CN103732935B - Floor cleaning, for its high speed rotating brush part assembly and for the driving coupling assembly of high speed rotating brush part - Google Patents
Floor cleaning, for its high speed rotating brush part assembly and for the driving coupling assembly of high speed rotating brush part Download PDFInfo
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- CN103732935B CN103732935B CN201280039196.4A CN201280039196A CN103732935B CN 103732935 B CN103732935 B CN 103732935B CN 201280039196 A CN201280039196 A CN 201280039196A CN 103732935 B CN103732935 B CN 103732935B
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Abstract
For the driving coupling assembly (50) of high speed rotating brush part, including: shaft coupling head (100), it has shaft coupling head rotary shaft (Lch) and include being arranged to relative to described shaft coupling head rotary shaft by 120 degree of rotational symmetric three drive surface (106)；And joint member (200), it has joint member rotary shaft (Lcm) and include being arranged to relative to described joint member rotary shaft by 120 degree of rotational symmetric three first drive surface (210a), wherein shaft coupling head (100) and joint member (200) can removably be coupled, make under couple state, its rotary shaft (Lch, Lcm) be aligned and shaft coupling head is rotatable, to drive each of its drive surface (106) that contacts of first drive surface (210a) corresponding with joint member, thus both applied moment and also applied axial force in this joint member.
Description
Technical field
The present invention relates to the field of hard floor cleaning equipment, and particularly to the high speed rotating brush part of this cleaning equipment
Driving shaft coupling (drive coupling).
Background technology
Driving coupling assembly is known in the prior art, and is applied in various technical field.
Such as, US 2009/0010681 (Huck etc.) discloses the general cylindrical imaging section being arranged on such as imaging cartridge
Geared system on part.This geared system includes the main body for engaging this general cylindrical image-forming block；It is attached to this main body
Cylinder oblique crank Z, this cylinder oblique crank Z has end surfaces；And three forks from the outside longitudinal extension of this end surfaces, and joined
It is set to the helical recess engagement by being provided by the drive mechanism of imaging device.
WO 2009/00041 (Wai Keung Tsui) discloses the driving force component for receiving rotary driving force, bag
Include base section, projection section and three coupling parts.This projection section includes three planes, it is set such that if they
Being extended, and illustrate to be perpendicular to the cross section of axis of projection, the form with equilateral triangle is intersected at 120 degree by they.Should
Driving force component, more specifically its projection section, be configured to engage with the recess of distortion.
Hard floor cleaning equipment can include one or more high speed rotating brush part.Each brush part can have at the first end
Axially extended elongated cylindrical core between portion and the second end, its outer surface is coated with brush part material, such as softness
Superfine fibre long filament.The first end of brush part and the second end can with bearing (bearingly) be installed in this cleaning equipment
Upper so that brush part can enclose is rotated about their axes, particularly being oriented parallel to and being adjacent to floor to be cleaned as the latter
Time.Brush part generally can from its by bearing install one of end be rotatably driven, corresponding end for this purpose
The actuating device of (electric) electromotor can be removably coupled to by the way of driving coupling assembly.Wherein brush part bearing
Be installed in hard floor cleaning equipment and be coupled to the mode of this actuating device may its work behavior of appreciable impact.
It is configured to for example, it is known to install by the way of the driving shaft coupling including axle spring mechanism with about
The rotary speed powered low speed rotation brush part of 1500rpm is in hard floor cleaning equipment.This axle spring mechanism is used to
Take the axial gap between the end of brush part and the brush part mount point of this cleaning equipment (axial play) and fix this brush
Part axial location (i.e. preventing from moving in the range of brush part axially gap) between these mount points.But, this side
Method seems and is unsuitable for installing high speed rotating brush part, and these high speed rotating brush parts can be driven under the rotating speed of at least 2500rpm, example
As at about 7000rpm.At these speeds, the slight imbalance of brush part base i.e. may cause disadvantageous high-caliber can
Hear and realizable vibration.In order to suppress these to vibrate, the fastening power being put on this brush part by axle spring mechanism may
Can increase so that this structure is hardening, but this also increases the risk of creep during this equipment for many years life span, and because of
This is the most unbalance.
Summary of the invention
It is an object of the invention to overcome or alleviated by the said one or multiple being associated with this known brush part base
Problem, especially by providing only when brush part produces enough fastening power the most when rotated and eliminates the driving connection of axial gap
Axial organ.
The first aspect of the invention thus for a kind of driving coupling assembly for high speed rotating brush part.This driving
Coupling assembly includes shaft coupling head, and it has shaft coupling head rotary shaft and includes being arranged to relative to described shaft coupling head
Rotary shaft passes through 120 degree of rotational symmetric three drive surface.This driving coupling assembly farther includes joint member, its tool
Joint member rotary shaft and including is had to be arranged to rotationally symmetrical by 120 degree relative to described joint member rotary shaft
Three the first drive surface, and three the second drive surface, each second drive surface corresponding axially-radial symmetric face and phase
The the first drive surface specular answered.This shaft coupling head and joint member removably can couple, so that in coupling
Under state, their rotary shaft substantially alignment and shaft coupling head be can around aiming axis rotatable with drive its with
Corresponding first drive surface of this joint member or each drive surface of the second drive surface contact.Additionally, this shaft coupling head
Drive surface and the first drive surface of this joint member and the second drive surface are configured so that and are rotatably driven and latter contacts
The former cause both having applied moment in this joint member and also apply axial force, wherein axial force and joint member be about
Its rotary shaft is driven clockwise or is driven unrelated counterclockwise.
In presently disclosed driving coupling assembly, in drive surface and first driving of joint member of shaft coupling head
Contact between face or the second drive surface or the power on interface point are only actuated to transmission when the part driving shaft coupling
Moment is generated to time another.Therefore, when driving shaft coupling static, do not have power particularly not have axial force to be generated, from
And prevent long-term creep effect and drive the disproportionate development in shaft coupling.This effect is the drive surface by shaft coupling head
Realizing with being appropriately configured of the first drive surface of joint member and the second drive surface, it is configured to be in association
Make.If it is substantially smooth and continuous print that these drive surface are assumed to be, and they contacts between every a pair are by extra false
Being set to and occur at single contact point, there is common orthogonal and common tangent at contact point in the rule regulation of domination surface contact,
And (not friction between smooth surface) power is only along common orthogonal transmission.Therefore, the first drive surface of joint member
Permissible with the second drive surface, such as, it is so shaped that each point of described and the non-zero simultaneously having in the axial direction
The normal surface of the nonzero component on component and tangential direction is associated (both with respect to the rotary shaft of this joint member), thus permits
Permitted this face and rotated axial power both to maintain along joint member, also maintained the moment around joint member rotary shaft.Can
Alternatively, or additionally, same configuration can in addition suitable amendment and be applicable to the drive surface of shaft coupling head.When so configured
When driving shaft coupling be inserted into actuating device and rotate between the brush part installed, can be fixedly attached to both it drive connection
The appropriate section of axial organ, via driving shaft coupling to drive brush part will provide the axial power that fastens on brush part, its fastening power is by axle
To gap extrusion system.
This joint member can thus include six drive surface, can divide three specular centerings, every pair includes
First and second drive surface.This first drive surface and this second drive surface all can be arranged to the rotation relative to this joint member
Rotating shaft is rotationally symmetrical by 120 degree.Due to rotation this in the configuration in the drive surface of this joint member and specular
Combination, joint member can drive to produce identical axial and centripetal power the most clockwise and anticlockwise.From actual corners
From the point of view of Du, this makes the brush part rotated against be furnished with the mutually the same joint member that can exchange, in order to they are more
Change and prevent the needs of the joint member that separately fabricated clockwise and counterclockwise drives.
Elaborating according to the present invention, the drive surface of shaft coupling head and the first drive surface of joint member are configured to
Make to drive and cause applying radial centripetal power (radially centering on this shaft coupling head with the former of latter contacts
force)。
It is to the driving coupling assembly rotated at high speed and permissible that radial centripetal power provides extra stability
It is maintained by the drive surface in radial directions with the normal surface of nonzero component.First drive surface of this joint member can
With, such as, be so shaped that each point of described with have be related to shaft coupling head rotary shaft in radial directions
The normal surface of nonzero component is associated.Alternatively, or additionally, same configuration can in addition suitable amendment and be applicable to connection
The drive surface of axial organ head.
It will be appreciated by those skilled in the art that can bear tangentially, axially and/or radially the driver surface of power can be
Plane or curved surface, the drive surface of its mean camber can have the constant or curvature of change.But, joining of a drive surface
Put and there will be specific advantage.
In the preferred embodiment of this driving coupling assembly, the first drive surface of this joint member can be basic phase
Same helical scanning face (helical sweep surface), it can convert straight line by screw and be formed, even if should
Line is around correspondingly rotating along joint member rotary shaft and moving simultaneously.The helicoid being consequently formed is ruled surface, for
Each point of this ruled surface has the spiral being included on this face and passing described point centered by the rotary shaft of joint member.
Assuming that frictional force is left in the basket, the power that the interface between shaft coupling head drive surface and joint member drive surface produces is along this latter
The orthogonal effect in face.Due to the orthogonal nonzero axial component that includes in screw drives face, shaft coupling head drive surface and joint member
Rotation driving contact between spiral the first drive surface can produce and trend towards so that this shaft coupling head and this joint member are divided
The axial force opened.This driving shaft coupling may thus take axial gap.In this respect the remarkable advantage in screw drives face be
The contact force of the interface between shaft coupling head and joint member is independent of shaft coupling head and joint member to axial
Position, thus the amount of the axial gap accommodated is needed independent of this driving shaft coupling.
The second aspect of the invention is for the brush part assembly of a kind of high speed rotating for hard floor cleaning equipment.This brush
Part assembly is included in axially extended elongated cylindrical shape brush part between the first end and the second end, and it is configured to rotatably pacify
It is contained in the described end of floor cleaning.One end of described brush part is provided with driving shaft coupling according to the first aspect of the invention
The shaft coupling head of assembly or joint member.
The third aspect of the invention is for a kind of floor cleaning.This equipment includes being rotatably mounted around its longitudinal axis
Elongated, be substantially in the form of columnar brush part, and be configured to the electricity driving brush part to rotate with the rotating speed of at least 2500rpm
Motivation mechanism.This equipment also includes the driving coupling assembly according to first aspect of the present invention, is arranged on motor mechanism
And between brush part so that during operation, motor mechanism the moment produced is together with the power oriented along the longitudinal axis of brush part
It is delivered on described brush part via described driving coupling assembly.
These and other features and advantages of the present invention combine attached from the detailed description of specific embodiments below of the present invention
Figure will be more fully understood, and it is intended to illustrate rather than limit the present invention.
Accompanying drawing explanation
Fig. 1 is shown schematically in the perspective view of an exemplary floor cleaning, and it includes two height rotated against
Speed brush part and two driving coupling assemblies according to the present invention, each drives coupling assembly for each described brush part；
Fig. 2 is shown schematically in the exemplary perspective view (left) driving coupling assembly according to the present invention and cross section
Top view (right), it includes the joint member of shaft coupling head and couple state；
Fig. 3 is shown schematically in perspective view (left) and the top view of the shaft coupling head driving shaft coupling shown in Fig. 2
(right)；And
Fig. 4 is shown schematically in perspective view (left) and the top view of the joint member driving shaft coupling shown in Fig. 2
(right).
Detailed description of the invention
Fig. 1 is the perspective view of the exemplary hard floor cleaning equipment 1 according to the present invention.Equipment 1 can include handle 4,
It can be connected to shell 8 via connecting rod 6.Shell 8 can accommodate the brush part 18 of two high speed rotating.Each brush part 18 is permissible
Including elongated, a substantially cylinder cowl core portion 18a, its outer surface is coated with brush part material 18b, and such as soft is ultra-fine
Fiber filament.Axially end, each brush part 18 can be rotatably installed on shell 8 around its longitudinal axis.Shell 8 can
Be configured to further receiving to drive brush part 18 each motor mechanism 14 rotated with the rotating speed of at least 2500rpm,
16.This motor mechanism can include the motor 14 for producing driving force/moment, and for driving to brush part 18 transmission
The actuating device 16 of power/moment, each time via the driving shaft coupling being arranged between corresponding brush part 18 and actuating device 16
50 transmission driving force/moments.Power line 2 may be connected to the handle 4 of this equipment 1 provides electric power to make for from power supply
Obtain drive mechanism 14,16 to be operable to.Shell 8 can also include mud guard 10, and it upwards covers brush part 18 from floor, and limits
In one dust arrester or cistern 12, dirt can be accumulated in wherein during use, and this will be elucidated below.Clean solution
(such as, this core is can be supplied to one or two brush part 18 from the clean solution cistern 20 being attached at connecting rod 6
By being expelled to the core 18a of brush part 18 to allow centrifugal force to drive water to exit from the core rotated in the case of permeable
In the soft brush part material 18b of the outside being arranged on it).In use, brush part 18 preferably rotates in opposite directions.According to
Fig. 1, this is equivalent to the corresponding left side that is counterclockwise and that turn clockwise and the brush part on the right, as by shown in curved arrow.Brush part
The either or both of which of 18 all can as described in just from the most wetted, the ground that they are placed on it can be cleaned
Plate surface.Additionally, they may affect the air stream being directed upwards towards that they carry out cleaning between the dust granule leaving floor.
Mud guard 10 can be towards dust arrester 12 deflecting air streams, and dust granule can be stored wherein.
Fig. 2 is shown schematically in perspective view (left) and the cross section of the exemplary driver coupling assembly 50 according to the present invention
Top view (right), it includes shaft coupling head 100 and the joint member 200 at couple state.Shaft coupling head 100 is with more details
It is illustrated schematically in perspective view (left) and the top view (right) of Fig. 3, and joint member 200 is illustrated with more details
It is shown in perspective view (left) and the top view (right) of Fig. 4 to property.The structure of shaft coupling head 100 and joint member 200 with
Under be elucidated with successively.
First with particular reference to Fig. 3.Shaft coupling head 100 can include having center shaft coupling head rotary shaft LchShaft coupling head
Body 102.Shaft coupling head body 102 can limit roughly triangular driving section 104, and it is around rotary shaft LchBy 120
Spend rotationally symmetrical.Driving section 104 can provide three drive surface 106, see tangential direction, it is mutual that it can be connected face 108
Connect.
Each of the drive surface 106 of shaft coupling head 100, sees and is perpendicular to rotary shaft LchPlane, can have Daqu (massive raw stater for alcholic liquor)
The small convex curvature (best seen in Fig. 2 (right) and Fig. 3 (right)) of rate radius R.This small convex curvature guarantees to work as drive surface
106 right-handed screws being brought to the opening with joint member 200 which will be described drive surface 210a, 210b to contact, it
Only single contact point between, this point be not on the respective drive face 106 of shaft coupling head and adjacent connection surface 108 it
Between edge.This latter aspect decreases the risk of abrasion.For same purpose, see and extend substantially transversely to drive surface 106
With comprise this shaft coupling head rotary shaft LchPlane, each drive surface can also have convex curvature, and its center is located substantially at connection
Axial organ head rotary shaft LchOn.
The body 102 of shaft coupling head 100 can limit center further (i.e. in rotary shaft L of shaft coupling headchPlaced in the middle)
The nose 110 of end-blocking substantially cylindrical, spherical.In the embodiment depicted, nose 110 is hollow and for jail
Admittedly accommodate drive shaft, this drive shaft out and axially extends to shaft coupling head 100 with offer power from actuating device 16 (Fig. 1)
Square gives it.Nose 110 can be preferably dimensioned such that it is suitable for the center cavity 204 of joint member 200 (seeing Fig. 4)
Inside, it is allowed to it is so used as truing tool to help on the first rank of assembling driving shaft coupling 50 to enter its couple state
Shaft coupling head 100 and joint member 200 it is radially aligned with during Duan.In the assembling driving shaft coupling 50 to enter its couple state
The further stage during, nose 110 can additionally work in coordination with the rear wall 210 of central opening 214 or joint member 200
In recessed to contribute to handling shaft coupling head 100 and joint member 200 to position, in their rotary shaft of this position
Lch、LcmOverlap.
With specific reference now to Fig. 4.Joint member 200 can include having center joint member rotary shaft LcmShaft coupling
Device member bodies 202.The front side portion of joint member body 202 can limit and be configured to receive shaft coupling head at least in part
The shaft coupling head receiving cavity 204 of 100, and more specifically receive its driving section 104 being typically triangle.Cavity 204 can
To be defined as in this space or by around axle LcmThe sidewall 206 of the general cylindrical shape of the body 202 extended is surrounded.Vertically
In axle LcmThe rear wall 212 of the general plane extended and be connected to sidewall 206 at the back side of cavity 204 can provide its bottom.
In order to make the description of the structure of joint member 200 understand, this rotary shaft LcmRefer to the rear wall 212 from cavity 204
It is associated to its front openings or the positive direction of entrance.Additionally, central rotary shaft LcmIt is taken as right-handed helix cylindrical-coordinate system
Reference axis, its reference plane are coplanar with the rear wall 212 of cavity 204.Joint member 200 will be sat with this cylinder defined here
Mark system is explained in more detail together.
Looking along tangent direction t, the sidewall 206 of cavity 204 alternately limits generally cylindrical side wall sections 208
With the driving cam 210 protruded inwardly from so that this three each along sidewall inner periphery arrange.These three identical
, the driving cam 210 protruded inwardly from can be arranged to relative to this axle LcmRotationally symmetrical by 120 degree.Again along just
Butt is looked to t, and each driving cam 210 can limit the first front wheel driving face 210a and the second rear drive face 210b, so that
Single axle driving this first and second drive surface 210a of cam 210,210b to extend with respect to corresponding driving cam 210
Mirror one another to-sagittal plane P.First and second drive surface 210a, 210b each can limit helicoid, more special
Surely open right helicoid is defined, its axle and axle LcmSubstantially overlap.
First and second drive surface 210a, the character of 210b can be best understood by from their mathematical building, for
The content of this purpose is here briefly illustrated.Generally, screw drives face 210a, 210b can be by screwing one around an axle
Straight line is generated.The helicoid so produced when this axle and this line orthogonal is referred to as " positive (right) "；Otherwise it is claimed
For " (skew) of inclination ".Additionally, this helicoid is referred to as " (closed) of Guan Bi ", otherwise when this axle and this straight line intersection
It is referred to as " open (open) ".This open right-handed screw drive surface in driving the description of embodiment of shaft coupling 50
210a, 210b can be by around rotary shafts LcmScrew isosceles triangle T to be swept out.This triangle T initially can be with rear wall 212
Coplanar.It can have a summit Tv, wherein two limits of equal length are in rotary shaft Lcm(the moving) that limit meets.Set
Put with described summit TvThe base T of relative triangle TbCan be (along this rotary shaft LcmLook in direction) formed by plane
Next 212 and the circumference string of curve limit of insertion of general cylindrical shape sidewall 206 of cavity 204.When triangle T is correspondingly same
Time along rotary shaft LcmIn constant direction translation and around rotary shaft LcmWhen rotating with constant axial speed, the end of triangle T
Limit TbScan out helicoid.When it rotates (counter clockwise direction in Fig. 3) in positive tangent direction and is translated on positive direction of principal axis
Time, the first front wheel driving face 210a can be by the base T of triangle TbScan out.Similarly, (figure is rotated when it in negative tangential direction
Clockwise direction in 3) and when being translated on positive direction of principal axis, the second rear drive face 210b can be by the base of triangle T
TbScan out.Although the embodiment of the joint member 200 described has open right-handed screw drive surface 210a, the spy of 210b
Levy, it is to be understood that the present invention is not limited to this specific shape, and such as tilt open or the closed type spiral tilted
Other drive surface geometry in face etc can be used in alternative embodiment.
The general plane rear wall 212 of this cavity needs not be continuous print, and can such as be provided with and be centered at axle Lcm's
Circular open 214, in order to the regulation of the axially projecting nose 110 on promotion shaft coupling head 100.In the second rear drive face and
The part of the rear wall 212 extended between the foot of first front wheel driving face 210a, 210b can provide stop surface, subsequently when it is by axially
When inserting cavity 204, shaft coupling head 100 can adjoin against this stop surface thus prevents from further moving to axial.Rear wall
The general cylindrical shape section 208 of this sidewall and/or thus prominent driving are adjoined in 212 positions adjoining sidewall 206, i.e. rear wall 212
The position of face 210a, 210b, can arrange concavity circular arc ramped surfaces 216 to promote at shaft coupling head 100 and to surround cavity
The face 208 of 204,210a, 210b, smooth connection between 212.
The back side of joint member 200 can be provided with the prominent of multiple circumferential arrangement equally spaced, merlons shape
Portion 218.Protuberance 218 at the back side of joint member can be ordinatedly corresponding to being arranged on the recessed of brush part core 18a (Fig. 1)
Groove so that joint member 200 can be in case being attached on it, such as by interference fit (interference fit).Once
Joint member 200 is attached on brush part core 18a, and protuberance 218 makes moment can be delivered to brush from joint member 200
Part core, in order to allow the latter to be driven to rotate with.
Owing to driving the structure of the exemplary embodiment of shaft coupling 50 to be described with reference to specific Fig. 3 and Fig. 4,
Now attention is put in its operation.
Axle L when themch、LcmIt is aligned so that positive direction point to and another axle relevant losing side relevant to an axle
Xiang Shi, shaft coupling head 100 and joint member 200 can engage in the way of the configuration shown in Fig. 2.At this couple state
Under, the driving section 104 of the general triangular of shaft coupling head 100 is received in the cavity 204 of joint member 200.If,
During axial engagement, the driving section 104 of shaft coupling head 100 disturbs the driving cam 210 protruding into cavity 204, drives
Drive surface 210a of cam 210, the spiral type of 210b guides providing and by commander's coupling segment 100, at least the one of 200
Individual rotation or spiral move and naturally solve this interference.
If applying moment to shaft coupling head 100 under the couple state of shaft coupling head 100 and joint member 200, it
Drive surface 106 will rotate on three positions (contact position of i.e. every pair contact drive surface) and joint member
200 corresponding screw drives face 210a or 210b connect, in order to form bikini shaft coupling.This bikini shaft coupling eliminates table
Now drive 3 degree of freedom of the configuration of coupling assembly.The lasting application of moment can produce in each of three contact positions
Contact force.Transfer is applied the moment at shaft coupling head 100 to joint member 200 by this contact force.During do so, contact force
Axial component will tend to making shaft coupling head 100 and joint member 200 separate.Driving section 104 accordingly, due to shaft coupling head
It is forced in the above of the slope that limited by this screw drives face 210a, 210b thus axial gap of in shaft coupling will be eliminated.
Additionally, the radial component of this contact force by tend to so that shaft coupling head 100 within the cavity 204 of joint member 200 placed in the middle.
For described drive shaft coupling 50 embodiment have spiral first and second drive surface 210a,
210b, the relation being applied between the moment of this shaft coupling head 100 and the axial force being subsequently applied to joint member 200 is advised
It is set to:
2 π M=F p, (1)
Wherein, M [Nm] is applied to the moment of shaft coupling head 100, and F [N] is the axial force that joint member 200 stands,
And p [m] is the pitch (pitch) of helicoid.In order to ensure having enough axial forces, pitch p under relatively small moment
F >=35 M can be preferably selected such that, be more preferably so that F >=100 M.Generally drive the moment required for brush part
Can be about 0.2Nm, and it is required reliably to fasten low weight high speed rotating brush part (having the quality of about 50-100 gram)
Minimum axial force the most about 7N, and optimal stability is the most observed is about 20N；Therefore the relation proposed.
Contact force can therefore provide all make moment to transmit tangential force component, be used as extrude this driving shaft coupling
The axial force component of the axial gap outside 50 and tending to relative to joint member 200 with by footpath placed in the middle for shaft coupling head 100
To force component.In practice, it can be the size of moment needed for the brush part 18 being drivingly connected to joint member 100, and it is certainly
Determine the size of the tangential component of contact force；Axially and radially the size of force component may be considered that only their derivation
(because they with the size of normal force bi-directional scaling).It is applied to drive surface 106 and the joint member of shaft coupling head 100
The size of the moment of the contact point between drive surface 210a or the 210b of 200 is tangential point of the normal force acting on this contact point
The product of the lever arm measured and be associated, this lever arm being associated is i.e. from contact point to centre rotational axis LcmRadial distance.
Therefore, if constant moment is to be transferred, increasing this lever arm must be by reducing the size quilt of this normal force tangential component
Compensating, vice versa.But, the reduction of this tangential component size may cause the reduction of corresponding axially and radially force component,
This component may need minimal size suitably to eliminate axial gap and to make the joint member 200 can be reliably with shaft coupling
Centered by device head 100 drinks joint member 200.Correspondingly, with the drive surface 106 of driving head 100 and driving of joint member 200
This lever arm that contact point between dynamic face 210a or 210b is correlated with can preferably have maximum.The driving shaft coupling described
The calculating of the embodiment of 50 shows that this lever arm may be necessarily less than 15 millimeters, and preferably less than 9 millimeters, to guarantee brush
Part assembly (i.e. including the brush part driving coupling segment) medium and small imbalance it is expected within the service life of brush part assembly
Occurring, especially because abrasion, it still can be by the centripetal force institute driving shaft coupling generation with about 7000rpm high speed rotating
Compensate.Correspondingly, the drive surface 106 of shaft coupling head 100 and joint member 200,210a, 210b can be preferably relative to them
Respective rotary shaft Lch、LcmThere is the radical length equal to or less than 15mm, and preferably equal to or smaller than 9mm.
The moment being once applied to shaft coupling head stops, and contact force just weakens, say, that if shaft coupling head 100 He
In joint member 200, at least one is rotatably around their common axle Lch、LcmMounted.Correspondingly, quiet
Time only, shaft coupling head 100 and component 200 do not apply on each other any to cause long-term creep effect and cause unbalanced
The most axially or radially power.
Although the illustrative examples of the present invention being had been described above with reference to accompanying drawing to a certain extent be described,
It is to be understood that, the present invention is not limited to these embodiments.The change of disclosed embodiment can pass through people in the art
Member implement claimed invention and to accompanying drawing, disclosure and appended claims study be understood and produce.Draw
It is used in special characteristic, structure that " (one) embodiment " or " (a) embodiment " of this specification means that this embodiment describes
Or characteristic is included at least one embodiment of the invention.Thus, phrase " in (one) embodiment " or "
In (a) embodiment " occur in and run through this specification and be not necessarily all referring to same embodiment everywhere.Furthermore, it is noted that, special
The characteristic of fixed feature, structure or one or more embodiment can combine in any suitable manner to be formed new, do not have
The embodiment being explicitly described.
Element list
1 hard floor cleaning equipment
2 power lines
4 handles
6 connecting rods
8 shells
10 mud guards
12 cisterns
14 motor mechanism
16 actuating devices
18 brush parts
18a brush part core
18b brush part material
20 cisterns
50 drive coupling assembly
100 shaft coupling heads
102 shaft coupling head bodies
104 drive section
106 drive surface
108 joint faces
110 noses
200 joint member
202 joint member bodies
204 shaft coupling head receiving cavity
206 sidewalls
The substantially cylindrical section of 208 sidewalls
210 drive cam
(a) drive surface and the second rear drive face before 210a, b first
212 rear walls
214/through the central opening of rear wall
216 concavity circular arc slopes
218 attachment protuberances
LchThe rotary shaft of shaft coupling head
LcmThe rotary shaft of joint member
P drives the radial-axial plane of symmetry of cam
R radius of curvature
T is for scanning out the isosceles triangle of the first and second drive surface
TvIt is limited in axle LcmThe fixed point of the isosceles triangle of upper motion
TbThe base of isosceles triangle
The instruction in direction radially and tangentially in r, t Fig. 4
Claims (14)
1. the driving coupling assembly (50) for high speed rotating brush part, described driving coupling assembly (50) including:
Shaft coupling head (100), has shaft coupling head rotary shaft (Lch) and include being arranged to rotate relative to described shaft coupling head
Axle passes through 120 degree of rotational symmetric three shaft couplings head drive surface (106)；And
Joint member (200), has joint member rotary shaft (Lcm) and include being arranged to relative to described shaft coupling structure
The part rotary shaft the first drive surface (210a) by 120 degree of rotational symmetric three spirals,
It is characterized in that, described joint member (200) farther includes three the second drive surface (210b), and wherein said second
Each second drive surface in drive surface (210b) is in corresponding axial-radial symmetric face (P) and corresponding first drive surface
(210a) specular, and wherein
Described shaft coupling head (100) and described joint member (200) can removably be coupled so that at couple state
Under, the shaft coupling head rotary shaft (L of described shaft coupling head (100)ch) and the joint member rotation of described joint member (200)
Axle (Lcm) be aligned and described shaft coupling head is rotatable to drive and each first drive surface of described joint member
(210a) each shaft coupling head or in described shaft coupling head drive surface (106) that contacts of the second drive surface (210b) drives
Face, described shaft coupling head drive surface (106) of wherein said shaft coupling head and described first drive surface of described joint member
(210a) He the second drive surface (210b) is configured so that being rotatably driven described first with described joint member drives
Described shaft coupling head drive surface (106) of the described shaft coupling head that face (210a) contacts with the second drive surface (210b) causes in institute
Stating and both applied moment in joint member and also apply axial force, wherein said axial force and described joint member are about described
Joint member rotary shaft (Lcm) driven clockwise or driven unrelated counterclockwise.
Driving coupling assembly the most according to claim 1, described the first of wherein said joint member (200) drives
Each first drive surface in face (210a, 210b) defines that helicoid, the axle of described helicoid revolve with described joint member
Rotating shaft (Lcm) substantially overlap.
Driving coupling assembly the most according to claim 2, described the first of wherein said joint member (200) drives
Each first drive surface in face (210a, 210b) defines helicoid, and described helicoid is by screwing straight line quilt around axis
Produce, wherein said axis and described line orthogonal but and non-intersect.
4. according to the driving coupling assembly according to any one of claim 1-3, wherein said shaft coupling head (100) described
Described first drive surface (210a) and described second of shaft coupling head drive surface (106) and described joint member (200) is driven
Dynamic face (210b) has the radical length less than or equal to 15mm.
Driving coupling assembly the most according to claim 4, the described shaft coupling head of wherein said shaft coupling head (100) drives
Move face (106) and described first drive surface (210a) of described joint member (200) and described second drive surface (210b)
There is the radical length less than or equal to 9mm.
6., according to the driving coupling assembly according to any one of claim 1-3, wherein said joint member (200) limits
Shaft coupling head receiving cavity (204), described shaft coupling head receiving cavity is with around described joint member rotary shaft (Lcm) prolong
The sidewall (206) stretched is border, and described sidewall (206) provides three radially-inwardly prominent driving cams (210), its
Described in drive each driving cam in cam to provide the first drive surface
(210a)。
Driving coupling assembly the most according to claim 6, wherein about described joint member rotary shaft (Lcm)
The visible each driving cam (210) of tangential direction provides as described first drive surface (210a) of front surface with as rear table
Described second drive surface (210b) in face.
Driving coupling assembly the most according to claim 6, wherein said shaft coupling head receiving cavity (204) further with
It is perpendicular to described joint member rotary shaft (Lcm) the general planar rear wall (212) that extends is border, and described rear wall (212)
It is connected to described sidewall (206).
The most according to Claim 8, the driving coupling assembly according to any one of, wherein said shaft coupling head includes substantially triangle
Shape drives section (104), and described general triangular drives section (104) to provide described shaft coupling head drive surface (106), described shaft coupling
Head drive surface (106) is interconnected by joint face (108).
10., according to the driving coupling assembly according to any one of claim 1-3, wherein it is being perpendicular to the rotation of described shaft coupling head
Rotating shaft (Lch) the visible described shaft coupling head (100) of plane described shaft coupling head drive surface (106) in each shaft coupling
Head drive surface has convex curvature, and described convex curvature guarantees when described shaft coupling head drive surface (106) is brought to described
Single contact point is only had when described first drive surface (210a) of axial organ component (200) or the second drive surface (210b) contact.
11. according to the driving coupling assembly according to any one of claim 1-3, is wherein extending substantially transversely to each driving
In the plane in face visible and comprise described shaft coupling head rotary shaft (Lch) the described shaft coupling head of described shaft coupling head (100)
Each shaft coupling head drive surface in drive surface (106) has convex curvature, and the center of described convex curvature is located substantially at described
Shaft coupling head rotary shaft (LchOn).
12. driving coupling assemblies according to claim 9, wherein said shaft coupling head receiving cavity (204) described
General planar rear wall (212) includes central opening (214) or recess, and wherein said shaft coupling head (100) includes from described
General triangular drives the central nose (110) that section (104) is axially projecting, and described central opening (214) or recess are configured to
Described central authorities nose is received under the described couple state of described shaft coupling head (100) and described joint member (200)
(110)。
13. 1 kinds, for high speed rotating brush part assembly (18,50) of floor cleaning (1), are included in the first end and the second end
Between extend elongated, the most columnar brush part
, and be configured to be rotatably installed in described first end and described second in floor cleaning apparatus (1) (18)
End, the one end in wherein said first end and described second end is provided with according to the driving according to any one of claim 1-12
The shaft coupling head (100) of coupling assembly (50) or joint member (200).
14. 1 kinds of floor cleanings (1), including:
Elongated, the most columnar brush part (18), described brush part (18) can be rotated around the longitudinal axis of described brush part (18)
Ground is installed；
Motor mechanism (14,16), is configured to drive described brush part (18) to rotate with the rotary speed of at least 2500rpm；With
And
According to the driving coupling assembly (50) according to any one of claim 1-11, it is arranged on described motor mechanism and institute
State between brush part so that during operation, described motor mechanism the moment produced and the longitudinal axis side along described brush part
To power be transferred on described brush part via described driving coupling assembly together.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161522265P | 2011-08-11 | 2011-08-11 | |
| EP11177194A EP2557326A1 (en) | 2011-08-11 | 2011-08-11 | Drive coupling for high-speed rotating brush |
| US61/522,265 | 2011-08-11 | ||
| EP11177194.5 | 2011-08-11 | ||
| PCT/IB2012/053849 WO2013021306A1 (en) | 2011-08-11 | 2012-07-27 | Drive coupling for high-speed rotating brush |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103732935A CN103732935A (en) | 2014-04-16 |
| CN103732935B true CN103732935B (en) | 2016-11-30 |
Family
ID=
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164052A (en) * | 1995-03-27 | 1997-11-05 | 佳能株式会社 | Electrophotographic image forming apparatus driving force transmission part and electrophotographic photosensitive drum |
| CN1171918A (en) * | 1996-04-29 | 1998-02-04 | 布莱克和戴克公司 | Cleaning apparatus with triangularshaped mount for attachment and quick disconnect |
| CN1696839A (en) * | 2004-05-11 | 2005-11-16 | 佳能株式会社 | Electrophotographic photosensitive drum, process cartridge, and electrophotographic image forming apparatus |
| EP1820987A2 (en) * | 2006-02-17 | 2007-08-22 | Coperion Waeschle GmbH & Co. KG | Bucket wheel sluice with torque plug-in coupling |
| CN201110941Y (en) * | 2007-08-23 | 2008-09-03 | 珠海天威技术开发有限公司 | Driving force transfer parts as well as processing box |
| CN101827550A (en) * | 2007-10-30 | 2010-09-08 | 阿尔弗雷德·凯驰两合公司 | Cleaning machine |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164052A (en) * | 1995-03-27 | 1997-11-05 | 佳能株式会社 | Electrophotographic image forming apparatus driving force transmission part and electrophotographic photosensitive drum |
| CN1171918A (en) * | 1996-04-29 | 1998-02-04 | 布莱克和戴克公司 | Cleaning apparatus with triangularshaped mount for attachment and quick disconnect |
| CN1696839A (en) * | 2004-05-11 | 2005-11-16 | 佳能株式会社 | Electrophotographic photosensitive drum, process cartridge, and electrophotographic image forming apparatus |
| EP1820987A2 (en) * | 2006-02-17 | 2007-08-22 | Coperion Waeschle GmbH & Co. KG | Bucket wheel sluice with torque plug-in coupling |
| CN201110941Y (en) * | 2007-08-23 | 2008-09-03 | 珠海天威技术开发有限公司 | Driving force transfer parts as well as processing box |
| CN101827550A (en) * | 2007-10-30 | 2010-09-08 | 阿尔弗雷德·凯驰两合公司 | Cleaning machine |
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Effective date of registration: 20231204 Address after: Holland Ian Deho Finn Patentee after: Fansongni Holdings Ltd. Address before: The city of Eindhoven in Holland Patentee before: KONINKLIJKE PHILIPS N.V. |