CN106641022A - Friction plate type peripheral spiral surface pressing overrunning clutch - Google Patents
Friction plate type peripheral spiral surface pressing overrunning clutch Download PDFInfo
- Publication number
- CN106641022A CN106641022A CN201611209643.2A CN201611209643A CN106641022A CN 106641022 A CN106641022 A CN 106641022A CN 201611209643 A CN201611209643 A CN 201611209643A CN 106641022 A CN106641022 A CN 106641022A
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- Prior art keywords
- helicoid
- friction plate
- clutch
- couple
- inner ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D41/069—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface the intermediate members wedging by pivoting or rocking, e.g. sprags
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D47/00—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings
- F16D47/06—Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the preceding guide headings of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D41/00—Freewheels or freewheel clutches
- F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
- F16D2041/0605—Spring details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0212—Details of pistons for master or slave cylinders especially adapted for fluid control
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Operated Clutches (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The invention discloses a friction plate type peripheral spiral surface pressing overrunning clutch. The friction plate type peripheral spiral surface pressing overrunning clutch is characterized by comprising a self-locking/overrunning control device for controlling separation and combination of friction plates; the self-locking/overrunning control device includes a first spiral surface piece and a second spiral surface piece; a first spiral surface is arranged on the first spiral surface piece; the second spiral surface piece is provided with a second spiral surface matched with the first spiral surface; the first spiral surface piece is fixedly connected with a support main body; the second spiral surface piece is fixedly connected with an inner hub/outer drum; the second spiral surface piece is positioned between the support main body and the first spiral surface piece; and the second spiral surface piece can spirally slide corresponding to the first spiral surface piece. The friction plate type peripheral spiral surface pressing overrunning clutch is a surface contact overrunning clutch; and compared with traditional point contact, line contact and radial surface contact clutches, the friction plate type peripheral spiral surface pressing overrunning clutch can effectively transfer high-torque and high-moment power, is higher in reliability, and can satisfy the demands of such bad working conditions as high speed, high frequency and heavy load.
Description
Technical field
The present invention relates to a kind of freewheel clutch.
Background technology
In prior art, freewheel clutch has a various structures pattern, including ratchet-type, roller oblique slot type, wedge formula and
Chain ring type etc., but the freewheel clutch of these structures all has many deficiencies：
Ratchet type overrunning clutch is mainly made up of the multiple springs of foreign steamer, ratchet, ratchet and blade.When foreign steamer is relative to spine
Take turns to a direction rotate when, ratchet blocks ratchet, and foreign steamer is connected as a single entity and synchronous rotary with ratchet, and clutch is in locking shape
State；When foreign steamer rotates relative to ratchet to another direction, relative slip is produced between ratchet and ratchet, foreign steamer becomes freely
Wheel, clutch is in free state.The ratchet of this clutch is restricted that (the relative foreign steamer of ratchet is each with the bonding station of ratchet
At least rotate the angle of a ratchet, just can guarantee that ratchet is engaged with ratchet), engagement when generation greater impact and noise, instead
Should be not sensitive enough, it is only applicable to low speed, low frequency transmission.
Roller oblique slot type freewheel clutch is made up of outer shroud, inner ring, roller, the multiple springs of roller reset etc..In outer shroud
Surface or interior ring outer surface are formed with the wedge-shaped slot for accommodating roller, and wedge-shaped slot is multiple built with roller and its multiple springs that reset
The elastic force of spring pushes each roller to wedge-shaped slot narrower one end.When outer shroud is rotated relative to one direction of interior ring, opening
Begin to rotate in a flash, roller is just stuck in the narrower one end of wedge-shaped slot in the presence of frictional force and multiple spring forces, in
It is that inner and outer ring is mutually connected as a body, it is impossible to relatively rotate, now freewheel clutch is in lockup state；When outer shroud is relative to inner ring
When rotating to another direction, roller overcomes the elastic force of multiple springs in the presence of frictional force, roll to wedge-shaped slot it is wider one
, there is skidding in end, outer shroud relative to inner ring can free rotary, now freewheel clutch depart from locking and be in free shape
State.Because roller and inner and outer rings are in all the time linear contact lay state, thus this clutch is only applicable to middling speed, the occasion of low frequency,
Highest frequency is less than 150 beats/min；In addition wedge shape groove processing is more complicated, and manufacturability is poor, it is desirable to using high rigidity and high-wearing feature
Material, also require that the center portion of roller has toughness in addition, the load that can withstand shocks is avoiding fragmentation.
Wedge formula freewheel clutch is similar with the structure of roller oblique slot type freewheel clutch, also by outer shroud, inner ring and is located at
The composition such as roller between outer shroud and inner ring.From unlike roller oblique slot type clutch：All without wedge shape on its outer shroud and inner ring
Groove, its roller is the wedge of special shape.Wedge is shaped like in parallelogram, a diagonal side of parallelogram
To be slightly larger in dimension than the distance between inner and outer ring, the distance being dimensioned slightly smaller than between inner and outer ring of another diagonal.
When quite interior one direction of ring of outer shroud rotates, wedge is erect in the presence of frictional force, is stuck because of self-locking action
Between inner and outer ring, inner and outer ring relative cannot trackslip, and now clutch is in lockup state；When outer shroud equivalent to interior ring another
When direction rotates, wedge is toppled in the presence of frictional force, departs from lockup state, and inner ring relative can be slided with outer shroud, now
Clutch is in free state.Contact because wedge and inner and outer ring are all, thus not only wedge is prone to wear out, and reacts ineffective
It is quick, and high speed, high frequency, the occasion of heavy duty cannot be applied to, in addition wedge processing technology is more complicated, and manufacturability is poor, produces into
This height.
In order to overcome the shortcomings of above-mentioned radial point (or line) contact clutch, occur in that a kind of radial direction face contact type surmounts
Clutch --- chain ring type overrunning clutch.Send out for No. CN1206077 disclosed in 27 days January in 1999 of China national Department of Intellectual Property
Bright patent application prospectus, disclose a kind of " chain ring type is single, double to freewheel clutch ", the clutch by overcoat, inner core,
Operating key and chain link are constituted.Chain link is placed between overcoat and inner core, is made up of the first-in-chain(FIC) being sequentially connected, multiple chain links and last-of-chain；
Insert simultaneously in the rectangular through holes of first-in-chain(FIC) and chain tail end one end of operating key so that first-in-chain(FIC) is overlapped with last-of-chain, the other end is inserted
In entering the dovetail groove of overcoat.Adjusting pin is provided between chain link at mutual clasp joint.Put outward and be fixed with the multiple springs of pretension, pretension
The other end of multiple springs is mutually fixed with chain link.Operating key is stirred by overcoat so that chain link tightly embraces inner core and realizes self-locking.
The clutch is although joint element is face contact, and reverse opening force is little, not easy to wear；But chain link is easily received with the splicing results of inner core
The impact of clutch rotary speed, such as when clutch runs up, chain link unclamps because centrifugal force is excessive with inner core, thus
This freewheel clutch is not suitable for high-speed drive, it is impossible to be applied to the field that such as automotive transmission requirement must run up
Close；In addition chain ring type overrunning clutch transmitting torque fully relies on operating key and undertakes, and the extrusion stress of operating key contact portion is very
Greatly, service life is affected, it is very high for the material and manufacturing process requirement of operating key.
The content of the invention
Many deficiencies of the prior art mentioned in overcome above-mentioned background, the invention provides one kind is passed by friction plate
Torque delivery, carry out compressing the freewheel clutch of locking using all cloth helicoids, being capable of effectively transmitting large torque, it is adaptable to high
Speed, high frequency, the occasion of heavy duty.
The present invention the first technical solution be：
A kind of friction disk type week cloth helicoid compresses freewheel clutch, including the clutch limit being arranged on same rotation axis
Position device 1, outer ring load transfer device 2, inner ring load transfer device 3；
Clutch stopping means 1 includes the supportive body 11 connected with the input shaft of clutch；
Outer ring load transfer device 2 includes external drum 22 and the multiple outer ring friction plates 21 being arranged in external drum, outer ring friction plate 21
Relative slip can be made axially with respect to external drum, circumferentially with external drum synchronous rotary；
Inner ring load transfer device 3 includes interior hub 32 and the multiple inner ring friction plates 31 being arranged on outside interior hub, inner ring friction plate 31
Relative slip can be made axially with respect to interior hub 32, circumferentially with interior hub synchronous rotary；
Outer ring friction plate 21 and inner ring friction plate 31 constitute friction element；
Multiple outer ring friction plates 21 and multiple inner ring friction plates 31 are alternately arranged vertically；
Two force transfer ends of supportive body 11 and external drum 22 respectively as clutch；
It is characterized in that：
The freewheel clutch also include for control outer ring friction plate 21 and inner ring friction plate 31 point with the self-locking of conjunction/
Surmount control device；
The self-locking/surmount control device including the first helicoid couple 13 and the second helicoid couple 14；
The first helicoid 131 is provided with first helicoid couple 13；Arrange in the mating surface of the second helicoid couple 14
There is the second helicoid 141 being engaged with the first helicoid 131；
The first helicoid couple 13 is connected with supportive body 11, and the second helicoid couple 14 is connected with interior hub 32；The
Two helicoid couples 14 are located between the helicoid couple 13 of supportive body 11 and first, and the second helicoid couple 14 is relative to first
Helicoid couple 13 can make spiral slip.
When supportive body 11 has rotating tendency relative to external drum 22 in the presence of torsional moment, moment of torsion is by with second
The connected interior hub 32 of helicoid couple 14 is transmitted, and interior hub 32 drives inner ring friction plate 31 to move axially, and makes the He of inner ring friction plate 31
Outer ring friction plate 21 is engaged, and is outwards transmitted finally by external drum 22.
Based on above-mentioned basic technical scheme, the present invention also makes defined below and/or optimization：
Above-mentioned clutch stopping means 1 also includes back-up ring 12；Above-mentioned supportive body 11 is band neck circular ring structure, during its neck is
Hollow round column, its bottom is overhanging annulus 111；The neck lateral surface of supportive body 11 is provided with circlip groove 114 and limited step
112；Back-up ring 12 is arranged in circlip groove 114；Back-up ring 12 and limited step 112 are used to fix the axial direction of the first helicoid couple 13
Position；The annulus of supportive body 11 is used to limit the axial location of inner ring friction plate 31 and outer ring friction plate 21.
In order that freewheel clutch controllability is more preferably, above-mentioned freewheel clutch also includes additional clutch control device；It is described
Additional clutch control device includes the annular control cylinder being arranged in external drum 22；The annular control cylinder includes the He of cylinder body 7
Connection main body 6 and the platen 5 being arranged between cylinder body 7 and connection main body 6；The cross section of platen 5 is approximately U-shaped；The pressure
Multiple springs 4 are provided between the bottom end face and connection main body 6 of disk 5；One of top of the platen 5 is housed inside cylinder
In body 7, the piston of annular control cylinder is constituted, sealing grease chamber is constituted between the top end face and cylinder body 7；The platen 5 it is another
One top end face is used to compress the friction element.
In order that the control of the freewheel clutch of the present invention is sensitiveer, on the basis of above-mentioned basic technical scheme, this
It is bright to increased multiple holddown springs 4, to eliminate the gap between friction element so that being quick on the draw during freewheel clutch self-locking can
Lean on, be unlikely to produce when surmounting and excessive drag power.The arrangement of holddown spring 4 mainly has following several：
1st kind of form arrangement (referring to Fig. 6)：
Multiple holddown springs 4 are arranged between the helicoid couple 13 of supportive body 11 and first.
2nd kind of arrangement (referring to Fig. 9)：
Positioning and guiding groove is set on supportive body 11；Platen 5 is set between positioning and guiding groove and friction element；It is multiple
Holddown spring 4 is arranged between platen 5 and positioning and guiding groove.
3rd kind of arrangement (referring to Fig. 7)：
Multiple holddown springs 4 are additionally arranged between the helicoid couple 14 of supportive body 11 and second.
4th kind of arrangement (referring to Figure 11)：
Piston 15 is set between supportive body 11 and friction element；Multiple holddown springs 4 are arranged on the He of supportive body 11
Between piston 15.
The helicoid couple that above-mentioned freewheel clutch should be made produces self-locking, and helicoid couple automatic unlocking is can guarantee that again,
Above-mentioned first helicoid couple 13, the second helicoid couple 14, outer ring friction plate 21 and inner ring friction plate 31 meet following condition：
In formula, β is the Mean Spiral Angle of the helicoid effective contact part of two helicoid couples；
μ is the coefficient of friction between outer ring friction plate 21 and the friction pair of inner ring friction plate 31；
μ ＇ are the coefficient of friction between the helicoid of two helicoid couples；
N is inner ring friction plate, the little value of effective piece number of outer ring friction plate.
The present invention second technical solution be：
A kind of friction disk type week cloth helicoid compresses freewheel clutch, including the clutch limit being arranged on same rotation axis
Position device 1, outer ring load transfer device 2, inner ring load transfer device 3；
Clutch stopping means 1 includes the supportive body 11 connected with the housing of clutch；
Outer ring load transfer device 2 includes external drum 22 and the multiple outer ring friction plates 21 being arranged in external drum, outer ring friction plate 21
Relative slip can be made axially with respect to external drum, circumferentially with external drum synchronous rotary；
Inner ring load transfer device 3 includes interior hub 32 and the multiple inner ring friction plates 31 being arranged on outside interior hub, inner ring friction plate 31
Relative slip can be made axially with respect to interior hub 32, circumferentially with interior hub synchronous rotary；
Outer ring friction plate 21 and inner ring friction plate 31 constitute friction element；
Multiple outer ring friction plates 1 and multiple inner ring friction plates 31 are alternately arranged vertically；
Two force transfer ends of supportive body 11 and interior hub 32 respectively as clutch；
It is characterized in that：
The freewheel clutch also include for control outer ring friction plate 21 and inner ring friction plate 31 point with the self-locking of conjunction/
Surmount control device；
The self-locking/surmount control device including the first helicoid couple 13 and the second helicoid couple 14；
The first helicoid 131 is provided with first helicoid couple 13；
The second helicoid 141 being engaged with the first helicoid 131 is provided with second helicoid couple 14；
The first helicoid couple 13 and the supportive body 11 are connected, the second helicoid couple 14 and the external drum 22
It is connected；Second helicoid couple 14 is located between the helicoid couple 13 of supportive body 11 and first；The phase of second helicoid couple 14
Slide for the first helicoid couple 13 can make spiral.
Moment of torsion when interior hub 32 has rotating tendency relative to supportive body 11 in the presence of torsional moment, on interior hub 32
Outwards transmission is engaged with outer ring friction 21 by inner ring friction 31, finally by the external drum 22 being connected with the second helicoid couple 14
Transmit to supportive body 11 with the first helicoid couple 13.
Based on above-mentioned basic technical scheme, the present invention also makes defined below and/or optimization：
Above-mentioned supportive body 11 is circular ring structure, and supportive body 11 is used to limit inner ring friction plate 31 and outer ring friction plate 21
Axial location.
In view of transmission force property and processing technology, oriented friction plate direction is set on the end face of above-mentioned supportive body 11 and is stretched out
Annular protrusion 111, the position of annular protrusion 111 is corresponding with the contact surface of outer ring friction plate and inner ring friction plate (referring to figure
2)。
In order that freewheel clutch controllability is more preferably, above-mentioned freewheel clutch also includes additional clutch control device；It is additional
Clutch for clutch control has following several versions：
1st kind (referring to Fig. 2 c)：
The additional clutch control device includes the circular cylinder being arranged in supportive body 11, is arranged in circular cylinder
Piston 15, multiple springs 4 for being arranged between the second helicoid couple 14 and piston 15；In an end face of the piston 15
On be provided with compression end face, it is described to compress end face is located at spring 4 one for compressing outer ring friction plate 21 and inner ring friction plate 31
Side；Sealing grease chamber is constituted between another end face and the circular cylinder of the piston 15.
2nd kind (referring to Fig. 2 d)：
The additional clutch control device includes the circular cylinder being arranged in supportive body 11, is arranged in circular cylinder
Piston 15, be arranged between the first helicoid couple 13 and piston 15 platen 16, be arranged on the helicoid of platen 16 and first
Multiple springs 4 between couple 13；Sealing grease chamber is constituted between one end face of the piston 15 and the circular cylinder；It is described
Another end face of piston 15 is contacted just to the platen 16 and with platen 16；In the helicoid couple 14 of the platen 16 and second
Mutually spacing step is provided with, the step on platen 16 can promote the step in the second helicoid couple 14 to piston 15
Move in direction.
3rd kind (referring to Fig. 8)
The additional clutch control device includes the circular cylinder being arranged in the second helicoid couple 14, is arranged on annular
Piston 15 in cylinder body, the multiple springs 4 being arranged between the helicoid couple 14 of supportive body 11 and second；The piston 15
Sealing grease chamber is constituted between one end face and the circular cylinder；Another end face of the piston 15 and the second helicoid couple
14 contacts.
In order that the control of the freewheel clutch of the present invention is sensitiveer, on the basis of above-mentioned basic technical scheme, this
It is bright to increased multiple holddown springs 4, to eliminate the gap between friction element so that being quick on the draw during freewheel clutch self-locking can
Lean on, be unlikely to produce when surmounting and excessive drag power.The arrangement of holddown spring 4 mainly has following several：
1st kind of arrangement (referring to Fig. 7)：
Multiple holddown springs 4 are additionally arranged between the helicoid couple 14 of supportive body 11 and second.
2nd kind of arrangement (referring to Figure 11)：
Piston 15 is set between supportive body 11 and friction element；Multiple holddown springs 4 are arranged on the He of supportive body 11
Between piston 15.
The helicoid couple that above-mentioned freewheel clutch should be made produces self-locking, and helicoid couple automatic unlocking is can guarantee that again,
Above-mentioned first helicoid couple 13, the second helicoid couple 14, outer ring friction plate 21 and inner ring friction plate 31 meet following condition：
In formula, β is the Mean Spiral Angle of the helicoid effective contact part of two helicoid couples；
μ is the coefficient of friction between outer ring friction plate 21 and the friction pair of inner ring friction plate 31；
μ ＇ are the coefficient of friction between the helicoid of two helicoid couples；
N is the little value in inner ring friction plate, effective piece number of outer ring friction plate.
It is an advantage of the invention that：
1st, compared with other types freewheel clutch, freewheel clutch provided by the present invention is face contact type overdrive clutch
The friction element of device, active part and secondary part is axial arranged, is compressed by the active force between two helicoid couples and is rubbed
Element is wiped, by the frictional force transmission torque between friction element, existing point contact, linear contact lay and radial direction face contact type clutch is compared
Device, can effectively transmitting large torque and high-torque power, reliability is higher, disclosure satisfy that the bad working environments such as high speed, high frequency, heavy duty
Needs.
2nd, the first helicoid couple of the invention and the second helicoid couple, and outer ring friction plate and inner ring friction plate are along axle
To being arranged in order arrangement, therefore the locking of freewheel clutch and unblock are not affected by rotating speed, and limitless rotating speed is limited, and is engaged flat
Surely, without impact, noise.
3rd, two helicoid couples of the invention can be arranged in the radial position of friction plate, therefore axial dimension is little, system
Make process is simple.
4th, the position of helicoid couple of the present invention flexibly, can be disposed at friction element inner side or axially with friction
Elements side by side, also can be disposed at friction element outside, with specific reference to being actually needed flexible design.
5th, the present invention easily can be combined together ordinary clutch and freewheel clutch, and power transmission when constituting unblock can
The combined clutch of control, while the function with overdrive clutch and common clutch, the scope of application is wider.
6th, contacting by face for the present invention transmits torque, thus wearability is good, long service life.
Description of the drawings
Fig. 1 is the interior sectional arrangement drawing for compressing freewheel clutch of friction disk type week cloth helicoid of the present invention；(embodiment 1)
Fig. 1 a and Fig. 1 b are respectively the three-dimensional exploded view of clutch two shown in Fig. a kind different visual angles；
Fig. 1 c are the sectional arrangement drawing that interior compression freewheel clutch shown in Fig. 1 is combined as a whole with ordinary clutch；(implement
Example 2)
Fig. 2 is the sectional arrangement drawing of all cloth helicoid external compression freewheel clutches of friction disk type of the present invention；(embodiment 3)
Fig. 2 a and Fig. 2 b are respectively the three-dimensional exploded view of two kinds of different visual angles of clutch shown in Fig. 2；
Fig. 2 c are the assembling section view being combined as a whole with a kind of ordinary clutch in external compression freewheel clutch shown in Fig. 2
Figure；(embodiment 4)
Fig. 2 d are the assembling section view that external compression freewheel clutch shown in Fig. 2 is combined as a whole with another kind of ordinary clutch
Figure；(embodiment 5)
Fig. 2 d-1 and Fig. 2 d-2 are respectively the three-dimensional exploded view of two kinds of different visual angles of clutch shown in Fig. 2 d；
Helicoid on the fitting surface of Fig. 3 helicoid couples of the present invention forms schematic diagram；
Fig. 4 is the assembly relation schematic diagram of two helicoid couples of the invention；
Fig. 5 is the structural principle rough schematic view of freewheel clutch shown in Fig. 1 and Fig. 2；
Fig. 6 is that the interior freewheel clutch that compresses increases the rough schematic view (embodiment 7) of multiple springs shown in Fig. 1；
Fig. 7 is the rough schematic view (embodiment 8) that freewheel clutch shown in Fig. 1, Fig. 2 increases multiple springs；
Fig. 8 is the rough schematic view (embodiment 6) that external compression freewheel clutch shown in Fig. 2 increases multiple springs；
Fig. 9 is that the interior freewheel clutch that compresses increases the rough schematic view (embodiment 9) of multiple springs shown in Fig. 1；
Figure 10 is interior compression overrun clutch structure rough schematic view shown in Fig. 1 c；
Figure 11 is Fig. 1, the rough schematic view (embodiment 10) of the multiple springs of the increase of freewheel clutch shown in 2；
Figure 12 is overrun clutch structure rough schematic view shown in Fig. 2 c；
Figure 13 is overrun clutch structure rough schematic view shown in Fig. 2 d；
Figure 14 is the force analysis schematic diagram of freewheel clutch shown in Fig. 1 of the present invention and Fig. 2.
Specific embodiment
Embodiment 1：Freewheel clutch is compressed in all cloth helicoids of friction disk type
Referring to Fig. 1, Fig. 1 a, Fig. 1 b and Fig. 5, freewheel clutch is compressed in all cloth helicoids of friction disk type includes same center rotation
Clutch stopping means 1, outer ring load transfer device 2, inner ring load transfer device 3 and the friction for controlling clutch that shaft axis are arranged
Chip bonding and detached self-locking/surmount control device.
1st, outer ring load transfer device
Outer ring load transfer device 2 includes multiple outer ring friction plates 21 with external tooth 211 and an external drum with internal tooth 221
22；External drum 22 is sleeved on outside outer ring friction plate 21, and the internal tooth 221 of external drum 22 is engaged with the external tooth 211 of outer ring friction plate 21；Outward
Drum 22 vertically can be with relative movement, along the circumferential direction synchronous rotary with outer ring friction plate 21.
2nd, inner ring load transfer device
Inner ring load transfer device 3 includes multiple inner ring friction plates 31 with internal tooth 311 and an interior hub with external tooth 321
32；Inner ring friction plate 31 is sleeved on outside interior hub 32, and the external tooth 321 of interior hub 32 is engaged with the internal tooth 311 of inner ring friction plate 31；It is interior
Hub 32 vertically can be with relative movement, along the circumferential direction synchronous rotary with inner ring friction plate 31.
It is additionally provided with the periphery of one end thereof on interior hub 32 and limits inner ring friction plate 31 and outer ring friction plate 21
The step 322 and catch 33 of axial location；Step 322 blocks catch 33, places restrictions on the end that catch 33 skids off interior hub 32；Catch 33
For limiting the axial location of inner ring friction plate 31 and outer ring friction plate 21, prevent inner ring friction plate 31 and outer ring friction plate 21 from sliding
Go out interior hub 32.
Outer ring load transfer device 2 is sleeved on outside inner ring load transfer device 3, the outer ring friction plate 21 of outer ring load transfer device 2 and inner ring
The inner ring friction plate 31 of load transfer device 3 is alternate vertically to be arranged and is all located between catch 33 and clutch stopping means 1.
Above-mentioned outer ring friction plate 21 and inner ring friction plate 31 constitute friction element.
3rd, clutch stopping means
Clutch stopping means 1 mainly includes the supportive body 11 connected with the input shaft of clutch.
Supportive body 11 is band neck circular ring structure, and its neck is hollow circuit cylinder, and its bottom is overhanging circle radially
Ring 111.
Overhanging annulus 111 can limit the axial location of inner ring friction plate 31 and outer ring friction plate 21, be easy to friction plate
Compressed.
The periphery of hollow circuit cylinder is disposed with vertically limited step 112, for the of circumferencial direction transmitting torque
The circlip groove 114 of one spline 113 and restriction loaded on other parts axial location on the hollow circuit cylinder, wherein, limited step
112 near overhanging annulus 111；The inner circumferential of hollow circuit cylinder is provided with for the second spline 115 of outwards transmission power.
4th, self-locking/surmount control device
Self-locking/surmount control device including the first helicoid couple 13 and the second helicoid couple 14.
Multiple first helicoids 131 are along the circumferential direction evenly arranged with the mating surface of the first helicoid couple 13；Second
Along the circumferential direction it is evenly arranged with, shape equal with the quantity of the first helicoid 131 in the mating surface of helicoid couple 14 to be adapted
The second helicoid 141.
First helicoid 131 and the second helicoid 141 can also be left-handed with dextrorotation, rotation direction and clutch transmission torque
Directional correlation：Referring to Fig. 1,1a and 1b, torsional moment is applied on supportive body 11, is seen from left to right in shown position, when
When supportive body 11 has clockwise rotating tendency relative to external drum 22 in the presence of torsional moment, if the first helicoid
131 and the dextrorotation of the second helicoid 141 (rotation direction of diagram is dextrorotation), then under this moment loading freewheel clutch in surmounting
State；If the first helicoid 131 and the second helicoid 141 are left-handed, freewheel clutch is in locking shape under this moment loading
State, the moment of torsion on supportive body 11 is by the first helicoid couple 13 and the connected interior hub 32, inner ring of the second helicoid couple 14
Friction plate 31, outer ring friction plate 21 and external drum 22 are outwards transmitted.
First helicoid couple 13 be sleeved on the first spline 113 by wherein disc flower key 132 (end convolution face towards
Hold round anchor ring 111 to install), and lean against on limited step 112, coordinated by the first spline 113 and central spline 132, make first
Helicoid couple 13 is relative to supportive body 11 without circumferentially rotating；Back-up ring 12 is arranged in circlip groove 114, back-up ring 12 and limiting stand
Rank 112 fixes the axial location of the first helicoid couple 13 jointly, makes the first helicoid couple 13 relative to the nothing of supportive body 11
Axial movement.
Second helicoid couple 14 be installed in interior hub 32 and with interior hub 32 be fixed with one part (it is actual implement when can including
Process the second helicoid 141 on the end face of hub 32, or the catch 33 being fixed on interior hub 32 away from friction element end face
The second helicoid 141 of upper processing), it is sleeved on supportive body 11 entirely through the centre bore 142 of the second helicoid couple 14, and
And second helicoid couple 14 be located at interior hub 32, in the space that the helicoid couple 13 of supportive body 11 and first is formed, and the
Two helicoid couples 14 can make spiral and slide relative to the first helicoid couple 13.When the second helicoid couple 14 is relative to
During one helicoid couple, 13 spiral slip certain distance (now the second helicoid couple 14 and the first helicoid couple 13 it
Between space increased) outer ring friction plate 21 and the mutual compressive engagement of inner ring friction plate 31 transmission torque.
The torque input end and torque output of supportive body 11 and external drum 22 respectively as clutch；Or, support master
The torque output and torque input end of body 11 and external drum 22 respectively as clutch.
Embodiment 2：The controllable clutch one of power transmission
Clutch shown in Fig. 1 c and Figure 10 is the controllable clutch of power transmission, the work(with freewheel clutch and ordinary clutch
Can, it is adaptable to can control whether to need transmitting torque in the case where state is surmounted, and suitable under hydraulic system pressure-less state
Need the operating mode of transmitting torque.
Clutch shown in Fig. 1 c is on the architecture basics of embodiment 1, to increased an additional clutch control device, and this is attached
Plus clutch control device, including an annular control cylinder being arranged in external drum 22, the annular control cylinder includes the He of cylinder body 7
Connection main body 6 and the cross section being arranged between cylinder body 7 and connection main body 6 are approximately U-shaped platen 5.The bottom end of platen 5
Multiple springs 4 are provided between face and connection main body 6；One of top of platen 5 is housed inside in cylinder body 7, constitutes annular
The piston of control cylinder, constitutes sealing grease chamber between the top end face and cylinder body 7；Platen 5 another top end face be used for compress
The catch 33 of the end of interior hub 32.
The clutch has following two operating modes：
(1) to sealing grease chamber it is oil-filled when, hydraulic thrust overcome the spring force of multiple springs 4 make platen 5 depart from catch 33；This
When clutch shown in Fig. 1 c be a freewheel clutch：Meeting when surmounting condition the clutch will be into surmounting operating mode；Meet lock
Only the clutch will be into locking operating mode during condition.
(2) when grease chamber pressure release is sealed, the spring force of spring 4 is by piston return, while platen 5 presses to friction element, this
When clutch shown in Fig. 1 c the effect of freewheel clutch and ordinary clutch is each served as according to the direction that moment of torsion is transmitted：
When the direction of transmitting torque meets when status condition is surmounted, clutch shown in Fig. 1 c plays ordinary clutch and makees
With its transmitting torque size depends on the Monolithic spring power size of spring 4；
When the direction of transmitting torque meets into lockup state condition, clutch shown in Fig. 1 c will into locking operating mode,
Clutch shown in Fig. 1 c plays freewheel clutch effect.
Embodiment 3：The all cloth helicoid external compression freewheel clutches of friction disk type
Referring to Fig. 2, Fig. 2 a, Fig. 2 b and Fig. 5, all cloth helicoid external compression freewheel clutches of friction disk type include same center rotation
Clutch stopping means 1, outer ring load transfer device 2, inner ring load transfer device 3 and the friction for controlling clutch that shaft axis are arranged
Chip bonding and detached self-locking/surmount control device.
1st, outer ring load transfer device
Outer ring load transfer device 2 includes multiple outer ring friction plates 21 with external tooth 211 and an external drum with internal tooth 221
22；External drum 22 is sleeved on outside outer ring friction plate 21, and the internal tooth 221 of external drum 22 is engaged with the external tooth 211 of outer ring friction plate 21；Outward
Drum 22 vertically can be with relative movement, along the circumferential direction synchronous rotary with outer ring friction plate 21.
The platform for limiting outer ring friction plate 21 and the axial location of inner ring friction plate 31 is additionally provided with one end face of external drum 22
Rank 222 and catch 23；Step 222 blocks catch 23, places restrictions on its end for skidding off external drum 22；Catch 23 is used to limit outer ring friction
The axial location of piece 21 and inner ring friction plate 31, prevents outer ring friction plate 21 and inner ring friction plate 31 from skidding off external drum 22.
2nd, inner ring load transfer device
Inner ring load transfer device 3 includes multiple inner ring friction plates 31 with internal tooth 311 and the interior hub 32 with external tooth 321；
Interior hub 32 is sleeved in inner ring friction plate 31, and the external tooth 321 of interior hub 32 is engaged with the internal tooth 311 of inner ring friction plate 31；Interior hub
32 vertically can be with relative movement, along the circumferential direction synchronous rotary with inner ring friction plate 31.
The outer ring friction plate 21 of outer ring load transfer device 2 and the inner ring friction plate 31 of inner ring load transfer device 3 alternate cloth vertically
Put, and be all located between the catch 23 of outer ring load transfer device 2 and clutch stopping means 1.
Above-mentioned outer ring friction plate 21 and inner ring friction plate 31 constitute friction element.
3rd, clutch stopping means
Clutch stopping means 1 mainly includes the supportive body 11 connected with the housing of clutch.
Supportive body 11 is circular ring structure, for limiting the axial location of outer ring friction plate 21 and inner ring friction plate 31.
During design, do not interfere with the second helicoid couple 14 when should ensure that 11 pressing friction piece of supportive body.In order that thrust is concentrated
So that power transmission effect more preferably, on the end face of supportive body 11 processes an annular just stretched out to friction plate direction at friction plate
Raised 111；Further, since being provided with annular protrusion 111 so that in process support main body 11, it is only necessary to ensure annular protrusion 111
Flatness, difficulty of processing reduces, and manufacturability is more preferable.
4th, self-locking/surmount control device
Self-locking/surmount control device including the first helicoid couple 13 and the second helicoid couple 14.
Multiple first helicoids 131 are along the circumferential direction evenly arranged with the mating surface of the first helicoid couple 13；Second
Along the circumferential direction it is evenly arranged with, shape equal with the quantity of the first helicoid 131 in the mating surface of helicoid couple 14 to be adapted
The second helicoid 141.
First helicoid 131 and the second helicoid 141 can also be left-handed with dextrorotation, rotation direction and clutch transmission torque
Directional correlation：Referring to Fig. 2,2a and 2b, torsional moment is applied on interior hub 32, is seen from left to right in shown position, when in torsion
When interior hub 32 has clockwise rotating tendency relative to supportive body 11 in the presence of torque, if the He of the first helicoid 131
The dextrorotation of second helicoid 141 (rotation direction of diagram is dextrorotation), then under this moment loading freewheel clutch in surmounting state；
If the first helicoid 131 and the second helicoid 141 are left-handed, freewheel clutch is in lockup state under this moment loading, interior
Moment of torsion on hub 32 is by inner ring friction 31, outer ring friction 21 and the connected spiral shell of external drum 22 and first of the second helicoid couple 14
Radial facing couple 13 to supportive body 11 is transmitted.
The central rotation axis of the first helicoid couple 13 and supportive body 11 overlaps, and by attachment screw 12 one is connected to
Body；There are enough the second helicoid of space couples 14 between first helicoid couple 13 and supportive body 11；Second spiral
Face couple 14 is fixed with one with the external drum 22 of outer ring load transfer device 2, and (reality can be processed part when implementing on the end face of external drum 22
Second helicoid 141, or process the second helicoid on end face of the catch 23 being fixed in external drum 22 away from friction element
141), the second helicoid couple 14 be located at external drum 22, in the space that the helicoid couple 13 of supportive body 11 and first is formed, and
Second helicoid couple 14 can make spiral and slide relative to the first helicoid couple 13.When the second helicoid couple 14 relative to
(now the second helicoid couple 14 and the first helicoid couple 13 during 13 spiral slip certain distance of the first helicoid couple
Between space increased) outer ring friction plate 21 and the mutual compressive engagement of inner ring friction plate 31 transmission torque.
The torque output and torque input end of supportive body 11 and interior hub 32 respectively as clutch；Or, support master
The torque input end and torque output of body 11 and interior hub 32 respectively as clutch.
Embodiment 4：The controllable clutch two of power transmission
Clutch shown in Fig. 2 c and Figure 12 is the controllable clutch of power transmission, the work(with freewheel clutch and ordinary clutch
Energy.The clutch is on the architecture basics of the external pressure compact form freewheel clutch of above-described embodiment 3, to increased an additional clutch
Control device, the additional clutch control device includes the circular cylinder being arranged in supportive body 11, is arranged in circular cylinder
Piston 15, multiple springs 4 for being arranged between the second helicoid couple 14 and piston 15；Piston 15 is provided with multiple springs 4
That end face simultaneously just to friction element (during design, when should ensure that 15 pressing friction piece of piston not with the second helicoid couple
14 interfere)；Piston 15 is back to composition sealing grease chamber between the end face and the circular cylinder of friction element.
The clutch has following two operating modes：
(1) to sealing grease chamber it is oil-filled when, hydraulic thrust overcomes the spring force of spring 4 that piston 15 is pressed to into friction element, this
When clutch shown in Fig. 2 c and Figure 10 not only comprising a freewheel clutch again comprising an ordinary clutch for being in engagement state,
Both share a set of friction element：
Meeting when surmounting condition the clutch will be into surmounting operating mode, and the combined clutch is even at surmounting operating mode
Can transmitting torque, simply the size of transmitting torque is identical with ordinary clutch, normal pressure on transmitting torque=rubbing surface × equivalent
Coefficient of friction；
The clutch enters locking operating mode, the friction when moment of torsion of transmission is sufficiently large, between friction plate when meeting locking condition
Power formed friction torque drive the second helicoid couple 14 further to locking direction rotate, it might even be possible to by piston 15 push back to
Oil cylinder vent position, even if now sealing grease chamber pressure release, spring 4 can not push back the second helicoid couple 14, the torsion of transmission
The limiting value of square is the part strength limit.
(2) when grease chamber pressure release is sealed, and now clutch shown in Fig. 2 c is the freewheel clutch in released state,
The spring force of spring 4 by the return of piston 15 of oil cylinder, i.e. piston 15 to away from the movement of friction element direction, now shown in Fig. 2 c from
Clutch is in released state, two direction of rotation not transmitting torque.
Embodiment 5：The controllable clutch three of power transmission
The clutch as shown in Fig. 2 d, Fig. 2 d-1, Fig. 2 d-2 and Figure 13 is the controllable clutch of power transmission, with freewheel clutch
With the function of ordinary clutch, it is adaptable to which surmounting needs transmitting torque under state, and suitable for hydraulic system pressure-less state
The lower operating mode for needing transmitting torque.The clutch is on the basis of the external pressure compact form freewheel clutch of above-described embodiment 3, to increase
The circular cylinder being arranged in supportive body 11, the piston 15 being arranged in circular cylinder, it is arranged on the first helicoid couple
Platen 16 between 13 and piston 15, the multiple springs 4 being arranged between the helicoid couple 13 of platen 16 and first.
Sealing grease chamber is constituted between one end face of piston 15 and the circular cylinder；Another end face of piston 15 is just right
Platen 16 is simultaneously contacted with platen 16；Be respectively arranged with the helicoid couple 14 of platen 16 and second mutually spacing first step and
Second step.
When platen 16 to the direction of piston 15 in the presence of spring 4 when moving, platen 16 passes through first for being disposed thereon
Step is delivered to the spring force of spring 4 on the second step of the second helicoid couple 14, then by the second helicoid couple
14 are delivered to the spring force of spring 4 on the contact surface of outer ring friction plate 21 and inner ring friction plate 31, eliminate inside and outside circle friction plate
Between gap；
When platen 16 is moved to opposite direction (towards the direction movement of dorsad piston 15), platen 16 will not be by spring force
It is delivered on friction element.
The clutch has following two operating modes：
(1) to sealing grease chamber it is oil-filled when, piston 15 promotes platen 16 to overcome the spring force of spring 4 under hydraulic thrust effect
Away from the second step in the second helicoid couple 14, the spring force of spring 4 will not be applied in the second helicoid couple 14,
Now clutch as shown in Figure 2 d is freewheel clutch：
Meeting when surmounting condition the clutch will be into surmounting operating mode；
The clutch will be into locking operating mode when meeting locking condition.
(2) when grease chamber pressure release is sealed, the spring force of spring 4 is by piston return, while the second helicoid couple 14 is to pressure
To friction element direction move, now clutch shown in Fig. 2 d according to the direction that moment of torsion transmit each serve as freewheel clutch with
The effect of ordinary clutch：
When the direction of transmitting torque meets when status condition is surmounted, the clutch shown in Fig. 2 d is ordinary clutch,
Its transmitting torque size depends on the size of the Monolithic spring power of spring 4；
When the direction of transmitting torque meets into lockup state condition, the clutch shown in Fig. 2 d be freewheel clutch simultaneously
Into locking operating mode.
Embodiment 6：The controllable clutch three of power transmission
Fig. 8 show a kind of controllable freewheel clutch, is the base of the external compression freewheel clutch in above-described embodiment 3
An additional clutch control device is increased on plinth, the additional clutch control device includes circular cylinder, piston 15 and multiple bullets
Spring 4；Circular cylinder is arranged on supportive body 11, and piston 15 is arranged in circular cylinder, an end face of piston 15 and described
Sealing grease chamber is constituted between circular cylinder；Another end face of piston 15 is contacted just pair and with the second helicoid couple 14.
Spring 4 is arranged between the second helicoid couple 14 and supportive body 11, and the spring force of spring 4 passes through the second spiral
Face couple 14 is applied on the contact surface of inside and outside circle friction plate, for eliminating the gap between inside and outside circle friction plate.
The clutch has following two operating modes：
(1) to sealing grease chamber it is oil-filled when, hydraulic thrust overcomes the spring force of spring 4 to push the second helicoid couple 14 far to
From the direction of friction element, now clutch shown in Fig. 8 is in released state, in two direction of rotation not transmitting torque.
(2) when grease chamber pressure release is sealed, the spring force of spring 4 is by piston return, while the second helicoid couple 14 is pressed to
Friction element, now clutch shown in Fig. 8 is a freewheel clutch：Meeting when surmounting condition the clutch will be into surmounting work
Condition；The clutch will be into locking operating mode when meeting locking condition.
Embodiment 7：The sensitive freewheel clutch one of locking
As shown in fig. 6, increasing multiple springs 4, bullet on the basis of the freewheel clutch of above-described embodiment 1 (Fig. 1 and Fig. 5)
One end of spring 4 is supported on supportive body 11, and the other end is supported in the first helicoid couple 13.Spring 4 is used in friction unit
Apply less pretightning force on part to eliminate gap between inside and outside circle friction plate so that be quick on the draw during freewheel clutch self-locking
It is reliable, it is unlikely to produce when surmounting and excessive drags power.
Embodiment 8：The sensitive freewheel clutch two of locking
As shown in fig. 7, increasing on the basis of the freewheel clutch of embodiment 1 (shown in Fig. 1) and embodiment 3 (shown in Fig. 2)
Plus multiple springs 4, one end of spring 4 is supported on supportive body 11, and the other end is supported in the second helicoid couple 14.Spring
4 are used to apply less pretightning force on friction element to eliminate gap between Internal and external cycle friction plate so that freewheel clutch is certainly
Be quick on the draw reliability during lock, is unlikely to produce when surmounting and excessive drags power.
Embodiment 9：The sensitive freewheel clutch three of locking
As shown in figure 9, positioning and guiding groove is set on supportive body 11 on the basis of embodiment 1 (shown in Fig. 1), fixed
Platen 5 is set between position gathering sill and friction element, multiple springs 4 are set between platen 5 and positioning and guiding groove.Spring 4 is used
In apply less pretightning force on friction element with eliminate it is inside and outside circle friction plate between gap so that freewheel clutch from
Be quick on the draw reliability during lock, is unlikely to produce when surmounting and excessive drags power.
Embodiment 10：The sensitive freewheel clutch four of locking
As shown in figure 11, on the basis of embodiment 1 (Fig. 1 and Fig. 5) and embodiment 3 (Fig. 2 and Fig. 5) freewheel clutch,
Setting piston 15 between supportive body 11 and friction element, this piston 15 plays spring base；In the He of supportive body 11
Multiple springs 4 are set between piston 15.Spring 4 is used to apply less pretightning force on friction element to eliminate Internal and external cycle friction
Gap between piece so that be quick on the draw reliability during freewheel clutch self-locking, is unlikely to produce when surmounting and excessive drags power.
Finally, freewheel clutch of the present invention is illustrated by carrying out force analysis to freewheel clutch provided by the present invention
The self-locking of helicoid couple and the condition of automatic unlocking.Here (interior compression type overdrive clutch as a example by compression type freewheel clutch beyond
Device is same), take a pair of helicoids and represent helicoid couple to illustrate.
As shown in Figure 14 (a), equivalent to the second helicoid couple 14, inclined-plane is equivalent to the first helicoid in figure for wedge in figure
Couple 13, the angle of inclination beta on inclined-plane is the Mean Spiral Angle of two helicoid couple helicoid effective contact parts, F for surmount from
Clutch transmitting torque is converted to the active force on the circumference at " average helical angle beta " place, and the direction of F is the effect of power on the circumference
Tangential direction at point.
The stress diagram of wedge when Figure 14 (b) show freewheel clutch locking, Figure 14 (c) show freewheel clutch
The stress diagram of wedge during unblock operating mode；F is the outer ring friction plate 21 of the outer ring load transfer device of alternate arrangement and inner ring power transmission
Friction torque between the inner ring friction plate 31 of device is converted to the frictional force on the circumference at " average helical angle beta " place；Friction unit
Coefficient of friction between part friction pair is μ；F ＇ are the circle that the friction torque between helicoid couple is converted to " average helical angle beta " place
Frictional force on week；Coefficient of friction between helicoid couple is μ ＇；N is in inner ring friction plate, effective piece number of outer ring friction plate
Little value, N is the normal pressure between the friction plate for being applied to alternate arrangement, and S is the normal pressure between helicoid couple mating surface.
For locking operating mode, " the average helical angle beta " during critical condition is tried to achieve with following equation：
F=μ × N
F'=μ ' × S
2 (n-1) f+f-f'cos β-S sin β=0
N-f'sin β-S cos β=0
For unblock operating mode, with following equation critical condition yes " average helical angle beta " is tried to achieve：
F=μ × N
F'=μ ' × S
F+f'cos β-S sin β=0
N-f'sin β-S cos β=0
Therefore, freewheel clutch helicoid couple of the present invention should be caused to produce self-locking, can guarantee that helicoid couple certainly again
Dynamic unblock, it should meet following condition：
Claims (15)
1. a kind of friction disk type week cloth helicoid compresses freewheel clutch, spacing including the clutch being arranged on same rotation axis
Device (1), outer ring load transfer device (2), inner ring load transfer device (3)；Clutch stopping means (1) includes consolidating with the input shaft of clutch
Supportive body (11) even；Outer ring load transfer device (2) includes external drum (22) and the multiple outer ring friction plates being arranged in external drum
(21), outer ring friction plate (21) can make relative slip axially with respect to external drum, circumferentially with external drum synchronous rotary；Inner ring power transmission
Device (3) includes interior hub (32) and the multiple inner ring friction plates (31) being arranged on outside interior hub, inner ring friction plate (31) phase vertically
For interior hub (32) can make relative slip, circumferentially with external drum synchronous rotary；Outer ring friction plate (21) and inner ring friction plate (31)
Constitute friction element；Multiple outer ring friction plates (21) and multiple inner ring friction plates (31) are alternately arranged vertically；Supportive body
(11) and external drum (22) respectively as clutch two force transfer ends；
It is characterized in that：
The freewheel clutch also include for control outer ring friction plate (21) and inner ring friction plate (31) point with the self-locking of conjunction/
Surmount control device；The self-locking/surmount control device including the first helicoid couple (13) and the second helicoid couple (14)；
Multiple first helicoids (131) are provided with first helicoid couple (13)；It is provided with second helicoid couple (14) and
Multiple second helicoids (141) that one helicoid (131) is engaged；The first helicoid couple (13) and supportive body (11)
It is connected, the second helicoid couple (14) is connected with interior hub (32)；Second helicoid couple (14) is positioned at supportive body (11) and
Between one helicoid couple (13)；Second helicoid couple (14) can make spiral and slide relative to the first helicoid couple (13).
2. friction disk type week cloth helicoid according to claim 1 compresses freewheel clutch, it is characterised in that：The clutch
Stopping means (1) also includes back-up ring (12)；The supportive body (11) is band neck circular ring structure, and its neck is hollow circuit cylinder, its
Bottom is overhanging annulus (111)；The neck lateral surface of supportive body (11) is provided with circlip groove (114) and limited step (112)；
Back-up ring (12) is arranged in circlip groove (114)；Back-up ring (12) and limited step (112) are for fixing the first helicoid couple (13)
Axial location；The annulus of supportive body (11) is used to limit the axial position of inner ring friction plate (31) and outer ring friction plate (21)
Put.
3. friction disk type week cloth helicoid according to claim 1 and 2 compresses freewheel clutch, it is characterised in that：It is described
Freewheel clutch also includes additional clutch control device；The additional clutch control device includes the ring being arranged in external drum (22)
Shape control cylinder；The annular control cylinder includes cylinder body (7) and connection main body (6) and is arranged on cylinder body (7) and connection master
Platen (5) between body (6)；The cross section of platen (5) is approximately U-shaped；The bottom end face and connection main body of the platen (5)
(6) multiple springs (4) are provided between；One of top of the platen (5) is housed inside in cylinder body (7), constitutes annular
The piston of control cylinder, constitutes sealing grease chamber between the top end face and cylinder body (7)；Another top end of the platen (5)
Face is used to compress the friction element.
4. friction disk type week cloth helicoid according to claim 1 and 2 compresses freewheel clutch, it is characterised in that：Also wrap
Include the multiple springs (4) being arranged between supportive body (11) and the first helicoid couple (13).
5. friction disk type week cloth helicoid according to claim 1 and 2 compresses freewheel clutch, it is characterised in that：Also wrap
Include the positioning and guiding groove being arranged on supportive body (11)；Positioning and guiding groove (6) is provided with platen (5) and friction element between；
Multiple springs (4) are provided between platen (5) and positioning and guiding groove (6).
6. friction disk type week cloth helicoid according to claim 1 compresses freewheel clutch, it is characterised in that：Described first
Helicoid couple (13), the second helicoid couple (14), outer ring friction plate (21) and inner ring friction plate (31) meet following condition：
In formula, β is the Mean Spiral Angle of the helicoid effective contact part of two helicoid couples；
μ is the coefficient of friction between outer ring friction plate (21) and inner ring friction plate (31) friction pair；
μ ＇ are the coefficient of friction between two helicoid couples；
N is inner ring friction plate, the little value of effective piece number of outer ring friction plate.
7. a kind of friction disk type week cloth helicoid compresses freewheel clutch, spacing including the clutch being arranged on same rotation axis
Device (1), outer ring load transfer device (2), inner ring load transfer device (3)；Clutch stopping means (1) includes connected with clutch housing
Supportive body (11)；Outer ring load transfer device (2) includes external drum (22) and the multiple outer ring friction plates (21) being arranged in external drum, outward
Circle friction plate (21) can make relative slip axially with respect to external drum, circumferentially with external drum synchronous rotary；Inner ring load transfer device (3)
Including interior hub (32) and the multiple inner ring friction plates (31) being arranged on outside interior hub, inner ring friction plate (31) is axially with respect to interior hub
(32) relative slip can be made, circumferentially with interior hub synchronous rotary；Outer ring friction plate (21) and inner ring friction plate (31) constitute friction
Element；Multiple outer ring friction plates (21) and multiple inner ring friction plates (31) are alternately arranged vertically；Supportive body (11) and interior hub
(32) respectively as two force transfer ends of clutch；
It is characterized in that：
The freewheel clutch also include for control outer ring friction plate (21) and inner ring friction plate (31) point with the self-locking of conjunction/
Surmount control device；The self-locking/surmount control device including the first helicoid couple (13) and the second helicoid couple (14)；
The first helicoid (131) is provided with first helicoid couple (13)；It is provided with and the first spiral shell in second helicoid couple (14)
The second helicoid (141) that radial facing (131) is engaged；The first helicoid couple (13) is solid with the supportive body (11)
Even, the second helicoid couple (14) is connected with the external drum (22)；Second helicoid couple (14) positioned at supportive body (11) and
Between first helicoid couple (13)；Second helicoid couple (14) can make spiral slide relative to the first helicoid couple (13)
It is dynamic.
8. friction disk type week cloth helicoid according to claim 7 compresses freewheel clutch, it is characterised in that：The support
Main body (11) is circular ring structure, and supportive body (11) is for limiting the axial position of inner ring friction plate (31) and outer ring friction plate (21)
Put.
9. friction disk type week cloth helicoid according to claim 8 compresses freewheel clutch, it is characterised in that：The support
The annular protrusion (111) for stretching out in oriented friction plate direction is set on the end face of main body (11), the position of annular protrusion (111) with it is outer
Circle friction plate is corresponding with the contact surface of inner ring friction plate.
10. the friction disk type week cloth helicoid according to claim 7,8 or 9 compresses freewheel clutch, it is characterised in that：Institute
Stating freewheel clutch also includes additional clutch control device；The additional clutch control device includes being arranged on supportive body (11)
Interior circular cylinder, the piston (15) being arranged in circular cylinder, be arranged on the second helicoid couple (14) and piston (15) it
Between multiple springs (4)；Compression end face is provided with an end face of the piston (15), for compressing outer ring friction plate
(21) it is and inner ring friction plate (31), described to compress the side that end face is located at spring (4)；Another end face of the piston (15) and
Sealing grease chamber is constituted between the circular cylinder.
The 11. friction disk type week cloth helicoids according to claim 7,8 or 9 compress freewheel clutch, it is characterised in that：Institute
Stating freewheel clutch also includes additional clutch control device；The additional clutch control device includes being arranged on supportive body (11)
Interior circular cylinder, the piston (15) being arranged in circular cylinder, be arranged on the first helicoid couple (13) and piston (15) it
Between platen (16), multiple springs (4) for being arranged between platen (16) and the first helicoid couple (13)；The piston (15)
An end face and the circular cylinder between constitute sealing grease chamber；Another end face of the piston (15) is just to the platen
(16) and with platen (16) contact；Mutually spacing platform is provided with the platen (16) and the second helicoid couple (14)
Rank, the step on platen (16) can promote the step in the second helicoid couple (14) to move to piston (15) direction.
The 12. friction disk type week cloth helicoids according to claim 7,8 or 9 compress freewheel clutch, it is characterised in that：Institute
Stating freewheel clutch also includes additional clutch control device；The additional clutch control device includes being arranged on the second helicoid idol
Circular cylinder on part (14), the piston (15) being arranged in circular cylinder, it is arranged on supportive body (11) and the second helicoid
Multiple springs (4) between couple (14)；Seal Oil is constituted between one end face and the circular cylinder of the piston (15)
Room；Another end face of the piston (15) and the second helicoid couple (14) are contacted.
The 13. friction disk type week cloth helicoids according to claim 1,2,7,8 or 9 compress freewheel clutch, and its feature exists
In：Also include the multiple springs (4) being arranged between supportive body (11) and the second helicoid couple (14).
The 14. friction disk type week cloth helicoids according to claim 1,2,7,8 or 9 compress freewheel clutch, and its feature exists
In：Also include being arranged on piston (15) of the supportive body (11) and friction element between；Supportive body (11) and piston (15) it
Between be provided with multiple springs (4).
The 15. friction disk type week cloth helicoids according to claim 7,8 or 9 compress freewheel clutch, it is characterised in that：Institute
State the first helicoid couple (13), the second helicoid couple (14), outer ring friction plate (21) and inner ring friction plate (31) to meet such as
Lower condition：
In formula, β is the Mean Spiral Angle of the helicoid effective contact part of two helicoid couples；
μ is the coefficient of friction between outer ring friction plate (21) and inner ring friction plate (31) friction pair；
μ ＇ are the coefficient of friction between two helicoid couples；
N is the little value in inner ring friction plate, effective piece number of outer ring friction plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209643.2A CN106641022A (en) | 2016-12-23 | 2016-12-23 | Friction plate type peripheral spiral surface pressing overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611209643.2A CN106641022A (en) | 2016-12-23 | 2016-12-23 | Friction plate type peripheral spiral surface pressing overrunning clutch |
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| Publication Number | Publication Date |
|---|---|
| CN106641022A true CN106641022A (en) | 2017-05-10 |
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ID=58827525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611209643.2A Pending CN106641022A (en) | 2016-12-23 | 2016-12-23 | Friction plate type peripheral spiral surface pressing overrunning clutch |
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| CN (1) | CN106641022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043257A (en) * | 2019-12-04 | 2020-04-21 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-piece type large-torque friction clutch |
| CN111706623A (en) * | 2020-08-11 | 2020-09-25 | 山东永申机电科技有限公司 | One-way double-rotation ratchet wheel damping clutch |
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| CN104334904A (en) * | 2012-05-31 | 2015-02-04 | 加特可株式会社 | Friction engagement device |
| CN206368928U (en) * | 2016-12-23 | 2017-08-01 | 陕西国力信息技术有限公司 | The all cloth helicoids of friction disk type compress freewheel clutch |
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| GB916969A (en) * | 1958-02-14 | 1963-01-30 | Rambausek Hugo | Improvements in or relating to friction type overrunning clutches and gear boxes incorporating such clutches. |
| US3360087A (en) * | 1966-06-06 | 1967-12-26 | Twin Disc Inc | Hydraulically actuated friction clutch having torque control means |
| JP2001107989A (en) * | 1999-10-14 | 2001-04-17 | Koyo Seiko Co Ltd | Clutch device |
| EP1143162A1 (en) * | 1999-10-14 | 2001-10-10 | Koyo Seiko Co., Ltd. | Clutch device |
| WO2003056203A1 (en) * | 2001-12-28 | 2003-07-10 | Stackpole Limited | One way clutch |
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| CN1752474A (en) * | 2004-09-22 | 2006-03-29 | 韩文明 | Improved face contact type unidirectional clutch |
| JP2008309292A (en) * | 2007-06-15 | 2008-12-25 | Toyota Motor Corp | Snap ring of vehicular hydraulic frictional engaging device |
| CN101836004A (en) * | 2007-10-25 | 2010-09-15 | 盖茨公司 | Isolator decoupler |
| CN102725553A (en) * | 2010-01-27 | 2012-10-10 | 株式会社F.C.C. | Power transmission device |
| CN102562889A (en) * | 2010-12-30 | 2012-07-11 | 洪涛 | General parking brake based on poking-type overrun clutch mechanism and operating method thereof |
| CN104334904A (en) * | 2012-05-31 | 2015-02-04 | 加特可株式会社 | Friction engagement device |
| CN206368928U (en) * | 2016-12-23 | 2017-08-01 | 陕西国力信息技术有限公司 | The all cloth helicoids of friction disk type compress freewheel clutch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111043257A (en) * | 2019-12-04 | 2020-04-21 | 西南大学 | Self-adaptive automatic speed change assembly adopting multi-piece type large-torque friction clutch |
| CN111706623A (en) * | 2020-08-11 | 2020-09-25 | 山东永申机电科技有限公司 | One-way double-rotation ratchet wheel damping clutch |
| CN111706623B (en) * | 2020-08-11 | 2023-06-16 | 山东楷晋机电科技有限公司 | Unidirectional double-rotation ratchet damping clutch |
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