 2013-07-15 | 2013-10-23 | 李志敏 | Spring friction brake one-way coupling damping belt wheel |
| CN104806729A (en) * | 2015-04-27 | 2015-07-29 | 浙江洋通汽车配件有限公司 | Unidirectional buffer belt pulley |
| CN205001475U (en) * | 2015-08-17 | 2016-01-27 | 浙江洋通汽车配件有限公司 | One -way buffering pulley |
Non-Patent Citations (1)
| Title |
|---|
| 赵学田: "《机械设计自学入门（第二版）》", 冶金工业出版社, pages: 322 - 323 * |
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Address after: 315032 Ningbo Province, Jiangbei District, Zhejiang City, South Road, No. 1, building 1, building 499 Applicant after: NINGBO YANGTONG AUTO PARTS Co.,Ltd. Address before: 315032 Ningbo Province, Jiangbei District, Zhejiang City, South Road, No. 1, building 1, building 499 Applicant before: ZHEJIANG YANGTONG AUTO PARTS CO.,LTD. |
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Effective date of registration: 20230927 Address after: Building 2, No.1 Interval Road, New Area (Industrial Park), Shaxi Town, Xinchang County, Shaoxing City, Zhejiang Province, 312500 Applicant after: Shaoxing Yangtong Automotive Parts Co.,Ltd. Address before: Building 1, 1st Floor, No. 499 Kangzhuang South Road, Jiangbei District, Ningbo City, Zhejiang Province, 315032 Applicant before: NINGBO YANGTONG AUTO PARTS Co.,Ltd. |
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