CN2931919Y - Ratchet and ratchet pawl type overrunning clutch - Google Patents
Ratchet and ratchet pawl type overrunning clutch Download PDFInfo
- Publication number
- CN2931919Y CN2931919Y CN 200620117877 CN200620117877U CN2931919Y CN 2931919 Y CN2931919 Y CN 2931919Y CN 200620117877 CN200620117877 CN 200620117877 CN 200620117877 U CN200620117877 U CN 200620117877U CN 2931919 Y CN2931919 Y CN 2931919Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- pawl
- clutch
- spring
- free wheel
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
- Mechanical Operated Clutches (AREA)
- Transmission Devices (AREA)
Abstract
The utility model relates to a novel overrunning clutch of ratchet and pawl comprising a ratchet 1, a pawl bracket 2, a small crisscross pawl 3, a pawl axle 4, a nonmagnetic drawback spring5, and a pin roll 6, or the like, wherein the pawl bracket and the ratchet rotate around the some axis at the support of a pair of bearings. When the pawl is joggled with a ratch of the ratchet on the effect of recoil strength, the ratchet and the pawl bracket rotate synchronously and the clutch transmits the power. When the speed of an output shaft is faster than the speed of an input shaft, the clutch overruns and doesn't export a power. The clutch adopts a nonmagnetic drawback apparatus which can't be magnetized to ensure the assembly of the clutch and cleanliness in using, and increase the service life and reliability. The clutch is capable of being used in any transmission organ which uses an overrunning clutch, in particular to the work station of over loading and frequent transcendence and joggle, better illustrating the advantages of long service life and good reliability.
Description
Technical field
The utility model relates to a kind of click formula free wheel device, this clutch is by the engagement transferring power of ratchet and hook tooth, overall structure that it is novel and non magnetic resetting means can make it keep higher turbidity test, can obtain long working life and good operation reliability.Can be used for being particularly useful for heavy duty and the frequent operational site of meshing and surmounting in the driving mechanism of any needs use free wheel device, more show the advantage of its long service life, stable work in work and good reliability.
Background technique
China utility model patent ZL01129231.8 and ZL200420029913.8 disclose the ratchet type overrunning clutch that a kind of ratchet relies on magnetic force to reset respectively.The clutch of this employing " T " font ratchet and magnetic force resetting means, test and the utilization of long period on oil and engineering machinery, have been carried out, prove that its working life is longer, can stable work under heavy duty and the frequent working state that meshes and surmount.But,, bring the some shortcomings part also for this clutch just because of the ratchet that has adopted magnetic force resetting means and " T " font structure.Here it is: one, magnet be mounted in the corresponding pawl disk of ratchet tail end on, rely on the suction of magnet to make ratchet carry out reseting movement, the required reposition force of the size of its magnetic force and ratchet motion is difficult to agree, the suction of magnet is minimum when ratchet needs bigger reposition force away from ratchet, and when ratchet is about to contact with ratchet, the suction maximum of magnet, therefore when ratchet contacts with ratchet, easily produce bigger impact force, when surmounting at a high speed, can accelerate its wearing and tearing; They are two years old, because more strong magnet has been installed on pawl disk, make pawl disk to be magnetized in various degree, therefore in assembling and using process, especially near magnet, always building up more ferromagnetic substance on the pawl disk, the turbidity test of clutch are difficult to guarantee, might accelerate the wearing and tearing of moving element; Its three owing to use the ratchet of " T " font structure, in order not hinder the motion of ratchet head portion, pawl disk must be made special shape, this just makes that pawl disk is complex-shaped, processing difficulties.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of existing ratchet type overrunning clutch technology, a kind of novel ratchet pawl type free wheel device of non magnetic resetting means is provided, improve processing technology of components, the turbidity test that improve assembling and use, prolong the working life of clutch, improve the usability and the reliability of free wheel device.
The utility model solves its technical problem and realizes by following proposal.
The click formula free wheel device that the utility model is related mainly is made up of major parts such as the ratchet that has ratchet, the pawl base that has ratchet and resetting means fitting seat, ratchet, pawl axis and non-magnetic force resetting means.Ratchet is installed on the pawl base by pawl axis, and it can be swung on axle.Can be directly or indirectly between ratchet and the pawl base supporting by pair of bearings guarantee that it rotates around same axis.When under the effect of ratchet at reposition force during with the ratchet engagement of ratchet, ratchet and pawl base rotate and transferring power synchronously.Clutch surmounts each spinning of ratchet and pawl base, the unpowered output of clutch when the rotating speed of driven shaft surpasses speed drive shaft.The shape of ratchet can be varied, and the utility model is based on crosslet, but also can make other shape according to the difference of service condition.Resetting means is non-magnet spring, based on metal spring.Clutch has outer gearing and two kinds of structural types of interior engagement, and outer gearing is that the outer shroud of clutch is a ratchet, and ratchet is side within it, and interior engagement is that the interior ring of clutch is a ratchet, and ratchet is in its outside.
The characteristics of this click formula free wheel device are that the transmission of power is directly to transmit by the engagement between ratchet and the hook tooth, rather than by friction or extruding force transmission.Do not have slide relative between ratchet and the ratchet during transferring power, thereby it is minimum to wear and tear, even there are certain abrasion not influence the transmission of power, clutch can be not therefore and lost efficacy (skidding) yet yet.
The characteristics of this click formula free wheel device also are to adopt nonmagnetic resetting means, whole clutch is carrying magnetic not, thereby can improve clutch assembling and operating turbidity test, reduces the wearing and tearing of moving element, prolong its working life, thereby improve the reliability of clutch.Resetting means also can use nonmetallic rubber spring based on metal spring (as torsion spring, helical spring, flat spring and torsion bar spring etc.).The head that the elastic force of spring acts on ratchet resets it.Ratchet leaves ratchet when surmounting state when clutch is in, and reverses (or compression) spring this moment, and the big more elastic force of the distance of leaving is big more, and this power is the ratchet needed recuperability that resets rapidly just.And, can reduce the impact force of ratchet to ratchet when the elastic force minimum of ratchet spring during near ratchet.Metal spring is most popular in the world a kind of yielding support and resetting means, as long as design parameter chooses rationally, the spring workmanship is guaranteed, and metal spring is can be permanently effective and carry out work reliably.
The characteristics of this click formula free wheel device also are the structure of ratchet, and ratchet is based on crosslet, promptly ratchet protrude slightly except that bearing hole position, middle part and, the width at all the other positions is substantially the same.Ratchet can be divided into head, middle part and afterbody three parts, and head mainly is transferring power and bears recuperability; The middle part is the support of ratchet, for having the pin-and-hole of oilhole and oil groove, by pawl axis ratchet is installed on the pawl base; Afterbody mainly has been the balanced action of ratchet, and the size of regulating afterbody can reduce the impact force of ratchet centrifugal force to ratchet, and is particularly important when surmounting operation at a high speed.According to the difference of service condition, the shape of ratchet also can be made other shape.
The characteristics of this click formula free wheel device also are the structure of pawl base, owing to use the ratchet of crosslet, thereby can adopt discoidal pawl base, the rigidity of this pawl base is very much not yielding, because technology capability simple in structure is good, help producing in batches and reducing cost simultaneously.
Description of drawings
Fig. 1 and Fig. 2 are the cross section and the longitudinal section schematic representation of outer gearing free wheel device, are a kind of main structure forms of the present utility model.
Fig. 3 and Fig. 4 are the cross section and the longitudinal section schematic representation of interior engagement free wheel device, are another kind of main structure forms of the present utility model.
Fig. 5 is the schematic representation of outer gearing free wheel device ratchet.
Fig. 6 is the schematic representation of interior engagement free wheel device ratchet.
Fig. 7 and Fig. 8 are the front view and the longitudinal section schematic representation of outer gearing free wheel device pawl base.
1-ratchet, 2-pawl base, 3-ratchet, 4-pawl axis, 5-return spring (this legend is a torsion spring), 6-bearing pin, 7-bearing, 8-ratchet, the head of 9-ratchet, the middle part of 10-ratchet, the afterbody of 11-ratchet among the figure.
Embodiment
Fig. 1 and Fig. 2 are the outer gearing free wheel devicees, and the outer shroud of clutch is a ratchet, and interior ring is a pawl base.Clutch is made up of major parts such as ratchet 1, pawl base 2, ratchet 3, pawl axis 4, return spring 5, bearing pin 6 and bearings 7.
Be processed with the ratchet 8 of a greater number at the inner side surface of ratchet, the ratchet and the corresponding return spring of some are installed by pawl axis and bearing pin on pawl base, the number of teeth of ratchet and the quantity of ratchet is prime number each other, can make clutch can obtain minimum idle stroke by surmounting when meshing.The ratchet of crosslet structure can be divided into head 9, middle part 10 and afterbody 11 3 parts, and the head transferring power is also born recuperability, and the middle part is the supporting pin-and-hole of ratchet, and afterbody plays the balanced action of ratchet.Return spring is high-intensity torsion spring, and two working arms of spring act on the head of pawl base and ratchet respectively.
Supporting bottom ratchet wheel and pawl base in pair of bearings rotate around same axis, and make whole clutch become as a whole.The head of ratchet is close to the inner side surface of ratchet under the effect of return spring power, and ratchet and pawl base rotate synchronously when the ratchet engagement on any one ratchet and the ratchet, clutch transmits power.Clutch surmounts each spinning of ratchet and pawl base, the unpowered output of clutch when the rotating speed of output shaft surpasses input shaft rotational speed.According to the needs that use, between ratchet and pawl base, also can not establish block bearing, but be fixed in respectively on the interior outer shaft of coaxial rotation, its usability is constant.
Fig. 3 and Fig. 4 are interior engagement free wheel devicees, and the interior ring of clutch is a ratchet, and outer shroud is a pawl base.In the working principle of engagement free wheel device identical with the outer gearing free wheel device, its structure is similar substantially, but less in the following torque ratio that can transmit of identical appearance size, so is mainly used in the smaller operational site with specific use of transmitting torque.
The ratchet and pawl seat of clutch all is not only to have imported power but also can outputting power, and they can connect with other driving parts that matches respectively by key, spline, bolt and modes such as interference is connected, thus transferring power mutually.Also can be made of one under special circumstances,, make mechanism more compact to reduce its radial dimension with the part that matches such as axle, gear, sprocket wheel, belt wheel etc.
Claims (5)
1 one kinds of novel ratchet pawl type free wheel devicees are by the ratchet that is provided with ratchet, be provided with the pawl base of ratchet and restoring means fitting seat, the crosslet ratchet, pawl axis, major parts such as non magnetic resetting means are formed, between ratchet and pawl base, directly or indirectly support with pair of bearings, to guarantee around same axis rotation and transferring power, for energy input and output power, the ratchet and pawl seat of clutch can pass through key, spline, modes such as bolt and interference connection connect with other driving parts that matches respectively, in case of necessity also can with part that matches such as axle, gear, sprocket wheel, belt wheels etc. are made of one.
2 click formula free wheel devicees according to claim 1, its structural type have two kinds of outer gearing and interior engagements, and the outer shroud of outer gearing free wheel device is a ratchet, and ratchet is side within it; And the interior ring of interior engagement free wheel device is a ratchet, and ratchet is in its outside.
3 according to claim 1 and 2 described click formula free wheel devicees, the resetting means that it is characterized in that ratchet is nonmagnetic spring mechanism, based on metal spring, also can use nonmetallic rubber spring, employed metal spring mainly contains torsion spring, helical spring, torsion bar spring and flat spring etc., spring by bearing pin or bolt on pawl base.
4 according to claim 1 and 2 described click formula free wheel devicees, it is characterized in that ratchet is the crosslet structure, the ratchet engagement transferring power of its head and ratchet is also born recuperability, and the middle part is the pin-and-hole that has oilhole and oil groove, and afterbody mainly plays balanced action.
5 according to claim 1 and 2 described click formula free wheel devicees, it is characterized in that pawl base is a disc-shaped structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117877 CN2931919Y (en) | 2006-05-30 | 2006-05-30 | Ratchet and ratchet pawl type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620117877 CN2931919Y (en) | 2006-05-30 | 2006-05-30 | Ratchet and ratchet pawl type overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2931919Y true CN2931919Y (en) | 2007-08-08 |
Family
ID=38348418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620117877 Expired - Fee Related CN2931919Y (en) | 2006-05-30 | 2006-05-30 | Ratchet and ratchet pawl type overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2931919Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526669C (en) * | 2007-10-18 | 2009-08-12 | 东方电气集团东方汽轮机有限公司 | Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same |
| CN101871496A (en) * | 2010-06-04 | 2010-10-27 | 江苏森威集团有限责任公司 | Special bearing flywheel for electric power-assisted bicycle |
| CN102209832A (en) * | 2008-09-10 | 2011-10-05 | 史密斯运输股份有限公司 | Locking clutch for downhole motor |
| CN101725648B (en) * | 2009-12-21 | 2012-05-23 | 大连理工大学 | Unidirectional transmission device integrated with ratchet gear |
| CN103775496A (en) * | 2012-10-25 | 2014-05-07 | 赵广胜 | Overrunning transmission bearing and manufacturing method thereof |
| CN105351087A (en) * | 2014-08-20 | 2016-02-24 | 许明德 | Annular air cylinder rotor engine |
| CN105619873A (en) * | 2016-03-25 | 2016-06-01 | 北京新龙立科技有限公司 | Installation method of turning gear of tablet press |
| CN108591302A (en) * | 2018-05-28 | 2018-09-28 | 瀚伦贝尔通用航空器有限公司 | A kind of ratchet device of rotary-wing transmission |
| CN108612786A (en) * | 2018-05-28 | 2018-10-02 | 瀚伦贝尔通用航空器有限公司 | A kind of more power parallel transmissions |
| CN108662035A (en) * | 2018-07-25 | 2018-10-16 | 北京电子工程总体研究所 | A kind of mono-directional overrun clutch |
| CN111268508A (en) * | 2018-12-04 | 2020-06-12 | 怀化宇隆电工材料有限公司 | Positioning guide device for enameled wire production line |
-
2006
- 2006-05-30 CN CN 200620117877 patent/CN2931919Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100526669C (en) * | 2007-10-18 | 2009-08-12 | 东方电气集团东方汽轮机有限公司 | Automatic synchronizing clutch and water supply pump steam turbine high speed jigger device with the same |
| US8776915B2 (en) | 2008-09-10 | 2014-07-15 | Smith International, Inc. | Locking clutch for downhole motor |
| US9187955B2 (en) | 2008-09-10 | 2015-11-17 | Smith International, Inc. | Locking clutch for downhole motor |
| CN102209832A (en) * | 2008-09-10 | 2011-10-05 | 史密斯运输股份有限公司 | Locking clutch for downhole motor |
| CN101725648B (en) * | 2009-12-21 | 2012-05-23 | 大连理工大学 | Unidirectional transmission device integrated with ratchet gear |
| CN101871496A (en) * | 2010-06-04 | 2010-10-27 | 江苏森威集团有限责任公司 | Special bearing flywheel for electric power-assisted bicycle |
| CN103775496A (en) * | 2012-10-25 | 2014-05-07 | 赵广胜 | Overrunning transmission bearing and manufacturing method thereof |
| CN103775496B (en) * | 2012-10-25 | 2016-08-10 | 赵广胜 | Surmount drive bearing and manufacture method thereof |
| CN105351087A (en) * | 2014-08-20 | 2016-02-24 | 许明德 | Annular air cylinder rotor engine |
| CN105619873A (en) * | 2016-03-25 | 2016-06-01 | 北京新龙立科技有限公司 | Installation method of turning gear of tablet press |
| CN108591302A (en) * | 2018-05-28 | 2018-09-28 | 瀚伦贝尔通用航空器有限公司 | A kind of ratchet device of rotary-wing transmission |
| CN108612786A (en) * | 2018-05-28 | 2018-10-02 | 瀚伦贝尔通用航空器有限公司 | A kind of more power parallel transmissions |
| CN108662035A (en) * | 2018-07-25 | 2018-10-16 | 北京电子工程总体研究所 | A kind of mono-directional overrun clutch |
| CN111268508A (en) * | 2018-12-04 | 2020-06-12 | 怀化宇隆电工材料有限公司 | Positioning guide device for enameled wire production line |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2931919Y (en) | Ratchet and ratchet pawl type overrunning clutch | |
| CN201714944U (en) | One-way transmission gear | |
| CN108488326A (en) | More bent axle cycloidal planetary gear speed reducers | |
| JP4598592B2 (en) | Clutch device, motor device, and wiper motor | |
| CN2934734Y (en) | Surpassing clutch | |
| CN2767749Y (en) | Roller type monodirectional device | |
| CN100445597C (en) | Bidirectional drive | |
| CN201190767Y (en) | Speed reducing mechanism on one way clutch | |
| CN202016561U (en) | Electromagnetically controlled overrunning clutch type gear-shifting and speed-changing device | |
| CN1388330A (en) | Magnetic device for transferring mechanical orbiting | |
| CN101358417B (en) | End face single wave movable teeth reducer of washing machine decelerating clutch | |
| CN2550959Y (en) | Device for transfering mechanical rotation movement by using magnetic force | |
| CN201089845Y (en) | End face single wave oscillating tooth decelerator of washing machine slowing-down clutch | |
| CN102647116A (en) | Magnetic transmission machine device | |
| CN108999945A (en) | A kind of rocking bar driven wheel power mechanism | |
| CN2934635Y (en) | Ratch type one-way clutch | |
| CN217328304U (en) | Two-stage cycloid speed reducer | |
| CN216328329U (en) | Robot integrated driving flexible driver | |
| CN2356049Y (en) | Swing needle mechanism for sewing disc machine | |
| CN204533436U (en) | A kind of cycloid disc of speed reducer | |
| CN2516747Y (en) | Non-rotation internal tooth driven few tooth difference auto-lock speed reducer | |
| CN113910213B (en) | Robot integrated driving flexible driver and driving method thereof | |
| CN2594533Y (en) | One-way ratchet clutch | |
| CN220559035U (en) | High-speed dispersion kettle | |
| CN210565883U (en) | Encircling clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070808 |