CN102588468B

CN102588468B - Full groove-passage self correction friction type overrun clutch

Info

Publication number: CN102588468B
Application number: CN201110023560.5A
Authority: CN
Inventors: 洪涛
Original assignee: Individual
Current assignee: Luyake Fire Vehicle Manufacturing Co ltd
Priority date: 2011-01-11
Filing date: 2011-01-11
Publication date: 2017-12-29
Anticipated expiration: 2031-01-11
Also published as: CN102588468A

Abstract

A kind of full groove-passage self correction friction type overrun clutch.This friction overdrive clutch is characterised by, under conditions of with identical clutch internal-and external diameter, by way of the rubbing surface of roller or diagonal brace and inner and outer ring is all arranged into V-arrangement inclined-plane, in the case where increasing the coefficient of friction of friction pair and then significantly increasing the angle of wedge, also the friction overdrive clutch with higher rigidity and the bigger angle of wedge is finally obtained by the mode for reducing the radial clearance between inner and outer ring to increase the depth of section of two rings and then strengthen their own radial rigidity.Simultaneously, the radially opposite sides of roller or diagonal brace are natively provided with self holding capacity of operating attitude/position and ability of reforming due to being constrained by the two V-shaped groove roads circumferentially extended, and inner and outer ring is axially connected into the ability of an entirety, therefore, greatly reduce the requirement that clutch makes precision and assembly precision to the demand of retainer and to it, clutch is set to work more reliable, bearing capacity is bigger, and the life-span is longer.

Description

Full groove-passage self correction friction type overrun clutch

Technical field

The present invention relates to a kind of arrangement of clutch in mechanical transmission fields, and include its motor vehicle parking device, it is special It is not related to the friction overdrive clutch that a kind of intermediate piece is acted on by inner and outer ring radial compression.

Background technology

Roller/bead freewheel clutch and diagonal-bracing type freewheel clutch, it is to have radially to be squeezed by inner and outer ring in the prior art The main representative of the friction overdrive clutch of the intermediate piece of pressure.The inner and outer rings of the prior art are the certain torque institute of transmission The radial load born is excessive, causes the radial rigidity of inner and outer rings to seem relative deficiency that resulting elastomeric radial is not only The reliability of respective clutch engagement is have impact on, moreover, more usually turning into freewheel clutch disengages the main reason for difficult.So And but seem not big enough corresponding to the frictional force of above-mentioned excessive radial load, cause the angle of wedge/contact angle and biography of freewheel clutch Kinetic force all seems relatively small.And too small contact angle is even more to cause diagonal-bracing type freewheel clutch to produce indivedual diagonal brace upsets Peculiar failure mode the main reason for.

In addition, prior art is to the intermediate piece of such as roller and diagonal brace etc and the depth of parallelism of inner and outer rings axis of rotation Too high demand, directly results in demand of the freewheel clutch to retainer, and to the retainer and relative star-wheel, The corresponding manufacture of roller etc. and assembly precision require too high and excessively tight, so as to add cost of manufacture and assembly cost, more directly Connecing reduces its functional reliability and life-span.

To increase the angle of wedge, patent document CN85107128A provides a kind of technology solution for roller/bead freewheel clutch Certainly scheme.The program expands the angle of wedge, but such as steel ball or broad in the middle therein in a manner of setting unit V-groove rubs conduit The intermediate piece of the small revolving body in two, but there is point contact friction pair or excessive with " plane or curved surface " therein point contact stress Notable defect, cause the technology not possess larger transmission capacity corresponding to its larger angle of wedge still finally.

The content of the invention

This invention address that eliminate or at least mitigate above mentioned problem existing for prior art.

The technical problem to be solved in the present invention is to provide a kind of under the conditions of equal outer shroud external diameter and inner ring internal diameter, tool There is the full groove-passage self correction friction type overrun clutch of relatively bigger radial rigidity and the angle of wedge, to lift its transmission capacity, subtract Small axial dimension, and make the intermediate piece itself of such as roller or diagonal brace therein etc, there is operating attitude/position to keep energy The ability that power and automatic centering are reformed automatically, so as to cancel or at least weaken requirement of the freewheel clutch to retainer, simplify Its assembly technology.

In order to solve the above technical problems, the full groove-passage self correction friction type overrun clutch of the present invention includes：At least substantially Outer shroud annular in shape, is provided with that gradually wide at least one interior conduit, the interior conduit at least exist by bottom land to notch in inner circumferential surface At least generally circumferentially extend in one plane rotary space；Radially coaxially it is set in outer shroud and is at least substantially in The inner ring of ring-type, be provided with its outer peripheral face by bottom land to notch gradually wide at least one outer conduit, the outer conduit corresponding to At least generally circumferentially extend in each plane rotary space of above-mentioned interior conduit, also, the outer conduit and interior conduit two At least one of person, it is around the all-round to revolution conduit of above-mentioned axis revolution；It is empty to be accommodated in each above-mentioned plane revolution At least one intermediate piece between interior interior conduit and the radial direction of outer conduit, it is inside at least provided with its footpath is located at respectively thereon Outer both sides and respectively have center-of-curvature line at least substantially the part surface of revolution on truncated cone type surface, the part surface of revolution are used Contacted respectively in opposite interior conduit and outer conduit, to form linear contact lay friction pair, and make inner ring and outer rings can be in a phase Entirety is rotated to driveably connecting into one by the intermediate piece in rotation direction, and on opposite relative rotation direction Can only each it be freely rotatable；And in addition at least one material be nitrile rubber preloading spring, it is arranged to intermediary Part is routinely suppressed to the direction that outer shroud and inner ring can be caused driveably to connect into a rotation entirety；Wherein, every In one plane rotary space, the inclined-plane angle in the shaft section of interior conduit, it is all higher than that outer shroud and intermediate piece can be caused radially The maximum of the inclined-plane angle of upper friction self-locking；Moreover, at least axial one end of at least one plane rotary space is outer The circular gap of ring and interior interannular is non-by type circular gap, i.e. its it is all-round to maximum radial space, it is impossible to it is big to causing Make the intermediate piece in the plane rotary space, can axially be removed in a manner of its center-of-curvature line is parallel to above-mentioned axis Store at least one degree in the outer conduit and interior conduit of the intermediate piece.

In the application, " shaft section " refers to the section by the curved surface center-of-curvature line of itself.

Preferably, the side surface for CONTACT WITH FRICTION of both above-mentioned outer conduit and interior conduit is frusto-conical surface or flat Face, correspondingly, intermediate piece are double cone roller or conical surface diagonal brace.

Most preferably, it is at least one in above-mentioned interior conduit, outer conduit and intermediate piece, there is axially above full symmetric be used for The side surface of CONTACT WITH FRICTION.

Selectively, be provided with it is above-mentioned it is all-round to revolution conduit inner ring and outer rings in it is at least one be configured to axially Combine ring, its at least connect by interference, screw thread/helical tooth, snap ring, pin, bonding and a kind of connecting mode in welding and Into.

According to the full groove-passage self correction friction type overrun clutch of the present invention, because the radial gap between its inner and outer ring is notable The rubbing surface of substantially truncated cone type is reduced and has, and with radial rigidity bigger compared with the prior art, the angle of wedge, transmission energy Power and smaller axial dimension.Meanwhile its intermediate piece more natively possess operating attitude/position self keep and it is automatic Centering is reformed ability automatically, it is not necessary to the help of retainer need to be relied on, so as to reduce the making of clutch and assembly difficulty.By The explanation and accompanying drawing of following embodiments, objects and advantages of the present invention will seem apparent and clear.

Brief description of the drawings

Fig. 1 is that oneself reforms frictional mono-directional overrun clutch according to the full conduit with symmetric double taper roller of the present invention Front view.

Fig. 2 is the enlarged drawing of H-H sections in Fig. 1.

Fig. 3 A and Fig. 3 B, it is to have the full conduit with the surface of revolution frictional two-way super from reforming according to the present invention respectively The more front view of clutch, and the axial semi-cutaway of the simplification of left view.

Fig. 4 is the axle from frictional double rolling key clutch of reforming according to the full conduit with the different surfaces of revolution of the invention To half-section diagram, wherein, for convenience of showing, double cone roller is drawn as circumferential same position.

Fig. 5 is local expansion schematic diagram of the two endless belt-shaped springs in Fig. 4 to same external cylindrical surface radially projecting.

Fig. 6 is that have the full conduit of conical surface diagonal brace from the master for frictional mono-directional overrun clutch of reforming according to the present invention View.

Fig. 7 is the enlarged drawing of T-T compound sections in Fig. 6.

Fig. 8 be in Fig. 1 tape spring to the local expansion schematic diagram of same external cylindrical surface radially projecting.

Fig. 9 A and Fig. 9 B, it is the front view and top view of thread arc spring in Fig. 3 A respectively.

Figure 10 be in Fig. 6 elastic retainer to the local expansion schematic diagram of same external cylindrical surface radially projecting.

Embodiment

Embodiment one：Full conduit with symmetric double taper roller is from reforming frictional mono-directional overrun clutch C1

Fig. 1~2, the clutch C1 classes shown in 8 belong to roller-type overrunning clutch.It is similar with such most of clutch, It includes the outer shroud 30 around the revolution of same axis X, inner ring 40, one group of double cone roller for comprising at least one as intermediate piece 50 and the endless belt-shaped spring 70 as preloading spring.

Wherein, to be easily manufactured, symmetrical expression double cone roller 50 is used for the side surface of CONTACT WITH FRICTION, is most preferably to have two Individual half axially symmetric cone-apex angle is equal to the β complete frusto-conical surface formula surface of revolution, and β=90 degree-ρ/2.Wherein, ρ is outer shroud 30 And corresponding inside and outside inclined-plane angle of the conduit in axial plane of inner ring 40.To reduce unloaded resistance and abrasion, should most preferably take Value θ ＜ ρ ＜ 180 degrees, wherein, θ is that double cone roller 50 can be caused radially to distinguish friction self-locking with outer shroud 30 and inner ring 40 Angle ρ maximum.In fact, what side surface was all not required in the tapering shape surface of revolution and axially symmetric setting, as long as Can realize respectively radially with the inner ring 30 and outer shroud 40 for storing double cone roller 50 it is complementary be bonded/conflict, the revolution Face can be to be around the arbitrary surface of revolution that forms of same center-of-curvature line revolution based on any two curve/buses.It is in this way, natural The part for being used for CONTACT WITH FRICTION on the roller surface of revolution can be ensured, it is constantly gradual axially outward with the reduction of the radius of gyration Extension, so as to form at least substantially surface of revolution on truncated cone type surface, that is, general trend is with radially outer thin interior thick Key structural features.

Accordingly, on the inner peripheral surface of circular outer shroud 30, it is provided with for the CONTACT WITH FRICTION of double cone roller 50 and having Two frusto-conical surface formula side surfaces of complementary shaft section construction, and form the friction pair of linear contact lay.Two side surfaces are axially right Ground is claimed to form all-round to revolution conduit, that is, the interior conduit 32 of storage double cone roller 50.The outer peripheral face of outer shroud 30 or end face On, it is provided with to transmit the characteristic surface of the composition such as tooth or groove of torque.

Similarly, on the outer peripheral face of circular inner ring 40, be most preferably evenly equipped with one group of such as six it is identical outer Conduit 42, accordingly to store double cone roller 50.The outer conduit 42 is in same plane type rotary space with interior conduit 32 It is interior, and can form line with double cone roller 50 with one section along straight line 44 towards counter clockwise direction side extension in such as Fig. 1 Friction pair is contacted, there is plane formula friction side surface, and with the axially symmetric straight line conduit 46 of complementary shaft section construction. Between the straight line conduit 46 and interior conduit 32, limit and radially become narrow gradually/small circumferential wedge shape space in the counterclockwise direction.In It is that double cone roller 50 is accommodated in the side counterclockwise become narrow gradually of the wedge shape space, that is, wedging side, by the He of outer shroud 30 When the wedging of inner ring 40 is integral, it is with the interior CONTACT WITH FRICTION of conduit 32 formed with two public sections, the intersection 34 of two public sections Angle between straight line 44 is locking angle.Obviously, when ρ=90 degree, freewheel clutch C1 will be with prior art complete one Cause, the related definition that locking angle will fit completely into existing roller-type overrunning clutch.If the in fact, influence by angle ρ The equlvalent coefficient of friction of classics is converted to coefficient of friction, the definition of locking angle will be no different with prior art.

And on the inner peripheral surface of inner ring 40 or end face, the feature for being provided with to transmit the composition such as tooth or groove of torque is bent Face, there can also be the one group of face included parallel to straight line 44 on its outer peripheral face, it is heterogeneous big to be formed between inner and outer ring Cause for annular shape circular gap, so as to inside and outside correlation channel depth show hour compared with Fig. 1~2, can without set lack Mouthfuls 48 and directly assemble double cone roller 50.

As described above, the interior conduit 32 being generally aligned in the same plane in type rotary space and outer conduit of storage double cone roller 50 42, generally have naturally corresponding to above-mentioned strict difinition by bottom land to notch gradually wide key structural features, also It is the basic architectural feature with V-shaped groove.It is therefore not necessary to only rolled again by other any means or component by double cone The radial direction of son 50 inserts/embedded connection, and outer shroud 30 and inner ring 40 are just defined to axial one, turned into like deep-groove ball naturally The same axially entirety of bearing.And acted on by the interior conduit 32 of V-arrangement and the circumference and radially-directed of outer conduit 42, centrifuged The double cone roller 50 of power or circumferential elastic force continuous action, will natively have permanent pursuit and try hard to keep it correctly to work Posture or the ability and trend of position, that is, have try hard to force automatic tune of its center-of-curvature line parallel to axis X all the time Ability that is whole and reforming automatically, the absolutely not wedging posture for axis deviation occur.So as to completely eliminate in the prior art The presence foundation of retainer and the possibility extruded by other deflection rollers, and be both needed to make simultaneously for each roller/post With the foundation of at least two preloading springs, and it therefore significantly simplify making/assembling clutch C1 (key be roller, storage rolling The star-wheel and retainer or spring of son) technique, precision and coherence request, reduce cost and lift its functional reliability and longevity Life.And it is apparent that because rubbing surface stretches/protruded into different radial spaces, therefore, keeping friction surface or rubbing In the case that wiping by-pass contact length does not reduce, the axial dimension of whole clutch can be notable with the diminution of roller length Reduce.So can just utilize inner and outer ring is much radially each relatively big axial rigidity, serves realization and both improved Respective radial rigidity, the normal pressure of all rubbing surfaces and the goal of the invention of frictional force/torque are improved again.

With continued reference to Fig. 1~2, clutch C1 be the equal of prior art is implemented shaft section intrinsic deflection its revolution friction Face, but inside and outside averagely revolution friction radius still substantially keeps constant respectively, and the external diameter of outer shroud 30 and the internal diameter of inner ring 40 are not yet The result of the modification of change.Then, those skilled in the art is readily appreciated that, it is assumed that the radial load that double cone roller 50 is subject to It is same as prior art, then, the normal force of its friction pair between interior conduit 32 and outer conduit 42, and corresponding to the method Compared with prior art it is big (but linear contact lay stress intensity is identical) with will be apparent from, that is to say, that it, which rubs, turns to the frictional force of power The transmission capacity of square compared with prior art is big (it is assumed that roller quantity is identical) with will be apparent from.Meanwhile almost it is exclusively dependent on and rubs The higher limit of the locking angle of coefficient or equlvalent coefficient of friction is wiped, compared with prior art is big with also will be apparent from.Also, due to inside and outside it All rubbing surfaces of ring are respectively provided with V-arrangement shaft section, and the lifting degree of the locking angle will be necessarily higher than the same of document CN85107128A Deng result of implementation.Such as, it is assumed that coefficient of friction is 0.1, when half cone apex angle ss increases to 60 degree by 0 degree, i.e. equlvalent coefficient of friction When increasing to 0.2, the higher limit of locking angle will increase to 22.62 degree by 11.42 degree.Then naturally, clutch C1 optimal locking angle Value, the value of prior art can be noticeably greater than, correspondingly, the reliability of wedging and the free degree of design will be able to significantly Improve.Therefore, the value of direct lifting clutch C1 locking angles, the transmission capacity/capacity bigger compared with prior art can be realized.

In addition, to improve the radial rigidity of outer shroud 30 and inner ring 40, two rings are most preferably provided with cylindrical inner or outer periphery Face, in the spacing of the circumferential annular gap at conduit axial direction both ends between both sides, significantly less than the diameter of double cone roller 50, and left end One be have uniform annular gap non-by type circular gap.Therefore, the radial height of the respective shaft section of two rings is corresponding Ground is significantly increased, that is, respective material has been arranged into radially farther away from the neutral axis of respective shaft section as much as possible The position for example at the top of notch, referring to Fig. 2.Those skilled in the art just knows according to the general knowledge of the mechanics of materials, this arrangement The module of anti-bending section of the shaft section of two ring, or shaft section will be caused to the moment of inertia of respective neutral axis, more existing skill The arrangement for the virtually rectangular shaft section that the material of art is concentrated near respective neutral axis is significantly height.Accordingly, with respect to Prior art with equal clutch internal-and external diameter and torque capacity, has particularly had as described above in clutch C1 In the case of relatively bigger locking angle higher limit, its outer shroud 30 and inner ring 40 are less prone to being significantly high radial rigidity Deformation, is less prone to destroy the geometrical condition and working condition of clutch C1 wedgings, and its work/wedging will become relatively reliable.

With continued reference to Fig. 1, in inner ring 40 each outer conduit 42 axially with one end in contrast to wedging side, that is, close to up time Pin direction side, be provided with to allow to be accommodated in double cone roller 50 in opposite in conduit 32 axially across circle lack Mouth 48.So, the circular gap of the side of breach 48, exactly allow double cone roller 50 axially across by between type circumference Gap, correspondingly, to obtain the circular gap positioned at conduit left end side that maximum radial rigidity is not provided with breach 48, it is exactly For double cone roller 50 in a manner of its center-of-curvature line is parallel to axis X, what can not all be passed through anyway is non-circumferential by type Gap.Obviously, across and through exactly axial direction is moveable into and out the operation of inside and outside conduit 32 and 42.

Preferably, the endless belt-shaped spring 70 being sleeved on the outer peripheral face of inner ring 40, by the metal system of such as spring steel sheet panel Into its is flexible but can not elongate.The circumferential both ends of the tape spring 70, most preferably welded together or with other hands Section is fixed together, to form the ring that fits in the outer peripheral face of inner ring 40 but can relatively rotate.It is relative with one group of outer conduit 42 Should, the axially middle part of tape spring 70, also it is in circumferentially to be evenly equipped with one group accordingly to accommodate the complete of double cone roller 50 Consistent window 76, referring to Fig. 8.One group window 76 can be such as rectangle or polygonal hole of circumferentially extending, and it is corresponding In the non-wedging side that the radial direction of wedge shape space broadens, that is, its circumferential side clockwise, with being provided with outer radial pre-bending It is bent for example in the elastic tongue 72 of isosceles trapezoid.One group of elasticity tongue 72, the positioning edge 79 not with window 76 can be in contact Each double cone roller 50, routinely suppress respectively to may cause to outer shroud 30 and inner ring 40 driveably connection/wedge Synthesis one rotates overall direction, to make the double cone roller 50, most preferably and as one man simultaneously with interior conduit 32 and water jacket Both side surfaces of road 42 are persistently bonded, and are remained at it and be located at the counter clockwise direction side of the outer conduit 42 shown in Fig. 1 Quasi- wedging station on.Here, elastic tongue 72 obviously can have other any required pre-bend shapes.

Undoubtedly, although pretension contributes to clutch C1 to realize high-speed rotation, carried with the loop configuration of tape spring 70 Functional reliability and easy assembling are risen, and the high accuracy that need not include weakening inner and outer ring radial rigidity makes and to reduce cost etc. excellent Point, but as it is well known, what the pretension class spring was not required relative to clutch C1, its pattern can also be known neck Any one of domain.Such as the pretension class spring can be inlaid in respectively it is straight in the outer bottom respective slots of conduit 42 Or the such as thread of bending, banding and spiral spring, even, the installation pedestal of the spring, can also be with axially put Enter the raised independent annular construction member of breach 48.In addition, the pretension class spring or by existing including such as rubber and plastics Flexible member made of interior any elastomeric material.

Most preferably, on the relevant position between the every a pair elastic windows 76 adjacent thereto of tongue 72, it is additionally provided with radially The circumferentially extending formula rotation stop block tongue 74 of interior bending.The rotation stop block tongue 74, most preferably by the axially corresponding portion in middle part of tape spring 70 The shearing of lease making impact style, it is bent to form, and it is in complementary construction most preferably to have with outer conduit 42, and substantially in isosceles ladder Radially projecting's shape of shape, so that when axially set is filled to 40 outer peripheral face of inner ring to tape spring 70, it can utilize rotation stop block tongue 74 The guide effect by the gradual interior trapezoidal hypotenuse radially extended of the inner ring surface of tape spring 70 at axial both ends, by itself radially Jack up, and rotated counterclockwise in relative inner ring 40 to outer conduit 42 positioned at side clockwise and extend to the bottom land of outer peripheral face When, automatic elastic restores and generally perpendicularly contradicted in the groove bottom, so as to prevent tape spring 70 suitable with respect to inner ring 40 Hour hands rotate trend.If desired, rotation stop block tongue 74 can also only set one, or it is close in the setting of double cone roller 50 When degree is higher, such as applied to the situation in the axle assembly of loading machine two, the end face that can also be arranged on such as tape spring 70 lacks On circumferential side or end face edge in mouthful, in the form of footpath is inwardly curved or axle inwardly curves acute angle, the week in breach 48 is contradicted To on side surface.Equally, outer conduit 42 can also be mutually communicated.

In fact, rotation stop block tongue 74 also can be formed directly at the positioning edge 79 of window 76.In addition, it can more cancel window Elastic tongue 72 in mouthfuls 76, changes the circumferential position for rigidly limiting double cone roller 50 by positioning edge 79, so that by banding bullet Spring 70 is modified to one and coordinates all double cone rollers 50 with the retainer for stepping into wedge, and between the retainer and inner ring 40 then Circumferential preloading spring is set.

During assembling, each double cone roller 50 is first passed through to the corresponding window 76 of tape spring 70 in place, by radially The interior conduit 32 of outer shroud 30 is inserted in inner side, and the hollow technique axle (not shown) using head as circular conical surface is determined from interior radial direction Position.Then the inner ring 40 being respectively aligned to each breach 48 and respective double cone roller 50, is inserted in tape spring 70 vertically Inner ring surface, and the above-mentioned technique ring of reverse ejection.As described above, rotation stop block tongue 74 will radially automatically ramp up to the outer peripheral face of inner ring 40 On, it is counterclockwise with respect to inner ring 40 after double cone roller 50 is axially into each self-corresponding water jacket road 42, then by tape spring 70 Rotate, you can rotation stop block tongue 74 is entered position.

In fact, with it is all-round to revolution conduit outer shroud 30 or one axially combination ring, by respectively have and Two taper-face rings without annular end face flange, it is formed by connecting along all cylindric interfaces 38 as shown in Figure 2.In this way, it is interior Ring 40 obtains bigger radial rigidity because that need not set breach 48, and the circular gap at both ends turns into non-by type circular gap, Above-mentioned assembly technology will no longer have that any special feature, only need that two taper-face rings finally are combined into outer shroud 30, to limit Go out all-round conduit 32 into revolution.Meanwhile the shape of tape spring 70 and layout set and will be provided with the bigger free degree.It is aobvious So, above-mentioned two taper-face ring at interface 38 can by such as screw thread (thread rotary orientation of the taper-face ring of face annular flange for no reason, Most preferably suppress direction in contrast to elastic tongue 72), interference, pin, snap ring, bonding or welding in one or more of combinations / the positioning connection that is fixedly connected, it is overall to be most preferably combined into a rigidity.But it must be noted that obtain one it is removable Or the rigid or non-rigid monoblock type outer shroud 30 that can be adjusted axially, so special benefit can be obtained.That is, when double cone roller 50th, when the surface of 42 mutual CONTACT WITH FRICTION of interior conduit 32 and outer conduit is worn, outer shroud 30 can be formed by adjusting The mode of axial spacing between two taper-face rings, the above-mentioned mechanical wear of comprehensive compensation, to maintain being basically unchanged for locking angle, from And extend clutch C1 service life.Prior art does not obviously possess this ability.

Clutch C1 work does not have any difference with prior art.Referring to Fig. 1, when outer shroud 30 is counterclockwise with respect to inner ring 40 During rotation, the double cone roller 50 under the effect of elastic tongue 72, two ring driveably will be connected into immediately/wedging is into one Rotate overall, and transmit torque in two interannular, absolutely not axial one end for double cone roller 50 occur enters wedge and another End does not enter the situation of wedge.And when outer shroud 30 rotates clockwise with respect to inner ring 40, the two will synchronously be solved because of double cone roller 50 Be drivingly connected except above-mentioned, and be transferred to surmount rotation operating mode immediately, double cone roller 50 then because of the prevention by elastic tongue 72, without It can be left and be located at the quasi- wedging station corresponding to wedging side of outer conduit 42, original place friction can only be trackslipped on the position, directly To driveably wedging next time.

It is contemplated that clutch C1 can also easily have axially repetition simultaneously as shown in above-mentioned beneficial effect explanation and Fig. 2 Arrange the multi-joint modification set.That is, by two or more operative orientations are identical and same mono-directional overrun clutch C1 completely, with institute There are inner and outer rings 40 and 30, respective correspondingly connected mode into a hard parts respectively on the axial direction of tape spring 70, be unified into more One has multiple plane rotary spaces, and the combined type mono-directional overrun clutch for the torque capacity that doubles.Wherein, it is circumferential mutual The outer conduit 42 of corresponding different groups and its breach 48 of axial right-hand member, are respectively positioned in identical circumference and radial position, And all completely same double cone rollers 50, it is provided with axis through-hole.During assembling, except sufficiently long linear with one group Steel wire, the axis through-hole for assembling double cone roller 50 corresponding to each group circumference in place is respectively correspondingly axially penetrated successively, with They are fixed simultaneously, and extracted out again beyond each steel wire after inner ring 40 is axially completely assembled to position, other assembling process are complete It is exactly the same in described above.

It is readily apparent that, will be only all in multiple circular gaps between inner and outer ring 40 and 30 in the combined type modification One of such as high order end of conduit, type circular gap can be passed through with right and wrong.In addition, the excellent construction of tape spring 70, by energy Enough ensure that each double cone roller 50 has sufficiently reliable action consistency.

Based on general knowledge, clutch C1 can obviously have deteriorates embodiment party with ball instead of double cone roller 50 Case, there can be the flexible program for exchanging the inside and outside radial position of conduit 32 and 42, and there can be other various modification sides Case.Such as outer shroud 30 from left axle to extension bitmap 2 and inner ring 40 shown in, and storage ball is set between two ring extensions Semicircle circumferential raceway, the flexible program of unilateral bearing can be obtained.Or to the outer shroud 30 shown in axial both ends extension bitmap 2 With inner ring 40, and the semicircle circumferential raceway of storage ball, then being located at inner ring 40 are set between two ring extensions The semicircle circumferential raceway of the one end of breach 48, it is transplanted to and is threadably connected to the flywheel at the end and covers, then outside outer shroud 30 One week sprocket is set on side face, the flexible program for being applied to the flywheel of bicycle or Moped Scooter can be obtained.Or will Interior conduit 32 and outer conduit 42, are separately positioned on the Figure 16 of topology layout such as the applicant in patent document CN201359032Y On periphery between shown gear wheel 216 and shift(ing) ring 70, so as to obtain two axle assemblies for loading machine gearbox.

Embodiment two：Full conduit with the surface of revolution is from reforming frictional double rolling key clutch C2

In fact, the clutch C2 as shown in Fig. 3 A~3B, 9A~9B, only to the clutch C1's in embodiment one One kind improves application, and as clutch C1, also class belongs to roller-type overrunning clutch to clutch C2, and has existing skill The repertoire of the so-called double rolling key clutch with pusher dog in art.

Wherein, substitute the thread semielliptic spring 20 of endless belt-shaped spring 70, be most preferably made up of spring steel wire, referring to figure 9A~9B, its radius of curvature of arc section 22 in plane rotary space, most preferably less than double cone roller 50a and 50b The radius of gyration of turning circle residing for center-of-curvature line.To increase its elastic and circumferentially extending length, arc section 22 is specially made Axial projection shape and formed with midpoint convex top 24.Arc section 22 is provided at both ends with two bending pawls being axially parallel to each other 26, rotationally to insert in double cone roller 50a and 50b centre bore, so as to both circumferential constantly opposite tensions.

In addition, by it is circumferential it is spaced in a manner of, clutch C2 outer conduit 42 is arranged to circumference towards reciprocal outer Two groups of conduit 42a and 42b.Every a pair of double cones roller 50a and 50b being located at respectively in outer conduit 42a and 42b, by from same Semielliptic spring 20 of one axial end in both centre bores, elastic tensioning is in respective residing wedge shape space in pairs The wedging side radially to narrow, that is, be maintained on above-mentioned quasi- wedging station.

As the drive member turned round around axis X, what pusher dog ring 90 was optimally placed in inner ring 40 faces convex top 24 Another axial end.It is provided with least one end-tooth 92, the end-tooth 92 is with setting towards the inner ring side of the end face of inner ring 40 The corresponding end-tooth 47 put on the opposing end surface of inner ring 40 coordinates, and forms an end face power transmission with certain circumferential free degree Embeding mechanism.In the radial outside of corresponding end-tooth 92, or the outer rim side in the end face of pusher dog ring 90, it is provided with radially Between outer shroud 30 and inner ring 40, and axially extended pusher dog 94 equal with the quantity of semielliptic spring 20.The pusher dog 94 is circumferential Between the wedging side of the above-mentioned wedge shape space adjacent positioned at two, its front portion is most preferably axially extending in a manner of circular gap And two corresponding double cone roller 50a and 50b outer edge surface are crossed, referring to Fig. 3 A~3B, 9A~9B.To prevent semielliptic spring 20 Axially dislocation, the apical head of pusher dog 94, is also most preferably provided with head face hump 96, the front end of the projection 96, then is provided with outer Radial protrusion 98.Pusher dog 94 it is axially mounted enter position before, utilize instrument and the mobile guide of the sloped top face of radial protrusion 98 to make With being flexibly fitted together to the convex top 24 of semielliptic spring 20 into the axial gap between projection 98 and the top end face of pusher dog 94 In.

To ensure normal work, between pusher dog 94 and two adjacent double cone roller 50a and 50b of its circumferential both sides Circular gap, there is such setting effect.That is, turn in both circumferential directions with respect to inner ring 40 corresponding to pusher dog ring 90 It is dynamic, the circumferential conflict between end-tooth 92 and 47, occur to correspond to the phase in the rotation direction in the circumferential conflict of pusher dog 94 Adjacent double cone roller 50a or 50b outer edge surface, and the latter is most preferably pushed away into above-mentioned quasi- wedging station and releases its wedging shape After state.

Then, when pusher dog ring 90 drives relative to inner ring 40 in both circumferential directions to be rotated, it will can be somebody's turn to do first Adjacent double cone roller 50a or 50b in rotation direction expels its quasi- wedging station, then by above-mentioned end face power transmission press-fit machine Structure drive the unitary rotation of inner ring 40, regardless of whether the motion state of outer shroud 30 how.But after pusher dog ring 90, which stops driving, to be rotated, inner ring 40 driving in both circumferential directions relative to pusher dog ring 90 rotates, and will all be restricted by the motion state of outer shroud 30.Such as many institutes It is known, if outer shroud 30 is fixed with frame, then, like the prior art, inner ring 40 and outer shroud 30 will first and can only be by Double cone roller 50a or 50b wedging is into a static entirety, it is impossible to has the chance for driving pusher dog ring 90 to rotate in turn again.

As described above, clutch C2 has in which will be apparent from, to compare prior art be big transmission capacity, and as described above Various beneficial effects.Moreover, in addition to end-tooth 47 and 94, above-mentioned power transmission embeding mechanism also can be as generally known by such as spending The corresponding side face tooth composition of key teeth, as long as the mechanism keeps the above-mentioned circumferential free degree and realizes above-mentioned setting effect.Separately Outside it can be appreciated that only all outer conduit 42a and 42b need to be arranged towards into same circumferencial direction, clutch C2 is just easy to become Type is the mono-directional overrun clutch with pusher dog ring, and with the identical function of similar clutch in the prior art.

It should be noted that clutch C2 also is used as the holding brake device of various especially equipment of small motor vehicles.That is, Original machine output shaft is coupled in its pusher dog ring 90, inner ring 40 is coupled in the running gear of such as wheel, has all-round to revolution The outer shroud 30 of conduit is mutually fixed with vehicle chassis/frame, two groups of double cone roller 50a and 50b for corresponding to different circumferencial directions, Then by the controlling of the same elastic guide formula operating mechanism to be linked with parking joystick (such as one non-rotatably The brake hoop from 90 different ends of pusher dog ring of inner ring 40 is arranged on, there is the circumference towards pusher dog ring 90 to be located at each pair double cone for it The end face guide protrusions of isosceles trapezoid shape between roller 50a and 50b.Not being parked, joystick is rigidly pulled away from inner ring 40 Axially release in state, the guide protrusions flexibly will axially shift to pusher dog ring with brake hoop by the radially outer edge of semielliptic spring 20 90, its trapezoidal hypotenuse will both circumferentially drive double cone roller 50a and 50b to be separated from each other), can be respectively by drivingly relative inner ring 40 circumferentially rotate certain angle, to be moved away from corresponding quasi- wedging station and be maintained on solution wedge station.Obviously, the parking braking Device is significantly better than prior art, and its parking braking torque is unrelated with handle controling power size, more without such as hydraulic pressure or electromagnetism System provides auxiliary power, and is adaptive to the sliding force of vehicle completely, can reliably ensure the effective of parking braking.It is held Gone release parking braking action after starting program and the starting program on level ground it is just the same, regardless of whether vehicle is in Go up a slope or descending, advance are still fallen back.Before power torque drives vehicle to run, parking device can be only in wedging shape State (except non-vehicle parking is in level road), vehicle can not possibly be automatically slippery, after vehicle is walked by driving, all double cones Roller 50a and 50b passively will synchronously move to solution wedge station.

Those skilled in the art obviously understands that the end face cancelled between pusher dog ring 90 and inner ring 40 in clutch C2 passes Power embeding mechanism, then by set a circumferentially positioned mechanism, to by the ring be respectively positioned at inner ring 40 it is axially extending go out (for example, with having in above-mentioned holding brake device on the different circumferential position of the two or four of the outer peripheral face of facing flange The brake hoop of the end face guide protrusions of isosceles trapezoid shape replaces pusher dog ring 90, and be set to can axial and circumferential movement), just The pusher dog ring 90 can be modified to simple verge ring.So, the axial direction by pusher dog ring 90 and/or circumferential movement, so that it may will 0 group, 1 group or all 2 groups in double cone roller 50a and 50b is kept on respective solution wedge station, so as to make clutch C2 has the complete idle running operating mode of shaft coupling, double rolling key clutch/glider or pure clutch, with outer shroud 30 and inner ring The power torque for corresponding to 2,1 or 0 circumferencial directions is directly transmitted between 40.

The circumferentially positioned mechanism can be any one of known technology, such as such as eccentric wheel and cylindrical cam etc Rotation guiding mechanism, or as the applicant Chinese patent application 200710152152.3,200810080503.9, 200810161306.X, it is numerous fixed disclosed in 200920149869.7,200910158643.8 and 201020186785.3 Position mechanism, therefore, the application necessity without explanation.

Embodiment three：Full conduit with the different surfaces of revolution is from reforming frictional double rolling key clutch C3

Referring to Fig. 4~5, as clutch C2, double rolling key clutch C3 is still two reciprocal lists of operative orientation To freewheel clutch C1 duplex, differ only in, the former is two same clutch C1 in same plane type rotary space Duplex, the latter is then rigid duplexs of two same clutch C1 in Different Plane type rotary space, with completely etc. It is same as one-way clutch C1 transmission capacity.

Wherein, two groups are arranged on the circumferential position being generally corresponding to towards opposite outer conduit 42a and 42b, and respective one Group breach 48a and 48b respectively correspondingly have identical circumference and radial position each other, and are respectively positioned on affiliated outer conduit 42a or 42b same one end in axial direction, right-hand member as shown in Figure 5.To reduce axial dimension and realizing the mutual linkage between circumference, two Individual endless belt-shaped spring 70a and 70b opposed distal edge, the radial flange 78a and 78b of outward radial bending are provided with, if The linkage block tongue 75 of radial flange 78b one group of axial direction deflection for comprising at least one is placed in, is flexibly entrenched in and is arranged at footpath Into the corresponding breach 77 on flange 78a.During assembling, as long as after inner ring 40 is in place, then circumferential mutual two bandings of the changing of the relative positions Spring 70a and 70b, you can cause linkage block tongue 75 to be flexibly embedded in breach 77.

Obviously, if the mono-directional overrun clutch of duplex differ each other/be not simple repeat, then, as sharing Must be through breach 48b, it is necessary to it is big to its own corresponding double cone roller 50b can be allowed, and positioned at its axial inner ends The degree that double cone roller 50a corresponding to breach 48a all passes through.If it is associated with more freewheel clutches, it is clear that can more Class is set to release the multi-joint setting requirements by above-mentioned duplex.

It should be noted that for convenience of illustrating, by the linkage block tongue 75 and breach 77 not on section originally in Fig. 4, one And it has been drawn on section.

In addition, being additionally provided with commutative ring 100 that can be selectively circumferentially positioned with respect to inner ring 40, it is provided with its outer peripheral face At least one breach 102, to accommodate the corresponding outer end edges edge for being arranged on tape spring 70b, and most preferably partially interior radially bending Commutation block tongue 73, the circumferential of two tape springs 70a and 70b is driven with realizing.Commutative ring 100 by it is unshowned as above Described circumferentially positioned mechanism, it is selectively circumferentially fixed with respect to inner ring 40, to provide clutch C3 outer work on demand Direction.

Most preferably, endless belt-shaped spring 70a and 70b linkage block tongue 75, breach 77, window 76a and 76b, should have with The setting effect of lower two kinds of forms.The first is the circle between two adjacent window apertures 76a and 76b positioning edge 79a and 79b All angles, greatly to the journey that can ensure two adjacent double cone roller 50a and 50b while be on respective quasi- wedging station Degree, that is, can be simultaneously on the extreme position become narrow gradually of respective wedge shape space.So, the phase of commutative ring 100 is passed through To the selectable circumferentially positioned of inner ring 40, or one of double cone roller 50a and 50b respective quasi- wedging work will not be expelled into The mode of position, clutch C3 is defined as to transmit to double rolling key clutch/glider of torque on 1 or 2 circumferencial direction Or shaft coupling.Obviously, now if setting power transmission embeding mechanism in end face between commutative ring 100 and inner ring 40, clutch C3 is incited somebody to action etc. It is same as clutch C2.Second is the circumference angle between two adjacent window apertures 76a and 76b positioning edge 79a and 79b, small To the degree that cannot ensure two adjacent double cone roller 50a and 50b while be on respective quasi- wedging station.This Sample, by the selectable circumferentially positioned of the inner ring 40 relatively of commutative ring 100, incite somebody to action or not by one of double cone roller 50a and 50b The mode of respective quasi- wedging station is driven to, clutch C3 is defined as to transmit the two-way of torque on 1 or 0 circumferencial direction Freewheel clutch/glider or the ordinary clutch definitely to dally.

It is not difficult to solve, the circumferential linkage between tape spring 70a and 70b can also be cancelled, and in the axial direction two of inner ring 40 End, a commutative ring 100 controlled respectively both this is respectively set, can be in 2,1 or 0 circumferencial directions to cause clutch C3 to have The upper ability for transmitting torque.

As it was previously stated, the pretension function needed for can obtain is defined, as the endless belt-shaped spring 70 of preloading spring, can also have There are any pattern or alternative version.For example two newly formed one of tape spring can be utilized window 76a and 76b axial direction two The respective bump on end edge edge, the elastic tongue piece in the cone face or axis hole face of suppressing double cone roller 50 is served as, or utilize positioning The outer circumferential inflection crotch that tongue at edge 79a and 79b is formed, circumferentially limits the circumferentially contracted formula steel wire of a "U" shaped The middle part of spring, and the two opposite right-angle folding bending claws that its both ends head will be arranged at, it is respectively protruding into same double cone rolling In the axis hole of son 50, or in the bottom of "U" shaped spring one radially bent projection is set, projection is advance regularly It is directly embedded into be formed in the corresponding radial slot on the periphery of the outer wedging side of conduit 42, so as to remove tape spring 70, And change the direct control in the clutch C2 similar with 50b implementations to double cone roller 50a of commutative ring 100 by corresponding construction.Separately Outside, tape spring 70 can be also modified to one, and only with coordinating, two groups of double cone roller 50a are consistent with 50b to solve wedge or puzzled wedge The retainer of function, and preloading spring is arranged on the extending axially into the projection of breach 48 of commutative ring 100, or pretension Spring is arranged to substantially in one group of circumferential expansion formula wire spring of " Z " font, and its both ends is inlaid in axially across circumference respectively In axis hole with same a pair of breach 48a and 48b of position two double cone rollers 50a and 50b.

Example IV：Full conduit with conical surface diagonal brace is from reforming frictional mono-directional overrun clutch C4

As shown in Fig. 6~7,10, clutch C4 classes belong to diagonal-bracing type freewheel clutch.With such most of clutch class Seemingly, it includes the outer shroud 30 around the revolution of same axis X, inner ring 40, as one group of conical surface diagonal brace 60 of intermediate piece, and conduct Preloading spring elastically keeps frame 80.

Wherein, it is similar with embodiment one, on the inner peripheral surface of circular outer shroud 30, most preferably it is provided with mainly by two axles To asymmetric frusto-conical surface form from bottom land to the notch gradually wide all-round interior conduit 32 to revolution, this two connect for friction Half cone-apex angle of tactile frusto-conical surface formula side surface is equal to β, and β=90 degree-ρ/2.Wherein, ρ is that the interior conduit 32 of outer shroud 30 exists Inclined-plane angle in axial plane.To reduce unloaded resistance and abrasion, should most preferably value θ ＜ ρ ＜ 180 degrees, wherein, θ is to cause Make the conical surface diagonal brace 60 and radially angle ρ of friction self-locking of outer shroud 30 maximum.Relatively interior conduit 32, its axial left end The radius of the inner peripheral surface of outer shroud 30, compare its right-hand member inner peripheral surface 36 to be small, to lift the radial rigidity of the ring as much as possible.

Similarly, on the outer peripheral face of circular inner ring 40, most preferably it is provided with mainly by two axially asymmetric truncated cones Face composition from bottom land to the notch gradually wide all-round outer conduit 42 to revolution, this two frusto-conical surface formula sides for CONTACT WITH FRICTION Half cone-apex angle on surface is equal to β ', and β '=90 degree-ρ '/2.Wherein, ρ is that the outer conduit 42 of inner ring 40 is oblique in axial plane Face angle.To reduce unloaded resistance and abrasion, should most preferably value θ ' ＜ ρ ' ＜ 180 degrees, wherein, θ ' is can to cause conical surface diagonal brace The maximum of son 60 and the radially angle ρ ' of friction self-locking of inner ring 40.Relatively outer conduit 42, the inner ring 40 of its axial left end The radius of outer peripheral face, compare its right-hand member outer peripheral face 49 be it is big, to lift the radial rigidity of the ring as much as possible.And make the water jacket The circular gap of the inside and outside interannular of 42 axial left end of road, significantly as low as conical surface diagonal brace 60 can not definitely be put down with its center-of-curvature line Row in axis X mode axially through degree, so as to pass through type circular gap as non-.

The setting of frusto-conical surface formula side surface, it is not conduit 32 and outer conduit 42 in composition as described in embodiment one It is required.As long as in fact, can with store that conical surface diagonal brace 60 in both realize radially respectively it is complementary be bonded/ Contradict, four main circumgyration faces of conduit 32 and outer conduit 42 in composition, can be to be to be based on any four curve/buses The arbitrary surface of revolution formed around axis X revolution.In this way, natural can ensure to form on two circumgyration faces of same conduit, For CONTACT WITH FRICTION part with from bottom land to the change of the radius of gyration in notch direction and constantly respectively to axial both sides Extension, so as to form at least substantially surface of revolution on truncated cone type surface, that is, by bottom land to notch gradually wide key structure spy Sign.

Accordingly, the radial outside of conical surface diagonal brace 60, it is provided with for the interior CONTACT WITH FRICTION of conduit 32 and with complementation Two frusto-conical surface formula side surfaces of formula shaft section construction, and form the friction pair of linear contact lay.Two side surfaces are two axial directions The symmetrical truncated cone type part surface of revolution 62.Accordingly, the radially inner side of conical surface diagonal brace 60, it is provided with for being rubbed with outer conduit 42 Wipe contact and with two frusto-conical surface formula side surfaces of complementary shaft section construction, and form the friction pair of linear contact lay.This two Side surface is two axially symmetric truncated cone type part surfaces of revolution 64.As described above, positioned at the truncated cone type portion of radially inner and outer both sides Divide 62 and 64 respective axial two sides of the surface of revolution, can be asymmetrically to each other, but must each have each same song respectively Rate center line, and two center-of-curvature lines can not overlap (coincidence is exactly foregoing double cone roller 50) each other.In addition, cone Face diagonal brace 60 also has side 66 and 68, the most narrow profile in plane of rotation be made up of two sides, most preferably may be used It is included between the circular gap that outer peripheral face 49 as shown in figs. 6-7 and inner peripheral surface 36 are formed, so that conical surface diagonal brace 60 can In a manner of by its gyroaxis parallel to axis X, axially it is placed between interior conduit 32 and outer conduit 42.

Preferably, it is rotatably mounted around on the outer peripheral face 49 of inner ring 40 and elastically keeps frame 80, by such as spring steel sheet panel Metal be made.This is elastically kept on the radially outer edge of plane annular matrix of frame 80, is provided with one group for example through punching mode Formed, and circumferentially-spaced the inside lobe shape bending part 82 of axle being distributed between each two conical surface diagonal brace 60, ginseng See Fig. 6,7,10.The top of each bending part 82, is radially between outer shroud 30 and the circumferential weld of inner ring 40, and axially beyond cone Face diagonal brace 60, the ligule that the annular matrix that its circumferential both sides was respectively arranged with and elastically kept frame 80 is partially separated are unilateral trapezoidal Part.The base of two unilateral trapezoidal portions is connected with bending part 82, and its hypotenuse 88 is respectively positioned on the top side of bending part 82. Unilateral trapezoidal along respective base by this two, outer radial and interior radially prebuckling are into elastic bent out portion 84 and elasticity respectively After turn of bilge 86, hypotenuse 88 is just provided with the mobile guide effect for being advantageous to installation.It can be in elastic bent out portion 84 and elasticity Interior turn of bilge 86 with bending part 82 axially insert between two adjacent conical surface diagonal brace 60 when, just this is adjacent for circumferential alignment The side 66 and 68 of two conical surface diagonal brace 60, it is automatically elastic curved so as to force turn of bilge 86 in elastic bent out portion 84 and elasticity It is bent to the operating attitude shown in Fig. 6.Bent out portion 84 and elasticity in turn of bilge 86 thus can be by all conical surface diagonal brace 60, routinely Suppress simultaneously to may cause to inner and outer ring 40 and 30 and driveably connect into one rotate overall direction, that is, make all cones Face diagonal brace 60, at the same clockwise rotation pre-pressing on the friction side surface of interior conduit 32 and outer conduit 42.

As described in embodiment one, clutch C4 equally has radial rigidity bigger compared with the prior art and friction self-locking Angle, bigger transmission capacity, conical surface diagonal brace 60 therein is set to keep its center-of-curvature line auto-paralleling in the work appearance of axis X The ability of state/position, and automatic centering are reformed the ability of posture etc. beneficial effect automatically, and analysis is almost same as above completely, is removed Increase is not locking angle but corresponded respectively to outside the friction self-locking angle of two friction conduits.Therefore, it is not repeated herein Explanation.In addition, can easily be deduced by described above, elastically keep frame 80 only have ensure conical surface diagonal brace 60 and outer shroud 30 and Inner ring 40 simultaneously constant frictional contact basic role, and no longer possess it is of the prior art maintenance its center-of-curvature line parallel to The function of axis X.This obviously weakens the original function of its retainer, naturally also just reduces and precision and installation essence are made to it The requirement of degree, this with embodiment one, each contribute to improve clutch production efficiency and reduce its production cost.

Be readily apparent that, elastically keep the effect of frame 80, be exactly to conical surface diagonal brace 60 provide it is as shown in Figure 6 clockwise from The elastic torsion power turned so that its radially can routinely elasticity contradicts simultaneously with inner and outer ring, without any type or The limitation of form.Therefore, any possible shape can be had by elastically keeping frame 80, such as, can by known retainer and Two individual members of garter spring replace.Each conical surface diagonal brace 60 can be placed in traversing with the circumferential slots on the end face of end Thread elastic ring, or, can also be by projection in order to adapt to the dense layout that the sub 60 circumferential spacing of conical surface diagonal brace are substantially reduced The layout angle of the bending part 82 of shape, favoured instead even parallel to radial direction side by being perpendicularly to the radial direction in Fig. 6~7 To, and by elastic bent out portion 84 and elasticity in turn of bilge 86, be arranged to the proper angle almost parallel with bending part 82.Or also By the bending part 82 of convex, radially outer edge and the inner edge of the plane annular matrix that elastically keeps frame 80 can be separately positioned on On, and the flexible elastic bent out portion 84 and elasticity contradicted in the side 66 and 68 of two adjacent conical surface diagonal brace 60 respectively Interior turn of bilge 86.Now, if plane annular matrix contradicts or close to inner peripheral surface 36 and outer peripheral face 49 respectively, then, for convenience Install into position, the bending direction of bent out portion 84 and interior turn of bilge 86 can also be changed.Certainly, excurvation therein can also now be cancelled Portion 84 and interior turn of bilge 86, and substantially an angle of 90 degrees is gradually reversed respectively from root directly by two radially inner and outer bending parts 82, make Respective plane faces the corresponding site of adjacent side 66 or side 68, with the radial elastic of two bending parts 82 of utilization and week Clockwise elastic torsion power is provided to elasticity to conical surface diagonal brace 60.Or when the sub 60 circumferential spacing of conical surface diagonal brace close to When zero, above-mentioned can also be favoured even parallel to the bending part 82 of radial direction, axially insert be arranged on the conical surface respectively On 60 end faces of diagonal brace, and deflect counterclockwise relative to bending part 82 in the respective slots of certain angle.

Then, this set of frame 80 is elastically kept, weakens the present invention that its position/posture keeps function in other words, Also there is the circumferentially density beneficial to increase conical surface diagonal brace 60 apparently, then further increase clutch C4 transmission energy Power/capacity, to be significantly more better than the beneficial effect of prior art.

It should be noted that for clutch C4, increase friction self-locking angle also has and had different from the special of clutch C1 Beneficial effect, that is, even without being completely eliminated, also at least essentially eliminate indivedual upsets of conical surface diagonal brace 60 so that clutch The possibility of global failure.In addition, also having different from clutch C1 beneficial effect, the conical surface diagonal brace as intermediate piece is reduced 60 circumferential width, its density of setting is not only helped increase, lifting clutch C4 transmission capacity, also contributes to reduce The width of installation circumferential weld between inner peripheral surface 36 and outer peripheral face 49, and then it is favorably improved the radial rigidity of inner and outer ring.

During assembling, by 60 right-hand member as shown in Figure 7 of all conical surface diagonal brace, the side with center-of-curvature line parallel to axis X Formula, sidewards/flatly circular passage through inner peripheral surface 36 and outer peripheral face 49, inserts interior conduit 32 and outer conduit 42 successively Between and rotational displacement to form circumferential equal cloth-like, and then will elastically keep on the outer peripheral face 49 that 80 sets of frame is attached to inner ring 40 And axially it is pushed into the limit.

Clutch C4 works fully according to the course of work commonly known in the art, necessary without explanation.

In addition, to obtain bigger radial rigidity and transmission capacity, clutch C4 can also have such modification.That is, the conical surface Diagonal brace 60, outer shroud 30 and inner ring 40 are axially upper each full symmetric, the endless belt-shaped spring 70 in similar clutch C1, pass through Annular space as small as possible is installed between two ring radial directions therebetween.Accommodating each window of conical surface diagonal brace 60 in tape spring 70 76 circumferential both sides, it is respectively provided with turn of bilge 86 in the elastic bent out portion 84 and elasticity of the ligule of an elastic-like tongue 72.All cones Face diagonal brace 60, by comprising at least for the outer conduit 42 and/or the groove bottom of the interior conduit 32 of outer shroud 30 for being arranged on inner ring 40 One group of entrance substantially radially of one, through circumference on be directed at each window 76 of the entrance successively, insert between inner and outer ring Conduit space.The entrance most preferably can be for example connected in wherein with interference by one, and the groove bottom corresponding to the entrance Sealed for the plug of its top surface.Or also can use such as embodiment one in method, by set the modes such as corresponding recesses with By on the corresponding side face of the circumferentially fixed inner ring 40 or outer shroud 30 where entrance of tape spring 70, so as to cause tape spring 70 The all-round circumferentially fixed to revolution conduit of the entrance is relatively set with, and then is made to the edge of the entrance by most preferably just circumferential It is fixed between any two conical surface diagonal brace 60, is finally inherently eliminated it and is connect with the sub 60 phase mutual friction of any conical surface diagonal brace Tactile possibility.

In fact, the endless belt-shaped spring 70 in the modification, most preferably can also be made up of such as nitrile rubber (NBR), its Each 76 circumferential both side edges of window can the direct conical surface diagonal brace 60 that is accommodated therein of elasticity pressure, without setting elastic-like tongue Turn of bilge 86 in the elastic bent out portion 84 and elasticity of 72 ligule.

Similarly, to transmit bigger torque, also multiple clutch C4 can be rigidly unified into one as described above has The freewheel clutch of multiple different plane rotary spaces, and equally there is the advantages of only needing tape spring 70.Moreover, For increase rigidity and easy to assembly, outer shroud 30 and/or inner ring 40 can be also arranged to axially combination ring as described above.

It is only the description and diagram that the present invention gives for its limited embodiments above, it is a certain degree of special to have Property, it is understood that, mentioned embodiment and accompanying drawing are all intended solely for illustrative purposes, rather than the limitation present invention And its protection domain, the various change carried out to it, equivalent, exchange and the change of structure or each member position, it will all be recognized For the spirit and scope without departing from format inventive concept.

Claims

1. a kind of full groove-passage self correction friction type overrun clutch, including：

At least outer shroud substantially annular in shape, it is provided with inner circumferential surface by bottom land to notch gradually wide at least one interior conduit, should Interior conduit at least at least generally circumferentially extends in a plane rotary space；

The inner ring at least substantially annular in shape being radially coaxially set in the outer shroud, it is provided with by groove on its outer peripheral face To notch, gradually wide at least one outer conduit, the outer conduit turn round in each described plane corresponding to the interior conduit at bottom At least generally circumferentially extend in space, also, at least one of both the outer conduit and the interior conduit, it is around the axle Line turns round all-round to revolution conduit；

Between the interior conduit and the radial direction of the outer conduit that are accommodated in each described plane rotary space at least One intermediate piece, thereon at least provided with being located at its radially inner and outer both sides respectively and respectively there is at least big of center-of-curvature line Cause to be used to distinguish with the opposite interior conduit and the outer conduit for the part surface of revolution on truncated cone type surface, the part surface of revolution Contact, to form linear contact lay friction pair, and makes the inner ring and the outer shroud can be in a relative rotation side is upwardly through this Jie's part driveably connects into one and rotates entirety, and can only be each freely rotatable on opposite relative rotation direction； And

Also include at least one material be nitrile rubber preloading spring, its be arranged to by the intermediate piece routinely suppress to The outer shroud and the inner ring can be caused driveably to connect into one and rotate overall direction；Wherein

In each described plane rotary space, the inclined-plane angle in the shaft section of the interior conduit, it is all higher than causing The maximum of the outer shroud and the intermediate piece radially inclined-plane angle of friction self-locking；And

The outer shroud of at least axial one end of at least one plane rotary space and the circular gap of the interior interannular, Non- by type circular gap, i.e. its it is all-round to maximum radial space, it is impossible to it is big to causing the plane rotary space The interior intermediate piece, can be in a manner of its described center-of-curvature line be parallel to the axis, and axially removing storage, this is described At least one degree in the outer conduit and the interior conduit of intermediate piece.

2. the freewheel clutch as described in claim 1, it is characterised in that：

It is described it is non-by type circular gap be at least substantially uniform annular gap；

One of the interior conduit and the outer conduit, it is to comprise at least one in each described plane rotary space One group respectively at least have straight line channel portion conduit, in one direction, gradual radial direction convergence is located at the straight line conduit The wedge shape sky that is all-round to revolution conduit, and limiting one therewith circumferentially and with the wedging side radially to narrow Between；

In each described plane rotary space, each described conduit with straight line channel portion, it is axially same The circumferential corresponding site in contrast to the wedging side at end, be provided with can at least allow to be accommodated in it is opposite it is described it is all-round to Turn round conduit in the intermediate piece axially across breach；

In each described plane rotary space, the intermediate piece is the institute being accordingly accommodated in the straight line conduit Two center-of-curvature lines are stated to be completely superposed and there are two all-round one group of rollers to the surface of revolution；And

In each described plane rotary space, the straight line conduit and all-round at least the using to revolution both conduits In the side surface of CONTACT WITH FRICTION, geometrically identical axial section shape is respectively provided with, the axial section shape is corresponding to the roller Axial section shape is in complementary construction.

3. the freewheel clutch as described in claim 2, it is characterised in that：

The breach has semicircular profile inner surface；

The inner ring and the outer shroud are annulus；

Remaining the described circular gap for not including the barbed portion has identical radial clearance；And

The preloading spring is to be sleeved on the annular being provided with described in one group on the periphery of the conduit with straight line channel portion Tape spring, it corresponds to the corresponding site of each conduit, is provided with one group accordingly to accommodate the rolling The circumferentially extending type window of son, the circumferential side in contrast to the wedging side of each window, is provided with sustainability Ground suppresses the elastic tongue of the corresponding side outer peripheral face of the roller, at least one elastic tongue window adjacent thereto Between circumference, the aduncate rotation stop block tongue in a footpath is provided with, the rotation stop block tongue is configured to circumferentially to contradict to described The corresponding circumferential flank surface of breach, and the groove for extending close to the periphery of the conduit with straight line channel portion On one in bottom surface, to provide circumferential support for the elastic tongue.

4. the freewheel clutch as described in claim 3, it is characterised in that：

The quantity of one group of plane rotary space is no less than two；

The roller in the different plane rotary spaces has completely the same profile；

The breach in the different plane rotary spaces, respectively accordingly there is completely the same profile, And identical circumference and radial position；And

It is described non-by type circular gap only with the circular gap of the axial reverse outermost end of the breach.

5. the freewheel clutch as described in claim 2, it is characterised in that：

The breach has semicircular profile inner surface；

The inner ring and the outer shroud are annulus, it is described it is all-round to revolution conduit be the interior conduit, described one group have it is straight The conduit of line channel portion is the outer conduit；

It is also arranged circumferentially spaced to there is one group at least to have with the outer conduit at least one plane rotary space Roughly the same construction but circumference are towards one group of contrast reverse outer conduit；

Also include a pusher dog ring being coaxially set with the inner ring, it is provided with least on the end face of the inner ring The pusher dog that one axial direction is goed deep between the outer shroud and the inner ring radial direction, the pusher dog are circumferentially located at two adjacent wedges Between two wedging sides in shape space, it is arranged in this two adjacent wedge shape spaces its anterior circular gap Two rollers outer edge surface between；

Also include a power transmission embeding mechanism in end face with certain circumferential free degree, its end-tooth is separately positioned on the inner ring On the relative end face of the pusher dog ring；And

The circumferential free degree is with the circular gap with such setting effect, i.e. exists corresponding to the pusher dog ring Circumferential conflict on two circumferencial directions between the rotation of the inner ring, the end-tooth, occurred in pusher dog week To after the adjacent roller contradicted on upper same circumference direction.

6. the freewheel clutch as described in claim 1, it is characterised in that：

The interior conduit and the outer conduit are described all-round to revolution conduit；And

The intermediate piece in each described plane rotary space, it is oblique to be that two center-of-curvature lines do not coincide Chapelet.

7. the freewheel clutch as described in claim 6, it is characterised in that：

In the circular gap at the axial both ends of each plane rotary space, only one is described non-circumferential by type Gap；And

It is at least substantially in circular spring that the preloading spring, which is provided between the inner ring and the outer shroud, and it is annular The convex bending part axially stretched between circumferentially-adjacent diagonal brace of each two, each bending part are provided with matrix The circumferential both sides in the plane rotary space, be provided with routinely suppress respectively two it is adjacent it is described tiltedly The elastic bend part of the ligule of the opposite flank of chapelet.

8. the freewheel clutch as described in claim 6, it is characterised in that：

The circular gap at the axial both ends of each plane rotary space, it is described non-by type circular gap；

At least one groove bottom of the outer conduit and the interior conduit both sides in each described plane rotary space, It is provided with least one entrance substantially radially that diagonal brace can be allowed to pass through；And

The preloading spring is provided in the endless belt-shaped spring between the inner ring and the outer shroud, and it corresponds to each institute The corresponding site between diagonal brace is stated, is circumferentially provided with one group accordingly to accommodate the window of diagonal brace, this is every The circumferential both side edges of one window or the tongue-shaped elastic bending section extended by the lateral margin, suppress to equal sustainability same institute State the corresponding site of the circumferential both sides of diagonal brace.

9. the freewheel clutch as described in claim 8, it is characterised in that：Also include being arranged in the entrance and with the entrance Corresponding groove bottom is the plug of its top surface.

10. the freewheel clutch as described in claim 8, it is characterised in that：The preloading spring is to cause any diagonal brace The sub not mode with the edge CONTACT WITH FRICTION of the entrance, it is relatively set with the described all-round circumferential to revolution conduit of the entrance It is fixed.

11. as the freewheel clutch described in any one of claim 1~10, it is characterised in that：The outer conduit and the inside groove The side surface for CONTACT WITH FRICTION in both roads, it is one of frusto-conical surface and plane, correspondingly, the intermediate piece is double cone rolling One of son and conical surface diagonal brace.

12. as the freewheel clutch described in any one of claim 1~10, it is characterised in that：The interior conduit, the outer conduit With it is at least one in the intermediate piece, there is the axially upper full symmetric side surface for CONTACT WITH FRICTION.

13. as the freewheel clutch described in any one of claim 1~10, it is characterised in that：It is provided with described all-round to revolution It is at least one in the inner ring and the outer shroud of conduit, it is an axially combination ring, it is at least by interference fit, spiral shell A kind of connecting mode in line/helical tooth, snap ring, pin, bonding and welding is formed by connecting.