CN104963963B - Spatial-wedging multiple-grooved driving wheel with the big angle of wedge and the multi-rope friction type lifting means including the driving wheel - Google Patents
Spatial-wedging multiple-grooved driving wheel with the big angle of wedge and the multi-rope friction type lifting means including the driving wheel Download PDFInfo
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Abstract
This spatial-wedging multiple-grooved driving wheel is a kind of combined type friction gearing based on space wedge mechanism.It includes mainly rotation guiding mechanism G, and, limit multiple spacer rings 20 of multiple circumferential recess 78.It is characterized in that, being provided with tubular flange 86 on intermediary's ring 90 in mechanism G, at least one spacer ring 20 is non-rotatably set in the tubular flange 86.Thus it is ensured that the angle of climb ζ of the mechanism G of steel wire rope absolutely not friction slip wound in circumferential recess 78, can obtain promotion at double, the lift angle of guiding mechanism G and the selection range of associated friction auxiliary material, can be significantly expanded.The secondary antislip of its all revolution friction, is both not necessarily to rely on and improves friction coefficient, be also not necessarily to setting friction lining.Compared with the prior art and device, multiple-grooved driving wheel of the invention, it is easier to and more easily there is higher and more reliable transmission safety.
Description
Related application
The application be by the patent application of the applicant disclosed in Chinese patent literature CN103527748A part after
Continuous application, also, the priority of the Chinese patent application 201420327367.X proposed this application claims the applicant, this two
The full content of item earlier patent application is incorporated herein by reference.
Technical field
The present invention relates to a kind of by rigidity or flexible intermediate in elevator, promotion, pulling equipment and mechanical transmission fields
Driving member conveying rotary motion or torque, or the friction class transmission/brake device of the rotary motion or torque is prevented, and
Friction hoistings equipment such as multi-rope friction hoisting machine, crane, elevator, cage including the transmission device and general
Logical belt class friction gearing, more particularly to a kind of combined type friction drive wheel with multiple circumferential slots.
Background technology
Applicant discloses a kind of skill of spatial-wedging multiple-grooved driving wheel in Chinese patent literature CN103527748A
Art scheme gives the new transmission principle unrelated with Euler's formula/belt principle and drive mechanism, and so that friction drive wheel is first
It is secondary have overload also non-slip friction self-locking formula transmission the advantages of.But there is also can improve or carry for the technical solution
The technology space risen.For example, when ensuring that friction drive wheel has non-slip safe transmission characteristic, how there is bigger
Design freedom.
Invention content
The technical problem to be solved in the present invention is to provide a kind of spatial-wedging multiple-grooved driving wheels with the big angle of wedge, true
It protects under conditions of non-skidly safe transmission, compared with the prior art the lift angle value range with bigger, and, bigger is rubbed
The advantages of wiping coefficient value range.
Another technical problem to be solved by the present invention is that providing a kind of zero slip safety biography with bigger design freedom
The multi-rope friction type lifting means of dynamic characteristic.
In order to solve the above technical problems, the spatial-wedging multiple-grooved driving wheel with the big angle of wedge of the present invention includes, around one
At least one rotation guiding mechanism of axis revolution, which, which has, turns round around above-mentioned axis and is both provided with corresponding guide surface
Guide ring and intermediary's ring, and, it is axially offseted by the guide surface of two ring and is formed by guiding friction pair；Guide ring is provided with axis
Shape matrix, intermediary's ring are rotatably sleeved on the shaft-like matrix, the radial outside at the axial back side of guide surface and inside, point
It is not provided with revolution rubbing surface and tubular flange；And it is both provided in both ends of the surface in revolution rubbing surface and quantity and is at least one
One group of a spacer ring, one group of spacer ring are coaxially disposed at the axial side with tubular flange of intermediary's ring, wherein
It is at least one, be non-rotatably connected to the peripheral surface of the tubular flange；Wherein, the mutual position that contradicts of guiding friction pair
Lift angle λ is more than zero and is less than or equal to ξ, that is, 0 ＜ λ≤ξ, wherein ξ is to pass through intermediary's ring and spacer ring both sides in friction torque
When revolution rubbing surface acts on intermediary's ring, the maximum value of the lift angle λ of the circumferentially upper self-locking of guiding friction pair can be caused, and
The referred to as extrusion angle of intermediary's ring.
Further include the limiter ring turned round around the axis as a kind of simplification, in above-mentioned driving wheel, in one group of spacer ring
Back to the axial side of intermediary's ring, side of the limiter ring to be at least restricted on the direction axially away from one group of spacer ring
Formula, is non-rotatably connected to the peripheral surface of shaft-like matrix, and the radial outside of the axial end face of agency ring above is also set up
There is revolution rubbing surface.
Preferably, above-mentioned driving wheel further includes that at least there are one the flexible pre-tightening mechanisms of elastic element, the mechanism to continue for tool
Ground is connected to guide ring and intermediary's ring, has the trend of axial separation always to cause two rings each other.
Most preferably, guide ring and the guide surface of intermediary ring both sides are the spiral tooth surfaces for having complementary construction, difference
It is arranged in correspondence on a surface including end face, inner peripheral surface and peripheral surface for two ring；In axial plane, the screw type tooth
Angle between face and above-mentioned axis is more than 0 degree, is less than 180 degree.
To solve another technical problem, multi-rope friction type lifting means of the invention includes at least one driving wheel, the master
At least one of driving wheel is the above-mentioned spatial-wedging multiple-grooved driving wheel with the big angle of wedge.
Other improvement projects of the present invention, are provided by specific embodiment part.
It should be strongly noted that the meaning of related notion or term used in present specification is as follows：
Rotation guiding mechanism：Circumference is converted to the guiding including at least axially opposing movement or mobile trend
Mechanism.For example, the slide roll spiral or part helix mechanism of helix angle strict conformance and not strict conformance, radial peg
Groove mechanism, end face wedge mechanism, end face embeding mechanism, end ratchet mechanism, and, cylinder end cam mechanism.
ζ and ξ：The angle of climb of space wedge mechanism and extrusion angle.Intermediary's ring 90 as shown in Fig. 1,2, on the one hand, pass through
The traction friction surface 72 of its rubbing surface 104 and the friction member 70 of mediation member such as steel wire rope form is directly or indirectly axial
It contradicts, the resultant force W to form the normal pressure for contradicting position is not orthogonal to the rotary type traction friction mechanism F1's of axis of rotation X
It rubs including at least one one group of traction secondary；On the other hand, by it towards the guide surface such as 94a of a certain circumferencial direction,
Guide surface such as 54a corresponding to guide ring 50 is at least axially contradicted, and the resultant force N to form the normal pressure for contradicting position does not hang down
Directly in one group of guiding friction pair for including at least one of the rotation guiding mechanism G of axis of rotation X；The common tangent at the conflict position
With the average value of the angle of the plane perpendicular to axis of rotation X, referred to as the lift angle λ at the conflict position；In another aspect, by other
Surface can also act on other active forces, such as elastic pre-stress, alternatively, in response to mediation member on 90 inner peripheral surface of intermediary's ring
The circumference frictional force of tension；It is oriented in operating mode in the rotation of rotation guiding mechanism G, that is, the beginning of guide ring 50 constantly has
It drives in the trend that arrow P direction relative frictions part 70 rotates along such as Fig. 2 of intermediary's ring 90, it can be ensured that be oriented to friction
The minimum lift angle that the both sides surface of secondary self-locking contradicts position is defined as ζ, and ζ is also referred to as the angle of climb of intermediate piece 90, and most rises higher
Angle is then defined as ξ, and ξ is also referred to as the extrusion angle of intermediate piece 90.Two limiting angles --- squeeze out angle ξ and angle of climb ζ, complete boundary
Ding Liao intermediaries ring 90 be oppositely oriented ring 50 rotate forward, stationary and every forms of motion for rotating backward.Specifically
Meaning is as follows：
1, as 90 degree of ξ ＜ λ ＜, that is, λ is more than when squeezing out angle ξ, and guiding friction pair and traction friction pair cannot rub
Self-locking, by the normal pressure N or its component Q and T of guiding friction pair, guide ring and friction member 70 can cause intermediary's ring 90
Opposite the two is forward that is, arrow P directions are trackslipped and/or squeezed out.Even if since guide part 50 is without squash axial displacement
Reason is circumferentially displaced without perceptible macroscopical magnitude, and intermediate piece 90 also will be with the axial elasticity corresponding to associated components
Strain microcosmic magnitude it is circumferentially displaced.Therefore, intermediate piece 90 cannot rub guide ring 50 and 70 wedging of friction member at one
Body can only be directed to ring 50 and the friction of relative friction part 70 is pushed to trackslip and cannot effectively transmit friction torque.
2, as ζ ＜ λ≤ξ and λ ＞ 0, that is, λ, between angle of climb ζ and when squeezing out between the ξ of angle, traction friction is secondary to be had first
The characteristic of itself static friction state/resistance and entrance sliding friction state is broken through in guiding friction pair.Therefore, intermediary's ring 90 can
By guide ring 50 and 70 wedging of friction member at a friction piece, but when friction member 70 is oppositely oriented ring 50 and overloads, traction friction
Pair will break through its static friction state/maximum static friction resistance and normally be transferred to sliding friction state, and guiding friction pair is then
It is in constant self-locking state always due to not breaking through its static friction state/resistance also.Accordingly, space wedge mechanism is in half
Wedging state, freewheel clutch are in non-fully engagement state.
3, when 0 ＜ λ≤ζ the case where (be directed to ζ ＞ 0), that is, when λ is less than or equal to angle of climb ζ, guiding friction pair has first
Itself static friction state/resistance is broken in traction friction anapophysis and the characteristic of entrance sliding friction state.Therefore, intermediary's ring 90 can
By guide ring 50 and 70 wedging of friction member at a friction piece, but when friction member 70 is oppositely oriented ring 50 and overloads, it is oriented to friction
Pair will break through its static friction state/maximum static friction resistance and intermediary's ring 90 is caused to have to be oppositely oriented ring 50 and trackslip and climb
Trend, and it is secondary then due to not breaking through its static friction state/resistance also always in constant self-locking state to draw friction.However,
Since above-mentioned climbing trend is rigidly prevented (unless guide part 50 can axial displacement by the axial force enclosed construction of space wedge mechanism
Evacuation), therefore, guiding friction pair is actually forcibly maintained the general static friction state for being equal to self-locking.That is, intermediary
It is whole that ring 90, guide ring 50 and 70 three of friction member are forced a rotation of wedging/be combined into, and is not in mutually to trackslip to climb
The case where, except non-overloaded to structure damage.Absolute self-locking of the space wedge mechanism thus in similar diagonal-bracing type freewheel clutch/
Wedging state, transmission capacity are only dependent upon structural strength.
Obviously, above-mentioned lift angle λ is exactly the angle of wedge of space wedge mechanism, also referred to as wedging angle/choke angle, and only in 0 ＜ λ≤ξ
When, space wedge mechanism can wedging.
Compared with the prior art, the spatial-wedging multiple-grooved driving wheel with the big angle of wedge according to the present invention, because its traction rubs
The technical characteristic that mechanism F1 has the more than one traction friction being set up in parallel secondary is wiped, to directly be provided with climbing for bigger
The advantageous effect of angle ζ and the lift angle λ value ranges of extrusion angle ξ and bigger.Therefore, driving wheel will be easier to ensure that in design
Realize non-skidly safe transmission, that is, the design freedom of bigger.With the help of the description and drawings of the following embodiments, of the invention
Objects and advantages will seem apparent and clear.
Description of the drawings
Fig. 1 is the axial sectional view of the simplification of unilateral guidance type multiple-grooved driving wheel according to the present invention.
Fig. 2 is the profile of K-K sections Shang Ge mechanisms in Fig. 1 to the schematic local expansion of same external cylindrical surface radially projecting
Figure.
Fig. 3 is the axial sectional view of the another simplification of unilateral guidance type multiple-grooved driving wheel according to the present invention.
Specific implementation mode
Necessary explanation：For simplicity, in the text and all attached drawings of this specification, same or analogous component and feature
Position is all made of identical reference numeral, and only gives necessary explanation when they first appear or have variations.Equally,
The working mechanism or process of the same or similar mechanism of not repeated explanation.It is arranged for difference identical on symmetrical or corresponding position
Component or characteristic portion, this specification attached letter behind its reference numeral, and when there is a general or no difference, then
Do not add any letter.
Fig. 1~2 show the unilateral guidance type spatial-wedging multiple-grooved driving wheel P1 with the big angle of wedge, can be considered
It is the modification to technical solution disclosed in patent document CN103527748A.Driving wheel P1 includes being formed around axis X, and most
It is in the guide ring 50 of ladder shaft-like goodly.On the inner face of the ladder outer shroud of the axis one end, be provided with one group most preferably around
The tooth-like guiding tooth 52 of the circumferentially uniformly distributed spiral of axis X, ladder inner ring towards inner end extend tubular shaft-like matrix 60 in
On portion's peripheral surface, the ground diameter that can trackslip is to being located intermediary's ring 90.Intermediary's ring 90 faces the ring of guide ring 50 by being arranged at it
In shape flange end face is in the tooth-like guiding tooth 92 of one group of spiral of complementary construction with guiding tooth 52, unvaryingly embedding with guide ring 50
It closes, most preferably to form the rotation guiding mechanism G of face contact, that is, the core of spatial-wedging driving wheel.It is unshowned
Transmission shaft is non-rotatably connected to the inner peripheral surface of shaft-like matrix 60 by such as flat key and keyway 64.Certainly, hollow pipe
Shape structure is not the required of shaft-like matrix 60, if it is desired, it can have solid axle construction completely.
To form the enclosed conflict connection of axial force, pass through one group of inner spline gear 182 with complementary structure and outer flower
Key teeth 62, limiter ring 180 is non-rotatably connected on the peripheral surface of separate guiding tooth 52 of shaft-like matrix 60, and is arranged
In the axial support and limit of the support element 140 of its axial outer end.The support element 140 is rotatably connected to axis by screw thread pair
The thread segment 66 of 60 outer end of shape matrix, the axial direction infinitely to adjust support element 140 supports and restraining position, and the support
Position can be most preferably fixed by known technologies such as radial peg, axial pin or splicing.For example, being set by shown in Fig. 1
It is placed at least one fixed pin 142 of 140 inner face of support element, extends axially to be located at the accordingly conflict end of limiter ring 180
Being at least in one corresponding axial notch 188 on face.Obviously, the thread of the screw thread pair can be cut with any type
Face shape, such as rectangle, trapezoidal, zigzag or triangle etc. in known technology.
It can be appreciated that support element 140 also can be specially such as snap ring or two semicircle snap rings.But in fact, branch
Support member 140 is not required in that, more need not be stepless or be provided with connection screw thread.Because limiter ring 180 can be by any
A kind of known technology is directly fixedly connected on shaft-like matrix 60, for example, welding manner, riveting method, pin joint mode.Moreover,
Also changeable type is another guide ring to support element 140, the peripheral surface of shaft-like matrix 60 is non-rotatably connected to, for example, borrowing
Spline pair is helped, and is arranged on such as snap ring on the shaft-like matrix 60 of its axial outer end and gives unidirectional limitation.Correspondingly, limiter
Ring 180 is modified to another intermediate piece at least substantially symmetric with intermediary ring 90.
It is coaxially provided with and at least wraps between intermediary's ring 90 and limiter ring 180 to form multi-groove type friction drive wheel
One one group of spacer ring 20, such as 1~10 are included, Fig. 1 show four.And it is to obtain the larger angle of wedge or more preferably same
The internal side diameter of axis degree, intermediary's ring 90 and limiter ring 180 is also coaxially provided with 86 He of tubular flange extended towards respectively
186, external spline teeth 82 and 184 is respectively arranged on the peripheral surface of two flange.And by the complementary spline tooth 22 in endoporus,
Spacer ring 20a, 20b and 20c are non-rotatably socketed on tubular flange 86 and 186 respectively.
The radial direction of the opposed facing end face of limiter ring 180, spacer ring 20a, 20b and 20c and 90 5 component of intermediary's ring
Outer rim side is respectively provided with the curved face type revolution for being at least substantially frustum-like shape including the frusto-conical surface that half cone-apex angle is β or α and rubs
Wiping face.The revolution rubbing surface facing each other is the traction friction surface 104 being set on intermediary's ring 90 respectively, is set to limiter
Power transmission rubbing surface 58 on ring 180, and the rubbing surface 24 that is set on spacer ring 20.These revolution rubbing surfaces facing each other
Cross section is limited respectively at least in four rotary type grooves 78 of substantially V-shaped.In shaft section, groove 78 and mediation member
The mutual curved surface for contradicting position of both sides, most preferably has at least approximate curvature.
In the present invention, it is used as the friction member 70 and steel wire rope 30a, 30b and 30c of flexible mediation member, most preferably has
Body is identical steel wire rope.It is apparent that ground, mediation member can also be specially the skin with such as trapezoidal sectional shape
Band etc..These mediation members are to circumferentially extend to the best mode of less half cycle, respectively in corresponding groove 78, and point
Not Xing Cheng traction friction mechanism F1 and directly transmission friction torque power transmission friction mechanism F2.F1 and F2 points of two friction mechanisms
Ju not be secondary there are five rubbing with three, it is equivalent to multi-disc friction mechanism.Wherein, traction friction mechanism F1 includes, in
Jie's ring 90, as the steel wire rope 30a and 30b of outside friction disc, spacer ring 20a and 20b and friction member as inner attrition piece
70.Power transmission friction mechanism F2 includes then friction member 70, the spacer ring 20c as inner attrition piece, the steel wire rope as outside friction disc
30c and limiter ring 180.Wherein, rotation guiding mechanism G and traction friction mechanism F1 is collectively formed in multiple-grooved driving wheel P1
Face type space wedge mechanism, the space wedge mechanism form the space wedging of multiple-grooved driving wheel P1 with power transmission friction mechanism F2 again
Formula frictional connection/transmission mechanism.
It is necessary to note that conventional wisdom is that, all flexibility mediation members, that is, friction member 70 and steel wire rope 30a, 30b
And 30c, because being fixed in the load device of the same such as cage, car or skip bucket, and it is collectively formed one and to each other can not
The connected combined type friction of rotation is whole.
It should incidentally, in Fig. 1 be used as the spacer ring 20 of inside and outside friction plate and the quantity of steel wire rope 30 and setting position
An only example is set, tubular flange 186 therein is nor required.As long as in fact, can ensure tubular flange 86
On be provided at least one spacer ring such as 20a, the quantity of one group of spacer ring 20 and installation position or combination can not be by
Any limitation.For example, spacer ring 20c can be arranged together in tubular flange 86, alternatively, being set up directly on shaft-like matrix 60
On, alternatively, being abandoned together with steel wire rope 30c and tubular flange 186.
It is readily apparent that, when friction member 70 is specially steel wire rope, traction friction surface 72 and power transmission rubbing surface 74 are exactly it
Circumferential outer surface, and when it is specially V-belt, two rubbing surfaces are exactly the frusto-conical surface of two about half cycles.
It should also be noted that the meaning of the application " directly transmitting friction torque " refers to biography of the torque between two components
Path is passed merely through a friction mechanism, and without any second other mechanism, is rubbed with possessed by the friction mechanism
The quantity of wiping face/piece/steel wire rope does not have any relationship.
Fig. 2 shows the detailed relations and structure feature of rotation guiding mechanism G and guide ring 50 and intermediary's ring 90 etc..Its
In, the guide surface 54 and 94 with trapezoidal cross-section and the tooth-like guiding tooth of each pair of face type spiral for radially extending 52 and 92 can
It is bonded to each other, the spiral guiding friction pair contacted with the two groups of faces formed corresponding to different circumferencial directions.That is, this two groups have
The guide surface 54 of complementary structure and 94 is most preferably spiral tooth surface.And the tooth of each pair of guiding tooth 52 and 92 is high, by most preferably
Be arranged to not interfere corresponding to two circumferencial directions two groups of guide surface 54a and 94a and 54b and 94b in the axial direction while
Fitting, that is, the axial minimum spacing 6 of respective tooth top and respectively residing tooth socket groove bottom, are most preferably more than zero, to ensure to turn
The circumferential free degree of action-oriented mechanism G/gap ε can be equal to zero.Preferably, two groups of guiding of two circumferencial directions are respectively facing
Two complementary lift angle λ of face 54a and 94a and 54b and 94baAnd λb, it is respectively provided with into and is symmetrically equal to λ.Multiple-grooved is needed to be driven
When taking turns P1 overload skiddings, the value range of lift angle λ is ζ ＜ λ≤ξ.It is readily appreciated that, (feelings of ζ ＞ 0 is directed to as 0 ＜ λ≤ζ
Condition), it is the sprocket wheel overloaded in the also non-slip fact that multiple-grooved driving wheel P1 will be formed due to as described above.Therefore, right
Multiple-grooved driving wheel in such as multi-rope friction hoisting machine and elevator should most preferably select the lift angle of 0 ＜ λ≤ζ to set
It sets.
In fact, the mean effort radius of the practical frictional contact surface due to traction friction mechanism F1, that is, effectively
Transmission radius R1It can continuously change in some practical applications, such as need the frictional wheel drive application of reducing.Cause
This, above-mentioned angle of climb ζ and extrusion angle ξ will be with R1Variation between minimum value and maximum value and change, and respectively correspondingly
With respective two extreme values.That is, ζ ∈ [ζmin, ζmax], ξ ∈ [ξmin, ξmax].So, it is ensured that such as multiple-grooved driving wheel P1's rubs
Wiping the pervasive interval of transmission absolutely non-slip lift angle λ is：0 ＜ λ≤ζmin(work as ζminWhen ＞ 0), and what overload can skid
The value upper limit is then ξmax.Correspondingly, R in the application2What is indicated is effective transmission radius of power transmission friction mechanism F2.
Obviously, even if friction member 70, steel wire rope 30a, 30b and 30c do not have identical diameter and length, for example
In the practical application of multi-rope friction hoisting machine, spacer ring 20a, 20b that the present invention also axially can be moved adaptively and/or
20c, with the width for constantly adjusting each circumferential recess 78 or effective transmission radius R1, finally ensure the tension substantially phase of each steel wire rope
Deng.
It is contemplated that if by the lift angle of one group of guide surface in Fig. 2, for example, 54b and 94b λb, it is set greater than ξ,
For example reach and be parallel to 90 degree of axis X, multiple-grooved driving wheel P1 will be in the rotation side for causing guide surface 54b and 94b circumferentially to contradict
Upwards, it is modified to the friction drive wheel to work according to Euler's principle and formula, and only in another direction according to the sky of the present invention
Between wedging principle work.
In addition, for the functional reliability for obtaining best, prevent dust etc. from entering the friction for being most preferably filled with greasing substance
Pair, rotation guiding mechanism G radially outside, be also most preferably provided with the dustband 40 of such as tubulose.The two of the dustband 40
The sealing lip at end with respect to trackslip elastic respectively can be set on the corresponding peripheral surface of guide ring 50 and intermediary's ring 90.For same
Sample purpose, corresponding four dustbands 42 by being respectively separated are set in such a way that axially upper while elasticity is contradicted to both ends component
It sets between intermediary's ring 90, spacer ring 20a, 20b, 20c and limiter ring 180.
The course of work of multiple-grooved driving wheel P1 is very simple.When guide ring 50 starts constantly have such as arrow along Fig. 2
Head P directions, relative friction part 70 make initial instant/zero moment of the trend of driving rotation, friction member 70 and can not with it
Rotation connected steel wire rope 30a and 30b are drawn by the traction friction torque of more friction disk type traction friction mechanism F1
Intermediary's ring 90 of rotation guiding mechanism G is oppositely oriented ring 50 and rotates guiding movement along arrow R directions.Mechanism G's
Axial movement/tension force or axial engagement power/pressing force caused by guiding movement/trend are rotated, by 92 wink of guiding tooth
Between wedging in the end face wedge shape space that guide surface 54a and traction friction surface 72 are surrounded, that is, intermediary's ring 90 is by guide ring
50 engage with 70 wedging of friction member at a dynamic friction piece, more friction disk type traction friction mechanism F1 thus axial expansion chuck
While, also in a manner of forming the closed conflict connection of axial force, cause more friction disk type power transmission friction mechanism F2 axially swollen
Synchronize engagement to compact form.Also that is, above-mentioned tension force will also cause friction member 70 and steel wire rope 30a as mediation member,
30b and 30c, and spacer ring 20a, 20b and 20c and limiter ring 180 as inner attrition piece, in axial direction directly swelling at
One dynamic friction piece.
Should in passing, it is noted that it is above-mentioned it is " dynamic " be meant that, participate in the power transmission that rubs as in power transmission friction piece
Friction member 70 and steel wire rope 30a, 30b and 30c, actually only respective that part for corresponding to the secondary position of friction,
It is exactly friction member 70 and the dynamically part in groove 78 of steel wire rope 30a, 30b and 30c.Obviously, this
Point it is not a certain fixed part in respective component, but by all sites of respective component to recycle/relay substitute mode
Infinitely and continuously serve as.
Then, multiple-grooved driving wheel P1 is engaged with the wedging of space wedge mechanism.By the biography in 60 endoporus of shaft-like matrix
The incoming power torque M of moving axis0, it is divided into the wedging friction torque transmitted via rotation guiding mechanism G and traction friction mechanism F1
M1, and the power transmission friction torque M that is directly transmitted via power transmission friction mechanism F22, it is delivered separately to such as belt/steel wire rope form
Friction member 70, steel wire rope 30a, 30b and 30c.Wherein, M0=M1+M2.Obviously, above-mentioned axial tension force or wedging power/engagement
The size of power and each frictional force, is adaptively proportional to M completely1, that is, driving torque M0。
Far and away, due to the symmetry in circumferential direction, the arrow R direction relative frictions part 70 along Fig. 2 of guide ring 50 is made
Course of work when driving rotation, is quite analogous to, naturally herein without the necessity repeated.In addition, torque also can by with it is upper
Opposite path is stated to transmit, and the course of work does not have any essential difference.
By above description it is not difficult to find that multiple-grooved driving wheel P1 according to the present invention, utilizes the uniqueness of space wedge mechanism
Working mechanism, axially established between engaging force/tension force and actual transfer torque direct and adaptive interior
It is contacting, and is being medium with intermediary's ring 90, by friction member 70 and 50 wedging of guide ring at a dynamic friction piece.Meanwhile profit
Increase frictional force/torque that traction friction mechanism F1 therein is transmitted with more friction plate structures, exponentially increases it and climb
Lift angle ζ and extrusion angle ξ, to exponentially expand the value range of lift angle λ, that is, the degree of freedom designed.Therefore, of the invention
Passive type drive theory in being different from the prior art completely and pattern.And it is obviously improved it and has overloaded also absolutely non-slip set
Degree of freedom is counted, objective guarantee is provided safely for the transmission of multiple-grooved driving wheel P1 in terms of structure and principle.
As an example, assuming β=α=60 °, the central diameter of guiding friction pair/guide surface is RG, the institute of traction friction mechanism F1
It is 0.15 to have the friction coefficient between rubbing surface, and the friction coefficient of guiding friction pair is equal to 0.1, and R1/RG=R2/RG=
1.3, then, the equlvalent coefficient of friction of traction friction mechanism F1 in Fig. 1It is 0.80, angle of climb ζ is 40.31 °, is squeezed out
Angle ξ is 51.73 °.And in the technical solution of the patent document integrally combined above, two angles are because of traction friction mechanism
F1 only has single traction friction pair and is only respectively 6.00 ° and 17.42 °.Same assumed condition both differs
34.31°。
Obviously, in it may insure to overload also non-slip parameter setting, the value range of the lift angle λ of the application is for example
0~40.31 °, design freedom is far longer than such as 0~6.00 ° of the prior art.And it must be stressed that above-mentioned 0.15
Friction coefficient be only that numerical value between ordinary steel material is horizontal.That is, the multiple-grooved driving wheel according to the application is intended to reach
At overload, the technical goal of friction slip, friction be not secondary not necessarily with high or higher friction coefficient or normal direction pressure yet
Power is also not necessarily to using not only pressure-resistant wear-resisting but also expensive friction lining with great friction coefficient, common material and conventional friction
Coefficient.Thus, the multiple-grooved driving wheel according to the application has bigger and wider range of friction coefficient and material selection range,
Also there is the design freedom of bigger in geometric dimension, also, its manufacturing cost can also be significantly decreased.And review existing skill
In art, although the effect is unsatisfactory, increase the friction coefficient between capstan friction lining and steel wire rope by every means, if
The friction lining with great friction coefficient is set, but the always anti-skidding main measure of multiple-grooved driving wheel.
It is important to point out that the condition of multiple-grooved driving wheel P1 normal works is to be used as the friction member 70 of mediation member
And steel wire rope 30a, 30b and 30c, it is necessary to its radial position can be maintained and cannot radially be squeezed out.As long as also that is, above-mentioned
Axial tension force cannot overcome the radial friction resistance for acting on mediation member and its both ends tension T1With T2Difference and incite somebody to action
Mediation member radially squeezes out, and the wedging type drive state of multiple-grooved driving wheel P1 would not be destroyed.Alternatively, can also be according to known skill
Two common tangents of 78 both sides of Fig. 1 further grooves and the friction contradiction position of mediation member are formed by angle by art, and setting exists
Within angle of friction.Even if in this way, not considering tension T1And T2, also can only frictionally secondary radially self-locking, ensure mediation member diameter
To the absolute stability of position.
Certainly, to prevent extreme case and acquiring absolutely reliably, can also be arranged in the radial outside of groove 78 at least one
Pulley or contact roller are limited, for example, the diameter of friction member 70 in Fig. 1 and steel wire rope 30 and the point of contact of groove 78 is respectively set
Outward, utterly to prevent the radial outward movement of all mediation members.
Must it should be noted that, for seek bigger design freedom and enable space wedge mechanism be easier wedging or solution wedge,
The present invention also has the other technological means for promoting angle of climb ζ and squeezing out angle ξ numerical value.Including by the guiding of rotation guiding mechanism G
Face 54 and 94 is arranged to apsacline helical tooth flank, with cause guide surface 54 in shaft section and 94 with the cone-apex angle of the angle of axis X/half
It is no longer equal to 90 degree, and the other values being equal between 0~180 degree；And it will be provided with the material or element of bigger friction coefficient
It is attached at least one of rubbing surface 72 and 104.Should herein conveniently, this specification have been presented for about
Angle of climb ζ and the clearly literal definition and explanation for squeezing out angle ξ, without paying any performing creative labour, this field it is common
Technical staff can derive its universal function relational expression/calculation formula accordingly.
Must also conveniently, by most basic geometry common sense it is found that for plane and straight line wedging mechanism, lift angle
λ is obviously exactly constant and single angle as shown in Figure 2, and for the wedging mechanism on the circumferencial direction of the application, it rises
Angle λ then can be different with the difference of residing radius of a circle.But according to the clear explanation of this specification, all parameters
Obviously correspond to overall friction/wedging effect, therefore, the worm drive analysis method of similar mechanical transmission fields common-sense,
The so-called lift angle λ of the application, angle of climb ζ and extrusion angle ξ, correspond to the central diameter R of guiding friction pair/guide surfaceGParameter.
In addition, as described in definition, the present invention does not make specific limit to rotation guiding mechanism G and its guiding tooth 52,92
System, is not necessarily to the spiral toothing for having best, is also not necessarily to the complementary guiding flank of tooth.Therefore, guiding mechanism G and
Its guiding tooth and the guiding flank of tooth can have the form and shape for arbitrarily having rotation guide function.Guiding tooth can be set by discrete form
It sets on the end face of 90 both sides of guide ring 50 and intermediary's ring or on inside and outside circumferential surface, it also can be by such as single head or multiple-threaded side
Formula, it is circumferential to continue ground setting on corresponding inside and outside circumferential surface.And in latter arrangement form, it can most preferably be arranged to have
There is the helical tooth of such as rectangle, trapezoidal, zigzag or triangle prismatic shapes.
Therefore, if driving wheel P1 only needs to transmit unidirectional torque and rotation, its support element 140 can be removed, by limiter ring
180 are modified to another intermediary's ring, and the spline pair between its tubular flange 186 and shaft-like matrix 60 is connected, and are changed to as described above
Guide type single head or multiple thread pair connection.In this way, the most simple embodiment of the application can be obtained, moreover, after the modification
There are two traction friction mechanism F1 for embodiment tool, but no longer have power transmission friction mechanism F2.Certainly, the rotation in left side is led in Fig. 1
It is the tooth-like structure of circumferential surface screw thread as described above to mechanism G also changeable type, naturally, which must have
Opposite rotation direction.More detailed structural diagrams and explanation, reference can be made to the applicant is in Chinese patent literature CN102562860A
Technical solution that is open and being hereby incorporated by full, is not repeated explanation herein.
Obviously, the tooth-like guiding tooth of face type spiral 52 can also be arranged on an individual annulus.In circumferential direction, the annulus
Inner spline gear and the axially extending external spline teeth 62 to come there is complementary construction, to non-rotatably be connected to shaft-like base
Body 60, in axial direction, which directly contradicts to the radial flange of 60 outer end of shaft-like matrix.Non-optimal, above-mentioned connection type
It can be specially the process form of such as welding.
In application aspect, those skilled in the art is readily apparent that, as long as being gone with the multiple-grooved driving wheel such as P1 of the present invention
Replace whole or at least one capstans, the driving wheel/driving wheel in all kinds of multi-rope friction type lifting means in the prior art
Or braked wheel, for example, all kinds of mining multi-rope friction hoisting machines and the capstan in crane or driving wheel/driving wheel are replaced,
Replace traction sheave/driving rope sheave etc. in all kinds of car type vertical lift elevators, or at least partly using it as driving wheel/
Driving wheel is reconfigured with necessary prime mover, transmission device, mediation member, equipment, braking and control device etc., just
Promotion according to the present invention can be obtained or fall cargo or the multi-rope friction type lifting means of personnel.And compared with the prior art,
Obviously with the stronger advantageous effect with safety and reliability of bearing capacity, and, the design as described above including bigger is free
All advantageous effects including degree.
Referring to Fig. 3, what is shown is the spatial-wedging multiple-grooved for the driving wheel for being dedicated as multi-rope friction hoisting machine
Driving wheel P2 is the direct modification of multiple-grooved driving wheel P1.Wherein, in order to adapt to large-sized geometrical feature, one group interval
Ring 20 is provided with I-shaped cross section, meanwhile, guide ring 50 be modified to one include driving center 130 combined type component.
By welding, key connection, it is not rounded the known manners such as coordinate, be fitted into, be bolted and rivet, the flange 132 on driving center 130 is not
It is rotationally attached on the inner peripheral surface of shaft-like matrix 60.And be used to connect the screw thread of support element 140 and shaft-like matrix 60, then divide
It is not transferred on the former peripheral surface of facing flange and the inner peripheral surface of the latter.In addition, driving center 130 is circumferentially fixed in transmission shaft
On 110.
Also it must be noted that, the present invention may be obviously used in ordinary straps class friction gearing.For example, replacing vapour
Such as crank pulley in interior combustion engine front end wheel train, to reduce its diameter, to reduce all other skin in the train
The diameter of belt wheel.In this way, matter/weight of front end wheel train can be greatly reduced, it can also cancel expensive V-ribbed belt, weight in a way
Newly use more cheap single or double joint V belt.
Above is only the description and diagram that the present invention is directed to that its limited embodiments is given, and it is a degree of special to have
Property, it is understood that, mentioned embodiment and attached drawing are all merely illustrative, rather than the limitation present invention and its guarantor
Range is protected, various change, equivalent, exchange and the change of member position or structure carried out to them will all be considered not taking off
Leave the spirit and scope of present inventive concept.
Claims (10)
1. a kind of spatial-wedging multiple-grooved driving wheel with the big angle of wedge, including：
Around at least one rotation guiding mechanism of axis revolution, has and turned round around the axis and be both provided with corresponding guiding
The guide ring and intermediary's ring in face, and, it is axially offseted institute's shape by the guide surface of the guide ring and intermediary's ring both sides
At guiding friction pair, the guide ring is provided with shaft-like matrix, and intermediary's ring is rotatably sleeved on the shaft-like matrix,
The radial outside at the axial back side of the guide surface of intermediary's ring is provided with revolution rubbing surface；
It is characterized in that：
It is additionally provided with tubular flange on intermediary's ring, is located at the internal side diameter of the revolution rubbing surface；
Further include one group of spacer ring that at least one in revolution rubbing surface and quantity is both provided in both ends of the surface, one group of interval
Ring is coaxially disposed at the axial side with the tubular flange of intermediary's ring, therein at least one, can not revolve
It is connected to the peripheral surface of the tubular flange with turning；And
The mutual lift angle λ for contradicting position of the guiding friction pair, is more than zero and is less than or equal to ζ, that is, 0 ＜ λ≤ζ, wherein ζ
Be friction torque by the revolution rubbing surface of intermediary's ring and the spacer ring both sides act on intermediary's ring it
When, the maximum value of the lift angle λ of the circumferentially upper self-locking of the guiding friction pair can be caused, and referred to as described intermediary's ring is crowded
Angle of departure.
2. multiple-grooved driving wheel as described in claim 1, it is characterised in that：The lift angle λ is greater than or equal to ζ, that is, and ζ ＜ λ≤
ξ, wherein ζ be acted on by the revolution rubbing surface of intermediary's ring and the spacer ring both sides in friction torque it is described
When intermediary's ring, a left side of the lift angle λ of the circumferentially upper self-locking of the guiding friction pair can be caused to open the right side and close the small of interval
Hold endpoint value, and the angle of climb of referred to as described intermediary's ring.
3. multiple-grooved driving wheel as described in claim 1, it is characterised in that：As ζ ＞ 0, the lift angle λ is less than or equal to ζ,
That is, 0 ＜ λ≤ζ, wherein ζ is made by intermediary's ring and the revolution rubbing surface of the spacer ring both sides in friction torque
When for intermediary's ring, a left side of the lift angle λ of the circumferentially upper self-locking of the guiding friction pair can be caused to open the right side and close value
The small end endpoint value in section, the referred to as angle of climb of intermediary's ring.
4. multiple-grooved driving wheel as described in claim 1, it is characterised in that：The guide ring and intermediary's ring both sides' is described
Guide surface is the spiral tooth surface for having complementary construction, be respectively correspondingly arranged it is respective include end face, inner peripheral surface and
On one surface of peripheral surface；In axial plane, the angle between the spiral tooth surface and the axis is more than 0 degree, is less than
180 degree.
5. pressing Claims 1 to 4 any one of them multiple-grooved driving wheel, it is characterised in that：One group of spacer ring back to
The axial side of intermediary's ring is additionally provided with the limiter ring turned round around the axis, the limiter ring at least axially away from
The mode being restricted on the direction of one group of spacer ring, is non-rotatably connected to the peripheral surface of the shaft-like matrix,
Axis is provided with revolution rubbing surface upwardly facing the radial outside of the end face of intermediary's ring.
6. multiple-grooved driving wheel as described in claim 5, it is characterised in that：One group of spacer ring is non-rotatably connected to
On the peripheral surface of the tubular flange.
7. multiple-grooved driving wheel as described in claim 5, it is characterised in that：
At least two in one group of spacer ring quantity；And
It is also equipped on the limiter ring towards the axially extending tubular flange of one group of spacer ring, in one group of spacer ring
The peripheral surface of at least one tubular flange for being non-rotatably connected to the limiter ring.
8. multiple-grooved driving wheel as described in claim 5, it is characterised in that：Further include for providing the axis to the limiter ring
To the support element of limitation, it is connected to the support element at least axial restraint the peripheral surface of the shaft-like matrix.
9. pressing Claims 1 to 4 any one of them multiple-grooved driving wheel, it is characterised in that：The quantity of the rotation guiding mechanism
To be arranged substantially symmetrically in two of one group of spacer ring axial direction both ends, two institutes of two rotation guiding mechanisms
The component that intermediary's ring is substantially symmetric or full symmetric is stated, in two guide rings of two rotation guiding mechanisms
One, in a manner of being at least restricted on the direction axially away from one group of spacer ring, non-rotatably it is connected to institute
State the peripheral surface of shaft-like matrix.
10. a kind of more ropes of the spatial-wedging multiple-grooved driving wheel with the big angle of wedge with Claims 1 to 4 any one of them
Friction hoisting equipment, including driving wheel, it is characterised in that：At least one of described driving wheel is described with the big angle of wedge
Spatial-wedging multiple-grooved driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510341979.3A CN104963963B (en) | 2014-06-11 | 2015-06-11 | Spatial-wedging multiple-grooved driving wheel with the big angle of wedge and the multi-rope friction type lifting means including the driving wheel |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420327367 | 2014-06-11 | ||
| CN201420327367X | 2014-06-11 | ||
| CN201510341979.3A CN104963963B (en) | 2014-06-11 | 2015-06-11 | Spatial-wedging multiple-grooved driving wheel with the big angle of wedge and the multi-rope friction type lifting means including the driving wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104963963A CN104963963A (en) | 2015-10-07 |
| CN104963963B true CN104963963B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510341979.3A Active CN104963963B (en) | 2014-06-11 | 2015-06-11 | Spatial-wedging multiple-grooved driving wheel with the big angle of wedge and the multi-rope friction type lifting means including the driving wheel |
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| Country | Link |
|---|---|
| CN (1) | CN104963963B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4462272A (en) * | 1981-08-19 | 1984-07-31 | Rockwell International Corporation | Limited slip differential |
| CN201747821U (en) * | 2010-04-20 | 2011-02-16 | 洪涛 | Space wedge-type friction overrunning clutch |
| CN103527748A (en) * | 2012-07-03 | 2014-01-22 | 洪涛 | Space wedge type multi-groove driving wheel and lifting equipment with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011000300A1 (en) * | 2009-06-29 | 2011-01-06 | Hong Tao | Spatial wedgeing friction overrunning clutch |
-
2015
- 2015-06-11 CN CN201510341979.3A patent/CN104963963B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4462272A (en) * | 1981-08-19 | 1984-07-31 | Rockwell International Corporation | Limited slip differential |
| CN201747821U (en) * | 2010-04-20 | 2011-02-16 | 洪涛 | Space wedge-type friction overrunning clutch |
| CN103527748A (en) * | 2012-07-03 | 2014-01-22 | 洪涛 | Space wedge type multi-groove driving wheel and lifting equipment with same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104963963A (en) | 2015-10-07 |
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