CN105508460B - A kind of isolator engaged with ball - Google Patents
A kind of isolator engaged with ball Download PDFInfo
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- CN105508460B CN105508460B CN201510841772.2A CN201510841772A CN105508460B CN 105508460 B CN105508460 B CN 105508460B CN 201510841772 A CN201510841772 A CN 201510841772A CN 105508460 B CN105508460 B CN 105508460B
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- ball
- inner ring
- outer shroud
- groove
- wedge groove
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
This patent discloses a kind of isolators of ball engaging, this isolator includes compression spring, baffle, shield, outer shroud and inner ring；Outer shroud and inner ring are circular ring structure, and inner ring is mounted in outer shroud, and keyway is provided on the inner wall of inner ring, and shield is fixedly mounted on the side of outer shroud, and baffle is fixed on the other side of outer shroud；It is characterized in that, further including ball；It is arc-shaped multiple wedge grooves to be offered on the outer wall of inner ring by the section that even circumferential is distributed, and the depth of wedge groove is gradually reduced；Ball is arranged between outer shroud and inner ring, and in wedge groove；One end of compression spring is fixed on the side wall of the deeper one end of wedge groove, and the other end top pressure of compression spring is on ball；Due to symmetrical sphere centered on ball, so phenomenon that will not be crooked in ball and wedge groove, thus prevents clamping stagnation.
Description
Technical field
The present invention relates to the isolators that a kind of isolator more particularly to a kind of ball engage.
Background technology
In automobile engine starting, the flywheel turns of engine are first driven by starter, then engine can just open
It is dynamic；But after engine ignition starts, the rotating speed of flywheel can surmount rapidly the rotating speed of starter motor, in order to avoid engine is reversed
Drive starter motor rotation, therefore between engine and starter be provided with isolator, be called freewheel clutch, therefore sending out
After the rotating speed of motivation is more than the rotating speed of starter motor, isolator will be detached, to avoid driven by engine starter motor from rotating.
Isolator can be also used in shift, when by top gear shift to low gear, since output shaft has just been detached from high speed tooth
Wheel, so output shaft still have there are one higher rotating speed, therefore after output shaft is connect with low-speed gear, to make output shaft and
There are one low-speed gear tools, and identical speed just needs moderating process there are one output shafts, and otherwise output shaft will reversely drive low
Fast gear rotation, or low-speed gear appearance is made to beat tooth phenomenon, it is impacted to be formed to gear, so that gear is damaged rapidly, therefore
It is also provided with isolator on electric vehicle, prevents output shaft from reversely driving low-speed gear.
Existing freewheel clutch is generally made of outer shroud, inner ring, shield, baffle, roller and compression spring.Roller is mounted on this
In the wedge-shaped locating slot opened up on internal wall, compression spring is additionally provided in wedge-shaped locating slot, a compression spring corresponds to a roller, pressure
Spring driving roller moves in wedge-shaped locating slot.Although roller is by shield and baffle axial limiting, roller and shield and baffle
Between there are gap, such roller inevitably will produce crooked when being moved in wedge-shaped locating slot, thus easily cause clamping stagnation, to
Influence the performance of freewheel clutch.
Invention content
The invention is intended to provide a kind of isolator of ball engaging, to solve the problems, such as the clamping stagnation of existing isolator.
The isolator of the base case ball engaging of the present invention, including compression spring, baffle, shield, outer shroud and inner ring；It is described outer
Ring and inner ring are circular ring structure, and the inner ring is mounted in outer shroud, and keyway is provided on the inner wall of inner ring, and the shield is solid
Dingan County is mounted in the side of outer shroud, and baffle is fixed on the other side of outer shroud；It further include ball；Offered on the outer wall of the inner ring by
The section of even circumferential distribution is arc-shaped multiple wedge grooves, and the depth of wedge groove is gradually reduced；The ball setting is outer
Between ring and inner ring, and in wedge groove；One end of the compression spring is fixed on the side wall of the deeper one end of wedge groove, and compression spring
Other end top pressure on ball.
In this base case, above-mentioned roller is changed to ball, and ball is located in the wedge groove of inner ring, so that wedge
Shape slot has the function of limit to ball, and ball is sphere, as long as in wedge groove, no matter how ball, which moves, all will not
There is crooked phenomenon, so as to cause catching phenomenon；Section additionally, due to wedge groove is cambered surface, so as to increase wedge groove table
The area that face is contacted with ball surface, so as to make up ball and the small problem of wedge groove contact area.
Preferred embodiment one, advanced optimizes as to base case, and positioning ring groove is arranged on the outer shroud inner wall, positioning
Annular groove is opposite with the wedge groove；Limited ring groove has the function of further limiting with wedge groove cooperation to ball so that ball
Stress is more stablized between outer shroud and inner ring, while the contact area of ball and outer shroud can also be made to increase, to further
It prevents from skidding.
Preferred embodiment two, advanced optimizes as to base case, and the free end of the compression spring has been arranged a top pressure lid,
Top pressure, which covers, is also provided with a spherical groove, and surface and the spherical groove of the ball coordinate；The spherical groove that top pressure covers
The contact area that top pressure lid and ball can be increased, to keep compression spring more preferable to the top pressure effect of ball, and spherical groove is also to rolling
There is pearl certain limit to make.
Preferred embodiment three, advanced optimizes as to base case, and conplane wedge groove is in the inner ring
It it is one layer, the wedge groove is provided with multilayer；Since the size of inner ring is limited, so too many wedge cannot be arranged in same level
Shape slot, to increase the quantity of ball, to obtain the frictional force of bigger, it is possible to multilayer wedge groove, to add ball.
Description of the drawings
Fig. 1 is the installation diagram of the isolator embodiment of ball engaging；
Fig. 2 is the sectional view of the isolator embodiment of ball engaging.
Specific implementation mode
Below by specific implementation mode, the present invention is described in further detail：
Reference numeral in Figure of description includes：Outer shroud 1, inner ring 2, inner ring 3, shield 4, baffle 5, compression spring 6, top pressure lid
7, output shaft 8, positioning ring groove 11, wedge groove 21.
Embodiment is basic as shown in attached drawing 1, Fig. 2：The isolator of ball engaging is by compression spring 6, ball, baffle 5, shield 4, outer
Ring 1 and inner ring 32 are constituted.Wherein, outer shroud 1 and inner ring 32 are circular ring structure, and key is additionally provided on the inner surface face of inner ring 32
Slot, to be connect with output shaft 8, and inner ring 32 is mounted in outer shroud 1；Shield 4 is fixedly mounted on the side of outer shroud 1, outer shroud 1 it is another
Side is baffle 5, and baffle 5 is steel ring plate, and is fixed by equally distributed screw on circumference and outer shroud 1.In outer shroud 1
Inner wall on the section that offers be arc-shaped positioning ring groove 11；And it is equipped on 32 outer wall of inner ring opposite with positioning ring groove 11
The section answered also is 8 wedge grooves 21 of arc, and the depth of wedge groove 21 is gradually reduced；And ball is arranged in positioning ring groove 11
It is limited between wedge groove 21, and by positioning ring groove 11 and wedge groove 21；One end of compression spring 6 is fixed on 21 deeper one end of wedge groove
Side wall on, and the other end top pressure of compression spring 6 is on ball；In order to keep compression spring 6 more preferable to the top pressure effect of ball, in compression spring 6
Free end be arranged a top pressure lid 7, a spherical groove is also provided on top pressure lid 7, to increase connecing for top pressure lid 7 and ball
Contacting surface is accumulated.
To increase engaging ability of the ball to inner ring 32 and outer shroud 1, two layers of positioning is provided on outer shroud 1 and inner ring 32
Slot, to increase ball quantity to reduce the skidding of inner ring 32 and outer shroud 1.
The present invention is problem there is no deflection because steel ball rolls anyway in the application, therefore will not also be gone out
Existing catching phenomenon；The section of wedge groove 21 is cambered surface simultaneously, therefore the contact area of steel ball and wedge groove 21 will also increase, to
Can prevent from skidding, limited ring groove not only coordinates wedge groove 21 to have the function of limit to ball, while can also make ball with it is outer
The contact area of ring 1 increases, to further prevent skidding.
Claims (3)
1. a kind of isolator of ball engaging, including compression spring, baffle, shield, outer shroud and inner ring；The outer shroud and inner ring are circle
Ring structure, the inner ring is mounted in outer shroud, and keyway is provided on the inner wall of inner ring, and the shield is fixedly mounted on outer shroud
Side, baffle are fixed on the other side of outer shroud；It is characterized in that, further including ball；It is offered by circle on the outer wall of the inner ring
Week, equally distributed section was arc-shaped multiple wedge grooves, and the depth of wedge groove is gradually reduced；Outer shroud is arranged in the ball
Between inner ring, and in wedge groove；One end of the compression spring is fixed on the side wall of the deeper one end of wedge groove, and compression spring
Other end top pressure is on ball；Be provided on the outer shroud inner wall section be arc-shaped positioning ring groove, positioning ring groove with it is described
Wedge groove is opposite.
2. the isolator of ball engaging according to claim 1, which is characterized in that the free end of the compression spring has been arranged one
Top pressure lid, top pressure, which covers, is also provided with a spherical groove, and surface and the spherical groove of the ball coordinate.
3. the isolator of ball engaging according to claim 1, which is characterized in that in conplane in the inner ring
Wedge groove is one layer, and the wedge groove is provided with multilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841772.2A CN105508460B (en) | 2015-11-28 | 2015-11-28 | A kind of isolator engaged with ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510841772.2A CN105508460B (en) | 2015-11-28 | 2015-11-28 | A kind of isolator engaged with ball |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105508460A CN105508460A (en) | 2016-04-20 |
| CN105508460B true CN105508460B (en) | 2018-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510841772.2A Active CN105508460B (en) | 2015-11-28 | 2015-11-28 | A kind of isolator engaged with ball |
Country Status (1)
| Country | Link |
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| CN (1) | CN105508460B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361272A (en) * | 2017-12-27 | 2018-08-03 | 北京可以科技有限公司 | Shaftless articulated structure |
| CN109809018B (en) * | 2019-02-21 | 2020-04-28 | 浙江工商大学 | Shoulder carrying transportation back frame |
| CN111715698A (en) * | 2019-03-20 | 2020-09-29 | 本钢板材股份有限公司 | Locking snap ring for cold rolling mill |
| CN110596250B (en) * | 2019-07-31 | 2022-01-07 | 深圳市人民医院 | Portable anti-falling ultrasonic flaw detection tester |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100453840C (en) * | 2003-02-13 | 2009-01-21 | Nsk沃纳株式会社 | Rotation activated one-way clutch |
| JP2012167725A (en) * | 2011-02-14 | 2012-09-06 | Jtekt Corp | One-way clutch |
| JP2014084955A (en) * | 2012-10-24 | 2014-05-12 | Jtekt Corp | One-way clutch |
| CN103573857A (en) * | 2013-02-04 | 2014-02-12 | 马骥 | High-reliability clutch mechanism |
| CN203627592U (en) * | 2013-10-31 | 2014-06-04 | 长城汽车股份有限公司 | Overrunning alternator pulley of automobile engine wheel train |
| CN203685933U (en) * | 2014-01-13 | 2014-07-02 | 国营长空精密机械制造公司 | Outer star wheel type involute overrunning clutch |
| CN205278159U (en) * | 2015-11-28 | 2016-06-01 | 重庆华洋单向器制造有限公司 | Isolator with ball block |
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2015
- 2015-11-28 CN CN201510841772.2A patent/CN105508460B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105508460A (en) | 2016-04-20 |
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