CN201265610Y - Magnetic reset overrun clutch with magnetic coupling brake - Google Patents
Magnetic reset overrun clutch with magnetic coupling brake Download PDFInfo
- Publication number
- CN201265610Y CN201265610Y CNU2007201955176U CN200720195517U CN201265610Y CN 201265610 Y CN201265610 Y CN 201265610Y CN U2007201955176 U CNU2007201955176 U CN U2007201955176U CN 200720195517 U CN200720195517 U CN 200720195517U CN 201265610 Y CN201265610 Y CN 201265610Y
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- China
- Prior art keywords
- magnetic force
- ratchet
- magnetic
- wheel device
- free wheel
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- Expired - Fee Related
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- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The utility model relates to a magnetic reposition overrun clutch with a magnetic coupling brake. A ratchet wheel and pawl type magnetic reposition overrun clutch (a) is coaxially connected with a magnetic coupling brake (b) and is provided with a ratchet wheel (8), a pawl (9), a pawl disk (6) and a magnetic repositioning device, an inner rotor and an outer rotor of the magnetic coupling brake (b) are provided with N and S magnets (2) and (3) which are alternately arrayed, and the pawl (9) completes reposition by depending on the magnetic repositioning device fixed on the pawl disk (6) to solve the problem in the prior art that springs are easy to break when being used for reposition. When the magnetic reposition overrun clutch (a) is in an overrun state, the magnetic coupling brake generates speed difference, and the N and S magnets (2) and (3) on the inner rotor and the outer rotor have mutual attracting force to control overrun rotate speed in a needed range and achieve a reliable operating purpose.
Description
Affiliated technical field
The utility model relates to a kind of magnetic force that has magnetic force coupling break free wheel device that resets, and is applied to mechanical transmission.
Background technique
The click structure of click formula free wheel device has the advantage of long service life, high working efficiency, is the preferred of artificer.But in the click formula free wheel device of conventional construction, ratchet is to rely on the elastic reset of spring and ratchet engagement, when surmounting, Returnning spring is operated in frequent and the compression at a high speed and the state of elongation fracture easily, thereby causes the free wheel device inefficacy.
China utility model patent CN91208227.5 discloses a kind of inertial centrifugal formula ratchet.Below its ratchet, be provided with a magnet ring.When ratchet rotated, ratchet is outside and ratchet engagement under action of centrifugal force, and magnet ring keeps ratchet and ratchet engagement.When ratchet rotates dumbly, its resistance is greater than centrifugal force the time, and this ratchet can lose efficacy.
China utility model patent ZL00254031.2 discloses the free wheel device that a kind of ratchet relies on magnetic force to reset, and has avoided using the defective of spring reset.This clutch only is applicable to engineering machinery.
Summary of the invention
In order to overcome that existing click formula free wheel device Returnning spring fractures easily and can not to control the deficiency of its rotating speed when surmounting, the utility model provides a kind of magnetic force that has magnetic force coupling break free wheel device that resets, this free wheel device has not only solved because of spring fracture causes the free wheel device Problem of Failure, is operated in rotating speed problem out of control when surmounting but also solved free wheel device.
The technological scheme that its technical problem that solves the utility model adopts is: the magnetic force resetting means is installed in place that can magnetic ratchet afterbody on pawl disk, and ratchet resets with magnetic force and replaces spring reset and avoided the spring fracture inefficacy, reaches the purpose of reliably working.The coaxial magnetic force coupling break of having installed on magnetic force resets free wheel device, when the magnetic force free wheel device that resets is operated in when surmounting state, magnetic force coupling break can produce braking action, and it surmounts the purpose of rotating speed reliably working to reach control.
The beneficial effects of the utility model are that reliable operation does not have wearing and tearing, when clutch surmounts, can control it and surmount rotating speed at required scope, applied range.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the ring internal tooth click magnetic force structural drawing that free wheel device and cylindrical shape magnetic force coupling break forms that resets.
Fig. 2 is the sectional view of Fig. 1, and its first half is the sectional view A-A of Fig. 1 cylindrical shape magnetic force coupling break, and Lower Half is the reset sectional view B-B of free wheel device of Fig. 1 ring internal tooth click magnetic force.
Fig. 3 is the ring external tooth click magnetic force structural drawing that free wheel device and cylindrical shape magnetic force coupling break forms that resets.
Fig. 4 is the sectional view of Fig. 3, and its first half is the sectional view A-A of Fig. 3 cylindrical shape magnetic force coupling break, and Lower Half is the reset sectional view B-B of free wheel device of Fig. 3 ring external tooth click magnetic force.
Fig. 5 is pawl structures figure.
Embodiment
See Fig. 1 and Fig. 2, ring click formula magnetic force free wheel device (a) and cylindrical shape magnetic force coupling coaxial being connected of break (b) that reset, ratchet (9) is installed on the pawl disk (6) by bearing pin (7).Ratchet (8) is installed together by bearing (5) with pawl disk (6) can coaxial rotation.The stem (c) of ratchet (9) and the ratchet engagement of ratchet (8).The insert hole that the magnetic force resetting means is made in place that can magnetic ratchet afterbody (e) on pawl disk (6), magnet installation sleeve (11) is made into shell-like by nonmagnetic substance, with magnet (10) encase be fixed on the pawl disk (6) can the insert hole of magnetic ratchet (9) afterbody (e) in.The magnetic force resetting means attracts ratchet afterbody (e) all the time, and according to lever principle, ratchet stem (c) is pressed to ratchet all the time.When ratchet (9) was operated in reset mode before the engagement, the strength of magnetic was big apart from the magnetic force resetting means is near for its afterbody (e), and the strength that resets is also big, make reset more reliable.Ratchet (9) is operated in when surmounting state, and magnetic strength is little apart from the magnetic force resetting means is far away for its afterbody (e), and ratchet stem (c) is little with the footprint pressure of ratchet, has reduced wearing and tearing.
The quantity of the ratchet number of ratchet (8) and ratchet (9) is prime number each other, has only a ratchet (9) and ratchet engagement at every turn, has reduced time to end angle, has avoided the mesh impact vibration, is worked in clutch smooth and steady ground.
External rotor (1), the internal rotor (4) of magnetic force coupling break (b) link with ratchet (8) and pawl disk (6) respectively, with ratchet (8) pawl disk (6) coaxial rotation.Magnet (2) and (3) of equal number are installed with N, S utmost point mode alternately respectively on external rotor (1) and internal rotor (4), attract each other in magnet (2) and (3) on external rotor (1) and the internal rotor (4).When magnetic force resets free wheel device (a) when being operated in engagement, the ratchet of coaxial rotation (8) does not produce speed discrepancy with pawl disk (6), the external rotor (1) and the internal rotor (4) of the magnetic force coupling break (b) of coaxial rotation do not produce speed discrepancy yet, and magnetic coupling break (b) does not produce the magnetic braking effect.When the magnetic force free wheel device (a) that resets is operated in and surmounts state, when ratchet (8) produces speed discrepancy with pawl disk (6), the magnetic force coupling break of coaxial rotation also produces speed discrepancy, the strength of utilizing N on external rotor (1) and the internal rotor (4), S magnet (2) and (3) to attract each other, control magnetic force reset rotating speed that free wheel device (a) surmounts in required scope.Make that using machinery of the present utility model can work safely and reliably.
See Fig. 5, ratchet is divided into stem (c), axle hole (d) and afterbody (e).Ratchet stem (c) kept flat forward overlook ratchet on the table and be T font structure, ratchet stem (c) is wider than other positions.This structure makes the ratchet stem (c) and the area of contact of ratchet increase, and reduces pressure, has improved working life.This structure makes the wide position that goes out of ratchet stem (c) play position-limiting action, and restriction ratchet height of jumping reduces the response time, reduces vibration, reduces noise and wearing and tearing.
Claims (7)
1. a magnetic force that has magnetic force coupling break free wheel device that resets, be connected by ratchet, ratchet, pawl disk, bearing pin, it is characterized in that: click formula magnetic force free wheel device (a) and magnetic force coupling coaxial being connected of break (b) that reset, the click formula magnetic force free wheel device (a) that resets is equipped with ratchet (8), ratchet (9), pawl disk (6), magnetic force resetting means, on the inside and outside rotor of magnetic force coupling break (b) N, S magnet (2) and (3) alternately is housed.
2. a kind of magnetic force that has magnetic force coupling break according to claim 1 free wheel device that resets, it is characterized in that: the number of ratchet (8) ratchet and the quantity of ratchet (9) is prime number each other.
3. a kind of magnetic force that has magnetic force coupling break according to claim 1 free wheel device that resets, it is characterized in that: the stem (c) of ratchet (9) is wider than other position, ratchet stem (c) is kept flat forward overlook ratchet on the table and be T font structure.
4. a kind of magnetic force that has magnetic force coupling break according to claim 1 free wheel device that resets, it is characterized in that: the magnet installation sleeve (11) of magnetic force resetting means is made into shell-like by nonmagnetic substance, with magnet (10) encase be fixed on the pawl disk (6) can the insert hole of magnetic ratchet (9) afterbody (e) in.
5. a kind of magnetic force that has magnetic force coupling break according to claim 1 free wheel device that resets is characterized in that T font ratchet (9) is installed on the pawl disk (6) that the magnetic force resetting means is housed by bearing pin (7).
6. a kind of magnetic force that has magnetic force coupling break according to claim 1 free wheel device that resets, it is characterized in that: external rotor (1) and internal rotor (4) are made columnar structured.
7. a kind of magnetic force that has magnetic force coupling break according to claim 1 free wheel device that resets is characterized in that: external rotor (1) and coaxial connection of ratchet (8), internal rotor (4) and coaxial connection of pawl disk (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201955176U CN201265610Y (en) | 2007-11-01 | 2007-11-01 | Magnetic reset overrun clutch with magnetic coupling brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201955176U CN201265610Y (en) | 2007-11-01 | 2007-11-01 | Magnetic reset overrun clutch with magnetic coupling brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201265610Y true CN201265610Y (en) | 2009-07-01 |
Family
ID=40831977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201955176U Expired - Fee Related CN201265610Y (en) | 2007-11-01 | 2007-11-01 | Magnetic reset overrun clutch with magnetic coupling brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201265610Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352894A (en) * | 2011-09-22 | 2012-02-15 | 浙江工业大学 | Limited overrunning clutch |
| CN106931055A (en) * | 2015-12-29 | 2017-07-07 | 简志伟 | Transmission device |
-
2007
- 2007-11-01 CN CNU2007201955176U patent/CN201265610Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352894A (en) * | 2011-09-22 | 2012-02-15 | 浙江工业大学 | Limited overrunning clutch |
| CN106931055A (en) * | 2015-12-29 | 2017-07-07 | 简志伟 | Transmission device |
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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: 20090701 Termination date: 20131101 |