CN201934540U - Roller overrunning clutch - Google Patents
Roller overrunning clutch Download PDFInfo
- Publication number
- CN201934540U CN201934540U CN2011200600549U CN201120060054U CN201934540U CN 201934540 U CN201934540 U CN 201934540U CN 2011200600549 U CN2011200600549 U CN 2011200600549U CN 201120060054 U CN201120060054 U CN 201120060054U CN 201934540 U CN201934540 U CN 201934540U
- Authority
- CN
- China
- Prior art keywords
- roller
- hollow
- overrunning clutch
- adopts
- concave inwards
- 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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- 210000004907 gland Anatomy 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002028 premature Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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Abstract
The utility model relates to a roller overrunning clutch, which is characterized in that a roller adopts a hollow roller or the two ends of the roller are concave inwards. The utility model has the advantages that: (1) since the roller adopts the hollow structure or the two ends of the roller are concave inwards, the roller has certain flexibility, the contact stress of parts in contact pairs can be distributed uniformly, and the edge effect of the contact stress can be reduced effectively; (2) since the roller adopts the hollow structure or the two ends of the roller are concave inwards, the deviational load of the roller caused by errors in related coaxiality and verticality in production and installation can be avoided, and early wear of the roller and a retaining frame can be prevented; (3) since the roller adopts the hollow structure or the two ends of the roller are concave inwards, the defect that the roller is worn relatively rapidly in high-speed overrunning and rotation can be overcome; and (4) since the roller adopts the hollow structure or the two ends of the roller are concave inwards, the contact area between the roller and a roller path can be increased when the roller is deformed under heavy loads, the contact fatigue bearing capacity of the clutch can be improved, and the improvement of operating reliability of the overrunning clutch can be facilitated.
Description
Technical field
The utility model relates to a kind of engineering machinery transmission device technical field, and especially a kind of being used for realizes throwing off the roller overrunning clutch of low speed wedging transmitting large torque at a high speed.
Background technique
At present, free wheel device uses quite general in engineering machinery transmission device technical field, and its structure is mainly by outer ring gear, by the countershaft-gear of bolt and interior ring cam and gland connection, be sleeved on the outer retainer of cam ring, and the interior roller of raceway of ring cam constitutes in being contained in.The wedge space that the interior raceway of interior ring cam and outer ring gear is split into, retainer correctly remains in the space of wedge roller, spring is installed in the end face groove of retainer, one end withstands retainer, the other end withstands on the gland, make retainer promote the little end motion of roller together, outer ring gear and interior ring cam wedging are in the same place towards the wedge space, and transferring power and moment of torsion etc.Mainly there is following defective in it: (1) roller is in the tight transmitting torque process of wedging, because the edge effect of contact, the stress at its two ends causes free wheel device shorter working life apparently higher than the strength deficiency of middle (2) retainer own; (3) because each part in manufacturing and installation process, exists relevant coaxality and perpendicularity equal error, make each roller unbalance stress, roller tilts, and causes roller load to occur being partial to, and roller and retainer produce premature wear.
Summary of the invention
It is more reasonable that the main purpose of the utility model technology just provides a kind of structure, and can improve the roller overrunning clutch in life-span effectively.
Solution of the present utility model is such: the utility model is by the output outer ring gear, countershaft-gear is in the same place with the gland equijoin by bolt and interior ring cam, in then being enclosed within, retainer encircles between the interior raceway of cam outside and outer ring gear, have a series of groove on its cylndrical surface, roller is housed in the groove, main effect be make roller correctly remain in the wedge space of ring cam and the interior raceway formation of outer ring gear, spring is installed in the end face groove of retainer, one end withstands on retainer, one end withstands on the gland, make retainer promote the little end motion of roller together towards wedge, outer ring gear and interior ring cam wedging are in the same place, and transferring power and moment of torsion etc., described roller is the hollow roller or the recessed roller of inward at both ends of hollow, thereby there is certain flexibility at the roller two ends.
The utility model has the advantages that: (1) roller adopts the hollow or recessed structure of inward at both ends, so that roller has certain flexibility, the part contact stress in the Contact Pair is evenly distributed, and effectively reduces its contact stress edge effect.(2) roller adopts the hollow or recessed structure of inward at both ends, has improved because in manufacturing and the installation process, the relevant coaxality of existence and the deflection load of roller that the error of perpendicularity causes have avoided roller and retainer to produce premature wear.(3) roller adopts the hollow or recessed structure of inward at both ends, surmounts under the revolution situation at a high speed, has overcome when surmounting running at a high speed the roller very fast shortcoming of wearing and tearing.(4) roller adopts the hollow or recessed structure of inward at both ends, can increase the area of contact between roller and the raceway when roller is subjected to the heavy duty distortion, thereby improves the contact fatigue bearing capacity of clutch, helps improving the functional reliability of free wheel device.
Description of drawings
Accompanying drawing is embodiment of the present utility model.
Accompanying drawing 1 is a structural representation of the present utility model.
Accompanying drawing 2 shows that for roller 10 are the structural representation of hollow cylinder.
Accompanying drawing 3 shows that for roller 10 are the structural representation of open circles taper.
Accompanying drawing 4 shows that for roller 10 are hollow semicircular structure embodiment three.
Accompanying drawing 5 shows that for roller 10 are the structure embodiment four of open circles arc.
Accompanying drawing 6 shows that for roller 10 are the structure embodiment five of hollow ellipse shape.
Accompanying drawing 7 shows that for roller 10 are the structure embodiment six of hollow logarithmic curve shape.
Accompanying drawing 8 shows that for roller 10 are hollow parabola shaped structure embodiment seven.
Accompanying drawing 9 shows that for roller 10 are the structure embodiment eight of hollow involute shape.
Accompanying drawing 10 shows that for roller 10 are the structure embodiment nine of indent circular cone inscribe circle.
Accompanying drawing 11 shows that for roller 10 are the conical structure embodiment ten of indent.
Accompanying drawing 12 shows that for roller 10 are the semicircular structure embodiment 11 of indent.
Accompanying drawing 13 shows that for roller 10 are the structure embodiment 12 of indent circular arc.
Accompanying drawing 14 shows that for roller 10 are the oval-shaped structure embodiment 13 of indent.
Accompanying drawing 15 shows that for roller 10 are the structure embodiment 14 of indent logarithmic curve shape.
Accompanying drawing 16 shows that for roller 10 are the parabola shaped structure embodiment 15 of indent.
Accompanying drawing 17 shows that for roller 10 are the structure embodiment 16 of indent involute shape.
Accompanying drawing 18 shows that for roller 10 are the structure embodiment 17 of indent center hole shape.
Embodiment
The utility model comprises output outer ring gear 1, countershaft-gear 15 is by bolt 4, nut 5 and interior ring cam 8 and gland 3, encircle in the raceway of cam 8 outsides and outer ring gear 1 in 9 of retainers are enclosed within, have a series of groove on its cylndrical surface, roller 10 is housed in the groove, and described roller 10 is hollow roller or recessed rollers of inward at both ends of hollow.
When described roller 10 is the hollow roller of hollow, its end face hollow position is a kind of of hollow cylinder, circular cone hole shape, hemisphere, circular arc, half elliptic, logarithmic curve shape, parabola shaped, involute shape, also can be in above-mentioned hollow roller side chamfering.
When described roller 10 was the recessed roller of inward at both ends, recess was a kind of of cylindrical, circular cone hole shape, hemisphere, circular arc, half elliptic, logarithmic curve shape, parabola shaped, involute shape in it.
Claims (5)
1. roller overrunning clutch, include output outer ring gear (1), countershaft-gear (15) is by bolt (4), nut (5) and interior ring cam (8) and gland (3), in then being enclosed within, retainer (9) encircles in the raceway of cam (8) outside and outer ring gear (1), have a series of groove on its cylndrical surface, roller (10) is housed in the groove, it is characterized in that described roller (10) is the hollow roller or the recessed roller of inward at both ends of hollow.
2. roller overrunning clutch according to claim 1, when it is characterized in that described roller (10) for the hollow roller of hollow, its end face hollow position is a kind of of hollow cylinder, circular cone hole shape, hemisphere, circular arc, half elliptic, logarithmic curve shape, parabola shaped, involute shape.
3. roller overrunning clutch according to claim 1, when it is characterized in that described roller (10) for the recessed roller of inward at both ends, recess is a kind of of cylindrical, circular cone hole shape, hemisphere, circular arc, half elliptic, logarithmic curve shape, parabola shaped, involute shape in it.
4. roller overrunning clutch according to claim 2, when it is characterized in that described roller (10) for the hollow roller of hollow, its end face hollow position Leading end chamfer.
5. roller overrunning clutch according to claim 3, when it is characterized in that described roller (10) for the recessed roller of inward at both ends, recess Leading end chamfer in it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200600549U CN201934540U (en) | 2011-03-09 | 2011-03-09 | Roller overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200600549U CN201934540U (en) | 2011-03-09 | 2011-03-09 | Roller overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934540U true CN201934540U (en) | 2011-08-17 |
Family
ID=44446059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200600549U Expired - Fee Related CN201934540U (en) | 2011-03-09 | 2011-03-09 | Roller overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591179A (en) * | 2012-11-06 | 2014-02-19 | 吴长钰 | Back stop |
| CN107588119A (en) * | 2016-07-08 | 2018-01-16 | 罗伯特·博世有限公司 | One-way clutch |
-
2011
- 2011-03-09 CN CN2011200600549U patent/CN201934540U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591179A (en) * | 2012-11-06 | 2014-02-19 | 吴长钰 | Back stop |
| CN107588119A (en) * | 2016-07-08 | 2018-01-16 | 罗伯特·博世有限公司 | One-way clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20130309 |