CN203248564U - Overrunning clutch - Google Patents
Overrunning clutch Download PDFInfo
- Publication number
- CN203248564U CN203248564U CN 201320223738 CN201320223738U CN203248564U CN 203248564 U CN203248564 U CN 203248564U CN 201320223738 CN201320223738 CN 201320223738 CN 201320223738 U CN201320223738 U CN 201320223738U CN 203248564 U CN203248564 U CN 203248564U
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- Prior art keywords
- fixed block
- steel fixed
- magnetic steel
- transmission shaft
- angle
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 87
- 239000010959 steel Substances 0.000 claims abstract description 87
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 29
- 239000004020 conductor Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004577 thatch Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Abstract
The utility model discloses an overrunning clutch. The overrunning clutch comprises a base, bearings, a transmission shaft, a limiting circular ring, fixed shafts, rotary shafts, magnetic steel fixing blocks and non-magnetic metal disk, wherein the non-magnetic disk is fixed at the upper end of the transmission shaft, the limiting circular ring is fixed on the outer edge of the upper end of the base, the fixed shafts are fixed at the upper end of the base along the inner side of the limiting circular ring, each rotary shaft is fixed on each fixed shaft in a pivot mode, a pair of magnetic steel fixing blocks is fixed on each rotary shaft, a pair of permanent magnets with the opposite magnetic poles is fixed at the second end of each pair of the magnetic steel fixing blocks, and the non-magnetic metal disk is arranged among the rotary shafts. According to the overrunning clutch, the Lenz's law is used, force is transmitted to the base from the transmission shaft, non-contact overrunning separation and reunion is achieved, and due to the fact that the permanent magnets do not make contact with the non-magnetic metal disk, friction does not exist, impact force is quite small, abrasion cannot be caused, and the service life of the overrunning clutch can be greatly prolonged.
Description
Technical field
The utility model relates to clutch, particularly a kind of free wheel device.
Background technique
Free wheel device is one of mechanically operated basic part, it is the vitals for transmission of power between prime mover and the working machine or between machine intimate driving shaft and the driven shaft and separation function, it is the conversion that utilizes velocity variations or the sense of rotation of principal and subordinate's parts, realizes the voluntarily device of clutch function.Common free wheel device has pawl type free wheel device, roller-type overrunning clutch and Wedge type over running clutch.
The pawl type free wheel device is to utilize the mutual chimeric of parts in the structure or separate to come the transmission of realizable force or surmount, in conjunction with the time have and impact and noise;
Roller-type overrunning clutch is comprised of inner ring, roller, outer ring, spring and ejector pin etc., and general inner ring is driving link, and the outer ring is driven member.When inner ring rotated counterclockwise, roller was driven outer ring rotating, the clutch combination by wedging; When inner ring clockwise rotated, roller was retracted into the sipes position, and the outer ring is then motionless, clutch separation.If the outer ring is driven and the inner ring rotating in same direction by another system, when the outer ring rotating speed was lower than inner ring, clutch was automatic combination, if the outer ring rotating speed is higher than inner ring, clutch then separates automatically.
Wedge overrunning clutch replaces roller as the wedging part with deformed wedge, is a kind of clutch that forms friction pair with voussoir and inside and outside raceway.Without relative movement, turn to identically when between interior ring, outer shroud and voussoir, rotating speed equates, could transmitting torque, otherwise be relative sliding, the sliding mode of this not transmitting torque is called and surmounts.Wedge overrunning clutch mainly contain basic model, without inner ring type and the band bearing type, its Connecting format is divided into key connection, gear connection, belt wheel connection, sprocket wheel connection, bolt connection etc.
The free wheel device of above-mentioned these common structures is the mechanical bond transmitted powers that pass through between principal and subordinate's parts, and parts are not shock-resistant, and are easy to wear, and after may wear to a certain degree, clutch lost efficacy, and the life-span is shorter.
The model utility content
The technical problems to be solved in the utility model provides a kind of free wheel device, and not easy to wear, shock-resistant, the life-span is long.
For solving the problems of the technologies described above, the kind free wheel device that the utility model provides comprises pedestal, bearing, transmission shaft, spacing annulus, stationary axle, rotating shaft, magnet steel fixed block, magnetic conductive metal dish not;
Described bearing is circular tube shaped;
Described not magnetic conductive metal dish, the center is fixed on the upper end of described transmission shaft;
The intermediate portion of described transmission shaft, pivot are fixed in the described bearing;
The upper end of described transmission shaft is for magnet case or be fixed with the magnetic conduction annulus;
Described pedestal, pivot are fixed in outside the described bearing;
Described spacing annulus, the outer rim of fixing described pedestal upper end is magnetic conductive material not;
Described pedestal, bearing, transmission shaft, spacing annulus, magnetic conductive metal dish coaxial line not;
Described stationary axle has N, and N stationary axle is separately fixed at the upper end of described pedestal along described spacing annulus inboard, and the axis of each stationary axle is parallel to the axis of transmission shaft and equal to the distance of the axis of transmission shaft, and N is positive integer;
Described rotating shaft has N, and each rotating shaft respectively pivot is fixed on the stationary axle, and each rotating shaft is fixed with a secondary magnet steel fixed block;
Every secondary magnet steel fixed block comprises a upper magnetic steel fixed block, a lower magnetic steel fixed block;
The upper magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the upper end of a rotating shaft, and the second end below is fixed with a permanent magnet;
The lower magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the lower end of this rotating shaft, and the second end top is fixed with a permanent magnet;
The polarity of the permanent magnet of fixing on fixing permanent magnet and the lower magnetic steel fixed block on the upper magnetic steel fixed block is opposite;
The first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block has a projection;
Described not magnetic conductive metal dish places between N the rotating shaft;
When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during less than or equal to the first angle, the projection of the first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block abuts on the described spacing annulus, limits this angle and diminishes; When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during more than or equal to the second angle, abutting on the described spacing annulus of the second end of upper magnetic steel fixed block and/or lower magnetic steel fixed block limited this angle and become large; When the two ends of described magnet steel fixed block line is spent less than or equal to third angle to the angle of the line of the upper end of described transmission shaft with the upper end of its place rotating shaft, the outer peripheral portion of described not magnetic conductive metal dish places the upper magnetic steel fixed block of each secondary magnet steel fixed block with between the lower magnetic steel fixed block, and the third angle degree is greater than the first angle and less than the second angle.
Better, described pedestal, stationary axle are magnetic conductive material not.
Better, described pedestal, spacing annulus, stationary axle are aluminum alloy material.
Better, N be 4,5 or 6, N stationary axle be fixed on the upper end of described pedestal 3 along inboard evenly distribution of described spacing annulus;
Better, described not magnetic conductive metal dish is copper material or aluminium material;
Better, permanent magnet fixing on the upper magnetic steel fixed block is the N utmost point, permanent magnet fixing on the lower magnetic steel fixed block is the S utmost point.
Free wheel device of the present utility model, utilize that stupefied thatch law---the closing coil cutting magnetic line can produce the principle of reaction force (resistance), power is delivered on the pedestal by transmission shaft, realize contactless overdrive clutch, because permanent magnet does not contact with magnetic conductive metal dish not, not friction, so impact force is minimum, also can not cause wearing and tearing, the life-span of clutch prolongs greatly, and it is easy to wear thoroughly to have solved clutch, not shock-resistant, the problem that life-span is short, free wheel device of the present utility model, the wind power generating set etc. that is particularly useful for bilobed wheel has the occasion of greater impact load.
Description of drawings
In order to be illustrated more clearly in the technical solution of the utility model, the below does simple the introduction to the accompanying drawing of the required use of the utility model, apparently, accompanying drawing in the following describes only is embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is free wheel device one embodiment's axial section schematic representation of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is free wheel device one embodiment's of the present utility model state of rest schematic representation;
Fig. 4 is free wheel device one embodiment's of the present utility model overdrive clutch view.
The stupefied thatch law of Fig. 5 schematic representation.
Embodiment
Below in conjunction with accompanying drawing, the technological scheme in the utility model is carried out clear, complete description, obviously, described embodiment is a part of embodiment of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, all other embodiments that those of ordinary skills obtain under the prerequisite of not making creative work belong to the scope that the utility model is protected.
Free wheel device one mode of execution to shown in Figure 4, comprises pedestal 3, bearing 10, transmission shaft 9, spacing annulus 31, stationary axle 4, rotating shaft 2, magnet steel fixed block 5, permanent magnet 6, magnetic conductive metal dish 1 not such as Fig. 1;
Described bearing 10 is circular tube shaped;
Described not magnetic conductive metal dish 1, the center is fixed on the upper end of described transmission shaft 9; Better, magnetic conductive metal dish 1 is not copper material or aluminium material;
The intermediate portion of described transmission shaft 9, pivot are fixed in the described bearing 10;
The upper end of described transmission shaft 9 is for magnet case or be fixed with magnetic conduction annulus 14;
Described pedestal 3, pivot are fixed in outside the described bearing 10;
Described spacing annulus 31, the outer rim of fixing described pedestal 3 upper ends is magnetic conductive material not, for example can be aluminum alloy material;
Described pedestal 3, bearing 10, transmission shaft 9, spacing annulus 31, magnetic conductive metal dish 1 coaxial line not;
Described stationary axle 4 has N, and N stationary axle 4 is separately fixed at the upper end of described pedestal 3 along described spacing annulus 31 inboards, and the axis of each stationary axle 4 is parallel to the axis of transmission shaft 9 and equal to the distance of the axis of transmission shaft 9, and N is positive integer; Better, N be 4,5 or 6, N stationary axle 4 be fixed on the upper end of described pedestal 3 along described spacing annulus 31 inboard evenly distributions;
Described rotating shaft 2 has N, and each rotating shaft 2 respectively pivot is fixed on the stationary axle 4, and each rotating shaft 2 is fixed with a secondary magnet steel fixed block 5;
Every secondary magnet steel fixed block comprises a upper magnetic steel fixed block, a lower magnetic steel fixed block;
The upper magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the upper end of a rotating shaft 2, and the second end below is fixed with a permanent magnet 6;
The lower magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the lower end of this rotating shaft 2, and the second end top is fixed with a permanent magnet 6;
The polarity of the permanent magnet 6 of fixing on fixing permanent magnet 6 and the lower magnetic steel fixed block on the upper magnetic steel fixed block is opposite; For example, permanent magnet 6 fixing on the upper magnetic steel fixed block is the N utmost point, the S utmost point of fixing permanent magnet 6 on the lower magnetic steel fixed block;
The first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block has a projection 51;
Described not magnetic conductive metal dish 1 places between N the rotating shaft 2;
When the two ends of described magnet steel fixed block 5 line with the upper end of its place rotating shaft 2 to the angle of the line of the upper end of described transmission shaft 9 during less than or equal to the first angle, the projection 51 of the first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block abuts on the described spacing annulus 31, limits this angle and diminishes; When the two ends of described magnet steel fixed block 5 line with the upper end of its place rotating shaft 2 to the angle of the line of the upper end of described transmission shaft 9 during more than or equal to the second angle, abutting on the described spacing annulus 31 of the second end of upper magnetic steel fixed block and/or lower magnetic steel fixed block limited this angle and become large; When the two ends of described magnet steel fixed block 5 line is spent less than or equal to third angle to the angle of the line of the upper end of described transmission shaft 9 with the upper end of its place rotating shaft 2, the outer peripheral portion of described not magnetic conductive metal dish 1 places the upper magnetic steel fixed block of each secondary magnet steel fixed block 5 with between the lower magnetic steel fixed block, and the third angle degree is greater than the first angle and less than the second angle.
Better, described pedestal 3, stationary axle 4 are magnetic conductive material not, for example can be aluminum alloy material.
Free wheel device of the present utility model, when pedestal 3 and transmission shaft 9 are static, as shown in Figure 3, the projection 51 of each magnet steel fixed block 5 first end is with the active force of spacing annulus 31, and the permanent magnet 6 that the second end is fixed is with the gravitation between the magnetic conduction annulus of the upper end of transmission shaft 9, make really fixed position of top that the fixing permanent magnet 6 of upper magnetic steel fixed block 5 second ends of each rotating shaft 2 upper ends is positioned at magnetic conductive metal dish 1 not, make really fixed position of below that the fixing permanent magnet 6 of lower magnetic steel fixed block 5 second ends of each rotating shaft 2 lower ends is positioned at magnetic conductive metal dish 1 not, the magnetic line of force that the permanent magnet that every secondary magnet steel fixed block 5 is fixed is 6 passes the not outer peripheral portion of magnetic conductive metal dish 1; When transmission shaft 9 drove magnetic conductive metal dish 1 rotation, magnetic conductive metal dish 1 cutting magnetic line was not shown in Figure 5, and according to Lenz's law, magnetic conductive metal dish 1 hinders relative movement with producing electromagnetic resistance between magnet steel fixed block 5 and the permanent magnet 6.Because the projection 51 of magnet steel fixed block 5 first ends is resisted against on the described spacing annulus 31, electromagnetic resistance can drive pedestal 3 and magnetic conductive metal dish 1(transmission shaft 9 not) rotating in same direction; When pedestal 3 rotates, the magnet steel fixed block 5 and the permanent magnet 6 that are installed in the rotating shaft 2 can produce centrifugal force, when rotating, pedestal 3 reaches setting speed, the centrifugal force of magnet steel fixed block 5 and permanent magnet 6 is during greater than the influence power in gravity and magnetic field, magnet steel fixed block 5 and permanent magnet 6 are around stationary axle 4 rotations, make not that magnetic conductive metal dish 1 breaks away from from the magnetic field of permanent magnet 6, as shown in Figure 4, realize overdrive clutch.
Free wheel device of the present utility model, utilize that stupefied thatch law---the closing coil cutting magnetic line can produce the principle of reaction force (resistance), power is delivered on the pedestal by transmission shaft, realize contactless overdrive clutch, because permanent magnet does not contact with magnetic conductive metal dish not, not friction, so impact force is minimum, also can not cause wearing and tearing, the life-span of clutch prolongs greatly, and it is easy to wear thoroughly to have solved clutch, not shock-resistant, the problem that life-span is short, free wheel device of the present utility model, the wind power generating set etc. that is particularly useful for bilobed wheel has the occasion of greater impact load.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (6)
1. a free wheel device comprises pedestal, bearing, transmission shaft, it is characterized in that, also comprises spacing annulus, stationary axle, rotating shaft, magnet steel fixed block, magnetic conductive metal dish not;
Described bearing is circular tube shaped;
Described not magnetic conductive metal dish, the center is fixed on the upper end of described transmission shaft;
The intermediate portion of described transmission shaft, pivot are fixed in the described bearing;
The upper end of described transmission shaft is for magnet case or be fixed with the magnetic conduction annulus;
Described pedestal, pivot are fixed in outside the described bearing;
Described spacing annulus, the outer rim of fixing described pedestal upper end is magnetic conductive material not;
Described pedestal, bearing, transmission shaft, spacing annulus, magnetic conductive metal dish coaxial line not;
Described stationary axle has N, and N stationary axle is separately fixed at the upper end of described pedestal along described spacing annulus inboard, and the axis of each stationary axle is parallel to the axis of transmission shaft and equal to the distance of the axis of transmission shaft, and N is positive integer;
Described rotating shaft has N, and each rotating shaft respectively pivot is fixed on the stationary axle, and each rotating shaft is fixed with a secondary magnet steel fixed block;
Every secondary magnet steel fixed block comprises a upper magnetic steel fixed block, a lower magnetic steel fixed block;
The upper magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the upper end of a rotating shaft, and the second end below is fixed with a permanent magnet;
The lower magnetic steel fixed block of every secondary magnet steel fixed block, first end is fixed in the lower end of this rotating shaft, and the second end top is fixed with a permanent magnet;
The polarity of the permanent magnet of fixing on fixing permanent magnet and the lower magnetic steel fixed block on the upper magnetic steel fixed block is opposite;
The first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block has a projection;
Described not magnetic conductive metal dish places between N the rotating shaft;
When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during less than or equal to the first angle, the projection of the first end of upper magnetic steel fixed block and/or lower magnetic steel fixed block abuts on the described spacing annulus, limits this angle and diminishes; When the two ends of described magnet steel fixed block line with the upper end of its place rotating shaft to the angle of the line of the upper end of described transmission shaft during more than or equal to the second angle, abutting on the described spacing annulus of the second end of upper magnetic steel fixed block and/or lower magnetic steel fixed block limited this angle and become large; When the two ends of described magnet steel fixed block line is spent less than or equal to third angle to the angle of the line of the upper end of described transmission shaft with the upper end of its place rotating shaft, the outer peripheral portion of described not magnetic conductive metal dish places the upper magnetic steel fixed block of each secondary magnet steel fixed block with between the lower magnetic steel fixed block, and the third angle degree is greater than the first angle and less than the second angle.
2. free wheel device according to claim 1 is characterized in that,
Described pedestal, stationary axle are magnetic conductive material not.
3. free wheel device according to claim 2 is characterized in that,
Described pedestal, spacing annulus, stationary axle are aluminum alloy material.
4. free wheel device according to claim 1 is characterized in that,
N be 4,5 or 6, N stationary axle be fixed on the upper end of described pedestal 3 along inboard evenly distribution of described spacing annulus.
5. free wheel device according to claim 1 is characterized in that,
Described not magnetic conductive metal dish is copper material or aluminium material.
6. free wheel device according to claim 1 is characterized in that,
Permanent magnet fixing on the upper magnetic steel fixed block is the N utmost point, and permanent magnet fixing on the lower magnetic steel fixed block is the S utmost point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223738 CN203248564U (en) | 2013-04-27 | 2013-04-27 | Overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320223738 CN203248564U (en) | 2013-04-27 | 2013-04-27 | Overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248564U true CN203248564U (en) | 2013-10-23 |
Family
ID=49375003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320223738 Expired - Fee Related CN203248564U (en) | 2013-04-27 | 2013-04-27 | Overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203248564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244577A (en) * | 2013-04-27 | 2013-08-14 | 上海法诺格绿色能源系统有限公司 | Overrunning clutch |
-
2013
- 2013-04-27 CN CN 201320223738 patent/CN203248564U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244577A (en) * | 2013-04-27 | 2013-08-14 | 上海法诺格绿色能源系统有限公司 | Overrunning clutch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |