CN2198454Y - Large torque rolling body single way mechanism - Google Patents
Large torque rolling body single way mechanism Download PDFInfo
- Publication number
- CN2198454Y CN2198454Y CN 94229334 CN94229334U CN2198454Y CN 2198454 Y CN2198454 Y CN 2198454Y CN 94229334 CN94229334 CN 94229334 CN 94229334 U CN94229334 U CN 94229334U CN 2198454 Y CN2198454 Y CN 2198454Y
- Authority
- CN
- China
- Prior art keywords
- star
- wheel
- roller
- steel ball
- outer hub
- 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.)
- Expired - Fee Related
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model relates to a large torque rolling body one-way mechanism, which is composed of an outer hub, a star wheel, and a roller or a steel ball, wherein, one end of the star wheel is provided with a boss, and the other end is provided with a groove; the inner ring of the outer hub is provided with a circular-arc clamping slot. When the star wheel is in race rotation, the roller or the steel ball is hidden in the circular-arc groove and rotates with the star wheel so as to realize the race rotation without friction; when the roller or the steel ball rotates reversely, the boss of the star wheel causes the roller or the steel ball to be extruded into the circular-arc clamping slot of the outer hub so as to realize reverse back stop. The one-way mechanism has the characteristics of no friction in the race rotation, reliable back stop and large transferring torque.
Description
The utility model relates to the unidirectional mechanism of a kind of rolling element.The unidirectional mechanism of existing rolling element is made up of outer hub, star-wheel, roller or steel ball.Outer hub endoporus is a circular hole, star-wheel is to have cut approximate half camber gap at cylindrical body outer shroud etc., dress roller or steel ball in the gap, at half camber facade, be provided with column pin hole, the pin of band spring is housed in the column pin hole, and an end of pin contacts with roller or steel ball, when star-wheel rotates counterclockwise, roller or steel ball compressing pin, spring shrinks, and roller or steel ball and outer hub are loosening rubbing contact, and star-wheel is rotatable, when star-wheel clockwise rotates, pin compressing roller or steel ball, roller or steel ball encircles and contact with star-wheel gap bottom plane respectively with in the outer hub, and outer hub is interior to be encircled, roller or steel ball, frictional force between star-wheel is with star-wheel stop.The shortcoming of said structure is: 1, roller or steel ball are when dallying counterclockwise, and ring produces friction in roller and steel ball and the outer hub, and noise is big.2, check realizes that by interior ring of roller and outer hub and the interplanar frictional force of star-wheel it is little to transmit torsion, easily produces slip between outer hub and star-wheel.
The purpose of this utility model provides the unidirectional mechanism of a kind of high pulling torque rolling element.This unidirectional mechanism can realize the high pulling torque transmission, reduces to produce friction between rolling element and outer hub.
The purpose of this utility model is to realize like this, an end face at the star-wheel gap is provided with arc boss, relative other end is a semi-circular recesses, arc boss and semi-circular recesses connect the 3rd that forms gap by the rounding off curved surface, arc platform and semi-circular recesses between two gap connect by the star-wheel circumferential surface, the quantity of five equilibrium gap can change between 3～24 according to star-wheel diameter difference, the ring periphery is provided with the Equal round arc fluting that equates with star-wheel gap quantity in the outer hub, radian is consistent with roller or steel ball radian, the peak of adjacent circular arc and minimum point are connect by the curved surface smooth transition, and curved surface direction from low to high is opposite with the opening direction of star-wheel semi-circular recesses.Place roller or steel ball in the outer hub between ring and star-wheel gap, its quantity is identical with star-wheel gap quantity, during work, star-wheel rotates, when star-wheel when the semi-circular recesses opening direction rotates counterclockwise, if the initial position of roller or steel ball is outside in the hub outer annular recess time, under the promotion of star-wheel semicircle groove end, roller or steel ball move along ring curved surface ecto-entad in the outer hub, in entering the star-wheel gap, because the rotational velocity of star-wheel is greater than the movement velocity of roller or steel ball, roller or steel ball enter in the star-wheel semi-circular recesses, rotate together in company with star-wheel, the star-wheel outside diameter is less than circular diameter in the outer hub, and roller and steel ball are hidden in the star-wheel semicircle groove, do not contact with outer hub inner peripheral surface, therefore, when dallying counterclockwise, interannular does not have friction in roller or steel ball and the outer hub.When star-wheel clockwise rotates, because the rotational velocity of star-wheel is greater than the movement velocity of roller or steel ball, roller or steel ball move towards the arc boss direction along gap the 3rd, under the acting in conjunction of centrifugal force and arc boss thrust, roller or steel ball move from low to high along outer hub inner loop curve, the highest groove that encircles in outer hub, the arc boss of star-wheel chokes roller or steel ball with the groove of outer hub.In non-return device, outer hub is fixed, oppositely check.In flywheel, star-wheel drives outer hub and clockwise rotates together.
The advantage of said structure is: when 1, dallying, ring does not have friction in roller or steel ball and the outer hub, noise is little, the life-span is long.2, during check, realize the high pulling torque transmission, solved existing non-return device, the sliding phenomenon under the transmission of flywheel high pulling torque.
This structure can be made into non-return device or flywheel, also can be installed in other machine.As: retarder, motorized pulleys, lathes etc. are made the machine that has check or oppositely dally.
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the sectional drawing of roller non-return device star-wheel when rotating counterclockwise
Fig. 2 is the sectional drawing of roller non-return device star-wheel when clockwise rotating
Fig. 3 is the sectional drawing of flywheel when rotating counterclockwise
Fig. 4 is the sectional drawing of flywheel when clockwise rotating
Embodiment 1:
A kind of sectional drawing of high pulling torque roller non-return device as shown in Figure 1 and Figure 2, wherein 1 is outer hub, the 2nd, outer annular recess, the 3rd, interior ring transitional surface, the 4th, star-wheel, the 5th, arc boss, the 6th, gap transitional surface, the 7th, semicircle groove, the 8th, star-wheel side face, the 9th, roller, the 10th, axle, the 11st, key.Fig. 1 is star-wheel non-return device sectional drawing when rotating counterclockwise.During work, star-wheel 4 rotates counterclockwise, roller 9 is hidden in the star-wheel semicircle groove 7 and rotates together in company with star-wheel 4, roller 9 does not have friction with outer hub 1 interior interannular, Fig. 2 is star-wheel non-return device sectional drawing when clockwise rotating, roller 9 outside the promotion lower edge of star-wheel arc boss 5 in the hub ring transitional surface 3 move to outer annular recess 2 places, simultaneously, star-wheel arc boss 5 squeezes post with roller 9, makes star-wheel 4 can not rotate the realization check.
Embodiment 2:
A kind of sectional drawing of high pulling torque flywheel such as Fig. 3, shown in Figure 4, wherein 1 ' be outer hub, 2 ' be outer annular recess, 3 ' be interior ring filtering surface,, 4 ' be star-wheel, 5 ' be arc boss, 6 ' be the gap transitional surface, 7 ' be semicircle groove, 8 ' be the star-wheel side face, 9 ' be steel ball, 10 ' be axle, 11 ' be axle key, 12 ' be hub key, the sectional drawing when wherein Fig. 3 is flywheel idle running, during work, star-wheel 4 ' rotate counterclockwise, steel ball 9 ' be hidden in star-wheel semicircle groove 7 ' in, in company with star-wheel 4 ' rotate together, steel ball 9 ' do not have friction with outer hub 1 ' interior interannular, outer hub 1 ' not with star-wheel 4 ' rotation.Fig. 4 is the sectional drawing of the clockwise load of flywheel when rotating, steel ball 9 ' star-wheel arc boss 5 ' promotion under, encircle transitional surface 3 ' move to outer annular recess 2 ' locate, simultaneously in the outer hub, star-wheel arc boss 5 ' with steel ball 9 ' choke the outer hub 1 of star-wheel 4 ' drive ' clockwise rotate together.
Claims (2)
1, the unidirectional mechanism of a kind of high pulling torque rolling element is by outer hub, star-wheel, roller or steel ball are formed, it is characterized in that: an end face of star-wheel (4) gap is camber boss (5), relative other end is semicircle groove (7), camber boss (5) is connect the 3rd that forms gap with semicircle groove (7) by transitional surface (6), semicircle groove between two gap and camber boss are connect by star-wheel circumferential surface (8), the ring periphery is provided with the arc groove (2) that equates with star-wheel gap quantity in the outer hub (1), the adjacent arcs connected in star is connected by transitional surface (3), transitional surface (3) direction from low to high is opposite with semicircle groove (7) opening direction, and roller or steel ball (9) are put in the gap of star-wheel (4).
2, the unidirectional mechanism of high pulling torque rolling element as claimed in claim 1, it is characterized in that: the quantity of star-wheel gap is 3～24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229334 CN2198454Y (en) | 1994-08-13 | 1994-08-13 | Large torque rolling body single way mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94229334 CN2198454Y (en) | 1994-08-13 | 1994-08-13 | Large torque rolling body single way mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2198454Y true CN2198454Y (en) | 1995-05-24 |
Family
ID=33841687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94229334 Expired - Fee Related CN2198454Y (en) | 1994-08-13 | 1994-08-13 | Large torque rolling body single way mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2198454Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433828A (en) * | 2018-04-25 | 2018-08-24 | 合肥德易电子有限公司 | A kind of wearable support arm device |
-
1994
- 1994-08-13 CN CN 94229334 patent/CN2198454Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433828A (en) * | 2018-04-25 | 2018-08-24 | 合肥德易电子有限公司 | A kind of wearable support arm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |