CN206458741U - One kind can position freewheel clutch - Google Patents
One kind can position freewheel clutch Download PDFInfo
- Publication number
- CN206458741U CN206458741U CN201720101457.0U CN201720101457U CN206458741U CN 206458741 U CN206458741 U CN 206458741U CN 201720101457 U CN201720101457 U CN 201720101457U CN 206458741 U CN206458741 U CN 206458741U
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- CN
- China
- Prior art keywords
- ratchet
- outer shroud
- inner ring
- freewheel clutch
- conduit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The utility model, which provides one kind, can position freewheel clutch, including an outer shroud, an inner ring and connect the outer shroud and multiple balls of inner ring；Contain a conduit within one week along the madial wall of the outer shroud, contain within one week a corresponding conduit along the lateral wall of the inner ring, the ball is located between two conduits and can rolled along conduit；One of them is provided with a ratchet for the madial wall of the outer shroud and the lateral wall of the inner ring, and another is provided with a ratchet that can be engaged or separate with the ratchet.Originally freewheel clutch, which can be positioned, can be fixed inner and outer ring relative position, and performance is not influenceed when system surmounts, and when system is engaged, inner and outer ring relative position immobilizes.
Description
Technical field
The utility model is related to mechanical field, and in particular to a kind of orientable freewheel clutch.
Background technology
Freewheel clutch is the basic part occurred as electromechanical integration develops, it be for prime mover and working machine it
Between or machine inside starting power transmission between driving shaft and driven shaft and the important component of separation function, be using actively, from
The velocity variations of dynamic device or device of the conversion with automatic clutch function of direction of rotation.Fig. 1 is common sprag type one-way
Freewheel clutch schematic diagram, it includes outer shroud 11, inner ring 12, voussoir 13 and spring 14.Fig. 2 is common pawl type overdrive clutch
Device schematic diagram, it includes outer shroud 21, inner ring 22 and ratchet 23.
Usual freewheel clutch reaction is quick, and versatility is good, but in engagement its outer shroud, inner ring relative position it is not solid
It is fixed, it is impossible to ensure that the relative position of inside and outside interannular is fixed.When system is to being located demand, such as system is needed on slave unit
, can be to aggressive device angle using stepper motor or servo motor driving system when a little carrying out infrared thermography or picture catching
Degree position is accurately controlled, to position the position of slave unit point.But work as clutch override, when re-engaging with, actively and
Slave unit relative angular position is just changed, driven although can be now accurately positioned to aggressive device
Position has not been known.
To solve this problem, conventional method often also needs to add aided positioning system to realize the function, and this is not only
Volume and price are added, potential trouble point has also been additionally introduced.
Utility model content
To overcome above-mentioned deficiency, the utility model, which provides one kind, can position freewheel clutch, can make freewheel clutch
Inner and outer ring relative position is fixed, and performance is not influenceed when system surmounts, and when system is engaged, inner and outer ring relative position is fixed
It is constant.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：
One kind can position freewheel clutch, including an outer shroud, an inner ring and connect the outer shroud and multiple balls of inner ring；
Contain a conduit within one week along the madial wall of the outer shroud, contain within one week a corresponding conduit, the ball position along the lateral wall of the inner ring
It can roll between two conduits and along conduit；The madial wall of the outer shroud and the lateral wall of the inner ring one of them be provided with a spine
Tooth, another is provided with a ratchet that can be engaged or separate with the ratchet.
Further, ratchet includes a composition surface and a parting surface；Ratchet includes hook tip and the radix unguis in inner ring
Portion, hook tip can be rotated around radix unguis portion in an angular range, in ratchet side provided with a spring for supporting the ratchet.
Further, ratchet is on the madial wall of outer shroud, and ratchet is on the lateral wall of inner ring.
Further, ratchet is on the lateral wall of inner ring, and ratchet is on the madial wall of outer shroud.
Further, a raised counterweight, the raised counterweight and the ratchet on outer shroud or spine are additionally provided with the side wall of outer shroud
Pawl quality is equal, is arranged symmetrically on the center of circle.
Further, the corresponding central angle angle of ratchet or ratchet on outer shroud is 5-30 degree.
Further, the corresponding central angle angle of raised counterweight is the ratchet or the corresponding central angle of ratchet on outer shroud
1.497 again.
Further, outer shroud and inner ring are integral type.
Further, inner ring is separate type, including positioning inner ring and slip inner ring, and ratchet or ratchet are located at positioning inner ring
On, conduit, which is located at, to be slided in inner ring.
Further, outer shroud is separate type, including positioning outer shroud and slip outer shroud, and ratchet or ratchet are located at positioning outer shroud
On, conduit, which is located at, to be slided on outer shroud.
Further, inner ring and outer rings are separate type；Inner ring includes positioning inner ring and slides inner ring, ratchet or ratchet position
In in positioning inner ring, conduit is located in slip inner ring；Outer shroud includes positioning outer shroud and slides outer shroud, accordingly ratchet or ratchet position
In on positioning outer shroud, conduit is located on slip outer shroud.
The beneficial effects of the utility model are：What the utility model was provided positions freewheel clutch by using unique
Ratchet and ratchet, can fix the inner and outer ring relative position of freewheel clutch, performance is not influenceed when system surmounts, when
Inner and outer ring relative position immobilizes when system is engaged., can be (or outer to positioning inner ring by further using separate structure
Ring) and slide inner ring (or outer shroud) and installed respectively, easier for installation, size can be different, be applicable more apply and
Installation environment.This clutch provides the best angle scope of ratchet and counterweight, and provides the two and be easy to by calculating and correcting
The shape of processing, reduces processing cost.
Brief description of the drawings
Fig. 1 is unidirectional wedge-typed overrunning clutch floor map.
In figure：11- outer shrouds, 12- inner ring, 13- voussoirs, 14- springs.
Fig. 2 is pawl-type overrunning clutch floor map.
In figure：21- outer shrouds, 22- inner ring, 23- ratchets.
Fig. 3 A are that integral type can position freewheel clutch floor map.
Fig. 3 B are that integral type can position freewheel clutch schematic perspective view.
In figure：31- outer shrouds, 32- balls, 33- inner ring, 34- ratchets, 35- ratchets, 36- projection counterweights, 37- springs, 38-
Outer shroud conduit, 39- inner ring conduits.
Fig. 4 is that inner ring separate type can position freewheel clutch schematic perspective view.
In figure：41- outer shrouds, 42- positioning inner ring, 43- balls, 44- slides inner ring.
Fig. 5 is that outer shroud separate type can position freewheel clutch schematic perspective view.
In figure：51- slides outer shroud, 52- balls, 53- inner ring, 54- positioning outer shrouds.
Fig. 6 is that inner ring outer shroud separate type can position freewheel clutch schematic perspective view.
In figure：61- slides outer shroud, 62- balls, and 63- slides inner ring, 64- positioning outer shrouds, 65- positioning inner ring.
Fig. 7 A are that can position the outer ring structure floor map of freewheel clutch.
In figure：71- outer shrouds, 72- ratchets, 73- projection counterweights.
Fig. 7 B are the calculating schematic diagram for the ratchet and projection that can position freewheel clutch.
In figure：1- circles are cut, 2- triangles, and 3- circles are cut.
Fig. 8 is that another integral type can position freewheel clutch schematic perspective view.
In figure：81- outer shrouds, 82- balls, 83- inner ring, 84- ratchets, 85- ratchets, 86- projection counterweights, 87- springs.
Fig. 9 is the motor dual drive system schematic diagram of an application example.
In figure：91- drive devices A, 92- freewheel clutch A, 93- clutch plate, 94- freewheel clutches B, 95- drive device
B, 96- object, 97 high speed cameras.
Automatic sample separation and transfer device top view of Figure 10 A for another application example.
Figure 10 B are Figure 10 A along A-A sectional views.
In figure：101- drive shafts, 102- inner discs, 103- external disks, 104- test bottles, 105- sample bottles, 106- can position super
More clutch, 107- motors.
Embodiment
To enable features described above of the present utility model and advantage to become apparent, special embodiment below, and coordinate appended
Figure is described in detail below.
Embodiment one
The present embodiment, which provides one kind, can position freewheel clutch, be typical integral type, structure as shown in Fig. 3 A, Fig. 3 B,
Include inner ring 33, outer shroud 31, ball 32, ratchet 34, ratchet 35, raised counterweight 36 and spring 37.Edge on the lateral wall of inner ring 33
The same height that circumference contains on an inner ring conduit 39, the madial wall of outer shroud 31 for one week circumferentially contains a corresponding outer groove in one week
Road 38, inner ring 33 and outer shroud 31 are movably connected by the ball 32 being stuck in conduit.Divide in inner ring 33 and outer shroud 31
She You not unique ratchet 34 and unique ratchet 35.
It is one that ratchet 34, which is included at hook tip and the radix unguis portion being rotatably connected in inner ring, the dewclaw root of inner ring 33 place,
The cylindrical groove of one side opening, A/F is less than the diameter of cylindrical groove, and radix unguis portion is and the cylindrical groove dimensional fits
Cylinder, i.e. diameter are slightly less than groove diameter, but more than A/F, so may be such that hook tip rotated in groove and be unlikely to from
Opening is detached.The side that spring 37 is toppled in ratchet 34, the root of spring 37 and the connected mode of inner ring 33 are similar in appearance to ratchet 34
Radix unguis portion and the connection of inner ring 33, that is, be connected in a cylindrical groove, but difference is that spring 37 is real by natural resiliency
Now fix clamping.The tip of spring 37 is resisted against the hook tip of ratchet 34, to realize resilient support, and elastic force causes ratchet 34 to inclining
The opposite direction movement in direction, to ensure that hook tip is resisted against on the madial wall of outer shroud 31.The shape of ratchet 35 is similar to what circle was cut
Half, the left side on both sides is shorter and precipitous, points to the center of circle, herein referred to as composition surface；The right is longer and gentle, herein referred to as
Parting surface.Arrow direction is rotated in inner ring 33 is according to Fig. 3 A, and rotating speed is more than outer shroud 31 in equidirectional rotating speed, ratchet
34 hook tip is abutted to the composition surface of ratchet 35, realizes the engagement of this clutch.In addition, working as outer shroud 31 and inner ring 33 along arrow
When the opposite direction of head is rotated, if inner ring 33 is less than the speed of outer shroud 31, the combination of the two can be also realized.This clutch and only in spine
It is just engageable when pawl 34 is stuck in the position of ratchet 35, the position be it is unique, therefore this clutch position be it is fixed, from
And realizing to position.Turn when rotating the rotating speed of inner ring 33 less than 31 rotating speed of outer shroud in the direction of the arrow, or along the opposite direction of arrow
When the dynamic speed of inner ring 33 is more than 31 speed of outer shroud, the hook tip of ratchet 34 is separated with the composition surface of ratchet 35, so that driving dress
Put and depart between slave unit, realization surmounts state.
Embodiment two
Above-described embodiment is integral type structure, but to adapt to more installation environments, this clutch can also be separate type knot
Structure, there is three types, including inner ring separate type, outer shroud separate type and inner ring outer shroud separate type.The present embodiment is provided in a kind of
Ring separate type positions freewheel clutch, as shown in figure 4, structure is substantially the same with embodiment one, difference is：Inner ring
It is divided into positioning inner ring 42 and slides the two parts of inner ring 44, ratchet and spring is located at 42 in positioning inner ring, and conduit, which is located at, slides inner ring
On 44.
Embodiment three
What the present embodiment provided a kind of outer shroud separate type positions freewheel clutch, as shown in figure 5, structure and embodiment one
It is substantially the same, difference is：Outer shroud is divided into positioning outer shroud 52 and slides the two parts of outer shroud 51, and ratchet and raised counterweight are located at
Position on outer shroud 52, conduit, which is located at, to be slided on 51 on outer shroud.
Example IV
What the present embodiment provided a kind of inner ring outer shroud separate type positions freewheel clutch, as shown in fig. 6, structure and implementation
Example one is substantially the same, and difference is：Inner ring is divided into positioning inner ring 65 and slides inner ring 63, and ratchet and spring are located in positioning
On ring 65, conduit, which is located at, to be slided in inner ring 63；Outer shroud is divided into positioning outer shroud 64 and slides the two parts of outer shroud 61, and ratchet and projection are matched somebody with somebody
It is located at again on positioning outer shroud 64, conduit, which is located at, to be slided on outer shroud 61.
It is noted that the clutch of above-mentioned three kinds of separate structures, its separated inner ring or outer ring is necessary when mounted
For installation with one heart, but can be respectively mounted and adjust fixed position, separated inner ring or outer ring can using different internal diameters or
External diameter, so greatly extends the application and environment of application.
The utility model provide various types of freewheel clutches that position due to a ratchet and ratchet can only be used,
If without balanced measure, mass of system center would not can produce vibration in Pivot axle, during rotation and lead to not work,
The center of gravity that raised counterweight is deviateed with balance system must be added on the inside of outer shroud for this.As shown in Figure 7 A, in the ratchet of outer shroud 71
72 offside adds raised counterweight 73, raised counterweight 73 be able to must ensure first ratchet different directions by and be not obstructed,
Secondly it is easy to process, therefore raised counterweight 73 uses round section structure as shown in the figure.For the balance of guarantee system, in the two thickness
Under the premise of identical, it is necessary to assure ratchet 72 and raised counterweight 73 are arranged and area equation along central point, are hereafter opened up accordingly
Open calculating.
Calculate schematic diagram as shown in Figure 7 B, ratchet 72 by circle cut 1 and triangle 2 constitute, raised counterweight 73 by circle cut 3 groups
Into.The corresponding central angle of ratchet 72 is θ1, the corresponding central angle of raised counterweight 73 is θ2, θ1And θ2For symmetrical (the i.e. θ in the center of circle1Rotation
θ is in after 180 degree2Center).Wherein circle cuts 1 area S1≈R2θ1 3/ 12, the area S of triangle 22≈R2θ1 3/ 4, therefore the area of ratchet 72
=S1+S2≈R2θ1 3/3.Counterweight 73 areas of projection are equal to circle and cut 3 area S3, S3≈R2θ2 3/12., must S to make system balancing1+S2
=S3, therefore draw R2θ1 3/3≈R2θ2 3/ 12, θ2≈1.5874θ1。
By many experiments and using dynamic balance instrument checking computations amendment on the basis of above-mentioned calculating, ratchet 72 and projection are obtained
The design of counterweight 73 need to meet θ1Between 5-30 degree, the θ in error allowed band2=1.497 θ1, you can balanced structure is realized,
And realize system even running.
Embodiment five
To there is provided another integral type herein can position freewheel clutch, and freewheel clutch is positioned substantially with embodiment one
Identical, difference is, the installation site contrast of ratchet, ratchet and spring, as shown in Figure 8.Specially ratchet 85 is set
In on the lateral wall of inner ring 83, ratchet 84 and spring 87 are on the madial wall of outer shroud 81.When rotating clockwise outer shroud along along Fig. 8
When 81 rotating speeds are more than inner ring 83, or when rotating counterclockwise the rotating speed of outer shroud 81 less than inner ring 83, ratchet 84 is engaged with ratchet 85, no
Then the two is separated.
Embodiment six
There is provided another inner ring separate type herein position freewheel clutch, and overdrive clutch is positioned with embodiment two
Device is substantially the same, and difference is, the installation site contrast of ratchet, ratchet and spring, is repeated no more.
Embodiment seven
There is provided another outer shroud separate type herein position freewheel clutch, and overdrive clutch is positioned with embodiment three
Device is substantially the same, and difference is, the installation site contrast of ratchet, ratchet and spring, is repeated no more.
Embodiment eight
There is provided another inner ring outer shroud separate type herein positions freewheel clutch, surmounts with positioning for example IV
Clutch is substantially the same, and difference is, the installation site contrast of ratchet, ratchet and spring, is repeated no more.
Each raised counterweight of above-described embodiment five to eight still on outer shroud, ratchet and spring on outer shroud it is just right
Face, quality is equal to ratchet and subtracts the quality that two cylindrical plows fall with ratchet quality sum.Wherein, two cylindrical grooves are ratchet
Radix unguis portion and spring root where two cylindrical grooves, the quality that two cylindrical plows fall refers to that outer ring material digs this
The quality that two grooves are dug.The quality of raised counterweight and corresponding center of circle angle are same as described above, and here is omitted, but need
, it is noted that the data are not to be limited.
Now arrange for an application example, as shown in Figure 9.In a typical motor dual drive system, drive device A91 and
Drive device B95 is rotated with 800-1500 rpms of speed driving clutch plate 93.Wherein, freewheel clutch B94 is this reality
With the freewheel clutch that positions of new offer, freewheel clutch A92 is common freewheel clutch.There is right side on clutch plate 93
One object 96, it is necessary in drive device B95 main drivings the image detection image.If, can only without positioning function
All positions of whole clutch plate 93 are shot using high speed camera 97, and tries slow play Video content and finds the point for needing to monitor.
And if freewheel clutch has positioning function, then rotation phase angle can be controlled by drive device B95, and make high speed camera
97 only can expose when target point passes through before camera, and obtain the image information in the single-point region of real-time continuous.
Another application example is now provided, extraction, centrifugation and the extraction separating liquid of sample are non-during Organic Experiment is analyzed
One kind usually is operated, and the automation of operation implementation means are very limited, usually mechanical arm secondary transfer, and cost is non-
Chang Anggui.And separated and transfer device as Figure 10 A, Figure 10 B show a simple and convenient automatic sample, wherein can position super
More clutch 106 is engaged in drive shaft 101 when arrow direction is rotated.Sample bottle 105 and test bottle 104 can position it is super
Two vial positions are identical when more clutch 106 is engaged, and two bottles of passages are opened, and liquid can flow to test bottle from sample bottle 105
In 104.
In use, motor 107 is rotated with 4000 rpms of rotating speed to the opposite direction of arrow direction first, now
Freewheel clutch 106 can be positioned and be in and surmount state, external disk 103 is substantially not subject to driving force, do not rotated substantially.Now inner disc
102 are driven the driving force rotation of axle 101.Sample in sample bottle 105 by centrifugal force because being layered.Motor 107 stops afterwards
Rotation stop is moved, and presses arrow direction with 1000 rpms of rotational speed.Freewheel clutch 106 can be now positioned quickly to locate
In engagement state, inner disc 102 and the synchronous axial system of external disk 103, test bottle 104 and sample bottle 105 are in same position, and liquid is logical
Road is opened, and outer layer liquid flow is into test bottle 104 in sample bottle 105.After liquid full in test bottle 104, flowing transfer stops
Only, then can according to test bottle 104 volumetric void fraction liquid transfer amount and determine to collect outer layer or internal layer reagent.
Claims (10)
1. one kind can position freewheel clutch, it is characterised in that including an outer shroud, an inner ring and connect the outer shroud and inner ring
Multiple balls；Contain a conduit within one week along the madial wall of the outer shroud, contain a corresponding conduit, institute within one week along the lateral wall of the inner ring
Ball is stated between two conduits and can be rolled along conduit；The madial wall of the outer shroud and the lateral wall of the inner ring one of them
Provided with a ratchet, another is provided with a ratchet that can be engaged or separate with the ratchet.
2. according to claim 1 position freewheel clutch, it is characterised in that ratchet includes a composition surface and a separation
Face；Ratchet includes hook tip and the radix unguis portion in inner ring, and hook tip can be rotated around radix unguis portion in an angular range, in spine
Pawl side is provided with a spring for supporting the ratchet.
3. according to claim 1 position freewheel clutch, it is characterised in that ratchet is located on the madial wall of outer shroud,
Ratchet is on the lateral wall of inner ring.
4. according to claim 1 position freewheel clutch, it is characterised in that ratchet is located on the lateral wall of inner ring,
Ratchet is on the madial wall of outer shroud.
5. according to claim 1 position freewheel clutch, it is characterised in that it is convex to be additionally provided with one on the side wall of outer shroud
Counterweight is played, the raised counterweight is equal with the ratchet on outer shroud or ratchet quality, is arranged symmetrically on the center of circle.
6. according to claim 5 position freewheel clutch, it is characterised in that the ratchet or ratchet on outer shroud are corresponding
Central angle angle is 5-30 degree, and the corresponding central angle angle of raised counterweight is the ratchet on outer shroud or the corresponding central angle of ratchet
1.497 again.
7. according to claim 1 position freewheel clutch, it is characterised in that outer shroud and inner ring are integral type.
8. according to claim 1 position freewheel clutch, it is characterised in that inner ring is separate type, including in positioning
Ring and slip inner ring, ratchet or ratchet are located in positioning inner ring, and conduit, which is located at, to be slided in inner ring.
9. according to claim 1 position freewheel clutch, it is characterised in that outer shroud is separate type, including positioning is outer
Ring and slip outer shroud, ratchet or ratchet are located on positioning outer shroud, and conduit, which is located at, to be slided on outer shroud.
10. according to claim 1 position freewheel clutch, it is characterised in that inner ring and outer rings are separate type；It is interior
Ring includes positioning inner ring and slides inner ring, and ratchet or ratchet are located in positioning inner ring, and conduit, which is located at, to be slided in inner ring；Outer shroud includes
Position outer shroud and slide outer shroud, accordingly ratchet or ratchet are located on positioning outer shroud, conduit, which is located at, to be slided on outer shroud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101457.0U CN206458741U (en) | 2017-01-25 | 2017-01-25 | One kind can position freewheel clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720101457.0U CN206458741U (en) | 2017-01-25 | 2017-01-25 | One kind can position freewheel clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458741U true CN206458741U (en) | 2017-09-01 |
Family
ID=59694859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720101457.0U Withdrawn - After Issue CN206458741U (en) | 2017-01-25 | 2017-01-25 | One kind can position freewheel clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458741U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704407A (en) * | 2017-01-25 | 2017-05-24 | 北京本立科技有限公司 | Positionable overrunning clutch |
| CN110292700A (en) * | 2019-06-04 | 2019-10-01 | 兖矿新里程总医院 | A kind of stomach tube guiding device |
-
2017
- 2017-01-25 CN CN201720101457.0U patent/CN206458741U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704407A (en) * | 2017-01-25 | 2017-05-24 | 北京本立科技有限公司 | Positionable overrunning clutch |
| CN106704407B (en) * | 2017-01-25 | 2019-07-23 | 北京本立科技有限公司 | One kind can position freewheel clutch |
| CN110292700A (en) * | 2019-06-04 | 2019-10-01 | 兖矿新里程总医院 | A kind of stomach tube guiding device |
| CN110292700B (en) * | 2019-06-04 | 2021-06-15 | 兖矿新里程总医院 | Stomach tube guiding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20190723 |