CN105090282A - Following-type overrunning clutch with parallel rolls - Google Patents
Following-type overrunning clutch with parallel rolls Download PDFInfo
- Publication number
- CN105090282A CN105090282A CN201510565766.9A CN201510565766A CN105090282A CN 105090282 A CN105090282 A CN 105090282A CN 201510565766 A CN201510565766 A CN 201510565766A CN 105090282 A CN105090282 A CN 105090282A
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- ring
- support roller
- wheel device
- free wheel
- pushing out
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Abstract
The invention discloses a following-type overrunning clutch with parallel rolls. The following-type overrunning clutch with the parallel rolls comprises an outer ring, an inner ring and rolling bodies and further comprises a supporting roll assembly. Supporting roll sets of the supporting roll assembly each at least comprise an outer supporting roll and an inner supporting roll which are arranged in the radial direction of the overrunning clutch side by side in parallel. The outer circle of each outer supporting roll and the outer circle of the corresponding inner supporting roll make contact with the outer circles of the corresponding adjacent rolling bodies. The outer supporting rolls and the inner supporting rolls are arranged in the mode that the outer supporting rolls and the inner supporting rolls can move in the circumferential direction of the overrunning clutch. According to the following-type overrunning clutch with the parallel rolls, the machining and installing processes are simplified, work efficiency is improved, machining cost is lowered, and machining and assembling precision is guaranteed; the number of the arranged rolling bodies can be large, and thus the smoothness and stability of transmission and the loading capacity are guaranteed; besides, the rolling bodies are restrained appropriately in the radial direction, so that large abrasion caused in the overrunning composition is avoided, and service life, operation precision and use safety are guaranteed.
Description
Technical field
The present invention relates to a kind of for Motor Vehicle and mechanically operated clutching device, particularly a kind of free wheel device.
Background technique
Free wheel device is the basic components occurred along with the development of power product, and it is the vitals for transmission of power and separation function between prime mover and working machine or between machine intimate driving shaft and driven shaft.Mainly utilize the velocity variations of driving and driven part or the conversion of sense of rotation, there is the device of clutch function voluntarily.In practice, most for utilizing the engagement of tooth, the engagement of ratchet-ratchet or rolling element, the wedge action unidirectional delivery motion of voussoir or the clutch of moment of torsion.
Existing free wheel device generally comprises inner ring, rolling element and outer ring.Structure all adopts the structure of outer ring sleeve on inner ring, and form engagement chamber therebetween, and rolling element is positioned at engagement chamber formation overdrive clutch structure; No matter rolling element is adopt ball type or roller type structure, the inner ring or outer ring of free wheel device arrange position limit socket and elastic element, then need the space taking larger circumferencial direction, cause the quantity of roller (ball) cannot arrange more.Therefore, existing free wheel device running is steady not, and lifting capacity is poor; For the application needing heavy duty, only have and increase its radial dimension, cause the size of transmission device comparatively large, the needs of modern machinery and equipment can not be adapted to.Have is exactly that elastic element acts on rolling element and limits it and oppositely engages at circumferencial direction again, act on some local in other words on rolling element, can not balance be reached, make the easy deflection of rolling element, cause stuck or that motion is not smooth consequence, thus cause mechanical failure.Meanwhile, existing free wheel device, due to needs processing position limit socket and elastic elements, makes the work efficiency of free wheel device low, installs complicated, raise the cost.
For solving the problem, there is the help roll structure of a kind of employing independent of outer ring and inner ring, for keeping the spacing between rolling element, having cancelled elastic element and the position limit socket of prior art, avoid directly processing position limit socket on outer ring or inner ring, simplify course of working, increase work efficiency, cut down finished cost, ensure processing and assembly precision, increase the service life and ensure transmission effect, and associated components is easily changed after damaging, and reduces maintenance and use cost; Meanwhile, the bearing capacity of free wheel device is added; But help roll generally adopts single roll structure, the radial direction for rolling element does not retrain, and when high speed operation, rolling element is easy to cause heel and toe wear, and has stuck danger when surmounting, thus causes the accident.
Therefore, need to improve existing free wheel device, simplify processing and installation process, increase work efficiency, cut down finished cost, ensure processing and assembly precision; Can be more rolling element is set, ensure the stationarity of transmission, steadiness and lifting capacity; Further, to rolling element, there is radial suitable constraint, avoid causing larger wearing and tearing surmounting in formation, ensure working life, running precision and safety in utilization.
Summary of the invention
In view of this, the invention provides a kind of follow-up-type parallel rollers free wheel device, simplify processing and installation process, increase work efficiency, cut down finished cost, ensure processing and assembly precision; Can be more rolling element is set, ensure the stationarity of transmission, steadiness and lifting capacity; Further, to rolling element, there is radial suitable constraint, avoid causing larger wearing and tearing surmounting in formation, ensure working life, running precision and safety in utilization.
Follow-up-type parallel rollers free wheel device of the present invention, comprise outer ring, inner ring and rolling element, the engagement space being used for being engaged by rolling element or being separated is formed between described outer ring and inner ring, also comprise Support roller assembly, described supporting roller assembly at least comprises and is parallel to free wheel device axis and support roll group spaced with rolling element, described support roll group at least comprises along free wheel device radial side by side and the outer support roller be arranged in parallel and inner support roller, described outer support roller cylindrical all contacts with adjacent rolling element cylindrical with inner support roller cylindrical, described outer support roller and inner support roller are to arrange in the movable mode of the circumferencial direction of free wheel device.
Further, described outer ring axial end forms ring-shaped depression, and described inner ring is set in rotation with in this ring-shaped depression and engagement space is formed between the inwall of inner ring cylindrical and ring-shaped depression radial outside;
Further, described inner ring axially extends the ring-shaped depression of outer ring and extension part inner circle has the inner ring supporting portion that can coordinate with installation shaft, and described outer ring inner circle has the supporting portion, outer ring that can coordinate with installation shaft;
Further, described supporting roller assembly also comprises supporting roller support, and described outer support roller and inner support roller are with between the inwall that can slide and be supported in by supporting roller support around the mode of own axis the ring-shaped depression radial outside of outer ring along free wheel device circumferencial direction and inner ring cylindrical;
Further, described supporting roller support comprises the pushing out ring I and pushing out ring II that arrange corresponding to support roll two ends, the axial end of described pushing out ring I and the axial end of pushing out ring II are respectively equipped with the circular groove along pushing out ring I and pushing out ring II circumferencial direction for penetrating for outer support roller and inner support roller two ends, and described outer support roller and inner support roller two ends are slidably matched with corresponding circular groove;
Further, the ring-shaped depression of described outer ring is axially provided with for the oil-through hole by lubricant oil in bottom, and described pushing out ring I is positioned at the axial bottom of ring-shaped depression and the circular groove bottom land of pushing out ring I is provided with axial hole;
Further, described engagement space is formed by between the wedge slot of inner ring Excircle machining and the inwall of the ring-shaped depression radial outside of outer ring;
Further, the inner ring supporting portion of described inner ring is provided with the inner ring needle bearing for being rotatably assorted with installation shaft, and the supporting portion, outer ring of described outer ring is provided with the cup needle roller bearings for being rotatably assorted with installation shaft;
Further, the distribution of the axial hole of the circular groove bottom land of described pushing out ring I is corresponding with outer support roller and rolling element;
Further, the diameter of described outer support roller is greater than the diameter of inner support roller, and the two ends of described outer support roller form the necking down structure of the circular groove for penetrating pushing out ring I and pushing out ring II.
Beneficial effect of the present invention: follow-up-type parallel rollers free wheel device of the present invention, adopt the help roll structure independent of outer ring and inner ring, and adopt follow-up-type structure, for keeping the spacing between rolling element, cancel elastic element and the position limit socket of prior art, avoid directly processing position limit socket on outer ring or inner ring, simplify course of working, increase work efficiency, cut down finished cost, ensure processing and assembly precision, increase the service life and ensure transmission effect, and easily change after associated components damages, reduce maintenance and use cost; Owing to adopting help roll structure, do not adopt independent elastic element, the axial length of prolongation free wheel device that can be longer in theory and rolling element, increase length of action, thus increase the bearing capacity of free wheel device, and reduce, compared with the free wheel device radial dimension under high bearing capacity, to extend the working life of free wheel device; Simultaneously, directly contact with rolling element owing to adopting the dual-gripper roller be disposed radially, the unbalanced problem that the applying of the point cantact to the roller pretightening force not only eliminating prior art produces, also rolling element is formed to the radial constraint of balance, ensure under the prerequisite of longer axial dimension while the spacing balance of rolling element, avoid causing larger wearing and tearing surmounting in formation, and avoid mechanical failure, ensure working life, running precision and safety in utilization.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention;
Fig. 2 is that Fig. 1 is radially to sectional view.
Embodiment
Fig. 1 is structural representation of the present invention, Fig. 2 is that Fig. 1 is radially to sectional view, as shown in the figure: the follow-up-type parallel rollers free wheel device of the present embodiment, comprise outer ring 1, inner ring 2 and rolling element 3, the engagement space being used for engaging by rolling element 3 or being separated is formed between described outer ring 1 and inner ring 2, also comprise Support roller assembly, described supporting roller assembly at least comprises and is parallel to free wheel device axis and support roll group spaced with rolling element, described support roll group at least comprises along free wheel device radial side by side and the outer support roller be arranged in parallel and inner support roller, described outer support roller cylindrical all contacts with adjacent rolling element cylindrical with inner support roller cylindrical, described outer support roller and inner support roller are to arrange in the movable mode of the circumferencial direction of free wheel device, outer support roller refers to the support roll of radial outside, inner support roller is then be set up in parallel with outer support roller and be positioned at the back-up roll inside outer support roller along the radial direction of free wheel device, owing to all contacting with rolling element, thus the diameter of outer support roller is greater than the diameter of inner support roller, difference range is then different from the size of free wheel device, does not repeat them here, support roll group can the mounting structure of prior art along the movable set-up mode of circumferencial direction of free wheel device, does not repeat them here.
In the present embodiment, described outer ring axial end forms ring-shaped depression, and described inner ring 2 is set in rotation with in this ring-shaped depression and engagement space is formed between the inwall of inner ring cylindrical and ring-shaped depression radial outside; The rolling element 3 of free wheel device and the structure in engagement space belong to prior art, do not repeat them here; Because outer ring 1 axial end forms ring-shaped depression, its warp-wise sectional view is then formed and is similar to arching, internal cast support radially after installing inner ring; Inner ring is adopted to be positioned at the structure of the ring-shaped depression that outer ring is formed, inner ring embeds outer ring from structure, make between inner ring and outer ring, to form the impact mutually supported, inner ring on conventional construction is avoided directly to be supported in the structure of back shaft (transmission shaft), it also avoid the problem that driving error is exaggerated on free wheel device, not only ensure the global stability of free wheel device, also improve working life and running precision, be applicable to heavy duty and Environmental Conditions at a high speed.
In the present embodiment, described inner ring 2 axially extends the ring-shaped depression of outer ring 1 and extension part inner circle has the inner ring supporting portion 8 that can coordinate with installation shaft, and described outer ring 1 inner circle has the supporting portion, outer ring 9 that can coordinate with installation shaft; Installation shaft can be the transmission shaft for transmission, also can be to be specifically designed to the back shaft supporting free wheel device, and namely supporting portion, outer ring and inner ring supporting portion are all set in rotation with supporting axle; The whole free wheel device of this structure, by inner ring and outer ring common support, increases global stability, ensures working life and transmission accuracy.
In the present embodiment, described supporting roller assembly also comprises supporting roller support, and described outer support roller 5 and inner support roller 4 are with between the inwall that can slide and be supported in by supporting roller support around the mode of own axis the ring-shaped depression radial outside of outer ring 1 along free wheel device circumferencial direction and inner ring 2 cylindrical; This structure ensures rotation or the free sliding degree of support roll, thus ensures the trackability of support roll further, makes to form rolling friction when free wheel device runs between rolling element and support roll, reduces power consumption, and makes the stability of free wheel device better.
In the present embodiment, described supporting roller support comprises the pushing out ring I10 and pushing out ring II6 that arrange corresponding to support roll two ends, the axial end of described pushing out ring I10 and the axial end of pushing out ring II6 are respectively equipped with the circular groove along pushing out ring I10 and pushing out ring II6 circumferencial direction for penetrating for outer support roller 5 and inner support roller 4 two ends, (in Fig. 2, indicate the circular groove 10a on pushing out ring I10, circular groove 6a on pushing out ring II6 and the circular groove 10a similar on pushing out ring I10 are also all inside), described outer support roller 5 and inner support roller 4 two ends are slidably matched with corresponding circular groove, namely one end of outer support roller 5 and one end correspondence of inner support roller 4 penetrate the circular groove 10a on pushing out ring I10, the other end penetrates the circular groove 6a on pushing out ring II6, adopt the mounting structure of circular groove, structure is simple, and assembling easily, makes the designs simplification of free wheel device further, reduces costs.Described outer support roller and inner support roller two ends are slidably matched with corresponding circular groove;
In the present embodiment, the ring-shaped depression of described outer ring 1 is axially provided with for the oil-through hole 1a by lubricant oil in bottom, and described pushing out ring I10 is positioned at the axial bottom of ring-shaped depression and the circular groove 10a bottom land of pushing out ring I10 is provided with axial hole 10b; Can be introduced and removal of lubricant by oil-through hole 1a, together form grease channel with the opening of ring-shaped depression, realize lubrication and cleaning preferably, thus ensure the running of free wheel device.
In the present embodiment, described engagement space is formed by between the wedge slot of inner ring 2 Excircle machining and the inwall of the ring-shaped depression radial outside of outer ring 1; Simplified processing process, improves work efficiency, and cuts down finished cost.
In the present embodiment, the inner ring supporting portion 8 of described inner ring 2 is provided with the inner ring needle bearing for being rotatably assorted with installation shaft, and the supporting portion, outer ring 9 of described outer ring 1 is provided with the cup needle roller bearings for being rotatably assorted with installation shaft; Adopt the structure of needle bearing, be applicable to be installed to supporting axle, whole drive mechanism adaptability is stronger.
In the present embodiment, the distribution of the axial hole of the circular groove bottom land of described pushing out ring I is corresponding with outer support roller 5 and rolling element 3; Comparatively directly can provide lubrication preferably.
In the present embodiment, the diameter of described outer support roller is greater than the diameter of inner support roller, to ensure the radial constraint good to rolling element 3; The two ends of described outer support roller form the necking down structure of the circular groove for penetrating pushing out ring I and pushing out ring II; Adopt necking down structure can reduce the radial dimension of pushing out ring I and pushing out ring II while ensureing the larger radial dimension of external support roller, thus ensure the overall compactness of free wheel device; In the present embodiment, rolling element is roller.
What finally illustrate is, above embodiment is only in order to illustrate technological scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technological scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. a follow-up-type parallel rollers free wheel device, comprise outer ring, inner ring and rolling element, the engagement space being used for being engaged by rolling element or being separated is formed between described outer ring and inner ring, it is characterized in that: also comprise Support roller assembly, described supporting roller assembly at least comprises and is parallel to free wheel device axis and support roll group spaced with rolling element, described support roll group at least comprises along free wheel device radial side by side and the outer support roller be arranged in parallel and inner support roller, described outer support roller cylindrical all contacts with adjacent rolling element cylindrical with inner support roller cylindrical, described outer support roller and inner support roller are to arrange in the movable mode of the circumferencial direction of free wheel device.
2. follow-up-type parallel rollers free wheel device according to claim 1, it is characterized in that: described outer ring axial end forms ring-shaped depression, described inner ring is set in rotation with in this ring-shaped depression and engagement space and is formed between the inwall of inner ring cylindrical and ring-shaped depression radial outside.
3. follow-up-type parallel rollers free wheel device according to claim 2, it is characterized in that: described inner ring axially extends the ring-shaped depression of outer ring and extension part inner circle has the inner ring supporting portion that can coordinate with installation shaft, and described outer ring inner circle has the supporting portion, outer ring that can coordinate with installation shaft.
4. follow-up-type parallel rollers free wheel device according to claim 2, it is characterized in that: described supporting roller assembly also comprises supporting roller support, described outer support roller and inner support roller are with between the inwall that can slide and be supported in by supporting roller support around the mode of own axis the ring-shaped depression radial outside of outer ring along free wheel device circumferencial direction and inner ring cylindrical.
5. follow-up-type parallel rollers free wheel device according to claim 4, it is characterized in that: described supporting roller support comprises the pushing out ring I and pushing out ring II that arrange corresponding to support roll two ends, the axial end of described pushing out ring I and the axial end of pushing out ring II are respectively equipped with the circular groove along pushing out ring I and pushing out ring II circumferencial direction for penetrating for outer support roller and inner support roller two ends, and described outer support roller and inner support roller two ends are slidably matched with corresponding circular groove.
6. follow-up-type parallel rollers free wheel device according to claim 5, it is characterized in that: the ring-shaped depression of described outer ring is axially provided with for the oil-through hole by lubricant oil in bottom, described pushing out ring I is positioned at the axial bottom of ring-shaped depression and the circular groove bottom land of pushing out ring I is provided with axial hole.
7. follow-up-type parallel rollers free wheel device according to claim 6, is characterized in that: described engagement space is formed by between the wedge slot of inner ring Excircle machining and the inwall of the ring-shaped depression radial outside of outer ring.
8. follow-up-type parallel rollers free wheel device according to claim 3, it is characterized in that: the inner ring supporting portion of described inner ring is provided with the inner ring needle bearing for being rotatably assorted with installation shaft, the supporting portion, outer ring of described outer ring is provided with the cup needle roller bearings for being rotatably assorted with installation shaft.
9. follow-up-type parallel rollers free wheel device according to claim 8, is characterized in that: the distribution of the axial hole of the circular groove bottom land of described pushing out ring I is corresponding with outer support roller and rolling element.
10. follow-up-type parallel rollers free wheel device according to claim 5, is characterized in that: the diameter of described outer support roller is greater than the diameter of inner support roller, and the two ends of described outer support roller form the necking down structure of the circular groove for penetrating pushing out ring I and pushing out ring II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565766.9A CN105090282B (en) | 2015-09-08 | 2015-09-08 | Trailing type parallel rollers freewheel clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510565766.9A CN105090282B (en) | 2015-09-08 | 2015-09-08 | Trailing type parallel rollers freewheel clutch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105090282A true CN105090282A (en) | 2015-11-25 |
| CN105090282B CN105090282B (en) | 2017-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510565766.9A Active CN105090282B (en) | 2015-09-08 | 2015-09-08 | Trailing type parallel rollers freewheel clutch |
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| Country | Link |
|---|---|
| CN (1) | CN105090282B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555793A (en) * | 2019-01-18 | 2019-04-02 | 盐城市威氏机械有限公司 | A kind of wear-resisting overload protector |
| CN111059169A (en) * | 2019-12-04 | 2020-04-24 | 西南大学 | Multi-row floating combined type heavy-load overrunning clutch |
| CN111075857A (en) * | 2019-12-04 | 2020-04-28 | 西南大学 | Multi-row combined overrunning clutch mechanism for large load |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR557063A (en) * | 1922-07-11 | 1923-08-02 | Dayton Eng Lab Co | Coupling enhancements |
| US3339687A (en) * | 1965-10-24 | 1967-09-05 | Torrington Co | Retainer for overrunning clutch rollers |
| CN201535331U (en) * | 2009-09-01 | 2010-07-28 | 淮阴工学院 | Pressure bar roller compression pin roller type overrunning clutch |
| CN201554793U (en) * | 2009-12-31 | 2010-08-18 | 中国船舶重工集团公司第七�三研究所 | Unidirectional overrunning coupler with roller retainer |
| CN103307140A (en) * | 2013-05-31 | 2013-09-18 | 西南大学 | Floating auxiliary roller type overrun clutch |
-
2015
- 2015-09-08 CN CN201510565766.9A patent/CN105090282B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR557063A (en) * | 1922-07-11 | 1923-08-02 | Dayton Eng Lab Co | Coupling enhancements |
| US3339687A (en) * | 1965-10-24 | 1967-09-05 | Torrington Co | Retainer for overrunning clutch rollers |
| CN201535331U (en) * | 2009-09-01 | 2010-07-28 | 淮阴工学院 | Pressure bar roller compression pin roller type overrunning clutch |
| CN201554793U (en) * | 2009-12-31 | 2010-08-18 | 中国船舶重工集团公司第七�三研究所 | Unidirectional overrunning coupler with roller retainer |
| CN103307140A (en) * | 2013-05-31 | 2013-09-18 | 西南大学 | Floating auxiliary roller type overrun clutch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109555793A (en) * | 2019-01-18 | 2019-04-02 | 盐城市威氏机械有限公司 | A kind of wear-resisting overload protector |
| CN111059169A (en) * | 2019-12-04 | 2020-04-24 | 西南大学 | Multi-row floating combined type heavy-load overrunning clutch |
| CN111075857A (en) * | 2019-12-04 | 2020-04-28 | 西南大学 | Multi-row combined overrunning clutch mechanism for large load |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105090282B (en) | 2017-10-13 |
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